Annotation of src/usr.bin/telnet/externs.h, Revision 1.27
1.27 ! guenther 1: /* $OpenBSD: externs.h,v 1.26 2014/07/20 10:55:26 guenther Exp $ */
1.3 art 2: /* $KTH: externs.h,v 1.16 1997/11/29 02:28:35 joda Exp $ */
1.2 niklas 3:
1.1 deraadt 4: /*
5: * Copyright (c) 1988, 1990, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.11 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
1.3 art 32: * @(#)externs.h 8.3 (Berkeley) 5/30/95
1.1 deraadt 33: */
34:
35: #define SUBBUFSIZE 256
36:
37: extern int
38: autologin, /* Autologin enabled */
39: skiprc, /* Don't process the ~/.telnetrc file */
40: eight, /* use eight bit mode (binary in and/or out */
1.3 art 41: binary,
1.12 otto 42: family, /* address family of peer */
1.1 deraadt 43: flushout, /* flush output */
44: connected, /* Are we connected to the other side? */
45: globalmode, /* Mode tty should be in */
46: telnetport, /* Are we connected to the telnet port? */
47: localflow, /* Flow control handled locally */
48: restartany, /* If flow control, restart output on any character */
49: localchars, /* we recognize interrupt/quit */
1.2 niklas 50: donelclchars, /* the user has set "localchars" */
1.1 deraadt 51: showoptions,
52: net, /* Network file descriptor */
53: tin, /* Terminal input file descriptor */
54: tout, /* Terminal output file descriptor */
55: crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
56: autoflush, /* flush output when interrupting? */
57: autosynch, /* send interrupt characters with SYNCH? */
58: SYNCHing, /* Is the stream in telnet SYNCH mode? */
59: donebinarytoggle, /* the user has put us in binary */
60: dontlecho, /* do we suppress local echoing right now? */
61: crmod,
62: netdata, /* Print out network data flow */
63: prettydump, /* Print "netdata" output in user readable format */
64: termdata, /* Print out terminal data flow */
1.27 ! guenther 65: resettermname,
! 66: linemode,
! 67: kludgelinemode,
! 68: want_status_response,
1.3 art 69: debug; /* Debug level */
1.1 deraadt 70:
71: extern cc_t escape; /* Escape to command mode */
72: extern cc_t rlogin; /* Rlogin mode escape character */
73: #ifdef KLUDGELINEMODE
74: extern cc_t echoc; /* Toggle local echoing */
75: #endif
76:
77: extern char
78: *prompt; /* Prompt for command. */
79:
80: extern char
81: doopt[],
82: dont[],
83: will[],
84: wont[],
1.27 ! guenther 85: will_wont_resp[],
! 86: do_dont_resp[],
1.1 deraadt 87: options[], /* All the little options */
88: *hostname; /* Who are we connected to? */
1.15 claudio 89:
1.17 sthen 90: extern int rtableid; /* routing table to use */
1.1 deraadt 91:
92: /*
93: * We keep track of each side of the option negotiation.
94: */
95:
96: #define MY_STATE_WILL 0x01
97: #define MY_WANT_STATE_WILL 0x02
98: #define MY_STATE_DO 0x04
99: #define MY_WANT_STATE_DO 0x08
100:
101: /*
102: * Macros to check the current state of things
103: */
104:
105: #define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
106: #define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
107: #define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
108: #define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
109:
110: #define my_state_is_dont(opt) (!my_state_is_do(opt))
111: #define my_state_is_wont(opt) (!my_state_is_will(opt))
112: #define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
113: #define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
114:
115: #define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;}
116: #define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;}
117: #define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;}
118: #define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;}
119:
120: #define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;}
121: #define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;}
122: #define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;}
123: #define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;}
124:
125: /*
1.7 pvalchev 126: * Make everything symmetrical
1.1 deraadt 127: */
128:
129: #define HIS_STATE_WILL MY_STATE_DO
130: #define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
131: #define HIS_STATE_DO MY_STATE_WILL
132: #define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
133:
134: #define his_state_is_do my_state_is_will
135: #define his_state_is_will my_state_is_do
136: #define his_want_state_is_do my_want_state_is_will
137: #define his_want_state_is_will my_want_state_is_do
138:
139: #define his_state_is_dont my_state_is_wont
140: #define his_state_is_wont my_state_is_dont
141: #define his_want_state_is_dont my_want_state_is_wont
142: #define his_want_state_is_wont my_want_state_is_dont
143:
144: #define set_his_state_do set_my_state_will
145: #define set_his_state_will set_my_state_do
146: #define set_his_want_state_do set_my_want_state_will
147: #define set_his_want_state_will set_my_want_state_do
148:
149: #define set_his_state_dont set_my_state_wont
150: #define set_his_state_wont set_my_state_dont
151: #define set_his_want_state_dont set_my_want_state_wont
152: #define set_his_want_state_wont set_my_want_state_dont
153:
154:
155: extern unsigned char
156: NetTraceFile[]; /* Name of file where debugging output goes */
157: extern void
