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https://gitlab.gnome.org/GNOME/libxml2.git
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9086988ffa
Remove the libfuzzer max_len option which doesn't apply to other fuzzing engines. Enforce the maximum length directly in the fuzz targets. For the xml target, lower the maximum when expanding entities to avoid timeout and OOM errors.
47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
/*
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* regexp.c: a libFuzzer target to test the regexp module.
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*
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* See Copyright for the status of this software.
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*/
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#include <libxml/xmlregexp.h>
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#include "fuzz.h"
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int
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LLVMFuzzerInitialize(int *argc ATTRIBUTE_UNUSED,
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char ***argv ATTRIBUTE_UNUSED) {
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xmlSetGenericErrorFunc(NULL, xmlFuzzErrorFunc);
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return 0;
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}
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int
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LLVMFuzzerTestOneInput(const char *data, size_t size) {
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xmlRegexpPtr regexp;
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char *str[2] = { NULL, NULL };
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size_t numStrings;
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if (size > 200)
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return(0);
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numStrings = xmlFuzzExtractStrings(data, size, str, 2);
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/* CUR_SCHAR doesn't handle invalid UTF-8 and may cause infinite loops. */
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if (xmlCheckUTF8(BAD_CAST str[0]) != 0) {
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regexp = xmlRegexpCompile(BAD_CAST str[0]);
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/* xmlRegexpExec has pathological performance in too many cases. */
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#if 0
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if ((regexp != NULL) && (numStrings >= 2)) {
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xmlRegexpExec(regexp, BAD_CAST str[1]);
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}
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#endif
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xmlRegFreeRegexp(regexp);
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}
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xmlFree(str[0]);
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xmlFree(str[1]);
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return 0;
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}
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