Annotation of src/usr.bin/tip/cmds.c, Revision 1.20
1.20 ! otto 1: /* $OpenBSD: cmds.c,v 1.19 2004/05/26 18:17:58 deraadt Exp $ */
1.5 millert 2: /* $NetBSD: cmds.c,v 1.7 1997/02/11 09:24:03 mrg Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 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.
1.16 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: */
32:
33: #ifndef lint
34: #if 0
35: static char sccsid[] = "@(#)cmds.c 8.1 (Berkeley) 6/6/93";
36: #endif
1.20 ! otto 37: static const char rcsid[] = "$OpenBSD: cmds.c,v 1.19 2004/05/26 18:17:58 deraadt Exp $";
1.1 deraadt 38: #endif /* not lint */
39:
40: #include "tip.h"
41: #include "pathnames.h"
42:
1.11 millert 43: #include <vis.h>
44:
1.1 deraadt 45: /*
46: * tip
47: *
48: * miscellaneous commands
49: */
50:
51: int quant[] = { 60, 60, 24 };
52:
53: char null = '\0';
54: char *sep[] = { "second", "minute", "hour" };
55: static char *argv[10]; /* argument vector for take and put */
56:
57: void timeout(); /* timeout function called on alarm */
58: void stopsnd(); /* SIGINT handler during file transfers */
59: void intcopy(); /* interrupt routine for file transfers */
60:
61: /*
62: * FTP - remote ==> local
63: * get a file from the remote host
64: */
1.7 deraadt 65: void
1.19 deraadt 66: getfl(char c)
1.1 deraadt 67: {
68: char buf[256], *cp, *expand();
69:
70: putchar(c);
71: /*
72: * get the UNIX receiving file's name
73: */
1.6 millert 74: if (prompt("Local file name? ", copyname, sizeof(copyname)))
1.1 deraadt 75: return;
76: cp = expand(copyname);
77: if ((sfd = creat(cp, 0666)) < 0) {
78: printf("\r\n%s: cannot creat\r\n", copyname);
79: return;
80: }
81:
82: /*
83: * collect parameters
84: */
1.6 millert 85: if (prompt("List command for remote system? ", buf, sizeof(buf))) {
1.1 deraadt 86: unlink(copyname);
87: return;
88: }
89: transfer(buf, sfd, value(EOFREAD));
90: }
91:
92: /*
93: * Cu-like take command
94: */
1.7 deraadt 95: void
1.19 deraadt 96: cu_take(char cc)
1.1 deraadt 97: {
98: int fd, argc;
99: char line[BUFSIZ], *expand(), *cp;
100:
1.6 millert 101: if (prompt("[take] ", copyname, sizeof(copyname)))
1.1 deraadt 102: return;
1.7 deraadt 103: if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
104: argc > 2) {
1.1 deraadt 105: printf("usage: <take> from [to]\r\n");
106: return;
107: }
108: if (argc == 1)
109: argv[1] = argv[0];
110: cp = expand(argv[1]);
111: if ((fd = creat(cp, 0666)) < 0) {
112: printf("\r\n%s: cannot create\r\n", argv[1]);
113: return;
114: }
1.5 millert 115: (void)snprintf(line, sizeof(line), "cat %s;echo \01", argv[0]);
1.1 deraadt 116: transfer(line, fd, "\01");
117: }
118:
119: static jmp_buf intbuf;
1.7 deraadt 120:
1.1 deraadt 121: /*
122: * Bulk transfer routine --
123: * used by getfl(), cu_take(), and pipefile()
124: */
1.7 deraadt 125: void
1.1 deraadt 126: transfer(buf, fd, eofchars)
127: char *buf, *eofchars;
1.7 deraadt 128: int fd;
1.1 deraadt 129: {
1.13 millert 130: int ct;
1.1 deraadt 131: char c, buffer[BUFSIZ];
