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Comparing rxvt-unicode/src/ptytty.C (file contents):
Revision 1.38 by root, Tue Jan 17 11:53:07 2006 UTC vs.
Revision 1.52 by root, Thu Jan 19 20:30:36 2006 UTC

… …
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# include <cstdlib> 27#include <cstdlib>
28# include <cstring> 28#include <cstring>
29 29
30#ifdef HAVE_SYS_TYPES_H
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#ifdef HAVE_FCNTL_H
37# include <fcntl.h> 33#include <fcntl.h>
38#endif 34
39#ifdef HAVE_SYS_IOCTL_H 35#ifdef HAVE_SYS_IOCTL_H
40# include <sys/ioctl.h> 36# include <sys/ioctl.h>
41#endif 37#endif
42#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) 38#if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H)
43# include <sys/stropts.h> /* for I_PUSH */ 39# include <sys/stropts.h> /* for I_PUSH */
… …
53# include <util.h> 49# include <util.h>
54#endif 50#endif
55 51
56#include <cstdio> 52#include <cstdio>
57#include <grp.h> 53#include <grp.h>
54
55#include "rxvtutil.h"
56#include "fdpass.h"
57#include "ptytty.h"
58 58
59///////////////////////////////////////////////////////////////////////////// 59/////////////////////////////////////////////////////////////////////////////
60 60
61/* ------------------------------------------------------------------------- * 61/* ------------------------------------------------------------------------- *
62 * GET PSEUDO TELETYPE - MASTER AND SLAVE * 62 * GET PSEUDO TELETYPE - MASTER AND SLAVE *
… …
64/* 64/*
65 * Returns pty file descriptor, or -1 on failure 65 * Returns pty file descriptor, or -1 on failure
66 * 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.
67 * 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
68 */ 68 */
69static int 69static inline int
70get_pty (int *fd_tty, char **ttydev) 70get_pty_streams (int *fd_tty, char **ttydev)
71{ 71{
72#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT)
73# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX)
72 int pfd; 74 int pfd;
73 75
76# if defined(PTYS_ARE_GETPT)
77 pfd = getpt();
78# elif defined(PTYS_ARE_POSIX)
79 pfd = posix_openpt (O_RDWR);
80# else
81 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
82# endif
83 if (pfd >= 0)
84 {
85 if (grantpt (pfd) == 0 /* change slave permissions */
86 && unlockpt (pfd) == 0)
87 { /* slave now unlocked */
88 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
89 return pfd;
90 }
91
92 close (pfd);
93 }
94# endif
95#endif
96
97 return -1;
98}
99
100static inline int
101get_pty_openpty (int *fd_tty, char **ttydev)
102{
74#ifdef PTYS_ARE_OPENPTY 103#ifdef PTYS_ARE_OPENPTY
75 char tty_name[sizeof "/dev/pts/????\0"]; 104 int pfd;
76 105 int res;
77 rxvt_privileges(RESTORE); 106 char tty_name[32];
107
78 int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); 108 res = openpty (&pfd, fd_tty, tty_name, NULL, NULL);
79 rxvt_privileges(IGNORE);
80
81 if (res != -1) 109 if (res != -1)
82 { 110 {
83 *ttydev = strdup (tty_name); 111 *ttydev = strdup (tty_name);
84 return pfd; 112 return pfd;
85 } 113 }
86#endif 114#endif
87 115
116 return -1;
117}
118
119static inline int
120get_pty__getpty (int *fd_tty, char **ttydev)
121{
88#ifdef PTYS_ARE__GETPTY 122#ifdef PTYS_ARE__GETPTY
123 int pfd;
124
89 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); 125 *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0);
90 if (*ttydev != NULL) 126 if (*ttydev != NULL)
91 return pfd; 127 return pfd;
92#endif 128#endif
93 129
94#if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) 130 return -1;
