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chromium / external / github.com / Cyan4973 / xxHash / refs/tags/v0.8.0 / . / xxhsum.c
blob: 565eb998160f66e137374e0d3c39038f9c4d96bc [file] [log] [blame]
/*
* xxhsum - Command line interface for xxhash algorithms
* Copyright (C) 2013-2020 Yann Collet
*
* GPL v2 License
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* You can contact the author at:
* - xxHash homepage: https://www.xxhash.com
* - xxHash source repository: https://github.com/Cyan4973/xxHash
*/
/*
* xxhsum:
* Provides hash value of a file content, or a list of files, or stdin
* Display convention is Big Endian, for both 32 and 64 bits algorithms
*/
/* ************************************
* Compiler Options
**************************************/
/* MS Visual */
#if defined(_MSC_VER) || defined(_WIN32)
# ifndef _CRT_SECURE_NO_WARNINGS
# define _CRT_SECURE_NO_WARNINGS /* removes visual warnings */
# endif
#endif
/* Under Linux at least, pull in the *64 commands */
#ifndef _LARGEFILE64_SOURCE
# define _LARGEFILE64_SOURCE
#endif
/* ************************************
* Includes
**************************************/
#include <limits.h>
#include <stdlib.h> /* malloc, calloc, free, exit */
#include <string.h> /* strcmp, memcpy */
#include <stdio.h> /* fprintf, fopen, ftello64, fread, stdin, stdout, _fileno (when present) */
#include <sys/types.h> /* stat, stat64, _stat64 */
#include <sys/stat.h> /* stat, stat64, _stat64 */
#include <time.h> /* clock_t, clock, CLOCKS_PER_SEC */
#include <assert.h> /* assert */
#include <errno.h> /* errno */
#define XXH_STATIC_LINKING_ONLY /* *_state_t */
#include "xxhash.h"
#ifdef XXHSUM_DISPATCH
# include "xxh_x86dispatch.h"
#endif
/* ************************************
* OS-Specific Includes
**************************************/
#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) /* UNIX-like OS */ \
|| defined(__midipix__) || defined(__VMS))
# if (defined(__APPLE__) && defined(__MACH__)) || defined(__SVR4) || defined(_AIX) || defined(__hpux) /* POSIX.1-2001 (SUSv3) conformant */ \
|| defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* BSD distros */
# define PLATFORM_POSIX_VERSION 200112L
# else
# if defined(__linux__) || defined(__linux)
# ifndef _POSIX_C_SOURCE
# define _POSIX_C_SOURCE 200112L /* use feature test macro */
# endif
# endif
# include <unistd.h> /* declares _POSIX_VERSION */
# if defined(_POSIX_VERSION) /* POSIX compliant */
# define PLATFORM_POSIX_VERSION _POSIX_VERSION
# else
# define PLATFORM_POSIX_VERSION 0
# endif
# endif
#endif
#if !defined(PLATFORM_POSIX_VERSION)
# define PLATFORM_POSIX_VERSION -1
#endif
#if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) \
|| (PLATFORM_POSIX_VERSION >= 200112L) \
|| defined(__DJGPP__) \
|| defined(__MSYS__)
# include <unistd.h> /* isatty */
# define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
#elif defined(MSDOS) || defined(OS2)
# include <io.h> /* _isatty */
# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
#elif defined(WIN32) || defined(_WIN32)
# include <io.h> /* _isatty */
# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
# include <stdio.h> /* FILE */
static __inline int IS_CONSOLE(FILE* stdStream) {
DWORD dummy;
return _isatty(_fileno(stdStream)) && GetConsoleMode((HANDLE)_get_osfhandle(_fileno(stdStream)), &dummy);
}
#else
# define IS_CONSOLE(stdStream) 0
#endif
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32)
# include <fcntl.h> /* _O_BINARY */
# include <io.h> /* _setmode, _fileno, _get_osfhandle */
# if !defined(__DJGPP__)
# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
# include <winioctl.h> /* FSCTL_SET_SPARSE */
# define SET_BINARY_MODE(file) { int const unused=_setmode(_fileno(file), _O_BINARY); (void)unused; }
# else
# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
# endif
#else
# define SET_BINARY_MODE(file)
#endif
#if !defined(S_ISREG)
# define S_ISREG(x) (((x) & S_IFMT) == S_IFREG)
#endif
/* Unicode helpers for Windows to make UTF-8 act as it should. */
#ifdef _WIN32
/*
* Converts a UTF-8 string to UTF-16. Acts like strdup. The string must be freed afterwards.
* This version allows keeping the output length.
*/
static wchar_t* utf8_to_utf16_len(const char* str, int* lenOut)
{
int const len = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0);
if (lenOut != NULL) *lenOut = len;
if (len == 0) return NULL;
{ wchar_t* buf = (wchar_t*)malloc((size_t)len * sizeof(wchar_t));
if (buf != NULL) {
if (MultiByteToWideChar(CP_UTF8, 0, str, -1, buf, len) == 0) {
free(buf);
return NULL;
} }
return buf;
}
}
/* Converts a UTF-8 string to UTF-16. Acts like strdup. The string must be freed afterwards. */
static wchar_t* utf8_to_utf16(const char *str)
{
return utf8_to_utf16_len(str, NULL);
}
/*
* Converts a UTF-16 string to UTF-8. Acts like strdup. The string must be freed afterwards.
* This version allows keeping the output length.
*/
static char* utf16_to_utf8_len(const wchar_t *str, int *lenOut)
{
int len = WideCharToMultiByte(CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
if (lenOut != NULL) *lenOut = len;
if (len == 0) return NULL;
{ char* const buf = (char*)malloc((size_t)len * sizeof(char));
if (buf != NULL) {
if (WideCharToMultiByte(CP_UTF8, 0, str, -1, buf, len, NULL, NULL) == 0) {
free(buf);
return NULL;
} }
return buf;
}
}
/* Converts a UTF-16 string to UTF-8. Acts like strdup. The string must be freed afterwards. */
static char *utf16_to_utf8(const wchar_t *str)
{
return utf16_to_utf8_len(str, NULL);
}
/*
* fopen wrapper that supports UTF-8
*
* fopen will only accept ANSI filenames, which means that we can't open Unicode filenames.
*
* In order to open a Unicode filename, we need to convert filenames to UTF-16 and use _wfopen.
*/
static FILE* XXH_fopen_wrapped(const char *filename, const wchar_t *mode)
{
wchar_t* const wide_filename = utf8_to_utf16(filename);
if (wide_filename == NULL) return NULL;
{ FILE* const f = _wfopen(wide_filename, mode);
free(wide_filename);
return f;
}
}
/*
* In case it isn't available, this is what MSVC 2019 defines in stdarg.h.
*/
#if defined(_MSC_VER) && !defined(__clang__) && !defined(va_copy)
# define va_copy(destination, source) ((destination) = (source))
#endif
/*
* fprintf wrapper that supports UTF-8.
*
* fprintf doesn't properly handle Unicode on Windows.
*
* Additionally, it is codepage sensitive on console and may crash the program.
*
* Instead, we use vsnprintf, and either print with fwrite or convert to UTF-16
* for console output and use the codepage-independent WriteConsoleW.
*
* Credit to t-mat: https://github.com/t-mat/xxHash/commit/5691423
*/
static int fprintf_utf8(FILE *stream, const char *format, ...)
{
int result;
va_list args;
va_list copy;
va_start(args, format);
/*
* To be safe, make a va_copy.
*
* Note that Microsoft doesn't use va_copy in its sample code:
* https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/vsprintf-vsprintf-l-vswprintf-vswprintf-l-vswprintf-l?view=vs-2019
*/
va_copy(copy, args);
/* Counts the number of characters needed for vsnprintf. */
result = _vscprintf(format, copy);
va_end(copy);
if (result > 0) {
/* Create a buffer for vsnprintf */
const size_t nchar = (size_t)result + 1;
char* u8_str = (char*)malloc(nchar * sizeof(u8_str[0]));
if (u8_str == NULL) {
result = -1;
} else {
/* Generate the UTF-8 string with vsnprintf. */
result = _vsnprintf(u8_str, nchar - 1, format, args);
u8_str[nchar - 1] = '\0';
if (result > 0) {
/*
* Check if we are outputting to a console. Don't use IS_CONSOLE
* directly -- we don't need to call _get_osfhandle twice.
*/
int fileNb = _fileno(stream);
intptr_t handle_raw = _get_osfhandle(fileNb);
HANDLE handle = (HANDLE)handle_raw;
DWORD dwTemp;
if (handle_raw < 0) {
result = -1;
} else if (_isatty(fileNb) && GetConsoleMode(handle, &dwTemp)) {
/*
* Convert to UTF-16 and output with WriteConsoleW.
*
* This is codepage independent and works on Windows XP's
* default msvcrt.dll.
*/
int len;
wchar_t *const u16_buf = utf8_to_utf16_len(u8_str, &len);
if (u16_buf == NULL) {
result = -1;
} else {
if (WriteConsoleW(handle, u16_buf, (DWORD)len - 1, &dwTemp, NULL)) {
result = (int)dwTemp;
} else {
result = -1;
}
free(u16_buf);
}
} else {
/* fwrite the UTF-8 string if we are printing to a file */
result = (int)fwrite(u8_str, 1, nchar - 1, stream);
if (result == 0) {
result = -1;
}
}
}
free(u8_str);
}
}
va_end(args);
return result;
}
/*
* Since we always use literals in the "mode" argument, it is just easier to append "L" to
* the string to make it UTF-16 and avoid the hassle of a second manual conversion.
*/
# define XXH_fopen(filename, mode) XXH_fopen_wrapped(filename, L##mode)
#else
# define XXH_fopen(filename, mode) fopen(filename, mode)
#endif
/* ************************************
* Basic Types
**************************************/
#if defined(__cplusplus) /* C++ */ \
|| (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) /* C99 */
# include <stdint.h>
typedef uint8_t U8;
typedef uint32_t U32;
typedef uint64_t U64;
# else
# include <limits.h>
typedef unsigned char U8;
# if UINT_MAX == 0xFFFFFFFFUL
typedef unsigned int U32;
# else
typedef unsigned long U32;
# endif
typedef unsigned long long U64;
#endif /* not C++/C99 */
static unsigned BMK_isLittleEndian(void)
{
const union { U32 u; U8 c[4]; } one = { 1 }; /* don't use static: performance detrimental */
return one.c[0];
}
/* *************************************
* Constants
***************************************/
#define LIB_VERSION XXH_VERSION_MAJOR.XXH_VERSION_MINOR.XXH_VERSION_RELEASE
#define QUOTE(str) #str
#define EXPAND_AND_QUOTE(str) QUOTE(str)
#define PROGRAM_VERSION EXPAND_AND_QUOTE(LIB_VERSION)
/* Show compiler versions in WELCOME_MESSAGE. CC_VERSION_FMT will return the printf specifiers,
* and VERSION will contain the comma separated list of arguments to the CC_VERSION_FMT string. */
#if defined(__clang_version__)
/* Clang does its own thing. */
# ifdef __apple_build_version__
# define CC_VERSION_FMT "Apple Clang %s"
# else
# define CC_VERSION_FMT "Clang %s"
# endif
# define CC_VERSION __clang_version__
#elif defined(__VERSION__)
/* GCC and ICC */
# define CC_VERSION_FMT "%s"
# ifdef __INTEL_COMPILER /* icc adds its prefix */
# define CC_VERSION __VERSION__
# else /* assume GCC */
# define CC_VERSION "GCC " __VERSION__
# endif
#elif defined(_MSC_FULL_VER) && defined(_MSC_BUILD)
/*
* MSVC
* "For example, if the version number of the Visual C++ compiler is
* 15.00.20706.01, the _MSC_FULL_VER macro evaluates to 150020706."