1.7 deraadt 132: char *p = buffer;
1.13 millert 133: int cnt, eof;
1.1 deraadt 134: time_t start;
135: sig_t f;
136: char r;
137:
1.8 deraadt 138: parwrite(FD, buf, size(buf));
1.1 deraadt 139: quit = 0;
1.19 deraadt 140: kill(tipout_pid, SIGIOT);
1.1 deraadt 141: read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */
142:
143: /*
144: * finish command
145: */
146: r = '\r';
1.8 deraadt 147: parwrite(FD, &r, 1);
1.1 deraadt 148: do
149: read(FD, &c, 1);
1.2 deraadt 150: while ((c&STRIP_PAR) != '\n');
151: tcsetattr(0, TCSAFLUSH, &defchars);
1.1 deraadt 152:
153: (void) setjmp(intbuf);
154: f = signal(SIGINT, intcopy);
155: start = time(0);
156: for (ct = 0; !quit;) {
157: eof = read(FD, &c, 1) <= 0;
1.2 deraadt 158: c &= STRIP_PAR;
1.1 deraadt 159: if (quit)
160: continue;
161: if (eof || any(c, eofchars))
162: break;
163: if (c == 0)
164: continue; /* ignore nulls */
165: if (c == '\r')
166: continue;
167: *p++ = c;
168:
169: if (c == '\n' && boolean(value(VERBOSE)))
170: printf("\r%d", ++ct);
171: if ((cnt = (p-buffer)) == number(value(FRAMESIZE))) {
172: if (write(fd, buffer, cnt) != cnt) {
173: printf("\r\nwrite error\r\n");
174: quit = 1;
175: }
176: p = buffer;
177: }
178: }
1.7 deraadt 179: if ((cnt = (p-buffer)))
1.1 deraadt 180: if (write(fd, buffer, cnt) != cnt)
181: printf("\r\nwrite error\r\n");
182:
183: if (boolean(value(VERBOSE)))
184: prtime(" lines transferred in ", time(0)-start);
1.2 deraadt 185: tcsetattr(0, TCSAFLUSH, &term);
1.1 deraadt 186: write(fildes[1], (char *)&ccc, 1);
187: signal(SIGINT, f);
188: close(fd);
189: }
190:
191: /*
192: * FTP - remote ==> local process
193: * send remote input to local process via pipe
194: */
1.7 deraadt 195: void
1.1 deraadt 196: pipefile()
197: {
1.15 mpech 198: int pdes[2];
1.1 deraadt 199: char buf[256];
200: int status, p;
1.15 mpech 201: pid_t cpid;
1.1 deraadt 202:
1.6 millert 203: if (prompt("Local command? ", buf, sizeof(buf)))
1.1 deraadt 204: return;
205:
206: if (pipe(pdes)) {
207: printf("can't establish pipe\r\n");
208: return;
209: }
210:
211: if ((cpid = fork()) < 0) {
212: printf("can't fork!\r\n");
213: return;
214: } else if (cpid) {
1.6 millert 215: if (prompt("List command for remote system? ", buf, sizeof(buf))) {
1.1 deraadt 216: close(pdes[0]), close(pdes[1]);
217: kill (cpid, SIGKILL);
218: } else {
219: close(pdes[0]);
220: signal(SIGPIPE, intcopy);
221: transfer(buf, pdes[1], value(EOFREAD));
222: signal(SIGPIPE, SIG_DFL);
223: while ((p = wait(&status)) > 0 && p != cpid)
224: ;
225: }
226: } else {
1.13 millert 227: int f;
1.1 deraadt 228:
229: dup2(pdes[0], 0);
230: close(pdes[0]);
231: for (f = 3; f < 20; f++)
232: close(f);
233: execute(buf);
234: printf("can't execl!\r\n");
235: exit(0);
236: }
237: }
238:
239: /*
240: * Interrupt service routine for FTP
241: */
242: void
243: stopsnd()
244: {
245:
246: stop = 1;
247: signal(SIGINT, SIG_IGN);
248: }
249:
250: /*
251: * FTP - local ==> remote
