Commit | Line | Data |
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ea139302 PB |
1 | /* |
2 | * Copyright (c) 1989 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
836fe169 | 5 | * %sccs.include.redist.c% |
ea139302 PB |
6 | */ |
7 | ||
8 | #ifndef lint | |
9633556e | 9 | static char sccsid[] = "@(#)sys_term.c 5.9 (Berkeley) %G%"; |
ea139302 PB |
10 | #endif /* not lint */ |
11 | ||
12 | #include "telnetd.h" | |
13 | #include "pathnames.h" | |
14 | ||
15 | #ifdef NEWINIT | |
16 | #include <initreq.h> | |
17 | #else /* NEWINIT*/ | |
18 | #include <utmp.h> | |
19 | struct utmp wtmp; | |
20 | ||
21 | # ifndef CRAY | |
22 | char wtmpf[] = "/usr/adm/wtmp"; | |
23 | char utmpf[] = "/etc/utmp"; | |
24 | # else /* CRAY */ | |
25 | char wtmpf[] = "/etc/wtmp"; | |
26 | # endif /* CRAY */ | |
27 | #endif /* NEWINIT */ | |
28 | ||
29 | #define SCPYN(a, b) (void) strncpy(a, b, sizeof(a)) | |
30 | #define SCMPN(a, b) strncmp(a, b, sizeof(a)) | |
31 | ||
4a8a7128 PB |
32 | #ifdef STREAMS |
33 | #include <sys/stream.h> | |
34 | #endif | |
ea139302 PB |
35 | #include <sys/tty.h> |
36 | #ifdef t_erase | |
37 | #undef t_erase | |
38 | #undef t_kill | |
39 | #undef t_intrc | |
40 | #undef t_quitc | |
41 | #undef t_startc | |
42 | #undef t_stopc | |
43 | #undef t_eofc | |
44 | #undef t_brkc | |
45 | #undef t_suspc | |
46 | #undef t_dsuspc | |
47 | #undef t_rprntc | |
48 | #undef t_flushc | |
49 | #undef t_werasc | |
50 | #undef t_lnextc | |
51 | #endif | |
52 | ||
4a8a7128 PB |
53 | #if defined(UNICOS5) && defined(CRAY2) && !defined(EXTPROC) |
54 | # define EXTPROC 0400 | |
55 | #endif | |
56 | ||
ea139302 PB |
57 | #ifndef USE_TERMIO |
58 | struct termbuf { | |
59 | struct sgttyb sg; | |
60 | struct tchars tc; | |
61 | struct ltchars ltc; | |
62 | int state; | |
63 | int lflags; | |
64 | } termbuf, termbuf2; | |
65 | #else /* USE_TERMIO */ | |
ea139302 PB |
66 | # ifdef SYSV_TERMIO |
67 | # define termios termio | |
68 | # endif | |
7308c4e5 | 69 | # ifndef TCSETA |
4a8a7128 PB |
70 | # ifdef TCSETS |
71 | # define TCSETA TCSETS | |
72 | # define TCGETA TCGETS | |
73 | # else | |
74 | # define TCSETA TIOCSETA | |
75 | # define TCGETA TIOCGETA | |
76 | # endif | |
7308c4e5 | 77 | # endif /* 4.4BSD */ |
ea139302 PB |
78 | struct termios termbuf, termbuf2; /* pty control structure */ |
79 | #endif /* USE_TERMIO */ | |
80 | ||
81 | /* | |
82 | * init_termbuf() | |
83 | * copy_termbuf(cp) | |
84 | * set_termbuf() | |
85 | * | |
86 | * These three routines are used to get and set the "termbuf" structure | |
87 | * to and from the kernel. init_termbuf() gets the current settings. | |
88 | * copy_termbuf() hands in a new "termbuf" to write to the kernel, and | |
89 | * set_termbuf() writes the structure into the kernel. | |
90 | */ | |
91 | ||
92 | init_termbuf() | |
93 | { | |
94 | #ifndef USE_TERMIO | |
95 | (void) ioctl(pty, TIOCGETP, (char *)&termbuf.sg); | |
96 | (void) ioctl(pty, TIOCGETC, (char *)&termbuf.tc); | |
97 | (void) ioctl(pty, TIOCGLTC, (char *)&termbuf.ltc); | |
98 | # ifdef TIOCGSTATE | |
99 | (void) ioctl(pty, TIOCGSTATE, (char *)&termbuf.state); | |
100 | # endif | |
101 | #else | |
102 | (void) ioctl(pty, TCGETA, (char *)&termbuf); | |
103 | #endif | |
104 | termbuf2 = termbuf; | |
105 | } | |
106 | ||
107 | #if defined(LINEMODE) && defined(TIOCPKT_IOCTL) | |
108 | copy_termbuf(cp, len) | |
109 | char *cp; | |
110 | int len; | |
111 | { | |
112 | if (len > sizeof(termbuf)) | |
113 | len = sizeof(termbuf); | |
114 | bcopy(cp, (char *)&termbuf, len); | |
115 | termbuf2 = termbuf; | |
116 | } | |
117 | #endif /* defined(LINEMODE) && defined(TIOCPKT_IOCTL) */ | |
118 | ||
119 | set_termbuf() | |
120 | { | |
121 | /* | |
122 | * Only make the necessary changes. | |
123 | */ | |
124 | #ifndef USE_TERMIO | |
125 | if (bcmp((char *)&termbuf.sg, (char *)&termbuf2.sg, sizeof(termbuf.sg))) | |
126 | (void) ioctl(pty, TIOCSETP, (char *)&termbuf.sg); | |
127 | if (bcmp((char *)&termbuf.tc, (char *)&termbuf2.tc, sizeof(termbuf.tc))) | |
128 | (void) ioctl(pty, TIOCSETC, (char *)&termbuf.tc); | |
129 | if (bcmp((char *)&termbuf.ltc, (char *)&termbuf2.ltc, | |
130 | sizeof(termbuf.ltc))) | |
131 | (void) ioctl(pty, TIOCSLTC, (char *)&termbuf.ltc); | |
132 | if (termbuf.lflags != termbuf2.lflags) | |
133 | (void) ioctl(pty, TIOCLSET, (char *)&termbuf.lflags); | |
134 | #else /* USE_TERMIO */ | |
135 | if (bcmp((char *)&termbuf, (char *)&termbuf2, sizeof(termbuf))) | |
136 | (void) ioctl(pty, TCSETA, (char *)&termbuf); | |
ed8f31c1 | 137 | # if defined(CRAY2) && defined(UNCIOS5) |
ea139302 PB |
138 | needtermstat = 1; |
139 | # endif | |
140 | #endif /* USE_TERMIO */ | |
141 | } | |
142 | ||
143 | ||
144 | /* | |
145 | * spcset(func, valp, valpp) | |
146 | * | |
147 | * This function takes various special characters (func), and | |
