1 /* Test of execution of file name canonicalization.
2 Copyright (C) 2007-2009 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"
33 #define ASSERT(expr) \
38 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
45 #define BASE "t-can.tmp"
50 /* Setup some hierarchy to be used by this test. Start by removing
51 any leftovers from a previous partial run. */
54 ASSERT (system ("rm -rf " BASE " ise") == 0);
55 ASSERT (mkdir (BASE, 0700) == 0);
56 fd = creat (BASE "/tra", 0600);
58 ASSERT (close (fd) == 0);
61 /* Check for ., .., intermediate // handling, and for error cases. */
63 char *result1 = canonicalize_file_name (BASE "//./..//" BASE "/tra");
64 char *result2 = canonicalize_filename_mode (BASE "//./..//" BASE "/tra",
66 ASSERT (result1 != NULL);
67 ASSERT (result2 != NULL);
68 ASSERT (strcmp (result1, result2) == 0);
69 ASSERT (strstr (result1, "/" BASE "/tra")
70 == result1 + strlen (result1) - strlen ("/" BASE "/tra"));
74 result1 = canonicalize_file_name ("");
75 ASSERT (result1 == NULL);
76 ASSERT (errno == ENOENT);
78 result2 = canonicalize_filename_mode ("", CAN_EXISTING);
79 ASSERT (result2 == NULL);
80 ASSERT (errno == ENOENT);
82 result1 = canonicalize_file_name (NULL);
83 ASSERT (result1 == NULL);
84 ASSERT (errno == EINVAL);
86 result2 = canonicalize_filename_mode (NULL, CAN_EXISTING);
87 ASSERT (result2 == NULL);
88 ASSERT (errno == EINVAL);
91 /* Check that a non-directory with trailing slash yields NULL. */
96 result1 = canonicalize_file_name (BASE "/tra/");
97 ASSERT (result1 == NULL);
98 ASSERT (errno == ENOTDIR);
100 result2 = canonicalize_filename_mode (BASE "/tra/", CAN_EXISTING);
101 ASSERT (result2 == NULL);
102 ASSERT (errno == ENOTDIR);
105 /* Check that a missing directory yields NULL. */
110 result1 = canonicalize_file_name (BASE "/zzz/..");
111 ASSERT (result1 == NULL);
112 ASSERT (errno == ENOENT);
114 result2 = canonicalize_filename_mode (BASE "/zzz/..", CAN_EXISTING);
115 ASSERT (result2 == NULL);
116 ASSERT (errno == ENOENT);
119 /* From here on out, tests involve symlinks. */
120 if (symlink (BASE "/ket", "ise") != 0)
122 ASSERT (remove (BASE "/tra") == 0);
123 ASSERT (rmdir (BASE) == 0);
124 fputs ("skipping test: symlinks not supported on this file system\n",
128 ASSERT (symlink ("bef", BASE "/plo") == 0);
129 ASSERT (symlink ("tra", BASE "/huk") == 0);
130 ASSERT (symlink ("lum", BASE "/bef") == 0);
131 ASSERT (symlink ("wum", BASE "/ouk") == 0);
132 ASSERT (symlink ("../ise", BASE "/ket") == 0);
133 ASSERT (mkdir (BASE "/lum", 0700) == 0);
134 ASSERT (symlink ("s", BASE "/p") == 0);
135 ASSERT (symlink ("d", BASE "/s") == 0);
136 ASSERT (mkdir (BASE "/d", 0700) == 0);
137 ASSERT (close (creat (BASE "/d/2", 0600)) == 0);
138 ASSERT (symlink ("../s/2", BASE "/d/1") == 0);
139 ASSERT (symlink ("//.//../..", BASE "/droot") == 0);
141 /* Check that the symbolic link to a file can be resolved. */
143 char *result1 = canonicalize_file_name (BASE "/huk");
144 char *result2 = canonicalize_file_name (BASE "/tra");
145 char *result3 = canonicalize_filename_mode (BASE "/huk", CAN_EXISTING);
146 ASSERT (result1 != NULL);
147 ASSERT (result2 != NULL);
148 ASSERT (result3 != NULL);
149 ASSERT (strcmp (result1, result2) == 0);
150 ASSERT (strcmp (result2, result3) == 0);
151 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
152 "/" BASE "/tra") == 0);
158 /* Check that the symbolic link to a directory can be resolved. */
160 char *result1 = canonicalize_file_name (BASE "/plo");
161 char *result2 = canonicalize_file_name (BASE "/bef");
162 char *result3 = canonicalize_file_name (BASE "/lum");
163 char *result4 = canonicalize_filename_mode (BASE "/plo", CAN_EXISTING);
164 ASSERT (result1 != NULL);
165 ASSERT (result2 != NULL);
166 ASSERT (result3 != NULL);
167 ASSERT (result4 != NULL);
168 ASSERT (strcmp (result1, result2) == 0);
169 ASSERT (strcmp (result2, result3) == 0);
170 ASSERT (strcmp (result3, result4) == 0);
171 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
172 "/" BASE "/lum") == 0);
179 /* Check that a symbolic link to a nonexistent file yields NULL. */
184 result1 = canonicalize_file_name (BASE "/ouk");
185 ASSERT (result1 == NULL);
186 ASSERT (errno == ENOENT);
188 result2 = canonicalize_filename_mode (BASE "/ouk", CAN_EXISTING);
189 ASSERT (result2 == NULL);
190 ASSERT (errno == ENOENT);
193 /* Check that a non-directory symlink with trailing slash yields NULL. */
