#ifndef BSD
# define BSD 43
#endif
#ifndef _POSIX_VDISABLE
# ifdef sun
# include <sys/param.h>
# endif
# ifdef VDISABLE
# define _POSIX_VDISABLE VDISABLE
# else
# define _POSIX_VDISABLE ((cc_t)'\377')
# endif
#endif
#define SUBBUFSIZE 256
extern int
autologin,
skiprc,
eight,
binary,
flushout,
connected,
globalmode,
telnetport,
localflow,
restartany,
localchars,
donelclchars,
showoptions,
wantencryption,
net,
tin,
tout,
crlf,
autoflush,
autosynch,
SYNCHing,
donebinarytoggle,
dontlecho,
crmod,
netdata,
prettydump,
termdata,
debug;
extern int intr_happened, intr_waiting;
extern cc_t escape;
extern cc_t rlogin;
#ifdef KLUDGELINEMODE
extern cc_t echoc;
#endif
extern char
*prompt;
extern char
doopt[],
dont[],
will[],
wont[],
do_dont_resp[],
will_wont_resp[],
options[],
*hostname;
#if defined(ENCRYPTION)
extern void (*encrypt_output) (unsigned char *, int);
extern int (*decrypt_input) (int);
#endif
#define MY_STATE_WILL 0x01
#define MY_WANT_STATE_WILL 0x02
#define MY_STATE_DO 0x04
#define MY_WANT_STATE_DO 0x08
#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;}
#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;
extern char
NetTraceFile[];
extern void
SetNetTrace (char *);
extern jmp_buf
peerdied,
toplevel;
int Scheduler(int);
extern int scheduler_lockout_tty;
#if defined(AUTHENTICATION) || defined(ENCRYPTION)
int telnet_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);
#endif
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);
void set_escape_char(char *s);
int sourceroute(struct addrinfo *ai, char *arg, char **cpp,
int *prototp, int *optp);
#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
RETSIGTYPE ayt_status(int);
#endif
int tn(int argc, char **argv);
void command(int top, char *tbuf, int cnt);
void tninit(void);
void set_forward_options(void);
void init_network(void);
int stilloob(void);
void setneturg(void);
int netflush(void);
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);
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 sendnaws (void);
void setconnmode (int);
void setcommandmode (void);
void setneturg (void);
void sys_telnet_init (void);
void my_telnet (char *);
void tel_enter_binary (int);
void TerminalFlushOutput (void);
void TerminalNewMode (int);
void TerminalRestoreState (void);
void TerminalSaveState (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 get_status (void);
int dosynch (void);
cc_t *tcval (int);
int quit (void);
void init_terminal(void);
int ttyflush(int drop);
int getconnmode(void);
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, size_t 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
extern Ring
netoring,
netiring,
ttyoring,
ttyiring;
extern int resettermname;
extern int linemode;
#ifdef KLUDGELINEMODE
extern int kludgelinemode;
#endif
extern int want_status_response;