148 | * sets *valp to the current value of that character, and | |
149 | * *valpp to point to where in the "termbuf" structure that | |
150 | * value is kept. | |
151 | * | |
152 | * It returns the SLC_ level of support for this function. | |
153 | */ | |
154 | ||
155 | #ifndef USE_TERMIO | |
156 | spcset(func, valp, valpp) | |
157 | int func; | |
ed8f31c1 PB |
158 | cc_t *valp; |
159 | cc_t **valpp; | |
ea139302 PB |
160 | { |
161 | switch(func) { | |
162 | case SLC_EOF: | |
163 | *valp = termbuf.tc.t_eofc; | |
ed8f31c1 | 164 | *valpp = (cc_t *)&termbuf.tc.t_eofc; |
ea139302 PB |
165 | return(SLC_VARIABLE); |
166 | case SLC_EC: | |
167 | *valp = termbuf.sg.sg_erase; | |
ed8f31c1 | 168 | *valpp = (cc_t *)&termbuf.sg.sg_erase; |
ea139302 PB |
169 | return(SLC_VARIABLE); |
170 | case SLC_EL: | |
171 | *valp = termbuf.sg.sg_kill; | |
ed8f31c1 | 172 | *valpp = (cc_t *)&termbuf.sg.sg_kill; |
ea139302 PB |
173 | return(SLC_VARIABLE); |
174 | case SLC_IP: | |
175 | *valp = termbuf.tc.t_intrc; | |
ed8f31c1 | 176 | *valpp = (cc_t *)&termbuf.tc.t_intrc; |
ea139302 PB |
177 | return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); |
178 | case SLC_ABORT: | |
179 | *valp = termbuf.tc.t_quitc; | |
ed8f31c1 | 180 | *valpp = (cc_t *)&termbuf.tc.t_quitc; |
ea139302 PB |
181 | return(SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); |
182 | case SLC_XON: | |
183 | *valp = termbuf.tc.t_startc; | |
ed8f31c1 | 184 | *valpp = (cc_t *)&termbuf.tc.t_startc; |
ea139302 PB |
185 | return(SLC_VARIABLE); |
186 | case SLC_XOFF: | |
187 | *valp = termbuf.tc.t_stopc; | |
ed8f31c1 | 188 | *valpp = (cc_t *)&termbuf.tc.t_stopc; |
ea139302 PB |
189 | return(SLC_VARIABLE); |
190 | case SLC_AO: | |
191 | *valp = termbuf.ltc.t_flushc; | |
ed8f31c1 | 192 | *valpp = (cc_t *)&termbuf.ltc.t_flushc; |
ea139302 PB |
193 | return(SLC_VARIABLE); |
194 | case SLC_SUSP: | |
195 | *valp = termbuf.ltc.t_suspc; | |
ed8f31c1 | 196 | *valpp = (cc_t *)&termbuf.ltc.t_suspc; |
ea139302 PB |
197 | return(SLC_VARIABLE); |
198 | case SLC_EW: | |
199 | *valp = termbuf.ltc.t_werasc; | |
ed8f31c1 | 200 | *valpp = (cc_t *)&termbuf.ltc.t_werasc; |
ea139302 PB |
201 | return(SLC_VARIABLE); |
202 | case SLC_RP: | |
203 | *valp = termbuf.ltc.t_rprntc; | |
ed8f31c1 | 204 | *valpp = (cc_t *)&termbuf.ltc.t_rprntc; |
ea139302 PB |
205 | return(SLC_VARIABLE); |
206 | case SLC_LNEXT: | |
207 | *valp = termbuf.ltc.t_lnextc; | |
ed8f31c1 PB |
208 | *valpp = (cc_t *)&termbuf.ltc.t_lnextc; |
209 | return(SLC_VARIABLE); | |
210 | case SLC_FORW1: | |
211 | *valp = termbuf.tc.t_brkc; | |
212 | *valpp = (cc_t *)&termbuf.ltc.t_lnextc; | |
ea139302 PB |
213 | return(SLC_VARIABLE); |
214 | case SLC_BRK: | |
215 | case SLC_SYNCH: | |
216 | case SLC_AYT: | |
217 | case SLC_EOR: | |
ed8f31c1 PB |
218 | *valp = (cc_t)0; |
219 | *valpp = (cc_t *)0; | |
ea139302 PB |
220 | return(SLC_DEFAULT); |
221 | default: | |
ed8f31c1 PB |
222 | *valp = (cc_t)0; |
223 | *valpp = (cc_t *)0; | |
ea139302 PB |
224 | return(SLC_NOSUPPORT); |
225 | } | |
226 | } | |
227 | ||
228 | #else /* USE_TERMIO */ | |
229 | ||
230 | spcset(func, valp, valpp) | |
231 | int func; | |
ed8f31c1 PB |
232 | cc_t *valp; |
233 | cc_t **valpp; | |
ea139302 | 234 | { |
053fd49d PB |
235 | |
236 | #define setval(a, b) *valp = termbuf.c_cc[a]; \ | |
237 | *valpp = &termbuf.c_cc[a]; \ | |
238 | return(b); | |
ed8f31c1 | 239 | #define defval(a) *valp = ((cc_t)a); *valpp = (cc_t *)0; return(SLC_DEFAULT); |
053fd49d | 240 | |
ea139302 PB |
241 | switch(func) { |
242 | case SLC_EOF: | |
053fd49d | 243 | setval(VEOF, SLC_VARIABLE); |
ea139302 | 244 | case SLC_EC: |
053fd49d | 245 | setval(VERASE, SLC_VARIABLE); |
ea139302 | 246 | case SLC_EL: |
053fd49d | 247 | setval(VKILL, SLC_VARIABLE); |
ea139302 | 248 | case SLC_IP: |
053fd49d | 249 | setval(VINTR, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); |
ea139302 | 250 | case SLC_ABORT: |
053fd49d | 251 | setval(VQUIT, SLC_VARIABLE|SLC_FLUSHIN|SLC_FLUSHOUT); |
ea139302 | 252 | case SLC_XON: |
053fd49d PB |
253 | #ifdef VSTART |
254 | setval(VSTART, SLC_VARIABLE); | |
255 | #else | |
256 | defval(0x13); | |
257 | #endif | |
ea139302 | 258 | case SLC_XOFF: |
053fd49d PB |
259 | #ifdef VSTOP |
260 | setval(VSTOP, SLC_VARIABLE); | |
261 | #else | |
262 | defval(0x11); | |
263 | #endif | |
ea139302 | 264 | case SLC_EW: |
053fd49d PB |
265 | #ifdef VWERASE |
266 | setval(VWERASE, SLC_VARIABLE); | |
267 | #else | |
268 | defval(0); | |
269 | #endif | |
ea139302 | 270 | case SLC_RP: |
053fd49d PB |
271 | #ifdef VREPRINT |
272 | setval(VREPRINT, SLC_VARIABLE); | |
273 | #else | |
274 | defval(0); | |
275 | #endif | |
ea139302 | 276 | case SLC_LNEXT: |
053fd49d PB |
277 | #ifdef VLNEXT |
278 | setval(VLNEXT, SLC_VARIABLE); | |
279 | #else | |
280 | defval(0); | |
281 | #endif | |
282 | case SLC_AO: | |
4a8a7128 PB |
