strerror.c


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/* strerror.c -- convert errno value into a string
   Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

char *strerror(errnum)
int errnum;
{
        extern char *sys_errlist[];
        extern int sys_nerr;

        if (errnum > 0 && errnum < sys_nerr)
                return sys_errlist[errnum];
        return "Unknown system error";
}