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"
56 /* Setup some hierarchy to be used by this test. Start by removing
57 any leftovers from a previous partial run. */
60 ASSERT (system ("rm -rf " BASE " ise") == 0);
61 ASSERT (mkdir (BASE, 0700) == 0);
62 fd = creat (BASE "/tra", 0600);
64 ASSERT (close (fd) == 0);
67 /* Check for ., .., intermediate // handling, and for error cases. */
69 char *result1 = canonicalize_file_name (BASE "//./..//" BASE "/tra");
70 char *result2 = canonicalize_filename_mode (BASE "//./..//" BASE "/tra",
72 ASSERT (result1 != NULL);
73 ASSERT (result2 != NULL);
74 ASSERT (strcmp (result1, result2) == 0);
75 ASSERT (strstr (result1, "/" BASE "/tra")
76 == result1 + strlen (result1) - strlen ("/" BASE "/tra"));
80 result1 = canonicalize_file_name ("");
81 ASSERT (result1 == NULL);
82 ASSERT (errno == ENOENT);
84 result2 = canonicalize_filename_mode ("", CAN_EXISTING);
85 ASSERT (result2 == NULL);
86 ASSERT (errno == ENOENT);
88 result1 = canonicalize_file_name (null_ptr ());
89 ASSERT (result1 == NULL);
90 ASSERT (errno == EINVAL);
92 result2 = canonicalize_filename_mode (NULL, CAN_EXISTING);
93 ASSERT (result2 == NULL);
94 ASSERT (errno == EINVAL);
97 /* Check that a non-directory with trailing slash yields NULL. */
102 result1 = canonicalize_file_name (BASE "/tra/");
103 ASSERT (result1 == NULL);
104 ASSERT (errno == ENOTDIR);
106 result2 = canonicalize_filename_mode (BASE "/tra/", CAN_EXISTING);
107 ASSERT (result2 == NULL);
108 ASSERT (errno == ENOTDIR);
111 /* Check that a missing directory yields NULL. */
116 result1 = canonicalize_file_name (BASE "/zzz/..");
117 ASSERT (result1 == NULL);
118 ASSERT (errno == ENOENT);
120 result2 = canonicalize_filename_mode (BASE "/zzz/..", CAN_EXISTING);
121 ASSERT (result2 == NULL);
122 ASSERT (errno == ENOENT);
125 /* From here on out, tests involve symlinks. */
126 if (symlink (BASE "/ket", "ise") != 0)
128 ASSERT (remove (BASE "/tra") == 0);
129 ASSERT (rmdir (BASE) == 0);
130 fputs ("skipping test: symlinks not supported on this file system\n",
134 ASSERT (symlink ("bef", BASE "/plo") == 0);
135 ASSERT (symlink ("tra", BASE "/huk") == 0);
136 ASSERT (symlink ("lum", BASE "/bef") == 0);
137 ASSERT (symlink ("wum", BASE "/ouk") == 0);
138 ASSERT (symlink ("../ise", BASE "/ket") == 0);
139 ASSERT (mkdir (BASE "/lum", 0700) == 0);
140 ASSERT (symlink ("s", BASE "/p") == 0);
141 ASSERT (symlink ("d", BASE "/s") == 0);
142 ASSERT (mkdir (BASE "/d", 0700) == 0);
143 ASSERT (close (creat (BASE "/d/2", 0600)) == 0);
144 ASSERT (symlink ("../s/2", BASE "/d/1") == 0);
145 ASSERT (symlink ("//.//../..", BASE "/droot") == 0);
147 /* Check that the symbolic link to a file can be resolved. */
149 char *result1 = canonicalize_file_name (BASE "/huk");
150 char *result2 = canonicalize_file_name (BASE "/tra");
151 char *result3 = canonicalize_filename_mode (BASE "/huk", CAN_EXISTING);
152 ASSERT (result1 != NULL);
153 ASSERT (result2 != NULL);
154 ASSERT (result3 != NULL);
155 ASSERT (strcmp (result1, result2) == 0);
156 ASSERT (strcmp (result2, result3) == 0);
157 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
158 "/" BASE "/tra") == 0);
164 /* Check that the symbolic link to a directory can be resolved. */
166 char *result1 = canonicalize_file_name (BASE "/plo");
167 char *result2 = canonicalize_file_name (BASE "/bef");
168 char *result3 = canonicalize_file_name (BASE "/lum");
169 char *result4 = canonicalize_filename_mode (BASE "/plo", CAN_EXISTING);
170 ASSERT (result1 != NULL);
171 ASSERT (result2 != NULL);
172 ASSERT (result3 != NULL);
173 ASSERT (result4 != NULL);
174 ASSERT (strcmp (result1, result2) == 0);
175 ASSERT (strcmp (result2, result3) == 0);
176 ASSERT (strcmp (result3, result4) == 0);
177 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
178 "/" BASE "/lum") == 0);
185 /* Check that a symbolic link to a nonexistent file yields NULL. */
190 result1 = canonicalize_file_name (BASE "/ouk");
191 ASSERT (result1 == NULL);
192 ASSERT (errno == ENOENT);
194 result2 = canonicalize_filename_mode (BASE "/ouk", CAN_EXISTING);
195 ASSERT (result2 == NULL);
196 ASSERT (errno == ENOENT);
199 /* Check that a non-directory symlink with trailing slash yields NULL. */
204 result1 = canonicalize_file_name (BASE "/huk/");
205 ASSERT (result1 == NULL);