283 | #ifdef VFLUSHO |
284 | setval(VFLUSHO, SLC_VARIABLE|SLC_FLUSHOUT); | |
053fd49d PB |
285 | #else |
286 | defval(0); | |
287 | #endif | |
288 | case SLC_SUSP: | |
289 | #ifdef VSUSP | |
290 | setval(VSUSP, SLC_VARIABLE|SLC_FLUSHIN); | |
291 | #else | |
292 | defval(0); | |
293 | #endif | |
ed8f31c1 PB |
294 | #ifdef VEOL |
295 | case SLC_FORW1: | |
296 | setval(VEOL, SLC_VARIABLE); | |
297 | #endif | |
298 | #ifdef VEOL2 | |
299 | case SLC_FORW2: | |
300 | setval(VEOL2, SLC_VARIABLE); | |
301 | #endif | |
053fd49d | 302 | |
ea139302 PB |
303 | case SLC_BRK: |
304 | case SLC_SYNCH: | |
305 | case SLC_AYT: | |
306 | case SLC_EOR: | |
053fd49d PB |
307 | defval(0); |
308 | ||
ea139302 PB |
309 | default: |
310 | *valp = 0; | |
311 | *valpp = 0; | |
312 | return(SLC_NOSUPPORT); | |
313 | } | |
314 | } | |
315 | #endif /* USE_TERMIO */ | |
316 | ||
ed8f31c1 PB |
317 | #ifdef CRAY |
318 | /* | |
319 | * getnpty() | |
320 | * | |
321 | * Return the number of pty's configured into the system. | |
322 | */ | |
323 | getnpty() | |
324 | { | |
325 | #ifdef _SC_CRAY_NPTY | |
326 | return sysconf(_SC_CRAY_NPTY); | |
327 | #else | |
328 | return 128; | |
329 | #endif /* _SC_CRAY_NPTY */ | |
330 | } | |
331 | #endif /* CRAY */ | |
332 | ||
ea139302 PB |
333 | /* |
334 | * getpty() | |
335 | * | |
336 | * Allocate a pty. As a side effect, the external character | |
337 | * array "line" contains the name of the slave side. | |
338 | * | |
339 | * Returns the file descriptor of the opened pty. | |
340 | */ | |
341 | char *line = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; | |
342 | ||
343 | getpty() | |
344 | { | |
345 | register int p; | |
346 | #ifndef CRAY | |
347 | register char c, *p1, *p2; | |
348 | register int i; | |
349 | ||
350 | (void) sprintf(line, "/dev/ptyXX"); | |
351 | p1 = &line[8]; | |
352 | p2 = &line[9]; | |
353 | ||
354 | for (c = 'p'; c <= 's'; c++) { | |
355 | struct stat stb; | |
356 | ||
357 | *p1 = c; | |
358 | *p2 = '0'; | |
359 | if (stat(line, &stb) < 0) | |
360 | break; | |
361 | for (i = 0; i < 16; i++) { | |
362 | *p2 = "0123456789abcdef"[i]; | |
363 | p = open(line, 2); | |
364 | if (p > 0) { | |
365 | line[5] = 't'; | |
366 | return(p); | |
367 | } | |
368 | } | |
369 | } | |
370 | #else /* CRAY */ | |
371 | register int npty; | |
372 | extern lowpty, highpty; | |
373 | ||
374 | for (npty = lowpty; npty <= highpty; npty++) { | |
375 | (void) sprintf(line, "/dev/pty/%03d", npty); | |
376 | p = open(line, 2); | |
377 | if (p < 0) | |
378 | continue; | |
379 | (void) sprintf(line, "/dev/ttyp%03d", npty); | |
380 | if (access(line, 6) == 0) | |
381 | return(p); | |
382 | else { | |
383 | /* no tty side to pty so skip it */ | |
384 | (void) close(p); | |
385 | } | |
386 | } | |
387 | #endif /* CRAY */ | |
388 | return(-1); | |
389 | } | |
390 | ||
391 | #ifdef LINEMODE | |
392 | /* | |
393 | * tty_flowmode() Find out if flow control is enabled or disabled. | |
394 | * tty_linemode() Find out if linemode (external processing) is enabled. | |
395 | * tty_setlinemod(on) Turn on/off linemode. | |
396 | * tty_isecho() Find out if echoing is turned on. | |
397 | * tty_setecho(on) Enable/disable character echoing. | |
398 | * tty_israw() Find out if terminal is in RAW mode. | |
399 | * tty_binaryin(on) Turn on/off BINARY on input. | |
400 | * tty_binaryout(on) Turn on/off BINARY on output. | |
401 | * tty_isediting() Find out if line editing is enabled. | |
402 | * tty_istrapsig() Find out if signal trapping is enabled. | |
403 | * tty_setedit(on) Turn on/off line editing. | |
404 | * tty_setsig(on) Turn on/off signal trapping. | |
4a8a7128 PB |
405 | * tty_issofttab() Find out if tab expansion is enabled. |
406 | * tty_setsofttab(on) Turn on/off soft tab expansion. | |
407 | * tty_islitecho() Find out if typed control chars are echoed literally | |
408 | * tty_setlitecho() Turn on/off literal echo of control chars | |
ea139302 PB |
409 | * tty_tspeed(val) Set transmit speed to val. |
410 | * tty_rspeed(val) Set receive speed to val. | |
411 | */ | |
412 | ||
413 | tty_flowmode() | |
414 | { | |
415 | #ifndef USE_TERMIO | |
416 | return((termbuf.tc.t_startc) > 0 && (termbuf.tc.t_stopc) > 0); | |
417 | #else | |
418 | return(termbuf.c_iflag & IXON ? 1 : 0); | |
419 | #endif | |
420 | } | |
421 | ||
422 | tty_linemode() | |
423 | { | |
424 | #ifndef USE_TERMIO | |
425 | return(termbuf.state & TS_EXTPROC); | |
426 | #else | |
427 | return(termbuf.c_lflag & EXTPROC); | |
428 | #endif | |
429 | } | |
430 | ||
431 | tty_setlinemode(on) | |
432 | int on; | |
433 | { | |
434 | #ifdef TIOCEXT | |
435 | (void) ioctl(pty, TIOCEXT, (char *)&on); | |
436 | #else /* !TIOCEXT */ | |
437 | #ifdef EXTPROC | |
438 | if (on) | |
439 | termbuf.c_lflag |= EXTPROC; | |
440 | else | |
441 | termbuf.c_lflag &= ~EXTPROC; | |
442 | #endif | |
