Commit | Line | Data |
---|---|---|
d8feebc2 | 1 | /* tip.c 4.9 81/11/20 */ |
5f50159a BJ |
2 | /* |
3 | * tip - Unix link to other systems | |
4 | * tip [-v] [-speed] system-name | |
5 | * | |
6 | * Uses remote file for system descriptions. | |
7 | * Current commands (escapes): | |
8 | * | |
9 | * ~! fork a shell on the local machine | |
10 | * ~c change working directory on local machine | |
11 | * ~^D exit tip | |
12 | * ~< fetch file from remote system | |
13 | * ~> send file to remote system | |
14 | * ~t take a file from a remote UNIX (uses cat & echo) | |
15 | * ~p send a file to a remote UNIX (uses cat) | |
16 | * ~| fetch file from remote system and pipe it to | |
17 | * a local process | |
18 | * ~% fork and wait for a program which inherits file | |
19 | * descriptors 3 & 4 attached to the remote machine | |
20 | * (optional by CONNECT define) | |
21 | * ~s set or show variable | |
22 | * ~? give a help summary | |
23 | * | |
24 | * Samuel J. Leffler 1-18-81 | |
25 | * | |
26 | * sjl 2-11-81 | |
27 | * add auto-dial stuff for the BIZCOMP | |
28 | * | |
29 | * sjl 2-14-81 | |
30 | * cleaned up auto-dialer stuff and added variables | |
31 | * | |
32 | * sjl 2-19-81 | |
33 | * handle quit and interrupt during calls | |
34 | * | |
35 | * sjl 3-8-81 | |
36 | * made to pass lint | |
37 | * | |
38 | * sjl 4-11-81 | |
39 | * mods to handle both FIOCAPACITY and FIONREAD in biz.c | |
40 | * | |
41 | * sjl 4-17-81 | |
42 | * added take and put, made piping stuff work | |
43 | * honor uucp locks | |
44 | * rewrite remote file stuff for DN-11 like acu's and just to clean | |
45 | * it up | |
f0211bf2 SL |
46 | * |
47 | * sjl 6-16-81 | |
48 | * real working setup for DN-11's | |
5f50159a BJ |
49 | */ |
50 | ||
51 | #include "tip.h" | |
52 | ||
53 | /* | |
54 | * Baud rate mapping table | |
55 | */ | |
56 | int bauds[] = { | |
57 | 0, 50, 75, 110, 134, 150, 200, 300, 600, | |
58 | 1200, 1800, 2400, 4800, 9600, 19200, -1 | |
59 | }; | |
60 | ||
4b675d70 SL |
61 | #ifdef VMUNIX |
62 | int disc = OTTYDISC; /* tip normally runs this way */ | |
63 | #endif | |
64 | ||
5f50159a BJ |
65 | int intprompt(); |
66 | int timeout(); | |
67 | static int cleanup(); | |
68 | ||
69 | main(argc, argv) | |
d8feebc2 | 70 | char *argv[]; |
5f50159a BJ |
71 | { |
72 | char *system = NOSTR; | |
73 | register int i; | |
5f50159a BJ |
74 | char *p; |
75 | ||
76 | if (argc > 4) { | |
77 | fprintf(stderr, "usage: tip [-v] [-speed] [system-name]\n"); | |
78 | exit(1); | |
79 | } | |
80 | if (!isatty(0)) { | |
81 | fprintf(stderr, "tip: must be interactive\n"); | |
82 | exit(1); | |
83 | } | |
84 | if (argc > 1 && argv[argc-1][0] != '-') | |
85 | system = argv[argc-1]; /* always last item */ | |
86 | signal(SIGINT, cleanup); | |
87 | signal(SIGQUIT, cleanup); | |
88 | signal(SIGHUP, cleanup); | |
89 | signal(SIGTERM, cleanup); | |
f0211bf2 | 90 | |
5f50159a BJ |
91 | if ((i = hunt(system)) == 0) { |
92 | printf("all ports busy\n"); | |
93 | exit(3); | |
94 | } | |
95 | if (i == -1) { | |
96 | printf("link down\n"); | |
1603e05e | 97 | delock(uucplock); |
5f50159a BJ |
98 | exit(3); |
