newlib/newlib/libc/stdio/sniprintf.c
Jeff Johnston eabd7de028 2008-04-14 Jeff Johnston <jjohnstn@redhat.com>
* libc/stdio/Makefile.am: Build vfprintf.c and vfscanf.c with
        -DSTRING_ONLY defined with and without -DINTEGER_ONLY defined
        to build special versions for sprintf/sscanf family functions.
        * libc/stdio/Makefile.in: Regenerated.
        * libc/stdio/vfprintf.c[STRING_ONLY][INTEGER_ONLY](_VFPRINTF_R):
        Redefine to be _svfiprintf_r which is optimized to work with siprintf
        family of functions (i.e. no I/O) and does not support floating-point.
        [STRING_ONLY][!INTEGER_ONLY](_VFPRINTF_R): Redefine to be
        _svfprintf_r which is optimized to work with sprintf family of
        functions and not use I/O.
        [STRING_ONLY](__sprint_r): New string only version of static function.
        designed to work with sprintf family of functions.
        * libc/stdio/vfscanf.c[STRING_ONLY][INTEGER_ONLY](_SVFSCANF_R):
        Redefine to be _ssvfiscanf_r which is optimized to work with siscanf
        family of functions (i.e. no I/O) and no float-point support.
        [STRING_ONLY][!INTEGER_ONLY](_SVFSCANF_R): Redefine to be
        __ssvfscanf_r which is optimized to work with sscanf family of
        functions and does not require I/O functions.
        * libc/stdio/asprintf.c: Call _svfprintf_r instead of _vfprintf_r.
        * libc/stdio/snprintf.c: Ditto.
        * libc/stdio/sprintf.c: Ditto.
        * libc/stdio/vasnprintf.c: Ditto.
        * libc/stdio/vasprintf.c: Ditto.
        * libc/stdio/siprintf.c: Call _svfiprintf_r instead of _vfiprintf_r.
        * libc/stdio/sniprintf.c: Ditto.
        * libc/stdio/vasiprintf.c: Ditto.
        * libc/stdio/vsiprintf.c: Ditto.
        * libc/stdio/vsniprintf.c: Ditto.
        * libc/stdio/vsprintf.c: Ditto.
        * libc/stdio/local.h: Add prototypes for _svfprintf_r, _svfiprintf_r,
        _ssvfscanf_r, and _ssvfiscanf_r.
        * libc/stdio/sscanf.c: Call _ssvfscanf_r instead of _svfscanf_r.
        * libc/stdio/vsscanf.c: Ditto.
        * libc/stdio/siscanf.c: Call _ssvfiscanf_r instead of _svfiscanf_r.
        * libc/stdio/vsiscanf.c: Ditto.
2008-04-14 21:14:55 +00:00

121 lines
2.7 KiB
C

/*
* Copyright (c) 1990, 2007 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/* This code created by modifying snprintf.c so copyright inherited. */
/* doc in siprintf.c */
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#ifdef _HAVE_STDC
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include <limits.h>
#include <errno.h>
#include "local.h"
int
#ifdef _HAVE_STDC
_DEFUN (_sniprintf_r, (ptr, str, size, fmt),
struct _reent *ptr _AND
char *str _AND
size_t size _AND
_CONST char *fmt _DOTS)
#else
_sniprintf_r (ptr, str, size, fmt, va_alist)
struct _reent *ptr;
char *str;
size_t size;
_CONST char *fmt;
va_dcl
#endif
{
int ret;
va_list ap;
FILE f;
if (size > INT_MAX)
{
ptr->_errno = EOVERFLOW;
return EOF;
}
f._flags = __SWR | __SSTR;
f._bf._base = f._p = (unsigned char *) str;
f._bf._size = f._w = (size > 0 ? size - 1 : 0);
f._file = -1; /* No file. */
#ifdef _HAVE_STDC
va_start (ap, fmt);
#else
va_start (ap);
#endif
ret = _svfiprintf_r (ptr, &f, fmt, ap);
va_end (ap);
if (ret < EOF)
ptr->_errno = EOVERFLOW;
if (size > 0)
*f._p = 0;
return (ret);
}
#ifndef _REENT_ONLY
int
#ifdef _HAVE_STDC
_DEFUN (sniprintf, (str, size, fmt),
char *str _AND
size_t size _AND
_CONST char *fmt _DOTS)
#else
sniprintf (str, size, fmt, va_alist)
char *str;
size_t size;
_CONST char *fmt;
va_dcl
#endif
{
int ret;
va_list ap;
FILE f;
struct _reent *ptr = _REENT;
if (size > INT_MAX)
{
ptr->_errno = EOVERFLOW;
return EOF;
}
f._flags = __SWR | __SSTR;
f._bf._base = f._p = (unsigned char *) str;
f._bf._size = f._w = (size > 0 ? size - 1 : 0);
f._file = -1; /* No file. */
#ifdef _HAVE_STDC
va_start (ap, fmt);
#else
va_start (ap);
#endif
ret = _svfiprintf_r (ptr, &f, fmt, ap);
va_end (ap);
if (ret < EOF)
ptr->_errno = EOVERFLOW;
if (size > 0)
*f._p = 0;
return (ret);
}
#endif