443 | set_termbuf(); | |
444 | #endif /* TIOCEXT */ | |
445 | } | |
446 | ||
447 | tty_isecho() | |
448 | { | |
449 | #ifndef USE_TERMIO | |
450 | return (termbuf.sg.sg_flags & ECHO); | |
451 | #else | |
452 | return (termbuf.c_lflag & ECHO); | |
453 | #endif | |
454 | } | |
455 | #endif /* LINEMODE */ | |
456 | ||
457 | tty_setecho(on) | |
458 | { | |
459 | #ifndef USE_TERMIO | |
460 | if (on) | |
461 | termbuf.sg.sg_flags |= ECHO|CRMOD; | |
462 | else | |
463 | termbuf.sg.sg_flags &= ~(ECHO|CRMOD); | |
464 | #else | |
465 | if (on) | |
466 | termbuf.c_lflag |= ECHO; | |
467 | else | |
468 | termbuf.c_lflag &= ~ECHO; | |
469 | #endif | |
470 | } | |
471 | ||
472 | #if defined(LINEMODE) && defined(KLUDGELINEMODE) | |
473 | tty_israw() | |
474 | { | |
475 | #ifndef USE_TERMIO | |
476 | return(termbuf.sg.sg_flags & RAW); | |
477 | #else | |
478 | return(!(termbuf.c_lflag & ICANON)); | |
479 | #endif | |
480 | } | |
481 | #endif /* defined(LINEMODE) && defined(KLUDGELINEMODE) */ | |
482 | ||
483 | tty_binaryin(on) | |
484 | { | |
485 | #ifndef USE_TERMIO | |
486 | if (on) | |
487 | termbuf.lflags |= LPASS8; | |
488 | else | |
489 | termbuf.lflags &= ~LPASS8; | |
490 | #else | |
491 | if (on) { | |
492 | termbuf.c_lflag &= ~ISTRIP; | |
493 | } else { | |
494 | termbuf.c_lflag |= ISTRIP; | |
495 | } | |
496 | #endif | |
497 | } | |
498 | ||
499 | tty_binaryout(on) | |
500 | { | |
501 | #ifndef USE_TERMIO | |
502 | if (on) | |
503 | termbuf.lflags |= LLITOUT; | |
504 | else | |
505 | termbuf.lflags &= ~LLITOUT; | |
506 | #else | |
507 | if (on) { | |
508 | termbuf.c_cflag &= ~(CSIZE|PARENB); | |
509 | termbuf.c_cflag |= CS8; | |
510 | termbuf.c_oflag &= ~OPOST; | |
511 | } else { | |
512 | termbuf.c_cflag &= ~CSIZE; | |
513 | termbuf.c_cflag |= CS7|PARENB; | |
514 | termbuf.c_oflag |= OPOST; | |
515 | } | |
516 | #endif | |
517 | } | |
518 | ||
519 | tty_isbinaryin() | |
520 | { | |
521 | #ifndef USE_TERMIO | |
522 | return(termbuf.lflags & LPASS8); | |
523 | #else | |
053fd49d | 524 | return(!(termbuf.c_iflag & ISTRIP)); |
ea139302 PB |
525 | #endif |
526 | } | |
527 | ||
528 | tty_isbinaryout() | |
529 | { | |
530 | #ifndef USE_TERMIO | |
531 | return(termbuf.lflags & LLITOUT); | |
532 | #else | |
053fd49d | 533 | return(!(termbuf.c_oflag&OPOST)); |
ea139302 PB |
534 | #endif |
535 | } | |
536 | ||
537 | #ifdef LINEMODE | |
538 | tty_isediting() | |
539 | { | |
540 | #ifndef USE_TERMIO | |
541 | return(!(termbuf.sg.sg_flags & (CBREAK|RAW))); | |
542 | #else | |
543 | return(termbuf.c_lflag & ICANON); | |
544 | #endif | |
545 | } | |
546 | ||
547 | tty_istrapsig() | |
548 | { | |
549 | #ifndef USE_TERMIO | |
550 | return(!(termbuf.sg.sg_flags&RAW)); | |
551 | #else | |
552 | return(termbuf.c_lflag & ISIG); | |
553 | #endif | |
554 | } | |
555 | ||
556 | tty_setedit(on) | |
557 | int on; | |
558 | { | |
559 | #ifndef USE_TERMIO | |
560 | if (on) | |
561 | termbuf.sg.sg_flags &= ~CBREAK; | |
562 | else | |
563 | termbuf.sg.sg_flags |= CBREAK; | |
564 | #else | |
565 | if (on) | |
566 | termbuf.c_lflag |= ICANON; | |
567 | else | |
568 | termbuf.c_lflag &= ~ICANON; | |
569 | #endif | |
570 | } | |
571 | ||
572 | tty_setsig(on) | |
573 | int on; | |
574 | { | |
575 | #ifndef USE_TERMIO | |
576 | if (on) | |
577 | ; | |
578 | #else | |
579 | if (on) | |
580 | termbuf.c_lflag |= ISIG; | |
581 | else | |
582 | termbuf.c_lflag &= ~ISIG; | |
583 | #endif | |
584 | } | |
585 | #endif /* LINEMODE */ | |
586 | ||
4a8a7128 PB |
587 | tty_issofttab() |
588 | { | |
589 | #ifndef USE_TERMIO | |
590 | return (termbuf.sg.sg_flags & XTABS); | |
591 | #else | |
592 | # ifdef OXTABS | |
593 | return (termbuf.c_oflag & OXTABS); | |
594 | # endif | |
595 | # ifdef TABDLY | |
596 | return ((termbuf.c_oflag & TABDLY) == TAB3); | |
597 | # endif | |
598 | #endif | |
599 | } | |
600 | ||
601 | tty_setsofttab(on) | |
602 | int on; | |
603 | { | |
604 | #ifndef USE_TERMIO | |
605 | if (on) | |
606 | termbuf.sg.sg_flags |= XTABS; | |
607 | else | |
608 | termbuf.sg.sg_flags &= ~XTABS; | |
609 | #else | |
610 | if (on) { | |
611 | # ifdef OXTABS | |
612 | termbuf.c_oflag |= OXTABS; | |
613 | # endif | |
614 | # ifdef TABDLY | |
615 | termbuf.c_oflag &= ~TABDLY; | |
616 | termbuf.c_oflag |= TAB3; | |
617 | # endif | |
618 | } else { | |
619 | # ifdef OXTABS | |
620 | termbuf.c_oflag &= ~OXTABS; | |
621 | # endif | |
622 | # ifdef TABDLY | |
623 | termbuf.c_oflag &= ~TABDLY; | |
624 | termbuf.c_oflag |= TAB0; | |
625 | # endif | |
626 | } | |
627 | #endif | |
628 | } | |
629 | ||
630 | tty_islitecho() | |
631 | { | |
632 | #ifndef USE_TERMIO | |
633 | return (!(termbuf.sg.sg_flags & CTLECH)); | |
634 | #else | |
635 | # ifdef ECHOCTL | |
636 | return (!(termbuf.c_lflag & ECHOCTL)); | |
637 | # endif | |
638 | # ifdef TCTLECH | |
639 | return (!(termbuf.c_lflag & TCTLECH)); | |