*
* https://docs.microsoft.com/en-us/cpp/preprocessor/predefined-macros?view=vs-2017
*/
# define CC_VERSION_FMT "MSVC %02i.%02i.%05i.%02i"
# define CC_VERSION _MSC_FULL_VER / 10000000 % 100, _MSC_FULL_VER / 100000 % 100, _MSC_FULL_VER % 100000, _MSC_BUILD
#elif defined(__TINYC__)
/* tcc stores its version in the __TINYC__ macro. */
# define CC_VERSION_FMT "tcc %i.%i.%i"
# define CC_VERSION __TINYC__ / 10000 % 100, __TINYC__ / 100 % 100, __TINYC__ % 100
#else
# define CC_VERSION_FMT "%s"
# define CC_VERSION "unknown compiler"
#endif
/* makes the next part easier */
#if defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
# define ARCH_X64 1
# define ARCH_X86 "x86_64"
#elif defined(__i386__) || defined(_M_IX86) || defined(_M_IX86_FP)
# define ARCH_X86 "i386"
#endif
/* Try to detect the architecture. */
#if defined(ARCH_X86)
# if defined(XXHSUM_DISPATCH)
# define ARCH ARCH_X86 " autoVec"
# elif defined(__AVX512F__)
# define ARCH ARCH_X86 " + AVX512"
# elif defined(__AVX2__)
# define ARCH ARCH_X86 " + AVX2"
# elif defined(__AVX__)
# define ARCH ARCH_X86 " + AVX"
# elif defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__) \
|| defined(__SSE2__) || (defined(_M_IX86_FP) && _M_IX86_FP == 2)
# define ARCH ARCH_X86 " + SSE2"
# else
# define ARCH ARCH_X86
# endif
#elif defined(__aarch64__) || defined(__arm64__) || defined(_M_ARM64)
# define ARCH "aarch64 + NEON"
#elif defined(__arm__) || defined(__thumb__) || defined(__thumb2__) || defined(_M_ARM)
/* ARM has a lot of different features that can change xxHash significantly. */
# if defined(__thumb2__) || (defined(__thumb__) && (__thumb__ == 2 || __ARM_ARCH >= 7))
# define ARCH_THUMB " Thumb-2"
# elif defined(__thumb__)
# define ARCH_THUMB " Thumb-1"
# else
# define ARCH_THUMB ""
# endif
/* ARMv7 has unaligned by default */
# if defined(__ARM_FEATURE_UNALIGNED) || __ARM_ARCH >= 7 || defined(_M_ARMV7VE)
# define ARCH_UNALIGNED " + unaligned"
# else
# define ARCH_UNALIGNED ""
# endif
# if defined(__ARM_NEON) || defined(__ARM_NEON__)
# define ARCH_NEON " + NEON"
# else
# define ARCH_NEON ""
# endif
# define ARCH "ARMv" EXPAND_AND_QUOTE(__ARM_ARCH) ARCH_THUMB ARCH_NEON ARCH_UNALIGNED
#elif defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
# if defined(__GNUC__) && defined(__POWER9_VECTOR__)
# define ARCH "ppc64 + POWER9 vector"
# elif defined(__GNUC__) && defined(__POWER8_VECTOR__)
# define ARCH "ppc64 + POWER8 vector"
# else
# define ARCH "ppc64"
# endif
#elif defined(__powerpc__) || defined(__ppc__) || defined(__PPC__)
# define ARCH "ppc"
#elif defined(__AVR)
# define ARCH "AVR"
#elif defined(__mips64)
# define ARCH "mips64"
#elif defined(__mips)
# define ARCH "mips"
#elif defined(__s390x__)
# define ARCH "s390x"
#elif defined(__s390__)
# define ARCH "s390"
#else
# define ARCH "unknown"
#endif
static const int g_nbBits = (int)(sizeof(void*)*8);
static const char g_lename[] = "little endian";
static const char g_bename[] = "big endian";
#define ENDIAN_NAME (BMK_isLittleEndian() ? g_lename : g_bename)
static const char author[] = "Yann Collet";
#define WELCOME_MESSAGE(exename) "%s %s by %s \n", exename, PROGRAM_VERSION, author
#define FULL_WELCOME_MESSAGE(exename) "%s %s by %s \n" \
"compiled as %i-bit %s %s with " CC_VERSION_FMT " \n", \
exename, PROGRAM_VERSION, author, \
g_nbBits, ARCH, ENDIAN_NAME, CC_VERSION
#define KB *( 1<<10)
#define MB *( 1<<20)
#define GB *(1U<<30)
static size_t XXH_DEFAULT_SAMPLE_SIZE = 100 KB;
#define NBLOOPS 3 /* Default number of benchmark iterations */
#define TIMELOOP_S 1
#define TIMELOOP (TIMELOOP_S * CLOCKS_PER_SEC) /* target timing per iteration */
#define TIMELOOP_MIN (TIMELOOP / 2) /* minimum timing to validate a result */
#define XXHSUM32_DEFAULT_SEED 0 /* Default seed for algo_xxh32 */
#define XXHSUM64_DEFAULT_SEED 0 /* Default seed for algo_xxh64 */
#define MAX_MEM (2 GB - 64 MB)
static const char stdinName[] = "-";
typedef enum { algo_xxh32=0, algo_xxh64=1, algo_xxh128=2 } AlgoSelected;
static AlgoSelected g_defaultAlgo = algo_xxh64; /* required within main() & usage() */
/* <16 hex char> <SPC> <SPC> <filename> <'\0'>
* '4096' is typical Linux PATH_MAX configuration. */
#define DEFAULT_LINE_LENGTH (sizeof(XXH64_hash_t) * 2 + 2 + 4096 + 1)
/* Maximum acceptable line length. */
#define MAX_LINE_LENGTH (32 KB)
/* ************************************
* Display macros
**************************************/
#ifdef _WIN32
#define DISPLAY(...) fprintf_utf8(stderr, __VA_ARGS__)
#define DISPLAYRESULT(...) fprintf_utf8(stdout, __VA_ARGS__)
#else
#define DISPLAY(...) fprintf(stderr, __VA_ARGS__)
#define DISPLAYRESULT(...) fprintf(stdout, __VA_ARGS__)
#endif
#define DISPLAYLEVEL(l, ...) do { if (g_displayLevel>=l) DISPLAY(__VA_ARGS__); } while (0)
static int g_displayLevel = 2;
/* ************************************
* Local variables
**************************************/
static U32 g_nbIterations = NBLOOPS;
/* ************************************
* Benchmark Functions
**************************************/
static clock_t BMK_clockSpan( clock_t start )
{
return clock() - start; /* works even if overflow; Typical max span ~ 30 mn */
}
static size_t BMK_findMaxMem(U64 requiredMem)
{
size_t const step = 64 MB;
void* testmem = NULL;
requiredMem = (((requiredMem >> 26) + 1) << 26);
requiredMem += 2*step;
if (requiredMem > MAX_MEM) requiredMem = MAX_MEM;
while (!testmem) {
if (requiredMem > step) requiredMem -= step;
else requiredMem >>= 1;
testmem = malloc ((size_t)requiredMem);
}
free (testmem);
/* keep some space available */
if (requiredMem > step) requiredMem -= step;
else requiredMem >>= 1;
return (size_t)requiredMem;
}
static U64 BMK_GetFileSize(const char* infilename)
{
int r;
#if defined(_MSC_VER)
struct _stat64 statbuf;
r = _stat64(infilename, &statbuf);
#else
struct stat statbuf;
r = stat(infilename, &statbuf);
#endif
if (r || !S_ISREG(statbuf.st_mode)) return 0; /* No good... */
return (U64)statbuf.st_size;
}
/*
* Allocates a string containing s1 and s2 concatenated. Acts like strdup.
* The result must be freed.
*/
static char* XXH_strcatDup(const char* s1, const char* s2)
{
assert(s1 != NULL);
assert(s2 != NULL);
{ size_t len1 = strlen(s1);
size_t len2 = strlen(s2);
char* buf = (char*)malloc(len1 + len2 + 1);
if (buf != NULL) {
/* strcpy(buf, s1) */
memcpy(buf, s1, len1);
/* strcat(buf, s2) */
memcpy(buf + len1, s2, len2 + 1);
}
return buf;
}
}
/* use #define to make them constant, required for initialization */
#define PRIME32 2654435761U
#define PRIME64 11400714785074694797ULL
/*
* Fills a test buffer with pseudorandom data.
*
* This is used in the sanity check - its values must not be changed.
*/
static void BMK_fillTestBuffer(U8* buffer, size_t len)
{
U64 byteGen = PRIME32;
size_t i;
assert(buffer != NULL);
for (i=0; i<len; i++) {
buffer[i] = (U8)(byteGen>>56);
byteGen *= PRIME64;
}
}
/*
* A secret buffer used for benchmarking XXH3's withSecret variants.
*
* In order for the bench to be realistic, the secret buffer would need to be
* pre-generated.
*
* Adding a pointer to the parameter list would be messy.
*/
static U8 g_benchSecretBuf[XXH3_SECRET_SIZE_MIN];
/*
* Wrappers for the benchmark.
*
* If you would like to add other hashes to the bench, create a wrapper and add
* it to the g_hashesToBench table. It will automatically be added.
*/
typedef U32 (*hashFunction)(const void* buffer, size_t bufferSize, U32 seed);
static U32 localXXH32(const void* buffer, size_t bufferSize, U32 seed)
{
return XXH32(buffer, bufferSize, seed);
}
static U32 localXXH64(const void* buffer, size_t bufferSize, U32 seed)
{
return (U32)XXH64(buffer, bufferSize, seed);
}
static U32 localXXH3_64b(const void* buffer, size_t bufferSize, U32 seed)
{
(void)seed;
return (U32)XXH3_64bits(buffer, bufferSize);
}
static U32 localXXH3_64b_seeded(const void* buffer, size_t bufferSize, U32 seed)
{
return (U32)XXH3_64bits_withSeed(buffer, bufferSize, seed);
}
static U32 localXXH3_64b_secret(const void* buffer, size_t bufferSize, U32 seed)
{
(void)seed;
return (U32)XXH3_64bits_withSecret(buffer, bufferSize, g_benchSecretBuf, sizeof(g_benchSecretBuf));
}
static U32 localXXH3_128b(const void* buffer, size_t bufferSize, U32 seed)
{
(void)seed;
return (U32)(XXH3_128bits(buffer, bufferSize).low64);
}
static U32 localXXH3_128b_seeded(const void* buffer, size_t bufferSize, U32 seed)
{
return (U32)(XXH3_128bits_withSeed(buffer, bufferSize, seed).low64);
}
static U32 localXXH3_128b_secret(const void* buffer, size_t bufferSize, U32 seed)
{
(void)seed;
return (U32)(XXH3_128bits_withSecret(buffer, bufferSize, g_benchSecretBuf, sizeof(g_benchSecretBuf)).low64);
}
static U32 localXXH3_stream(const void* buffer, size_t bufferSize, U32 seed)
{
XXH3_state_t state;
(void)seed;
XXH3_64bits_reset(&state);
XXH3_64bits_update(&state, buffer, bufferSize);
return (U32)XXH3_64bits_digest(&state);
}
static U32 localXXH3_stream_seeded(const void* buffer, size_t bufferSize, U32 seed)
{
XXH3_state_t state;
XXH3_INITSTATE(&state);
XXH3_64bits_reset_withSeed(&state, (XXH64_hash_t)seed);
XXH3_64bits_update(&state, buffer, bufferSize);
return (U32)XXH3_64bits_digest(&state);
}
static U32 localXXH128_stream(const void* buffer, size_t bufferSize, U32 seed)
{
XXH3_state_t state;
(void)seed;
XXH3_128bits_reset(&state);
XXH3_128bits_update(&state, buffer, bufferSize);
return (U32)(XXH3_128bits_digest(&state).low64);
}
static U32 localXXH128_stream_seeded(const void* buffer, size_t bufferSize, U32 seed)
{
XXH3_state_t state;
XXH3_INITSTATE(&state);
XXH3_128bits_reset_withSeed(&state, (XXH64_hash_t)seed);
XXH3_128bits_update(&state, buffer, bufferSize);
return (U32)(XXH3_128bits_digest(&state).low64);
}
typedef struct {
const char* name;
hashFunction func;
} hashInfo;
#define NB_HASHFUNC 12
static const hashInfo g_hashesToBench[NB_HASHFUNC] = {
{ "XXH32", &localXXH32 },
{ "XXH64", &localXXH64 },
{ "XXH3_64b", &localXXH3_64b },
{ "XXH3_64b w/seed", &localXXH3_64b_seeded },
{ "XXH3_64b w/secret", &localXXH3_64b_secret },
{ "XXH128", &localXXH3_128b },
{ "XXH128 w/seed", &localXXH3_128b_seeded },
{ "XXH128 w/secret", &localXXH3_128b_secret },
{ "XXH3_stream", &localXXH3_stream },
{ "XXH3_stream w/seed",&localXXH3_stream_seeded },
{ "XXH128_stream", &localXXH128_stream },
{ "XXH128_stream w/seed",&localXXH128_stream_seeded },
};
#define NB_TESTFUNC (1 + 2 * NB_HASHFUNC)
static char g_testIDs[NB_TESTFUNC] = { 0 };
static const char k_testIDs_default[NB_TESTFUNC] = { 0,
1 /*XXH32*/, 0,
1 /*XXH64*/, 0,
1 /*XXH3*/, 0, 0, 0, 0, 0,
1 /*XXH128*/ };
#define HASHNAME_MAX 29
static void BMK_benchHash(hashFunction h, const char* hName, int testID,
const void* buffer, size_t bufferSize)
{
U32 nbh_perIteration = (U32)((300 MB) / (bufferSize+1)) + 1; /* first iteration conservatively aims for 300 MB/s */
unsigned iterationNb, nbIterations = g_nbIterations + !g_nbIterations /* min 1 */;
double fastestH = 100000000.;
assert(HASHNAME_MAX > 2);
DISPLAYLEVEL(2, "\r%80s\r", ""); /* Clean display line */
for (iterationNb = 1; iterationNb <= nbIterations; iterationNb++) {
U32 r=0;
clock_t cStart;
DISPLAYLEVEL(2, "%2u-%-*.*s : %10u ->\r",
iterationNb,
HASHNAME_MAX, HASHNAME_MAX, hName,
(unsigned)bufferSize);
cStart = clock();
while (clock() == cStart); /* starts clock() at its exact beginning */
cStart = clock();
{ U32 u;
for (u=0; u<nbh_perIteration; u++)
r += h(buffer, bufferSize, u);
}
if (r==0) DISPLAYLEVEL(3,".\r"); /* do something with r to defeat compiler "optimizing" hash away */
{ clock_t const nbTicks = BMK_clockSpan(cStart);
double const ticksPerHash = ((double)nbTicks / TIMELOOP) / nbh_perIteration;
/*
* clock() is the only decent portable timer, but it isn't very
* precise.
