1 /* Test of execution of file name canonicalization.
2 Copyright (C) 2007-2013 Free Software Foundation, Inc.
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.
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.
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/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
21 #include "canonicalize.h"
31 #include "same-inode.h"
32 #include "ignore-value.h"
35 #define BASE "t-can.tmp"
46 /* Setup some hierarchy to be used by this test. Start by removing
47 any leftovers from a previous partial run. */
50 ignore_value (system ("rm -rf " BASE " ise"));
51 ASSERT (mkdir (BASE, 0700) == 0);
52 fd = creat (BASE "/tra", 0600);
54 ASSERT (close (fd) == 0);
57 /* Check for ., .., intermediate // handling, and for error cases. */
59 char *result1 = canonicalize_file_name (BASE "//./..//" BASE "/tra");
60 char *result2 = canonicalize_filename_mode (BASE "//./..//" BASE "/tra",
62 ASSERT (result1 != NULL);
63 ASSERT (result2 != NULL);
64 ASSERT (strcmp (result1, result2) == 0);
65 ASSERT (strstr (result1, "/" BASE "/tra")
66 == result1 + strlen (result1) - strlen ("/" BASE "/tra"));
70 result1 = canonicalize_file_name ("");
71 ASSERT (result1 == NULL);
72 ASSERT (errno == ENOENT);
74 result2 = canonicalize_filename_mode ("", CAN_EXISTING);
75 ASSERT (result2 == NULL);
76 ASSERT (errno == ENOENT);
78 result1 = canonicalize_file_name (null_ptr ());
79 ASSERT (result1 == NULL);
80 ASSERT (errno == EINVAL);
82 result2 = canonicalize_filename_mode (NULL, CAN_EXISTING);
83 ASSERT (result2 == NULL);
84 ASSERT (errno == EINVAL);
85 result2 = canonicalize_filename_mode (".", CAN_MISSING | CAN_ALL_BUT_LAST);
86 ASSERT (result2 == NULL);
87 ASSERT (errno == EINVAL);
90 /* Check that a non-directory with trailing slash yields NULL. */
95 result1 = canonicalize_file_name (BASE "/tra/");
96 ASSERT (result1 == NULL);
97 ASSERT (errno == ENOTDIR);
99 result2 = canonicalize_filename_mode (BASE "/tra/", CAN_EXISTING);
100 ASSERT (result2 == NULL);
101 ASSERT (errno == ENOTDIR);
104 /* Check that a missing directory yields NULL. */
109 result1 = canonicalize_file_name (BASE "/zzz/..");
110 ASSERT (result1 == NULL);
111 ASSERT (errno == ENOENT);
113 result2 = canonicalize_filename_mode (BASE "/zzz/..", CAN_EXISTING);
114 ASSERT (result2 == NULL);
115 ASSERT (errno == ENOENT);
118 /* From here on out, tests involve symlinks. */
119 if (symlink (BASE "/ket", "ise") != 0)
121 ASSERT (remove (BASE "/tra") == 0);
122 ASSERT (rmdir (BASE) == 0);
123 fputs ("skipping test: symlinks not supported on this file system\n",
127 ASSERT (symlink ("bef", BASE "/plo") == 0);
128 ASSERT (symlink ("tra", BASE "/huk") == 0);
129 ASSERT (symlink ("lum", BASE "/bef") == 0);
130 ASSERT (symlink ("wum", BASE "/ouk") == 0);
131 ASSERT (symlink ("../ise", BASE "/ket") == 0);
132 ASSERT (mkdir (BASE "/lum", 0700) == 0);
133 ASSERT (symlink ("s", BASE "/p") == 0);
134 ASSERT (symlink ("d", BASE "/s") == 0);
135 ASSERT (mkdir (BASE "/d", 0700) == 0);
136 ASSERT (close (creat (BASE "/d/2", 0600)) == 0);
137 ASSERT (symlink ("../s/2", BASE "/d/1") == 0);
138 ASSERT (symlink ("//.//../..", BASE "/droot") == 0);
