libc/stdio/perror.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   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
  19
  20 #include <errno.h>
  21 #include <stdio.h>
  22 #include <errno.h>
  23
  24 extern int errno;
  25
  26 static char *errno_list[] = { "Undefined error",
  27                               "Out of the memory" };
  28
  29 void perror (const char *s)
  30 {
  31         if (s)
  32                 printf ("%s: ", s);
  33
  34         /* TODO more errno messages */
  35         switch (errno) {
  36                 case ENOMEM:
  37                         puts (errno_list[1]);
  38                         break;
  39                 default:
  40                         puts (errno_list[0]);
  41         }
  42 }