… | |
… | |
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 | */ |
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29 | |
|
|
30 | #if 0 |
|
|
31 | #ifdef HAVE_GETPT |
|
|
32 | # define _GNU_SOURCE |
|
|
33 | #endif |
|
|
34 | #endif |
|
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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> |
54 | #endif |
41 | #endif |
55 | #if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_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 | |
|
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84 | char tty_name[sizeof "/dev/pts/????\0"]; |
73 | char tty_name[sizeof "/dev/pts/????\0"]; |
85 | |
74 | |
|
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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); |
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77 | rxvt_privileges(IGNORE); |
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78 | |
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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 |
… | |
… | |
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 |
92 | #ifdef PTYS_ARE_GETPTY |
100 | |
|
|
101 | char *ptydev; |
93 | char *ptydev; |
102 | |
94 | |
103 | while ((ptydev = getpty ()) != NULL) |
95 | while ((ptydev = getpty ()) != NULL) |
104 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
96 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
105 | { |
97 | { |
… | |
… | |
113 | |
105 | |
114 | { |
106 | { |
115 | # ifdef PTYS_ARE_GETPT |
107 | # ifdef PTYS_ARE_GETPT |
116 | pfd = getpt (); |
108 | pfd = getpt (); |
117 | # else |
109 | # else |
118 | |
|
|
119 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
110 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
120 | # endif |
111 | # endif |
121 | |
112 | |
122 | if (pfd >= 0) |
113 | if (pfd >= 0) |
123 | { |
114 | { |
124 | if (grantpt (pfd) == 0 /* change slave permissions */ |
115 | if (grantpt (pfd) == 0 /* change slave permissions */ |
125 | && unlockpt (pfd) == 0) |
116 | && unlockpt (pfd) == 0) |
126 | { /* slave now unlocked */ |
117 | { /* slave now unlocked */ |
127 | *ttydev = ptsname (pfd); /* get slave's name */ |
118 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
128 | return pfd; |
119 | return pfd; |
129 | } |
120 | } |
130 | close (pfd); |
121 | close (pfd); |
131 | } |
122 | } |
132 | } |
123 | } |
… | |
… | |
134 | #endif |
125 | #endif |
135 | |
126 | |
136 | #ifdef PTYS_ARE_PTC |
127 | #ifdef PTYS_ARE_PTC |
137 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
128 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
138 | { |
129 | { |
139 | *ttydev = ttyname (pfd); |
130 | *ttydev = strdup (ttyname (pfd)); |
140 | return pfd; |
131 | return pfd; |
141 | } |
132 | } |
142 | #endif |
133 | #endif |
143 | |
134 | |
144 | #ifdef PTYS_ARE_CLONE |
135 | #ifdef PTYS_ARE_CLONE |
145 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
136 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
146 | { |
137 | { |
147 | *ttydev = ptsname (pfd); |
138 | *ttydev = strdup (ptsname (pfd)); |
148 | return pfd; |
139 | return pfd; |
149 | } |
140 | } |
150 | #endif |
141 | #endif |
151 | |
142 | |
152 | #ifdef PTYS_ARE_NUMERIC |
143 | #ifdef PTYS_ARE_NUMERIC |
153 | { |
144 | { |
154 | int idx; |
145 | int idx; |
155 | char *c1, *c2; |
146 | char *c1, *c2; |
156 | char pty_name[] = "/dev/ptyp???"; |
147 | char pty_name[] = "/dev/ptyp???"; |
157 | char tty_name[] = "/dev/ttyp???"; |
148 | char tty_name[] = "/dev/ttyp???"; |
158 | |
149 | |
159 | c1 = & (pty_name[sizeof (pty_name) - 4]); |
150 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
160 | c2 = & (tty_name[sizeof (tty_name) - 4]); |
151 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
161 | for (idx = 0; idx < 256; idx++) |
152 | for (idx = 0; idx < 256; idx++) |
162 | { |
153 | { |
163 | sprintf (c1, "%d", idx); |
154 | sprintf (c1, "%d", idx); |
164 | sprintf (c2, "%d", idx); |
155 | sprintf (c2, "%d", idx); |
165 | if (access (tty_name, F_OK) < 0) |
156 | if (access (tty_name, F_OK) < 0) |
166 | { |
157 | { |
167 | idx = 256; |
158 | idx = 256; |
168 | break; |
159 | break; |
169 | } |
160 | } |
|
|
161 | |
170 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
162 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
171 | { |
163 | { |
172 | if (access (tty_name, R_OK | W_OK) == 0) |
164 | if (access (tty_name, R_OK | W_OK) == 0) |
173 | { |
165 | { |
174 | *ttydev = strdup (tty_name); |
166 | *ttydev = strdup (tty_name); |
175 | return pfd; |
167 | return pfd; |
176 | } |
168 | } |
|
|
169 | |
177 | close (pfd); |
170 | close (pfd); |
178 | } |
171 | } |
179 | } |
172 | } |
180 | } |
173 | } |
181 | #endif |
174 | #endif |
|
|
175 | |
182 | #ifdef PTYS_ARE_SEARCHED |
176 | #ifdef PTYS_ARE_SEARCHED |
183 | { |
177 | { |
184 | const char *c1, *c2; |
178 | const char *c1, *c2; |
185 | char pty_name[] = "/dev/pty??"; |
179 | char pty_name[] = "/dev/pty??"; |
186 | char tty_name[] = "/dev/tty??"; |
180 | char tty_name[] = "/dev/tty??"; |
187 | |
181 | |
188 | # ifndef PTYCHAR1 |
182 | # ifndef PTYCHAR1 |
189 | # define PTYCHAR1 "pqrstuvwxyz" |
183 | # define PTYCHAR1 "pqrstuvwxyz" |
190 | # endif |
184 | # endif |
191 | # ifndef PTYCHAR2 |
185 | # ifndef PTYCHAR2 |
… | |
… | |
205 | if (access (tty_name, R_OK | W_OK) == 0) |
199 | if (access (tty_name, R_OK | W_OK) == 0) |
206 | { |
200 | { |
207 | *ttydev = strdup (tty_name); |
201 | *ttydev = strdup (tty_name); |
208 | return pfd; |
202 | return pfd; |
209 | } |