99 | } | |
eaa86232 | 100 | setbuf(stdout, NULL); |
5f50159a BJ |
101 | loginit(); |
102 | /* | |
103 | * Now that we have the logfile and the ACU open | |
104 | * return to the real uid and gid. These things will | |
105 | * be closed on exit. Note that we can't run as root, | |
106 | * because locking mechanism on the tty and the accounting | |
107 | * will be bypassed. | |
108 | */ | |
109 | setuid(getuid()); | |
110 | setgid(getgid()); | |
111 | for (i = 1; i < argc-1; i++) | |
112 | if (equal(argv[i], "-v")) | |
113 | vflag++; | |
114 | /* | |
115 | * Kludge, their's no easy way to get the initialization | |
116 | * in the right order, so force it here | |
117 | */ | |
118 | if ((PH = getenv("PHONES")) == NOSTR) | |
119 | PH = "/etc/phones"; | |
120 | vinit(); /* init variables */ | |
121 | for (i = 1; i < argc-1; i++) | |
122 | if (argv[i][0] == '-' && argv[i][1] != 'v') { | |
123 | if (isnum(argv[i][1])) | |
124 | number(value(BAUDRATE)) = atoi(&argv[i][1]); | |
125 | else | |
126 | printf("%s: unknown option\n", argv[i]); | |
127 | } | |
4b675d70 | 128 | if ((i = speed(number(value(BAUDRATE)))) == NULL) { |
5f50159a BJ |
129 | printf("tip: bad baud rate %d\n", number(value(BAUDRATE))); |
130 | delock(uucplock); | |
131 | exit(3); | |
132 | } | |
f0211bf2 | 133 | |
4b675d70 SL |
134 | /* |
135 | * Hardwired connections require the | |
136 | * line speed set before they make any transmissions | |
137 | * (this is particularly true of things like a DF03-AC) | |
138 | */ | |
139 | if (HW) | |
140 | ttysetup(i); | |
f0211bf2 SL |
141 | if (p = connect()) { |
142 | printf("\07%s\n[EOT]\n", p); | |
143 | delock(uucplock); | |
144 | exit(1); | |
145 | } | |
4b675d70 SL |
146 | if (!HW) |
147 | ttysetup(i); | |
148 | ||
5f50159a | 149 | /* |
4b675d70 | 150 | * Set up local tty state |
5f50159a | 151 | */ |
4b675d70 SL |
152 | ioctl(0, TIOCGETP, (char *)&defarg); |
153 | ioctl(0, TIOCGETC, (char *)&defchars); | |
5d1f1475 | 154 | #ifdef VMUNIX |
4b675d70 | 155 | ioctl(0, TIOCGETD, (char *)&odisc); |
5d1f1475 | 156 | #endif |
5f50159a BJ |
157 | arg = defarg; |
158 | arg.sg_flags = ANYP | CBREAK; | |
159 | tchars = defchars; | |
160 | tchars.t_intrc = tchars.t_quitc = -1; | |
5f50159a | 161 | raw(); |
4b675d70 | 162 | |
5f50159a BJ |
163 | pipe(fildes); pipe(repdes); |
164 | signal(SIGALRM, timeout); | |
f0211bf2 SL |
165 | |
166 | /* | |
167 | * Everything's set up now: | |
168 | * connection established (hardwired or diaulup) | |
169 | * line conditioned (baud rate, mode, etc.) | |
170 | * internal data structures (variables) | |
171 | * so, fork one process for local side and one for remote. | |
172 | */ | |
173 | write(1, "\07connected\r\n", 12); | |
5f50159a BJ |
174 | if (pid = fork()) |
175 | tipin(); | |
176 | else | |
177 | tipout(); | |
178 | /*NOTREACHED*/ | |
179 | } | |
180 | ||
181 | static | |
182 | cleanup() | |
183 | { | |
184 | delock(uucplock); | |
f0211bf2 SL |
185 | #ifdef VMUNIX |
186 | if (odisc) | |
187 | ioctl(0, TIOCSETD, (char *)&odisc); | |
188 | #endif | |
5f50159a BJ |
189 | exit(0); |
190 | } | |
191 | ||
192 | /* | |
