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/*
* This file is part of libwebsock
*
* Copyright (C) 2012 Payden Sutherland
*
* libwebsock 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; version 3 of the License.
*
* libwebsock 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 libwebsock; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
//this bit hides differences between systems on big-endian conversions
#if defined(__linux__)
# include <endian.h>
#elif defined(__FreeBSD__) || defined(__NetBSD__)
# include <sys/endian.h>
#elif defined(__OpenBSD__)
# include <sys/types.h>
# define be16toh(x) betoh16(x)
# define be32toh(x) betoh32(x)
# define be64toh(x) betoh64(x)
#elif defined(_WIN32)
# define be16toh(x) lws_be16toh(x)
# define be64toh(x) lws_be16toh(x)
# define htobe16(x) lws_htobe16(x)
# define htobe64(x) lws_htobe64(x)
#endif
#ifdef _WIN32
#include <ws2tcpip.h>
#endif
#include <stdint.h>
#include <event2/event.h>
#include <event2/buffer.h>
#include <event2/bufferevent.h>
#include <wchar.h>
#include <errno.h>
#ifdef WEBSOCK_HAVE_SSL
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <event2/bufferevent_ssl.h>
#endif
#include "types.h"
#include "api.h"
#include "frames.h"
#include "default_callbacks.h"
#include "utf.h"
#include "util.h"
#define PORT_STRLEN 12
#define LISTEN_BACKLOG 10
#define FRAME_CHUNK_LENGTH 1024
#define MASK_LENGTH 4
#define WS_FRAGMENT_FIN (1 << 7)
#define WS_OPCODE_CONTINUE 0x0
#define WS_OPCODE_TEXT 0x1
#define WS_OPCODE_BINARY 0x2
#define WS_OPCODE_CLOSE 0x8
#define WS_OPCODE_PING 0x9
#define WS_OPCODE_PONG 0xa
#define WS_CLOSE_NORMAL 1000
#define WS_CLOSE_GOING_AWAY 1001
#define WS_CLOSE_PROTOCOL_ERROR 1002
#define WS_CLOSE_NOT_ALLOWED 1003
#define WS_CLOSE_RESERVED 1004
#define WS_CLOSE_NO_CODE 1005
#define WS_CLOSE_DIRTY 1006
#define WS_CLOSE_WRONG_TYPE 1007
#define WS_CLOSE_POLICY_VIOLATION 1008
#define WS_CLOSE_MESSAGE_TOO_BIG 1009
#define WS_CLOSE_UNEXPECTED_ERROR 1011
#define STATE_SHOULD_CLOSE (1 << 0)
#define STATE_SENT_CLOSE_FRAME (1 << 1)
#define STATE_CONNECTING (1 << 2)
#define STATE_IS_SSL (1 << 3)
#define STATE_CONNECTED (1 << 4)
#define STATE_SENDING_FRAGMENT (1 << 5)
#define STATE_RECEIVING_FRAGMENT (1 << 6)
//function defs
int libwebsock_send_fragment(libwebsock_client_state *state, const char *data, unsigned long long len, int flags);
void libwebsock_send_cleanup(const void *data, size_t len, void *arg);
void libwebsock_shutdown(libwebsock_client_state *state);
void libwebsock_populate_close_info_from_frame(libwebsock_close_info **info, libwebsock_frame *close_frame);
void libwebsock_fail_connection(libwebsock_client_state *state, unsigned short close_code);
void libwebsock_cleanup_context(libwebsock_context *ctx);
void libwebsock_handle_signal(evutil_socket_t sig, short event, void *ptr);
void libwebsock_handle_control_frame(libwebsock_client_state *state, libwebsock_frame *ctl_frame);
void libwebsock_dispatch_message(libwebsock_client_state *state, libwebsock_frame *current);
void libwebsock_handle_accept(evutil_socket_t listener, short event, void *arg);
void libwebsock_handle_send(struct bufferevent *bev, void *ptr);
void libwebsock_handle_recv(struct bufferevent *bev, void *ptr);
void libwebsock_handle_client_event(libwebsock_context *ctx, libwebsock_client_state *state);
void libwebsock_do_read(struct bufferevent *bev, void *ptr);
void libwebsock_do_event(struct bufferevent *bev, short event, void *ptr);
void libwebsock_handshake_finish(struct bufferevent *bev, libwebsock_client_state *state);
void libwebsock_handshake(struct bufferevent *bev, void *ptr);
void libwebsock_fragmented_add(libwebsock_fragmented *frag, char *buf, unsigned int len);
void libwebsock_fragmented_finish(libwebsock_fragmented *frag);
libwebsock_fragmented *libwebsock_fragmented_new(libwebsock_client_state *state);
#ifdef WEBSOCK_HAVE_SSL
void libwebsock_handle_accept_ssl(evutil_socket_t listener, short event, void *arg);
#endif
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