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/*
* tcpproxy
*
* tcpproxy is a simple tcp connection proxy which combines the
* features of rinetd and 6tunnel. tcpproxy supports IPv4 and
* IPv6 and also supports connections from IPv6 to IPv4
* endpoints and vice versa.
*
*
* Copyright (C) 2010-2011 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of tcpproxy.
*
* tcpproxy 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
* any later version.
*
* tcpproxy 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 tcpproxy. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TCPPROXY_clients_h_INCLUDED
#define TCPPROXY_clients_h_INCLUDED
#include <sys/select.h>
#include "slist.h"
#include "tcp.h"
#define BUFFER_LENGTH 10240
enum client_state_enum { CONNECTING, CONNECTED };
typedef enum client_state_enum client_state_t;
typedef struct {
int fd_[2];
buffer_t write_buf_[2];
u_int32_t write_buf_offset_[2];
client_state_t state_;
} client_t;
void clients_delete_element(void* e);
typedef struct {
slist_t list_;
int32_t buffer_size_;
} clients_t;
int clients_init(clients_t* list, int32_t buffer_size);
void clients_clear(clients_t* list);
int clients_add(clients_t* list, int fd, const tcp_endpoint_t remote_end, const tcp_endpoint_t source_end);
void clients_remove(clients_t* list, int fd);
client_t* clients_find(clients_t* list, int fd);
void clients_print(clients_t* list);
void clients_read_fds(clients_t* list, fd_set* set, int* max_fd);
void clients_write_fds(clients_t* list, fd_set* set, int* max_fd);
int clients_read(clients_t* list, fd_set* set);
int clients_write(clients_t* list, fd_set* set);
#endif
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