/*
 * Copyright 2010 Nathan Phillip Brink
 *
 * This file is a part of DistRen.
 *
 * DistRen is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * DistRen 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with DistRen.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "common/config.h"

#include "common/protocol.h"

#include <stdlib.h>
#include <string.h>

int distren_request_free_with_data(struct distren_request *req, void *data)
{
  free(data);
  return distren_request_free(req);
}

int distren_request_version(struct distren_request **req, void **data, uint32_t servertype, const char *package_string)
{
  struct distren_request_version *version;

  distren_request_new(req, sizeof(struct distren_request_version), DISTREN_REQUEST_VERSION);
  version = malloc(sizeof(struct distren_request_version));
  if(!version || !*req)
    {
      free(version);
      if(*req)
	distren_request_free(*req);
      return 1;
    }

  memset(version, 0, sizeof(struct distren_request_version));
  version->servertype = servertype;
  strncpy(version->package_string, package_string, DISTREN_REQUEST_VERSION_PACKAGE_STRING_LEN);

  *data = version;

  return 0;
}

int distren_request_parse_version(struct distren_request *req, void *data, struct distren_request_version *version)
{
  if(req->len < sizeof(struct distren_request_version))
    return 1;

  memcpy(version, data, sizeof(struct distren_request_version));
  /* there is space for another '\0' */
  version->package_string[DISTREN_REQUEST_VERSION_PACKAGE_STRING_LEN] = '\0';

  return 0;
}

int distren_request_poing(struct distren_request **req, void **data, short is_ping, const void *poing_cookie, size_t poing_data_len)
{
  enum distren_request_type type;

  if(is_ping)
    type = DISTREN_REQUEST_PING;
  else
    type = DISTREN_REQUEST_PONG;
  distren_request_new(req, poing_data_len, type);
  (*data) = malloc(poing_data_len);
  memcpy(*data, poing_cookie, poing_data_len);

  return 0;
}