Commit | Line | Data |
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4a73c41e WJ |
1 | /* |
2 | * Copyright (c) 1983 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * 3. All advertising materials mentioning features or use of this software | |
14 | * must display the following acknowledgement: | |
15 | * This product includes software developed by the University of | |
16 | * California, Berkeley and its contributors. | |
17 | * 4. Neither the name of the University nor the names of its contributors | |
18 | * may be used to endorse or promote products derived from this software | |
19 | * without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
31 | * SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef lint | |
35 | static char sccsid[] = "@(#)cmds.c 5.15 (Berkeley) 3/4/91"; | |
36 | #endif /* not lint */ | |
37 | ||
38 | #include "tip.h" | |
39 | #include "pathnames.h" | |
40 | ||
41 | /* | |
42 | * tip | |
43 | * | |
44 | * miscellaneous commands | |
45 | */ | |
46 | ||
47 | int quant[] = { 60, 60, 24 }; | |
48 | ||
49 | char null = '\0'; | |
50 | char *sep[] = { "second", "minute", "hour" }; | |
51 | static char *argv[10]; /* argument vector for take and put */ | |
52 | ||
53 | void timeout(); /* timeout function called on alarm */ | |
54 | void stopsnd(); /* SIGINT handler during file transfers */ | |
55 | void intcopy(); /* interrupt routine for file transfers */ | |
56 | ||
57 | /* | |
58 | * FTP - remote ==> local | |
59 | * get a file from the remote host | |
60 | */ | |
61 | getfl(c) | |
62 | char c; | |
63 | { | |
64 | char buf[256], *cp, *expand(); | |
65 | ||
66 | putchar(c); | |
67 | /* | |
68 | * get the UNIX receiving file's name | |
69 | */ | |
70 | if (prompt("Local file name? ", copyname)) | |
71 | return; | |
72 | cp = expand(copyname); | |
73 | if ((sfd = creat(cp, 0666)) < 0) { | |
74 | printf("\r\n%s: cannot creat\r\n", copyname); | |
75 | return; | |
76 | } | |
77 | ||
78 | /* | |
79 | * collect parameters | |
80 | */ | |
81 | if (prompt("List command for remote system? ", buf)) { | |
82 | unlink(copyname); | |
83 | return; | |
84 | } | |
85 | transfer(buf, sfd, value(EOFREAD)); | |
86 | } | |
87 | ||
88 | /* | |
89 | * Cu-like take command | |
90 | */ | |
91 | cu_take(cc) | |
92 | char cc; | |
93 | { | |
94 | int fd, argc; | |
95 | char line[BUFSIZ], *expand(), *cp; | |
96 | ||
97 | if (prompt("[take] ", copyname)) | |
98 | return; | |
99 | if ((argc = args(copyname, argv)) < 1 || argc > 2) { | |
100 | printf("usage: <take> from [to]\r\n"); | |
101 | return; | |
102 | } | |
103 | if (argc == 1) | |
104 | argv[1] = argv[0]; | |
105 | cp = expand(argv[1]); | |
106 | if ((fd = creat(cp, 0666)) < 0) { | |
107 | printf("\r\n%s: cannot create\r\n", argv[1]); | |
108 | return; | |
109 | } | |
110 | sprintf(line, "cat %s;echo \01", argv[0]); | |
111 | transfer(line, fd, "\01"); | |
112 | } | |
113 | ||
114 | static jmp_buf intbuf; | |
115 | /* | |
