Thanks to
[project/opkg-lede.git] / libbb / make_directory.c
1 /* vi: set sw=4 ts=4: */
2 /*
3 * Mini make_directory implementation for busybox
4 *
5 * Copyright (C) 2001 Matt Kraai.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <sys/stat.h>
26 #include <sys/types.h>
27 #include <unistd.h>
28 #include <stdlib.h>
29
30 #include "libbb.h"
31
32 /* Create the directory PATH with mode MODE, or the default if MODE is -1.
33 * Also create parent directories as necessary if flags contains
34 * FILEUTILS_RECUR. */
35
36 int make_directory (const char *path, long mode, int flags)
37 {
38 if (!(flags & FILEUTILS_RECUR)) {
39 if (mkdir (path, 0777) < 0) {
40 perror_msg ("Cannot create directory `%s'", path);
41 return -1;
42 }
43
44 if (mode != -1 && chmod (path, mode) < 0) {
45 perror_msg ("Cannot set permissions of directory `%s'", path);
46 return -1;
47 }
48 } else {
49 struct stat st;
50
51 if (stat (path, &st) < 0 && errno == ENOENT) {
52 int status;
53 char *pathcopy, *parent, *parentcopy;
54 mode_t mask;
55
56 mask = umask (0);
57 umask (mask);
58
59 /* dirname is unsafe, it may both modify the
60 memory of the path argument and may return
61 a pointer to static memory, which can then
62 be modified by consequtive calls to dirname */
63
64 pathcopy = xstrdup (path);
65 parent = dirname (pathcopy);
66 parentcopy = xstrdup (parent);
67 status = make_directory (parentcopy, (0777 & ~mask)
68 | 0300, FILEUTILS_RECUR);
69 free (pathcopy);
70 free (parentcopy);
71
72
73 if (status < 0 || make_directory (path, mode, 0) < 0)
74 return -1;
75 }
76 }
77
78 return 0;
79 }