// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil -*- (for GNU Emacs)
//
// $Id: sock.h,v 1.2 2003/05/14 16:33:10 dev Exp $

#ifndef _sock_h_
#define _sock_h_

/*--- some declarations from winsock.h ---*/

/*
* Basic system type definitions, taken from the BSD file sys/types.h.
*/
typedef unsigned char   u_char;
typedef unsigned short  u_short;
typedef unsigned int    u_int;
typedef unsigned long   u_long;

// some socket functions

u_long		ntohl(u_long netlong);
u_short		ntohs(u_short netshort);

u_long		htonl(u_long netlong);
u_short		htons(u_short netshort);

/*
* Protocols
*/
#define IPPROTO_IP              0               /* dummy for IP */
#define IPPROTO_ICMP            1               /* control message protocol */
#define IPPROTO_TCP             6               /* tcp */
#define IPPROTO_UDP             17              /* user datagram protocol */

/*
* Structure used by kernel to store most
* addresses.
*/
struct sockaddr
{
	u_short sa_family;              /* address family */
	char    sa_data[14];            /* up to 14 bytes of direct address */
};

/*
* Internet address (old style... should be updated)
*/
struct in_addr
{
	union	{
		struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
		struct { u_short s_w1,s_w2; } S_un_w;
		u_long S_addr;
		} S_un;
#define s_addr  S_un.S_addr
	/* can be used for most tcp & ip code */
#define s_host  S_un.S_un_b.s_b2
	/* host on imp */
#define s_net   S_un.S_un_b.s_b1
	/* network */
#define s_imp   S_un.S_un_w.s_w2
	/* imp */
#define s_impno S_un.S_un_b.s_b4
	/* imp # */
#define s_lh    S_un.S_un_b.s_b3
	/* logical host */
};

/*
* Socket address, internet style.
*/
struct sockaddr_in
{
	short   sin_family;
	u_short sin_port;
	struct  in_addr sin_addr;
	char    sin_zero[8];
};

/*
* Address families.
*/
#define AF_INET         2               /* internetwork: UDP, TCP, etc. */

#define INADDR_ANY              (u_long)0x00000000
#define INADDR_LOOPBACK         0x7f000001
#define INADDR_BROADCAST        (u_long)0xffffffff
#define INADDR_NONE             0xffffffff

#endif