95# if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) 131}
96 132
97 { 133static inline int
98# ifdef PTYS_ARE_GETPT 134get_pty_ptc (int *fd_tty, char **ttydev)
99 pfd = getpt(); 135{
100# else
101# ifdef PTYS_ARE_POSIX
102 pfd = posix_openpt (O_RDWR);
103# else
104 pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0);
105# endif
106# endif
107
108 if (pfd >= 0)
109 {
110 if (grantpt (pfd) == 0 /* change slave permissions */
111 && unlockpt (pfd) == 0)
112 { /* slave now unlocked */
113 *ttydev = strdup (ptsname (pfd)); /* get slave's name */
114 return pfd;
115 }
116 close (pfd);
117 }
118 }
119# endif
120#endif
121
122#ifdef PTYS_ARE_PTC 136#ifdef PTYS_ARE_PTC
137 int pfd;
138
123 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) 139 if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0)
124 { 140 {
125 *ttydev = strdup (ttyname (pfd)); 141 *ttydev = strdup (ttyname (pfd));
126 return pfd; 142 return pfd;
127 } 143 }
128#endif 144#endif
129 145
146 return -1;
147}
148
149static inline int
150get_pty_clone (int *fd_tty, char **ttydev)
151{
130#ifdef PTYS_ARE_CLONE 152#ifdef PTYS_ARE_CLONE
153 int pfd;
154
131 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) 155 if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0)
132 { 156 {
133 *ttydev = strdup (ptsname (pfd)); 157 *ttydev = strdup (ptsname (pfd));
134 return pfd; 158 return pfd;
135 } 159 }
136#endif 160#endif
137 161
162 return -1;
163}
164
165static inline int
166get_pty_numeric (int *fd_tty, char **ttydev)
167{
138#ifdef PTYS_ARE_NUMERIC 168#ifdef PTYS_ARE_NUMERIC
139 { 169 int pfd;
140 int idx; 170 int idx;
141 char *c1, *c2; 171 char *c1, *c2;
142 char pty_name[] = "/dev/ptyp???"; 172 char pty_name[] = "/dev/ptyp???";
143 char tty_name[] = "/dev/ttyp???"; 173 char tty_name[] = "/dev/ttyp???";
144 174
145 c1 = &(pty_name[sizeof (pty_name) - 4]); 175 c1 = &(pty_name[sizeof (pty_name) - 4]);
146 c2 = &(tty_name[sizeof (tty_name) - 4]); 176 c2 = &(tty_name[sizeof (tty_name) - 4]);
177
147 for (idx = 0; idx < 256; idx++) 178 for (idx = 0; idx < 256; idx++)
148 { 179 {
149 sprintf (c1, "%d", idx); 180 sprintf (c1, "%d", idx);
150 sprintf (c2, "%d", idx); 181 sprintf (c2, "%d", idx);
182
151 if (access (tty_name, F_OK) < 0) 183 if (access (tty_name, F_OK) < 0)
152 { 184 {
153 idx = 256; 185 idx = 256;
154 break; 186 break;
155 } 187 }
156 188
157 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 189 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
158 { 190 {
159 if (access (tty_name, R_OK | W_OK) == 0) 191 if (access (tty_name, R_OK | W_OK) == 0)
160 { 192 {
161 *ttydev = strdup (tty_name); 193 *ttydev = strdup (tty_name);
162 return pfd; 194 return pfd;
163 } 195 }
164 196
165 close (pfd); 197 close (pfd);
166 } 198 }
167 } 199 }
168 }
169#endif 200#endif
170 201
202 return -1;
203}
204
205static inline int
206get_pty_searched (int *fd_tty, char **ttydev)
207{
171#ifdef PTYS_ARE_SEARCHED 208#ifdef PTYS_ARE_SEARCHED
172 {
173 const char *c1, *c2;
174 char pty_name[] = "/dev/pty??";
175 char tty_name[] = "/dev/tty??";
176
177# ifndef PTYCHAR1 209# ifndef PTYCHAR1
178# define PTYCHAR1 "pqrstuvwxyz" 210# define PTYCHAR1 "pqrstuvwxyz"
179# endif 211# endif
180# ifndef PTYCHAR2 212# ifndef PTYCHAR2
181# define PTYCHAR2 "0123456789abcdef" 213# define PTYCHAR2 "0123456789abcdef"
182# endif 214# endif
215 int pfd;
216 const char *c1, *c2;
217 char pty_name[] = "/dev/pty??";
218 char tty_name[] = "/dev/tty??";
183 219
184 for (c1 = PTYCHAR1; *c1; c1++) 220 for (c1 = PTYCHAR1; *c1; c1++)
185 { 221 {
