| /* |
| * Copyright (c) 1990 The Regents of the University of California. |
| * All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * Chris Torek. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| /* |
| FUNCTION |
| <<vfprintf>>, <<vprintf>>, <<vsprintf>>, <<vsnprintf>>, <<vasprintf>>, <<vasnprintf>>---format argument list |
| |
| INDEX |
| vfprintf |
| INDEX |
| _vfprintf_r |
| INDEX |
| vprintf |
| INDEX |
| _vprintf_r |
| INDEX |
| vsprintf |
| INDEX |
| _vsprintf_r |
| INDEX |
| vsnprintf |
| INDEX |
| _vsnprintf_r |
| INDEX |
| vasprintf |
| INDEX |
| _vasprintf_r |
| INDEX |
| vasnprintf |
| INDEX |
| _vasnprintf_r |
| |
| ANSI_SYNOPSIS |
| #include <stdio.h> |
| #include <stdarg.h> |
| int vprintf(const char *<[fmt]>, va_list <[list]>); |
| int vfprintf(FILE *<[fp]>, const char *<[fmt]>, va_list <[list]>); |
| int vsprintf(char *<[str]>, const char *<[fmt]>, va_list <[list]>); |
| int vsnprintf(char *<[str]>, size_t <[size]>, const char *<[fmt]>, |
| va_list <[list]>); |
| int vasprintf(char **<[strp]>, const char *<[fmt]>, va_list <[list]>); |
| char *vasnprintf(char *<[str]>, size_t *<[size]>, const char *<[fmt]>, |
| va_list <[list]>); |
| |
| int _vprintf_r(struct _reent *<[reent]>, const char *<[fmt]>, |
| va_list <[list]>); |
| int _vfprintf_r(struct _reent *<[reent]>, FILE *<[fp]>, |
| const char *<[fmt]>, va_list <[list]>); |
| int _vsprintf_r(struct _reent *<[reent]>, char *<[str]>, |
| const char *<[fmt]>, va_list <[list]>); |
| int _vasprintf_r(struct _reent *<[reent]>, char **<[str]>, |
| const char *<[fmt]>, va_list <[list]>); |
| int _vsnprintf_r(struct _reent *<[reent]>, char *<[str]>, |
| size_t <[size]>, const char *<[fmt]>, va_list <[list]>); |
| char *_vasnprintf_r(struct _reent *<[reent]>, char *<[str]>, |
| size_t *<[size]>, const char *<[fmt]>, va_list <[list]>); |
| |
| DESCRIPTION |
| <<vprintf>>, <<vfprintf>>, <<vasprintf>>, <<vsprintf>>, <<vsnprintf>>, |
| and <<vasnprintf>> are (respectively) variants of <<printf>>, |
| <<fprintf>>, <<asprintf>>, <<sprintf>>, <<snprintf>>, and |
| <<asnprintf>>. They differ only in allowing their caller to pass the |
| variable argument list as a <<va_list>> object (initialized by |
| <<va_start>>) rather than directly accepting a variable number of |
| arguments. The caller is responsible for calling <<va_end>>. |
| |
| <<_vprintf_r>>, <<_vfprintf_r>>, <<_vasprintf_r>>, <<_vsprintf_r>>, |
| <<_vsnprintf_r>>, and <<_vasnprintf_r>> are reentrant versions of the |
| above. |
| |
| RETURNS |
| The return values are consistent with the corresponding functions. |
| |
| PORTABILITY |
| ANSI C requires <<vprintf>>, <<vfprintf>>, <<vsprintf>>, and |
| <<vsnprintf>>. The remaining functions are newlib extensions. |
| |
| Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>, |
| <<lseek>>, <<read>>, <<sbrk>>, <<write>>. |
| */ |
| |
| #if defined(LIBC_SCCS) && !defined(lint) |
| /*static char *sccsid = "from: @(#)vfprintf.c 5.50 (Berkeley) 12/16/92";*/ |
| static char *rcsid = "$Id: vfprintf.c,v 1.43 2002/08/13 02:40:06 fitzsim Exp $"; |
| #endif /* LIBC_SCCS and not lint */ |
| |
| /* |
| * Actual printf innards. |
| * |
| * This code is large and complicated... |
| */ |
| #include <newlib.h> |
| |
| #ifdef INTEGER_ONLY |
| # define VFPRINTF vfiprintf |
| # ifdef STRING_ONLY |
| # define _VFPRINTF_R _svfiprintf_r |
| # else |
| # define _VFPRINTF_R _vfiprintf_r |
| # endif |
| #else |
| # define VFPRINTF vfprintf |
| # ifdef STRING_ONLY |
| # define _VFPRINTF_R _svfprintf_r |
| # else |
| # define _VFPRINTF_R _vfprintf_r |
| # endif |
| # ifndef NO_FLOATING_POINT |
| # define FLOATING_POINT |
| # endif |
| #endif |
| |
| #define _NO_POS_ARGS |
| #ifdef _WANT_IO_POS_ARGS |
| # undef _NO_POS_ARGS |
| #endif |
| |
| #include <_ansi.h> |
| #include <reent.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <limits.h> |
| #include <stdint.h> |
| #include <wchar.h> |
| #include <sys/lock.h> |
| #include <stdarg.h> |
| #include "local.h" |
| #include "../stdlib/local.h" |
| #include "fvwrite.h" |
| #include "vfieeefp.h" |
| |
| /* Currently a test is made to see if long double processing is warranted. |
| This could be changed in the future should the _ldtoa_r code be |
| preferred over _dtoa_r. */ |
| #define _NO_LONGDBL |
| #if defined _WANT_IO_LONG_DOUBLE && (LDBL_MANT_DIG > DBL_MANT_DIG) |
| #undef _NO_LONGDBL |
| #endif |
| |
| #define _NO_LONGLONG |
| #if defined _WANT_IO_LONG_LONG \ |
| && (defined __GNUC__ || __STDC_VERSION__ >= 199901L) |
| # undef _NO_LONGLONG |
| #endif |
| |
| #ifdef STRING_ONLY |
| #define __SPRINT __ssprint_r |
| #else |
| #define __SPRINT __sprint_r |
| #endif |
| |
| /* The __sprint_r/__ssprint_r functions are shared between all versions of |
| vfprintf and vfwprintf. They must only be defined once, which we do in |
| the INTEGER_ONLY versions here. */ |
| #ifdef STRING_ONLY |
| #ifdef INTEGER_ONLY |
| int |
| _DEFUN(__ssprint_r, (ptr, fp, uio), |
| struct _reent *ptr _AND |
| FILE *fp _AND |
| register struct __suio *uio) |
| { |
| register size_t len; |
| register int w; |
| register struct __siov *iov; |
| register _CONST char *p = NULL; |
| |
| iov = uio->uio_iov; |
| len = 0; |
| |
| if (uio->uio_resid == 0) { |
| uio->uio_iovcnt = 0; |
| return (0); |
| } |
| |
| do { |
| while (len == 0) { |
| p = iov->iov_base; |
| len = iov->iov_len; |
| iov++; |
| } |
| w = fp->_w; |
| if (len >= w && fp->_flags & (__SMBF | __SOPT)) { |
| /* must be asprintf family */ |
| unsigned char *str; |
| int curpos = (fp->_p - fp->_bf._base); |
| /* Choose a geometric growth factor to avoid |
| * quadratic realloc behavior, but use a rate less |
| * than (1+sqrt(5))/2 to accomodate malloc |
| * overhead. asprintf EXPECTS us to overallocate, so |
| * that it can add a trailing \0 without |
| * reallocating. The new allocation should thus be |
| * max(prev_size*1.5, curpos+len+1). */ |
| int newsize = fp->_bf._size * 3 / 2; |
| if (newsize < curpos + len + 1) |
| newsize = curpos + len + 1; |
| if (fp->_flags & __SOPT) |
| { |
| /* asnprintf leaves original buffer alone. */ |
| str = (unsigned char *)_malloc_r (ptr, newsize); |
| if (!str) |
| { |
| ptr->_errno = ENOMEM; |
| goto err; |
| } |
| memcpy (str, fp->_bf._base, curpos); |
| fp->_flags = (fp->_flags & ~__SOPT) | __SMBF; |
| } |
| else |
| { |
| str = (unsigned char *)_realloc_r (ptr, fp->_bf._base, |
| newsize); |
| if (!str) { |
| /* Free unneeded buffer. */ |
| _free_r (ptr, fp->_bf._base); |
| /* Ensure correct errno, even if free |
| * changed it. */ |
| ptr->_errno = ENOMEM; |
| goto err; |
| } |
| } |
| fp->_bf._base = str; |
| fp->_p = str + curpos; |
| fp->_bf._size = newsize; |
| w = len; |
| fp->_w = newsize - curpos; |
| } |
| if (len < w) |
| w = len; |
| (void)memmove ((_PTR) fp->_p, (_PTR) p, (size_t) (w)); |
| fp->_w -= w; |
| fp->_p += w; |
| w = len; /* pretend we copied all */ |
| p += w; |
| len -= w; |
