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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.22 by root, Tue Jan 11 04:44:57 2005 UTC vs.
Revision 1.53 by ayin, Sat Jan 21 18:15:26 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(HAVE_DEV_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
51#ifdef TTY_GID_SUPPORT
52#include <grp.h>
53#endif
61 54
62#include <cstdio> 55#include <cstdio>
63#include <grp.h> 56
57#include "rxvtutil.h"
58#include "fdpass.h"
59#include "ptytty.h"
60
61/////////////////////////////////////////////////////////////////////////////
64 62
65/* ------------------------------------------------------------------------- * 63/* ------------------------------------------------------------------------- *
66 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 64 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
67 * ------------------------------------------------------------------------- */ 65 * ------------------------------------------------------------------------- */
68/* 66/*
69 * Returns pty file descriptor, or -1 on failure 67 * Returns pty file descriptor, or -1 on failure
70 * If successful, ttydev is set to the name of the slave device. 68 * 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 69 * fd_tty _may_ also be set to an open fd to the slave device
72 */ 70 */
71#if defined(UNIX98_PTY)
73static int 72static int
74get_pty (int *fd_tty, char **ttydev) 73get_pty (int *fd_tty, char **ttydev)
75{ 74{
76 int pfd; 75 int pfd;
77 76
78#ifdef PTYS_ARE_OPENPTY 77# if defined(HAVE_GETPT)
79 char tty_name[sizeof "/dev/pts/????\0"]; 78 pfd = getpt();
79# elif defined(HAVE_POSIX_OPENPT)
80 pfd = posix_openpt (O_RDWR);
81# else
82 pfd = open (CLONE_DEVICE, O_RDWR | O_NOCTTY, 0);
83# endif
84 if (pfd >= 0)
85 {
86 if (grantpt (pfd) == 0 /* change slave permissions */
87 && unlockpt (pfd) == 0)
88 { /* slave now unlocked */
89 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
90 return pfd;
91 }
80 92
93 close (pfd);
94 }
95
96 return -1;
97}
98#elif defined(HAVE_OPENPTY)
99static int
100get_pty (int *fd_tty, char **ttydev)
101{
102 int pfd;
103 int res;
104 char tty_name[32];
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
87 112
88#ifdef PTYS_ARE__GETPTY 113 return -1;
114}
115#elif defined(HAVE__GETPTY)
116static int
117get_pty (int *fd_tty, char **ttydev)
118{
119 int pfd;
120
89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 121 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
90 if (*ttydev != NULL) 122 if (*ttydev != NULL)
91 return pfd; 123 return pfd;
92#endif
93 124
94#ifdef PTYS_ARE_GETPTY 125 return -1;
126}
127#elif defined(HAVE_DEV_PTC)
128static int
129get_pty (int *fd_tty, char **ttydev)
130{
131 int pfd;
95 132
96 char *ptydev;
97
98 while ((ptydev = getpty ()) != NULL)
99 if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0)
100 {
101 *ttydev = ptydev;
102 return pfd;
103 }
104#endif
105
106#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
107# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX)
108
109 {
110# ifdef PTYS_ARE_GETPT
111 pfd = getpt ();
112# else
113 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
114# endif
115
116 if (pfd >= 0)
117 {
118 if (grantpt (pfd) == 0 /* change slave permissions */
119 && unlockpt (pfd) == 0)
120 { /* slave now unlocked */
121 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
122 return pfd;
123 }
124 close (pfd);
125 }
126 }
127# endif
128#endif
129
130#ifdef PTYS_ARE_PTC
131 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 133 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
132 { 134 {
133 *ttydev = strdup (ttyname (pfd)); 135 *ttydev = strdup (ttyname (pfd));
134 return pfd; 136 return pfd;
135 } 137 }
136#endif
137 138
138#ifdef PTYS_ARE_CLONE 139 return -1;
140}
141#elif defined(HAVE_DEV_CLONE)
142static int
143get_pty (int *fd_tty, char **ttydev)
144{
145 int pfd;
146
139 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 147 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
140 { 148 {
141 *ttydev = strdup (ptsname (pfd)); 149 *ttydev = strdup (ptsname (pfd));