*
* Sometimes, this lack of precision is enough that the benchmark
* finishes before there are enough ticks to get a meaningful result.
*
* For example, on a Core 2 Duo (without any sort of Turbo Boost),
* the imprecise timer caused peculiar results like so:
*
* XXH3_64b 4800.0 MB/s // conveniently even
* XXH3_64b unaligned 4800.0 MB/s
* XXH3_64b seeded 9600.0 MB/s // magical 2x speedup?!
* XXH3_64b seeded unaligned 4800.0 MB/s
*
* If we sense a suspiciously low number of ticks, we increase the
* iterations until we can get something meaningful.
*/
if (nbTicks < TIMELOOP_MIN) {
/* Not enough time spent in benchmarking, risk of rounding bias */
if (nbTicks == 0) { /* faster than resolution timer */
nbh_perIteration *= 100;
} else {
/*
* update nbh_perIteration so that the next round lasts
* approximately 1 second.
*/
double nbh_perSecond = (1 / ticksPerHash) + 1;
if (nbh_perSecond > (double)(4000U<<20)) nbh_perSecond = (double)(4000U<<20); /* avoid overflow */
nbh_perIteration = (U32)nbh_perSecond;
}
/* g_nbIterations==0 => quick evaluation, no claim of accuracy */
if (g_nbIterations>0) {
iterationNb--; /* new round for a more accurate speed evaluation */
continue;
}
}
if (ticksPerHash < fastestH) fastestH = ticksPerHash;
if (fastestH>0.) { /* avoid div by zero */
DISPLAYLEVEL(2, "%2u-%-*.*s : %10u -> %8.0f it/s (%7.1f MB/s) \r",
iterationNb,
HASHNAME_MAX, HASHNAME_MAX, hName,
(unsigned)bufferSize,
(double)1 / fastestH,
((double)bufferSize / (1 MB)) / fastestH);
} }
{ double nbh_perSecond = (1 / fastestH) + 1;
if (nbh_perSecond > (double)(4000U<<20)) nbh_perSecond = (double)(4000U<<20); /* avoid overflow */
nbh_perIteration = (U32)nbh_perSecond;
}
}
DISPLAYLEVEL(1, "%2i#%-*.*s : %10u -> %8.0f it/s (%7.1f MB/s) \n",
testID,
HASHNAME_MAX, HASHNAME_MAX, hName,
(unsigned)bufferSize,
(double)1 / fastestH,
((double)bufferSize / (1 MB)) / fastestH);
if (g_displayLevel<1)
DISPLAYLEVEL(0, "%u, ", (unsigned)((double)1 / fastestH));
}
/*!
* BMK_benchMem():
* buffer: Must be 16-byte aligned.
* The real allocated size of buffer is supposed to be >= (bufferSize+3).
* returns: 0 on success, 1 if error (invalid mode selected)
*/
static void BMK_benchMem(const void* buffer, size_t bufferSize)
{
assert((((size_t)buffer) & 15) == 0); /* ensure alignment */
BMK_fillTestBuffer(g_benchSecretBuf, sizeof(g_benchSecretBuf));
{ int i;
for (i = 1; i < NB_TESTFUNC; i++) {
int const hashFuncID = (i-1) / 2;
assert(g_hashesToBench[hashFuncID].name != NULL);
if (g_testIDs[i] == 0) continue;
/* aligned */
if ((i % 2) == 1) {
BMK_benchHash(g_hashesToBench[hashFuncID].func, g_hashesToBench[hashFuncID].name, i, buffer, bufferSize);
}
/* unaligned */
if ((i % 2) == 0) {
/* Append "unaligned". */
char* const hashNameBuf = XXH_strcatDup(g_hashesToBench[hashFuncID].name, " unaligned");
assert(hashNameBuf != NULL);
BMK_benchHash(g_hashesToBench[hashFuncID].func, hashNameBuf, i, ((const char*)buffer)+3, bufferSize);
free(hashNameBuf);
}
} }
}
static size_t BMK_selectBenchedSize(const char* fileName)
{
U64 const inFileSize = BMK_GetFileSize(fileName);
size_t benchedSize = (size_t) BMK_findMaxMem(inFileSize);
if ((U64)benchedSize > inFileSize) benchedSize = (size_t)inFileSize;
if (benchedSize < inFileSize) {
DISPLAY("Not enough memory for '%s' full size; testing %i MB only...\n", fileName, (int)(benchedSize>>20));
}
return benchedSize;
}
static int BMK_benchFiles(const char*const* fileNamesTable, int nbFiles)
{
int fileIdx;
for (fileIdx=0; fileIdx<nbFiles; fileIdx++) {
const char* const inFileName = fileNamesTable[fileIdx];
assert(inFileName != NULL);
{ FILE* const inFile = XXH_fopen( inFileName, "rb" );
size_t const benchedSize = BMK_selectBenchedSize(inFileName);
char* const buffer = (char*)calloc(benchedSize+16+3, 1);
void* const alignedBuffer = (buffer+15) - (((size_t)(buffer+15)) & 0xF); /* align on next 16 bytes */
/* Checks */
if (inFile==NULL){
DISPLAY("Error: Could not open '%s': %s.\n", inFileName, strerror(errno));
free(buffer);
exit(11);
}
if(!buffer) {
DISPLAY("\nError: Out of memory.\n");
fclose(inFile);
exit(12);
}
/* Fill input buffer */
{ size_t const readSize = fread(alignedBuffer, 1, benchedSize, inFile);
fclose(inFile);
if(readSize != benchedSize) {
DISPLAY("\nError: Could not read '%s': %s.\n", inFileName, strerror(errno));
free(buffer);
exit(13);
} }
/* bench */
BMK_benchMem(alignedBuffer, benchedSize);
free(buffer);
} }
return 0;
}
static int BMK_benchInternal(size_t keySize)
{
void* const buffer = calloc(keySize+16+3, 1);
if (buffer == NULL) {
DISPLAY("\nError: Out of memory.\n");
exit(12);
}
{ const void* const alignedBuffer = ((char*)buffer+15) - (((size_t)((char*)buffer+15)) & 0xF); /* align on next 16 bytes */
/* bench */
DISPLAYLEVEL(1, "Sample of ");
if (keySize > 10 KB) {
DISPLAYLEVEL(1, "%u KB", (unsigned)(keySize >> 10));
} else {
DISPLAYLEVEL(1, "%u bytes", (unsigned)keySize);
}
DISPLAYLEVEL(1, "... \n");
BMK_benchMem(alignedBuffer, keySize);
free(buffer);
}
return 0;
}
/* ************************************************
* Self-test:
* ensure results consistency accross platforms
*********************************************** */
static void BMK_checkResult32(XXH32_hash_t r1, XXH32_hash_t r2)
{
static int nbTests = 1;
if (r1!=r2) {
DISPLAY("\rError: 32-bit hash test %i: Internal sanity check failed!\n", nbTests);
DISPLAY("\rGot 0x%08X, expected 0x%08X.\n", (unsigned)r1, (unsigned)r2);
DISPLAY("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily comment out the tests in BMK_sanityCheck.\n");
exit(1);
}
nbTests++;
}
static void BMK_checkResult64(XXH64_hash_t r1, XXH64_hash_t r2)
{
static int nbTests = 1;
if (r1!=r2) {
DISPLAY("\rError: 64-bit hash test %i: Internal sanity check failed!\n", nbTests);
DISPLAY("\rGot 0x%08X%08XULL, expected 0x%08X%08XULL.\n",
(unsigned)(r1>>32), (unsigned)r1, (unsigned)(r2>>32), (unsigned)r2);
DISPLAY("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily comment out the tests in BMK_sanityCheck.\n");
exit(1);
}
nbTests++;
}
static void BMK_checkResult128(XXH128_hash_t r1, XXH128_hash_t r2)
{
static int nbTests = 1;
if ((r1.low64 != r2.low64) || (r1.high64 != r2.high64)) {
DISPLAY("\rError: 128-bit hash test %i: Internal sanity check failed.\n", nbTests);
DISPLAY("\rGot { 0x%08X%08XULL, 0x%08X%08XULL }, expected { 0x%08X%08XULL, 0x%08X%08XULL } \n",
(unsigned)(r1.low64>>32), (unsigned)r1.low64, (unsigned)(r1.high64>>32), (unsigned)r1.high64,
(unsigned)(r2.low64>>32), (unsigned)r2.low64, (unsigned)(r2.high64>>32), (unsigned)r2.high64 );
DISPLAY("\rNote: If you modified the hash functions, make sure to either update the values\n"
"or temporarily comment out the tests in BMK_sanityCheck.\n");
exit(1);
}
nbTests++;
}
static void BMK_testXXH32(const void* data, size_t len, U32 seed, U32 Nresult)
{
XXH32_state_t *state = XXH32_createState();
size_t pos;
assert(state != NULL);
if (len>0) assert(data != NULL);
BMK_checkResult32(XXH32(data, len, seed), Nresult);
(void)XXH32_reset(state, seed);
(void)XXH32_update(state, data, len);
BMK_checkResult32(XXH32_digest(state), Nresult);
(void)XXH32_reset(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH32_update(state, ((const char*)data)+pos, 1);
BMK_checkResult32(XXH32_digest(state), Nresult);
XXH32_freeState(state);
}
static void BMK_testXXH64(const void* data, size_t len, U64 seed, U64 Nresult)
{
XXH64_state_t *state = XXH64_createState();
size_t pos;
assert(state != NULL);
if (len>0) assert(data != NULL);
BMK_checkResult64(XXH64(data, len, seed), Nresult);
(void)XXH64_reset(state, seed);
(void)XXH64_update(state, data, len);
BMK_checkResult64(XXH64_digest(state), Nresult);
(void)XXH64_reset(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH64_update(state, ((const char*)data)+pos, 1);
BMK_checkResult64(XXH64_digest(state), Nresult);
XXH64_freeState(state);
}
static U32 BMK_rand(void)
{
static U64 seed = PRIME32;
seed *= PRIME64;
return (U32)(seed >> 40);
}
void BMK_testXXH3(const void* data, size_t len, U64 seed, U64 Nresult)
{
if (len>0) assert(data != NULL);
{ U64 const Dresult = XXH3_64bits_withSeed(data, len, seed);
BMK_checkResult64(Dresult, Nresult);
}
/* check that the no-seed variant produces same result as seed==0 */
if (seed == 0) {
U64 const Dresult = XXH3_64bits(data, len);
BMK_checkResult64(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t* const state = XXH3_createState();
assert(state != NULL);
/* single ingestion */
(void)XXH3_64bits_reset_withSeed(state, seed);
(void)XXH3_64bits_update(state, data, len);
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
/* random ingestion */
{ size_t p = 0;
(void)XXH3_64bits_reset_withSeed(state, seed);
