The historic and deprecated setgrfile() function never existed in
[dragonfly.git] / usr.bin / biff / biff.c
blob9fb424bfbeea10e93421073136f080c831f12daf
1 /*
2 * Copyright (c) 1980, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
33 * $FreeBSD: src/usr.bin/biff/biff.c,v 1.6.2.4 2002/08/09 02:56:31 johan Exp $
34 * $DragonFly: src/usr.bin/biff/biff.c,v 1.5 2007/09/16 00:59:59 pavalos Exp $
36 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
37 * @(#)biff.c 8.1 (Berkeley) 6/6/93
40 #include <sys/types.h>
41 #include <sys/stat.h>
43 #include <err.h>
44 #include <stdio.h>
45 #include <stdlib.h>
46 #include <unistd.h>
48 static void usage(void);
50 int
51 main(int argc, char **argv)
53 struct stat sb;
54 int ch;
55 const char *name;
58 while ((ch = getopt(argc, argv, "")) != -1)
59 switch(ch) {
60 case '?':
61 default:
62 usage();
64 argc -= optind;
65 argv += optind;
67 if ((name = ttyname(STDIN_FILENO)) == NULL &&
68 (name = ttyname(STDOUT_FILENO)) == NULL &&
69 (name = ttyname(STDERR_FILENO)) == NULL)
70 err(2, "unknown tty");
72 if (stat(name, &sb))
73 err(2, "stat failed");
75 if (*argv == NULL) {
76 printf("is %s\n",
77 sb.st_mode & S_IXUSR ? "y" :
78 sb.st_mode & S_IXGRP ? "b" : "n");
79 return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1);
82 switch(argv[0][0]) {
83 case 'n':
84 if (chmod(name, sb.st_mode & ~(S_IXUSR | S_IXGRP)) < 0)
85 err(2, "%s", name);
86 break;
87 case 'y':
88 if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXUSR) < 0)
89 err(2, "%s", name);
90 break;
91 case 'b':
92 if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXGRP) < 0)
93 err(2, "%s", name);
94 break;
95 default:
96 usage();
98 return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1);
101 static void
102 usage(void)
104 fprintf(stderr, "usage: biff [n | y | b]\n");
105 exit(2);