71 lines
1.8 KiB
C
71 lines
1.8 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.
|
|
*/
|
|
/* doc in viprintf.c */
|
|
|
|
#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>
|
|
|
|
#include "local.h"
|
|
|
|
#ifndef _REENT_ONLY
|
|
|
|
int
|
|
vsniprintf (char *str,
|
|
size_t size,
|
|
const char *fmt,
|
|
va_list ap)
|
|
{
|
|
return _vsniprintf_r (_REENT, str, size, fmt, ap);
|
|
}
|
|
|
|
#endif /* !_REENT_ONLY */
|
|
|
|
int
|
|
_vsniprintf_r (struct _reent *ptr,
|
|
char *str,
|
|
size_t size,
|
|
const char *fmt,
|
|
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 = _svfiprintf_r (ptr, &f, fmt, ap);
|
|
if (ret < EOF)
|
|
ptr->_errno = EOVERFLOW;
|
|
if (size > 0)
|
|
*f._p = 0;
|
|
return ret;
|
|
}
|