252: * send local file to remote host
253: * terminate transmission with pseudo EOF sequence
254: */
1.7 deraadt 255: void
1.1 deraadt 256: sendfile(cc)
257: char cc;
258: {
259: FILE *fd;
260: char *fnamex;
261: char *expand();
262:
263: putchar(cc);
264: /*
265: * get file name
266: */
1.6 millert 267: if (prompt("Local file name? ", fname, sizeof(fname)))
1.1 deraadt 268: return;
269:
270: /*
271: * look up file
272: */
273: fnamex = expand(fname);
274: if ((fd = fopen(fnamex, "r")) == NULL) {
275: printf("%s: cannot open\r\n", fname);
276: return;
277: }
278: transmit(fd, value(EOFWRITE), NULL);
1.2 deraadt 279: if (!boolean(value(ECHOCHECK)))
280: tcdrain(FD);
1.1 deraadt 281: }
282:
283: /*
284: * Bulk transfer routine to remote host --
285: * used by sendfile() and cu_put()
286: */
1.7 deraadt 287: void
1.1 deraadt 288: transmit(fd, eofchars, command)
289: FILE *fd;
290: char *eofchars, *command;
291: {
292: char *pc, lastc;
293: int c, ccount, lcount;
294: time_t start_t, stop_t;
295: sig_t f;
296:
1.19 deraadt 297: kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
1.1 deraadt 298: stop = 0;
299: f = signal(SIGINT, stopsnd);
1.2 deraadt 300: tcsetattr(0, TCSAFLUSH, &defchars);
1.1 deraadt 301: read(repdes[0], (char *)&ccc, 1);
302: if (command != NULL) {
303: for (pc = command; *pc; pc++)
304: send(*pc);
305: if (boolean(value(ECHOCHECK)))
306: read(FD, (char *)&c, 1); /* trailing \n */
307: else {
1.2 deraadt 308: tcdrain(FD);
1.1 deraadt 309: sleep(5); /* wait for remote stty to take effect */
310: }
311: }
312: lcount = 0;
313: lastc = '\0';
314: start_t = time(0);
315: while (1) {
316: ccount = 0;
317: do {
318: c = getc(fd);
319: if (stop)
320: goto out;
321: if (c == EOF)
322: goto out;
323: if (c == 0177 && !boolean(value(RAWFTP)))
324: continue;
325: lastc = c;
326: if (c < 040) {
327: if (c == '\n') {
328: if (!boolean(value(RAWFTP)))
329: c = '\r';
330: }
331: else if (c == '\t') {
332: if (!boolean(value(RAWFTP))) {
333: if (boolean(value(TABEXPAND))) {
334: send(' ');
335: while ((++ccount % 8) != 0)
336: send(' ');
337: continue;
338: }
339: }
340: } else
341: if (!boolean(value(RAWFTP)))
342: continue;
343: }
344: send(c);
345: } while (c != '\r' && !boolean(value(RAWFTP)));
346: if (boolean(value(VERBOSE)))
347: printf("\r%d", ++lcount);
348: if (boolean(value(ECHOCHECK))) {
349: timedout = 0;
350: alarm((long)value(ETIMEOUT));
351: do { /* wait for prompt */
352: read(FD, (char *)&c, 1);
353: if (timedout || stop) {
354: if (timedout)
355: printf("\r\ntimed out at eol\r\n");
356: alarm(0);
357: goto out;
358: }
1.2 deraadt 359: } while ((c&STRIP_PAR) != character(value(PROMPT)));
1.1 deraadt 360: alarm(0);
361: }
362: }
363: out:
364: if (lastc != '\n' && !boolean(value(RAWFTP)))
365: send('\r');
366: if (eofchars) {
367: for (pc = eofchars; *pc; pc++)
368: send(*pc);
369: }
370: stop_t = time(0);
371: fclose(fd);
372: signal(SIGINT, f);
1.10 deraadt 373: if (boolean(value(VERBOSE))) {
1.1 deraadt 374: if (boolean(value(RAWFTP)))
