… | |
… | |
2 | * File: ptytty.C |
2 | * File: ptytty.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * |
4 | * |
5 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
6 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
6 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
7 | * Copyright (c) 2004 Marc Lehmann <pcg@goof.com> |
7 | * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
8 | * |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
12 | * (at your option) any later version. |
… | |
… | |
20 | * along with this program; if not, write to the Free Software |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
23 | |
23 | |
24 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
|
|
25 | #include "rxvt.h" |
25 | |
26 | |
26 | /* |
|
|
27 | * Try to be self-contained except for the above autoconfig'd defines |
|
|
28 | */ |
|
|
29 | |
|
|
30 | #if 0 |
|
|
31 | #ifdef HAVE_GETPT |
|
|
32 | # define _GNU_SOURCE |
|
|
33 | #endif |
|
|
34 | #endif |
|
|
35 | |
|
|
36 | #include <cstdio> |
|
|
37 | #ifdef HAVE_STDLIB_H |
|
|
38 | # include <cstdlib> |
27 | # include <cstdlib> |
39 | #endif |
28 | # include <cstring> |
|
|
29 | |
40 | #ifdef HAVE_SYS_TYPES_H |
30 | #ifdef HAVE_SYS_TYPES_H |
41 | # include <sys/types.h> |
31 | # include <sys/types.h> |
42 | #endif |
32 | #endif |
43 | #ifdef HAVE_UNISTD_H |
33 | #ifdef HAVE_UNISTD_H |
44 | # include <unistd.h> |
34 | # include <unistd.h> |
45 | #endif |
35 | #endif |
46 | #if defined(HAVE_STRING_H) |
|
|
47 | # include <cstring> |
|
|
48 | #endif |
|
|
49 | #ifdef HAVE_FCNTL_H |
36 | #ifdef HAVE_FCNTL_H |
50 | # include <fcntl.h> |
37 | # include <fcntl.h> |
51 | #endif |
38 | #endif |
52 | #ifdef HAVE_SYS_IOCTL_H |
39 | #ifdef HAVE_SYS_IOCTL_H |
53 | # include <sys/ioctl.h> |
40 | # include <sys/ioctl.h> |
… | |
… | |
56 | # include <sys/stropts.h> /* for I_PUSH */ |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
57 | #endif |
44 | #endif |
58 | #ifdef HAVE_ISASTREAM |
45 | #ifdef HAVE_ISASTREAM |
59 | # include <stropts.h> |
46 | # include <stropts.h> |
60 | #endif |
47 | #endif |
61 | |
48 | #if defined(HAVE_PTY_H) |
62 | #ifdef DEBUG_TTY |
49 | # include <pty.h> |
63 | # define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr) |
50 | #elif defined(HAVE_LIBUTIL_H) |
64 | #else |
51 | # include <libutil.h> |
65 | # define D_TTY(x) |
52 | #elif defined(HAVE_UTIL_H) |
|
|
53 | # include <util.h> |
66 | #endif |
54 | #endif |
|
|
55 | |
|
|
56 | #include <cstdio> |
|
|
57 | #include <grp.h> |
67 | |
58 | |
68 | /* ------------------------------------------------------------------------- * |
59 | /* ------------------------------------------------------------------------- * |
69 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
70 | * ------------------------------------------------------------------------- */ |
61 | * ------------------------------------------------------------------------- */ |
71 | /* |
62 | /* |
72 | * Returns pty file descriptor, or -1 on failure |
63 | * Returns pty file descriptor, or -1 on failure |
73 | * If successful, ttydev is set to the name of the slave device. |
64 | * If successful, ttydev is set to the name of the slave device. |
74 | * fd_tty _may_ also be set to an open fd to the slave device |
65 | * fd_tty _may_ also be set to an open fd to the slave device |
75 | */ |
66 | */ |
76 | /* EXTPROTO */ |
67 | static int |
77 | int |
|
|
78 | rxvt_get_pty (int *fd_tty, const char **ttydev) |
68 | get_pty (int *fd_tty, char **ttydev) |
79 | { |
69 | { |
80 | int pfd; |
70 | int pfd; |
81 | |
71 | |
82 | #ifdef PTYS_ARE_OPENPTY |
72 | #ifdef PTYS_ARE_OPENPTY |
83 | |
|
|
84 | char tty_name[sizeof "/dev/pts/????\0"]; |
73 | char tty_name[sizeof "/dev/pts/????\0"]; |
85 | |
74 | |
|
|
75 | rxvt_privileges(RESTORE); |
86 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