186 pty_name[ (sizeof (pty_name) - 3)] = 222 pty_name[ (sizeof (pty_name) - 3)] =
187 tty_name[ (sizeof (pty_name) - 3)] = *c1; 223 tty_name[ (sizeof (pty_name) - 3)] = *c1;
224
188 for (c2 = PTYCHAR2; *c2; c2++) 225 for (c2 = PTYCHAR2; *c2; c2++)
189 { 226 {
190 pty_name[ (sizeof (pty_name) - 2)] = 227 pty_name[ (sizeof (pty_name) - 2)] =
191 tty_name[ (sizeof (pty_name) - 2)] = *c2; 228 tty_name[ (sizeof (pty_name) - 2)] = *c2;
229
192 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) 230 if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0)
193 { 231 {
194 if (access (tty_name, R_OK | W_OK) == 0) 232 if (access (tty_name, R_OK | W_OK) == 0)
195 { 233 {
196 *ttydev = strdup (tty_name); 234 *ttydev = strdup (tty_name);
197 return pfd; 235 return pfd;
198 } 236 }
199 237
200 close (pfd); 238 close (pfd);
201 } 239 }
202 } 240 }
203 } 241 }
204 }
205#endif 242#endif
243
244 return -1;
245}
246
247static int
248get_pty (int *fd_tty, char **ttydev)
249{
250 int pfd;
251
252 if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1
253 || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1
254 || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1
255 || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1
256 || (pfd = get_pty_clone (fd_tty, ttydev)) != -1
257 || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1
258 || (pfd = get_pty_searched (fd_tty, ttydev)) != -1)
259 return pfd;
206 260
207 return -1; 261 return -1;
208} 262}
209 263
210/*----------------------------------------------------------------------*/ 264/*----------------------------------------------------------------------*/
… …
222 * Make our tty a controlling tty so that /dev/tty points to us 276 * Make our tty a controlling tty so that /dev/tty points to us
223 */ 277 */
224static int 278static int
225control_tty (int fd_tty) 279control_tty (int fd_tty)
226{ 280{
227 int fd;
228
229 /* ---------------------------------------- */
230 setsid (); 281 setsid ();
231 282
232 /* ---------------------------------------- */
233# if defined(PTYS_ARE_PTMX) && defined(I_PUSH) 283#if defined(PTYS_ARE_PTMX) && defined(I_PUSH)
234 /* 284 /*
235 * Push STREAMS modules: 285 * Push STREAMS modules:
236 * ptem: pseudo-terminal hardware emulation module. 286 * ptem: pseudo-terminal hardware emulation module.
237 * ldterm: standard terminal line discipline. 287 * ldterm: standard terminal line discipline.
238 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. 288 * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module.
… …
246 * documentation is really unclear about whether it is any close () on 296 * documentation is really unclear about whether it is any close () on
247 * the master side or the last close () - i.e. a proper STREAMS dismantling 297 * the master side or the last close () - i.e. a proper STREAMS dismantling
248 * close () - on the master side which causes a hang up to be sent 298 * close () - on the master side which causes a hang up to be sent
249 * through - Geoff Wing 299 * through - Geoff Wing
250 */ 300 */
251# ifdef HAVE_ISASTREAM 301# ifdef HAVE_ISASTREAM
252 if (isastream (fd_tty) == 1) 302 if (isastream (fd_tty) == 1)
253# endif 303# endif
254 { 304 {
255 ioctl (fd_tty, I_PUSH, "ptem"); 305 ioctl (fd_tty, I_PUSH, "ptem");
256 ioctl (fd_tty, I_PUSH, "ldterm"); 306 ioctl (fd_tty, I_PUSH, "ldterm");
257 ioctl (fd_tty, I_PUSH, "ttcompat"); 307 ioctl (fd_tty, I_PUSH, "ttcompat");
258 } 308 }
259# endif 309#endif
260 /* ---------------------------------------- */ 310
261 fd = ioctl (fd_tty, TIOCSCTTY, NULL); 311 ioctl (fd_tty, TIOCSCTTY, NULL);
