1 /* Copyright (c) 2016, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <openssl/bytestring.h>
16 #include <openssl/err.h>
17 #include <openssl/evp.h>
18 #include <openssl/mem.h>
19
LLVMFuzzerTestOneInput(const uint8_t * buf,size_t len)20 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
21 CBS cbs;
22 CBS_init(&cbs, buf, len);
23 EVP_PKEY *pkey = EVP_parse_public_key(&cbs);
24 if (pkey == NULL) {
25 ERR_clear_error();
26 return 0;
27 }
28
29 uint8_t *der;
30 size_t der_len;
31 CBB cbb;
32 if (CBB_init(&cbb, 0) &&
33 EVP_marshal_public_key(&cbb, pkey) &&
34 CBB_finish(&cbb, &der, &der_len)) {
35 OPENSSL_free(der);
36 }
37 CBB_cleanup(&cbb);
38 EVP_PKEY_free(pkey);
39 ERR_clear_error();
40 return 0;
41 }
42