142 return pfd; 150 return pfd;
143 } 151 }
144#endif
145
146#ifdef PTYS_ARE_NUMERIC
147 {
148 int idx;
149 char *c1, *c2;
150 char pty_name[] = "/dev/ptyp???";
151 char tty_name[] = "/dev/ttyp???";
152
153 c1 = &(pty_name[sizeof (pty_name) - 4]);
154 c2 = &(tty_name[sizeof (tty_name) - 4]);
155 for (idx = 0; idx < 256; idx++)
156 {
157 sprintf (c1, "%d", idx);
158 sprintf (c2, "%d", idx);
159 if (access (tty_name, F_OK) < 0)
160 {
161 idx = 256;
162 break;
163 }
164
165 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
166 {
167 if (access (tty_name, R_OK | W_OK) == 0)
168 {
169 *ttydev = strdup (tty_name);
170 return pfd;
171 }
172
173 close (pfd);
174 }
175 }
176 }
177#endif
178
179#ifdef PTYS_ARE_SEARCHED
180 {
181 const char *c1, *c2;
182 char pty_name[] = "/dev/pty??";
183 char tty_name[] = "/dev/tty??";
184
185# ifndef PTYCHAR1
186# define PTYCHAR1 "pqrstuvwxyz"
187# endif
188# ifndef PTYCHAR2
189# define PTYCHAR2 "0123456789abcdef"
190# endif
191
192 for (c1 = PTYCHAR1; *c1; c1++)
193 {
194 pty_name[ (sizeof (pty_name) - 3)] =
195 tty_name[ (sizeof (pty_name) - 3)] = *c1;
196 for (c2 = PTYCHAR2; *c2; c2++)
197 {
198 pty_name[ (sizeof (pty_name) - 2)] =
199 tty_name[ (sizeof (pty_name) - 2)] = *c2;
200 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
201 {
202 if (access (tty_name, R_OK | W_OK) == 0)
203 {
204 *ttydev = strdup (tty_name);
205 return pfd;
206 }
207
208 close (pfd);
209 }
210 }
211 }
212 }
213#endif
214 152
215 return -1; 153 return -1;
216} 154}
155#else
156/* Based on the code in openssh/openbsd-compat/bsd-openpty.c */
157static int
158get_pty (int *fd_tty, char **ttydev)
159{
160 int pfd;
161 int i;
162 char pty_name[32];
163 char tty_name[32];
164 const char *majors = "pqrstuvwxyzabcde";
165 const char *minors = "0123456789abcdef";
166 for (i = 0; i < 256; i++)
167 {
168 snprintf(pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]);
169 snprintf(tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]);
170 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
171 {
172 snprintf(pty_name, 32, "/dev/ptyp%d", i);
173 snprintf(tty_name, 32, "/dev/ttyp%d", i);
174 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1)
175 continue;
176 }
177 if (access (tty_name, R_OK | W_OK) == 0)
178 {
179 *ttydev = strdup (tty_name);
180 return pfd;
181 }
182
183 close (pfd);
184 }
185}
186#endif
217 187
218/*----------------------------------------------------------------------*/ 188/*----------------------------------------------------------------------*/
219/* 189/*
220 * Returns tty file descriptor, or -1 on failure 190 * Returns tty file descriptor, or -1 on failure
221 */ 191 */
… …
228/*----------------------------------------------------------------------*/ 198/*----------------------------------------------------------------------*/
229/* 199/*
230 * Make our tty a controlling tty so that /dev/tty points to us 200 * Make our tty a controlling tty so that /dev/tty points to us
231 */ 201 */
232static int 202static int
233control_tty (int fd_tty, const char *ttydev) 203control_tty (int fd_tty)
234{ 204{
235#ifndef __QNX__
236 int fd;
237
238 /* ---------------------------------------- */
239# ifdef HAVE_SETSID
240 setsid (); 205 setsid ();
241# endif
242# if defined(HAVE_SETPGID)
243 setpgid (0, 0);
244# elif defined(HAVE_SETPGRP)
245 setpgrp (0, 0);
246# endif
247 206
248 /* ---------------------------------------- */
249# ifdef TIOCNOTTY
250 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
251 if (fd >= 0)
252 {
253 ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */
254 close (fd);
255 }
256# endif
257
258 /* ---------------------------------------- */
259 fd = open ("/dev/tty", O_RDWR | O_NOCTTY);
260 if (fd >= 0)
261 close (fd); /* ouch: still have controlling tty */
262
263 /* ---------------------------------------- */
264#if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 207#if defined(HAVE_DEV_PTMX) && defined(I_PUSH)
265 /* 208 /*
266 * Push STREAMS modules: 209 * Push STREAMS modules:
267 * ptem: pseudo-terminal hardware emulation module. 210 * ptem: pseudo-terminal hardware emulation module.