375: prtime(" chars transferred in ", stop_t-start_t);
376: else
377: prtime(" lines transferred in ", stop_t-start_t);
1.10 deraadt 378: }
1.1 deraadt 379: write(fildes[1], (char *)&ccc, 1);
1.2 deraadt 380: tcsetattr(0, TCSAFLUSH, &term);
1.1 deraadt 381: }
382:
383: /*
384: * Cu-like put command
385: */
1.7 deraadt 386: void
1.1 deraadt 387: cu_put(cc)
388: char cc;
389: {
390: FILE *fd;
391: char line[BUFSIZ];
392: int argc;
393: char *expand();
394: char *copynamex;
395:
1.6 millert 396: if (prompt("[put] ", copyname, sizeof(copyname)))
1.1 deraadt 397: return;
1.7 deraadt 398: if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
399: argc > 2) {
1.1 deraadt 400: printf("usage: <put> from [to]\r\n");
401: return;
402: }
403: if (argc == 1)
404: argv[1] = argv[0];
405: copynamex = expand(argv[0]);
406: if ((fd = fopen(copynamex, "r")) == NULL) {
407: printf("%s: cannot open\r\n", copynamex);
408: return;
409: }
410: if (boolean(value(ECHOCHECK)))
1.5 millert 411: (void)snprintf(line, sizeof(line), "cat>%s\r", argv[1]);
1.1 deraadt 412: else
1.5 millert 413: (void)snprintf(line, sizeof(line),
414: "stty -echo;cat>%s;stty echo\r", argv[1]);
1.1 deraadt 415: transmit(fd, "\04", line);
416: }
417:
418: /*
419: * FTP - send single character
420: * wait for echo & handle timeout
421: */
1.7 deraadt 422: void
1.19 deraadt 423: send(int c)
1.1 deraadt 424: {
425: char cc;
426: int retry = 0;
427:
428: cc = c;
1.8 deraadt 429: parwrite(FD, &cc, 1);
1.1 deraadt 430: if (number(value(CDELAY)) > 0 && c != '\r')
1.18 deraadt 431: usleep(number(value(CDELAY)));
1.1 deraadt 432: if (!boolean(value(ECHOCHECK))) {
433: if (number(value(LDELAY)) > 0 && c == '\r')
1.18 deraadt 434: usleep(number(value(LDELAY)));
1.1 deraadt 435: return;
436: }
437: tryagain:
438: timedout = 0;
439: alarm((long)value(ETIMEOUT));
440: read(FD, &cc, 1);
441: alarm(0);
442: if (timedout) {
443: printf("\r\ntimeout error (%s)\r\n", ctrl(c));
444: if (retry++ > 3)
445: return;
1.8 deraadt 446: parwrite(FD, &null, 1); /* poke it */
1.1 deraadt 447: goto tryagain;
448: }
449: }
450:
451: void
452: timeout()
453: {
454: signal(SIGALRM, timeout);
455: timedout = 1;
456: }
457:
458: /*
459: * Stolen from consh() -- puts a remote file on the output of a local command.
460: * Identical to consh() except for where stdout goes.
461: */
1.7 deraadt 462: void
1.1 deraadt 463: pipeout(c)
464: {
465: char buf[256];
1.15 mpech 466: int status, p;
467: pid_t cpid;
1.7 deraadt 468: time_t start = time(NULL);
1.1 deraadt 469:
470: putchar(c);
1.6 millert 471: if (prompt("Local command? ", buf, sizeof(buf)))
1.1 deraadt 472: return;
1.19 deraadt 473: kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
1.1 deraadt 474: signal(SIGINT, SIG_IGN);
475: signal(SIGQUIT, SIG_IGN);
1.2 deraadt 476: tcsetattr(0, TCSAFLUSH, &defchars);
1.1 deraadt 477: read(repdes[0], (char *)&ccc, 1);
478: /*
479: * Set up file descriptors in the child and
480: * let it go...
