1 /* Test of execution of file name canonicalization.
2 Copyright (C) 2007-2010 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"
34 #define BASE "t-can.tmp"
45 /* Setup some hierarchy to be used by this test. Start by removing
46 any leftovers from a previous partial run. */
49 system ("rm -rf " BASE " ise");
50 ASSERT (mkdir (BASE, 0700) == 0);
51 fd = creat (BASE "/tra", 0600);
53 ASSERT (close (fd) == 0);
56 /* Check for ., .., intermediate // handling, and for error cases. */
58 char *result1 = canonicalize_file_name (BASE "//./..//" BASE "/tra");
59 char *result2 = canonicalize_filename_mode (BASE "//./..//" BASE "/tra",
61 ASSERT (result1 != NULL);
62 ASSERT (result2 != NULL);
63 ASSERT (strcmp (result1, result2) == 0);
64 ASSERT (strstr (result1, "/" BASE "/tra")
65 == result1 + strlen (result1) - strlen ("/" BASE "/tra"));
69 result1 = canonicalize_file_name ("");
70 ASSERT (result1 == NULL);
71 ASSERT (errno == ENOENT);
73 result2 = canonicalize_filename_mode ("", CAN_EXISTING);
74 ASSERT (result2 == NULL);
75 ASSERT (errno == ENOENT);
77 result1 = canonicalize_file_name (null_ptr ());
78 ASSERT (result1 == NULL);
79 ASSERT (errno == EINVAL);
81 result2 = canonicalize_filename_mode (NULL, CAN_EXISTING);
82 ASSERT (result2 == NULL);
83 ASSERT (errno == EINVAL);
86 /* Check that a non-directory with trailing slash yields NULL. */
91 result1 = canonicalize_file_name (BASE "/tra/");
92 ASSERT (result1 == NULL);
93 ASSERT (errno == ENOTDIR);
95 result2 = canonicalize_filename_mode (BASE "/tra/", CAN_EXISTING);
96 ASSERT (result2 == NULL);
97 ASSERT (errno == ENOTDIR);
100 /* Check that a missing directory yields NULL. */
105 result1 = canonicalize_file_name (BASE "/zzz/..");
106 ASSERT (result1 == NULL);
107 ASSERT (errno == ENOENT);
109 result2 = canonicalize_filename_mode (BASE "/zzz/..", CAN_EXISTING);
110 ASSERT (result2 == NULL);
111 ASSERT (errno == ENOENT);
114 /* From here on out, tests involve symlinks. */
115 if (symlink (BASE "/ket", "ise") != 0)
117 ASSERT (remove (BASE "/tra") == 0);
118 ASSERT (rmdir (BASE) == 0);
119 fputs ("skipping test: symlinks not supported on this file system\n",
123 ASSERT (symlink ("bef", BASE "/plo") == 0);
124 ASSERT (symlink ("tra", BASE "/huk") == 0);
125 ASSERT (symlink ("lum", BASE "/bef") == 0);
126 ASSERT (symlink ("wum", BASE "/ouk") == 0);
127 ASSERT (symlink ("../ise", BASE "/ket") == 0);
128 ASSERT (mkdir (BASE "/lum", 0700) == 0);
129 ASSERT (symlink ("s", BASE "/p") == 0);
130 ASSERT (symlink ("d", BASE "/s") == 0);
131 ASSERT (mkdir (BASE "/d", 0700) == 0);
132 ASSERT (close (creat (BASE "/d/2", 0600)) == 0);
133 ASSERT (symlink ("../s/2", BASE "/d/1") == 0);
134 ASSERT (symlink ("//.//../..", BASE "/droot") == 0);
136 /* Check that the symbolic link to a file can be resolved. */
138 char *result1 = canonicalize_file_name (BASE "/huk");
139 char *result2 = canonicalize_file_name (BASE "/tra");
140 char *result3 = canonicalize_filename_mode (BASE "/huk", CAN_EXISTING);
141 ASSERT (result1 != NULL);
142 ASSERT (result2 != NULL);
143 ASSERT (result3 != NULL);
144 ASSERT (strcmp (result1, result2) == 0);
145 ASSERT (strcmp (result2, result3) == 0);
146 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
147 "/" BASE "/tra") == 0);
153 /* Check that the symbolic link to a directory can be resolved. */
155 char *result1 = canonicalize_file_name (BASE "/plo");
156 char *result2 = canonicalize_file_name (BASE "/bef");
157 char *result3 = canonicalize_file_name (BASE "/lum");
158 char *result4 = canonicalize_filename_mode (BASE "/plo", CAN_EXISTING);
159 ASSERT (result1 != NULL);
160 ASSERT (result2 != NULL);
161 ASSERT (result3 != NULL);
162 ASSERT (result4 != NULL);
163 ASSERT (strcmp (result1, result2) == 0);
164 ASSERT (strcmp (result2, result3) == 0);
165 ASSERT (strcmp (result3, result4) == 0);
166 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
167 "/" BASE "/lum") == 0);
174 /* Check that a symbolic link to a nonexistent file yields NULL. */
179 result1 = canonicalize_file_name (BASE "/ouk");
180 ASSERT (result1 == NULL);
181 ASSERT (errno == ENOENT);
183 result2 = canonicalize_filename_mode (BASE "/ouk", CAN_EXISTING);
184 ASSERT (result2 == NULL);
185 ASSERT (errno == ENOENT);
188 /* Check that a non-directory symlink with trailing slash yields NULL. */
193 result1 = canonicalize_file_name (BASE "/huk/");