640 | # endif | |
641 | # if !defined(ECHOCTL) && !defined(TCTLECH) | |
642 | return (0); /* assumes ctl chars are echoed '^x' */ | |
643 | # endif | |
644 | #endif | |
645 | } | |
646 | ||
647 | tty_setlitecho(on) | |
648 | int on; | |
649 | { | |
650 | #ifndef USE_TERMIO | |
651 | if (on) | |
652 | termbuf.sg.sg_flags &= ~CTLECH; | |
653 | else | |
654 | termbuf.sg.sg_flags |= CTLECH; | |
655 | #else | |
656 | # ifdef ECHOCTL | |
657 | if (on) | |
658 | termbuf.c_lflag &= ~ECHOCTL; | |
659 | else | |
660 | termbuf.c_lflag |= ECHOCTL; | |
661 | # endif | |
662 | # ifdef TCTLECH | |
663 | if (on) | |
664 | termbuf.c_lflag &= ~TCTLECH; | |
665 | else | |
666 | termbuf.c_lflag |= TCTLECH; | |
667 | # endif | |
668 | #endif | |
669 | } | |
670 | ||
ea139302 PB |
671 | /* |
672 | * A table of available terminal speeds | |
673 | */ | |
674 | struct termspeeds { | |
675 | int speed; | |
676 | int value; | |
677 | } termspeeds[] = { | |
678 | { 0, B0 }, { 50, B50 }, { 75, B75 }, | |
679 | { 110, B110 }, { 134, B134 }, { 150, B150 }, | |
680 | { 200, B200 }, { 300, B300 }, { 600, B600 }, | |
681 | { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, | |
682 | { 4800, B4800 }, { 9600, B9600 }, { 19200, B9600 }, | |
683 | { 38400, B9600 }, { -1, B9600 } | |
684 | }; | |
685 | ||
686 | tty_tspeed(val) | |
687 | { | |
688 | register struct termspeeds *tp; | |
689 | ||
690 | for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) | |
691 | ; | |
692 | #ifndef USE_TERMIO | |
693 | termbuf.sg.sg_ospeed = tp->value; | |
694 | #else | |
4a8a7128 | 695 | # ifdef CBAUD |
ea139302 PB |
696 | termbuf.c_cflag &= ~CBAUD; |
697 | termbuf.c_cflag |= tp->value; | |
698 | # else | |
699 | termbuf.c_ospeed = tp->value; | |
700 | # endif | |
701 | #endif | |
702 | } | |
703 | ||
704 | tty_rspeed(val) | |
705 | { | |
706 | register struct termspeeds *tp; | |
707 | ||
708 | for (tp = termspeeds; (tp->speed != -1) && (val > tp->speed); tp++) | |
709 | ; | |
710 | #ifndef USE_TERMIO | |
711 | termbuf.sg.sg_ispeed = tp->value; | |
712 | #else | |
4a8a7128 | 713 | # ifdef CBAUD |
ea139302 PB |
714 | termbuf.c_cflag &= ~CBAUD; |
715 | termbuf.c_cflag |= tp->value; | |
716 | # else | |
717 | termbuf.c_ispeed = tp->value; | |
718 | # endif | |
719 | #endif | |
720 | } | |
721 | ||
ed8f31c1 | 722 | #if defined(CRAY2) && defined(UNICOS5) |
ea139302 PB |
723 | tty_isnewmap() |
724 | { | |
725 | return((termbuf.c_oflag & OPOST) && (termbuf.c_oflag & ONLCR) && | |
726 | !(termbuf.c_oflag & ONLRET)); | |
727 | } | |
728 | #endif | |
729 | ||
730 | #ifdef CRAY | |
731 | # ifndef NEWINIT | |
732 | extern struct utmp wtmp; | |
733 | extern char wtmpf[]; | |
734 | # else /* NEWINIT */ | |
735 | int gotalarm; | |
ed8f31c1 PB |
736 | /* ARGSUSED */ |
737 | void | |
738 | nologinproc(sig) | |
739 | int sig; | |
ea139302 PB |
740 | { |
741 | gotalarm++; | |
742 | } | |
743 | # endif /* NEWINIT */ | |
744 | #endif /* CRAY */ | |
745 | ||
746 | /* | |
747 | * getptyslave() | |
748 | * | |
749 | * Open the slave side of the pty, and do any initialization | |
750 | * that is necessary. The return value is a file descriptor | |
751 | * for the slave side. | |
752 | */ | |
753 | getptyslave() | |
754 | { | |
755 | register int t = -1; | |
756 | ||
757 | #ifndef CRAY | |
758 | /* | |
759 | * Disassociate self from control terminal and open ttyp side. | |
760 | * Set important flags on ttyp and ptyp. | |
761 | */ | |
762 | t = open(_PATH_TTY, O_RDWR); | |
763 | if (t >= 0) { | |
764 | (void) ioctl(t, TIOCNOTTY, (char *)0); | |
765 | (void) close(t); | |
766 | } | |
767 | ||
768 | t = open(line, O_RDWR); | |
769 | if (t < 0) | |
770 | fatalperror(net, line); | |
771 | if (fchmod(t, 0)) | |
772 | fatalperror(net, line); | |
4a8a7128 | 773 | #if BSD <= 43 |
ea139302 PB |
774 | (void) signal(SIGHUP, SIG_IGN); |
775 | vhangup(); | |
776 | (void) signal(SIGHUP, SIG_DFL); | |
777 | t = open(line, O_RDWR); | |
778 | if (t < 0) | |
779 | fatalperror(net, line); | |
4a8a7128 | 780 | #endif |
ea139302 PB |
781 | |
782 | init_termbuf(); | |
783 | #ifndef USE_TERMIO | |
ed8f31c1 | 784 | termbuf.sg.sg_flags |= CRMOD|ANYP|ECHO|XTABS; |
ea139302 PB |
785 | termbuf.sg.sg_ospeed = termbuf.sg.sg_ispeed = B9600; |
786 | #else | |
787 | termbuf.c_lflag |= ECHO; | |
4a8a7128 PB |
788 | #ifndef OXTABS |
789 | #define OXTABS 0 | |
790 | #endif | |
ea139302 PB |
791 | termbuf.c_oflag |= ONLCR|OXTABS; |
792 | termbuf.c_iflag |= ICRNL; | |
793 | termbuf.c_iflag &= ~IXOFF; | |
4a8a7128 PB |
794 | # ifdef CBAUD |
795 | termbuf.c_cflag &= ~CBAUD; | |
796 | termbuf.c_cflag |= B9600; | |
797 | # else /* CBAUD */ | |
ea139302 | 798 | termbuf.c_ospeed = termbuf.c_ispeed = B9600; |
4a8a7128 | 799 | # endif /* CBAUD */ |
ea139302 PB |
800 | #endif |
801 | set_termbuf(); | |
802 | #else /* CRAY */ | |
