}
}
EXPORT_SYMBOL(glob_match);
-
-
-#ifdef CONFIG_GLOB_SELFTEST
-
-#include <linux/printk.h>
-#include <linux/moduleparam.h>
-
-/* Boot with "glob.verbose=1" to show successful tests, too */
-static bool verbose = false;
-module_param(verbose, bool, 0);
-
-struct glob_test {
- char const *pat, *str;
- bool expected;
-};
-
-static bool __pure __init test(char const *pat, char const *str, bool expected)
-{
- bool match = glob_match(pat, str);
- bool success = match == expected;
-
- /* Can't get string literals into a particular section, so... */
- static char const msg_error[] __initconst =
- KERN_ERR "glob: \"%s\" vs. \"%s\": %s *** ERROR ***\n";
- static char const msg_ok[] __initconst =
- KERN_DEBUG "glob: \"%s\" vs. \"%s\": %s OK\n";
- static char const mismatch[] __initconst = "mismatch";
- char const *message;
-
- if (!success)
- message = msg_error;
- else if (verbose)
- message = msg_ok;
- else
- return success;
-
- printk(message, pat, str, mismatch + 3*match);
- return success;
-}
-
-/*
- * The tests are all jammed together in one array to make it simpler
- * to place that array in the .init.rodata section. The obvious
- * "array of structures containing char *" has no way to force the
- * pointed-to strings to be in a particular section.
- *
- * Anyway, a test consists of:
- * 1. Expected glob_match result: '1' or '0'.
- * 2. Pattern to match: null-terminated string
- * 3. String to match against: null-terminated string
- *
- * The list of tests is terminated with a final '\0' instead of
- * a glob_match result character.
- */
-static char const glob_tests[] __initconst =
- /* Some basic tests */
- "1" "a\0" "a\0"
- "0" "a\0" "b\0"
- "0" "a\0" "aa\0"
- "0" "a\0" "\0"
- "1" "\0" "\0"
- "0" "\0" "a\0"
- /* Simple character class tests */
- "1" "[a]\0" "a\0"
- "0" "[a]\0" "b\0"
- "0" "[!a]\0" "a\0"
- "1" "[!a]\0" "b\0"
- "1" "[ab]\0" "a\0"
- "1" "[ab]\0" "b\0"
- "0" "[ab]\0" "c\0"
- "1" "[!ab]\0" "c\0"
- "1" "[a-c]\0" "b\0"
- "0" "[a-c]\0" "d\0"
- /* Corner cases in character class parsing */
- "1" "[a-c-e-g]\0" "-\0"
- "0" "[a-c-e-g]\0" "d\0"
- "1" "[a-c-e-g]\0" "f\0"
- "1" "[]a-ceg-ik[]\0" "a\0"
- "1" "[]a-ceg-ik[]\0" "]\0"
- "1" "[]a-ceg-ik[]\0" "[\0"
- "1" "[]a-ceg-ik[]\0" "h\0"
- "0" "[]a-ceg-ik[]\0" "f\0"
- "0" "[!]a-ceg-ik[]\0" "h\0"
- "0" "[!]a-ceg-ik[]\0" "]\0"
- "1" "[!]a-ceg-ik[]\0" "f\0"
- /* Simple wild cards */
- "1" "?\0" "a\0"
- "0" "?\0" "aa\0"
- "0" "??\0" "a\0"
- "1" "?x?\0" "axb\0"
- "0" "?x?\0" "abx\0"
- "0" "?x?\0" "xab\0"
- /* Asterisk wild cards (backtracking) */
- "0" "*??\0" "a\0"
- "1" "*??\0" "ab\0"
- "1" "*??\0" "abc\0"
- "1" "*??\0" "abcd\0"
- "0" "??*\0" "a\0"
- "1" "??*\0" "ab\0"
- "1" "??*\0" "abc\0"
- "1" "??*\0" "abcd\0"
- "0" "?*?\0" "a\0"
- "1" "?*?\0" "ab\0"
- "1" "?*?\0" "abc\0"
- "1" "?*?\0" "abcd\0"
- "1" "*b\0" "b\0"
- "1" "*b\0" "ab\0"
- "0" "*b\0" "ba\0"
- "1" "*b\0" "bb\0"
- "1" "*b\0" "abb\0"
- "1" "*b\0" "bab\0"
- "1" "*bc\0" "abbc\0"
- "1" "*bc\0" "bc\0"
- "1" "*bc\0" "bbc\0"
- "1" "*bc\0" "bcbc\0"
- /* Multiple asterisks (complex backtracking) */
- "1" "*ac*\0" "abacadaeafag\0"
- "1" "*ac*ae*ag*\0" "abacadaeafag\0"
- "1" "*a*b*[bc]*[ef]*g*\0" "abacadaeafag\0"
- "0" "*a*b*[ef]*[cd]*g*\0" "abacadaeafag\0"
- "1" "*abcd*\0" "abcabcabcabcdefg\0"
- "1" "*ab*cd*\0" "abcabcabcabcdefg\0"
- "1" "*abcd*abcdef*\0" "abcabcdabcdeabcdefg\0"
- "0" "*abcd*\0" "abcabcabcabcefg\0"
- "0" "*ab*cd*\0" "abcabcabcabcefg\0";
-
-static int __init glob_init(void)
-{
- unsigned successes = 0;
- unsigned n = 0;
- char const *p = glob_tests;
- static char const message[] __initconst =
- KERN_INFO "glob: %u self-tests passed, %u failed\n";
-
- /*
- * Tests are jammed together in a string. The first byte is '1'
- * or '0' to indicate the expected outcome, or '\0' to indicate the
- * end of the tests. Then come two null-terminated strings: the
- * pattern and the string to match it against.
- */
- while (*p) {
- bool expected = *p++ & 1;
- char const *pat = p;
-
- p += strlen(p) + 1;
- successes += test(pat, p, expected);
- p += strlen(p) + 1;
- n++;
- }
-
- n -= successes;
- printk(message, successes, n);
-
- /* What's the errno for "kernel bug detected"? Guess... */
- return n ? -ECANCELED : 0;
-}
-
-/* We need a dummy exit function to allow unload */
-static void __exit glob_fini(void) { }
-
-module_init(glob_init);
-module_exit(glob_fini);
-
-#endif /* CONFIG_GLOB_SELFTEST */
projects / karo-tx-linux.git / blobdiff