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"
32 # define symlink(a,b) (-1)
35 #define ASSERT(expr) \
40 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
47 #define BASE "t-can.tmp"
52 /* Setup some hierarchy to be used by this test. Start by removing
53 any leftovers from a previous partial run. */
56 ASSERT (system ("rm -rf " BASE " ise") == 0);
57 ASSERT (mkdir (BASE, 0700) == 0);
58 fd = creat (BASE "/tra", 0600);
60 ASSERT (close (fd) == 0);
63 /* Check for ., .., intermediate // handling, and for error cases. */
65 char *result1 = canonicalize_file_name (BASE "//./..//" BASE "/tra");
66 char *result2 = canonicalize_filename_mode (BASE "//./..//" BASE "/tra",
68 ASSERT (result1 != NULL);
69 ASSERT (result2 != NULL);
70 ASSERT (strcmp (result1, result2) == 0);
71 ASSERT (strstr (result1, "/" BASE "/tra")
72 == result1 + strlen (result1) - strlen ("/" BASE "/tra"));
76 result1 = canonicalize_file_name ("");
77 ASSERT (result1 == NULL);
78 ASSERT (errno == ENOENT);
80 result2 = canonicalize_filename_mode ("", CAN_EXISTING);
81 ASSERT (result2 == NULL);
82 ASSERT (errno == ENOENT);
84 result1 = canonicalize_file_name (NULL);
85 ASSERT (result1 == NULL);
86 ASSERT (errno == EINVAL);
88 result2 = canonicalize_filename_mode (NULL, CAN_EXISTING);
89 ASSERT (result2 == NULL);
90 ASSERT (errno == EINVAL);
93 /* From here on out, tests involve symlinks. */
94 if (symlink (BASE "/ket", "ise") != 0)
96 ASSERT (remove (BASE "/tra") == 0);
97 ASSERT (rmdir (BASE) == 0);
98 fputs ("skipping test: symlinks not supported on this filesystem\n",
102 ASSERT (symlink ("bef", BASE "/plo") == 0);
103 ASSERT (symlink ("tra", BASE "/huk") == 0);
104 ASSERT (symlink ("lum", BASE "/bef") == 0);
105 ASSERT (symlink ("wum", BASE "/ouk") == 0);
106 ASSERT (symlink ("../ise", BASE "/ket") == 0);
107 ASSERT (mkdir (BASE "/lum", 0700) == 0);
108 ASSERT (symlink ("s", BASE "/p") == 0);
109 ASSERT (symlink ("d", BASE "/s") == 0);
110 ASSERT (mkdir (BASE "/d", 0700) == 0);
111 ASSERT (close (creat (BASE "/d/2", 0600)) == 0);
112 ASSERT (symlink ("../s/2", BASE "/d/1") == 0);
114 /* Check that the symbolic link to a file can be resolved. */
116 char *result1 = canonicalize_file_name (BASE "/huk");
117 char *result2 = canonicalize_file_name (BASE "/tra");
118 char *result3 = canonicalize_filename_mode (BASE "/huk", CAN_EXISTING);
119 ASSERT (result1 != NULL);
120 ASSERT (result2 != NULL);
121 ASSERT (result3 != NULL);
122 ASSERT (strcmp (result1, result2) == 0);
123 ASSERT (strcmp (result2, result3) == 0);
124 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
125 "/" BASE "/tra") == 0);
131 /* Check that the symbolic link to a directory can be resolved. */
133 char *result1 = canonicalize_file_name (BASE "/plo");
134 char *result2 = canonicalize_file_name (BASE "/bef");
135 char *result3 = canonicalize_file_name (BASE "/lum");
136 char *result4 = canonicalize_filename_mode (BASE "/plo", CAN_EXISTING);
137 ASSERT (result1 != NULL);
138 ASSERT (result2 != NULL);
139 ASSERT (result3 != NULL);
140 ASSERT (result4 != NULL);
141 ASSERT (strcmp (result1, result2) == 0);
142 ASSERT (strcmp (result2, result3) == 0);
143 ASSERT (strcmp (result3, result4) == 0);
144 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
145 "/" BASE "/lum") == 0);
152 /* Check that a symbolic link to a nonexistent file yields NULL. */
157 result1 = canonicalize_file_name (BASE "/ouk");
158 ASSERT (result1 == NULL);
159 ASSERT (errno == ENOENT);
161 result2 = canonicalize_filename_mode (BASE "/ouk", CAN_EXISTING);
162 ASSERT (result2 == NULL);
163 ASSERT (errno == ENOENT);
166 /* Check that a loop of symbolic links is detected. */
171 result1 = canonicalize_file_name ("ise");
172 ASSERT (result1 == NULL);
173 ASSERT (errno == ELOOP);
175 result2 = canonicalize_filename_mode ("ise", CAN_EXISTING);
176 ASSERT (result2 == NULL);
177 ASSERT (errno == ELOOP);
180 /* Check that alternate modes can resolve missing basenames. */
182 char *result1 = canonicalize_filename_mode (BASE "/zzz", CAN_ALL_BUT_LAST);
183 char *result2 = canonicalize_filename_mode (BASE "/zzz", CAN_MISSING);
184 ASSERT (result1 != NULL);
185 ASSERT (result2 != NULL);
186 ASSERT (strcmp (result1, result2) == 0);
187 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/zzz"),
188 "/" BASE "/zzz") == 0);
193 /* Check that alternate modes can resolve broken symlink basenames. */
195 char *result1 = canonicalize_filename_mode (BASE "/ouk", CAN_ALL_BUT_LAST);
196 char *result2 = canonicalize_filename_mode (BASE "/ouk", CAN_MISSING);
197 ASSERT (result1 != NULL);
198 ASSERT (result2 != NULL);
199 ASSERT (strcmp (result1, result2) == 0);
200 ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/wum"),
201 "/" BASE "/wum") == 0);
206 /* Check that alternate modes can handle missing dirnames. */
208 char *result1 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_ALL_BUT_LAST);
209 char *result2 = canonicalize_filename_mode ("t-can.zzz/zzz", CAN_MISSING);
210 ASSERT (result1 == NULL);
211 ASSERT (result2 != NULL);
212 ASSERT (strcmp (result2 + strlen (result2) - 14, "/t-can.zzz/zzz") == 0);
216 /* Ensure that the following is resolved properly.
217 Before 2007-09-27, it would mistakenly report a loop. */
219 char *result1 = canonicalize_filename_mode (BASE, CAN_EXISTING);
220 char *result2 = canonicalize_filename_mode (BASE "/p/1", CAN_EXISTING);
221 ASSERT (result1 != NULL);
222 ASSERT (result2 != NULL);
223 ASSERT (strcmp (result2 + strlen (result1), "/d/2") == 0);
229 ASSERT (remove (BASE "/d/1") == 0);
230 ASSERT (remove (BASE "/d/2") == 0);
231 ASSERT (remove (BASE "/d") == 0);
232 ASSERT (remove (BASE "/s") == 0);
233 ASSERT (remove (BASE "/p") == 0);
234 ASSERT (remove (BASE "/plo") == 0);
235 ASSERT (remove (BASE "/huk") == 0);
236 ASSERT (remove (BASE "/bef") == 0);
237 ASSERT (remove (BASE "/ouk") == 0);
238 ASSERT (remove (BASE "/ket") == 0);
239 ASSERT (remove (BASE "/lum") == 0);
240 ASSERT (remove (BASE "/tra") == 0);
241 ASSERT (remove (BASE) == 0);
242 ASSERT (remove ("ise") == 0);