fuzz/regexp.c

/*
 * regexp.c: a libFuzzer target to test the regexp module.
 *
 * See Copyright for the status of this software.
 */

#include <libxml/xmlregexp.h>
#include "fuzz.h"

int
LLVMFuzzerInitialize(int *argc ATTRIBUTE_UNUSED,
                     char ***argv ATTRIBUTE_UNUSED) {
    xmlSetGenericErrorFunc(NULL, xmlFuzzErrorFunc);

    return 0;
}

int
LLVMFuzzerTestOneInput(const char *data, size_t size) {
    xmlRegexpPtr regexp;
    char *str[2] = { NULL, NULL };
    size_t numStrings;

    numStrings = xmlFuzzExtractStrings(data, size, str, 2);

    regexp = xmlRegexpCompile(BAD_CAST str[0]);
    /* xmlRegexpExec has pathological performance in too many cases. */
#if 0
    if ((regexp != NULL) && (numStrings >= 2)) {
        xmlRegexpExec(regexp, BAD_CAST str[1]);
    }
#endif
    xmlRegFreeRegexp(regexp);

    xmlFree(str[0]);
    xmlFree(str[1]);

    return 0;
}