481: */
482: if ((cpid = fork()) < 0)
483: printf("can't fork!\r\n");
484: else if (cpid) {
1.7 deraadt 485: start = time(NULL);
1.1 deraadt 486: while ((p = wait(&status)) > 0 && p != cpid)
487: ;
488: } else {
1.13 millert 489: int i;
1.1 deraadt 490:
491: dup2(FD, 1);
492: for (i = 3; i < 20; i++)
493: close(i);
494: signal(SIGINT, SIG_DFL);
495: signal(SIGQUIT, SIG_DFL);
496: execute(buf);
497: printf("can't find `%s'\r\n", buf);
498: exit(0);
499: }
500: if (boolean(value(VERBOSE)))
501: prtime("away for ", time(0)-start);
502: write(fildes[1], (char *)&ccc, 1);
1.2 deraadt 503: tcsetattr(0, TCSAFLUSH, &term);
1.1 deraadt 504: signal(SIGINT, SIG_DFL);
505: signal(SIGQUIT, SIG_DFL);
506: }
507:
508: #ifdef CONNECT
509: /*
510: * Fork a program with:
511: * 0 <-> remote tty in
512: * 1 <-> remote tty out
1.20 ! otto 513: * 2 <-> local tty stderr
1.1 deraadt 514: */
1.7 deraadt 515: void
1.19 deraadt 516: consh(int c)
1.1 deraadt 517: {
518: char buf[256];
1.15 mpech 519: int status, p;
520: pid_t cpid;
1.7 deraadt 521: time_t start = time(NULL);
1.1 deraadt 522:
523: putchar(c);
1.6 millert 524: if (prompt("Local command? ", buf, sizeof(buf)))
1.1 deraadt 525: return;
1.19 deraadt 526: kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
1.1 deraadt 527: signal(SIGINT, SIG_IGN);
528: signal(SIGQUIT, SIG_IGN);
1.2 deraadt 529: tcsetattr(0, TCSAFLUSH, &defchars);
1.1 deraadt 530: read(repdes[0], (char *)&ccc, 1);
531: /*
532: * Set up file descriptors in the child and
533: * let it go...
534: */
535: if ((cpid = fork()) < 0)
536: printf("can't fork!\r\n");
537: else if (cpid) {
538: start = time(0);
539: while ((p = wait(&status)) > 0 && p != cpid)
540: ;
541: } else {
1.13 millert 542: int i;
1.1 deraadt 543:
544: dup2(FD, 0);
545: dup2(3, 1);
1.20 ! otto 546: closefrom(3);
1.1 deraadt 547: signal(SIGINT, SIG_DFL);
548: signal(SIGQUIT, SIG_DFL);
549: execute(buf);
550: printf("can't find `%s'\r\n", buf);
551: exit(0);
552: }
553: if (boolean(value(VERBOSE)))
554: prtime("away for ", time(0)-start);
555: write(fildes[1], (char *)&ccc, 1);
1.2 deraadt 556: tcsetattr(0, TCSAFLUSH, &term);
1.1 deraadt 557: signal(SIGINT, SIG_DFL);
558: signal(SIGQUIT, SIG_DFL);
559: }
560: #endif
561:
562: /*
563: * Escape to local shell
564: */
1.7 deraadt 565: void
1.19 deraadt 566: shell(void)
1.1 deraadt 567: {
1.15 mpech 568: int status;
1.1 deraadt 569: char *cp;
1.15 mpech 570: pid_t shpid;
1.1 deraadt 571:
572: printf("[sh]\r\n");
573: signal(SIGINT, SIG_IGN);
574: signal(SIGQUIT, SIG_IGN);
575: unraw();
1.7 deraadt 576: if ((shpid = fork())) {
1.1 deraadt 577: while (shpid != wait(&status));
578: raw();
579: printf("\r\n!\r\n");
580: signal(SIGINT, SIG_DFL);
581: signal(SIGQUIT, SIG_DFL);
582: return;
583: } else {
584: signal(SIGQUIT, SIG_DFL);
585: signal(SIGINT, SIG_DFL);
1.4 millert 586: if ((cp = strrchr(value(SHELL), '/')) == NULL)
1.1 deraadt 587: cp = value(SHELL);
588: else
589: cp++;
590: shell_uid();
1.9 deraadt 591: execl(value(SHELL), cp, (char *)NULL);
1.1 deraadt 592: printf("\r\ncan't execl!\r\n");
593: exit(1);
594: }
595: }
596:
597: /*
598: * TIPIN portion of scripting
599: * initiate the conversation with TIPOUT
600: */
1.7 deraadt 601: void
1.1 deraadt 602: setscript()
603: {
604: char c;
605: /*
606: * enable TIPOUT side for dialogue
607: */
1.19 deraadt 608: kill(tipout_pid, SIGEMT);