116 | * Bulk transfer routine -- | |
117 | * used by getfl(), cu_take(), and pipefile() | |
118 | */ | |
119 | transfer(buf, fd, eofchars) | |
120 | char *buf, *eofchars; | |
121 | { | |
122 | register int ct; | |
123 | char c, buffer[BUFSIZ]; | |
124 | register char *p = buffer; | |
125 | register int cnt, eof; | |
126 | time_t start; | |
127 | sig_t f; | |
128 | ||
129 | pwrite(FD, buf, size(buf)); | |
130 | quit = 0; | |
131 | kill(pid, SIGIOT); | |
132 | read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */ | |
133 | ||
134 | /* | |
135 | * finish command | |
136 | */ | |
137 | pwrite(FD, "\r", 1); | |
138 | do | |
139 | read(FD, &c, 1); | |
140 | while ((c&0177) != '\n'); | |
141 | ioctl(0, TIOCSETC, &defchars); | |
142 | ||
143 | (void) setjmp(intbuf); | |
144 | f = signal(SIGINT, intcopy); | |
145 | start = time(0); | |
146 | for (ct = 0; !quit;) { | |
147 | eof = read(FD, &c, 1) <= 0; | |
148 | c &= 0177; | |
149 | if (quit) | |
150 | continue; | |
151 | if (eof || any(c, eofchars)) | |
152 | break; | |
153 | if (c == 0) | |
154 | continue; /* ignore nulls */ | |
155 | if (c == '\r') | |
156 | continue; | |
157 | *p++ = c; | |
158 | ||
159 | if (c == '\n' && boolean(value(VERBOSE))) | |
160 | printf("\r%d", ++ct); | |
161 | if ((cnt = (p-buffer)) == number(value(FRAMESIZE))) { | |
162 | if (write(fd, buffer, cnt) != cnt) { | |
163 | printf("\r\nwrite error\r\n"); | |
164 | quit = 1; | |
165 | } | |
166 | p = buffer; | |
167 | } | |
168 | } | |
169 | if (cnt = (p-buffer)) | |
170 | if (write(fd, buffer, cnt) != cnt) | |
171 | printf("\r\nwrite error\r\n"); | |
172 | ||
173 | if (boolean(value(VERBOSE))) | |
174 | prtime(" lines transferred in ", time(0)-start); | |
175 | ioctl(0, TIOCSETC, &tchars); | |
176 | write(fildes[1], (char *)&ccc, 1); | |
177 | signal(SIGINT, f); | |
178 | close(fd); | |
179 | } | |
180 | ||
181 | /* | |
182 | * FTP - remote ==> local process | |
183 | * send remote input to local process via pipe | |
184 | */ | |
185 | pipefile() | |
186 | { | |
187 | int cpid, pdes[2]; | |
188 | char buf[256]; | |
189 | int status, p; | |
190 | extern int errno; | |
191 | ||
192 | if (prompt("Local command? ", buf)) | |
193 | return; | |
194 | ||
195 | if (pipe(pdes)) { | |
196 | printf("can't establish pipe\r\n"); | |
197 | return; | |
198 | } | |
199 | ||
200 | if ((cpid = fork()) < 0) { | |
201 | printf("can't fork!\r\n"); | |
202 | return; | |
203 | } else if (cpid) { | |
204 | if (prompt("List command for remote system? ", buf)) { | |
205 | close(pdes[0]), close(pdes[1]); | |
206 | kill (cpid, SIGKILL); | |
207 | } else { | |
208 | close(pdes[0]); | |
209 | signal(SIGPIPE, intcopy); | |
210 | transfer(buf, pdes[1], value(EOFREAD)); | |
211 | signal(SIGPIPE, SIG_DFL); | |
212 | while ((p = wait(&status)) > 0 && p != cpid) | |
213 | ; | |
214 | } | |
215 | } else { | |
216 | register int f; | |
217 | ||
218 | dup2(pdes[0], 0); | |
219 | close(pdes[0]); | |
220 | for (f = 3; f < 20; f++) | |
