/*

 * ProFTPD - FTP server fuzzing testsuite

 * Copyright (c) 2021-2026 The ProFTPD Project team

 *

 * 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 2 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/>.

 *

 * As a special exemption, The ProFTPD Project team and other respective

 * copyright holders give permission to link this program with OpenSSL, and

 * distribute the resulting executable, without including the source code for

 * OpenSSL in the source distribution.

 */

#include <stdint.h>

#include <string.h>

#include <stdlib.h>

#include "json.h"

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

  pool *p = NULL;

  char *text = NULL;

  const char *large_text, *malformed_text, *nested_text;

  pr_json_object_t *json = NULL;

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

  if (text == NULL) {

    return 0;

  }

  memcpy(text, data, size);

  text[size] = '\0';

  p = make_sub_pool(NULL);

  if (p == NULL) {

    free(text);

    return 0;

  }

  init_json();

  json = pr_json_object_from_text(p, text);

  pr_json_object_free(json);

  malformed_text = "{\"key\": \"value\",}";

  json = pr_json_object_from_text(p, malformed_text);

  pr_json_object_free(json);

  large_text = "{\"key\": \"value\", \"key2\": \"value2\", \"key3\": \"value3\", \"key4\": \"value4\"}";

  json = pr_json_object_from_text(p, large_text);

  pr_json_object_free(json);

  nested_text = "{\"key\": {\"subkey\": {\"subsubkey\": {\"subsubsubkey\": \"value\"}}}}";

  json = pr_json_object_from_text(p, nested_text);

  pr_json_object_free(json);

  /* Provide deliberately invalid UTF-8 sequences as input now. */

  malformed_text = "{\"key\": \"\x80\x81\x82\"}";

  json = pr_json_object_from_text(p, malformed_text);

  pr_json_object_free(json);

  finish_json();

  destroy_pool(p);

  free(text);

  return 0;

}