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e1859d8d KR |
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 | #include <openssl/x509.h> | |
12 | #include <openssl/bio.h> | |
d69d8f90 | 13 | #include <openssl/err.h> |
b534df96 | 14 | #include <openssl/rand.h> |
e1859d8d KR |
15 | #include "fuzzer.h" |
16 | ||
b534df96 KR |
17 | #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION |
18 | extern int rand_predictable; | |
19 | #endif | |
20 | #define ENTROPY_NEEDED 32 | |
21 | ||
f3e911d5 KR |
22 | int FuzzerInitialize(int *argc, char ***argv) |
23 | { | |
d69d8f90 KR |
24 | OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); |
25 | ERR_get_state(); | |
26 | CRYPTO_free_ex_index(0, -1); | |
b534df96 KR |
27 | RAND_add("", 1, ENTROPY_NEEDED); |
28 | RAND_status(); | |
29 | ||
30 | #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION | |
31 | rand_predictable = 1; | |
32 | #endif | |
a05b0bcf KR |
33 | return 1; |
34 | } | |
35 | ||
f3e911d5 KR |
36 | int FuzzerTestOneInput(const uint8_t *buf, size_t len) |
37 | { | |
e1859d8d KR |
38 | const unsigned char *p = buf; |
39 | unsigned char *der = NULL; | |
40 | ||
41 | X509 *x509 = d2i_X509(NULL, &p, len); | |
42 | if (x509 != NULL) { | |
43 | BIO *bio = BIO_new(BIO_s_null()); | |
03cb37ac | 44 | /* This will load and print the public key as well as extensions */ |
e1859d8d KR |
45 | X509_print(bio, x509); |
46 | BIO_free(bio); | |
47 | ||
48 | i2d_X509(x509, &der); | |
49 | OPENSSL_free(der); | |
50 | ||
51 | X509_free(x509); | |
52 | } | |
d69d8f90 | 53 | ERR_clear_error(); |
e1859d8d KR |
54 | return 0; |
55 | } | |
ad4da7fb KR |
56 | |
57 | void FuzzerCleanup(void) | |
58 | { | |
59 | } |