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/err.h>
16 #include <openssl/mem.h>
17 #include <openssl/x509.h>
18
LLVMFuzzerTestOneInput(const uint8_t * buf,size_t len)19 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
20 X509 *x509 = d2i_X509(NULL, &buf, len);
21 if (x509 != NULL) {
22 // Extract the public key.
23 EVP_PKEY_free(X509_get_pubkey(x509));
24
25 // Reserialize the structure.
26 uint8_t *der = NULL;
27 i2d_X509(x509, &der);
28 OPENSSL_free(der);
29 }
30 X509_free(x509);
31 ERR_clear_error();
32 return 0;
33 }
34