support/xasprintf.c

   1 /* Error-checking wrapper for asprintf.
   2    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <support/support.h>
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <support/check.h>
  25
  26 char *
  27 xasprintf (const char *format, ...)
  28 {
  29   va_list ap;
  30   va_start (ap, format);
  31   char *result;
  32   if (vasprintf (&result, format, ap) < 0)
  33     FAIL_EXIT1 ("asprintf: %m");
  34   va_end (ap);
  35   return result;
  36 }