221 | close(f); | |
222 | execute(buf); | |
223 | printf("can't execl!\r\n"); | |
224 | exit(0); | |
225 | } | |
226 | } | |
227 | ||
228 | /* | |
229 | * Interrupt service routine for FTP | |
230 | */ | |
231 | void | |
232 | stopsnd() | |
233 | { | |
234 | ||
235 | stop = 1; | |
236 | signal(SIGINT, SIG_IGN); | |
237 | } | |
238 | ||
239 | /* | |
240 | * FTP - local ==> remote | |
241 | * send local file to remote host | |
242 | * terminate transmission with pseudo EOF sequence | |
243 | */ | |
244 | sendfile(cc) | |
245 | char cc; | |
246 | { | |
247 | FILE *fd; | |
248 | char *fnamex; | |
249 | char *expand(); | |
250 | ||
251 | putchar(cc); | |
252 | /* | |
253 | * get file name | |
254 | */ | |
255 | if (prompt("Local file name? ", fname)) | |
256 | return; | |
257 | ||
258 | /* | |
259 | * look up file | |
260 | */ | |
261 | fnamex = expand(fname); | |
262 | if ((fd = fopen(fnamex, "r")) == NULL) { | |
263 | printf("%s: cannot open\r\n", fname); | |
264 | return; | |
265 | } | |
266 | transmit(fd, value(EOFWRITE), NULL); | |
267 | if (!boolean(value(ECHOCHECK))) { | |
268 | struct sgttyb buf; | |
269 | ||
270 | ioctl(FD, TIOCGETP, &buf); /* this does a */ | |
271 | ioctl(FD, TIOCSETP, &buf); /* wflushtty */ | |
272 | } | |
273 | } | |
274 | ||
275 | /* | |
276 | * Bulk transfer routine to remote host -- | |
277 | * used by sendfile() and cu_put() | |
278 | */ | |
279 | transmit(fd, eofchars, command) | |
280 | FILE *fd; | |
281 | char *eofchars, *command; | |
282 | { | |
283 | char *pc, lastc; | |
284 | int c, ccount, lcount; | |
285 | time_t start_t, stop_t; | |
286 | sig_t f; | |
287 | ||
288 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ | |
289 | stop = 0; | |
290 | f = signal(SIGINT, stopsnd); | |
291 | ioctl(0, TIOCSETC, &defchars); | |
292 | read(repdes[0], (char *)&ccc, 1); | |
293 | if (command != NULL) { | |
294 | for (pc = command; *pc; pc++) | |
295 | send(*pc); | |
296 | if (boolean(value(ECHOCHECK))) | |
297 | read(FD, (char *)&c, 1); /* trailing \n */ | |
298 | else { | |
299 | struct sgttyb buf; | |
300 | ||
301 | ioctl(FD, TIOCGETP, &buf); /* this does a */ | |
302 | ioctl(FD, TIOCSETP, &buf); /* wflushtty */ | |
303 | sleep(5); /* wait for remote stty to take effect */ | |
304 | } | |
305 | } | |
306 | lcount = 0; | |
307 | lastc = '\0'; | |
308 | start_t = time(0); | |
309 | while (1) { | |
310 | ccount = 0; | |
311 | do { | |
312 | c = getc(fd); | |
313 | if (stop) | |
314 | goto out; | |
315 | if (c == EOF) | |
316 | goto out; | |
317 | if (c == 0177 && !boolean(value(RAWFTP))) | |
318 | continue; | |
319 | lastc = c; | |
320 | if (c < 040) { | |
321 | if (c == '\n') { | |
322 | if (!boolean(value(RAWFTP))) | |
323 | c = '\r'; | |
324 | } | |
325 | else if (c == '\t') { | |
326 | if (!boolean(value(RAWFTP))) { | |
327 | if (boolean(value(TABEXPAND))) { | |
328 | send(' '); | |
329 | while ((++ccount % 8) != 0) | |
330 | send(' '); | |
331 | continue; | |
332 | } | |
