Files
wget2/fuzz/libwget_hpkp_fuzzer.c
2021-01-22 21:58:38 +01:00

68 lines
1.8 KiB
C

/*
* Copyright (c) 2017-2021 Free Software Foundation, Inc.
*
* This file is part of libwget.
*
* Libwget is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Libwget is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libwget. If not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "wget.h"
#include "fuzzer.h"
static const uint8_t *g_data;
static size_t g_size;
#if defined HAVE_DLFCN_H && defined HAVE_FMEMOPEN
#include <dlfcn.h>
#ifdef RTLD_NEXT /* Not defined e.g. on CygWin */
FILE *fopen(const char *pathname, const char *mode)
{
FILE *(*libc_fopen)(const char *, const char *) =
(FILE *(*)(const char *, const char *)) dlsym (RTLD_NEXT, "fopen");
if (!strcmp(pathname, "hpkp"))
return fmemopen((void *) g_data, g_size, mode);
return libc_fopen(pathname, mode);
}
#endif
#endif
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
{
if (size > 256) // same as max_len = 256 in .options file
return 0;
g_data = data;
g_size = size;
#if ! defined _WIN32 && defined HAVE_FMEMOPEN
wget_hpkp_db *hpkp_db = wget_hpkp_db_init(NULL, "hpkp");
wget_hpkp_db_load(hpkp_db);
#else
wget_hpkp_db *hpkp_db = wget_hpkp_db_init(NULL, NULL);
#endif
wget_hpkp_db_check_pubkey(hpkp_db, "x.y", "0", 1);
wget_hpkp_db_free(&hpkp_db);
return 0;
}