1 /* Stub for symlink().
2 Copyright (C) 2009-2023 Free Software Foundation, Inc.
3
4 This file is free software: you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as
6 published by the Free Software Foundation, either version 3 of the
7 License, or (at your option) any later version.
8
9 This file is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 #include <config.h>
18
19 /* Specification. */
20 #include <unistd.h>
21
22 #include <errno.h>
23 #include <string.h>
24 #include <sys/stat.h>
25
26
27 #if HAVE_SYMLINK
28
29 # undef symlink
30
31 /* Create a symlink, but reject trailing slash. */
32 int
33 rpl_symlink (char const *contents, char const *name)
34 {
35 size_t len = strlen (name);
36 if (len && name[len - 1] == '/')
37 {
38 struct stat st;
39 if (lstat (name, &st) == 0 || errno == EOVERFLOW)
40 errno = EEXIST;
41 return -1;
42 }
43 return symlink (contents, name);
44 }
45
46 #else /* !HAVE_SYMLINK */
47
48 /* The system does not support symlinks. */
49 int
50 symlink (_GL_UNUSED char const *contents,
51 _GL_UNUSED char const *name)
52 {
53 errno = ENOSYS;
54 return -1;
55 }
56
57 #endif /* !HAVE_SYMLINK */