194 ASSERT (result1 == NULL);
195 ASSERT (errno == ENOTDIR);
197 result2 = canonicalize_filename_mode (BASE "/huk/", CAN_EXISTING);
198 ASSERT (result2 == NULL);
199 ASSERT (errno == ENOTDIR);
202 /* Check that a missing directory via symlink yields NULL. */
207 result1 = canonicalize_file_name (BASE "/ouk/..");
208 ASSERT (result1 == NULL);
209 ASSERT (errno == ENOENT);
211 result2 = canonicalize_filename_mode (BASE "/ouk/..", CAN_EXISTING);
212 ASSERT (result2 == NULL);
213 ASSERT (errno == ENOENT);
216 /* Check that a loop of symbolic links is detected. */
221 result1 = canonicalize_file_name ("ise");
222 ASSERT (result1 == NULL);
223 ASSERT (errno == ELOOP);
225 result2 = canonicalize_filename_mode ("ise", CAN_EXISTING);
226 ASSERT (result2 == NULL);
227 ASSERT (errno == ELOOP);
230 /* Check that alternate modes can resolve missing basenames. */
232 char *result1 = canonicalize_filename_mode (BASE "/zzz", CAN_ALL_BUT_LAST);
233 char *result2 = canonicalize_filename_mode (BASE "/zzz", CAN_MISSING);
234 char *result3 = canonicalize_filename_mode (BASE "/zzz/", CAN_ALL_BUT_LAST);
235 char *result4 = canonicalize_filename_mode (BASE "/zzz/", CAN_MISSING);
236 ASSERT (result1 != NULL);
237 ASSERT (result2 != NULL);
238 ASSERT (result3 != NULL);
239 ASSERT (result4 != NULL);
240 ASSERT (strcmp (result1, result2) == 0);
241 ASSERT (strcmp (result2, result3) == 0);
242 ASSERT (strcmp (result3, result4) == 0);
243 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/zzz"),
244 "/" BASE "/zzz") == 0);
251 /* Check that alternate modes can resolve broken symlink basenames. */
253 char *result1 = canonicalize_filename_mode (BASE "/ouk", CAN_ALL_BUT_LAST);
254 char *result2 = canonicalize_filename_mode (BASE "/ouk", CAN_MISSING);
255 char *result3 = canonicalize_filename_mode (BASE "/ouk/", CAN_ALL_BUT_LAST);
256 char *result4 = canonicalize_filename_mode (BASE "/ouk/", CAN_MISSING);
257 ASSERT (result1 != NULL);
258 ASSERT (result2 != NULL);
259 ASSERT (result3 != NULL);
260 ASSERT (result4 != NULL);
261 ASSERT (strcmp (result1, result2) == 0);
262 ASSERT (strcmp (result2, result3) == 0);
263 ASSERT (strcmp (result3, result4) == 0);
264 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/wum"),
265 "/" BASE "/wum") == 0);
272 /* Check that alternate modes can handle missing dirnames. */
274 char *result1 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_ALL_BUT_LAST);
275 char *result2 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_MISSING);
276 ASSERT (result1 == NULL);
277 ASSERT (result2 != NULL);
278 ASSERT (strcmp (result2 + strlen (result2) - 14, "/t-can.zzz/zzz") == 0);
282 /* Ensure that the following is resolved properly.
283 Before 2007-09-27, it would mistakenly report a loop. */
285 char *result1 = canonicalize_filename_mode (BASE, CAN_EXISTING);
286 char *result2 = canonicalize_filename_mode (BASE "/p/1", CAN_EXISTING);
287 ASSERT (result1 != NULL);
288 ASSERT (result2 != NULL);
289 ASSERT (strcmp (result2 + strlen (result1), "/d/2") == 0);
294 /* Check that leading // is honored correctly. */
298 char *result1 = canonicalize_file_name ("//.");
299 char *result2 = canonicalize_filename_mode ("//.", CAN_EXISTING);
300 char *result3 = canonicalize_file_name (BASE "/droot");
301 char *result4 = canonicalize_filename_mode (BASE "/droot", CAN_EXISTING);
306 ASSERT (stat ("/", &st1) == 0);
307 ASSERT (stat ("//", &st2) == 0);
308 if (SAME_INODE (st1, st2))
310 ASSERT (strcmp (result1, "/") == 0);
311 ASSERT (strcmp (result2, "/") == 0);
312 ASSERT (strcmp (result3, "/") == 0);
313 ASSERT (strcmp (result4, "/") == 0);
317 ASSERT (strcmp (result1, "//") == 0);
318 ASSERT (strcmp (result2, "//") == 0);
319 ASSERT (strcmp (result3, "//") == 0);
320 ASSERT (strcmp (result4, "//") == 0);
329 ASSERT (remove (BASE "/droot") == 0);
330 ASSERT (remove (BASE "/d/1") == 0);
331 ASSERT (remove (BASE "/d/2") == 0);
332 ASSERT (remove (BASE "/d") == 0);
333 ASSERT (remove (BASE "/s") == 0);
334 ASSERT (remove (BASE "/p") == 0);
335 ASSERT (remove (BASE "/plo") == 0);
336 ASSERT (remove (BASE "/huk") == 0);
337 ASSERT (remove (BASE "/bef") == 0);
338 ASSERT (remove (BASE "/ouk") == 0);
339 ASSERT (remove (BASE "/ket") == 0);
340 ASSERT (remove (BASE "/lum") == 0);
341 ASSERT (remove (BASE "/tra") == 0);
342 ASSERT (remove (BASE) == 0);
343 ASSERT (remove ("ise") == 0);