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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.26 by root, Mon Jan 2 15:10:18 2006 UTC vs.
Revision 1.47 by root, Thu Jan 19 10:27:27 2006 UTC

… …
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.
… …
22 *---------------------------------------------------------------------*/ 22 *---------------------------------------------------------------------*/
23 23
24#include "../config.h" /* NECESSARY */ 24#include "../config.h" /* NECESSARY */
25#include "rxvt.h" 25#include "rxvt.h"
26 26
27#ifdef HAVE_STDLIB_H
28# include <cstdlib> 27#include <cstdlib>
29#endif 28#include <cstring>
30#ifdef HAVE_SYS_TYPES_H 29
31# include <sys/types.h> 30#include <sys/types.h>
32#endif 31#include <sys/socket.h>
33#ifdef HAVE_UNISTD_H
34# include <unistd.h> 32#include <unistd.h>
35#endif
36#if defined(HAVE_STRING_H)
37# include <cstring>
38#endif
39#ifdef HAVE_FCNTL_H
40# include <fcntl.h> 33#include <fcntl.h>
41#endif 34
42#ifdef HAVE_SYS_IOCTL_H 35#ifdef HAVE_SYS_IOCTL_H
43# include <sys/ioctl.h> 36# include <sys/ioctl.h>
44#endif 37#endif
45#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) 38#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H)
46# include <sys/stropts.h> /* for I_PUSH */ 39# include <sys/stropts.h> /* for I_PUSH */
47#endif 40#endif
48#ifdef HAVE_ISASTREAM 41#ifdef HAVE_ISASTREAM
49# include <stropts.h> 42# include <stropts.h>
50#endif 43#endif
51#ifdef HAVE_PTY_H 44#if defined(HAVE_PTY_H)
52# include <pty.h> 45# include <pty.h>
53#endif 46#elif defined(HAVE_LIBUTIL_H)
54
55// better do this via configure, but....
56#if defined(__FreeBSD__)
57# include <libutil.h> 47# include <libutil.h>
58#elif defined(__DARWIN__) || (defined (__MACH__) && defined (__APPLE__)) 48#elif defined(HAVE_UTIL_H)
59# include <util.h> 49# include <util.h>
60#endif 50#endif
61 51
62#include <cstdio> 52#include <cstdio>
63#include <grp.h> 53#include <grp.h>
54
55#include "rxvtutil.h"
56#include "fdpass.h"
57#include "ptytty.h"
58
59/////////////////////////////////////////////////////////////////////////////
64 60
65/* ------------------------------------------------------------------------- * 61/* ------------------------------------------------------------------------- *
66 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 62 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
67 * ------------------------------------------------------------------------- */ 63 * ------------------------------------------------------------------------- */
68/* 64/*
69 * Returns pty file descriptor, or -1 on failure 65 * Returns pty file descriptor, or -1 on failure
70 * If successful, ttydev is set to the name of the slave device. 66 * If successful, ttydev is set to the name of the slave device.
