1 /* vi: set sw=4 ts=4: */
3 * parse_mode implementation for busybox
5 * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 /* Mar 5, 2003 Manuel Novoa III
12 * This is the main work function for the 'mkdir' applet. As such, it
13 * strives to be SUSv3 compliant in it's behaviour when recursively
14 * making missing parent dirs, and in it's mode setting of the final
17 * To recursively build all missing intermediate directories, make
18 * sure that (flags & FILEUTILS_RECUR) is non-zero. Newly created
19 * intermediate directories will have at least u+wx perms.
21 * To set specific permissions on 'path', pass the appropriate 'mode'
22 * val. Otherwise, pass -1 to get default permissions.
27 /* This function is used from NOFORK applets. It must not allocate anything */
29 int FAST_FUNC bb_make_directory(char *path, long mode, int flags)
38 /* "path" can be a result of dirname().
39 * dirname("no_slashes") returns ".", possibly read-only.
40 * musl dirname() can return read-only "/" too.
41 * We need writable string. And for "/", "." (and ".."?)
42 * nothing needs to be created anyway.
44 if (LONE_CHAR(path, '/'))
49 // if (path[1] == '.' && path[2] == '\0')
50 // return 0; /* ".." */
53 org_mask = cur_mask = (mode_t)-1L;
58 if (flags & FILEUTILS_RECUR) { /* Get the parent */
59 /* Bypass leading non-'/'s and then subsequent '/'s */
65 c = *s; /* Save the current char */
66 *s = '\0'; /* and replace it with nul */
74 /* Intermediate dirs: must have wx for user */
75 if (cur_mask == (mode_t)-1L) { /* wasn't done yet? */
79 /* Clear u=wx in umask - this ensures
80 * they won't be cleared on mkdir */
81 new_mask = (org_mask & ~(mode_t)0300);
82 //bb_error_msg("org_mask:%o cur_mask:%o", org_mask, new_mask);
83 if (new_mask != cur_mask) {
89 /* Last component: uses original umask */
90 //bb_error_msg("1 org_mask:%o", org_mask);
91 if (org_mask != cur_mask) {
97 if (mkdir(path, 0777) < 0) {
98 /* If we failed for any other reason than the directory
99 * already exists, output a diagnostic and return -1 */
100 if ((errno != EEXIST && errno != EISDIR)
101 || !(flags & FILEUTILS_RECUR)
102 || ((stat(path, &st) < 0) || !S_ISDIR(st.st_mode))
107 /* Since the directory exists, don't attempt to change
108 * permissions if it was the full target. Note that
109 * this is not an error condition. */
114 if (flags & FILEUTILS_VERBOSE) {
115 printf("created directory: '%s'\n", path);
120 /* Done. If necessary, update perms on the newly
121 * created directory. Failure to update here _is_
123 if ((mode != -1) && (chmod(path, mode) < 0)) {
124 fail_msg = "set permissions of";
125 if (flags & FILEUTILS_IGNORE_CHMOD_ERR) {
134 /* Remove any inserted nul from the path (recursive mode) */
140 bb_perror_msg("can't %s directory '%s'", fail_msg, path);
145 //bb_error_msg("2 org_mask:%o", org_mask);
146 if (org_mask != cur_mask)