| } while ((uio->uio_resid -= w) != 0); |
| |
| uio->uio_resid = 0; |
| uio->uio_iovcnt = 0; |
| return 0; |
| |
| err: |
| fp->_flags |= __SERR; |
| uio->uio_resid = 0; |
| uio->uio_iovcnt = 0; |
| return EOF; |
| } |
| #else /* !INTEGER_ONLY */ |
| int __ssprint_r (struct _reent *, FILE *, register struct __suio *); |
| #endif /* !INTEGER_ONLY */ |
| |
| #else /* !STRING_ONLY */ |
| #ifdef INTEGER_ONLY |
| /* |
| * Flush out all the vectors defined by the given uio, |
| * then reset it so that it can be reused. |
| */ |
| int |
| _DEFUN(__sprint_r, (ptr, fp, uio), |
| struct _reent *ptr _AND |
| FILE *fp _AND |
| register struct __suio *uio) |
| { |
| register int err = 0; |
| |
| if (uio->uio_resid == 0) { |
| uio->uio_iovcnt = 0; |
| return (0); |
| } |
| if (fp->_flags2 & __SWID) { |
| struct __siov *iov; |
| wchar_t *p; |
| int i, len; |
| |
| iov = uio->uio_iov; |
| for (; uio->uio_resid != 0; |
| uio->uio_resid -= len * sizeof (wchar_t), iov++) { |
| p = (wchar_t *) iov->iov_base; |
| len = iov->iov_len / sizeof (wchar_t); |
| for (i = 0; i < len; i++) { |
| if (_fputwc_r (ptr, p[i], fp) == WEOF) { |
| err = -1; |
| goto out; |
| } |
| } |
| } |
| } else |
| err = __sfvwrite_r(ptr, fp, uio); |
| out: |
| uio->uio_resid = 0; |
| uio->uio_iovcnt = 0; |
| return (err); |
| } |
| #else /* !INTEGER_ONLY */ |
| int __sprint_r (struct _reent *, FILE *, register struct __suio *); |
| #endif /* !INTEGER_ONLY */ |
| |
| /* |
| * Helper function for `fprintf to unbuffered unix file': creates a |
| * temporary buffer. We only work on write-only files; this avoids |
| * worries about ungetc buffers and so forth. |
| */ |
| static int |
| _DEFUN(__sbprintf, (rptr, fp, fmt, ap), |
| struct _reent *rptr _AND |
| register FILE *fp _AND |
| _CONST char *fmt _AND |
| va_list ap) |
| { |
| int ret; |
| FILE fake; |
| unsigned char buf[BUFSIZ]; |
| |
| /* copy the important variables */ |
| fake._flags = fp->_flags & ~__SNBF; |
| fake._flags2 = fp->_flags2; |
| fake._file = fp->_file; |
| fake._cookie = fp->_cookie; |
| fake._write = fp->_write; |
| |
| /* set up the buffer */ |
| fake._bf._base = fake._p = buf; |
| fake._bf._size = fake._w = sizeof (buf); |
| fake._lbfsize = 0; /* not actually used, but Just In Case */ |
| #ifndef __SINGLE_THREAD__ |
| __lock_init_recursive (fake._lock); |
| #endif |
| |
| /* do the work, then copy any error status */ |
| ret = _VFPRINTF_R (rptr, &fake, fmt, ap); |
| if (ret >= 0 && _fflush_r (rptr, &fake)) |
| ret = EOF; |
| if (fake._flags & __SERR) |
| fp->_flags |= __SERR; |
| |
| #ifndef __SINGLE_THREAD__ |
| __lock_close_recursive (fake._lock); |
| #endif |
| return (ret); |
| } |
| #endif /* !STRING_ONLY */ |
| |
| |
| #ifdef FLOATING_POINT |
| # include <locale.h> |
| # include <math.h> |
| |
| /* For %La, an exponent of 15 bits occupies the exponent character, a |
| sign, and up to 5 digits. */ |
| # define MAXEXPLEN 7 |
| # define DEFPREC 6 |
| |
| # ifdef _NO_LONGDBL |
| |
| extern char *_dtoa_r _PARAMS((struct _reent *, double, int, |
| int, int *, int *, char **)); |
| |
| # define _PRINTF_FLOAT_TYPE double |
| # define _DTOA_R _dtoa_r |
| # define FREXP frexp |
| |
| # else /* !_NO_LONGDBL */ |
| |
| extern char *_ldtoa_r _PARAMS((struct _reent *, _LONG_DOUBLE, int, |
| int, int *, int *, char **)); |
| |
| extern int _EXFUN(_ldcheck,(_LONG_DOUBLE *)); |
| |
| # define _PRINTF_FLOAT_TYPE _LONG_DOUBLE |
| # define _DTOA_R _ldtoa_r |
| /* FIXME - frexpl is not yet supported; and cvt infloops if (double)f |
| converts a finite value into infinity. */ |
| /* # define FREXP frexpl */ |
| # define FREXP(f,e) ((_LONG_DOUBLE) frexp ((double)f, e)) |
| # endif /* !_NO_LONGDBL */ |
| |
| static char *cvt(struct _reent *, _PRINTF_FLOAT_TYPE, int, int, char *, int *, |
| int, int *, char *); |
| |
| static int exponent(char *, int, int); |
| |
| #endif /* FLOATING_POINT */ |
| |
| /* BUF must be big enough for the maximum %#llo (assuming long long is |
| at most 64 bits, this would be 23 characters), the maximum |
| multibyte character %C, and the maximum default precision of %La |
| (assuming long double is at most 128 bits with 113 bits of |
| mantissa, this would be 29 characters). %e, %f, and %g use |
| reentrant storage shared with mprec. All other formats that use |
| buf get by with fewer characters. Making BUF slightly bigger |
| reduces the need for malloc in %.*a and %S, when large precision or |
| long strings are processed. */ |
| #define BUF 40 |
| #if defined _MB_CAPABLE && MB_LEN_MAX > BUF |
| # undef BUF |
| # define BUF MB_LEN_MAX |
| #endif |
| |
| #ifndef _NO_LONGLONG |
| # define quad_t long long |
| # define u_quad_t unsigned long long |
| #else |
| # define quad_t long |
| # define u_quad_t unsigned long |
| #endif |
| |
| typedef quad_t * quad_ptr_t; |
| typedef _PTR void_ptr_t; |
| typedef char * char_ptr_t; |
| typedef long * long_ptr_t; |
| typedef int * int_ptr_t; |
| typedef short * short_ptr_t; |
| |
| #ifndef _NO_POS_ARGS |
| # ifdef NL_ARGMAX |
| # define MAX_POS_ARGS NL_ARGMAX |
| # else |
| # define MAX_POS_ARGS 32 |
| # endif |
| |
| union arg_val |
| { |
| int val_int; |
| u_int val_u_int; |
| long val_long; |
| u_long val_u_long; |
| float val_float; |
| double val_double; |
| _LONG_DOUBLE val__LONG_DOUBLE; |
| int_ptr_t val_int_ptr_t; |
| short_ptr_t val_short_ptr_t; |
| long_ptr_t val_long_ptr_t; |
| char_ptr_t val_char_ptr_t; |
| quad_ptr_t val_quad_ptr_t; |
| void_ptr_t val_void_ptr_t; |
| quad_t val_quad_t; |
| u_quad_t val_u_quad_t; |
| wint_t val_wint_t; |
| }; |
| |
| static union arg_val * |
| _EXFUN(get_arg, (struct _reent *data, int n, char *fmt, |
| va_list *ap, int *numargs, union arg_val *args, |
| int *arg_type, char **last_fmt)); |
| #endif /* !_NO_POS_ARGS */ |
| |
| /* |
| * Macros for converting digits to letters and vice versa |
| */ |
| #define to_digit(c) ((c) - '0') |
| #define is_digit(c) ((unsigned)to_digit (c) <= 9) |
| #define to_char(n) ((n) + '0') |
| |
| /* |
| * Flags used during conversion. |
| */ |
| #define ALT 0x001 /* alternate form */ |
| #define HEXPREFIX 0x002 /* add 0x or 0X prefix */ |
| #define LADJUST 0x004 /* left adjustment */ |
| #define LONGDBL 0x008 /* long double */ |
| #define LONGINT 0x010 /* long integer */ |
| #ifndef _NO_LONGLONG |
| # define QUADINT 0x020 /* quad integer */ |
| #else /* ifdef _NO_LONGLONG, make QUADINT equivalent to LONGINT, so |
| that %lld behaves the same as %ld, not as %d, as expected if: |
| sizeof (long long) = sizeof long > sizeof int */ |
| # define QUADINT LONGINT |
| #endif |
| #define SHORTINT 0x040 /* short integer */ |
| #define ZEROPAD 0x080 /* zero (as opposed to blank) pad */ |
| #define FPT 0x100 /* Floating point number */ |
| #ifdef _WANT_IO_C99_FORMATS |
| # define CHARINT 0x200 /* char as integer */ |
| #else /* define as 0, to make SARG and UARG occupy fewer instructions */ |
| # define CHARINT 0 |
| #endif |
| |
