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 *
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 ****************************************************************************
 *
 * PROJECT:  Pilot TCP/IP Library
 * FILE:     netinet/in.h
 *
 * DESCRIPTION:
 *	  This module contains the interface definitions that are 
 *	typically found in the unix header <netinet/in.h> for use by 
 * Pilot applications that wish to use the sockets API calls.
 *
 **********************************************************************/
/*	@(#)in.h 1.19 90/07/27 SMI; from UCB 7.5 2/22/88	*/

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that this notice is preserved and that due credit is given
 * to the University of California at Berkeley. The name of the University
 * may not be used to endorse or promote products derived from this
 * software without specific prior written permission. This software
 * is provided ``as is'' without express or implied warranty.
 */

/*
 * Constants and structures defined by the internet system,
 * Per RFC 790, September 1981.
 */

#ifndef __UNIXIN_H__
#define __UNIXIN_H__

/*
 * Protocols
 */
#define	IPPROTO_IP			0		/* dummy for IP */
#define	IPPROTO_ICMP		1		/* control message protocol */
#define 	IPPROTO_IGMP		2		/* group control protocol */
#define	IPPROTO_GGP			3		/* gateway^2 (deprecated) */
#define	IPPROTO_TCP			6		/* tcp */
#define	IPPROTO_EGP			8		/* exterior gateway protocol */
#define	IPPROTO_PUP			12		/* pup */
#define	IPPROTO_UDP			17		/* user datagram protocol */
#define	IPPROTO_IDP			22		/* xns idp */
#define 	IPPROTO_HELLO		63		/* "hello" routing protocol */
#define	IPPROTO_ND			77		/* UNOFFICIAL net disk proto */

#define	IPPROTO_RAW			255		/* raw IP packet */
#define	IPPROTO_MAX			256

/*
 * Port/socket numbers: network standard functions
 */
#define	IPPORT_ECHO			7
#define	IPPORT_DISCARD		9
#define	IPPORT_SYSTAT		11
#define	IPPORT_DAYTIME		13
#define	IPPORT_NETSTAT		15
#define	IPPORT_FTP			21
#define	IPPORT_TELNET		23
#define	IPPORT_SMTP			25
#define	IPPORT_TIMESERVER	37
#define	IPPORT_NAMESERVER	42
#define	IPPORT_WHOIS		43
#define	IPPORT_MTP			57

/*
 * Port/socket numbers: host specific functions
 */
#define	IPPORT_TFTP			69
#define	IPPORT_RJE			77
#define	IPPORT_FINGER		79
#define	IPPORT_TTYLINK		87
#define	IPPORT_SUPDUP		95

/*
 * UNIX TCP sockets
 */
#define	IPPORT_EXECSERVER		512
#define	IPPORT_LOGINSERVER	513
#define	IPPORT_CMDSERVER		514
#define	IPPORT_EFSSERVER		520

/*
 * UNIX UDP sockets
 */
#define	IPPORT_BIFFUDP			512
#define	IPPORT_WHOSERVER		513
#define	IPPORT_ROUTESERVER	520	/* 520+1 also used */

/*
 * Ports < IPPORT_RESERVED are reserved for
 * privileged processes (e.g. root).
 * Ports > IPPORT_USERRESERVED are reserved
 * for servers, not necessarily privileged.
 */
#define	IPPORT_RESERVED		1024
#define	IPPORT_USERRESERVED	5000

/*
 * Link numbers
 */
#define	IMPLINK_IP				155
#define	IMPLINK_LOWEXPER		156
#define	IMPLINK_HIGHEXPER		158

/*
 * Internet address
 *	This definition contains obsolete fields for compatibility
 *	with SunOS 3.x and 4.2bsd.  The presence of subnets renders
 *	divisions into fixed fields misleading at best.  New code
 *	should use only the s_addr field.
 */
struct in_addr {
	union {
		struct { Byte s_b1,s_b2,s_b3,s_b4; } S_un_b;
		struct { Word s_w1,s_w2; } S_un_w;
		DWord S_addr;
	} S_un;
#define	s_addr	S_un.S_addr				/* should be used for all code */
#define	s_host	S_un.S_un_b.s_b2		/* OBSOLETE: host on imp */
#define	s_net	S_un.S_un_b.s_b1			/* OBSOLETE: network */
#define	s_imp	S_un.S_un_w.s_w2			/* OBSOLETE: imp */
#define	s_impno	S_un.S_un_b.s_b4		/* OBSOLETE: imp # */
#define	s_lh	S_un.S_un_b.s_b3			/* OBSOLETE: logical host */
};

/*
 * Definitions of bits in internet address integers.
 * On subnets, the decomposition of addresses to host and net parts
 * is done according to subnet mask, not the masks here.
 */
#define	IN_CLASSA(i)			(((long)(i) & 0x80000000) == 0)
#define	IN_CLASSA_NET			0xff000000
#define	IN_CLASSA_NSHIFT		24
#define	IN_CLASSA_HOST			0x00ffffff
#define	IN_CLASSA_MAX			128

#define	IN_CLASSB(i)			(((long)(i) & 0xc0000000) == 0x80000000)
#define	IN_CLASSB_NET			0xffff0000
#define	IN_CLASSB_NSHIFT		16
#define	IN_CLASSB_HOST			0x0000ffff
#define	IN_CLASSB_MAX			65536

#define	IN_CLASSC(i)			(((long)(i) & 0xe0000000) == 0xc0000000)
#define	IN_CLASSC_NET			0xffffff00
#define	IN_CLASSC_NSHIFT		8
#define	IN_CLASSC_HOST			0x000000ff

#define	IN_CLASSD(i)			(((long)(i) & 0xf0000000) == 0xe0000000)
#define	IN_MULTICAST(i)		IN_CLASSD(i)

#define	IN_EXPERIMENTAL(i)	(((long)(i) & 0xe0000000) == 0xe0000000)
#define	IN_BADCLASS(i)			(((long)(i) & 0xf0000000) == 0xf0000000)

#define	INADDR_ANY				(u_long)0x00000000
#define	INADDR_NONE				(u_long)0xFFFFFFFF	/* error from inet_aton */
#define	INADDR_LOOPBACK		(u_long)0x7F000001
#define	INADDR_BROADCAST		(u_long)0xffffffff	/* must be masked */

#define	IN_LOOPBACKNET			127						/* official! */

/*
 * Define a macro to stuff the loopback address into an Internet address
 */
#define IN_SET_LOOPBACK_ADDR(a)	{(a)->sin_addr.s_addr  = htonl(INADDR_LOOPBACK); \
	(a)->sin_family = AF_INET;}

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

/*
 * Options for use with [gs]etsockopt at the IP level.
 */
#define	IP_OPTIONS	netSocketOptIPOptions		/* set/get IP per-packet options */ 

/*
 * Macros for number representation conversion.
 */
#define	ntohl(x)	(x)
#define	ntohs(x)	(x)
#define	htonl(x)	(x)
#define	htons(x)	(x)


#endif /*!__IN_H__*/