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/*
* testFuzzer.c: Test program for the custom entity loader used to fuzz
* with multiple inputs.
*
* See Copyright for the status of this software.
*/
#include <string.h>
#include <glob.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <libxml/xmlstring.h>
#include "fuzz.h"
#ifdef HAVE_HTML_FUZZER
int fuzzHtmlInit(int *argc, char ***argv);
int fuzzHtml(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzHtmlInit
#define LLVMFuzzerTestOneInput fuzzHtml
#include "html.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_REGEXP_FUZZER
int fuzzRegexpInit(int *argc, char ***argv);
int fuzzRegexp(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzRegexpInit
#define LLVMFuzzerTestOneInput fuzzRegexp
#include "regexp.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_SCHEMA_FUZZER
int fuzzSchemaInit(int *argc, char ***argv);
int fuzzSchema(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzSchemaInit
#define LLVMFuzzerTestOneInput fuzzSchema
#include "schema.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_URI_FUZZER
int fuzzUriInit(int *argc, char ***argv);
int fuzzUri(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzUriInit
#define LLVMFuzzerTestOneInput fuzzUri
#include "uri.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_VALID_FUZZER
int fuzzValidInit(int *argc, char ***argv);
int fuzzValid(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzValidInit
#define LLVMFuzzerTestOneInput fuzzValid
#include "valid.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_XINCLUDE_FUZZER
int fuzzXIncludeInit(int *argc, char ***argv);
int fuzzXInclude(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzXIncludeInit
#define LLVMFuzzerTestOneInput fuzzXInclude
#include "xinclude.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_XML_FUZZER
int fuzzXmlInit(int *argc, char ***argv);
int fuzzXml(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzXmlInit
#define LLVMFuzzerTestOneInput fuzzXml
#include "xml.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
#ifdef HAVE_XPATH_FUZZER
int fuzzXPathInit(int *argc, char ***argv);
int fuzzXPath(const char *data, size_t size);
#define LLVMFuzzerInitialize fuzzXPathInit
#define LLVMFuzzerTestOneInput fuzzXPath
#include "xpath.c"
#undef LLVMFuzzerInitialize
#undef LLVMFuzzerTestOneInput
#endif
typedef int
(*initFunc)(int *argc, char ***argv);
typedef int
(*fuzzFunc)(const char *data, size_t size);
int numInputs;
static int
testFuzzer(initFunc init, fuzzFunc fuzz, const char *pattern) {
glob_t globbuf;
int ret = -1;
size_t i;
if (glob(pattern, 0, NULL, &globbuf) != 0) {
fprintf(stderr, "pattern %s matches no files\n", pattern);
return(-1);
}
if (init != NULL)
init(NULL, NULL);
for (i = 0; i < globbuf.gl_pathc; i++) {
const char *path = globbuf.gl_pathv[i];
char *data;
size_t size;
data = xmlSlurpFile(path, &size);
if (data == NULL) {
fprintf(stderr, "couldn't read %s\n", path);
goto error;
}
fuzz(data, size);
xmlFree(data);
numInputs++;
}
ret = 0;
error:
globfree(&globbuf);
return(ret);
}
#ifdef HAVE_XML_FUZZER
static int
testEntityLoader(void) {
static const char data[] =
"doc.xml\\\n"
"<!DOCTYPE doc SYSTEM \"doc.dtd\">\n"
"<doc>&ent;</doc>\\\n"
"doc.dtd\\\n"
"<!ELEMENT doc (#PCDATA)>\n"
"<!ENTITY ent SYSTEM \"ent.txt\">\\\n"
"ent.txt\\\n"
"Hello, world!\\\n";
static xmlChar expected[] =
"<?xml version=\"1.0\"?>\n"
"<!DOCTYPE doc SYSTEM \"doc.dtd\">\n"
"<doc>Hello, world!</doc>\n";
const char *docBuffer;
size_t docSize;
xmlDocPtr doc;
xmlChar *out;
int ret = 0;
xmlSetExternalEntityLoader(xmlFuzzEntityLoader);
xmlFuzzDataInit(data, sizeof(data) - 1);
xmlFuzzReadEntities();
docBuffer = xmlFuzzMainEntity(&docSize);
doc = xmlReadMemory(docBuffer, docSize, NULL, NULL,
XML_PARSE_NOENT | XML_PARSE_DTDLOAD);
xmlDocDumpMemory(doc, &out, NULL);
if (xmlStrcmp(out, expected) != 0) {
fprintf(stderr, "Expected:\n%sGot:\n%s", expected, out);
ret = 1;
}
xmlFree(out);
xmlFreeDoc(doc);
xmlFuzzDataCleanup();
return(ret);
}
#endif
int
main(void) {
int ret = 0;
#ifdef HAVE_XML_FUZZER
if (testEntityLoader() != 0)
ret = 1;
#endif
#ifdef HAVE_HTML_FUZZER
if (testFuzzer(fuzzHtmlInit, fuzzHtml, "seed/html/*") != 0)
ret = 1;
#endif
#ifdef HAVE_REGEXP_FUZZER
if (testFuzzer(fuzzRegexpInit, fuzzRegexp, "seed/regexp/*") != 0)
ret = 1;
#endif
#ifdef HAVE_SCHEMA_FUZZER
if (testFuzzer(fuzzSchemaInit, fuzzSchema, "seed/schema/*") != 0)
ret = 1;
#endif
#ifdef HAVE_URI_FUZZER
if (testFuzzer(fuzzUriInit, fuzzUri, "seed/uri/*") != 0)
ret = 1;
#endif
#ifdef HAVE_VALID_FUZZER
if (testFuzzer(fuzzValidInit, fuzzValid, "seed/valid/*") != 0)
ret = 1;
#endif
#ifdef HAVE_XINCLUDE_FUZZER
if (testFuzzer(fuzzXIncludeInit, fuzzXInclude, "seed/xinclude/*") != 0)
ret = 1;
#endif
#ifdef HAVE_XML_FUZZER
if (testFuzzer(fuzzXmlInit, fuzzXml, "seed/xml/*") != 0)
ret = 1;
#endif
#ifdef HAVE_XPATH_FUZZER
if (testFuzzer(fuzzXPathInit, fuzzXPath, "seed/xpath/*") != 0)
ret = 1;
#endif
if (ret == 0)
printf("Successfully tested %d inputs\n", numInputs);
return(ret);
}
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