while (p < len) {
size_t const modulo = len > 2 ? len : 2;
size_t l = (size_t)(BMK_rand()) % modulo;
if (p + l > len) l = len - p;
(void)XXH3_64bits_update(state, (const char*)data+p, l);
p += l;
}
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
}
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_64bits_reset_withSeed(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH3_64bits_update(state, ((const char*)data)+pos, 1);
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
void BMK_testXXH3_withSecret(const void* data, size_t len, const void* secret, size_t secretSize, U64 Nresult)
{
if (len>0) assert(data != NULL);
{ U64 const Dresult = XXH3_64bits_withSecret(data, len, secret, secretSize);
BMK_checkResult64(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t *state = XXH3_createState();
assert(state != NULL);
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
(void)XXH3_64bits_update(state, data, len);
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
/* random ingestion */
{ size_t p = 0;
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
while (p < len) {
size_t const modulo = len > 2 ? len : 2;
size_t l = (size_t)(BMK_rand()) % modulo;
if (p + l > len) l = len - p;
(void)XXH3_64bits_update(state, (const char*)data+p, l);
p += l;
}
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
}
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_64bits_reset_withSecret(state, secret, secretSize);
for (pos=0; pos<len; pos++)
(void)XXH3_64bits_update(state, ((const char*)data)+pos, 1);
BMK_checkResult64(XXH3_64bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
void BMK_testXXH128(const void* data, size_t len, U64 seed, XXH128_hash_t Nresult)
{
{ XXH128_hash_t const Dresult = XXH3_128bits_withSeed(data, len, seed);
BMK_checkResult128(Dresult, Nresult);
}
/* check that XXH128() is identical to XXH3_128bits_withSeed() */
{ XXH128_hash_t const Dresult2 = XXH128(data, len, seed);
BMK_checkResult128(Dresult2, Nresult);
}
/* check that the no-seed variant produces same result as seed==0 */
if (seed == 0) {
XXH128_hash_t const Dresult = XXH3_128bits(data, len);
BMK_checkResult128(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t *state = XXH3_createState();
assert(state != NULL);
/* single ingestion */
(void)XXH3_128bits_reset_withSeed(state, seed);
(void)XXH3_128bits_update(state, data, len);
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
/* random ingestion */
{ size_t p = 0;
(void)XXH3_128bits_reset_withSeed(state, seed);
while (p < len) {
size_t const modulo = len > 2 ? len : 2;
size_t l = (size_t)(BMK_rand()) % modulo;
if (p + l > len) l = len - p;
(void)XXH3_128bits_update(state, (const char*)data+p, l);
p += l;
}
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
}
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_128bits_reset_withSeed(state, seed);
for (pos=0; pos<len; pos++)
(void)XXH3_128bits_update(state, ((const char*)data)+pos, 1);
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
void BMK_testXXH128_withSecret(const void* data, size_t len, const void* secret, size_t secretSize, XXH128_hash_t Nresult)
{
if (len>0) assert(data != NULL);
{ XXH128_hash_t const Dresult = XXH3_128bits_withSecret(data, len, secret, secretSize);
BMK_checkResult128(Dresult, Nresult);
}
/* streaming API test */
{ XXH3_state_t* const state = XXH3_createState();
assert(state != NULL);
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
(void)XXH3_128bits_update(state, data, len);
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
/* random ingestion */
{ size_t p = 0;
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
while (p < len) {
size_t const modulo = len > 2 ? len : 2;
size_t l = (size_t)(BMK_rand()) % modulo;
if (p + l > len) l = len - p;
(void)XXH3_128bits_update(state, (const char*)data+p, l);
p += l;
}
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
}
/* byte by byte ingestion */
{ size_t pos;
(void)XXH3_128bits_reset_withSecret(state, secret, secretSize);
for (pos=0; pos<len; pos++)
(void)XXH3_128bits_update(state, ((const char*)data)+pos, 1);
BMK_checkResult128(XXH3_128bits_digest(state), Nresult);
}
XXH3_freeState(state);
}
}
#define SECRET_SAMPLE_NBBYTES 4
typedef struct { U8 byte[SECRET_SAMPLE_NBBYTES]; } verifSample_t;
void BMK_testSecretGenerator(const void* customSeed, size_t len, verifSample_t result)
{
static int nbTests = 1;
const int sampleIndex[SECRET_SAMPLE_NBBYTES] = { 0, 62, 131, 191};
U8 secretBuffer[XXH3_SECRET_DEFAULT_SIZE] = {0};
verifSample_t samples;
int i;
XXH3_generateSecret(secretBuffer, customSeed, len);
for (i=0; i<SECRET_SAMPLE_NBBYTES; i++) {
samples.byte[i] = secretBuffer[sampleIndex[i]];
}
if (memcmp(&samples, &result, sizeof(result))) {
DISPLAY("\rError: Secret generation test %i: Internal sanity check failed. \n", nbTests);
DISPLAY("\rGot { 0x%02X, 0x%02X, 0x%02X, 0x%02X }, expected { 0x%02X, 0x%02X, 0x%02X, 0x%02X } \n",
samples.byte[0], samples.byte[1], samples.byte[2], samples.byte[3],
result.byte[0], result.byte[1], result.byte[2], result.byte[3] );
exit(1);
}
nbTests++;
}
/*!
* BMK_sanityCheck():
* Runs a sanity check before the benchmark.
*
* Exits on an incorrect output.
*/
static void BMK_sanityCheck(void)
{
#define SANITY_BUFFER_SIZE 2367
U8 sanityBuffer[SANITY_BUFFER_SIZE];
BMK_fillTestBuffer(sanityBuffer, sizeof(sanityBuffer));
BMK_testXXH32(NULL, 0, 0, 0x02CC5D05);
BMK_testXXH32(NULL, 0, PRIME32, 0x36B78AE7);
BMK_testXXH32(sanityBuffer, 1, 0, 0xCF65B03E);
BMK_testXXH32(sanityBuffer, 1, PRIME32, 0xB4545AA4);
BMK_testXXH32(sanityBuffer, 14, 0, 0x1208E7E2);
BMK_testXXH32(sanityBuffer, 14, PRIME32, 0x6AF1D1FE);
BMK_testXXH32(sanityBuffer,222, 0, 0x5BD11DBD);
BMK_testXXH32(sanityBuffer,222, PRIME32, 0x58803C5F);
BMK_testXXH64(NULL , 0, 0, 0xEF46DB3751D8E999ULL);
BMK_testXXH64(NULL , 0, PRIME32, 0xAC75FDA2929B17EFULL);
BMK_testXXH64(sanityBuffer, 1, 0, 0xE934A84ADB052768ULL);
BMK_testXXH64(sanityBuffer, 1, PRIME32, 0x5014607643A9B4C3ULL);
BMK_testXXH64(sanityBuffer, 4, 0, 0x9136A0DCA57457EEULL);
BMK_testXXH64(sanityBuffer, 14, 0, 0x8282DCC4994E35C8ULL);
BMK_testXXH64(sanityBuffer, 14, PRIME32, 0xC3BD6BF63DEB6DF0ULL);
BMK_testXXH64(sanityBuffer,222, 0, 0xB641AE8CB691C174ULL);
BMK_testXXH64(sanityBuffer,222, PRIME32, 0x20CB8AB7AE10C14AULL);
BMK_testXXH3(NULL, 0, 0, 0x2D06800538D394C2ULL); /* empty string */
BMK_testXXH3(NULL, 0, PRIME64, 0xA8A6B918B2F0364AULL);
BMK_testXXH3(sanityBuffer, 1, 0, 0xC44BDFF4074EECDBULL); /* 1 - 3 */
BMK_testXXH3(sanityBuffer, 1, PRIME64, 0x032BE332DD766EF8ULL); /* 1 - 3 */
BMK_testXXH3(sanityBuffer, 6, 0, 0x27B56A84CD2D7325ULL); /* 4 - 8 */
BMK_testXXH3(sanityBuffer, 6, PRIME64, 0x84589C116AB59AB9ULL); /* 4 - 8 */
BMK_testXXH3(sanityBuffer, 12, 0, 0xA713DAF0DFBB77E7ULL); /* 9 - 16 */
BMK_testXXH3(sanityBuffer, 12, PRIME64, 0xE7303E1B2336DE0EULL); /* 9 - 16 */
BMK_testXXH3(sanityBuffer, 24, 0, 0xA3FE70BF9D3510EBULL); /* 17 - 32 */
BMK_testXXH3(sanityBuffer, 24, PRIME64, 0x850E80FC35BDD690ULL); /* 17 - 32 */
BMK_testXXH3(sanityBuffer, 48, 0, 0x397DA259ECBA1F11ULL); /* 33 - 64 */
BMK_testXXH3(sanityBuffer, 48, PRIME64, 0xADC2CBAA44ACC616ULL); /* 33 - 64 */
BMK_testXXH3(sanityBuffer, 80, 0, 0xBCDEFBBB2C47C90AULL); /* 65 - 96 */
BMK_testXXH3(sanityBuffer, 80, PRIME64, 0xC6DD0CB699532E73ULL); /* 65 - 96 */
BMK_testXXH3(sanityBuffer, 195, 0, 0xCD94217EE362EC3AULL); /* 129-240 */
BMK_testXXH3(sanityBuffer, 195, PRIME64, 0xBA68003D370CB3D9ULL); /* 129-240 */
BMK_testXXH3(sanityBuffer, 403, 0, 0xCDEB804D65C6DEA4ULL); /* one block, last stripe is overlapping */
BMK_testXXH3(sanityBuffer, 403, PRIME64, 0x6259F6ECFD6443FDULL); /* one block, last stripe is overlapping */
BMK_testXXH3(sanityBuffer, 512, 0, 0x617E49599013CB6BULL); /* one block, finishing at stripe boundary */
BMK_testXXH3(sanityBuffer, 512, PRIME64, 0x3CE457DE14C27708ULL); /* one block, finishing at stripe boundary */
BMK_testXXH3(sanityBuffer,2048, 0, 0xDD59E2C3A5F038E0ULL); /* 2 blocks, finishing at block boundary */
BMK_testXXH3(sanityBuffer,2048, PRIME64, 0x66F81670669ABABCULL); /* 2 blocks, finishing at block boundary */
BMK_testXXH3(sanityBuffer,2240, 0, 0x6E73A90539CF2948ULL); /* 3 blocks, finishing at stripe boundary */
BMK_testXXH3(sanityBuffer,2240, PRIME64, 0x757BA8487D1B5247ULL); /* 3 blocks, finishing at stripe boundary */
BMK_testXXH3(sanityBuffer,2367, 0, 0xCB37AEB9E5D361EDULL); /* 3 blocks, last stripe is overlapping */
BMK_testXXH3(sanityBuffer,2367, PRIME64, 0xD2DB3415B942B42AULL); /* 3 blocks, last stripe is overlapping */
/* XXH3 with Custom Secret */
{ const void* const secret = sanityBuffer + 7;
