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chromium / external / github.com / sqlite / sqlite / refs/heads/partial-index-terms / . / src / shell.c.in
blob: 2d382a681a027a32ecf8c4a6abb437822cc16caf [file] [log] [blame]
/*
** 2001 September 15
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code to implement the "sqlite" command line
** utility for accessing SQLite databases.
*/
#if (defined(_WIN32) || defined(WIN32)) && !defined(_CRT_SECURE_NO_WARNINGS)
/* This needs to come before any includes for MSVC compiler */
#define _CRT_SECURE_NO_WARNINGS
#endif
typedef unsigned int u32;
typedef unsigned short int u16;
/*
** Optionally #include a user-defined header, whereby compilation options
** may be set prior to where they take effect, but after platform setup.
** If SQLITE_CUSTOM_INCLUDE=? is defined, its value names the #include
** file. Note that this macro has a like effect on sqlite3.c compilation.
*/
# define SHELL_STRINGIFY_(f) #f
# define SHELL_STRINGIFY(f) SHELL_STRINGIFY_(f)
#ifdef SQLITE_CUSTOM_INCLUDE
# include SHELL_STRINGIFY(SQLITE_CUSTOM_INCLUDE)
#endif
/*
** Determine if we are dealing with WinRT, which provides only a subset of
** the full Win32 API.
*/
#if !defined(SQLITE_OS_WINRT)
# define SQLITE_OS_WINRT 0
#endif
/*
** If SQLITE_SHELL_FIDDLE is defined then the shell is modified
** somewhat for use as a WASM module in a web browser. This flag
** should only be used when building the "fiddle" web application, as
** the browser-mode build has much different user input requirements
** and this build mode rewires the user input subsystem to account for
** that.
*/
/*
** Warning pragmas copied from msvc.h in the core.
*/
#if defined(_MSC_VER)
#pragma warning(disable : 4054)
#pragma warning(disable : 4055)
#pragma warning(disable : 4100)
#pragma warning(disable : 4127)
#pragma warning(disable : 4130)
#pragma warning(disable : 4152)
#pragma warning(disable : 4189)
#pragma warning(disable : 4206)
#pragma warning(disable : 4210)
#pragma warning(disable : 4232)
#pragma warning(disable : 4244)
#pragma warning(disable : 4305)
#pragma warning(disable : 4306)
#pragma warning(disable : 4702)
#pragma warning(disable : 4706)
#endif /* defined(_MSC_VER) */
/*
** No support for loadable extensions in VxWorks.
*/
#if (defined(__RTP__) || defined(_WRS_KERNEL)) && !SQLITE_OMIT_LOAD_EXTENSION
# define SQLITE_OMIT_LOAD_EXTENSION 1
#endif
/*
** Enable large-file support for fopen() and friends on unix.
*/
#ifndef SQLITE_DISABLE_LFS
# define _LARGE_FILE 1
# ifndef _FILE_OFFSET_BITS
# define _FILE_OFFSET_BITS 64
# endif
# define _LARGEFILE_SOURCE 1
#endif
#if defined(SQLITE_SHELL_FIDDLE) && !defined(_POSIX_SOURCE)
/*
** emcc requires _POSIX_SOURCE (or one of several similar defines)
** to expose strdup().
*/
# define _POSIX_SOURCE
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <math.h>
#include "sqlite3.h"
typedef sqlite3_int64 i64;
typedef sqlite3_uint64 u64;
typedef unsigned char u8;
#if SQLITE_USER_AUTHENTICATION
# include "sqlite3userauth.h"
#endif
#include <ctype.h>
#include <stdarg.h>
#if !defined(_WIN32) && !defined(WIN32)
# include <signal.h>
# if !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI)
# include <pwd.h>
# endif
#endif
#if (!defined(_WIN32) && !defined(WIN32)) || defined(__MINGW32__)
# include <unistd.h>
# include <dirent.h>
# define GETPID getpid
# if defined(__MINGW32__)
# define DIRENT dirent
# ifndef S_ISLNK
# define S_ISLNK(mode) (0)
# endif
# endif
#else
# define GETPID (int)GetCurrentProcessId
#endif
#include <sys/types.h>
#include <sys/stat.h>
#if HAVE_READLINE
# include <readline/readline.h>
# include <readline/history.h>
#endif
#if HAVE_EDITLINE
# include <editline/readline.h>
#endif
#if HAVE_EDITLINE || HAVE_READLINE
# define shell_add_history(X) add_history(X)
# define shell_read_history(X) read_history(X)
# define shell_write_history(X) write_history(X)
# define shell_stifle_history(X) stifle_history(X)
# define shell_readline(X) readline(X)
#elif HAVE_LINENOISE
# include "linenoise.h"
# define shell_add_history(X) linenoiseHistoryAdd(X)
# define shell_read_history(X) linenoiseHistoryLoad(X)
# define shell_write_history(X) linenoiseHistorySave(X)
# define shell_stifle_history(X) linenoiseHistorySetMaxLen(X)
# define shell_readline(X) linenoise(X)
#else
# define shell_read_history(X)
# define shell_write_history(X)
# define shell_stifle_history(X)
# define SHELL_USE_LOCAL_GETLINE 1
#endif
#ifndef deliberate_fall_through
/* Quiet some compilers about some of our intentional code. */
# if defined(GCC_VERSION) && GCC_VERSION>=7000000
# define deliberate_fall_through __attribute__((fallthrough));
# else
# define deliberate_fall_through
# endif
#endif
#if defined(_WIN32) || defined(WIN32)
# if SQLITE_OS_WINRT
# define SQLITE_OMIT_POPEN 1
# else
# include <io.h>
# include <fcntl.h>
# define isatty(h) _isatty(h)
# ifndef access
# define access(f,m) _access((f),(m))
# endif
# ifndef unlink
# define unlink _unlink
# endif
# ifndef strdup
# define strdup _strdup
# endif
# undef popen
# define popen _popen
# undef pclose
# define pclose _pclose
# endif
#else
/* Make sure isatty() has a prototype. */
extern int isatty(int);
# if !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI)
/* popen and pclose are not C89 functions and so are
** sometimes omitted from the <stdio.h> header */
extern FILE *popen(const char*,const char*);
extern int pclose(FILE*);
# else
# define SQLITE_OMIT_POPEN 1
# endif
#endif
#if defined(_WIN32_WCE)
/* Windows CE (arm-wince-mingw32ce-gcc) does not provide isatty()
* thus we always assume that we have a console. That can be
* overridden with the -batch command line option.
*/
#define isatty(x) 1
#endif
/* ctype macros that work with signed characters */
#define IsSpace(X) isspace((unsigned char)X)
#define IsDigit(X) isdigit((unsigned char)X)
#define ToLower(X) (char)tolower((unsigned char)X)
#if defined(_WIN32) || defined(WIN32)
#if SQLITE_OS_WINRT
#include <intrin.h>
#endif
#undef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
/* string conversion routines only needed on Win32 */
extern char *sqlite3_win32_unicode_to_utf8(LPCWSTR);
extern char *sqlite3_win32_mbcs_to_utf8_v2(const char *, int);
extern char *sqlite3_win32_utf8_to_mbcs_v2(const char *, int);
extern LPWSTR sqlite3_win32_utf8_to_unicode(const char *zText);
#endif
/* On Windows, we normally run with output mode of TEXT so that \n characters
** are automatically translated into \r\n. However, this behavior needs
** to be disabled in some cases (ex: when generating CSV output and when
** rendering quoted strings that contain \n characters). The following
** routines take care of that.
*/
#if (defined(_WIN32) || defined(WIN32)) && !SQLITE_OS_WINRT
static void setBinaryMode(FILE *file, int isOutput){
if( isOutput ) fflush(file);
_setmode(_fileno(file), _O_BINARY);
}
static void setTextMode(FILE *file, int isOutput){
if( isOutput ) fflush(file);
_setmode(_fileno(file), _O_TEXT);
}
#else
# define setBinaryMode(X,Y)
# define setTextMode(X,Y)
#endif
/* True if the timer is enabled */
static int enableTimer = 0;
/* A version of strcmp() that works with NULL values */
static int cli_strcmp(const char *a, const char *b){
if( a==0 ) a = "";
if( b==0 ) b = "";
return strcmp(a,b);
}
static int cli_strncmp(const char *a, const char *b, size_t n){
if( a==0 ) a = "";
if( b==0 ) b = "";
return strncmp(a,b,n);
}
/* Return the current wall-clock time */
static sqlite3_int64 timeOfDay(void){
static sqlite3_vfs *clockVfs = 0;
sqlite3_int64 t;
if( clockVfs==0 ) clockVfs = sqlite3_vfs_find(0);
if( clockVfs==0 ) return 0; /* Never actually happens */
if( clockVfs->iVersion>=2 && clockVfs->xCurrentTimeInt64!=0 ){
clockVfs->xCurrentTimeInt64(clockVfs, &t);
}else{
double r;
clockVfs->xCurrentTime(clockVfs, &r);
t = (sqlite3_int64)(r*86400000.0);
}
return t;
}
#if !defined(_WIN32) && !defined(WIN32) && !defined(__minux)
#include <sys/time.h>
#include <sys/resource.h>
/* VxWorks does not support getrusage() as far as we can determine */
#if defined(_WRS_KERNEL) || defined(__RTP__)
struct rusage {
struct timeval ru_utime; /* user CPU time used */
struct timeval ru_stime; /* system CPU time used */
};
#define getrusage(A,B) memset(B,0,sizeof(*B))
#endif
/* Saved resource information for the beginning of an operation */
static struct rusage sBegin; /* CPU time at start */
static sqlite3_int64 iBegin; /* Wall-clock time at start */
/*
** Begin timing an operation
*/
static void beginTimer(void){
if( enableTimer ){
getrusage(RUSAGE_SELF, &sBegin);
iBegin = timeOfDay();
}
}
/* Return the difference of two time_structs in seconds */
static double timeDiff(struct timeval *pStart, struct timeval *pEnd){
return (pEnd->tv_usec - pStart->tv_usec)*0.000001 +
(double)(pEnd->tv_sec - pStart->tv_sec);
}
/*
** Print the timing results.
*/
static void endTimer(void){
if( enableTimer ){
sqlite3_int64 iEnd = timeOfDay();
struct rusage sEnd;
getrusage(RUSAGE_SELF, &sEnd);
printf("Run Time: real %.3f user %f sys %f\n",
(iEnd - iBegin)*0.001,
timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
}
}
#define BEGIN_TIMER beginTimer()
#define END_TIMER endTimer()
#define HAS_TIMER 1
#elif (defined(_WIN32) || defined(WIN32))
/* Saved resource information for the beginning of an operation */
static HANDLE hProcess;
static FILETIME ftKernelBegin;
static FILETIME ftUserBegin;
static sqlite3_int64 ftWallBegin;
typedef BOOL (WINAPI *GETPROCTIMES)(HANDLE, LPFILETIME, LPFILETIME,
LPFILETIME, LPFILETIME);
static GETPROCTIMES getProcessTimesAddr = NULL;
/*
** Check to see if we have timer support. Return 1 if necessary
** support found (or found previously).
*/
static int hasTimer(void){
if( getProcessTimesAddr ){
return 1;
} else {
#if !SQLITE_OS_WINRT
/* GetProcessTimes() isn't supported in WIN95 and some other Windows
** versions. See if the version we are running on has it, and if it
** does, save off a pointer to it and the current process handle.
*/
hProcess = GetCurrentProcess();
if( hProcess ){
HINSTANCE hinstLib = LoadLibrary(TEXT("Kernel32.dll"));
if( NULL != hinstLib ){
getProcessTimesAddr =
(GETPROCTIMES) GetProcAddress(hinstLib, "GetProcessTimes");
if( NULL != getProcessTimesAddr ){
return 1;
}
FreeLibrary(hinstLib);
}
}
#endif
}
return 0;
}
/*
** Begin timing an operation
*/
static void beginTimer(void){
if( enableTimer && getProcessTimesAddr ){
FILETIME ftCreation, ftExit;
getProcessTimesAddr(hProcess,&ftCreation,&ftExit,
&ftKernelBegin,&ftUserBegin);
ftWallBegin = timeOfDay();
}
}
/* Return the difference of two FILETIME structs in seconds */
static double timeDiff(FILETIME *pStart, FILETIME *pEnd){
sqlite_int64 i64Start = *((sqlite_int64 *) pStart);
sqlite_int64 i64End = *((sqlite_int64 *) pEnd);
return (double) ((i64End - i64Start) / 10000000.0);
}
/*
** Print the timing results.
*/
static void endTimer(void){
if( enableTimer && getProcessTimesAddr){
FILETIME ftCreation, ftExit, ftKernelEnd, ftUserEnd;
sqlite3_int64 ftWallEnd = timeOfDay();
getProcessTimesAddr(hProcess,&ftCreation,&ftExit,&ftKernelEnd,&ftUserEnd);
printf("Run Time: real %.3f user %f sys %f\n",
(ftWallEnd - ftWallBegin)*0.001,
timeDiff(&ftUserBegin, &ftUserEnd),
timeDiff(&ftKernelBegin, &ftKernelEnd));
}
}
#define BEGIN_TIMER beginTimer()
#define END_TIMER endTimer()
#define HAS_TIMER hasTimer()
#else
#define BEGIN_TIMER
#define END_TIMER
#define HAS_TIMER 0
#endif
/*
** Used to prevent warnings about unused parameters
*/
#define UNUSED_PARAMETER(x) (void)(x)
/*
** Number of elements in an array
*/
#define ArraySize(X) (int)(sizeof(X)/sizeof(X[0]))
/*
** If the following flag is set, then command execution stops
** at an error if we are not interactive.
*/
static int bail_on_error = 0;
/*
** Treat stdin as an interactive input if the following variable
** is true. Otherwise, assume stdin is connected to a file or pipe.
*/
static int stdin_is_interactive = 1;
#if (defined(_WIN32) || defined(WIN32)) && SHELL_USE_LOCAL_GETLINE \
&& !defined(SHELL_OMIT_WIN_UTF8)
# define SHELL_WIN_UTF8_OPT 1
static int console_utf8 = sizeof(char*)/4 - 1;
#else
# define SHELL_WIN_UTF8_OPT 0
static const int console_utf8 = 0;
#endif
/*
** On Windows systems we have to know if standard output is a console
** in order to translate UTF-8 into MBCS. The following variable is
** true if translation is required.
*/
static int stdout_is_console = 1;
/*
** The following is the open SQLite database. We make a pointer
** to this database a static variable so that it can be accessed
** by the SIGINT handler to interrupt database processing.
*/
static sqlite3 *globalDb = 0;
/*
** True if an interrupt (Control-C) has been received.
*/
static volatile int seenInterrupt = 0;
/*
** This is the name of our program. It is set in main(), used
** in a number of other places, mostly for error messages.
*/
static char *Argv0;
/*
** Prompt strings. Initialized in main. Settable with
** .prompt main continue
*/
#define PROMPT_LEN_MAX 20
/* First line prompt. default: "sqlite> " */
static char mainPrompt[PROMPT_LEN_MAX];
/* Continuation prompt. default: " ...> " */
static char continuePrompt[PROMPT_LEN_MAX];
/* This is variant of the standard-library strncpy() routine with the
** one change that the destination string is always zero-terminated, even
** if there is no zero-terminator in the first n-1 characters of the source
** string.
*/
static char *shell_strncpy(char *dest, const char *src, size_t n){
size_t i;
for(i=0; i<n-1 && src[i]!=0; i++) dest[i] = src[i];
dest[i] = 0;
return dest;
}
/*
** Optionally disable dynamic continuation prompt.
** Unless disabled, the continuation prompt shows open SQL lexemes if any,
** or open parentheses level if non-zero, or continuation prompt as set.
** This facility interacts with the scanner and process_input() where the
** below 5 macros are used.
*/
#ifdef SQLITE_OMIT_DYNAPROMPT
# define CONTINUATION_PROMPT continuePrompt
# define CONTINUE_PROMPT_RESET
# define CONTINUE_PROMPT_AWAITS(p,s)
# define CONTINUE_PROMPT_AWAITC(p,c)
# define CONTINUE_PAREN_INCR(p,n)
# define CONTINUE_PROMPT_PSTATE 0
typedef void *t_NoDynaPrompt;
# define SCAN_TRACKER_REFTYPE t_NoDynaPrompt
#else
# define CONTINUATION_PROMPT dynamicContinuePrompt()
# define CONTINUE_PROMPT_RESET \
do {setLexemeOpen(&dynPrompt,0,0); trackParenLevel(&dynPrompt,0);} while(0)
# define CONTINUE_PROMPT_AWAITS(p,s) \
if(p && stdin_is_interactive) setLexemeOpen(p, s, 0)
# define CONTINUE_PROMPT_AWAITC(p,c) \
if(p && stdin_is_interactive) setLexemeOpen(p, 0, c)
# define CONTINUE_PAREN_INCR(p,n) \
if(p && stdin_is_interactive) (trackParenLevel(p,n))
# define CONTINUE_PROMPT_PSTATE (&dynPrompt)
typedef struct DynaPrompt *t_DynaPromptRef;
# define SCAN_TRACKER_REFTYPE t_DynaPromptRef
static struct DynaPrompt {
char dynamicPrompt[PROMPT_LEN_MAX];
char acAwait[2];
int inParenLevel;
char *zScannerAwaits;
} dynPrompt = { {0}, {0}, 0, 0 };
/* Record parenthesis nesting level change, or force level to 0. */
static void trackParenLevel(struct DynaPrompt *p, int ni){
p->inParenLevel += ni;
if( ni==0 ) p->inParenLevel = 0;
p->zScannerAwaits = 0;
}
/* Record that a lexeme is opened, or closed with args==0. */
static void setLexemeOpen(struct DynaPrompt *p, char *s, char c){
if( s!=0 || c==0 ){
p->zScannerAwaits = s;
p->acAwait[0] = 0;
}else{
p->acAwait[0] = c;
p->zScannerAwaits = p->acAwait;
}
}
/* Upon demand, derive the continuation prompt to display. */
static char *dynamicContinuePrompt(void){
if( continuePrompt[0]==0
|| (dynPrompt.zScannerAwaits==0 && dynPrompt.inParenLevel == 0) ){
return continuePrompt;
}else{
if( dynPrompt.zScannerAwaits ){
size_t ncp = strlen(continuePrompt);
size_t ndp = strlen(dynPrompt.zScannerAwaits);
if( ndp > ncp-3 ) return continuePrompt;
strcpy(dynPrompt.dynamicPrompt, dynPrompt.zScannerAwaits);
while( ndp<3 ) dynPrompt.dynamicPrompt[ndp++] = ' ';
shell_strncpy(dynPrompt.dynamicPrompt+3, continuePrompt+3,
PROMPT_LEN_MAX-4);
}else{
if( dynPrompt.inParenLevel>9 ){
shell_strncpy(dynPrompt.dynamicPrompt, "(..", 4);
}else if( dynPrompt.inParenLevel<0 ){
shell_strncpy(dynPrompt.dynamicPrompt, ")x!", 4);
}else{
shell_strncpy(dynPrompt.dynamicPrompt, "(x.", 4);
dynPrompt.dynamicPrompt[2] = (char)('0'+dynPrompt.inParenLevel);
}
shell_strncpy(dynPrompt.dynamicPrompt+3, continuePrompt+3, PROMPT_LEN_MAX-4);
}
}
return dynPrompt.dynamicPrompt;
}
#endif /* !defined(SQLITE_OMIT_DYNAPROMPT) */
#if SHELL_WIN_UTF8_OPT
/* Following struct is used for -utf8 operation. */
static struct ConsoleState {
int stdinEof; /* EOF has been seen on console input */
int infsMode; /* Input file stream mode upon shell start */
UINT inCodePage; /* Input code page upon shell start */
UINT outCodePage; /* Output code page upon shell start */
HANDLE hConsoleIn; /* Console input handle */
DWORD consoleMode; /* Console mode upon shell start */
} conState = { 0, 0, 0, 0, INVALID_HANDLE_VALUE, 0 };
#ifndef _O_U16TEXT /* For build environments lacking this constant: */
# define _O_U16TEXT 0x20000
#endif
/*
** Prepare console, (if known to be a WIN32 console), for UTF-8
** input (from either typing or suitable paste operations) and for
** UTF-8 rendering. This may "fail" with a message to stderr, where
** the preparation is not done and common "code page" issues occur.
*/
static void console_prepare(void){
HANDLE hCI = GetStdHandle(STD_INPUT_HANDLE);
DWORD consoleMode = 0;
if( isatty(0) && GetFileType(hCI)==FILE_TYPE_CHAR
&& GetConsoleMode( hCI, &consoleMode) ){
if( !IsValidCodePage(CP_UTF8) ){
fprintf(stderr, "Cannot use UTF-8 code page.\n");
console_utf8 = 0;
return;
}
conState.hConsoleIn = hCI;
conState.consoleMode = consoleMode;
conState.inCodePage = GetConsoleCP();
conState.outCodePage = GetConsoleOutputCP();
SetConsoleCP(CP_UTF8);
SetConsoleOutputCP(CP_UTF8);
consoleMode |= ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT;
SetConsoleMode(conState.hConsoleIn, consoleMode);
conState.infsMode = _setmode(_fileno(stdin), _O_U16TEXT);
console_utf8 = 1;
}else{
console_utf8 = 0;
}
}
/*
** Undo the effects of console_prepare(), if any.
*/
static void SQLITE_CDECL console_restore(void){
if( console_utf8 && conState.inCodePage!=0
&& conState.hConsoleIn!=INVALID_HANDLE_VALUE ){
_setmode(_fileno(stdin), conState.infsMode);
SetConsoleCP(conState.inCodePage);
SetConsoleOutputCP(conState.outCodePage);
SetConsoleMode(conState.hConsoleIn, conState.consoleMode);
/* Avoid multiple calls. */
conState.hConsoleIn = INVALID_HANDLE_VALUE;
conState.consoleMode = 0;
console_utf8 = 0;
}
}
/*
** Collect input like fgets(...) with special provisions for input
** from the Windows console to get around its strange coding issues.
** Defers to plain fgets() when input is not interactive or when the
** startup option, -utf8, has not been provided or taken effect.
*/
static char* utf8_fgets(char *buf, int ncmax, FILE *fin){
if( fin==0 ) fin = stdin;
if( fin==stdin && stdin_is_interactive && console_utf8 ){
# define SQLITE_IALIM 150
wchar_t wbuf[SQLITE_IALIM];
int lend = 0;
int noc = 0;
if( ncmax==0 || conState.stdinEof ) return 0;
buf[0] = 0;
while( noc<ncmax-7-1 && !lend ){
/* There is room for at least 2 more characters and a 0-terminator. */
int na = (ncmax > SQLITE_IALIM*4+1 + noc)
? SQLITE_IALIM : (ncmax-1 - noc)/4;
# undef SQLITE_IALIM
DWORD nbr = 0;
BOOL bRC = ReadConsoleW(conState.hConsoleIn, wbuf, na, &nbr, 0);
if( !bRC || (noc==0 && nbr==0) ) return 0;
if( nbr > 0 ){
int nmb = WideCharToMultiByte(CP_UTF8,WC_COMPOSITECHECK|WC_DEFAULTCHAR,
wbuf,nbr,0,0,0,0);
if( nmb !=0 && noc+nmb <= ncmax ){
int iseg = noc;
nmb = WideCharToMultiByte(CP_UTF8,WC_COMPOSITECHECK|WC_DEFAULTCHAR,
wbuf,nbr,buf+noc,nmb,0,0);
noc += nmb;
/* Fixup line-ends as coded by Windows for CR (or "Enter".)*/
if( noc > 0 ){
if( buf[noc-1]=='\n' ){
lend = 1;
if( noc > 1 && buf[noc-2]=='\r' ){
buf[noc-2] = '\n';
--noc;
}
}
}
/* Check for ^Z (anywhere in line) too. */
while( iseg < noc ){
if( buf[iseg]==0x1a ){
conState.stdinEof = 1;
noc = iseg; /* Chop ^Z and anything following. */
break;
}
++iseg;
}
}else break; /* Drop apparent garbage in. (Could assert.) */
}else break;
}
/* If got nothing, (after ^Z chop), must be at end-of-file. */
if( noc == 0 ) return 0;
buf[noc] = 0;
return buf;
}else{
return fgets(buf, ncmax, fin);
}
}
# define fgets(b,n,f) utf8_fgets(b,n,f)
#endif /* SHELL_WIN_UTF8_OPT */
/*
** Render output like fprintf(). Except, if the output is going to the
** console and if this is running on a Windows machine, and if the -utf8
** option is unavailable or (available and inactive), translate the
** output from UTF-8 into MBCS for output through 8-bit stdout stream.
** (With -utf8 active, no translation is needed and must not be done.)
*/
#if defined(_WIN32) || defined(WIN32)
void utf8_printf(FILE *out, const char *zFormat, ...){
va_list ap;
va_start(ap, zFormat);
if( stdout_is_console && (out==stdout || out==stderr) && !console_utf8 ){
char *z1 = sqlite3_vmprintf(zFormat, ap);
char *z2 = sqlite3_win32_utf8_to_mbcs_v2(z1, 0);
sqlite3_free(z1);
fputs(z2, out);
sqlite3_free(z2);
}else{
vfprintf(out, zFormat, ap);
}
va_end(ap);
}
#elif !defined(utf8_printf)
# define utf8_printf fprintf
#endif
/*
** Render output like fprintf(). This should not be used on anything that
** includes string formatting (e.g. "%s").
*/
#if !defined(raw_printf)
# define raw_printf fprintf
#endif
/* Indicate out-of-memory and exit. */
static void shell_out_of_memory(void){
raw_printf(stderr,"Error: out of memory\n");
exit(1);
}
/* Check a pointer to see if it is NULL. If it is NULL, exit with an
** out-of-memory error.
*/
static void shell_check_oom(const void *p){
if( p==0 ) shell_out_of_memory();
}
/*
** Write I/O traces to the following stream.
*/
#ifdef SQLITE_ENABLE_IOTRACE
static FILE *iotrace = 0;
#endif
/*
** This routine works like printf in that its first argument is a
** format string and subsequent arguments are values to be substituted
** in place of % fields. The result of formatting this string
** is written to iotrace.
*/
#ifdef SQLITE_ENABLE_IOTRACE
static void SQLITE_CDECL iotracePrintf(const char *zFormat, ...){
va_list ap;
char *z;
if( iotrace==0 ) return;
va_start(ap, zFormat);
z = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
utf8_printf(iotrace, "%s", z);
sqlite3_free(z);
}
#endif
/*
** Output string zUtf to stream pOut as w characters. If w is negative,
** then right-justify the text. W is the width in UTF-8 characters, not
** in bytes. This is different from the %*.*s specification in printf
** since with %*.*s the width is measured in bytes, not characters.
*/
static void utf8_width_print(FILE *pOut, int w, const char *zUtf){
int i;
int n;
int aw = w<0 ? -w : w;
if( zUtf==0 ) zUtf = "";
for(i=n=0; zUtf[i]; i++){
if( (zUtf[i]&0xc0)!=0x80 ){
n++;
if( n==aw ){
do{ i++; }while( (zUtf[i]&0xc0)==0x80 );
break;
}
}
}
if( n>=aw ){
utf8_printf(pOut, "%.*s", i, zUtf);
}else if( w<0 ){
utf8_printf(pOut, "%*s%s", aw-n, "", zUtf);
}else{
utf8_printf(pOut, "%s%*s", zUtf, aw-n, "");
}
}
/*
** Determines if a string is a number of not.
*/
static int isNumber(const char *z, int *realnum){
if( *z=='-' || *z=='+' ) z++;
if( !IsDigit(*z) ){
return 0;
}
z++;
if( realnum ) *realnum = 0;
while( IsDigit(*z) ){ z++; }
if( *z=='.' ){
z++;
if( !IsDigit(*z) ) return 0;
while( IsDigit(*z) ){ z++; }
if( realnum ) *realnum = 1;
}
if( *z=='e' || *z=='E' ){
z++;
if( *z=='+' || *z=='-' ) z++;
if( !IsDigit(*z) ) return 0;
while( IsDigit(*z) ){ z++; }
if( realnum ) *realnum = 1;
}
return *z==0;
}
/*
** Compute a string length that is limited to what can be stored in
** lower 30 bits of a 32-bit signed integer.
*/
static int strlen30(const char *z){
const char *z2 = z;
while( *z2 ){ z2++; }
return 0x3fffffff & (int)(z2 - z);
}
/*
** Return the length of a string in characters. Multibyte UTF8 characters
** count as a single character.
*/
static int strlenChar(const char *z){
int n = 0;
while( *z ){
if( (0xc0&*(z++))!=0x80 ) n++;
}
return n;
}
/*
** Return open FILE * if zFile exists, can be opened for read
** and is an ordinary file or a character stream source.
** Otherwise return 0.
*/
static FILE * openChrSource(const char *zFile){
#ifdef _WIN32
struct _stat x = {0};
# define STAT_CHR_SRC(mode) ((mode & (_S_IFCHR|_S_IFIFO|_S_IFREG))!=0)
/* On Windows, open first, then check the stream nature. This order
** is necessary because _stat() and sibs, when checking a named pipe,
** effectively break the pipe as its supplier sees it. */
FILE *rv = fopen(zFile, "rb");
if( rv==0 ) return 0;
if( _fstat(_fileno(rv), &x) != 0
|| !STAT_CHR_SRC(x.st_mode)){
fclose(rv);
rv = 0;
}
return rv;
#else
struct stat x = {0};
int rc = stat(zFile, &x);
# define STAT_CHR_SRC(mode) (S_ISREG(mode)||S_ISFIFO(mode)||S_ISCHR(mode))
if( rc!=0 ) return 0;
if( STAT_CHR_SRC(x.st_mode) ){
return fopen(zFile, "rb");
}else{
return 0;
}
#endif
#undef STAT_CHR_SRC
}
/*
** This routine reads a line of text from FILE in, stores
** the text in memory obtained from malloc() and returns a pointer
** to the text. NULL is returned at end of file, or if malloc()
** fails.
**
** If zLine is not NULL then it is a malloced buffer returned from
** a previous call to this routine that may be reused.
*/
static char *local_getline(char *zLine, FILE *in){
int nLine = zLine==0 ? 0 : 100;
int n = 0;
while( 1 ){
if( n+100>nLine ){
nLine = nLine*2 + 100;
zLine = realloc(zLine, nLine);
shell_check_oom(zLine);
}
if( fgets(&zLine[n], nLine - n, in)==0 ){
if( n==0 ){
free(zLine);
return 0;
}
zLine[n] = 0;
break;
}
while( zLine[n] ) n++;
if( n>0 && zLine[n-1]=='\n' ){
n--;
if( n>0 && zLine[n-1]=='\r' ) n--;
zLine[n] = 0;
break;
}
}
#if defined(_WIN32) || defined(WIN32)
/* For interactive input on Windows systems, without -utf8,
** translate the multi-byte characterset characters into UTF-8.
** This is the translation that predates the -utf8 option. */
if( stdin_is_interactive && in==stdin && !console_utf8 ){
char *zTrans = sqlite3_win32_mbcs_to_utf8_v2(zLine, 0);
if( zTrans ){
i64 nTrans = strlen(zTrans)+1;
if( nTrans>nLine ){
zLine = realloc(zLine, nTrans);
shell_check_oom(zLine);
}
memcpy(zLine, zTrans, nTrans);
sqlite3_free(zTrans);
}
}
#endif /* defined(_WIN32) || defined(WIN32) */
return zLine;
}
/*
** Retrieve a single line of input text.
**
** If in==0 then read from standard input and prompt before each line.
** If isContinuation is true, then a continuation prompt is appropriate.
** If isContinuation is zero, then the main prompt should be used.
**
** If zPrior is not NULL then it is a buffer from a prior call to this
** routine that can be reused.
**
** The result is stored in space obtained from malloc() and must either
** be freed by the caller or else passed back into this routine via the
** zPrior argument for reuse.
*/
#ifndef SQLITE_SHELL_FIDDLE
static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
char *zPrompt;
char *zResult;
if( in!=0 ){
zResult = local_getline(zPrior, in);
}else{
zPrompt = isContinuation ? CONTINUATION_PROMPT : mainPrompt;
#if SHELL_USE_LOCAL_GETLINE
printf("%s", zPrompt);
fflush(stdout);
do{
zResult = local_getline(zPrior, stdin);
zPrior = 0;
/* ^C trap creates a false EOF, so let "interrupt" thread catch up. */
if( zResult==0 ) sqlite3_sleep(50);
}while( zResult==0 && seenInterrupt>0 );
#else
free(zPrior);
zResult = shell_readline(zPrompt);
while( zResult==0 ){
/* ^C trap creates a false EOF, so let "interrupt" thread catch up. */
sqlite3_sleep(50);
if( seenInterrupt==0 ) break;
zResult = shell_readline("");
}
if( zResult && *zResult ) shell_add_history(zResult);
#endif
}
return zResult;
}
#endif /* !SQLITE_SHELL_FIDDLE */
/*
** Return the value of a hexadecimal digit. Return -1 if the input
** is not a hex digit.
*/
static int hexDigitValue(char c){
if( c>='0' && c<='9' ) return c - '0';
if( c>='a' && c<='f' ) return c - 'a' + 10;
if( c>='A' && c<='F' ) return c - 'A' + 10;
return -1;
}
/*
** Interpret zArg as an integer value, possibly with suffixes.
*/
static sqlite3_int64 integerValue(const char *zArg){
sqlite3_int64 v = 0;
static const struct { char *zSuffix; int iMult; } aMult[] = {
{ "KiB", 1024 },
{ "MiB", 1024*1024 },
{ "GiB", 1024*1024*1024 },
{ "KB", 1000 },
{ "MB", 1000000 },
{ "GB", 1000000000 },
{ "K", 1000 },
{ "M", 1000000 },
{ "G", 1000000000 },
};
int i;
int isNeg = 0;
if( zArg[0]=='-' ){
isNeg = 1;
zArg++;
}else if( zArg[0]=='+' ){
zArg++;
}
if( zArg[0]=='0' && zArg[1]=='x' ){
int x;
zArg += 2;
while( (x = hexDigitValue(zArg[0]))>=0 ){
v = (v<<4) + x;
zArg++;
}
}else{
while( IsDigit(zArg[0]) ){
v = v*10 + zArg[0] - '0';
zArg++;
}
}
for(i=0; i<ArraySize(aMult); i++){
if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
v *= aMult[i].iMult;
break;
}
}
return isNeg? -v : v;
}
/*
** A variable length string to which one can append text.
*/
typedef struct ShellText ShellText;
struct ShellText {
char *z;
int n;
int nAlloc;
};
/*
** Initialize and destroy a ShellText object
*/
static void initText(ShellText *p){
memset(p, 0, sizeof(*p));
}
static void freeText(ShellText *p){
free(p->z);
initText(p);
}
/* zIn is either a pointer to a NULL-terminated string in memory obtained
** from malloc(), or a NULL pointer. The string pointed to by zAppend is
** added to zIn, and the result returned in memory obtained from malloc().
** zIn, if it was not NULL, is freed.
**
** If the third argument, quote, is not '\0', then it is used as a
** quote character for zAppend.
*/
static void appendText(ShellText *p, const char *zAppend, char quote){
i64 len;
i64 i;
i64 nAppend = strlen30(zAppend);
len = nAppend+p->n+1;
if( quote ){
len += 2;
for(i=0; i<nAppend; i++){
if( zAppend[i]==quote ) len++;
}
}
if( p->z==0 || p->n+len>=p->nAlloc ){
p->nAlloc = p->nAlloc*2 + len + 20;
p->z = realloc(p->z, p->nAlloc);
shell_check_oom(p->z);
}
if( quote ){
char *zCsr = p->z+p->n;
*zCsr++ = quote;
for(i=0; i<nAppend; i++){
*zCsr++ = zAppend[i];
if( zAppend[i]==quote ) *zCsr++ = quote;
}
*zCsr++ = quote;
p->n = (int)(zCsr - p->z);
*zCsr = '\0';
}else{
memcpy(p->z+p->n, zAppend, nAppend);
p->n += nAppend;
p->z[p->n] = '\0';
}
}
/*
** Attempt to determine if identifier zName needs to be quoted, either
** because it contains non-alphanumeric characters, or because it is an
** SQLite keyword. Be conservative in this estimate: When in doubt assume
** that quoting is required.
**
** Return '"' if quoting is required. Return 0 if no quoting is required.
*/
static char quoteChar(const char *zName){
int i;
if( zName==0 ) return '"';
if( !isalpha((unsigned char)zName[0]) && zName[0]!='_' ) return '"';
for(i=0; zName[i]; i++){
if( !isalnum((unsigned char)zName[i]) && zName[i]!='_' ) return '"';
}
return sqlite3_keyword_check(zName, i) ? '"' : 0;
}
/*
** Construct a fake object name and column list to describe the structure
** of the view, virtual table, or table valued function zSchema.zName.
*/
static char *shellFakeSchema(
sqlite3 *db, /* The database connection containing the vtab */
const char *zSchema, /* Schema of the database holding the vtab */
const char *zName /* The name of the virtual table */
){
sqlite3_stmt *pStmt = 0;
char *zSql;
ShellText s;
char cQuote;
char *zDiv = "(";
int nRow = 0;
zSql = sqlite3_mprintf("PRAGMA \"%w\".table_info=%Q;",
zSchema ? zSchema : "main", zName);
shell_check_oom(zSql);
sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
initText(&s);
if( zSchema ){
cQuote = quoteChar(zSchema);
if( cQuote && sqlite3_stricmp(zSchema,"temp")==0 ) cQuote = 0;
appendText(&s, zSchema, cQuote);
appendText(&s, ".", 0);
}
cQuote = quoteChar(zName);
appendText(&s, zName, cQuote);
while( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *zCol = (const char*)sqlite3_column_text(pStmt, 1);
nRow++;
appendText(&s, zDiv, 0);
zDiv = ",";
if( zCol==0 ) zCol = "";
cQuote = quoteChar(zCol);
appendText(&s, zCol, cQuote);
}
appendText(&s, ")", 0);
sqlite3_finalize(pStmt);
if( nRow==0 ){
freeText(&s);
s.z = 0;
}
return s.z;
}
/*
** SQL function: strtod(X)
**
** Use the C-library strtod() function to convert string X into a double.
** Used for comparing the accuracy of SQLite's internal text-to-float conversion
** routines against the C-library.
*/
static void shellStrtod(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
char *z = (char*)sqlite3_value_text(apVal[0]);
UNUSED_PARAMETER(nVal);
if( z==0 ) return;
sqlite3_result_double(pCtx, strtod(z,0));
}
/*
** SQL function: dtostr(X)
**
** Use the C-library printf() function to convert real value X into a string.
** Used for comparing the accuracy of SQLite's internal float-to-text conversion
** routines against the C-library.
*/
static void shellDtostr(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
double r = sqlite3_value_double(apVal[0]);
int n = nVal>=2 ? sqlite3_value_int(apVal[1]) : 26;
char z[400];
if( n<1 ) n = 1;
if( n>350 ) n = 350;
sprintf(z, "%#+.*e", n, r);
sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
}
/*
** SQL function: shell_module_schema(X)
**
** Return a fake schema for the table-valued function or eponymous virtual
** table X.
*/
static void shellModuleSchema(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
const char *zName;
char *zFake;
UNUSED_PARAMETER(nVal);
zName = (const char*)sqlite3_value_text(apVal[0]);
zFake = zName? shellFakeSchema(sqlite3_context_db_handle(pCtx), 0, zName) : 0;
if( zFake ){
sqlite3_result_text(pCtx, sqlite3_mprintf("/* %s */", zFake),
-1, sqlite3_free);
free(zFake);
}
}
/*
** SQL function: shell_add_schema(S,X)
**
** Add the schema name X to the CREATE statement in S and return the result.
** Examples:
**
** CREATE TABLE t1(x) -> CREATE TABLE xyz.t1(x);
**
** Also works on
**
** CREATE INDEX
** CREATE UNIQUE INDEX
** CREATE VIEW
** CREATE TRIGGER
** CREATE VIRTUAL TABLE
**
** This UDF is used by the .schema command to insert the schema name of
** attached databases into the middle of the sqlite_schema.sql field.
*/
static void shellAddSchemaName(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
static const char *aPrefix[] = {
"TABLE",
"INDEX",
"UNIQUE INDEX",
"VIEW",
"TRIGGER",
"VIRTUAL TABLE"
};
int i = 0;
const char *zIn = (const char*)sqlite3_value_text(apVal[0]);
const char *zSchema = (const char*)sqlite3_value_text(apVal[1]);
const char *zName = (const char*)sqlite3_value_text(apVal[2]);
sqlite3 *db = sqlite3_context_db_handle(pCtx);
UNUSED_PARAMETER(nVal);
if( zIn!=0 && cli_strncmp(zIn, "CREATE ", 7)==0 ){
for(i=0; i<ArraySize(aPrefix); i++){
int n = strlen30(aPrefix[i]);
if( cli_strncmp(zIn+7, aPrefix[i], n)==0 && zIn[n+7]==' ' ){
char *z = 0;
char *zFake = 0;
if( zSchema ){
char cQuote = quoteChar(zSchema);
if( cQuote && sqlite3_stricmp(zSchema,"temp")!=0 ){
z = sqlite3_mprintf("%.*s \"%w\".%s", n+7, zIn, zSchema, zIn+n+8);
}else{
z = sqlite3_mprintf("%.*s %s.%s", n+7, zIn, zSchema, zIn+n+8);
}
}
if( zName
&& aPrefix[i][0]=='V'
&& (zFake = shellFakeSchema(db, zSchema, zName))!=0
){
if( z==0 ){
z = sqlite3_mprintf("%s\n/* %s */", zIn, zFake);
}else{
z = sqlite3_mprintf("%z\n/* %s */", z, zFake);
}
free(zFake);
}
if( z ){
sqlite3_result_text(pCtx, z, -1, sqlite3_free);
return;
}
}
}
}
sqlite3_result_value(pCtx, apVal[0]);
}
/*
** The source code for several run-time loadable extensions is inserted
** below by the ../tool/mkshellc.tcl script. Before processing that included
** code, we need to override some macros to make the included program code
** work here in the middle of this regular program.
*/
#define SQLITE_EXTENSION_INIT1
#define SQLITE_EXTENSION_INIT2(X) (void)(X)
#if defined(_WIN32) && defined(_MSC_VER)
INCLUDE test_windirent.h
INCLUDE test_windirent.c
#define dirent DIRENT
#endif
INCLUDE ../ext/misc/memtrace.c
INCLUDE ../ext/misc/pcachetrace.c
INCLUDE ../ext/misc/shathree.c
INCLUDE ../ext/misc/uint.c
INCLUDE ../ext/misc/decimal.c
#undef sqlite3_base_init
#define sqlite3_base_init sqlite3_base64_init
INCLUDE ../ext/misc/base64.c
#undef sqlite3_base_init
#define sqlite3_base_init sqlite3_base85_init
#define OMIT_BASE85_CHECKER
INCLUDE ../ext/misc/base85.c
INCLUDE ../ext/misc/ieee754.c
INCLUDE ../ext/misc/series.c
INCLUDE ../ext/misc/regexp.c
#ifndef SQLITE_SHELL_FIDDLE
INCLUDE ../ext/misc/fileio.c
INCLUDE ../ext/misc/completion.c
INCLUDE ../ext/misc/appendvfs.c
#endif
#ifdef SQLITE_HAVE_ZLIB
INCLUDE ../ext/misc/zipfile.c
INCLUDE ../ext/misc/sqlar.c
#endif
INCLUDE ../ext/expert/sqlite3expert.h
INCLUDE ../ext/expert/sqlite3expert.c
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_ENABLE_DBPAGE_VTAB)
#define SQLITE_SHELL_HAVE_RECOVER 1
#else
#define SQLITE_SHELL_HAVE_RECOVER 0
#endif
#if SQLITE_SHELL_HAVE_RECOVER
INCLUDE ../ext/recover/sqlite3recover.h
# ifndef SQLITE_HAVE_SQLITE3R
INCLUDE ../ext/recover/dbdata.c
INCLUDE ../ext/recover/sqlite3recover.c
# endif /* SQLITE_HAVE_SQLITE3R */
#endif
#ifdef SQLITE_SHELL_EXTSRC
# include SHELL_STRINGIFY(SQLITE_SHELL_EXTSRC)
#endif
#if defined(SQLITE_ENABLE_SESSION)
/*
** State information for a single open session
*/
typedef struct OpenSession OpenSession;
struct OpenSession {
char *zName; /* Symbolic name for this session */
int nFilter; /* Number of xFilter rejection GLOB patterns */
char **azFilter; /* Array of xFilter rejection GLOB patterns */
sqlite3_session *p; /* The open session */
};
#endif
typedef struct ExpertInfo ExpertInfo;
struct ExpertInfo {
sqlite3expert *pExpert;
int bVerbose;
};
/* A single line in the EQP output */
typedef struct EQPGraphRow EQPGraphRow;
struct EQPGraphRow {
int iEqpId; /* ID for this row */
int iParentId; /* ID of the parent row */
EQPGraphRow *pNext; /* Next row in sequence */
char zText[1]; /* Text to display for this row */
};
/* All EQP output is collected into an instance of the following */
typedef struct EQPGraph EQPGraph;
struct EQPGraph {
EQPGraphRow *pRow; /* Linked list of all rows of the EQP output */
EQPGraphRow *pLast; /* Last element of the pRow list */
char zPrefix[100]; /* Graph prefix */
};
/* Parameters affecting columnar mode result display (defaulting together) */
typedef struct ColModeOpts {
int iWrap; /* In columnar modes, wrap lines reaching this limit */
u8 bQuote; /* Quote results for .mode box and table */
u8 bWordWrap; /* In columnar modes, wrap at word boundaries */
} ColModeOpts;
#define ColModeOpts_default { 60, 0, 0 }
#define ColModeOpts_default_qbox { 60, 1, 0 }
/*
** State information about the database connection is contained in an
** instance of the following structure.
*/
typedef struct ShellState ShellState;
struct ShellState {
sqlite3 *db; /* The database */
u8 autoExplain; /* Automatically turn on .explain mode */
u8 autoEQP; /* Run EXPLAIN QUERY PLAN prior to each SQL stmt */
u8 autoEQPtest; /* autoEQP is in test mode */
u8 autoEQPtrace; /* autoEQP is in trace mode */
u8 scanstatsOn; /* True to display scan stats before each finalize */
u8 openMode; /* SHELL_OPEN_NORMAL, _APPENDVFS, or _ZIPFILE */
u8 doXdgOpen; /* Invoke start/open/xdg-open in output_reset() */
u8 nEqpLevel; /* Depth of the EQP output graph */
u8 eTraceType; /* SHELL_TRACE_* value for type of trace */
u8 bSafeMode; /* True to prohibit unsafe operations */
u8 bSafeModePersist; /* The long-term value of bSafeMode */
ColModeOpts cmOpts; /* Option values affecting columnar mode output */
unsigned statsOn; /* True to display memory stats before each finalize */
unsigned mEqpLines; /* Mask of vertical lines in the EQP output graph */
int inputNesting; /* Track nesting level of .read and other redirects */
int outCount; /* Revert to stdout when reaching zero */
int cnt; /* Number of records displayed so far */
int lineno; /* Line number of last line read from in */
int openFlags; /* Additional flags to open. (SQLITE_OPEN_NOFOLLOW) */
FILE *in; /* Read commands from this stream */
FILE *out; /* Write results here */
FILE *traceOut; /* Output for sqlite3_trace() */
int nErr; /* Number of errors seen */
int mode; /* An output mode setting */
int modePrior; /* Saved mode */
int cMode; /* temporary output mode for the current query */
int normalMode; /* Output mode before ".explain on" */
int writableSchema; /* True if PRAGMA writable_schema=ON */
int showHeader; /* True to show column names in List or Column mode */
int nCheck; /* Number of ".check" commands run */
unsigned nProgress; /* Number of progress callbacks encountered */
unsigned mxProgress; /* Maximum progress callbacks before failing */
unsigned flgProgress; /* Flags for the progress callback */
unsigned shellFlgs; /* Various flags */
unsigned priorShFlgs; /* Saved copy of flags */
sqlite3_int64 szMax; /* --maxsize argument to .open */
char *zDestTable; /* Name of destination table when MODE_Insert */
char *zTempFile; /* Temporary file that might need deleting */
char zTestcase[30]; /* Name of current test case */
char colSeparator[20]; /* Column separator character for several modes */
char rowSeparator[20]; /* Row separator character for MODE_Ascii */
char colSepPrior[20]; /* Saved column separator */
char rowSepPrior[20]; /* Saved row separator */
int *colWidth; /* Requested width of each column in columnar modes */
int *actualWidth; /* Actual width of each column */
int nWidth; /* Number of slots in colWidth[] and actualWidth[] */
char nullValue[20]; /* The text to print when a NULL comes back from
** the database */
char outfile[FILENAME_MAX]; /* Filename for *out */
sqlite3_stmt *pStmt; /* Current statement if any. */
FILE *pLog; /* Write log output here */
struct AuxDb { /* Storage space for auxiliary database connections */
sqlite3 *db; /* Connection pointer */
const char *zDbFilename; /* Filename used to open the connection */
char *zFreeOnClose; /* Free this memory allocation on close */
#if defined(SQLITE_ENABLE_SESSION)
int nSession; /* Number of active sessions */
OpenSession aSession[4]; /* Array of sessions. [0] is in focus. */
#endif
} aAuxDb[5], /* Array of all database connections */
*pAuxDb; /* Currently active database connection */
int *aiIndent; /* Array of indents used in MODE_Explain */
int nIndent; /* Size of array aiIndent[] */
int iIndent; /* Index of current op in aiIndent[] */
char *zNonce; /* Nonce for temporary safe-mode escapes */
EQPGraph sGraph; /* Information for the graphical EXPLAIN QUERY PLAN */
ExpertInfo expert; /* Valid if previous command was ".expert OPT..." */
#ifdef SQLITE_SHELL_FIDDLE
struct {
const char * zInput; /* Input string from wasm/JS proxy */
const char * zPos; /* Cursor pos into zInput */
const char * zDefaultDbName; /* Default name for db file */
} wasm;
#endif
};
#ifdef SQLITE_SHELL_FIDDLE
static ShellState shellState;
#endif
/* Allowed values for ShellState.autoEQP
*/
#define AUTOEQP_off 0 /* Automatic EXPLAIN QUERY PLAN is off */
#define AUTOEQP_on 1 /* Automatic EQP is on */
#define AUTOEQP_trigger 2 /* On and also show plans for triggers */
#define AUTOEQP_full 3 /* Show full EXPLAIN */
/* Allowed values for ShellState.openMode
*/
#define SHELL_OPEN_UNSPEC 0 /* No open-mode specified */
#define SHELL_OPEN_NORMAL 1 /* Normal database file */
#define SHELL_OPEN_APPENDVFS 2 /* Use appendvfs */
#define SHELL_OPEN_ZIPFILE 3 /* Use the zipfile virtual table */
#define SHELL_OPEN_READONLY 4 /* Open a normal database read-only */
#define SHELL_OPEN_DESERIALIZE 5 /* Open using sqlite3_deserialize() */
#define SHELL_OPEN_HEXDB 6 /* Use "dbtotxt" output as data source */
/* Allowed values for ShellState.eTraceType
*/
#define SHELL_TRACE_PLAIN 0 /* Show input SQL text */
#define SHELL_TRACE_EXPANDED 1 /* Show expanded SQL text */
#define SHELL_TRACE_NORMALIZED 2 /* Show normalized SQL text */
/* Bits in the ShellState.flgProgress variable */
#define SHELL_PROGRESS_QUIET 0x01 /* Omit announcing every progress callback */
#define SHELL_PROGRESS_RESET 0x02 /* Reset the count when the progress
** callback limit is reached, and for each
** top-level SQL statement */
#define SHELL_PROGRESS_ONCE 0x04 /* Cancel the --limit after firing once */
/*
** These are the allowed shellFlgs values
*/
#define SHFLG_Pagecache 0x00000001 /* The --pagecache option is used */
#define SHFLG_Lookaside 0x00000002 /* Lookaside memory is used */
#define SHFLG_Backslash 0x00000004 /* The --backslash option is used */
#define SHFLG_PreserveRowid 0x00000008 /* .dump preserves rowid values */
#define SHFLG_Newlines 0x00000010 /* .dump --newline flag */
#define SHFLG_CountChanges 0x00000020 /* .changes setting */
#define SHFLG_Echo 0x00000040 /* .echo on/off, or --echo setting */
#define SHFLG_HeaderSet 0x00000080 /* showHeader has been specified */
#define SHFLG_DumpDataOnly 0x00000100 /* .dump show data only */
#define SHFLG_DumpNoSys 0x00000200 /* .dump omits system tables */
#define SHFLG_TestingMode 0x00000400 /* allow unsafe testing features */
/*
** Macros for testing and setting shellFlgs
*/
#define ShellHasFlag(P,X) (((P)->shellFlgs & (X))!=0)
#define ShellSetFlag(P,X) ((P)->shellFlgs|=(X))
#define ShellClearFlag(P,X) ((P)->shellFlgs&=(~(X)))
/*
** These are the allowed modes.
*/
#define MODE_Line 0 /* One column per line. Blank line between records */
#define MODE_Column 1 /* One record per line in neat columns */
#define MODE_List 2 /* One record per line with a separator */
#define MODE_Semi 3 /* Same as MODE_List but append ";" to each line */
#define MODE_Html 4 /* Generate an XHTML table */
#define MODE_Insert 5 /* Generate SQL "insert" statements */
#define MODE_Quote 6 /* Quote values as for SQL */
#define MODE_Tcl 7 /* Generate ANSI-C or TCL quoted elements */
#define MODE_Csv 8 /* Quote strings, numbers are plain */
#define MODE_Explain 9 /* Like MODE_Column, but do not truncate data */
#define MODE_Ascii 10 /* Use ASCII unit and record separators (0x1F/0x1E) */
#define MODE_Pretty 11 /* Pretty-print schemas */
#define MODE_EQP 12 /* Converts EXPLAIN QUERY PLAN output into a graph */
#define MODE_Json 13 /* Output JSON */
#define MODE_Markdown 14 /* Markdown formatting */
#define MODE_Table 15 /* MySQL-style table formatting */
#define MODE_Box 16 /* Unicode box-drawing characters */
#define MODE_Count 17 /* Output only a count of the rows of output */
#define MODE_Off 18 /* No query output shown */
#define MODE_ScanExp 19 /* Like MODE_Explain, but for ".scanstats vm" */
static const char *modeDescr[] = {
"line",
"column",
"list",
"semi",
"html",
"insert",
"quote",
"tcl",
"csv",
"explain",
"ascii",
"prettyprint",
"eqp",
"json",
"markdown",
"table",
"box",
"count",
"off"
};
/*
** These are the column/row/line separators used by the various
** import/export modes.
*/
#define SEP_Column "|"
#define SEP_Row "\n"
#define SEP_Tab "\t"
#define SEP_Space " "
#define SEP_Comma ","
#define SEP_CrLf "\r\n"
#define SEP_Unit "\x1F"
#define SEP_Record "\x1E"
/*
** Limit input nesting via .read or any other input redirect.
** It's not too expensive, so a generous allowance can be made.
*/
#define MAX_INPUT_NESTING 25
/*
** A callback for the sqlite3_log() interface.
*/
static void shellLog(void *pArg, int iErrCode, const char *zMsg){
ShellState *p = (ShellState*)pArg;
if( p->pLog==0 ) return;
utf8_printf(p->pLog, "(%d) %s\n", iErrCode, zMsg);
fflush(p->pLog);
}
/*
** SQL function: shell_putsnl(X)
**
** Write the text X to the screen (or whatever output is being directed)
** adding a newline at the end, and then return X.
*/
static void shellPutsFunc(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
ShellState *p = (ShellState*)sqlite3_user_data(pCtx);
(void)nVal;
utf8_printf(p->out, "%s\n", sqlite3_value_text(apVal[0]));
sqlite3_result_value(pCtx, apVal[0]);
}
/*
** If in safe mode, print an error message described by the arguments
** and exit immediately.
*/
static void failIfSafeMode(
ShellState *p,
const char *zErrMsg,
...