| int _EXFUN(_VFPRINTF_R, (struct _reent *, FILE *, _CONST char *, va_list)); |
| |
| #ifndef STRING_ONLY |
| int |
| _DEFUN(VFPRINTF, (fp, fmt0, ap), |
| FILE * fp _AND |
| _CONST char *fmt0 _AND |
| va_list ap) |
| { |
| int result; |
| result = _VFPRINTF_R (_REENT, fp, fmt0, ap); |
| return result; |
| } |
| #endif /* STRING_ONLY */ |
| |
| int |
| _DEFUN(_VFPRINTF_R, (data, fp, fmt0, ap), |
| struct _reent *data _AND |
| FILE * fp _AND |
| _CONST char *fmt0 _AND |
| va_list ap) |
| { |
| register char *fmt; /* format string */ |
| register int ch; /* character from fmt */ |
| register int n, m; /* handy integers (short term usage) */ |
| register char *cp; /* handy char pointer (short term usage) */ |
| register struct __siov *iovp;/* for PRINT macro */ |
| register int flags; /* flags as above */ |
| char *fmt_anchor; /* current format spec being processed */ |
| #ifndef _NO_POS_ARGS |
| int N; /* arg number */ |
| int arg_index; /* index into args processed directly */ |
| int numargs; /* number of varargs read */ |
| char *saved_fmt; /* saved fmt pointer */ |
| union arg_val args[MAX_POS_ARGS]; |
| int arg_type[MAX_POS_ARGS]; |
| int is_pos_arg; /* is current format positional? */ |
| int old_is_pos_arg; /* is current format positional? */ |
| #endif |
| int ret; /* return value accumulator */ |
| int width; /* width from format (%8d), or 0 */ |
| int prec; /* precision from format (%.3d), or -1 */ |
| char sign; /* sign prefix (' ', '+', '-', or \0) */ |
| #ifdef FLOATING_POINT |
| char *decimal_point = _localeconv_r (data)->decimal_point; |
| size_t decp_len = strlen (decimal_point); |
| char softsign; /* temporary negative sign for floats */ |
| union { int i; _PRINTF_FLOAT_TYPE fp; } _double_ = {0}; |
| # define _fpvalue (_double_.fp) |
| int expt; /* integer value of exponent */ |
| int expsize = 0; /* character count for expstr */ |
| int ndig = 0; /* actual number of digits returned by cvt */ |
| char expstr[MAXEXPLEN]; /* buffer for exponent string */ |
| #endif /* FLOATING_POINT */ |
| u_quad_t _uquad; /* integer arguments %[diouxX] */ |
| enum { OCT, DEC, HEX } base;/* base for [diouxX] conversion */ |
| int dprec; /* a copy of prec if [diouxX], 0 otherwise */ |
| int realsz; /* field size expanded by dprec */ |
| int size; /* size of converted field or string */ |
| char *xdigs = NULL; /* digits for [xX] conversion */ |
| #define NIOV 8 |
| struct __suio uio; /* output information: summary */ |
| struct __siov iov[NIOV];/* ... and individual io vectors */ |
| char buf[BUF]; /* space for %c, %S, %[diouxX], %[aA] */ |
| char ox[2]; /* space for 0x hex-prefix */ |
| #ifdef _MB_CAPABLE |
| wchar_t wc; |
| mbstate_t state; /* mbtowc calls from library must not change state */ |
| #endif |
| char *malloc_buf = NULL;/* handy pointer for malloced buffers */ |
| |
| /* |
| * Choose PADSIZE to trade efficiency vs. size. If larger printf |
| * fields occur frequently, increase PADSIZE and make the initialisers |
| * below longer. |
| */ |
| #define PADSIZE 16 /* pad chunk size */ |
| static _CONST char blanks[PADSIZE] = |
| {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; |
| static _CONST char zeroes[PADSIZE] = |
| {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; |
| |
| #ifdef _MB_CAPABLE |
| memset (&state, '\0', sizeof (state)); |
| #endif |
| /* |
| * BEWARE, these `goto error' on error, and PAD uses `n'. |
| */ |
| #define PRINT(ptr, len) { \ |
| iovp->iov_base = (ptr); \ |
| iovp->iov_len = (len); \ |
| uio.uio_resid += (len); \ |
| iovp++; \ |
| if (++uio.uio_iovcnt >= NIOV) { \ |
| if (__SPRINT(data, fp, &uio)) \ |
| goto error; \ |
| iovp = iov; \ |
| } \ |
| } |
| #define PAD(howmany, with) { \ |
| if ((n = (howmany)) > 0) { \ |
| while (n > PADSIZE) { \ |
| PRINT (with, PADSIZE); \ |
| n -= PADSIZE; \ |
| } \ |
| PRINT (with, n); \ |
| } \ |
| } |
| #define FLUSH() { \ |
| if (uio.uio_resid && __SPRINT(data, fp, &uio)) \ |
| goto error; \ |
| uio.uio_iovcnt = 0; \ |
| iovp = iov; \ |
| } |
| |
| /* Macros to support positional arguments */ |
| #ifndef _NO_POS_ARGS |
| # define GET_ARG(n, ap, type) \ |
| (is_pos_arg \ |
| ? (n < numargs \ |
| ? args[n].val_##type \ |
| : get_arg (data, n, fmt_anchor, &ap, &numargs, args, \ |
| arg_type, &saved_fmt)->val_##type) \ |
| : (arg_index++ < numargs \ |
| ? args[n].val_##type \ |
| : (numargs < MAX_POS_ARGS \ |
| ? args[numargs++].val_##type = va_arg (ap, type) \ |
| : va_arg (ap, type)))) |
| #else |
| # define GET_ARG(n, ap, type) (va_arg (ap, type)) |
| #endif |
| |
| /* |
| * To extend shorts properly, we need both signed and unsigned |
| * argument extraction methods. |
| */ |
| #ifndef _NO_LONGLONG |
| #define SARG() \ |
| (flags&QUADINT ? GET_ARG (N, ap, quad_t) : \ |
| flags&LONGINT ? GET_ARG (N, ap, long) : \ |
| flags&SHORTINT ? (long)(short)GET_ARG (N, ap, int) : \ |
| flags&CHARINT ? (long)(signed char)GET_ARG (N, ap, int) : \ |
| (long)GET_ARG (N, ap, int)) |
| #define UARG() \ |
| (flags&QUADINT ? GET_ARG (N, ap, u_quad_t) : \ |
| flags&LONGINT ? GET_ARG (N, ap, u_long) : \ |
| flags&SHORTINT ? (u_long)(u_short)GET_ARG (N, ap, int) : \ |
| flags&CHARINT ? (u_long)(unsigned char)GET_ARG (N, ap, int) : \ |
| (u_long)GET_ARG (N, ap, u_int)) |
| #else |
| #define SARG() \ |
| (flags&LONGINT ? GET_ARG (N, ap, long) : \ |
| flags&SHORTINT ? (long)(short)GET_ARG (N, ap, int) : \ |
| flags&CHARINT ? (long)(signed char)GET_ARG (N, ap, int) : \ |
| (long)GET_ARG (N, ap, int)) |
| #define UARG() \ |
| (flags&LONGINT ? GET_ARG (N, ap, u_long) : \ |
| flags&SHORTINT ? (u_long)(u_short)GET_ARG (N, ap, int) : \ |
| flags&CHARINT ? (u_long)(unsigned char)GET_ARG (N, ap, int) : \ |
| (u_long)GET_ARG (N, ap, u_int)) |
| #endif |
| |
| #ifndef STRING_ONLY |
| /* Initialize std streams if not dealing with sprintf family. */ |
| CHECK_INIT (data, fp); |
| _flockfile (fp); |
| |
| ORIENT(fp, -1); |
| |
| /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */ |
| if (cantwrite (data, fp)) { |
| _funlockfile (fp); |
| return (EOF); |
| } |
| |
| /* optimise fprintf(stderr) (and other unbuffered Unix files) */ |
| if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) && |
| fp->_file >= 0) { |
| _funlockfile (fp); |
| return (__sbprintf (data, fp, fmt0, ap)); |
| } |
| #else /* STRING_ONLY */ |
| /* Create initial buffer if we are called by asprintf family. */ |
| if (fp->_flags & __SMBF && !fp->_bf._base) |
| { |
| fp->_bf._base = fp->_p = _malloc_r (data, 64); |
| if (!fp->_p) |
| { |
| data->_errno = ENOMEM; |
| return EOF; |
| } |
| fp->_bf._size = 64; |
| } |
| #endif /* STRING_ONLY */ |
| |
| fmt = (char *)fmt0; |
| uio.uio_iov = iovp = iov; |
| uio.uio_resid = 0; |
| uio.uio_iovcnt = 0; |
| ret = 0; |
| #ifndef _NO_POS_ARGS |
| arg_index = 0; |
| saved_fmt = NULL; |
| arg_type[0] = -1; |
| numargs = 0; |
| is_pos_arg = 0; |
| #endif |
| |
| /* |
| * Scan the format for conversions (`%' character). |
| */ |
| for (;;) { |
| cp = fmt; |