140 /* Check that symbolic links are not resolved, with CAN_NOLINKS. */
142 char *result1 = canonicalize_filename_mode (BASE "/huk", CAN_NOLINKS);
143 ASSERT (result1 != NULL);
144 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/huk"),
145 "/" BASE "/huk") == 0);
149 /* Check that the symbolic link to a file can be resolved. */
151 char *result1 = canonicalize_file_name (BASE "/huk");
152 char *result2 = canonicalize_file_name (BASE "/tra");
153 char *result3 = canonicalize_filename_mode (BASE "/huk", CAN_EXISTING);
154 ASSERT (result1 != NULL);
155 ASSERT (result2 != NULL);
156 ASSERT (result3 != NULL);
157 ASSERT (strcmp (result1, result2) == 0);
158 ASSERT (strcmp (result2, result3) == 0);
159 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
160 "/" BASE "/tra") == 0);
166 /* Check that the symbolic link to a directory can be resolved. */
168 char *result1 = canonicalize_file_name (BASE "/plo");
169 char *result2 = canonicalize_file_name (BASE "/bef");
170 char *result3 = canonicalize_file_name (BASE "/lum");
171 char *result4 = canonicalize_filename_mode (BASE "/plo", CAN_EXISTING);
172 ASSERT (result1 != NULL);
173 ASSERT (result2 != NULL);
174 ASSERT (result3 != NULL);
175 ASSERT (result4 != NULL);
176 ASSERT (strcmp (result1, result2) == 0);
177 ASSERT (strcmp (result2, result3) == 0);
178 ASSERT (strcmp (result3, result4) == 0);
179 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
180 "/" BASE "/lum") == 0);
187 /* Check that a symbolic link to a nonexistent file yields NULL. */
192 result1 = canonicalize_file_name (BASE "/ouk");
193 ASSERT (result1 == NULL);
194 ASSERT (errno == ENOENT);
196 result2 = canonicalize_filename_mode (BASE "/ouk", CAN_EXISTING);
197 ASSERT (result2 == NULL);
198 ASSERT (errno == ENOENT);
201 /* Check that a non-directory symlink with trailing slash yields NULL. */
206 result1 = canonicalize_file_name (BASE "/huk/");
207 ASSERT (result1 == NULL);
208 ASSERT (errno == ENOTDIR);
210 result2 = canonicalize_filename_mode (BASE "/huk/", CAN_EXISTING);
211 ASSERT (result2 == NULL);
212 ASSERT (errno == ENOTDIR);
215 /* Check that a missing directory via symlink yields NULL. */
220 result1 = canonicalize_file_name (BASE "/ouk/..");
221 ASSERT (result1 == NULL);
222 ASSERT (errno == ENOENT);
224 result2 = canonicalize_filename_mode (BASE "/ouk/..", CAN_EXISTING);
225 ASSERT (result2 == NULL);
226 ASSERT (errno == ENOENT);
229 /* Check that a loop of symbolic links is detected. */
234 result1 = canonicalize_file_name ("ise");
235 ASSERT (result1 == NULL);
236 ASSERT (errno == ELOOP);
238 result2 = canonicalize_filename_mode ("ise", CAN_EXISTING);
239 ASSERT (result2 == NULL);
240 ASSERT (errno == ELOOP);
243 /* Check that alternate modes can resolve missing basenames. */
245 char *result1 = canonicalize_filename_mode (BASE "/zzz", CAN_ALL_BUT_LAST);
246 char *result2 = canonicalize_filename_mode (BASE "/zzz", CAN_MISSING);
247 char *result3 = canonicalize_filename_mode (BASE "/zzz/", CAN_ALL_BUT_LAST);
248 char *result4 = canonicalize_filename_mode (BASE "/zzz/", CAN_MISSING);
249 ASSERT (result1 != NULL);