){
if( p->bSafeMode ){
va_list ap;
char *zMsg;
va_start(ap, zErrMsg);
zMsg = sqlite3_vmprintf(zErrMsg, ap);
va_end(ap);
raw_printf(stderr, "line %d: ", p->lineno);
utf8_printf(stderr, "%s\n", zMsg);
exit(1);
}
}
/*
** SQL function: edit(VALUE)
** edit(VALUE,EDITOR)
**
** These steps:
**
** (1) Write VALUE into a temporary file.
** (2) Run program EDITOR on that temporary file.
** (3) Read the temporary file back and return its content as the result.
** (4) Delete the temporary file
**
** If the EDITOR argument is omitted, use the value in the VISUAL
** environment variable. If still there is no EDITOR, through an error.
**
** Also throw an error if the EDITOR program returns a non-zero exit code.
*/
#ifndef SQLITE_NOHAVE_SYSTEM
static void editFunc(
sqlite3_context *context,
int argc,
sqlite3_value **argv
){
const char *zEditor;
char *zTempFile = 0;
sqlite3 *db;
char *zCmd = 0;
int bBin;
int rc;
int hasCRNL = 0;
FILE *f = 0;
sqlite3_int64 sz;
sqlite3_int64 x;
unsigned char *p = 0;
if( argc==2 ){
zEditor = (const char*)sqlite3_value_text(argv[1]);
}else{
zEditor = getenv("VISUAL");
}
if( zEditor==0 ){
sqlite3_result_error(context, "no editor for edit()", -1);
return;
}
if( sqlite3_value_type(argv[0])==SQLITE_NULL ){
sqlite3_result_error(context, "NULL input to edit()", -1);
return;
}
db = sqlite3_context_db_handle(context);
zTempFile = 0;
sqlite3_file_control(db, 0, SQLITE_FCNTL_TEMPFILENAME, &zTempFile);
if( zTempFile==0 ){
sqlite3_uint64 r = 0;
sqlite3_randomness(sizeof(r), &r);
zTempFile = sqlite3_mprintf("temp%llx", r);
if( zTempFile==0 ){
sqlite3_result_error_nomem(context);
return;
}
}
bBin = sqlite3_value_type(argv[0])==SQLITE_BLOB;
/* When writing the file to be edited, do \n to \r\n conversions on systems
** that want \r\n line endings */
f = fopen(zTempFile, bBin ? "wb" : "w");
if( f==0 ){
sqlite3_result_error(context, "edit() cannot open temp file", -1);
goto edit_func_end;
}
sz = sqlite3_value_bytes(argv[0]);
if( bBin ){
x = fwrite(sqlite3_value_blob(argv[0]), 1, (size_t)sz, f);
}else{
const char *z = (const char*)sqlite3_value_text(argv[0]);
/* Remember whether or not the value originally contained \r\n */
if( z && strstr(z,"\r\n")!=0 ) hasCRNL = 1;
x = fwrite(sqlite3_value_text(argv[0]), 1, (size_t)sz, f);
}
fclose(f);
f = 0;
if( x!=sz ){
sqlite3_result_error(context, "edit() could not write the whole file", -1);
goto edit_func_end;
}
zCmd = sqlite3_mprintf("%s \"%s\"", zEditor, zTempFile);
if( zCmd==0 ){
sqlite3_result_error_nomem(context);
goto edit_func_end;
}
rc = system(zCmd);
sqlite3_free(zCmd);
if( rc ){
sqlite3_result_error(context, "EDITOR returned non-zero", -1);
goto edit_func_end;
}
f = fopen(zTempFile, "rb");
if( f==0 ){
sqlite3_result_error(context,
"edit() cannot reopen temp file after edit", -1);
goto edit_func_end;
}
fseek(f, 0, SEEK_END);
sz = ftell(f);
rewind(f);
p = sqlite3_malloc64( sz+1 );
if( p==0 ){
sqlite3_result_error_nomem(context);
goto edit_func_end;
}
x = fread(p, 1, (size_t)sz, f);
fclose(f);
f = 0;
if( x!=sz ){
sqlite3_result_error(context, "could not read back the whole file", -1);
goto edit_func_end;
}
if( bBin ){
sqlite3_result_blob64(context, p, sz, sqlite3_free);
}else{
sqlite3_int64 i, j;
if( hasCRNL ){
/* If the original contains \r\n then do no conversions back to \n */
}else{
/* If the file did not originally contain \r\n then convert any new
** \r\n back into \n */
p[sz] = 0;
for(i=j=0; i<sz; i++){
if( p[i]=='\r' && p[i+1]=='\n' ) i++;
p[j++] = p[i];
}
sz = j;
p[sz] = 0;
}
sqlite3_result_text64(context, (const char*)p, sz,
sqlite3_free, SQLITE_UTF8);
}
p = 0;
edit_func_end:
if( f ) fclose(f);
unlink(zTempFile);
sqlite3_free(zTempFile);
sqlite3_free(p);
}
#endif /* SQLITE_NOHAVE_SYSTEM */
/*
** Save or restore the current output mode
*/
static void outputModePush(ShellState *p){
p->modePrior = p->mode;
p->priorShFlgs = p->shellFlgs;
memcpy(p->colSepPrior, p->colSeparator, sizeof(p->colSeparator));
memcpy(p->rowSepPrior, p->rowSeparator, sizeof(p->rowSeparator));
}
static void outputModePop(ShellState *p){
p->mode = p->modePrior;
p->shellFlgs = p->priorShFlgs;
memcpy(p->colSeparator, p->colSepPrior, sizeof(p->colSeparator));
memcpy(p->rowSeparator, p->rowSepPrior, sizeof(p->rowSeparator));
}
/*
** Output the given string as a hex-encoded blob (eg. X'1234' )
*/
static void output_hex_blob(FILE *out, const void *pBlob, int nBlob){
int i;
unsigned char *aBlob = (unsigned char*)pBlob;
char *zStr = sqlite3_malloc(nBlob*2 + 1);
shell_check_oom(zStr);
for(i=0; i<nBlob; i++){
static const char aHex[] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
};
zStr[i*2] = aHex[ (aBlob[i] >> 4) ];
zStr[i*2+1] = aHex[ (aBlob[i] & 0x0F) ];
}
zStr[i*2] = '\0';
raw_printf(out,"X'%s'", zStr);
sqlite3_free(zStr);
}
/*
** Find a string that is not found anywhere in z[]. Return a pointer
** to that string.
**
** Try to use zA and zB first. If both of those are already found in z[]
** then make up some string and store it in the buffer zBuf.
*/
static const char *unused_string(
const char *z, /* Result must not appear anywhere in z */
const char *zA, const char *zB, /* Try these first */
char *zBuf /* Space to store a generated string */
){
unsigned i = 0;
if( strstr(z, zA)==0 ) return zA;
if( strstr(z, zB)==0 ) return zB;
do{
sqlite3_snprintf(20,zBuf,"(%s%u)", zA, i++);
}while( strstr(z,zBuf)!=0 );
return zBuf;
}
/*
** Output the given string as a quoted string using SQL quoting conventions.
**
** See also: output_quoted_escaped_string()
*/
static void output_quoted_string(FILE *out, const char *z){
int i;
char c;
setBinaryMode(out, 1);
if( z==0 ) return;
for(i=0; (c = z[i])!=0 && c!='\''; i++){}
if( c==0 ){
utf8_printf(out,"'%s'",z);
}else{
raw_printf(out, "'");
while( *z ){
for(i=0; (c = z[i])!=0 && c!='\''; i++){}
if( c=='\'' ) i++;
if( i ){
utf8_printf(out, "%.*s", i, z);
z += i;
}
if( c=='\'' ){
raw_printf(out, "'");
continue;
}
if( c==0 ){
break;
}
z++;
}
raw_printf(out, "'");
}
setTextMode(out, 1);
}
/*
** Output the given string as a quoted string using SQL quoting conventions.
** Additionallly , escape the "\n" and "\r" characters so that they do not
** get corrupted by end-of-line translation facilities in some operating
** systems.
**
** This is like output_quoted_string() but with the addition of the \r\n
** escape mechanism.
*/
static void output_quoted_escaped_string(FILE *out, const char *z){
int i;
char c;
setBinaryMode(out, 1);
for(i=0; (c = z[i])!=0 && c!='\'' && c!='\n' && c!='\r'; i++){}
if( c==0 ){
utf8_printf(out,"'%s'",z);
}else{
const char *zNL = 0;
const char *zCR = 0;
int nNL = 0;
int nCR = 0;
char zBuf1[20], zBuf2[20];
for(i=0; z[i]; i++){
if( z[i]=='\n' ) nNL++;
if( z[i]=='\r' ) nCR++;
}
if( nNL ){
raw_printf(out, "replace(");
zNL = unused_string(z, "\\n", "\\012", zBuf1);
}
if( nCR ){
raw_printf(out, "replace(");
zCR = unused_string(z, "\\r", "\\015", zBuf2);
}
raw_printf(out, "'");
while( *z ){
for(i=0; (c = z[i])!=0 && c!='\n' && c!='\r' && c!='\''; i++){}
if( c=='\'' ) i++;
if( i ){
utf8_printf(out, "%.*s", i, z);
z += i;
}
if( c=='\'' ){
raw_printf(out, "'");
continue;
}
if( c==0 ){
break;
}
z++;
if( c=='\n' ){
raw_printf(out, "%s", zNL);
continue;
}
raw_printf(out, "%s", zCR);
}
raw_printf(out, "'");
if( nCR ){
raw_printf(out, ",'%s',char(13))", zCR);
}
if( nNL ){
raw_printf(out, ",'%s',char(10))", zNL);
}
}
setTextMode(out, 1);
}
/*
** Output the given string as a quoted according to C or TCL quoting rules.
*/
static void output_c_string(FILE *out, const char *z){
unsigned int c;
fputc('"', out);
while( (c = *(z++))!=0 ){
if( c=='\\' ){
fputc(c, out);
fputc(c, out);
}else if( c=='"' ){
fputc('\\', out);
fputc('"', out);
}else if( c=='\t' ){
fputc('\\', out);
fputc('t', out);
}else if( c=='\n' ){
fputc('\\', out);
fputc('n', out);
}else if( c=='\r' ){
fputc('\\', out);
fputc('r', out);
}else if( !isprint(c&0xff) ){
raw_printf(out, "\\%03o", c&0xff);
}else{
fputc(c, out);
}
}
fputc('"', out);
}
/*
** Output the given string as a quoted according to JSON quoting rules.
*/
static void output_json_string(FILE *out, const char *z, i64 n){
unsigned int c;
if( z==0 ) z = "";
if( n<0 ) n = strlen(z);
fputc('"', out);
while( n-- ){
c = *(z++);
if( c=='\\' || c=='"' ){
fputc('\\', out);
fputc(c, out);
}else if( c<=0x1f ){
fputc('\\', out);
if( c=='\b' ){
fputc('b', out);
}else if( c=='\f' ){
fputc('f', out);
}else if( c=='\n' ){
fputc('n', out);
}else if( c=='\r' ){
fputc('r', out);
}else if( c=='\t' ){
fputc('t', out);
}else{
raw_printf(out, "u%04x",c);
}
}else{
fputc(c, out);
}
}
fputc('"', out);
}
/*
** Output the given string with characters that are special to
** HTML escaped.
*/
static void output_html_string(FILE *out, const char *z){
int i;
if( z==0 ) z = "";
while( *z ){
for(i=0; z[i]
&& z[i]!='<'
&& z[i]!='&'
&& z[i]!='>'
&& z[i]!='\"'
&& z[i]!='\'';
i++){}
if( i>0 ){
utf8_printf(out,"%.*s",i,z);
}
if( z[i]=='<' ){
raw_printf(out,"&lt;");
}else if( z[i]=='&' ){
raw_printf(out,"&amp;");
}else if( z[i]=='>' ){
raw_printf(out,"&gt;");
}else if( z[i]=='\"' ){
raw_printf(out,"&quot;");
}else if( z[i]=='\'' ){
raw_printf(out,"&#39;");
}else{
break;
}
z += i + 1;
}
}
/*
** If a field contains any character identified by a 1 in the following
** array, then the string must be quoted for CSV.
*/
static const char needCsvQuote[] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
};
/*
** Output a single term of CSV. Actually, p->colSeparator is used for
** the separator, which may or may not be a comma. p->nullValue is
** the null value. Strings are quoted if necessary. The separator
** is only issued if bSep is true.
*/
static void output_csv(ShellState *p, const char *z, int bSep){
FILE *out = p->out;
if( z==0 ){
utf8_printf(out,"%s",p->nullValue);
}else{
unsigned i;
for(i=0; z[i]; i++){
if( needCsvQuote[((unsigned char*)z)[i]] ){
i = 0;
break;
}
}
if( i==0 || strstr(z, p->colSeparator)!=0 ){
char *zQuoted = sqlite3_mprintf("\"%w\"", z);
shell_check_oom(zQuoted);
utf8_printf(out, "%s", zQuoted);
sqlite3_free(zQuoted);
}else{
utf8_printf(out, "%s", z);
}
}
if( bSep ){
utf8_printf(p->out, "%s", p->colSeparator);
}
}
/*
** This routine runs when the user presses Ctrl-C
*/
static void interrupt_handler(int NotUsed){
UNUSED_PARAMETER(NotUsed);
if( ++seenInterrupt>1 ) exit(1);
if( globalDb ) sqlite3_interrupt(globalDb);
}
#if (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE)
/*
** This routine runs for console events (e.g. Ctrl-C) on Win32
*/
static BOOL WINAPI ConsoleCtrlHandler(
DWORD dwCtrlType /* One of the CTRL_*_EVENT constants */
){
if( dwCtrlType==CTRL_C_EVENT ){
interrupt_handler(0);
return TRUE;
}
return FALSE;
}
#endif
#ifndef SQLITE_OMIT_AUTHORIZATION
/*
** This authorizer runs in safe mode.
*/
static int safeModeAuth(
void *pClientData,
int op,
const char *zA1,
const char *zA2,
const char *zA3,
const char *zA4
){
ShellState *p = (ShellState*)pClientData;
static const char *azProhibitedFunctions[] = {
"edit",
"fts3_tokenizer",
"load_extension",
"readfile",
"writefile",
"zipfile",
"zipfile_cds",
};
UNUSED_PARAMETER(zA1);
UNUSED_PARAMETER(zA3);
UNUSED_PARAMETER(zA4);
switch( op ){
case SQLITE_ATTACH: {
#ifndef SQLITE_SHELL_FIDDLE
/* In WASM builds the filesystem is a virtual sandbox, so
** there's no harm in using ATTACH. */
failIfSafeMode(p, "cannot run ATTACH in safe mode");
#endif
break;
}
case SQLITE_FUNCTION: {
int i;
for(i=0; i<ArraySize(azProhibitedFunctions); i++){
if( sqlite3_stricmp(zA2, azProhibitedFunctions[i])==0 ){
failIfSafeMode(p, "cannot use the %s() function in safe mode",
azProhibitedFunctions[i]);
}
}
break;
}
}
return SQLITE_OK;
}
/*
** When the ".auth ON" is set, the following authorizer callback is
** invoked. It always returns SQLITE_OK.
*/
static int shellAuth(
void *pClientData,
int op,
const char *zA1,
const char *zA2,
const char *zA3,
const char *zA4
){
ShellState *p = (ShellState*)pClientData;
static const char *azAction[] = { 0,
"CREATE_INDEX", "CREATE_TABLE", "CREATE_TEMP_INDEX",
"CREATE_TEMP_TABLE", "CREATE_TEMP_TRIGGER", "CREATE_TEMP_VIEW",
"CREATE_TRIGGER", "CREATE_VIEW", "DELETE",
"DROP_INDEX", "DROP_TABLE", "DROP_TEMP_INDEX",
"DROP_TEMP_TABLE", "DROP_TEMP_TRIGGER", "DROP_TEMP_VIEW",
"DROP_TRIGGER", "DROP_VIEW", "INSERT",
"PRAGMA", "READ", "SELECT",
"TRANSACTION", "UPDATE", "ATTACH",
"DETACH", "ALTER_TABLE", "REINDEX",
"ANALYZE", "CREATE_VTABLE", "DROP_VTABLE",
"FUNCTION", "SAVEPOINT", "RECURSIVE"
};
int i;
const char *az[4];
az[0] = zA1;
az[1] = zA2;
az[2] = zA3;
az[3] = zA4;
utf8_printf(p->out, "authorizer: %s", azAction[op]);
for(i=0; i<4; i++){
raw_printf(p->out, " ");
if( az[i] ){
output_c_string(p->out, az[i]);
}else{
raw_printf(p->out, "NULL");
}
}
raw_printf(p->out, "\n");
if( p->bSafeMode ) (void)safeModeAuth(pClientData, op, zA1, zA2, zA3, zA4);
return SQLITE_OK;
}
#endif
/*
** Print a schema statement. Part of MODE_Semi and MODE_Pretty output.
**
** This routine converts some CREATE TABLE statements for shadow tables
** in FTS3/4/5 into CREATE TABLE IF NOT EXISTS statements.
**
** If the schema statement in z[] contains a start-of-comment and if
** sqlite3_complete() returns false, try to terminate the comment before
** printing the result. https://sqlite.org/forum/forumpost/d7be961c5c
*/
static void printSchemaLine(FILE *out, const char *z, const char *zTail){
char *zToFree = 0;
if( z==0 ) return;
if( zTail==0 ) return;
if( zTail[0]==';' && (strstr(z, "/*")!=0 || strstr(z,"--")!=0) ){
const char *zOrig = z;
static const char *azTerm[] = { "", "*/", "\n" };
int i;
for(i=0; i<ArraySize(azTerm); i++){
char *zNew = sqlite3_mprintf("%s%s;", zOrig, azTerm[i]);
shell_check_oom(zNew);
if( sqlite3_complete(zNew) ){
size_t n = strlen(zNew);
zNew[n-1] = 0;
zToFree = zNew;
z = zNew;
break;
}
sqlite3_free(zNew);
}
}
if( sqlite3_strglob("CREATE TABLE ['\"]*", z)==0 ){
utf8_printf(out, "CREATE TABLE IF NOT EXISTS %s%s", z+13, zTail);
}else{
utf8_printf(out, "%s%s", z, zTail);
}
sqlite3_free(zToFree);
}
static void printSchemaLineN(FILE *out, char *z, int n, const char *zTail){
char c = z[n];
z[n] = 0;
printSchemaLine(out, z, zTail);
z[n] = c;
}
/*
** Return true if string z[] has nothing but whitespace and comments to the
** end of the first line.
*/
static int wsToEol(const char *z){
int i;
for(i=0; z[i]; i++){
if( z[i]=='\n' ) return 1;
if( IsSpace(z[i]) ) continue;
if( z[i]=='-' && z[i+1]=='-' ) return 1;
return 0;
}
return 1;
}
/*
** Add a new entry to the EXPLAIN QUERY PLAN data
*/
static void eqp_append(ShellState *p, int iEqpId, int p2, const char *zText){
EQPGraphRow *pNew;
i64 nText;
if( zText==0 ) return;
nText = strlen(zText);
if( p->autoEQPtest ){
utf8_printf(p->out, "%d,%d,%s\n", iEqpId, p2, zText);
}
pNew = sqlite3_malloc64( sizeof(*pNew) + nText );
shell_check_oom(pNew);
pNew->iEqpId = iEqpId;
pNew->iParentId = p2;
memcpy(pNew->zText, zText, nText+1);
pNew->pNext = 0;
if( p->sGraph.pLast ){
p->sGraph.pLast->pNext = pNew;
}else{
p->sGraph.pRow = pNew;
}
p->sGraph.pLast = pNew;
}
/*
** Free and reset the EXPLAIN QUERY PLAN data that has been collected
** in p->sGraph.
*/
static void eqp_reset(ShellState *p){
EQPGraphRow *pRow, *pNext;
for(pRow = p->sGraph.pRow; pRow; pRow = pNext){
pNext = pRow->pNext;
sqlite3_free(pRow);
}
memset(&p->sGraph, 0, sizeof(p->sGraph));
}
/* Return the next EXPLAIN QUERY PLAN line with iEqpId that occurs after
** pOld, or return the first such line if pOld is NULL
*/
static EQPGraphRow *eqp_next_row(ShellState *p, int iEqpId, EQPGraphRow *pOld){
EQPGraphRow *pRow = pOld ? pOld->pNext : p->sGraph.pRow;
while( pRow && pRow->iParentId!=iEqpId ) pRow = pRow->pNext;
return pRow;
}
/* Render a single level of the graph that has iEqpId as its parent. Called
** recursively to render sublevels.
*/
static void eqp_render_level(ShellState *p, int iEqpId){
EQPGraphRow *pRow, *pNext;
i64 n = strlen(p->sGraph.zPrefix);
char *z;
for(pRow = eqp_next_row(p, iEqpId, 0); pRow; pRow = pNext){
pNext = eqp_next_row(p, iEqpId, pRow);
z = pRow->zText;
utf8_printf(p->out, "%s%s%s\n", p->sGraph.zPrefix,
pNext ? "|--" : "`--", z);
if( n<(i64)sizeof(p->sGraph.zPrefix)-7 ){
memcpy(&p->sGraph.zPrefix[n], pNext ? "| " : " ", 4);
eqp_render_level(p, pRow->iEqpId);
p->sGraph.zPrefix[n] = 0;
}
}
}
/*
** Display and reset the EXPLAIN QUERY PLAN data
*/
static void eqp_render(ShellState *p, i64 nCycle){
EQPGraphRow *pRow = p->sGraph.pRow;
if( pRow ){
if( pRow->zText[0]=='-' ){
if( pRow->pNext==0 ){
eqp_reset(p);
return;
}
utf8_printf(p->out, "%s\n", pRow->zText+3);
p->sGraph.pRow = pRow->pNext;
sqlite3_free(pRow);
}else if( nCycle>0 ){
utf8_printf(p->out, "QUERY PLAN (cycles=%lld [100%%])\n", nCycle);
}else{
utf8_printf(p->out, "QUERY PLAN\n");
}
p->sGraph.zPrefix[0] = 0;
eqp_render_level(p, 0);
eqp_reset(p);
}
}
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
/*
** Progress handler callback.
*/
static int progress_handler(void *pClientData) {
ShellState *p = (ShellState*)pClientData;
p->nProgress++;
if( p->nProgress>=p->mxProgress && p->mxProgress>0 ){
raw_printf(p->out, "Progress limit reached (%u)\n", p->nProgress);
if( p->flgProgress & SHELL_PROGRESS_RESET ) p->nProgress = 0;
if( p->flgProgress & SHELL_PROGRESS_ONCE ) p->mxProgress = 0;
return 1;
}
if( (p->flgProgress & SHELL_PROGRESS_QUIET)==0 ){
raw_printf(p->out, "Progress %u\n", p->nProgress);
}
return 0;
}
#endif /* SQLITE_OMIT_PROGRESS_CALLBACK */
/*
** Print N dashes
*/
static void print_dashes(FILE *out, int N){
const char zDash[] = "--------------------------------------------------";
const int nDash = sizeof(zDash) - 1;
while( N>nDash ){
fputs(zDash, out);
N -= nDash;
}
raw_printf(out, "%.*s", N, zDash);
}
/*
** Print a markdown or table-style row separator using ascii-art
*/
static void print_row_separator(
ShellState *p,
int nArg,
const char *zSep
){
int i;
if( nArg>0 ){
fputs(zSep, p->out);
print_dashes(p->out, p->actualWidth[0]+2);
for(i=1; i<nArg; i++){
fputs(zSep, p->out);
print_dashes(p->out, p->actualWidth[i]+2);
}
fputs(zSep, p->out);
}
fputs("\n", p->out);
}
/*
** This is the callback routine that the shell
** invokes for each row of a query result.
*/
static int shell_callback(
void *pArg,
int nArg, /* Number of result columns */
char **azArg, /* Text of each result column */
char **azCol, /* Column names */
int *aiType /* Column types. Might be NULL */
){
int i;
ShellState *p = (ShellState*)pArg;
if( azArg==0 ) return 0;
switch( p->cMode ){
case MODE_Count:
case MODE_Off: {
break;
}
case MODE_Line: {
int w = 5;
if( azArg==0 ) break;
for(i=0; i<nArg; i++){
int len = strlen30(azCol[i] ? azCol[i] : "");
if( len>w ) w = len;
}
if( p->cnt++>0 ) utf8_printf(p->out, "%s", p->rowSeparator);
for(i=0; i<nArg; i++){
utf8_printf(p->out,"%*s = %s%s", w, azCol[i],
azArg[i] ? azArg[i] : p->nullValue, p->rowSeparator);
}
break;
}
case MODE_ScanExp:
case MODE_Explain: {
static const int aExplainWidth[] = {4, 13, 4, 4, 4, 13, 2, 13};
static const int aExplainMap[] = {0, 1, 2, 3, 4, 5, 6, 7 };
static const int aScanExpWidth[] = {4, 6, 6, 13, 4, 4, 4, 13, 2, 13};
static const int aScanExpMap[] = {0, 9, 8, 1, 2, 3, 4, 5, 6, 7 };
const int *aWidth = aExplainWidth;
const int *aMap = aExplainMap;
int nWidth = ArraySize(aExplainWidth);
int iIndent = 1;
if( p->cMode==MODE_ScanExp ){
aWidth = aScanExpWidth;
aMap = aScanExpMap;
nWidth = ArraySize(aScanExpWidth);
iIndent = 3;
}
if( nArg>nWidth ) nArg = nWidth;
/* If this is the first row seen, print out the headers */
if( p->cnt++==0 ){
for(i=0; i<nArg; i++){
utf8_width_print(p->out, aWidth[i], azCol[ aMap[i] ]);
fputs(i==nArg-1 ? "\n" : " ", p->out);
}
for(i=0; i<nArg; i++){
print_dashes(p->out, aWidth[i]);
fputs(i==nArg-1 ? "\n" : " ", p->out);
}
}
/* If there is no data, exit early. */
if( azArg==0 ) break;
for(i=0; i<nArg; i++){
const char *zSep = " ";
int w = aWidth[i];
const char *zVal = azArg[ aMap[i] ];
if( i==nArg-1 ) w = 0;
if( zVal && strlenChar(zVal)>w ){
w = strlenChar(zVal);
zSep = " ";
}
if( i==iIndent && p->aiIndent && p->pStmt ){
if( p->iIndent<p->nIndent ){
utf8_printf(p->out, "%*.s", p->aiIndent[p->iIndent], "");
}
p->iIndent++;
}
utf8_width_print(p->out, w, zVal ? zVal : p->nullValue);
fputs(i==nArg-1 ? "\n" : zSep, p->out);
}
break;
}
case MODE_Semi: { /* .schema and .fullschema output */
printSchemaLine(p->out, azArg[0], ";\n");
break;
}
case MODE_Pretty: { /* .schema and .fullschema with --indent */
char *z;
int j;
int nParen = 0;
char cEnd = 0;
char c;
int nLine = 0;
assert( nArg==1 );
if( azArg[0]==0 ) break;
if( sqlite3_strlike("CREATE VIEW%", azArg[0], 0)==0
|| sqlite3_strlike("CREATE TRIG%", azArg[0], 0)==0
){
utf8_printf(p->out, "%s;\n", azArg[0]);
break;
}
z = sqlite3_mprintf("%s", azArg[0]);
shell_check_oom(z);
j = 0;
for(i=0; IsSpace(z[i]); i++){}
for(; (c = z[i])!=0; i++){
if( IsSpace(c) ){
if( z[j-1]=='\r' ) z[j-1] = '\n';
if( IsSpace(z[j-1]) || z[j-1]=='(' ) continue;
}else if( (c=='(' || c==')') && j>0 && IsSpace(z[j-1]) ){
j--;
}
z[j++] = c;
}
while( j>0 && IsSpace(z[j-1]) ){ j--; }
z[j] = 0;
if( strlen30(z)>=79 ){
for(i=j=0; (c = z[i])!=0; i++){ /* Copy from z[i] back to z[j] */
if( c==cEnd ){
cEnd = 0;
}else if( c=='"' || c=='\'' || c=='`' ){
cEnd = c;
}else if( c=='[' ){
cEnd = ']';
}else if( c=='-' && z[i+1]=='-' ){
cEnd = '\n';
}else if( c=='(' ){
nParen++;
}else if( c==')' ){
nParen--;
if( nLine>0 && nParen==0 && j>0 ){
printSchemaLineN(p->out, z, j, "\n");
j = 0;
}
}
z[j++] = c;
if( nParen==1 && cEnd==0
&& (c=='(' || c=='\n' || (c==',' && !wsToEol(z+i+1)))
){
if( c=='\n' ) j--;
printSchemaLineN(p->out, z, j, "\n ");
j = 0;
nLine++;
while( IsSpace(z[i+1]) ){ i++; }
}
}
z[j] = 0;
}
printSchemaLine(p->out, z, ";\n");
sqlite3_free(z);
break;
}
case MODE_List: {
if( p->cnt++==0 && p->showHeader ){
for(i=0; i<nArg; i++){
utf8_printf(p->out,"%s%s",azCol[i],
i==nArg-1 ? p->rowSeparator : p->colSeparator);
}
}
if( azArg==0 ) break;
for(i=0; i<nArg; i++){
char *z = azArg[i];
if( z==0 ) z = p->nullValue;
utf8_printf(p->out, "%s", z);
if( i<nArg-1 ){
utf8_printf(p->out, "%s", p->colSeparator);
}else{
utf8_printf(p->out, "%s", p->rowSeparator);
}
}
break;
}
case MODE_Html: {
if( p->cnt++==0 && p->showHeader ){
raw_printf(p->out,"<TR>");
for(i=0; i<nArg; i++){
raw_printf(p->out,"<TH>");
output_html_string(p->out, azCol[i]);
raw_printf(p->out,"</TH>\n");
}
raw_printf(p->out,"</TR>\n");
}
if( azArg==0 ) break;
raw_printf(p->out,"<TR>");
for(i=0; i<nArg; i++){
raw_printf(p->out,"<TD>");
output_html_string(p->out, azArg[i] ? azArg[i] : p->nullValue);
raw_printf(p->out,"</TD>\n");
}
raw_printf(p->out,"</TR>\n");
break;
}
case MODE_Tcl: {
if( p->cnt++==0 && p->showHeader ){
for(i=0; i<nArg; i++){
output_c_string(p->out,azCol[i] ? azCol[i] : "");
if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator);
}
utf8_printf(p->out, "%s", p->rowSeparator);
}
if( azArg==0 ) break;
for(i=0; i<nArg; i++){
output_c_string(p->out, azArg[i] ? azArg[i] : p->nullValue);
if(i<nArg-1) utf8_printf(p->out, "%s", p->colSeparator);
}
utf8_printf(p->out, "%s", p->rowSeparator);
break;
}
case MODE_Csv: {
setBinaryMode(p->out, 1);
if( p->cnt++==0 && p->showHeader ){
for(i=0; i<nArg; i++){
output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1);
}
utf8_printf(p->out, "%s", p->rowSeparator);
}
if( nArg>0 ){
for(i=0; i<nArg; i++){
output_csv(p, azArg[i], i<nArg-1);
}
utf8_printf(p->out, "%s", p->rowSeparator);
}
setTextMode(p->out, 1);
break;
}
case MODE_Insert: {
if( azArg==0 ) break;
utf8_printf(p->out,"INSERT INTO %s",p->zDestTable);
if( p->showHeader ){
raw_printf(p->out,"(");
for(i=0; i<nArg; i++){
if( i>0 ) raw_printf(p->out, ",");
if( quoteChar(azCol[i]) ){
char *z = sqlite3_mprintf("\"%w\"", azCol[i]);
shell_check_oom(z);
utf8_printf(p->out, "%s", z);
sqlite3_free(z);
}else{
raw_printf(p->out, "%s", azCol[i]);
}
}
raw_printf(p->out,")");
}
p->cnt++;
for(i=0; i<nArg; i++){
raw_printf(p->out, i>0 ? "," : " VALUES(");
if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
utf8_printf(p->out,"NULL");
}else if( aiType && aiType[i]==SQLITE_TEXT ){
if( ShellHasFlag(p, SHFLG_Newlines) ){
output_quoted_string(p->out, azArg[i]);
}else{
output_quoted_escaped_string(p->out, azArg[i]);
}
}else if( aiType && aiType[i]==SQLITE_INTEGER ){
utf8_printf(p->out,"%s", azArg[i]);
}else if( aiType && aiType[i]==SQLITE_FLOAT ){
char z[50];
double r = sqlite3_column_double(p->pStmt, i);
sqlite3_uint64 ur;
memcpy(&ur,&r,sizeof(r));
if( ur==0x7ff0000000000000LL ){
raw_printf(p->out, "9.0e+999");
}else if( ur==0xfff0000000000000LL ){
raw_printf(p->out, "-9.0e+999");
}else{
sqlite3_int64 ir = (sqlite3_int64)r;
if( r==(double)ir ){
sqlite3_snprintf(50,z,"%lld.0", ir);
}else{
sqlite3_snprintf(50,z,"%!.20g", r);
}
raw_printf(p->out, "%s", z);
}
}else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
const void *pBlob = sqlite3_column_blob(p->pStmt, i);
int nBlob = sqlite3_column_bytes(p->pStmt, i);
output_hex_blob(p->out, pBlob, nBlob);
}else if( isNumber(azArg[i], 0) ){
utf8_printf(p->out,"%s", azArg[i]);
}else if( ShellHasFlag(p, SHFLG_Newlines) ){
output_quoted_string(p->out, azArg[i]);
}else{
output_quoted_escaped_string(p->out, azArg[i]);
}
}
raw_printf(p->out,");\n");
break;
}
case MODE_Json: {
if( azArg==0 ) break;
if( p->cnt==0 ){
fputs("[{", p->out);
}else{
fputs(",\n{", p->out);
}
p->cnt++;
for(i=0; i<nArg; i++){
output_json_string(p->out, azCol[i], -1);
putc(':', p->out);
if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
fputs("null",p->out);
}else if( aiType && aiType[i]==SQLITE_FLOAT ){
char z[50];
double r = sqlite3_column_double(p->pStmt, i);
sqlite3_uint64 ur;
memcpy(&ur,&r,sizeof(r));
if( ur==0x7ff0000000000000LL ){
raw_printf(p->out, "9.0e+999");
}else if( ur==0xfff0000000000000LL ){
raw_printf(p->out, "-9.0e+999");
}else{
sqlite3_snprintf(50,z,"%!.20g", r);
raw_printf(p->out, "%s", z);
}
}else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
const void *pBlob = sqlite3_column_blob(p->pStmt, i);
int nBlob = sqlite3_column_bytes(p->pStmt, i);
output_json_string(p->out, pBlob, nBlob);
}else if( aiType && aiType[i]==SQLITE_TEXT ){
output_json_string(p->out, azArg[i], -1);
}else{
utf8_printf(p->out,"%s", azArg[i]);
}
if( i<nArg-1 ){
putc(',', p->out);
}
}
putc('}', p->out);
break;
}
case MODE_Quote: {
if( azArg==0 ) break;
if( p->cnt==0 && p->showHeader ){
for(i=0; i<nArg; i++){
if( i>0 ) fputs(p->colSeparator, p->out);
output_quoted_string(p->out, azCol[i]);
}
fputs(p->rowSeparator, p->out);
}
p->cnt++;
for(i=0; i<nArg; i++){
if( i>0 ) fputs(p->colSeparator, p->out);
if( (azArg[i]==0) || (aiType && aiType[i]==SQLITE_NULL) ){
utf8_printf(p->out,"NULL");
}else if( aiType && aiType[i]==SQLITE_TEXT ){
output_quoted_string(p->out, azArg[i]);
}else if( aiType && aiType[i]==SQLITE_INTEGER ){
utf8_printf(p->out,"%s", azArg[i]);
}else if( aiType && aiType[i]==SQLITE_FLOAT ){
char z[50];
double r = sqlite3_column_double(p->pStmt, i);
sqlite3_snprintf(50,z,"%!.20g", r);
raw_printf(p->out, "%s", z);
}else if( aiType && aiType[i]==SQLITE_BLOB && p->pStmt ){
const void *pBlob = sqlite3_column_blob(p->pStmt, i);
int nBlob = sqlite3_column_bytes(p->pStmt, i);
output_hex_blob(p->out, pBlob, nBlob);
}else if( isNumber(azArg[i], 0) ){
utf8_printf(p->out,"%s", azArg[i]);
}else{
output_quoted_string(p->out, azArg[i]);
}
}
fputs(p->rowSeparator, p->out);
break;
}
case MODE_Ascii: {
if( p->cnt++==0 && p->showHeader ){
for(i=0; i<nArg; i++){
if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator);
utf8_printf(p->out,"%s",azCol[i] ? azCol[i] : "");
}
utf8_printf(p->out, "%s", p->rowSeparator);
}
if( azArg==0 ) break;
for(i=0; i<nArg; i++){
if( i>0 ) utf8_printf(p->out, "%s", p->colSeparator);
utf8_printf(p->out,"%s",azArg[i] ? azArg[i] : p->nullValue);
}
utf8_printf(p->out, "%s", p->rowSeparator);
break;
}
case MODE_EQP: {
eqp_append(p, atoi(azArg[0]), atoi(azArg[1]), azArg[3]);
break;
}
}
return 0;
}
/*
** This is the callback routine that the SQLite library
** invokes for each row of a query result.
*/
static int callback(void *pArg, int nArg, char **azArg, char **azCol){
/* since we don't have type info, call the shell_callback with a NULL value */
return shell_callback(pArg, nArg, azArg, azCol, NULL);
}
/*
** This is the callback routine from sqlite3_exec() that appends all
** output onto the end of a ShellText object.
*/
static int captureOutputCallback(void *pArg, int nArg, char **azArg, char **az){
ShellText *p = (ShellText*)pArg;
int i;
UNUSED_PARAMETER(az);
if( azArg==0 ) return 0;
if( p->n ) appendText(p, "|", 0);
for(i=0; i<nArg; i++){
if( i ) appendText(p, ",", 0);
if( azArg[i] ) appendText(p, azArg[i], 0);
}
return 0;
}
/*
** Generate an appropriate SELFTEST table in the main database.
*/
static void createSelftestTable(ShellState *p){
char *zErrMsg = 0;
sqlite3_exec(p->db,
"SAVEPOINT selftest_init;\n"
"CREATE TABLE IF NOT EXISTS selftest(\n"
" tno INTEGER PRIMARY KEY,\n" /* Test number */
" op TEXT,\n" /* Operator: memo run */
" cmd TEXT,\n" /* Command text */
" ans TEXT\n" /* Desired answer */
");"
"CREATE TEMP TABLE [_shell$self](op,cmd,ans);\n"
"INSERT INTO [_shell$self](rowid,op,cmd)\n"
" VALUES(coalesce((SELECT (max(tno)+100)/10 FROM selftest),10),\n"
" 'memo','Tests generated by --init');\n"
"INSERT INTO [_shell$self]\n"
" SELECT 'run',\n"
" 'SELECT hex(sha3_query(''SELECT type,name,tbl_name,sql "
"FROM sqlite_schema ORDER BY 2'',224))',\n"
" hex(sha3_query('SELECT type,name,tbl_name,sql "
"FROM sqlite_schema ORDER BY 2',224));\n"
"INSERT INTO [_shell$self]\n"
" SELECT 'run',"
" 'SELECT hex(sha3_query(''SELECT * FROM \"' ||"
" printf('%w',name) || '\" NOT INDEXED'',224))',\n"
" hex(sha3_query(printf('SELECT * FROM \"%w\" NOT INDEXED',name),224))\n"
" FROM (\n"
" SELECT name FROM sqlite_schema\n"
" WHERE type='table'\n"
" AND name<>'selftest'\n"
" AND coalesce(rootpage,0)>0\n"
" )\n"
" ORDER BY name;\n"
"INSERT INTO [_shell$self]\n"
" VALUES('run','PRAGMA integrity_check','ok');\n"
"INSERT INTO selftest(tno,op,cmd,ans)"
" SELECT rowid*10,op,cmd,ans FROM [_shell$self];\n"
"DROP TABLE [_shell$self];"
,0,0,&zErrMsg);
if( zErrMsg ){
utf8_printf(stderr, "SELFTEST initialization failure: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
sqlite3_exec(p->db, "RELEASE selftest_init",0,0,0);
}
/*
** Set the destination table field of the ShellState structure to
** the name of the table given. Escape any quote characters in the
** table name.
*/
static void set_table_name(ShellState *p, const char *zName){
int i, n;
char cQuote;
char *z;
if( p->zDestTable ){
free(p->zDestTable);
p->zDestTable = 0;
}
if( zName==0 ) return;
cQuote = quoteChar(zName);
n = strlen30(zName);
if( cQuote ) n += n+2;
z = p->zDestTable = malloc( n+1 );
shell_check_oom(z);
n = 0;
if( cQuote ) z[n++] = cQuote;
for(i=0; zName[i]; i++){
z[n++] = zName[i];
if( zName[i]==cQuote ) z[n++] = cQuote;
}
if( cQuote ) z[n++] = cQuote;
z[n] = 0;
}
/*
** Maybe construct two lines of text that point out the position of a
** syntax error. Return a pointer to the text, in memory obtained from
** sqlite3_malloc(). Or, if the most recent error does not involve a
** specific token that we can point to, return an empty string.
**
** In all cases, the memory returned is obtained from sqlite3_malloc64()
** and should be released by the caller invoking sqlite3_free().
*/
static char *shell_error_context(const char *zSql, sqlite3 *db){
int iOffset;
size_t len;
char *zCode;
char *zMsg;
int i;
if( db==0
|| zSql==0
|| (iOffset = sqlite3_error_offset(db))<0
|| iOffset>=(int)strlen(zSql)
){
return sqlite3_mprintf("");
}
while( iOffset>50 ){
iOffset--;
zSql++;
while( (zSql[0]&0xc0)==0x80 ){ zSql++; iOffset--; }
}
len = strlen(zSql);
if( len>78 ){
len = 78;
while( len>0 && (zSql[len]&0xc0)==0x80 ) len--;
}
zCode = sqlite3_mprintf("%.*s", len, zSql);
shell_check_oom(zCode);
for(i=0; zCode[i]; i++){ if( IsSpace(zSql[i]) ) zCode[i] = ' '; }
if( iOffset<25 ){
zMsg = sqlite3_mprintf("\n %z\n %*s^--- error here", zCode,iOffset,"");
}else{
zMsg = sqlite3_mprintf("\n %z\n %*serror here ---^", zCode,iOffset-14,"");
}
return zMsg;
}
/*
** Execute a query statement that will generate SQL output. Print
** the result columns, comma-separated, on a line and then add a
** semicolon terminator to the end of that line.
**
** If the number of columns is 1 and that column contains text "--"
** then write the semicolon on a separate line. That way, if a
** "--" comment occurs at the end of the statement, the comment
** won't consume the semicolon terminator.
*/
static int run_table_dump_query(
ShellState *p, /* Query context */
const char *zSelect /* SELECT statement to extract content */
){
sqlite3_stmt *pSelect;
int rc;
int nResult;
int i;
const char *z;
rc = sqlite3_prepare_v2(p->db, zSelect, -1, &pSelect, 0);
if( rc!=SQLITE_OK || !pSelect ){
char *zContext = shell_error_context(zSelect, p->db);
utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n%s", rc,
sqlite3_errmsg(p->db), zContext);
sqlite3_free(zContext);
if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
return rc;
}
rc = sqlite3_step(pSelect);
nResult = sqlite3_column_count(pSelect);
while( rc==SQLITE_ROW ){
z = (const char*)sqlite3_column_text(pSelect, 0);
utf8_printf(p->out, "%s", z);
for(i=1; i<nResult; i++){
utf8_printf(p->out, ",%s", sqlite3_column_text(pSelect, i));
}
if( z==0 ) z = "";
while( z[0] && (z[0]!='-' || z[1]!='-') ) z++;
if( z[0] ){
raw_printf(p->out, "\n;\n");
}else{
raw_printf(p->out, ";\n");
}
rc = sqlite3_step(pSelect);
}
rc = sqlite3_finalize(pSelect);
if( rc!=SQLITE_OK ){
utf8_printf(p->out, "/**** ERROR: (%d) %s *****/\n", rc,
sqlite3_errmsg(p->db));
if( (rc&0xff)!=SQLITE_CORRUPT ) p->nErr++;
}
return rc;
}
/*
** Allocate space and save off string indicating current error.
*/
static char *save_err_msg(
sqlite3 *db, /* Database to query */
const char *zPhase, /* When the error occurs */
int rc, /* Error code returned from API */
const char *zSql /* SQL string, or NULL */
){
char *zErr;
char *zContext;
sqlite3_str *pStr = sqlite3_str_new(0);
sqlite3_str_appendf(pStr, "%s, %s", zPhase, sqlite3_errmsg(db));
if( rc>1 ){
sqlite3_str_appendf(pStr, " (%d)", rc);
}
zContext = shell_error_context(zSql, db);
if( zContext ){
sqlite3_str_appendall(pStr, zContext);
sqlite3_free(zContext);
}
zErr = sqlite3_str_finish(pStr);
shell_check_oom(zErr);
return zErr;
}
#ifdef __linux__
/*
** Attempt to display I/O stats on Linux using /proc/PID/io
*/
static void displayLinuxIoStats(FILE *out){
FILE *in;
char z[200];
sqlite3_snprintf(sizeof(z), z, "/proc/%d/io", getpid());
in = fopen(z, "rb");
if( in==0 ) return;
while( fgets(z, sizeof(z), in)!=0 ){
static const struct {
const char *zPattern;
const char *zDesc;
} aTrans[] = {
{ "rchar: ", "Bytes received by read():" },
{ "wchar: ", "Bytes sent to write():" },
{ "syscr: ", "Read() system calls:" },
{ "syscw: ", "Write() system calls:" },
{ "read_bytes: ", "Bytes read from storage:" },
{ "write_bytes: ", "Bytes written to storage:" },
{ "cancelled_write_bytes: ", "Cancelled write bytes:" },
};
int i;
for(i=0; i<ArraySize(aTrans); i++){
int n = strlen30(aTrans[i].zPattern);
if( cli_strncmp(aTrans[i].zPattern, z, n)==0 ){
utf8_printf(out, "%-36s %s", aTrans[i].zDesc, &z[n]);
break;
}
}
}
fclose(in);
}
#endif
/*
** Display a single line of status using 64-bit values.
*/
static void displayStatLine(
ShellState *p, /* The shell context */
char *zLabel, /* Label for this one line */
char *zFormat, /* Format for the result */
int iStatusCtrl, /* Which status to display */
int bReset /* True to reset the stats */
){
sqlite3_int64 iCur = -1;
sqlite3_int64 iHiwtr = -1;
int i, nPercent;
char zLine[200];
sqlite3_status64(iStatusCtrl, &iCur, &iHiwtr, bReset);
for(i=0, nPercent=0; zFormat[i]; i++){
if( zFormat[i]=='%' ) nPercent++;
}
if( nPercent>1 ){
sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iCur, iHiwtr);
}else{
sqlite3_snprintf(sizeof(zLine), zLine, zFormat, iHiwtr);
}
raw_printf(p->out, "%-36s %s\n", zLabel, zLine);
}
/*
** Display memory stats.
*/
static int display_stats(
sqlite3 *db, /* Database to query */
ShellState *pArg, /* Pointer to ShellState */
int bReset /* True to reset the stats */
){
int iCur;
int iHiwtr;
FILE *out;
if( pArg==0 || pArg->out==0 ) return 0;
out = pArg->out;
if( pArg->pStmt && pArg->statsOn==2 ){
int nCol, i, x;
sqlite3_stmt *pStmt = pArg->pStmt;
char z[100];
nCol = sqlite3_column_count(pStmt);
raw_printf(out, "%-36s %d\n", "Number of output columns:", nCol);
for(i=0; i<nCol; i++){
sqlite3_snprintf(sizeof(z),z,"Column %d %nname:", i, &x);
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_name(pStmt,i));
#ifndef SQLITE_OMIT_DECLTYPE
sqlite3_snprintf(30, z+x, "declared type:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_decltype(pStmt, i));
#endif
#ifdef SQLITE_ENABLE_COLUMN_METADATA
sqlite3_snprintf(30, z+x, "database name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_database_name(pStmt,i));
sqlite3_snprintf(30, z+x, "table name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_table_name(pStmt,i));
sqlite3_snprintf(30, z+x, "origin name:");
utf8_printf(out, "%-36s %s\n", z, sqlite3_column_origin_name(pStmt,i));
#endif
}
}
if( pArg->statsOn==3 ){
if( pArg->pStmt ){
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP,bReset);
raw_printf(pArg->out, "VM-steps: %d\n", iCur);
}
return 0;
}
displayStatLine(pArg, "Memory Used:",
"%lld (max %lld) bytes", SQLITE_STATUS_MEMORY_USED, bReset);
displayStatLine(pArg, "Number of Outstanding Allocations:",
"%lld (max %lld)", SQLITE_STATUS_MALLOC_COUNT, bReset);
if( pArg->shellFlgs & SHFLG_Pagecache ){
displayStatLine(pArg, "Number of Pcache Pages Used:",
"%lld (max %lld) pages", SQLITE_STATUS_PAGECACHE_USED, bReset);
}
displayStatLine(pArg, "Number of Pcache Overflow Bytes:",
"%lld (max %lld) bytes", SQLITE_STATUS_PAGECACHE_OVERFLOW, bReset);
displayStatLine(pArg, "Largest Allocation:",
"%lld bytes", SQLITE_STATUS_MALLOC_SIZE, bReset);
displayStatLine(pArg, "Largest Pcache Allocation:",
"%lld bytes", SQLITE_STATUS_PAGECACHE_SIZE, bReset);
#ifdef YYTRACKMAXSTACKDEPTH
displayStatLine(pArg, "Deepest Parser Stack:",
"%lld (max %lld)", SQLITE_STATUS_PARSER_STACK, bReset);
#endif
if( db ){
if( pArg->shellFlgs & SHFLG_Lookaside ){
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_USED,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out,
"Lookaside Slots Used: %d (max %d)\n",
iCur, iHiwtr);
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_HIT,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Successful lookaside attempts: %d\n",
iHiwtr);
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Lookaside failures due to size: %d\n",
iHiwtr);
sqlite3_db_status(db, SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL,
&iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Lookaside failures due to OOM: %d\n",
iHiwtr);
}
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_USED, &iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Pager Heap Usage: %d bytes\n",
iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_HIT, &iCur, &iHiwtr, 1);
raw_printf(pArg->out, "Page cache hits: %d\n", iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_MISS, &iCur, &iHiwtr, 1);
raw_printf(pArg->out, "Page cache misses: %d\n", iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_WRITE, &iCur, &iHiwtr, 1);
raw_printf(pArg->out, "Page cache writes: %d\n", iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_CACHE_SPILL, &iCur, &iHiwtr, 1);
raw_printf(pArg->out, "Page cache spills: %d\n", iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_SCHEMA_USED, &iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Schema Heap Usage: %d bytes\n",
iCur);
iHiwtr = iCur = -1;
sqlite3_db_status(db, SQLITE_DBSTATUS_STMT_USED, &iCur, &iHiwtr, bReset);
raw_printf(pArg->out, "Statement Heap/Lookaside Usage: %d bytes\n",
iCur);
}
if( pArg->pStmt ){
int iHit, iMiss;
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FULLSCAN_STEP,
bReset);
raw_printf(pArg->out, "Fullscan Steps: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_SORT, bReset);
raw_printf(pArg->out, "Sort Operations: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_AUTOINDEX,bReset);
raw_printf(pArg->out, "Autoindex Inserts: %d\n", iCur);
iHit = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_HIT,
bReset);
iMiss = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_FILTER_MISS,
bReset);
if( iHit || iMiss ){
raw_printf(pArg->out, "Bloom filter bypass taken: %d/%d\n",
iHit, iHit+iMiss);
}
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_VM_STEP, bReset);
raw_printf(pArg->out, "Virtual Machine Steps: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_REPREPARE,bReset);
raw_printf(pArg->out, "Reprepare operations: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_RUN, bReset);
raw_printf(pArg->out, "Number of times run: %d\n", iCur);
iCur = sqlite3_stmt_status(pArg->pStmt, SQLITE_STMTSTATUS_MEMUSED, bReset);
raw_printf(pArg->out, "Memory used by prepared stmt: %d\n", iCur);
}
#ifdef __linux__
displayLinuxIoStats(pArg->out);
#endif
/* Do not remove this machine readable comment: extra-stats-output-here */
return 0;
}
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
static int scanStatsHeight(sqlite3_stmt *p, int iEntry){
int iPid = 0;
int ret = 1;
sqlite3_stmt_scanstatus_v2(p, iEntry,
SQLITE_SCANSTAT_SELECTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iPid
);
while( iPid!=0 ){
int ii;
for(ii=0; 1; ii++){
int iId;
int res;
res = sqlite3_stmt_scanstatus_v2(p, ii,
SQLITE_SCANSTAT_SELECTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iId
);
if( res ) break;
if( iId==iPid ){
sqlite3_stmt_scanstatus_v2(p, ii,
SQLITE_SCANSTAT_PARENTID, SQLITE_SCANSTAT_COMPLEX, (void*)&iPid
);
}
}
ret++;
}
return ret;
}
#endif
#ifdef SQLITE_ENABLE_STMT_SCANSTATUS
static void display_explain_scanstats(
sqlite3 *db, /* Database to query */
ShellState *pArg /* Pointer to ShellState */
){
static const int f = SQLITE_SCANSTAT_COMPLEX;
sqlite3_stmt *p = pArg->pStmt;
int ii = 0;
i64 nTotal = 0;
int nWidth = 0;
eqp_reset(pArg);
for(ii=0; 1; ii++){
const char *z = 0;
int n = 0;
if( sqlite3_stmt_scanstatus_v2(p,ii,SQLITE_SCANSTAT_EXPLAIN,f,(void*)&z) ){
break;
}
n = strlen(z) + scanStatsHeight(p, ii)*3;
if( n>nWidth ) nWidth = n;
}
nWidth += 4;
sqlite3_stmt_scanstatus_v2(p, -1, SQLITE_SCANSTAT_NCYCLE, f, (void*)&nTotal);
for(ii=0; 1; ii++){
i64 nLoop = 0;
i64 nRow = 0;
i64 nCycle = 0;
int iId = 0;
int iPid = 0;
const char *z = 0;
const char *zName = 0;
char *zText = 0;
double rEst = 0.0;
if( sqlite3_stmt_scanstatus_v2(p,ii,SQLITE_SCANSTAT_EXPLAIN,f,(void*)&z) ){
break;
}
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_EST,f,(void*)&rEst);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NLOOP,f,(void*)&nLoop);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NVISIT,f,(void*)&nRow);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NCYCLE,f,(void*)&nCycle);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_SELECTID,f,(void*)&iId);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_PARENTID,f,(void*)&iPid);
sqlite3_stmt_scanstatus_v2(p, ii, SQLITE_SCANSTAT_NAME,f,(void*)&zName);
zText = sqlite3_mprintf("%s", z);
if( nCycle>=0 || nLoop>=0 || nRow>=0 ){
char *z = 0;
if( nCycle>=0 && nTotal>0 ){
z = sqlite3_mprintf("%zcycles=%lld [%d%%]", z,
nCycle, ((nCycle*100)+nTotal/2) / nTotal
);
}
if( nLoop>=0 ){
z = sqlite3_mprintf("%z%sloops=%lld", z, z ? " " : "", nLoop);
}
if( nRow>=0 ){
z = sqlite3_mprintf("%z%srows=%lld", z, z ? " " : "", nRow);
}
if( zName && pArg->scanstatsOn>1 ){
double rpl = (double)nRow / (double)nLoop;
z = sqlite3_mprintf("%z rpl=%.1f est=%.1f", z, rpl, rEst);
}
zText = sqlite3_mprintf(
"% *z (%z)", -1*(nWidth-scanStatsHeight(p, ii)*3), zText, z
);
}
eqp_append(pArg, iId, iPid, zText);
sqlite3_free(zText);
}
eqp_render(pArg, nTotal);
