/* tinyproxy - A fast light-weight HTTP proxy
 * Copyright (C) 1998 Steven Young <sdyoung@miranda.org>
 * Copyright (C) 1999, 2004 Robert James Kaes <rjkaes@users.sourceforge.net>
 *
 * 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

/* See 'sock.c' for detailed information. */

#ifndef TINYPROXY_SOCK_H
#define TINYPROXY_SOCK_H

/* The IP length is set to 48, since IPv6 can be that long */
#define IP_LENGTH		48
#define HOSTNAME_LENGTH		1024

#define MAXLINE (1024 * 4)

#include "common.h"
#include "sblist.h"

#define SOCKADDR_UNION_AF(PTR) (PTR)->v4.sin_family

#define SOCKADDR_UNION_LENGTH(PTR) ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET  ) ? sizeof((PTR)->v4) : ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET6 ) ? sizeof((PTR)->v6) : 0 ) )

#define SOCKADDR_UNION_ADDRESS(PTR) ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET  ) ? (void*) &(PTR)->v4.sin_addr  : ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET6 ) ? (void*) &(PTR)->v6.sin6_addr : (void*) 0 ) )

#define SOCKADDR_UNION_PORT(PTR) ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET  ) ? (PTR)->v4.sin_port  : ( \
	( SOCKADDR_UNION_AF(PTR) == AF_INET6 ) ? (PTR)->v6.sin6_port : 0 ) )

union sockaddr_union {
        struct sockaddr_in  v4;
        struct sockaddr_in6 v6;
};

extern int init_sock(void);
extern void cleanup_dock(void);

extern int opensock (const char *host, int port, const char *bind_to, const char *bind_to_alt);
extern int listen_sock (const char *addr, uint16_t port, sblist* listen_fds);

extern int socket_nonblocking (int sock);
extern int socket_blocking (int sock);

extern int getsock_ip (int fd, char *ipaddr);
extern int getmapped_ipv6 (const char *ipv4mapped_conf, const char *ipaddr, char *ipaddr_mapped);
extern int getmapped_ipv4 (const char *ipv6mapped_conf, const char *ipaddr, char *ipaddr_mapped);
extern void getpeer_information (union sockaddr_union *addr, char *ipaddr, size_t ipaddr_len);

#endif