1 /* 2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (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 SCT parser. 13 */ 14 15 #include <stdio.h> 16 #include <openssl/ct.h> 17 #include <openssl/err.h> 18 #include "fuzzer.h" 19 20 int FuzzerInitialize(int *argc, char ***argv) 21 { 22 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); 23 CRYPTO_free_ex_index(0, -1); 24 ERR_clear_error(); 25 return 1; 26 } 27 28 int FuzzerTestOneInput(const uint8_t *buf, size_t len) 29 { 30 const uint8_t **pp = &buf; 31 unsigned char *der = NULL; 32 STACK_OF(SCT) *scts = d2i_SCT_LIST(NULL, pp, len); 33 if (scts != NULL) { 34 BIO *bio = BIO_new(BIO_s_null()); 35 SCT_LIST_print(scts, bio, 4, "\n", NULL); 36 BIO_free(bio); 37 38 if (i2d_SCT_LIST(scts, &der)) { 39 /* Silence unused result warning */ 40 } 41 OPENSSL_free(der); 42 43 SCT_LIST_free(scts); 44 } 45 ERR_clear_error(); 46 return 0; 47 } 48 49 void FuzzerCleanup(void) 50 { 51 } 52