203 | } |
|
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204 | |
210 | close (pfd); |
205 | close (pfd); |
211 | } |
206 | } |
212 | } |
207 | } |
213 | } |
208 | } |
214 | } |
209 | } |
215 | #endif |
210 | #endif |
|
|
211 | |
216 | return -1; |
212 | return -1; |
217 | } |
213 | } |
218 | |
214 | |
219 | /*----------------------------------------------------------------------*/ |
215 | /*----------------------------------------------------------------------*/ |
220 | /* |
216 | /* |
221 | * Returns tty file descriptor, or -1 on failure |
217 | * Returns tty file descriptor, or -1 on failure |
222 | */ |
218 | */ |
223 | /* EXTPROTO */ |
219 | static int |
224 | int |
|
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225 | rxvt_get_tty (const char *ttydev) |
220 | get_tty (char *ttydev) |
226 | { |
221 | { |
227 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
222 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
228 | } |
223 | } |
229 | |
224 | |
230 | /*----------------------------------------------------------------------*/ |
225 | /*----------------------------------------------------------------------*/ |
231 | /* |
226 | /* |
232 | * Make our tty a controlling tty so that /dev/tty points to us |
227 | * Make our tty a controlling tty so that /dev/tty points to us |
233 | */ |
228 | */ |
234 | /* EXTPROTO */ |
229 | static int |
235 | int |
|
|
236 | rxvt_control_tty (int fd_tty, const char *ttydev) |
230 | control_tty (int fd_tty, const char *ttydev) |
237 | { |
231 | { |
238 | #ifndef __QNX__ |
232 | #ifndef __QNX__ |
239 | int fd; |
233 | int fd; |
240 | |
234 | |
241 | D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev)); |
|
|
242 | /* ---------------------------------------- */ |
235 | /* ---------------------------------------- */ |
243 | # ifdef HAVE_SETSID |
236 | # ifdef HAVE_SETSID |
244 | setsid (); |
237 | setsid (); |
245 | # endif |
238 | # endif |
246 | # if defined(HAVE_SETPGID) |
239 | # if defined(HAVE_SETPGID) |
247 | setpgid (0, 0); |
240 | setpgid (0, 0); |
248 | # elif defined(HAVE_SETPGRP) |
241 | # elif defined(HAVE_SETPGRP) |
249 | setpgrp (0, 0); |
242 | setpgrp (0, 0); |
250 | # endif |
243 | # endif |
|
|
244 | |
251 | /* ---------------------------------------- */ |
245 | /* ---------------------------------------- */ |
252 | # ifdef TIOCNOTTY |
246 | # ifdef TIOCNOTTY |
253 | |
|
|
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
247 | 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) |
248 | if (fd >= 0) |
257 | { |
249 | { |
258 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
250 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
259 | close (fd); |
251 | close (fd); |
260 | } |
252 | } |
261 | # endif |
253 | # endif |
|
|
254 | |
262 | /* ---------------------------------------- */ |
255 | /* ---------------------------------------- */ |
263 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
256 | 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)")); |
|
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265 | if (fd >= 0) |
257 | if (fd >= 0) |
266 | close (fd); /* ouch: still have controlling tty */ |
258 | close (fd); /* ouch: still have controlling tty */ |
|
|
259 | |
267 | /* ---------------------------------------- */ |
260 | /* ---------------------------------------- */ |
268 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
261 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
269 | /* |
262 | /* |
270 | * Push STREAMS modules: |
263 | * Push STREAMS modules: |
271 | * ptem: pseudo-terminal hardware emulation module. |
264 | * ptem: pseudo-terminal hardware emulation module. |
… | |
… | |
285 | */ |
278 | */ |
286 | # ifdef HAVE_ISASTREAM |
279 | # ifdef HAVE_ISASTREAM |
287 | if (isastream (fd_tty) == 1) |
280 | if (isastream (fd_tty) == 1) |
288 | # endif |
281 | # endif |
289 | { |
282 | { |
290 | D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules")); |
|
|
291 | ioctl (fd_tty, I_PUSH, "ptem"); |
283 | ioctl (fd_tty, I_PUSH, "ptem"); |
292 | ioctl (fd_tty, I_PUSH, "ldterm"); |
284 | ioctl (fd_tty, I_PUSH, "ldterm"); |
293 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
285 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
294 | } |
286 | } |
295 | #endif |
287 | #endif |
296 | /* ---------------------------------------- */ |
288 | /* ---------------------------------------- */ |
297 | # if defined(TIOCSCTTY) |
289 | # if defined(TIOCSCTTY) |
298 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
290 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
299 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd)); |
|
|
300 | # elif defined(TIOCSETCTTY) |
291 | # elif defined(TIOCSETCTTY) |
301 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
292 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
302 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd)); |
|
|
303 | # else |
293 | # else |
304 | fd = open (ttydev, O_RDWR); |
294 | fd = open (ttydev, O_RDWR); |
305 | D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK")); |
|
|
306 | if (fd >= 0) |
295 | if (fd >= 0) |
307 | close (fd); |
296 | close (fd); |
308 | # endif |
297 | # endif |
309 | /* ---------------------------------------- */ |
298 | /* ---------------------------------------- */ |
310 | fd = open ("/dev/tty", O_WRONLY); |
299 | 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) |
300 | if (fd < 0) |
313 | return -1; /* fatal */ |
301 | return -1; /* fatal */ |
314 | close (fd); |
