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      1 /*
      2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License 2.0 (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 /*
     12  * Fuzz the SCT parser.
     13  */
     14 
     15 #include <stdio.h>
     16 #include <openssl/ct.h>
     17 #include <openssl/err.h>
     18 #include "fuzzer.h"
     19 
     20 int FuzzerInitialize(int *argc, char ***argv)
     21 {
     22     OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
     23     CRYPTO_free_ex_index(0, -1);
     24     ERR_clear_error();
     25     return 1;
     26 }
     27 
     28 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
     29 {
     30     const uint8_t **pp = &buf;
     31     unsigned char *der = NULL;
     32     STACK_OF(SCT) *scts = d2i_SCT_LIST(NULL, pp, len);
     33     if (scts != NULL) {
     34         BIO *bio = BIO_new(BIO_s_null());
     35         SCT_LIST_print(scts, bio, 4, "\n", NULL);
     36         BIO_free(bio);
     37 
     38         if (i2d_SCT_LIST(scts, &der)) {
     39             /* Silence unused result warning */
     40         }
     41         OPENSSL_free(der);
     42 
     43         SCT_LIST_free(scts);
     44     }
     45     ERR_clear_error();
     46     return 0;
     47 }
     48 
     49 void FuzzerCleanup(void)
     50 {
     51 }
     52