206 ASSERT (errno == ENOTDIR);
208 result2 = canonicalize_filename_mode (BASE "/huk/", CAN_EXISTING);
209 ASSERT (result2 == NULL);
210 ASSERT (errno == ENOTDIR);
213 /* Check that a missing directory via symlink yields NULL. */
218 result1 = canonicalize_file_name (BASE "/ouk/..");
219 ASSERT (result1 == NULL);
220 ASSERT (errno == ENOENT);
222 result2 = canonicalize_filename_mode (BASE "/ouk/..", CAN_EXISTING);
223 ASSERT (result2 == NULL);
224 ASSERT (errno == ENOENT);
227 /* Check that a loop of symbolic links is detected. */
232 result1 = canonicalize_file_name ("ise");
233 ASSERT (result1 == NULL);
234 ASSERT (errno == ELOOP);
236 result2 = canonicalize_filename_mode ("ise", CAN_EXISTING);
237 ASSERT (result2 == NULL);
238 ASSERT (errno == ELOOP);
241 /* Check that alternate modes can resolve missing basenames. */
243 char *result1 = canonicalize_filename_mode (BASE "/zzz", CAN_ALL_BUT_LAST);
244 char *result2 = canonicalize_filename_mode (BASE "/zzz", CAN_MISSING);
245 char *result3 = canonicalize_filename_mode (BASE "/zzz/", CAN_ALL_BUT_LAST);
246 char *result4 = canonicalize_filename_mode (BASE "/zzz/", CAN_MISSING);
247 ASSERT (result1 != NULL);
248 ASSERT (result2 != NULL);
249 ASSERT (result3 != NULL);
250 ASSERT (result4 != NULL);
251 ASSERT (strcmp (result1, result2) == 0);
252 ASSERT (strcmp (result2, result3) == 0);
253 ASSERT (strcmp (result3, result4) == 0);
254 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/zzz"),
255 "/" BASE "/zzz") == 0);
262 /* Check that alternate modes can resolve broken symlink basenames. */
264 char *result1 = canonicalize_filename_mode (BASE "/ouk", CAN_ALL_BUT_LAST);
265 char *result2 = canonicalize_filename_mode (BASE "/ouk", CAN_MISSING);
266 char *result3 = canonicalize_filename_mode (BASE "/ouk/", CAN_ALL_BUT_LAST);
267 char *result4 = canonicalize_filename_mode (BASE "/ouk/", CAN_MISSING);
268 ASSERT (result1 != NULL);
269 ASSERT (result2 != NULL);
270 ASSERT (result3 != NULL);
271 ASSERT (result4 != NULL);
272 ASSERT (strcmp (result1, result2) == 0);
273 ASSERT (strcmp (result2, result3) == 0);
274 ASSERT (strcmp (result3, result4) == 0);
275 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/wum"),
276 "/" BASE "/wum") == 0);
283 /* Check that alternate modes can handle missing dirnames. */
285 char *result1 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_ALL_BUT_LAST);
286 char *result2 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_MISSING);
287 ASSERT (result1 == NULL);
288 ASSERT (result2 != NULL);
289 ASSERT (strcmp (result2 + strlen (result2) - 14, "/t-can.zzz/zzz") == 0);
293 /* Ensure that the following is resolved properly.
294 Before 2007-09-27, it would mistakenly report a loop. */
296 char *result1 = canonicalize_filename_mode (BASE, CAN_EXISTING);
297 char *result2 = canonicalize_filename_mode (BASE "/p/1", CAN_EXISTING);
298 ASSERT (result1 != NULL);
299 ASSERT (result2 != NULL);
300 ASSERT (strcmp (result2 + strlen (result1), "/d/2") == 0);
305 /* Check that leading // is honored correctly. */
309 char *result1 = canonicalize_file_name ("//.");
310 char *result2 = canonicalize_filename_mode ("//.", CAN_EXISTING);
311 char *result3 = canonicalize_file_name (BASE "/droot");
312 char *result4 = canonicalize_filename_mode (BASE "/droot", CAN_EXISTING);
317 ASSERT (stat ("/", &st1) == 0);
318 ASSERT (stat ("//", &st2) == 0);
319 if (SAME_INODE (st1, st2))
321 ASSERT (strcmp (result1, "/") == 0);
322 ASSERT (strcmp (result2, "/") == 0);
323 ASSERT (strcmp (result3, "/") == 0);
324 ASSERT (strcmp (result4, "/") == 0);
328 ASSERT (strcmp (result1, "//") == 0);
329 ASSERT (strcmp (result2, "//") == 0);
330 ASSERT (strcmp (result3, "//") == 0);
331 ASSERT (strcmp (result4, "//") == 0);
340 ASSERT (remove (BASE "/droot") == 0);
341 ASSERT (remove (BASE "/d/1") == 0);
342 ASSERT (remove (BASE "/d/2") == 0);
343 ASSERT (remove (BASE "/d") == 0);
344 ASSERT (remove (BASE "/s") == 0);
345 ASSERT (remove (BASE "/p") == 0);
346 ASSERT (remove (BASE "/plo") == 0);
347 ASSERT (remove (BASE "/huk") == 0);
348 ASSERT (remove (BASE "/bef") == 0);
349 ASSERT (remove (BASE "/ouk") == 0);
350 ASSERT (remove (BASE "/ket") == 0);
351 ASSERT (remove (BASE "/lum") == 0);
352 ASSERT (remove (BASE "/tra") == 0);
353 ASSERT (remove (BASE) == 0);
354 ASSERT (remove ("ise") == 0);