268 * ldterm: standard terminal line discipline. 211 * ldterm: standard terminal line discipline.
269 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 212 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
286 ioctl (fd_tty, I_PUSH, "ptem"); 229 ioctl (fd_tty, I_PUSH, "ptem");
287 ioctl (fd_tty, I_PUSH, "ldterm"); 230 ioctl (fd_tty, I_PUSH, "ldterm");
288 ioctl (fd_tty, I_PUSH, "ttcompat"); 231 ioctl (fd_tty, I_PUSH, "ttcompat");
289 } 232 }
290#endif 233#endif
291 /* ---------------------------------------- */ 234
292# if defined(TIOCSCTTY)
293 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 235 ioctl (fd_tty, TIOCSCTTY, NULL);
294# elif defined(TIOCSETCTTY) 236
295 fd = ioctl (fd_tty, TIOCSETCTTY, NULL);
296# else
297 fd = open (ttydev, O_RDWR);
298 if (fd >= 0)
299 close (fd);
300# endif
301 /* ---------------------------------------- */
302 fd = open ("/dev/tty", O_WRONLY); 237 int fd = open ("/dev/tty", O_WRONLY);
303 if (fd < 0) 238 if (fd < 0)
304 return -1; /* fatal */ 239 return -1; /* fatal */
240
305 close (fd); 241 close (fd);
306 /* ---------------------------------------- */
307#endif /* ! __QNX__ */
308 242
309 return 0; 243 return 0;
310} 244}
311 245
312#ifndef NO_SETOWNER_TTYDEV 246void
247rxvt_ptytty::close_tty ()
248{
249 if (tty < 0)
250 return;
251
252 close (tty);
253 tty = -1;
254}
255
256bool
257rxvt_ptytty::make_controlling_tty ()
258{
259 return control_tty (tty) >= 0;
260}
261
262void
263rxvt_ptytty::set_utf8_mode (bool on)
264{
265#ifdef IUTF8
266 if (pty < 0)
267 return;
268
269 struct termios tio;
270
271 if (tcgetattr (pty, &tio) != -1)
272 {
273 tcflag_t new_cflag = tio.c_iflag;
274
275 if (on)
276 new_cflag |= IUTF8;
277 else
278 new_cflag &= ~IUTF8;
279
280 if (new_cflag != tio.c_iflag)
281 {
282 tio.c_iflag = new_cflag;
283 tcsetattr (pty, TCSANOW, &tio);
284 }
285 }
286#endif
287}
288
313static struct ttyconf { 289static struct ttyconf {
314 gid_t gid; 290 gid_t gid;
315 mode_t mode; 291 mode_t mode;
316 292
317 ttyconf () 293 ttyconf ()
… …
326 } 302 }
327 else 303 else
328#endif /* TTY_GID_SUPPORT */ 304#endif /* TTY_GID_SUPPORT */
329 { 305 {
330 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; 306 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
331 gid = getgid (); 307 gid = 0;
332 } 308 }
333 } 309 }
334} ttyconf; 310} ttyconf;
335 311
312rxvt_ptytty_unix::rxvt_ptytty_unix ()
313{
314 name = 0;
315#if UTMP_SUPPORT
316 cmd_pid = 0;
317#endif
318}
319
320rxvt_ptytty_unix::~rxvt_ptytty_unix ()
321{
322#if UTMP_SUPPORT
323 logout ();
324#endif
325 put ();
326}
327
336void 328void
337rxvt_ptytty::privileges (rxvt_privaction action) 329rxvt_ptytty_unix::put ()
338{ 330{
339 rxvt_privileges (RESTORE); 331 chmod (name, RESTORE_TTY_MODE);
332 chown (name, 0, ttyconf.gid);
340 333
341 if (action == SAVE) 334 close_tty ();
342 {
343 //next_tty_action = RESTORE;
344# ifndef RESET_TTY_TO_COMMON_DEFAULTS
345 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
346 if (lstat (name, &savestat) < 0) /* you lose out */
347 ;//next_tty_action = IGNORE;
348 else
349# endif
