/* Formatted output to strings.

   Copyright (C) 1999, 2002, 2006-2020 Free Software Foundation, Inc.

   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, 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, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

/* Specification.  */

#ifdef IN_LIBASPRINTF

# include "vasprintf.h"

#else

# include <stdio.h>

#endif

#include <errno.h>

#include <limits.h>

#include <stdlib.h>

#include "vasnprintf.h"

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;

}