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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  * Test CMS DER parsing.
     13  */
     14 
     15 #include <openssl/bio.h>
     16 #include <openssl/cms.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     ERR_clear_error();
     24     CRYPTO_free_ex_index(0, -1);
     25     return 1;
     26 }
     27 
     28 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
     29 {
     30     CMS_ContentInfo *cms;
     31     BIO *in;
     32 
     33     if (len == 0)
     34         return 0;
     35 
     36     in = BIO_new(BIO_s_mem());
     37     OPENSSL_assert((size_t)BIO_write(in, buf, len) == len);
     38     cms = d2i_CMS_bio(in, NULL);
     39     if (cms != NULL) {
     40         BIO *out = BIO_new(BIO_s_null());
     41 
     42         i2d_CMS_bio(out, cms);
     43         BIO_free(out);
     44         CMS_ContentInfo_free(cms);
     45     }
     46 
     47     BIO_free(in);
     48     ERR_clear_error();
     49 
     50     return 0;
     51 }
     52 
     53 void FuzzerCleanup(void)
     54 {
     55 }
     56