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/*
* uri.c: a libFuzzer target to test the URI module.
*
* See Copyright for the status of this software.
*/
#include <libxml/uri.h>
#include "fuzz.h"
int
LLVMFuzzerInitialize(int *argc ATTRIBUTE_UNUSED,
char ***argv ATTRIBUTE_UNUSED) {
xmlFuzzMemSetup();
return 0;
}
int
LLVMFuzzerTestOneInput(const char *data, size_t size) {
xmlURIPtr uri;
size_t failurePos;
const char *str1, *str2;
char *copy;
xmlChar *strRes;
int intRes;
if (size > 10000)
return(0);
xmlFuzzDataInit(data, size);
failurePos = xmlFuzzReadInt(4) % (size * 8 + 100);
str1 = xmlFuzzReadString(NULL);
str2 = xmlFuzzReadString(NULL);
xmlFuzzInjectFailure(failurePos);
xmlFuzzResetFailure();
intRes = xmlParseURISafe(str1, &uri);
xmlFuzzCheckFailureReport("xmlParseURISafe", intRes == -1, 0);
if (uri != NULL) {
xmlFuzzResetFailure();
strRes = xmlSaveUri(uri);
xmlFuzzCheckFailureReport("xmlSaveURI", strRes == NULL, 0);
xmlFree(strRes);
xmlFreeURI(uri);
}
xmlFreeURI(xmlParseURI(str1));
uri = xmlParseURIRaw(str1, 1);
xmlFree(xmlSaveUri(uri));
xmlFreeURI(uri);
xmlFuzzResetFailure();
strRes = BAD_CAST xmlURIUnescapeString(str1, -1, NULL);
xmlFuzzCheckFailureReport("xmlURIUnescapeString",
str1 != NULL && strRes == NULL, 0);
xmlFree(strRes);
xmlFree(xmlURIEscape(BAD_CAST str1));
xmlFuzzResetFailure();
strRes = xmlCanonicPath(BAD_CAST str1);
xmlFuzzCheckFailureReport("xmlCanonicPath",
str1 != NULL && strRes == NULL, 0);
xmlFree(strRes);
xmlFuzzResetFailure();
strRes = xmlPathToURI(BAD_CAST str1);
xmlFuzzCheckFailureReport("xmlPathToURI",
str1 != NULL && strRes == NULL, 0);
xmlFree(strRes);
xmlFuzzResetFailure();
intRes = xmlBuildURISafe(BAD_CAST str2, BAD_CAST str1, &strRes);
xmlFuzzCheckFailureReport("xmlBuildURISafe", intRes == -1, 0);
xmlFree(strRes);
xmlFree(xmlBuildURI(BAD_CAST str2, BAD_CAST str1));
xmlFuzzResetFailure();
intRes = xmlBuildRelativeURISafe(BAD_CAST str2, BAD_CAST str1, &strRes);
xmlFuzzCheckFailureReport("xmlBuildRelativeURISafe", intRes == -1, 0);
xmlFree(strRes);
xmlFree(xmlBuildRelativeURI(BAD_CAST str2, BAD_CAST str1));
xmlFuzzResetFailure();
strRes = xmlURIEscapeStr(BAD_CAST str1, BAD_CAST str2);
xmlFuzzCheckFailureReport("xmlURIEscapeStr",
str1 != NULL && strRes == NULL, 0);
xmlFree(strRes);
copy = (char *) xmlCharStrdup(str1);
xmlNormalizeURIPath(copy);
xmlFree(copy);
xmlFuzzInjectFailure(0);
xmlFuzzDataCleanup();
return 0;
}
size_t
LLVMFuzzerCustomMutator(char *data, size_t size, size_t maxSize,
unsigned seed) {
static const xmlFuzzChunkDesc chunks[] = {
{ 4, XML_FUZZ_PROB_ONE / 10 }, /* failurePos */
{ 0, 0 }
};
return xmlFuzzMutateChunks(chunks, data, size, maxSize, seed,
LLVMFuzzerMutate);
}
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