1 /* Tests of symlinkat.
2 Copyright (C) 2009-2014 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program 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 General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
16
17 /* Written by Eric Blake <ebb9@byu.net>, 2009. */
18
19 #include <config.h>
20
21 #include <unistd.h>
22
23 #include "signature.h"
24 SIGNATURE_CHECK (symlinkat, int, (char const *, int, char const *));
25
26 #include <fcntl.h>
27 #include <errno.h>
28 #include <stdbool.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include <sys/stat.h>
33
34 #include "ignore-value.h"
35 #include "macros.h"
36
37 #ifndef HAVE_SYMLINK
38 # define HAVE_SYMLINK 0
39 #endif
40
41 #define BASE "test-symlinkat.t"
42
43 #include "test-symlink.h"
44
45 static int dfd = AT_FDCWD;
46
47 static int
do_symlink(char const * contents,char const * name)48 do_symlink (char const *contents, char const *name)
49 {
50 return symlinkat (contents, dfd, name);
51 }
52
53 int
main(void)54 main (void)
55 {
56 int result;
57
58 /* Remove any leftovers from a previous partial run. */
59 ignore_value (system ("rm -rf " BASE "*"));
60
61 /* Test behaviour for invalid file descriptors. */
62 {
63 errno = 0;
64 ASSERT (symlinkat ("foo", -1, "bar") == -1);
65 ASSERT (errno == EBADF
66 || errno == ENOSYS /* seen on mingw */
67 );
68 }
69 {
70 close (99);
71 errno = 0;
72 ASSERT (symlinkat ("foo", 99, "bar") == -1);
73 ASSERT (errno == EBADF
74 || errno == ENOSYS /* seen on mingw */
75 );
76 }
77
78 /* Perform same checks as counterpart functions. */
79 result = test_symlink (do_symlink, false);
80 dfd = openat (AT_FDCWD, ".", O_RDONLY);
81 ASSERT (0 <= dfd);
82 ASSERT (test_symlink (do_symlink, false) == result);
83
84 ASSERT (close (dfd) == 0);
85 if (result == 77)
86 fputs ("skipping test: symlinks not supported on this file system\n",
87 stderr);
88 return result;
89 }
90