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data.h
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1991-07-09
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/*
* data.h
* Declarations of global variables for TCP/IP libraries
*
****************************************************************************
* *
* *
* NCSA Telnet *
* by Tim Krauskopf, VT100 by Gaige Paulsen, Tek by Aaron Contorer *
* *
* National Center for Supercomputing Applications *
* 152 Computing Applications Building *
* 605 E. Springfield Ave. *
* Champaign, IL 61820 *
* *
* Copyright (c) 1987, Board of Trustees of the University of Illinois *
* *
****************************************************************************
*
*/
/*
* Start with declarations that tell the difference between PC and other
* computers
*/
#ifdef PC
#include "pcdefs.h"
#else
#include "macdefs.h"
#endif
#ifdef MASTERDEF
unsigned char
us[] =
{"National Center for Supercomputing Applications -- TCP/IP by Tim Krauskopf"},
nnmyaddr[DADDLEN], /* my ethernet hardware address */
broadaddr[DADDLEN], /* the broadcast address */
nnipnum[4], /* my ip number */
nnredir = 0, /* flag indicating need for redirect */
nnicmpsave[4], /* address for icmp redirect */
nnicmpnew[4], /* new gateway from icmp redirect */
nnmask[4] = {0,0,0,0}, /* the default subnet mask */
nnamask[4] = {255,0,0,0}, /* class A mask */
nnbmask[4] = {255,255,0,0}, /* class B mask */
nncmask[4] = {255,255,255,0}, /* class C mask */
broadip[4] = {0xff,0xff,0xff,0xff};
int
nnipident /* ident field of outgoing ip packets */
=1,
nnefirst /* first entry in event q */
=0,
nnelast /* last entry in event q */
=0,
nnefree /* free list for event q */
=0,
nnemac /* Macintosh is using direct EtherTalk */
=0,
nndto /* dlayertimeout */
=DLAYTIMEOUT,
nnfromport /* can force a port number selection */
= 0,
nncredit = CREDIT, /* limited window in some cases */
nnsegsize = MAXSEG; /* maximum segment size (intswapped) */
struct port *portlist[NPORTS]; /* allocate like iobuffers in UNIX */
struct uport ulist; /* buffer for UDP */
struct pseudotcp tcps; /* for checksums */
struct acache arpc[CACHELEN]; /* cache for hardware addresses */
struct eq nnq[NEVENTS]; /* event queue */
ARPKT arp;
DLAYER blankd;
IPKT blankip;
/*ICMPKT blankicmp;*/
#else
extern unsigned char
nnmyaddr[DADDLEN], /* my ethernet hardware address */
broadaddr[DADDLEN] /* the broadcast address */,
broadip[4],
nnipnum[4],
nnredir, /* flag indicating need for redirect */
nnicmpsave[4], /* address for icmp redirect */
nnicmpnew[4], /* new gateway from icmp redirect */
nnmask[4],
nnamask[4],
nnbmask[4],
nncmask[4];
extern int
nnipident /* ident field of ip */,
nnefirst /* first entry in event q */,
nnelast /* last entry in event q */,
nndto /* dlayertimeout */,
nnefree,
nnemac, /* Macintosh is using direct EtherTalk */
nnfromport, /* can force a port number selection */
nncredit,
nnsegsize; /* maximum segment size */
extern struct port *portlist[NPORTS]; /* allocate like iobuffers in UNIX */
extern struct uport ulist; /* buffer for UDP */
extern struct pseudotcp tcps; /* for checksums */
extern struct acache arpc[CACHELEN]; /* cache for hardware addresses */
extern struct eq nnq[NEVENTS]; /* event queue */
extern ARPKT arp;
extern DLAYER blankd;
extern IPKT blankip;
/*extern ICMPKT blankicmp;*/
#endif
/*
* defines for types for functions, global to everyone
*/
char *nbgets();
uint8 *getdlayer(),*netdlayer();
char *neterrstring(); /* some more static data for driver */
/*
* defines of constants and macros that everyone needs to know
*/
#define nnerror(A) netposterr(A)