xref: /openbsd-src/usr.bin/patch/mkpath.c (revision 5ad04d351680822078003e2b066cfc9680d6157d)
1*5ad04d35Sguenther /*	$OpenBSD: mkpath.c,v 1.4 2014/05/20 01:25:23 guenther Exp $ */
2a6dfabdaSespie /*
3a6dfabdaSespie  * Copyright (c) 1983, 1992, 1993
4a6dfabdaSespie  *	The Regents of the University of California.  All rights reserved.
5a6dfabdaSespie  *
6a6dfabdaSespie  * Redistribution and use in source and binary forms, with or without
7a6dfabdaSespie  * modification, are permitted provided that the following conditions
8a6dfabdaSespie  * are met:
9a6dfabdaSespie  * 1. Redistributions of source code must retain the above copyright
10a6dfabdaSespie  *    notice, this list of conditions and the following disclaimer.
11a6dfabdaSespie  * 2. Redistributions in binary form must reproduce the above copyright
12a6dfabdaSespie  *    notice, this list of conditions and the following disclaimer in the
13a6dfabdaSespie  *    documentation and/or other materials provided with the distribution.
14a6dfabdaSespie  * 3. Neither the name of the University nor the names of its contributors
15a6dfabdaSespie  *    may be used to endorse or promote products derived from this software
16a6dfabdaSespie  *    without specific prior written permission.
17a6dfabdaSespie  *
18a6dfabdaSespie  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19a6dfabdaSespie  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20a6dfabdaSespie  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21a6dfabdaSespie  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22a6dfabdaSespie  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23a6dfabdaSespie  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24a6dfabdaSespie  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25a6dfabdaSespie  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26a6dfabdaSespie  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27a6dfabdaSespie  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28a6dfabdaSespie  * SUCH DAMAGE.
29a6dfabdaSespie  */
30a6dfabdaSespie 
31a6dfabdaSespie #include <sys/types.h>
32a6dfabdaSespie #include <sys/stat.h>
33a6dfabdaSespie #include <err.h>
34a6dfabdaSespie #include <errno.h>
35a6dfabdaSespie #include <string.h>
36a6dfabdaSespie 
3717769931Sderaadt #include "common.h"
3817769931Sderaadt #include "util.h"
3917769931Sderaadt 
40a6dfabdaSespie /* Code taken directly from mkdir(1).
41a6dfabdaSespie 
42a6dfabdaSespie  * mkpath -- create directories.
43a6dfabdaSespie  *	path     - path
44a6dfabdaSespie  */
45a6dfabdaSespie int
mkpath(char * path)466fd3743fSotto mkpath(char *path)
47a6dfabdaSespie {
48a6dfabdaSespie 	struct stat sb;
49a6dfabdaSespie 	char *slash;
50a6dfabdaSespie 	int done = 0;
51a6dfabdaSespie 
52a6dfabdaSespie 	slash = path;
53a6dfabdaSespie 
54a6dfabdaSespie 	while (!done) {
55a6dfabdaSespie 		slash += strspn(slash, "/");
56a6dfabdaSespie 		slash += strcspn(slash, "/");
57a6dfabdaSespie 
58a6dfabdaSespie 		done = (*slash == '\0');
59a6dfabdaSespie 		*slash = '\0';
60a6dfabdaSespie 
61a6dfabdaSespie 		if (stat(path, &sb)) {
626fd3743fSotto 			if (errno != ENOENT || (mkdir(path, 0777) &&
63a6dfabdaSespie 			    errno != EEXIST)) {
64a6dfabdaSespie 				warn("%s", path);
65a6dfabdaSespie 				return (-1);
66a6dfabdaSespie 			}
67a6dfabdaSespie 		} else if (!S_ISDIR(sb.st_mode)) {
68*5ad04d35Sguenther 			warnc(ENOTDIR, "%s", path);
69a6dfabdaSespie 			return (-1);
70a6dfabdaSespie 		}
71a6dfabdaSespie 
72a6dfabdaSespie 		*slash = '/';
73a6dfabdaSespie 	}
74a6dfabdaSespie 
75a6dfabdaSespie 	return (0);
76a6dfabdaSespie }
77a6dfabdaSespie 
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