| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Test for realpath/canonicalize function. |
| 2 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library 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 GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #include <errno.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | |
| 24 | /* Prototype for our test function. */ |
| 25 | extern void do_prepare (int argc, char *argv[]); |
| 26 | extern int do_test (int argc, char *argv[]); |
| 27 | |
| 28 | /* We have a preparation function. */ |
| 29 | #define PREPARE do_prepare |
| 30 | |
| 31 | #include <test-skeleton.c> |
| 32 | |
| 33 | /* Name of the temporary files we create. */ |
| 34 | char *name1; |
| 35 | char *name2; |
| 36 | |
| 37 | /* Preparation. */ |
| 38 | void |
| 39 | do_prepare (int argc, char *argv[]) |
| 40 | { |
| 41 | size_t test_dir_len; |
| 42 | |
| 43 | test_dir_len = strlen (test_dir); |
| 44 | |
| 45 | /* Generate the circular symlinks. */ |
| 46 | name1 = malloc (test_dir_len + sizeof ("/canonXXXXXX")); |
| 47 | mempcpy (mempcpy (name1, test_dir, test_dir_len), |
| 48 | "/canonXXXXXX", sizeof ("/canonXXXXXX")); |
| 49 | name2 = strdup (name1); |
| 50 | |
| 51 | add_temp_file (mktemp (name1)); |
| 52 | add_temp_file (mktemp (name2)); |
| 53 | } |
| 54 | |
| 55 | |
| 56 | /* Run the test. */ |
| 57 | int |
| 58 | do_test (int argc, char *argv[]) |
| 59 | { |
| 60 | char *canon; |
| 61 | |
| 62 | printf ("create symlinks from %s to %s and vice versa\n", name1, name2); |
| 63 | if (symlink (name1, name2) == -1 |
| 64 | || symlink (name2, name1) == -1) |
| 65 | /* We cannot test this. */ |
| 66 | return 0; |
| 67 | |
| 68 | /* Call the function. This is equivalent the using `realpath' but the |
| 69 | function allocates the room for the result. */ |
| 70 | errno = 0; |
| 71 | canon = canonicalize_file_name (name1); |
| 72 | |
| 73 | return canon != NULL || errno != ELOOP; |
| 74 | } |