… | |
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54 | #endif |
54 | #endif |
55 | |
55 | |
56 | #include <cstdio> |
56 | #include <cstdio> |
57 | #include <grp.h> |
57 | #include <grp.h> |
58 | |
58 | |
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59 | #include "ptytty.h" |
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60 | |
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61 | ///////////////////////////////////////////////////////////////////////////// |
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62 | |
59 | /* ------------------------------------------------------------------------- * |
63 | /* ------------------------------------------------------------------------- * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
64 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
61 | * ------------------------------------------------------------------------- */ |
65 | * ------------------------------------------------------------------------- */ |
62 | /* |
66 | /* |
63 | * Returns pty file descriptor, or -1 on failure |
67 | * Returns pty file descriptor, or -1 on failure |
… | |
… | |
218 | /*----------------------------------------------------------------------*/ |
222 | /*----------------------------------------------------------------------*/ |
219 | /* |
223 | /* |
220 | * Make our tty a controlling tty so that /dev/tty points to us |
224 | * Make our tty a controlling tty so that /dev/tty points to us |
221 | */ |
225 | */ |
222 | static int |
226 | static int |
223 | control_tty (int fd_tty, const char *ttydev) |
227 | control_tty (int fd_tty) |
224 | { |
228 | { |
225 | #ifndef __QNX__ |
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226 | int fd; |
229 | int fd; |
227 | |
230 | |
228 | /* ---------------------------------------- */ |
231 | /* ---------------------------------------- */ |
229 | # ifdef HAVE_SETSID |
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230 | setsid (); |
232 | setsid (); |
231 | # endif |
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232 | # if defined(HAVE_SETPGID) |
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233 | setpgid (0, 0); |
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234 | # elif defined(HAVE_SETPGRP) |
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235 | setpgrp (0, 0); |
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236 | # endif |
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237 | |
233 | |
238 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
239 | # ifdef TIOCNOTTY |
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240 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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241 | if (fd >= 0) |
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242 | { |
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243 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
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244 | close (fd); |
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245 | } |
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246 | # endif |
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247 | |
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248 | /* ---------------------------------------- */ |
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249 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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250 | if (fd >= 0) |
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251 | close (fd); /* ouch: still have controlling tty */ |
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252 | |
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253 | /* ---------------------------------------- */ |
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254 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
235 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
255 | /* |
236 | /* |
256 | * Push STREAMS modules: |
237 | * Push STREAMS modules: |
257 | * ptem: pseudo-terminal hardware emulation module. |
238 | * ptem: pseudo-terminal hardware emulation module. |
258 | * ldterm: standard terminal line discipline. |
239 | * ldterm: standard terminal line discipline. |
259 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
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267 | * documentation is really unclear about whether it is any close () on |
248 | * documentation is really unclear about whether it is any close () on |
268 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
249 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
269 | * close () - on the master side which causes a hang up to be sent |
250 | * close () - on the master side which causes a hang up to be sent |
270 | * through - Geoff Wing |
251 | * through - Geoff Wing |
271 | */ |
252 | */ |
272 | # ifdef HAVE_ISASTREAM |
253 | # ifdef HAVE_ISASTREAM |
273 | if (isastream (fd_tty) == 1) |
254 | if (isastream (fd_tty) == 1) |
274 | # endif |
255 | # endif |
275 | { |
256 | { |
276 | ioctl (fd_tty, I_PUSH, "ptem"); |
257 | ioctl (fd_tty, I_PUSH, "ptem"); |
277 | ioctl (fd_tty, I_PUSH, "ldterm"); |
258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
278 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
279 | } |
260 | } |
280 | #endif |
261 | # endif |
281 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
282 | # if defined(TIOCSCTTY) |
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283 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
263 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
284 | # elif defined(TIOCSETCTTY) |
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285 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
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286 | # else |
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287 | fd = open (ttydev, O_RDWR); |
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288 | if (fd >= 0) |
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289 | close (fd); |
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290 | # endif |
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291 | /* ---------------------------------------- */ |
264 | /* ---------------------------------------- */ |
292 | fd = open ("/dev/tty", O_WRONLY); |
265 | fd = open ("/dev/tty", O_WRONLY); |
293 | if (fd < 0) |
266 | if (fd < 0) |
294 | return -1; /* fatal */ |
267 | return -1; /* fatal */ |
295 | close (fd); |
268 | close (fd); |
296 | /* ---------------------------------------- */ |
269 | /* ---------------------------------------- */ |
297 | #endif /* ! __QNX__ */ |
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298 | |
270 | |
299 | return 0; |
271 | return 0; |
300 | } |
272 | } |
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273 | |
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274 | void |
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275 | rxvt_ptytty::close_tty () |
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276 | { |
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277 | if (tty < 0) |
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278 | return; |
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279 | |
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280 | close (tty); |
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281 | tty = -1; |
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282 | } |
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283 | |
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284 | bool |
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285 | rxvt_ptytty::make_controlling_tty () |
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286 | { |
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287 | return control_tty (tty) >= 0; |
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288 | } |
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289 | |
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290 | void |
