mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-29 12:03:03 +00:00
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* $OpenBSD: vasprintf.c,v 1.4 1998/06/21 22:13:47 millert Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
|
|
* All rights reserved.
|
|
*
|
|
* 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. The name of the author 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 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 AUTHOR 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include "local.h"
|
|
|
|
int
|
|
vasprintf(str, fmt, ap)
|
|
char **str;
|
|
const char *fmt;
|
|
__va_list ap;
|
|
{
|
|
int ret;
|
|
FILE f;
|
|
struct __sFILEX ext;
|
|
|
|
f._file = -1;
|
|
f._flags = __SWR | __SSTR | __SALC;
|
|
f._bf._base = f._p = (unsigned char *)malloc(128);
|
|
if (f._bf._base == NULL) {
|
|
*str = NULL;
|
|
errno = ENOMEM;
|
|
return (-1);
|
|
}
|
|
f._bf._size = f._w = 127; /* Leave room for the NUL */
|
|
f._extra = &ext;
|
|
INITEXTRA(&f);
|
|
ret = __vfprintf(&f, fmt, ap);
|
|
if (ret < 0) {
|
|
free(f._bf._base);
|
|
*str = NULL;
|
|
errno = ENOMEM;
|
|
return (-1);
|
|
}
|
|
*f._p = '\0';
|
|
*str = (char *)f._bf._base;
|
|
return (ret);
|
|
}
|