}
#endif
/*
** Parameter azArray points to a zero-terminated array of strings. zStr
** points to a single nul-terminated string. Return non-zero if zStr
** is equal, according to strcmp(), to any of the strings in the array.
** Otherwise, return zero.
*/
static int str_in_array(const char *zStr, const char **azArray){
int i;
for(i=0; azArray[i]; i++){
if( 0==cli_strcmp(zStr, azArray[i]) ) return 1;
}
return 0;
}
/*
** If compiled statement pSql appears to be an EXPLAIN statement, allocate
** and populate the ShellState.aiIndent[] array with the number of
** spaces each opcode should be indented before it is output.
**
** The indenting rules are:
**
** * For each "Next", "Prev", "VNext" or "VPrev" instruction, indent
** all opcodes that occur between the p2 jump destination and the opcode
** itself by 2 spaces.
**
** * Do the previous for "Return" instructions for when P2 is positive.
** See tag-20220407a in wherecode.c and vdbe.c.
**
** * For each "Goto", if the jump destination is earlier in the program
** and ends on one of:
** Yield SeekGt SeekLt RowSetRead Rewind
** or if the P1 parameter is one instead of zero,
** then indent all opcodes between the earlier instruction
** and "Goto" by 2 spaces.
*/
static void explain_data_prepare(ShellState *p, sqlite3_stmt *pSql){
int *abYield = 0; /* True if op is an OP_Yield */
int nAlloc = 0; /* Allocated size of p->aiIndent[], abYield */
int iOp; /* Index of operation in p->aiIndent[] */
const char *azNext[] = { "Next", "Prev", "VPrev", "VNext", "SorterNext",
"Return", 0 };
const char *azYield[] = { "Yield", "SeekLT", "SeekGT", "RowSetRead",
"Rewind", 0 };
const char *azGoto[] = { "Goto", 0 };
/* The caller guarantees that the leftmost 4 columns of the statement
** passed to this function are equivalent to the leftmost 4 columns
** of EXPLAIN statement output. In practice the statement may be
** an EXPLAIN, or it may be a query on the bytecode() virtual table. */
assert( sqlite3_column_count(pSql)>=4 );
assert( 0==sqlite3_stricmp( sqlite3_column_name(pSql, 0), "addr" ) );
assert( 0==sqlite3_stricmp( sqlite3_column_name(pSql, 1), "opcode" ) );
assert( 0==sqlite3_stricmp( sqlite3_column_name(pSql, 2), "p1" ) );
assert( 0==sqlite3_stricmp( sqlite3_column_name(pSql, 3), "p2" ) );
for(iOp=0; SQLITE_ROW==sqlite3_step(pSql); iOp++){
int i;
int iAddr = sqlite3_column_int(pSql, 0);
const char *zOp = (const char*)sqlite3_column_text(pSql, 1);
int p1 = sqlite3_column_int(pSql, 2);
int p2 = sqlite3_column_int(pSql, 3);
/* Assuming that p2 is an instruction address, set variable p2op to the
** index of that instruction in the aiIndent[] array. p2 and p2op may be
** different if the current instruction is part of a sub-program generated
** by an SQL trigger or foreign key. */
int p2op = (p2 + (iOp-iAddr));
/* Grow the p->aiIndent array as required */
if( iOp>=nAlloc ){
nAlloc += 100;
p->aiIndent = (int*)sqlite3_realloc64(p->aiIndent, nAlloc*sizeof(int));
shell_check_oom(p->aiIndent);
abYield = (int*)sqlite3_realloc64(abYield, nAlloc*sizeof(int));
shell_check_oom(abYield);
}
abYield[iOp] = str_in_array(zOp, azYield);
p->aiIndent[iOp] = 0;
p->nIndent = iOp+1;
if( str_in_array(zOp, azNext) && p2op>0 ){
for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
}
if( str_in_array(zOp, azGoto) && p2op<iOp && (abYield[p2op] || p1) ){
for(i=p2op; i<iOp; i++) p->aiIndent[i] += 2;
}
}
p->iIndent = 0;
sqlite3_free(abYield);
sqlite3_reset(pSql);
}
/*
** Free the array allocated by explain_data_prepare().
*/
static void explain_data_delete(ShellState *p){
sqlite3_free(p->aiIndent);
p->aiIndent = 0;
p->nIndent = 0;
p->iIndent = 0;
}
static void exec_prepared_stmt(ShellState*, sqlite3_stmt*);
/*
** Display scan stats.
*/
static void display_scanstats(
sqlite3 *db, /* Database to query */
ShellState *pArg /* Pointer to ShellState */
){
#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
UNUSED_PARAMETER(db);
UNUSED_PARAMETER(pArg);
#else
if( pArg->scanstatsOn==3 ){
const char *zSql =
" SELECT addr, opcode, p1, p2, p3, p4, p5, comment, nexec,"
" round(ncycle*100.0 / (sum(ncycle) OVER ()), 2)||'%' AS cycles"
" FROM bytecode(?)";
int rc = SQLITE_OK;
sqlite3_stmt *pStmt = 0;
rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
if( rc==SQLITE_OK ){
sqlite3_stmt *pSave = pArg->pStmt;
pArg->pStmt = pStmt;
sqlite3_bind_pointer(pStmt, 1, pSave, "stmt-pointer", 0);
pArg->cnt = 0;
pArg->cMode = MODE_ScanExp;
explain_data_prepare(pArg, pStmt);
exec_prepared_stmt(pArg, pStmt);
explain_data_delete(pArg);
sqlite3_finalize(pStmt);
pArg->pStmt = pSave;
}
}else{
display_explain_scanstats(db, pArg);
}
#endif
}
/*
** Disable and restore .wheretrace and .treetrace/.selecttrace settings.
*/
static unsigned int savedSelectTrace;
static unsigned int savedWhereTrace;
static void disable_debug_trace_modes(void){
unsigned int zero = 0;
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 0, &savedSelectTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &zero);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 2, &savedWhereTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &zero);
}
static void restore_debug_trace_modes(void){
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &savedSelectTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &savedWhereTrace);
}
/* Create the TEMP table used to store parameter bindings */
static void bind_table_init(ShellState *p){
int wrSchema = 0;
int defensiveMode = 0;
sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, -1, &defensiveMode);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, 0, 0);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, -1, &wrSchema);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, 1, 0);
sqlite3_exec(p->db,
"CREATE TABLE IF NOT EXISTS temp.sqlite_parameters(\n"
" key TEXT PRIMARY KEY,\n"
" value\n"
") WITHOUT ROWID;",
0, 0, 0);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_WRITABLE_SCHEMA, wrSchema, 0);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, defensiveMode, 0);
}
/*
** Bind parameters on a prepared statement.
**
** Parameter bindings are taken from a TEMP table of the form:
**
** CREATE TEMP TABLE sqlite_parameters(key TEXT PRIMARY KEY, value)
** WITHOUT ROWID;
**
** No bindings occur if this table does not exist. The name of the table
** begins with "sqlite_" so that it will not collide with ordinary application
** tables. The table must be in the TEMP schema.
*/
static void bind_prepared_stmt(ShellState *pArg, sqlite3_stmt *pStmt){
int nVar;
int i;
int rc;
sqlite3_stmt *pQ = 0;
nVar = sqlite3_bind_parameter_count(pStmt);
if( nVar==0 ) return; /* Nothing to do */
if( sqlite3_table_column_metadata(pArg->db, "TEMP", "sqlite_parameters",
"key", 0, 0, 0, 0, 0)!=SQLITE_OK ){
rc = SQLITE_NOTFOUND;
pQ = 0;
}else{
rc = sqlite3_prepare_v2(pArg->db,
"SELECT value FROM temp.sqlite_parameters"
" WHERE key=?1", -1, &pQ, 0);
}
for(i=1; i<=nVar; i++){
char zNum[30];
const char *zVar = sqlite3_bind_parameter_name(pStmt, i);
if( zVar==0 ){
sqlite3_snprintf(sizeof(zNum),zNum,"?%d",i);
zVar = zNum;
}
sqlite3_bind_text(pQ, 1, zVar, -1, SQLITE_STATIC);
if( rc==SQLITE_OK && pQ && sqlite3_step(pQ)==SQLITE_ROW ){
sqlite3_bind_value(pStmt, i, sqlite3_column_value(pQ, 0));
#ifdef NAN
}else if( sqlite3_strlike("_NAN", zVar, 0)==0 ){
sqlite3_bind_double(pStmt, i, NAN);
#endif
#ifdef INFINITY
}else if( sqlite3_strlike("_INF", zVar, 0)==0 ){
sqlite3_bind_double(pStmt, i, INFINITY);
#endif
}else{
sqlite3_bind_null(pStmt, i);
}
sqlite3_reset(pQ);
}
sqlite3_finalize(pQ);
}
/*
** UTF8 box-drawing characters. Imagine box lines like this:
**
** 1
** |
** 4 --+-- 2
** |
** 3
**
** Each box characters has between 2 and 4 of the lines leading from
** the center. The characters are here identified by the numbers of
** their corresponding lines.
*/
#define BOX_24 "\342\224\200" /* U+2500 --- */
#define BOX_13 "\342\224\202" /* U+2502 | */
#define BOX_23 "\342\224\214" /* U+250c ,- */
#define BOX_34 "\342\224\220" /* U+2510 -, */
#define BOX_12 "\342\224\224" /* U+2514 '- */
#define BOX_14 "\342\224\230" /* U+2518 -' */
#define BOX_123 "\342\224\234" /* U+251c |- */
#define BOX_134 "\342\224\244" /* U+2524 -| */
#define BOX_234 "\342\224\254" /* U+252c -,- */
#define BOX_124 "\342\224\264" /* U+2534 -'- */
#define BOX_1234 "\342\224\274" /* U+253c -|- */
/* Draw horizontal line N characters long using unicode box
** characters
*/
static void print_box_line(FILE *out, int N){
const char zDash[] =
BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24
BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24 BOX_24;
const int nDash = sizeof(zDash) - 1;
N *= 3;
while( N>nDash ){
utf8_printf(out, zDash);
N -= nDash;
}
utf8_printf(out, "%.*s", N, zDash);
}
/*
** Draw a horizontal separator for a MODE_Box table.
*/
static void print_box_row_separator(
ShellState *p,
int nArg,
const char *zSep1,
const char *zSep2,
const char *zSep3
){
int i;
if( nArg>0 ){
utf8_printf(p->out, "%s", zSep1);
print_box_line(p->out, p->actualWidth[0]+2);
for(i=1; i<nArg; i++){
utf8_printf(p->out, "%s", zSep2);
print_box_line(p->out, p->actualWidth[i]+2);
}
utf8_printf(p->out, "%s", zSep3);
}
fputs("\n", p->out);
}
/*
** z[] is a line of text that is to be displayed the .mode box or table or
** similar tabular formats. z[] might contain control characters such
** as \n, \t, \f, or \r.
**
** Compute characters to display on the first line of z[]. Stop at the
** first \r, \n, or \f. Expand \t into spaces. Return a copy (obtained
** from malloc()) of that first line, which caller should free sometime.
** Write anything to display on the next line into *pzTail. If this is
** the last line, write a NULL into *pzTail. (*pzTail is not allocated.)
*/
static char *translateForDisplayAndDup(
const unsigned char *z, /* Input text to be transformed */
const unsigned char **pzTail, /* OUT: Tail of the input for next line */
int mxWidth, /* Max width. 0 means no limit */
u8 bWordWrap /* If true, avoid breaking mid-word */
){
int i; /* Input bytes consumed */
int j; /* Output bytes generated */
int k; /* Input bytes to be displayed */
int n; /* Output column number */
unsigned char *zOut; /* Output text */
if( z==0 ){
*pzTail = 0;
return 0;
}
if( mxWidth<0 ) mxWidth = -mxWidth;
if( mxWidth==0 ) mxWidth = 1000000;
i = j = n = 0;
while( n<mxWidth ){
if( z[i]>=' ' ){
n++;
do{ i++; j++; }while( (z[i]&0xc0)==0x80 );
continue;
}
if( z[i]=='\t' ){
do{
n++;
j++;
}while( (n&7)!=0 && n<mxWidth );
i++;
continue;
}
break;
}
if( n>=mxWidth && bWordWrap ){
/* Perhaps try to back up to a better place to break the line */
for(k=i; k>i/2; k--){
if( isspace(z[k-1]) ) break;
}
if( k<=i/2 ){
for(k=i; k>i/2; k--){
if( isalnum(z[k-1])!=isalnum(z[k]) && (z[k]&0xc0)!=0x80 ) break;
}
}
if( k<=i/2 ){
k = i;
}else{
i = k;
while( z[i]==' ' ) i++;
}
}else{
k = i;
}
if( n>=mxWidth && z[i]>=' ' ){
*pzTail = &z[i];
}else if( z[i]=='\r' && z[i+1]=='\n' ){
*pzTail = z[i+2] ? &z[i+2] : 0;
}else if( z[i]==0 || z[i+1]==0 ){
*pzTail = 0;
}else{
*pzTail = &z[i+1];
}
zOut = malloc( j+1 );
shell_check_oom(zOut);
i = j = n = 0;
while( i<k ){
if( z[i]>=' ' ){
n++;
do{ zOut[j++] = z[i++]; }while( (z[i]&0xc0)==0x80 );
continue;
}
if( z[i]=='\t' ){
do{
n++;
zOut[j++] = ' ';
}while( (n&7)!=0 && n<mxWidth );
i++;
continue;
}
break;
}
zOut[j] = 0;
return (char*)zOut;
}
/* Extract the value of the i-th current column for pStmt as an SQL literal
** value. Memory is obtained from sqlite3_malloc64() and must be freed by
** the caller.
*/
static char *quoted_column(sqlite3_stmt *pStmt, int i){
switch( sqlite3_column_type(pStmt, i) ){
case SQLITE_NULL: {
return sqlite3_mprintf("NULL");
}
case SQLITE_INTEGER:
case SQLITE_FLOAT: {
return sqlite3_mprintf("%s",sqlite3_column_text(pStmt,i));
}
case SQLITE_TEXT: {
return sqlite3_mprintf("%Q",sqlite3_column_text(pStmt,i));
}
case SQLITE_BLOB: {
int j;
sqlite3_str *pStr = sqlite3_str_new(0);
const unsigned char *a = sqlite3_column_blob(pStmt,i);
int n = sqlite3_column_bytes(pStmt,i);
sqlite3_str_append(pStr, "x'", 2);
for(j=0; j<n; j++){
sqlite3_str_appendf(pStr, "%02x", a[j]);
}
sqlite3_str_append(pStr, "'", 1);
return sqlite3_str_finish(pStr);
}
}
return 0; /* Not reached */
}
/*
** Run a prepared statement and output the result in one of the
** table-oriented formats: MODE_Column, MODE_Markdown, MODE_Table,
** or MODE_Box.
**
** This is different from ordinary exec_prepared_stmt() in that
** it has to run the entire query and gather the results into memory
** first, in order to determine column widths, before providing
** any output.
*/
static void exec_prepared_stmt_columnar(
ShellState *p, /* Pointer to ShellState */
sqlite3_stmt *pStmt /* Statement to run */
){
sqlite3_int64 nRow = 0;
int nColumn = 0;
char **azData = 0;
sqlite3_int64 nAlloc = 0;
char *abRowDiv = 0;
const unsigned char *uz;
const char *z;
char **azQuoted = 0;
int rc;
sqlite3_int64 i, nData;
int j, nTotal, w, n;
const char *colSep = 0;
const char *rowSep = 0;
const unsigned char **azNextLine = 0;
int bNextLine = 0;
int bMultiLineRowExists = 0;
int bw = p->cmOpts.bWordWrap;
const char *zEmpty = "";
const char *zShowNull = p->nullValue;
rc = sqlite3_step(pStmt);
if( rc!=SQLITE_ROW ) return;
nColumn = sqlite3_column_count(pStmt);
nAlloc = nColumn*4;
if( nAlloc<=0 ) nAlloc = 1;
azData = sqlite3_malloc64( nAlloc*sizeof(char*) );
shell_check_oom(azData);
azNextLine = sqlite3_malloc64( nColumn*sizeof(char*) );
shell_check_oom(azNextLine);
memset((void*)azNextLine, 0, nColumn*sizeof(char*) );
if( p->cmOpts.bQuote ){
azQuoted = sqlite3_malloc64( nColumn*sizeof(char*) );
shell_check_oom(azQuoted);
memset(azQuoted, 0, nColumn*sizeof(char*) );
}
abRowDiv = sqlite3_malloc64( nAlloc/nColumn );
shell_check_oom(abRowDiv);
if( nColumn>p->nWidth ){
p->colWidth = realloc(p->colWidth, (nColumn+1)*2*sizeof(int));
shell_check_oom(p->colWidth);
for(i=p->nWidth; i<nColumn; i++) p->colWidth[i] = 0;
p->nWidth = nColumn;
p->actualWidth = &p->colWidth[nColumn];
}
memset(p->actualWidth, 0, nColumn*sizeof(int));
for(i=0; i<nColumn; i++){
w = p->colWidth[i];
if( w<0 ) w = -w;
p->actualWidth[i] = w;
}
for(i=0; i<nColumn; i++){
const unsigned char *zNotUsed;
int wx = p->colWidth[i];
if( wx==0 ){
wx = p->cmOpts.iWrap;
}
if( wx<0 ) wx = -wx;
uz = (const unsigned char*)sqlite3_column_name(pStmt,i);
if( uz==0 ) uz = (u8*)"";
azData[i] = translateForDisplayAndDup(uz, &zNotUsed, wx, bw);
}
do{
int useNextLine = bNextLine;
bNextLine = 0;
if( (nRow+2)*nColumn >= nAlloc ){
nAlloc *= 2;
azData = sqlite3_realloc64(azData, nAlloc*sizeof(char*));
shell_check_oom(azData);
abRowDiv = sqlite3_realloc64(abRowDiv, nAlloc/nColumn);
shell_check_oom(abRowDiv);
}
abRowDiv[nRow] = 1;
nRow++;
for(i=0; i<nColumn; i++){
int wx = p->colWidth[i];
if( wx==0 ){
wx = p->cmOpts.iWrap;
}
if( wx<0 ) wx = -wx;
if( useNextLine ){
uz = azNextLine[i];
if( uz==0 ) uz = (u8*)zEmpty;
}else if( p->cmOpts.bQuote ){
sqlite3_free(azQuoted[i]);
azQuoted[i] = quoted_column(pStmt,i);
uz = (const unsigned char*)azQuoted[i];
}else{
uz = (const unsigned char*)sqlite3_column_text(pStmt,i);
if( uz==0 ) uz = (u8*)zShowNull;
}
azData[nRow*nColumn + i]
= translateForDisplayAndDup(uz, &azNextLine[i], wx, bw);
if( azNextLine[i] ){
bNextLine = 1;
abRowDiv[nRow-1] = 0;
bMultiLineRowExists = 1;
}
}
}while( bNextLine || sqlite3_step(pStmt)==SQLITE_ROW );
nTotal = nColumn*(nRow+1);
for(i=0; i<nTotal; i++){
z = azData[i];
if( z==0 ) z = (char*)zEmpty;
n = strlenChar(z);
j = i%nColumn;
if( n>p->actualWidth[j] ) p->actualWidth[j] = n;
}
if( seenInterrupt ) goto columnar_end;
if( nColumn==0 ) goto columnar_end;
switch( p->cMode ){
case MODE_Column: {
colSep = " ";
rowSep = "\n";
if( p->showHeader ){
for(i=0; i<nColumn; i++){
w = p->actualWidth[i];
if( p->colWidth[i]<0 ) w = -w;
utf8_width_print(p->out, w, azData[i]);
fputs(i==nColumn-1?"\n":" ", p->out);
}
for(i=0; i<nColumn; i++){
print_dashes(p->out, p->actualWidth[i]);
fputs(i==nColumn-1?"\n":" ", p->out);
}
}
break;
}
case MODE_Table: {
colSep = " | ";
rowSep = " |\n";
print_row_separator(p, nColumn, "+");
fputs("| ", p->out);
for(i=0; i<nColumn; i++){
w = p->actualWidth[i];
n = strlenChar(azData[i]);
utf8_printf(p->out, "%*s%s%*s", (w-n)/2, "", azData[i], (w-n+1)/2, "");
fputs(i==nColumn-1?" |\n":" | ", p->out);
}
print_row_separator(p, nColumn, "+");
break;
}
case MODE_Markdown: {
colSep = " | ";
rowSep = " |\n";
fputs("| ", p->out);
for(i=0; i<nColumn; i++){
w = p->actualWidth[i];
n = strlenChar(azData[i]);
utf8_printf(p->out, "%*s%s%*s", (w-n)/2, "", azData[i], (w-n+1)/2, "");
fputs(i==nColumn-1?" |\n":" | ", p->out);
}
print_row_separator(p, nColumn, "|");
break;
}
case MODE_Box: {
colSep = " " BOX_13 " ";
rowSep = " " BOX_13 "\n";
print_box_row_separator(p, nColumn, BOX_23, BOX_234, BOX_34);
utf8_printf(p->out, BOX_13 " ");
for(i=0; i<nColumn; i++){
w = p->actualWidth[i];
n = strlenChar(azData[i]);
utf8_printf(p->out, "%*s%s%*s%s",
(w-n)/2, "", azData[i], (w-n+1)/2, "",
i==nColumn-1?" "BOX_13"\n":" "BOX_13" ");
}
print_box_row_separator(p, nColumn, BOX_123, BOX_1234, BOX_134);
break;
}
}
for(i=nColumn, j=0; i<nTotal; i++, j++){
if( j==0 && p->cMode!=MODE_Column ){
utf8_printf(p->out, "%s", p->cMode==MODE_Box?BOX_13" ":"| ");
}
z = azData[i];
if( z==0 ) z = p->nullValue;
w = p->actualWidth[j];
if( p->colWidth[j]<0 ) w = -w;
utf8_width_print(p->out, w, z);
if( j==nColumn-1 ){
utf8_printf(p->out, "%s", rowSep);
if( bMultiLineRowExists && abRowDiv[i/nColumn-1] && i+1<nTotal ){
if( p->cMode==MODE_Table ){
print_row_separator(p, nColumn, "+");
}else if( p->cMode==MODE_Box ){
print_box_row_separator(p, nColumn, BOX_123, BOX_1234, BOX_134);
}else if( p->cMode==MODE_Column ){
raw_printf(p->out, "\n");
}
}
j = -1;
if( seenInterrupt ) goto columnar_end;
}else{
utf8_printf(p->out, "%s", colSep);
}
}
if( p->cMode==MODE_Table ){
print_row_separator(p, nColumn, "+");
}else if( p->cMode==MODE_Box ){
print_box_row_separator(p, nColumn, BOX_12, BOX_124, BOX_14);
}
columnar_end:
if( seenInterrupt ){
utf8_printf(p->out, "Interrupt\n");
}
nData = (nRow+1)*nColumn;
for(i=0; i<nData; i++){
z = azData[i];
if( z!=zEmpty && z!=zShowNull ) free(azData[i]);
}
sqlite3_free(azData);
sqlite3_free((void*)azNextLine);
sqlite3_free(abRowDiv);
if( azQuoted ){
for(i=0; i<nColumn; i++) sqlite3_free(azQuoted[i]);
sqlite3_free(azQuoted);
}
}
/*
** Run a prepared statement
*/
static void exec_prepared_stmt(
ShellState *pArg, /* Pointer to ShellState */
sqlite3_stmt *pStmt /* Statement to run */
){
int rc;
sqlite3_uint64 nRow = 0;
if( pArg->cMode==MODE_Column
|| pArg->cMode==MODE_Table
|| pArg->cMode==MODE_Box
|| pArg->cMode==MODE_Markdown
){
exec_prepared_stmt_columnar(pArg, pStmt);
return;
}
/* perform the first step. this will tell us if we
** have a result set or not and how wide it is.
*/
rc = sqlite3_step(pStmt);
/* if we have a result set... */
if( SQLITE_ROW == rc ){
/* allocate space for col name ptr, value ptr, and type */
int nCol = sqlite3_column_count(pStmt);
void *pData = sqlite3_malloc64(3*nCol*sizeof(const char*) + 1);
if( !pData ){
shell_out_of_memory();
}else{
char **azCols = (char **)pData; /* Names of result columns */
char **azVals = &azCols[nCol]; /* Results */
int *aiTypes = (int *)&azVals[nCol]; /* Result types */
int i, x;
assert(sizeof(int) <= sizeof(char *));
/* save off ptrs to column names */
for(i=0; i<nCol; i++){
azCols[i] = (char *)sqlite3_column_name(pStmt, i);
}
do{
nRow++;
/* extract the data and data types */
for(i=0; i<nCol; i++){
aiTypes[i] = x = sqlite3_column_type(pStmt, i);
if( x==SQLITE_BLOB
&& pArg
&& (pArg->cMode==MODE_Insert || pArg->cMode==MODE_Quote)
){
azVals[i] = "";
}else{
azVals[i] = (char*)sqlite3_column_text(pStmt, i);
}
if( !azVals[i] && (aiTypes[i]!=SQLITE_NULL) ){
rc = SQLITE_NOMEM;
break; /* from for */
}
} /* end for */
/* if data and types extracted successfully... */
if( SQLITE_ROW == rc ){
/* call the supplied callback with the result row data */
if( shell_callback(pArg, nCol, azVals, azCols, aiTypes) ){
rc = SQLITE_ABORT;
}else{
rc = sqlite3_step(pStmt);
}
}
} while( SQLITE_ROW == rc );
sqlite3_free(pData);
if( pArg->cMode==MODE_Json ){
fputs("]\n", pArg->out);
}else if( pArg->cMode==MODE_Count ){
char zBuf[200];
sqlite3_snprintf(sizeof(zBuf), zBuf, "%llu row%s\n",
nRow, nRow!=1 ? "s" : "");
printf("%s", zBuf);
}
}
}
}
#ifndef SQLITE_OMIT_VIRTUALTABLE
/*
** This function is called to process SQL if the previous shell command
** was ".expert". It passes the SQL in the second argument directly to
** the sqlite3expert object.
**
** If successful, SQLITE_OK is returned. Otherwise, an SQLite error
** code. In this case, (*pzErr) may be set to point to a buffer containing
** an English language error message. It is the responsibility of the
** caller to eventually free this buffer using sqlite3_free().
*/
static int expertHandleSQL(
ShellState *pState,
const char *zSql,
char **pzErr
){
assert( pState->expert.pExpert );
assert( pzErr==0 || *pzErr==0 );
return sqlite3_expert_sql(pState->expert.pExpert, zSql, pzErr);
}
/*
** This function is called either to silently clean up the object
** created by the ".expert" command (if bCancel==1), or to generate a
** report from it and then clean it up (if bCancel==0).
**
** If successful, SQLITE_OK is returned. Otherwise, an SQLite error
** code. In this case, (*pzErr) may be set to point to a buffer containing
** an English language error message. It is the responsibility of the
** caller to eventually free this buffer using sqlite3_free().
*/
static int expertFinish(
ShellState *pState,
int bCancel,
char **pzErr
){
int rc = SQLITE_OK;
sqlite3expert *p = pState->expert.pExpert;
assert( p );
assert( bCancel || pzErr==0 || *pzErr==0 );
if( bCancel==0 ){
FILE *out = pState->out;
int bVerbose = pState->expert.bVerbose;
rc = sqlite3_expert_analyze(p, pzErr);
if( rc==SQLITE_OK ){
int nQuery = sqlite3_expert_count(p);
int i;
if( bVerbose ){
const char *zCand = sqlite3_expert_report(p,0,EXPERT_REPORT_CANDIDATES);
raw_printf(out, "-- Candidates -----------------------------\n");
raw_printf(out, "%s\n", zCand);
}
for(i=0; i<nQuery; i++){
const char *zSql = sqlite3_expert_report(p, i, EXPERT_REPORT_SQL);
const char *zIdx = sqlite3_expert_report(p, i, EXPERT_REPORT_INDEXES);
const char *zEQP = sqlite3_expert_report(p, i, EXPERT_REPORT_PLAN);
if( zIdx==0 ) zIdx = "(no new indexes)\n";
if( bVerbose ){
raw_printf(out, "-- Query %d --------------------------------\n",i+1);
raw_printf(out, "%s\n\n", zSql);
}
raw_printf(out, "%s\n", zIdx);
raw_printf(out, "%s\n", zEQP);
}
}
}
sqlite3_expert_destroy(p);
pState->expert.pExpert = 0;
return rc;
}
/*
** Implementation of ".expert" dot command.
*/
static int expertDotCommand(
ShellState *pState, /* Current shell tool state */
char **azArg, /* Array of arguments passed to dot command */
int nArg /* Number of entries in azArg[] */
){
int rc = SQLITE_OK;
char *zErr = 0;
int i;
int iSample = 0;
assert( pState->expert.pExpert==0 );
memset(&pState->expert, 0, sizeof(ExpertInfo));
for(i=1; rc==SQLITE_OK && i<nArg; i++){
char *z = azArg[i];
int n;
if( z[0]=='-' && z[1]=='-' ) z++;
n = strlen30(z);
if( n>=2 && 0==cli_strncmp(z, "-verbose", n) ){
pState->expert.bVerbose = 1;
}
else if( n>=2 && 0==cli_strncmp(z, "-sample", n) ){
if( i==(nArg-1) ){
raw_printf(stderr, "option requires an argument: %s\n", z);
rc = SQLITE_ERROR;
}else{
iSample = (int)integerValue(azArg[++i]);
if( iSample<0 || iSample>100 ){
raw_printf(stderr, "value out of range: %s\n", azArg[i]);
rc = SQLITE_ERROR;
}
}
}
else{
raw_printf(stderr, "unknown option: %s\n", z);
rc = SQLITE_ERROR;
}
}
if( rc==SQLITE_OK ){
pState->expert.pExpert = sqlite3_expert_new(pState->db, &zErr);
if( pState->expert.pExpert==0 ){
raw_printf(stderr, "sqlite3_expert_new: %s\n",
zErr ? zErr : "out of memory");
rc = SQLITE_ERROR;
}else{
sqlite3_expert_config(
pState->expert.pExpert, EXPERT_CONFIG_SAMPLE, iSample
);
}
}
sqlite3_free(zErr);
return rc;
}
#endif /* ifndef SQLITE_OMIT_VIRTUALTABLE */
/*
** Execute a statement or set of statements. Print
** any result rows/columns depending on the current mode
** set via the supplied callback.
**
** This is very similar to SQLite's built-in sqlite3_exec()
** function except it takes a slightly different callback
** and callback data argument.
*/
static int shell_exec(
ShellState *pArg, /* Pointer to ShellState */
const char *zSql, /* SQL to be evaluated */
char **pzErrMsg /* Error msg written here */
){
sqlite3_stmt *pStmt = NULL; /* Statement to execute. */
int rc = SQLITE_OK; /* Return Code */
int rc2;
const char *zLeftover; /* Tail of unprocessed SQL */
sqlite3 *db = pArg->db;
if( pzErrMsg ){
*pzErrMsg = NULL;
}
#ifndef SQLITE_OMIT_VIRTUALTABLE
if( pArg->expert.pExpert ){
rc = expertHandleSQL(pArg, zSql, pzErrMsg);
return expertFinish(pArg, (rc!=SQLITE_OK), pzErrMsg);
}
#endif
while( zSql[0] && (SQLITE_OK == rc) ){
static const char *zStmtSql;
rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, &zLeftover);
if( SQLITE_OK != rc ){
if( pzErrMsg ){
*pzErrMsg = save_err_msg(db, "in prepare", rc, zSql);
}
}else{
if( !pStmt ){
/* this happens for a comment or white-space */
zSql = zLeftover;
while( IsSpace(zSql[0]) ) zSql++;
continue;
}
zStmtSql = sqlite3_sql(pStmt);
if( zStmtSql==0 ) zStmtSql = "";
while( IsSpace(zStmtSql[0]) ) zStmtSql++;
/* save off the prepared statement handle and reset row count */
if( pArg ){
pArg->pStmt = pStmt;
pArg->cnt = 0;
}
/* Show the EXPLAIN QUERY PLAN if .eqp is on */
if( pArg && pArg->autoEQP && sqlite3_stmt_isexplain(pStmt)==0 ){
sqlite3_stmt *pExplain;
int triggerEQP = 0;
disable_debug_trace_modes();
sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, -1, &triggerEQP);
if( pArg->autoEQP>=AUTOEQP_trigger ){
sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, 1, 0);
}
pExplain = pStmt;
sqlite3_reset(pExplain);
rc = sqlite3_stmt_explain(pExplain, 2);
if( rc==SQLITE_OK ){
while( sqlite3_step(pExplain)==SQLITE_ROW ){
const char *zEQPLine = (const char*)sqlite3_column_text(pExplain,3);
int iEqpId = sqlite3_column_int(pExplain, 0);
int iParentId = sqlite3_column_int(pExplain, 1);
if( zEQPLine==0 ) zEQPLine = "";
if( zEQPLine[0]=='-' ) eqp_render(pArg, 0);
eqp_append(pArg, iEqpId, iParentId, zEQPLine);
}
eqp_render(pArg, 0);
}
if( pArg->autoEQP>=AUTOEQP_full ){
/* Also do an EXPLAIN for ".eqp full" mode */
sqlite3_reset(pExplain);
rc = sqlite3_stmt_explain(pExplain, 1);
if( rc==SQLITE_OK ){
pArg->cMode = MODE_Explain;
assert( sqlite3_stmt_isexplain(pExplain)==1 );
explain_data_prepare(pArg, pExplain);
exec_prepared_stmt(pArg, pExplain);
explain_data_delete(pArg);
}
}
if( pArg->autoEQP>=AUTOEQP_trigger && triggerEQP==0 ){
sqlite3_db_config(db, SQLITE_DBCONFIG_TRIGGER_EQP, 0, 0);
}
sqlite3_reset(pStmt);
sqlite3_stmt_explain(pStmt, 0);
restore_debug_trace_modes();
}
if( pArg ){
int bIsExplain = (sqlite3_stmt_isexplain(pStmt)==1);
pArg->cMode = pArg->mode;
if( pArg->autoExplain ){
if( bIsExplain ){
pArg->cMode = MODE_Explain;
}
if( sqlite3_stmt_isexplain(pStmt)==2 ){
pArg->cMode = MODE_EQP;
}
}
/* If the shell is currently in ".explain" mode, gather the extra
** data required to add indents to the output.*/
if( pArg->cMode==MODE_Explain && bIsExplain ){
explain_data_prepare(pArg, pStmt);
}
}
bind_prepared_stmt(pArg, pStmt);
exec_prepared_stmt(pArg, pStmt);
explain_data_delete(pArg);
eqp_render(pArg, 0);
/* print usage stats if stats on */
if( pArg && pArg->statsOn ){
display_stats(db, pArg, 0);
}
/* print loop-counters if required */
if( pArg && pArg->scanstatsOn ){
display_scanstats(db, pArg);
}
/* Finalize the statement just executed. If this fails, save a
** copy of the error message. Otherwise, set zSql to point to the
** next statement to execute. */
rc2 = sqlite3_finalize(pStmt);
if( rc!=SQLITE_NOMEM ) rc = rc2;
if( rc==SQLITE_OK ){
zSql = zLeftover;
while( IsSpace(zSql[0]) ) zSql++;
}else if( pzErrMsg ){
*pzErrMsg = save_err_msg(db, "stepping", rc, 0);
}
/* clear saved stmt handle */
if( pArg ){
pArg->pStmt = NULL;
}
}
} /* end while */
return rc;
}
/*
** Release memory previously allocated by tableColumnList().
*/
static void freeColumnList(char **azCol){
int i;
for(i=1; azCol[i]; i++){
sqlite3_free(azCol[i]);
}
/* azCol[0] is a static string */
sqlite3_free(azCol);
}
/*
** Return a list of pointers to strings which are the names of all
** columns in table zTab. The memory to hold the names is dynamically
** allocated and must be released by the caller using a subsequent call
** to freeColumnList().
**
** The azCol[0] entry is usually NULL. However, if zTab contains a rowid
** value that needs to be preserved, then azCol[0] is filled in with the
** name of the rowid column.
**
** The first regular column in the table is azCol[1]. The list is terminated
** by an entry with azCol[i]==0.
*/
static char **tableColumnList(ShellState *p, const char *zTab){
char **azCol = 0;
sqlite3_stmt *pStmt;
char *zSql;
int nCol = 0;
int nAlloc = 0;
int nPK = 0; /* Number of PRIMARY KEY columns seen */
int isIPK = 0; /* True if one PRIMARY KEY column of type INTEGER */
int preserveRowid = ShellHasFlag(p, SHFLG_PreserveRowid);
int rc;
zSql = sqlite3_mprintf("PRAGMA table_info=%Q", zTab);
shell_check_oom(zSql);
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( rc ) return 0;
while( sqlite3_step(pStmt)==SQLITE_ROW ){
if( nCol>=nAlloc-2 ){
nAlloc = nAlloc*2 + nCol + 10;
azCol = sqlite3_realloc(azCol, nAlloc*sizeof(azCol[0]));
shell_check_oom(azCol);
}
azCol[++nCol] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 1));
shell_check_oom(azCol[nCol]);
if( sqlite3_column_int(pStmt, 5) ){
nPK++;
if( nPK==1
&& sqlite3_stricmp((const char*)sqlite3_column_text(pStmt,2),
"INTEGER")==0
){
isIPK = 1;
}else{
isIPK = 0;
}
}
}
sqlite3_finalize(pStmt);
if( azCol==0 ) return 0;
azCol[0] = 0;
azCol[nCol+1] = 0;
/* The decision of whether or not a rowid really needs to be preserved
** is tricky. We never need to preserve a rowid for a WITHOUT ROWID table
** or a table with an INTEGER PRIMARY KEY. We are unable to preserve
** rowids on tables where the rowid is inaccessible because there are other
** columns in the table named "rowid", "_rowid_", and "oid".
*/
if( preserveRowid && isIPK ){
/* If a single PRIMARY KEY column with type INTEGER was seen, then it
** might be an alias for the ROWID. But it might also be a WITHOUT ROWID
** table or a INTEGER PRIMARY KEY DESC column, neither of which are
** ROWID aliases. To distinguish these cases, check to see if
** there is a "pk" entry in "PRAGMA index_list". There will be
** no "pk" index if the PRIMARY KEY really is an alias for the ROWID.
*/
zSql = sqlite3_mprintf("SELECT 1 FROM pragma_index_list(%Q)"
" WHERE origin='pk'", zTab);
shell_check_oom(zSql);
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( rc ){
freeColumnList(azCol);
return 0;
}
rc = sqlite3_step(pStmt);
sqlite3_finalize(pStmt);
preserveRowid = rc==SQLITE_ROW;
}
if( preserveRowid ){
/* Only preserve the rowid if we can find a name to use for the
** rowid */
static char *azRowid[] = { "rowid", "_rowid_", "oid" };
int i, j;
for(j=0; j<3; j++){
for(i=1; i<=nCol; i++){
if( sqlite3_stricmp(azRowid[j],azCol[i])==0 ) break;
}
if( i>nCol ){
/* At this point, we know that azRowid[j] is not the name of any
** ordinary column in the table. Verify that azRowid[j] is a valid
** name for the rowid before adding it to azCol[0]. WITHOUT ROWID
** tables will fail this last check */
rc = sqlite3_table_column_metadata(p->db,0,zTab,azRowid[j],0,0,0,0,0);
if( rc==SQLITE_OK ) azCol[0] = azRowid[j];
break;
}
}
}
return azCol;
}
/*
** Toggle the reverse_unordered_selects setting.
*/
static void toggleSelectOrder(sqlite3 *db){
sqlite3_stmt *pStmt = 0;
int iSetting = 0;
char zStmt[100];
sqlite3_prepare_v2(db, "PRAGMA reverse_unordered_selects", -1, &pStmt, 0);
if( sqlite3_step(pStmt)==SQLITE_ROW ){
iSetting = sqlite3_column_int(pStmt, 0);
}
sqlite3_finalize(pStmt);
sqlite3_snprintf(sizeof(zStmt), zStmt,
"PRAGMA reverse_unordered_selects(%d)", !iSetting);
sqlite3_exec(db, zStmt, 0, 0, 0);
}
/*
** This is a different callback routine used for dumping the database.
** Each row received by this callback consists of a table name,
** the table type ("index" or "table") and SQL to create the table.
** This routine should print text sufficient to recreate the table.
*/
static int dump_callback(void *pArg, int nArg, char **azArg, char **azNotUsed){
int rc;
const char *zTable;
const char *zType;
const char *zSql;
ShellState *p = (ShellState *)pArg;
int dataOnly;
int noSys;
UNUSED_PARAMETER(azNotUsed);
if( nArg!=3 || azArg==0 ) return 0;
zTable = azArg[0];
zType = azArg[1];
zSql = azArg[2];
if( zTable==0 ) return 0;
if( zType==0 ) return 0;
dataOnly = (p->shellFlgs & SHFLG_DumpDataOnly)!=0;
noSys = (p->shellFlgs & SHFLG_DumpNoSys)!=0;
if( cli_strcmp(zTable, "sqlite_sequence")==0 && !noSys ){
if( !dataOnly ) raw_printf(p->out, "DELETE FROM sqlite_sequence;\n");
}else if( sqlite3_strglob("sqlite_stat?", zTable)==0 && !noSys ){
if( !dataOnly ) raw_printf(p->out, "ANALYZE sqlite_schema;\n");
}else if( cli_strncmp(zTable, "sqlite_", 7)==0 ){
return 0;
}else if( dataOnly ){
/* no-op */
}else if( cli_strncmp(zSql, "CREATE VIRTUAL TABLE", 20)==0 ){
char *zIns;
if( !p->writableSchema ){
raw_printf(p->out, "PRAGMA writable_schema=ON;\n");
p->writableSchema = 1;
}
zIns = sqlite3_mprintf(
"INSERT INTO sqlite_schema(type,name,tbl_name,rootpage,sql)"
"VALUES('table','%q','%q',0,'%q');",
zTable, zTable, zSql);
shell_check_oom(zIns);
utf8_printf(p->out, "%s\n", zIns);
sqlite3_free(zIns);
return 0;
}else{
printSchemaLine(p->out, zSql, ";\n");
}
if( cli_strcmp(zType, "table")==0 ){
ShellText sSelect;
ShellText sTable;
char **azCol;
int i;
char *savedDestTable;
int savedMode;
azCol = tableColumnList(p, zTable);
if( azCol==0 ){
p->nErr++;
return 0;
}
/* Always quote the table name, even if it appears to be pure ascii,
** in case it is a keyword. Ex: INSERT INTO "table" ... */
initText(&sTable);
appendText(&sTable, zTable, quoteChar(zTable));
/* If preserving the rowid, add a column list after the table name.
** In other words: "INSERT INTO tab(rowid,a,b,c,...) VALUES(...)"
** instead of the usual "INSERT INTO tab VALUES(...)".
*/
if( azCol[0] ){
appendText(&sTable, "(", 0);
appendText(&sTable, azCol[0], 0);
for(i=1; azCol[i]; i++){
appendText(&sTable, ",", 0);
appendText(&sTable, azCol[i], quoteChar(azCol[i]));
}
appendText(&sTable, ")", 0);
}
/* Build an appropriate SELECT statement */
initText(&sSelect);
appendText(&sSelect, "SELECT ", 0);
if( azCol[0] ){
appendText(&sSelect, azCol[0], 0);
appendText(&sSelect, ",", 0);
}
for(i=1; azCol[i]; i++){
appendText(&sSelect, azCol[i], quoteChar(azCol[i]));
if( azCol[i+1] ){
appendText(&sSelect, ",", 0);
}
}
freeColumnList(azCol);
appendText(&sSelect, " FROM ", 0);
appendText(&sSelect, zTable, quoteChar(zTable));
savedDestTable = p->zDestTable;
savedMode = p->mode;
p->zDestTable = sTable.z;
p->mode = p->cMode = MODE_Insert;
rc = shell_exec(p, sSelect.z, 0);
if( (rc&0xff)==SQLITE_CORRUPT ){
raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n");
toggleSelectOrder(p->db);
shell_exec(p, sSelect.z, 0);
toggleSelectOrder(p->db);
}
p->zDestTable = savedDestTable;
p->mode = savedMode;
freeText(&sTable);
freeText(&sSelect);
if( rc ) p->nErr++;
}
return 0;
}
/*
** Run zQuery. Use dump_callback() as the callback routine so that
** the contents of the query are output as SQL statements.
**
** If we get a SQLITE_CORRUPT error, rerun the query after appending
** "ORDER BY rowid DESC" to the end.
*/
static int run_schema_dump_query(
ShellState *p,
const char *zQuery
){
int rc;
char *zErr = 0;
rc = sqlite3_exec(p->db, zQuery, dump_callback, p, &zErr);
if( rc==SQLITE_CORRUPT ){
char *zQ2;
int len = strlen30(zQuery);
raw_printf(p->out, "/****** CORRUPTION ERROR *******/\n");
if( zErr ){
utf8_printf(p->out, "/****** %s ******/\n", zErr);
sqlite3_free(zErr);
zErr = 0;
}
zQ2 = malloc( len+100 );
if( zQ2==0 ) return rc;
sqlite3_snprintf(len+100, zQ2, "%s ORDER BY rowid DESC", zQuery);
rc = sqlite3_exec(p->db, zQ2, dump_callback, p, &zErr);
if( rc ){
utf8_printf(p->out, "/****** ERROR: %s ******/\n", zErr);
}else{
rc = SQLITE_CORRUPT;
}
sqlite3_free(zErr);
free(zQ2);
}
return rc;
}
/*
** Text of help messages.
**
** The help text for each individual command begins with a line that starts
** with ".". Subsequent lines are supplemental information.
**
** There must be two or more spaces between the end of the command and the
** start of the description of what that command does.
*/
static const char *(azHelp[]) = {
#if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE) \
&& !defined(SQLITE_SHELL_FIDDLE)
".archive ... Manage SQL archives",
" Each command must have exactly one of the following options:",
" -c, --create Create a new archive",
" -u, --update Add or update files with changed mtime",
" -i, --insert Like -u but always add even if unchanged",
" -r, --remove Remove files from archive",
" -t, --list List contents of archive",
" -x, --extract Extract files from archive",
" Optional arguments:",
" -v, --verbose Print each filename as it is processed",
" -f FILE, --file FILE Use archive FILE (default is current db)",
" -a FILE, --append FILE Open FILE using the apndvfs VFS",
" -C DIR, --directory DIR Read/extract files from directory DIR",
" -g, --glob Use glob matching for names in archive",
" -n, --dryrun Show the SQL that would have occurred",
" Examples:",
" .ar -cf ARCHIVE foo bar # Create ARCHIVE from files foo and bar",
" .ar -tf ARCHIVE # List members of ARCHIVE",
" .ar -xvf ARCHIVE # Verbosely extract files from ARCHIVE",
" See also:",
" http://sqlite.org/cli.html#sqlite_archive_support",
#endif
#ifndef SQLITE_OMIT_AUTHORIZATION
".auth ON|OFF Show authorizer callbacks",
#endif
#ifndef SQLITE_SHELL_FIDDLE
".backup ?DB? FILE Backup DB (default \"main\") to FILE",
" Options:",
" --append Use the appendvfs",
" --async Write to FILE without journal and fsync()",
#endif
".bail on|off Stop after hitting an error. Default OFF",
#ifndef SQLITE_SHELL_FIDDLE
".cd DIRECTORY Change the working directory to DIRECTORY",
#endif
".changes on|off Show number of rows changed by SQL",
#ifndef SQLITE_SHELL_FIDDLE
".check GLOB Fail if output since .testcase does not match",
".clone NEWDB Clone data into NEWDB from the existing database",
#endif
".connection [close] [#] Open or close an auxiliary database connection",
#if defined(_WIN32) || defined(WIN32)
".crnl on|off Translate \\n to \\r\\n. Default ON",
#endif
".databases List names and files of attached databases",
".dbconfig ?op? ?val? List or change sqlite3_db_config() options",
#if SQLITE_SHELL_HAVE_RECOVER
".dbinfo ?DB? Show status information about the database",
#endif
".dump ?OBJECTS? Render database content as SQL",
" Options:",
" --data-only Output only INSERT statements",
" --newlines Allow unescaped newline characters in output",
" --nosys Omit system tables (ex: \"sqlite_stat1\")",
" --preserve-rowids Include ROWID values in the output",
" OBJECTS is a LIKE pattern for tables, indexes, triggers or views to dump",
" Additional LIKE patterns can be given in subsequent arguments",
".echo on|off Turn command echo on or off",
".eqp on|off|full|... Enable or disable automatic EXPLAIN QUERY PLAN",
" Other Modes:",
#ifdef SQLITE_DEBUG
" test Show raw EXPLAIN QUERY PLAN output",
" trace Like \"full\" but enable \"PRAGMA vdbe_trace\"",
#endif
" trigger Like \"full\" but also show trigger bytecode",
#ifndef SQLITE_SHELL_FIDDLE
".excel Display the output of next command in spreadsheet",
" --bom Put a UTF8 byte-order mark on intermediate file",
#endif
#ifndef SQLITE_SHELL_FIDDLE
".exit ?CODE? Exit this program with return-code CODE",
#endif
".expert EXPERIMENTAL. Suggest indexes for queries",
".explain ?on|off|auto? Change the EXPLAIN formatting mode. Default: auto",
".filectrl CMD ... Run various sqlite3_file_control() operations",
" --schema SCHEMA Use SCHEMA instead of \"main\"",
" --help Show CMD details",
".fullschema ?--indent? Show schema and the content of sqlite_stat tables",
".headers on|off Turn display of headers on or off",
".help ?-all? ?PATTERN? Show help text for PATTERN",
#ifndef SQLITE_SHELL_FIDDLE
".import FILE TABLE Import data from FILE into TABLE",
" Options:",
" --ascii Use \\037 and \\036 as column and row separators",
" --csv Use , and \\n as column and row separators",
" --skip N Skip the first N rows of input",
" --schema S Target table to be S.TABLE",
" -v \"Verbose\" - increase auxiliary output",
" Notes:",
" * If TABLE does not exist, it is created. The first row of input",
" determines the column names.",
" * If neither --csv or --ascii are used, the input mode is derived",
" from the \".mode\" output mode",
" * If FILE begins with \"|\" then it is a command that generates the",
" input text.",
#endif
#ifndef SQLITE_OMIT_TEST_CONTROL
",imposter INDEX TABLE Create imposter table TABLE on index INDEX",
#endif
".indexes ?TABLE? Show names of indexes",
" If TABLE is specified, only show indexes for",
" tables matching TABLE using the LIKE operator.",
#ifdef SQLITE_ENABLE_IOTRACE
",iotrace FILE Enable I/O diagnostic logging to FILE",
#endif
".limit ?LIMIT? ?VAL? Display or change the value of an SQLITE_LIMIT",
".lint OPTIONS Report potential schema issues.",
" Options:",
" fkey-indexes Find missing foreign key indexes",
#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_FIDDLE)
".load FILE ?ENTRY? Load an extension library",
#endif
#if !defined(SQLITE_SHELL_FIDDLE)
".log FILE|on|off Turn logging on or off. FILE can be stderr/stdout",
#else
".log on|off Turn logging on or off.",
#endif
".mode MODE ?OPTIONS? Set output mode",
" MODE is one of:",
" ascii Columns/rows delimited by 0x1F and 0x1E",
" box Tables using unicode box-drawing characters",
" csv Comma-separated values",
" column Output in columns. (See .width)",
" html HTML <table> code",
" insert SQL insert statements for TABLE",
" json Results in a JSON array",
" line One value per line",
" list Values delimited by \"|\"",
" markdown Markdown table format",
" qbox Shorthand for \"box --wrap 60 --quote\"",
" quote Escape answers as for SQL",
" table ASCII-art table",
" tabs Tab-separated values",
" tcl TCL list elements",
" OPTIONS: (for columnar modes or insert mode):",
" --wrap N Wrap output lines to no longer than N characters",
" --wordwrap B Wrap or not at word boundaries per B (on/off)",
" --ww Shorthand for \"--wordwrap 1\"",
" --quote Quote output text as SQL literals",
" --noquote Do not quote output text",
" TABLE The name of SQL table used for \"insert\" mode",
#ifndef SQLITE_SHELL_FIDDLE
".nonce STRING Suspend safe mode for one command if nonce matches",
#endif
".nullvalue STRING Use STRING in place of NULL values",
#ifndef SQLITE_SHELL_FIDDLE
".once ?OPTIONS? ?FILE? Output for the next SQL command only to FILE",
" If FILE begins with '|' then open as a pipe",
" --bom Put a UTF8 byte-order mark at the beginning",
" -e Send output to the system text editor",
" -x Send output as CSV to a spreadsheet (same as \".excel\")",
/* Note that .open is (partially) available in WASM builds but is
** currently only intended to be used by the fiddle tool, not
** end users, so is "undocumented." */
".open ?OPTIONS? ?FILE? Close existing database and reopen FILE",
" Options:",
" --append Use appendvfs to append database to the end of FILE",
#endif
#ifndef SQLITE_OMIT_DESERIALIZE
" --deserialize Load into memory using sqlite3_deserialize()",
" --hexdb Load the output of \"dbtotxt\" as an in-memory db",
" --maxsize N Maximum size for --hexdb or --deserialized database",
#endif
" --new Initialize FILE to an empty database",
" --nofollow Do not follow symbolic links",
" --readonly Open FILE readonly",
" --zip FILE is a ZIP archive",
#ifndef SQLITE_SHELL_FIDDLE
".output ?FILE? Send output to FILE or stdout if FILE is omitted",
" If FILE begins with '|' then open it as a pipe.",
" Options:",
" --bom Prefix output with a UTF8 byte-order mark",
" -e Send output to the system text editor",
" -x Send output as CSV to a spreadsheet",
#endif
".parameter CMD ... Manage SQL parameter bindings",
" clear Erase all bindings",
" init Initialize the TEMP table that holds bindings",
" list List the current parameter bindings",
" set PARAMETER VALUE Given SQL parameter PARAMETER a value of VALUE",
" PARAMETER should start with one of: $ : @ ?",
" unset PARAMETER Remove PARAMETER from the binding table",
".print STRING... Print literal STRING",
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
".progress N Invoke progress handler after every N opcodes",
" --limit N Interrupt after N progress callbacks",
" --once Do no more than one progress interrupt",
" --quiet|-q No output except at interrupts",
" --reset Reset the count for each input and interrupt",
#endif
".prompt MAIN CONTINUE Replace the standard prompts",
#ifndef SQLITE_SHELL_FIDDLE
".quit Stop interpreting input stream, exit if primary.",
".read FILE Read input from FILE or command output",
" If FILE begins with \"|\", it is a command that generates the input.",
#endif
#if SQLITE_SHELL_HAVE_RECOVER
".recover Recover as much data as possible from corrupt db.",
" --ignore-freelist Ignore pages that appear to be on db freelist",
" --lost-and-found TABLE Alternative name for the lost-and-found table",
" --no-rowids Do not attempt to recover rowid values",
" that are not also INTEGER PRIMARY KEYs",
#endif
#ifndef SQLITE_SHELL_FIDDLE
".restore ?DB? FILE Restore content of DB (default \"main\") from FILE",
".save ?OPTIONS? FILE Write database to FILE (an alias for .backup ...)",
#endif
".scanstats on|off|est Turn sqlite3_stmt_scanstatus() metrics on or off",
".schema ?PATTERN? Show the CREATE statements matching PATTERN",
" Options:",
" --indent Try to pretty-print the schema",
" --nosys Omit objects whose names start with \"sqlite_\"",
",selftest ?OPTIONS? Run tests defined in the SELFTEST table",
" Options:",
" --init Create a new SELFTEST table",
" -v Verbose output",
".separator COL ?ROW? Change the column and row separators",
#if defined(SQLITE_ENABLE_SESSION)
".session ?NAME? CMD ... Create or control sessions",
" Subcommands:",
" attach TABLE Attach TABLE",
" changeset FILE Write a changeset into FILE",
" close Close one session",
" enable ?BOOLEAN? Set or query the enable bit",
" filter GLOB... Reject tables matching GLOBs",
" indirect ?BOOLEAN? Mark or query the indirect status",
" isempty Query whether the session is empty",
" list List currently open session names",
" open DB NAME Open a new session on DB",
" patchset FILE Write a patchset into FILE",
" If ?NAME? is omitted, the first defined session is used.",
#endif
".sha3sum ... Compute a SHA3 hash of database content",
" Options:",
" --schema Also hash the sqlite_schema table",
" --sha3-224 Use the sha3-224 algorithm",
" --sha3-256 Use the sha3-256 algorithm (default)",
" --sha3-384 Use the sha3-384 algorithm",
" --sha3-512 Use the sha3-512 algorithm",
" Any other argument is a LIKE pattern for tables to hash",
#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE)
".shell CMD ARGS... Run CMD ARGS... in a system shell",
#endif
".show Show the current values for various settings",
".stats ?ARG? Show stats or turn stats on or off",
" off Turn off automatic stat display",
" on Turn on automatic stat display",
" stmt Show statement stats",
" vmstep Show the virtual machine step count only",
#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE)
".system CMD ARGS... Run CMD ARGS... in a system shell",
#endif
".tables ?TABLE? List names of tables matching LIKE pattern TABLE",
#ifndef SQLITE_SHELL_FIDDLE
",testcase NAME Begin redirecting output to 'testcase-out.txt'",
#endif
",testctrl CMD ... Run various sqlite3_test_control() operations",
" Run \".testctrl\" with no arguments for details",
".timeout MS Try opening locked tables for MS milliseconds",
".timer on|off Turn SQL timer on or off",
#ifndef SQLITE_OMIT_TRACE
".trace ?OPTIONS? Output each SQL statement as it is run",
" FILE Send output to FILE",
" stdout Send output to stdout",
" stderr Send output to stderr",
" off Disable tracing",
" --expanded Expand query parameters",
#ifdef SQLITE_ENABLE_NORMALIZE
" --normalized Normal the SQL statements",
#endif
" --plain Show SQL as it is input",
" --stmt Trace statement execution (SQLITE_TRACE_STMT)",
" --profile Profile statements (SQLITE_TRACE_PROFILE)",
" --row Trace each row (SQLITE_TRACE_ROW)",
" --close Trace connection close (SQLITE_TRACE_CLOSE)",
#endif /* SQLITE_OMIT_TRACE */
#ifdef SQLITE_DEBUG
".unmodule NAME ... Unregister virtual table modules",
" --allexcept Unregister everything except those named",
#endif
".version Show source, library and compiler versions",
".vfsinfo ?AUX? Information about the top-level VFS",
".vfslist List all available VFSes",
".vfsname ?AUX? Print the name of the VFS stack",
".width NUM1 NUM2 ... Set minimum column widths for columnar output",
" Negative values right-justify",
};
/*
** Output help text.
**
** zPattern describes the set of commands for which help text is provided.
** If zPattern is NULL, then show all commands, but only give a one-line
** description of each.
**
** Return the number of matches.
*/
static int showHelp(FILE *out, const char *zPattern){
int i = 0;
int j = 0;
int n = 0;
char *zPat;
if( zPattern==0
|| zPattern[0]=='0'
|| cli_strcmp(zPattern,"-a")==0
|| cli_strcmp(zPattern,"-all")==0
|| cli_strcmp(zPattern,"--all")==0
){
enum HelpWanted { HW_NoCull = 0, HW_SummaryOnly = 1, HW_Undoc = 2 };
enum HelpHave { HH_Undoc = 2, HH_Summary = 1, HH_More = 0 };
/* Show all or most commands
** *zPattern==0 => summary of documented commands only
** *zPattern=='0' => whole help for undocumented commands
** Otherwise => whole help for documented commands
*/
enum HelpWanted hw = HW_SummaryOnly;
enum HelpHave hh = HH_More;
if( zPattern!=0 ){
hw = (*zPattern=='0')? HW_NoCull|HW_Undoc : HW_NoCull;
}
for(i=0; i<ArraySize(azHelp); i++){
switch( azHelp[i][0] ){
case ',':
hh = HH_Summary|HH_Undoc;
break;
case '.':
hh = HH_Summary;
break;
default:
hh &= ~HH_Summary;
break;
}
if( ((hw^hh)&HH_Undoc)==0 ){
if( (hh&HH_Summary)!=0 ){
utf8_printf(out, ".%s\n", azHelp[i]+1);
++n;
}else if( (hw&HW_SummaryOnly)==0 ){
utf8_printf(out, "%s\n", azHelp[i]);
}
}
}
}else{
/* Seek documented commands for which zPattern is an exact prefix */
zPat = sqlite3_mprintf(".%s*", zPattern);
shell_check_oom(zPat);
for(i=0; i<ArraySize(azHelp); i++){
if( sqlite3_strglob(zPat, azHelp[i])==0 ){
utf8_printf(out, "%s\n", azHelp[i]);
j = i+1;
n++;
}
}
sqlite3_free(zPat);
if( n ){
if( n==1 ){
/* when zPattern is a prefix of exactly one command, then include
** the details of that command, which should begin at offset j */
while( j<ArraySize(azHelp)-1 && azHelp[j][0]==' ' ){
utf8_printf(out, "%s\n", azHelp[j]);
j++;
}
}
return n;
}
/* Look for documented commands that contain zPattern anywhere.