198 result1 = canonicalize_file_name (BASE "/huk/");
199 ASSERT (result1 == NULL);
200 ASSERT (errno == ENOTDIR);
202 result2 = canonicalize_filename_mode (BASE "/huk/", CAN_EXISTING);
203 ASSERT (result2 == NULL);
204 ASSERT (errno == ENOTDIR);
207 /* Check that a missing directory via symlink yields NULL. */
212 result1 = canonicalize_file_name (BASE "/ouk/..");
213 ASSERT (result1 == NULL);
214 ASSERT (errno == ENOENT);
216 result2 = canonicalize_filename_mode (BASE "/ouk/..", CAN_EXISTING);
217 ASSERT (result2 == NULL);
218 ASSERT (errno == ENOENT);
221 /* Check that a loop of symbolic links is detected. */
226 result1 = canonicalize_file_name ("ise");
227 ASSERT (result1 == NULL);
228 ASSERT (errno == ELOOP);
230 result2 = canonicalize_filename_mode ("ise", CAN_EXISTING);
231 ASSERT (result2 == NULL);
232 ASSERT (errno == ELOOP);
235 /* Check that alternate modes can resolve missing basenames. */
237 char *result1 = canonicalize_filename_mode (BASE "/zzz", CAN_ALL_BUT_LAST);
238 char *result2 = canonicalize_filename_mode (BASE "/zzz", CAN_MISSING);
239 char *result3 = canonicalize_filename_mode (BASE "/zzz/", CAN_ALL_BUT_LAST);
240 char *result4 = canonicalize_filename_mode (BASE "/zzz/", CAN_MISSING);
241 ASSERT (result1 != NULL);
242 ASSERT (result2 != NULL);
243 ASSERT (result3 != NULL);
244 ASSERT (result4 != NULL);
245 ASSERT (strcmp (result1, result2) == 0);
246 ASSERT (strcmp (result2, result3) == 0);
247 ASSERT (strcmp (result3, result4) == 0);
248 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/zzz"),
249 "/" BASE "/zzz") == 0);
256 /* Check that alternate modes can resolve broken symlink basenames. */
258 char *result1 = canonicalize_filename_mode (BASE "/ouk", CAN_ALL_BUT_LAST);
259 char *result2 = canonicalize_filename_mode (BASE "/ouk", CAN_MISSING);
260 char *result3 = canonicalize_filename_mode (BASE "/ouk/", CAN_ALL_BUT_LAST);
261 char *result4 = canonicalize_filename_mode (BASE "/ouk/", CAN_MISSING);
262 ASSERT (result1 != NULL);
263 ASSERT (result2 != NULL);
264 ASSERT (result3 != NULL);
265 ASSERT (result4 != NULL);
266 ASSERT (strcmp (result1, result2) == 0);
267 ASSERT (strcmp (result2, result3) == 0);
268 ASSERT (strcmp (result3, result4) == 0);
269 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/wum"),
270 "/" BASE "/wum") == 0);
277 /* Check that alternate modes can handle missing dirnames. */
279 char *result1 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_ALL_BUT_LAST);
280 char *result2 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_MISSING);
281 ASSERT (result1 == NULL);
282 ASSERT (result2 != NULL);
283 ASSERT (strcmp (result2 + strlen (result2) - 14, "/t-can.zzz/zzz") == 0);
287 /* Ensure that the following is resolved properly.
288 Before 2007-09-27, it would mistakenly report a loop. */
290 char *result1 = canonicalize_filename_mode (BASE, CAN_EXISTING);
291 char *result2 = canonicalize_filename_mode (BASE "/p/1", CAN_EXISTING);
292 ASSERT (result1 != NULL);
293 ASSERT (result2 != NULL);
294 ASSERT (strcmp (result2 + strlen (result1), "/d/2") == 0);
299 /* Check that leading // is honored correctly. */
303 char *result1 = canonicalize_file_name ("//.");
304 char *result2 = canonicalize_filename_mode ("//.", CAN_EXISTING);
305 char *result3 = canonicalize_file_name (BASE "/droot");
306 char *result4 = canonicalize_filename_mode (BASE "/droot", CAN_EXISTING);
311 ASSERT (stat ("/", &st1) == 0);
312 ASSERT (stat ("//", &st2) == 0);
313 if (SAME_INODE (st1, st2))
315 ASSERT (strcmp (result1, "/") == 0);
316 ASSERT (strcmp (result2, "/") == 0);
317 ASSERT (strcmp (result3, "/") == 0);
318 ASSERT (strcmp (result4, "/") == 0);
322 ASSERT (strcmp (result1, "//") == 0);
323 ASSERT (strcmp (result2, "//") == 0);
324 ASSERT (strcmp (result3, "//") == 0);
325 ASSERT (strcmp (result4, "//") == 0);
334 ASSERT (remove (BASE "/droot") == 0);
335 ASSERT (remove (BASE "/d/1") == 0);
336 ASSERT (remove (BASE "/d/2") == 0);
337 ASSERT (remove (BASE "/d") == 0);
338 ASSERT (remove (BASE "/s") == 0);
339 ASSERT (remove (BASE "/p") == 0);
340 ASSERT (remove (BASE "/plo") == 0);
341 ASSERT (remove (BASE "/huk") == 0);
342 ASSERT (remove (BASE "/bef") == 0);
343 ASSERT (remove (BASE "/ouk") == 0);
344 ASSERT (remove (BASE "/ket") == 0);
345 ASSERT (remove (BASE "/lum") == 0);
346 ASSERT (remove (BASE "/tra") == 0);
347 ASSERT (remove (BASE) == 0);
348 ASSERT (remove ("ise") == 0);