libguile/strerror.c

   1 /* Turning errno values into English error messages.
   2    Copyright (C) 1985, 86, 87, 88, 93, 94, 95, 2000, 2001, 2006 Free Software Foundation, Inc.
   3
   4    This library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public License
   6    as published by the Free Software Foundation; either version 3 of
   7    the License, or (at your option) any later version.
   8
   9    This library is distributed in the hope that it will be useful, but
  10    WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with this library; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17    02110-1301 USA
  18 */
  19
  20 char *
  21 strerror (int errnum)
  22 {
  23   extern char *sys_errlist[];
  24   extern int sys_nerr;
  25
  26   if (errnum >= 0 && errnum < sys_nerr)
  27     return sys_errlist[errnum];
  28   return (char *) "Unknown error";
  29 }
  30
  31 /*
  32   Local Variables:
  33   c-file-style: "gnu"
  34   End:
  35 */