/*

   Fuzzing sess_*crypt_blob

   Copyright (C) Catalyst IT 2020

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "includes.h"

#include "fuzzing/fuzzing.h"

#include "libcli/auth/libcli_auth.h"

#include "session.h"

int LLVMFuzzerInitialize(int *argc, char ***argv)

{

  return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *input, size_t len)

{

  TALLOC_CTX *mem_ctx = NULL;

  DATA_BLOB blob, session_key, out;

  size_t slen;

  if (len < 1) {

    return 0;

  }

  slen = input[0];

  if (len < slen + 1) {

    return 0;

  }

  session_key.data = input + 1;

  session_key.length = slen;

  blob.data = input + 1 + slen;

  blob.length = len - slen - 1;

  mem_ctx = talloc_new(NULL);

  out = sess_encrypt_blob(mem_ctx, &blob, &session_key);

  sess_decrypt_blob(mem_ctx, &blob, &session_key, &out);

  TALLOC_FREE(mem_ctx);

  return 0;

}