GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/biff/biff.c Lines: 0 23 0.0 %
Date: 2016-12-06 Branches: 0 19 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: biff.c,v 1.15 2016/07/07 09:26:25 semarie Exp $	*/
2
/*	$NetBSD: biff.c,v 1.3 1995/03/26 02:34:22 glass Exp $	*/
3
4
/*
5
 * Copyright (c) 1980, 1993
6
 *	The Regents of the University of California.  All rights reserved.
7
 *
8
 * Redistribution and use in source and binary forms, with or without
9
 * modification, are permitted provided that the following conditions
10
 * are met:
11
 * 1. Redistributions of source code must retain the above copyright
12
 *    notice, this list of conditions and the following disclaimer.
13
 * 2. Redistributions in binary form must reproduce the above copyright
14
 *    notice, this list of conditions and the following disclaimer in the
15
 *    documentation and/or other materials provided with the distribution.
16
 * 3. Neither the name of the University nor the names of its contributors
17
 *    may be used to endorse or promote products derived from this software
18
 *    without specific prior written permission.
19
 *
20
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30
 * SUCH DAMAGE.
31
 */
32
33
#include <sys/types.h>
34
#include <sys/stat.h>
35
36
#include <err.h>
37
#include <errno.h>
38
#include <stdio.h>
39
#include <stdlib.h>
40
#include <string.h>
41
#include <unistd.h>
42
43
static void usage(void);
44
45
int
46
main(int argc, char *argv[])
47
{
48
	struct stat sb;
49
	int ch;
50
	char *name;
51
52
	if (pledge("stdio rpath fattr wpath cpath", NULL) == -1)
53
		err(2, "pledge");
54
55
	while ((ch = getopt(argc, argv, "")) != -1)
56
		switch(ch) {
57
		case '?':
58
		default:
59
			usage();
60
		}
61
	argc -= optind;
62
	argv += optind;
63
64
	if ((name = ttyname(STDERR_FILENO)) == NULL)
65
		err(2, "tty");
66
67
	if (stat(name, &sb))
68
		err(2, "stat");
69
70
	sb.st_mode &= ACCESSPERMS;
71
72
	if (*argv == NULL) {
73
		(void)printf("is %s\n", sb.st_mode & S_IXUSR ? "y" : "n");
74
		exit(sb.st_mode & S_IXUSR ? 0 : 1);
75
	}
76
77
	switch(argv[0][0]) {
78
	case 'n':
79
		if (chmod(name, sb.st_mode & ~S_IXUSR) < 0)
80
			err(2, "%s", name);
81
		break;
82
	case 'y':
83
		if (chmod(name, sb.st_mode | S_IXUSR) < 0)
84
			err(2, "%s", name);
85
		break;
86
	default:
87
		usage();
88
	}
89
	exit(sb.st_mode & S_IXUSR ? 0 : 1);
90
}
91
92
static void
93
usage(void)
94
{
95
	(void)fprintf(stderr, "usage: biff [n | y]\n");
96
	exit(2);
97
}