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/* $OpenBSD: externs.h,v 1.32 2024/05/21 05:00:48 jsg 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
*/
#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 */
connections,
connected, /* Are we connected to the other side? */
globalmode, /* Mode tty should be in */
telnetport, /* Are we connected to the telnet port? */
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,
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 */
termdata, /* Print out terminal data flow */
resettermname,
linemode,
kludgelinemode,
want_status_response;
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
will_wont_resp[],
do_dont_resp[],
options[], /* All the little options */
*hostname; /* Who are we connected to? */
extern 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 jmp_buf
peerdied,
toplevel; /* For error conditions. */
/* commands.c */
struct env_lst *env_define (const char *, const char *);
void env_init (void);
char *env_default(int init, int welldefined);
char *env_getvalue(const char *var, int exported_only);
void set_escape_char(char *s);
#ifdef SIGINFO
void ayt_status(int sig);
#endif
int tn(int argc, char **argv);
void command(int top, char *tbuf, int cnt);
/* main.c */
void tninit(void);
/* network.c */
void init_network(void);
int stilloob(void);
void setneturg(void);
int netflush(void);
/* sys_bsd.c */
void init_sys(void);
int TerminalSpecialChars(int c);
void TerminalDefaultChars(void);
cc_t *tcval(int func);
void TerminalSpeeds(long *input_speed, long *output_speed);
int TerminalWindowSize(long *rows, long *cols);
void TerminalNewMode(int);
void TerminalSaveState(void);
void sys_telnet_init(void);
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(const char *ep);
void telnet(char *);
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 sendnaws(void);
void xmitAO(void);
void xmitEL(void);
void xmitEC(void);
void send_do (int, int);
void send_dont (int, int);
void send_will (int, int);
void send_wont (int, int);
void lm_mode (unsigned char *, int, int);
void slcstate (void);
void slc_mode_export (int);
void slc_mode_import (int);
void slc_check (void);
void env_opt_start_info (void);
void env_opt_add (char *);
void env_opt_end (int);
int get_status (void);
int dosynch (void);
cc_t *tcval (int);
__dead void quit(void);
/* genget.c */
char **genget(char *name, char **table, int stlen);
int isprefix(char *s1, char *s2);
int Ambiguous(void *s);
/* terminal.c */
void init_terminal(void);
int ttyflush(int drop);
int getconnmode(void);
void setconnmode(int);
void setcommandmode(void);
/* utilities.c */
extern char NetTraceFile[];
void SetNetTrace(const char *file);
void Dump(char direction, unsigned char *buffer, int length);
void printoption(char *direction, int cmd, int option);
void optionstatus(void);
void printsub(char direction, unsigned char *pointer, int length);
void EmptyTerminal(void);
void SetForExit(void);
__dead void Exit(int returnCode);
__dead 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]
# define termSuspChar new_tc.c_cc[VSUSP]
# define termFlushChar new_tc.c_cc[VDISCARD]
# define termWerasChar new_tc.c_cc[VWERASE]
# define termRprntChar new_tc.c_cc[VREPRINT]
# define termLiteralNextChar new_tc.c_cc[VLNEXT]
# define termStartChar new_tc.c_cc[VSTART]
# define termStopChar new_tc.c_cc[VSTOP]
# define termForw1Char new_tc.c_cc[VEOL]
# define termForw2Char new_tc.c_cc[VEOL]
# define termAytChar new_tc.c_cc[VSTATUS]
/* Ring buffer structures which are shared */
extern Ring
netoring,
netiring,
ttyoring,
ttyiring;
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