const size_t secretSize = XXH3_SECRET_SIZE_MIN + 11;
assert(sizeof(sanityBuffer) >= 7 + secretSize);
BMK_testXXH3_withSecret(NULL, 0, secret, secretSize, 0x3559D64878C5C66CULL); /* empty string */
BMK_testXXH3_withSecret(sanityBuffer, 1, secret, secretSize, 0x8A52451418B2DA4DULL); /* 1 - 3 */
BMK_testXXH3_withSecret(sanityBuffer, 6, secret, secretSize, 0x82C90AB0519369ADULL); /* 4 - 8 */
BMK_testXXH3_withSecret(sanityBuffer, 12, secret, secretSize, 0x14631E773B78EC57ULL); /* 9 - 16 */
BMK_testXXH3_withSecret(sanityBuffer, 24, secret, secretSize, 0xCDD5542E4A9D9FE8ULL); /* 17 - 32 */
BMK_testXXH3_withSecret(sanityBuffer, 48, secret, secretSize, 0x33ABD54D094B2534ULL); /* 33 - 64 */
BMK_testXXH3_withSecret(sanityBuffer, 80, secret, secretSize, 0xE687BA1684965297ULL); /* 65 - 96 */
BMK_testXXH3_withSecret(sanityBuffer, 195, secret, secretSize, 0xA057273F5EECFB20ULL); /* 129-240 */
BMK_testXXH3_withSecret(sanityBuffer, 403, secret, secretSize, 0x14546019124D43B8ULL); /* one block, last stripe is overlapping */
BMK_testXXH3_withSecret(sanityBuffer, 512, secret, secretSize, 0x7564693DD526E28DULL); /* one block, finishing at stripe boundary */
BMK_testXXH3_withSecret(sanityBuffer,2048, secret, secretSize, 0xD32E975821D6519FULL); /* >= 2 blocks, at least one scrambling */
BMK_testXXH3_withSecret(sanityBuffer,2367, secret, secretSize, 0x293FA8E5173BB5E7ULL); /* >= 2 blocks, at least one scrambling, last stripe unaligned */
BMK_testXXH3_withSecret(sanityBuffer,64*10*3, secret, secretSize, 0x751D2EC54BC6038BULL); /* exactly 3 full blocks, not a multiple of 256 */
}
/* XXH128 */
{ XXH128_hash_t const expected = { 0x6001C324468D497FULL, 0x99AA06D3014798D8ULL };
BMK_testXXH128(NULL, 0, 0, expected); /* empty string */
}
{ XXH128_hash_t const expected = { 0x5444F7869C671AB0ULL, 0x92220AE55E14AB50ULL };
BMK_testXXH128(NULL, 0, PRIME32, expected);
}
{ XXH128_hash_t const expected = { 0xC44BDFF4074EECDBULL, 0xA6CD5E9392000F6AULL };
BMK_testXXH128(sanityBuffer, 1, 0, expected); /* 1-3 */
}
{ XXH128_hash_t const expected = { 0xB53D5557E7F76F8DULL, 0x89B99554BA22467CULL };
BMK_testXXH128(sanityBuffer, 1, PRIME32, expected); /* 1-3 */
}
{ XXH128_hash_t const expected = { 0x3E7039BDDA43CFC6ULL, 0x082AFE0B8162D12AULL };
BMK_testXXH128(sanityBuffer, 6, 0, expected); /* 4-8 */
}
{ XXH128_hash_t const expected = { 0x269D8F70BE98856EULL, 0x5A865B5389ABD2B1ULL };
BMK_testXXH128(sanityBuffer, 6, PRIME32, expected); /* 4-8 */
}
{ XXH128_hash_t const expected = { 0x061A192713F69AD9ULL, 0x6E3EFD8FC7802B18ULL };
BMK_testXXH128(sanityBuffer, 12, 0, expected); /* 9-16 */
}
{ XXH128_hash_t const expected = { 0x9BE9F9A67F3C7DFBULL, 0xD7E09D518A3405D3ULL };
BMK_testXXH128(sanityBuffer, 12, PRIME32, expected); /* 9-16 */
}
{ XXH128_hash_t const expected = { 0x1E7044D28B1B901DULL, 0x0CE966E4678D3761ULL };
BMK_testXXH128(sanityBuffer, 24, 0, expected); /* 17-32 */
}
{ XXH128_hash_t const expected = { 0xD7304C54EBAD40A9ULL, 0x3162026714A6A243ULL };
BMK_testXXH128(sanityBuffer, 24, PRIME32, expected); /* 17-32 */
}
{ XXH128_hash_t const expected = { 0xF942219AED80F67BULL, 0xA002AC4E5478227EULL };
BMK_testXXH128(sanityBuffer, 48, 0, expected); /* 33-64 */
}
{ XXH128_hash_t const expected = { 0x7BA3C3E453A1934EULL, 0x163ADDE36C072295ULL };
BMK_testXXH128(sanityBuffer, 48, PRIME32, expected); /* 33-64 */
}
{ XXH128_hash_t const expected = { 0x5E8BAFB9F95FB803ULL, 0x4952F58181AB0042ULL };
BMK_testXXH128(sanityBuffer, 81, 0, expected); /* 65-96 */
}
{ XXH128_hash_t const expected = { 0x703FBB3D7A5F755CULL, 0x2724EC7ADC750FB6ULL };
BMK_testXXH128(sanityBuffer, 81, PRIME32, expected); /* 65-96 */
}
{ XXH128_hash_t const expected = { 0xF1AEBD597CEC6B3AULL, 0x337E09641B948717ULL };
BMK_testXXH128(sanityBuffer, 222, 0, expected); /* 129-240 */
}
{ XXH128_hash_t const expected = { 0xAE995BB8AF917A8DULL, 0x91820016621E97F1ULL };
BMK_testXXH128(sanityBuffer, 222, PRIME32, expected); /* 129-240 */
}
{ XXH128_hash_t const expected = { 0xCDEB804D65C6DEA4ULL, 0x1B6DE21E332DD73DULL };
BMK_testXXH128(sanityBuffer, 403, 0, expected); /* one block, last stripe is overlapping */
}
{ XXH128_hash_t const expected = { 0x6259F6ECFD6443FDULL, 0xBED311971E0BE8F2ULL };
BMK_testXXH128(sanityBuffer, 403, PRIME64, expected); /* one block, last stripe is overlapping */
}
{ XXH128_hash_t const expected = { 0x617E49599013CB6BULL, 0x18D2D110DCC9BCA1ULL };
BMK_testXXH128(sanityBuffer, 512, 0, expected); /* one block, finishing at stripe boundary */
}
{ XXH128_hash_t const expected = { 0x3CE457DE14C27708ULL, 0x925D06B8EC5B8040ULL };
BMK_testXXH128(sanityBuffer, 512, PRIME64, expected); /* one block, finishing at stripe boundary */
}
{ XXH128_hash_t const expected = { 0xDD59E2C3A5F038E0ULL, 0xF736557FD47073A5ULL };
BMK_testXXH128(sanityBuffer,2048, 0, expected); /* two blocks, finishing at block boundary */
}
{ XXH128_hash_t const expected = { 0x230D43F30206260BULL, 0x7FB03F7E7186C3EAULL };
BMK_testXXH128(sanityBuffer,2048, PRIME32, expected); /* two blocks, finishing at block boundary */
}
{ XXH128_hash_t const expected = { 0x6E73A90539CF2948ULL, 0xCCB134FBFA7CE49DULL };
BMK_testXXH128(sanityBuffer,2240, 0, expected); /* two blocks, ends at stripe boundary */
}
{ XXH128_hash_t const expected = { 0xED385111126FBA6FULL, 0x50A1FE17B338995FULL };
BMK_testXXH128(sanityBuffer,2240, PRIME32, expected); /* two blocks, ends at stripe boundary */
}
{ XXH128_hash_t const expected = { 0xCB37AEB9E5D361EDULL, 0xE89C0F6FF369B427ULL };
BMK_testXXH128(sanityBuffer,2367, 0, expected); /* two blocks, last stripe is overlapping */
}
{ XXH128_hash_t const expected = { 0x6F5360AE69C2F406ULL, 0xD23AAE4B76C31ECBULL };
BMK_testXXH128(sanityBuffer,2367, PRIME32, expected); /* two blocks, last stripe is overlapping */
}
/* XXH128 with custom Secret */
{ const void* const secret = sanityBuffer + 7;
const size_t secretSize = XXH3_SECRET_SIZE_MIN + 11;
assert(sizeof(sanityBuffer) >= 7 + secretSize);
{ XXH128_hash_t const expected = { 0x005923CCEECBE8AEULL, 0x5F70F4EA232F1D38ULL };
BMK_testXXH128_withSecret(NULL, 0, secret, secretSize, expected); /* empty string */
}
{ XXH128_hash_t const expected = { 0x8A52451418B2DA4DULL, 0x3A66AF5A9819198EULL };
BMK_testXXH128_withSecret(sanityBuffer, 1, secret, secretSize, expected); /* 1-3 */
}
{ XXH128_hash_t const expected = { 0x0B61C8ACA7D4778FULL, 0x376BD91B6432F36DULL };
BMK_testXXH128_withSecret(sanityBuffer, 6, secret, secretSize, expected); /* 4-8 */
}
{ XXH128_hash_t const expected = { 0xAF82F6EBA263D7D8ULL, 0x90A3C2D839F57D0FULL };
BMK_testXXH128_withSecret(sanityBuffer, 12, secret, secretSize, expected); /* 9-16 */
}
}
/* secret generator */
{ verifSample_t const expected = { { 0xB8, 0x26, 0x83, 0x7E } };
BMK_testSecretGenerator(NULL, 0, expected);
}
{ verifSample_t const expected = { { 0xA6, 0x16, 0x06, 0x7B } };
BMK_testSecretGenerator(sanityBuffer, 1, expected);
}
{ verifSample_t const expected = { { 0xDA, 0x2A, 0x12, 0x11 } };
BMK_testSecretGenerator(sanityBuffer, XXH3_SECRET_SIZE_MIN - 1, expected);
}
{ verifSample_t const expected = { { 0x7E, 0x48, 0x0C, 0xA7 } };
BMK_testSecretGenerator(sanityBuffer, XXH3_SECRET_DEFAULT_SIZE + 500, expected);
}
DISPLAYLEVEL(3, "\r%70s\r", ""); /* Clean display line */
DISPLAYLEVEL(3, "Sanity check -- all tests ok\n");
}
/* ********************************************************
* File Hashing
**********************************************************/
#if defined(_MSC_VER)
typedef struct __stat64 stat_t;
typedef int mode_t;
#else
typedef struct stat stat_t;
#endif
#include <sys/types.h> /* struct stat / __start64 */
#include <sys/stat.h> /* stat() / _stat64() */
int XSUM_isDirectory(const char* infilename)
{
stat_t statbuf;
#if defined(_MSC_VER)
int const r = _stat64(infilename, &statbuf);
if (!r && (statbuf.st_mode & _S_IFDIR)) return 1;
#else
int const r = stat(infilename, &statbuf);
if (!r && S_ISDIR(statbuf.st_mode)) return 1;
#endif
return 0;
}
/* for support of --little-endian display mode */
static void BMK_display_LittleEndian(const void* ptr, size_t length)
{
const U8* const p = (const U8*)ptr;
size_t idx;
for (idx=length-1; idx<length; idx--) /* intentional underflow to negative to detect end */
DISPLAYRESULT("%02x", p[idx]);
}
static void BMK_display_BigEndian(const void* ptr, size_t length)
{
const U8* const p = (const U8*)ptr;
size_t idx;
for (idx=0; idx<length; idx++)
DISPLAYRESULT("%02x", p[idx]);
}
typedef union {
XXH32_hash_t xxh32;
XXH64_hash_t xxh64;
XXH128_hash_t xxh128;
} Multihash;
/*
* XSUM_hashStream:
* Reads data from `inFile`, generating an incremental hash of type hashType,
* using `buffer` of size `blockSize` for temporary storage.
