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/*
* Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.openssl.org/source/license.html
* or in the file LICENSE in the source distribution.
*/
/*
* Given a list of files, run each of them through the fuzzer. Note that
* failure will be indicated by some kind of crash. Switching on things like
* asan improves the test.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <openssl/crypto.h>
#include "fuzzer.h"
#include "internal/o_dir.h"
#if defined(_WIN32) && defined(_MAX_PATH) && !defined(PATH_MAX)
# define PATH_MAX _MAX_PATH
#endif
#ifndef PATH_MAX
# define PATH_MAX 4096
#endif
# if !defined(S_ISREG)
# define S_ISREG(m) ((m) & S_IFREG)
# endif
static void testfile(const char *pathname)
{
struct stat st;
FILE *f;
unsigned char *buf;
size_t s;
if (stat(pathname, &st) < 0 || !S_ISREG(st.st_mode))
return;
printf("# %s\n", pathname);
fflush(stdout);
f = fopen(pathname, "rb");
if (f == NULL)
return;
buf = malloc(st.st_size);
if (buf != NULL) {
s = fread(buf, 1, st.st_size, f);
OPENSSL_assert(s == (size_t)st.st_size);
FuzzerTestOneInput(buf, s);
free(buf);
}
fclose(f);
}
int main(int argc, char **argv) {
int n;
FuzzerInitialize(&argc, &argv);
for (n = 1; n < argc; ++n) {
size_t dirname_len = strlen(argv[n]);
const char *filename = NULL;
char *pathname = NULL;
OPENSSL_DIR_CTX *ctx = NULL;
int wasdir = 0;
/*
* We start with trying to read the given path as a directory.
*/
while ((filename = OPENSSL_DIR_read(&ctx, argv[n])) != NULL) {
wasdir = 1;
if (pathname == NULL) {
pathname = malloc(PATH_MAX);
if (pathname == NULL)
break;
strcpy(pathname, argv[n]);
#ifdef __VMS
if (strchr(":<]", pathname[dirname_len - 1]) == NULL)
#endif
pathname[dirname_len++] = '/';
pathname[dirname_len] = '\0';
}
strcpy(pathname + dirname_len, filename);
testfile(pathname);
}
OPENSSL_DIR_end(&ctx);
/* If it wasn't a directory, treat it as a file instead */
if (!wasdir)
testfile(argv[n]);
free(pathname);
}
FuzzerCleanup();
return 0;
}
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