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 | ||
54d01ffb DG |
32 | /* |
33 | * Write to writable pipe used to notify a thread. | |
34 | */ | |
35 | int notify_thread_pipe(int wpipe) | |
36 | { | |
37 | int ret; | |
38 | ||
39 | ret = write(wpipe, "!", 1); | |
40 | if (ret < 0) { | |
41 | perror("write poll pipe"); | |
42 | } | |
43 | ||
44 | return ret; | |
45 | } | |
46 | ||
b082db07 | 47 | /* |
050349bb | 48 | * Return pointer to home directory path using the env variable HOME. |
b082db07 | 49 | * |
050349bb | 50 | * No home, NULL is returned. |
b082db07 DG |
51 | */ |
52 | const char *get_home_dir(void) | |
53 | { | |
54 | return ((const char *) getenv("HOME")); | |
55 | } | |
56 | ||
57 | /* | |
050349bb | 58 | * Create recursively directory using the FULL path. |
b082db07 | 59 | */ |
996b65c8 | 60 | int mkdir_recursive(const char *path, mode_t mode, uid_t uid, gid_t gid) |
8e68d1c8 | 61 | { |
49a1d1ed MD |
62 | int ret; |
63 | char *p, tmp[PATH_MAX]; | |
64 | size_t len; | |
65 | mode_t old_umask; | |
8e68d1c8 | 66 | |
49a1d1ed | 67 | ret = snprintf(tmp, sizeof(tmp), "%s", path); |
8e68d1c8 DG |
68 | if (ret < 0) { |
69 | perror("snprintf mkdir"); | |
70 | goto error; | |
71 | } | |
72 | ||
49a1d1ed MD |
73 | len = ret; |
74 | if (tmp[len - 1] == '/') { | |
75 | tmp[len - 1] = 0; | |
76 | } | |
8e68d1c8 | 77 | |
49a1d1ed MD |
78 | old_umask = umask(0); |
79 | for (p = tmp + 1; *p; p++) { | |
80 | if (*p == '/') { | |
81 | *p = 0; | |
82 | ret = mkdir(tmp, mode); | |
83 | if (ret < 0) { | |
84 | if (!(errno == EEXIST)) { | |
8e68d1c8 | 85 | perror("mkdir recursive"); |
996b65c8 MD |
86 | ret = -errno; |
87 | goto umask_error; | |
88 | } | |
89 | } else if (ret == 0) { | |
90 | /* | |
050349bb DG |
91 | * We created the directory. Set its ownership to the |
92 | * user/group specified. | |
996b65c8 MD |
93 | */ |
94 | ret = chown(tmp, uid, gid); | |
95 | if (ret < 0) { | |
96 | perror("chown in mkdir recursive"); | |
97 | ret = -errno; | |
49a1d1ed MD |
98 | goto umask_error; |
99 | } | |
100 | } | |
101 | *p = '/'; | |
102 | } | |
103 | } | |
8e68d1c8 | 104 | |
49a1d1ed | 105 | ret = mkdir(tmp, mode); |
8e68d1c8 | 106 | if (ret < 0) { |
996b65c8 MD |
107 | ret = -errno; |
108 | } else if (ret == 0) { | |
109 | /* | |
050349bb DG |
110 | * We created the directory. Set its ownership to the user/group |
111 | * specified. | |
996b65c8 MD |
112 | */ |
113 | ret = chown(tmp, uid, gid); | |
114 | if (ret < 0) { | |
115 | perror("chown in mkdir recursive"); | |
116 | ret = -errno; | |
117 | goto umask_error; | |
118 | } | |
8e68d1c8 DG |
119 | } |
120 | ||
121 | umask_error: | |
122 | umask(old_umask); | |
123 | error: | |
49a1d1ed | 124 | return ret; |
8e68d1c8 | 125 | } |