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
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * $FreeBSD: src/usr.bin/biff/biff.c,v 1.6.2.4 2002/08/09 02:56:31 johan Exp $
30 * $DragonFly: src/usr.bin/biff/biff.c,v 1.5 2007/09/16 00:59:59 pavalos Exp $
32 * @(#) Copyright (c) 1980, 1993 The Regents of the University of California. All rights reserved.
33 * @(#)biff.c 8.1 (Berkeley) 6/6/93
36 #include <sys/types.h>
44 static void usage(void);
47 main(int argc, char **argv)
54 while ((ch = getopt(argc, argv, "")) != -1)
63 if ((name = ttyname(STDIN_FILENO)) == NULL &&
64 (name = ttyname(STDOUT_FILENO)) == NULL &&
65 (name = ttyname(STDERR_FILENO)) == NULL)
66 err(2, "unknown tty");
69 err(2, "stat failed");
73 sb.st_mode & S_IXUSR ? "y" :
74 sb.st_mode & S_IXGRP ? "b" : "n");
75 return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1);
80 if (chmod(name, sb.st_mode & ~(S_IXUSR | S_IXGRP)) < 0)
84 if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXUSR) < 0)
88 if (chmod(name, (sb.st_mode & ~(S_IXUSR | S_IXGRP)) | S_IXGRP) < 0)
94 return(sb.st_mode & (S_IXUSR | S_IXGRP) ? 0 : 1);
100 fprintf(stderr, "usage: biff [n | y | b]\n");