193 | * put the controlling keyboard into raw mode | |
194 | */ | |
195 | raw() | |
196 | { | |
197 | ioctl(0, TIOCSETP, &arg); | |
198 | ioctl(0, TIOCSETC, &tchars); | |
4b675d70 SL |
199 | #ifdef VMUNIX |
200 | ioctl(0, TIOCSETD, (char *)&disc); | |
201 | #endif | |
5f50159a BJ |
202 | } |
203 | ||
204 | ||
205 | /* | |
206 | * return keyboard to normal mode | |
207 | */ | |
208 | unraw() | |
209 | { | |
4b675d70 SL |
210 | #ifdef VMUNIX |
211 | ioctl(0, TIOCSETD, (char *)&odisc); | |
212 | #endif | |
213 | ioctl(0, TIOCSETP, (char *)&defarg); | |
214 | ioctl(0, TIOCSETC, (char *)&defchars); | |
5f50159a BJ |
215 | } |
216 | ||
217 | /* | |
218 | * Print string ``s'', then read a string | |
219 | * in from the terminal. Handles signals & allows use of | |
220 | * normal erase and kill characters. | |
221 | */ | |
222 | prompt(s, p) | |
223 | char *s; | |
224 | register char *p; | |
225 | { | |
226 | register char *b = p; | |
227 | ||
228 | stoprompt = 0; | |
229 | signal(SIGINT, intprompt); | |
230 | signal(SIGQUIT, SIG_IGN); | |
231 | unraw(); | |
232 | printf("%s", s); | |
233 | while ((*p = getchar()) != EOF && *p != '\n') { | |
234 | if (stoprompt) | |
235 | goto pbreak; | |
236 | p++; | |
237 | } | |
238 | *p = '\0'; | |
239 | pbreak: | |
240 | raw(); | |
241 | signal(SIGINT, SIG_DFL); | |
242 | signal(SIGQUIT,SIG_DFL); | |
243 | return(stoprompt || p == b); | |
244 | } | |
245 | ||
246 | /* | |
247 | * Interrupt service routine during prompting | |
248 | */ | |
249 | intprompt() | |
250 | { | |
251 | signal(SIGINT, SIG_IGN); | |
252 | stoprompt = 1; | |
253 | printf("\r\n"); | |
254 | } | |
255 | ||
256 | /* | |
257 | * ****TIPIN TIPIN**** | |
258 | */ | |
259 | tipin() | |
260 | { | |
261 | char gch, bol = 1; | |
262 | ||
388a70dc SL |
263 | /* |
264 | * Kinda klugey here... | |
265 | * check for scripting being turned on from the .tiprc file, | |
266 | * but be careful about just using setscript(), as we may | |
267 | * send a SIGEMT before tipout has a chance to set up catching | |
268 | * it; so wait a second, then setscript() | |
269 | */ | |
270 | if (boolean(value(SCRIPT))) { | |
271 | sleep(1); | |
272 | setscript(); | |
273 | } | |
274 | ||
5f50159a BJ |
275 | while (1) { |
276 | gch = getchar()&0177; | |
277 | if ((gch == character(value(ESCAPE))) && bol) { | |
278 | if (!(gch = escape())) | |
279 | continue; | |
280 | } else if (gch == character(value(RAISECHAR))) { | |
281 | boolean(value(RAISE)) = !boolean(value(RAISE)); | |
282 | printf("%s", ctrl(character(value(RAISECHAR)))); | |
283 | continue; | |
284 | } else if (gch == '\r') { | |
285 | bol = 1; | |
286 | write(FD, &gch, 1); | |
287 | continue; | |
288 | } else if (gch == character(value(FORCE))) { | |
289 | printf("%s", ctrl(character(value(FORCE)))); | |
290 | gch = getchar()&0177; | |
291 | } | |
292 | bol = any(gch, value(EOL)); | |
293 | if (boolean(value(RAISE)) && islower(gch)) | |
294 | toupper(gch); | |
295 | write(FD, &gch, 1); | |
296 | } | |
297 | } | |
298 | ||
299 | /* | |
300 | * Escape handler -- | |
301 | * called on recognition of ``escapec'' at the beginning of a line | |
