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stringmatchlen() fuzz test added.

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Verified to be able to trigger at least #5632. Does not report other
issues.
This commit is contained in:
antirez
2018-12-11 13:29:30 +01:00
parent 7602f69530
commit 392a2566b6
3 changed files with 22 additions and 0 deletions
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16
src/util.c
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@ -171,6 +171,22 @@ int stringmatch(const char *pattern, const char *string, int nocase) {
return stringmatchlen(pattern,strlen(pattern),string,strlen(string),nocase);
}
/* Fuzz stringmatchlen() trying to crash it with bad input. */
int stringmatchlen_fuzz_test(void) {
char str[32];
char pat[32];
int cycles = 10000000;
int total_matches = 0;
while(cycles--) {
int strlen = rand() % sizeof(str);
int patlen = rand() % sizeof(pat);
for (int j = 0; j < strlen; j++) str[j] = rand() % 128;
for (int j = 0; j < patlen; j++) pat[j] = rand() % 128;
total_matches += stringmatchlen(pat, patlen, str, strlen, 0);
}
return total_matches;
}
/* Convert a string representing an amount of memory into the number of
* bytes, so for instance memtoll("1Gb") will return 1073741824 that is
* (1024*1024*1024).