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Fix the naming of interfaces and variables for rdomains and rtables
and make it possible to bind sockets (including listening sockets!)
to rtables and not just rdomains.  This changes the name of the
system calls, socket option, and ioctl.  After building with this
you should remove the files /usr/share/man/cat2/[gs]etrdomain.0.

Since this removes the existing [gs]etrdomain() system calls, the
libc major is bumped.

Written by claudio@, criticized^Wcritiqued by me

/*	$OpenBSD: externs.h,v 1.16 2010/07/03 04:44:51 guenther Exp $	*/
/* $KTH: externs.h,v 1.16 1997/11/29 02:28:35 joda Exp $ */

/*
 * Copyright (c) 1988, 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)externs.h	8.3 (Berkeley) 5/30/95
 */

#ifndef	BSD
# define BSD 43
#endif

#ifndef	_POSIX_VDISABLE
# ifdef sun
#  include <sys/param.h>	/* pick up VDISABLE definition, mayby */
# endif
# ifdef VDISABLE
#  define _POSIX_VDISABLE VDISABLE
# else
#  define _POSIX_VDISABLE ((cc_t)'\377')
# endif
#endif

#define	SUBBUFSIZE	256

extern int
    autologin,		/* Autologin enabled */
    skiprc,		/* Don't process the ~/.telnetrc file */
    eight,		/* use eight bit mode (binary in and/or out */
    binary,
    family,		/* address family of peer */
    flushout,		/* flush output */
    connected,		/* Are we connected to the other side? */
    globalmode,		/* Mode tty should be in */
    telnetport,		/* Are we connected to the telnet port? */
    In3270,            /* Are we in 3270 mode? */
    localflow,		/* Flow control handled locally */
    restartany,		/* If flow control, restart output on any character */
    localchars,		/* we recognize interrupt/quit */
    donelclchars,	/* the user has set "localchars" */
    showoptions,
    wantencryption,	/* User has requested encryption */
    net,		/* Network file descriptor */
    tin,		/* Terminal input file descriptor */
    tout,		/* Terminal output file descriptor */
    crlf,		/* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
    autoflush,		/* flush output when interrupting? */
    autosynch,		/* send interrupt characters with SYNCH? */
    SYNCHing,		/* Is the stream in telnet SYNCH mode? */
    donebinarytoggle,	/* the user has put us in binary */
    dontlecho,		/* do we suppress local echoing right now? */
    crmod,
    netdata,		/* Print out network data flow */
    prettydump,		/* Print "netdata" output in user readable format */
#if    defined(TN3270)
    cursesdata,		/* Print out curses data flow */
    apitrace,		/* Trace API transactions */
#endif /* defined(TN3270) */
    termdata,		/* Print out terminal data flow */
    debug;		/* Debug level */

extern volatile sig_atomic_t intr_happened, intr_waiting;	/* for interrupt handling */

extern cc_t escape;	/* Escape to command mode */
extern cc_t rlogin;	/* Rlogin mode escape character */
#ifdef	KLUDGELINEMODE
extern cc_t echoc;	/* Toggle local echoing */
#endif

extern char
    *prompt;		/* Prompt for command. */

extern char
    doopt[],
    dont[],
    will[],
    wont[],
    options[],		/* All the little options */
    *hostname;		/* Who are we connected to? */
#if	defined(ENCRYPTION)
extern void (*encrypt_output) (unsigned char *, int);
extern int (*decrypt_input) (int);
#endif

extern u_int	rtableid;	/* routing table to use */

/*
 * We keep track of each side of the option negotiation.
 */

#define	MY_STATE_WILL		0x01
#define	MY_WANT_STATE_WILL	0x02
#define	MY_STATE_DO		0x04
#define	MY_WANT_STATE_DO	0x08

/*
 * Macros to check the current state of things
 */

#define	my_state_is_do(opt)		(options[opt]&MY_STATE_DO)
#define	my_state_is_will(opt)		(options[opt]&MY_STATE_WILL)
#define my_want_state_is_do(opt)	(options[opt]&MY_WANT_STATE_DO)
#define my_want_state_is_will(opt)	(options[opt]&MY_WANT_STATE_WILL)

#define	my_state_is_dont(opt)		(!my_state_is_do(opt))
#define	my_state_is_wont(opt)		(!my_state_is_will(opt))
#define my_want_state_is_dont(opt)	(!my_want_state_is_do(opt))
#define my_want_state_is_wont(opt)	(!my_want_state_is_will(opt))

#define	set_my_state_do(opt)		{options[opt] |= MY_STATE_DO;}
#define	set_my_state_will(opt)		{options[opt] |= MY_STATE_WILL;}
#define	set_my_want_state_do(opt)	{options[opt] |= MY_WANT_STATE_DO;}
#define	set_my_want_state_will(opt)	{options[opt] |= MY_WANT_STATE_WILL;}

