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 *	$NetBSD$
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("$NetBSD$");
38
39#include <sys/types.h>
40#include <sys/stat.h>
41#include <err.h>
42#include <errno.h>
43#include <string.h>
44
45int	mkpath(char *);
46
47/* Code taken directly from mkdir(1).
48
49 * mkpath -- create directories.
50 *	path     - path
51 */
52int
53mkpath(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