1.1 deraadt 609: if (boolean(value(SCRIPT)))
610: write(fildes[1], value(RECORD), size(value(RECORD)));
611: write(fildes[1], "\n", 1);
612: /*
613: * wait for TIPOUT to finish
614: */
615: read(repdes[0], &c, 1);
616: if (c == 'n')
617: printf("can't create %s\r\n", value(RECORD));
618: }
619:
620: /*
621: * Change current working directory of
622: * local portion of tip
623: */
1.7 deraadt 624: void
1.1 deraadt 625: chdirectory()
626: {
1.6 millert 627: char dirname[PATH_MAX];
1.13 millert 628: char *cp = dirname;
1.1 deraadt 629:
1.6 millert 630: if (prompt("[cd] ", dirname, sizeof(dirname))) {
1.1 deraadt 631: if (stoprompt)
632: return;
633: cp = value(HOME);
634: }
635: if (chdir(cp) < 0)
636: printf("%s: bad directory\r\n", cp);
637: printf("!\r\n");
638: }
639:
1.7 deraadt 640: void
1.1 deraadt 641: tipabort(msg)
642: char *msg;
643: {
644:
1.19 deraadt 645: kill(tipout_pid, SIGTERM);
1.1 deraadt 646: disconnect(msg);
647: if (msg != NOSTR)
648: printf("\r\n%s", msg);
649: printf("\r\n[EOT]\r\n");
650: daemon_uid();
651: (void)uu_unlock(uucplock);
652: unraw();
653: exit(0);
654: }
655:
1.7 deraadt 656: void
1.1 deraadt 657: finish()
658: {
659: char *dismsg;
660:
661: if ((dismsg = value(DISCONNECT)) != NOSTR) {
662: write(FD, dismsg, strlen(dismsg));
663: sleep(5);
664: }
665: tipabort(NOSTR);
666: }
667:
668: void
669: intcopy()
670: {
671: raw();
672: quit = 1;
673: longjmp(intbuf, 1);
674: }
675:
1.7 deraadt 676: void
1.1 deraadt 677: execute(s)
678: char *s;
679: {
1.13 millert 680: char *cp;
1.1 deraadt 681:
1.4 millert 682: if ((cp = strrchr(value(SHELL), '/')) == NULL)
1.1 deraadt 683: cp = value(SHELL);
684: else
685: cp++;
686: shell_uid();
1.9 deraadt 687: execl(value(SHELL), cp, "-c", s, (char *)NULL);
1.1 deraadt 688: }
689:
1.7 deraadt 690: int
691: args(buf, a, num)
1.1 deraadt 692: char *buf, *a[];
1.7 deraadt 693: int num;
1.1 deraadt 694: {
1.13 millert 695: char *p = buf, *start;
696: char **parg = a;
697: int n = 0;
1.1 deraadt 698:
699: do {
700: while (*p && (*p == ' ' || *p == '\t'))
701: p++;
702: start = p;
703: if (*p)
704: *parg = p;
705: while (*p && (*p != ' ' && *p != '\t'))
706: p++;
707: if (p != start)
708: parg++, n++;
709: if (*p)
710: *p++ = '\0';
1.7 deraadt 711: } while (*p && n < num);
1.1 deraadt 712:
713: return(n);
714: }
715:
1.7 deraadt 716: void
1.1 deraadt 717: prtime(s, a)
718: char *s;
719: time_t a;
720: {
1.13 millert 721: int i;
1.1 deraadt 722: int nums[3];
723:
724: for (i = 0; i < 3; i++) {
725: nums[i] = (int)(a % quant[i]);
726: a /= quant[i];
727: }
728: printf("%s", s);
729: while (--i >= 0)
1.14 hugh 730: if (nums[i] || (i == 0 && nums[1] == 0 && nums[2] == 0))
1.1 deraadt 731: printf("%d %s%c ", nums[i], sep[i],
732: nums[i] == 1 ? '\0' : 's');
733: printf("\r\n!\r\n");
734: }
735:
1.7 deraadt 736: void
1.1 deraadt 737: variable()
738: {
739: char buf[256];
740:
1.6 millert 741: if (prompt("[set] ", buf, sizeof(buf)))
1.1 deraadt 742: return;
743: vlex(buf);
744: if (vtable[BEAUTIFY].v_access&CHANGED) {
745: vtable[BEAUTIFY].v_access &= ~CHANGED;
1.19 deraadt 746: kill(tipout_pid, SIGSYS);
1.1 deraadt 747: }
748: if (vtable[SCRIPT].v_access&CHANGED) {
749: vtable[SCRIPT].v_access &= ~CHANGED;
750: setscript();
751: /*
752: * So that "set record=blah script" doesn't
753: * cause two transactions to occur.