302 | close (fd); |
315 | /* ---------------------------------------- */ |
303 | /* ---------------------------------------- */ |
316 | D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ())); |
|
|
317 | /* ---------------------------------------- */ |
|
|
318 | #endif /* ! __QNX__ */ |
304 | #endif /* ! __QNX__ */ |
319 | |
305 | |
320 | return 0; |
306 | return 0; |
321 | } |
307 | } |
|
|
308 | |
|
|
309 | #ifndef NO_SETOWNER_TTYDEV |
|
|
310 | static struct ttyconf { |
|
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311 | gid_t gid; |
|
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312 | mode_t mode; |
|
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313 | |
|
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314 | ttyconf () |
|
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315 | { |
|
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316 | #ifdef TTY_GID_SUPPORT |
|
|
317 | struct group *gr = getgrnam ("tty"); |
|
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318 | |
|
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319 | if (gr) |
|
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320 | { /* change group ownership of tty to "tty" */ |
|
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321 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
|
|
322 | gid = gr->gr_gid; |
|
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323 | } |
|
|
324 | else |
|
|
325 | #endif /* TTY_GID_SUPPORT */ |
|
|
326 | { |
|
|
327 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
|
|
328 | gid = getgid (); |
|
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329 | } |
|
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330 | } |
|
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331 | } ttyconf; |
|
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332 | |
|
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333 | void |
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334 | rxvt_ptytty::privileges (rxvt_privaction action) |
|
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335 | { |
|
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336 | if (!name || !*name) |
|
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337 | return; |
|
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338 | |
|
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339 | rxvt_privileges (RESTORE); |
|
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340 | |
|
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341 | if (action == SAVE) |
|
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342 | { |
|
|
343 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
344 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
|
|
345 | if (lstat (name, &savestat) < 0) /* you lose out */ |
|
|
346 | ; |
|
|
347 | else |
|
|
348 | # endif |
|
|
349 | { |
|
|
350 | saved = true; |
|
|
351 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
352 | chmod (name, ttyconf.mode); |
|
|
353 | # ifdef HAVE_REVOKE |
|
|
354 | revoke (name); |
|
|
355 | # endif |
|
|
356 | } |
|
|
357 | } |
|
|
358 | else |
|
|
359 | { /* action == RESTORE */ |
|
|
360 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
|
361 | if (saved) |
|
|
362 | { |
|
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363 | chmod (name, savestat.st_mode); |
|
|
364 | chown (name, savestat.st_uid, savestat.st_gid); |
|
|
365 | } |
|
|
366 | # else |
|
|
367 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
|
|
368 | chown (name, 0, 0); |
|
|
369 | # endif |
|
|
370 | |
|
|
371 | } |
|
|
372 | |
|
|
373 | rxvt_privileges (IGNORE); |
|
|
374 | } |
|
|
375 | #endif |
|
|
376 | |
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377 | rxvt_ptytty::rxvt_ptytty () |
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378 | { |
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379 | pty = tty = -1; |
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380 | name = 0; |
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381 | #ifndef NO_SETOWNER_TTYDEV |
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382 | saved = false; |
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383 | #endif |
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384 | } |
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385 | |
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386 | rxvt_ptytty::~rxvt_ptytty () |
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387 | { |
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388 | put (); |
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389 | } |
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390 | |
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391 | void |
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392 | |
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393 | rxvt_ptytty::close_tty () |
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394 | { |
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395 | if (tty < 0) |
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396 | return; |
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397 | |
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398 | close (tty); |
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399 | tty = -1; |
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400 | } |
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401 | |
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402 | void |
