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/*****************************************************************************
* 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;
}
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