Commit | Line | Data |
---|---|---|
8c5eec2f DF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
7 | #ifndef lint | |
8 | char copyright[] = | |
9 | "@(#) Copyright (c) 1983 Regents of the University of California.\n\ | |
10 | All rights reserved.\n"; | |
11 | #endif not lint | |
12 | ||
ac6e6727 | 13 | #ifndef lint |
8356bfad | 14 | static char sccsid[] = "@(#)telnetd.c 5.6 (Berkeley) %G%"; |
8c5eec2f | 15 | #endif not lint |
ac6e6727 | 16 | |
66b878f6 BJ |
17 | /* |
18 | * Stripped-down telnet server. | |
19 | */ | |
de3b21e8 SL |
20 | #include <sys/types.h> |
21 | #include <sys/socket.h> | |
ce4fd43b | 22 | #include <sys/wait.h> |
1a33b848 | 23 | #include <sys/file.h> |
c29f876c | 24 | #include <sys/stat.h> |
de3b21e8 SL |
25 | |
26 | #include <netinet/in.h> | |
27 | ||
2b597a6b SL |
28 | #include <arpa/telnet.h> |
29 | ||
66b878f6 BJ |
30 | #include <stdio.h> |
31 | #include <signal.h> | |
32 | #include <errno.h> | |
33 | #include <sgtty.h> | |
9f005877 | 34 | #include <netdb.h> |
3f99c0f7 | 35 | #include <syslog.h> |
de3b21e8 | 36 | |
4898c5bf | 37 | #define BELL '\07' |
122f5efc | 38 | #define BANNER "\r\n\r\n4.3 BSD UNIX (%s)\r\n\r\r\n\r%s" |
66b878f6 BJ |
39 | |
40 | char hisopts[256]; | |
41 | char myopts[256]; | |
42 | ||
43 | char doopt[] = { IAC, DO, '%', 'c', 0 }; | |
44 | char dont[] = { IAC, DONT, '%', 'c', 0 }; | |
45 | char will[] = { IAC, WILL, '%', 'c', 0 }; | |
46 | char wont[] = { IAC, WONT, '%', 'c', 0 }; | |
47 | ||
48 | /* | |
49 | * I/O data buffers, pointers, and counters. | |
50 | */ | |
51 | char ptyibuf[BUFSIZ], *ptyip = ptyibuf; | |
52 | char ptyobuf[BUFSIZ], *pfrontp = ptyobuf, *pbackp = ptyobuf; | |
53 | char netibuf[BUFSIZ], *netip = netibuf; | |
9ef3087d | 54 | char netobuf[BUFSIZ], *nfrontp = netobuf, *nbackp = netobuf; |
66b878f6 BJ |
55 | int pcc, ncc; |
56 | ||
57 | int pty, net; | |
58 | int inter; | |
fe5c5547 | 59 | extern char **environ; |
66b878f6 | 60 | extern int errno; |
c29f876c | 61 | char *line; |
66b878f6 | 62 | |
66b878f6 BJ |
63 | main(argc, argv) |
64 | char *argv[]; | |
65 | { | |
bb933cc2 | 66 | struct sockaddr_in from; |
bcb894cb | 67 | int on = 1, fromlen; |
bb933cc2 | 68 | |
076ae92c | 69 | openlog("telnetd", LOG_PID | LOG_ODELAY, LOG_DAEMON); |
bb933cc2 MK |
70 | fromlen = sizeof (from); |
71 | if (getpeername(0, &from, &fromlen) < 0) { | |
72 | fprintf(stderr, "%s: ", argv[0]); | |
73 | perror("getpeername"); | |
74 | _exit(1); | |
de3b21e8 | 75 | } |
bcb894cb | 76 | if (setsockopt(0, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof (on)) < 0) { |
3f99c0f7 | 77 | syslog(LOG_WARNING, "setsockopt (SO_KEEPALIVE): %m"); |
de3b21e8 | 78 | } |
bb933cc2 | 79 | doit(0, &from); |
f553aca8 SL |
80 | } |
81 | ||
fe5c5547 | 82 | char *envinit[] = { "TERM=network", 0 }; |
66b878f6 BJ |
83 | int cleanup(); |
84 | ||
85 | /* | |
86 | * Get a pty, scan input lines. | |
87 | */ | |
37c640e2 SL |
88 | doit(f, who) |
89 | int f; | |
90 | struct sockaddr_in *who; | |
