]>
Commit | Line | Data |
---|---|---|
b88a18e1 | 1 | /* Basic test for scandir function. |
581c785b | 2 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
b88a18e1 RM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
b88a18e1 | 18 | |
ceaa9889 | 19 | #include <stdbool.h> |
b88a18e1 RM |
20 | #include <dirent.h> |
21 | #include <errno.h> | |
22 | #include <stdio.h> | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | ||
26 | #ifndef D | |
27 | # define D(x) x | |
28 | #endif | |
29 | ||
30 | static void prepare (void); | |
31 | static int do_test (void); | |
32 | #define PREPARE(argc, argv) prepare () | |
33 | #define TEST_FUNCTION do_test () | |
34 | #include "../test-skeleton.c" | |
35 | ||
36 | static const char *scandir_test_dir; | |
37 | ||
38 | static void | |
39 | prepare (void) | |
40 | { | |
41 | size_t test_dir_len = strlen (test_dir); | |
42 | static const char dir_name[] = "/tst-scandir.XXXXXX"; | |
43 | ||
44 | size_t dirbuflen = test_dir_len + sizeof (dir_name); | |
45 | char *dirbuf = malloc (dirbuflen); | |
46 | if (dirbuf == NULL) | |
47 | { | |
48 | puts ("out of memory"); | |
49 | exit (1); | |
50 | } | |
51 | ||
52 | snprintf (dirbuf, dirbuflen, "%s%s", test_dir, dir_name); | |
53 | if (mkdtemp (dirbuf) == NULL) | |
54 | { | |
55 | puts ("cannot create temporary directory"); | |
56 | exit (1); | |
57 | } | |
58 | ||
59 | add_temp_file (dirbuf); | |
60 | scandir_test_dir = dirbuf; | |
61 | } | |
62 | ||
63 | /* The directory should be empty save the . and .. files. */ | |
64 | static void | |
65 | verify_empty (const char *dirname) | |
66 | { | |
67 | DIR *dir = opendir (dirname); | |
68 | if (dir == NULL) | |
69 | { | |
70 | printf ("opendir (%s): %s\n", dirname, strerror (errno)); | |
71 | exit (1); | |
72 | } | |
73 | ||
74 | struct dirent64 *d; | |
75 | while ((d = readdir64 (dir)) != NULL) | |
76 | if (strcmp (d->d_name, ".") != 0 && strcmp (d->d_name, "..") != 0) | |
77 | { | |
78 | printf ("temp directory contains file \"%s\"\n", d->d_name); | |
79 | exit (1); | |
80 | } | |
81 | ||
82 | closedir (dir); | |
83 | } | |
84 | ||
85 | static void | |
86 | make_file (const char *dirname, const char *filename) | |
87 | { | |
88 | char *name = NULL; | |
89 | if (asprintf (&name, "%s/%s", dirname, filename) < 0) | |
90 | { | |
91 | puts ("out of memory"); | |
92 | exit (1); | |
93 | } | |
94 | ||
95 | int fd = open (name, O_WRONLY | O_CREAT | O_EXCL, 0600); | |
96 | if (fd < 0) | |
97 | { | |
98 | printf ("cannot create \"%s\": %s\n", name, strerror (errno)); | |
99 | exit (1); | |
100 | } | |
101 | close (fd); | |
102 | ||
103 | free (name); | |
104 | } | |
105 | ||
106 | static void | |
107 | remove_file (const char *dirname, const char *filename) | |
108 | { | |
109 | char *name = NULL; | |
110 | if (asprintf (&name, "%s/%s", dirname, filename) < 0) | |
111 | { | |
112 | puts ("out of memory"); | |
113 | exit (1); | |
114 | } | |
115 | ||
116 | remove (name); | |
117 | ||
118 | free (name); | |
119 | } | |
120 | ||
121 | static void | |
122 | freelist (struct D(dirent) **list, size_t n) | |
123 | { | |
124 | for (size_t i = 0; i < n; ++i) | |
125 | free (list[i]); | |
126 | free (list); | |
127 | } | |
128 | ||
129 | static int | |
130 | select_a (const struct D(dirent) *d) | |
131 | { | |
132 | return d->d_name[0] == 'a'; | |
133 | } | |
134 | ||
135 | static int | |
136 | do_test (void) | |
137 | { | |
138 | verify_empty (scandir_test_dir); | |
139 | ||
140 | make_file (scandir_test_dir, "c"); | |
141 | make_file (scandir_test_dir, "aa"); | |
142 | make_file (scandir_test_dir, "b"); | |
143 | make_file (scandir_test_dir, "a"); | |
144 | ||
145 | ||
146 | /* First a basic test with no select or compare functions. */ | |
147 | ||
148 | struct D(dirent) **list; | |
149 | int n = D(scandir) (scandir_test_dir, &list, NULL, NULL); | |
150 | if (n < 0) | |
151 | { | |
152 | printf ("scandir failed on %s: %s\n", | |
153 | scandir_test_dir, strerror (errno)); | |
154 | return 1; | |
155 | } | |
156 | if (n != 6) | |
157 | { | |
158 | printf ("scandir returned %d entries instead of 6\n", n); | |