803 | (void) chown(line, 0, 0); | |
804 | (void) chmod(line, 0600); | |
805 | #endif /* CRAY */ | |
806 | return(t); | |
807 | } | |
808 | ||
809 | #ifdef NEWINIT | |
810 | char *gen_id = "fe"; | |
811 | #endif | |
812 | ||
813 | /* | |
814 | * startslave(t, host) | |
815 | * | |
816 | * Given a file descriptor (t) for a tty, and a hostname, do whatever | |
817 | * is necessary to startup the login process on the slave side of the pty. | |
818 | */ | |
819 | ||
820 | /* ARGSUSED */ | |
821 | startslave(t, host) | |
822 | int t; | |
823 | char *host; | |
824 | { | |
825 | register int i; | |
826 | long time(); | |
827 | ||
828 | #ifndef NEWINIT | |
829 | # ifdef CRAY | |
830 | utmp_sig_init(); | |
831 | # endif /* CRAY */ | |
832 | ||
833 | if ((i = fork()) < 0) | |
834 | fatalperror(net, "fork"); | |
835 | if (i) { | |
836 | # ifdef CRAY | |
837 | /* | |
838 | * Cray parent will create utmp entry for child and send | |
839 | * signal to child to tell when done. Child waits for signal | |
840 | * before doing anything important. | |
841 | */ | |
842 | register int pid = i; | |
843 | ||
844 | setpgrp(); | |
4a8a7128 | 845 | utmp_sig_reset(); /* reset handler to default */ |
ea139302 PB |
846 | /* |
847 | * Create utmp entry for child | |
848 | */ | |
849 | (void) time(&wtmp.ut_time); | |
850 | wtmp.ut_type = LOGIN_PROCESS; | |
851 | wtmp.ut_pid = pid; | |
852 | SCPYN(wtmp.ut_user, "LOGIN"); | |
853 | SCPYN(wtmp.ut_host, host); | |
854 | SCPYN(wtmp.ut_line, line + sizeof("/dev/") - 1); | |
855 | SCPYN(wtmp.ut_id, wtmp.ut_line+3); | |
856 | pututline(&wtmp); | |
857 | endutent(); | |
858 | if ((i = open(wtmpf, O_WRONLY|O_APPEND)) >= 0) { | |
859 | (void) write(i, (char *)&wtmp, sizeof(struct utmp)); | |
860 | (void) close(i); | |
861 | } | |
862 | utmp_sig_notify(pid); | |
863 | # endif /* CRAY */ | |
864 | (void) close(t); | |
865 | } else { | |
866 | start_login(t, host); | |
867 | /*NOTREACHED*/ | |
868 | } | |
869 | #else /* NEWINIT */ | |
870 | ||
871 | extern char *ptyip; | |
872 | struct init_request request; | |
ed8f31c1 | 873 | void nologinproc(); |
ea139302 PB |
874 | register int n; |
875 | ||
876 | /* | |
877 | * Init will start up login process if we ask nicely. We only wait | |
878 | * for it to start up and begin normal telnet operation. | |
879 | */ | |
880 | if ((i = open(INIT_FIFO, O_WRONLY)) < 0) { | |
881 | char tbuf[128]; | |
882 | (void) sprintf(tbuf, "Can't open %s\n", INIT_FIFO); | |
883 | fatalperror(net, tbuf); | |
884 | } | |
885 | memset((char *)&request, 0, sizeof(request)); | |
886 | request.magic = INIT_MAGIC; | |
887 | SCPYN(request.gen_id, gen_id); | |
888 | SCPYN(request.tty_id, &line[8]); | |
889 | SCPYN(request.host, host); | |
4a8a7128 PB |
890 | SCPYN(request.term_type, terminaltype); |
891 | #if !defined(UNICOS5) | |
ed8f31c1 PB |
892 | request.signal = SIGCLD; |
893 | request.pid = getpid(); | |
894 | #endif | |
4a8a7128 PB |
895 | #ifdef BFTPDAEMON |
896 | /* | |
897 | * Are we working as the bftp daemon? | |
898 | */ | |
899 | if (bftpd) { | |
900 | SCPYN(request.exec_name, BFTPPATH); | |
901 | } | |
902 | #endif /* BFTPDAEMON */ | |
ea139302 PB |
903 | if (write(i, (char *)&request, sizeof(request)) < 0) { |
904 | char tbuf[128]; | |
905 | (void) sprintf(tbuf, "Can't write to %s\n", INIT_FIFO); | |
906 | fatalperror(net, tbuf); | |
907 | } | |
908 | (void) close(i); | |
909 | (void) signal(SIGALRM, nologinproc); | |
910 | for (i = 0; ; i++) { | |
ed8f31c1 | 911 | char tbuf[128]; |
ea139302 PB |
912 | alarm(15); |
913 | n = read(pty, ptyip, BUFSIZ); | |
914 | if (i == 3 || n >= 0 || !gotalarm) | |
915 | break; | |
916 | gotalarm = 0; | |
ed8f31c1 PB |
917 | sprintf(tbuf, "telnetd: waiting for /etc/init to start login process on %s\r\n", line); |
918 | (void) write(net, tbuf, strlen(tbuf)); | |
ea139302 PB |
919 | } |
920 | if (n < 0 && gotalarm) | |
921 | fatal(net, "/etc/init didn't start login process"); | |
922 | pcc += n; | |
923 | alarm(0); | |
924 | (void) signal(SIGALRM, SIG_DFL); | |
925 | ||
ea139302 PB |
926 | return; |
927 | #endif /* NEWINIT */ | |
928 | } | |
929 | ||
ea139302 | 930 | char *envinit[3]; |
4a8a7128 PB |
931 | extern char **environ; |
932 | ||
933 | init_env() | |
934 | { | |
935 | extern char *getenv(); | |
936 | char **envp; | |
937 | ||
938 | envp = envinit; | |
939 | if (*envp = getenv("TZ")) | |
940 | *envp++ -= 3; | |
941 | #ifdef CRAY | |
942 | else | |
943 | *envp++ = "TZ=GMT0"; | |
944 | #endif | |
945 | *envp = 0; | |
946 | environ = envinit; | |
947 | } | |
948 | ||
949 | #ifdef CRAY | |
950 | /* | |
951 | * These are environment variable that we | |
952 | * don't put on the argument line. | |
953 | */ | |
954 | char *invalid[] = { | |
955 | "USER=", /* Set up by login */ | |
956 | "HOME=", /* Set up by login */ | |
957 | "LOGNAME=", /* Set up by login */ | |
