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310b3460 | 1 | /* Test for realpath/canonicalize function. |
2b778ceb | 2 | Copyright (C) 1998-2021 Free Software Foundation, Inc. |
41bdb6e2 | 3 | This file is part of the GNU C Library. |
310b3460 UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
310b3460 UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
310b3460 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
310b3460 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <string.h> | |
21 | ||
22 | ||
23 | /* Prototype for our test function. */ | |
24 | extern void do_prepare (int argc, char *argv[]); | |
25 | extern int do_test (int argc, char *argv[]); | |
26 | ||
27 | /* We have a preparation function. */ | |
28 | #define PREPARE do_prepare | |
29 | ||
30 | #include <test-skeleton.c> | |
31 | ||
32 | /* Name of the temporary files we create. */ | |
33 | char *name1; | |
34 | char *name2; | |
35 | ||
36 | /* Preparation. */ | |
37 | void | |
38 | do_prepare (int argc, char *argv[]) | |
39 | { | |
30aa5785 | 40 | size_t test_dir_len; |
310b3460 UD |
41 | |
42 | test_dir_len = strlen (test_dir); | |
43 | ||
44 | /* Generate the circular symlinks. */ | |
45 | name1 = malloc (test_dir_len + sizeof ("/canonXXXXXX")); | |
46 | mempcpy (mempcpy (name1, test_dir, test_dir_len), | |
47 | "/canonXXXXXX", sizeof ("/canonXXXXXX")); | |
48 | name2 = strdup (name1); | |
49 | ||
50 | add_temp_file (mktemp (name1)); | |
51 | add_temp_file (mktemp (name2)); | |
52 | } | |
53 | ||
54 | ||
55 | /* Run the test. */ | |
56 | int | |
57 | do_test (int argc, char *argv[]) | |
58 | { | |
59 | char *canon; | |
60 | ||
61 | printf ("create symlinks from %s to %s and vice versa\n", name1, name2); | |
62 | if (symlink (name1, name2) == -1 | |
63 | || symlink (name2, name1) == -1) | |
64 | /* We cannot test this. */ | |
65 | return 0; | |
66 | ||
67 | /* Call the function. This is equivalent the using `realpath' but the | |
68 | function allocates the room for the result. */ | |
69 | errno = 0; | |
70 | canon = canonicalize_file_name (name1); | |
71 | ||
72 | return canon != NULL || errno != ELOOP; | |
73 | } |