66b878f6 | 91 | { |
c29f876c | 92 | char *host, *inet_ntoa(); |
1a33b848 | 93 | int i, p, t; |
66b878f6 | 94 | struct sgttyb b; |
37c640e2 | 95 | struct hostent *hp; |
c29f876c | 96 | char c; |
1a33b848 | 97 | |
c29f876c MK |
98 | for (c = 'p'; c <= 's'; c++) { |
99 | struct stat stb; | |
100 | ||
101 | line = "/dev/ptyXX"; | |
102 | line[strlen("/dev/pty")] = c; | |
103 | line[strlen("/dev/ptyp")] = '0'; | |
104 | if (stat(line, &stb) < 0) | |
105 | break; | |
1a33b848 | 106 | for (i = 0; i < 16; i++) { |
c29f876c MK |
107 | line[strlen("/dev/ptyp")] = "0123456789abcdef"[i]; |
108 | p = open(line, 2); | |
1a33b848 SL |
109 | if (p > 0) |
110 | goto gotpty; | |
111 | } | |
66b878f6 | 112 | } |
8f2758db SL |
113 | fatal(f, "All network ports in use"); |
114 | /*NOTREACHED*/ | |
66b878f6 BJ |
115 | gotpty: |
116 | dup2(f, 0); | |
c29f876c | 117 | line[strlen("/dev/")] = 't'; |
1a33b848 | 118 | t = open("/dev/tty", O_RDWR); |
66b878f6 BJ |
119 | if (t >= 0) { |
120 | ioctl(t, TIOCNOTTY, 0); | |
121 | close(t); | |
122 | } | |
c29f876c | 123 | t = open(line, O_RDWR); |
8f2758db | 124 | if (t < 0) |
c29f876c | 125 | fatalperror(f, line, errno); |
66b878f6 | 126 | ioctl(t, TIOCGETP, &b); |
9ef3087d | 127 | b.sg_flags = CRMOD|XTABS|ANYP; |
66b878f6 | 128 | ioctl(t, TIOCSETP, &b); |
9ef3087d | 129 | ioctl(p, TIOCGETP, &b); |
da96b661 | 130 | b.sg_flags &= ~ECHO; |
9ef3087d | 131 | ioctl(p, TIOCSETP, &b); |
37c640e2 SL |
132 | hp = gethostbyaddr(&who->sin_addr, sizeof (struct in_addr), |
133 | who->sin_family); | |
134 | if (hp) | |
135 | host = hp->h_name; | |
136 | else | |
05fa5465 | 137 | host = inet_ntoa(who->sin_addr); |
8f2758db SL |
138 | if ((i = fork()) < 0) |
139 | fatalperror(f, "fork", errno); | |
66b878f6 BJ |
140 | if (i) |
141 | telnet(f, p); | |
142 | close(f); | |
143 | close(p); | |
144 | dup2(t, 0); | |
145 | dup2(t, 1); | |
146 | dup2(t, 2); | |
147 | close(t); | |
fe5c5547 | 148 | environ = envinit; |
0c285f22 | 149 | execl("/bin/login", "login", "-h", host, 0); |
8f2758db SL |
150 | fatalperror(f, "/bin/login", errno); |
151 | /*NOTREACHED*/ | |
152 | } | |
153 | ||
154 | fatal(f, msg) | |
155 | int f; | |
156 | char *msg; | |
157 | { | |
158 | char buf[BUFSIZ]; | |
159 | ||
1a33b848 | 160 | (void) sprintf(buf, "telnetd: %s.\r\n", msg); |
8f2758db | 161 | (void) write(f, buf, strlen(buf)); |
66b878f6 BJ |
162 | exit(1); |
163 | } | |
164 | ||
8f2758db SL |
165 | fatalperror(f, msg, errno) |
166 | int f; | |
167 | char *msg; | |
168 | int errno; | |
169 | { | |
170 | char buf[BUFSIZ]; | |
171 | extern char *sys_errlist[]; | |
172 | ||
1a33b848 | 173 | (void) sprintf(buf, "%s: %s\r\n", msg, sys_errlist[errno]); |
8f2758db SL |
174 | fatal(f, buf); |
175 | } | |
176 | ||
66b878f6 BJ |
177 | /* |
178 | * Main loop. Select from pty and network, and | |
179 | * hand data to telnet receiver finite state machine. | |
180 | */ | |
181 | telnet(f, p) | |
182 | { | |
183 | int on = 1; | |
0c285f22 | 184 | char hostname[32]; |
