/*

 * Copyright(c) 2017 Tim Ruehsen

 *

 * 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 <https://www.gnu.org/licenses/>.

 */

#include <config.h>

#include <assert.h>   /* assert */

#include <stdint.h>   /* uint8_t, uint32_t */

#include <stdlib.h>   /* malloc, free */

#include <string.h>   /* memcpy */

#include "idna.h"

#include "idn-free.h"

#include "fuzzer.h"

int

LLVMFuzzerTestOneInput (const uint8_t *data, size_t size)

{

  char *domain;

  char *out;

  if (size > 1024)

    return 0;

  domain = (char *) malloc (size + 1);

  assert (domain != NULL);

  if ((size & 3) == 0)

    {

      uint32_t *data0 = (uint32_t *) malloc (size + 4);

      char *asc = (char *) malloc (64);

      assert (data0 != NULL);

      assert (asc != NULL);

      memcpy (data0, data, size);

      idna_to_ascii_4i (data0, size / 4, asc, 0);

      idna_to_ascii_4i (data0, size / 4, asc,

      IDNA_ALLOW_UNASSIGNED | IDNA_USE_STD3_ASCII_RULES);

      free (asc);

      data0[size / 4] = 0;

      if (idna_to_ascii_4z (data0, &out, 0) == IDNA_SUCCESS)

  idn_free (out);

      if (idna_to_ascii_4z

    (data0, &out,

     IDNA_ALLOW_UNASSIGNED | IDNA_USE_STD3_ASCII_RULES) == IDNA_SUCCESS)

  idn_free (out);

      free (data0);

    }

  /* 0 terminate */

  memcpy (domain, data, size);

  domain[size] = 0;

  if (idna_to_ascii_8z (domain, &out, 0) == IDNA_SUCCESS)

    idn_free (out);

  if (idna_to_ascii_8z

      (domain, &out,

       IDNA_ALLOW_UNASSIGNED | IDNA_USE_STD3_ASCII_RULES) == IDNA_SUCCESS)

    idn_free (out);

  if (idna_to_ascii_lz (domain, &out, 0) == IDNA_SUCCESS)

    idn_free (out);

  if (idna_to_ascii_lz

      (domain, &out,

       IDNA_ALLOW_UNASSIGNED | IDNA_USE_STD3_ASCII_RULES) == IDNA_SUCCESS)

    idn_free (out);

  free (domain);

  return 0;

}