333 | } | |
334 | } else | |
335 | if (!boolean(value(RAWFTP))) | |
336 | continue; | |
337 | } | |
338 | send(c); | |
339 | } while (c != '\r' && !boolean(value(RAWFTP))); | |
340 | if (boolean(value(VERBOSE))) | |
341 | printf("\r%d", ++lcount); | |
342 | if (boolean(value(ECHOCHECK))) { | |
343 | timedout = 0; | |
344 | alarm((int)value(ETIMEOUT)); | |
345 | do { /* wait for prompt */ | |
346 | read(FD, (char *)&c, 1); | |
347 | if (timedout || stop) { | |
348 | if (timedout) | |
349 | printf("\r\ntimed out at eol\r\n"); | |
350 | alarm(0); | |
351 | goto out; | |
352 | } | |
353 | } while ((c&0177) != character(value(PROMPT))); | |
354 | alarm(0); | |
355 | } | |
356 | } | |
357 | out: | |
358 | if (lastc != '\n' && !boolean(value(RAWFTP))) | |
359 | send('\r'); | |
360 | for (pc = eofchars; *pc; pc++) | |
361 | send(*pc); | |
362 | stop_t = time(0); | |
363 | fclose(fd); | |
364 | signal(SIGINT, f); | |
365 | if (boolean(value(VERBOSE))) | |
366 | if (boolean(value(RAWFTP))) | |
367 | prtime(" chars transferred in ", stop_t-start_t); | |
368 | else | |
369 | prtime(" lines transferred in ", stop_t-start_t); | |
370 | write(fildes[1], (char *)&ccc, 1); | |
371 | ioctl(0, TIOCSETC, &tchars); | |
372 | } | |
373 | ||
374 | /* | |
375 | * Cu-like put command | |
376 | */ | |
377 | cu_put(cc) | |
378 | char cc; | |
379 | { | |
380 | FILE *fd; | |
381 | char line[BUFSIZ]; | |
382 | int argc; | |
383 | char *expand(); | |
384 | char *copynamex; | |
385 | ||
386 | if (prompt("[put] ", copyname)) | |
387 | return; | |
388 | if ((argc = args(copyname, argv)) < 1 || argc > 2) { | |
389 | printf("usage: <put> from [to]\r\n"); | |
390 | return; | |
391 | } | |
392 | if (argc == 1) | |
393 | argv[1] = argv[0]; | |
394 | copynamex = expand(argv[0]); | |
395 | if ((fd = fopen(copynamex, "r")) == NULL) { | |
396 | printf("%s: cannot open\r\n", copynamex); | |
397 | return; | |
398 | } | |
399 | if (boolean(value(ECHOCHECK))) | |
400 | sprintf(line, "cat>%s\r", argv[1]); | |
401 | else | |
402 | sprintf(line, "stty -echo;cat>%s;stty echo\r", argv[1]); | |
403 | transmit(fd, "\04", line); | |
404 | } | |
405 | ||
406 | /* | |
407 | * FTP - send single character | |
408 | * wait for echo & handle timeout | |
409 | */ | |
410 | send(c) | |
411 | char c; | |
412 | { | |
413 | char cc; | |
414 | int retry = 0; | |
415 | ||
416 | cc = c; | |
417 | pwrite(FD, &cc, 1); | |
418 | #ifdef notdef | |
419 | if (number(value(CDELAY)) > 0 && c != '\r') | |
420 | nap(number(value(CDELAY))); | |
421 | #endif | |
422 | if (!boolean(value(ECHOCHECK))) { | |
423 | #ifdef notdef | |
424 | if (number(value(LDELAY)) > 0 && c == '\r') | |
425 | nap(number(value(LDELAY))); | |
426 | #endif | |
427 | return; | |
428 | } | |
429 | tryagain: | |
430 | timedout = 0; | |
431 | alarm((int)value(ETIMEOUT)); | |
432 | read(FD, &cc, 1); | |
433 | alarm(0); | |
434 | if (timedout) { | |
435 | printf("\r\ntimeout error (%s)\r\n", ctrl(c)); | |
