biff.c revision f22acdfff536d452df49dd85c5ecd42092b8fcad
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* biff
*/
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <locale.h>
int
main(int argc, char **argv)
{
char *cp = ttyname(2);
struct stat stb;
(void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
(void) textdomain(TEXT_DOMAIN);
argc--, argv++;
if (cp == 0) {
(void) fprintf(stderr,
gettext("biff failed: cannot locate your tty: "
"ttyname() for file descriptor 2 returned"
" NULL\n"));
exit(1);
}
if (stat(cp, &stb) < 0)
perror(cp), exit(1);
if (argc == 0) {
(void) printf("is %s\n",
stb.st_mode&0100 ? gettext("y") : gettext("n"));
exit((stb.st_mode&0100) ? 0 : 1);
}
switch (argv[0][0]) {
case 'y':
if (chmod(cp, stb.st_mode|0100) < 0)
perror(cp);
break;
case 'n':
if (chmod(cp, stb.st_mode&~0100) < 0)
perror(cp);
break;
default:
(void) fprintf(stderr, gettext("usage: biff [y] [n]\n"));
}
return ((stb.st_mode&0100) ? 0 : 1);
}