302 | */ | |
303 | escape() | |
304 | { | |
305 | register char gch; | |
306 | register esctable_t *p; | |
307 | char c = character(value(ESCAPE)); | |
308 | extern esctable_t etable[]; | |
309 | ||
310 | gch = (getchar()&0177); | |
311 | for (p = etable; p->e_char; p++) | |
312 | if (p->e_char == gch) { | |
313 | if ((p->e_flags&PRIV) && getuid()) | |
314 | continue; | |
315 | printf("%s", ctrl(c)); | |
316 | (*p->e_func)(gch); | |
317 | return(0); | |
318 | } | |
62f62be8 SL |
319 | /* ESCAPE ESCAPE forces ESCAPE */ |
320 | if (c != gch) | |
321 | write(FD, &c, 1); | |
5f50159a BJ |
322 | return(gch); |
323 | } | |
324 | ||
325 | speed(n) | |
326 | { | |
327 | register int *p; | |
328 | ||
329 | for (p = bauds; *p != -1; p++) | |
330 | if (*p == n) | |
331 | return(p-bauds); | |
332 | return(NULL); | |
333 | } | |
334 | ||
335 | any(c, p) | |
336 | register char c, *p; | |
337 | { | |
338 | while (*p) | |
339 | if (*p++ == c) | |
340 | return(1); | |
341 | return(0); | |
342 | } | |
343 | ||
344 | size(s) | |
345 | register char *s; | |
346 | { | |
347 | register int i = 0; | |
348 | ||
349 | while (*s++) i++; | |
350 | return(i); | |
351 | } | |
352 | ||
353 | char * | |
354 | interp(s) | |
355 | register char *s; | |
356 | { | |
357 | static char buf[256]; | |
358 | register char *p = buf, c, *q; | |
359 | ||
360 | while (c = *s++) { | |
361 | for (q = "\nn\rr\tt\ff\033E\bb"; *q; q++) | |
362 | if (*q++ == c) { | |
363 | *p++ = '\\'; *p++ = *q; | |
364 | goto next; | |
365 | } | |
366 | if (c < 040) { | |
367 | *p++ = '^'; *p++ = c + 'A'-1; | |
368 | } else if (c == 0177) { | |
369 | *p++ = '^'; *p++ = '?'; | |
370 | } else | |
371 | *p++ = c; | |
372 | next: | |
373 | ; | |
374 | } | |
375 | *p = '\0'; | |
376 | return(buf); | |
377 | } | |
378 | ||
379 | char * | |
380 | ctrl(c) | |
381 | char c; | |
382 | { | |
383 | static char s[3]; | |
384 | ||
385 | if (c < 040 || c == 0177) { | |
386 | s[0] = '^'; | |
387 | s[1] = c == 0177 ? '?' : c+'A'-1; | |
388 | s[2] = '\0'; | |
389 | } else { | |
390 | s[0] = c; | |
391 | s[1] = '\0'; | |
392 | } | |
393 | return(s); | |
394 | } | |
395 | ||
396 | /* | |
397 | * Help command | |
398 | */ | |
399 | help(c) | |
400 | char c; | |
401 | { | |
402 | register esctable_t *p; | |
403 | extern esctable_t etable[]; | |
404 | ||
405 | printf("%c\r\n", c); | |
406 | for (p = etable; p->e_char; p++) { | |
407 | if ((p->e_flags&PRIV) && getuid()) | |
408 | continue; | |
409 | printf("%2s", ctrl(character(value(ESCAPE)))); | |
410 | printf("%-2s %c %s\r\n", ctrl(p->e_char), | |
411 | p->e_flags&EXP ? '*': ' ', p->e_help); | |
412 | } | |
413 | } | |
4b675d70 SL |
414 | |
415 | /* | |
416 | * Set up the "remote" tty's state | |
417 | */ | |
418 | static | |
419 | ttysetup(speed) | |
420 | { | |
421 | #ifdef VMUNIX | |
422 | unsigned bits = LDECCTQ; | |
423 | #endif | |
424 | ||
425 | arg.sg_ispeed = arg.sg_ospeed = speed; | |
426 | arg.sg_flags = TANDEM|RAW; | |
427 | ioctl(FD, TIOCSETP, (char *)&arg); | |
428 | #ifdef VMUNIX | |
429 | ioctl(FD, TIOCLBIS, (char *)&bits); | |
430 | #endif | |
431 | } |