NetBSD/gnu/dist/gawk/missing/strerror.c

38 lines
1.1 KiB
C

/* strerror.c --- ANSI C compatible system error routine
Copyright (C) 1986, 1988, 1989, 1991 the 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#if 0
#include <stdio.h>
#endif
extern int sys_nerr;
extern char *sys_errlist[];
char *
strerror(n)
int n;
{
static char mesg[30];
if (n < 0 || n >= sys_nerr) {
sprintf(mesg, "Unknown error (%d)", n);
return mesg;
} else
return sys_errlist[n];
}