glibc/support/xfgets.c

/* fgets with error checking.
   Copyright (C) 2023-2024 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
   <https://www.gnu.org/licenses/>.  */

#include <support/xstdio.h>

#include <support/check.h>
#include <stdlib.h>

char *
xfgets (char *s, int size, FILE *stream)
{
  char *ret = fgets (s, size, stream);
  if (!ret && ferror(stream))
    FAIL_EXIT1 ("fgets failed: %m");

  return ret;
}