#define	set_my_state_dont(opt)		{options[opt] &= ~MY_STATE_DO;}
#define	set_my_state_wont(opt)		{options[opt] &= ~MY_STATE_WILL;}
#define	set_my_want_state_dont(opt)	{options[opt] &= ~MY_WANT_STATE_DO;}
#define	set_my_want_state_wont(opt)	{options[opt] &= ~MY_WANT_STATE_WILL;}

/*
 * Make everything symmetrical
 */

#define	HIS_STATE_WILL			MY_STATE_DO
#define	HIS_WANT_STATE_WILL		MY_WANT_STATE_DO
#define HIS_STATE_DO			MY_STATE_WILL
#define HIS_WANT_STATE_DO		MY_WANT_STATE_WILL

#define	his_state_is_do			my_state_is_will
#define	his_state_is_will		my_state_is_do
#define his_want_state_is_do		my_want_state_is_will
#define his_want_state_is_will		my_want_state_is_do

#define	his_state_is_dont		my_state_is_wont
#define	his_state_is_wont		my_state_is_dont
#define his_want_state_is_dont		my_want_state_is_wont
#define his_want_state_is_wont		my_want_state_is_dont

#define	set_his_state_do		set_my_state_will
#define	set_his_state_will		set_my_state_do
#define	set_his_want_state_do		set_my_want_state_will
#define	set_his_want_state_will		set_my_want_state_do

#define	set_his_state_dont		set_my_state_wont
#define	set_his_state_wont		set_my_state_dont
#define	set_his_want_state_dont		set_my_want_state_wont
#define	set_his_want_state_wont		set_my_want_state_dont


extern FILE
    *NetTrace;		/* Where debugging output goes */
extern unsigned char
    NetTraceFile[];	/* Name of file where debugging output goes */
extern void
    SetNetTrace (char *);	/* Function to change where debugging goes */

extern jmp_buf
    peerdied,
    toplevel;		/* For error conditions. */

/* authenc.c */

#if	defined(AUTHENTICATION) || defined(ENCRYPTION)
int net_write(unsigned char *str, int len);
void net_encrypt(void);
int telnet_spin(void);
char *telnet_getenv(const char *val);
char *telnet_gets(char *prompt, char *result, int length, int echo);
int Scheduler(int block);
#endif

/* commands.c */

struct env_lst *env_define (unsigned char *, unsigned char *);
struct env_lst *env_find(unsigned char *var);
void env_init (void);
void env_undefine (unsigned char *);
void env_export (unsigned char *);
void env_unexport (unsigned char *);
void env_send (unsigned char *);
void env_list (void);
unsigned char * env_default(int init, int welldefined);
unsigned char * env_getvalue(unsigned char *var, int exported_only);

void set_escape_char(char *s);
unsigned long sourceroute(char *arg, char **cpp, int *lenp);

#if	defined(AUTHENTICATION)
int auth_enable (char *);
int auth_disable (char *);
int auth_status (void);
#endif

#if defined(ENCRYPTION)
int 	EncryptEnable (char *, char *);
int 	EncryptDisable (char *, char *);
int 	EncryptType (char *, char *);
int 	EncryptStart (char *);
int 	EncryptStartInput (void);
int 	EncryptStartOutput (void);
int 	EncryptStop (char *);
int 	EncryptStopInput (void);
int 	EncryptStopOutput (void);
int 	EncryptStatus (void);
#endif

#ifdef SIGINFO
void ayt_status(void);
#endif
int tn(int argc, char **argv);
void command(int top, char *tbuf, int cnt);

/* main.c */

void tninit(void);
void usage(void);

/* network.c */

void init_network(void);
int stilloob(void);
void setneturg(void);
int netflush(void);

/* sys_bsd.c */

void init_sys(void);
int TerminalWrite(char *buf, int n);
int TerminalRead(unsigned char *buf, int n);
int TerminalAutoFlush(void);
int TerminalSpecialChars(int c);
void TerminalFlushOutput(void);
void TerminalSaveState(void);
void TerminalDefaultChars(void);
void TerminalNewMode(int f);
cc_t *tcval(int func);
void TerminalSpeeds(long *input_speed, long *output_speed);
int TerminalWindowSize(long *rows, long *cols);
int NetClose(int fd);
void NetNonblockingIO(int fd, int onoff);
int process_rings(int netin, int netout, int netex, int ttyin, int ttyout,
		  int poll);