958 | "TMPDIR=", /* Set up by login */ | |
959 | "SHELL=", /* Set up by login */ | |
960 | "PATH=", /* Set up by login */ | |
961 | "MAIL=", /* Set up by login */ | |
962 | "TZ=", /* Login gets it from the environment */ | |
963 | "TERM=", /* Login gets it from the environment */ | |
964 | 0 | |
965 | }; | |
966 | #endif | |
967 | ||
968 | #ifndef NEWINIT | |
ea139302 PB |
969 | |
970 | /* | |
971 | * start_login(t, host) | |
972 | * | |
973 | * Assuming that we are now running as a child processes, this | |
974 | * function will turn us into the login process. | |
975 | */ | |
976 | ||
977 | start_login(t, host) | |
978 | int t; | |
979 | char *host; | |
980 | { | |
4a8a7128 PB |
981 | register char *cp; |
982 | register char **argv; | |
983 | char **addarg(); | |
ea139302 | 984 | #ifdef CRAY |
4a8a7128 | 985 | register char **cpp, **cpp2; |
ea139302 PB |
986 | utmp_sig_wait(); |
987 | # ifndef TCVHUP | |
988 | setpgrp(); | |
989 | # endif | |
990 | t = open(line, 2); /* open ttyp */ | |
991 | if (t < 0) | |
992 | fatalperror(net, line); | |
993 | # ifdef TCVHUP | |
994 | /* | |
995 | * Hangup anybody else using this ttyp, then reopen it for | |
996 | * ourselves. | |
997 | */ | |
998 | (void) chown(line, 0, 0); | |
999 | (void) chmod(line, 0600); | |
1000 | (void) signal(SIGHUP, SIG_IGN); | |
1001 | (void) ioctl(t, TCVHUP, (char *)0); | |
1002 | (void) signal(SIGHUP, SIG_DFL); | |
1003 | setpgrp(); | |
1004 | i = open(line, 2); | |
1005 | if (i < 0) | |
1006 | fatalperror(net, line); | |
1007 | (void) close(t); | |
1008 | t = i; | |
1009 | # endif /* TCVHUP */ | |
1010 | /* | |
1011 | * set ttyp modes as we like them to be | |
1012 | */ | |
1013 | init_termbuf(); | |
ed8f31c1 | 1014 | termbuf.c_oflag = OPOST|ONLCR|TAB3; |
ea139302 PB |
1015 | termbuf.c_iflag = IGNPAR|ISTRIP|ICRNL|IXON; |
1016 | termbuf.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK; | |
1017 | termbuf.c_cflag = EXTB|HUPCL|CS8; | |
1018 | set_termbuf(); | |
1019 | #endif /* CRAY */ | |
1020 | ||
1021 | /* | |
1022 | * set up standard paths before forking to login | |
1023 | */ | |
9633556e MT |
1024 | #if BSD > 43 |
1025 | if (login_tty(t) == -1) | |
1026 | fatalperror(net, "login_tty"); | |
1027 | #else | |
ea139302 PB |
1028 | (void) dup2(t, 0); |
1029 | (void) dup2(t, 1); | |
1030 | (void) dup2(t, 2); | |
1031 | (void) close(t); | |
9633556e MT |
1032 | #endif |
1033 | if (net > 2) | |
1034 | (void) close(net); | |
1035 | if (pty > 2) | |
1036 | (void) close(pty); | |
ea139302 PB |
1037 | /* |
1038 | * -h : pass on name of host. | |
1039 | * WARNING: -h is accepted by login if and only if | |
1040 | * getuid() == 0. | |
1041 | * -p : don't clobber the environment (so terminal type stays set). | |
1042 | */ | |
4a8a7128 PB |
1043 | argv = addarg(0, "login"); |
1044 | argv = addarg(argv, "-h"); | |
1045 | argv = addarg(argv, host); | |
1046 | #if !defined(CRAY) && !defined(NO_LOGIN_P) | |
1047 | argv = addarg(argv, "-p"); | |
1048 | #endif | |
1049 | #ifdef BFTPDAEMON | |
1050 | /* | |
1051 | * Are we working as the bftp daemon? If so, then ask login | |
1052 | * to start bftp instead of shell. | |
1053 | */ | |
1054 | if (bftpd) { | |
1055 | argv = addarg(argv, "-e"); | |
1056 | argv = addarg(argv, BFTPPATH); | |
1057 | } else | |
1058 | #endif | |
1059 | if (getenv("USER")) { | |
1060 | argv = addarg(argv, getenv("USER")); | |
1061 | } | |
1062 | #ifdef CRAY | |
1063 | for (cpp = environ; *cpp; cpp++) { | |
1064 | for (cpp2 = invalid; *cpp2; cpp2++) | |
1065 | if (strncmp(*cpp2, *cpp, strlen(*cpp2)) == 0) | |
1066 | break; | |
1067 | if (*cpp2) | |
1068 | continue; | |
1069 | argv = addarg(argv, *cpp); | |
1070 | } | |
ea139302 | 1071 | #endif |
4a8a7128 PB |
1072 | |
1073 | execv(_PATH_LOGIN, argv); | |
1074 | ||
ea139302 PB |
1075 | syslog(LOG_ERR, "%s: %m\n", _PATH_LOGIN); |
1076 | fatalperror(net, _PATH_LOGIN); | |
1077 | /*NOTREACHED*/ | |
1078 | } | |
4a8a7128 PB |
1079 | |
1080 | char ** | |
1081 | addarg(argv, val) | |
1082 | register char **argv; | |
1083 | register char *val; | |
1084 | { | |
1085 | register char **cpp; | |
1086 | char *malloc(); | |
1087 | ||
1088 | if (argv == NULL) { | |
1089 | /* | |
1090 | * 10 entries, a leading length, and a null | |
1091 | */ | |
1092 | argv = (char **)malloc(sizeof(*argv) * 12); | |
1093 | if (argv == NULL) | |
1094 | return(NULL); | |
1095 | *argv++ = (char *)10; | |
1096 | *argv = (char *)0; | |
1097 | } | |
1098 | for (cpp = argv; *cpp; cpp++) | |
1099 | ; | |
1100 | if (cpp == &argv[(int)argv[-1]]) { | |
1101 | --argv; | |
1102 | *argv = (char *)((int)(*argv) + 10); | |
1103 | argv = (char **)realloc(argv, (int)(*argv) + 2); | |
1104 | if (argv == NULL) | |
1105 | return(NULL); | |
1106 | argv++; | |
1107 | cpp = &argv[(int)argv[-1] - 10]; | |
1108 | } | |
1109 | *cpp++ = val; | |
1110 | *cpp = 0; | |
