xref: /illumos-gate/usr/src/ucbcmd/biff/biff.c (revision f22acdff)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 
23 /*
24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
25  * Use is subject to license terms.
26  */
27 
28 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
29 /*	  All Rights Reserved  	*/
30 
31 /*
32  * University Copyright- Copyright (c) 1982, 1986, 1988
33  * The Regents of the University of California
34  * All Rights Reserved
35  *
36  * University Acknowledgment- Portions of this document are derived from
37  * software developed by the University of California, Berkeley, and its
38  * contributors.
39  */
40 
41 #pragma ident	"%Z%%M%	%I%	%E% SMI"
42 
43 /*
44  * biff
45  */
46 
47 #include <stdlib.h>
48 #include <unistd.h>
49 #include <sys/types.h>
50 #include <sys/stat.h>
51 #include <stdio.h>
52 #include <locale.h>
53 
54 int
main(int argc,char ** argv)55 main(int argc, char **argv)
56 {
57 	char *cp = ttyname(2);
58 	struct stat stb;
59 
60 	(void) setlocale(LC_ALL, "");
61 
62 #if !defined(TEXT_DOMAIN)
63 #define	TEXT_DOMAIN "SYS_TEST"
64 #endif
65 	(void) textdomain(TEXT_DOMAIN);
66 
67 	argc--, argv++;
68 	if (cp == 0) {
69 		(void) fprintf(stderr,
70 			gettext("biff failed:  cannot locate your tty:  "
71 				"ttyname() for file descriptor 2 returned"
72 				" NULL\n"));
73 		exit(1);
74 	}
75 	if (stat(cp, &stb) < 0)
76 		perror(cp), exit(1);
77 	if (argc == 0) {
78 		(void) printf("is %s\n",
79 			stb.st_mode&0100 ? gettext("y") : gettext("n"));
80 		exit((stb.st_mode&0100) ? 0 : 1);
81 	}
82 	switch (argv[0][0]) {
83 
84 	case 'y':
85 		if (chmod(cp, stb.st_mode|0100) < 0)
86 			perror(cp);
87 		break;
88 
89 	case 'n':
90 		if (chmod(cp, stb.st_mode&~0100) < 0)
91 			perror(cp);
92 		break;
93 
94 	default:
95 		(void) fprintf(stderr, gettext("usage: biff [y] [n]\n"));
96 	}
97 	return ((stb.st_mode&0100) ? 0 : 1);
98 }
99