76 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
|
|
77 | rxvt_privileges(IGNORE); |
|
|
78 | |
|
|
79 | if (res != -1) |
87 | { |
80 | { |
88 | *ttydev = strdup (tty_name); |
81 | *ttydev = strdup (tty_name); |
89 | return pfd; |
82 | return pfd; |
90 | } |
83 | } |
91 | #endif |
84 | #endif |
… | |
… | |
94 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
87 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
95 | if (*ttydev != NULL) |
88 | if (*ttydev != NULL) |
96 | return pfd; |
89 | return pfd; |
97 | #endif |
90 | #endif |
98 | |
91 | |
99 | #ifdef PTYS_ARE_GETPTY |
|
|
100 | |
|
|
101 | char *ptydev; |
|
|
102 | |
|
|
103 | while ((ptydev = getpty ()) != NULL) |
|
|
104 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
105 | { |
|
|
106 | *ttydev = ptydev; |
|
|
107 | return pfd; |
|
|
108 | } |
|
|
109 | #endif |
|
|
110 | |
|
|
111 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
92 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
112 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
93 | # if defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
113 | |
94 | |
114 | { |
95 | { |
115 | # ifdef PTYS_ARE_GETPT |
96 | # ifdef PTYS_ARE_POSIX |
116 | pfd = getpt (); |
97 | pfd = posix_openpt (O_RDWR); |
117 | # else |
98 | # else |
118 | |
|
|
119 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
99 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
120 | # endif |
100 | # endif |
121 | |
101 | |
122 | if (pfd >= 0) |
102 | if (pfd >= 0) |
123 | { |
103 | { |
124 | if (grantpt (pfd) == 0 /* change slave permissions */ |
104 | if (grantpt (pfd) == 0 /* change slave permissions */ |
125 | && unlockpt (pfd) == 0) |
105 | && unlockpt (pfd) == 0) |
126 | { /* slave now unlocked */ |
106 | { /* slave now unlocked */ |
127 | *ttydev = ptsname (pfd); /* get slave's name */ |
107 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
128 | return pfd; |
108 | return pfd; |
129 | } |
109 | } |
130 | close (pfd); |
110 | close (pfd); |
131 | } |
111 | } |
132 | } |
112 | } |
… | |
… | |
134 | #endif |
114 | #endif |
135 | |
115 | |
136 | #ifdef PTYS_ARE_PTC |
116 | #ifdef PTYS_ARE_PTC |
137 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
117 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
138 | { |
118 | { |
139 | *ttydev = ttyname (pfd); |
119 | *ttydev = strdup (ttyname (pfd)); |
140 | return pfd; |
120 | return pfd; |
141 | } |
121 | } |
142 | #endif |
122 | #endif |
143 | |
123 | |
144 | #ifdef PTYS_ARE_CLONE |
124 | #ifdef PTYS_ARE_CLONE |
145 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
125 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
146 | { |
126 | { |
147 | *ttydev = ptsname (pfd); |
127 | *ttydev = strdup (ptsname (pfd)); |
148 | return pfd; |
128 | return pfd; |
149 | } |
129 | } |
150 | #endif |
130 | #endif |
151 | |
131 | |
152 | #ifdef PTYS_ARE_NUMERIC |
132 | #ifdef PTYS_ARE_NUMERIC |
153 | { |
133 | { |
154 | int idx; |
134 | int idx; |
155 | char *c1, *c2; |
135 | char *c1, *c2; |
156 | char pty_name[] = "/dev/ptyp???"; |
136 | char pty_name[] = "/dev/ptyp???"; |
157 | char tty_name[] = "/dev/ttyp???"; |
137 | char tty_name[] = "/dev/ttyp???"; |
158 | |
138 | |
159 | c1 = & (pty_name[sizeof (pty_name) - 4]); |
139 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
160 | c2 = & (tty_name[sizeof (tty_name) - 4]); |
140 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
161 | for (idx = 0; idx < 256; idx++) |
141 | for (idx = 0; idx < 256; idx++) |
162 | { |
142 | { |
163 | sprintf (c1, "%d", idx); |
143 | sprintf (c1, "%d", idx); |
164 | sprintf (c2, "%d", idx); |
144 | sprintf (c2, "%d", idx); |
165 | if (access (tty_name, F_OK) < 0) |
145 | if (access (tty_name, F_OK) < 0) |
166 | { |
146 | { |
167 | idx = 256; |
147 | idx = 256; |
168 | break; |
148 | break; |
169 | } |
149 | } |
|
|
150 | |
170 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
