Xref: utzoo comp.sys.apollo:1597 comp.windows.x:6159
Path: utzoo!attcan!uunet!seismo!sundc!pitstop!sun!decwrl!labrea!rutgers!ucla-cs!admin.cognet.ucla.edu!casey
From: casey@admin.cognet.ucla.edu (Casey Leedom)
Newsgroups: comp.sys.apollo,comp.windows.x
Subject: Re:  X11R3 under Apollo SR10.0
Message-ID: <17962@shemp.CS.UCLA.EDU>
Date: 16 Nov 88 00:35:54 GMT
References: <17940@shemp.CS.UCLA.EDU> <17957@shemp.CS.UCLA.EDU>
Sender: news@CS.UCLA.EDU
Reply-To: casey@cs.ucla.edu (Casey Leedom)
Organization: UCLA Cognitive Science Program
Lines: 77


  By the way, it strikes me that I forgot to include one note on my
earlier fixes for compiling X.V11R3 on the Apollo under the new release
of their operating system.  Apollo has decided not to include most of the
files from /usr/include/netinet.  I've already bitch and moaned about the
problem.  So far they're sticking to their position that there's nothing
in those files that users should need - even though tcp(4P) mentions
<netinet/tcp.h> ...

  In any case, as far as I can see, the only file you need that's
missing is tcp.h.  I've attached a copy here for your use.  (This is a
slightly modified version (byte ordering differences) of the file
distributed with 4.3BSD.  There's a Regents of California copyright on
it, but Berkeley has explicitly made the later releases of the file
publically available.  I'll probably get in trouble in any case ...)

Casey

-----
/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *	@(#)tcp.h	7.1 (Berkeley) 6/5/86
 */

typedef	u_long	tcp_seq;
/*
 * TCP header.
 * Per RFC 793, September, 1981.
 */
struct tcphdr {
	u_short	th_sport;		/* source port */
	u_short	th_dport;		/* destination port */
	tcp_seq	th_seq;			/* sequence number */
	tcp_seq	th_ack;			/* acknowledgement number */
#ifdef vax
	u_char	th_x2:4,		/* (unused) */
		th_off:4;		/* data offset */
#endif
#if defined(mc68000) || defined(m68000) || defined(_ISP__M68K) || defined(_ISP__A68K)
	u_char	th_off:4,		/* data offset */
		th_x2:4;		/* (unused) */
#endif
	u_char	th_flags;
#define	TH_FIN	0x01
#define	TH_SYN	0x02
#define	TH_RST	0x04
#define	TH_PUSH	0x08
#define	TH_ACK	0x10
#define	TH_URG	0x20
	u_short	th_win;			/* window */
	u_short	th_sum;			/* checksum */
	u_short	th_urp;			/* urgent pointer */
};

#define	TCPOPT_EOL	0
#define	TCPOPT_NOP	1
#define	TCPOPT_MAXSEG	2

/*
 * Default maximum segment size for TCP.
 * With an IP MSS of 576, this is 536,
 * but 512 is probably more convenient.
 */
#ifdef	lint
#define	TCP_MSS	536
#else
#define	TCP_MSS	MIN(512, IP_MSS - sizeof (struct tcpiphdr))
#endif

/*
 * User-settable options (used with setsockopt).
 */
#define	TCP_NODELAY	0x01	/* don't delay send to coalesce packets */
#define	TCP_MAXSEG	0x02	/* set maximum segment size */