1 /*
2 * Copyright 2016-2021 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 #include <openssl/x509.h>
12 #include <openssl/bio.h>
13 #include <openssl/err.h>
14 #include <openssl/rand.h>
15 #include "fuzzer.h"
16
FuzzerInitialize(int * argc,char *** argv)17 int FuzzerInitialize(int *argc, char ***argv)
18 {
19 FuzzerSetRand();
20 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
21 ERR_clear_error();
22 CRYPTO_free_ex_index(0, -1);
23 return 1;
24 }
25
FuzzerTestOneInput(const uint8_t * buf,size_t len)26 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
27 {
28 const unsigned char *p = buf;
29 unsigned char *der = NULL;
30
31 X509 *x509 = d2i_X509(NULL, &p, len);
32 if (x509 != NULL) {
33 BIO *bio = BIO_new(BIO_s_null());
34 /* This will load and print the public key as well as extensions */
35 X509_print(bio, x509);
36 BIO_free(bio);
37
38 X509_issuer_and_serial_hash(x509);
39
40 i2d_X509(x509, &der);
41 OPENSSL_free(der);
42
43 X509_free(x509);
44 }
45 ERR_clear_error();
46 return 0;
47 }
48
FuzzerCleanup(void)49 void FuzzerCleanup(void)
50 {
51 FuzzerClearRand();
52 }
53