*/
static Multihash
XSUM_hashStream(FILE* inFile,
AlgoSelected hashType,
void* buffer, size_t blockSize)
{
XXH32_state_t state32;
XXH64_state_t state64;
XXH3_state_t state128;
/* Init */
(void)XXH32_reset(&state32, XXHSUM32_DEFAULT_SEED);
(void)XXH64_reset(&state64, XXHSUM64_DEFAULT_SEED);
(void)XXH3_128bits_reset(&state128);
/* Load file & update hash */
{ size_t readSize;
while ((readSize = fread(buffer, 1, blockSize, inFile)) > 0) {
switch(hashType)
{
case algo_xxh32:
(void)XXH32_update(&state32, buffer, readSize);
break;
case algo_xxh64:
(void)XXH64_update(&state64, buffer, readSize);
break;
case algo_xxh128:
(void)XXH3_128bits_update(&state128, buffer, readSize);
break;
default:
assert(0);
}
}
if (ferror(inFile)) {
DISPLAY("Error: a failure occurred reading the input file.\n");
exit(1);
} }
{ Multihash finalHash = {0};
switch(hashType)
{
case algo_xxh32:
finalHash.xxh32 = XXH32_digest(&state32);
break;
case algo_xxh64:
finalHash.xxh64 = XXH64_digest(&state64);
break;
case algo_xxh128:
finalHash.xxh128 = XXH3_128bits_digest(&state128);
break;
default:
assert(0);
}
return finalHash;
}
}
/* algo_xxh32, algo_xxh64, algo_xxh128 */
static const char* XSUM_algoName[] = { "XXH32", "XXH64", "XXH128" };
static const char* XSUM_algoLE_name[] = { "XXH32_LE", "XXH64_LE", "XXH128_LE" };
static const size_t XSUM_algoLength[] = { 4, 8, 16 };
#define XSUM_TABLE_ELT_SIZE(table) (sizeof(table) / sizeof(*table))
typedef void (*XSUM_displayHash_f)(const void*, size_t); /* display function signature */
static void XSUM_printLine_BSD_internal(const char* filename,
const void* canonicalHash, const AlgoSelected hashType,
const char* algoString[],
XSUM_displayHash_f f_displayHash)
{
assert(0 <= hashType && hashType <= XSUM_TABLE_ELT_SIZE(XSUM_algoName));
{ const char* const typeString = algoString[hashType];
const size_t hashLength = XSUM_algoLength[hashType];
DISPLAYRESULT("%s (%s) = ", typeString, filename);
f_displayHash(canonicalHash, hashLength);
DISPLAYRESULT("\n");
} }
static void XSUM_printLine_BSD_LE(const char* filename, const void* canonicalHash, const AlgoSelected hashType)
{
XSUM_printLine_BSD_internal(filename, canonicalHash, hashType, XSUM_algoLE_name, BMK_display_LittleEndian);
}
static void XSUM_printLine_BSD(const char* filename, const void* canonicalHash, const AlgoSelected hashType)
{
XSUM_printLine_BSD_internal(filename, canonicalHash, hashType, XSUM_algoName, BMK_display_BigEndian);
}
static void XSUM_printLine_GNU_internal(const char* filename,
const void* canonicalHash, const AlgoSelected hashType,
XSUM_displayHash_f f_displayHash)
{
assert(0 <= hashType && hashType <= XSUM_TABLE_ELT_SIZE(XSUM_algoName));
{ const size_t hashLength = XSUM_algoLength[hashType];
f_displayHash(canonicalHash, hashLength);
DISPLAYRESULT(" %s\n", filename);
} }
static void XSUM_printLine_GNU(const char* filename,
const void* canonicalHash, const AlgoSelected hashType)
{
XSUM_printLine_GNU_internal(filename, canonicalHash, hashType, BMK_display_BigEndian);
}
static void XSUM_printLine_GNU_LE(const char* filename,
const void* canonicalHash, const AlgoSelected hashType)
{
XSUM_printLine_GNU_internal(filename, canonicalHash, hashType, BMK_display_LittleEndian);
}
typedef enum { big_endian, little_endian} Display_endianess;
typedef enum { display_gnu, display_bsd } Display_convention;
typedef void (*XSUM_displayLine_f)(const char*, const void*, AlgoSelected); /* line display signature */
static XSUM_displayLine_f XSUM_kDisplayLine_fTable[2][2] = {
{ XSUM_printLine_GNU, XSUM_printLine_GNU_LE },
{ XSUM_printLine_BSD, XSUM_printLine_BSD_LE }
};
static int XSUM_hashFile(const char* fileName,
const AlgoSelected hashType,
const Display_endianess displayEndianess,
const Display_convention convention)
{
size_t const blockSize = 64 KB;
XSUM_displayLine_f const f_displayLine = XSUM_kDisplayLine_fTable[convention][displayEndianess];
FILE* inFile;
Multihash hashValue;
assert(displayEndianess==big_endian || displayEndianess==little_endian);
assert(convention==display_gnu || convention==display_bsd);
/* Check file existence */
if (fileName == stdinName) {
inFile = stdin;
fileName = "stdin";
SET_BINARY_MODE(stdin);
} else {
if (XSUM_isDirectory(fileName)) {
DISPLAY("xxhsum: %s: Is a directory \n", fileName);
return 1;
}
inFile = XXH_fopen( fileName, "rb" );
if (inFile==NULL) {
DISPLAY("Error: Could not open '%s': %s. \n", fileName, strerror(errno));
return 1;
} }
/* Memory allocation & streaming */
{ void* const buffer = malloc(blockSize);
if (buffer == NULL) {
DISPLAY("\nError: Out of memory.\n");
fclose(inFile);
return 1;
}
/* Stream file & update hash */
hashValue = XSUM_hashStream(inFile, hashType, buffer, blockSize);
fclose(inFile);
free(buffer);
}
/* display Hash value in selected format */
switch(hashType)
{
case algo_xxh32:
{ XXH32_canonical_t hcbe32;
(void)XXH32_canonicalFromHash(&hcbe32, hashValue.xxh32);
f_displayLine(fileName, &hcbe32, hashType);
break;
}
case algo_xxh64:
{ XXH64_canonical_t hcbe64;
(void)XXH64_canonicalFromHash(&hcbe64, hashValue.xxh64);
f_displayLine(fileName, &hcbe64, hashType);
break;
}
case algo_xxh128:
{ XXH128_canonical_t hcbe128;
(void)XXH128_canonicalFromHash(&hcbe128, hashValue.xxh128);
f_displayLine(fileName, &hcbe128, hashType);
break;
}
default:
assert(0); /* not possible */
}
return 0;
}
/*
* XSUM_hashFiles:
* If fnTotal==0, read from stdin instead.
*/
static int XSUM_hashFiles(const char*const * fnList, int fnTotal,
AlgoSelected hashType,
Display_endianess displayEndianess,
Display_convention convention)
{
int fnNb;
int result = 0;
if (fnTotal==0)
return XSUM_hashFile(stdinName, hashType, displayEndianess, convention);
for (fnNb=0; fnNb<fnTotal; fnNb++)
result |= XSUM_hashFile(fnList[fnNb], hashType, displayEndianess, convention);
DISPLAYLEVEL(2, "\r%70s\r", "");
return result;
}
typedef enum {
GetLine_ok,
GetLine_eof,
GetLine_exceedMaxLineLength,
GetLine_outOfMemory
} GetLineResult;
typedef enum {
CanonicalFromString_ok,
CanonicalFromString_invalidFormat
} CanonicalFromStringResult;
typedef enum {
ParseLine_ok,
ParseLine_invalidFormat
} ParseLineResult;
typedef enum {
LineStatus_hashOk,
LineStatus_hashFailed,
LineStatus_failedToOpen
} LineStatus;
typedef union {
XXH32_canonical_t xxh32;
XXH64_canonical_t xxh64;
XXH128_canonical_t xxh128;
} Canonical;
typedef struct {
Canonical canonical;
const char* filename;
int xxhBits; /* canonical type: 32:xxh32, 64:xxh64, 128:xxh128 */
} ParsedLine;
typedef struct {
unsigned long nProperlyFormattedLines;
unsigned long nImproperlyFormattedLines;
unsigned long nMismatchedChecksums;
unsigned long nOpenOrReadFailures;
unsigned long nMixedFormatLines;
int quit;
} ParseFileReport;
typedef struct {
const char* inFileName;
FILE* inFile;
int lineMax;
char* lineBuf;
size_t blockSize;
char* blockBuf;
U32 strictMode;
U32 statusOnly;
U32 warn;
U32 quiet;
ParseFileReport report;
} ParseFileArg;
/*
* Reads a line from stream `inFile`.
* Returns GetLine_ok, if it reads line successfully.
* Returns GetLine_eof, if stream reaches EOF.
* Returns GetLine_exceedMaxLineLength, if line length is longer than MAX_LINE_LENGTH.
* Returns GetLine_outOfMemory, if line buffer memory allocation failed.
*/
static GetLineResult getLine(char** lineBuf, int* lineMax, FILE* inFile)
{
GetLineResult result = GetLine_ok;
size_t len = 0;
if ((*lineBuf == NULL) || (*lineMax<1)) {
free(*lineBuf); /* in case it's != NULL */
*lineMax = 0;
*lineBuf = (char*)malloc(DEFAULT_LINE_LENGTH);
if(*lineBuf == NULL) return GetLine_outOfMemory;
*lineMax = DEFAULT_LINE_LENGTH;
}
for (;;) {
const int c = fgetc(inFile);
if (c == EOF) {
/*
* If we meet EOF before first character, returns GetLine_eof,
* otherwise GetLine_ok.
*/
if (len == 0) result = GetLine_eof;
break;
}
/* Make enough space for len+1 (for final NUL) bytes. */
if (len+1 >= (size_t)*lineMax) {
char* newLineBuf = NULL;
size_t newBufSize = (size_t)*lineMax;
newBufSize += (newBufSize/2) + 1; /* x 1.5 */
if (newBufSize > MAX_LINE_LENGTH) newBufSize = MAX_LINE_LENGTH;
if (len+1 >= newBufSize) return GetLine_exceedMaxLineLength;
newLineBuf = (char*) realloc(*lineBuf, newBufSize);
if (newLineBuf == NULL) return GetLine_outOfMemory;
*lineBuf = newLineBuf;
*lineMax = (int)newBufSize;
}
if (c == '\n') break;
(*lineBuf)[len++] = (char) c;
}
(*lineBuf)[len] = '\0';
return result;
}
/*
* Converts one hexadecimal character to integer.
* Returns -1 if the given character is not hexadecimal.
*/
static int charToHex(char c)
{
int result = -1;
if (c >= '0' && c <= '9') {
result = (int) (c - '0');
} else if (c >= 'A' && c <= 'F') {
result = (int) (c - 'A') + 0x0a;
} else if (c >= 'a' && c <= 'f') {
result = (int) (c - 'a') + 0x0a;
}
return result;
}
/*
* Converts canonical ASCII hexadecimal string `hashStr`
* to the big endian binary representation in unsigned char array `dst`.
*
* Returns CanonicalFromString_invalidFormat if hashStr is not well formatted.
* Returns CanonicalFromString_ok if hashStr is parsed successfully.
*/
static CanonicalFromStringResult canonicalFromString(unsigned char* dst,
size_t dstSize,
const char* hashStr,
int reverseBytes)
{
size_t i;
for (i = 0; i < dstSize; ++i) {
int h0, h1;
size_t j = reverseBytes ? dstSize - i - 1 : i;
h0 = charToHex(hashStr[j*2 + 0]);
if (h0 < 0) return CanonicalFromString_invalidFormat;
h1 = charToHex(hashStr[j*2 + 1]);
if (h1 < 0) return CanonicalFromString_invalidFormat;
dst[i] = (unsigned char) ((h0 << 4) | h1);
}
return CanonicalFromString_ok;
}
/*
* Parse single line of xxHash checksum file.
* Returns ParseLine_invalidFormat if the line is not well formatted.
* Returns ParseLine_ok if the line is parsed successfully.
* And members of parseLine will be filled by parsed values.
*
* - line must be terminated with '\0' without a trailing newline.
* - Since parsedLine.filename will point within given argument `line`,
* users must keep `line`s content when they are using parsedLine.
* - The line may be modified to carve up the information it contains.
*
* xxHash checksum lines should have the following format:
*
* <8, 16, or 32 hexadecimal char> <space> <space> <filename...> <'\0'>
*
* or:
*
* <algorithm> <' ('> <filename> <') = '> <hexstring> <'\0'>
*/
static ParseLineResult parseLine(ParsedLine* parsedLine, char* line, int rev)
{
char* const firstSpace = strchr(line, ' ');
const char* hash_ptr;
size_t hash_len;
parsedLine->filename = NULL;
parsedLine->xxhBits = 0;
if (firstSpace == NULL || !firstSpace[1]) return ParseLine_invalidFormat;
if (firstSpace[1] == '(') {
char* lastSpace = strrchr(line, ' ');
if (lastSpace - firstSpace < 5) return ParseLine_invalidFormat;
if (lastSpace[-1] != '=' || lastSpace[-2] != ' ' || lastSpace[-3] != ')') return ParseLine_invalidFormat;
lastSpace[-3] = '\0'; /* Terminate the filename */
*firstSpace = '\0';
rev = strstr(line, "_LE") != NULL; /* was output little-endian */
hash_ptr = lastSpace + 1;
hash_len = strlen(hash_ptr);
/* NOTE: This currently ignores the hash description at the start of the string.
