extra/inetutils/libinetutils/strerror.c

   1 /* strerror.c --- ANSI C compatible system error routine
   2
   3    Copyright (C) 1986, 1988, 1989, 1991, 2002 Free Software Foundation, Inc.
   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 2, or (at your option)
   8    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, write to the Free Software Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 #if 0
  20 # include <stdio.h>
  21 #endif
  22
  23 extern int sys_nerr;
  24 extern char *sys_errlist[];
  25
  26 char *
  27 strerror(n)
  28 int n;
  29 {
  30         static char mesg[30];
  31
  32         if (n < 0 || n >= sys_nerr) {
  33                 sprintf(mesg, "Unknown error (%d)", n);
  34                 return mesg;
  35         } else
  36                 return sys_errlist[n];
  37 }