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/*
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
*/
#include "fuzz.h"
#include "fuzz_helpers.h"
#include "util.h"
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char const **argv) {
size_t const kMaxFileSize = (size_t)1 << 27;
int const kFollowLinks = 1;
char *fileNamesBuf = NULL;
char const **files = argv + 1;
unsigned numFiles = argc - 1;
uint8_t *buffer = NULL;
size_t bufferSize = 0;
unsigned i;
int ret;
#ifdef UTIL_HAS_CREATEFILELIST
files = UTIL_createFileList(files, numFiles, &fileNamesBuf, &numFiles,
kFollowLinks);
if (!files)
numFiles = 0;
#endif
if (numFiles == 0)
fprintf(stderr, "WARNING: No files passed to %s\n", argv[0]);
for (i = 0; i < numFiles; ++i) {
char const *fileName = files[i];
size_t const fileSize = UTIL_getFileSize(fileName);
size_t readSize;
FILE *file;
/* Check that it is a regular file, and that the fileSize is valid */
FUZZ_ASSERT_MSG(UTIL_isRegularFile(fileName), fileName);
FUZZ_ASSERT_MSG(fileSize <= kMaxFileSize, fileName);
/* Ensure we have a large enough buffer allocated */
if (fileSize > bufferSize) {
free(buffer);
buffer = (uint8_t *)malloc(fileSize);
FUZZ_ASSERT_MSG(buffer, fileName);
bufferSize = fileSize;
}
/* Open the file */
file = fopen(fileName, "rb");
FUZZ_ASSERT_MSG(file, fileName);
/* Read the file */
readSize = fread(buffer, 1, fileSize, file);
FUZZ_ASSERT_MSG(readSize == fileSize, fileName);
/* Close the file */
fclose(file);
/* Run the fuzz target */
LLVMFuzzerTestOneInput(buffer, fileSize);
}
ret = 0;
free(buffer);
#ifdef UTIL_HAS_CREATEFILELIST
UTIL_freeFileList(files, fileNamesBuf);
#endif
return ret;
}
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