* In the future we should parse it and verify that it matches the hash length.
* It could also be used to allow both XXH64 & XXH3_64bits to be differentiated. */
} else {
hash_ptr = line;
hash_len = (size_t)(firstSpace - line);
}
switch (hash_len)
{
case 8:
{ XXH32_canonical_t* xxh32c = &parsedLine->canonical.xxh32;
if (canonicalFromString(xxh32c->digest, sizeof(xxh32c->digest), hash_ptr, rev)
!= CanonicalFromString_ok) {
return ParseLine_invalidFormat;
}
parsedLine->xxhBits = 32;
break;
}
case 16:
{ XXH64_canonical_t* xxh64c = &parsedLine->canonical.xxh64;
if (canonicalFromString(xxh64c->digest, sizeof(xxh64c->digest), hash_ptr, rev)
!= CanonicalFromString_ok) {
return ParseLine_invalidFormat;
}
parsedLine->xxhBits = 64;
break;
}
case 32:
{ XXH128_canonical_t* xxh128c = &parsedLine->canonical.xxh128;
if (canonicalFromString(xxh128c->digest, sizeof(xxh128c->digest), hash_ptr, rev)
!= CanonicalFromString_ok) {
return ParseLine_invalidFormat;
}
parsedLine->xxhBits = 128;
break;
}
default:
return ParseLine_invalidFormat;
break;
}
/* note : skipping second separation character, which can be anything,
* allowing insertion of custom markers such as '*' */
parsedLine->filename = firstSpace + 2;
return ParseLine_ok;
}
/*!
* Parse xxHash checksum file.
*/
static void parseFile1(ParseFileArg* parseFileArg, int rev)
{
const char* const inFileName = parseFileArg->inFileName;
ParseFileReport* const report = &parseFileArg->report;
unsigned long lineNumber = 0;
memset(report, 0, sizeof(*report));
while (!report->quit) {
LineStatus lineStatus = LineStatus_hashFailed;
ParsedLine parsedLine;
memset(&parsedLine, 0, sizeof(parsedLine));
lineNumber++;
if (lineNumber == 0) {
/* This is unlikely happen, but md5sum.c has this error check. */
DISPLAY("%s: Error: Too many checksum lines\n", inFileName);
report->quit = 1;
break;
}
{ GetLineResult const getLineResult = getLine(&parseFileArg->lineBuf,
&parseFileArg->lineMax,
parseFileArg->inFile);
if (getLineResult != GetLine_ok) {
if (getLineResult == GetLine_eof) break;
switch (getLineResult)
{
case GetLine_ok:
case GetLine_eof:
/* These cases never happen. See above getLineResult related "if"s.
They exist just for make gcc's -Wswitch-enum happy. */
assert(0);
break;
default:
DISPLAY("%s:%lu: Error: Unknown error.\n", inFileName, lineNumber);
break;
case GetLine_exceedMaxLineLength:
DISPLAY("%s:%lu: Error: Line too long.\n", inFileName, lineNumber);
break;
case GetLine_outOfMemory:
DISPLAY("%s:%lu: Error: Out of memory.\n", inFileName, lineNumber);
break;
}
report->quit = 1;
break;
} }
if (parseLine(&parsedLine, parseFileArg->lineBuf, rev) != ParseLine_ok) {
report->nImproperlyFormattedLines++;
if (parseFileArg->warn) {
DISPLAY("%s:%lu: Error: Improperly formatted checksum line.\n",
inFileName, lineNumber);
}
continue;
}
report->nProperlyFormattedLines++;
do {
FILE* const fp = XXH_fopen(parsedLine.filename, "rb");
if (fp == NULL) {
lineStatus = LineStatus_failedToOpen;
break;
}
lineStatus = LineStatus_hashFailed;
switch (parsedLine.xxhBits)
{
case 32:
{ Multihash const xxh = XSUM_hashStream(fp, algo_xxh32, parseFileArg->blockBuf, parseFileArg->blockSize);
if (xxh.xxh32 == XXH32_hashFromCanonical(&parsedLine.canonical.xxh32)) {
lineStatus = LineStatus_hashOk;
} }
break;
case 64:
{ Multihash const xxh = XSUM_hashStream(fp, algo_xxh64, parseFileArg->blockBuf, parseFileArg->blockSize);
if (xxh.xxh64 == XXH64_hashFromCanonical(&parsedLine.canonical.xxh64)) {
lineStatus = LineStatus_hashOk;
} }
break;
case 128:
{ Multihash const xxh = XSUM_hashStream(fp, algo_xxh128, parseFileArg->blockBuf, parseFileArg->blockSize);
if (XXH128_isEqual(xxh.xxh128, XXH128_hashFromCanonical(&parsedLine.canonical.xxh128))) {
lineStatus = LineStatus_hashOk;
} }
break;
default:
break;
}
fclose(fp);
} while (0);
switch (lineStatus)
{
default:
DISPLAY("%s: Error: Unknown error.\n", inFileName);
report->quit = 1;
break;
case LineStatus_failedToOpen:
report->nOpenOrReadFailures++;
if (!parseFileArg->statusOnly) {
DISPLAYRESULT("%s:%lu: Could not open or read '%s': %s.\n",
inFileName, lineNumber, parsedLine.filename, strerror(errno));
}
break;
case LineStatus_hashOk:
case LineStatus_hashFailed:
{ int b = 1;
if (lineStatus == LineStatus_hashOk) {
/* If --quiet is specified, don't display "OK" */
if (parseFileArg->quiet) b = 0;
} else {
report->nMismatchedChecksums++;
}
if (b && !parseFileArg->statusOnly) {
DISPLAYRESULT("%s: %s\n", parsedLine.filename
, lineStatus == LineStatus_hashOk ? "OK" : "FAILED");
} }
break;
}
} /* while (!report->quit) */
}
/* Parse xxHash checksum file.
* Returns 1, if all procedures were succeeded.
* Returns 0, if any procedures was failed.
*
* If strictMode != 0, return error code if any line is invalid.
* If statusOnly != 0, don't generate any output.
* If warn != 0, print a warning message to stderr.
* If quiet != 0, suppress "OK" line.
*
* "All procedures are succeeded" means:
* - Checksum file contains at least one line and less than SIZE_T_MAX lines.
* - All files are properly opened and read.
* - All hash values match with its content.
* - (strict mode) All lines in checksum file are consistent and well formatted.
*/
static int checkFile(const char* inFileName,
const Display_endianess displayEndianess,
U32 strictMode,
U32 statusOnly,
U32 warn,
U32 quiet)
{
int result = 0;
FILE* inFile = NULL;
ParseFileArg parseFileArgBody;
ParseFileArg* const parseFileArg = &parseFileArgBody;
ParseFileReport* const report = &parseFileArg->report;
/* note: stdinName is special constant pointer. It is not a string. */
if (inFileName == stdinName) {
/*
* Note: Since we expect text input for xxhash -c mode,
* we don't set binary mode for stdin.
*/
inFileName = "stdin";
inFile = stdin;
} else {
inFile = XXH_fopen( inFileName, "rt" );
}
if (inFile == NULL) {
DISPLAY("Error: Could not open '%s': %s\n", inFileName, strerror(errno));
return 0;
}
parseFileArg->inFileName = inFileName;
parseFileArg->inFile = inFile;
parseFileArg->lineMax = DEFAULT_LINE_LENGTH;
parseFileArg->lineBuf = (char*) malloc((size_t)parseFileArg->lineMax);
parseFileArg->blockSize = 64 * 1024;
parseFileArg->blockBuf = (char*) malloc(parseFileArg->blockSize);
parseFileArg->strictMode = strictMode;
parseFileArg->statusOnly = statusOnly;
parseFileArg->warn = warn;
parseFileArg->quiet = quiet;
if ( (parseFileArg->lineBuf == NULL)
|| (parseFileArg->blockBuf == NULL) ) {
DISPLAY("Error: : memory allocation failed \n");
exit(1);
}
parseFile1(parseFileArg, displayEndianess != big_endian);
free(parseFileArg->blockBuf);
free(parseFileArg->lineBuf);
if (inFile != stdin) fclose(inFile);
/* Show error/warning messages. All messages are copied from md5sum.c
*/
if (report->nProperlyFormattedLines == 0) {
DISPLAY("%s: no properly formatted xxHash checksum lines found\n", inFileName);
} else if (!statusOnly) {
if (report->nImproperlyFormattedLines) {
DISPLAYRESULT("%lu %s improperly formatted\n"
, report->nImproperlyFormattedLines
, report->nImproperlyFormattedLines == 1 ? "line is" : "lines are");
}
if (report->nOpenOrReadFailures) {
DISPLAYRESULT("%lu listed %s could not be read\n"
, report->nOpenOrReadFailures
, report->nOpenOrReadFailures == 1 ? "file" : "files");
}
if (report->nMismatchedChecksums) {
DISPLAYRESULT("%lu computed %s did NOT match\n"
, report->nMismatchedChecksums
, report->nMismatchedChecksums == 1 ? "checksum" : "checksums");
} }
/* Result (exit) code logic is copied from
* gnu coreutils/src/md5sum.c digest_check() */
result = report->nProperlyFormattedLines != 0
&& report->nMismatchedChecksums == 0
&& report->nOpenOrReadFailures == 0
&& (!strictMode || report->nImproperlyFormattedLines == 0)
&& report->quit == 0;
return result;
}
static int checkFiles(const char*const* fnList, int fnTotal,
const Display_endianess displayEndianess,
U32 strictMode,
U32 statusOnly,
U32 warn,
U32 quiet)
{
int ok = 1;
/* Special case for stdinName "-",
* note: stdinName is not a string. It's special pointer. */
if (fnTotal==0) {
ok &= checkFile(stdinName, displayEndianess, strictMode, statusOnly, warn, quiet);
} else {
int fnNb;
for (fnNb=0; fnNb<fnTotal; fnNb++)
ok &= checkFile(fnList[fnNb], displayEndianess, strictMode, statusOnly, warn, quiet);
}
return ok ? 0 : 1;
}
/* ********************************************************
* Main
**********************************************************/
static int usage(const char* exename)
{
DISPLAY( WELCOME_MESSAGE(exename) );
DISPLAY( "Print or verify checksums using fast non-cryptographic algorithm xxHash \n\n" );
DISPLAY( "Usage: %s [options] [files] \n\n", exename);
DISPLAY( "When no filename provided or when '-' is provided, uses stdin as input. \n");
DISPLAY( "Options: \n");
DISPLAY( " -H# algorithm selection: 0,1,2 or 32,64,128 (default: %i) \n", (int)g_defaultAlgo);
DISPLAY( " -c, --check read xxHash checksum from [files] and check them \n");
DISPLAY( " -h, --help display a long help page about advanced options \n");
return 0;
}
static int usage_advanced(const char* exename)
{
usage(exename);
DISPLAY( "Advanced :\n");
DISPLAY( " -V, --version Display version information \n");
DISPLAY( " --tag Produce BSD-style checksum lines \n");
DISPLAY( " --little-endian Checksum values use little endian convention (default: big endian) \n");
DISPLAY( " -b Run benchmark \n");
DISPLAY( " -b# Bench only algorithm variant # \n");
DISPLAY( " -i# Number of times to run the benchmark (default: %u) \n", (unsigned)g_nbIterations);
DISPLAY( " -q, --quiet Don't display version header in benchmark mode \n");
DISPLAY( "\n");
DISPLAY( "The following four options are useful only when verifying checksums (-c): \n");
DISPLAY( " -q, --quiet Don't print OK for each successfully verified file \n");
DISPLAY( " --status Don't output anything, status code shows success \n");
DISPLAY( " --strict Exit non-zero for improperly formatted checksum lines \n");
DISPLAY( " --warn Warn about improperly formatted checksum lines \n");
return 0;
}
static int badusage(const char* exename)
{
DISPLAY("Wrong parameters\n\n");
usage(exename);
return 1;
}
static void errorOut(const char* msg)
{
DISPLAY("%s \n", msg); exit(1);
}
static const char* lastNameFromPath(const char* path)
{
const char* name = path;
if (strrchr(name, '/')) name = strrchr(name, '/') + 1;
if (strrchr(name, '\\')) name = strrchr(name, '\\') + 1; /* windows */
return name;
}
/*!