66b878f6 BJ |
185 | |
186 | net = f, pty = p; | |
187 | ioctl(f, FIONBIO, &on); | |
188 | ioctl(p, FIONBIO, &on); | |
189 | signal(SIGTSTP, SIG_IGN); | |
8a53982e | 190 | signal(SIGCHLD, cleanup); |
f4c5d9f9 | 191 | setpgrp(0, 0); |
66b878f6 | 192 | |
da96b661 SL |
193 | /* |
194 | * Request to do remote echo. | |
195 | */ | |
196 | dooption(TELOPT_ECHO); | |
197 | myopts[TELOPT_ECHO] = 1; | |
0c285f22 SL |
198 | /* |
199 | * Show banner that getty never gave. | |
200 | */ | |
201 | gethostname(hostname, sizeof (hostname)); | |
202 | sprintf(nfrontp, BANNER, hostname, ""); | |
203 | nfrontp += strlen(nfrontp); | |
66b878f6 BJ |
204 | for (;;) { |
205 | int ibits = 0, obits = 0; | |
206 | register int c; | |
207 | ||
208 | /* | |
209 | * Never look for input if there's still | |
210 | * stuff in the corresponding output buffer | |
211 | */ | |
1a33b848 | 212 | if (nfrontp - nbackp || pcc > 0) |
66b878f6 BJ |
213 | obits |= (1 << f); |
214 | else | |
215 | ibits |= (1 << p); | |
1a33b848 | 216 | if (pfrontp - pbackp || ncc > 0) |
66b878f6 BJ |
217 | obits |= (1 << p); |
218 | else | |
219 | ibits |= (1 << f); | |
220 | if (ncc < 0 && pcc < 0) | |
221 | break; | |
de3b21e8 | 222 | select(16, &ibits, &obits, 0, 0); |
66b878f6 BJ |
223 | if (ibits == 0 && obits == 0) { |
224 | sleep(5); | |
225 | continue; | |
226 | } | |
227 | ||
228 | /* | |
229 | * Something to read from the network... | |
230 | */ | |
231 | if (ibits & (1 << f)) { | |
232 | ncc = read(f, netibuf, BUFSIZ); | |
233 | if (ncc < 0 && errno == EWOULDBLOCK) | |
234 | ncc = 0; | |
235 | else { | |
236 | if (ncc <= 0) | |
237 | break; | |
238 | netip = netibuf; | |
239 | } | |
240 | } | |
241 | ||
242 | /* | |
243 | * Something to read from the pty... | |
244 | */ | |
245 | if (ibits & (1 << p)) { | |
246 | pcc = read(p, ptyibuf, BUFSIZ); | |
247 | if (pcc < 0 && errno == EWOULDBLOCK) | |
248 | pcc = 0; | |
249 | else { | |
250 | if (pcc <= 0) | |
251 | break; | |
252 | ptyip = ptyibuf; | |
253 | } | |
254 | } | |
255 | ||
256 | while (pcc > 0) { | |
257 | if ((&netobuf[BUFSIZ] - nfrontp) < 2) | |
258 | break; | |
259 | c = *ptyip++ & 0377, pcc--; | |
260 | if (c == IAC) | |
261 | *nfrontp++ = c; | |
262 | *nfrontp++ = c; | |
263 | } | |
264 | if ((obits & (1 << f)) && (nfrontp - nbackp) > 0) | |
265 | netflush(); | |
266 | if (ncc > 0) | |
267 | telrcv(); | |
268 | if ((obits & (1 << p)) && (pfrontp - pbackp) > 0) | |
269 | ptyflush(); | |
270 | } | |
271 | cleanup(); | |
272 | } | |
273 | ||
274 | /* | |
275 | * State for recv fsm | |
276 | */ | |
277 | #define TS_DATA 0 /* base state */ | |
278 | #define TS_IAC 1 /* look for double IAC's */ | |
279 | #define TS_CR 2 /* CR-LF ->'s CR */ | |
280 | #define TS_BEGINNEG 3 /* throw away begin's... */ | |
281 | #define TS_ENDNEG 4 /* ...end's (suboption negotiation) */ | |
282 | #define TS_WILL 5 /* will option negotiation */ | |
283 | #define TS_WONT 6 /* wont " */ | |
284 | #define TS_DO 7 /* do " */ | |
