glibc/support/xasprintf.c

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/* Error-checking wrapper for asprintf.
Copyright (C) 2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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 of the License, or (at your option) any later version.
The GNU C Library 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 the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <support/support.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
char *
xasprintf (const char *format, ...)
{
va_list ap;
va_start (ap, format);
char *result;
if (vasprintf (&result, format, ap) < 0)
{
printf ("error: asprintf: %m\n");
exit (1);
}
va_end (ap);
return result;
}