** Show complete text of all documented commands that match. */
zPat = sqlite3_mprintf("%%%s%%", zPattern);
shell_check_oom(zPat);
for(i=0; i<ArraySize(azHelp); i++){
if( azHelp[i][0]==',' ){
while( i<ArraySize(azHelp)-1 && azHelp[i+1][0]==' ' ) ++i;
continue;
}
if( azHelp[i][0]=='.' ) j = i;
if( sqlite3_strlike(zPat, azHelp[i], 0)==0 ){
utf8_printf(out, "%s\n", azHelp[j]);
while( j<ArraySize(azHelp)-1 && azHelp[j+1][0]==' ' ){
j++;
utf8_printf(out, "%s\n", azHelp[j]);
}
i = j;
n++;
}
}
sqlite3_free(zPat);
}
return n;
}
/* Forward reference */
static int process_input(ShellState *p);
/*
** Read the content of file zName into memory obtained from sqlite3_malloc64()
** and return a pointer to the buffer. The caller is responsible for freeing
** the memory.
**
** If parameter pnByte is not NULL, (*pnByte) is set to the number of bytes
** read.
**
** For convenience, a nul-terminator byte is always appended to the data read
** from the file before the buffer is returned. This byte is not included in
** the final value of (*pnByte), if applicable.
**
** NULL is returned if any error is encountered. The final value of *pnByte
** is undefined in this case.
*/
static char *readFile(const char *zName, int *pnByte){
FILE *in = fopen(zName, "rb");
long nIn;
size_t nRead;
char *pBuf;
int rc;
if( in==0 ) return 0;
rc = fseek(in, 0, SEEK_END);
if( rc!=0 ){
raw_printf(stderr, "Error: '%s' not seekable\n", zName);
fclose(in);
return 0;
}
nIn = ftell(in);
rewind(in);
pBuf = sqlite3_malloc64( nIn+1 );
if( pBuf==0 ){
raw_printf(stderr, "Error: out of memory\n");
fclose(in);
return 0;
}
nRead = fread(pBuf, nIn, 1, in);
fclose(in);
if( nRead!=1 ){
sqlite3_free(pBuf);
raw_printf(stderr, "Error: cannot read '%s'\n", zName);
return 0;
}
pBuf[nIn] = 0;
if( pnByte ) *pnByte = nIn;
return pBuf;
}
#if defined(SQLITE_ENABLE_SESSION)
/*
** Close a single OpenSession object and release all of its associated
** resources.
*/
static void session_close(OpenSession *pSession){
int i;
sqlite3session_delete(pSession->p);
sqlite3_free(pSession->zName);
for(i=0; i<pSession->nFilter; i++){
sqlite3_free(pSession->azFilter[i]);
}
sqlite3_free(pSession->azFilter);
memset(pSession, 0, sizeof(OpenSession));
}
#endif
/*
** Close all OpenSession objects and release all associated resources.
*/
#if defined(SQLITE_ENABLE_SESSION)
static void session_close_all(ShellState *p, int i){
int j;
struct AuxDb *pAuxDb = i<0 ? p->pAuxDb : &p->aAuxDb[i];
for(j=0; j<pAuxDb->nSession; j++){
session_close(&pAuxDb->aSession[j]);
}
pAuxDb->nSession = 0;
}
#else
# define session_close_all(X,Y)
#endif
/*
** Implementation of the xFilter function for an open session. Omit
** any tables named by ".session filter" but let all other table through.
*/
#if defined(SQLITE_ENABLE_SESSION)
static int session_filter(void *pCtx, const char *zTab){
OpenSession *pSession = (OpenSession*)pCtx;
int i;
for(i=0; i<pSession->nFilter; i++){
if( sqlite3_strglob(pSession->azFilter[i], zTab)==0 ) return 0;
}
return 1;
}
#endif
/*
** Try to deduce the type of file for zName based on its content. Return
** one of the SHELL_OPEN_* constants.
**
** If the file does not exist or is empty but its name looks like a ZIP
** archive and the dfltZip flag is true, then assume it is a ZIP archive.
** Otherwise, assume an ordinary database regardless of the filename if
** the type cannot be determined from content.
*/
int deduceDatabaseType(const char *zName, int dfltZip){
FILE *f = fopen(zName, "rb");
size_t n;
int rc = SHELL_OPEN_UNSPEC;
char zBuf[100];
if( f==0 ){
if( dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){
return SHELL_OPEN_ZIPFILE;
}else{
return SHELL_OPEN_NORMAL;
}
}
n = fread(zBuf, 16, 1, f);
if( n==1 && memcmp(zBuf, "SQLite format 3", 16)==0 ){
fclose(f);
return SHELL_OPEN_NORMAL;
}
fseek(f, -25, SEEK_END);
n = fread(zBuf, 25, 1, f);
if( n==1 && memcmp(zBuf, "Start-Of-SQLite3-", 17)==0 ){
rc = SHELL_OPEN_APPENDVFS;
}else{
fseek(f, -22, SEEK_END);
n = fread(zBuf, 22, 1, f);
if( n==1 && zBuf[0]==0x50 && zBuf[1]==0x4b && zBuf[2]==0x05
&& zBuf[3]==0x06 ){
rc = SHELL_OPEN_ZIPFILE;
}else if( n==0 && dfltZip && sqlite3_strlike("%.zip",zName,0)==0 ){
rc = SHELL_OPEN_ZIPFILE;
}
}
fclose(f);
return rc;
}
#ifndef SQLITE_OMIT_DESERIALIZE
/*
** Reconstruct an in-memory database using the output from the "dbtotxt"
** program. Read content from the file in p->aAuxDb[].zDbFilename.
** If p->aAuxDb[].zDbFilename is 0, then read from standard input.
*/
static unsigned char *readHexDb(ShellState *p, int *pnData){
unsigned char *a = 0;
int nLine;
int n = 0;
int pgsz = 0;
int iOffset = 0;
int j, k;
int rc;
FILE *in;
const char *zDbFilename = p->pAuxDb->zDbFilename;
unsigned int x[16];
char zLine[1000];
if( zDbFilename ){
in = fopen(zDbFilename, "r");
if( in==0 ){
utf8_printf(stderr, "cannot open \"%s\" for reading\n", zDbFilename);
return 0;
}
nLine = 0;
}else{
in = p->in;
nLine = p->lineno;
if( in==0 ) in = stdin;
}
*pnData = 0;
nLine++;
if( fgets(zLine, sizeof(zLine), in)==0 ) goto readHexDb_error;
rc = sscanf(zLine, "| size %d pagesize %d", &n, &pgsz);
if( rc!=2 ) goto readHexDb_error;
if( n<0 ) goto readHexDb_error;
if( pgsz<512 || pgsz>65536 || (pgsz&(pgsz-1))!=0 ) goto readHexDb_error;
n = (n+pgsz-1)&~(pgsz-1); /* Round n up to the next multiple of pgsz */
a = sqlite3_malloc( n ? n : 1 );
shell_check_oom(a);
memset(a, 0, n);
if( pgsz<512 || pgsz>65536 || (pgsz & (pgsz-1))!=0 ){
utf8_printf(stderr, "invalid pagesize\n");
goto readHexDb_error;
}
for(nLine++; fgets(zLine, sizeof(zLine), in)!=0; nLine++){
rc = sscanf(zLine, "| page %d offset %d", &j, &k);
if( rc==2 ){
iOffset = k;
continue;
}
if( cli_strncmp(zLine, "| end ", 6)==0 ){
break;
}
rc = sscanf(zLine,"| %d: %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x",
&j, &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7],
&x[8], &x[9], &x[10], &x[11], &x[12], &x[13], &x[14], &x[15]);
if( rc==17 ){
k = iOffset+j;
if( k+16<=n && k>=0 ){
int ii;
for(ii=0; ii<16; ii++) a[k+ii] = x[ii]&0xff;
}
}
}
*pnData = n;
if( in!=p->in ){
fclose(in);
}else{
p->lineno = nLine;
}
return a;
readHexDb_error:
if( in!=p->in ){
fclose(in);
}else{
while( fgets(zLine, sizeof(zLine), p->in)!=0 ){
nLine++;
if(cli_strncmp(zLine, "| end ", 6)==0 ) break;
}
p->lineno = nLine;
}
sqlite3_free(a);
utf8_printf(stderr,"Error on line %d of --hexdb input\n", nLine);
return 0;
}
#endif /* SQLITE_OMIT_DESERIALIZE */
/*
** Scalar function "usleep(X)" invokes sqlite3_sleep(X) and returns X.
*/
static void shellUSleepFunc(
sqlite3_context *context,
int argcUnused,
sqlite3_value **argv
){
int sleep = sqlite3_value_int(argv[0]);
(void)argcUnused;
sqlite3_sleep(sleep/1000);
sqlite3_result_int(context, sleep);
}
/* Flags for open_db().
**
** The default behavior of open_db() is to exit(1) if the database fails to
** open. The OPEN_DB_KEEPALIVE flag changes that so that it prints an error
** but still returns without calling exit.
**
** The OPEN_DB_ZIPFILE flag causes open_db() to prefer to open files as a
** ZIP archive if the file does not exist or is empty and its name matches
** the *.zip pattern.
*/
#define OPEN_DB_KEEPALIVE 0x001 /* Return after error if true */
#define OPEN_DB_ZIPFILE 0x002 /* Open as ZIP if name matches *.zip */
/*
** Make sure the database is open. If it is not, then open it. If
** the database fails to open, print an error message and exit.
*/
static void open_db(ShellState *p, int openFlags){
if( p->db==0 ){
const char *zDbFilename = p->pAuxDb->zDbFilename;
if( p->openMode==SHELL_OPEN_UNSPEC ){
if( zDbFilename==0 || zDbFilename[0]==0 ){
p->openMode = SHELL_OPEN_NORMAL;
}else{
p->openMode = (u8)deduceDatabaseType(zDbFilename,
(openFlags & OPEN_DB_ZIPFILE)!=0);
}
}
switch( p->openMode ){
case SHELL_OPEN_APPENDVFS: {
sqlite3_open_v2(zDbFilename, &p->db,
SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|p->openFlags, "apndvfs");
break;
}
case SHELL_OPEN_HEXDB:
case SHELL_OPEN_DESERIALIZE: {
sqlite3_open(0, &p->db);
break;
}
case SHELL_OPEN_ZIPFILE: {
sqlite3_open(":memory:", &p->db);
break;
}
case SHELL_OPEN_READONLY: {
sqlite3_open_v2(zDbFilename, &p->db,
SQLITE_OPEN_READONLY|p->openFlags, 0);
break;
}
case SHELL_OPEN_UNSPEC:
case SHELL_OPEN_NORMAL: {
sqlite3_open_v2(zDbFilename, &p->db,
SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE|p->openFlags, 0);
break;
}
}
globalDb = p->db;
if( p->db==0 || SQLITE_OK!=sqlite3_errcode(p->db) ){
utf8_printf(stderr,"Error: unable to open database \"%s\": %s\n",
zDbFilename, sqlite3_errmsg(p->db));
if( (openFlags & OPEN_DB_KEEPALIVE)==0 ){
exit(1);
}
sqlite3_close(p->db);
sqlite3_open(":memory:", &p->db);
if( p->db==0 || SQLITE_OK!=sqlite3_errcode(p->db) ){
utf8_printf(stderr,
"Also: unable to open substitute in-memory database.\n"
);
exit(1);
}else{
utf8_printf(stderr,
"Notice: using substitute in-memory database instead of \"%s\"\n",
zDbFilename);
}
}
sqlite3_db_config(p->db, SQLITE_DBCONFIG_STMT_SCANSTATUS, (int)0, (int*)0);
/* Reflect the use or absence of --unsafe-testing invocation. */
{
int testmode_on = ShellHasFlag(p,SHFLG_TestingMode);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_TRUSTED_SCHEMA, testmode_on,0);
sqlite3_db_config(p->db, SQLITE_DBCONFIG_DEFENSIVE, !testmode_on,0);
}
#ifndef SQLITE_OMIT_LOAD_EXTENSION
sqlite3_enable_load_extension(p->db, 1);
#endif
sqlite3_shathree_init(p->db, 0, 0);
sqlite3_uint_init(p->db, 0, 0);
sqlite3_decimal_init(p->db, 0, 0);
sqlite3_base64_init(p->db, 0, 0);
sqlite3_base85_init(p->db, 0, 0);
sqlite3_regexp_init(p->db, 0, 0);
sqlite3_ieee_init(p->db, 0, 0);
sqlite3_series_init(p->db, 0, 0);
#ifndef SQLITE_SHELL_FIDDLE
sqlite3_fileio_init(p->db, 0, 0);
sqlite3_completion_init(p->db, 0, 0);
#endif
#ifdef SQLITE_HAVE_ZLIB
if( !p->bSafeModePersist ){
sqlite3_zipfile_init(p->db, 0, 0);
sqlite3_sqlar_init(p->db, 0, 0);
}
#endif
#ifdef SQLITE_SHELL_EXTFUNCS
/* Create a preprocessing mechanism for extensions to make
* their own provisions for being built into the shell.
* This is a short-span macro. See further below for usage.
*/
#define SHELL_SUB_MACRO(base, variant) base ## _ ## variant
#define SHELL_SUBMACRO(base, variant) SHELL_SUB_MACRO(base, variant)
/* Let custom-included extensions get their ..._init() called.
* The WHATEVER_INIT( db, pzErrorMsg, pApi ) macro should cause
* the extension's sqlite3_*_init( db, pzErrorMsg, pApi )
* initialization routine to be called.
*/
{
int irc = SHELL_SUBMACRO(SQLITE_SHELL_EXTFUNCS, INIT)(p->db);
/* Let custom-included extensions expose their functionality.
* The WHATEVER_EXPOSE( db, pzErrorMsg ) macro should cause
* the SQL functions, virtual tables, collating sequences or
* VFS's implemented by the extension to be registered.
*/
if( irc==SQLITE_OK
|| irc==SQLITE_OK_LOAD_PERMANENTLY ){
SHELL_SUBMACRO(SQLITE_SHELL_EXTFUNCS, EXPOSE)(p->db, 0);
}
#undef SHELL_SUB_MACRO
#undef SHELL_SUBMACRO
}
#endif
sqlite3_create_function(p->db, "strtod", 1, SQLITE_UTF8, 0,
shellStrtod, 0, 0);
sqlite3_create_function(p->db, "dtostr", 1, SQLITE_UTF8, 0,
shellDtostr, 0, 0);
sqlite3_create_function(p->db, "dtostr", 2, SQLITE_UTF8, 0,
shellDtostr, 0, 0);
sqlite3_create_function(p->db, "shell_add_schema", 3, SQLITE_UTF8, 0,
shellAddSchemaName, 0, 0);
sqlite3_create_function(p->db, "shell_module_schema", 1, SQLITE_UTF8, 0,
shellModuleSchema, 0, 0);
sqlite3_create_function(p->db, "shell_putsnl", 1, SQLITE_UTF8, p,
shellPutsFunc, 0, 0);
sqlite3_create_function(p->db, "usleep",1,SQLITE_UTF8,0,
shellUSleepFunc, 0, 0);
#ifndef SQLITE_NOHAVE_SYSTEM
sqlite3_create_function(p->db, "edit", 1, SQLITE_UTF8, 0,
editFunc, 0, 0);
sqlite3_create_function(p->db, "edit", 2, SQLITE_UTF8, 0,
editFunc, 0, 0);
#endif
if( p->openMode==SHELL_OPEN_ZIPFILE ){
char *zSql = sqlite3_mprintf(
"CREATE VIRTUAL TABLE zip USING zipfile(%Q);", zDbFilename);
shell_check_oom(zSql);
sqlite3_exec(p->db, zSql, 0, 0, 0);
sqlite3_free(zSql);
}
#ifndef SQLITE_OMIT_DESERIALIZE
else
if( p->openMode==SHELL_OPEN_DESERIALIZE || p->openMode==SHELL_OPEN_HEXDB ){
int rc;
int nData = 0;
unsigned char *aData;
if( p->openMode==SHELL_OPEN_DESERIALIZE ){
aData = (unsigned char*)readFile(zDbFilename, &nData);
}else{
aData = readHexDb(p, &nData);
}
if( aData==0 ){
return;
}
rc = sqlite3_deserialize(p->db, "main", aData, nData, nData,
SQLITE_DESERIALIZE_RESIZEABLE |
SQLITE_DESERIALIZE_FREEONCLOSE);
if( rc ){
utf8_printf(stderr, "Error: sqlite3_deserialize() returns %d\n", rc);
}
if( p->szMax>0 ){
sqlite3_file_control(p->db, "main", SQLITE_FCNTL_SIZE_LIMIT, &p->szMax);
}
}
#endif
}
if( p->db!=0 ){
if( p->bSafeModePersist ){
sqlite3_set_authorizer(p->db, safeModeAuth, p);
}
sqlite3_db_config(
p->db, SQLITE_DBCONFIG_STMT_SCANSTATUS, p->scanstatsOn, (int*)0
);
}
}
/*
** Attempt to close the database connection. Report errors.
*/
void close_db(sqlite3 *db){
int rc = sqlite3_close(db);
if( rc ){
utf8_printf(stderr, "Error: sqlite3_close() returns %d: %s\n",
rc, sqlite3_errmsg(db));
}
}
#if HAVE_READLINE || HAVE_EDITLINE
/*
** Readline completion callbacks
*/
static char *readline_completion_generator(const char *text, int state){
static sqlite3_stmt *pStmt = 0;
char *zRet;
if( state==0 ){
char *zSql;
sqlite3_finalize(pStmt);
zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
" FROM completion(%Q) ORDER BY 1", text);
shell_check_oom(zSql);
sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
}
if( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *z = (const char*)sqlite3_column_text(pStmt,0);
zRet = z ? strdup(z) : 0;
}else{
sqlite3_finalize(pStmt);
pStmt = 0;
zRet = 0;
}
return zRet;
}
static char **readline_completion(const char *zText, int iStart, int iEnd){
(void)iStart;
(void)iEnd;
rl_attempted_completion_over = 1;
return rl_completion_matches(zText, readline_completion_generator);
}
#elif HAVE_LINENOISE
/*
** Linenoise completion callback
*/
static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){
i64 nLine = strlen(zLine);
i64 i, iStart;
sqlite3_stmt *pStmt = 0;
char *zSql;
char zBuf[1000];
if( nLine>(i64)sizeof(zBuf)-30 ) return;
if( zLine[0]=='.' || zLine[0]=='#') return;
for(i=nLine-1; i>=0 && (isalnum(zLine[i]) || zLine[i]=='_'); i--){}
if( i==nLine-1 ) return;
iStart = i+1;
memcpy(zBuf, zLine, iStart);
zSql = sqlite3_mprintf("SELECT DISTINCT candidate COLLATE nocase"
" FROM completion(%Q,%Q) ORDER BY 1",
&zLine[iStart], zLine);
shell_check_oom(zSql);
sqlite3_prepare_v2(globalDb, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
sqlite3_exec(globalDb, "PRAGMA page_count", 0, 0, 0); /* Load the schema */
while( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *zCompletion = (const char*)sqlite3_column_text(pStmt, 0);
int nCompletion = sqlite3_column_bytes(pStmt, 0);
if( iStart+nCompletion < (i64)sizeof(zBuf)-1 && zCompletion ){
memcpy(zBuf+iStart, zCompletion, nCompletion+1);
linenoiseAddCompletion(lc, zBuf);
}
}
sqlite3_finalize(pStmt);
}
#endif
/*
** Do C-language style dequoting.
**
** \a -> alarm
** \b -> backspace
** \t -> tab
** \n -> newline
** \v -> vertical tab
** \f -> form feed
** \r -> carriage return
** \s -> space
** \" -> "
** \' -> '
** \\ -> backslash
** \NNN -> ascii character NNN in octal
** \xHH -> ascii character HH in hexadecimal
*/
static void resolve_backslashes(char *z){
int i, j;
char c;
while( *z && *z!='\\' ) z++;
for(i=j=0; (c = z[i])!=0; i++, j++){
if( c=='\\' && z[i+1]!=0 ){
c = z[++i];
if( c=='a' ){
c = '\a';
}else if( c=='b' ){
c = '\b';
}else if( c=='t' ){
c = '\t';
}else if( c=='n' ){
c = '\n';
}else if( c=='v' ){
c = '\v';
}else if( c=='f' ){
c = '\f';
}else if( c=='r' ){
c = '\r';
}else if( c=='"' ){
c = '"';
}else if( c=='\'' ){
c = '\'';
}else if( c=='\\' ){
c = '\\';
}else if( c=='x' ){
int nhd = 0, hdv;
u8 hv = 0;
while( nhd<2 && (c=z[i+1+nhd])!=0 && (hdv=hexDigitValue(c))>=0 ){
hv = (u8)((hv<<4)|hdv);
++nhd;
}
i += nhd;
c = (u8)hv;
}else if( c>='0' && c<='7' ){
c -= '0';
if( z[i+1]>='0' && z[i+1]<='7' ){
i++;
c = (c<<3) + z[i] - '0';
if( z[i+1]>='0' && z[i+1]<='7' ){
i++;
c = (c<<3) + z[i] - '0';
}
}
}
}
z[j] = c;
}
if( j<i ) z[j] = 0;
}
/*
** Interpret zArg as either an integer or a boolean value. Return 1 or 0
** for TRUE and FALSE. Return the integer value if appropriate.
*/
static int booleanValue(const char *zArg){
int i;
if( zArg[0]=='0' && zArg[1]=='x' ){
for(i=2; hexDigitValue(zArg[i])>=0; i++){}
}else{
for(i=0; zArg[i]>='0' && zArg[i]<='9'; i++){}
}
if( i>0 && zArg[i]==0 ) return (int)(integerValue(zArg) & 0xffffffff);
if( sqlite3_stricmp(zArg, "on")==0 || sqlite3_stricmp(zArg,"yes")==0 ){
return 1;
}
if( sqlite3_stricmp(zArg, "off")==0 || sqlite3_stricmp(zArg,"no")==0 ){
return 0;
}
utf8_printf(stderr, "ERROR: Not a boolean value: \"%s\". Assuming \"no\".\n",
zArg);
return 0;
}
/*
** Set or clear a shell flag according to a boolean value.
*/
static void setOrClearFlag(ShellState *p, unsigned mFlag, const char *zArg){
if( booleanValue(zArg) ){
ShellSetFlag(p, mFlag);
}else{
ShellClearFlag(p, mFlag);
}
}
/*
** Close an output file, assuming it is not stderr or stdout
*/
static void output_file_close(FILE *f){
if( f && f!=stdout && f!=stderr ) fclose(f);
}
/*
** Try to open an output file. The names "stdout" and "stderr" are
** recognized and do the right thing. NULL is returned if the output
** filename is "off".
*/
static FILE *output_file_open(const char *zFile, int bTextMode){
FILE *f;
if( cli_strcmp(zFile,"stdout")==0 ){
f = stdout;
}else if( cli_strcmp(zFile, "stderr")==0 ){
f = stderr;
}else if( cli_strcmp(zFile, "off")==0 ){
f = 0;
}else{
f = fopen(zFile, bTextMode ? "w" : "wb");
if( f==0 ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile);
}
}
return f;
}
#ifndef SQLITE_OMIT_TRACE
/*
** A routine for handling output from sqlite3_trace().
*/
static int sql_trace_callback(
unsigned mType, /* The trace type */
void *pArg, /* The ShellState pointer */
void *pP, /* Usually a pointer to sqlite_stmt */
void *pX /* Auxiliary output */
){
ShellState *p = (ShellState*)pArg;
sqlite3_stmt *pStmt;
const char *zSql;
i64 nSql;
if( p->traceOut==0 ) return 0;
if( mType==SQLITE_TRACE_CLOSE ){
utf8_printf(p->traceOut, "-- closing database connection\n");
return 0;
}
if( mType!=SQLITE_TRACE_ROW && pX!=0 && ((const char*)pX)[0]=='-' ){
zSql = (const char*)pX;
}else{
pStmt = (sqlite3_stmt*)pP;
switch( p->eTraceType ){
case SHELL_TRACE_EXPANDED: {
zSql = sqlite3_expanded_sql(pStmt);
break;
}
#ifdef SQLITE_ENABLE_NORMALIZE
case SHELL_TRACE_NORMALIZED: {
zSql = sqlite3_normalized_sql(pStmt);
break;
}
#endif
default: {
zSql = sqlite3_sql(pStmt);
break;
}
}
}
if( zSql==0 ) return 0;
nSql = strlen(zSql);
if( nSql>1000000000 ) nSql = 1000000000;
while( nSql>0 && zSql[nSql-1]==';' ){ nSql--; }
switch( mType ){
case SQLITE_TRACE_ROW:
case SQLITE_TRACE_STMT: {
utf8_printf(p->traceOut, "%.*s;\n", (int)nSql, zSql);
break;
}
case SQLITE_TRACE_PROFILE: {
sqlite3_int64 nNanosec = pX ? *(sqlite3_int64*)pX : 0;
utf8_printf(p->traceOut, "%.*s; -- %lld ns\n", (int)nSql, zSql, nNanosec);
break;
}
}
return 0;
}
#endif
/*
** A no-op routine that runs with the ".breakpoint" doc-command. This is
** a useful spot to set a debugger breakpoint.
**
** This routine does not do anything practical. The code are there simply
** to prevent the compiler from optimizing this routine out.
*/
static void test_breakpoint(void){
static unsigned int nCall = 0;
if( (nCall++)==0xffffffff ) printf("Many .breakpoints have run\n");
}
/*
** An object used to read a CSV and other files for import.
*/
typedef struct ImportCtx ImportCtx;
struct ImportCtx {
const char *zFile; /* Name of the input file */
FILE *in; /* Read the CSV text from this input stream */
int (SQLITE_CDECL *xCloser)(FILE*); /* Func to close in */
char *z; /* Accumulated text for a field */
int n; /* Number of bytes in z */
int nAlloc; /* Space allocated for z[] */
int nLine; /* Current line number */
int nRow; /* Number of rows imported */
int nErr; /* Number of errors encountered */
int bNotFirst; /* True if one or more bytes already read */
int cTerm; /* Character that terminated the most recent field */
int cColSep; /* The column separator character. (Usually ",") */
int cRowSep; /* The row separator character. (Usually "\n") */
};
/* Clean up resourced used by an ImportCtx */
static void import_cleanup(ImportCtx *p){
if( p->in!=0 && p->xCloser!=0 ){
p->xCloser(p->in);
p->in = 0;
}
sqlite3_free(p->z);
p->z = 0;
}
/* Append a single byte to z[] */
static void import_append_char(ImportCtx *p, int c){
if( p->n+1>=p->nAlloc ){
p->nAlloc += p->nAlloc + 100;
p->z = sqlite3_realloc64(p->z, p->nAlloc);
shell_check_oom(p->z);
}
p->z[p->n++] = (char)c;
}
/* Read a single field of CSV text. Compatible with rfc4180 and extended
** with the option of having a separator other than ",".
**
** + Input comes from p->in.
** + Store results in p->z of length p->n. Space to hold p->z comes
** from sqlite3_malloc64().
** + Use p->cSep as the column separator. The default is ",".
** + Use p->rSep as the row separator. The default is "\n".
** + Keep track of the line number in p->nLine.
** + Store the character that terminates the field in p->cTerm. Store
** EOF on end-of-file.
** + Report syntax errors on stderr
*/
static char *SQLITE_CDECL csv_read_one_field(ImportCtx *p){
int c;
int cSep = (u8)p->cColSep;
int rSep = (u8)p->cRowSep;
p->n = 0;
c = fgetc(p->in);
if( c==EOF || seenInterrupt ){
p->cTerm = EOF;
return 0;
}
if( c=='"' ){
int pc, ppc;
int startLine = p->nLine;
int cQuote = c;
pc = ppc = 0;
while( 1 ){
c = fgetc(p->in);
if( c==rSep ) p->nLine++;
if( c==cQuote ){
if( pc==cQuote ){
pc = 0;
continue;
}
}
if( (c==cSep && pc==cQuote)
|| (c==rSep && pc==cQuote)
|| (c==rSep && pc=='\r' && ppc==cQuote)
|| (c==EOF && pc==cQuote)
){
do{ p->n--; }while( p->z[p->n]!=cQuote );
p->cTerm = c;
break;
}
if( pc==cQuote && c!='\r' ){
utf8_printf(stderr, "%s:%d: unescaped %c character\n",
p->zFile, p->nLine, cQuote);
}
if( c==EOF ){
utf8_printf(stderr, "%s:%d: unterminated %c-quoted field\n",
p->zFile, startLine, cQuote);
p->cTerm = c;
break;
}
import_append_char(p, c);
ppc = pc;
pc = c;
}
}else{
/* If this is the first field being parsed and it begins with the
** UTF-8 BOM (0xEF BB BF) then skip the BOM */
if( (c&0xff)==0xef && p->bNotFirst==0 ){
import_append_char(p, c);
c = fgetc(p->in);
if( (c&0xff)==0xbb ){
import_append_char(p, c);
c = fgetc(p->in);
if( (c&0xff)==0xbf ){
p->bNotFirst = 1;
p->n = 0;
return csv_read_one_field(p);
}
}
}
while( c!=EOF && c!=cSep && c!=rSep ){
import_append_char(p, c);
c = fgetc(p->in);
}
if( c==rSep ){
p->nLine++;
if( p->n>0 && p->z[p->n-1]=='\r' ) p->n--;
}
p->cTerm = c;
}
if( p->z ) p->z[p->n] = 0;
p->bNotFirst = 1;
return p->z;
}
/* Read a single field of ASCII delimited text.
**
** + Input comes from p->in.
** + Store results in p->z of length p->n. Space to hold p->z comes
** from sqlite3_malloc64().
** + Use p->cSep as the column separator. The default is "\x1F".
** + Use p->rSep as the row separator. The default is "\x1E".
** + Keep track of the row number in p->nLine.
** + Store the character that terminates the field in p->cTerm. Store
** EOF on end-of-file.
** + Report syntax errors on stderr
*/
static char *SQLITE_CDECL ascii_read_one_field(ImportCtx *p){
int c;
int cSep = (u8)p->cColSep;
int rSep = (u8)p->cRowSep;
p->n = 0;
c = fgetc(p->in);
if( c==EOF || seenInterrupt ){
p->cTerm = EOF;
return 0;
}
while( c!=EOF && c!=cSep && c!=rSep ){
import_append_char(p, c);
c = fgetc(p->in);
}
if( c==rSep ){
p->nLine++;
}
p->cTerm = c;
if( p->z ) p->z[p->n] = 0;
return p->z;
}
/*
** Try to transfer data for table zTable. If an error is seen while
** moving forward, try to go backwards. The backwards movement won't
** work for WITHOUT ROWID tables.
*/
static void tryToCloneData(
ShellState *p,
sqlite3 *newDb,
const char *zTable
){
sqlite3_stmt *pQuery = 0;
sqlite3_stmt *pInsert = 0;
char *zQuery = 0;
char *zInsert = 0;
int rc;
int i, j, n;
int nTable = strlen30(zTable);
int k = 0;
int cnt = 0;
const int spinRate = 10000;
zQuery = sqlite3_mprintf("SELECT * FROM \"%w\"", zTable);
shell_check_oom(zQuery);
rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
if( rc ){
utf8_printf(stderr, "Error %d: %s on [%s]\n",
sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
zQuery);
goto end_data_xfer;
}
n = sqlite3_column_count(pQuery);
zInsert = sqlite3_malloc64(200 + nTable + n*3);
shell_check_oom(zInsert);
sqlite3_snprintf(200+nTable,zInsert,
"INSERT OR IGNORE INTO \"%s\" VALUES(?", zTable);
i = strlen30(zInsert);
for(j=1; j<n; j++){
memcpy(zInsert+i, ",?", 2);
i += 2;
}
memcpy(zInsert+i, ");", 3);
rc = sqlite3_prepare_v2(newDb, zInsert, -1, &pInsert, 0);
if( rc ){
utf8_printf(stderr, "Error %d: %s on [%s]\n",
sqlite3_extended_errcode(newDb), sqlite3_errmsg(newDb),
zInsert);
goto end_data_xfer;
}
for(k=0; k<2; k++){
while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){
for(i=0; i<n; i++){
switch( sqlite3_column_type(pQuery, i) ){
case SQLITE_NULL: {
sqlite3_bind_null(pInsert, i+1);
break;
}
case SQLITE_INTEGER: {
sqlite3_bind_int64(pInsert, i+1, sqlite3_column_int64(pQuery,i));
break;
}
case SQLITE_FLOAT: {
sqlite3_bind_double(pInsert, i+1, sqlite3_column_double(pQuery,i));
break;
}
case SQLITE_TEXT: {
sqlite3_bind_text(pInsert, i+1,
(const char*)sqlite3_column_text(pQuery,i),
-1, SQLITE_STATIC);
break;
}
case SQLITE_BLOB: {
sqlite3_bind_blob(pInsert, i+1, sqlite3_column_blob(pQuery,i),
sqlite3_column_bytes(pQuery,i),
SQLITE_STATIC);
break;
}
}
} /* End for */
rc = sqlite3_step(pInsert);
if( rc!=SQLITE_OK && rc!=SQLITE_ROW && rc!=SQLITE_DONE ){
utf8_printf(stderr, "Error %d: %s\n", sqlite3_extended_errcode(newDb),
sqlite3_errmsg(newDb));
}
sqlite3_reset(pInsert);
cnt++;
if( (cnt%spinRate)==0 ){
printf("%c\b", "|/-\\"[(cnt/spinRate)%4]);
fflush(stdout);
}
} /* End while */
if( rc==SQLITE_DONE ) break;
sqlite3_finalize(pQuery);
sqlite3_free(zQuery);
zQuery = sqlite3_mprintf("SELECT * FROM \"%w\" ORDER BY rowid DESC;",
zTable);
shell_check_oom(zQuery);
rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
if( rc ){
utf8_printf(stderr, "Warning: cannot step \"%s\" backwards", zTable);
break;
}
} /* End for(k=0...) */
end_data_xfer:
sqlite3_finalize(pQuery);
sqlite3_finalize(pInsert);
sqlite3_free(zQuery);
sqlite3_free(zInsert);
}
/*
** Try to transfer all rows of the schema that match zWhere. For
** each row, invoke xForEach() on the object defined by that row.
** If an error is encountered while moving forward through the
** sqlite_schema table, try again moving backwards.
*/
static void tryToCloneSchema(
ShellState *p,
sqlite3 *newDb,
const char *zWhere,
void (*xForEach)(ShellState*,sqlite3*,const char*)
){
sqlite3_stmt *pQuery = 0;
char *zQuery = 0;
int rc;
const unsigned char *zName;
const unsigned char *zSql;
char *zErrMsg = 0;
zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_schema"
" WHERE %s ORDER BY rowid ASC", zWhere);
shell_check_oom(zQuery);
rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
if( rc ){
utf8_printf(stderr, "Error: (%d) %s on [%s]\n",
sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
zQuery);
goto end_schema_xfer;
}
while( (rc = sqlite3_step(pQuery))==SQLITE_ROW ){
zName = sqlite3_column_text(pQuery, 0);
zSql = sqlite3_column_text(pQuery, 1);
if( zName==0 || zSql==0 ) continue;
if( sqlite3_stricmp((char*)zName, "sqlite_sequence")!=0 ){
printf("%s... ", zName); fflush(stdout);
sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg);
if( zErrMsg ){
utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql);
sqlite3_free(zErrMsg);
zErrMsg = 0;
}
}
if( xForEach ){
xForEach(p, newDb, (const char*)zName);
}
printf("done\n");
}
if( rc!=SQLITE_DONE ){
sqlite3_finalize(pQuery);
sqlite3_free(zQuery);
zQuery = sqlite3_mprintf("SELECT name, sql FROM sqlite_schema"
" WHERE %s ORDER BY rowid DESC", zWhere);
shell_check_oom(zQuery);
rc = sqlite3_prepare_v2(p->db, zQuery, -1, &pQuery, 0);
if( rc ){
utf8_printf(stderr, "Error: (%d) %s on [%s]\n",
sqlite3_extended_errcode(p->db), sqlite3_errmsg(p->db),
zQuery);
goto end_schema_xfer;
}
while( sqlite3_step(pQuery)==SQLITE_ROW ){
zName = sqlite3_column_text(pQuery, 0);
zSql = sqlite3_column_text(pQuery, 1);
if( zName==0 || zSql==0 ) continue;
if( sqlite3_stricmp((char*)zName, "sqlite_sequence")==0 ) continue;
printf("%s... ", zName); fflush(stdout);
sqlite3_exec(newDb, (const char*)zSql, 0, 0, &zErrMsg);
if( zErrMsg ){
utf8_printf(stderr, "Error: %s\nSQL: [%s]\n", zErrMsg, zSql);
sqlite3_free(zErrMsg);
zErrMsg = 0;
}
if( xForEach ){
xForEach(p, newDb, (const char*)zName);
}
printf("done\n");
}
}
end_schema_xfer:
sqlite3_finalize(pQuery);
sqlite3_free(zQuery);
}
/*
** Open a new database file named "zNewDb". Try to recover as much information
** as possible out of the main database (which might be corrupt) and write it
** into zNewDb.
*/
static void tryToClone(ShellState *p, const char *zNewDb){
int rc;
sqlite3 *newDb = 0;
if( access(zNewDb,0)==0 ){
utf8_printf(stderr, "File \"%s\" already exists.\n", zNewDb);
return;
}
rc = sqlite3_open(zNewDb, &newDb);
if( rc ){
utf8_printf(stderr, "Cannot create output database: %s\n",
sqlite3_errmsg(newDb));
}else{
sqlite3_exec(p->db, "PRAGMA writable_schema=ON;", 0, 0, 0);
sqlite3_exec(newDb, "BEGIN EXCLUSIVE;", 0, 0, 0);
tryToCloneSchema(p, newDb, "type='table'", tryToCloneData);
tryToCloneSchema(p, newDb, "type!='table'", 0);
sqlite3_exec(newDb, "COMMIT;", 0, 0, 0);
sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0);
}
close_db(newDb);
}
/*
** Change the output file back to stdout.
**
** If the p->doXdgOpen flag is set, that means the output was being
** redirected to a temporary file named by p->zTempFile. In that case,
** launch start/open/xdg-open on that temporary file.
*/
static void output_reset(ShellState *p){
if( p->outfile[0]=='|' ){
#ifndef SQLITE_OMIT_POPEN
pclose(p->out);
#endif
}else{
output_file_close(p->out);
#ifndef SQLITE_NOHAVE_SYSTEM
if( p->doXdgOpen ){
const char *zXdgOpenCmd =
#if defined(_WIN32)
"start";
#elif defined(__APPLE__)
"open";
#else
"xdg-open";
#endif
char *zCmd;
zCmd = sqlite3_mprintf("%s %s", zXdgOpenCmd, p->zTempFile);
if( system(zCmd) ){
utf8_printf(stderr, "Failed: [%s]\n", zCmd);
}else{
/* Give the start/open/xdg-open command some time to get
** going before we continue, and potential delete the
** p->zTempFile data file out from under it */
sqlite3_sleep(2000);
}
sqlite3_free(zCmd);
outputModePop(p);
p->doXdgOpen = 0;
}
#endif /* !defined(SQLITE_NOHAVE_SYSTEM) */
}
p->outfile[0] = 0;
p->out = stdout;
}
/*
** Run an SQL command and return the single integer result.
*/
static int db_int(sqlite3 *db, const char *zSql){
sqlite3_stmt *pStmt;
int res = 0;
sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
if( pStmt && sqlite3_step(pStmt)==SQLITE_ROW ){
res = sqlite3_column_int(pStmt,0);
}
sqlite3_finalize(pStmt);
return res;
}
#if SQLITE_SHELL_HAVE_RECOVER
/*
** Convert a 2-byte or 4-byte big-endian integer into a native integer
*/
static unsigned int get2byteInt(unsigned char *a){
return (a[0]<<8) + a[1];
}
static unsigned int get4byteInt(unsigned char *a){
return (a[0]<<24) + (a[1]<<16) + (a[2]<<8) + a[3];
}
/*
** Implementation of the ".dbinfo" command.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
static int shell_dbinfo_command(ShellState *p, int nArg, char **azArg){
static const struct { const char *zName; int ofst; } aField[] = {
{ "file change counter:", 24 },
{ "database page count:", 28 },
{ "freelist page count:", 36 },
{ "schema cookie:", 40 },
{ "schema format:", 44 },
{ "default cache size:", 48 },
{ "autovacuum top root:", 52 },
{ "incremental vacuum:", 64 },
{ "text encoding:", 56 },
{ "user version:", 60 },
{ "application id:", 68 },
{ "software version:", 96 },
};
static const struct { const char *zName; const char *zSql; } aQuery[] = {
{ "number of tables:",
"SELECT count(*) FROM %s WHERE type='table'" },
{ "number of indexes:",
"SELECT count(*) FROM %s WHERE type='index'" },
{ "number of triggers:",
"SELECT count(*) FROM %s WHERE type='trigger'" },
{ "number of views:",
"SELECT count(*) FROM %s WHERE type='view'" },
{ "schema size:",
"SELECT total(length(sql)) FROM %s" },
};
int i, rc;
unsigned iDataVersion;
char *zSchemaTab;
char *zDb = nArg>=2 ? azArg[1] : "main";
sqlite3_stmt *pStmt = 0;
unsigned char aHdr[100];
open_db(p, 0);
if( p->db==0 ) return 1;
rc = sqlite3_prepare_v2(p->db,
"SELECT data FROM sqlite_dbpage(?1) WHERE pgno=1",
-1, &pStmt, 0);
if( rc ){
utf8_printf(stderr, "error: %s\n", sqlite3_errmsg(p->db));
sqlite3_finalize(pStmt);
return 1;
}
sqlite3_bind_text(pStmt, 1, zDb, -1, SQLITE_STATIC);
if( sqlite3_step(pStmt)==SQLITE_ROW
&& sqlite3_column_bytes(pStmt,0)>100
){
const u8 *pb = sqlite3_column_blob(pStmt,0);
shell_check_oom(pb);
memcpy(aHdr, pb, 100);
sqlite3_finalize(pStmt);
}else{
raw_printf(stderr, "unable to read database header\n");
sqlite3_finalize(pStmt);
return 1;
}
i = get2byteInt(aHdr+16);
if( i==1 ) i = 65536;
utf8_printf(p->out, "%-20s %d\n", "database page size:", i);
utf8_printf(p->out, "%-20s %d\n", "write format:", aHdr[18]);
utf8_printf(p->out, "%-20s %d\n", "read format:", aHdr[19]);
utf8_printf(p->out, "%-20s %d\n", "reserved bytes:", aHdr[20]);
for(i=0; i<ArraySize(aField); i++){
int ofst = aField[i].ofst;
unsigned int val = get4byteInt(aHdr + ofst);
utf8_printf(p->out, "%-20s %u", aField[i].zName, val);
switch( ofst ){
case 56: {
if( val==1 ) raw_printf(p->out, " (utf8)");
if( val==2 ) raw_printf(p->out, " (utf16le)");
if( val==3 ) raw_printf(p->out, " (utf16be)");
}
}
raw_printf(p->out, "\n");
}
if( zDb==0 ){
zSchemaTab = sqlite3_mprintf("main.sqlite_schema");
}else if( cli_strcmp(zDb,"temp")==0 ){
zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_schema");
}else{
zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_schema", zDb);
}
for(i=0; i<ArraySize(aQuery); i++){
char *zSql = sqlite3_mprintf(aQuery[i].zSql, zSchemaTab);
int val = db_int(p->db, zSql);
sqlite3_free(zSql);
utf8_printf(p->out, "%-20s %d\n", aQuery[i].zName, val);
}
sqlite3_free(zSchemaTab);
sqlite3_file_control(p->db, zDb, SQLITE_FCNTL_DATA_VERSION, &iDataVersion);
utf8_printf(p->out, "%-20s %u\n", "data version", iDataVersion);
return 0;
}
#endif /* SQLITE_SHELL_HAVE_RECOVER */
/*
** Print the current sqlite3_errmsg() value to stderr and return 1.
*/
static int shellDatabaseError(sqlite3 *db){
const char *zErr = sqlite3_errmsg(db);
utf8_printf(stderr, "Error: %s\n", zErr);
return 1;
}
/*
** Compare the pattern in zGlob[] against the text in z[]. Return TRUE
** if they match and FALSE (0) if they do not match.
**
** Globbing rules:
**
** '*' Matches any sequence of zero or more characters.
**
** '?' Matches exactly one character.
**
** [...] Matches one character from the enclosed list of
** characters.
**
** [^...] Matches one character not in the enclosed list.
**
** '#' Matches any sequence of one or more digits with an
** optional + or - sign in front
**
** ' ' Any span of whitespace matches any other span of
** whitespace.
**
** Extra whitespace at the end of z[] is ignored.
*/
static int testcase_glob(const char *zGlob, const char *z){
int c, c2;
int invert;
int seen;
while( (c = (*(zGlob++)))!=0 ){
if( IsSpace(c) ){
if( !IsSpace(*z) ) return 0;
while( IsSpace(*zGlob) ) zGlob++;
while( IsSpace(*z) ) z++;
}else if( c=='*' ){
while( (c=(*(zGlob++))) == '*' || c=='?' ){
if( c=='?' && (*(z++))==0 ) return 0;
}
if( c==0 ){
return 1;
}else if( c=='[' ){
while( *z && testcase_glob(zGlob-1,z)==0 ){
z++;
}
return (*z)!=0;
}
while( (c2 = (*(z++)))!=0 ){
while( c2!=c ){
c2 = *(z++);
if( c2==0 ) return 0;
}
if( testcase_glob(zGlob,z) ) return 1;
}
return 0;
}else if( c=='?' ){
if( (*(z++))==0 ) return 0;
}else if( c=='[' ){
int prior_c = 0;
seen = 0;
invert = 0;
c = *(z++);
if( c==0 ) return 0;
c2 = *(zGlob++);
if( c2=='^' ){
invert = 1;
c2 = *(zGlob++);
}
if( c2==']' ){
if( c==']' ) seen = 1;
c2 = *(zGlob++);
}
while( c2 && c2!=']' ){
if( c2=='-' && zGlob[0]!=']' && zGlob[0]!=0 && prior_c>0 ){
c2 = *(zGlob++);
if( c>=prior_c && c<=c2 ) seen = 1;
prior_c = 0;
}else{
if( c==c2 ){
seen = 1;
}
prior_c = c2;
}
c2 = *(zGlob++);
}
if( c2==0 || (seen ^ invert)==0 ) return 0;
}else if( c=='#' ){
if( (z[0]=='-' || z[0]=='+') && IsDigit(z[1]) ) z++;
if( !IsDigit(z[0]) ) return 0;
z++;
while( IsDigit(z[0]) ){ z++; }
}else{
if( c!=(*(z++)) ) return 0;
}
}
while( IsSpace(*z) ){ z++; }
return *z==0;
}
/*
** Compare the string as a command-line option with either one or two
** initial "-" characters.
*/
static int optionMatch(const char *zStr, const char *zOpt){
if( zStr[0]!='-' ) return 0;
zStr++;
if( zStr[0]=='-' ) zStr++;
return cli_strcmp(zStr, zOpt)==0;
}
/*
** Delete a file.
*/
int shellDeleteFile(const char *zFilename){
int rc;
#ifdef _WIN32
wchar_t *z = sqlite3_win32_utf8_to_unicode(zFilename);
rc = _wunlink(z);
sqlite3_free(z);
#else
rc = unlink(zFilename);
#endif
return rc;
}
/*
** Try to delete the temporary file (if there is one) and free the
** memory used to hold the name of the temp file.
*/
static void clearTempFile(ShellState *p){
if( p->zTempFile==0 ) return;
if( p->doXdgOpen ) return;
if( shellDeleteFile(p->zTempFile) ) return;
sqlite3_free(p->zTempFile);
p->zTempFile = 0;
}
/*
** Create a new temp file name with the given suffix.
*/
static void newTempFile(ShellState *p, const char *zSuffix){
clearTempFile(p);
sqlite3_free(p->zTempFile);
p->zTempFile = 0;
if( p->db ){
sqlite3_file_control(p->db, 0, SQLITE_FCNTL_TEMPFILENAME, &p->zTempFile);
}
if( p->zTempFile==0 ){
/* If p->db is an in-memory database then the TEMPFILENAME file-control
** will not work and we will need to fallback to guessing */
char *zTemp;
sqlite3_uint64 r;
sqlite3_randomness(sizeof(r), &r);
zTemp = getenv("TEMP");
if( zTemp==0 ) zTemp = getenv("TMP");
if( zTemp==0 ){
#ifdef _WIN32
zTemp = "\\tmp";
#else
zTemp = "/tmp";
#endif
}
p->zTempFile = sqlite3_mprintf("%s/temp%llx.%s", zTemp, r, zSuffix);
}else{
p->zTempFile = sqlite3_mprintf("%z.%s", p->zTempFile, zSuffix);
}
shell_check_oom(p->zTempFile);
}
/*
** The implementation of SQL scalar function fkey_collate_clause(), used
** by the ".lint fkey-indexes" command. This scalar function is always
** called with four arguments - the parent table name, the parent column name,
** the child table name and the child column name.
**
** fkey_collate_clause('parent-tab', 'parent-col', 'child-tab', 'child-col')
**
** If either of the named tables or columns do not exist, this function
** returns an empty string. An empty string is also returned if both tables
** and columns exist but have the same default collation sequence. Or,
** if both exist but the default collation sequences are different, this
** function returns the string " COLLATE <parent-collation>", where
** <parent-collation> is the default collation sequence of the parent column.
*/
static void shellFkeyCollateClause(
sqlite3_context *pCtx,
int nVal,
sqlite3_value **apVal
){
sqlite3 *db = sqlite3_context_db_handle(pCtx);
const char *zParent;
const char *zParentCol;
const char *zParentSeq;
const char *zChild;
const char *zChildCol;
const char *zChildSeq = 0; /* Initialize to avoid false-positive warning */
int rc;
assert( nVal==4 );
zParent = (const char*)sqlite3_value_text(apVal[0]);
zParentCol = (const char*)sqlite3_value_text(apVal[1]);
zChild = (const char*)sqlite3_value_text(apVal[2]);
zChildCol = (const char*)sqlite3_value_text(apVal[3]);
sqlite3_result_text(pCtx, "", -1, SQLITE_STATIC);
rc = sqlite3_table_column_metadata(
db, "main", zParent, zParentCol, 0, &zParentSeq, 0, 0, 0
);
if( rc==SQLITE_OK ){
rc = sqlite3_table_column_metadata(
db, "main", zChild, zChildCol, 0, &zChildSeq, 0, 0, 0
);
}
if( rc==SQLITE_OK && sqlite3_stricmp(zParentSeq, zChildSeq) ){
char *z = sqlite3_mprintf(" COLLATE %s", zParentSeq);
sqlite3_result_text(pCtx, z, -1, SQLITE_TRANSIENT);
sqlite3_free(z);
}
}
/*
** The implementation of dot-command ".lint fkey-indexes".
*/
static int lintFkeyIndexes(
ShellState *pState, /* Current shell tool state */
char **azArg, /* Array of arguments passed to dot command */
int nArg /* Number of entries in azArg[] */
){
sqlite3 *db = pState->db; /* Database handle to query "main" db of */
FILE *out = pState->out; /* Stream to write non-error output to */
int bVerbose = 0; /* If -verbose is present */
int bGroupByParent = 0; /* If -groupbyparent is present */
int i; /* To iterate through azArg[] */
const char *zIndent = ""; /* How much to indent CREATE INDEX by */
int rc; /* Return code */
sqlite3_stmt *pSql = 0; /* Compiled version of SQL statement below */
/*
** This SELECT statement returns one row for each foreign key constraint
** in the schema of the main database. The column values are:
**
** 0. The text of an SQL statement similar to:
**
** "EXPLAIN QUERY PLAN SELECT 1 FROM child_table WHERE child_key=?"
**
** This SELECT is similar to the one that the foreign keys implementation
** needs to run internally on child tables. If there is an index that can
** be used to optimize this query, then it can also be used by the FK
** implementation to optimize DELETE or UPDATE statements on the parent
** table.
**
** 1. A GLOB pattern suitable for sqlite3_strglob(). If the plan output by
** the EXPLAIN QUERY PLAN command matches this pattern, then the schema
** contains an index that can be used to optimize the query.
**
** 2. Human readable text that describes the child table and columns. e.g.
**
** "child_table(child_key1, child_key2)"
**
** 3. Human readable text that describes the parent table and columns. e.g.
**
** "parent_table(parent_key1, parent_key2)"
**
** 4. A full CREATE INDEX statement for an index that could be used to
** optimize DELETE or UPDATE statements on the parent table. e.g.
**
** "CREATE INDEX child_table_child_key ON child_table(child_key)"
**
** 5. The name of the parent table.
**
** These six values are used by the C logic below to generate the report.
*/
const char *zSql =
"SELECT "
" 'EXPLAIN QUERY PLAN SELECT 1 FROM ' || quote(s.name) || ' WHERE '"
" || group_concat(quote(s.name) || '.' || quote(f.[from]) || '=?' "
" || fkey_collate_clause("
" f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]),' AND ')"
", "
" 'SEARCH ' || s.name || ' USING COVERING INDEX*('"
" || group_concat('*=?', ' AND ') || ')'"
", "
" s.name || '(' || group_concat(f.[from], ', ') || ')'"
", "
" f.[table] || '(' || group_concat(COALESCE(f.[to], p.[name])) || ')'"
", "
" 'CREATE INDEX ' || quote(s.name ||'_'|| group_concat(f.[from], '_'))"
" || ' ON ' || quote(s.name) || '('"
" || group_concat(quote(f.[from]) ||"
" fkey_collate_clause("
" f.[table], COALESCE(f.[to], p.[name]), s.name, f.[from]), ', ')"
" || ');'"
", "
" f.[table] "
"FROM sqlite_schema AS s, pragma_foreign_key_list(s.name) AS f "
"LEFT JOIN pragma_table_info AS p ON (pk-1=seq AND p.arg=f.[table]) "
"GROUP BY s.name, f.id "
"ORDER BY (CASE WHEN ? THEN f.[table] ELSE s.name END)"
;
const char *zGlobIPK = "SEARCH * USING INTEGER PRIMARY KEY (rowid=?)";
for(i=2; i<nArg; i++){
int n = strlen30(azArg[i]);
if( n>1 && sqlite3_strnicmp("-verbose", azArg[i], n)==0 ){
bVerbose = 1;
}
else if( n>1 && sqlite3_strnicmp("-groupbyparent", azArg[i], n)==0 ){
bGroupByParent = 1;
zIndent = " ";
}
else{
raw_printf(stderr, "Usage: %s %s ?-verbose? ?-groupbyparent?\n",
azArg[0], azArg[1]
);
return SQLITE_ERROR;
}
}
/* Register the fkey_collate_clause() SQL function */
rc = sqlite3_create_function(db, "fkey_collate_clause", 4, SQLITE_UTF8,
0, shellFkeyCollateClause, 0, 0
);
if( rc==SQLITE_OK ){
rc = sqlite3_prepare_v2(db, zSql, -1, &pSql, 0);
}
if( rc==SQLITE_OK ){
sqlite3_bind_int(pSql, 1, bGroupByParent);
}
if( rc==SQLITE_OK ){
int rc2;
char *zPrev = 0;
while( SQLITE_ROW==sqlite3_step(pSql) ){
int res = -1;
sqlite3_stmt *pExplain = 0;
const char *zEQP = (const char*)sqlite3_column_text(pSql, 0);
const char *zGlob = (const char*)sqlite3_column_text(pSql, 1);
const char *zFrom = (const char*)sqlite3_column_text(pSql, 2);
const char *zTarget = (const char*)sqlite3_column_text(pSql, 3);
const char *zCI = (const char*)sqlite3_column_text(pSql, 4);
const char *zParent = (const char*)sqlite3_column_text(pSql, 5);
if( zEQP==0 ) continue;
if( zGlob==0 ) continue;
rc = sqlite3_prepare_v2(db, zEQP, -1, &pExplain, 0);
if( rc!=SQLITE_OK ) break;
if( SQLITE_ROW==sqlite3_step(pExplain) ){
const char *zPlan = (const char*)sqlite3_column_text(pExplain, 3);
res = zPlan!=0 && ( 0==sqlite3_strglob(zGlob, zPlan)
|| 0==sqlite3_strglob(zGlobIPK, zPlan));
}
rc = sqlite3_finalize(pExplain);
if( rc!=SQLITE_OK ) break;
if( res<0 ){
raw_printf(stderr, "Error: internal error");
break;
}else{
if( bGroupByParent
&& (bVerbose || res==0)
&& (zPrev==0 || sqlite3_stricmp(zParent, zPrev))
){
raw_printf(out, "-- Parent table %s\n", zParent);
sqlite3_free(zPrev);
zPrev = sqlite3_mprintf("%s", zParent);
}
if( res==0 ){
raw_printf(out, "%s%s --> %s\n", zIndent, zCI, zTarget);
}else if( bVerbose ){
raw_printf(out, "%s/* no extra indexes required for %s -> %s */\n",
zIndent, zFrom, zTarget
);
}
}
}
sqlite3_free(zPrev);
if( rc!=SQLITE_OK ){
raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
}
rc2 = sqlite3_finalize(pSql);
if( rc==SQLITE_OK && rc2!=SQLITE_OK ){
rc = rc2;
raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
}
}else{
raw_printf(stderr, "%s\n", sqlite3_errmsg(db));
}
return rc;
}
/*
** Implementation of ".lint" dot command.
*/
static int lintDotCommand(
ShellState *pState, /* Current shell tool state */
char **azArg, /* Array of arguments passed to dot command */
int nArg /* Number of entries in azArg[] */
){
int n;
n = (nArg>=2 ? strlen30(azArg[1]) : 0);
if( n<1 || sqlite3_strnicmp(azArg[1], "fkey-indexes", n) ) goto usage;
return lintFkeyIndexes(pState, azArg, nArg);
usage:
raw_printf(stderr, "Usage %s sub-command ?switches...?\n", azArg[0]);
raw_printf(stderr, "Where sub-commands are:\n");
raw_printf(stderr, " fkey-indexes\n");
return SQLITE_ERROR;
}
#if !defined SQLITE_OMIT_VIRTUALTABLE
static void shellPrepare(
sqlite3 *db,
int *pRc,
const char *zSql,
sqlite3_stmt **ppStmt
){
*ppStmt = 0;
if( *pRc==SQLITE_OK ){
int rc = sqlite3_prepare_v2(db, zSql, -1, ppStmt, 0);
if( rc!=SQLITE_OK ){
raw_printf(stderr, "sql error: %s (%d)\n",
sqlite3_errmsg(db), sqlite3_errcode(db)
);
*pRc = rc;
}
}
}
/*
** Create a prepared statement using printf-style arguments for the SQL.
**
** This routine is could be marked "static". But it is not always used,
** depending on compile-time options. By omitting the "static", we avoid
** nuisance compiler warnings about "defined but not used".
*/
void shellPreparePrintf(
sqlite3 *db,
int *pRc,
sqlite3_stmt **ppStmt,
const char *zFmt,
...