71 * fd_tty _may_ also be set to an open fd to the slave device 67 * fd_tty _may_ also be set to an open fd to the slave device
72 */ 68 */
73static int 69static inline int
74get_pty (int *fd_tty, char **ttydev) 70get_pty_streams (int *fd_tty, char **ttydev)
75{ 71{
72#ifdef NO_SETOWNER_TTYDEV
76 int pfd; 73 int pfd;
77 74
75# if defined(PTYS_ARE_GETPT)
76 pfd = getpt();
77# elif defined(PTYS_ARE_POSIX)
78 pfd = posix_openpt (O_RDWR);
79# else
80 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
81# endif
82 if (pfd >= 0)
83 {
84 if (grantpt (pfd) == 0 /* change slave permissions */
85 && unlockpt (pfd) == 0)
86 { /* slave now unlocked */
87 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
88 return pfd;
89 }
90
91 close (pfd);
92 }
93#endif
94
95 return -1;
96}
97
98static inline int
99get_pty_openpty (int *fd_tty, char **ttydev)
100{
78#ifdef PTYS_ARE_OPENPTY 101#ifdef PTYS_ARE_OPENPTY
102 int pfd;
103 int res;
79 char tty_name[sizeof "/dev/pts/????\0"]; 104 char tty_name[sizeof "/dev/pts/????\0"];
80 105
81 if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) 106 res = openpty (&pfd, fd_tty, tty_name, NULL, NULL);
107 if (res != -1)
82 { 108 {
83 *ttydev = strdup (tty_name); 109 *ttydev = strdup (tty_name);
84 return pfd; 110 return pfd;
85 } 111 }
86#endif 112#endif
87 113
114 return -1;
115}
116
117static inline int
118get_pty__getpty (int *fd_tty, char **ttydev)
119{
88#ifdef PTYS_ARE__GETPTY 120#ifdef PTYS_ARE__GETPTY
121 int pfd;
122
89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 123 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
90 if (*ttydev != NULL) 124 if (*ttydev != NULL)
91 return pfd; 125 return pfd;
92#endif 126#endif
93 127
94#ifdef PTYS_ARE_GETPTY 128 return -1;
95 char *ptydev; 129}
96 130
97 while ((ptydev = getpty ()) != NULL) 131static inline int
98 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) 132get_pty_ptc (int *fd_tty, char **ttydev)
99 { 133{
100 *ttydev = ptydev;
101 return pfd;
102 }
103#endif
104
105#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
106# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
107
108 {
109# ifdef PTYS_ARE_GETPT
110 pfd = getpt ();
111# else
112 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
113# endif
114
115 if (pfd >= 0)
116 {
117 if (grantpt (pfd) == 0 /* change slave permissions */
118 && unlockpt (pfd) == 0)
119 { /* slave now unlocked */
120 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
121 return pfd;
122 }
123 close (pfd);
124 }
125 }
126# endif
127#endif
128
129#ifdef PTYS_ARE_PTC 134#ifdef PTYS_ARE_PTC
135 int pfd;
136
130 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 137 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
131 { 138 {
132 *ttydev = strdup (ttyname (pfd)); 139 *ttydev = strdup (ttyname (pfd));
133 return pfd; 140 return pfd;
134 } 141 }
135#endif 142#endif
136 143
144 return -1;
145}
146
147static inline int
148get_pty_clone (int *fd_tty, char **ttydev)
149{
137#ifdef PTYS_ARE_CLONE 150#ifdef PTYS_ARE_CLONE
151 int pfd;
152
138 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 153 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
139 { 154 {
140 *ttydev = strdup (ptsname (pfd)); 155 *ttydev = strdup (ptsname (pfd));
141 return pfd; 156 return pfd;
142 } 157 }
143#endif 158#endif
144 159
160 return -1;
161}
162
163static inline int
164get_pty_numeric (int *fd_tty, char **ttydev)
165{
145#ifdef PTYS_ARE_NUMERIC 166#ifdef PTYS_ARE_NUMERIC
146 { 167 int pfd;
147 int idx; 168 int idx;
148 char *c1, *c2; 169 char *c1, *c2;
149 char pty_name[] = "/dev/ptyp???"; 170 char pty_name[] = "/dev/ptyp???";
150 char tty_name[] = "/dev/ttyp???"; 171 char tty_name[] = "/dev/ttyp???";
151 172
152 c1 = &(pty_name[sizeof (pty_name) - 4]); 173 c1 = &(pty_name[sizeof (pty_name) - 4]);
153 c2 = &(tty_name[sizeof (tty_name) - 4]); 174 c2 = &(tty_name[sizeof (tty_name) - 4]);
175
154 for (idx = 0; idx < 256; idx++) 176 for (idx = 0; idx < 256; idx++)
155 { 177 {
156 sprintf (c1, "%d", idx); 178 sprintf (c1, "%d", idx);
157 sprintf (c2, "%d", idx); 179 sprintf (c2, "%d", idx);
180
158 if (access (tty_name, F_OK) < 0) 181 if (access (tty_name, F_OK) < 0)
159 { 182 {
160 idx = 256; 183 idx = 256;
161 break; 184 break;
162 } 185 }
163 186
