freebsd-skq/contrib/groff/libgroff/strerror.c
2000-01-12 09:51:43 +00:00

42 lines
1.2 KiB
C

/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff 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.
groff 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 groff; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <stdio.h>
#define INT_DIGITS 19 /* enough for 64 bit integer */
#ifndef HAVE_SYS_NERR
extern int sys_nerr;
#endif
#ifndef HAVE_SYS_ERRLIST
extern char *sys_errlist[];
#endif
char *strerror(n)
int n;
{
static char buf[sizeof("Error ") + 1 + INT_DIGITS];
if (n >= 0 && n < sys_nerr && sys_errlist[n] != 0)
return sys_errlist[n];
else {
sprintf(buf, "Error %d", n);
return buf;
}
}