285 | #define TS_DONT 8 /* dont " */ | |
286 | ||
287 | telrcv() | |
288 | { | |
289 | register int c; | |
290 | static int state = TS_DATA; | |
291 | struct sgttyb b; | |
292 | ||
293 | while (ncc > 0) { | |
294 | if ((&ptyobuf[BUFSIZ] - pfrontp) < 2) | |
295 | return; | |
296 | c = *netip++ & 0377, ncc--; | |
297 | switch (state) { | |
298 | ||
8356bfad GM |
299 | case TS_CR: |
300 | state = TS_DATA; | |
301 | if (c == 0) { | |
302 | *pfrontp++ = '\r'; | |
303 | break; | |
304 | } else if (c == '\n') { | |
305 | *pfrontp++ = c; | |
306 | break; | |
307 | } else | |
308 | *pfrontp++ = '\r'; | |
309 | /* FALL THROUGH */ | |
310 | ||
66b878f6 BJ |
311 | case TS_DATA: |
312 | if (c == IAC) { | |
313 | state = TS_IAC; | |
314 | break; | |
315 | } | |
316 | if (inter > 0) | |
317 | break; | |
66b878f6 BJ |
318 | if (!myopts[TELOPT_BINARY] && c == '\r') |
319 | state = TS_CR; | |
8356bfad | 320 | else |
66b878f6 | 321 | *pfrontp++ = c; |
66b878f6 BJ |
322 | break; |
323 | ||
324 | case TS_IAC: | |
325 | switch (c) { | |
326 | ||
327 | /* | |
328 | * Send the process on the pty side an | |
329 | * interrupt. Do this with a NULL or | |
330 | * interrupt char; depending on the tty mode. | |
331 | */ | |
332 | case BREAK: | |
333 | case IP: | |
334 | interrupt(); | |
335 | break; | |
336 | ||
337 | /* | |
338 | * Are You There? | |
339 | */ | |
340 | case AYT: | |
1a33b848 SL |
341 | strcpy(nfrontp, "\r\n[Yes]\r\n"); |
342 | nfrontp += 9; | |
66b878f6 BJ |
343 | break; |
344 | ||
345 | /* | |
346 | * Erase Character and | |
347 | * Erase Line | |
348 | */ | |
349 | case EC: | |
350 | case EL: | |
351 | ptyflush(); /* half-hearted */ | |
352 | ioctl(pty, TIOCGETP, &b); | |
353 | *pfrontp++ = (c == EC) ? | |
354 | b.sg_erase : b.sg_kill; | |
355 | break; | |
356 | ||
357 | /* | |
358 | * Check for urgent data... | |
359 | */ | |
360 | case DM: | |
361 | break; | |
362 | ||
363 | /* | |
364 | * Begin option subnegotiation... | |
365 | */ | |
366 | case SB: | |
367 | state = TS_BEGINNEG; | |
368 | continue; | |
369 | ||
370 | case WILL: | |
371 | case WONT: | |
372 | case DO: | |
373 | case DONT: | |
374 | state = TS_WILL + (c - WILL); | |
375 | continue; | |
376 | ||
377 | case IAC: | |
378 | *pfrontp++ = c; | |
379 | break; | |
380 | } | |
381 | state = TS_DATA; | |
382 | break; | |
383 | ||
384 | case TS_BEGINNEG: | |
385 | if (c == IAC) | |
386 | state = TS_ENDNEG; | |
387 | break; | |
388 | ||
389 | case TS_ENDNEG: | |
390 | state = c == SE ? TS_DATA : TS_BEGINNEG; | |
391 | break; | |
392 | ||
393 | case TS_WILL: | |
394 | if (!hisopts[c]) | |
395 | willoption(c); | |
396 | state = TS_DATA; | |
397 | continue; | |
398 | ||
399 | case TS_WONT: | |
400 | if (hisopts[c]) | |
401 | wontoption(c); | |
402 | state = TS_DATA; | |
403 | continue; | |
404 | ||
405 | case TS_DO: | |
406 | if (!myopts[c]) | |
407 | dooption(c); | |
408 | state = TS_DATA; | |
409 | continue; | |
410 | ||
411 | case TS_DONT: | |
412 | if (myopts[c]) { | |
