xref: /openbsd/bin/rmdir/rmdir.c (revision d415bd75)
1 /*	$OpenBSD: rmdir.c,v 1.14 2019/06/28 13:34:59 deraadt 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 <unistd.h>
39 
40 extern char *__progname;
41 
42 int rm_path(char *);
43 static void __dead usage(void);
44 
45 int
46 main(int argc, char *argv[])
47 {
48 	int ch, errors;
49 	int pflag;
50 
51 	if (pledge("stdio cpath", NULL) == -1)
52 		err(1, "pledge");
53 
54 	pflag = 0;
55 	while ((ch = getopt(argc, argv, "p")) != -1)
56 		switch(ch) {
57 		case 'p':
58 			pflag = 1;
59 			break;
60 		default:
61 			usage();
62 		}
63 	argc -= optind;
64 	argv += optind;
65 
66 	if (argc == 0)
67 		usage();
68 
69 	for (errors = 0; *argv; argv++) {
70 		char *p;
71 
72 		/* Delete trailing slashes, per POSIX. */
73 		p = *argv + strlen(*argv);
74 		while (--p > *argv && *p == '/')
75 			continue;
76 		*++p = '\0';
77 
78 		if (rmdir(*argv) == -1) {
79 			warn("%s", *argv);
80 			errors = 1;
81 		} else if (pflag)
82 			errors |= rm_path(*argv);
83 	}
84 
85 	return (errors);
86 }
87 
88 int
89 rm_path(char *path)
90 {
91 	char *p;
92 
93 	while ((p = strrchr(path, '/')) != NULL) {
94 		/* Delete trailing slashes. */
95 		while (--p > path && *p == '/')
96 			continue;
97 		*++p = '\0';
98 
99 		if (rmdir(path) == -1) {
100 			warn("%s", path);
101 			return (1);
102 		}
103 	}
104 
105 	return (0);
106 }
107 
108 static void __dead
109 usage(void)
110 {
111 	fprintf(stderr, "usage: %s [-p] directory ...\n", __progname);
112 	exit(1);
113 }
114