#include "llhttp.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int handle_on_message_complete(llhttp_t *arg) { return 0; }

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

  llhttp_t parser;

  llhttp_settings_t settings;

  llhttp_type_t http_type;

  /* We need four bytes to determine variable parameters */

  if (size < 4) {

    return 0;

  }

  int headers = (data[0] & 0x01) == 1;

  int chunked_length = (data[1] & 0x01) == 1;

  int keep_alive = (data[2] & 0x01) == 1;

  if (data[0] % 3 == 0) {

    http_type = HTTP_BOTH;

  } else if (data[0] % 3 == 1) {

    http_type = HTTP_REQUEST;

  } else {

    http_type = HTTP_RESPONSE;

  }

  data += 4;

  size -= 4;

  /* Initialize user callbacks and settings */

  llhttp_settings_init(&settings);

  /* Set user callback */

  settings.on_message_complete = handle_on_message_complete;

  llhttp_init(&parser, http_type, &settings);

  llhttp_set_lenient_headers(&parser, headers);

  llhttp_set_lenient_chunked_length(&parser, chunked_length);

  llhttp_set_lenient_keep_alive(&parser, keep_alive);

  llhttp_execute(&parser, data, size);

  return 0;

}