436 | if (retry++ > 3) | |
437 | return; | |
438 | pwrite(FD, &null, 1); /* poke it */ | |
439 | goto tryagain; | |
440 | } | |
441 | } | |
442 | ||
443 | void | |
444 | timeout() | |
445 | { | |
446 | signal(SIGALRM, timeout); | |
447 | timedout = 1; | |
448 | } | |
449 | ||
450 | /* | |
451 | * Stolen from consh() -- puts a remote file on the output of a local command. | |
452 | * Identical to consh() except for where stdout goes. | |
453 | */ | |
454 | pipeout(c) | |
455 | { | |
456 | char buf[256]; | |
457 | int cpid, status, p; | |
458 | time_t start; | |
459 | ||
460 | putchar(c); | |
461 | if (prompt("Local command? ", buf)) | |
462 | return; | |
463 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ | |
464 | signal(SIGINT, SIG_IGN); | |
465 | signal(SIGQUIT, SIG_IGN); | |
466 | ioctl(0, TIOCSETC, &defchars); | |
467 | read(repdes[0], (char *)&ccc, 1); | |
468 | /* | |
469 | * Set up file descriptors in the child and | |
470 | * let it go... | |
471 | */ | |
472 | if ((cpid = fork()) < 0) | |
473 | printf("can't fork!\r\n"); | |
474 | else if (cpid) { | |
475 | start = time(0); | |
476 | while ((p = wait(&status)) > 0 && p != cpid) | |
477 | ; | |
478 | } else { | |
479 | register int i; | |
480 | ||
481 | dup2(FD, 1); | |
482 | for (i = 3; i < 20; i++) | |
483 | close(i); | |
484 | signal(SIGINT, SIG_DFL); | |
485 | signal(SIGQUIT, SIG_DFL); | |
486 | execute(buf); | |
487 | printf("can't find `%s'\r\n", buf); | |
488 | exit(0); | |
489 | } | |
490 | if (boolean(value(VERBOSE))) | |
491 | prtime("away for ", time(0)-start); | |
492 | write(fildes[1], (char *)&ccc, 1); | |
493 | ioctl(0, TIOCSETC, &tchars); | |
494 | signal(SIGINT, SIG_DFL); | |
495 | signal(SIGQUIT, SIG_DFL); | |
496 | } | |
497 | ||
498 | #ifdef CONNECT | |
499 | /* | |
500 | * Fork a program with: | |
501 | * 0 <-> remote tty in | |
502 | * 1 <-> remote tty out | |
503 | * 2 <-> local tty out | |
504 | */ | |
505 | consh(c) | |
506 | { | |
507 | char buf[256]; | |
508 | int cpid, status, p; | |
509 | time_t start; | |
510 | ||
511 | putchar(c); | |
512 | if (prompt("Local command? ", buf)) | |
513 | return; | |
514 | kill(pid, SIGIOT); /* put TIPOUT into a wait state */ | |
515 | signal(SIGINT, SIG_IGN); | |
516 | signal(SIGQUIT, SIG_IGN); | |
517 | ioctl(0, TIOCSETC, &defchars); | |
518 | read(repdes[0], (char *)&ccc, 1); | |
519 | /* | |
520 | * Set up file descriptors in the child and | |
521 | * let it go... | |
522 | */ | |
523 | if ((cpid = fork()) < 0) | |
524 | printf("can't fork!\r\n"); | |
525 | else if (cpid) { | |
526 | start = time(0); | |
527 | while ((p = wait(&status)) > 0 && p != cpid) | |
528 | ; | |
529 | } else { | |
530 | register int i; | |
531 | ||
532 | dup2(1, 2); | |
533 | dup2(FD, 0); | |
534 | dup2(0, 1); | |
535 | for (i = 3; i < 20; i++) | |
536 | close(i); | |
537 | signal(SIGINT, SIG_DFL); | |
538 | signal(SIGQUIT, SIG_DFL); | |
539 | execute(buf); | |
540 | printf("can't find `%s'\r\n", buf); | |