159 | return 1; | |
160 | } | |
161 | ||
162 | struct | |
163 | { | |
164 | const char *name; | |
165 | bool found; | |
166 | } expected[] = | |
167 | { | |
168 | { ".", }, | |
169 | { "..", }, | |
170 | { "a", }, | |
171 | { "aa", }, | |
172 | { "b", }, | |
173 | { "c", }, | |
174 | }; | |
175 | ||
176 | /* Verify the results, ignoring the order. */ | |
177 | for (int i = 0; i < n; ++i) | |
178 | { | |
179 | for (size_t j = 0; j < sizeof expected / sizeof expected[0]; ++j) | |
180 | if (!strcmp (list[i]->d_name, expected[j].name)) | |
181 | { | |
182 | expected[j].found = true; | |
183 | goto found; | |
184 | } | |
185 | ||
186 | printf ("scandir yields unexpected entry [%d] \"%s\"\n", | |
187 | i, list[i]->d_name); | |
188 | return 1; | |
189 | ||
190 | found:; | |
191 | } | |
192 | ||
193 | for (size_t j = 0; j < sizeof expected / sizeof expected[0]; ++j) | |
194 | if (!expected[j].found) | |
195 | { | |
196 | printf ("failed to produce \"%s\"\n", expected[j].name); | |
197 | return 1; | |
198 | } | |
199 | ||
200 | freelist (list, n); | |
201 | ||
202 | ||
203 | /* Now a test with a comparison function. */ | |
204 | ||
205 | n = D(scandir) (scandir_test_dir, &list, NULL, &D(alphasort)); | |
206 | if (n < 0) | |
207 | { | |
208 | printf ("scandir failed on %s: %s\n", | |
209 | scandir_test_dir, strerror (errno)); | |
210 | return 1; | |
211 | } | |
212 | if (n != 6) | |
213 | { | |
214 | printf ("scandir returned %d entries instead of 6\n", n); | |
215 | return 1; | |
216 | } | |
217 | ||
218 | assert (sizeof expected / sizeof expected[0] == 6); | |
219 | for (int i = 0; i < n; ++i) | |
220 | if (strcmp (list[i]->d_name, expected[i].name)) | |
221 | { | |
222 | printf ("scandir yields [%d] of \"%s\", expected \"%s\"\n", | |
223 | i, list[i]->d_name, expected[i].name); | |
224 | return 1; | |
225 | } | |
226 | ||
227 | freelist (list, n); | |
228 | ||
229 | ||
230 | /* Now a test with a select function but no comparison function. */ | |
231 | ||
232 | n = D(scandir) (scandir_test_dir, &list, &select_a, NULL); | |
233 | if (n < 0) | |
234 | { | |
235 | printf ("scandir failed on %s: %s\n", | |
236 | scandir_test_dir, strerror (errno)); | |
237 | return 1; | |
238 | } | |
239 | if (n != 2) | |
240 | { | |
241 | printf ("scandir returned %d entries instead of 2\n", n); | |
242 | return 1; | |
243 | } | |
244 | ||
245 | if (strcmp (list[0]->d_name, "a") && strcmp (list[0]->d_name, "aa")) | |
246 | { | |
247 | printf ("scandir yields [0] \"%s\", expected \"a\" or \"aa\"\n", | |
248 | list[0]->d_name); | |
249 | return 1; | |
250 | } | |
251 | if (strcmp (list[1]->d_name, "a") && strcmp (list[1]->d_name, "aa")) | |
252 | { | |
253 | printf ("scandir yields [1] \"%s\", expected \"a\" or \"aa\"\n", | |
254 | list[1]->d_name); | |
255 | return 1; | |
256 | } | |
257 | if (!strcmp (list[0]->d_name, list[1]->d_name)) | |
258 | { | |
259 | printf ("scandir yields \"%s\" twice!\n", list[0]->d_name); | |
260 | return 1; | |
261 | } | |
262 | ||
263 | freelist (list, n); | |
264 | ||
265 | ||
266 | /* Now a test with both functions. */ | |
267 | ||
268 | n = D(scandir) (scandir_test_dir, &list, &select_a, &D(alphasort)); | |
269 | if (n < 0) | |
270 | { | |
271 | printf ("scandir failed on %s: %s\n", | |
272 | scandir_test_dir, strerror (errno)); | |
273 | return 1; | |
274 | } | |
275 | if (n != 2) | |
276 | { | |
277 | printf ("scandir returned %d entries instead of 2\n", n); | |
278 | return 1; | |
279 | } | |
280 | ||
281 | if (strcmp (list[0]->d_name, "a") || strcmp (list[1]->d_name, "aa")) | |
282 | { | |
283 | printf ("scandir yields {\"%s\", \"%s\"}, expected {\"a\", \"aa\"}\n", | |
284 | list[0]->d_name, list[1]->d_name); | |
285 | return 1; | |
286 | } | |
287 | ||
288 | freelist (list, n); | |
289 | ||
290 | ||
291 | /* Clean up the test directory. */ | |
292 | remove_file (scandir_test_dir, "c"); | |
293 | remove_file (scandir_test_dir, "aa"); | |
294 | remove_file (scandir_test_dir, "b"); | |
295 | remove_file (scandir_test_dir, "a"); | |
b88a18e1 RM |
296 | |
297 | return 0; | |
298 | } |