2 Bacula® - The Network Backup Solution
4 Copyright (C) 2007-2007 Free Software Foundation Europe e.V.
6 The main author of Bacula is Kern Sibbald, with contributions from
7 many others, a complete list can be found in the file AUTHORS.
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version two of the GNU General Public
10 License as published by the Free Software Foundation and included
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 Bacula® is a registered trademark of John Walker.
24 The licensor of Bacula is the Free Software Foundation Europe
25 (FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
26 Switzerland, email:ftf@fsfeurope.org.
30 * Kern Sibbald, September MMVII
32 * This is tricky code, especially when writing from scratch. Fortunately,
33 * a non-copyrighted version of mkdir was available to consult.
40 static bool makedir(JCR *jcr, char *path, mode_t mode, int *created)
44 if (mkdir(path, mode) != 0) {
47 if (stat(path, &statp) != 0) {
48 Jmsg(jcr, M_ERROR, 0, _("Cannot create directory %s: ERR=%s\n"),
49 path, be.bstrerror());
51 } else if (!S_ISDIR(statp.st_mode)) {
52 Jmsg(jcr, M_ERROR, 0, _("%s exists but is not a directory.\n"), path);
55 return true; /* directory exists */
61 static void set_own_mod(JCR *jcr, char *path, uid_t owner, gid_t group, mode_t mode)
63 if (chown(path, owner, group) != 0
69 Jmsg(jcr, M_WARNING, 0, _("Cannot change owner and/or group of %s: ERR=%s\n"),
70 path, be.bstrerror());
72 if (chmod(path, mode) != 0) {
74 Jmsg(jcr, M_WARNING, 0, _("Cannot change permissions of %s: ERR=%s\n"),
75 path, be.bstrerror());
80 * mode is the mode bits to use in creating a new directory
82 * parent_mode are the parent's modes if we need to create parent
85 * owner and group are to set on any created dirs
87 * keep_dir_modes if set means don't change mode bits if dir exists
89 bool makepath(JCR *jcr, const char *apath, mode_t mode, mode_t parent_mode,
90 uid_t owner, gid_t group, int keep_dir_modes)
94 char *path = (char *)apath;
102 int max_dirs = (int)sizeof(new_dir);
104 if (stat(path, &statp) == 0) { /* Does dir exist? */
105 if (!S_ISDIR(statp.st_mode)) {
106 Jmsg(jcr, M_ERROR, 0, _("%s exists but is not a directory.\n"), path);
109 /* Full path exists */
110 if (keep_dir_modes) {
113 set_own_mod(jcr, path, owner, group, mode);
119 path = (char *)alloca(len+1);
120 bstrncpy(path, apath, len+1);
121 strip_trailing_slashes(path);
123 * Now for one of the complexities. If we are not running as root,
124 * then if the parent_mode does not have wx user perms, or we are
125 * setting the userid or group, and the parent_mode has setuid, setgid,
126 * or sticky bits, we must create the dir with open permissions, then
127 * go back and patch all the dirs up with the correct perms.
128 * Solution, set everything to 0777, then go back and reset them at the
133 #if defined(HAVE_WIN32)
134 /* Validate drive letter */
135 if (path[1] == ':') {
136 char drive[4] = "X:\\";
140 UINT drive_type = GetDriveType(drive);
142 if (drive_type == DRIVE_UNKNOWN || drive_type == DRIVE_NO_ROOT_DIR) {
143 Jmsg(jcr, M_ERROR, 0, _("%c: is not a valid drive.\n"), path[0]);
147 if (path[2] == '\0') { /* attempt to create a drive */
149 goto bail_out; /* OK, it is already there */
160 /* Skip leading slash(es) */
161 while (IsPathSeparator(*p)) {
164 while ((p = first_path_separator(p))) {
168 if (!makedir(jcr, path, tmode, &created)) {
171 if (ndir < max_dirs) {
172 new_dir[ndir++] = created;
175 while (IsPathSeparator(*p)) {
179 /* Create final component */
180 if (!makedir(jcr, path, tmode, &created)) {
183 if (ndir < max_dirs) {
184 new_dir[ndir++] = created;
186 if (ndir >= max_dirs) {
187 Jmsg(jcr, M_WARNING, 0, _("Too many subdirectories. Some permissions not reset.\n"));
190 /* Now set the proper owner and modes */
191 #if defined(HAVE_WIN32)
192 if (path[1] == ':') {
200 /* Skip leading slash(es) */
201 while (IsPathSeparator(*p)) {
204 while ((p = first_path_separator(p))) {
208 if (i < ndir && new_dir[i++] && !keep_dir_modes) {
209 set_own_mod(jcr, path, owner, group, parent_mode);
212 while (IsPathSeparator(*p)) {
217 /* Set for final component */
218 if (i < ndir && new_dir[i++]) {
219 set_own_mod(jcr, path, owner, group, mode);