Commit | Line | Data |
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8e68d1c8 | 1 | /* |
996b65c8 MD |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
3 | * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
8e68d1c8 DG |
4 | * |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
82a3637f DG |
7 | * as published by the Free Software Foundation; only version 2 |
8 | * of the License. | |
8e68d1c8 DG |
9 | * |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | */ | |
19 | ||
20 | #define _GNU_SOURCE | |
21 | #include <errno.h> | |
22 | #include <limits.h> | |
23 | #include <stdio.h> | |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
26 | #include <sys/types.h> | |
27 | #include <sys/stat.h> | |
28 | #include <unistd.h> | |
29 | ||
30 | #include "utils.h" | |
31 | ||
b082db07 DG |
32 | /* |
33 | * get_home_dir | |
34 | * | |
35 | * Return pointer to home directory path using the env variable HOME. | |
36 | * No home, NULL is returned. | |
37 | */ | |
38 | const char *get_home_dir(void) | |
39 | { | |
40 | return ((const char *) getenv("HOME")); | |
41 | } | |
42 | ||
43 | /* | |
44 | * mkdir_recursive | |
45 | * | |
46 | * Create recursively directory using the FULL path. | |
47 | */ | |
996b65c8 | 48 | int mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid) |
8e68d1c8 | 49 | { |
49a1d1ed MD |
50 | int ret; |
51 | char *p, tmp[PATH_MAX]; | |
52 | size_t len; | |
53 | mode_t old_umask; | |
8e68d1c8 | 54 | |
49a1d1ed | 55 | ret = snprintf(tmp, sizeof(tmp), "%s", path); |
8e68d1c8 DG |
56 | if (ret < 0) { |
57 | perror("snprintf mkdir"); | |
58 | goto error; | |
59 | } | |
60 | ||
49a1d1ed MD |
61 | len = ret; |
62 | if (tmp[len - 1] == '/') { | |
63 | tmp[len - 1] = 0; | |
64 | } | |
8e68d1c8 | 65 | |
49a1d1ed MD |
66 | old_umask = umask(0); |
67 | for (p = tmp + 1; *p; p++) { | |
68 | if (*p == '/') { | |
69 | *p = 0; | |
70 | ret = mkdir(tmp, mode); | |
71 | if (ret < 0) { | |
72 | if (!(errno == EEXIST)) { | |
8e68d1c8 | 73 | perror("mkdir recursive"); |
996b65c8 MD |
74 | ret = -errno; |
75 | goto umask_error; | |
76 | } | |
77 | } else if (ret == 0) { | |
78 | /* | |
79 | * We created the directory. Set its | |
80 | * ownership to the user/group | |
81 | * specified. | |
82 | */ | |
83 | ret = chown(tmp, uid, gid); | |
84 | if (ret < 0) { | |
85 | perror("chown in mkdir recursive"); | |
86 | ret = -errno; | |
49a1d1ed MD |
87 | goto umask_error; |
88 | } | |
89 | } | |
90 | *p = '/'; | |
91 | } | |
92 | } | |
8e68d1c8 | 93 | |
49a1d1ed | 94 | ret = mkdir(tmp, mode); |
8e68d1c8 | 95 | if (ret < 0) { |
996b65c8 MD |
96 | ret = -errno; |
97 | } else if (ret == 0) { | |
98 | /* | |
99 | * We created the directory. Set its ownership to the | |
100 | * user/group specified. | |
101 | */ | |
102 | ret = chown(tmp, uid, gid); | |
103 | if (ret < 0) { | |
104 | perror("chown in mkdir recursive"); | |
105 | ret = -errno; | |
106 | goto umask_error; | |
107 | } | |
8e68d1c8 DG |
108 | } |
109 | ||
110 | umask_error: | |
111 | umask(old_umask); | |
112 | error: | |
49a1d1ed | 113 | return ret; |
8e68d1c8 | 114 | } |