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-rw-r--r--lib/glob.c164
1 files changed, 0 insertions, 164 deletions
diff --git a/lib/glob.c b/lib/glob.c
index 500fc80d23e1..0ba3ea86b546 100644
--- a/lib/glob.c
+++ b/lib/glob.c
@@ -121,167 +121,3 @@ backtrack:
121 } 121 }
122} 122}
123EXPORT_SYMBOL(glob_match); 123EXPORT_SYMBOL(glob_match);
124
125
126#ifdef CONFIG_GLOB_SELFTEST
127
128#include <linux/printk.h>
129#include <linux/moduleparam.h>
130
131/* Boot with "glob.verbose=1" to show successful tests, too */
132static bool verbose = false;
133module_param(verbose, bool, 0);
134
135struct glob_test {
136 char const *pat, *str;
137 bool expected;
138};
139
140static bool __pure __init test(char const *pat, char const *str, bool expected)
141{
142 bool match = glob_match(pat, str);
143 bool success = match == expected;
144
145 /* Can't get string literals into a particular section, so... */
146 static char const msg_error[] __initconst =
147 KERN_ERR "glob: \"%s\" vs. \"%s\": %s *** ERROR ***\n";
148 static char const msg_ok[] __initconst =
149 KERN_DEBUG "glob: \"%s\" vs. \"%s\": %s OK\n";
150 static char const mismatch[] __initconst = "mismatch";
151 char const *message;
152
153 if (!success)
154 message = msg_error;
155 else if (verbose)
156 message = msg_ok;
157 else
158 return success;
159
160 printk(message, pat, str, mismatch + 3*match);
161 return success;
162}
163
164/*
165 * The tests are all jammed together in one array to make it simpler
166 * to place that array in the .init.rodata section. The obvious
167 * "array of structures containing char *" has no way to force the
168 * pointed-to strings to be in a particular section.
169 *
170 * Anyway, a test consists of:
171 * 1. Expected glob_match result: '1' or '0'.
172 * 2. Pattern to match: null-terminated string
173 * 3. String to match against: null-terminated string
174 *
175 * The list of tests is terminated with a final '\0' instead of
176 * a glob_match result character.
177 */
178static char const glob_tests[] __initconst =
179 /* Some basic tests */
180 "1" "a\0" "a\0"
181 "0" "a\0" "b\0"
182 "0" "a\0" "aa\0"
183 "0" "a\0" "\0"
184 "1" "\0" "\0"
185 "0" "\0" "a\0"
186 /* Simple character class tests */
187 "1" "[a]\0" "a\0"
188 "0" "[a]\0" "b\0"
189 "0" "[!a]\0" "a\0"
190 "1" "[!a]\0" "b\0"
191 "1" "[ab]\0" "a\0"
192 "1" "[ab]\0" "b\0"
193 "0" "[ab]\0" "c\0"
194 "1" "[!ab]\0" "c\0"
195 "1" "[a-c]\0" "b\0"
196 "0" "[a-c]\0" "d\0"
197 /* Corner cases in character class parsing */
198 "1" "[a-c-e-g]\0" "-\0"
199 "0" "[a-c-e-g]\0" "d\0"
200 "1" "[a-c-e-g]\0" "f\0"
201 "1" "[]a-ceg-ik[]\0" "a\0"
202 "1" "[]a-ceg-ik[]\0" "]\0"
203 "1" "[]a-ceg-ik[]\0" "[\0"
204 "1" "[]a-ceg-ik[]\0" "h\0"
205 "0" "[]a-ceg-ik[]\0" "f\0"
206 "0" "[!]a-ceg-ik[]\0" "h\0"
207 "0" "[!]a-ceg-ik[]\0" "]\0"
208 "1" "[!]a-ceg-ik[]\0" "f\0"
209 /* Simple wild cards */
210 "1" "?\0" "a\0"
211 "0" "?\0" "aa\0"
212 "0" "??\0" "a\0"
213 "1" "?x?\0" "axb\0"
214 "0" "?x?\0" "abx\0"
215 "0" "?x?\0" "xab\0"
216 /* Asterisk wild cards (backtracking) */
217 "0" "*??\0" "a\0"
218 "1" "*??\0" "ab\0"
219 "1" "*??\0" "abc\0"
220 "1" "*??\0" "abcd\0"
221 "0" "??*\0" "a\0"
222 "1" "??*\0" "ab\0"
223 "1" "??*\0" "abc\0"
224 "1" "??*\0" "abcd\0"
225 "0" "?*?\0" "a\0"
226 "1" "?*?\0" "ab\0"
227 "1" "?*?\0" "abc\0"
228 "1" "?*?\0" "abcd\0"
229 "1" "*b\0" "b\0"
230 "1" "*b\0" "ab\0"
231 "0" "*b\0" "ba\0"
232 "1" "*b\0" "bb\0"
233 "1" "*b\0" "abb\0"
234 "1" "*b\0" "bab\0"
235 "1" "*bc\0" "abbc\0"
236 "1" "*bc\0" "bc\0"
237 "1" "*bc\0" "bbc\0"
238 "1" "*bc\0" "bcbc\0"
239 /* Multiple asterisks (complex backtracking) */
240 "1" "*ac*\0" "abacadaeafag\0"
241 "1" "*ac*ae*ag*\0" "abacadaeafag\0"
242 "1" "*a*b*[bc]*[ef]*g*\0" "abacadaeafag\0"
243 "0" "*a*b*[ef]*[cd]*g*\0" "abacadaeafag\0"
244 "1" "*abcd*\0" "abcabcabcabcdefg\0"
245 "1" "*ab*cd*\0" "abcabcabcabcdefg\0"
246 "1" "*abcd*abcdef*\0" "abcabcdabcdeabcdefg\0"
247 "0" "*abcd*\0" "abcabcabcabcefg\0"
248 "0" "*ab*cd*\0" "abcabcabcabcefg\0";
249
250static int __init glob_init(void)
251{
252 unsigned successes = 0;
253 unsigned n = 0;
254 char const *p = glob_tests;
255 static char const message[] __initconst =
256 KERN_INFO "glob: %u self-tests passed, %u failed\n";
257
258 /*
259 * Tests are jammed together in a string. The first byte is '1'
260 * or '0' to indicate the expected outcome, or '\0' to indicate the
261 * end of the tests. Then come two null-terminated strings: the
262 * pattern and the string to match it against.
263 */
264 while (*p) {
265 bool expected = *p++ & 1;
266 char const *pat = p;
267
268 p += strlen(p) + 1;
269 successes += test(pat, p, expected);
270 p += strlen(p) + 1;
271 n++;
272 }
273
274 n -= successes;
275 printk(message, successes, n);
276
277 /* What's the errno for "kernel bug detected"? Guess... */
278 return n ? -ECANCELED : 0;
279}
280
281/* We need a dummy exit function to allow unload */
282static void __exit glob_fini(void) { }
283
284module_init(glob_init);
285module_exit(glob_fini);
286
287#endif /* CONFIG_GLOB_SELFTEST */