413 | myopts[c] = 0; | |
414 | sprintf(nfrontp, wont, c); | |
da96b661 | 415 | nfrontp += sizeof (wont) - 2; |
66b878f6 BJ |
416 | } |
417 | state = TS_DATA; | |
418 | continue; | |
419 | ||
420 | default: | |
de3b21e8 | 421 | printf("telnetd: panic state=%d\n", state); |
66b878f6 BJ |
422 | exit(1); |
423 | } | |
424 | } | |
425 | } | |
426 | ||
427 | willoption(option) | |
428 | int option; | |
429 | { | |
430 | char *fmt; | |
431 | ||
432 | switch (option) { | |
433 | ||
434 | case TELOPT_BINARY: | |
435 | mode(RAW, 0); | |
436 | goto common; | |
437 | ||
438 | case TELOPT_ECHO: | |
439 | mode(0, ECHO|CRMOD); | |
440 | /*FALL THRU*/ | |
441 | ||
442 | case TELOPT_SGA: | |
443 | common: | |
444 | hisopts[option] = 1; | |
445 | fmt = doopt; | |
446 | break; | |
447 | ||
448 | case TELOPT_TM: | |
449 | fmt = dont; | |
450 | break; | |
451 | ||
452 | default: | |
453 | fmt = dont; | |
454 | break; | |
455 | } | |
13646f15 | 456 | sprintf(nfrontp, fmt, option); |
da96b661 | 457 | nfrontp += sizeof (dont) - 2; |
66b878f6 BJ |
458 | } |
459 | ||
460 | wontoption(option) | |
461 | int option; | |
462 | { | |
463 | char *fmt; | |
464 | ||
465 | switch (option) { | |
466 | ||
467 | case TELOPT_ECHO: | |
468 | mode(ECHO|CRMOD, 0); | |
469 | goto common; | |
470 | ||
471 | case TELOPT_BINARY: | |
472 | mode(0, RAW); | |
473 | /*FALL THRU*/ | |
474 | ||
475 | case TELOPT_SGA: | |
476 | common: | |
477 | hisopts[option] = 0; | |
478 | fmt = dont; | |
479 | break; | |
480 | ||
481 | default: | |
482 | fmt = dont; | |
483 | } | |
484 | sprintf(nfrontp, fmt, option); | |
da96b661 | 485 | nfrontp += sizeof (doopt) - 2; |
66b878f6 BJ |
486 | } |
487 | ||
488 | dooption(option) | |
489 | int option; | |
490 | { | |
491 | char *fmt; | |
492 | ||
493 | switch (option) { | |
494 | ||
495 | case TELOPT_TM: | |
496 | fmt = wont; | |
497 | break; | |
498 | ||
499 | case TELOPT_ECHO: | |
500 | mode(ECHO|CRMOD, 0); | |
501 | goto common; | |
502 | ||
503 | case TELOPT_BINARY: | |
504 | mode(RAW, 0); | |
505 | /*FALL THRU*/ | |
506 | ||
507 | case TELOPT_SGA: | |
508 | common: | |
509 | fmt = will; | |
510 | break; | |
511 | ||
512 | default: | |
513 | fmt = wont; | |
514 | break; | |
515 | } | |
516 | sprintf(nfrontp, fmt, option); | |
da96b661 | 517 | nfrontp += sizeof (doopt) - 2; |
66b878f6 BJ |
518 | } |
519 | ||
520 | mode(on, off) | |
521 | int on, off; | |
522 | { | |
523 | struct sgttyb b; | |
524 | ||
525 | ptyflush(); | |
526 | ioctl(pty, TIOCGETP, &b); | |
527 | b.sg_flags |= on; | |
528 | b.sg_flags &= ~off; | |
529 | ioctl(pty, TIOCSETP, &b); | |
530 | } | |
531 | ||
532 | /* | |
533 | * Send interrupt to process on other side of pty. | |
534 | * If it is in raw mode, just write NULL; | |
535 | * otherwise, write intr char. | |
536 | */ | |
537 | interrupt() | |
538 | { | |
539 | struct sgttyb b; | |
540 | struct tchars tchars; | |
541 | ||
542 | ptyflush(); /* half-hearted */ | |
543 | ioctl(pty, TIOCGETP, &b); | |