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403 | rxvt_ptytty::put () |
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404 | { |
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405 | #ifndef NO_SETOWNER_TTYDEV |
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406 | privileges (RESTORE); |
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407 | #endif |
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408 | |
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409 | if (pty >= 0) close (pty); |
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410 | close_tty (); |
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411 | free (name); |
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412 | |
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413 | pty = tty = -1; |
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414 | name = 0; |
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415 | } |
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416 | |
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417 | bool |
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418 | rxvt_ptytty::make_controlling_tty () |
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419 | { |
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420 | return control_tty (tty, name) >= 0; |
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421 | } |
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422 | |
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423 | bool |
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424 | rxvt_ptytty::get () |
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425 | { |
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426 | /* get master (pty) */ |
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427 | if ((pty = get_pty (&tty, &name)) < 0) |
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428 | return false; |
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429 | |
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430 | fcntl (pty, F_SETFL, O_NONBLOCK); |
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431 | |
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432 | /* get slave (tty) */ |
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433 | if (tty < 0) |
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434 | { |
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435 | #ifndef NO_SETOWNER_TTYDEV |
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436 | privileges (SAVE); |
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437 | #endif |
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438 | |
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439 | if ((tty = get_tty (name)) < 0) |
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440 | { |
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441 | put (); |
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442 | return false; |
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443 | } |
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444 | } |
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445 | |
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446 | return true; |
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447 | } |
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448 | |
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449 | void |
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450 | rxvt_ptytty::set_utf8_mode (bool on) |
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451 | { |
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452 | #ifdef IUTF8 |
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453 | if (pty < 0) |
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454 | return; |
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455 | |
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456 | struct termios tio; |
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457 | |
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458 | if (tcgetattr (pty, &tio) != -1) |
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459 | { |
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460 | tcflag_t new_cflag = tio.c_iflag; |
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461 | |
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462 | if (on) |
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463 | new_cflag |= IUTF8; |
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464 | else |
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465 | new_cflag &= ~IUTF8; |
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466 | |
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467 | if (new_cflag != tio.c_iflag) |
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468 | { |
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469 | tio.c_iflag = new_cflag; |
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470 | tcsetattr (pty, TCSANOW, &tio); |
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471 | } |
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472 | } |
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473 | #endif |
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474 | } |
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475 | |
322 | /*----------------------- end-of-file (C source) -----------------------*/ |
476 | /*----------------------- end-of-file (C source) -----------------------*/ |
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477 | |