gl/perror.c

   1 /* Print a message describing error code.
   2    Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
   3    Written by Bruno Haible and Simon Josefsson.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 /* Specification.  */
  21 #include <stdio.h>
  22
  23 #include <errno.h>
  24 #include <string.h>
  25
  26 void
  27 perror (const char *string)
  28 {
  29   const char *errno_description = strerror (errno);
  30
  31   if (string != NULL && *string != '\0')
  32     fprintf (stderr, "%s: %s\n", string, errno_description);
  33   else
  34     fprintf (stderr, "%s\n", errno_description);
  35 }