){
*ppStmt = 0;
if( *pRc==SQLITE_OK ){
va_list ap;
char *z;
va_start(ap, zFmt);
z = sqlite3_vmprintf(zFmt, ap);
va_end(ap);
if( z==0 ){
*pRc = SQLITE_NOMEM;
}else{
shellPrepare(db, pRc, z, ppStmt);
sqlite3_free(z);
}
}
}
/* Finalize the prepared statement created using shellPreparePrintf().
**
** This routine is could be marked "static". But it is not always used,
** depending on compile-time options. By omitting the "static", we avoid
** nuisance compiler warnings about "defined but not used".
*/
void shellFinalize(
int *pRc,
sqlite3_stmt *pStmt
){
if( pStmt ){
sqlite3 *db = sqlite3_db_handle(pStmt);
int rc = sqlite3_finalize(pStmt);
if( *pRc==SQLITE_OK ){
if( rc!=SQLITE_OK ){
raw_printf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
}
*pRc = rc;
}
}
}
/* Reset the prepared statement created using shellPreparePrintf().
**
** This routine is could be marked "static". But it is not always used,
** depending on compile-time options. By omitting the "static", we avoid
** nuisance compiler warnings about "defined but not used".
*/
void shellReset(
int *pRc,
sqlite3_stmt *pStmt
){
int rc = sqlite3_reset(pStmt);
if( *pRc==SQLITE_OK ){
if( rc!=SQLITE_OK ){
sqlite3 *db = sqlite3_db_handle(pStmt);
raw_printf(stderr, "SQL error: %s\n", sqlite3_errmsg(db));
}
*pRc = rc;
}
}
#endif /* !defined SQLITE_OMIT_VIRTUALTABLE */
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
/******************************************************************************
** The ".archive" or ".ar" command.
*/
/*
** Structure representing a single ".ar" command.
*/
typedef struct ArCommand ArCommand;
struct ArCommand {
u8 eCmd; /* An AR_CMD_* value */
u8 bVerbose; /* True if --verbose */
u8 bZip; /* True if the archive is a ZIP */
u8 bDryRun; /* True if --dry-run */
u8 bAppend; /* True if --append */
u8 bGlob; /* True if --glob */
u8 fromCmdLine; /* Run from -A instead of .archive */
int nArg; /* Number of command arguments */
char *zSrcTable; /* "sqlar", "zipfile($file)" or "zip" */
const char *zFile; /* --file argument, or NULL */
const char *zDir; /* --directory argument, or NULL */
char **azArg; /* Array of command arguments */
ShellState *p; /* Shell state */
sqlite3 *db; /* Database containing the archive */
};
/*
** Print a usage message for the .ar command to stderr and return SQLITE_ERROR.
*/
static int arUsage(FILE *f){
showHelp(f,"archive");
return SQLITE_ERROR;
}
/*
** Print an error message for the .ar command to stderr and return
** SQLITE_ERROR.
*/
static int arErrorMsg(ArCommand *pAr, const char *zFmt, ...){
va_list ap;
char *z;
va_start(ap, zFmt);
z = sqlite3_vmprintf(zFmt, ap);
va_end(ap);
utf8_printf(stderr, "Error: %s\n", z);
if( pAr->fromCmdLine ){
utf8_printf(stderr, "Use \"-A\" for more help\n");
}else{
utf8_printf(stderr, "Use \".archive --help\" for more help\n");
}
sqlite3_free(z);
return SQLITE_ERROR;
}
/*
** Values for ArCommand.eCmd.
*/
#define AR_CMD_CREATE 1
#define AR_CMD_UPDATE 2
#define AR_CMD_INSERT 3
#define AR_CMD_EXTRACT 4
#define AR_CMD_LIST 5
#define AR_CMD_HELP 6
#define AR_CMD_REMOVE 7
/*
** Other (non-command) switches.
*/
#define AR_SWITCH_VERBOSE 8
#define AR_SWITCH_FILE 9
#define AR_SWITCH_DIRECTORY 10
#define AR_SWITCH_APPEND 11
#define AR_SWITCH_DRYRUN 12
#define AR_SWITCH_GLOB 13
static int arProcessSwitch(ArCommand *pAr, int eSwitch, const char *zArg){
switch( eSwitch ){
case AR_CMD_CREATE:
case AR_CMD_EXTRACT:
case AR_CMD_LIST:
case AR_CMD_REMOVE:
case AR_CMD_UPDATE:
case AR_CMD_INSERT:
case AR_CMD_HELP:
if( pAr->eCmd ){
return arErrorMsg(pAr, "multiple command options");
}
pAr->eCmd = eSwitch;
break;
case AR_SWITCH_DRYRUN:
pAr->bDryRun = 1;
break;
case AR_SWITCH_GLOB:
pAr->bGlob = 1;
break;
case AR_SWITCH_VERBOSE:
pAr->bVerbose = 1;
break;
case AR_SWITCH_APPEND:
pAr->bAppend = 1;
deliberate_fall_through;
case AR_SWITCH_FILE:
pAr->zFile = zArg;
break;
case AR_SWITCH_DIRECTORY:
pAr->zDir = zArg;
break;
}
return SQLITE_OK;
}
/*
** Parse the command line for an ".ar" command. The results are written into
** structure (*pAr). SQLITE_OK is returned if the command line is parsed
** successfully, otherwise an error message is written to stderr and
** SQLITE_ERROR returned.
*/
static int arParseCommand(
char **azArg, /* Array of arguments passed to dot command */
int nArg, /* Number of entries in azArg[] */
ArCommand *pAr /* Populate this object */
){
struct ArSwitch {
const char *zLong;
char cShort;
u8 eSwitch;
u8 bArg;
} aSwitch[] = {
{ "create", 'c', AR_CMD_CREATE, 0 },
{ "extract", 'x', AR_CMD_EXTRACT, 0 },
{ "insert", 'i', AR_CMD_INSERT, 0 },
{ "list", 't', AR_CMD_LIST, 0 },
{ "remove", 'r', AR_CMD_REMOVE, 0 },
{ "update", 'u', AR_CMD_UPDATE, 0 },
{ "help", 'h', AR_CMD_HELP, 0 },
{ "verbose", 'v', AR_SWITCH_VERBOSE, 0 },
{ "file", 'f', AR_SWITCH_FILE, 1 },
{ "append", 'a', AR_SWITCH_APPEND, 1 },
{ "directory", 'C', AR_SWITCH_DIRECTORY, 1 },
{ "dryrun", 'n', AR_SWITCH_DRYRUN, 0 },
{ "glob", 'g', AR_SWITCH_GLOB, 0 },
};
int nSwitch = sizeof(aSwitch) / sizeof(struct ArSwitch);
struct ArSwitch *pEnd = &aSwitch[nSwitch];
if( nArg<=1 ){
utf8_printf(stderr, "Wrong number of arguments. Usage:\n");
return arUsage(stderr);
}else{
char *z = azArg[1];
if( z[0]!='-' ){
/* Traditional style [tar] invocation */
int i;
int iArg = 2;
for(i=0; z[i]; i++){
const char *zArg = 0;
struct ArSwitch *pOpt;
for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){
if( z[i]==pOpt->cShort ) break;
}
if( pOpt==pEnd ){
return arErrorMsg(pAr, "unrecognized option: %c", z[i]);
}
if( pOpt->bArg ){
if( iArg>=nArg ){
return arErrorMsg(pAr, "option requires an argument: %c",z[i]);
}
zArg = azArg[iArg++];
}
if( arProcessSwitch(pAr, pOpt->eSwitch, zArg) ) return SQLITE_ERROR;
}
pAr->nArg = nArg-iArg;
if( pAr->nArg>0 ){
pAr->azArg = &azArg[iArg];
}
}else{
/* Non-traditional invocation */
int iArg;
for(iArg=1; iArg<nArg; iArg++){
int n;
z = azArg[iArg];
if( z[0]!='-' ){
/* All remaining command line words are command arguments. */
pAr->azArg = &azArg[iArg];
pAr->nArg = nArg-iArg;
break;
}
n = strlen30(z);
if( z[1]!='-' ){
int i;
/* One or more short options */
for(i=1; i<n; i++){
const char *zArg = 0;
struct ArSwitch *pOpt;
for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){
if( z[i]==pOpt->cShort ) break;
}
if( pOpt==pEnd ){
return arErrorMsg(pAr, "unrecognized option: %c", z[i]);
}
if( pOpt->bArg ){
if( i<(n-1) ){
zArg = &z[i+1];
i = n;
}else{
if( iArg>=(nArg-1) ){
return arErrorMsg(pAr, "option requires an argument: %c",
z[i]);
}
zArg = azArg[++iArg];
}
}
if( arProcessSwitch(pAr, pOpt->eSwitch, zArg) ) return SQLITE_ERROR;
}
}else if( z[2]=='\0' ){
/* A -- option, indicating that all remaining command line words
** are command arguments. */
pAr->azArg = &azArg[iArg+1];
pAr->nArg = nArg-iArg-1;
break;
}else{
/* A long option */
const char *zArg = 0; /* Argument for option, if any */
struct ArSwitch *pMatch = 0; /* Matching option */
struct ArSwitch *pOpt; /* Iterator */
for(pOpt=&aSwitch[0]; pOpt<pEnd; pOpt++){
const char *zLong = pOpt->zLong;
if( (n-2)<=strlen30(zLong) && 0==memcmp(&z[2], zLong, n-2) ){
if( pMatch ){
return arErrorMsg(pAr, "ambiguous option: %s",z);
}else{
pMatch = pOpt;
}
}
}
if( pMatch==0 ){
return arErrorMsg(pAr, "unrecognized option: %s", z);
}
if( pMatch->bArg ){
if( iArg>=(nArg-1) ){
return arErrorMsg(pAr, "option requires an argument: %s", z);
}
zArg = azArg[++iArg];
}
if( arProcessSwitch(pAr, pMatch->eSwitch, zArg) ) return SQLITE_ERROR;
}
}
}
}
if( pAr->eCmd==0 ){
utf8_printf(stderr, "Required argument missing. Usage:\n");
return arUsage(stderr);
}
return SQLITE_OK;
}
/*
** This function assumes that all arguments within the ArCommand.azArg[]
** array refer to archive members, as for the --extract, --list or --remove
** commands. It checks that each of them are "present". If any specified
** file is not present in the archive, an error is printed to stderr and an
** error code returned. Otherwise, if all specified arguments are present
** in the archive, SQLITE_OK is returned. Here, "present" means either an
** exact equality when pAr->bGlob is false or a "name GLOB pattern" match
** when pAr->bGlob is true.
**
** This function strips any trailing '/' characters from each argument.
** This is consistent with the way the [tar] command seems to work on
** Linux.
*/
static int arCheckEntries(ArCommand *pAr){
int rc = SQLITE_OK;
if( pAr->nArg ){
int i, j;
sqlite3_stmt *pTest = 0;
const char *zSel = (pAr->bGlob)
? "SELECT name FROM %s WHERE glob($name,name)"
: "SELECT name FROM %s WHERE name=$name";
shellPreparePrintf(pAr->db, &rc, &pTest, zSel, pAr->zSrcTable);
j = sqlite3_bind_parameter_index(pTest, "$name");
for(i=0; i<pAr->nArg && rc==SQLITE_OK; i++){
char *z = pAr->azArg[i];
int n = strlen30(z);
int bOk = 0;
while( n>0 && z[n-1]=='/' ) n--;
z[n] = '\0';
sqlite3_bind_text(pTest, j, z, -1, SQLITE_STATIC);
if( SQLITE_ROW==sqlite3_step(pTest) ){
bOk = 1;
}
shellReset(&rc, pTest);
if( rc==SQLITE_OK && bOk==0 ){
utf8_printf(stderr, "not found in archive: %s\n", z);
rc = SQLITE_ERROR;
}
}
shellFinalize(&rc, pTest);
}
return rc;
}
/*
** Format a WHERE clause that can be used against the "sqlar" table to
** identify all archive members that match the command arguments held
** in (*pAr). Leave this WHERE clause in (*pzWhere) before returning.
** The caller is responsible for eventually calling sqlite3_free() on
** any non-NULL (*pzWhere) value. Here, "match" means strict equality
** when pAr->bGlob is false and GLOB match when pAr->bGlob is true.
*/
static void arWhereClause(
int *pRc,
ArCommand *pAr,
char **pzWhere /* OUT: New WHERE clause */
){
char *zWhere = 0;
const char *zSameOp = (pAr->bGlob)? "GLOB" : "=";
if( *pRc==SQLITE_OK ){
if( pAr->nArg==0 ){
zWhere = sqlite3_mprintf("1");
}else{
int i;
const char *zSep = "";
for(i=0; i<pAr->nArg; i++){
const char *z = pAr->azArg[i];
zWhere = sqlite3_mprintf(
"%z%s name %s '%q' OR substr(name,1,%d) %s '%q/'",
zWhere, zSep, zSameOp, z, strlen30(z)+1, zSameOp, z
);
if( zWhere==0 ){
*pRc = SQLITE_NOMEM;
break;
}
zSep = " OR ";
}
}
}
*pzWhere = zWhere;
}
/*
** Implementation of .ar "lisT" command.
*/
static int arListCommand(ArCommand *pAr){
const char *zSql = "SELECT %s FROM %s WHERE %s";
const char *azCols[] = {
"name",
"lsmode(mode), sz, datetime(mtime, 'unixepoch'), name"
};
char *zWhere = 0;
sqlite3_stmt *pSql = 0;
int rc;
rc = arCheckEntries(pAr);
arWhereClause(&rc, pAr, &zWhere);
shellPreparePrintf(pAr->db, &rc, &pSql, zSql, azCols[pAr->bVerbose],
pAr->zSrcTable, zWhere);
if( pAr->bDryRun ){
utf8_printf(pAr->p->out, "%s\n", sqlite3_sql(pSql));
}else{
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
if( pAr->bVerbose ){
utf8_printf(pAr->p->out, "%s % 10d %s %s\n",
sqlite3_column_text(pSql, 0),
sqlite3_column_int(pSql, 1),
sqlite3_column_text(pSql, 2),
sqlite3_column_text(pSql, 3)
);
}else{
utf8_printf(pAr->p->out, "%s\n", sqlite3_column_text(pSql, 0));
}
}
}
shellFinalize(&rc, pSql);
sqlite3_free(zWhere);
return rc;
}
/*
** Implementation of .ar "Remove" command.
*/
static int arRemoveCommand(ArCommand *pAr){
int rc = 0;
char *zSql = 0;
char *zWhere = 0;
if( pAr->nArg ){
/* Verify that args actually exist within the archive before proceeding.
** And formulate a WHERE clause to match them. */
rc = arCheckEntries(pAr);
arWhereClause(&rc, pAr, &zWhere);
}
if( rc==SQLITE_OK ){
zSql = sqlite3_mprintf("DELETE FROM %s WHERE %s;",
pAr->zSrcTable, zWhere);
if( pAr->bDryRun ){
utf8_printf(pAr->p->out, "%s\n", zSql);
}else{
char *zErr = 0;
rc = sqlite3_exec(pAr->db, "SAVEPOINT ar;", 0, 0, 0);
if( rc==SQLITE_OK ){
rc = sqlite3_exec(pAr->db, zSql, 0, 0, &zErr);
if( rc!=SQLITE_OK ){
sqlite3_exec(pAr->db, "ROLLBACK TO ar; RELEASE ar;", 0, 0, 0);
}else{
rc = sqlite3_exec(pAr->db, "RELEASE ar;", 0, 0, 0);
}
}
if( zErr ){
utf8_printf(stdout, "ERROR: %s\n", zErr);
sqlite3_free(zErr);
}
}
}
sqlite3_free(zWhere);
sqlite3_free(zSql);
return rc;
}
/*
** Implementation of .ar "eXtract" command.
*/
static int arExtractCommand(ArCommand *pAr){
const char *zSql1 =
"SELECT "
" ($dir || name),"
" writefile(($dir || name), %s, mode, mtime) "
"FROM %s WHERE (%s) AND (data IS NULL OR $dirOnly = 0)"
" AND name NOT GLOB '*..[/\\]*'";
const char *azExtraArg[] = {
"sqlar_uncompress(data, sz)",
"data"
};
sqlite3_stmt *pSql = 0;
int rc = SQLITE_OK;
char *zDir = 0;
char *zWhere = 0;
int i, j;
/* If arguments are specified, check that they actually exist within
** the archive before proceeding. And formulate a WHERE clause to
** match them. */
rc = arCheckEntries(pAr);
arWhereClause(&rc, pAr, &zWhere);
if( rc==SQLITE_OK ){
if( pAr->zDir ){
zDir = sqlite3_mprintf("%s/", pAr->zDir);
}else{
zDir = sqlite3_mprintf("");
}
if( zDir==0 ) rc = SQLITE_NOMEM;
}
shellPreparePrintf(pAr->db, &rc, &pSql, zSql1,
azExtraArg[pAr->bZip], pAr->zSrcTable, zWhere
);
if( rc==SQLITE_OK ){
j = sqlite3_bind_parameter_index(pSql, "$dir");
sqlite3_bind_text(pSql, j, zDir, -1, SQLITE_STATIC);
/* Run the SELECT statement twice. The first time, writefile() is called
** for all archive members that should be extracted. The second time,
** only for the directories. This is because the timestamps for
** extracted directories must be reset after they are populated (as
** populating them changes the timestamp). */
for(i=0; i<2; i++){
j = sqlite3_bind_parameter_index(pSql, "$dirOnly");
sqlite3_bind_int(pSql, j, i);
if( pAr->bDryRun ){
utf8_printf(pAr->p->out, "%s\n", sqlite3_sql(pSql));
}else{
while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pSql) ){
if( i==0 && pAr->bVerbose ){
utf8_printf(pAr->p->out, "%s\n", sqlite3_column_text(pSql, 0));
}
}
}
shellReset(&rc, pSql);
}
shellFinalize(&rc, pSql);
}
sqlite3_free(zDir);
sqlite3_free(zWhere);
return rc;
}
/*
** Run the SQL statement in zSql. Or if doing a --dryrun, merely print it out.
*/
static int arExecSql(ArCommand *pAr, const char *zSql){
int rc;
if( pAr->bDryRun ){
utf8_printf(pAr->p->out, "%s\n", zSql);
rc = SQLITE_OK;
}else{
char *zErr = 0;
rc = sqlite3_exec(pAr->db, zSql, 0, 0, &zErr);
if( zErr ){
utf8_printf(stdout, "ERROR: %s\n", zErr);
sqlite3_free(zErr);
}
}
return rc;
}
/*
** Implementation of .ar "create", "insert", and "update" commands.
**
** create -> Create a new SQL archive
** insert -> Insert or reinsert all files listed
** update -> Insert files that have changed or that were not
** previously in the archive
**
** Create the "sqlar" table in the database if it does not already exist.
** Then add each file in the azFile[] array to the archive. Directories
** are added recursively. If argument bVerbose is non-zero, a message is
** printed on stdout for each file archived.
**
** The create command is the same as update, except that it drops
** any existing "sqlar" table before beginning. The "insert" command
** always overwrites every file named on the command-line, where as
** "update" only overwrites if the size or mtime or mode has changed.
*/
static int arCreateOrUpdateCommand(
ArCommand *pAr, /* Command arguments and options */
int bUpdate, /* true for a --create. */
int bOnlyIfChanged /* Only update if file has changed */
){
const char *zCreate =
"CREATE TABLE IF NOT EXISTS sqlar(\n"
" name TEXT PRIMARY KEY, -- name of the file\n"
" mode INT, -- access permissions\n"
" mtime INT, -- last modification time\n"
" sz INT, -- original file size\n"
" data BLOB -- compressed content\n"
")";
const char *zDrop = "DROP TABLE IF EXISTS sqlar";
const char *zInsertFmt[2] = {
"REPLACE INTO %s(name,mode,mtime,sz,data)\n"
" SELECT\n"
" %s,\n"
" mode,\n"
" mtime,\n"
" CASE substr(lsmode(mode),1,1)\n"
" WHEN '-' THEN length(data)\n"
" WHEN 'd' THEN 0\n"
" ELSE -1 END,\n"
" sqlar_compress(data)\n"
" FROM fsdir(%Q,%Q) AS disk\n"
" WHERE lsmode(mode) NOT LIKE '?%%'%s;"
,
"REPLACE INTO %s(name,mode,mtime,data)\n"
" SELECT\n"
" %s,\n"
" mode,\n"
" mtime,\n"
" data\n"
" FROM fsdir(%Q,%Q) AS disk\n"
" WHERE lsmode(mode) NOT LIKE '?%%'%s;"
};
int i; /* For iterating through azFile[] */
int rc; /* Return code */
const char *zTab = 0; /* SQL table into which to insert */
char *zSql;
char zTemp[50];
char *zExists = 0;
arExecSql(pAr, "PRAGMA page_size=512");
rc = arExecSql(pAr, "SAVEPOINT ar;");
if( rc!=SQLITE_OK ) return rc;
zTemp[0] = 0;
if( pAr->bZip ){
/* Initialize the zipfile virtual table, if necessary */
if( pAr->zFile ){
sqlite3_uint64 r;
sqlite3_randomness(sizeof(r),&r);
sqlite3_snprintf(sizeof(zTemp),zTemp,"zip%016llx",r);
zTab = zTemp;
zSql = sqlite3_mprintf(
"CREATE VIRTUAL TABLE temp.%s USING zipfile(%Q)",
zTab, pAr->zFile
);
rc = arExecSql(pAr, zSql);
sqlite3_free(zSql);
}else{
zTab = "zip";
}
}else{
/* Initialize the table for an SQLAR */
zTab = "sqlar";
if( bUpdate==0 ){
rc = arExecSql(pAr, zDrop);
if( rc!=SQLITE_OK ) goto end_ar_transaction;
}
rc = arExecSql(pAr, zCreate);
}
if( bOnlyIfChanged ){
zExists = sqlite3_mprintf(
" AND NOT EXISTS("
"SELECT 1 FROM %s AS mem"
" WHERE mem.name=disk.name"
" AND mem.mtime=disk.mtime"
" AND mem.mode=disk.mode)", zTab);
}else{
zExists = sqlite3_mprintf("");
}
if( zExists==0 ) rc = SQLITE_NOMEM;
for(i=0; i<pAr->nArg && rc==SQLITE_OK; i++){
char *zSql2 = sqlite3_mprintf(zInsertFmt[pAr->bZip], zTab,
pAr->bVerbose ? "shell_putsnl(name)" : "name",
pAr->azArg[i], pAr->zDir, zExists);
rc = arExecSql(pAr, zSql2);
sqlite3_free(zSql2);
}
end_ar_transaction:
if( rc!=SQLITE_OK ){
sqlite3_exec(pAr->db, "ROLLBACK TO ar; RELEASE ar;", 0, 0, 0);
}else{
rc = arExecSql(pAr, "RELEASE ar;");
if( pAr->bZip && pAr->zFile ){
zSql = sqlite3_mprintf("DROP TABLE %s", zTemp);
arExecSql(pAr, zSql);
sqlite3_free(zSql);
}
}
sqlite3_free(zExists);
return rc;
}
/*
** Implementation of ".ar" dot command.
*/
static int arDotCommand(
ShellState *pState, /* Current shell tool state */
int fromCmdLine, /* True if -A command-line option, not .ar cmd */
char **azArg, /* Array of arguments passed to dot command */
int nArg /* Number of entries in azArg[] */
){
ArCommand cmd;
int rc;
memset(&cmd, 0, sizeof(cmd));
cmd.fromCmdLine = fromCmdLine;
rc = arParseCommand(azArg, nArg, &cmd);
if( rc==SQLITE_OK ){
int eDbType = SHELL_OPEN_UNSPEC;
cmd.p = pState;
cmd.db = pState->db;
if( cmd.zFile ){
eDbType = deduceDatabaseType(cmd.zFile, 1);
}else{
eDbType = pState->openMode;
}
if( eDbType==SHELL_OPEN_ZIPFILE ){
if( cmd.eCmd==AR_CMD_EXTRACT || cmd.eCmd==AR_CMD_LIST ){
if( cmd.zFile==0 ){
cmd.zSrcTable = sqlite3_mprintf("zip");
}else{
cmd.zSrcTable = sqlite3_mprintf("zipfile(%Q)", cmd.zFile);
}
}
cmd.bZip = 1;
}else if( cmd.zFile ){
int flags;
if( cmd.bAppend ) eDbType = SHELL_OPEN_APPENDVFS;
if( cmd.eCmd==AR_CMD_CREATE || cmd.eCmd==AR_CMD_INSERT
|| cmd.eCmd==AR_CMD_REMOVE || cmd.eCmd==AR_CMD_UPDATE ){
flags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
}else{
flags = SQLITE_OPEN_READONLY;
}
cmd.db = 0;
if( cmd.bDryRun ){
utf8_printf(pState->out, "-- open database '%s'%s\n", cmd.zFile,
eDbType==SHELL_OPEN_APPENDVFS ? " using 'apndvfs'" : "");
}
rc = sqlite3_open_v2(cmd.zFile, &cmd.db, flags,
eDbType==SHELL_OPEN_APPENDVFS ? "apndvfs" : 0);
if( rc!=SQLITE_OK ){
utf8_printf(stderr, "cannot open file: %s (%s)\n",
cmd.zFile, sqlite3_errmsg(cmd.db)
);
goto end_ar_command;
}
sqlite3_fileio_init(cmd.db, 0, 0);
sqlite3_sqlar_init(cmd.db, 0, 0);
sqlite3_create_function(cmd.db, "shell_putsnl", 1, SQLITE_UTF8, cmd.p,
shellPutsFunc, 0, 0);
}
if( cmd.zSrcTable==0 && cmd.bZip==0 && cmd.eCmd!=AR_CMD_HELP ){
if( cmd.eCmd!=AR_CMD_CREATE
&& sqlite3_table_column_metadata(cmd.db,0,"sqlar","name",0,0,0,0,0)
){
utf8_printf(stderr, "database does not contain an 'sqlar' table\n");
rc = SQLITE_ERROR;
goto end_ar_command;
}
cmd.zSrcTable = sqlite3_mprintf("sqlar");
}
switch( cmd.eCmd ){
case AR_CMD_CREATE:
rc = arCreateOrUpdateCommand(&cmd, 0, 0);
break;
case AR_CMD_EXTRACT:
rc = arExtractCommand(&cmd);
break;
case AR_CMD_LIST:
rc = arListCommand(&cmd);
break;
case AR_CMD_HELP:
arUsage(pState->out);
break;
case AR_CMD_INSERT:
rc = arCreateOrUpdateCommand(&cmd, 1, 0);
break;
case AR_CMD_REMOVE:
rc = arRemoveCommand(&cmd);
break;
default:
assert( cmd.eCmd==AR_CMD_UPDATE );
rc = arCreateOrUpdateCommand(&cmd, 1, 1);
break;
}
}
end_ar_command:
if( cmd.db!=pState->db ){
close_db(cmd.db);
}
sqlite3_free(cmd.zSrcTable);
return rc;
}
/* End of the ".archive" or ".ar" command logic
*******************************************************************************/
#endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) */
#if SQLITE_SHELL_HAVE_RECOVER
/*
** This function is used as a callback by the recover extension. Simply
** print the supplied SQL statement to stdout.
*/
static int recoverSqlCb(void *pCtx, const char *zSql){
ShellState *pState = (ShellState*)pCtx;
utf8_printf(pState->out, "%s;\n", zSql);
return SQLITE_OK;
}
/*
** This function is called to recover data from the database. A script
** to construct a new database containing all recovered data is output
** on stream pState->out.
*/
static int recoverDatabaseCmd(ShellState *pState, int nArg, char **azArg){
int rc = SQLITE_OK;
const char *zRecoveryDb = ""; /* Name of "recovery" database. Debug only */
const char *zLAF = "lost_and_found";
int bFreelist = 1; /* 0 if --ignore-freelist is specified */
int bRowids = 1; /* 0 if --no-rowids */
sqlite3_recover *p = 0;
int i = 0;
for(i=1; i<nArg; i++){
char *z = azArg[i];
int n;
if( z[0]=='-' && z[1]=='-' ) z++;
n = strlen30(z);
if( n<=17 && memcmp("-ignore-freelist", z, n)==0 ){
bFreelist = 0;
}else
if( n<=12 && memcmp("-recovery-db", z, n)==0 && i<(nArg-1) ){
/* This option determines the name of the ATTACH-ed database used
** internally by the recovery extension. The default is "" which
** means to use a temporary database that is automatically deleted
** when closed. This option is undocumented and might disappear at
** any moment. */
i++;
zRecoveryDb = azArg[i];
}else
if( n<=15 && memcmp("-lost-and-found", z, n)==0 && i<(nArg-1) ){
i++;
zLAF = azArg[i];
}else
if( n<=10 && memcmp("-no-rowids", z, n)==0 ){
bRowids = 0;
}
else{
utf8_printf(stderr, "unexpected option: %s\n", azArg[i]);
showHelp(pState->out, azArg[0]);
return 1;
}
}
p = sqlite3_recover_init_sql(
pState->db, "main", recoverSqlCb, (void*)pState
);
sqlite3_recover_config(p, 789, (void*)zRecoveryDb); /* Debug use only */
sqlite3_recover_config(p, SQLITE_RECOVER_LOST_AND_FOUND, (void*)zLAF);
sqlite3_recover_config(p, SQLITE_RECOVER_ROWIDS, (void*)&bRowids);
sqlite3_recover_config(p, SQLITE_RECOVER_FREELIST_CORRUPT,(void*)&bFreelist);
sqlite3_recover_run(p);
if( sqlite3_recover_errcode(p)!=SQLITE_OK ){
const char *zErr = sqlite3_recover_errmsg(p);
int errCode = sqlite3_recover_errcode(p);
raw_printf(stderr, "sql error: %s (%d)\n", zErr, errCode);
}
rc = sqlite3_recover_finish(p);
return rc;
}
#endif /* SQLITE_SHELL_HAVE_RECOVER */
/*
* zAutoColumn(zCol, &db, ?) => Maybe init db, add column zCol to it.
* zAutoColumn(0, &db, ?) => (db!=0) Form columns spec for CREATE TABLE,
* close db and set it to 0, and return the columns spec, to later
* be sqlite3_free()'ed by the caller.
* The return is 0 when either:
* (a) The db was not initialized and zCol==0 (There are no columns.)
* (b) zCol!=0 (Column was added, db initialized as needed.)
* The 3rd argument, pRenamed, references an out parameter. If the
* pointer is non-zero, its referent will be set to a summary of renames
* done if renaming was necessary, or set to 0 if none was done. The out
* string (if any) must be sqlite3_free()'ed by the caller.
*/
#ifdef SHELL_DEBUG
#define rc_err_oom_die(rc) \
if( rc==SQLITE_NOMEM ) shell_check_oom(0); \
else if(!(rc==SQLITE_OK||rc==SQLITE_DONE)) \
fprintf(stderr,"E:%d\n",rc), assert(0)
#else
static void rc_err_oom_die(int rc){
if( rc==SQLITE_NOMEM ) shell_check_oom(0);
assert(rc==SQLITE_OK||rc==SQLITE_DONE);
}
#endif
#ifdef SHELL_COLFIX_DB /* If this is set, the DB can be in a file. */
static char zCOL_DB[] = SHELL_STRINGIFY(SHELL_COLFIX_DB);
#else /* Otherwise, memory is faster/better for the transient DB. */
static const char *zCOL_DB = ":memory:";
#endif
/* Define character (as C string) to separate generated column ordinal
* from protected part of incoming column names. This defaults to "_"
* so that incoming column identifiers that did not need not be quoted
* remain usable without being quoted. It must be one character.
*/
#ifndef SHELL_AUTOCOLUMN_SEP
# define AUTOCOLUMN_SEP "_"
#else
# define AUTOCOLUMN_SEP SHELL_STRINGIFY(SHELL_AUTOCOLUMN_SEP)
#endif
static char *zAutoColumn(const char *zColNew, sqlite3 **pDb, char **pzRenamed){
/* Queries and D{D,M}L used here */
static const char * const zTabMake = "\
CREATE TABLE ColNames(\
cpos INTEGER PRIMARY KEY,\
name TEXT, nlen INT, chop INT, reps INT, suff TEXT);\
CREATE VIEW RepeatedNames AS \
SELECT DISTINCT t.name FROM ColNames t \
WHERE t.name COLLATE NOCASE IN (\
SELECT o.name FROM ColNames o WHERE o.cpos<>t.cpos\
);\
";
static const char * const zTabFill = "\
INSERT INTO ColNames(name,nlen,chop,reps,suff)\
VALUES(iif(length(?1)>0,?1,'?'),max(length(?1),1),0,0,'')\
";
static const char * const zHasDupes = "\
SELECT count(DISTINCT (substring(name,1,nlen-chop)||suff) COLLATE NOCASE)\
<count(name) FROM ColNames\
";
#ifdef SHELL_COLUMN_RENAME_CLEAN
static const char * const zDedoctor = "\
UPDATE ColNames SET chop=iif(\
(substring(name,nlen,1) BETWEEN '0' AND '9')\
AND (rtrim(name,'0123456790') glob '*"AUTOCOLUMN_SEP"'),\
nlen-length(rtrim(name, '"AUTOCOLUMN_SEP"0123456789')),\
0\
)\
";
#endif
static const char * const zSetReps = "\
UPDATE ColNames AS t SET reps=\
(SELECT count(*) FROM ColNames d \
WHERE substring(t.name,1,t.nlen-t.chop)=substring(d.name,1,d.nlen-d.chop)\
COLLATE NOCASE\
)\
";
#ifdef SQLITE_ENABLE_MATH_FUNCTIONS
static const char * const zColDigits = "\
SELECT CAST(ceil(log(count(*)+0.5)) AS INT) FROM ColNames \
";
#else
/* Counting on SQLITE_MAX_COLUMN < 100,000 here. (32767 is the hard limit.) */
static const char * const zColDigits = "\
SELECT CASE WHEN (nc < 10) THEN 1 WHEN (nc < 100) THEN 2 \
WHEN (nc < 1000) THEN 3 WHEN (nc < 10000) THEN 4 \
ELSE 5 FROM (SELECT count(*) AS nc FROM ColNames) \
";
#endif
static const char * const zRenameRank =
#ifdef SHELL_COLUMN_RENAME_CLEAN
"UPDATE ColNames AS t SET suff="
"iif(reps>1, printf('%c%0*d', '"AUTOCOLUMN_SEP"', $1, cpos), '')"
#else /* ...RENAME_MINIMAL_ONE_PASS */
"WITH Lzn(nlz) AS (" /* Find minimum extraneous leading 0's for uniqueness */
" SELECT 0 AS nlz"
" UNION"
" SELECT nlz+1 AS nlz FROM Lzn"
" WHERE EXISTS("
" SELECT 1"
" FROM ColNames t, ColNames o"
" WHERE"
" iif(t.name IN (SELECT * FROM RepeatedNames),"
" printf('%s"AUTOCOLUMN_SEP"%s',"
" t.name, substring(printf('%.*c%0.*d',nlz+1,'0',$1,t.cpos),2)),"
" t.name"
" )"
" ="
" iif(o.name IN (SELECT * FROM RepeatedNames),"
" printf('%s"AUTOCOLUMN_SEP"%s',"
" o.name, substring(printf('%.*c%0.*d',nlz+1,'0',$1,o.cpos),2)),"
" o.name"
" )"
" COLLATE NOCASE"
" AND o.cpos<>t.cpos"
" GROUP BY t.cpos"
" )"
") UPDATE Colnames AS t SET"
" chop = 0," /* No chopping, never touch incoming names. */
" suff = iif(name IN (SELECT * FROM RepeatedNames),"
" printf('"AUTOCOLUMN_SEP"%s', substring("
" printf('%.*c%0.*d',(SELECT max(nlz) FROM Lzn)+1,'0',1,t.cpos),2)),"
" ''"
" )"
#endif
;
static const char * const zCollectVar = "\
SELECT\
'('||x'0a'\
|| group_concat(\
cname||' TEXT',\
','||iif((cpos-1)%4>0, ' ', x'0a'||' '))\
||')' AS ColsSpec \
FROM (\
SELECT cpos, printf('\"%w\"',printf('%!.*s%s', nlen-chop,name,suff)) AS cname \
FROM ColNames ORDER BY cpos\
)";
static const char * const zRenamesDone =
"SELECT group_concat("
" printf('\"%w\" to \"%w\"',name,printf('%!.*s%s', nlen-chop, name, suff)),"
" ','||x'0a')"
"FROM ColNames WHERE suff<>'' OR chop!=0"
;
int rc;
sqlite3_stmt *pStmt = 0;
assert(pDb!=0);
if( zColNew ){
/* Add initial or additional column. Init db if necessary. */
if( *pDb==0 ){
if( SQLITE_OK!=sqlite3_open(zCOL_DB, pDb) ) return 0;
#ifdef SHELL_COLFIX_DB
if(*zCOL_DB!=':')
sqlite3_exec(*pDb,"drop table if exists ColNames;"
"drop view if exists RepeatedNames;",0,0,0);
#endif
rc = sqlite3_exec(*pDb, zTabMake, 0, 0, 0);
rc_err_oom_die(rc);
}
assert(*pDb!=0);
rc = sqlite3_prepare_v2(*pDb, zTabFill, -1, &pStmt, 0);
rc_err_oom_die(rc);
rc = sqlite3_bind_text(pStmt, 1, zColNew, -1, 0);
rc_err_oom_die(rc);
rc = sqlite3_step(pStmt);
rc_err_oom_die(rc);
sqlite3_finalize(pStmt);
return 0;
}else if( *pDb==0 ){
return 0;
}else{
/* Formulate the columns spec, close the DB, zero *pDb. */
char *zColsSpec = 0;
int hasDupes = db_int(*pDb, zHasDupes);
int nDigits = (hasDupes)? db_int(*pDb, zColDigits) : 0;
if( hasDupes ){
#ifdef SHELL_COLUMN_RENAME_CLEAN
rc = sqlite3_exec(*pDb, zDedoctor, 0, 0, 0);
rc_err_oom_die(rc);
#endif
rc = sqlite3_exec(*pDb, zSetReps, 0, 0, 0);
rc_err_oom_die(rc);
rc = sqlite3_prepare_v2(*pDb, zRenameRank, -1, &pStmt, 0);
rc_err_oom_die(rc);
sqlite3_bind_int(pStmt, 1, nDigits);
rc = sqlite3_step(pStmt);
sqlite3_finalize(pStmt);
if( rc!=SQLITE_DONE ) rc_err_oom_die(SQLITE_NOMEM);
}
assert(db_int(*pDb, zHasDupes)==0); /* Consider: remove this */
rc = sqlite3_prepare_v2(*pDb, zCollectVar, -1, &pStmt, 0);
rc_err_oom_die(rc);
rc = sqlite3_step(pStmt);
if( rc==SQLITE_ROW ){
zColsSpec = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
}else{
zColsSpec = 0;
}
if( pzRenamed!=0 ){
if( !hasDupes ) *pzRenamed = 0;
else{
sqlite3_finalize(pStmt);
if( SQLITE_OK==sqlite3_prepare_v2(*pDb, zRenamesDone, -1, &pStmt, 0)
&& SQLITE_ROW==sqlite3_step(pStmt) ){
*pzRenamed = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
}else
*pzRenamed = 0;
}
}
sqlite3_finalize(pStmt);
sqlite3_close(*pDb);
*pDb = 0;
return zColsSpec;
}
}
/*
** If an input line begins with "." then invoke this routine to
** process that line.
**
** Return 1 on error, 2 to exit, and 0 otherwise.
*/
static int do_meta_command(char *zLine, ShellState *p){
int h = 1;
int nArg = 0;
int n, c;
int rc = 0;
char *azArg[52];
#ifndef SQLITE_OMIT_VIRTUALTABLE
if( p->expert.pExpert ){
expertFinish(p, 1, 0);
}
#endif
/* Parse the input line into tokens.
*/
while( zLine[h] && nArg<ArraySize(azArg)-1 ){
while( IsSpace(zLine[h]) ){ h++; }
if( zLine[h]==0 ) break;
if( zLine[h]=='\'' || zLine[h]=='"' ){
int delim = zLine[h++];
azArg[nArg++] = &zLine[h];
while( zLine[h] && zLine[h]!=delim ){
if( zLine[h]=='\\' && delim=='"' && zLine[h+1]!=0 ) h++;
h++;
}
if( zLine[h]==delim ){
zLine[h++] = 0;
}
if( delim=='"' ) resolve_backslashes(azArg[nArg-1]);
}else{
azArg[nArg++] = &zLine[h];
while( zLine[h] && !IsSpace(zLine[h]) ){ h++; }
if( zLine[h] ) zLine[h++] = 0;
resolve_backslashes(azArg[nArg-1]);
}
}
azArg[nArg] = 0;
/* Process the input line.
*/
if( nArg==0 ) return 0; /* no tokens, no error */
n = strlen30(azArg[0]);
c = azArg[0][0];
clearTempFile(p);
#ifndef SQLITE_OMIT_AUTHORIZATION
if( c=='a' && cli_strncmp(azArg[0], "auth", n)==0 ){
if( nArg!=2 ){
raw_printf(stderr, "Usage: .auth ON|OFF\n");
rc = 1;
goto meta_command_exit;
}
open_db(p, 0);
if( booleanValue(azArg[1]) ){
sqlite3_set_authorizer(p->db, shellAuth, p);
}else if( p->bSafeModePersist ){
sqlite3_set_authorizer(p->db, safeModeAuth, p);
}else{
sqlite3_set_authorizer(p->db, 0, 0);
}
}else
#endif
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB) \
&& !defined(SQLITE_SHELL_FIDDLE)
if( c=='a' && cli_strncmp(azArg[0], "archive", n)==0 ){
open_db(p, 0);
failIfSafeMode(p, "cannot run .archive in safe mode");
rc = arDotCommand(p, 0, azArg, nArg);
}else
#endif
#ifndef SQLITE_SHELL_FIDDLE
if( (c=='b' && n>=3 && cli_strncmp(azArg[0], "backup", n)==0)
|| (c=='s' && n>=3 && cli_strncmp(azArg[0], "save", n)==0)
){
const char *zDestFile = 0;
const char *zDb = 0;
sqlite3 *pDest;
sqlite3_backup *pBackup;
int j;
int bAsync = 0;
const char *zVfs = 0;
failIfSafeMode(p, "cannot run .%s in safe mode", azArg[0]);
for(j=1; j<nArg; j++){
const char *z = azArg[j];
if( z[0]=='-' ){
if( z[1]=='-' ) z++;
if( cli_strcmp(z, "-append")==0 ){
zVfs = "apndvfs";
}else
if( cli_strcmp(z, "-async")==0 ){
bAsync = 1;
}else
{
utf8_printf(stderr, "unknown option: %s\n", azArg[j]);
return 1;
}
}else if( zDestFile==0 ){
zDestFile = azArg[j];
}else if( zDb==0 ){
zDb = zDestFile;
zDestFile = azArg[j];
}else{
raw_printf(stderr, "Usage: .backup ?DB? ?OPTIONS? FILENAME\n");
return 1;
}
}
if( zDestFile==0 ){
raw_printf(stderr, "missing FILENAME argument on .backup\n");
return 1;
}
if( zDb==0 ) zDb = "main";
rc = sqlite3_open_v2(zDestFile, &pDest,
SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE, zVfs);
if( rc!=SQLITE_OK ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", zDestFile);
close_db(pDest);
return 1;
}
if( bAsync ){
sqlite3_exec(pDest, "PRAGMA synchronous=OFF; PRAGMA journal_mode=OFF;",
0, 0, 0);
}
open_db(p, 0);
pBackup = sqlite3_backup_init(pDest, "main", p->db, zDb);
if( pBackup==0 ){
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
close_db(pDest);
return 1;
}
while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK ){}
sqlite3_backup_finish(pBackup);
if( rc==SQLITE_DONE ){
rc = 0;
}else{
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(pDest));
rc = 1;
}
close_db(pDest);
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='b' && n>=3 && cli_strncmp(azArg[0], "bail", n)==0 ){
if( nArg==2 ){
bail_on_error = booleanValue(azArg[1]);
}else{
raw_printf(stderr, "Usage: .bail on|off\n");
rc = 1;
}
}else
/* Undocumented. Legacy only. See "crnl" below */
if( c=='b' && n>=3 && cli_strncmp(azArg[0], "binary", n)==0 ){
if( nArg==2 ){
if( booleanValue(azArg[1]) ){
setBinaryMode(p->out, 1);
}else{
setTextMode(p->out, 1);
}
}else{
raw_printf(stderr, "The \".binary\" command is deprecated."