| #ifdef _MB_CAPABLE |
| while ((n = __mbtowc (data, &wc, fmt, MB_CUR_MAX, |
| __locale_charset (), &state)) > 0) { |
| if (wc == '%') |
| break; |
| fmt += n; |
| } |
| #else |
| while (*fmt != '\0' && *fmt != '%') |
| fmt += 1; |
| #endif |
| if ((m = fmt - cp) != 0) { |
| PRINT (cp, m); |
| ret += m; |
| } |
| #ifdef _MB_CAPABLE |
| if (n <= 0) |
| goto done; |
| #else |
| if (*fmt == '\0') |
| goto done; |
| #endif |
| fmt_anchor = fmt; |
| fmt++; /* skip over '%' */ |
| |
| flags = 0; |
| dprec = 0; |
| width = 0; |
| prec = -1; |
| sign = '\0'; |
| #ifndef _NO_POS_ARGS |
| N = arg_index; |
| is_pos_arg = 0; |
| #endif |
| |
| rflag: ch = *fmt++; |
| reswitch: switch (ch) { |
| #ifdef _WANT_IO_C99_FORMATS |
| case '\'': |
| /* The ' flag is required by POSIX, but not C99. |
| In the C locale, LC_NUMERIC requires |
| thousands_sep to be the empty string. And since |
| no other locales are supported (yet), this flag |
| is currently a no-op. */ |
| goto rflag; |
| #endif |
| case ' ': |
| /* |
| * ``If the space and + flags both appear, the space |
| * flag will be ignored.'' |
| * -- ANSI X3J11 |
| */ |
| if (!sign) |
| sign = ' '; |
| goto rflag; |
| case '#': |
| flags |= ALT; |
| goto rflag; |
| case '*': |
| #ifndef _NO_POS_ARGS |
| /* we must check for positional arg used for dynamic width */ |
| n = N; |
| old_is_pos_arg = is_pos_arg; |
| is_pos_arg = 0; |
| if (is_digit (*fmt)) { |
| char *old_fmt = fmt; |
| |
| n = 0; |
| ch = *fmt++; |
| do { |
| n = 10 * n + to_digit (ch); |
| ch = *fmt++; |
| } while (is_digit (ch)); |
| |
| if (ch == '$') { |
| if (n <= MAX_POS_ARGS) { |
| n -= 1; |
| is_pos_arg = 1; |
| } |
| else |
| goto error; |
| } |
| else { |
| fmt = old_fmt; |
| goto rflag; |
| } |
| } |
| #endif /* !_NO_POS_ARGS */ |
| |
| /* |
| * ``A negative field width argument is taken as a |
| * - flag followed by a positive field width.'' |
| * -- ANSI X3J11 |
| * They don't exclude field widths read from args. |
| */ |
| width = GET_ARG (n, ap, int); |
| #ifndef _NO_POS_ARGS |
| is_pos_arg = old_is_pos_arg; |
| #endif |
| if (width >= 0) |
| goto rflag; |
| width = -width; |
| /* FALLTHROUGH */ |
| case '-': |
| flags |= LADJUST; |
| goto rflag; |
| case '+': |
| sign = '+'; |
| goto rflag; |
| case '.': |
| if ((ch = *fmt++) == '*') { |
| #ifndef _NO_POS_ARGS |
| /* we must check for positional arg used for dynamic width */ |
| n = N; |
| old_is_pos_arg = is_pos_arg; |
| is_pos_arg = 0; |
| if (is_digit (*fmt)) { |
| char *old_fmt = fmt; |
| |
| n = 0; |
| ch = *fmt++; |
| do { |
| n = 10 * n + to_digit (ch); |
| ch = *fmt++; |
| } while (is_digit (ch)); |
| |
| if (ch == '$') { |
| if (n <= MAX_POS_ARGS) { |
| n -= 1; |
| is_pos_arg = 1; |
| } |
| else |
| goto error; |
| } |
| else { |
| fmt = old_fmt; |
| goto rflag; |
| } |
| } |
| #endif /* !_NO_POS_ARGS */ |
| prec = GET_ARG (n, ap, int); |
| #ifndef _NO_POS_ARGS |
| is_pos_arg = old_is_pos_arg; |
| #endif |
| if (prec < 0) |
| prec = -1; |
| goto rflag; |
| } |
| n = 0; |
| while (is_digit (ch)) { |
| n = 10 * n + to_digit (ch); |
| ch = *fmt++; |
| } |
| prec = n < 0 ? -1 : n; |
| goto reswitch; |
| case '0': |
| /* |
| * ``Note that 0 is taken as a flag, not as the |
| * beginning of a field width.'' |
| * -- ANSI X3J11 |
| */ |
| flags |= ZEROPAD; |
| goto rflag; |
| case '1': case '2': case '3': case '4': |
| case '5': case '6': case '7': case '8': case '9': |
| n = 0; |
| do { |
| n = 10 * n + to_digit (ch); |
| ch = *fmt++; |
| } while (is_digit (ch)); |
| #ifndef _NO_POS_ARGS |
| if (ch == '$') { |
| if (n <= MAX_POS_ARGS) { |
| N = n - 1; |
| is_pos_arg = 1; |
| goto rflag; |
| } |
| else |
| goto error; |
| } |
| #endif /* !_NO_POS_ARGS */ |
| width = n; |
| goto reswitch; |
| #ifdef FLOATING_POINT |
| case 'L': |
| flags |= LONGDBL; |
| goto rflag; |
| #endif |
| case 'h': |
| #ifdef _WANT_IO_C99_FORMATS |
| if (*fmt == 'h') { |
| fmt++; |
| flags |= CHARINT; |
| } else |
| #endif |
| flags |= SHORTINT; |
| goto rflag; |
| case 'l': |
| #if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG |
| if (*fmt == 'l') { |
| fmt++; |
| flags |= QUADINT; |
| } else |
| #endif |
| flags |= LONGINT; |
| goto rflag; |
| case 'q': /* extension */ |
| flags |= QUADINT; |
| goto rflag; |
| #ifdef _WANT_IO_C99_FORMATS |
| case 'j': |
| if (sizeof (intmax_t) == sizeof (long)) |
| flags |= LONGINT; |
| else |
| flags |= QUADINT; |
| goto rflag; |
| case 'z': |
| if (sizeof (size_t) < sizeof (int)) |
| /* POSIX states size_t is 16 or more bits, as is short. */ |
| flags |= SHORTINT; |
| else if (sizeof (size_t) == sizeof (int)) |
| /* no flag needed */; |
| else if (sizeof (size_t) <= sizeof (long)) |
| flags |= LONGINT; |
| else |
| /* POSIX states that at least one programming |
| environment must support size_t no wider than |
| long, but that means other environments can |
| have size_t as wide as long long. */ |
| flags |= QUADINT; |
| goto rflag; |
| case 't': |
| if (sizeof (ptrdiff_t) < sizeof (int)) |
| /* POSIX states ptrdiff_t is 16 or more bits, as |
| is short. */ |
| flags |= SHORTINT; |
| else if (sizeof (ptrdiff_t) == sizeof (int)) |
| /* no flag needed */; |
| else if (sizeof (ptrdiff_t) <= sizeof (long)) |
| flags |= LONGINT; |
| else |
| /* POSIX states that at least one programming |
| environment must support ptrdiff_t no wider than |
| long, but that means other environments can |
| have ptrdiff_t as wide as long long. */ |
| flags |= QUADINT; |
| goto rflag; |
| case 'C': |
| #endif /* _WANT_IO_C99_FORMATS */ |
| case 'c': |
| cp = buf; |
| #ifdef _MB_CAPABLE |
| if (ch == 'C' || (flags & LONGINT)) { |
| mbstate_t ps; |
| |
| memset ((_PTR)&ps, '\0', sizeof (mbstate_t)); |
| if ((size = (int)_wcrtomb_r (data, cp, |
| (wchar_t)GET_ARG (N, ap, wint_t), |
| &ps)) == -1) { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| } |
| else |
| #endif /* _MB_CAPABLE */ |
| { |
| *cp = GET_ARG (N, ap, int); |
| size = 1; |
| } |
| sign = '\0'; |
| break; |
| case 'D': /* extension */ |
| flags |= LONGINT; |
| /*FALLTHROUGH*/ |
| case 'd': |
| case 'i': |
| _uquad = SARG (); |
| #ifndef _NO_LONGLONG |
| if ((quad_t)_uquad < 0) |
| #else |
| if ((long) _uquad < 0) |
| #endif |
| { |
| |
| _uquad = -_uquad; |
| sign = '-'; |
| } |
| base = DEC; |
| goto number; |
| #ifdef FLOATING_POINT |
| # ifdef _WANT_IO_C99_FORMATS |
| case 'a': |
| case 'A': |
| case 'F': |
| # endif |
| case 'e': |
| case 'E': |
| case 'f': |
| case 'g': |
| case 'G': |
| # ifdef _NO_LONGDBL |
| if (flags & LONGDBL) { |
| _fpvalue = (double) GET_ARG (N, ap, _LONG_DOUBLE); |
| } else { |
| _fpvalue = GET_ARG (N, ap, double); |
| } |
| |
| /* do this before tricky precision changes |
| |
| If the output is infinite or NaN, leading |
| zeros are not permitted. Otherwise, scanf |
| could not read what printf wrote. |
| */ |
| if (isinf (_fpvalue)) { |
| if (_fpvalue < 0) |
| sign = '-'; |
| if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */ |
| cp = "INF"; |
| else |
| cp = "inf"; |
| size = 3; |
| flags &= ~ZEROPAD; |
| break; |
| } |
| if (isnan (_fpvalue)) { |
| if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */ |
| cp = "NAN"; |
| else |
| cp = "nan"; |
| size = 3; |
| flags &= ~ZEROPAD; |
| break; |
| } |
| |
| # else /* !_NO_LONGDBL */ |
| |
| if (flags & LONGDBL) { |
| _fpvalue = GET_ARG (N, ap, _LONG_DOUBLE); |
| } else { |
| _fpvalue = (_LONG_DOUBLE)GET_ARG (N, ap, double); |
| } |
| |
| /* do this before tricky precision changes */ |
| expt = _ldcheck (&_fpvalue); |
| if (expt == 2) { |
| if (_fpvalue < 0) |
| sign = '-'; |
| if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */ |
| cp = "INF"; |
| else |
| cp = "inf"; |
| size = 3; |
| flags &= ~ZEROPAD; |
| break; |
| } |
| if (expt == 1) { |
| if (ch <= 'G') /* 'A', 'E', 'F', or 'G' */ |
| cp = "NAN"; |
| else |
| cp = "nan"; |
| size = 3; |
| flags &= ~ZEROPAD; |
| break; |
| } |
| # endif /* !_NO_LONGDBL */ |
| |
| # ifdef _WANT_IO_C99_FORMATS |
| if (ch == 'a' || ch == 'A') { |
| ox[0] = '0'; |
| ox[1] = ch == 'a' ? 'x' : 'X'; |
| flags |= HEXPREFIX; |
| if (prec >= BUF) |
| { |
| if ((malloc_buf = |
| (char *)_malloc_r (data, prec + 1)) |
| == NULL) |
| { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| cp = malloc_buf; |
| } |
| else |
| cp = buf; |
| } else |
| # endif /* _WANT_IO_C99_FORMATS */ |
| if (prec == -1) { |
| prec = DEFPREC; |
| } else if ((ch == 'g' || ch == 'G') && prec == 0) { |
| prec = 1; |
| } |
| |
| flags |= FPT; |
| |
| cp = cvt (data, _fpvalue, prec, flags, &softsign, |
| &expt, ch, &ndig, cp); |
| |
| if (ch == 'g' || ch == 'G') { |
| if (expt <= -4 || expt > prec) |
| ch -= 2; /* 'e' or 'E' */ |
| else |
| ch = 'g'; |
| } |
| # ifdef _WANT_IO_C99_FORMATS |
| else if (ch == 'F') |
| ch = 'f'; |
| # endif |
| if (ch <= 'e') { /* 'a', 'A', 'e', or 'E' fmt */ |
| --expt; |
| expsize = exponent (expstr, expt, ch); |
| size = expsize + ndig; |
| if (ndig > 1 || flags & ALT) |
| ++size; |
| } else if (ch == 'f') { /* f fmt */ |
| if (expt > 0) { |
| size = expt; |
| if (prec || flags & ALT) |
| size += prec + 1; |
| } else /* "0.X" */ |
| size = (prec || flags & ALT) |
| ? prec + 2 |
| : 1; |
| } else if (expt >= ndig) { /* fixed g fmt */ |
| size = expt; |
| if (flags & ALT) |
| ++size; |
| } else |
| size = ndig + (expt > 0 ? |
| 1 : 2 - expt); |
| |
| if (softsign) |
| sign = '-'; |
| break; |
| #endif /* FLOATING_POINT */ |
| case 'n': |
| #ifndef _NO_LONGLONG |
| if (flags & QUADINT) |
| *GET_ARG (N, ap, quad_ptr_t) = ret; |
| else |
| #endif |
| if (flags & LONGINT) |
| *GET_ARG (N, ap, long_ptr_t) = ret; |
| else if (flags & SHORTINT) |
| *GET_ARG (N, ap, short_ptr_t) = ret; |
| #ifdef _WANT_IO_C99_FORMATS |
| else if (flags & CHARINT) |
| *GET_ARG (N, ap, char_ptr_t) = ret; |
| #endif |
| else |
| *GET_ARG (N, ap, int_ptr_t) = ret; |
| continue; /* no output */ |
| case 'O': /* extension */ |
| flags |= LONGINT; |
| /*FALLTHROUGH*/ |
| case 'o': |
| _uquad = UARG (); |
| base = OCT; |
| goto nosign; |
| case 'p': |
| /* |
| * ``The argument shall be a pointer to void. The |
| * value of the pointer is converted to a sequence |
| * of printable characters, in an implementation- |
| * defined manner.'' |
| * -- ANSI X3J11 |
| */ |
| /* NOSTRICT */ |
| _uquad = (uintptr_t) GET_ARG (N, ap, void_ptr_t); |
| base = HEX; |
| xdigs = "0123456789abcdef"; |
| flags |= HEXPREFIX; |
| ox[0] = '0'; |
| ox[1] = ch = 'x'; |
| goto nosign; |
| case 's': |
| #ifdef _WANT_IO_C99_FORMATS |
| case 'S': |
| #endif |
| sign = '\0'; |
| cp = GET_ARG (N, ap, char_ptr_t); |
| #ifndef __OPTIMIZE_SIZE__ |
| /* Behavior is undefined if the user passed a |
| NULL string when precision is not 0. |
| However, if we are not optimizing for size, |
| we might as well mirror glibc behavior. */ |
| if (cp == NULL) { |
| cp = "(null)"; |
| size = ((unsigned) prec > 6U) ? 6 : prec; |
| } |
| else |
| #endif /* __OPTIMIZE_SIZE__ */ |
| #ifdef _MB_CAPABLE |
| if (ch == 'S' || (flags & LONGINT)) { |
| mbstate_t ps; |
| _CONST wchar_t *wcp; |
| |
| wcp = (_CONST wchar_t *)cp; |
| size = m = 0; |
| memset ((_PTR)&ps, '\0', sizeof (mbstate_t)); |
| |
| /* Count number of bytes needed for multibyte |
| string that will be produced from widechar |
| string. */ |
| if (prec >= 0) { |
| while (1) { |
| if (wcp[m] == L'\0') |
| break; |
| if ((n = (int)_wcrtomb_r (data, |
| buf, wcp[m], &ps)) == -1) { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| if (n + size > prec) |
| break; |
| m += 1; |
| size += n; |
| if (size == prec) |
| break; |
| } |
| } |
| else { |
| if ((size = (int)_wcsrtombs_r (data, |
| NULL, &wcp, 0, &ps)) == -1) { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| wcp = (_CONST wchar_t *)cp; |
| } |
| |
| if (size == 0) |
| break; |
| |
| if (size >= BUF) { |
| if ((malloc_buf = |
| (char *)_malloc_r (data, size + 1)) |
| == NULL) { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| cp = malloc_buf; |
| } else |
| cp = buf; |
| |
| /* Convert widechar string to multibyte string. */ |
| memset ((_PTR)&ps, '\0', sizeof (mbstate_t)); |
| if (_wcsrtombs_r (data, cp, &wcp, size, &ps) |
| != size) { |
| fp->_flags |= __SERR; |
| goto error; |
| } |
| cp[size] = '\0'; |
| } |
| else |
| #endif /* _MB_CAPABLE */ |
| if (prec >= 0) { |
| /* |
| * can't use strlen; can only look for the |
| * NUL in the first `prec' characters, and |
| * strlen () will go further. |
| */ |
| char *p = memchr (cp, 0, prec); |
| |
| if (p != NULL) { |
| size = p - cp; |
| if (size > prec) |
| size = prec; |
| } else |
| size = prec; |
| } else |
| size = strlen (cp); |
| |
| break; |
| case 'U': /* extension */ |
| flags |= LONGINT; |
| /*FALLTHROUGH*/ |
| case 'u': |
| _uquad = UARG (); |
| base = DEC; |
| goto nosign; |
| case 'X': |
| xdigs = "0123456789ABCDEF"; |
| goto hex; |
| case 'x': |
| xdigs = "0123456789abcdef"; |
| hex: _uquad = UARG (); |
| base = HEX; |
| /* leading 0x/X only if non-zero */ |
| if (flags & ALT && _uquad != 0) { |
| ox[0] = '0'; |
| ox[1] = ch; |
| flags |= HEXPREFIX; |
| } |
| |
| /* unsigned conversions */ |
| nosign: sign = '\0'; |
| /* |
| * ``... diouXx conversions ... if a precision is |
| * specified, the 0 flag will be ignored.'' |
| * -- ANSI X3J11 |
| */ |
| number: if ((dprec = prec) >= 0) |
| flags &= ~ZEROPAD; |
| |
| /* |
| * ``The result of converting a zero value with an |
| * explicit precision of zero is no characters.'' |
| * -- ANSI X3J11 |
| */ |
| cp = buf + BUF; |
| if (_uquad != 0 || prec != 0) { |
| /* |
| * Unsigned mod is hard, and unsigned mod |
| * by a constant is easier than that by |
| * a variable; hence this switch. |
| */ |
| switch (base) { |
| case OCT: |
| do { |
| *--cp = to_char (_uquad & 7); |
| _uquad >>= 3; |
| } while (_uquad); |
| /* handle octal leading 0 */ |
| if (flags & ALT && *cp != '0') |
| *--cp = '0'; |
| break; |
| |
| case DEC: |
| /* many numbers are 1 digit */ |
