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8a99096f SM |
1 | /* On some systems, mkdir ("foo/", 0700) fails because of the trailing |
2 | slash. On those systems, this wrapper removes the trailing slash. | |
3 | ||
5df4cba6 | 4 | Copyright (C) 2001, 2003, 2006, 2008-2020 Free Software Foundation, Inc. |
8a99096f SM |
5 | |
6 | This program is free software: you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
c0c3707f | 17 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
8a99096f SM |
18 | |
19 | /* written by Jim Meyering */ | |
20 | ||
21 | #include <config.h> | |
22 | ||
23 | /* Specification. */ | |
24 | #include <sys/stat.h> | |
25 | ||
26 | #include <errno.h> | |
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
29 | #include <string.h> | |
30 | ||
31 | #include "dirname.h" | |
32 | ||
33 | /* Disable the definition of mkdir to rpl_mkdir (from the <sys/stat.h> | |
34 | substitute) in this file. Otherwise, we'd get an endless recursion. */ | |
35 | #undef mkdir | |
36 | ||
37 | /* mingw's _mkdir() function has 1 argument, but we pass 2 arguments. | |
38 | Additionally, it declares _mkdir (and depending on compile flags, an | |
39 | alias mkdir), only in the nonstandard includes <direct.h> and <io.h>, | |
40 | which are included in the <sys/stat.h> override. */ | |
c0c3707f | 41 | #if defined _WIN32 && ! defined __CYGWIN__ |
8a99096f SM |
42 | # define mkdir(name,mode) _mkdir (name) |
43 | # define maybe_unused _GL_UNUSED | |
44 | #else | |
45 | # define maybe_unused /* empty */ | |
46 | #endif | |
47 | ||
48 | /* This function is required at least for NetBSD 1.5.2. */ | |
49 | ||
50 | int | |
51 | rpl_mkdir (char const *dir, mode_t mode maybe_unused) | |
52 | { | |
53 | int ret_val; | |
54 | char *tmp_dir; | |
55 | size_t len = strlen (dir); | |
56 | ||
57 | if (len && dir[len - 1] == '/') | |
58 | { | |
59 | tmp_dir = strdup (dir); | |
60 | if (!tmp_dir) | |
61 | { | |
62 | /* Rather than rely on strdup-posix, we set errno ourselves. */ | |
63 | errno = ENOMEM; | |
64 | return -1; | |
65 | } | |
66 | strip_trailing_slashes (tmp_dir); | |
67 | } | |
68 | else | |
69 | { | |
70 | tmp_dir = (char *) dir; | |
71 | } | |
72 | #if FUNC_MKDIR_DOT_BUG | |
73 | /* Additionally, cygwin 1.5 mistakenly creates a directory "d/./". */ | |
74 | { | |
75 | char *last = last_component (tmp_dir); | |
76 | if (*last == '.' && (last[1] == '\0' | |
77 | || (last[1] == '.' && last[2] == '\0'))) | |
78 | { | |
79 | struct stat st; | |
80 | if (stat (tmp_dir, &st) == 0) | |
81 | errno = EEXIST; | |
82 | return -1; | |
83 | } | |
84 | } | |
85 | #endif /* FUNC_MKDIR_DOT_BUG */ | |
86 | ||
87 | ret_val = mkdir (tmp_dir, mode); | |
88 | ||
89 | if (tmp_dir != dir) | |
90 | free (tmp_dir); | |
91 | ||
92 | return ret_val; | |
93 | } |