164 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 187 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
165 { 188 {
166 if (access (tty_name, R_OK | W_OK) == 0) 189 if (access (tty_name, R_OK | W_OK) == 0)
167 { 190 {
168 *ttydev = strdup (tty_name); 191 *ttydev = strdup (tty_name);
169 return pfd; 192 return pfd;
170 } 193 }
171 194
172 close (pfd); 195 close (pfd);
173 } 196 }
174 } 197 }
175 }
176#endif 198#endif
177 199
200 return -1;
201}
202
203static inline int
204get_pty_searched (int *fd_tty, char **ttydev)
205{
178#ifdef PTYS_ARE_SEARCHED 206#ifdef PTYS_ARE_SEARCHED
179 {
180 const char *c1, *c2;
181 char pty_name[] = "/dev/pty??";
182 char tty_name[] = "/dev/tty??";
183
184# ifndef PTYCHAR1 207# ifndef PTYCHAR1
185# define PTYCHAR1 "pqrstuvwxyz" 208# define PTYCHAR1 "pqrstuvwxyz"
186# endif 209# endif
187# ifndef PTYCHAR2 210# ifndef PTYCHAR2
188# define PTYCHAR2 "0123456789abcdef" 211# define PTYCHAR2 "0123456789abcdef"
189# endif 212# endif
213 int pfd;
214 const char *c1, *c2;
215 char pty_name[] = "/dev/pty??";
216 char tty_name[] = "/dev/tty??";
190 217
191 for (c1 = PTYCHAR1; *c1; c1++) 218 for (c1 = PTYCHAR1; *c1; c1++)
192 { 219 {
193 pty_name[ (sizeof (pty_name) - 3)] = 220 pty_name[ (sizeof (pty_name) - 3)] =
194 tty_name[ (sizeof (pty_name) - 3)] = *c1; 221 tty_name[ (sizeof (pty_name) - 3)] = *c1;
222
195 for (c2 = PTYCHAR2; *c2; c2++) 223 for (c2 = PTYCHAR2; *c2; c2++)
196 { 224 {
197 pty_name[ (sizeof (pty_name) - 2)] = 225 pty_name[ (sizeof (pty_name) - 2)] =
198 tty_name[ (sizeof (pty_name) - 2)] = *c2; 226 tty_name[ (sizeof (pty_name) - 2)] = *c2;
227
199 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 228 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
200 { 229 {
201 if (access (tty_name, R_OK | W_OK) == 0) 230 if (access (tty_name, R_OK | W_OK) == 0)
202 { 231 {
203 *ttydev = strdup (tty_name); 232 *ttydev = strdup (tty_name);
204 return pfd; 233 return pfd;
205 } 234 }
206 235
207 close (pfd); 236 close (pfd);
208 } 237 }
209 } 238 }
210 } 239 }
211 }
212#endif 240#endif
241
242 return -1;
243}
244
245static int
246get_pty (int *fd_tty, char **ttydev)
247{
248 int pfd;
249
250 if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1
251 || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1
252 || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1
253 || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1
254 || (pfd = get_pty_clone (fd_tty, ttydev)) != -1
255 || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1
256 || (pfd = get_pty_searched (fd_tty, ttydev)) != -1)
257 return pfd;
213 258
214 return -1; 259 return -1;
215} 260}
216 261
217/*----------------------------------------------------------------------*/ 262/*----------------------------------------------------------------------*/
… …
227/*----------------------------------------------------------------------*/ 272/*----------------------------------------------------------------------*/
228/* 273/*
229 * Make our tty a controlling tty so that /dev/tty points to us 274 * Make our tty a controlling tty so that /dev/tty points to us
230 */ 275 */
231static int 276static int
232control_tty (int fd_tty, const char *ttydev) 277control_tty (int fd_tty)
233{ 278{
234#ifndef __QNX__
235 int fd;
236
237 /* ---------------------------------------- */
238# ifdef HAVE_SETSID
239 setsid (); 279 setsid ();
240# endif
241# if defined(HAVE_SETPGID)
242 setpgid (0, 0);
243# elif defined(HAVE_SETPGRP)
244 setpgrp (0, 0);
245# endif
246 280
247 /* ---------------------------------------- */
248# ifdef TIOCNOTTY
249 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
250 if (fd >= 0)
251 {
252 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
253 close (fd);
254 }
255# endif
256
257 /* ---------------------------------------- */
258 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
259 if (fd >= 0)
260 close (fd); /* ouch: still have controlling tty */
261
262 /* ---------------------------------------- */
263#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 281#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
264 /* 282 /*
265 * Push STREAMS modules: 283 * Push STREAMS modules:
266 * ptem: pseudo-terminal hardware emulation module. 284 * ptem: pseudo-terminal hardware emulation module.
