gnu/dist/gettext/gettext-runtime/libasprintf/vasprintf.c

   1 /* Formatted output to strings.
   2    Copyright (C) 1999, 2002 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify it
   5    under the terms of the GNU Library General Public License as published
   6    by the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with this program; if not, write to the Free Software
  16    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17    USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22
  23 /* Specification.  */
  24 #include "vasprintf.h"
  25
  26 #include <stdlib.h>
  27
  28 #include "vasnprintf.h"
  29
  30 int
  31 vasprintf (char **resultp, const char *format, va_list args)
  32 {
  33   size_t length;
  34   char *result = vasnprintf (NULL, &length, format, args);
  35   if (result == NULL)
  36     return -1;
  37
  38   *resultp = result;
  39   /* Return the number of resulting bytes, excluding the trailing NUL.
  40      If it wouldn't fit in an 'int', vasnprintf() would have returned NULL
  41      and set errno to EOVERFLOW.  */
  42   return length;
  43 }