| while (_uquad >= 10) { |
| *--cp = to_char (_uquad % 10); |
| _uquad /= 10; |
| } |
| *--cp = to_char (_uquad); |
| break; |
| |
| case HEX: |
| do { |
| *--cp = xdigs[_uquad & 15]; |
| _uquad >>= 4; |
| } while (_uquad); |
| break; |
| |
| default: |
| cp = "bug in vfprintf: bad base"; |
| size = strlen (cp); |
| goto skipsize; |
| } |
| } |
| /* |
| * ...result is to be converted to an 'alternate form'. |
| * For o conversion, it increases the precision to force |
| * the first digit of the result to be a zero." |
| * -- ANSI X3J11 |
| * |
| * To demonstrate this case, compile and run: |
| * printf ("%#.0o",0); |
| */ |
| else if (base == OCT && (flags & ALT)) |
| *--cp = '0'; |
| |
| size = buf + BUF - cp; |
| skipsize: |
| break; |
| default: /* "%?" prints ?, unless ? is NUL */ |
| if (ch == '\0') |
| goto done; |
| /* pretend it was %c with argument ch */ |
| cp = buf; |
| *cp = ch; |
| size = 1; |
| sign = '\0'; |
| break; |
| } |
| |
| /* |
| * All reasonable formats wind up here. At this point, `cp' |
| * points to a string which (if not flags&LADJUST) should be |
| * padded out to `width' places. If flags&ZEROPAD, it should |
| * first be prefixed by any sign or other prefix; otherwise, |
| * it should be blank padded before the prefix is emitted. |
| * After any left-hand padding and prefixing, emit zeroes |
| * required by a decimal [diouxX] precision, then print the |
| * string proper, then emit zeroes required by any leftover |
| * floating precision; finally, if LADJUST, pad with blanks. |
| * If flags&FPT, ch must be in [aAeEfg]. |
| * |
| * Compute actual size, so we know how much to pad. |
| * size excludes decimal prec; realsz includes it. |
| */ |
| realsz = dprec > size ? dprec : size; |
| if (sign) |
| realsz++; |
| if (flags & HEXPREFIX) |
| realsz+= 2; |
| |
| /* right-adjusting blank padding */ |
| if ((flags & (LADJUST|ZEROPAD)) == 0) |
| PAD (width - realsz, blanks); |
| |
| /* prefix */ |
| if (sign) |
| PRINT (&sign, 1); |
| if (flags & HEXPREFIX) |
| PRINT (ox, 2); |
| |
| /* right-adjusting zero padding */ |
| if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) |
| PAD (width - realsz, zeroes); |
| |
| /* leading zeroes from decimal precision */ |
| PAD (dprec - size, zeroes); |
| |
| /* the string or number proper */ |
| #ifdef FLOATING_POINT |
| if ((flags & FPT) == 0) { |
| PRINT (cp, size); |
| } else { /* glue together f_p fragments */ |
| if (ch >= 'f') { /* 'f' or 'g' */ |
| if (_fpvalue == 0) { |
| /* kludge for __dtoa irregularity */ |
| PRINT ("0", 1); |
| if (expt < ndig || flags & ALT) { |
| PRINT (decimal_point, decp_len); |
| PAD (ndig - 1, zeroes); |
| } |
| } else if (expt <= 0) { |
| PRINT ("0", 1); |
| if (expt || ndig || flags & ALT) { |
| PRINT (decimal_point, decp_len); |
| PAD (-expt, zeroes); |
| PRINT (cp, ndig); |
| } |
| } else if (expt >= ndig) { |
| PRINT (cp, ndig); |
| PAD (expt - ndig, zeroes); |
| if (flags & ALT) |
| PRINT (decimal_point, decp_len); |
| } else { |
| PRINT (cp, expt); |
| cp += expt; |
| PRINT (decimal_point, decp_len); |
| PRINT (cp, ndig - expt); |
| } |
| } else { /* 'a', 'A', 'e', or 'E' */ |
| if (ndig > 1 || flags & ALT) { |
| PRINT (cp, 1); |
| cp++; |
| PRINT (decimal_point, decp_len); |
| if (_fpvalue) { |
| PRINT (cp, ndig - 1); |
| } else /* 0.[0..] */ |
| /* __dtoa irregularity */ |
| PAD (ndig - 1, zeroes); |
| } else /* XeYYY */ |
| PRINT (cp, 1); |
| PRINT (expstr, expsize); |
| } |
| } |
| #else /* !FLOATING_POINT */ |
| PRINT (cp, size); |
| #endif |
| /* left-adjusting padding (always blank) */ |
| if (flags & LADJUST) |
| PAD (width - realsz, blanks); |
| |
| /* finally, adjust ret */ |
| ret += width > realsz ? width : realsz; |
| |
| FLUSH (); /* copy out the I/O vectors */ |
| |
| if (malloc_buf != NULL) { |
| _free_r (data, malloc_buf); |
| malloc_buf = NULL; |
| } |
| } |
| done: |
| FLUSH (); |
| error: |
| if (malloc_buf != NULL) |
| _free_r (data, malloc_buf); |
| #ifndef STRING_ONLY |
| _funlockfile (fp); |
| #endif |
| return (__sferror (fp) ? EOF : ret); |
| /* NOTREACHED */ |
| } |
| |
| #ifdef FLOATING_POINT |
| |
| /* Using reentrant DATA, convert finite VALUE into a string of digits |
| with no decimal point, using NDIGITS precision and FLAGS as guides |
| to whether trailing zeros must be included. Set *SIGN to nonzero |
| if VALUE was negative. Set *DECPT to the exponent plus one. Set |
| *LENGTH to the length of the returned string. CH must be one of |
| [aAeEfFgG]; if it is [aA], then the return string lives in BUF, |
| otherwise the return value shares the mprec reentrant storage. */ |
| static char * |
| cvt(struct _reent *data, _PRINTF_FLOAT_TYPE value, int ndigits, int flags, |
| char *sign, int *decpt, int ch, int *length, char *buf) |
| { |
| int mode, dsgn; |
| char *digits, *bp, *rve; |
| # ifdef _NO_LONGDBL |
| union double_union tmp; |
| |
| tmp.d = value; |
| if (word0 (tmp) & Sign_bit) { /* this will check for < 0 and -0.0 */ |
| value = -value; |
| *sign = '-'; |
| } else |
| *sign = '\000'; |
| # else /* !_NO_LONGDBL */ |
| union |
| { |
| struct ldieee ieee; |
| _LONG_DOUBLE val; |
| } ld; |
| |
| ld.val = value; |
| if (ld.ieee.sign) { /* this will check for < 0 and -0.0 */ |
| value = -value; |
| *sign = '-'; |
| } else |
| *sign = '\000'; |
| # endif /* !_NO_LONGDBL */ |
| |
| # ifdef _WANT_IO_C99_FORMATS |
| if (ch == 'a' || ch == 'A') { |
| /* This code assumes FLT_RADIX is a power of 2. The initial |
| division ensures the digit before the decimal will be less |
| than FLT_RADIX (unless it is rounded later). There is no |
| loss of precision in these calculations. */ |
| value = FREXP (value, decpt) / 8; |
| if (!value) |
| *decpt = 1; |
| digits = ch == 'a' ? "0123456789abcdef" : "0123456789ABCDEF"; |
| bp = buf; |
| do { |
| value *= 16; |
| mode = (int) value; |
| value -= mode; |
| *bp++ = digits[mode]; |
| } while (ndigits-- && value); |
| if (value > 0.5 || (value == 0.5 && mode & 1)) { |
| /* round to even */ |
| rve = bp; |
| while (*--rve == digits[0xf]) { |
| *rve = '0'; |
| } |
| *rve = *rve == '9' ? digits[0xa] : *rve + 1; |
| } else { |
| while (ndigits-- >= 0) { |
| *bp++ = '0'; |
| } |
| } |
| *length = bp - buf; |
| return buf; |
| } |
| # endif /* _WANT_IO_C99_FORMATS */ |
| if (ch == 'f' || ch == 'F') { |
| mode = 3; /* ndigits after the decimal point */ |
| } else { |
| /* To obtain ndigits after the decimal point for the 'e' |
| * and 'E' formats, round to ndigits + 1 significant |
| * figures. |
| */ |
| if (ch == 'e' || ch == 'E') { |
| ndigits++; |
| } |
| mode = 2; /* ndigits significant digits */ |
| } |
| |
| digits = _DTOA_R (data, value, mode, ndigits, decpt, &dsgn, &rve); |
| |
| if ((ch != 'g' && ch != 'G') || flags & ALT) { /* Print trailing zeros */ |
| bp = digits + ndigits; |
| if (ch == 'f' || ch == 'F') { |
| if (*digits == '0' && value) |
| *decpt = -ndigits + 1; |
| bp += *decpt; |
| } |
