1*e7be843bSPierre Pronchery /*
2*e7be843bSPierre Pronchery * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved.
3*e7be843bSPierre Pronchery *
4*e7be843bSPierre Pronchery * Licensed under the Apache License 2.0 (the "License");
5*e7be843bSPierre Pronchery * you may not use this file except in compliance with the License.
6*e7be843bSPierre Pronchery * You may obtain a copy of the License at
7*e7be843bSPierre Pronchery * https://www.openssl.org/source/license.html
8*e7be843bSPierre Pronchery * or in the file LICENSE in the source distribution.
9*e7be843bSPierre Pronchery */
10*e7be843bSPierre Pronchery
11*e7be843bSPierre Pronchery #include <openssl/pem.h>
12*e7be843bSPierre Pronchery #include <openssl/err.h>
13*e7be843bSPierre Pronchery #include "fuzzer.h"
14*e7be843bSPierre Pronchery
FuzzerInitialize(int * argc,char *** argv)15*e7be843bSPierre Pronchery int FuzzerInitialize(int *argc, char ***argv)
16*e7be843bSPierre Pronchery {
17*e7be843bSPierre Pronchery OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
18*e7be843bSPierre Pronchery ERR_clear_error();
19*e7be843bSPierre Pronchery CRYPTO_free_ex_index(0, -1);
20*e7be843bSPierre Pronchery return 1;
21*e7be843bSPierre Pronchery }
22*e7be843bSPierre Pronchery
FuzzerTestOneInput(const uint8_t * buf,size_t len)23*e7be843bSPierre Pronchery int FuzzerTestOneInput(const uint8_t *buf, size_t len)
24*e7be843bSPierre Pronchery {
25*e7be843bSPierre Pronchery BIO *in;
26*e7be843bSPierre Pronchery char *name = NULL, *header = NULL;
27*e7be843bSPierre Pronchery unsigned char *data = NULL;
28*e7be843bSPierre Pronchery long outlen;
29*e7be843bSPierre Pronchery
30*e7be843bSPierre Pronchery if (len <= 1)
31*e7be843bSPierre Pronchery return 0;
32*e7be843bSPierre Pronchery
33*e7be843bSPierre Pronchery in = BIO_new(BIO_s_mem());
34*e7be843bSPierre Pronchery OPENSSL_assert((size_t)BIO_write(in, buf + 1, len - 1) == len - 1);
35*e7be843bSPierre Pronchery if (PEM_read_bio_ex(in, &name, &header, &data, &outlen, buf[0]) == 1) {
36*e7be843bSPierre Pronchery /* Try to read all the data we get to see if allocated properly. */
37*e7be843bSPierre Pronchery BIO_write(in, name, strlen(name));
38*e7be843bSPierre Pronchery BIO_write(in, header, strlen(header));
39*e7be843bSPierre Pronchery BIO_write(in, data, outlen);
40*e7be843bSPierre Pronchery }
41*e7be843bSPierre Pronchery if (buf[0] & PEM_FLAG_SECURE) {
42*e7be843bSPierre Pronchery OPENSSL_secure_free(name);
43*e7be843bSPierre Pronchery OPENSSL_secure_free(header);
44*e7be843bSPierre Pronchery OPENSSL_secure_free(data);
45*e7be843bSPierre Pronchery } else {
46*e7be843bSPierre Pronchery OPENSSL_free(name);
47*e7be843bSPierre Pronchery OPENSSL_free(header);
48*e7be843bSPierre Pronchery OPENSSL_free(data);
49*e7be843bSPierre Pronchery }
50*e7be843bSPierre Pronchery
51*e7be843bSPierre Pronchery BIO_free(in);
52*e7be843bSPierre Pronchery ERR_clear_error();
53*e7be843bSPierre Pronchery
54*e7be843bSPierre Pronchery return 0;
55*e7be843bSPierre Pronchery }
56*e7be843bSPierre Pronchery
FuzzerCleanup(void)57*e7be843bSPierre Pronchery void FuzzerCleanup(void)
58*e7be843bSPierre Pronchery {
59*e7be843bSPierre Pronchery }
60