tip.h revision 1.20 1 /* $NetBSD: tip.h,v 1.20 2006/04/03 00:51:13 perry Exp $ */
2
3 /*
4 * Copyright (c) 1989, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
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.
16 * 3. Neither the name of the University nor the names of its contributors
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 *
32 * @(#)tip.h 8.1 (Berkeley) 6/6/93
33 */
34
35 /*
36 * tip - terminal interface program
37 */
38
39 #include <sys/param.h>
40 #include <sys/ioctl.h>
41 #include <sys/time.h>
42 #include <sys/wait.h>
43 #include <machine/endian.h>
44
45 #include <ctype.h>
46 #include <err.h>
47 #include <fcntl.h>
48 #include <errno.h>
49 #include <libgen.h>
50 #include <dirent.h>
51 #include <pwd.h>
52 #include <setjmp.h>
53 #include <signal.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <string.h>
57 #include <termios.h>
58 #include <time.h>
59 #include <unistd.h>
60
61 /*
62 * Remote host attributes
63 */
64 char *DV; /* UNIX device(s) to open */
65 char *EL; /* chars marking an EOL */
66 char *CM; /* initial connection message */
67 char *IE; /* EOT to expect on input */
68 char *OE; /* EOT to send to complete FT */
69 char *CU; /* call unit if making a phone call */
70 char *AT; /* acu type */
71 char *PN; /* phone number(s) */
72 char *DI; /* disconnect string */
73 char *PA; /* parity to be generated */
74
75 char *PH; /* phone number file */
76 char *RM; /* remote file name */
77 char *HO; /* host name */
78
79 long BR; /* line speed for conversation */
80 long FS; /* frame size for transfers */
81
82 int DU; /* this host is dialed up */
83 int HW; /* this device is hardwired, see hunt.c */
84 char *ES; /* escape character */
85 char *EX; /* exceptions */
86 char *FO; /* force (literal next) char*/
87 char *RC; /* raise character */
88 char *RE; /* script record file */
89 char *PR; /* remote prompt */
90 long DL; /* line delay for file transfers to remote */
91 long CL; /* char delay for file transfers to remote */
92 long ET; /* echocheck timeout */
93 int HD; /* this host is half duplex - do local echo */
94 char DC; /* this host is directly connected. */
95
96 /*
97 * String value table
98 */
99 typedef
100 struct {
101 const char *v_name; /* whose name is it */
102 char v_type; /* for interpreting set's */
103 char v_access; /* protection of touchy ones */
104 const char *v_abrev; /* possible abreviation */
105 char *v_value; /* casted to a union later */
106 /*
107 * XXX: this assumes that the storage space
108 * of a pointer >= that of a long
109 */
110 }
111 value_t;
112
113 #define STRING 01 /* string valued */
114 #define BOOL 02 /* true-false value */
115 #define NUMBER 04 /* numeric value */
116 #define CHAR 010 /* character value */
117
118 #define WRITE 01 /* write access to variable */
119 #define READ 02 /* read access */
120
121 #define CHANGED 01 /* low bit is used to show modification */
122 #define PUBLIC 1 /* public access rights */
123 #define PRIVATE 03 /* private to definer */
124 #define ROOT 05 /* root defined */
125
126 #define TRUE 1
127 #define FALSE 0
128
129 #define ENVIRON 020 /* initialize out of the environment */
130 #define IREMOTE 040 /* initialize out of remote structure */
131 #define INIT 0100 /* static data space used for initialization */
132 #define TMASK 017
133
134 /*
135 * Definition of ACU line description
136 */
137 typedef
138 struct {
139 const char *acu_name;
140 int (*acu_dialer)(char *, char *);
141 void (*acu_disconnect)(void);
142 void (*acu_abort)(void);
143 }
144 acu_t;
145
146 #define equal(a, b) (strcmp(a,b)==0)/* A nice function to string compare */
147
148 /*
149 * variable manipulation stuff --
150 * if we defined the value entry in value_t, then we couldn't
151 * initialize it in vars.c, so we cast it as needed to keep lint
152 * happy.
153 */
154
155 #define value(v) vtable[v].v_value
156
157 #define number(v) ((long)(v))
158 #define boolean(v) ((short)(long)(v))
159 #define character(v) ((char)(long)(v))
160 #define address(v) ((long *)(v))
161
162 #define setnumber(v,n) do { (v) = (char *)(long)(n); } while (0)
163 #define setboolean(v,n) do { (v) = (char *)(long)(n); } while (0)
164 #define setcharacter(v,n) do { (v) = (char *)(long)(n); } while (0)
165 #define setaddress(v,n) do { (v) = (char *)(n); } while (0)
166
167 /*
168 * Escape command table definitions --
169 * lookup in this table is performed when ``escapec'' is recognized
170 * at the begining of a line (as defined by the eolmarks variable).
171 */
172
173 typedef
174 struct {
175 char e_char; /* char to match on */
176 char e_flags; /* experimental, privileged */
177 const char *e_help; /* help string */
178 void (*e_func)(char); /* command */
179 }
180 esctable_t;
181
182 #define NORM 00 /* normal protection, execute anyone */
183 #define EXP 01 /* experimental, mark it with a `*' on help */
184 #define PRIV 02 /* privileged, root execute only */
185
186 extern int vflag; /* verbose during reading of .tiprc file */
187 extern value_t vtable[]; /* variable table */
188
189 /*
190 * Definition of indices into variable table so
191 * value(DEFINE) turns into a static address.