| if (value == 0) /* kludge for __dtoa irregularity */ |
| rve = bp; |
| while (rve < bp) |
| *rve++ = '0'; |
| } |
| *length = rve - digits; |
| return (digits); |
| } |
| |
| static int |
| exponent(char *p0, int exp, int fmtch) |
| { |
| register char *p, *t; |
| char expbuf[MAXEXPLEN]; |
| # ifdef _WANT_IO_C99_FORMATS |
| int isa = fmtch == 'a' || fmtch == 'A'; |
| # else |
| # define isa 0 |
| # endif |
| |
| p = p0; |
| *p++ = isa ? 'p' - 'a' + fmtch : fmtch; |
| if (exp < 0) { |
| exp = -exp; |
| *p++ = '-'; |
| } |
| else |
| *p++ = '+'; |
| t = expbuf + MAXEXPLEN; |
| if (exp > 9) { |
| do { |
| *--t = to_char (exp % 10); |
| } while ((exp /= 10) > 9); |
| *--t = to_char (exp); |
| for (; t < expbuf + MAXEXPLEN; *p++ = *t++); |
| } |
| else { |
| if (!isa) |
| *p++ = '0'; |
| *p++ = to_char (exp); |
| } |
| return (p - p0); |
| } |
| #endif /* FLOATING_POINT */ |
| |
| |
| #ifndef _NO_POS_ARGS |
| |
| /* Positional argument support. |
| Written by Jeff Johnston |
| |
| Copyright (c) 2002 Red Hat Incorporated. |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| |
| Redistributions in binary form must reproduce the above copyright |
| notice, this list of conditions and the following disclaimer in the |
| documentation and/or other materials provided with the distribution. |
| |
| The name of Red Hat Incorporated may not be used to endorse |
| or promote products derived from this software without specific |
| prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
| |
| /* The below constant state tables are shared between all versions of |
| vfprintf and vfwprintf. They must only be defined once, which we do in |
| the STRING_ONLY/INTEGER_ONLY versions here. */ |
| #if defined (STRING_ONLY) && defined(INTEGER_ONLY) |
| |
| _CONST __CH_CLASS __chclass[256] = { |
| /* 00-07 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 08-0f */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 10-17 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 18-1f */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 20-27 */ FLAG, OTHER, OTHER, FLAG, DOLLAR, OTHER, OTHER, FLAG, |
| /* 28-2f */ OTHER, OTHER, STAR, FLAG, OTHER, FLAG, DOT, OTHER, |
| /* 30-37 */ ZERO, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, |
| /* 38-3f */ DIGIT, DIGIT, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 40-47 */ OTHER, SPEC, OTHER, SPEC, SPEC, SPEC, SPEC, SPEC, |
| /* 48-4f */ OTHER, OTHER, OTHER, OTHER, MODFR, OTHER, OTHER, SPEC, |
| /* 50-57 */ OTHER, OTHER, OTHER, SPEC, OTHER, SPEC, OTHER, OTHER, |
| /* 58-5f */ SPEC, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 60-67 */ OTHER, SPEC, OTHER, SPEC, SPEC, SPEC, SPEC, SPEC, |
| /* 68-6f */ MODFR, SPEC, MODFR, OTHER, MODFR, OTHER, SPEC, SPEC, |
| /* 70-77 */ SPEC, MODFR, OTHER, SPEC, MODFR, SPEC, OTHER, OTHER, |
| /* 78-7f */ SPEC, OTHER, MODFR, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 80-87 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 88-8f */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 90-97 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* 98-9f */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* a0-a7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* a8-af */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* b0-b7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* b8-bf */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* c0-c7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* c8-cf */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* d0-d7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* d8-df */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* e0-e7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* e8-ef */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* f0-f7 */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| /* f8-ff */ OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, |
| }; |
| |
| _CONST __STATE __state_table[MAX_STATE][MAX_CH_CLASS] = { |
| /* '0' '1-9' '$' MODFR SPEC '.' '*' FLAG OTHER */ |
| /* START */ { SFLAG, WDIG, DONE, SMOD, DONE, SDOT, VARW, SFLAG, DONE }, |
| /* SFLAG */ { SFLAG, WDIG, DONE, SMOD, DONE, SDOT, VARW, SFLAG, DONE }, |
| /* WDIG */ { DONE, DONE, WIDTH, SMOD, DONE, SDOT, DONE, DONE, DONE }, |
| /* WIDTH */ { DONE, DONE, DONE, SMOD, DONE, SDOT, DONE, DONE, DONE }, |
| /* SMOD */ { DONE, DONE, DONE, DONE, DONE, DONE, DONE, DONE, DONE }, |
| /* SDOT */ { SDOT, PREC, DONE, SMOD, DONE, DONE, VARP, DONE, DONE }, |
| /* VARW */ { DONE, VWDIG, DONE, SMOD, DONE, SDOT, DONE, DONE, DONE }, |
| /* VARP */ { DONE, VPDIG, DONE, SMOD, DONE, DONE, DONE, DONE, DONE }, |
| /* PREC */ { DONE, DONE, DONE, SMOD, DONE, DONE, DONE, DONE, DONE }, |
| /* VWDIG */ { DONE, DONE, WIDTH, DONE, DONE, DONE, DONE, DONE, DONE }, |
| /* VPDIG */ { DONE, DONE, PREC, DONE, DONE, DONE, DONE, DONE, DONE }, |
| }; |
| |
| _CONST __ACTION __action_table[MAX_STATE][MAX_CH_CLASS] = { |
| /* '0' '1-9' '$' MODFR SPEC '.' '*' FLAG OTHER */ |
| /* START */ { NOOP, NUMBER, NOOP, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* SFLAG */ { NOOP, NUMBER, NOOP, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* WDIG */ { NOOP, NOOP, GETPOS, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* WIDTH */ { NOOP, NOOP, NOOP, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* SMOD */ { NOOP, NOOP, NOOP, NOOP, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* SDOT */ { NOOP, SKIPNUM, NOOP, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* VARW */ { NOOP, NUMBER, NOOP, GETPW, GETPWB, GETPW, NOOP, NOOP, NOOP }, |
| /* VARP */ { NOOP, NUMBER, NOOP, GETPW, GETPWB, NOOP, NOOP, NOOP, NOOP }, |
| /* PREC */ { NOOP, NOOP, NOOP, GETMOD, GETARG, NOOP, NOOP, NOOP, NOOP }, |
| /* VWDIG */ { NOOP, NOOP, PWPOS, NOOP, NOOP, NOOP, NOOP, NOOP, NOOP }, |
| /* VPDIG */ { NOOP, NOOP, PWPOS, NOOP, NOOP, NOOP, NOOP, NOOP, NOOP }, |
| }; |
| |
| #endif /* STRING_ONLY && INTEGER_ONLY */ |
| |
| /* function to get positional parameter N where n = N - 1 */ |
| static union arg_val * |
| _DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt), |
| struct _reent *data _AND |
| int n _AND |
| char *fmt _AND |
| va_list *ap _AND |
| int *numargs_p _AND |
| union arg_val *args _AND |
| int *arg_type _AND |
| char **last_fmt) |
| { |
| int ch; |
| int number, flags; |
| int spec_type; |
| int numargs = *numargs_p; |
| __CH_CLASS chtype; |
| __STATE state, next_state; |
| __ACTION action; |
| int pos, last_arg; |
| int max_pos_arg = n; |
| /* Only need types that can be reached via vararg promotions. */ |
| enum types { INT, LONG_INT, QUAD_INT, CHAR_PTR, DOUBLE, LONG_DOUBLE, WIDE_CHAR }; |
| # ifdef _MB_CAPABLE |
| wchar_t wc; |
| mbstate_t wc_state; |
| int nbytes; |
| # endif |
| |
| /* if this isn't the first call, pick up where we left off last time */ |
| if (*last_fmt != NULL) |
| fmt = *last_fmt; |
| |
| # ifdef _MB_CAPABLE |
| memset (&wc_state, '\0', sizeof (wc_state)); |