" Use \".crnl\" instead.\n");
raw_printf(stderr, "Usage: .binary on|off\n");
rc = 1;
}
}else
/* The undocumented ".breakpoint" command causes a call to the no-op
** routine named test_breakpoint().
*/
if( c=='b' && n>=3 && cli_strncmp(azArg[0], "breakpoint", n)==0 ){
test_breakpoint();
}else
#ifndef SQLITE_SHELL_FIDDLE
if( c=='c' && cli_strcmp(azArg[0],"cd")==0 ){
failIfSafeMode(p, "cannot run .cd in safe mode");
if( nArg==2 ){
#if defined(_WIN32) || defined(WIN32)
wchar_t *z = sqlite3_win32_utf8_to_unicode(azArg[1]);
rc = !SetCurrentDirectoryW(z);
sqlite3_free(z);
#else
rc = chdir(azArg[1]);
#endif
if( rc ){
utf8_printf(stderr, "Cannot change to directory \"%s\"\n", azArg[1]);
rc = 1;
}
}else{
raw_printf(stderr, "Usage: .cd DIRECTORY\n");
rc = 1;
}
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='c' && n>=3 && cli_strncmp(azArg[0], "changes", n)==0 ){
if( nArg==2 ){
setOrClearFlag(p, SHFLG_CountChanges, azArg[1]);
}else{
raw_printf(stderr, "Usage: .changes on|off\n");
rc = 1;
}
}else
#ifndef SQLITE_SHELL_FIDDLE
/* Cancel output redirection, if it is currently set (by .testcase)
** Then read the content of the testcase-out.txt file and compare against
** azArg[1]. If there are differences, report an error and exit.
*/
if( c=='c' && n>=3 && cli_strncmp(azArg[0], "check", n)==0 ){
char *zRes = 0;
output_reset(p);
if( nArg!=2 ){
raw_printf(stderr, "Usage: .check GLOB-PATTERN\n");
rc = 2;
}else if( (zRes = readFile("testcase-out.txt", 0))==0 ){
rc = 2;
}else if( testcase_glob(azArg[1],zRes)==0 ){
utf8_printf(stderr,
"testcase-%s FAILED\n Expected: [%s]\n Got: [%s]\n",
p->zTestcase, azArg[1], zRes);
rc = 1;
}else{
utf8_printf(stdout, "testcase-%s ok\n", p->zTestcase);
p->nCheck++;
}
sqlite3_free(zRes);
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
#ifndef SQLITE_SHELL_FIDDLE
if( c=='c' && cli_strncmp(azArg[0], "clone", n)==0 ){
failIfSafeMode(p, "cannot run .clone in safe mode");
if( nArg==2 ){
tryToClone(p, azArg[1]);
}else{
raw_printf(stderr, "Usage: .clone FILENAME\n");
rc = 1;
}
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='c' && cli_strncmp(azArg[0], "connection", n)==0 ){
if( nArg==1 ){
/* List available connections */
int i;
for(i=0; i<ArraySize(p->aAuxDb); i++){
const char *zFile = p->aAuxDb[i].zDbFilename;
if( p->aAuxDb[i].db==0 && p->pAuxDb!=&p->aAuxDb[i] ){
zFile = "(not open)";
}else if( zFile==0 ){
zFile = "(memory)";
}else if( zFile[0]==0 ){
zFile = "(temporary-file)";
}
if( p->pAuxDb == &p->aAuxDb[i] ){
utf8_printf(stdout, "ACTIVE %d: %s\n", i, zFile);
}else if( p->aAuxDb[i].db!=0 ){
utf8_printf(stdout, " %d: %s\n", i, zFile);
}
}
}else if( nArg==2 && IsDigit(azArg[1][0]) && azArg[1][1]==0 ){
int i = azArg[1][0] - '0';
if( p->pAuxDb != &p->aAuxDb[i] && i>=0 && i<ArraySize(p->aAuxDb) ){
p->pAuxDb->db = p->db;
p->pAuxDb = &p->aAuxDb[i];
globalDb = p->db = p->pAuxDb->db;
p->pAuxDb->db = 0;
}
}else if( nArg==3 && cli_strcmp(azArg[1], "close")==0
&& IsDigit(azArg[2][0]) && azArg[2][1]==0 ){
int i = azArg[2][0] - '0';
if( i<0 || i>=ArraySize(p->aAuxDb) ){
/* No-op */
}else if( p->pAuxDb == &p->aAuxDb[i] ){
raw_printf(stderr, "cannot close the active database connection\n");
rc = 1;
}else if( p->aAuxDb[i].db ){
session_close_all(p, i);
close_db(p->aAuxDb[i].db);
p->aAuxDb[i].db = 0;
}
}else{
raw_printf(stderr, "Usage: .connection [close] [CONNECTION-NUMBER]\n");
rc = 1;
}
}else
if( c=='c' && n==4 && cli_strncmp(azArg[0], "crnl", n)==0 ){
if( nArg==2 ){
if( booleanValue(azArg[1]) ){
setTextMode(p->out, 1);
}else{
setBinaryMode(p->out, 1);
}
}else{
#if !defined(_WIN32) && !defined(WIN32)
raw_printf(stderr, "The \".crnl\" is a no-op on non-Windows machines.\n");
#endif
raw_printf(stderr, "Usage: .crnl on|off\n");
rc = 1;
}
}else
if( c=='d' && n>1 && cli_strncmp(azArg[0], "databases", n)==0 ){
char **azName = 0;
int nName = 0;
sqlite3_stmt *pStmt;
int i;
open_db(p, 0);
rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0);
if( rc ){
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
rc = 1;
}else{
while( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *zSchema = (const char *)sqlite3_column_text(pStmt,1);
const char *zFile = (const char*)sqlite3_column_text(pStmt,2);
if( zSchema==0 || zFile==0 ) continue;
azName = sqlite3_realloc(azName, (nName+1)*2*sizeof(char*));
shell_check_oom(azName);
azName[nName*2] = strdup(zSchema);
azName[nName*2+1] = strdup(zFile);
nName++;
}
}
sqlite3_finalize(pStmt);
for(i=0; i<nName; i++){
int eTxn = sqlite3_txn_state(p->db, azName[i*2]);
int bRdonly = sqlite3_db_readonly(p->db, azName[i*2]);
const char *z = azName[i*2+1];
utf8_printf(p->out, "%s: %s %s%s\n",
azName[i*2],
z && z[0] ? z : "\"\"",
bRdonly ? "r/o" : "r/w",
eTxn==SQLITE_TXN_NONE ? "" :
eTxn==SQLITE_TXN_READ ? " read-txn" : " write-txn");
free(azName[i*2]);
free(azName[i*2+1]);
}
sqlite3_free(azName);
}else
if( c=='d' && n>=3 && cli_strncmp(azArg[0], "dbconfig", n)==0 ){
static const struct DbConfigChoices {
const char *zName;
int op;
} aDbConfig[] = {
{ "defensive", SQLITE_DBCONFIG_DEFENSIVE },
{ "dqs_ddl", SQLITE_DBCONFIG_DQS_DDL },
{ "dqs_dml", SQLITE_DBCONFIG_DQS_DML },
{ "enable_fkey", SQLITE_DBCONFIG_ENABLE_FKEY },
{ "enable_qpsg", SQLITE_DBCONFIG_ENABLE_QPSG },
{ "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER },
{ "enable_view", SQLITE_DBCONFIG_ENABLE_VIEW },
{ "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
{ "legacy_alter_table", SQLITE_DBCONFIG_LEGACY_ALTER_TABLE },
{ "legacy_file_format", SQLITE_DBCONFIG_LEGACY_FILE_FORMAT },
{ "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
{ "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },
{ "reset_database", SQLITE_DBCONFIG_RESET_DATABASE },
{ "reverse_scanorder", SQLITE_DBCONFIG_REVERSE_SCANORDER },
{ "stmt_scanstatus", SQLITE_DBCONFIG_STMT_SCANSTATUS },
{ "trigger_eqp", SQLITE_DBCONFIG_TRIGGER_EQP },
{ "trusted_schema", SQLITE_DBCONFIG_TRUSTED_SCHEMA },
{ "writable_schema", SQLITE_DBCONFIG_WRITABLE_SCHEMA },
};
int ii, v;
open_db(p, 0);
for(ii=0; ii<ArraySize(aDbConfig); ii++){
if( nArg>1 && cli_strcmp(azArg[1], aDbConfig[ii].zName)!=0 ) continue;
if( nArg>=3 ){
sqlite3_db_config(p->db, aDbConfig[ii].op, booleanValue(azArg[2]), 0);
}
sqlite3_db_config(p->db, aDbConfig[ii].op, -1, &v);
utf8_printf(p->out, "%19s %s\n", aDbConfig[ii].zName, v ? "on" : "off");
if( nArg>1 ) break;
}
if( nArg>1 && ii==ArraySize(aDbConfig) ){
utf8_printf(stderr, "Error: unknown dbconfig \"%s\"\n", azArg[1]);
utf8_printf(stderr, "Enter \".dbconfig\" with no arguments for a list\n");
}
}else
#if SQLITE_SHELL_HAVE_RECOVER
if( c=='d' && n>=3 && cli_strncmp(azArg[0], "dbinfo", n)==0 ){
rc = shell_dbinfo_command(p, nArg, azArg);
}else
if( c=='r' && cli_strncmp(azArg[0], "recover", n)==0 ){
open_db(p, 0);
rc = recoverDatabaseCmd(p, nArg, azArg);
}else
#endif /* SQLITE_SHELL_HAVE_RECOVER */
if( c=='d' && cli_strncmp(azArg[0], "dump", n)==0 ){
char *zLike = 0;
char *zSql;
int i;
int savedShowHeader = p->showHeader;
int savedShellFlags = p->shellFlgs;
ShellClearFlag(p,
SHFLG_PreserveRowid|SHFLG_Newlines|SHFLG_Echo
|SHFLG_DumpDataOnly|SHFLG_DumpNoSys);
for(i=1; i<nArg; i++){
if( azArg[i][0]=='-' ){
const char *z = azArg[i]+1;
if( z[0]=='-' ) z++;
if( cli_strcmp(z,"preserve-rowids")==0 ){
#ifdef SQLITE_OMIT_VIRTUALTABLE
raw_printf(stderr, "The --preserve-rowids option is not compatible"
" with SQLITE_OMIT_VIRTUALTABLE\n");
rc = 1;
sqlite3_free(zLike);
goto meta_command_exit;
#else
ShellSetFlag(p, SHFLG_PreserveRowid);
#endif
}else
if( cli_strcmp(z,"newlines")==0 ){
ShellSetFlag(p, SHFLG_Newlines);
}else
if( cli_strcmp(z,"data-only")==0 ){
ShellSetFlag(p, SHFLG_DumpDataOnly);
}else
if( cli_strcmp(z,"nosys")==0 ){
ShellSetFlag(p, SHFLG_DumpNoSys);
}else
{
raw_printf(stderr, "Unknown option \"%s\" on \".dump\"\n", azArg[i]);
rc = 1;
sqlite3_free(zLike);
goto meta_command_exit;
}
}else{
/* azArg[i] contains a LIKE pattern. This ".dump" request should
** only dump data for tables for which either the table name matches
** the LIKE pattern, or the table appears to be a shadow table of
** a virtual table for which the name matches the LIKE pattern.
*/
char *zExpr = sqlite3_mprintf(
"name LIKE %Q ESCAPE '\\' OR EXISTS ("
" SELECT 1 FROM sqlite_schema WHERE "
" name LIKE %Q ESCAPE '\\' AND"
" sql LIKE 'CREATE VIRTUAL TABLE%%' AND"
" substr(o.name, 1, length(name)+1) == (name||'_')"
")", azArg[i], azArg[i]
);
if( zLike ){
zLike = sqlite3_mprintf("%z OR %z", zLike, zExpr);
}else{
zLike = zExpr;
}
}
}
open_db(p, 0);
if( (p->shellFlgs & SHFLG_DumpDataOnly)==0 ){
/* When playing back a "dump", the content might appear in an order
** which causes immediate foreign key constraints to be violated.
** So disable foreign-key constraint enforcement to prevent problems. */
raw_printf(p->out, "PRAGMA foreign_keys=OFF;\n");
raw_printf(p->out, "BEGIN TRANSACTION;\n");
}
p->writableSchema = 0;
p->showHeader = 0;
/* Set writable_schema=ON since doing so forces SQLite to initialize
** as much of the schema as it can even if the sqlite_schema table is
** corrupt. */
sqlite3_exec(p->db, "SAVEPOINT dump; PRAGMA writable_schema=ON", 0, 0, 0);
p->nErr = 0;
if( zLike==0 ) zLike = sqlite3_mprintf("true");
zSql = sqlite3_mprintf(
"SELECT name, type, sql FROM sqlite_schema AS o "
"WHERE (%s) AND type=='table'"
" AND sql NOT NULL"
" ORDER BY tbl_name='sqlite_sequence', rowid",
zLike
);
run_schema_dump_query(p,zSql);
sqlite3_free(zSql);
if( (p->shellFlgs & SHFLG_DumpDataOnly)==0 ){
zSql = sqlite3_mprintf(
"SELECT sql FROM sqlite_schema AS o "
"WHERE (%s) AND sql NOT NULL"
" AND type IN ('index','trigger','view')",
zLike
);
run_table_dump_query(p, zSql);
sqlite3_free(zSql);
}
sqlite3_free(zLike);
if( p->writableSchema ){
raw_printf(p->out, "PRAGMA writable_schema=OFF;\n");
p->writableSchema = 0;
}
sqlite3_exec(p->db, "PRAGMA writable_schema=OFF;", 0, 0, 0);
sqlite3_exec(p->db, "RELEASE dump;", 0, 0, 0);
if( (p->shellFlgs & SHFLG_DumpDataOnly)==0 ){
raw_printf(p->out, p->nErr?"ROLLBACK; -- due to errors\n":"COMMIT;\n");
}
p->showHeader = savedShowHeader;
p->shellFlgs = savedShellFlags;
}else
if( c=='e' && cli_strncmp(azArg[0], "echo", n)==0 ){
if( nArg==2 ){
setOrClearFlag(p, SHFLG_Echo, azArg[1]);
}else{
raw_printf(stderr, "Usage: .echo on|off\n");
rc = 1;
}
}else
if( c=='e' && cli_strncmp(azArg[0], "eqp", n)==0 ){
if( nArg==2 ){
p->autoEQPtest = 0;
if( p->autoEQPtrace ){
if( p->db ) sqlite3_exec(p->db, "PRAGMA vdbe_trace=OFF;", 0, 0, 0);
p->autoEQPtrace = 0;
}
if( cli_strcmp(azArg[1],"full")==0 ){
p->autoEQP = AUTOEQP_full;
}else if( cli_strcmp(azArg[1],"trigger")==0 ){
p->autoEQP = AUTOEQP_trigger;
#ifdef SQLITE_DEBUG
}else if( cli_strcmp(azArg[1],"test")==0 ){
p->autoEQP = AUTOEQP_on;
p->autoEQPtest = 1;
}else if( cli_strcmp(azArg[1],"trace")==0 ){
p->autoEQP = AUTOEQP_full;
p->autoEQPtrace = 1;
open_db(p, 0);
sqlite3_exec(p->db, "SELECT name FROM sqlite_schema LIMIT 1", 0, 0, 0);
sqlite3_exec(p->db, "PRAGMA vdbe_trace=ON;", 0, 0, 0);
#endif
}else{
p->autoEQP = (u8)booleanValue(azArg[1]);
}
}else{
raw_printf(stderr, "Usage: .eqp off|on|trace|trigger|full\n");
rc = 1;
}
}else
#ifndef SQLITE_SHELL_FIDDLE
if( c=='e' && cli_strncmp(azArg[0], "exit", n)==0 ){
if( nArg>1 && (rc = (int)integerValue(azArg[1]))!=0 ) exit(rc);
rc = 2;
}else
#endif
/* The ".explain" command is automatic now. It is largely pointless. It
** retained purely for backwards compatibility */
if( c=='e' && cli_strncmp(azArg[0], "explain", n)==0 ){
int val = 1;
if( nArg>=2 ){
if( cli_strcmp(azArg[1],"auto")==0 ){
val = 99;
}else{
val = booleanValue(azArg[1]);
}
}
if( val==1 && p->mode!=MODE_Explain ){
p->normalMode = p->mode;
p->mode = MODE_Explain;
p->autoExplain = 0;
}else if( val==0 ){
if( p->mode==MODE_Explain ) p->mode = p->normalMode;
p->autoExplain = 0;
}else if( val==99 ){
if( p->mode==MODE_Explain ) p->mode = p->normalMode;
p->autoExplain = 1;
}
}else
#ifndef SQLITE_OMIT_VIRTUALTABLE
if( c=='e' && cli_strncmp(azArg[0], "expert", n)==0 ){
if( p->bSafeMode ){
raw_printf(stderr,
"Cannot run experimental commands such as \"%s\" in safe mode\n",
azArg[0]);
rc = 1;
}else{
open_db(p, 0);
expertDotCommand(p, azArg, nArg);
}
}else
#endif
if( c=='f' && cli_strncmp(azArg[0], "filectrl", n)==0 ){
static const struct {
const char *zCtrlName; /* Name of a test-control option */
int ctrlCode; /* Integer code for that option */
const char *zUsage; /* Usage notes */
} aCtrl[] = {
{ "chunk_size", SQLITE_FCNTL_CHUNK_SIZE, "SIZE" },
{ "data_version", SQLITE_FCNTL_DATA_VERSION, "" },
{ "has_moved", SQLITE_FCNTL_HAS_MOVED, "" },
{ "lock_timeout", SQLITE_FCNTL_LOCK_TIMEOUT, "MILLISEC" },
{ "persist_wal", SQLITE_FCNTL_PERSIST_WAL, "[BOOLEAN]" },
/* { "pragma", SQLITE_FCNTL_PRAGMA, "NAME ARG" },*/
{ "psow", SQLITE_FCNTL_POWERSAFE_OVERWRITE, "[BOOLEAN]" },
{ "reserve_bytes", SQLITE_FCNTL_RESERVE_BYTES, "[N]" },
{ "size_limit", SQLITE_FCNTL_SIZE_LIMIT, "[LIMIT]" },
{ "tempfilename", SQLITE_FCNTL_TEMPFILENAME, "" },
/* { "win32_av_retry", SQLITE_FCNTL_WIN32_AV_RETRY, "COUNT DELAY" },*/
};
int filectrl = -1;
int iCtrl = -1;
sqlite3_int64 iRes = 0; /* Integer result to display if rc2==1 */
int isOk = 0; /* 0: usage 1: %lld 2: no-result */
int n2, i;
const char *zCmd = 0;
const char *zSchema = 0;
open_db(p, 0);
zCmd = nArg>=2 ? azArg[1] : "help";
if( zCmd[0]=='-'
&& (cli_strcmp(zCmd,"--schema")==0 || cli_strcmp(zCmd,"-schema")==0)
&& nArg>=4
){
zSchema = azArg[2];
for(i=3; i<nArg; i++) azArg[i-2] = azArg[i];
nArg -= 2;
zCmd = azArg[1];
}
/* The argument can optionally begin with "-" or "--" */
if( zCmd[0]=='-' && zCmd[1] ){
zCmd++;
if( zCmd[0]=='-' && zCmd[1] ) zCmd++;
}
/* --help lists all file-controls */
if( cli_strcmp(zCmd,"help")==0 ){
utf8_printf(p->out, "Available file-controls:\n");
for(i=0; i<ArraySize(aCtrl); i++){
utf8_printf(p->out, " .filectrl %s %s\n",
aCtrl[i].zCtrlName, aCtrl[i].zUsage);
}
rc = 1;
goto meta_command_exit;
}
/* convert filectrl text option to value. allow any unique prefix
** of the option name, or a numerical value. */
n2 = strlen30(zCmd);
for(i=0; i<ArraySize(aCtrl); i++){
if( cli_strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){
if( filectrl<0 ){
filectrl = aCtrl[i].ctrlCode;
iCtrl = i;
}else{
utf8_printf(stderr, "Error: ambiguous file-control: \"%s\"\n"
"Use \".filectrl --help\" for help\n", zCmd);
rc = 1;
goto meta_command_exit;
}
}
}
if( filectrl<0 ){
utf8_printf(stderr,"Error: unknown file-control: %s\n"
"Use \".filectrl --help\" for help\n", zCmd);
}else{
switch(filectrl){
case SQLITE_FCNTL_SIZE_LIMIT: {
if( nArg!=2 && nArg!=3 ) break;
iRes = nArg==3 ? integerValue(azArg[2]) : -1;
sqlite3_file_control(p->db, zSchema, SQLITE_FCNTL_SIZE_LIMIT, &iRes);
isOk = 1;
break;
}
case SQLITE_FCNTL_LOCK_TIMEOUT:
case SQLITE_FCNTL_CHUNK_SIZE: {
int x;
if( nArg!=3 ) break;
x = (int)integerValue(azArg[2]);
sqlite3_file_control(p->db, zSchema, filectrl, &x);
isOk = 2;
break;
}
case SQLITE_FCNTL_PERSIST_WAL:
case SQLITE_FCNTL_POWERSAFE_OVERWRITE: {
int x;
if( nArg!=2 && nArg!=3 ) break;
x = nArg==3 ? booleanValue(azArg[2]) : -1;
sqlite3_file_control(p->db, zSchema, filectrl, &x);
iRes = x;
isOk = 1;
break;
}
case SQLITE_FCNTL_DATA_VERSION:
case SQLITE_FCNTL_HAS_MOVED: {
int x;
if( nArg!=2 ) break;
sqlite3_file_control(p->db, zSchema, filectrl, &x);
iRes = x;
isOk = 1;
break;
}
case SQLITE_FCNTL_TEMPFILENAME: {
char *z = 0;
if( nArg!=2 ) break;
sqlite3_file_control(p->db, zSchema, filectrl, &z);
if( z ){
utf8_printf(p->out, "%s\n", z);
sqlite3_free(z);
}
isOk = 2;
break;
}
case SQLITE_FCNTL_RESERVE_BYTES: {
int x;
if( nArg>=3 ){
x = atoi(azArg[2]);
sqlite3_file_control(p->db, zSchema, filectrl, &x);
}
x = -1;
sqlite3_file_control(p->db, zSchema, filectrl, &x);
utf8_printf(p->out,"%d\n", x);
isOk = 2;
break;
}
}
}
if( isOk==0 && iCtrl>=0 ){
utf8_printf(p->out, "Usage: .filectrl %s %s\n", zCmd,aCtrl[iCtrl].zUsage);
rc = 1;
}else if( isOk==1 ){
char zBuf[100];
sqlite3_snprintf(sizeof(zBuf), zBuf, "%lld", iRes);
raw_printf(p->out, "%s\n", zBuf);
}
}else
if( c=='f' && cli_strncmp(azArg[0], "fullschema", n)==0 ){
ShellState data;
int doStats = 0;
memcpy(&data, p, sizeof(data));
data.showHeader = 0;
data.cMode = data.mode = MODE_Semi;
if( nArg==2 && optionMatch(azArg[1], "indent") ){
data.cMode = data.mode = MODE_Pretty;
nArg = 1;
}
if( nArg!=1 ){
raw_printf(stderr, "Usage: .fullschema ?--indent?\n");
rc = 1;
goto meta_command_exit;
}
open_db(p, 0);
rc = sqlite3_exec(p->db,
"SELECT sql FROM"
" (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x"
" FROM sqlite_schema UNION ALL"
" SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_schema) "
"WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%' "
"ORDER BY x",
callback, &data, 0
);
if( rc==SQLITE_OK ){
sqlite3_stmt *pStmt;
rc = sqlite3_prepare_v2(p->db,
"SELECT rowid FROM sqlite_schema"
" WHERE name GLOB 'sqlite_stat[134]'",
-1, &pStmt, 0);
doStats = sqlite3_step(pStmt)==SQLITE_ROW;
sqlite3_finalize(pStmt);
}
if( doStats==0 ){
raw_printf(p->out, "/* No STAT tables available */\n");
}else{
raw_printf(p->out, "ANALYZE sqlite_schema;\n");
data.cMode = data.mode = MODE_Insert;
data.zDestTable = "sqlite_stat1";
shell_exec(&data, "SELECT * FROM sqlite_stat1", 0);
data.zDestTable = "sqlite_stat4";
shell_exec(&data, "SELECT * FROM sqlite_stat4", 0);
raw_printf(p->out, "ANALYZE sqlite_schema;\n");
}
}else
if( c=='h' && cli_strncmp(azArg[0], "headers", n)==0 ){
if( nArg==2 ){
p->showHeader = booleanValue(azArg[1]);
p->shellFlgs |= SHFLG_HeaderSet;
}else{
raw_printf(stderr, "Usage: .headers on|off\n");
rc = 1;
}
}else
if( c=='h' && cli_strncmp(azArg[0], "help", n)==0 ){
if( nArg>=2 ){
n = showHelp(p->out, azArg[1]);
if( n==0 ){
utf8_printf(p->out, "Nothing matches '%s'\n", azArg[1]);
}
}else{
showHelp(p->out, 0);
}
}else
#ifndef SQLITE_SHELL_FIDDLE
if( c=='i' && cli_strncmp(azArg[0], "import", n)==0 ){
char *zTable = 0; /* Insert data into this table */
char *zSchema = 0; /* within this schema (may default to "main") */
char *zFile = 0; /* Name of file to extra content from */
sqlite3_stmt *pStmt = NULL; /* A statement */
int nCol; /* Number of columns in the table */
int nByte; /* Number of bytes in an SQL string */
int i, j; /* Loop counters */
int needCommit; /* True to COMMIT or ROLLBACK at end */
int nSep; /* Number of bytes in p->colSeparator[] */
char *zSql; /* An SQL statement */
char *zFullTabName; /* Table name with schema if applicable */
ImportCtx sCtx; /* Reader context */
char *(SQLITE_CDECL *xRead)(ImportCtx*); /* Func to read one value */
int eVerbose = 0; /* Larger for more console output */
int nSkip = 0; /* Initial lines to skip */
int useOutputMode = 1; /* Use output mode to determine separators */
char *zCreate = 0; /* CREATE TABLE statement text */
failIfSafeMode(p, "cannot run .import in safe mode");
memset(&sCtx, 0, sizeof(sCtx));
if( p->mode==MODE_Ascii ){
xRead = ascii_read_one_field;
}else{
xRead = csv_read_one_field;
}
rc = 1;
for(i=1; i<nArg; i++){
char *z = azArg[i];
if( z[0]=='-' && z[1]=='-' ) z++;
if( z[0]!='-' ){
if( zFile==0 ){
zFile = z;
}else if( zTable==0 ){
zTable = z;
}else{
utf8_printf(p->out, "ERROR: extra argument: \"%s\". Usage:\n", z);
showHelp(p->out, "import");
goto meta_command_exit;
}
}else if( cli_strcmp(z,"-v")==0 ){
eVerbose++;
}else if( cli_strcmp(z,"-schema")==0 && i<nArg-1 ){
zSchema = azArg[++i];
}else if( cli_strcmp(z,"-skip")==0 && i<nArg-1 ){
nSkip = integerValue(azArg[++i]);
}else if( cli_strcmp(z,"-ascii")==0 ){
sCtx.cColSep = SEP_Unit[0];
sCtx.cRowSep = SEP_Record[0];
xRead = ascii_read_one_field;
useOutputMode = 0;
}else if( cli_strcmp(z,"-csv")==0 ){
sCtx.cColSep = ',';
sCtx.cRowSep = '\n';
xRead = csv_read_one_field;
useOutputMode = 0;
}else{
utf8_printf(p->out, "ERROR: unknown option: \"%s\". Usage:\n", z);
showHelp(p->out, "import");
goto meta_command_exit;
}
}
if( zTable==0 ){
utf8_printf(p->out, "ERROR: missing %s argument. Usage:\n",
zFile==0 ? "FILE" : "TABLE");
showHelp(p->out, "import");
goto meta_command_exit;
}
seenInterrupt = 0;
open_db(p, 0);
if( useOutputMode ){
/* If neither the --csv or --ascii options are specified, then set
** the column and row separator characters from the output mode. */
nSep = strlen30(p->colSeparator);
if( nSep==0 ){
raw_printf(stderr,
"Error: non-null column separator required for import\n");
goto meta_command_exit;
}
if( nSep>1 ){
raw_printf(stderr,
"Error: multi-character column separators not allowed"
" for import\n");
goto meta_command_exit;
}
nSep = strlen30(p->rowSeparator);
if( nSep==0 ){
raw_printf(stderr,
"Error: non-null row separator required for import\n");
goto meta_command_exit;
}
if( nSep==2 && p->mode==MODE_Csv
&& cli_strcmp(p->rowSeparator,SEP_CrLf)==0
){
/* When importing CSV (only), if the row separator is set to the
** default output row separator, change it to the default input
** row separator. This avoids having to maintain different input
** and output row separators. */
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
nSep = strlen30(p->rowSeparator);
}
if( nSep>1 ){
raw_printf(stderr, "Error: multi-character row separators not allowed"
" for import\n");
goto meta_command_exit;
}
sCtx.cColSep = (u8)p->colSeparator[0];
sCtx.cRowSep = (u8)p->rowSeparator[0];
}
sCtx.zFile = zFile;
sCtx.nLine = 1;
if( sCtx.zFile[0]=='|' ){
#ifdef SQLITE_OMIT_POPEN
raw_printf(stderr, "Error: pipes are not supported in this OS\n");
goto meta_command_exit;
#else
sCtx.in = popen(sCtx.zFile+1, "r");
sCtx.zFile = "<pipe>";
sCtx.xCloser = pclose;
#endif
}else{
sCtx.in = fopen(sCtx.zFile, "rb");
sCtx.xCloser = fclose;
}
if( sCtx.in==0 ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", zFile);
goto meta_command_exit;
}
if( eVerbose>=2 || (eVerbose>=1 && useOutputMode) ){
char zSep[2];
zSep[1] = 0;
zSep[0] = sCtx.cColSep;
utf8_printf(p->out, "Column separator ");
output_c_string(p->out, zSep);
utf8_printf(p->out, ", row separator ");
zSep[0] = sCtx.cRowSep;
output_c_string(p->out, zSep);
utf8_printf(p->out, "\n");
}
sCtx.z = sqlite3_malloc64(120);
if( sCtx.z==0 ){
import_cleanup(&sCtx);
shell_out_of_memory();
}
/* Below, resources must be freed before exit. */
while( (nSkip--)>0 ){
while( xRead(&sCtx) && sCtx.cTerm==sCtx.cColSep ){}
}
if( zSchema!=0 ){
zFullTabName = sqlite3_mprintf("\"%w\".\"%w\"", zSchema, zTable);
}else{
zFullTabName = sqlite3_mprintf("\"%w\"", zTable);
}
zSql = sqlite3_mprintf("SELECT * FROM %s", zFullTabName);
if( zSql==0 || zFullTabName==0 ){
import_cleanup(&sCtx);
shell_out_of_memory();
}
nByte = strlen30(zSql);
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
import_append_char(&sCtx, 0); /* To ensure sCtx.z is allocated */
if( rc && sqlite3_strglob("no such table: *", sqlite3_errmsg(p->db))==0 ){
sqlite3 *dbCols = 0;
char *zRenames = 0;
char *zColDefs;
zCreate = sqlite3_mprintf("CREATE TABLE %s", zFullTabName);
while( xRead(&sCtx) ){
zAutoColumn(sCtx.z, &dbCols, 0);
if( sCtx.cTerm!=sCtx.cColSep ) break;
}
zColDefs = zAutoColumn(0, &dbCols, &zRenames);
if( zRenames!=0 ){
utf8_printf((stdin_is_interactive && p->in==stdin)? p->out : stderr,
"Columns renamed during .import %s due to duplicates:\n"
"%s\n", sCtx.zFile, zRenames);
sqlite3_free(zRenames);
}
assert(dbCols==0);
if( zColDefs==0 ){
utf8_printf(stderr,"%s: empty file\n", sCtx.zFile);
import_fail:
sqlite3_free(zCreate);
sqlite3_free(zSql);
sqlite3_free(zFullTabName);
import_cleanup(&sCtx);
rc = 1;
goto meta_command_exit;
}
zCreate = sqlite3_mprintf("%z%z\n", zCreate, zColDefs);
if( eVerbose>=1 ){
utf8_printf(p->out, "%s\n", zCreate);
}
rc = sqlite3_exec(p->db, zCreate, 0, 0, 0);
if( rc ){
utf8_printf(stderr, "%s failed:\n%s\n", zCreate, sqlite3_errmsg(p->db));
goto import_fail;
}
sqlite3_free(zCreate);
zCreate = 0;
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
}
if( rc ){
if (pStmt) sqlite3_finalize(pStmt);
utf8_printf(stderr,"Error: %s\n", sqlite3_errmsg(p->db));
goto import_fail;
}
sqlite3_free(zSql);
nCol = sqlite3_column_count(pStmt);
sqlite3_finalize(pStmt);
pStmt = 0;
if( nCol==0 ) return 0; /* no columns, no error */
zSql = sqlite3_malloc64( nByte*2 + 20 + nCol*2 );
if( zSql==0 ){
import_cleanup(&sCtx);
shell_out_of_memory();
}
sqlite3_snprintf(nByte+20, zSql, "INSERT INTO %s VALUES(?", zFullTabName);
j = strlen30(zSql);
for(i=1; i<nCol; i++){
zSql[j++] = ',';
zSql[j++] = '?';
}
zSql[j++] = ')';
zSql[j] = 0;
if( eVerbose>=2 ){
utf8_printf(p->out, "Insert using: %s\n", zSql);
}
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
if( rc ){
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
if (pStmt) sqlite3_finalize(pStmt);
goto import_fail;
}
sqlite3_free(zSql);
sqlite3_free(zFullTabName);
needCommit = sqlite3_get_autocommit(p->db);
if( needCommit ) sqlite3_exec(p->db, "BEGIN", 0, 0, 0);
do{
int startLine = sCtx.nLine;
for(i=0; i<nCol; i++){
char *z = xRead(&sCtx);
/*
** Did we reach end-of-file before finding any columns?
** If so, stop instead of NULL filling the remaining columns.
*/
if( z==0 && i==0 ) break;
/*
** Did we reach end-of-file OR end-of-line before finding any
** columns in ASCII mode? If so, stop instead of NULL filling
** the remaining columns.
*/
if( p->mode==MODE_Ascii && (z==0 || z[0]==0) && i==0 ) break;
/*
** For CSV mode, per RFC 4180, accept EOF in lieu of final
** record terminator but only for last field of multi-field row.
** (If there are too few fields, it's not valid CSV anyway.)
*/
if( z==0 && (xRead==csv_read_one_field) && i==nCol-1 && i>0 ){
z = "";
}
sqlite3_bind_text(pStmt, i+1, z, -1, SQLITE_TRANSIENT);
if( i<nCol-1 && sCtx.cTerm!=sCtx.cColSep ){
utf8_printf(stderr, "%s:%d: expected %d columns but found %d - "
"filling the rest with NULL\n",
sCtx.zFile, startLine, nCol, i+1);
i += 2;
while( i<=nCol ){ sqlite3_bind_null(pStmt, i); i++; }
}
}
if( sCtx.cTerm==sCtx.cColSep ){
do{
xRead(&sCtx);
i++;
}while( sCtx.cTerm==sCtx.cColSep );
utf8_printf(stderr, "%s:%d: expected %d columns but found %d - "
"extras ignored\n",
sCtx.zFile, startLine, nCol, i);
}
if( i>=nCol ){
sqlite3_step(pStmt);
rc = sqlite3_reset(pStmt);
if( rc!=SQLITE_OK ){
utf8_printf(stderr, "%s:%d: INSERT failed: %s\n", sCtx.zFile,
startLine, sqlite3_errmsg(p->db));
sCtx.nErr++;
}else{
sCtx.nRow++;
}
}
}while( sCtx.cTerm!=EOF );
import_cleanup(&sCtx);
sqlite3_finalize(pStmt);
if( needCommit ) sqlite3_exec(p->db, "COMMIT", 0, 0, 0);
if( eVerbose>0 ){
utf8_printf(p->out,
"Added %d rows with %d errors using %d lines of input\n",
sCtx.nRow, sCtx.nErr, sCtx.nLine-1);
}
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
#ifndef SQLITE_UNTESTABLE
if( c=='i' && cli_strncmp(azArg[0], "imposter", n)==0 ){
char *zSql;
char *zCollist = 0;
sqlite3_stmt *pStmt;
int tnum = 0;
int isWO = 0; /* True if making an imposter of a WITHOUT ROWID table */
int lenPK = 0; /* Length of the PRIMARY KEY string for isWO tables */
int i;
if( !ShellHasFlag(p,SHFLG_TestingMode) ){
utf8_printf(stderr, ".%s unavailable without --unsafe-testing\n",
"imposter");
rc = 1;
goto meta_command_exit;
}
if( !(nArg==3 || (nArg==2 && sqlite3_stricmp(azArg[1],"off")==0)) ){
utf8_printf(stderr, "Usage: .imposter INDEX IMPOSTER\n"
" .imposter off\n");
/* Also allowed, but not documented:
**
** .imposter TABLE IMPOSTER
**
** where TABLE is a WITHOUT ROWID table. In that case, the
** imposter is another WITHOUT ROWID table with the columns in
** storage order. */
rc = 1;
goto meta_command_exit;
}
open_db(p, 0);
if( nArg==2 ){
sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 0, 1);
goto meta_command_exit;
}
zSql = sqlite3_mprintf(
"SELECT rootpage, 0 FROM sqlite_schema"
" WHERE name='%q' AND type='index'"
"UNION ALL "
"SELECT rootpage, 1 FROM sqlite_schema"
" WHERE name='%q' AND type='table'"
" AND sql LIKE '%%without%%rowid%%'",
azArg[1], azArg[1]
);
sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( sqlite3_step(pStmt)==SQLITE_ROW ){
tnum = sqlite3_column_int(pStmt, 0);
isWO = sqlite3_column_int(pStmt, 1);
}
sqlite3_finalize(pStmt);
zSql = sqlite3_mprintf("PRAGMA index_xinfo='%q'", azArg[1]);
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
i = 0;
while( rc==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
char zLabel[20];
const char *zCol = (const char*)sqlite3_column_text(pStmt,2);
i++;
if( zCol==0 ){
if( sqlite3_column_int(pStmt,1)==-1 ){
zCol = "_ROWID_";
}else{
sqlite3_snprintf(sizeof(zLabel),zLabel,"expr%d",i);
zCol = zLabel;
}
}
if( isWO && lenPK==0 && sqlite3_column_int(pStmt,5)==0 && zCollist ){
lenPK = (int)strlen(zCollist);
}
if( zCollist==0 ){
zCollist = sqlite3_mprintf("\"%w\"", zCol);
}else{
zCollist = sqlite3_mprintf("%z,\"%w\"", zCollist, zCol);
}
}
sqlite3_finalize(pStmt);
if( i==0 || tnum==0 ){
utf8_printf(stderr, "no such index: \"%s\"\n", azArg[1]);
rc = 1;
sqlite3_free(zCollist);
goto meta_command_exit;
}
if( lenPK==0 ) lenPK = 100000;
zSql = sqlite3_mprintf(
"CREATE TABLE \"%w\"(%s,PRIMARY KEY(%.*s))WITHOUT ROWID",
azArg[2], zCollist, lenPK, zCollist);
sqlite3_free(zCollist);
rc = sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 1, tnum);
if( rc==SQLITE_OK ){
rc = sqlite3_exec(p->db, zSql, 0, 0, 0);
sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, p->db, "main", 0, 0);
if( rc ){
utf8_printf(stderr, "Error in [%s]: %s\n", zSql, sqlite3_errmsg(p->db));
}else{
utf8_printf(stdout, "%s;\n", zSql);
raw_printf(stdout,
"WARNING: writing to an imposter table will corrupt the \"%s\" %s!\n",
azArg[1], isWO ? "table" : "index"
);
}
}else{
raw_printf(stderr, "SQLITE_TESTCTRL_IMPOSTER returns %d\n", rc);
rc = 1;
}
sqlite3_free(zSql);
}else
#endif /* !defined(SQLITE_OMIT_TEST_CONTROL) */
#ifdef SQLITE_ENABLE_IOTRACE
if( c=='i' && cli_strncmp(azArg[0], "iotrace", n)==0 ){
SQLITE_API extern void (SQLITE_CDECL *sqlite3IoTrace)(const char*, ...);
if( iotrace && iotrace!=stdout ) fclose(iotrace);
iotrace = 0;
if( nArg<2 ){
sqlite3IoTrace = 0;
}else if( cli_strcmp(azArg[1], "-")==0 ){
sqlite3IoTrace = iotracePrintf;
iotrace = stdout;
}else{
iotrace = fopen(azArg[1], "w");
if( iotrace==0 ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", azArg[1]);
sqlite3IoTrace = 0;
rc = 1;
}else{
sqlite3IoTrace = iotracePrintf;
}
}
}else
#endif
if( c=='l' && n>=5 && cli_strncmp(azArg[0], "limits", n)==0 ){
static const struct {
const char *zLimitName; /* Name of a limit */
int limitCode; /* Integer code for that limit */
} aLimit[] = {
{ "length", SQLITE_LIMIT_LENGTH },
{ "sql_length", SQLITE_LIMIT_SQL_LENGTH },
{ "column", SQLITE_LIMIT_COLUMN },
{ "expr_depth", SQLITE_LIMIT_EXPR_DEPTH },
{ "compound_select", SQLITE_LIMIT_COMPOUND_SELECT },
{ "vdbe_op", SQLITE_LIMIT_VDBE_OP },
{ "function_arg", SQLITE_LIMIT_FUNCTION_ARG },
{ "attached", SQLITE_LIMIT_ATTACHED },
{ "like_pattern_length", SQLITE_LIMIT_LIKE_PATTERN_LENGTH },
{ "variable_number", SQLITE_LIMIT_VARIABLE_NUMBER },
{ "trigger_depth", SQLITE_LIMIT_TRIGGER_DEPTH },
{ "worker_threads", SQLITE_LIMIT_WORKER_THREADS },
};
int i, n2;
open_db(p, 0);
if( nArg==1 ){
for(i=0; i<ArraySize(aLimit); i++){
printf("%20s %d\n", aLimit[i].zLimitName,
sqlite3_limit(p->db, aLimit[i].limitCode, -1));
}
}else if( nArg>3 ){
raw_printf(stderr, "Usage: .limit NAME ?NEW-VALUE?\n");
rc = 1;
goto meta_command_exit;
}else{
int iLimit = -1;
n2 = strlen30(azArg[1]);
for(i=0; i<ArraySize(aLimit); i++){
if( sqlite3_strnicmp(aLimit[i].zLimitName, azArg[1], n2)==0 ){
if( iLimit<0 ){
iLimit = i;
}else{
utf8_printf(stderr, "ambiguous limit: \"%s\"\n", azArg[1]);
rc = 1;
goto meta_command_exit;
}
}
}
if( iLimit<0 ){
utf8_printf(stderr, "unknown limit: \"%s\"\n"
"enter \".limits\" with no arguments for a list.\n",
azArg[1]);
rc = 1;
goto meta_command_exit;
}
if( nArg==3 ){
sqlite3_limit(p->db, aLimit[iLimit].limitCode,
(int)integerValue(azArg[2]));
}
printf("%20s %d\n", aLimit[iLimit].zLimitName,
sqlite3_limit(p->db, aLimit[iLimit].limitCode, -1));
}
}else
if( c=='l' && n>2 && cli_strncmp(azArg[0], "lint", n)==0 ){
open_db(p, 0);
lintDotCommand(p, azArg, nArg);
}else
#if !defined(SQLITE_OMIT_LOAD_EXTENSION) && !defined(SQLITE_SHELL_FIDDLE)
if( c=='l' && cli_strncmp(azArg[0], "load", n)==0 ){
const char *zFile, *zProc;
char *zErrMsg = 0;
failIfSafeMode(p, "cannot run .load in safe mode");
if( nArg<2 || azArg[1][0]==0 ){
/* Must have a non-empty FILE. (Will not load self.) */
raw_printf(stderr, "Usage: .load FILE ?ENTRYPOINT?\n");
rc = 1;
goto meta_command_exit;
}
zFile = azArg[1];
zProc = nArg>=3 ? azArg[2] : 0;
open_db(p, 0);
rc = sqlite3_load_extension(p->db, zFile, zProc, &zErrMsg);
if( rc!=SQLITE_OK ){
utf8_printf(stderr, "Error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
rc = 1;
}
}else
#endif
if( c=='l' && cli_strncmp(azArg[0], "log", n)==0 ){
if( nArg!=2 ){
raw_printf(stderr, "Usage: .log FILENAME\n");
rc = 1;
}else{
const char *zFile = azArg[1];
if( p->bSafeMode
&& cli_strcmp(zFile,"on")!=0
&& cli_strcmp(zFile,"off")!=0
){
raw_printf(stdout, "cannot set .log to anything other "
"than \"on\" or \"off\"\n");
zFile = "off";
}
output_file_close(p->pLog);
if( cli_strcmp(zFile,"on")==0 ) zFile = "stdout";
p->pLog = output_file_open(zFile, 0);
}
}else
if( c=='m' && cli_strncmp(azArg[0], "mode", n)==0 ){
const char *zMode = 0;
const char *zTabname = 0;
int i, n2;
ColModeOpts cmOpts = ColModeOpts_default;
for(i=1; i<nArg; i++){
const char *z = azArg[i];
if( optionMatch(z,"wrap") && i+1<nArg ){
cmOpts.iWrap = integerValue(azArg[++i]);
}else if( optionMatch(z,"ww") ){
cmOpts.bWordWrap = 1;
}else if( optionMatch(z,"wordwrap") && i+1<nArg ){
cmOpts.bWordWrap = (u8)booleanValue(azArg[++i]);
}else if( optionMatch(z,"quote") ){
cmOpts.bQuote = 1;
}else if( optionMatch(z,"noquote") ){
cmOpts.bQuote = 0;
}else if( zMode==0 ){
zMode = z;
/* Apply defaults for qbox pseudo-mode. If that
* overwrites already-set values, user was informed of this.
*/
if( cli_strcmp(z, "qbox")==0 ){
ColModeOpts cmo = ColModeOpts_default_qbox;
zMode = "box";
cmOpts = cmo;
}
}else if( zTabname==0 ){
zTabname = z;
}else if( z[0]=='-' ){
utf8_printf(stderr, "unknown option: %s\n", z);
utf8_printf(stderr, "options:\n"
" --noquote\n"
" --quote\n"
" --wordwrap on/off\n"
" --wrap N\n"
" --ww\n");
rc = 1;
goto meta_command_exit;
}else{
utf8_printf(stderr, "extra argument: \"%s\"\n", z);
rc = 1;
goto meta_command_exit;
}
}
if( zMode==0 ){
if( p->mode==MODE_Column
|| (p->mode>=MODE_Markdown && p->mode<=MODE_Box)
){
raw_printf
(p->out,
"current output mode: %s --wrap %d --wordwrap %s --%squote\n",
modeDescr[p->mode], p->cmOpts.iWrap,
p->cmOpts.bWordWrap ? "on" : "off",
p->cmOpts.bQuote ? "" : "no");
}else{
raw_printf(p->out, "current output mode: %s\n", modeDescr[p->mode]);
}
zMode = modeDescr[p->mode];
}
n2 = strlen30(zMode);
if( cli_strncmp(zMode,"lines",n2)==0 ){
p->mode = MODE_Line;
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
}else if( cli_strncmp(zMode,"columns",n2)==0 ){
p->mode = MODE_Column;
if( (p->shellFlgs & SHFLG_HeaderSet)==0 ){
p->showHeader = 1;
}
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
p->cmOpts = cmOpts;
}else if( cli_strncmp(zMode,"list",n2)==0 ){
p->mode = MODE_List;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Column);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
}else if( cli_strncmp(zMode,"html",n2)==0 ){
p->mode = MODE_Html;
}else if( cli_strncmp(zMode,"tcl",n2)==0 ){
p->mode = MODE_Tcl;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Space);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
}else if( cli_strncmp(zMode,"csv",n2)==0 ){
p->mode = MODE_Csv;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf);
}else if( cli_strncmp(zMode,"tabs",n2)==0 ){
p->mode = MODE_List;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Tab);
}else if( cli_strncmp(zMode,"insert",n2)==0 ){
p->mode = MODE_Insert;
set_table_name(p, zTabname ? zTabname : "table");
}else if( cli_strncmp(zMode,"quote",n2)==0 ){
p->mode = MODE_Quote;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Row);
}else if( cli_strncmp(zMode,"ascii",n2)==0 ){
p->mode = MODE_Ascii;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Unit);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_Record);
}else if( cli_strncmp(zMode,"markdown",n2)==0 ){
p->mode = MODE_Markdown;
p->cmOpts = cmOpts;
}else if( cli_strncmp(zMode,"table",n2)==0 ){
p->mode = MODE_Table;
p->cmOpts = cmOpts;
}else if( cli_strncmp(zMode,"box",n2)==0 ){
p->mode = MODE_Box;
p->cmOpts = cmOpts;
}else if( cli_strncmp(zMode,"count",n2)==0 ){
p->mode = MODE_Count;
}else if( cli_strncmp(zMode,"off",n2)==0 ){
p->mode = MODE_Off;
}else if( cli_strncmp(zMode,"json",n2)==0 ){
p->mode = MODE_Json;
}else{
raw_printf(stderr, "Error: mode should be one of: "
"ascii box column csv html insert json line list markdown "
"qbox quote table tabs tcl\n");
rc = 1;
}
p->cMode = p->mode;
}else
#ifndef SQLITE_SHELL_FIDDLE
if( c=='n' && cli_strcmp(azArg[0], "nonce")==0 ){
if( nArg!=2 ){
raw_printf(stderr, "Usage: .nonce NONCE\n");
rc = 1;
}else if( p->zNonce==0 || cli_strcmp(azArg[1],p->zNonce)!=0 ){
raw_printf(stderr, "line %d: incorrect nonce: \"%s\"\n",
p->lineno, azArg[1]);
exit(1);
}else{
p->bSafeMode = 0;
return 0; /* Return immediately to bypass the safe mode reset
** at the end of this procedure */
}
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='n' && cli_strncmp(azArg[0], "nullvalue", n)==0 ){
if( nArg==2 ){
sqlite3_snprintf(sizeof(p->nullValue), p->nullValue,
"%.*s", (int)ArraySize(p->nullValue)-1, azArg[1]);
}else{
raw_printf(stderr, "Usage: .nullvalue STRING\n");
rc = 1;
}
}else
if( c=='o' && cli_strncmp(azArg[0], "open", n)==0 && n>=2 ){
const char *zFN = 0; /* Pointer to constant filename */
char *zNewFilename = 0; /* Name of the database file to open */
int iName = 1; /* Index in azArg[] of the filename */
int newFlag = 0; /* True to delete file before opening */
int openMode = SHELL_OPEN_UNSPEC;
/* Check for command-line arguments */
for(iName=1; iName<nArg; iName++){
const char *z = azArg[iName];
#ifndef SQLITE_SHELL_FIDDLE
if( optionMatch(z,"new") ){
newFlag = 1;
#ifdef SQLITE_HAVE_ZLIB
}else if( optionMatch(z, "zip") ){
openMode = SHELL_OPEN_ZIPFILE;
#endif
}else if( optionMatch(z, "append") ){
openMode = SHELL_OPEN_APPENDVFS;
}else if( optionMatch(z, "readonly") ){
openMode = SHELL_OPEN_READONLY;
}else if( optionMatch(z, "nofollow") ){
p->openFlags |= SQLITE_OPEN_NOFOLLOW;
#ifndef SQLITE_OMIT_DESERIALIZE
}else if( optionMatch(z, "deserialize") ){
openMode = SHELL_OPEN_DESERIALIZE;
}else if( optionMatch(z, "hexdb") ){
openMode = SHELL_OPEN_HEXDB;
}else if( optionMatch(z, "maxsize") && iName+1<nArg ){
p->szMax = integerValue(azArg[++iName]);
#endif /* SQLITE_OMIT_DESERIALIZE */
}else
#endif /* !SQLITE_SHELL_FIDDLE */
if( z[0]=='-' ){
utf8_printf(stderr, "unknown option: %s\n", z);
rc = 1;
goto meta_command_exit;
}else if( zFN ){
utf8_printf(stderr, "extra argument: \"%s\"\n", z);
rc = 1;
goto meta_command_exit;
}else{
zFN = z;
}
}
/* Close the existing database */
session_close_all(p, -1);
close_db(p->db);
p->db = 0;
p->pAuxDb->zDbFilename = 0;
sqlite3_free(p->pAuxDb->zFreeOnClose);
p->pAuxDb->zFreeOnClose = 0;
p->openMode = openMode;
p->openFlags = 0;
p->szMax = 0;
/* If a filename is specified, try to open it first */
if( zFN || p->openMode==SHELL_OPEN_HEXDB ){
if( newFlag && zFN && !p->bSafeMode ) shellDeleteFile(zFN);
#ifndef SQLITE_SHELL_FIDDLE
if( p->bSafeMode
&& p->openMode!=SHELL_OPEN_HEXDB
&& zFN
&& cli_strcmp(zFN,":memory:")!=0
){
failIfSafeMode(p, "cannot open disk-based database files in safe mode");
}
#else
/* WASM mode has its own sandboxed pseudo-filesystem. */
#endif
if( zFN ){
zNewFilename = sqlite3_mprintf("%s", zFN);
shell_check_oom(zNewFilename);
}else{
zNewFilename = 0;
}
p->pAuxDb->zDbFilename = zNewFilename;
open_db(p, OPEN_DB_KEEPALIVE);
if( p->db==0 ){
utf8_printf(stderr, "Error: cannot open '%s'\n", zNewFilename);
sqlite3_free(zNewFilename);
}else{
p->pAuxDb->zFreeOnClose = zNewFilename;
}
}
if( p->db==0 ){
/* As a fall-back open a TEMP database */
p->pAuxDb->zDbFilename = 0;
open_db(p, 0);
}
}else
#ifndef SQLITE_SHELL_FIDDLE
if( (c=='o'
&& (cli_strncmp(azArg[0], "output", n)==0
|| cli_strncmp(azArg[0], "once", n)==0))
|| (c=='e' && n==5 && cli_strcmp(azArg[0],"excel")==0)
){
char *zFile = 0;
int bTxtMode = 0;
int i;
int eMode = 0;
int bOnce = 0; /* 0: .output, 1: .once, 2: .excel */
unsigned char zBOM[4]; /* Byte-order mark to using if --bom is present */
zBOM[0] = 0;
failIfSafeMode(p, "cannot run .%s in safe mode", azArg[0]);
if( c=='e' ){
eMode = 'x';
bOnce = 2;
}else if( cli_strncmp(azArg[0],"once",n)==0 ){
bOnce = 1;
}
for(i=1; i<nArg; i++){
char *z = azArg[i];
if( z[0]=='-' ){
if( z[1]=='-' ) z++;
if( cli_strcmp(z,"-bom")==0 ){
zBOM[0] = 0xef;
zBOM[1] = 0xbb;
zBOM[2] = 0xbf;
zBOM[3] = 0;
}else if( c!='e' && cli_strcmp(z,"-x")==0 ){
eMode = 'x'; /* spreadsheet */
}else if( c!='e' && cli_strcmp(z,"-e")==0 ){
eMode = 'e'; /* text editor */
}else{
utf8_printf(p->out, "ERROR: unknown option: \"%s\". Usage:\n",
azArg[i]);
showHelp(p->out, azArg[0]);
rc = 1;
goto meta_command_exit;
}
}else if( zFile==0 && eMode!='e' && eMode!='x' ){
zFile = sqlite3_mprintf("%s", z);
if( zFile && zFile[0]=='|' ){
while( i+1<nArg ) zFile = sqlite3_mprintf("%z %s", zFile, azArg[++i]);
break;
}
}else{
utf8_printf(p->out,"ERROR: extra parameter: \"%s\". Usage:\n",
azArg[i]);
showHelp(p->out, azArg[0]);
rc = 1;
sqlite3_free(zFile);
goto meta_command_exit;
}
}
if( zFile==0 ){
zFile = sqlite3_mprintf("stdout");
}
if( bOnce ){
p->outCount = 2;
}else{
p->outCount = 0;
}
output_reset(p);
#ifndef SQLITE_NOHAVE_SYSTEM
if( eMode=='e' || eMode=='x' ){
p->doXdgOpen = 1;
outputModePush(p);
if( eMode=='x' ){
/* spreadsheet mode. Output as CSV. */
newTempFile(p, "csv");
ShellClearFlag(p, SHFLG_Echo);
p->mode = MODE_Csv;
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator, SEP_Comma);
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator, SEP_CrLf);
}else{
/* text editor mode */
newTempFile(p, "txt");
bTxtMode = 1;
}
sqlite3_free(zFile);
zFile = sqlite3_mprintf("%s", p->zTempFile);
}
#endif /* SQLITE_NOHAVE_SYSTEM */
shell_check_oom(zFile);
if( zFile[0]=='|' ){
#ifdef SQLITE_OMIT_POPEN
raw_printf(stderr, "Error: pipes are not supported in this OS\n");
rc = 1;
p->out = stdout;
#else
p->out = popen(zFile + 1, "w");
if( p->out==0 ){
utf8_printf(stderr,"Error: cannot open pipe \"%s\"\n", zFile + 1);
p->out = stdout;
rc = 1;
}else{
if( zBOM[0] ) fwrite(zBOM, 1, 3, p->out);
sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile);
}
#endif
}else{
p->out = output_file_open(zFile, bTxtMode);
if( p->out==0 ){
if( cli_strcmp(zFile,"off")!=0 ){
utf8_printf(stderr,"Error: cannot write to \"%s\"\n", zFile);
}
p->out = stdout;
rc = 1;
} else {
if( zBOM[0] ) fwrite(zBOM, 1, 3, p->out);
sqlite3_snprintf(sizeof(p->outfile), p->outfile, "%s", zFile);
}
}
sqlite3_free(zFile);
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='p' && n>=3 && cli_strncmp(azArg[0], "parameter", n)==0 ){
open_db(p,0);
if( nArg<=1 ) goto parameter_syntax_error;
/* .parameter clear
** Clear all bind parameters by dropping the TEMP table that holds them.
*/
if( nArg==2 && cli_strcmp(azArg[1],"clear")==0 ){
sqlite3_exec(p->db, "DROP TABLE IF EXISTS temp.sqlite_parameters;",
0, 0, 0);
}else
/* .parameter list
** List all bind parameters.
*/
if( nArg==2 && cli_strcmp(azArg[1],"list")==0 ){
sqlite3_stmt *pStmt = 0;
int rx;
int len = 0;
rx = sqlite3_prepare_v2(p->db,
"SELECT max(length(key)) "
"FROM temp.sqlite_parameters;", -1, &pStmt, 0);
if( rx==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
len = sqlite3_column_int(pStmt, 0);
if( len>40 ) len = 40;
}
sqlite3_finalize(pStmt);
pStmt = 0;
if( len ){
rx = sqlite3_prepare_v2(p->db,
"SELECT key, quote(value) "
"FROM temp.sqlite_parameters;", -1, &pStmt, 0);
while( rx==SQLITE_OK && sqlite3_step(pStmt)==SQLITE_ROW ){
utf8_printf(p->out, "%-*s %s\n", len, sqlite3_column_text(pStmt,0),
sqlite3_column_text(pStmt,1));
}
sqlite3_finalize(pStmt);