754: */
755: if (vtable[RECORD].v_access&CHANGED)
756: vtable[RECORD].v_access &= ~CHANGED;
757: }
758: if (vtable[RECORD].v_access&CHANGED) {
759: vtable[RECORD].v_access &= ~CHANGED;
760: if (boolean(value(SCRIPT)))
761: setscript();
762: }
763: if (vtable[TAND].v_access&CHANGED) {
764: vtable[TAND].v_access &= ~CHANGED;
765: if (boolean(value(TAND)))
766: tandem("on");
767: else
768: tandem("off");
769: }
770: if (vtable[LECHO].v_access&CHANGED) {
771: vtable[LECHO].v_access &= ~CHANGED;
772: HD = boolean(value(LECHO));
773: }
774: if (vtable[PARITY].v_access&CHANGED) {
775: vtable[PARITY].v_access &= ~CHANGED;
1.7 deraadt 776: setparity(NOSTR);
1.1 deraadt 777: }
1.17 millert 778: if (vtable[HARDWAREFLOW].v_access&CHANGED) {
779: vtable[HARDWAREFLOW].v_access &= ~CHANGED;
780: if (boolean(value(HARDWAREFLOW)))
781: hardwareflow("on");
782: else
783: hardwareflow("off");
784: }
1.11 millert 785: }
786:
787: void
788: listvariables()
789: {
790: value_t *p;
791: char buf[BUFSIZ];
792:
793: puts("v\r");
794: for (p = vtable; p->v_name; p++) {
795: fputs(p->v_name, stdout);
796: switch (p->v_type&TMASK) {
797: case STRING:
798: if (p->v_value) {
799: strnvis(buf, p->v_value, sizeof(buf),
800: VIS_WHITE|VIS_OCTAL);
801: printf(" %s", buf);
802: }
803: putchar('\r');
804: putchar('\n');
805: break;
806: case NUMBER:
1.12 pvalchev 807: printf(" %ld\r\n", number(p->v_value));
1.11 millert 808: break;
809: case BOOL:
810: printf(" %s\r\n",
1.17 millert 811: !boolean(p->v_value) ? "false" : "true");
1.11 millert 812: break;
813: case CHAR:
814: vis(buf, character(p->v_value), VIS_WHITE|VIS_OCTAL, 0);
815: printf(" %s\r\n", buf);
816: break;
817: }
818: }
1.1 deraadt 819: }
820:
821: /*
822: * Turn tandem mode on or off for remote tty.
823: */
1.7 deraadt 824: void
1.1 deraadt 825: tandem(option)
826: char *option;
827: {
1.2 deraadt 828: struct termios rmtty;
1.1 deraadt 829:
1.2 deraadt 830: tcgetattr(FD, &rmtty);
831: if (strcmp(option, "on") == 0) {
832: rmtty.c_iflag |= IXOFF;
833: term.c_iflag |= IXOFF;
1.1 deraadt 834: } else {
1.2 deraadt 835: rmtty.c_iflag &= ~IXOFF;
836: term.c_iflag &= ~IXOFF;
1.1 deraadt 837: }
1.2 deraadt 838: tcsetattr(FD, TCSADRAIN, &rmtty);
839: tcsetattr(0, TCSADRAIN, &term);
1.17 millert 840: }
841:
842: /*
843: * Turn hardware flow control on or off for remote tty.