541 | exit(0); | |
542 | } | |
543 | if (boolean(value(VERBOSE))) | |
544 | prtime("away for ", time(0)-start); | |
545 | write(fildes[1], (char *)&ccc, 1); | |
546 | ioctl(0, TIOCSETC, &tchars); | |
547 | signal(SIGINT, SIG_DFL); | |
548 | signal(SIGQUIT, SIG_DFL); | |
549 | } | |
550 | #endif | |
551 | ||
552 | /* | |
553 | * Escape to local shell | |
554 | */ | |
555 | shell() | |
556 | { | |
557 | int shpid, status; | |
558 | extern char **environ; | |
559 | char *cp; | |
560 | ||
561 | printf("[sh]\r\n"); | |
562 | signal(SIGINT, SIG_IGN); | |
563 | signal(SIGQUIT, SIG_IGN); | |
564 | unraw(); | |
565 | if (shpid = fork()) { | |
566 | while (shpid != wait(&status)); | |
567 | raw(); | |
568 | printf("\r\n!\r\n"); | |
569 | signal(SIGINT, SIG_DFL); | |
570 | signal(SIGQUIT, SIG_DFL); | |
571 | return; | |
572 | } else { | |
573 | signal(SIGQUIT, SIG_DFL); | |
574 | signal(SIGINT, SIG_DFL); | |
575 | if ((cp = rindex(value(SHELL), '/')) == NULL) | |
576 | cp = value(SHELL); | |
577 | else | |
578 | cp++; | |
579 | shell_uid(); | |
580 | execl(value(SHELL), cp, 0); | |
581 | printf("\r\ncan't execl!\r\n"); | |
582 | exit(1); | |
583 | } | |
584 | } | |
585 | ||
586 | /* | |
587 | * TIPIN portion of scripting | |
588 | * initiate the conversation with TIPOUT | |
589 | */ | |
590 | setscript() | |
591 | { | |
592 | char c; | |
593 | /* | |
594 | * enable TIPOUT side for dialogue | |
595 | */ | |
596 | kill(pid, SIGEMT); | |
597 | if (boolean(value(SCRIPT))) | |
598 | write(fildes[1], value(RECORD), size(value(RECORD))); | |
599 | write(fildes[1], "\n", 1); | |
600 | /* | |
601 | * wait for TIPOUT to finish | |
602 | */ | |
603 | read(repdes[0], &c, 1); | |
604 | if (c == 'n') | |
605 | printf("can't create %s\r\n", value(RECORD)); | |
606 | } | |
607 | ||
608 | /* | |
609 | * Change current working directory of | |
610 | * local portion of tip | |
611 | */ | |
612 | chdirectory() | |
613 | { | |
614 | char dirname[80]; | |
615 | register char *cp = dirname; | |
616 | ||
617 | if (prompt("[cd] ", dirname)) { | |
618 | if (stoprompt) | |
619 | return; | |
620 | cp = value(HOME); | |
621 | } | |
622 | if (chdir(cp) < 0) | |
623 | printf("%s: bad directory\r\n", cp); | |
624 | printf("!\r\n"); | |
625 | } | |
626 | ||
627 | tipabort(msg) | |
628 | char *msg; | |
629 | { | |
630 | ||
631 | kill(pid, SIGTERM); | |
632 | disconnect(msg); | |
633 | if (msg != NOSTR) | |
634 | printf("\r\n%s", msg); | |
635 | printf("\r\n[EOT]\r\n"); | |
636 | daemon_uid(); | |
637 | (void)uu_unlock(uucplock); | |
638 | unraw(); | |
639 | exit(0); | |
640 | } | |
641 | ||
642 | finish() | |
643 | { | |
644 | char *dismsg; | |
645 | ||
646 | if ((dismsg = value(DISCONNECT)) != NOSTR) { | |
647 | write(FD, dismsg, strlen(dismsg)); | |
648 | sleep(5); | |
649 | } | |
650 | tipabort(NOSTR); | |
651 | } | |
652 | ||
653 | void | |
654 | intcopy() | |
655 | { | |
656 | raw(); | |
657 | quit = 1; | |
658 | longjmp(intbuf, 1); | |
