Commit | Line | Data |
---|---|---|
8e68d1c8 | 1 | /* |
996b65c8 | 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
1e307fab | 3 | * 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 | 32 | /* |
050349bb | 33 | * Return pointer to home directory path using the env variable HOME. |
b082db07 | 34 | * |
050349bb | 35 | * No home, NULL is returned. |
b082db07 DG |
36 | */ |
37 | const char *get_home_dir(void) | |
38 | { | |
39 | return ((const char *) getenv("HOME")); | |
40 | } | |
41 | ||
42 | /* | |
050349bb | 43 | * Create recursively directory using the FULL path. |
b082db07 | 44 | */ |
996b65c8 | 45 | int mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid) |
8e68d1c8 | 46 | { |
49a1d1ed MD |
47 | int ret; |
48 | char *p, tmp[PATH_MAX]; | |
49 | size_t len; | |
50 | mode_t old_umask; | |
8e68d1c8 | 51 | |
49a1d1ed | 52 | ret = snprintf(tmp, sizeof(tmp), "%s", path); |
8e68d1c8 DG |
53 | if (ret < 0) { |
54 | perror("snprintf mkdir"); | |
55 | goto error; | |
56 | } | |
57 | ||
49a1d1ed MD |
58 | len = ret; |
59 | if (tmp[len - 1] == '/') { | |
60 | tmp[len - 1] = 0; | |
61 | } | |
8e68d1c8 | 62 | |
49a1d1ed MD |
63 | old_umask = umask(0); |
64 | for (p = tmp + 1; *p; p++) { | |
65 | if (*p == '/') { | |
66 | *p = 0; | |
67 | ret = mkdir(tmp, mode); | |
68 | if (ret < 0) { | |
69 | if (!(errno == EEXIST)) { | |
8e68d1c8 | 70 | perror("mkdir recursive"); |
996b65c8 MD |
71 | ret = -errno; |
72 | goto umask_error; | |
73 | } | |
74 | } else if (ret == 0) { | |
75 | /* | |
050349bb DG |
76 | * We created the directory. Set its ownership to the |
77 | * user/group specified. | |
996b65c8 MD |
78 | */ |
79 | ret = chown(tmp, uid, gid); | |
80 | if (ret < 0) { | |
81 | perror("chown in mkdir recursive"); | |
82 | ret = -errno; | |
49a1d1ed MD |
83 | goto umask_error; |
84 | } | |
85 | } | |
86 | *p = '/'; | |
87 | } | |
88 | } | |
8e68d1c8 | 89 | |
49a1d1ed | 90 | ret = mkdir(tmp, mode); |
8e68d1c8 | 91 | if (ret < 0) { |
996b65c8 MD |
92 | ret = -errno; |
93 | } else if (ret == 0) { | |
94 | /* | |
050349bb DG |
95 | * We created the directory. Set its ownership to the user/group |
96 | * specified. | |
996b65c8 MD |
97 | */ |
98 | ret = chown(tmp, uid, gid); | |
99 | if (ret < 0) { | |
100 | perror("chown in mkdir recursive"); | |
101 | ret = -errno; | |
102 | goto umask_error; | |
103 | } | |
8e68d1c8 DG |
104 | } |
105 | ||
106 | umask_error: | |
107 | umask(old_umask); | |
108 | error: | |
49a1d1ed | 109 | return ret; |
8e68d1c8 | 110 | } |