/*

   Fuzzing for oLschema2ldif

   Copyright (C) Michael Hanselmann 2019

   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.h"

#include "utils/oLschema2ldif/lib.h"

static FILE *devnull;

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

{

  devnull = fopen("/dev/null", "w");

  return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len)

{

  TALLOC_CTX *mem_ctx;

  struct conv_options opt;

  if (len == 0) {

    /*

     * Otherwise fmemopen() will return null and set errno

     * to EINVAL

     */

    return 0;

  }

  mem_ctx = talloc_init(__FUNCTION__);

  if (mem_ctx == NULL) {

    return 0;

  }

  opt.in = fmemopen(buf, len, "r");

  opt.out = devnull;

  opt.ldb_ctx = ldb_init(mem_ctx, NULL);

  if (opt.ldb_ctx == NULL || opt.in == NULL) {

    talloc_free(mem_ctx);

    return 0;

  }

  opt.basedn = ldb_dn_new(mem_ctx, opt.ldb_ctx, "");

  if (opt.basedn == NULL) {

    talloc_free(mem_ctx);

    return 0;

  }

  process_file(mem_ctx, &opt);

  fclose(opt.in);

  talloc_free(mem_ctx);

  return 0;

}