267 * ldterm: standard terminal line discipline. 285 * ldterm: standard terminal line discipline.
… …
285 ioctl (fd_tty, I_PUSH, "ptem"); 303 ioctl (fd_tty, I_PUSH, "ptem");
286 ioctl (fd_tty, I_PUSH, "ldterm"); 304 ioctl (fd_tty, I_PUSH, "ldterm");
287 ioctl (fd_tty, I_PUSH, "ttcompat"); 305 ioctl (fd_tty, I_PUSH, "ttcompat");
288 } 306 }
289#endif 307#endif
290 /* ---------------------------------------- */ 308
291# if defined(TIOCSCTTY)
292 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 309 ioctl (fd_tty, TIOCSCTTY, NULL);
293# elif defined(TIOCSETCTTY) 310
294 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
295# else
296 fd = open (ttydev, O_RDWR);
297 if (fd >= 0)
298 close (fd);
299# endif
300 /* ---------------------------------------- */
301 fd = open ("/dev/tty", O_WRONLY); 311 int fd = open ("/dev/tty", O_WRONLY);
302 if (fd < 0) 312 if (fd < 0)
303 return -1; /* fatal */ 313 return -1; /* fatal */
314
304 close (fd); 315 close (fd);
305 /* ---------------------------------------- */
306#endif /* ! __QNX__ */
307 316
308 return 0; 317 return 0;
309} 318}
319
320void
321rxvt_ptytty::close_tty ()
322{
323 if (tty < 0)
324 return;
325
326 close (tty);
327 tty = -1;
328}
329
330bool
331rxvt_ptytty::make_controlling_tty ()
332{
333 return control_tty (tty) >= 0;
334}
335
336void
337rxvt_ptytty::set_utf8_mode (bool on)
338{
339#ifdef IUTF8
340 if (pty < 0)
341 return;
342
343 struct termios tio;
344
345 if (tcgetattr (pty, &tio) != -1)
346 {
347 tcflag_t new_cflag = tio.c_iflag;
348
349 if (on)
350 new_cflag |= IUTF8;
351 else
352 new_cflag &= ~IUTF8;
353
354 if (new_cflag != tio.c_iflag)
355 {
356 tio.c_iflag = new_cflag;
357 tcsetattr (pty, TCSANOW, &tio);
358 }
359 }
360#endif
361}
362
363/////////////////////////////////////////////////////////////////////////////
310 364
311#ifndef NO_SETOWNER_TTYDEV 365#ifndef NO_SETOWNER_TTYDEV
312static struct ttyconf { 366static struct ttyconf {
313 gid_t gid; 367 gid_t gid;
314 mode_t mode; 368 mode_t mode;
… …
330 gid = getgid (); 384 gid = getgid ();
331 } 385 }
332 } 386 }
333} ttyconf; 387} ttyconf;
334 388
389/////////////////////////////////////////////////////////////////////////////
390
335void 391void
336rxvt_ptytty::privileges (rxvt_privaction action) 392rxvt_ptytty_unix::privileges (rxvt_privaction action)
337{ 393{
338 if (!name || !*name) 394 if (!name || !*name)
339 return; 395 return;
340
341 rxvt_privileges (RESTORE);
342 396
343 if (action == SAVE) 397 if (action == SAVE)
344 { 398 {
345# ifndef RESET_TTY_TO_COMMON_DEFAULTS 399# ifndef RESET_TTY_TO_COMMON_DEFAULTS
346 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ 400 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
… …
367 } 421 }
368# else 422# else
369 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); 423 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