250 ASSERT (result2 != NULL);
251 ASSERT (result3 != NULL);
252 ASSERT (result4 != NULL);
253 ASSERT (strcmp (result1, result2) == 0);
254 ASSERT (strcmp (result2, result3) == 0);
255 ASSERT (strcmp (result3, result4) == 0);
256 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/zzz"),
257 "/" BASE "/zzz") == 0);
264 /* Check that alternate modes can resolve broken symlink basenames. */
266 char *result1 = canonicalize_filename_mode (BASE "/ouk", CAN_ALL_BUT_LAST);
267 char *result2 = canonicalize_filename_mode (BASE "/ouk", CAN_MISSING);
268 char *result3 = canonicalize_filename_mode (BASE "/ouk/", CAN_ALL_BUT_LAST);
269 char *result4 = canonicalize_filename_mode (BASE "/ouk/", CAN_MISSING);
270 ASSERT (result1 != NULL);
271 ASSERT (result2 != NULL);
272 ASSERT (result3 != NULL);
273 ASSERT (result4 != NULL);
274 ASSERT (strcmp (result1, result2) == 0);
275 ASSERT (strcmp (result2, result3) == 0);
276 ASSERT (strcmp (result3, result4) == 0);
277 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/wum"),
278 "/" BASE "/wum") == 0);
285 /* Check that alternate modes can handle missing dirnames. */
287 char *result1 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_ALL_BUT_LAST);
288 char *result2 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_MISSING);
289 ASSERT (result1 == NULL);
290 ASSERT (result2 != NULL);
291 ASSERT (strcmp (result2 + strlen (result2) - 14, "/t-can.zzz/zzz") == 0);
295 /* Ensure that the following is resolved properly.
296 Before 2007-09-27, it would mistakenly report a loop. */
298 char *result1 = canonicalize_filename_mode (BASE, CAN_EXISTING);
299 char *result2 = canonicalize_filename_mode (BASE "/p/1", CAN_EXISTING);
300 ASSERT (result1 != NULL);
301 ASSERT (result2 != NULL);
302 ASSERT (strcmp (result2 + strlen (result1), "/d/2") == 0);
307 /* Check that leading // is honored correctly. */
311 char *result1 = canonicalize_file_name ("//.");
312 char *result2 = canonicalize_filename_mode ("//.", CAN_EXISTING);
313 char *result3 = canonicalize_file_name (BASE "/droot");
314 char *result4 = canonicalize_filename_mode (BASE "/droot", CAN_EXISTING);
319 ASSERT (stat ("/", &st1) == 0);
320 ASSERT (stat ("//", &st2) == 0);
321 if (SAME_INODE (st1, st2))
323 ASSERT (strcmp (result1, "/") == 0);
324 ASSERT (strcmp (result2, "/") == 0);
325 ASSERT (strcmp (result3, "/") == 0);
326 ASSERT (strcmp (result4, "/") == 0);
330 ASSERT (strcmp (result1, "//") == 0);
331 ASSERT (strcmp (result2, "//") == 0);
332 ASSERT (strcmp (result3, "//") == 0);
333 ASSERT (strcmp (result4, "//") == 0);
342 ASSERT (remove (BASE "/droot") == 0);
343 ASSERT (remove (BASE "/d/1") == 0);
344 ASSERT (remove (BASE "/d/2") == 0);
345 ASSERT (remove (BASE "/d") == 0);
346 ASSERT (remove (BASE "/s") == 0);
347 ASSERT (remove (BASE "/p") == 0);
348 ASSERT (remove (BASE "/plo") == 0);
349 ASSERT (remove (BASE "/huk") == 0);
350 ASSERT (remove (BASE "/bef") == 0);
351 ASSERT (remove (BASE "/ouk") == 0);
352 ASSERT (remove (BASE "/ket") == 0);
353 ASSERT (remove (BASE "/lum") == 0);
354 ASSERT (remove (BASE "/tra") == 0);
355 ASSERT (remove (BASE) == 0);
356 ASSERT (remove ("ise") == 0);