350 335
351 { 336 if (pty >= 0)
352 chown (name, getuid (), ttyconf.gid); /* fail silently */ 337 close (pty);
353 chmod (name, ttyconf.mode);
354# ifdef HAVE_REVOKE
355 revoke (name);
356# endif
357 338
358 } 339 free (name);
359 }
360 else
361 { /* action == RESTORE */
362 //next_tty_action = IGNORE;
363# ifndef RESET_TTY_TO_COMMON_DEFAULTS
364 chmod (name, savestat.st_mode);
365 chown (name, savestat.st_uid, savestat.st_gid);
366# else
367 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
368 chown (name, 0, 0);
369# endif
370 340
371 }
372
373 rxvt_privileges (IGNORE);
374}
375#endif
376
377rxvt_ptytty::rxvt_ptytty ()
378{
379 pty = tty = -1; 341 pty = tty = -1;
380 name = 0; 342 name = 0;
381} 343}
382 344
383rxvt_ptytty::~rxvt_ptytty ()
384{
385 put ();
386}
387
388void
389
390rxvt_ptytty::close_tty ()
391{
392 if (tty >= 0) close (tty);
393 tty = -1;
394}
395
396void
397rxvt_ptytty::put ()
398{
399#ifndef NO_SETOWNER_TTYDEV
400 if (tty >= 0)
401 privileges (RESTORE);
402#endif
403
404 if (pty >= 0) close (pty);
405 close_tty ();
406 free (name);
407
408 pty = tty = -1;
409 name = 0;
410}
411
412bool 345bool
413rxvt_ptytty::make_controlling_tty ()
414{
415 return control_tty (tty, name) >= 0;
416}
417
418bool
419rxvt_ptytty::get () 346rxvt_ptytty_unix::get ()
420{ 347{
421 /* get master (pty) */ 348 /* get master (pty) */
422 if ((pty = get_pty (&tty, &name)) < 0) 349 if ((pty = get_pty (&tty, &name)) < 0)
423 return false; 350 return false;
424 351
… …
426 353
427 /* get slave (tty) */ 354 /* get slave (tty) */
428 if (tty < 0) 355 if (tty < 0)
429 { 356 {
430#ifndef NO_SETOWNER_TTYDEV 357#ifndef NO_SETOWNER_TTYDEV
431 privileges (SAVE); 358 chown (name, getuid (), ttyconf.gid); /* fail silently */
359 chmod (name, ttyconf.mode);
360# ifdef HAVE_REVOKE
361 revoke (name);
362# endif
432#endif 363#endif
433 364
434 if ((tty = get_tty (name)) < 0) 365 if ((tty = get_tty (name)) < 0)
435 { 366 {
436 put (); 367 put ();
… …
439 } 370 }
440 371
441 return true; 372 return true;
442} 373}
443 374
375#if PTYTTY_HELPER
376
377static int sock_fd;
378static int pid;
379
380struct command
381{
382 enum { get, login, destroy } type;
383
384 rxvt_ptytty *id;
385
386 bool login_shell;
387 int cmd_pid;
388 char hostname[512]; // arbitrary, but should be plenty
389};
390
391struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty
392{
393 rxvt_ptytty *id;
394
395 ~rxvt_ptytty_proxy ();
396
397 bool get ();
398 void login (int cmd_pid, bool login_shell, const char *hostname);
399};
400
401bool
402rxvt_ptytty_proxy::get ()
403{
404 command cmd;
405
406 cmd.type = command::get;
407
408 write (sock_fd, &cmd, sizeof (cmd));
409
410 if (read (sock_fd, &id, sizeof (id)) != sizeof (id))
411 rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n");
412
413 if (!id)
414 return false;
415
416 if ((pty = rxvt_recv_fd (sock_fd)) < 0
417 || (tty = rxvt_recv_fd (sock_fd)) < 0)
418 rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n");
419
420 return true;
421}
422
444void 423void
445rxvt_ptytty::set_utf8_mode (bool on) 424rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname)