* readU32FromCharChecked():
* @return 0 if success, and store the result in *value.
* Allows and interprets K, KB, KiB, M, MB and MiB suffix.
* Will also modify `*stringPtr`, advancing it to position where it stopped reading.
* @return 1 if an overflow error occurs
*/
static int readU32FromCharChecked(const char** stringPtr, U32* value)
{
static const U32 max = (((U32)(-1)) / 10) - 1;
U32 result = 0;
while ((**stringPtr >='0') && (**stringPtr <='9')) {
if (result > max) return 1; /* overflow error */
result *= 10;
result += (U32)(**stringPtr - '0');
(*stringPtr)++ ;
}
if ((**stringPtr=='K') || (**stringPtr=='M')) {
U32 const maxK = ((U32)(-1)) >> 10;
if (result > maxK) return 1; /* overflow error */
result <<= 10;
if (**stringPtr=='M') {
if (result > maxK) return 1; /* overflow error */
result <<= 10;
}
(*stringPtr)++; /* skip `K` or `M` */
if (**stringPtr=='i') (*stringPtr)++;
if (**stringPtr=='B') (*stringPtr)++;
}
*value = result;
return 0;
}
/*!
* readU32FromChar():
* @return: unsigned integer value read from input in `char` format.
* allows and interprets K, KB, KiB, M, MB and MiB suffix.
* Will also modify `*stringPtr`, advancing it to position where it stopped reading.
* Note: function will exit() program if digit sequence overflows
*/
static U32 readU32FromChar(const char** stringPtr) {
U32 result;
if (readU32FromCharChecked(stringPtr, &result)) {
static const char errorMsg[] = "Error: numeric value too large";
errorOut(errorMsg);
}
return result;
}
static int XXH_main(int argc, const char* const* argv)
{
int i, filenamesStart = 0;
const char* const exename = lastNameFromPath(argv[0]);
U32 benchmarkMode = 0;
U32 fileCheckMode = 0;
U32 strictMode = 0;
U32 statusOnly = 0;
U32 warn = 0;
int explicitStdin = 0;
U32 selectBenchIDs= 0; /* 0 == use default k_testIDs_default, kBenchAll == bench all */
static const U32 kBenchAll = 99;
size_t keySize = XXH_DEFAULT_SAMPLE_SIZE;
AlgoSelected algo = g_defaultAlgo;
Display_endianess displayEndianess = big_endian;
Display_convention convention = display_gnu;
/* special case: xxhNNsum default to NN bits checksum */
if (strstr(exename, "xxh32sum") != NULL) algo = g_defaultAlgo = algo_xxh32;
if (strstr(exename, "xxh64sum") != NULL) algo = g_defaultAlgo = algo_xxh64;
if (strstr(exename, "xxh128sum") != NULL) algo = g_defaultAlgo = algo_xxh128;
for (i=1; i<argc; i++) {
const char* argument = argv[i];
assert(argument != NULL);
if (!strcmp(argument, "--check")) { fileCheckMode = 1; continue; }
if (!strcmp(argument, "--benchmark-all")) { benchmarkMode = 1; selectBenchIDs = kBenchAll; continue; }
if (!strcmp(argument, "--bench-all")) { benchmarkMode = 1; selectBenchIDs = kBenchAll; continue; }
if (!strcmp(argument, "--quiet")) { g_displayLevel--; continue; }
if (!strcmp(argument, "--little-endian")) { displayEndianess = little_endian; continue; }
if (!strcmp(argument, "--strict")) { strictMode = 1; continue; }
if (!strcmp(argument, "--status")) { statusOnly = 1; continue; }
if (!strcmp(argument, "--warn")) { warn = 1; continue; }
if (!strcmp(argument, "--help")) { return usage_advanced(exename); }
if (!strcmp(argument, "--version")) { DISPLAY(FULL_WELCOME_MESSAGE(exename)); BMK_sanityCheck(); return 0; }
if (!strcmp(argument, "--tag")) { convention = display_bsd; continue; }
if (!strcmp(argument, "--")) {
if (filenamesStart==0 && i!=argc-1) filenamesStart=i+1; /* only supports a continuous list of filenames */
break; /* treat rest of arguments as strictly file names */
}
if (*argument != '-') {
if (filenamesStart==0) filenamesStart=i; /* only supports a continuous list of filenames */
break; /* treat rest of arguments as strictly file names */
}
/* command selection */
argument++; /* note: *argument=='-' */
if (*argument == 0) explicitStdin = 1;
while (*argument != 0) {
switch(*argument)
{
/* Display version */
case 'V':
DISPLAY(FULL_WELCOME_MESSAGE(exename)); return 0;
/* Display help on usage */
case 'h':
return usage_advanced(exename);
/* select hash algorithm */
case 'H': argument++;
switch(readU32FromChar(&argument)) {
case 0 :
case 32: algo = algo_xxh32; break;
case 1 :
case 64: algo = algo_xxh64; break;
case 2 :
case 128: algo = algo_xxh128; break;
default:
return badusage(exename);
}
break;
/* File check mode */
case 'c':
fileCheckMode=1;
argument++;
break;
/* Warning mode (file check mode only, alias of "--warning") */
case 'w':
warn=1;
argument++;
break;
/* Trigger benchmark mode */
case 'b':
argument++;
benchmarkMode = 1;
do {
if (*argument == ',') argument++;
selectBenchIDs = readU32FromChar(&argument); /* select one specific test */
if (selectBenchIDs < NB_TESTFUNC) {
g_testIDs[selectBenchIDs] = 1;
} else
selectBenchIDs = kBenchAll;
} while (*argument == ',');
break;
/* Modify Nb Iterations (benchmark only) */
case 'i':
argument++;
g_nbIterations = readU32FromChar(&argument);
break;
/* Modify Block size (benchmark only) */
case 'B':
argument++;
keySize = readU32FromChar(&argument);
break;
/* Modify verbosity of benchmark output (hidden option) */
case 'q':
argument++;
g_displayLevel--;
break;
default:
return badusage(exename);
}
}
} /* for(i=1; i<argc; i++) */
/* Check benchmark mode */
if (benchmarkMode) {
DISPLAYLEVEL(2, FULL_WELCOME_MESSAGE(exename) );
BMK_sanityCheck();
if (selectBenchIDs == 0) memcpy(g_testIDs, k_testIDs_default, sizeof(g_testIDs));
if (selectBenchIDs == kBenchAll) memset(g_testIDs, 1, sizeof(g_testIDs));
if (filenamesStart==0) return BMK_benchInternal(keySize);
return BMK_benchFiles(argv+filenamesStart, argc-filenamesStart);
}
/* Check if input is defined as console; trigger an error in this case */
if ( (filenamesStart==0) && IS_CONSOLE(stdin) && !explicitStdin)
return badusage(exename);
if (filenamesStart==0) filenamesStart = argc;
if (fileCheckMode) {
return checkFiles(argv+filenamesStart, argc-filenamesStart,
displayEndianess, strictMode, statusOnly, warn, (g_displayLevel < 2) /*quiet*/);
} else {
return XSUM_hashFiles(argv+filenamesStart, argc-filenamesStart, algo, displayEndianess, convention);
}
}
/* Windows main wrapper which properly handles UTF-8 command line arguments. */
#ifdef _WIN32
/* Converts a UTF-16 argv to UTF-8. */
static char** convert_argv(int argc, const wchar_t* const utf16_argv[])
{
char** const utf8_argv = (char**)malloc((size_t)(argc + 1) * sizeof(char*));
if (utf8_argv != NULL) {
int i;
for (i = 0; i < argc; i++) {
utf8_argv[i] = utf16_to_utf8(utf16_argv[i]);
}
utf8_argv[argc] = NULL;
}
return utf8_argv;
}
/* Frees arguments returned by convert_argv */
static void free_argv(int argc, char** argv)
{
int i;
if (argv == NULL) {
return;
}
for (i = 0; i < argc; i++) {
free(argv[i]);
}
free(argv);
}
/*
* On Windows, main's argv parameter is useless. Instead of UTF-8, you get ANSI
* encoding, and any unknown characters will show up as mojibake.
*
* While this doesn't affect most programs, what does happen is that we can't
* open any files with Unicode filenames.
*
* We instead convert wmain's arguments to UTF-8, preserving Unicode arguments.
*
* This function is wrapped by `__wgetmainargs()` and `main()` below on MinGW
* with Unicode disabled, but if possible, we try to use `wmain()`.
*/
static int XXH_wmain(int argc, const wchar_t* const utf16_argv[])
{
/* Convert the UTF-16 arguments to UTF-8. */
char** utf8_argv = convert_argv(argc, utf16_argv);
if (utf8_argv == NULL) {
/* An unfortunate but incredibly unlikely error, */
fprintf(stderr, "Error converting command line arguments!\n");
return 1;
} else {
int ret;
/*
* MinGW's terminal uses full block buffering for stderr.
*
* This is nonstandard behavior and causes text to not display until
* the buffer fills.
*
* `setvbuf()` can easily correct this to make text display instantly.
*/
setvbuf(stderr, NULL, _IONBF, 0);
/* Call our real main function */
ret = XXH_main(argc, (const char* const *) utf8_argv);
/* Cleanup */
free_argv(argc, utf8_argv);
return ret;
}
}
#if defined(_MSC_VER) /* MSVC always accepts wmain */ \
|| defined(_UNICODE) || defined(UNICODE) /* defined with -municode on MinGW-w64 */
/* Preferred: Use the real `wmain()`. */
#if defined(__cplusplus)
extern "C"
#endif
int wmain(int argc, const wchar_t* utf16_argv[])
{
return XXH_wmain(argc, utf16_argv);
}
#else /* Non-Unicode MinGW */
/*
* Wrap `XXH_wmain()` using `main()` and `__wgetmainargs()` on MinGW without
* Unicode support.
*
* `__wgetmainargs()` is used in the CRT startup to retrieve the arguments for
* `wmain()`, so we use it on MinGW to emulate `wmain()`.
*
* It is an internal function and not declared in any public headers, so we
* have to declare it manually.
*
* An alternative that doesn't mess with internal APIs is `GetCommandLineW()`
* with `CommandLineToArgvW()`, but the former doesn't expand wildcards and the
* latter requires linking to Shell32.dll and its numerous dependencies.
*
* This method keeps our dependencies to kernel32.dll and the CRT.
*
* https://docs.microsoft.com/en-us/cpp/c-runtime-library/getmainargs-wgetmainargs?view=vs-2019
*/
typedef struct {
int newmode;
} _startupinfo;
#ifdef __cplusplus
extern "C"
#endif
int __cdecl __wgetmainargs(
int* Argc,
wchar_t*** Argv,
wchar_t*** Env,
int DoWildCard,
_startupinfo* StartInfo
);
int main(int ansi_argc, const char* ansi_argv[])
{
int utf16_argc;
wchar_t** utf16_argv;
wchar_t** utf16_envp; /* Unused but required */
_startupinfo startinfo = {0}; /* 0 == don't change new mode */
/* Get wmain's UTF-16 arguments. Make sure we expand wildcards. */
if (__wgetmainargs(&utf16_argc, &utf16_argv, &utf16_envp, 1, &startinfo) < 0)
/* In the very unlikely case of an error, use the ANSI arguments. */
return XXH_main(ansi_argc, ansi_argv);
/* Call XXH_wmain with our UTF-16 arguments */
return XXH_wmain(utf16_argc, (const wchar_t* const *)utf16_argv);
}
#endif /* Non-Unicode MinGW */
#else /* Not Windows */
/* Wrap main normally on non-Windows platforms. */
int main(int argc, const char* argv[])
{
return XXH_main(argc, argv);
}
#endif /* !Windows */