192 *
193 * XXX: keep in sync with vtable[] in vars.c
194 */
195
196 #define BEAUTIFY 0
197 #define BAUDRATE 1
198 #define DIALTIMEOUT 2
199 #define EOFREAD 3
200 #define EOFWRITE 4
201 #define EOL 5
202 #define ESCAPE 6
203 #define EXCEPTIONS 7
204 #define FORCE 8
205 #define FRAMESIZE 9
206 #define HOST 10
207 #define LOG 11
208 #define PHONES 12
209 #define PROMPT 13
210 #define RAISE 14
211 #define RAISECHAR 15
212 #define RECORD 16
213 #define REMOTE 17
214 #define SCRIPT 18
215 #define TABEXPAND 19
216 #define VERBOSE 20
217 #define SHELL 21
218 #define HOME 22
219 #define ECHOCHECK 23
220 #define DISCONNECT 24
221 #define TAND 25
222 #define LDELAY 26
223 #define CDELAY 27
224 #define ETIMEOUT 28
225 #define RAWFTP 29
226 #define HALFDUPLEX 30
227 #define LECHO 31
228 #define PARITY 32
229 #define HARDWAREFLOW 33
230
231 struct termios term; /* current mode of terminal */
232 struct termios defterm; /* initial mode of terminal */
233 struct termios defchars; /* current mode with initial chars */
234
235 FILE *fscript; /* FILE for scripting */
236
237 int fildes[2]; /* file transfer synchronization channel */
238 int repdes[2]; /* read process synchronization channel */
239 int FD; /* open file descriptor to remote host */
240 int AC; /* open file descriptor to dialer (v831 only) */
241 int vflag; /* print .tiprc initialization sequence */
242 int sfd; /* for ~< operation */
243 int pid; /* pid of tipout */
244 uid_t uid, euid; /* real and effective user id's */
245 gid_t gid, egid; /* real and effective group id's */
246 int stop; /* stop transfer session flag */
247 int quit; /* same; but on other end */
248 int intflag; /* recognized interrupt */
249 int stoprompt; /* for interrupting a prompt session */
250 int timedout; /* ~> transfer timedout */
251 int cumode; /* simulating the "cu" program */
252 int bits8; /* terminal is is 8-bit mode */
253 #define STRIP_PAR (bits8 ? 0377 : 0177)
254
255 char fname[80]; /* file name buffer for ~< */
256 char copyname[80]; /* file name buffer for ~> */
257 char ccc; /* synchronization character */
258 char ch; /* for tipout */
259 char *uucplock; /* name of lock file for uucp's */
260
261 int odisc; /* initial tty line discipline */
262 extern int disc; /* current tty discpline */
263
264 extern acu_t acutable[];
265 extern esctable_t etable[];
266 extern unsigned char evenpartab[];
267
268 void alrmtimeout(int);
269 int any(char, const char *);
270 void chdirectory(char);
271 void cleanup(int);
272 const char *connect(void);
273 void consh(char);
274 char *ctrl(char);
275 void cumain(int, char **);
276 void cu_put(char);
277 void cu_take(char);
278 void daemon_uid(void);
279 void disconnect(const char *);
280 char *expand(char *);
281 void finish(char);
282 void genbrk(char);
283 void getfl(char);
284 char *getremote(char *);
285 void hardwareflow(const char *);
286 void help(char);
287 int hunt(char *);
288 char *interp(const char *);
289 void logent(const char *, const char *, const char *, const char *);
290 void loginit(void);
291 void pipefile(char);
292 void pipeout(char);
293 int prompt(const char *, char *, size_t);
294 void xpwrite(int, char *, int);
295 void raw(void);
296 void send(char);
297 void sendfile(char);
298 void setparity(const char *);
299 void setscript(void);
300 void shell(char);
301 void shell_uid(void);
302 void suspend(char);
303 void tandem(const char *);
304 void tipabort(const char *);
305 void tipout(void);
306 int ttysetup(int);
307 void unraw(void);
308 void user_uid(void);
309 int uu_lock(char *);
310 int uu_unlock(char *);
311 void variable(char);
312 void vinit(void);
313 char *vinterp(char *, char);
314 void vlex(char *);
315 int vstring(const char *, char *);
316
317 void biz22_abort(void);
318 void biz22_disconnect(void);
319 int biz22f_dialer(char *, char *);
320 int biz22w_dialer(char *, char *);
321 void biz31_abort(void);
322 void biz31_disconnect(void);
323 int biz31f_dialer(char *, char *);
324 int biz31w_dialer(char *, char *);
325 void cour_abort(void);
326 int cour_dialer(char *, char *);
327 void cour_disconnect(void);
328 int df02_dialer(char *, char *);
329 int df03_dialer(char *, char *);
330 void df_abort(void);
331 void df_disconnect(void);
332 void dn_abort(void);
333 int dn_dialer(char *, char *);
334 void dn_disconnect(void);
335 void hay_abort(void);
336 int hay_dialer(char *, char *);
337 void hay_disconnect(void);
338 void t3000_abort(void);
339 int t3000_dialer(char *, char *);
340 void t3000_disconnect(void);
341 void v3451_abort(void);
342 int v3451_dialer(char *, char *);
343 void v3451_disconnect(void);
344 void v831_abort(void);
345 int v831_dialer(char *, char *);
346 void v831_disconnect(void);
347 void ven_abort(void);
348 int ven_dialer(char *, char *);
349 void ven_disconnect(void);
350
351 #ifndef ACULOG
352 #define logent(a, b, c, d)
353 #define loginit(a)
354 #endif
355