544 | if (b.sg_flags & RAW) { | |
545 | *pfrontp++ = '\0'; | |
546 | return; | |
547 | } | |
548 | *pfrontp++ = ioctl(pty, TIOCGETC, &tchars) < 0 ? | |
549 | '\177' : tchars.t_intrc; | |
550 | } | |
551 | ||
552 | ptyflush() | |
553 | { | |
554 | int n; | |
555 | ||
556 | if ((n = pfrontp - pbackp) > 0) | |
557 | n = write(pty, pbackp, n); | |
9f005877 SL |
558 | if (n < 0) |
559 | return; | |
66b878f6 BJ |
560 | pbackp += n; |
561 | if (pbackp == pfrontp) | |
562 | pbackp = pfrontp = ptyobuf; | |
563 | } | |
564 | ||
565 | netflush() | |
566 | { | |
567 | int n; | |
568 | ||
569 | if ((n = nfrontp - nbackp) > 0) | |
570 | n = write(net, nbackp, n); | |
9f005877 SL |
571 | if (n < 0) { |
572 | if (errno == EWOULDBLOCK) | |
573 | return; | |
574 | /* should blow this guy away... */ | |
575 | return; | |
576 | } | |
66b878f6 BJ |
577 | nbackp += n; |
578 | if (nbackp == nfrontp) | |
579 | nbackp = nfrontp = netobuf; | |
580 | } | |
581 | ||
582 | cleanup() | |
583 | { | |
66b878f6 BJ |
584 | |
585 | rmut(); | |
a7f6263e | 586 | vhangup(); /* XXX */ |
ff24c640 | 587 | shutdown(net, 2); |
66b878f6 BJ |
588 | exit(1); |
589 | } | |
590 | ||
591 | #include <utmp.h> | |
592 | ||
593 | struct utmp wtmp; | |
594 | char wtmpf[] = "/usr/adm/wtmp"; | |
122f5efc JB |
595 | char utmpf[] = "/etc/utmp"; |
596 | #define SCPYN(a, b) strncpy(a, b, sizeof(a)) | |
597 | #define SCMPN(a, b) strncmp(a, b, sizeof(a)) | |
66b878f6 BJ |
598 | |
599 | rmut() | |
600 | { | |
601 | register f; | |
602 | int found = 0; | |
122f5efc JB |
603 | struct utmp *u, *utmp; |
604 | int nutmp; | |
605 | struct stat statbf; | |
66b878f6 | 606 | |
122f5efc | 607 | f = open(utmpf, O_RDWR); |
66b878f6 | 608 | if (f >= 0) { |
122f5efc JB |
609 | fstat(f, &statbf); |
610 | utmp = (struct utmp *)malloc(statbf.st_size); | |
611 | if (!utmp) | |
612 | syslog(LOG_ERR, "utmp malloc failed"); | |
613 | if (statbf.st_size && utmp) { | |
614 | nutmp = read(f, utmp, statbf.st_size); | |
615 | nutmp /= sizeof(struct utmp); | |
616 | ||
617 | for (u = utmp ; u < &utmp[nutmp] ; u++) { | |
618 | if (SCMPN(u->ut_line, line+5) || | |
619 | u->ut_name[0]==0) | |
620 | continue; | |
621 | lseek(f, ((long)u)-((long)utmp), L_SET); | |
622 | SCPYN(u->ut_name, ""); | |
623 | SCPYN(u->ut_host, ""); | |
624 | time(&u->ut_time); | |
625 | write(f, (char *)u, sizeof(wtmp)); | |
626 | found++; | |
627 | } | |
66b878f6 BJ |
628 | } |
629 | close(f); | |
630 | } | |
631 | if (found) { | |
1a33b848 | 632 | f = open(wtmpf, O_WRONLY|O_APPEND); |
66b878f6 BJ |
633 | if (f >= 0) { |
634 | SCPYN(wtmp.ut_line, line+5); | |
635 | SCPYN(wtmp.ut_name, ""); | |
37c640e2 | 636 | SCPYN(wtmp.ut_host, ""); |
66b878f6 | 637 | time(&wtmp.ut_time); |
122f5efc | 638 | write(f, (char *)&wtmp, sizeof(wtmp)); |
66b878f6 BJ |
639 | close(f); |
640 | } | |
641 | } | |
642 | chmod(line, 0666); | |
643 | chown(line, 0, 0); | |
644 | line[strlen("/dev/")] = 'p'; | |
645 | chmod(line, 0666); | |
646 | chown(line, 0, 0); | |
647 | } |