fuzz/cms.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL licenses, (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_get_state();
  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 }