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/* Formatted output to strings.
Copyright (C) 1999, 2002, 2006 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2, 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
Library General Public License for more details.
You should have received a copy of the GNU Library 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
/* Specification. */
#include "vasprintf.h"
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include "vasnprintf.h"
/* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */
#ifndef EOVERFLOW
# define EOVERFLOW E2BIG
#endif
int
vasprintf (char **resultp, const char *format, va_list args)
{
size_t length;
char *result = vasnprintf (NULL, &length, format, args);
if (result == NULL)
return -1;
if (length > INT_MAX)
{
free (result);
errno = EOVERFLOW;
return -1;
}
*resultp = result;
/* Return the number of resulting bytes, excluding the trailing NUL. */
return length;
}
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