1.3 art 158: SetNetTrace (char *); /* Function to change where debugging goes */
1.1 deraadt 159:
160: extern jmp_buf
161: peerdied,
162: toplevel; /* For error conditions. */
163:
1.3 art 164: /* commands.c */
165:
166: struct env_lst *env_define (unsigned char *, unsigned char *);
167: void env_init (void);
168: unsigned char * env_default(int init, int welldefined);
1.14 otto 169: unsigned char * env_getvalue(unsigned char *var, int exported_only);
1.3 art 170:
171: void set_escape_char(char *s);
172:
173: #ifdef SIGINFO
1.27 ! guenther 174: void ayt_status(int sig);
1.3 art 175: #endif
176: int tn(int argc, char **argv);
177: void command(int top, char *tbuf, int cnt);
178:
179: /* main.c */
180:
181: void tninit(void);
182:
183: /* network.c */
184:
185: void init_network(void);
186: int stilloob(void);
187: void setneturg(void);
188: int netflush(void);
189:
190: /* sys_bsd.c */
191:
192: void init_sys(void);
193: int TerminalSpecialChars(int c);
194: void TerminalDefaultChars(void);
195: cc_t *tcval(int func);
196: void TerminalSpeeds(long *input_speed, long *output_speed);
197: int TerminalWindowSize(long *rows, long *cols);
1.26 guenther 198: void TerminalNewMode(int);
199: void TerminalSaveState(void);
200: void sys_telnet_init(void);
1.3 art 201: int process_rings(int netin, int netout, int netex, int ttyin, int ttyout,
202: int poll);
203:
204: /* telnet.c */
205:
206: void init_telnet(void);
207:
208: void tel_leave_binary(int rw);
209: void tel_enter_binary(int rw);
210: int opt_welldefined(char *ep);
1.26 guenther 211: void telnet(char *);
1.3 art 212: int telrcv(void);
213: int rlogin_susp(void);
214: void intp(void);
215: void sendbrk(void);
216: void sendabort(void);
217: void sendsusp(void);
218: void sendeof(void);
219: void sendayt(void);
1.26 guenther 220: void sendnaws(void);
1.3 art 221:
222: void xmitAO(void);
223: void xmitEL(void);
224: void xmitEC(void);
225:
226: void send_do (int, int);
227: void send_dont (int, int);
228: void send_will (int, int);
229: void send_wont (int, int);
230:
231: void lm_mode (unsigned char *, int, int);
232:
233: void slcstate (void);
1.23 guenther 234: void slc_mode_export (int);
1.3 art 235: void slc_mode_import (int);
236: void slc_check (void);
237:
238: void env_opt_start_info (void);
239: void env_opt_add (unsigned char *);
240: void env_opt_end (int);
241:
242: unsigned char *env_default (int, int);
1.14 otto 243: unsigned char *env_getvalue (unsigned char *, int);
1.3 art 244:
245: int get_status (void);
246: int dosynch (void);
247:
248: cc_t *tcval (int);
249:
1.23 guenther 250: __dead void quit(void);
1.3 art 251:
1.18 guenther 252: /* genget.c */
253:
254: char **genget(char *name, char **table, int stlen);
255: int isprefix(char *s1, char *s2);
256: int Ambiguous(void *s);
257:
1.3 art 258: /* terminal.c */
259:
260: void init_terminal(void);
261: int ttyflush(int drop);
262: int getconnmode(void);
1.26 guenther 263: void setconnmode(int);
264: void setcommandmode(void);
1.3 art 265:
266: /* utilities.c */
267:
268: void SetNetTrace(char *file);
269: void Dump(char direction, unsigned char *buffer, int length);
270: void printoption(char *direction, int cmd, int option);
271: void optionstatus(void);
1.6 hin 272: void printsub(int direction, unsigned char *pointer, int length);
1.3 art 273: void EmptyTerminal(void);
274: void SetForExit(void);
1.20 guenther 275: __dead void Exit(int returnCode);
1.25 guenther 276: __dead void ExitString(char *string, int returnCode);
1.1 deraadt 277:
1.3 art 278: extern struct termios new_tc;
1.1 deraadt 279:
280: # define termEofChar new_tc.c_cc[VEOF]
281: # define termEraseChar new_tc.c_cc[VERASE]
282: # define termIntChar new_tc.c_cc[VINTR]
283: # define termKillChar new_tc.c_cc[VKILL]
284: # define termQuitChar new_tc.c_cc[VQUIT]
1.24 guenther 285: # define termSuspChar new_tc.c_cc[VSUSP]
1.1 deraadt 286:
287: # if defined(VFLUSHO) && !defined(VDISCARD)
288: # define VDISCARD VFLUSHO
289: # endif
290: # ifndef VDISCARD
291: extern cc_t termFlushChar;
292: # else
293: # define termFlushChar new_tc.c_cc[VDISCARD]
294: # endif
295: # ifndef VWERASE
296: extern cc_t termWerasChar;
297: # else
298: # define termWerasChar new_tc.c_cc[VWERASE]
299: # endif
300: # ifndef VREPRINT
301: extern cc_t termRprntChar;
302: # else
303: # define termRprntChar new_tc.c_cc[VREPRINT]
304: # endif
305: # ifndef VLNEXT
306: extern cc_t termLiteralNextChar;
307: # else
308: # define termLiteralNextChar new_tc.c_cc[VLNEXT]
309: # endif
310: # ifndef VSTART
311: extern cc_t termStartChar;
312: # else
313: # define termStartChar new_tc.c_cc[VSTART]
314: # endif
315: # ifndef VSTOP
316: extern cc_t termStopChar;
317: # else
318: # define termStopChar new_tc.c_cc[VSTOP]
319: # endif
320: # ifndef VEOL
321: extern cc_t termForw1Char;
322: # else
323: # define termForw1Char new_tc.c_cc[VEOL]
324: # endif
325: # ifndef VEOL2
326: extern cc_t termForw2Char;
327: # else
328: # define termForw2Char new_tc.c_cc[VEOL]
329: # endif
330: # ifndef VSTATUS
331: extern cc_t termAytChar;
332: #else
333: # define termAytChar new_tc.c_cc[VSTATUS]
334: #endif
335:
336: /* Ring buffer structures which are shared */
337:
338: extern Ring
339: netoring,
340: netiring,
341: ttyoring,
342: ttyiring;
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