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561b0bec | 1 | /* Error-checking replacement for "mkdir -p". |
d614a753 | 2 | Copyright (C) 2018-2020 Free Software Foundation, Inc. |
561b0bec DD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library 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 GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
561b0bec DD |
18 | |
19 | #include <support/support.h> | |
20 | #include <support/check.h> | |
21 | #include <support/xunistd.h> | |
22 | ||
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | #include <errno.h> | |
26 | ||
27 | /* Equivalent of "mkdir -p". Any failures cause FAIL_EXIT1 so no | |
28 | return code is needed. */ | |
29 | ||
30 | void | |
31 | xmkdirp (const char *path, mode_t mode) | |
32 | { | |
33 | struct stat s; | |
34 | const char *slash_p; | |
35 | int rv; | |
36 | ||
37 | if (path[0] == 0) | |
38 | return; | |
39 | ||
40 | if (stat (path, &s) == 0) | |
41 | { | |
42 | if (S_ISDIR (s.st_mode)) | |
43 | return; | |
44 | errno = EEXIST; | |
45 | FAIL_EXIT1 ("mkdir_p (\"%s\", 0%o): %m", path, mode); | |
46 | } | |
47 | ||
48 | slash_p = strrchr (path, '/'); | |
49 | if (slash_p != NULL) | |
50 | { | |
51 | while (slash_p > path && slash_p[-1] == '/') | |
52 | --slash_p; | |
53 | if (slash_p > path) | |
54 | { | |
55 | char *parent = xstrndup (path, slash_p - path); | |
56 | xmkdirp (parent, mode); | |
57 | free (parent); | |
58 | } | |
59 | } | |
60 | ||
61 | rv = mkdir (path, mode); | |
62 | if (rv != 0) | |
63 | FAIL_EXIT1 ("mkdir_p (\"%s\", 0%o): %m", path, mode); | |
64 | ||
65 | return; | |
66 | } |