844: */
845: void
846: hardwareflow(option)
847: char *option;
848: {
849: struct termios rmtty;
850:
851: tcgetattr(FD, &rmtty);
852: if (strcmp(option, "on") == 0)
853: rmtty.c_iflag |= CRTSCTS;
854: else
855: rmtty.c_iflag &= ~CRTSCTS;
856: tcsetattr(FD, TCSADRAIN, &rmtty);
1.1 deraadt 857: }
858:
859: /*
860: * Send a break.
861: */
1.7 deraadt 862: void
1.1 deraadt 863: genbrk()
864: {
865:
866: ioctl(FD, TIOCSBRK, NULL);
867: sleep(1);
868: ioctl(FD, TIOCCBRK, NULL);
869: }
870:
871: /*
872: * Suspend tip
873: */
1.7 deraadt 874: void
1.1 deraadt 875: suspend(c)
876: char c;
877: {
878:
879: unraw();
880: kill(c == CTRL('y') ? getpid() : 0, SIGTSTP);
881: raw();
882: }
883:
884: /*
885: * expand a file name if it includes shell meta characters
886: */
887:
888: char *
889: expand(name)
890: char name[];
891: {
892: static char xname[BUFSIZ];
893: char cmdbuf[BUFSIZ];
1.15 mpech 894: int l;
1.13 millert 895: char *cp, *Shell;
1.7 deraadt 896: int s, pivec[2];
1.15 mpech 897: pid_t pid;
1.1 deraadt 898:
899: if (!anyof(name, "~{[*?$`'\"\\"))
900: return(name);
901: /* sigint = signal(SIGINT, SIG_IGN); */
902: if (pipe(pivec) < 0) {
903: perror("pipe");
904: /* signal(SIGINT, sigint) */
905: return(name);
906: }
1.5 millert 907: (void)snprintf(cmdbuf, sizeof(cmdbuf), "echo %s", name);
1.1 deraadt 908: if ((pid = vfork()) == 0) {
909: Shell = value(SHELL);
910: if (Shell == NOSTR)
911: Shell = _PATH_BSHELL;
912: close(pivec[0]);
913: close(1);
914: dup(pivec[1]);
915: close(pivec[1]);
916: close(2);
917: shell_uid();
1.9 deraadt 918: execl(Shell, Shell, "-c", cmdbuf, (char *)NULL);
1.1 deraadt 919: _exit(1);
920: }
921: if (pid == -1) {
922: perror("fork");
923: close(pivec[0]);
924: close(pivec[1]);
925: return(NOSTR);
926: }
927: close(pivec[1]);
928: l = read(pivec[0], xname, BUFSIZ);
929: close(pivec[0]);
930: while (wait(&s) != pid);
931: ;
932: s &= 0377;
933: if (s != 0 && s != SIGPIPE) {
934: fprintf(stderr, "\"Echo\" failed\n");
935: return(NOSTR);
936: }
937: if (l < 0) {
938: perror("read");
939: return(NOSTR);
940: }
941: if (l == 0) {
942: fprintf(stderr, "\"%s\": No match\n", name);
943: return(NOSTR);
944: }
945: if (l == BUFSIZ) {
946: fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name);
947: return(NOSTR);
948: }
949: xname[l] = 0;
950: for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
951: ;
952: *++cp = '\0';
953: return(xname);
954: }
955:
956: /*
957: * Are any of the characters in the two strings the same?
958: */
1.7 deraadt 959: int
1.1 deraadt 960: anyof(s1, s2)
1.13 millert 961: char *s1, *s2;
1.1 deraadt 962: {
1.13 millert 963: int c;
1.1 deraadt 964:
1.7 deraadt 965: while ((c = *s1++))
1.1 deraadt 966: if (any(c, s2))
967: return(1);
968: return(0);
969: }
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