446{ 425{
447#ifdef IUTF8 426 command cmd;
448 if (pty != -1)
449 {
450 struct termios tio;
451 427
452 if (tcgetattr (pty, &tio) != -1) 428 cmd.type = command::login;
429 cmd.id = id;
430 cmd.cmd_pid = cmd_pid;
431 cmd.login_shell = login_shell;
432 strncpy (cmd.hostname, hostname, sizeof (cmd.hostname));
433
434 write (sock_fd, &cmd, sizeof (cmd));
435}
436
437rxvt_ptytty_proxy::~rxvt_ptytty_proxy ()
438{
439 command cmd;
440
441 cmd.type = command::destroy;
442 cmd.id = id;
443
444 write (sock_fd, &cmd, sizeof (cmd));
445}
446
447static
448void serve ()
449{
450 command cmd;
451 vector<rxvt_ptytty *> ptys;
452
453 while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command))
454 {
455 if (cmd.type == command::get)
456 {
457 // -> id ptyfd ttyfd
458 cmd.id = new rxvt_ptytty_unix;
459
460 if (cmd.id->get ())
453 { 461 {
454 tcflag_t new_cflag = tio.c_iflag; 462 write (sock_fd, &cmd.id, sizeof (cmd.id));
463 ptys.push_back (cmd.id);
455 464
456 if (on) 465 rxvt_send_fd (sock_fd, cmd.id->pty);
457 new_cflag |= IUTF8; 466 rxvt_send_fd (sock_fd, cmd.id->tty);
467 }
458 else 468 else
459 new_cflag &= ~IUTF8;
460
461 if (new_cflag != tio.c_iflag)
462 { 469 {
463 tio.c_iflag = new_cflag; 470 delete cmd.id;
464 tcsetattr (pty, TCSANOW, &tio); 471 cmd.id = 0;
472 write (sock_fd, &cmd.id, sizeof (cmd.id));
465 } 473 }
466 } 474 }
475 else if (cmd.type == command::login)
476 {
477#if UTMP_SUPPORT
478 if (find (ptys.begin (), ptys.end (), cmd.id))
479 {
480 cmd.hostname[sizeof (cmd.hostname) - 1] = 0;
481 cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname);
482 }
483#endif
484 }
485 else if (cmd.type == command::destroy)
486 {
487 rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id);
488
489 if (pty)
490 {
491 delete *pty;
492 ptys.erase (pty);
493 }
494 }
495 else
496 break;
497 }
498
499 // destroy all ptys
500 for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); )
501 delete *i;
502}
503
504void rxvt_ptytty_server ()
505{
506 int sv[2];
507
508 if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv))
509 rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n");
510
511 pid = fork ();
512
513 if (pid < 0)
514 rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n");
515
516 if (pid)
467 } 517 {
518 // client, urxvt
519 sock_fd = sv[0];
520 close (sv[1]);
521 fcntl (sock_fd, F_SETFD, FD_CLOEXEC);
522 }
523 else
524 {
525 // server, pty-helper
526 sock_fd = sv[1];
527
528 for (int fd = 0; fd < 1023; fd++)
529 if (fd != sock_fd)
530 close (fd);
531
532 serve ();
533 _exit (EXIT_SUCCESS);
534 }
535}
536
468#endif 537#endif
538
539// a "factory" *g*
540rxvt_ptytty *
541rxvt_new_ptytty ()
542{
543#if PTYTTY_HELPER
544 if (pid > 0)
545 // use helper process
546 return new rxvt_ptytty_proxy;
547 else
548#endif
549 return new rxvt_ptytty_unix;
469} 550}
470 551
471/*----------------------- end-of-file (C source) -----------------------*/ 552/*----------------------- end-of-file (C source) -----------------------*/
472 553

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