370 chown (name, 0, 0); 424 chown (name, 0, 0);
371# endif 425# endif
372
373 } 426 }
374
375 rxvt_privileges (IGNORE);
376} 427}
377#endif 428#endif
378 429
379rxvt_ptytty::rxvt_ptytty () 430rxvt_ptytty_unix::rxvt_ptytty_unix ()
380{ 431{
381 pty = tty = -1; 432 pty = tty = -1;
382 name = 0; 433 name = 0;
383#ifndef NO_SETOWNER_TTYDEV 434#ifndef NO_SETOWNER_TTYDEV
384 saved = false; 435 saved = false;
385#endif 436#endif
437#if UTMP_SUPPORT
438 cmd_pid = 0;
439#endif
386} 440}
387 441
388rxvt_ptytty::~rxvt_ptytty () 442rxvt_ptytty_unix::~rxvt_ptytty_unix ()
389{ 443{
444#if UTMP_SUPPORT
445 logout ();
446#endif
390 put (); 447 put ();
391} 448}
392 449
393void 450void
394
395rxvt_ptytty::close_tty ()
396{
397 if (tty >= 0) close (tty);
398 tty = -1;
399}
400
401void
402rxvt_ptytty::put () 451rxvt_ptytty_unix::put ()
403{ 452{
404#ifndef NO_SETOWNER_TTYDEV 453#ifndef NO_SETOWNER_TTYDEV
405 if (tty >= 0)
406 privileges (RESTORE); 454 privileges (RESTORE);
407#endif 455#endif
408 456
409 if (pty >= 0) close (pty); 457 if (pty >= 0) close (pty);
410 close_tty (); 458 close_tty ();
411 free (name); 459 free (name);
… …
413 pty = tty = -1; 461 pty = tty = -1;
414 name = 0; 462 name = 0;
415} 463}
416 464
417bool 465bool
418rxvt_ptytty::make_controlling_tty ()
419{
420 return control_tty (tty, name) >= 0;
421}
422
423bool
424rxvt_ptytty::get () 466rxvt_ptytty_unix::get ()
425{ 467{
426 /* get master (pty) */ 468 /* get master (pty) */
427 if ((pty = get_pty (&tty, &name)) < 0) 469 if ((pty = get_pty (&tty, &name)) < 0)
428 return false; 470 return false;
429 471
… …
444 } 486 }
445 487
446 return true; 488 return true;
447} 489}
448 490
491#if PTYTTY_HELPER
492
493static int sock_fd;
494static int pid;
495
496struct command
497{
498 enum { get, login, destroy } type;
499
500 rxvt_ptytty *id;
501
502 bool login_shell;
503 int cmd_pid;
504 char hostname[512]; // arbitrary, but should be plenty
505};
506
507struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty
508{
509 rxvt_ptytty *id;
510
511 ~rxvt_ptytty_proxy ();
512
513 bool get ();
514 void login (int cmd_pid, bool login_shell, const char *hostname);
515};
516
517bool
518rxvt_ptytty_proxy::get ()
519{
520 command cmd;
521
522 cmd.type = command::get;
523
524 write (sock_fd, &cmd, sizeof (cmd));
525
526 if (read (sock_fd, &id, sizeof (id)) != sizeof (id))
527 rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n");
528
529 if (!id)
530 return false;
531
532 if ((pty = rxvt_recv_fd (sock_fd)) < 0
533 || (tty = rxvt_recv_fd (sock_fd)) < 0)
534 rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n");
535
536 return true;
537}
538
449void 539void
450rxvt_ptytty::set_utf8_mode (bool on) 540rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname)
451{ 541{
452#ifdef IUTF8 542 command cmd;
453 if (pty != -1)
454 {
455 struct termios tio;
456 543
457 if (tcgetattr (pty, &tio) != -1) 544 cmd.type = command::login;