}
}else
/* .parameter init
** Make sure the TEMP table used to hold bind parameters exists.
** Create it if necessary.
*/
if( nArg==2 && cli_strcmp(azArg[1],"init")==0 ){
bind_table_init(p);
}else
/* .parameter set NAME VALUE
** Set or reset a bind parameter. NAME should be the full parameter
** name exactly as it appears in the query. (ex: $abc, @def). The
** VALUE can be in either SQL literal notation, or if not it will be
** understood to be a text string.
*/
if( nArg==4 && cli_strcmp(azArg[1],"set")==0 ){
int rx;
char *zSql;
sqlite3_stmt *pStmt;
const char *zKey = azArg[2];
const char *zValue = azArg[3];
bind_table_init(p);
zSql = sqlite3_mprintf(
"REPLACE INTO temp.sqlite_parameters(key,value)"
"VALUES(%Q,%s);", zKey, zValue);
shell_check_oom(zSql);
pStmt = 0;
rx = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( rx!=SQLITE_OK ){
sqlite3_finalize(pStmt);
pStmt = 0;
zSql = sqlite3_mprintf(
"REPLACE INTO temp.sqlite_parameters(key,value)"
"VALUES(%Q,%Q);", zKey, zValue);
shell_check_oom(zSql);
rx = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
sqlite3_free(zSql);
if( rx!=SQLITE_OK ){
utf8_printf(p->out, "Error: %s\n", sqlite3_errmsg(p->db));
sqlite3_finalize(pStmt);
pStmt = 0;
rc = 1;
}
}
sqlite3_step(pStmt);
sqlite3_finalize(pStmt);
}else
/* .parameter unset NAME
** Remove the NAME binding from the parameter binding table, if it
** exists.
*/
if( nArg==3 && cli_strcmp(azArg[1],"unset")==0 ){
char *zSql = sqlite3_mprintf(
"DELETE FROM temp.sqlite_parameters WHERE key=%Q", azArg[2]);
shell_check_oom(zSql);
sqlite3_exec(p->db, zSql, 0, 0, 0);
sqlite3_free(zSql);
}else
/* If no command name matches, show a syntax error */
parameter_syntax_error:
showHelp(p->out, "parameter");
}else
if( c=='p' && n>=3 && cli_strncmp(azArg[0], "print", n)==0 ){
int i;
for(i=1; i<nArg; i++){
if( i>1 ) raw_printf(p->out, " ");
utf8_printf(p->out, "%s", azArg[i]);
}
raw_printf(p->out, "\n");
}else
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
if( c=='p' && n>=3 && cli_strncmp(azArg[0], "progress", n)==0 ){
int i;
int nn = 0;
p->flgProgress = 0;
p->mxProgress = 0;
p->nProgress = 0;
for(i=1; i<nArg; i++){
const char *z = azArg[i];
if( z[0]=='-' ){
z++;
if( z[0]=='-' ) z++;
if( cli_strcmp(z,"quiet")==0 || cli_strcmp(z,"q")==0 ){
p->flgProgress |= SHELL_PROGRESS_QUIET;
continue;
}
if( cli_strcmp(z,"reset")==0 ){
p->flgProgress |= SHELL_PROGRESS_RESET;
continue;
}
if( cli_strcmp(z,"once")==0 ){
p->flgProgress |= SHELL_PROGRESS_ONCE;
continue;
}
if( cli_strcmp(z,"limit")==0 ){
if( i+1>=nArg ){
utf8_printf(stderr, "Error: missing argument on --limit\n");
rc = 1;
goto meta_command_exit;
}else{
p->mxProgress = (int)integerValue(azArg[++i]);
}
continue;
}
utf8_printf(stderr, "Error: unknown option: \"%s\"\n", azArg[i]);
rc = 1;
goto meta_command_exit;
}else{
nn = (int)integerValue(z);
}
}
open_db(p, 0);
sqlite3_progress_handler(p->db, nn, progress_handler, p);
}else
#endif /* SQLITE_OMIT_PROGRESS_CALLBACK */
if( c=='p' && cli_strncmp(azArg[0], "prompt", n)==0 ){
if( nArg >= 2) {
shell_strncpy(mainPrompt,azArg[1],(int)ArraySize(mainPrompt)-1);
}
if( nArg >= 3) {
shell_strncpy(continuePrompt,azArg[2],(int)ArraySize(continuePrompt)-1);
}
}else
#ifndef SQLITE_SHELL_FIDDLE
if( c=='q' && cli_strncmp(azArg[0], "quit", n)==0 ){
rc = 2;
}else
#endif
#ifndef SQLITE_SHELL_FIDDLE
if( c=='r' && n>=3 && cli_strncmp(azArg[0], "read", n)==0 ){
FILE *inSaved = p->in;
int savedLineno = p->lineno;
failIfSafeMode(p, "cannot run .read in safe mode");
if( nArg!=2 ){
raw_printf(stderr, "Usage: .read FILE\n");
rc = 1;
goto meta_command_exit;
}
if( azArg[1][0]=='|' ){
#ifdef SQLITE_OMIT_POPEN
raw_printf(stderr, "Error: pipes are not supported in this OS\n");
rc = 1;
p->out = stdout;
#else
p->in = popen(azArg[1]+1, "r");
if( p->in==0 ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", azArg[1]);
rc = 1;
}else{
rc = process_input(p);
pclose(p->in);
}
#endif
}else if( (p->in = openChrSource(azArg[1]))==0 ){
utf8_printf(stderr,"Error: cannot open \"%s\"\n", azArg[1]);
rc = 1;
}else{
rc = process_input(p);
fclose(p->in);
}
p->in = inSaved;
p->lineno = savedLineno;
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
#ifndef SQLITE_SHELL_FIDDLE
if( c=='r' && n>=3 && cli_strncmp(azArg[0], "restore", n)==0 ){
const char *zSrcFile;
const char *zDb;
sqlite3 *pSrc;
sqlite3_backup *pBackup;
int nTimeout = 0;
failIfSafeMode(p, "cannot run .restore in safe mode");
if( nArg==2 ){
zSrcFile = azArg[1];
zDb = "main";
}else if( nArg==3 ){
zSrcFile = azArg[2];
zDb = azArg[1];
}else{
raw_printf(stderr, "Usage: .restore ?DB? FILE\n");
rc = 1;
goto meta_command_exit;
}
rc = sqlite3_open(zSrcFile, &pSrc);
if( rc!=SQLITE_OK ){
utf8_printf(stderr, "Error: cannot open \"%s\"\n", zSrcFile);
close_db(pSrc);
return 1;
}
open_db(p, 0);
pBackup = sqlite3_backup_init(p->db, zDb, pSrc, "main");
if( pBackup==0 ){
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
close_db(pSrc);
return 1;
}
while( (rc = sqlite3_backup_step(pBackup,100))==SQLITE_OK
|| rc==SQLITE_BUSY ){
if( rc==SQLITE_BUSY ){
if( nTimeout++ >= 3 ) break;
sqlite3_sleep(100);
}
}
sqlite3_backup_finish(pBackup);
if( rc==SQLITE_DONE ){
rc = 0;
}else if( rc==SQLITE_BUSY || rc==SQLITE_LOCKED ){
raw_printf(stderr, "Error: source database is busy\n");
rc = 1;
}else{
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
rc = 1;
}
close_db(pSrc);
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
if( c=='s' && cli_strncmp(azArg[0], "scanstats", n)==0 ){
if( nArg==2 ){
if( cli_strcmp(azArg[1], "vm")==0 ){
p->scanstatsOn = 3;
}else
if( cli_strcmp(azArg[1], "est")==0 ){
p->scanstatsOn = 2;
}else{
p->scanstatsOn = (u8)booleanValue(azArg[1]);
}
open_db(p, 0);
sqlite3_db_config(
p->db, SQLITE_DBCONFIG_STMT_SCANSTATUS, p->scanstatsOn, (int*)0
);
#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
raw_printf(stderr, "Warning: .scanstats not available in this build.\n");
#endif
}else{
raw_printf(stderr, "Usage: .scanstats on|off|est\n");
rc = 1;
}
}else
if( c=='s' && cli_strncmp(azArg[0], "schema", n)==0 ){
ShellText sSelect;
ShellState data;
char *zErrMsg = 0;
const char *zDiv = "(";
const char *zName = 0;
int iSchema = 0;
int bDebug = 0;
int bNoSystemTabs = 0;
int ii;
open_db(p, 0);
memcpy(&data, p, sizeof(data));
data.showHeader = 0;
data.cMode = data.mode = MODE_Semi;
initText(&sSelect);
for(ii=1; ii<nArg; ii++){
if( optionMatch(azArg[ii],"indent") ){
data.cMode = data.mode = MODE_Pretty;
}else if( optionMatch(azArg[ii],"debug") ){
bDebug = 1;
}else if( optionMatch(azArg[ii],"nosys") ){
bNoSystemTabs = 1;
}else if( azArg[ii][0]=='-' ){
utf8_printf(stderr, "Unknown option: \"%s\"\n", azArg[ii]);
rc = 1;
goto meta_command_exit;
}else if( zName==0 ){
zName = azArg[ii];
}else{
raw_printf(stderr,
"Usage: .schema ?--indent? ?--nosys? ?LIKE-PATTERN?\n");
rc = 1;
goto meta_command_exit;
}
}
if( zName!=0 ){
int isSchema = sqlite3_strlike(zName, "sqlite_master", '\\')==0
|| sqlite3_strlike(zName, "sqlite_schema", '\\')==0
|| sqlite3_strlike(zName,"sqlite_temp_master", '\\')==0
|| sqlite3_strlike(zName,"sqlite_temp_schema", '\\')==0;
if( isSchema ){
char *new_argv[2], *new_colv[2];
new_argv[0] = sqlite3_mprintf(
"CREATE TABLE %s (\n"
" type text,\n"
" name text,\n"
" tbl_name text,\n"
" rootpage integer,\n"
" sql text\n"
")", zName);
shell_check_oom(new_argv[0]);
new_argv[1] = 0;
new_colv[0] = "sql";
new_colv[1] = 0;
callback(&data, 1, new_argv, new_colv);
sqlite3_free(new_argv[0]);
}
}
if( zDiv ){
sqlite3_stmt *pStmt = 0;
rc = sqlite3_prepare_v2(p->db, "SELECT name FROM pragma_database_list",
-1, &pStmt, 0);
if( rc ){
utf8_printf(stderr, "Error: %s\n", sqlite3_errmsg(p->db));
sqlite3_finalize(pStmt);
rc = 1;
goto meta_command_exit;
}
appendText(&sSelect, "SELECT sql FROM", 0);
iSchema = 0;
while( sqlite3_step(pStmt)==SQLITE_ROW ){
const char *zDb = (const char*)sqlite3_column_text(pStmt, 0);
char zScNum[30];
sqlite3_snprintf(sizeof(zScNum), zScNum, "%d", ++iSchema);
appendText(&sSelect, zDiv, 0);
zDiv = " UNION ALL ";
appendText(&sSelect, "SELECT shell_add_schema(sql,", 0);
if( sqlite3_stricmp(zDb, "main")!=0 ){
appendText(&sSelect, zDb, '\'');
}else{
appendText(&sSelect, "NULL", 0);
}
appendText(&sSelect, ",name) AS sql, type, tbl_name, name, rowid,", 0);
appendText(&sSelect, zScNum, 0);
appendText(&sSelect, " AS snum, ", 0);
appendText(&sSelect, zDb, '\'');
appendText(&sSelect, " AS sname FROM ", 0);
appendText(&sSelect, zDb, quoteChar(zDb));
appendText(&sSelect, ".sqlite_schema", 0);
}
sqlite3_finalize(pStmt);
#ifndef SQLITE_OMIT_INTROSPECTION_PRAGMAS
if( zName ){
appendText(&sSelect,
" UNION ALL SELECT shell_module_schema(name),"
" 'table', name, name, name, 9e+99, 'main' FROM pragma_module_list",
0);
}
#endif
appendText(&sSelect, ") WHERE ", 0);
if( zName ){
char *zQarg = sqlite3_mprintf("%Q", zName);
int bGlob;
shell_check_oom(zQarg);
bGlob = strchr(zName, '*') != 0 || strchr(zName, '?') != 0 ||
strchr(zName, '[') != 0;
if( strchr(zName, '.') ){
appendText(&sSelect, "lower(printf('%s.%s',sname,tbl_name))", 0);
}else{
appendText(&sSelect, "lower(tbl_name)", 0);
}
appendText(&sSelect, bGlob ? " GLOB " : " LIKE ", 0);
appendText(&sSelect, zQarg, 0);
if( !bGlob ){
appendText(&sSelect, " ESCAPE '\\' ", 0);
}
appendText(&sSelect, " AND ", 0);
sqlite3_free(zQarg);
}
if( bNoSystemTabs ){
appendText(&sSelect, "name NOT LIKE 'sqlite_%%' AND ", 0);
}
appendText(&sSelect, "sql IS NOT NULL"
" ORDER BY snum, rowid", 0);
if( bDebug ){
utf8_printf(p->out, "SQL: %s;\n", sSelect.z);
}else{
rc = sqlite3_exec(p->db, sSelect.z, callback, &data, &zErrMsg);
}
freeText(&sSelect);
}
if( zErrMsg ){
utf8_printf(stderr,"Error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
rc = 1;
}else if( rc != SQLITE_OK ){
raw_printf(stderr,"Error: querying schema information\n");
rc = 1;
}else{
rc = 0;
}
}else
if( (c=='s' && n==11 && cli_strncmp(azArg[0], "selecttrace", n)==0)
|| (c=='t' && n==9 && cli_strncmp(azArg[0], "treetrace", n)==0)
){
unsigned int x = nArg>=2? (unsigned int)integerValue(azArg[1]) : 0xffffffff;
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &x);
}else
#if defined(SQLITE_ENABLE_SESSION)
if( c=='s' && cli_strncmp(azArg[0],"session",n)==0 && n>=3 ){
struct AuxDb *pAuxDb = p->pAuxDb;
OpenSession *pSession = &pAuxDb->aSession[0];
char **azCmd = &azArg[1];
int iSes = 0;
int nCmd = nArg - 1;
int i;
if( nArg<=1 ) goto session_syntax_error;
open_db(p, 0);
if( nArg>=3 ){
for(iSes=0; iSes<pAuxDb->nSession; iSes++){
if( cli_strcmp(pAuxDb->aSession[iSes].zName, azArg[1])==0 ) break;
}
if( iSes<pAuxDb->nSession ){
pSession = &pAuxDb->aSession[iSes];
azCmd++;
nCmd--;
}else{
pSession = &pAuxDb->aSession[0];
iSes = 0;
}
}
/* .session attach TABLE
** Invoke the sqlite3session_attach() interface to attach a particular
** table so that it is never filtered.
*/
if( cli_strcmp(azCmd[0],"attach")==0 ){
if( nCmd!=2 ) goto session_syntax_error;
if( pSession->p==0 ){
session_not_open:
raw_printf(stderr, "ERROR: No sessions are open\n");
}else{
rc = sqlite3session_attach(pSession->p, azCmd[1]);
if( rc ){
raw_printf(stderr, "ERROR: sqlite3session_attach() returns %d\n", rc);
rc = 0;
}
}
}else
/* .session changeset FILE
** .session patchset FILE
** Write a changeset or patchset into a file. The file is overwritten.
*/
if( cli_strcmp(azCmd[0],"changeset")==0
|| cli_strcmp(azCmd[0],"patchset")==0
){
FILE *out = 0;
failIfSafeMode(p, "cannot run \".session %s\" in safe mode", azCmd[0]);
if( nCmd!=2 ) goto session_syntax_error;
if( pSession->p==0 ) goto session_not_open;
out = fopen(azCmd[1], "wb");
if( out==0 ){
utf8_printf(stderr, "ERROR: cannot open \"%s\" for writing\n",
azCmd[1]);
}else{
int szChng;
void *pChng;
if( azCmd[0][0]=='c' ){
rc = sqlite3session_changeset(pSession->p, &szChng, &pChng);
}else{
rc = sqlite3session_patchset(pSession->p, &szChng, &pChng);
}
if( rc ){
printf("Error: error code %d\n", rc);
rc = 0;
}
if( pChng
&& fwrite(pChng, szChng, 1, out)!=1 ){
raw_printf(stderr, "ERROR: Failed to write entire %d-byte output\n",
szChng);
}
sqlite3_free(pChng);
fclose(out);
}
}else
/* .session close
** Close the identified session
*/
if( cli_strcmp(azCmd[0], "close")==0 ){
if( nCmd!=1 ) goto session_syntax_error;
if( pAuxDb->nSession ){
session_close(pSession);
pAuxDb->aSession[iSes] = pAuxDb->aSession[--pAuxDb->nSession];
}
}else
/* .session enable ?BOOLEAN?
** Query or set the enable flag
*/
if( cli_strcmp(azCmd[0], "enable")==0 ){
int ii;
if( nCmd>2 ) goto session_syntax_error;
ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
if( pAuxDb->nSession ){
ii = sqlite3session_enable(pSession->p, ii);
utf8_printf(p->out, "session %s enable flag = %d\n",
pSession->zName, ii);
}
}else
/* .session filter GLOB ....
** Set a list of GLOB patterns of table names to be excluded.
*/
if( cli_strcmp(azCmd[0], "filter")==0 ){
int ii, nByte;
if( nCmd<2 ) goto session_syntax_error;
if( pAuxDb->nSession ){
for(ii=0; ii<pSession->nFilter; ii++){
sqlite3_free(pSession->azFilter[ii]);
}
sqlite3_free(pSession->azFilter);
nByte = sizeof(pSession->azFilter[0])*(nCmd-1);
pSession->azFilter = sqlite3_malloc( nByte );
if( pSession->azFilter==0 ){
raw_printf(stderr, "Error: out or memory\n");
exit(1);
}
for(ii=1; ii<nCmd; ii++){
char *x = pSession->azFilter[ii-1] = sqlite3_mprintf("%s", azCmd[ii]);
shell_check_oom(x);
}
pSession->nFilter = ii-1;
}
}else
/* .session indirect ?BOOLEAN?
** Query or set the indirect flag
*/
if( cli_strcmp(azCmd[0], "indirect")==0 ){
int ii;
if( nCmd>2 ) goto session_syntax_error;
ii = nCmd==1 ? -1 : booleanValue(azCmd[1]);
if( pAuxDb->nSession ){
ii = sqlite3session_indirect(pSession->p, ii);
utf8_printf(p->out, "session %s indirect flag = %d\n",
pSession->zName, ii);
}
}else
/* .session isempty
** Determine if the session is empty
*/
if( cli_strcmp(azCmd[0], "isempty")==0 ){
int ii;
if( nCmd!=1 ) goto session_syntax_error;
if( pAuxDb->nSession ){
ii = sqlite3session_isempty(pSession->p);
utf8_printf(p->out, "session %s isempty flag = %d\n",
pSession->zName, ii);
}
}else
/* .session list
** List all currently open sessions
*/
if( cli_strcmp(azCmd[0],"list")==0 ){
for(i=0; i<pAuxDb->nSession; i++){
utf8_printf(p->out, "%d %s\n", i, pAuxDb->aSession[i].zName);
}
}else
/* .session open DB NAME
** Open a new session called NAME on the attached database DB.
** DB is normally "main".
*/
if( cli_strcmp(azCmd[0],"open")==0 ){
char *zName;
if( nCmd!=3 ) goto session_syntax_error;
zName = azCmd[2];
if( zName[0]==0 ) goto session_syntax_error;
for(i=0; i<pAuxDb->nSession; i++){
if( cli_strcmp(pAuxDb->aSession[i].zName,zName)==0 ){
utf8_printf(stderr, "Session \"%s\" already exists\n", zName);
goto meta_command_exit;
}
}
if( pAuxDb->nSession>=ArraySize(pAuxDb->aSession) ){
raw_printf(stderr,
"Maximum of %d sessions\n", ArraySize(pAuxDb->aSession));
goto meta_command_exit;
}
pSession = &pAuxDb->aSession[pAuxDb->nSession];
rc = sqlite3session_create(p->db, azCmd[1], &pSession->p);
if( rc ){
raw_printf(stderr, "Cannot open session: error code=%d\n", rc);
rc = 0;
goto meta_command_exit;
}
pSession->nFilter = 0;
sqlite3session_table_filter(pSession->p, session_filter, pSession);
pAuxDb->nSession++;
pSession->zName = sqlite3_mprintf("%s", zName);
shell_check_oom(pSession->zName);
}else
/* If no command name matches, show a syntax error */
session_syntax_error:
showHelp(p->out, "session");
}else
#endif
#ifdef SQLITE_DEBUG
/* Undocumented commands for internal testing. Subject to change
** without notice. */
if( c=='s' && n>=10 && cli_strncmp(azArg[0], "selftest-", 9)==0 ){
if( cli_strncmp(azArg[0]+9, "boolean", n-9)==0 ){
int i, v;
for(i=1; i<nArg; i++){
v = booleanValue(azArg[i]);
utf8_printf(p->out, "%s: %d 0x%x\n", azArg[i], v, v);
}
}
if( cli_strncmp(azArg[0]+9, "integer", n-9)==0 ){
int i; sqlite3_int64 v;
for(i=1; i<nArg; i++){
char zBuf[200];
v = integerValue(azArg[i]);
sqlite3_snprintf(sizeof(zBuf),zBuf,"%s: %lld 0x%llx\n", azArg[i],v,v);
utf8_printf(p->out, "%s", zBuf);
}
}
}else
#endif
if( c=='s' && n>=4 && cli_strncmp(azArg[0],"selftest",n)==0 ){
int bIsInit = 0; /* True to initialize the SELFTEST table */
int bVerbose = 0; /* Verbose output */
int bSelftestExists; /* True if SELFTEST already exists */
int i, k; /* Loop counters */
int nTest = 0; /* Number of tests runs */
int nErr = 0; /* Number of errors seen */
ShellText str; /* Answer for a query */
sqlite3_stmt *pStmt = 0; /* Query against the SELFTEST table */
open_db(p,0);
for(i=1; i<nArg; i++){
const char *z = azArg[i];
if( z[0]=='-' && z[1]=='-' ) z++;
if( cli_strcmp(z,"-init")==0 ){
bIsInit = 1;
}else
if( cli_strcmp(z,"-v")==0 ){
bVerbose++;
}else
{
utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
azArg[i], azArg[0]);
raw_printf(stderr, "Should be one of: --init -v\n");
rc = 1;
goto meta_command_exit;
}
}
if( sqlite3_table_column_metadata(p->db,"main","selftest",0,0,0,0,0,0)
!= SQLITE_OK ){
bSelftestExists = 0;
}else{
bSelftestExists = 1;
}
if( bIsInit ){
createSelftestTable(p);
bSelftestExists = 1;
}
initText(&str);
appendText(&str, "x", 0);
for(k=bSelftestExists; k>=0; k--){
if( k==1 ){
rc = sqlite3_prepare_v2(p->db,
"SELECT tno,op,cmd,ans FROM selftest ORDER BY tno",
-1, &pStmt, 0);
}else{
rc = sqlite3_prepare_v2(p->db,
"VALUES(0,'memo','Missing SELFTEST table - default checks only',''),"
" (1,'run','PRAGMA integrity_check','ok')",
-1, &pStmt, 0);
}
if( rc ){
raw_printf(stderr, "Error querying the selftest table\n");
rc = 1;
sqlite3_finalize(pStmt);
goto meta_command_exit;
}
for(i=1; sqlite3_step(pStmt)==SQLITE_ROW; i++){
int tno = sqlite3_column_int(pStmt, 0);
const char *zOp = (const char*)sqlite3_column_text(pStmt, 1);
const char *zSql = (const char*)sqlite3_column_text(pStmt, 2);
const char *zAns = (const char*)sqlite3_column_text(pStmt, 3);
if( zOp==0 ) continue;
if( zSql==0 ) continue;
if( zAns==0 ) continue;
k = 0;
if( bVerbose>0 ){
printf("%d: %s %s\n", tno, zOp, zSql);
}
if( cli_strcmp(zOp,"memo")==0 ){
utf8_printf(p->out, "%s\n", zSql);
}else
if( cli_strcmp(zOp,"run")==0 ){
char *zErrMsg = 0;
str.n = 0;
str.z[0] = 0;
rc = sqlite3_exec(p->db, zSql, captureOutputCallback, &str, &zErrMsg);
nTest++;
if( bVerbose ){
utf8_printf(p->out, "Result: %s\n", str.z);
}
if( rc || zErrMsg ){
nErr++;
rc = 1;
utf8_printf(p->out, "%d: error-code-%d: %s\n", tno, rc, zErrMsg);
sqlite3_free(zErrMsg);
}else if( cli_strcmp(zAns,str.z)!=0 ){
nErr++;
rc = 1;
utf8_printf(p->out, "%d: Expected: [%s]\n", tno, zAns);
utf8_printf(p->out, "%d: Got: [%s]\n", tno, str.z);
}
}else
{
utf8_printf(stderr,
"Unknown operation \"%s\" on selftest line %d\n", zOp, tno);
rc = 1;
break;
}
} /* End loop over rows of content from SELFTEST */
sqlite3_finalize(pStmt);
} /* End loop over k */
freeText(&str);
utf8_printf(p->out, "%d errors out of %d tests\n", nErr, nTest);
}else
if( c=='s' && cli_strncmp(azArg[0], "separator", n)==0 ){
if( nArg<2 || nArg>3 ){
raw_printf(stderr, "Usage: .separator COL ?ROW?\n");
rc = 1;
}
if( nArg>=2 ){
sqlite3_snprintf(sizeof(p->colSeparator), p->colSeparator,
"%.*s", (int)ArraySize(p->colSeparator)-1, azArg[1]);
}
if( nArg>=3 ){
sqlite3_snprintf(sizeof(p->rowSeparator), p->rowSeparator,
"%.*s", (int)ArraySize(p->rowSeparator)-1, azArg[2]);
}
}else
if( c=='s' && n>=4 && cli_strncmp(azArg[0],"sha3sum",n)==0 ){
const char *zLike = 0; /* Which table to checksum. 0 means everything */
int i; /* Loop counter */
int bSchema = 0; /* Also hash the schema */
int bSeparate = 0; /* Hash each table separately */
int iSize = 224; /* Hash algorithm to use */
int bDebug = 0; /* Only show the query that would have run */
sqlite3_stmt *pStmt; /* For querying tables names */
char *zSql; /* SQL to be run */
char *zSep; /* Separator */
ShellText sSql; /* Complete SQL for the query to run the hash */
ShellText sQuery; /* Set of queries used to read all content */
open_db(p, 0);
for(i=1; i<nArg; i++){
const char *z = azArg[i];
if( z[0]=='-' ){
z++;
if( z[0]=='-' ) z++;
if( cli_strcmp(z,"schema")==0 ){
bSchema = 1;
}else
if( cli_strcmp(z,"sha3-224")==0 || cli_strcmp(z,"sha3-256")==0
|| cli_strcmp(z,"sha3-384")==0 || cli_strcmp(z,"sha3-512")==0
){
iSize = atoi(&z[5]);
}else
if( cli_strcmp(z,"debug")==0 ){
bDebug = 1;
}else
{
utf8_printf(stderr, "Unknown option \"%s\" on \"%s\"\n",
azArg[i], azArg[0]);
showHelp(p->out, azArg[0]);
rc = 1;
goto meta_command_exit;
}
}else if( zLike ){
raw_printf(stderr, "Usage: .sha3sum ?OPTIONS? ?LIKE-PATTERN?\n");
rc = 1;
goto meta_command_exit;
}else{
zLike = z;
bSeparate = 1;
if( sqlite3_strlike("sqlite\\_%", zLike, '\\')==0 ) bSchema = 1;
}
}
if( bSchema ){
zSql = "SELECT lower(name) as tname FROM sqlite_schema"
" WHERE type='table' AND coalesce(rootpage,0)>1"
" UNION ALL SELECT 'sqlite_schema'"
" ORDER BY 1 collate nocase";
}else{
zSql = "SELECT lower(name) as tname FROM sqlite_schema"
" WHERE type='table' AND coalesce(rootpage,0)>1"
" AND name NOT LIKE 'sqlite_%'"
" ORDER BY 1 collate nocase";
}
sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
initText(&sQuery);
initText(&sSql);
appendText(&sSql, "WITH [sha3sum$query](a,b) AS(",0);
zSep = "VALUES(";
while( SQLITE_ROW==sqlite3_step(pStmt) ){
const char *zTab = (const char*)sqlite3_column_text(pStmt,0);
if( zTab==0 ) continue;
if( zLike && sqlite3_strlike(zLike, zTab, 0)!=0 ) continue;
if( cli_strncmp(zTab, "sqlite_",7)!=0 ){
appendText(&sQuery,"SELECT * FROM ", 0);
appendText(&sQuery,zTab,'"');
appendText(&sQuery," NOT INDEXED;", 0);
}else if( cli_strcmp(zTab, "sqlite_schema")==0 ){
appendText(&sQuery,"SELECT type,name,tbl_name,sql FROM sqlite_schema"
" ORDER BY name;", 0);
}else if( cli_strcmp(zTab, "sqlite_sequence")==0 ){
appendText(&sQuery,"SELECT name,seq FROM sqlite_sequence"
" ORDER BY name;", 0);
}else if( cli_strcmp(zTab, "sqlite_stat1")==0 ){
appendText(&sQuery,"SELECT tbl,idx,stat FROM sqlite_stat1"
" ORDER BY tbl,idx;", 0);
}else if( cli_strcmp(zTab, "sqlite_stat4")==0 ){
appendText(&sQuery, "SELECT * FROM ", 0);
appendText(&sQuery, zTab, 0);
appendText(&sQuery, " ORDER BY tbl, idx, rowid;\n", 0);
}
appendText(&sSql, zSep, 0);
appendText(&sSql, sQuery.z, '\'');
sQuery.n = 0;
appendText(&sSql, ",", 0);
appendText(&sSql, zTab, '\'');
zSep = "),(";
}
sqlite3_finalize(pStmt);
if( bSeparate ){
zSql = sqlite3_mprintf(
"%s))"
" SELECT lower(hex(sha3_query(a,%d))) AS hash, b AS label"
" FROM [sha3sum$query]",
sSql.z, iSize);
}else{
zSql = sqlite3_mprintf(
"%s))"
" SELECT lower(hex(sha3_query(group_concat(a,''),%d))) AS hash"
" FROM [sha3sum$query]",
sSql.z, iSize);
}
shell_check_oom(zSql);
freeText(&sQuery);
freeText(&sSql);
if( bDebug ){
utf8_printf(p->out, "%s\n", zSql);
}else{
shell_exec(p, zSql, 0);
}
#if !defined(SQLITE_OMIT_SCHEMA_PRAGMAS) && !defined(SQLITE_OMIT_VIRTUALTABLE)
{
int lrc;
char *zRevText = /* Query for reversible to-blob-to-text check */
"SELECT lower(name) as tname FROM sqlite_schema\n"
"WHERE type='table' AND coalesce(rootpage,0)>1\n"
"AND name NOT LIKE 'sqlite_%%'%s\n"
"ORDER BY 1 collate nocase";
zRevText = sqlite3_mprintf(zRevText, zLike? " AND name LIKE $tspec" : "");
zRevText = sqlite3_mprintf(
/* lower-case query is first run, producing upper-case query. */
"with tabcols as materialized(\n"
"select tname, cname\n"
"from ("
" select printf('\"%%w\"',ss.tname) as tname,"
" printf('\"%%w\"',ti.name) as cname\n"
" from (%z) ss\n inner join pragma_table_info(tname) ti))\n"
"select 'SELECT total(bad_text_count) AS bad_text_count\n"
"FROM ('||group_concat(query, ' UNION ALL ')||')' as btc_query\n"
" from (select 'SELECT COUNT(*) AS bad_text_count\n"
"FROM '||tname||' WHERE '\n"
"||group_concat('CAST(CAST('||cname||' AS BLOB) AS TEXT)<>'||cname\n"
"|| ' AND typeof('||cname||')=''text'' ',\n"
"' OR ') as query, tname from tabcols group by tname)"
, zRevText);
shell_check_oom(zRevText);
if( bDebug ) utf8_printf(p->out, "%s\n", zRevText);
lrc = sqlite3_prepare_v2(p->db, zRevText, -1, &pStmt, 0);
if( lrc!=SQLITE_OK ){
/* assert(lrc==SQLITE_NOMEM); // might also be SQLITE_ERROR if the
** user does cruel and unnatural things like ".limit expr_depth 0". */
rc = 1;
}else{
if( zLike ) sqlite3_bind_text(pStmt,1,zLike,-1,SQLITE_STATIC);
lrc = SQLITE_ROW==sqlite3_step(pStmt);
if( lrc ){
const char *zGenQuery = (char*)sqlite3_column_text(pStmt,0);
sqlite3_stmt *pCheckStmt;
lrc = sqlite3_prepare_v2(p->db, zGenQuery, -1, &pCheckStmt, 0);
if( bDebug ) utf8_printf(p->out, "%s\n", zGenQuery);
if( lrc!=SQLITE_OK ){
rc = 1;
}else{
if( SQLITE_ROW==sqlite3_step(pCheckStmt) ){
double countIrreversible = sqlite3_column_double(pCheckStmt, 0);
if( countIrreversible>0 ){
int sz = (int)(countIrreversible + 0.5);
utf8_printf(stderr,
"Digest includes %d invalidly encoded text field%s.\n",
sz, (sz>1)? "s": "");
}
}
sqlite3_finalize(pCheckStmt);
}
sqlite3_finalize(pStmt);
}
}
if( rc ) utf8_printf(stderr, ".sha3sum failed.\n");
sqlite3_free(zRevText);
}
#endif /* !defined(*_OMIT_SCHEMA_PRAGMAS) && !defined(*_OMIT_VIRTUALTABLE) */
sqlite3_free(zSql);
}else
#if !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE)
if( c=='s'
&& (cli_strncmp(azArg[0], "shell", n)==0
|| cli_strncmp(azArg[0],"system",n)==0)
){
char *zCmd;
int i, x;
failIfSafeMode(p, "cannot run .%s in safe mode", azArg[0]);
if( nArg<2 ){
raw_printf(stderr, "Usage: .system COMMAND\n");
rc = 1;
goto meta_command_exit;
}
zCmd = sqlite3_mprintf(strchr(azArg[1],' ')==0?"%s":"\"%s\"", azArg[1]);
for(i=2; i<nArg && zCmd!=0; i++){
zCmd = sqlite3_mprintf(strchr(azArg[i],' ')==0?"%z %s":"%z \"%s\"",
zCmd, azArg[i]);
}
x = zCmd!=0 ? system(zCmd) : 1;
sqlite3_free(zCmd);
if( x ) raw_printf(stderr, "System command returns %d\n", x);
}else
#endif /* !defined(SQLITE_NOHAVE_SYSTEM) && !defined(SQLITE_SHELL_FIDDLE) */
if( c=='s' && cli_strncmp(azArg[0], "show", n)==0 ){
static const char *azBool[] = { "off", "on", "trigger", "full"};
const char *zOut;
int i;
if( nArg!=1 ){
raw_printf(stderr, "Usage: .show\n");
rc = 1;
goto meta_command_exit;
}
utf8_printf(p->out, "%12.12s: %s\n","echo",
azBool[ShellHasFlag(p, SHFLG_Echo)]);
utf8_printf(p->out, "%12.12s: %s\n","eqp", azBool[p->autoEQP&3]);
utf8_printf(p->out, "%12.12s: %s\n","explain",
p->mode==MODE_Explain ? "on" : p->autoExplain ? "auto" : "off");
utf8_printf(p->out,"%12.12s: %s\n","headers", azBool[p->showHeader!=0]);
if( p->mode==MODE_Column
|| (p->mode>=MODE_Markdown && p->mode<=MODE_Box)
){
utf8_printf
(p->out, "%12.12s: %s --wrap %d --wordwrap %s --%squote\n", "mode",
modeDescr[p->mode], p->cmOpts.iWrap,
p->cmOpts.bWordWrap ? "on" : "off",
p->cmOpts.bQuote ? "" : "no");
}else{
utf8_printf(p->out, "%12.12s: %s\n","mode", modeDescr[p->mode]);
}
utf8_printf(p->out, "%12.12s: ", "nullvalue");
output_c_string(p->out, p->nullValue);
raw_printf(p->out, "\n");
utf8_printf(p->out,"%12.12s: %s\n","output",
strlen30(p->outfile) ? p->outfile : "stdout");
utf8_printf(p->out,"%12.12s: ", "colseparator");
output_c_string(p->out, p->colSeparator);
raw_printf(p->out, "\n");
utf8_printf(p->out,"%12.12s: ", "rowseparator");
output_c_string(p->out, p->rowSeparator);
raw_printf(p->out, "\n");
switch( p->statsOn ){
case 0: zOut = "off"; break;
default: zOut = "on"; break;
case 2: zOut = "stmt"; break;
case 3: zOut = "vmstep"; break;
}
utf8_printf(p->out, "%12.12s: %s\n","stats", zOut);
utf8_printf(p->out, "%12.12s: ", "width");
for (i=0;i<p->nWidth;i++) {
raw_printf(p->out, "%d ", p->colWidth[i]);
}
raw_printf(p->out, "\n");
utf8_printf(p->out, "%12.12s: %s\n", "filename",
p->pAuxDb->zDbFilename ? p->pAuxDb->zDbFilename : "");
}else
if( c=='s' && cli_strncmp(azArg[0], "stats", n)==0 ){
if( nArg==2 ){
if( cli_strcmp(azArg[1],"stmt")==0 ){
p->statsOn = 2;
}else if( cli_strcmp(azArg[1],"vmstep")==0 ){
p->statsOn = 3;
}else{
p->statsOn = (u8)booleanValue(azArg[1]);
}
}else if( nArg==1 ){
display_stats(p->db, p, 0);
}else{
raw_printf(stderr, "Usage: .stats ?on|off|stmt|vmstep?\n");
rc = 1;
}
}else
if( (c=='t' && n>1 && cli_strncmp(azArg[0], "tables", n)==0)
|| (c=='i' && (cli_strncmp(azArg[0], "indices", n)==0
|| cli_strncmp(azArg[0], "indexes", n)==0) )
){
sqlite3_stmt *pStmt;
char **azResult;
int nRow, nAlloc;
int ii;
ShellText s;
initText(&s);
open_db(p, 0);
rc = sqlite3_prepare_v2(p->db, "PRAGMA database_list", -1, &pStmt, 0);
if( rc ){
sqlite3_finalize(pStmt);
return shellDatabaseError(p->db);
}
if( nArg>2 && c=='i' ){
/* It is an historical accident that the .indexes command shows an error
** when called with the wrong number of arguments whereas the .tables
** command does not. */
raw_printf(stderr, "Usage: .indexes ?LIKE-PATTERN?\n");
rc = 1;
sqlite3_finalize(pStmt);
goto meta_command_exit;
}
for(ii=0; sqlite3_step(pStmt)==SQLITE_ROW; ii++){
const char *zDbName = (const char*)sqlite3_column_text(pStmt, 1);
if( zDbName==0 ) continue;
if( s.z && s.z[0] ) appendText(&s, " UNION ALL ", 0);
if( sqlite3_stricmp(zDbName, "main")==0 ){
appendText(&s, "SELECT name FROM ", 0);
}else{
appendText(&s, "SELECT ", 0);
appendText(&s, zDbName, '\'');
appendText(&s, "||'.'||name FROM ", 0);
}
appendText(&s, zDbName, '"');
appendText(&s, ".sqlite_schema ", 0);
if( c=='t' ){
appendText(&s," WHERE type IN ('table','view')"
" AND name NOT LIKE 'sqlite_%'"
" AND name LIKE ?1", 0);
}else{
appendText(&s," WHERE type='index'"
" AND tbl_name LIKE ?1", 0);
}
}
rc = sqlite3_finalize(pStmt);
if( rc==SQLITE_OK ){
appendText(&s, " ORDER BY 1", 0);
rc = sqlite3_prepare_v2(p->db, s.z, -1, &pStmt, 0);
}
freeText(&s);
if( rc ) return shellDatabaseError(p->db);
/* Run the SQL statement prepared by the above block. Store the results
** as an array of nul-terminated strings in azResult[]. */
nRow = nAlloc = 0;
azResult = 0;
if( nArg>1 ){
sqlite3_bind_text(pStmt, 1, azArg[1], -1, SQLITE_TRANSIENT);
}else{
sqlite3_bind_text(pStmt, 1, "%", -1, SQLITE_STATIC);
}
while( sqlite3_step(pStmt)==SQLITE_ROW ){
if( nRow>=nAlloc ){
char **azNew;
int n2 = nAlloc*2 + 10;
azNew = sqlite3_realloc64(azResult, sizeof(azResult[0])*n2);
shell_check_oom(azNew);
nAlloc = n2;
azResult = azNew;
}
azResult[nRow] = sqlite3_mprintf("%s", sqlite3_column_text(pStmt, 0));
shell_check_oom(azResult[nRow]);
nRow++;
}
if( sqlite3_finalize(pStmt)!=SQLITE_OK ){
rc = shellDatabaseError(p->db);
}
/* Pretty-print the contents of array azResult[] to the output */
if( rc==0 && nRow>0 ){
int len, maxlen = 0;
int i, j;
int nPrintCol, nPrintRow;
for(i=0; i<nRow; i++){
len = strlen30(azResult[i]);
if( len>maxlen ) maxlen = len;
}
nPrintCol = 80/(maxlen+2);
if( nPrintCol<1 ) nPrintCol = 1;
nPrintRow = (nRow + nPrintCol - 1)/nPrintCol;
for(i=0; i<nPrintRow; i++){
for(j=i; j<nRow; j+=nPrintRow){
char *zSp = j<nPrintRow ? "" : " ";
utf8_printf(p->out, "%s%-*s", zSp, maxlen,
azResult[j] ? azResult[j]:"");
}
raw_printf(p->out, "\n");
}
}
for(ii=0; ii<nRow; ii++) sqlite3_free(azResult[ii]);
sqlite3_free(azResult);
}else
#ifndef SQLITE_SHELL_FIDDLE
/* Begin redirecting output to the file "testcase-out.txt" */
if( c=='t' && cli_strcmp(azArg[0],"testcase")==0 ){
output_reset(p);
p->out = output_file_open("testcase-out.txt", 0);
if( p->out==0 ){
raw_printf(stderr, "Error: cannot open 'testcase-out.txt'\n");
}
if( nArg>=2 ){
sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "%s", azArg[1]);
}else{
sqlite3_snprintf(sizeof(p->zTestcase), p->zTestcase, "?");
}
}else
#endif /* !defined(SQLITE_SHELL_FIDDLE) */
#ifndef SQLITE_UNTESTABLE
if( c=='t' && n>=8 && cli_strncmp(azArg[0], "testctrl", n)==0 ){
static const struct {
const char *zCtrlName; /* Name of a test-control option */
int ctrlCode; /* Integer code for that option */
int unSafe; /* Not valid unless --unsafe-testing */
const char *zUsage; /* Usage notes */
} aCtrl[] = {
{"always", SQLITE_TESTCTRL_ALWAYS, 1, "BOOLEAN" },
{"assert", SQLITE_TESTCTRL_ASSERT, 1, "BOOLEAN" },
/*{"benign_malloc_hooks",SQLITE_TESTCTRL_BENIGN_MALLOC_HOOKS,1, "" },*/
/*{"bitvec_test", SQLITE_TESTCTRL_BITVEC_TEST, 1, "" },*/
{"byteorder", SQLITE_TESTCTRL_BYTEORDER, 0, "" },
{"extra_schema_checks",SQLITE_TESTCTRL_EXTRA_SCHEMA_CHECKS,0,"BOOLEAN" },
/*{"fault_install", SQLITE_TESTCTRL_FAULT_INSTALL, 1,"" },*/
{"imposter", SQLITE_TESTCTRL_IMPOSTER,1,"SCHEMA ON/OFF ROOTPAGE"},
{"internal_functions", SQLITE_TESTCTRL_INTERNAL_FUNCTIONS,0,"" },
{"localtime_fault", SQLITE_TESTCTRL_LOCALTIME_FAULT,0,"BOOLEAN" },
{"never_corrupt", SQLITE_TESTCTRL_NEVER_CORRUPT,1, "BOOLEAN" },
{"optimizations", SQLITE_TESTCTRL_OPTIMIZATIONS,0,"DISABLE-MASK" },
#ifdef YYCOVERAGE
{"parser_coverage", SQLITE_TESTCTRL_PARSER_COVERAGE,0,"" },
#endif
{"pending_byte", SQLITE_TESTCTRL_PENDING_BYTE,0, "OFFSET " },
{"prng_restore", SQLITE_TESTCTRL_PRNG_RESTORE,0, "" },
{"prng_save", SQLITE_TESTCTRL_PRNG_SAVE, 0, "" },
{"prng_seed", SQLITE_TESTCTRL_PRNG_SEED, 0, "SEED ?db?" },
{"seek_count", SQLITE_TESTCTRL_SEEK_COUNT, 0, "" },
{"sorter_mmap", SQLITE_TESTCTRL_SORTER_MMAP, 0, "NMAX" },
{"tune", SQLITE_TESTCTRL_TUNE, 1, "ID VALUE" },
{"uselongdouble", SQLITE_TESTCTRL_USELONGDOUBLE,0,"?BOOLEAN|\"default\"?"},
};
int testctrl = -1;
int iCtrl = -1;
int rc2 = 0; /* 0: usage. 1: %d 2: %x 3: no-output */
int isOk = 0;
int i, n2;
const char *zCmd = 0;
open_db(p, 0);
zCmd = nArg>=2 ? azArg[1] : "help";
/* The argument can optionally begin with "-" or "--" */
if( zCmd[0]=='-' && zCmd[1] ){
zCmd++;
if( zCmd[0]=='-' && zCmd[1] ) zCmd++;
}
/* --help lists all test-controls */
if( cli_strcmp(zCmd,"help")==0 ){
utf8_printf(p->out, "Available test-controls:\n");
for(i=0; i<ArraySize(aCtrl); i++){
if( aCtrl[i].unSafe && !ShellHasFlag(p,SHFLG_TestingMode) ) continue;
utf8_printf(p->out, " .testctrl %s %s\n",
aCtrl[i].zCtrlName, aCtrl[i].zUsage);
}
rc = 1;
goto meta_command_exit;
}
/* convert testctrl text option to value. allow any unique prefix
** of the option name, or a numerical value. */
n2 = strlen30(zCmd);
for(i=0; i<ArraySize(aCtrl); i++){
if( aCtrl[i].unSafe && !ShellHasFlag(p,SHFLG_TestingMode) ) continue;
if( cli_strncmp(zCmd, aCtrl[i].zCtrlName, n2)==0 ){
if( testctrl<0 ){
testctrl = aCtrl[i].ctrlCode;
iCtrl = i;
}else{
utf8_printf(stderr, "Error: ambiguous test-control: \"%s\"\n"
"Use \".testctrl --help\" for help\n", zCmd);
rc = 1;
goto meta_command_exit;
}
}
}
if( testctrl<0 ){
utf8_printf(stderr,"Error: unknown test-control: %s\n"
"Use \".testctrl --help\" for help\n", zCmd);
}else{
switch(testctrl){
/* sqlite3_test_control(int, db, int) */
case SQLITE_TESTCTRL_OPTIMIZATIONS:
if( nArg==3 ){
unsigned int opt = (unsigned int)strtol(azArg[2], 0, 0);
rc2 = sqlite3_test_control(testctrl, p->db, opt);
isOk = 3;
}
break;
/* sqlite3_test_control(int) */
case SQLITE_TESTCTRL_PRNG_SAVE:
case SQLITE_TESTCTRL_PRNG_RESTORE:
case SQLITE_TESTCTRL_BYTEORDER:
if( nArg==2 ){
rc2 = sqlite3_test_control(testctrl);
isOk = testctrl==SQLITE_TESTCTRL_BYTEORDER ? 1 : 3;
}
break;
/* sqlite3_test_control(int, uint) */
case SQLITE_TESTCTRL_PENDING_BYTE:
if( nArg==3 ){
unsigned int opt = (unsigned int)integerValue(azArg[2]);
rc2 = sqlite3_test_control(testctrl, opt);
isOk = 3;
}
break;
/* sqlite3_test_control(int, int, sqlite3*) */
case SQLITE_TESTCTRL_PRNG_SEED:
if( nArg==3 || nArg==4 ){
int ii = (int)integerValue(azArg[2]);
sqlite3 *db;
if( ii==0 && cli_strcmp(azArg[2],"random")==0 ){
sqlite3_randomness(sizeof(ii),&ii);
printf("-- random seed: %d\n", ii);
}
if( nArg==3 ){
db = 0;
}else{
db = p->db;
/* Make sure the schema has been loaded */
sqlite3_table_column_metadata(db, 0, "x", 0, 0, 0, 0, 0, 0);
}
rc2 = sqlite3_test_control(testctrl, ii, db);
isOk = 3;
}
break;
/* sqlite3_test_control(int, int) */
case SQLITE_TESTCTRL_ASSERT:
case SQLITE_TESTCTRL_ALWAYS:
if( nArg==3 ){
int opt = booleanValue(azArg[2]);
rc2 = sqlite3_test_control(testctrl, opt);
isOk = 1;
}
break;
/* sqlite3_test_control(int, int) */
case SQLITE_TESTCTRL_LOCALTIME_FAULT:
case SQLITE_TESTCTRL_NEVER_CORRUPT:
if( nArg==3 ){
int opt = booleanValue(azArg[2]);
rc2 = sqlite3_test_control(testctrl, opt);
isOk = 3;
}
break;
/* sqlite3_test_control(int, int) */
case SQLITE_TESTCTRL_USELONGDOUBLE: {
int opt = -1;
if( nArg==3 ){
if( cli_strcmp(azArg[2],"default")==0 ){
opt = 2;
}else{
opt = booleanValue(azArg[2]);
}
}
rc2 = sqlite3_test_control(testctrl, opt);
isOk = 1;
break;
}
/* sqlite3_test_control(sqlite3*) */
case SQLITE_TESTCTRL_INTERNAL_FUNCTIONS:
rc2 = sqlite3_test_control(testctrl, p->db);
isOk = 3;
break;
case SQLITE_TESTCTRL_IMPOSTER:
if( nArg==5 ){
rc2 = sqlite3_test_control(testctrl, p->db,
azArg[2],
integerValue(azArg[3]),
integerValue(azArg[4]));
isOk = 3;
}
break;
case SQLITE_TESTCTRL_SEEK_COUNT: {
u64 x = 0;
rc2 = sqlite3_test_control(testctrl, p->db, &x);
utf8_printf(p->out, "%llu\n", x);
isOk = 3;
break;
}
#ifdef YYCOVERAGE
case SQLITE_TESTCTRL_PARSER_COVERAGE: {
if( nArg==2 ){
sqlite3_test_control(testctrl, p->out);
isOk = 3;
}
break;
}
#endif
#ifdef SQLITE_DEBUG
case SQLITE_TESTCTRL_TUNE: {
if( nArg==4 ){
int id = (int)integerValue(azArg[2]);
int val = (int)integerValue(azArg[3]);
sqlite3_test_control(testctrl, id, &val);
isOk = 3;
}else if( nArg==3 ){
int id = (int)integerValue(azArg[2]);
sqlite3_test_control(testctrl, -id, &rc2);
isOk = 1;
}else if( nArg==2 ){
int id = 1;
while(1){
int val = 0;
rc2 = sqlite3_test_control(testctrl, -id, &val);
if( rc2!=SQLITE_OK ) break;
if( id>1 ) utf8_printf(p->out, " ");
utf8_printf(p->out, "%d: %d", id, val);
id++;
}
if( id>1 ) utf8_printf(p->out, "\n");
isOk = 3;
}
break;
}
#endif
case SQLITE_TESTCTRL_SORTER_MMAP:
if( nArg==3 ){
int opt = (unsigned int)integerValue(azArg[2]);
rc2 = sqlite3_test_control(testctrl, p->db, opt);
isOk = 3;
}
break;
}
}
if( isOk==0 && iCtrl>=0 ){
utf8_printf(p->out, "Usage: .testctrl %s %s\n", zCmd,aCtrl[iCtrl].zUsage);
rc = 1;
}else if( isOk==1 ){
raw_printf(p->out, "%d\n", rc2);
}else if( isOk==2 ){
raw_printf(p->out, "0x%08x\n", rc2);
}
}else
#endif /* !defined(SQLITE_UNTESTABLE) */
if( c=='t' && n>4 && cli_strncmp(azArg[0], "timeout", n)==0 ){
open_db(p, 0);
sqlite3_busy_timeout(p->db, nArg>=2 ? (int)integerValue(azArg[1]) : 0);
}else
if( c=='t' && n>=5 && cli_strncmp(azArg[0], "timer", n)==0 ){
if( nArg==2 ){
enableTimer = booleanValue(azArg[1]);
if( enableTimer && !HAS_TIMER ){
raw_printf(stderr, "Error: timer not available on this system.\n");
enableTimer = 0;
}
}else{
raw_printf(stderr, "Usage: .timer on|off\n");
rc = 1;
}
}else
#ifndef SQLITE_OMIT_TRACE
if( c=='t' && cli_strncmp(azArg[0], "trace", n)==0 ){
int mType = 0;
int jj;
open_db(p, 0);
for(jj=1; jj<nArg; jj++){
const char *z = azArg[jj];
if( z[0]=='-' ){
if( optionMatch(z, "expanded") ){
p->eTraceType = SHELL_TRACE_EXPANDED;
}
#ifdef SQLITE_ENABLE_NORMALIZE
else if( optionMatch(z, "normalized") ){
p->eTraceType = SHELL_TRACE_NORMALIZED;
}
#endif
else if( optionMatch(z, "plain") ){
p->eTraceType = SHELL_TRACE_PLAIN;
}
else if( optionMatch(z, "profile") ){
mType |= SQLITE_TRACE_PROFILE;
}
else if( optionMatch(z, "row") ){
mType |= SQLITE_TRACE_ROW;
}
else if( optionMatch(z, "stmt") ){
mType |= SQLITE_TRACE_STMT;
}
else if( optionMatch(z, "close") ){
mType |= SQLITE_TRACE_CLOSE;
}
else {
raw_printf(stderr, "Unknown option \"%s\" on \".trace\"\n", z);
rc = 1;
goto meta_command_exit;
}
}else{
output_file_close(p->traceOut);
p->traceOut = output_file_open(z, 0);
}
}
if( p->traceOut==0 ){
sqlite3_trace_v2(p->db, 0, 0, 0);
}else{
if( mType==0 ) mType = SQLITE_TRACE_STMT;
sqlite3_trace_v2(p->db, mType, sql_trace_callback, p);
}
}else
#endif /* !defined(SQLITE_OMIT_TRACE) */
#if defined(SQLITE_DEBUG) && !defined(SQLITE_OMIT_VIRTUALTABLE)
if( c=='u' && cli_strncmp(azArg[0], "unmodule", n)==0 ){
int ii;
int lenOpt;
char *zOpt;
if( nArg<2 ){
raw_printf(stderr, "Usage: .unmodule [--allexcept] NAME ...\n");
rc = 1;
goto meta_command_exit;
}
open_db(p, 0);
zOpt = azArg[1];
if( zOpt[0]=='-' && zOpt[1]=='-' && zOpt[2]!=0 ) zOpt++;
lenOpt = (int)strlen(zOpt);
if( lenOpt>=3 && cli_strncmp(zOpt, "-allexcept",lenOpt)==0 ){
assert( azArg[nArg]==0 );
sqlite3_drop_modules(p->db, nArg>2 ? (const char**)(azArg+2) : 0);
}else{
for(ii=1; ii<nArg; ii++){
sqlite3_create_module(p->db, azArg[ii], 0, 0);
}
}
}else
#endif
#if SQLITE_USER_AUTHENTICATION
if( c=='u' && cli_strncmp(azArg[0], "user", n)==0 ){
if( nArg<2 ){
raw_printf(stderr, "Usage: .user SUBCOMMAND ...\n");
rc = 1;
goto meta_command_exit;
}
open_db(p, 0);
if( cli_strcmp(azArg[1],"login")==0 ){
if( nArg!=4 ){
raw_printf(stderr, "Usage: .user login USER PASSWORD\n");
rc = 1;
goto meta_command_exit;
}
rc = sqlite3_user_authenticate(p->db, azArg[2], azArg[3],
strlen30(azArg[3]));
if( rc ){
utf8_printf(stderr, "Authentication failed for user %s\n", azArg[2]);
rc = 1;
}
}else if( cli_strcmp(azArg[1],"add")==0 ){
if( nArg!=5 ){
raw_printf(stderr, "Usage: .user add USER PASSWORD ISADMIN\n");
rc = 1;
goto meta_command_exit;
}
rc = sqlite3_user_add(p->db, azArg[2], azArg[3], strlen30(azArg[3]),
booleanValue(azArg[4]));
if( rc ){
raw_printf(stderr, "User-Add failed: %d\n", rc);
rc = 1;
}
}else if( cli_strcmp(azArg[1],"edit")==0 ){
if( nArg!=5 ){
raw_printf(stderr, "Usage: .user edit USER PASSWORD ISADMIN\n");
rc = 1;
goto meta_command_exit;
}
rc = sqlite3_user_change(p->db, azArg[2], azArg[3], strlen30(azArg[3]),
booleanValue(azArg[4]));
if( rc ){
raw_printf(stderr, "User-Edit failed: %d\n", rc);
rc = 1;
}
}else if( cli_strcmp(azArg[1],"delete")==0 ){
if( nArg!=3 ){
raw_printf(stderr, "Usage: .user delete USER\n");
rc = 1;
goto meta_command_exit;
}
rc = sqlite3_user_delete(p->db, azArg[2]);
if( rc ){
raw_printf(stderr, "User-Delete failed: %d\n", rc);
rc = 1;
}
}else{
raw_printf(stderr, "Usage: .user login|add|edit|delete ...\n");
rc = 1;
goto meta_command_exit;
}
}else
#endif /* SQLITE_USER_AUTHENTICATION */
if( c=='v' && cli_strncmp(azArg[0], "version", n)==0 ){
char *zPtrSz = sizeof(void*)==8 ? "64-bit" : "32-bit";
utf8_printf(p->out, "SQLite %s %s\n" /*extra-version-info*/,
sqlite3_libversion(), sqlite3_sourceid());
#if SQLITE_HAVE_ZLIB
utf8_printf(p->out, "zlib version %s\n", zlibVersion());
#endif
#define CTIMEOPT_VAL_(opt) #opt
#define CTIMEOPT_VAL(opt) CTIMEOPT_VAL_(opt)
#if defined(__clang__) && defined(__clang_major__)
utf8_printf(p->out, "clang-" CTIMEOPT_VAL(__clang_major__) "."
