vasprintf.c 1.37 KB
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/*****************************************************************************
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 * vasprintf.c: GNU vasprintf() replacement
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 *****************************************************************************
 * Copyright © 1998-2008 the VideoLAN project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU 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 <stdarg.h>

int vasprintf (char **strp, const char *fmt, va_list ap)
{
    ssize_t len = vsnprintf (NULL, 0, fmt, ap) + 1;
    char *res = malloc (len);
    if (res == NULL)
        return -1;
    *strp = res;
    return vsnprintf (res, len, fmt, ap);
}