xref: /netbsd/usr.bin/patch/mkpath.c (revision 6550d01e)
1 /*
2  *	$OpenBSD: mkpath.c,v 1.2 2005/06/20 07:14:06 otto Exp $
3  *	$DragonFly: src/usr.bin/patch/mkpath.c,v 1.1 2007/09/29 23:11:10 swildner Exp $
4  *	$NetBSD: mkpath.c,v 1.1 2008/09/19 18:33:34 joerg Exp $
5  */
6 
7 /*
8  * Copyright (c) 1983, 1992, 1993
9  *	The Regents of the University of California.  All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 __RCSID("$NetBSD: mkpath.c,v 1.1 2008/09/19 18:33:34 joerg Exp $");
38 
39 #include <sys/types.h>
40 #include <sys/stat.h>
41 #include <err.h>
42 #include <errno.h>
43 #include <string.h>
44 
45 int	mkpath(char *);
46 
47 /* Code taken directly from mkdir(1).
48 
49  * mkpath -- create directories.
50  *	path     - path
51  */
52 int
53 mkpath(char *path)
54 {
55 	struct stat sb;
56 	char *slash;
57 	int done = 0;
58 
59 	slash = path;
60 
61 	while (!done) {
62 		slash += strspn(slash, "/");
63 		slash += strcspn(slash, "/");
64 
65 		done = (*slash == '\0');
66 		*slash = '\0';
67 
68 		if (stat(path, &sb)) {
69 			if (errno != ENOENT || (mkdir(path, 0777) &&
70 			    errno != EEXIST)) {
71 				warn("%s", path);
72 				return (-1);
73 			}
74 		} else if (!S_ISDIR(sb.st_mode)) {
75 			warnx("%s: %s", path, strerror(ENOTDIR));
76 			return (-1);
77 		}
78 
79 		*slash = '/';
80 	}
81 
82 	return (0);
83 }
84 
85