262 /* ---------------------------------------- */ 312
263 fd = open ("/dev/tty", O_WRONLY); 313 int fd = open ("/dev/tty", O_WRONLY);
264 if (fd < 0) 314 if (fd < 0)
265 return -1; /* fatal */ 315 return -1; /* fatal */
316
266 close (fd); 317 close (fd);
267 /* ---------------------------------------- */
268 318
269 return 0; 319 return 0;
270} 320}
271 321
272void 322void
… …
310 } 360 }
311 } 361 }
312#endif 362#endif
313} 363}
314 364
315/////////////////////////////////////////////////////////////////////////////
316
317#ifndef NO_SETOWNER_TTYDEV
318static struct ttyconf { 365static struct ttyconf {
319 gid_t gid; 366 gid_t gid;
320 mode_t mode; 367 mode_t mode;
321 368
322 ttyconf () 369 ttyconf ()
… …
331 } 378 }
332 else 379 else
333#endif /* TTY_GID_SUPPORT */ 380#endif /* TTY_GID_SUPPORT */
334 { 381 {
335 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; 382 mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH;
336 gid = getgid (); 383 gid = 0;
337 } 384 }
338 } 385 }
339} ttyconf; 386} ttyconf;
340 387
341/////////////////////////////////////////////////////////////////////////////
342
343void
344rxvt_ptytty_unix::privileges (rxvt_privaction action)
345{
346 if (!name || !*name)
347 return;
348
349 rxvt_privileges (RESTORE);
350
351 if (action == SAVE)
352 {
353# ifndef RESET_TTY_TO_COMMON_DEFAULTS
354 /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */
355 if (lstat (name, &savestat) < 0) /* you lose out */
356 ;
357 else
358# endif
359 {
360 saved = true;
361 chown (name, getuid (), ttyconf.gid); /* fail silently */
362 chmod (name, ttyconf.mode);
363# ifdef HAVE_REVOKE
364 revoke (name);
365# endif
366 }
367 }
368 else
369 { /* action == RESTORE */
370# ifndef RESET_TTY_TO_COMMON_DEFAULTS
371 if (saved)
372 {
373 chmod (name, savestat.st_mode);
374 chown (name, savestat.st_uid, savestat.st_gid);
375 }
376# else
377 chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH));
378 chown (name, 0, 0);
379# endif
380
381 }
382
383 rxvt_privileges (IGNORE);
384}
385#endif
386
387rxvt_ptytty_unix::rxvt_ptytty_unix () 388rxvt_ptytty_unix::rxvt_ptytty_unix ()
388{ 389{
389 pty = tty = -1;
390 name = 0; 390 name = 0;
391#ifndef NO_SETOWNER_TTYDEV
392 saved = false;
393#endif
394#if UTMP_SUPPORT 391#if UTMP_SUPPORT
395 cmd_pid = 0; 392 cmd_pid = 0;
396#endif 393#endif
397} 394}
398 395
399rxvt_ptytty_unix::~rxvt_ptytty_unix () 396rxvt_ptytty_unix::~rxvt_ptytty_unix ()
400{ 397{
398#if UTMP_SUPPORT
401 logout (); 399 logout ();
400#endif
402 put (); 401 put ();
403} 402}
404 403
405void 404void
406rxvt_ptytty_unix::put () 405rxvt_ptytty_unix::put ()
407{ 406{
408#ifndef NO_SETOWNER_TTYDEV 407 chmod (name, RESTORE_TTY_MODE);
409 privileges (RESTORE); 408 chown (name, 0, ttyconf.gid);
410#endif
411 409
412 if (pty >= 0) close (pty);
413 close_tty (); 410 close_tty ();
411
412 if (pty >= 0)
413 close (pty);
414
414 free (name); 415 free (name);
415 416
416 pty = tty = -1; 417 pty = tty = -1;
417 name = 0; 418 name = 0;
418} 419}
… …
428 429
429 /* get slave (tty) */ 430 /* get slave (tty) */
430 if (tty < 0) 431 if (tty < 0)
431 { 432 {
432#ifndef NO_SETOWNER_TTYDEV 433#ifndef NO_SETOWNER_TTYDEV
433 privileges (SAVE); 434 chown (name, getuid (), ttyconf.gid); /* fail silently */
435 chmod (name, ttyconf.mode);
436# ifdef HAVE_REVOKE
437 revoke (name);
438# endif
434#endif 439#endif
435 440
436 if ((tty = get_tty (name)) < 0) 441 if ((tty = get_tty (name)) < 0)
437 { 442 {
438 put (); 443 put ();
… …
441 } 446 }
442 447
443 return true; 448 return true;