| # endif |
| |
| /* we need to process either to end of fmt string or until we have actually |
| read the desired parameter from the vararg list. */ |
| while (*fmt && n >= numargs) |
| { |
| # ifdef _MB_CAPABLE |
| while ((nbytes = __mbtowc (data, &wc, fmt, MB_CUR_MAX, |
| __locale_charset (), &wc_state)) > 0) |
| { |
| fmt += nbytes; |
| if (wc == '%') |
| break; |
| } |
| |
| if (nbytes <= 0) |
| break; |
| # else |
| while (*fmt != '\0' && *fmt != '%') |
| fmt += 1; |
| |
| if (*fmt == '\0') |
| break; |
| # endif /* ! _MB_CAPABLE */ |
| state = START; |
| flags = 0; |
| pos = -1; |
| number = 0; |
| spec_type = INT; |
| |
| /* Use state/action table to process format specifiers. We ignore invalid |
| formats and we are only interested in information that tells us how to |
| read the vararg list. */ |
| while (state != DONE) |
| { |
| ch = *fmt++; |
| chtype = __chclass[ch]; |
| next_state = __state_table[state][chtype]; |
| action = __action_table[state][chtype]; |
| state = next_state; |
| |
| switch (action) |
| { |
| case GETMOD: /* we have format modifier */ |
| switch (ch) |
| { |
| case 'h': |
| /* No flag needed, since short and char promote to int. */ |
| break; |
| case 'L': |
| flags |= LONGDBL; |
| break; |
| case 'q': |
| flags |= QUADINT; |
| break; |
| # ifdef _WANT_IO_C99_FORMATS |
| case 'j': |
| if (sizeof (intmax_t) == sizeof (long)) |
| flags |= LONGINT; |
| else |
| flags |= QUADINT; |
| break; |
| case 'z': |
| if (sizeof (size_t) <= sizeof (int)) |
| /* no flag needed */; |
| else if (sizeof (size_t) <= sizeof (long)) |
| flags |= LONGINT; |
| else |
| /* POSIX states that at least one programming |
| environment must support size_t no wider than |
| long, but that means other environments can |
| have size_t as wide as long long. */ |
| flags |= QUADINT; |
| break; |
| case 't': |
| if (sizeof (ptrdiff_t) <= sizeof (int)) |
| /* no flag needed */; |
| else if (sizeof (ptrdiff_t) <= sizeof (long)) |
| flags |= LONGINT; |
| else |
| /* POSIX states that at least one programming |
| environment must support ptrdiff_t no wider than |
| long, but that means other environments can |
| have ptrdiff_t as wide as long long. */ |
| flags |= QUADINT; |
| break; |
| # endif /* _WANT_IO_C99_FORMATS */ |
| case 'l': |
| default: |
| # if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG |
| if (*fmt == 'l') |
| { |
| flags |= QUADINT; |
| ++fmt; |
| } |
| else |
| # endif |
| flags |= LONGINT; |
| break; |
| } |
| break; |
| case GETARG: /* we have format specifier */ |
| { |
| numargs &= (MAX_POS_ARGS - 1); |
| /* process the specifier and translate it to a type to fetch from varargs */ |
| switch (ch) |
| { |
| case 'd': |
| case 'i': |
| case 'o': |
| case 'x': |
| case 'X': |
| case 'u': |
| if (flags & LONGINT) |
| spec_type = LONG_INT; |
| # ifndef _NO_LONGLONG |
| else if (flags & QUADINT) |
| spec_type = QUAD_INT; |
| # endif |
| else |
| spec_type = INT; |
| break; |
| case 'D': |
| case 'U': |
| case 'O': |
| spec_type = LONG_INT; |
| break; |
| # ifdef _WANT_IO_C99_FORMATS |
| case 'a': |
| case 'A': |
| case 'F': |
| # endif |
| case 'f': |
| case 'g': |
| case 'G': |
| case 'E': |
| case 'e': |
| # ifndef _NO_LONGDBL |
| if (flags & LONGDBL) |
| spec_type = LONG_DOUBLE; |
| else |
| # endif |
| spec_type = DOUBLE; |
| break; |
| case 's': |
| # ifdef _WANT_IO_C99_FORMATS |
| case 'S': |
| # endif |
| case 'p': |
| case 'n': |
| spec_type = CHAR_PTR; |
| break; |
| case 'c': |
| # ifdef _WANT_IO_C99_FORMATS |
| if (flags & LONGINT) |
| spec_type = WIDE_CHAR; |
| else |
| # endif |
| spec_type = INT; |
| break; |
| # ifdef _WANT_IO_C99_FORMATS |
| case 'C': |
| spec_type = WIDE_CHAR; |
| break; |
| # endif |
| } |
| |
| /* if we have a positional parameter, just store the type, otherwise |
| fetch the parameter from the vararg list */ |
| if (pos != -1) |
| arg_type[pos] = spec_type; |
| else |
| { |
| switch (spec_type) |
| { |
| case LONG_INT: |
| args[numargs++].val_long = va_arg (*ap, long); |
| break; |
| case QUAD_INT: |
| args[numargs++].val_quad_t = va_arg (*ap, quad_t); |
| break; |
| case WIDE_CHAR: |
| args[numargs++].val_wint_t = va_arg (*ap, wint_t); |
| break; |
| case INT: |
| args[numargs++].val_int = va_arg (*ap, int); |
| break; |
| case CHAR_PTR: |
| args[numargs++].val_char_ptr_t = va_arg (*ap, char *); |
| break; |
| case DOUBLE: |
| args[numargs++].val_double = va_arg (*ap, double); |
| break; |
| case LONG_DOUBLE: |
| args[numargs++].val__LONG_DOUBLE = va_arg (*ap, _LONG_DOUBLE); |
| break; |
| } |
| } |
| } |
| break; |
| case GETPOS: /* we have positional specifier */ |
| if (arg_type[0] == -1) |
| memset (arg_type, 0, sizeof (int) * MAX_POS_ARGS); |
| pos = number - 1; |
| max_pos_arg = (max_pos_arg > pos ? max_pos_arg : pos); |
| break; |
| case PWPOS: /* we have positional specifier for width or precision */ |
| if (arg_type[0] == -1) |
| memset (arg_type, 0, sizeof (int) * MAX_POS_ARGS); |
| number -= 1; |
| arg_type[number] = INT; |
| max_pos_arg = (max_pos_arg > number ? max_pos_arg : number); |
| break; |
| case GETPWB: /* we require format pushback */ |
| --fmt; |
| /* fallthrough */ |
| case GETPW: /* we have a variable precision or width to acquire */ |
| args[numargs++].val_int = va_arg (*ap, int); |
| break; |
| case NUMBER: /* we have a number to process */ |
| number = (ch - '0'); |
| while ((ch = *fmt) != '\0' && is_digit (ch)) |
| { |
| number = number * 10 + (ch - '0'); |
| ++fmt; |
| } |
| break; |
| case SKIPNUM: /* we have a number to skip */ |
| while ((ch = *fmt) != '\0' && is_digit (ch)) |
| ++fmt; |
| break; |
| case NOOP: |
| default: |
| break; /* do nothing */ |
| } |
| } |
| } |
| |
| /* process all arguments up to at least the one we are looking for and if we |
| have seen the end of the string, then process up to the max argument needed */ |
| if (*fmt == '\0') |
| last_arg = max_pos_arg; |
| else |
| last_arg = n; |
| |
| while (numargs <= last_arg) |
| { |
| switch (arg_type[numargs]) |
| { |
| case LONG_INT: |
| args[numargs++].val_long = va_arg (*ap, long); |
| break; |
| case QUAD_INT: |
| args[numargs++].val_quad_t = va_arg (*ap, quad_t); |
| break; |
| case CHAR_PTR: |
| args[numargs++].val_char_ptr_t = va_arg (*ap, char *); |
| break; |
| case DOUBLE: |
| args[numargs++].val_double = va_arg (*ap, double); |
| break; |
| case LONG_DOUBLE: |
| args[numargs++].val__LONG_DOUBLE = va_arg (*ap, _LONG_DOUBLE); |
| break; |
| case WIDE_CHAR: |
| args[numargs++].val_wint_t = va_arg (*ap, wint_t); |
| break; |
| case INT: |
| default: |
| args[numargs++].val_int = va_arg (*ap, int); |
| break; |
| } |
| } |
| |
| /* alter the global numargs value and keep a reference to the last bit of the fmt |
| string we processed here because the caller will continue processing where we started */ |
| *numargs_p = numargs; |
| *last_fmt = fmt; |
| return &args[n]; |
| } |
| #endif /* !_NO_POS_ARGS */ |