1 /* 2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL licenses, (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * https://www.openssl.org/source/license.html 8 * or in the file LICENSE in the source distribution. 9 */ 10 11 /* 12 * Fuzz the parser used for dumping ASN.1 using "openssl asn1parse". 13 */ 14 15 #include <stdio.h> 16 #include <openssl/asn1.h> 17 #include <openssl/x509.h> 18 #include <openssl/x509v3.h> 19 #include <openssl/err.h> 20 #include "fuzzer.h" 21 22 static BIO *bio_out; 23 24 int FuzzerInitialize(int *argc, char ***argv) 25 { 26 bio_out = BIO_new_file("/dev/null", "w"); 27 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); 28 ERR_get_state(); 29 CRYPTO_free_ex_index(0, -1); 30 return 1; 31 } 32 33 int FuzzerTestOneInput(const uint8_t *buf, size_t len) 34 { 35 (void)ASN1_parse_dump(bio_out, buf, len, 0, 0); 36 ERR_clear_error(); 37 return 0; 38 } 39 40 void FuzzerCleanup(void) 41 { 42 BIO_free(bio_out); 43 } 44