/* $OpenBSD: externs.h,v 1.19 2014/07/20 03:00:31 deraadt 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 */ 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 (or )? */ 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 */ 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? */ 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 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. */ /* 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); #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 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); /* 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); /* utilities.c */ 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;