151 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
171 | { |
152 | { |
172 | if (access (tty_name, R_OK | W_OK) == 0) |
153 | if (access (tty_name, R_OK | W_OK) == 0) |
173 | { |
154 | { |
174 | *ttydev = strdup (tty_name); |
155 | *ttydev = strdup (tty_name); |
175 | return pfd; |
156 | return pfd; |
176 | } |
157 | } |
|
|
158 | |
177 | close (pfd); |
159 | close (pfd); |
178 | } |
160 | } |
179 | } |
161 | } |
180 | } |
162 | } |
181 | #endif |
163 | #endif |
|
|
164 | |
182 | #ifdef PTYS_ARE_SEARCHED |
165 | #ifdef PTYS_ARE_SEARCHED |
183 | { |
166 | { |
184 | const char *c1, *c2; |
167 | const char *c1, *c2; |
185 | char pty_name[] = "/dev/pty??"; |
168 | char pty_name[] = "/dev/pty??"; |
186 | char tty_name[] = "/dev/tty??"; |
169 | char tty_name[] = "/dev/tty??"; |
187 | |
170 | |
188 | # ifndef PTYCHAR1 |
171 | # ifndef PTYCHAR1 |
189 | # define PTYCHAR1 "pqrstuvwxyz" |
172 | # define PTYCHAR1 "pqrstuvwxyz" |
190 | # endif |
173 | # endif |
191 | # ifndef PTYCHAR2 |
174 | # ifndef PTYCHAR2 |
… | |
… | |
205 | if (access (tty_name, R_OK | W_OK) == 0) |
188 | if (access (tty_name, R_OK | W_OK) == 0) |
206 | { |
189 | { |
207 | *ttydev = strdup (tty_name); |
190 | *ttydev = strdup (tty_name); |
208 | return pfd; |
191 | return pfd; |
209 | } |
192 | } |
|
|
193 | |
210 | close (pfd); |
194 | close (pfd); |
211 | } |
195 | } |
212 | } |
196 | } |
213 | } |
197 | } |
214 | } |
198 | } |
215 | #endif |
199 | #endif |
|
|
200 | |
216 | return -1; |
201 | return -1; |
217 | } |
202 | } |
218 | |
203 | |
219 | /*----------------------------------------------------------------------*/ |
204 | /*----------------------------------------------------------------------*/ |
220 | /* |
205 | /* |
221 | * Returns tty file descriptor, or -1 on failure |
206 | * Returns tty file descriptor, or -1 on failure |
222 | */ |
207 | */ |
223 | /* EXTPROTO */ |
208 | static int |
224 | int |
|
|
225 | rxvt_get_tty (const char *ttydev) |
209 | get_tty (char *ttydev) |
226 | { |
210 | { |
227 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
211 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
228 | } |
212 | } |
229 | |
213 | |
230 | /*----------------------------------------------------------------------*/ |
214 | /*----------------------------------------------------------------------*/ |
231 | /* |
215 | /* |
232 | * Make our tty a controlling tty so that /dev/tty points to us |
216 | * Make our tty a controlling tty so that /dev/tty points to us |
233 | */ |
217 | */ |
234 | /* EXTPROTO */ |
218 | static int |
235 | int |
|
|
236 | rxvt_control_tty (int fd_tty, const char *ttydev) |
219 | control_tty (int fd_tty, const char *ttydev) |
237 | { |
220 | { |
238 | #ifndef __QNX__ |
221 | #ifndef __QNX__ |
239 | int fd; |
222 | int fd; |
240 | |
223 | |
241 | D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev)); |
|
|
242 | /* ---------------------------------------- */ |
224 | /* ---------------------------------------- */ |
243 | # ifdef HAVE_SETSID |
225 | # ifdef HAVE_SETSID |
244 | setsid (); |
226 | setsid (); |
245 | # endif |
227 | # endif |
246 | # if defined(HAVE_SETPGID) |
228 | # if defined(HAVE_SETPGID) |
247 | setpgid (0, 0); |
229 | setpgid (0, 0); |
248 | # elif defined(HAVE_SETPGRP) |
230 | # elif defined(HAVE_SETPGRP) |
249 | setpgrp (0, 0); |
231 | setpgrp (0, 0); |
250 | # endif |
232 | # endif |
|
|
233 | |
251 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
252 | # ifdef TIOCNOTTY |
235 | # ifdef TIOCNOTTY |
253 | |
|
|
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
236 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
255 | D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); |
|
|
256 | if (fd >= 0) |
237 | if (fd >= 0) |
257 | { |
238 | { |
258 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
239 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
