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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-26 17:17:20 +08:00
Jeff Johnston db7aa4b168 2007-04-04 Eric Blake <ebb9@byu.net>
* libc/stdio/asiprintf.c (_asiprintf_r): Fix reentrancy.
	(asiprintf): Avoid overhead.
	* libc/stdio/asprintf.c (_asprintf_r): Fix reentrancy.
	(asprintf): Avoid overhead.
	* libc/stdio/diprintf.c (_diprintf_r, diprintf): New file.
	* libc/stdio/dprintf.c (_dprintf_r, dprintf): Use _DEFUN.
	* libc/stdio/fiprintf.c (_fiprintf_r): Add reentrant version.
	(fiprintf): Avoid overhead.
	* libc/stdio/fprintf.c (_fprintf_r): Add reentrant version.
	(fprintf): Avoid overhead.
	* libc/stdio/iprintf.c (_iprintf_r): Use _DEFUN.
	(iprintf): Avoid overhead.
	* libc/stdio/printf.c (_printf_r): Use _DEFUN.
	(printf): Avoid overhead.
	* libc/stdio/vasiprintf.c (vasiprintf): Reduce binary size.
	* libc/stdio/vasprintf.c (vasprintf): Reduce binary size.
	* libc/stdio/vdiprintf.c (_vdiprintf_r, vdiprintf): New file.
	* libc/stdio/vdprintf.c (vdprintf): Avoid overhead.
	* libc/stdio/vsiprintf.c (vsiprintf): Reduce binary size.
	* libc/stdio/vsniprintf.c (vsniprintf): Reduce binary size.
	* libc/stdio/vsnprintf.c (vsnprintf): Reduce binary size.
	* libc/stdio/vsprintf.c (vsprintf): Reduce binary size.
	* libc/stdio/Makefile.am (GENERAL_SOURCES): Add diprintf.c,
	vdiprintf.c.
	* libc/include/stdio.h (diprintf, _diprintf_r, vdiprintf)
	(_vdiprintf_r, _fiprintf_r, _vfiprintf_r): Add prototypes.
2007-04-04 18:32:49 +00:00

110 lines
2.9 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.
*/
/*
FUNCTION
<<vsniprintf>>---write formatted output (integer only)
INDEX
vsniprintf
ANSI_SYNOPSIS
#include <stdio.h>
int vsniprintf(char *<[str]>, size_t <[size]>, const char *<[fmt]>, va_list <[list]>);
TRAD_SYNOPSIS
#include <stdio.h>
int vsnprintf(<[str]>, <[size]>, <[fmt]>, <[list]>)
char *<[str]>;
size_t <[size]>;
char *<[fmt]>;
va_list <[list]>;
DESCRIPTION
<<vsniprintf>> is a restricted version of <<vsnprintf>>: it has the same
arguments and behavior, save that it cannot perform any floating-point
formatting: the <<f>>, <<g>>, <<G>>, <<e>>, and <<F>> type specifiers
are not recognized.
RETURNS
<<vsniprintf>> returns the number of bytes in the output string,
save that the concluding <<NULL>> is not counted.
<<vsniprintf>> returns when the end of the format string is
encountered.
PORTABILITY
<<vsniprintf>> is not required by ANSI C.
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "%W% (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#include <limits.h>
#include <stdarg.h>
#include <errno.h>
#ifndef _REENT_ONLY
int
_DEFUN(vsniprintf, (str, size, fmt, ap),
char *str _AND
size_t size _AND
const char *fmt _AND
va_list ap)
{
return _vsniprintf_r (_REENT, str, size, fmt, ap);
}
#endif /* !_REENT_ONLY */
int
_DEFUN(_vsniprintf_r, (ptr, str, size, fmt, ap),
struct _reent *ptr _AND
char *str _AND
size_t size _AND
const char *fmt _AND
va_list ap)
{
int ret;
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. */
ret = _vfiprintf_r (ptr, &f, fmt, ap);
if (ret < EOF)
ptr->_errno = EOVERFLOW;
if (size > 0)
*f._p = 0;
return ret;
}