CTIMEOPT_VAL(__clang_minor__) "."
CTIMEOPT_VAL(__clang_patchlevel__) " (%s)\n", zPtrSz);
#elif defined(_MSC_VER)
utf8_printf(p->out, "msvc-" CTIMEOPT_VAL(_MSC_VER) " (%s)\n", zPtrSz);
#elif defined(__GNUC__) && defined(__VERSION__)
utf8_printf(p->out, "gcc-" __VERSION__ " (%s)\n", zPtrSz);
#endif
}else
if( c=='v' && cli_strncmp(azArg[0], "vfsinfo", n)==0 ){
const char *zDbName = nArg==2 ? azArg[1] : "main";
sqlite3_vfs *pVfs = 0;
if( p->db ){
sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFS_POINTER, &pVfs);
if( pVfs ){
utf8_printf(p->out, "vfs.zName = \"%s\"\n", pVfs->zName);
raw_printf(p->out, "vfs.iVersion = %d\n", pVfs->iVersion);
raw_printf(p->out, "vfs.szOsFile = %d\n", pVfs->szOsFile);
raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname);
}
}
}else
if( c=='v' && cli_strncmp(azArg[0], "vfslist", n)==0 ){
sqlite3_vfs *pVfs;
sqlite3_vfs *pCurrent = 0;
if( p->db ){
sqlite3_file_control(p->db, "main", SQLITE_FCNTL_VFS_POINTER, &pCurrent);
}
for(pVfs=sqlite3_vfs_find(0); pVfs; pVfs=pVfs->pNext){
utf8_printf(p->out, "vfs.zName = \"%s\"%s\n", pVfs->zName,
pVfs==pCurrent ? " <--- CURRENT" : "");
raw_printf(p->out, "vfs.iVersion = %d\n", pVfs->iVersion);
raw_printf(p->out, "vfs.szOsFile = %d\n", pVfs->szOsFile);
raw_printf(p->out, "vfs.mxPathname = %d\n", pVfs->mxPathname);
if( pVfs->pNext ){
raw_printf(p->out, "-----------------------------------\n");
}
}
}else
if( c=='v' && cli_strncmp(azArg[0], "vfsname", n)==0 ){
const char *zDbName = nArg==2 ? azArg[1] : "main";
char *zVfsName = 0;
if( p->db ){
sqlite3_file_control(p->db, zDbName, SQLITE_FCNTL_VFSNAME, &zVfsName);
if( zVfsName ){
utf8_printf(p->out, "%s\n", zVfsName);
sqlite3_free(zVfsName);
}
}
}else
if( c=='w' && cli_strncmp(azArg[0], "wheretrace", n)==0 ){
unsigned int x = nArg>=2? (unsigned int)integerValue(azArg[1]) : 0xffffffff;
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &x);
}else
if( c=='w' && cli_strncmp(azArg[0], "width", n)==0 ){
int j;
assert( nArg<=ArraySize(azArg) );
p->nWidth = nArg-1;
p->colWidth = realloc(p->colWidth, (p->nWidth+1)*sizeof(int)*2);
if( p->colWidth==0 && p->nWidth>0 ) shell_out_of_memory();
if( p->nWidth ) p->actualWidth = &p->colWidth[p->nWidth];
for(j=1; j<nArg; j++){
p->colWidth[j-1] = (int)integerValue(azArg[j]);
}
}else
{
utf8_printf(stderr, "Error: unknown command or invalid arguments: "
" \"%s\". Enter \".help\" for help\n", azArg[0]);
rc = 1;
}
meta_command_exit:
if( p->outCount ){
p->outCount--;
if( p->outCount==0 ) output_reset(p);
}
p->bSafeMode = p->bSafeModePersist;
return rc;
}
/* Line scan result and intermediate states (supporting scan resumption)
*/
#ifndef CHAR_BIT
# define CHAR_BIT 8
#endif
typedef enum {
QSS_HasDark = 1<<CHAR_BIT, QSS_EndingSemi = 2<<CHAR_BIT,
QSS_CharMask = (1<<CHAR_BIT)-1, QSS_ScanMask = 3<<CHAR_BIT,
QSS_Start = 0
} QuickScanState;
#define QSS_SETV(qss, newst) ((newst) | ((qss) & QSS_ScanMask))
#define QSS_INPLAIN(qss) (((qss)&QSS_CharMask)==QSS_Start)
#define QSS_PLAINWHITE(qss) (((qss)&~QSS_EndingSemi)==QSS_Start)
#define QSS_PLAINDARK(qss) (((qss)&~QSS_EndingSemi)==QSS_HasDark)
#define QSS_SEMITERM(qss) (((qss)&~QSS_HasDark)==QSS_EndingSemi)
/*
** Scan line for classification to guide shell's handling.
** The scan is resumable for subsequent lines when prior
** return values are passed as the 2nd argument.
*/
static QuickScanState quickscan(char *zLine, QuickScanState qss,
SCAN_TRACKER_REFTYPE pst){
char cin;
char cWait = (char)qss; /* intentional narrowing loss */
if( cWait==0 ){
PlainScan:
assert( cWait==0 );
while( (cin = *zLine++)!=0 ){
if( IsSpace(cin) )
continue;
switch (cin){
case '-':
if( *zLine!='-' )
break;
while((cin = *++zLine)!=0 )
if( cin=='\n')
goto PlainScan;
return qss;
case ';':
qss |= QSS_EndingSemi;
continue;
case '/':
if( *zLine=='*' ){
++zLine;
cWait = '*';
CONTINUE_PROMPT_AWAITS(pst, "/*");
qss = QSS_SETV(qss, cWait);
goto TermScan;
}
break;
case '[':
cin = ']';
deliberate_fall_through;
case '`': case '\'': case '"':
cWait = cin;
qss = QSS_HasDark | cWait;
CONTINUE_PROMPT_AWAITC(pst, cin);
goto TermScan;
case '(':
CONTINUE_PAREN_INCR(pst, 1);
break;
case ')':
CONTINUE_PAREN_INCR(pst, -1);
break;
default:
break;
}
qss = (qss & ~QSS_EndingSemi) | QSS_HasDark;
}
}else{
TermScan:
while( (cin = *zLine++)!=0 ){
if( cin==cWait ){
switch( cWait ){
case '*':
if( *zLine != '/' )
continue;
++zLine;
cWait = 0;
CONTINUE_PROMPT_AWAITC(pst, 0);
qss = QSS_SETV(qss, 0);
goto PlainScan;
case '`': case '\'': case '"':
if(*zLine==cWait){
/* Swallow doubled end-delimiter.*/
++zLine;
continue;
}
deliberate_fall_through;
case ']':
cWait = 0;
CONTINUE_PROMPT_AWAITC(pst, 0);
qss = QSS_SETV(qss, 0);
goto PlainScan;
default: assert(0);
}
}
}
}
return qss;
}
/*
** Return TRUE if the line typed in is an SQL command terminator other
** than a semi-colon. The SQL Server style "go" command is understood
** as is the Oracle "/".
*/
static int line_is_command_terminator(char *zLine){
while( IsSpace(zLine[0]) ){ zLine++; };
if( zLine[0]=='/' )
zLine += 1; /* Oracle */
else if ( ToLower(zLine[0])=='g' && ToLower(zLine[1])=='o' )
zLine += 2; /* SQL Server */
else
return 0;
return quickscan(zLine, QSS_Start, 0)==QSS_Start;
}
/*
** The CLI needs a working sqlite3_complete() to work properly. So error
** out of the build if compiling with SQLITE_OMIT_COMPLETE.
*/
#ifdef SQLITE_OMIT_COMPLETE
# error the CLI application is imcompatable with SQLITE_OMIT_COMPLETE.
#endif
/*
** Return true if zSql is a complete SQL statement. Return false if it
** ends in the middle of a string literal or C-style comment.
*/
static int line_is_complete(char *zSql, int nSql){
int rc;
if( zSql==0 ) return 1;
zSql[nSql] = ';';
zSql[nSql+1] = 0;
rc = sqlite3_complete(zSql);
zSql[nSql] = 0;
return rc;
}
/*
** Run a single line of SQL. Return the number of errors.
*/
static int runOneSqlLine(ShellState *p, char *zSql, FILE *in, int startline){
int rc;
char *zErrMsg = 0;
open_db(p, 0);
if( ShellHasFlag(p,SHFLG_Backslash) ) resolve_backslashes(zSql);
if( p->flgProgress & SHELL_PROGRESS_RESET ) p->nProgress = 0;
BEGIN_TIMER;
rc = shell_exec(p, zSql, &zErrMsg);
END_TIMER;
if( rc || zErrMsg ){
char zPrefix[100];
const char *zErrorTail;
const char *zErrorType;
if( zErrMsg==0 ){
zErrorType = "Error";
zErrorTail = sqlite3_errmsg(p->db);
}else if( cli_strncmp(zErrMsg, "in prepare, ",12)==0 ){
zErrorType = "Parse error";
zErrorTail = &zErrMsg[12];
}else if( cli_strncmp(zErrMsg, "stepping, ", 10)==0 ){
zErrorType = "Runtime error";
zErrorTail = &zErrMsg[10];
}else{
zErrorType = "Error";
zErrorTail = zErrMsg;
}
if( in!=0 || !stdin_is_interactive ){
sqlite3_snprintf(sizeof(zPrefix), zPrefix,
"%s near line %d:", zErrorType, startline);
}else{
sqlite3_snprintf(sizeof(zPrefix), zPrefix, "%s:", zErrorType);
}
utf8_printf(stderr, "%s %s\n", zPrefix, zErrorTail);
sqlite3_free(zErrMsg);
zErrMsg = 0;
return 1;
}else if( ShellHasFlag(p, SHFLG_CountChanges) ){
char zLineBuf[2000];
sqlite3_snprintf(sizeof(zLineBuf), zLineBuf,
"changes: %lld total_changes: %lld",
sqlite3_changes64(p->db), sqlite3_total_changes64(p->db));
raw_printf(p->out, "%s\n", zLineBuf);
}
return 0;
}
static void echo_group_input(ShellState *p, const char *zDo){
if( ShellHasFlag(p, SHFLG_Echo) ) utf8_printf(p->out, "%s\n", zDo);
}
#ifdef SQLITE_SHELL_FIDDLE
/*
** Alternate one_input_line() impl for wasm mode. This is not in the primary
** impl because we need the global shellState and cannot access it from that
** function without moving lots of code around (creating a larger/messier diff).
*/
static char *one_input_line(FILE *in, char *zPrior, int isContinuation){
/* Parse the next line from shellState.wasm.zInput. */
const char *zBegin = shellState.wasm.zPos;
const char *z = zBegin;
char *zLine = 0;
i64 nZ = 0;
UNUSED_PARAMETER(in);
UNUSED_PARAMETER(isContinuation);
if(!z || !*z){
return 0;
}
while(*z && isspace(*z)) ++z;
zBegin = z;
for(; *z && '\n'!=*z; ++nZ, ++z){}
if(nZ>0 && '\r'==zBegin[nZ-1]){
--nZ;
}
shellState.wasm.zPos = z;
zLine = realloc(zPrior, nZ+1);
shell_check_oom(zLine);
memcpy(zLine, zBegin, nZ);
zLine[nZ] = 0;
return zLine;
}
#endif /* SQLITE_SHELL_FIDDLE */
/*
** Read input from *in and process it. If *in==0 then input
** is interactive - the user is typing it it. Otherwise, input
** is coming from a file or device. A prompt is issued and history
** is saved only if input is interactive. An interrupt signal will
** cause this routine to exit immediately, unless input is interactive.
**
** Return the number of errors.
*/
static int process_input(ShellState *p){
char *zLine = 0; /* A single input line */
char *zSql = 0; /* Accumulated SQL text */
i64 nLine; /* Length of current line */
i64 nSql = 0; /* Bytes of zSql[] used */
i64 nAlloc = 0; /* Allocated zSql[] space */
int rc; /* Error code */
int errCnt = 0; /* Number of errors seen */
i64 startline = 0; /* Line number for start of current input */
QuickScanState qss = QSS_Start; /* Accumulated line status (so far) */
if( p->inputNesting==MAX_INPUT_NESTING ){
/* This will be more informative in a later version. */
utf8_printf(stderr,"Input nesting limit (%d) reached at line %d."
" Check recursion.\n", MAX_INPUT_NESTING, p->lineno);
return 1;
}
++p->inputNesting;
p->lineno = 0;
CONTINUE_PROMPT_RESET;
while( errCnt==0 || !bail_on_error || (p->in==0 && stdin_is_interactive) ){
fflush(p->out);
zLine = one_input_line(p->in, zLine, nSql>0);
if( zLine==0 ){
/* End of input */
if( p->in==0 && stdin_is_interactive ) printf("\n");
break;
}
if( seenInterrupt ){
if( p->in!=0 ) break;
seenInterrupt = 0;
}
p->lineno++;
if( QSS_INPLAIN(qss)
&& line_is_command_terminator(zLine)
&& line_is_complete(zSql, nSql) ){
memcpy(zLine,";",2);
}
qss = quickscan(zLine, qss, CONTINUE_PROMPT_PSTATE);
if( QSS_PLAINWHITE(qss) && nSql==0 ){
/* Just swallow single-line whitespace */
echo_group_input(p, zLine);
qss = QSS_Start;
continue;
}
if( zLine && (zLine[0]=='.' || zLine[0]=='#') && nSql==0 ){
CONTINUE_PROMPT_RESET;
echo_group_input(p, zLine);
if( zLine[0]=='.' ){
rc = do_meta_command(zLine, p);
if( rc==2 ){ /* exit requested */
break;
}else if( rc ){
errCnt++;
}
}
qss = QSS_Start;
continue;
}
/* No single-line dispositions remain; accumulate line(s). */
nLine = strlen(zLine);
if( nSql+nLine+2>=nAlloc ){
/* Grow buffer by half-again increments when big. */
nAlloc = nSql+(nSql>>1)+nLine+100;
zSql = realloc(zSql, nAlloc);
shell_check_oom(zSql);
}
if( nSql==0 ){
i64 i;
for(i=0; zLine[i] && IsSpace(zLine[i]); i++){}
assert( nAlloc>0 && zSql!=0 );
memcpy(zSql, zLine+i, nLine+1-i);
startline = p->lineno;
nSql = nLine-i;
}else{
zSql[nSql++] = '\n';
memcpy(zSql+nSql, zLine, nLine+1);
nSql += nLine;
}
if( nSql && QSS_SEMITERM(qss) && sqlite3_complete(zSql) ){
echo_group_input(p, zSql);
errCnt += runOneSqlLine(p, zSql, p->in, startline);
CONTINUE_PROMPT_RESET;
nSql = 0;
if( p->outCount ){
output_reset(p);
p->outCount = 0;
}else{
clearTempFile(p);
}
p->bSafeMode = p->bSafeModePersist;
qss = QSS_Start;
}else if( nSql && QSS_PLAINWHITE(qss) ){
echo_group_input(p, zSql);
nSql = 0;
qss = QSS_Start;
}
}
if( nSql ){
/* This may be incomplete. Let the SQL parser deal with that. */
echo_group_input(p, zSql);
errCnt += runOneSqlLine(p, zSql, p->in, startline);
CONTINUE_PROMPT_RESET;
}
free(zSql);
free(zLine);
--p->inputNesting;
return errCnt>0;
}
/*
** Return a pathname which is the user's home directory. A
** 0 return indicates an error of some kind.
*/
static char *find_home_dir(int clearFlag){
static char *home_dir = NULL;
if( clearFlag ){
free(home_dir);
home_dir = 0;
return 0;
}
if( home_dir ) return home_dir;
#if !defined(_WIN32) && !defined(WIN32) && !defined(_WIN32_WCE) \
&& !defined(__RTP__) && !defined(_WRS_KERNEL) && !defined(SQLITE_WASI)
{
struct passwd *pwent;
uid_t uid = getuid();
if( (pwent=getpwuid(uid)) != NULL) {
home_dir = pwent->pw_dir;
}
}
#endif
#if defined(_WIN32_WCE)
/* Windows CE (arm-wince-mingw32ce-gcc) does not provide getenv()
*/
home_dir = "/";
#else
#if defined(_WIN32) || defined(WIN32)
if (!home_dir) {
home_dir = getenv("USERPROFILE");
}
#endif
if (!home_dir) {
home_dir = getenv("HOME");
}
#if defined(_WIN32) || defined(WIN32)
if (!home_dir) {
char *zDrive, *zPath;
int n;
zDrive = getenv("HOMEDRIVE");
zPath = getenv("HOMEPATH");
if( zDrive && zPath ){
n = strlen30(zDrive) + strlen30(zPath) + 1;
home_dir = malloc( n );
if( home_dir==0 ) return 0;
sqlite3_snprintf(n, home_dir, "%s%s", zDrive, zPath);
return home_dir;
}
home_dir = "c:\\";
}
#endif
#endif /* !_WIN32_WCE */
if( home_dir ){
i64 n = strlen(home_dir) + 1;
char *z = malloc( n );
if( z ) memcpy(z, home_dir, n);
home_dir = z;
}
return home_dir;
}
/*
** On non-Windows platforms, look for $XDG_CONFIG_HOME.
** If ${XDG_CONFIG_HOME}/sqlite3/sqliterc is found, return
** the path to it, else return 0. The result is cached for
** subsequent calls.
*/
static const char *find_xdg_config(void){
#if defined(_WIN32) || defined(WIN32) || defined(_WIN32_WCE) \
|| defined(__RTP__) || defined(_WRS_KERNEL)
return 0;
#else
static int alreadyTried = 0;
static char *zConfig = 0;
const char *zXdgHome;
if( alreadyTried!=0 ){
return zConfig;
}
alreadyTried = 1;
zXdgHome = getenv("XDG_CONFIG_HOME");
if( zXdgHome==0 ){
return 0;
}
zConfig = sqlite3_mprintf("%s/sqlite3/sqliterc", zXdgHome);
shell_check_oom(zConfig);
if( access(zConfig,0)!=0 ){
sqlite3_free(zConfig);
zConfig = 0;
}
return zConfig;
#endif
}
/*
** Read input from the file given by sqliterc_override. Or if that
** parameter is NULL, take input from the first of find_xdg_config()
** or ~/.sqliterc which is found.
**
** Returns the number of errors.
*/
static void process_sqliterc(
ShellState *p, /* Configuration data */
const char *sqliterc_override /* Name of config file. NULL to use default */
){
char *home_dir = NULL;
const char *sqliterc = sqliterc_override;
char *zBuf = 0;
FILE *inSaved = p->in;
int savedLineno = p->lineno;
if( sqliterc == NULL ){
sqliterc = find_xdg_config();
}
if( sqliterc == NULL ){
home_dir = find_home_dir(0);
if( home_dir==0 ){
raw_printf(stderr, "-- warning: cannot find home directory;"
" cannot read ~/.sqliterc\n");
return;
}
zBuf = sqlite3_mprintf("%s/.sqliterc",home_dir);
shell_check_oom(zBuf);
sqliterc = zBuf;
}
p->in = fopen(sqliterc,"rb");
if( p->in ){
if( stdin_is_interactive ){
utf8_printf(stderr,"-- Loading resources from %s\n",sqliterc);
}
if( process_input(p) && bail_on_error ) exit(1);
fclose(p->in);
}else if( sqliterc_override!=0 ){
utf8_printf(stderr,"cannot open: \"%s\"\n", sqliterc);
if( bail_on_error ) exit(1);
}
p->in = inSaved;
p->lineno = savedLineno;
sqlite3_free(zBuf);
}
/*
** Show available command line options
*/
static const char zOptions[] =
" -- treat no subsequent arguments as options\n"
#if defined(SQLITE_HAVE_ZLIB) && !defined(SQLITE_OMIT_VIRTUALTABLE)
" -A ARGS... run \".archive ARGS\" and exit\n"
#endif
" -append append the database to the end of the file\n"
" -ascii set output mode to 'ascii'\n"
" -bail stop after hitting an error\n"
" -batch force batch I/O\n"
" -box set output mode to 'box'\n"
" -column set output mode to 'column'\n"
" -cmd COMMAND run \"COMMAND\" before reading stdin\n"
" -csv set output mode to 'csv'\n"
#if !defined(SQLITE_OMIT_DESERIALIZE)
" -deserialize open the database using sqlite3_deserialize()\n"
#endif
" -echo print inputs before execution\n"
" -init FILENAME read/process named file\n"
" -[no]header turn headers on or off\n"
#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
" -heap SIZE Size of heap for memsys3 or memsys5\n"
#endif
" -help show this message\n"
" -html set output mode to HTML\n"
" -interactive force interactive I/O\n"
" -json set output mode to 'json'\n"
" -line set output mode to 'line'\n"
" -list set output mode to 'list'\n"
" -lookaside SIZE N use N entries of SZ bytes for lookaside memory\n"
" -markdown set output mode to 'markdown'\n"
#if !defined(SQLITE_OMIT_DESERIALIZE)
" -maxsize N maximum size for a --deserialize database\n"
#endif
" -memtrace trace all memory allocations and deallocations\n"
" -mmap N default mmap size set to N\n"
#ifdef SQLITE_ENABLE_MULTIPLEX
" -multiplex enable the multiplexor VFS\n"
#endif
" -newline SEP set output row separator. Default: '\\n'\n"
#if SHELL_WIN_UTF8_OPT
" -no-utf8 do not try to set up UTF-8 output (for legacy)\n"
#endif
" -nofollow refuse to open symbolic links to database files\n"
" -nonce STRING set the safe-mode escape nonce\n"
" -nullvalue TEXT set text string for NULL values. Default ''\n"
" -pagecache SIZE N use N slots of SZ bytes each for page cache memory\n"
" -pcachetrace trace all page cache operations\n"
" -quote set output mode to 'quote'\n"
" -readonly open the database read-only\n"
" -safe enable safe-mode\n"
" -separator SEP set output column separator. Default: '|'\n"
#ifdef SQLITE_ENABLE_SORTER_REFERENCES
" -sorterref SIZE sorter references threshold size\n"
#endif
" -stats print memory stats before each finalize\n"
" -table set output mode to 'table'\n"
" -tabs set output mode to 'tabs'\n"
" -unsafe-testing allow unsafe commands and modes for testing\n"
#if SHELL_WIN_UTF8_OPT
" -utf8 setup interactive console code page for UTF-8\n"
#endif
" -version show SQLite version\n"
" -vfs NAME use NAME as the default VFS\n"
#ifdef SQLITE_ENABLE_VFSTRACE
" -vfstrace enable tracing of all VFS calls\n"
#endif
#ifdef SQLITE_HAVE_ZLIB
" -zip open the file as a ZIP Archive\n"
#endif
;
static void usage(int showDetail){
utf8_printf(stderr,
"Usage: %s [OPTIONS] [FILENAME [SQL]]\n"
"FILENAME is the name of an SQLite database. A new database is created\n"
"if the file does not previously exist. Defaults to :memory:.\n", Argv0);
if( showDetail ){
utf8_printf(stderr, "OPTIONS include:\n%s", zOptions);
}else{
raw_printf(stderr, "Use the -help option for additional information\n");
}
exit(1);
}
/*
** Internal check: Verify that the SQLite is uninitialized. Print a
** error message if it is initialized.
*/
static void verify_uninitialized(void){
if( sqlite3_config(-1)==SQLITE_MISUSE ){
utf8_printf(stdout, "WARNING: attempt to configure SQLite after"
" initialization.\n");
}
}
/*
** Initialize the state information in data
*/
static void main_init(ShellState *data) {
memset(data, 0, sizeof(*data));
data->normalMode = data->cMode = data->mode = MODE_List;
data->autoExplain = 1;
data->pAuxDb = &data->aAuxDb[0];
memcpy(data->colSeparator,SEP_Column, 2);
memcpy(data->rowSeparator,SEP_Row, 2);
data->showHeader = 0;
data->shellFlgs = SHFLG_Lookaside;
sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
#if !defined(SQLITE_SHELL_FIDDLE)
verify_uninitialized();
#endif
sqlite3_config(SQLITE_CONFIG_URI, 1);
sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
sqlite3_snprintf(sizeof(mainPrompt), mainPrompt,"sqlite> ");
sqlite3_snprintf(sizeof(continuePrompt), continuePrompt," ...> ");
}
/*
** Output text to the console in a font that attracts extra attention.
*/
#ifdef _WIN32
static void printBold(const char *zText){
#if !SQLITE_OS_WINRT
HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO defaultScreenInfo;
GetConsoleScreenBufferInfo(out, &defaultScreenInfo);
SetConsoleTextAttribute(out,
FOREGROUND_RED|FOREGROUND_INTENSITY
);
#endif
printf("%s", zText);
#if !SQLITE_OS_WINRT
SetConsoleTextAttribute(out, defaultScreenInfo.wAttributes);
#endif
}
#else
static void printBold(const char *zText){
printf("\033[1m%s\033[0m", zText);
}
#endif
/*
** Get the argument to an --option. Throw an error and die if no argument
** is available.
*/
static char *cmdline_option_value(int argc, char **argv, int i){
if( i==argc ){
utf8_printf(stderr, "%s: Error: missing argument to %s\n",
argv[0], argv[argc-1]);
exit(1);
}
return argv[i];
}
static void sayAbnormalExit(void){
if( seenInterrupt ) fprintf(stderr, "Program interrupted.\n");
}
#ifndef SQLITE_SHELL_IS_UTF8
# if (defined(_WIN32) || defined(WIN32)) \
&& (defined(_MSC_VER) || (defined(UNICODE) && defined(__GNUC__)))
# define SQLITE_SHELL_IS_UTF8 (0)
# else
# define SQLITE_SHELL_IS_UTF8 (1)
# endif
#endif
#ifdef SQLITE_SHELL_FIDDLE
# define main fiddle_main
#endif
#if SQLITE_SHELL_IS_UTF8
int SQLITE_CDECL main(int argc, char **argv){
#else
int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
char **argv;
#endif
#ifdef SQLITE_DEBUG
sqlite3_int64 mem_main_enter = 0;
#endif
char *zErrMsg = 0;
#ifdef SQLITE_SHELL_FIDDLE
# define data shellState
#else
ShellState data;
#endif
const char *zInitFile = 0;
int i;
int rc = 0;
int warnInmemoryDb = 0;
int readStdin = 1;
int nCmd = 0;
int nOptsEnd = argc;
char **azCmd = 0;
const char *zVfs = 0; /* Value of -vfs command-line option */
#if !SQLITE_SHELL_IS_UTF8
char **argvToFree = 0;
int argcToFree = 0;
#endif
setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */
#ifdef SQLITE_SHELL_FIDDLE
stdin_is_interactive = 0;
stdout_is_console = 1;
data.wasm.zDefaultDbName = "/fiddle.sqlite3";
#else
stdin_is_interactive = isatty(0);
stdout_is_console = isatty(1);
#endif
#if SHELL_WIN_UTF8_OPT
atexit(console_restore); /* Needs revision for CLI as library call */
#endif
atexit(sayAbnormalExit);
#ifdef SQLITE_DEBUG
mem_main_enter = sqlite3_memory_used();
#endif
#if !defined(_WIN32_WCE)
if( getenv("SQLITE_DEBUG_BREAK") ){
if( isatty(0) && isatty(2) ){
fprintf(stderr,
"attach debugger to process %d and press any key to continue.\n",
GETPID());
fgetc(stdin);
}else{
#if defined(_WIN32) || defined(WIN32)
#if SQLITE_OS_WINRT
__debugbreak();
#else
DebugBreak();
#endif
#elif defined(SIGTRAP)
raise(SIGTRAP);
#endif
}
}
#endif
/* Register a valid signal handler early, before much else is done. */
#ifdef SIGINT
signal(SIGINT, interrupt_handler);
#elif (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE)
if( !SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE) ){
fprintf(stderr, "No ^C handler.\n");
}
#endif
#if USE_SYSTEM_SQLITE+0!=1
if( cli_strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){
utf8_printf(stderr, "SQLite header and source version mismatch\n%s\n%s\n",
sqlite3_sourceid(), SQLITE_SOURCE_ID);
exit(1);
}
#endif
main_init(&data);
/* On Windows, we must translate command-line arguments into UTF-8.
** The SQLite memory allocator subsystem has to be enabled in order to
** do this. But we want to run an sqlite3_shutdown() afterwards so that
** subsequent sqlite3_config() calls will work. So copy all results into
** memory that does not come from the SQLite memory allocator.
*/
#if !SQLITE_SHELL_IS_UTF8
sqlite3_initialize();
argvToFree = malloc(sizeof(argv[0])*argc*2);
shell_check_oom(argvToFree);
argcToFree = argc;
argv = argvToFree + argc;
for(i=0; i<argc; i++){
char *z = sqlite3_win32_unicode_to_utf8(wargv[i]);
i64 n;
shell_check_oom(z);
n = strlen(z);
argv[i] = malloc( n+1 );
shell_check_oom(argv[i]);
memcpy(argv[i], z, n+1);
argvToFree[i] = argv[i];
sqlite3_free(z);
}
sqlite3_shutdown();
#endif
assert( argc>=1 && argv && argv[0] );
Argv0 = argv[0];
#ifdef SQLITE_SHELL_DBNAME_PROC
{
/* If the SQLITE_SHELL_DBNAME_PROC macro is defined, then it is the name
** of a C-function that will provide the name of the database file. Use
** this compile-time option to embed this shell program in larger
** applications. */
extern void SQLITE_SHELL_DBNAME_PROC(const char**);
SQLITE_SHELL_DBNAME_PROC(&data.pAuxDb->zDbFilename);
warnInmemoryDb = 0;
}
#endif
/* Do an initial pass through the command-line argument to locate
** the name of the database file, the name of the initialization file,
** the size of the alternative malloc heap,
** and the first command to execute.
*/
#ifndef SQLITE_SHELL_FIDDLE
verify_uninitialized();
#endif
for(i=1; i<argc; i++){
char *z;
z = argv[i];
if( z[0]!='-' || i>nOptsEnd ){
if( data.aAuxDb->zDbFilename==0 ){
data.aAuxDb->zDbFilename = z;
}else{
/* Excess arguments are interpreted as SQL (or dot-commands) and
** mean that nothing is read from stdin */
readStdin = 0;
nCmd++;
azCmd = realloc(azCmd, sizeof(azCmd[0])*nCmd);
shell_check_oom(azCmd);
azCmd[nCmd-1] = z;
}
continue;
}
if( z[1]=='-' ) z++;
if( cli_strcmp(z, "-")==0 ){
nOptsEnd = i;
continue;
}else if( cli_strcmp(z,"-separator")==0
|| cli_strcmp(z,"-nullvalue")==0
|| cli_strcmp(z,"-newline")==0
|| cli_strcmp(z,"-cmd")==0
){
(void)cmdline_option_value(argc, argv, ++i);
}else if( cli_strcmp(z,"-init")==0 ){
zInitFile = cmdline_option_value(argc, argv, ++i);
}else if( cli_strcmp(z,"-batch")==0 ){
/* Need to check for batch mode here to so we can avoid printing
** informational messages (like from process_sqliterc) before
** we do the actual processing of arguments later in a second pass.
*/
stdin_is_interactive = 0;
}else if( cli_strcmp(z,"-heap")==0 ){
#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
const char *zSize;
sqlite3_int64 szHeap;
zSize = cmdline_option_value(argc, argv, ++i);
szHeap = integerValue(zSize);
if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
verify_uninitialized();
sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
#else
(void)cmdline_option_value(argc, argv, ++i);
#endif
}else if( cli_strcmp(z,"-pagecache")==0 ){
sqlite3_int64 n, sz;
sz = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>70000 ) sz = 70000;
if( sz<0 ) sz = 0;
n = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>0 && n>0 && 0xffffffffffffLL/sz<n ){
n = 0xffffffffffffLL/sz;
}
verify_uninitialized();
sqlite3_config(SQLITE_CONFIG_PAGECACHE,
(n>0 && sz>0) ? malloc(n*sz) : 0, sz, n);
data.shellFlgs |= SHFLG_Pagecache;
}else if( cli_strcmp(z,"-lookaside")==0 ){
int n, sz;
sz = (int)integerValue(cmdline_option_value(argc,argv,++i));
if( sz<0 ) sz = 0;
n = (int)integerValue(cmdline_option_value(argc,argv,++i));
if( n<0 ) n = 0;
verify_uninitialized();
sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, n);
if( sz*n==0 ) data.shellFlgs &= ~SHFLG_Lookaside;
}else if( cli_strcmp(z,"-threadsafe")==0 ){
int n;
n = (int)integerValue(cmdline_option_value(argc,argv,++i));
verify_uninitialized();
switch( n ){
case 0: sqlite3_config(SQLITE_CONFIG_SINGLETHREAD); break;
case 2: sqlite3_config(SQLITE_CONFIG_MULTITHREAD); break;
default: sqlite3_config(SQLITE_CONFIG_SERIALIZED); break;
}
#ifdef SQLITE_ENABLE_VFSTRACE
}else if( cli_strcmp(z,"-vfstrace")==0 ){
extern int vfstrace_register(
const char *zTraceName,
const char *zOldVfsName,
int (*xOut)(const char*,void*),
void *pOutArg,
int makeDefault
);
vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1);
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
}else if( cli_strcmp(z,"-multiplex")==0 ){
extern int sqlite3_multiplex_initialize(const char*,int);
sqlite3_multiplex_initialize(0, 1);
#endif
}else if( cli_strcmp(z,"-mmap")==0 ){
sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i));
verify_uninitialized();
sqlite3_config(SQLITE_CONFIG_MMAP_SIZE, sz, sz);
#if defined(SQLITE_ENABLE_SORTER_REFERENCES)
}else if( cli_strcmp(z,"-sorterref")==0 ){
sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i));
verify_uninitialized();
sqlite3_config(SQLITE_CONFIG_SORTERREF_SIZE, (int)sz);
#endif
}else if( cli_strcmp(z,"-vfs")==0 ){
zVfs = cmdline_option_value(argc, argv, ++i);
#ifdef SQLITE_HAVE_ZLIB
}else if( cli_strcmp(z,"-zip")==0 ){
data.openMode = SHELL_OPEN_ZIPFILE;
#endif
}else if( cli_strcmp(z,"-append")==0 ){
data.openMode = SHELL_OPEN_APPENDVFS;
#ifndef SQLITE_OMIT_DESERIALIZE
}else if( cli_strcmp(z,"-deserialize")==0 ){
data.openMode = SHELL_OPEN_DESERIALIZE;
}else if( cli_strcmp(z,"-maxsize")==0 && i+1<argc ){
data.szMax = integerValue(argv[++i]);
#endif
}else if( cli_strcmp(z,"-readonly")==0 ){
data.openMode = SHELL_OPEN_READONLY;
}else if( cli_strcmp(z,"-nofollow")==0 ){
data.openFlags = SQLITE_OPEN_NOFOLLOW;
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
}else if( cli_strncmp(z, "-A",2)==0 ){
/* All remaining command-line arguments are passed to the ".archive"
** command, so ignore them */
break;
#endif
}else if( cli_strcmp(z, "-memtrace")==0 ){
sqlite3MemTraceActivate(stderr);
}else if( cli_strcmp(z, "-pcachetrace")==0 ){
sqlite3PcacheTraceActivate(stderr);
}else if( cli_strcmp(z,"-bail")==0 ){
bail_on_error = 1;
}else if( cli_strcmp(z,"-nonce")==0 ){
free(data.zNonce);
data.zNonce = strdup(cmdline_option_value(argc, argv, ++i));
}else if( cli_strcmp(z,"-unsafe-testing")==0 ){
ShellSetFlag(&data,SHFLG_TestingMode);
}else if( cli_strcmp(z,"-safe")==0 ){
/* no-op - catch this on the second pass */
}
}
#ifndef SQLITE_SHELL_FIDDLE
verify_uninitialized();
#endif
#ifdef SQLITE_SHELL_INIT_PROC
{
/* If the SQLITE_SHELL_INIT_PROC macro is defined, then it is the name
** of a C-function that will perform initialization actions on SQLite that
** occur just before or after sqlite3_initialize(). Use this compile-time
** option to embed this shell program in larger applications. */
extern void SQLITE_SHELL_INIT_PROC(void);
SQLITE_SHELL_INIT_PROC();
}
#else
/* All the sqlite3_config() calls have now been made. So it is safe
** to call sqlite3_initialize() and process any command line -vfs option. */
sqlite3_initialize();
#endif
if( zVfs ){
sqlite3_vfs *pVfs = sqlite3_vfs_find(zVfs);
if( pVfs ){
sqlite3_vfs_register(pVfs, 1);
}else{
utf8_printf(stderr, "no such VFS: \"%s\"\n", zVfs);
exit(1);
}
}
if( data.pAuxDb->zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
data.pAuxDb->zDbFilename = ":memory:";
warnInmemoryDb = argc==1;
#else
utf8_printf(stderr,"%s: Error: no database filename specified\n", Argv0);
return 1;
#endif
}
data.out = stdout;
#ifndef SQLITE_SHELL_FIDDLE
sqlite3_appendvfs_init(0,0,0);
#endif
/* Go ahead and open the database file if it already exists. If the
** file does not exist, delay opening it. This prevents empty database
** files from being created if a user mistypes the database name argument
** to the sqlite command-line tool.
*/
if( access(data.pAuxDb->zDbFilename, 0)==0 ){
open_db(&data, 0);
}
/* Process the initialization file if there is one. If no -init option
** is given on the command line, look for a file named ~/.sqliterc and
** try to process it.
*/
process_sqliterc(&data,zInitFile);
/* Make a second pass through the command-line argument and set
** options. This second pass is delayed until after the initialization
** file is processed so that the command-line arguments will override
** settings in the initialization file.
*/
for(i=1; i<argc; i++){
char *z = argv[i];
if( z[0]!='-' || i>=nOptsEnd ) continue;
if( z[1]=='-' ){ z++; }
if( cli_strcmp(z,"-init")==0 ){
i++;
}else if( cli_strcmp(z,"-html")==0 ){
data.mode = MODE_Html;
}else if( cli_strcmp(z,"-list")==0 ){
data.mode = MODE_List;
}else if( cli_strcmp(z,"-quote")==0 ){
data.mode = MODE_Quote;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Comma);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Row);
}else if( cli_strcmp(z,"-line")==0 ){
data.mode = MODE_Line;
}else if( cli_strcmp(z,"-column")==0 ){
data.mode = MODE_Column;
}else if( cli_strcmp(z,"-json")==0 ){
data.mode = MODE_Json;
}else if( cli_strcmp(z,"-markdown")==0 ){
data.mode = MODE_Markdown;
}else if( cli_strcmp(z,"-table")==0 ){
data.mode = MODE_Table;
}else if( cli_strcmp(z,"-box")==0 ){
data.mode = MODE_Box;
}else if( cli_strcmp(z,"-csv")==0 ){
data.mode = MODE_Csv;
memcpy(data.colSeparator,",",2);
#ifdef SQLITE_HAVE_ZLIB
}else if( cli_strcmp(z,"-zip")==0 ){
data.openMode = SHELL_OPEN_ZIPFILE;
#endif
}else if( cli_strcmp(z,"-append")==0 ){
data.openMode = SHELL_OPEN_APPENDVFS;
#ifndef SQLITE_OMIT_DESERIALIZE
}else if( cli_strcmp(z,"-deserialize")==0 ){
data.openMode = SHELL_OPEN_DESERIALIZE;
}else if( cli_strcmp(z,"-maxsize")==0 && i+1<argc ){
data.szMax = integerValue(argv[++i]);
#endif
}else if( cli_strcmp(z,"-readonly")==0 ){
data.openMode = SHELL_OPEN_READONLY;
}else if( cli_strcmp(z,"-nofollow")==0 ){
data.openFlags |= SQLITE_OPEN_NOFOLLOW;
}else if( cli_strcmp(z,"-ascii")==0 ){
data.mode = MODE_Ascii;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,SEP_Unit);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,SEP_Record);
}else if( cli_strcmp(z,"-tabs")==0 ){
data.mode = MODE_List;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,SEP_Tab);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,SEP_Row);
}else if( cli_strcmp(z,"-separator")==0 ){
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
"%s",cmdline_option_value(argc,argv,++i));
}else if( cli_strcmp(z,"-newline")==0 ){
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
"%s",cmdline_option_value(argc,argv,++i));
}else if( cli_strcmp(z,"-nullvalue")==0 ){
sqlite3_snprintf(sizeof(data.nullValue), data.nullValue,
"%s",cmdline_option_value(argc,argv,++i));
}else if( cli_strcmp(z,"-header")==0 ){
data.showHeader = 1;
ShellSetFlag(&data, SHFLG_HeaderSet);
}else if( cli_strcmp(z,"-noheader")==0 ){
data.showHeader = 0;
ShellSetFlag(&data, SHFLG_HeaderSet);
}else if( cli_strcmp(z,"-echo")==0 ){
ShellSetFlag(&data, SHFLG_Echo);
}else if( cli_strcmp(z,"-eqp")==0 ){
data.autoEQP = AUTOEQP_on;
}else if( cli_strcmp(z,"-eqpfull")==0 ){
data.autoEQP = AUTOEQP_full;
}else if( cli_strcmp(z,"-stats")==0 ){
data.statsOn = 1;
}else if( cli_strcmp(z,"-scanstats")==0 ){
data.scanstatsOn = 1;
}else if( cli_strcmp(z,"-backslash")==0 ){
/* Undocumented command-line option: -backslash
** Causes C-style backslash escapes to be evaluated in SQL statements
** prior to sending the SQL into SQLite. Useful for injecting
** crazy bytes in the middle of SQL statements for testing and debugging.
*/
ShellSetFlag(&data, SHFLG_Backslash);
}else if( cli_strcmp(z,"-bail")==0 ){
/* No-op. The bail_on_error flag should already be set. */
}else if( cli_strcmp(z,"-version")==0 ){
printf("%s %s (%d-bit)\n", sqlite3_libversion(), sqlite3_sourceid(),
8*(int)sizeof(char*));
return 0;
}else if( cli_strcmp(z,"-interactive")==0 ){
stdin_is_interactive = 1;
}else if( cli_strcmp(z,"-batch")==0 ){
stdin_is_interactive = 0;
}else if( cli_strcmp(z,"-utf8")==0 ){
#if SHELL_WIN_UTF8_OPT
console_utf8 = 1;
#endif /* SHELL_WIN_UTF8_OPT */
}else if( cli_strcmp(z,"-no-utf8")==0 ){
#if SHELL_WIN_UTF8_OPT
console_utf8 = 0;
#endif /* SHELL_WIN_UTF8_OPT */
}else if( cli_strcmp(z,"-heap")==0 ){
i++;
}else if( cli_strcmp(z,"-pagecache")==0 ){
i+=2;
}else if( cli_strcmp(z,"-lookaside")==0 ){
i+=2;
}else if( cli_strcmp(z,"-threadsafe")==0 ){
i+=2;
}else if( cli_strcmp(z,"-nonce")==0 ){
i += 2;
}else if( cli_strcmp(z,"-mmap")==0 ){
i++;
}else if( cli_strcmp(z,"-memtrace")==0 ){
i++;
}else if( cli_strcmp(z,"-pcachetrace")==0 ){
i++;
#ifdef SQLITE_ENABLE_SORTER_REFERENCES
}else if( cli_strcmp(z,"-sorterref")==0 ){
i++;
#endif
}else if( cli_strcmp(z,"-vfs")==0 ){
i++;
#ifdef SQLITE_ENABLE_VFSTRACE
}else if( cli_strcmp(z,"-vfstrace")==0 ){
i++;
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
}else if( cli_strcmp(z,"-multiplex")==0 ){
i++;
#endif
}else if( cli_strcmp(z,"-help")==0 ){
usage(1);
}else if( cli_strcmp(z,"-cmd")==0 ){
/* Run commands that follow -cmd first and separately from commands
** that simply appear on the command-line. This seems goofy. It would
** be better if all commands ran in the order that they appear. But
** we retain the goofy behavior for historical compatibility. */
if( i==argc-1 ) break;
z = cmdline_option_value(argc,argv,++i);
if( z[0]=='.' ){
rc = do_meta_command(z, &data);
if( rc && bail_on_error ) return rc==2 ? 0 : rc;
}else{
open_db(&data, 0);
rc = shell_exec(&data, z, &zErrMsg);
if( zErrMsg!=0 ){
utf8_printf(stderr,"Error: %s\n", zErrMsg);
if( bail_on_error ) return rc!=0 ? rc : 1;
}else if( rc!=0 ){
utf8_printf(stderr,"Error: unable to process SQL \"%s\"\n", z);
if( bail_on_error ) return rc;
}
}
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
}else if( cli_strncmp(z, "-A", 2)==0 ){
if( nCmd>0 ){
utf8_printf(stderr, "Error: cannot mix regular SQL or dot-commands"
" with \"%s\"\n", z);
return 1;
}
open_db(&data, OPEN_DB_ZIPFILE);
if( z[2] ){
argv[i] = &z[2];
arDotCommand(&data, 1, argv+(i-1), argc-(i-1));
}else{
arDotCommand(&data, 1, argv+i, argc-i);
}
readStdin = 0;
break;
#endif
}else if( cli_strcmp(z,"-safe")==0 ){
data.bSafeMode = data.bSafeModePersist = 1;
}else if( cli_strcmp(z,"-unsafe-testing")==0 ){
/* Acted upon in first pass. */
}else{
utf8_printf(stderr,"%s: Error: unknown option: %s\n", Argv0, z);
raw_printf(stderr,"Use -help for a list of options.\n");
return 1;
}
data.cMode = data.mode;
}
#if SHELL_WIN_UTF8_OPT
if( console_utf8 && stdin_is_interactive ){
console_prepare();
}else{
setBinaryMode(stdin, 0);
console_utf8 = 0;
}
#endif
if( !readStdin ){
/* Run all arguments that do not begin with '-' as if they were separate
** command-line inputs, except for the argToSkip argument which contains
** the database filename.
*/
for(i=0; i<nCmd; i++){
if( azCmd[i][0]=='.' ){
rc = do_meta_command(azCmd[i], &data);
if( rc ){
free(azCmd);
return rc==2 ? 0 : rc;
}
}else{
open_db(&data, 0);
echo_group_input(&data, azCmd[i]);
rc = shell_exec(&data, azCmd[i], &zErrMsg);
if( zErrMsg || rc ){
if( zErrMsg!=0 ){
utf8_printf(stderr,"Error: %s\n", zErrMsg);
}else{
utf8_printf(stderr,"Error: unable to process SQL: %s\n", azCmd[i]);
}
sqlite3_free(zErrMsg);
free(azCmd);
return rc!=0 ? rc : 1;
}
}
}
}else{
/* Run commands received from standard input
*/
if( stdin_is_interactive ){
char *zHome;
char *zHistory;
const char *zCharset = "";
int nHistory;
#if SHELL_WIN_UTF8_OPT
if( console_utf8 ) zCharset = " (utf8)";
#endif
printf(
"SQLite version %s %.19s%s\n" /*extra-version-info*/
"Enter \".help\" for usage hints.\n",
sqlite3_libversion(), sqlite3_sourceid(), zCharset
);
if( warnInmemoryDb ){
printf("Connected to a ");
printBold("transient in-memory database");
printf(".\nUse \".open FILENAME\" to reopen on a "
"persistent database.\n");
}
zHistory = getenv("SQLITE_HISTORY");
if( zHistory ){
zHistory = strdup(zHistory);
}else if( (zHome = find_home_dir(0))!=0 ){
nHistory = strlen30(zHome) + 20;
if( (zHistory = malloc(nHistory))!=0 ){
sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
}
}
if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE
rl_attempted_completion_function = readline_completion;
#elif HAVE_LINENOISE
linenoiseSetCompletionCallback(linenoise_completion);
#endif
data.in = 0;
rc = process_input(&data);
if( zHistory ){
shell_stifle_history(2000);
shell_write_history(zHistory);
free(zHistory);
}
}else{
data.in = stdin;
rc = process_input(&data);
}
}
#ifndef SQLITE_SHELL_FIDDLE
/* In WASM mode we have to leave the db state in place so that
** client code can "push" SQL into it after this call returns. */
free(azCmd);
set_table_name(&data, 0);
if( data.db ){
session_close_all(&data, -1);
close_db(data.db);
}
for(i=0; i<ArraySize(data.aAuxDb); i++){
sqlite3_free(data.aAuxDb[i].zFreeOnClose);
if( data.aAuxDb[i].db ){
session_close_all(&data, i);
close_db(data.aAuxDb[i].db);
}
}
find_home_dir(1);
output_reset(&data);
data.doXdgOpen = 0;
clearTempFile(&data);
#if !SQLITE_SHELL_IS_UTF8
for(i=0; i<argcToFree; i++) free(argvToFree[i]);
free(argvToFree);
#endif
free(data.colWidth);
free(data.zNonce);
/* Clear the global data structure so that valgrind will detect memory
** leaks */
memset(&data, 0, sizeof(data));
#ifdef SQLITE_DEBUG
if( sqlite3_memory_used()>mem_main_enter ){
utf8_printf(stderr, "Memory leaked: %u bytes\n",
(unsigned int)(sqlite3_memory_used()-mem_main_enter));
}
#endif
#endif /* !SQLITE_SHELL_FIDDLE */
return rc;
}
#ifdef SQLITE_SHELL_FIDDLE
/* Only for emcc experimentation purposes. */
int fiddle_experiment(int a,int b){
return a + b;
}
/*
** Returns a pointer to the current DB handle.
*/
sqlite3 * fiddle_db_handle(){
return globalDb;
}
/*
** Returns a pointer to the given DB name's VFS. If zDbName is 0 then
** "main" is assumed. Returns 0 if no db with the given name is
** open.
*/
sqlite3_vfs * fiddle_db_vfs(const char *zDbName){
sqlite3_vfs * pVfs = 0;
if(globalDb){
sqlite3_file_control(globalDb, zDbName ? zDbName : "main",
SQLITE_FCNTL_VFS_POINTER, &pVfs);
}
return pVfs;
}
/* Only for emcc experimentation purposes. */
sqlite3 * fiddle_db_arg(sqlite3 *arg){
printf("fiddle_db_arg(%p)\n", (const void*)arg);
return arg;
}
/*
** Intended to be called via a SharedWorker() while a separate
** SharedWorker() (which manages the wasm module) is performing work
** which should be interrupted. Unfortunately, SharedWorker is not
** portable enough to make real use of.
*/
void fiddle_interrupt(void){
if( globalDb ) sqlite3_interrupt(globalDb);
}
/*
** Returns the filename of the given db name, assuming "main" if
** zDbName is NULL. Returns NULL if globalDb is not opened.
*/
const char * fiddle_db_filename(const char * zDbName){
return globalDb
? sqlite3_db_filename(globalDb, zDbName ? zDbName : "main")
: NULL;
}
/*
** Completely wipes out the contents of the currently-opened database
** but leaves its storage intact for reuse.
*/
void fiddle_reset_db(void){
if( globalDb ){
int rc = sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 1, 0);
if( 0==rc ) rc = sqlite3_exec(globalDb, "VACUUM", 0, 0, 0);
sqlite3_db_config(globalDb, SQLITE_DBCONFIG_RESET_DATABASE, 0, 0);
}
}
/*
** Uses the current database's VFS xRead to stream the db file's
** contents out to the given callback. The callback gets a single
** chunk of size n (its 2nd argument) on each call and must return 0
** on success, non-0 on error. This function returns 0 on success,
** SQLITE_NOTFOUND if no db is open, or propagates any other non-0
** code from the callback. Note that this is not thread-friendly: it
** expects that it will be the only thread reading the db file and
** takes no measures to ensure that is the case.
*/
int fiddle_export_db( int (*xCallback)(unsigned const char *zOut, int n) ){
sqlite3_int64 nSize = 0;
sqlite3_int64 nPos = 0;
sqlite3_file * pFile = 0;
unsigned char buf[1024 * 8];
int nBuf = (int)sizeof(buf);
int rc = shellState.db
? sqlite3_file_control(shellState.db, "main",
SQLITE_FCNTL_FILE_POINTER, &pFile)
: SQLITE_NOTFOUND;
if( rc ) return rc;
rc = pFile->pMethods->xFileSize(pFile, &nSize);
if( rc ) return rc;
if(nSize % nBuf){
/* DB size is not an even multiple of the buffer size. Reduce
** buffer size so that we do not unduly inflate the db size when
** exporting. */
if(0 == nSize % 4096) nBuf = 4096;
else if(0 == nSize % 2048) nBuf = 2048;
else if(0 == nSize % 1024) nBuf = 1024;
else nBuf = 512;
}
for( ; 0==rc && nPos<nSize; nPos += nBuf ){
rc = pFile->pMethods->xRead(pFile, buf, nBuf, nPos);
if(SQLITE_IOERR_SHORT_READ == rc){
rc = (nPos + nBuf) < nSize ? rc : 0/*assume EOF*/;
}
if( 0==rc ) rc = xCallback(buf, nBuf);
}
return rc;
}
/*
** Trivial exportable function for emscripten. It processes zSql as if
** it were input to the sqlite3 shell and redirects all output to the
** wasm binding. fiddle_main() must have been called before this
** is called, or results are undefined.
*/
void fiddle_exec(const char * zSql){
if(zSql && *zSql){
if('.'==*zSql) puts(zSql);
shellState.wasm.zInput = zSql;
shellState.wasm.zPos = zSql;
process_input(&shellState);
shellState.wasm.zInput = shellState.wasm.zPos = 0;
}
}
#endif /* SQLITE_SHELL_FIDDLE */