xref: /openbsd-src/bin/rmdir/rmdir.c (revision f2da64fbbbf1b03f09f390ab01267c93dfd77c4c)
1 /*	$OpenBSD: rmdir.c,v 1.12 2016/06/03 23:22:20 tedu Exp $	*/
2 /*	$NetBSD: rmdir.c,v 1.13 1995/03/21 09:08:31 cgd Exp $	*/
3 
4 /*-
5  * Copyright (c) 1992, 1993, 1994
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 <err.h>
34 #include <errno.h>
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38 #include <locale.h>
39 #include <unistd.h>
40 
41 extern char *__progname;
42 
43 int rm_path(char *);
44 void usage(void);
45 
46 int
47 main(int argc, char *argv[])
48 {
49 	int ch, errors;
50 	int pflag;
51 
52 	setlocale(LC_ALL, "");
53 
54 	if (pledge("stdio cpath", NULL) == -1)
55 		err(1, "pledge");
56 
57 	pflag = 0;
58 	while ((ch = getopt(argc, argv, "p")) != -1)
59 		switch(ch) {
60 		case 'p':
61 			pflag = 1;
62 			break;
63 		default:
64 			usage();
65 		}
66 	argc -= optind;
67 	argv += optind;
68 
69 	if (argc == 0)
70 		usage();
71 
72 	for (errors = 0; *argv; argv++) {
73 		char *p;
74 
75 		/* Delete trailing slashes, per POSIX. */
76 		p = *argv + strlen(*argv);
77 		while (--p > *argv && *p == '/')
78 			continue;
79 		*++p = '\0';
80 
81 		if (rmdir(*argv) < 0) {
82 			warn("%s", *argv);
83 			errors = 1;
84 		} else if (pflag)
85 			errors |= rm_path(*argv);
86 	}
87 
88 	return (errors);
89 }
90 
91 int
92 rm_path(char *path)
93 {
94 	char *p;
95 
96 	while ((p = strrchr(path, '/')) != NULL) {
97 		/* Delete trailing slashes. */
98 		while (--p > path && *p == '/')
99 			continue;
100 		*++p = '\0';
101 
102 		if (rmdir(path) < 0) {
103 			warn("%s", path);
104 			return (1);
105 		}
106 	}
107 
108 	return (0);
109 }
110 
111 void
112 usage(void)
113 {
114 	fprintf(stderr, "usage: %s [-p] directory ...\n", __progname);
115 	exit(1);
116 }
117