259 | close (fd); |
240 | close (fd); |
260 | } |
241 | } |
261 | # endif |
242 | # endif |
|
|
243 | |
262 | /* ---------------------------------------- */ |
244 | /* ---------------------------------------- */ |
263 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
245 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
264 | D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); |
|
|
265 | if (fd >= 0) |
246 | if (fd >= 0) |
266 | close (fd); /* ouch: still have controlling tty */ |
247 | close (fd); /* ouch: still have controlling tty */ |
|
|
248 | |
267 | /* ---------------------------------------- */ |
249 | /* ---------------------------------------- */ |
268 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
250 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
269 | /* |
251 | /* |
270 | * Push STREAMS modules: |
252 | * Push STREAMS modules: |
271 | * ptem: pseudo-terminal hardware emulation module. |
253 | * ptem: pseudo-terminal hardware emulation module. |
… | |
… | |
285 | */ |
267 | */ |
286 | # ifdef HAVE_ISASTREAM |
268 | # ifdef HAVE_ISASTREAM |
287 | if (isastream (fd_tty) == 1) |
269 | if (isastream (fd_tty) == 1) |
288 | # endif |
270 | # endif |
289 | { |
271 | { |
290 | D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules")); |
|
|
291 | ioctl (fd_tty, I_PUSH, "ptem"); |
272 | ioctl (fd_tty, I_PUSH, "ptem"); |
292 | ioctl (fd_tty, I_PUSH, "ldterm"); |
273 | ioctl (fd_tty, I_PUSH, "ldterm"); |
293 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
274 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
294 | } |
275 | } |
295 | #endif |
276 | #endif |
296 | /* ---------------------------------------- */ |
277 | /* ---------------------------------------- */ |
297 | # if defined(TIOCSCTTY) |
278 | # if defined(TIOCSCTTY) |
298 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
279 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
299 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd)); |
|
|
300 | # elif defined(TIOCSETCTTY) |
280 | # elif defined(TIOCSETCTTY) |
301 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
281 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
302 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd)); |
|
|
303 | # else |
282 | # else |
304 | fd = open (ttydev, O_RDWR); |
283 | fd = open (ttydev, O_RDWR); |
305 | D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK")); |
|
|
306 | if (fd >= 0) |
284 | if (fd >= 0) |
307 | close (fd); |
285 | close (fd); |
308 | # endif |
286 | # endif |
309 | /* ---------------------------------------- */ |
287 | /* ---------------------------------------- */ |
310 | fd = open ("/dev/tty", O_WRONLY); |
288 | fd = open ("/dev/tty", O_WRONLY); |
311 | D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); |
|
|
312 | if (fd < 0) |
289 | if (fd < 0) |
313 | return -1; /* fatal */ |
290 | return -1; /* fatal */ |
314 | close (fd); |
291 | close (fd); |
315 | /* ---------------------------------------- */ |
292 | /* ---------------------------------------- */ |
316 | D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ())); |
|
|
317 | /* ---------------------------------------- */ |
|
|
318 | #endif /* ! __QNX__ */ |
293 | #endif /* ! __QNX__ */ |
319 | |
294 | |
320 | return 0; |
295 | return 0; |
321 | } |
296 | } |
|
|
297 | |
|
|
298 | #ifndef NO_SETOWNER_TTYDEV |
|
|
299 | static struct ttyconf { |
|
|
300 | gid_t gid; |
|
|
301 | mode_t mode; |
|
|
302 | |
|
|
303 | ttyconf () |
|
|
304 | { |
|
|
305 | #ifdef TTY_GID_SUPPORT |
|
|
306 | struct group *gr = getgrnam ("tty"); |
|
|
307 | |
|
|
308 | if (gr) |
|
|
309 | { /* change group ownership of tty to "tty" */ |
|
|
310 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
|
|
311 | gid = gr->gr_gid; |
|
|
312 | } |
|
|
313 | else |
|
|
314 | #endif /* TTY_GID_SUPPORT */ |
|
|
315 | { |
|
|
