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/*
* xpath.c: a libFuzzer target to test XPath and XPointer expressions.
*
* See Copyright for the status of this software.
*/
#include <libxml/parser.h>
#include <libxml/xpointer.h>
#include "fuzz.h"
int
LLVMFuzzerInitialize(int *argc ATTRIBUTE_UNUSED,
char ***argv ATTRIBUTE_UNUSED) {
xmlInitParser();
xmlSetGenericErrorFunc(NULL, xmlFuzzErrorFunc);
return 0;
}
int
LLVMFuzzerTestOneInput(const char *data, size_t size) {
xmlDocPtr doc;
const char *expr, *xml;
size_t exprSize, xmlSize;
if (size > 10000)
return(0);
xmlFuzzDataInit(data, size);
expr = xmlFuzzReadString(&exprSize);
xml = xmlFuzzReadString(&xmlSize);
/* Recovery mode allows more input to be fuzzed. */
doc = xmlReadMemory(xml, xmlSize, NULL, NULL, XML_PARSE_RECOVER);
if (doc != NULL) {
xmlXPathContextPtr xpctxt = xmlXPathNewContext(doc);
/* Operation limit to avoid timeout */
xpctxt->opLimit = 500000;
xmlXPathFreeObject(xmlXPtrEval(BAD_CAST expr, xpctxt));
xmlXPathFreeContext(xpctxt);
}
xmlFreeDoc(doc);
xmlFuzzDataCleanup();
xmlResetLastError();
return(0);
}
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