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5 | * File: ptytty.C |
5 | * File: ptytty.C |
6 | *----------------------------------------------------------------------* |
6 | *----------------------------------------------------------------------* |
7 | * |
7 | * |
8 | * All portions of code are copyright by their respective author/s. |
8 | * All portions of code are copyright by their respective author/s. |
9 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
9 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
10 | * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
10 | * Copyright (c) 2004-2006 Marc Lehmann <schmorp@schmorp.de> |
11 | * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> |
11 | * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> |
12 | * |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License as published by |
14 | * it under the terms of the GNU General Public License as published by |
15 | * the Free Software Foundation; either version 2 of the License, or |
15 | * the Free Software Foundation; either version 2 of the License, or |
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23 | * You should have received a copy of the GNU General Public License |
23 | * You should have received a copy of the GNU General Public License |
24 | * along with this program; if not, write to the Free Software |
24 | * along with this program; if not, write to the Free Software |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26 | *---------------------------------------------------------------------*/ |
26 | *---------------------------------------------------------------------*/ |
27 | |
27 | |
28 | #include "../config.h" |
28 | #include "config.h" |
29 | |
29 | |
30 | #include "ptytty.h" |
30 | #include "ptytty.h" |
31 | |
31 | |
32 | #include <cstdlib> |
32 | #include <cstdlib> |
33 | #include <cstring> |
33 | #include <cstring> |
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42 | # include <sys/ioctl.h> |
42 | # include <sys/ioctl.h> |
43 | #endif |
43 | #endif |
44 | #if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) |
44 | #if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) |
45 | # include <sys/stropts.h> /* for I_PUSH */ |
45 | # include <sys/stropts.h> /* for I_PUSH */ |
46 | #endif |
46 | #endif |
47 | #ifdef HAVE_ISASTREAM |
47 | #if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H) |
48 | # include <stropts.h> |
48 | # include <stropts.h> |
49 | #endif |
49 | #endif |
50 | #if defined(HAVE_PTY_H) |
50 | #if defined(HAVE_PTY_H) |
51 | # include <pty.h> |
51 | # include <pty.h> |
52 | #elif defined(HAVE_LIBUTIL_H) |
52 | #elif defined(HAVE_LIBUTIL_H) |
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131 | slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
131 | slave = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
132 | |
132 | |
133 | if (slave != NULL) |
133 | if (slave != NULL) |
134 | { |
134 | { |
135 | *ttydev = strdup (slave); |
135 | *ttydev = strdup (slave); |
136 | return pfd; |
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137 | } |
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138 | |
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139 | return -1; |
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140 | } |
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141 | |
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142 | #elif defined(HAVE_DEV_PTC) |
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143 | |
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144 | static int |
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145 | get_pty (int *fd_tty, char **ttydev) |
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146 | { |
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147 | int pfd; |
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148 | |
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149 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
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150 | { |
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151 | *ttydev = strdup (ttyname (pfd)); |
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152 | return pfd; |
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153 | } |
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154 | |
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155 | return -1; |
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156 | } |
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157 | |
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158 | #elif defined(HAVE_DEV_CLONE) |
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159 | |
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160 | static int |
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161 | get_pty (int *fd_tty, char **ttydev) |
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162 | { |
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163 | int pfd; |
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164 | |
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165 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
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166 | { |
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167 | *ttydev = strdup (ptsname (pfd)); |
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168 | return pfd; |
136 | return pfd; |
169 | } |
137 | } |
170 | |
138 | |
171 | return -1; |
139 | return -1; |
172 | } |
140 | } |
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229 | control_tty (int fd_tty) |
197 | control_tty (int fd_tty) |
230 | { |
198 | { |
231 | int fd; |
199 | int fd; |
232 | |
200 | |
233 | setsid (); |
201 | setsid (); |
234 | |
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235 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
|
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236 | /* |
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237 | * Push STREAMS modules: |
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238 | * ptem: pseudo-terminal hardware emulation module. |
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239 | * ldterm: standard terminal line discipline. |
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240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
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241 | * |
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242 | * After we push the STREAMS modules, the first open () on the slave side |
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243 | * (i.e. the next section between the dashes giving us "tty opened OK") |
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244 | * should make the "ptem" (or "ldterm" depending upon either which OS |
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245 | * version or which set of manual pages you have) module give us a |
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246 | * controlling terminal. We must already have close ()d the master side |
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247 | * fd in this child process before we push STREAMS modules on because the |
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248 | * documentation is really unclear about whether it is any close () on |
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249 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
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250 | * close () - on the master side which causes a hang up to be sent |
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251 | * through - Geoff Wing |
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252 | */ |
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253 | # ifdef HAVE_ISASTREAM |
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254 | if (isastream (fd_tty) == 1) |
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255 | # endif |
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256 | { |
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257 | ioctl (fd_tty, I_PUSH, "ptem"); |
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258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
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259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
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260 | } |
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261 | #endif |
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262 | |
202 | |
263 | #ifdef TIOCSCTTY |
203 | #ifdef TIOCSCTTY |
264 | ioctl (fd_tty, TIOCSCTTY, NULL); |
204 | ioctl (fd_tty, TIOCSCTTY, NULL); |
265 | #else |
205 | #else |
266 | fd = open (ttyname (fd_tty), O_RDWR); |
206 | fd = open (ttyname (fd_tty), O_RDWR); |
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405 | put (); |
345 | put (); |
406 | return false; |
346 | return false; |
407 | } |
347 | } |
408 | } |
348 | } |
409 | |
349 | |
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350 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
|
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351 | /* |
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352 | * Push STREAMS modules: |
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353 | * ptem: pseudo-terminal hardware emulation module. |
|
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354 | * ldterm: standard terminal line discipline. |
|
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355 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
|
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356 | * |
|
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357 | * After we push the STREAMS modules, the first open () on the slave side |
|
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358 | * should make the "ptem" (or "ldterm" depending upon either which OS |
|
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359 | * version or which set of manual pages you have) module give us a |
|
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360 | * controlling terminal. We must already have close ()d the master side |
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361 | * fd in this child process before we push STREAMS modules on because the |
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362 | * documentation is really unclear about whether it is any close () on |
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363 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
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364 | * close () - on the master side which causes a hang up to be sent |
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365 | * through - Geoff Wing |
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366 | */ |
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367 | #if defined(HAVE_ISASTREAM) && defined(HAVE_STROPTS_H) |
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368 | if (isastream (tty) == 1) |
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369 | # endif |
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370 | { |
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371 | ioctl (tty, I_PUSH, "ptem"); |
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372 | ioctl (tty, I_PUSH, "ldterm"); |
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373 | ioctl (tty, I_PUSH, "ttcompat"); |
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374 | } |
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375 | #endif |
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376 | |
410 | return true; |
377 | return true; |
411 | } |
378 | } |
412 | |
379 | |