1 /* Copyright (c) 2022, 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/bio.h>
16 #include <openssl/conf.h>
17 #include <openssl/x509.h>
18 #include <openssl/x509v3.h>
19
LLVMFuzzerTestOneInput(const uint8_t * buf,size_t len)20 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
21 bssl::UniquePtr<BIO> bio(BIO_new_mem_buf(buf, len));
22 bssl::UniquePtr<CONF> conf(NCONF_new(nullptr));
23 if (NCONF_load_bio(conf.get(), bio.get(), nullptr)) {
24 // Run with and without |X509V3_CTX| information.
25 bssl::UniquePtr<X509> cert(X509_new());
26 X509V3_CTX ctx;
27 X509V3_set_ctx(&ctx, /*subject=*/cert.get(), /*issuer=*/cert.get(), nullptr,
28 nullptr, 0);
29 X509V3_EXT_add_nconf(conf.get(), &ctx, "default", cert.get());
30
31 cert.reset(X509_new());
32 X509V3_EXT_add_nconf(conf.get(), nullptr, "default", cert.get());
33 }
34 return 0;
35 }
36