1111 | return(argv); | |
1112 | } | |
ea139302 PB |
1113 | #endif NEWINIT |
1114 | ||
1115 | /* | |
1116 | * cleanup() | |
1117 | * | |
1118 | * This is the routine to call when we are all through, to | |
1119 | * clean up anything that needs to be cleaned up. | |
1120 | */ | |
1121 | cleanup() | |
1122 | { | |
1123 | ||
1124 | #ifndef CRAY | |
1125 | # if BSD > 43 | |
1126 | char *p; | |
1127 | ||
1128 | p = line + sizeof("/dev/") - 1; | |
1129 | if (logout(p)) | |
1130 | logwtmp(p, "", ""); | |
1131 | (void)chmod(line, 0666); | |
1132 | (void)chown(line, 0, 0); | |
1133 | *p = 'p'; | |
1134 | (void)chmod(line, 0666); | |
1135 | (void)chown(line, 0, 0); | |
1136 | # else | |
1137 | rmut(); | |
1138 | vhangup(); /* XXX */ | |
1139 | # endif | |
1140 | (void) shutdown(net, 2); | |
1141 | #else /* CRAY */ | |
1142 | # ifndef NEWINIT | |
1143 | rmut(line); | |
1144 | (void) shutdown(net, 2); | |
1145 | kill(0, SIGHUP); | |
1146 | # else /* NEWINIT */ | |
1147 | (void) shutdown(net, 2); | |
ea139302 PB |
1148 | # endif /* NEWINT */ |
1149 | #endif /* CRAY */ | |
1150 | exit(1); | |
1151 | } | |
1152 | ||
1153 | #if defined(CRAY) && !defined(NEWINIT) | |
1154 | /* | |
1155 | * _utmp_sig_rcv | |
1156 | * utmp_sig_init | |
1157 | * utmp_sig_wait | |
1158 | * These three functions are used to coordinate the handling of | |
1159 | * the utmp file between the server and the soon-to-be-login shell. | |
1160 | * The server actually creates the utmp structure, the child calls | |
1161 | * utmp_sig_wait(), until the server calls utmp_sig_notify() and | |
1162 | * signals the future-login shell to proceed. | |
1163 | */ | |
1164 | static int caught=0; /* NZ when signal intercepted */ | |
1165 | static void (*func)(); /* address of previous handler */ | |
1166 | ||
1167 | void | |
1168 | _utmp_sig_rcv(sig) | |
1169 | int sig; | |
1170 | { | |
1171 | caught = 1; | |
1172 | (void) signal(SIGUSR1, func); | |
1173 | } | |
1174 | ||
1175 | utmp_sig_init() | |
1176 | { | |
1177 | /* | |
1178 | * register signal handler for UTMP creation | |
1179 | */ | |
1180 | if ((int)(func = signal(SIGUSR1, _utmp_sig_rcv)) == -1) | |
1181 | fatalperror(net, "telnetd/signal"); | |
1182 | } | |
1183 | ||
4a8a7128 PB |
1184 | utmp_sig_reset() |
1185 | { | |
1186 | (void) signal(SIGUSR1, func); /* reset handler to default */ | |
1187 | } | |
1188 | ||
ea139302 PB |
1189 | utmp_sig_wait() |
1190 | { | |
1191 | /* | |
1192 | * Wait for parent to write our utmp entry. | |
1193 | */ | |
1194 | sigoff(); | |
1195 | while (caught == 0) { | |
1196 | pause(); /* wait until we get a signal (sigon) */ | |
1197 | sigoff(); /* turn off signals while we check caught */ | |
1198 | } | |
1199 | sigon(); /* turn on signals again */ | |
1200 | } | |
1201 | ||
1202 | utmp_sig_notify(pid) | |
1203 | { | |
1204 | kill(pid, SIGUSR1); | |
1205 | } | |
1206 | #endif /* defined(CRAY) && !defined(NEWINIT) */ | |
1207 | ||
1208 | /* | |
1209 | * rmut() | |
1210 | * | |
1211 | * This is the function called by cleanup() to | |
1212 | * remove the utmp entry for this person. | |
1213 | */ | |
1214 | ||
1215 | #if !defined(CRAY) && BSD <= 43 | |
1216 | rmut() | |
1217 | { | |
1218 | register f; | |
1219 | int found = 0; | |
1220 | struct utmp *u, *utmp; | |
1221 | int nutmp; | |
1222 | struct stat statbf; | |
1223 | char *malloc(); | |
1224 | long time(); | |
1225 | off_t lseek(); | |
1226 | ||
1227 | f = open(utmpf, O_RDWR); | |
1228 | if (f >= 0) { | |
1229 | (void) fstat(f, &statbf); | |
1230 | utmp = (struct utmp *)malloc((unsigned)statbf.st_size); | |
1231 | if (!utmp) | |
1232 | syslog(LOG_ERR, "utmp malloc failed"); | |
1233 | if (statbf.st_size && utmp) { | |
1234 | nutmp = read(f, (char *)utmp, (int)statbf.st_size); | |
1235 | nutmp /= sizeof(struct utmp); | |
1236 | ||
1237 | for (u = utmp ; u < &utmp[nutmp] ; u++) { | |
1238 | if (SCMPN(u->ut_line, line+5) || | |
1239 | u->ut_name[0]==0) | |
1240 | continue; | |
1241 | (void) lseek(f, ((long)u)-((long)utmp), L_SET); | |
1242 | SCPYN(u->ut_name, ""); | |
1243 | SCPYN(u->ut_host, ""); | |
1244 | (void) time(&u->ut_time); | |
1245 | (void) write(f, (char *)u, sizeof(wtmp)); | |
1246 | found++; | |
1247 | } | |
1248 | } | |
1249 | (void) close(f); | |
1250 | } | |
1251 | if (found) { | |
1252 | f = open(wtmpf, O_WRONLY|O_APPEND); | |
1253 | if (f >= 0) { | |
1254 | SCPYN(wtmp.ut_line, line+5); | |
1255 | SCPYN(wtmp.ut_name, ""); | |
1256 | SCPYN(wtmp.ut_host, ""); | |
1257 | (void) time(&wtmp.ut_time); | |
1258 | (void) write(f, (char *)&wtmp, sizeof(wtmp)); | |
1259 | (void) close(f); | |
1260 | } | |
1261 | } | |
1262 | (void) chmod(line, 0666); | |
1263 | (void) chown(line, 0, 0); | |
1264 | line[strlen("/dev/")] = 'p'; | |
1265 | (void) chmod(line, 0666); | |
1266 | (void) chown(line, 0, 0); | |
1267 | } /* end of rmut */ | |
1268 | #endif /* CRAY */ |