/* telnet.c */

void init_telnet(void);

void tel_leave_binary(int rw);
void tel_enter_binary(int rw);
int opt_welldefined(char *ep);
int telrcv(void);
int rlogin_susp(void);
void intp(void);
void sendbrk(void);
void sendabort(void);
void sendsusp(void);
void sendeof(void);
void sendayt(void);

void xmitAO(void);
void xmitEL(void);
void xmitEC(void);


void     Dump (char, unsigned char *, int);
void     printoption (char *, int, int);
void     printsub (int, unsigned char *, int);
void     sendnaws (void);
void     setconnmode (int);
void     setcommandmode (void);
void     setneturg (void);
void     sys_telnet_init (void);
void     telnet (char *);
void     tel_enter_binary (int);
void     TerminalFlushOutput (void);
void     TerminalNewMode (int);
void     TerminalRestoreState (void);
void     TerminalSaveState (void);
void     tninit (void);
void     willoption (int);
void     wontoption (int);


void     send_do (int, int);
void     send_dont (int, int);
void     send_will (int, int);
void     send_wont (int, int);

void     lm_will (unsigned char *, int);
void     lm_wont (unsigned char *, int);
void     lm_do (unsigned char *, int);
void     lm_dont (unsigned char *, int);
void     lm_mode (unsigned char *, int, int);

void     slc_init (void);
void     slcstate (void);
void     slc_mode_export (void);
void     slc_mode_import (int);
void     slc_import (int);
void     slc_export (void);
void     slc (unsigned char *, int);
void     slc_check (void);
void     slc_start_reply (void);
void     slc_add_reply (unsigned char, unsigned char, cc_t);
void     slc_end_reply (void);
int	 slc_update (void);

void     env_opt (unsigned char *, int);
void     env_opt_start (void);
void     env_opt_start_info (void);
void     env_opt_add (unsigned char *);
void     env_opt_end (int);

unsigned char     *env_default (int, int);
unsigned char     *env_getvalue (unsigned char *, int);

int get_status (void);
int dosynch (void);

cc_t *tcval (int);

int quit (void);

/* terminal.c */

void init_terminal(void);
int ttyflush(int drop);
int getconnmode(void);

/* utilities.c */

int SetSockOpt(int fd, int level, int option, int yesno);
void SetNetTrace(char *file);
void Dump(char direction, unsigned char *buffer, int length);
void printoption(char *direction, int cmd, int option);
void optionstatus(void);
void printsub(int direction, unsigned char *pointer, int length);
void EmptyTerminal(void);
void SetForExit(void);
void Exit(int returnCode);
void ExitString(char *string, int returnCode);

extern struct	termios new_tc;

# define termEofChar		new_tc.c_cc[VEOF]
# define termEraseChar		new_tc.c_cc[VERASE]
# define termIntChar		new_tc.c_cc[VINTR]
# define termKillChar		new_tc.c_cc[VKILL]
# define termQuitChar		new_tc.c_cc[VQUIT]

# ifndef	VSUSP
extern cc_t termSuspChar;
# else
#  define termSuspChar		new_tc.c_cc[VSUSP]
# endif
# if	defined(VFLUSHO) && !defined(VDISCARD)
#  define VDISCARD VFLUSHO
# endif
# ifndef	VDISCARD
extern cc_t termFlushChar;
# else
#  define termFlushChar		new_tc.c_cc[VDISCARD]
# endif
# ifndef VWERASE
extern cc_t termWerasChar;
# else
#  define termWerasChar		new_tc.c_cc[VWERASE]
# endif
# ifndef	VREPRINT
extern cc_t termRprntChar;
# else
#  define termRprntChar		new_tc.c_cc[VREPRINT]
# endif
# ifndef	VLNEXT
extern cc_t termLiteralNextChar;
# else
#  define termLiteralNextChar	new_tc.c_cc[VLNEXT]
# endif
# ifndef	VSTART
extern cc_t termStartChar;
# else
#  define termStartChar		new_tc.c_cc[VSTART]
# endif
# ifndef	VSTOP
extern cc_t termStopChar;
# else
#  define termStopChar		new_tc.c_cc[VSTOP]
# endif
# ifndef	VEOL
extern cc_t termForw1Char;
# else
#  define termForw1Char		new_tc.c_cc[VEOL]
# endif
# ifndef	VEOL2
extern cc_t termForw2Char;
# else
#  define termForw2Char		new_tc.c_cc[VEOL]
# endif
# ifndef	VSTATUS
extern cc_t termAytChar;
#else
#  define termAytChar		new_tc.c_cc[VSTATUS]
#endif

/* Ring buffer structures which are shared */

extern Ring
    netoring,
    netiring,
    ttyoring,
    ttyiring;

/* Tn3270 section */
#if    defined(TN3270)

extern int
    HaveInput,         /* Whether an asynchronous I/O indication came in */
    noasynchtty,       /* Don't do signals on I/O (SIGURG, SIGIO) */
    noasynchnet,       /* Don't do signals on I/O (SIGURG, SIGIO) */
    sigiocount,                /* Count of SIGIO receptions */
    shell_active;      /* Subshell is active */

extern char
    *Ibackp,           /* Oldest byte of 3270 data */
    Ibuf[],            /* 3270 buffer */
    *Ifrontp,          /* Where next 3270 byte goes */
    tline[200],
    *transcom;         /* Transparent command */

extern int
    settranscom(int, char**);

extern void
    inputAvailable(int);
#endif /* defined(TN3270) */