659 | } | |
660 | ||
661 | execute(s) | |
662 | char *s; | |
663 | { | |
664 | register char *cp; | |
665 | ||
666 | if ((cp = rindex(value(SHELL), '/')) == NULL) | |
667 | cp = value(SHELL); | |
668 | else | |
669 | cp++; | |
670 | shell_uid(); | |
671 | execl(value(SHELL), cp, "-c", s, 0); | |
672 | } | |
673 | ||
674 | args(buf, a) | |
675 | char *buf, *a[]; | |
676 | { | |
677 | register char *p = buf, *start; | |
678 | register char **parg = a; | |
679 | register int n = 0; | |
680 | ||
681 | do { | |
682 | while (*p && (*p == ' ' || *p == '\t')) | |
683 | p++; | |
684 | start = p; | |
685 | if (*p) | |
686 | *parg = p; | |
687 | while (*p && (*p != ' ' && *p != '\t')) | |
688 | p++; | |
689 | if (p != start) | |
690 | parg++, n++; | |
691 | if (*p) | |
692 | *p++ = '\0'; | |
693 | } while (*p); | |
694 | ||
695 | return(n); | |
696 | } | |
697 | ||
698 | prtime(s, a) | |
699 | char *s; | |
700 | time_t a; | |
701 | { | |
702 | register i; | |
703 | int nums[3]; | |
704 | ||
705 | for (i = 0; i < 3; i++) { | |
706 | nums[i] = (int)(a % quant[i]); | |
707 | a /= quant[i]; | |
708 | } | |
709 | printf("%s", s); | |
710 | while (--i >= 0) | |
711 | if (nums[i] || i == 0 && nums[1] == 0 && nums[2] == 0) | |
712 | printf("%d %s%c ", nums[i], sep[i], | |
713 | nums[i] == 1 ? '\0' : 's'); | |
714 | printf("\r\n!\r\n"); | |
715 | } | |
716 | ||
717 | variable() | |
718 | { | |
719 | char buf[256]; | |
720 | ||
721 | if (prompt("[set] ", buf)) | |
722 | return; | |
723 | vlex(buf); | |
724 | if (vtable[BEAUTIFY].v_access&CHANGED) { | |
725 | vtable[BEAUTIFY].v_access &= ~CHANGED; | |
726 | kill(pid, SIGSYS); | |
727 | } | |
728 | if (vtable[SCRIPT].v_access&CHANGED) { | |
729 | vtable[SCRIPT].v_access &= ~CHANGED; | |
730 | setscript(); | |
731 | /* | |
732 | * So that "set record=blah script" doesn't | |
733 | * cause two transactions to occur. | |
734 | */ | |
735 | if (vtable[RECORD].v_access&CHANGED) | |
736 | vtable[RECORD].v_access &= ~CHANGED; | |
737 | } | |
738 | if (vtable[RECORD].v_access&CHANGED) { | |
739 | vtable[RECORD].v_access &= ~CHANGED; | |
740 | if (boolean(value(SCRIPT))) | |
741 | setscript(); | |
742 | } | |
743 | if (vtable[TAND].v_access&CHANGED) { | |
744 | vtable[TAND].v_access &= ~CHANGED; | |
745 | if (boolean(value(TAND))) | |
746 | tandem("on"); | |
747 | else | |
748 | tandem("off"); | |
749 | } | |
750 | if (vtable[LECHO].v_access&CHANGED) { | |
751 | vtable[LECHO].v_access &= ~CHANGED; | |
752 | HD = boolean(value(LECHO)); | |
753 | } | |
754 | if (vtable[PARITY].v_access&CHANGED) { | |
755 | vtable[PARITY].v_access &= ~CHANGED; | |
756 | setparity(); | |
757 | } | |
758 | } | |
759 | ||
760 | /* | |
761 | * Turn tandem mode on or off for remote tty. | |
762 | */ | |
763 | tandem(option) | |
764 | char *option; | |
765 | { | |
766 | struct sgttyb rmtty; | |
767 | ||
768 | ioctl(FD, TIOCGETP, &rmtty); | |
769 | if (strcmp(option,"on") == 0) { | |
770 | rmtty.sg_flags |= TANDEM; | |