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291 | rxvt_ptytty::set_utf8_mode (bool on) |
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292 | { |
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293 | #ifdef IUTF8 |
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294 | if (pty < 0) |
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295 | return; |
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296 | |
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297 | struct termios tio; |
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298 | |
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299 | if (tcgetattr (pty, &tio) != -1) |
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300 | { |
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301 | tcflag_t new_cflag = tio.c_iflag; |
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302 | |
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303 | if (on) |
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304 | new_cflag |= IUTF8; |
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305 | else |
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306 | new_cflag &= ~IUTF8; |
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307 | |
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308 | if (new_cflag != tio.c_iflag) |
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309 | { |
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310 | tio.c_iflag = new_cflag; |
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311 | tcsetattr (pty, TCSANOW, &tio); |
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312 | } |
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313 | } |
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314 | #endif |
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315 | } |
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316 | |
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317 | ///////////////////////////////////////////////////////////////////////////// |
301 | |
318 | |
302 | #ifndef NO_SETOWNER_TTYDEV |
319 | #ifndef NO_SETOWNER_TTYDEV |
303 | static struct ttyconf { |
320 | static struct ttyconf { |
304 | gid_t gid; |
321 | gid_t gid; |
305 | mode_t mode; |
322 | mode_t mode; |
… | |
… | |
321 | gid = getgid (); |
338 | gid = getgid (); |
322 | } |
339 | } |
323 | } |
340 | } |
324 | } ttyconf; |
341 | } ttyconf; |
325 | |
342 | |
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343 | ///////////////////////////////////////////////////////////////////////////// |
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344 | |
326 | void |
345 | void |
327 | rxvt_ptytty::privileges (rxvt_privaction action) |
346 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
328 | { |
347 | { |
329 | if (!name || !*name) |
348 | if (!name || !*name) |
330 | return; |
349 | return; |
331 | |
350 | |
332 | rxvt_privileges (RESTORE); |
351 | rxvt_privileges (RESTORE); |
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365 | |
384 | |
366 | rxvt_privileges (IGNORE); |
385 | rxvt_privileges (IGNORE); |
367 | } |
386 | } |
368 | #endif |
387 | #endif |
369 | |
388 | |
370 | rxvt_ptytty::rxvt_ptytty () |
389 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
371 | { |
390 | { |
372 | pty = tty = -1; |
391 | pty = tty = -1; |
373 | name = 0; |
392 | name = 0; |
374 | #ifndef NO_SETOWNER_TTYDEV |
393 | #ifndef NO_SETOWNER_TTYDEV |
375 | saved = false; |
394 | saved = false; |
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377 | #if UTMP_SUPPORT |
396 | #if UTMP_SUPPORT |
378 | cmd_pid = 0; |
397 | cmd_pid = 0; |
379 | #endif |
398 | #endif |
380 | } |
399 | } |
381 | |
400 | |
382 | rxvt_ptytty::~rxvt_ptytty () |
401 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
383 | { |
402 | { |
384 | logout (); |
403 | logout (); |
385 | put (); |
404 | put (); |
386 | } |
405 | } |
387 | |
406 | |
388 | void |
407 | void |
389 | |
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390 | rxvt_ptytty::close_tty () |
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391 | { |
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392 | if (tty < 0) |
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393 | return; |
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394 | |
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395 | close (tty); |
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396 | tty = -1; |
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397 | } |
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398 | |
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399 | void |
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400 | rxvt_ptytty::put () |
408 | rxvt_ptytty_unix::put () |
401 | { |
409 | { |
402 | #ifndef NO_SETOWNER_TTYDEV |
410 | #ifndef NO_SETOWNER_TTYDEV |
403 | privileges (RESTORE); |
411 | privileges (RESTORE); |
404 | #endif |
412 | #endif |
405 | |
413 | |
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410 | pty = tty = -1; |
418 | pty = tty = -1; |
411 | name = 0; |
419 | name = 0; |
412 | } |
420 | } |
413 | |
421 | |
414 | bool |
422 | bool |
415 | rxvt_ptytty::make_controlling_tty () |
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416 | { |
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417 | return control_tty (tty, name) >= 0; |
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418 | } |
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419 | |
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420 | bool |
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421 | rxvt_ptytty::get () |
423 | rxvt_ptytty_unix::get () |
422 | { |
424 | { |
423 | /* get master (pty) */ |
425 | /* get master (pty) */ |
424 | if ((pty = get_pty (&tty, &name)) < 0) |
426 | if ((pty = get_pty (&tty, &name)) < 0) |
425 | return false; |
427 | return false; |
426 | |
428 | |
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441 | } |
443 | } |
442 | |
444 | |
443 | return true; |
445 | return true; |
444 | } |
446 | } |
445 | |
447 | |
446 | void |
448 | // a "factory" *g* |
447 | rxvt_ptytty::set_utf8_mode (bool on) |
449 | rxvt_ptytty *rxvt_new_ptytty () |
448 | { |
450 | { |
449 | #ifdef IUTF8 |
451 | return new rxvt_ptytty_unix; |
450 | if (pty < 0) |
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451 | return; |
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452 | |
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453 | struct termios tio; |
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454 | |
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455 | if (tcgetattr (pty, &tio) != -1) |
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456 | { |
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457 | tcflag_t new_cflag = tio.c_iflag; |
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458 | |
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459 | if (on) |
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460 | new_cflag |= IUTF8; |
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461 | else |
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462 | new_cflag &= ~IUTF8; |
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463 | |
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464 | if (new_cflag != tio.c_iflag) |
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465 | { |
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466 | tio.c_iflag = new_cflag; |
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467 | tcsetattr (pty, TCSANOW, &tio); |
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468 | } |
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469 | } |
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470 | #endif |
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471 | } |
452 | } |
472 | |
453 | |
473 | /*----------------------- end-of-file (C source) -----------------------*/ |
454 | /*----------------------- end-of-file (C source) -----------------------*/ |
474 | |
455 | |