316 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
|
|
317 | gid = getgid (); |
|
|
318 | } |
|
|
319 | } |
|
|
320 | } ttyconf; |
|
|
321 | |
|
|
322 | void |
|
|
323 | rxvt_ptytty::privileges (rxvt_privaction action) |
|
|
324 | { |
|
|
325 | if (!name || !*name) |
|
|
326 | return; |
|
|
327 | |
|
|
328 | rxvt_privileges (RESTORE); |
|
|
329 | |
|
|
330 | if (action == SAVE) |
|
|
331 | { |
|
|
332 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
333 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
|
|
334 | if (lstat (name, &savestat) < 0) /* you lose out */ |
|
|
335 | ; |
|
|
336 | else |
|
|
337 | # endif |
|
|
338 | { |
|
|
339 | saved = true; |
|
|
340 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
341 | chmod (name, ttyconf.mode); |
|
|
342 | # ifdef HAVE_REVOKE |
|
|
343 | revoke (name); |
|
|
344 | # endif |
|
|
345 | } |
|
|
346 | } |
|
|
347 | else |
|
|
348 | { /* action == RESTORE */ |
|
|
349 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
350 | if (saved) |
|
|
351 | { |
|
|
352 | chmod (name, savestat.st_mode); |
|
|
353 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
354 | } |
|
|
355 | # else |
|
|
356 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
|
|
357 | chown (name, 0, 0); |
|
|
358 | # endif |
|
|
359 | |
|
|
360 | } |
|
|
361 | |
|
|
362 | rxvt_privileges (IGNORE); |
|
|
363 | } |
|
|
364 | #endif |
|
|
365 | |
|
|
366 | rxvt_ptytty::rxvt_ptytty () |
|
|
367 | { |
|
|
368 | pty = tty = -1; |
|
|
369 | name = 0; |
|
|
370 | #ifndef NO_SETOWNER_TTYDEV |
|
|
371 | saved = false; |
|
|
372 | #endif |
|
|
373 | } |
|
|
374 | |
|
|
375 | rxvt_ptytty::~rxvt_ptytty () |
|
|
376 | { |
|
|
377 | put (); |
|
|
378 | } |
|
|
379 | |
|
|
380 | void |
|
|
381 | |
|
|
382 | rxvt_ptytty::close_tty () |
|
|
383 | { |
|
|
384 | if (tty < 0) |
|
|
385 | return; |
|
|
386 | |
|
|
387 | close (tty); |
|
|
388 | tty = -1; |
|
|
389 | } |
|
|
390 | |
|
|
391 | void |
|
|
392 | rxvt_ptytty::put () |
|
|
393 | { |
|
|
394 | #ifndef NO_SETOWNER_TTYDEV |
|
|
395 | privileges (RESTORE); |
|
|
396 | #endif |
|
|
397 | |
|
|
398 | if (pty >= 0) close (pty); |
|
|
399 | close_tty (); |
|
|
400 | free (name); |
|
|
401 | |
|
|
402 | pty = tty = -1; |
|
|
403 | name = 0; |
|
|
404 | } |
|
|
405 | |
|
|
406 | bool |
|
|
407 | rxvt_ptytty::make_controlling_tty () |
|
|
408 | { |
|
|
409 | return control_tty (tty, name) >= 0; |
|
|
410 | } |
|
|
411 | |
|
|
412 | bool |
|
|
413 | rxvt_ptytty::get () |
|
|
414 | { |
|
|
415 | /* get master (pty) */ |
|
|
416 | if ((pty = get_pty (&tty, &name)) < 0) |
|
|
417 | return false; |
|
|
418 | |
|
|
419 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
420 | |
|
|
421 | /* get slave (tty) */ |
|
|
422 | if (tty < 0) |
|
|
423 | { |
|
|
424 | #ifndef NO_SETOWNER_TTYDEV |
|
|
425 | privileges (SAVE); |
|
|
426 | #endif |
|
|
427 | |
|
|
428 | if ((tty = get_tty (name)) < 0) |
|
|
429 | { |
|
|
430 | put (); |
|
|
431 | return false; |
|
|
432 | } |
|
|
433 | } |
|
|
434 | |
|
|
435 | return true; |
|
|
436 | } |
|
|
437 | |
|
|
438 | void |
|
|
439 | rxvt_ptytty::set_utf8_mode (bool on) |
|
|
440 | { |
|
|
441 | #ifdef IUTF8 |
|
|
442 | if (pty < 0) |
|
|
443 | return; |
|
|
444 | |
|
|
445 | struct termios tio; |
|
|
446 | |
|
|
447 | if (tcgetattr (pty, &tio) != -1) |
|
|
448 | { |
|
|
449 | tcflag_t new_cflag = tio.c_iflag; |
|
|
450 | |
|
|
451 | if (on) |
|
|
452 | new_cflag |= IUTF8; |
|
|
453 | else |
|
|
454 | new_cflag &= ~IUTF8; |
|
|
455 | |
|
|
456 | if (new_cflag != tio.c_iflag) |
|
|
457 | { |
|
|
458 | tio.c_iflag = new_cflag; |
|
|
459 | tcsetattr (pty, TCSANOW, &tio); |
|
|
460 | } |
|
|
461 | } |
|
|
462 | #endif |
|
|
463 | } |
|
|
464 | |
322 | /*----------------------- end-of-file (C source) -----------------------*/ |
465 | /*----------------------- end-of-file (C source) -----------------------*/ |
|
|
466 | |