mirror of https://code.videolan.org/videolan/vlc
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*****************************************************************************
|
|
* vasprintf.c: GNU vasprintf() replacement
|
|
*****************************************************************************
|
|
* Copyright © 1998-2009 VLC authors and VideoLAN
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation; either version 2.1 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
|
|
*****************************************************************************/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <stdarg.h>
|
|
#include <assert.h>
|
|
|
|
int vasprintf (char **strp, const char *fmt, va_list ap)
|
|
{
|
|
va_list args;
|
|
int len;
|
|
|
|
va_copy (args, ap);
|
|
len = vsnprintf (NULL, 0, fmt, args);
|
|
va_end (args);
|
|
|
|
char *str = malloc (len + 1);
|
|
if (str != NULL)
|
|
{
|
|
int len2;
|
|
|
|
va_copy (args, ap);
|
|
len2 = vsprintf (str, fmt, args);
|
|
assert (len2 == len);
|
|
va_end (args);
|
|
}
|
|
else
|
|
{
|
|
len = -1;
|
|
#ifndef NDEBUG
|
|
str = (void *)(intptr_t)0x41414141; /* poison */
|
|
#endif
|
|
}
|
|
*strp = str;
|
|
return len;
|
|
}
|