545 cmd.id = id;
546 cmd.cmd_pid = cmd_pid;
547 cmd.login_shell = login_shell;
548 strncpy (cmd.hostname, hostname, sizeof (cmd.hostname));
549
550 write (sock_fd, &cmd, sizeof (cmd));
551}
552
553rxvt_ptytty_proxy::~rxvt_ptytty_proxy ()
554{
555 command cmd;
556
557 cmd.type = command::destroy;
558 cmd.id = id;
559
560 write (sock_fd, &cmd, sizeof (cmd));
561}
562
563static
564void serve ()
565{
566 command cmd;
567 vector<rxvt_ptytty *> ptys;
568
569 while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command))
570 {
571 if (cmd.type == command::get)
572 {
573 // -> id ptyfd ttyfd
574 cmd.id = new rxvt_ptytty_unix;
575
576 if (cmd.id->get ())
458 { 577 {
459 tcflag_t new_cflag = tio.c_iflag; 578 write (sock_fd, &cmd.id, sizeof (cmd.id));
579 ptys.push_back (cmd.id);
460 580
461 if (on) 581 rxvt_send_fd (sock_fd, cmd.id->pty);
462 new_cflag |= IUTF8; 582 rxvt_send_fd (sock_fd, cmd.id->tty);
583 }
463 else 584 else
464 new_cflag &= ~IUTF8;
465
466 if (new_cflag != tio.c_iflag)
467 { 585 {
468 tio.c_iflag = new_cflag; 586 delete cmd.id;
469 tcsetattr (pty, TCSANOW, &tio); 587 cmd.id = 0;
588 write (sock_fd, &cmd.id, sizeof (cmd.id));
470 } 589 }
471 } 590 }
591 else if (cmd.type == command::login)
592 {
593#if UTMP_SUPPORT
594 if (find (ptys.begin (), ptys.end (), cmd.id))
595 {
596 cmd.hostname[sizeof (cmd.hostname) - 1] = 0;
597 cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname);
598 }
599#endif
600 }
601 else if (cmd.type == command::destroy)
602 {
603 rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id);
604
605 if (pty)
606 {
607 delete *pty;
608 ptys.erase (pty);
609 }
610 }
611 else
612 break;
613 }
614
615 // destroy all ptys
616 for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); )
617 delete *i;
618}
619
620void rxvt_ptytty_server ()
621{
622 int sv[2];
623
624 if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv))
625 rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n");
626
627 pid = fork ();
628
629 if (pid < 0)
630 rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n");
631
632 if (pid)
472 } 633 {
634 // client, urxvt
635 sock_fd = sv[0];
636 close (sv[1]);
637 fcntl (sock_fd, F_SETFD, FD_CLOEXEC);
638 }
639 else
640 {
641 // server, pty-helper
642 sock_fd = sv[1];
643
644 for (int fd = 0; fd < 1023; fd++)
645 if (fd != sock_fd)
646 close (fd);
647
648 serve ();
649 _exit (EXIT_SUCCESS);
650 }
651}
473#endif 652#endif
653
654// a "factory" *g*
655rxvt_ptytty *
656rxvt_new_ptytty ()
657{
658#if PTYTTY_HELPER
659 if (pid > 0)
660 // use helper process
661 return new rxvt_ptytty_proxy;
662 else
663#endif
664 return new rxvt_ptytty_unix;
474} 665}
475 666
476/*----------------------- end-of-file (C source) -----------------------*/ 667/*----------------------- end-of-file (C source) -----------------------*/
477 668

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