771 | arg.sg_flags |= TANDEM; | |
772 | } else { | |
773 | rmtty.sg_flags &= ~TANDEM; | |
774 | arg.sg_flags &= ~TANDEM; | |
775 | } | |
776 | ioctl(FD, TIOCSETP, &rmtty); | |
777 | ioctl(0, TIOCSETP, &arg); | |
778 | } | |
779 | ||
780 | /* | |
781 | * Send a break. | |
782 | */ | |
783 | genbrk() | |
784 | { | |
785 | ||
786 | ioctl(FD, TIOCSBRK, NULL); | |
787 | sleep(1); | |
788 | ioctl(FD, TIOCCBRK, NULL); | |
789 | } | |
790 | ||
791 | /* | |
792 | * Suspend tip | |
793 | */ | |
794 | suspend(c) | |
795 | char c; | |
796 | { | |
797 | ||
798 | unraw(); | |
799 | kill(c == CTRL('y') ? getpid() : 0, SIGTSTP); | |
800 | raw(); | |
801 | } | |
802 | ||
803 | /* | |
804 | * expand a file name if it includes shell meta characters | |
805 | */ | |
806 | ||
807 | char * | |
808 | expand(name) | |
809 | char name[]; | |
810 | { | |
811 | static char xname[BUFSIZ]; | |
812 | char cmdbuf[BUFSIZ]; | |
813 | register int pid, l, rc; | |
814 | register char *cp, *Shell; | |
815 | int s, pivec[2], (*sigint)(); | |
816 | ||
817 | if (!anyof(name, "~{[*?$`'\"\\")) | |
818 | return(name); | |
819 | /* sigint = signal(SIGINT, SIG_IGN); */ | |
820 | if (pipe(pivec) < 0) { | |
821 | perror("pipe"); | |
822 | /* signal(SIGINT, sigint) */ | |
823 | return(name); | |
824 | } | |
825 | sprintf(cmdbuf, "echo %s", name); | |
826 | if ((pid = vfork()) == 0) { | |
827 | Shell = value(SHELL); | |
828 | if (Shell == NOSTR) | |
829 | Shell = _PATH_BSHELL; | |
830 | close(pivec[0]); | |
831 | close(1); | |
832 | dup(pivec[1]); | |
833 | close(pivec[1]); | |
834 | close(2); | |
835 | shell_uid(); | |
836 | execl(Shell, Shell, "-c", cmdbuf, 0); | |
837 | _exit(1); | |
838 | } | |
839 | if (pid == -1) { | |
840 | perror("fork"); | |
841 | close(pivec[0]); | |
842 | close(pivec[1]); | |
843 | return(NOSTR); | |
844 | } | |
845 | close(pivec[1]); | |
846 | l = read(pivec[0], xname, BUFSIZ); | |
847 | close(pivec[0]); | |
848 | while (wait(&s) != pid); | |
849 | ; | |
850 | s &= 0377; | |
851 | if (s != 0 && s != SIGPIPE) { | |
852 | fprintf(stderr, "\"Echo\" failed\n"); | |
853 | return(NOSTR); | |
854 | } | |
855 | if (l < 0) { | |
856 | perror("read"); | |
857 | return(NOSTR); | |
858 | } | |
859 | if (l == 0) { | |
860 | fprintf(stderr, "\"%s\": No match\n", name); | |
861 | return(NOSTR); | |
862 | } | |
863 | if (l == BUFSIZ) { | |
864 | fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name); | |
865 | return(NOSTR); | |
866 | } | |
867 | xname[l] = 0; | |
868 | for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--) | |
869 | ; | |
870 | *++cp = '\0'; | |
871 | return(xname); | |
872 | } | |
873 | ||
874 | /* | |
875 | * Are any of the characters in the two strings the same? | |
876 | */ | |
877 | ||
878 | anyof(s1, s2) | |
879 | register char *s1, *s2; | |
880 | { | |
881 | register int c; | |
882 | ||
883 | while (c = *s1++) | |
884 | if (any(c, s2)) | |
885 | return(1); | |
886 | return(0); | |
887 | } |