444} 449}
445 450
451#if PTYTTY_HELPER
452
453static int sock_fd;
454static int pid;
455
456struct command
457{
458 enum { get, login, destroy } type;
459
460 rxvt_ptytty *id;
461
462 bool login_shell;
463 int cmd_pid;
464 char hostname[512]; // arbitrary, but should be plenty
465};
466
467struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty
468{
469 rxvt_ptytty *id;
470
471 ~rxvt_ptytty_proxy ();
472
473 bool get ();
474 void login (int cmd_pid, bool login_shell, const char *hostname);
475};
476
477bool
478rxvt_ptytty_proxy::get ()
479{
480 command cmd;
481
482 cmd.type = command::get;
483
484 write (sock_fd, &cmd, sizeof (cmd));
485
486 if (read (sock_fd, &id, sizeof (id)) != sizeof (id))
487 rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n");
488
489 if (!id)
490 return false;
491
492 if ((pty = rxvt_recv_fd (sock_fd)) < 0
493 || (tty = rxvt_recv_fd (sock_fd)) < 0)
494 rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n");
495
496 return true;
497}
498
499void
500rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname)
501{
502 command cmd;
503
504 cmd.type = command::login;
505 cmd.id = id;
506 cmd.cmd_pid = cmd_pid;
507 cmd.login_shell = login_shell;
508 strncpy (cmd.hostname, hostname, sizeof (cmd.hostname));
509
510 write (sock_fd, &cmd, sizeof (cmd));
511}
512
513rxvt_ptytty_proxy::~rxvt_ptytty_proxy ()
514{
515 command cmd;
516
517 cmd.type = command::destroy;
518 cmd.id = id;
519
520 write (sock_fd, &cmd, sizeof (cmd));
521}
522
523static
524void serve ()
525{
526 command cmd;
527 vector<rxvt_ptytty *> ptys;
528
529 while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command))
530 {
531 if (cmd.type == command::get)
532 {
533 // -> id ptyfd ttyfd
534 cmd.id = new rxvt_ptytty_unix;
535
536 if (cmd.id->get ())
537 {
538 write (sock_fd, &cmd.id, sizeof (cmd.id));
539 ptys.push_back (cmd.id);
540
541 rxvt_send_fd (sock_fd, cmd.id->pty);
542 rxvt_send_fd (sock_fd, cmd.id->tty);
543 }
544 else
545 {
546 delete cmd.id;
547 cmd.id = 0;
548 write (sock_fd, &cmd.id, sizeof (cmd.id));
549 }
550 }
551 else if (cmd.type == command::login)
552 {
553#if UTMP_SUPPORT
554 if (find (ptys.begin (), ptys.end (), cmd.id))
555 {
556 cmd.hostname[sizeof (cmd.hostname) - 1] = 0;
557 cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname);
558 }
559#endif
560 }
561 else if (cmd.type == command::destroy)
562 {
563 rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id);
564
565 if (pty)
566 {
567 delete *pty;
568 ptys.erase (pty);
569 }
570 }
571 else
572 break;
573 }
574
575 // destroy all ptys
576 for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); )
577 delete *i;
578}
579
580void rxvt_ptytty_server ()
581{
582 int sv[2];
583
584 if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv))
585 rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n");
586
587 pid = fork ();
588
589 if (pid < 0)
590 rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n");
591
592 if (pid)
593 {
594 // client, urxvt
595 sock_fd = sv[0];
596 close (sv[1]);
597 fcntl (sock_fd, F_SETFD, FD_CLOEXEC);
598 }
599 else
600 {
601 // server, pty-helper
602 sock_fd = sv[1];
603
604 for (int fd = 0; fd < 1023; fd++)
605 if (fd != sock_fd)
606 close (fd);
607
608 serve ();
609 _exit (EXIT_SUCCESS);
610 }
611}
612
613#endif
614
615// a "factory" *g*
616rxvt_ptytty *
617rxvt_new_ptytty ()
618{
619#if PTYTTY_HELPER
620 if (pid > 0)
621 // use helper process
622 return new rxvt_ptytty_proxy;
623 else
624#endif
625 return new rxvt_ptytty_unix;
626}
627
446/*----------------------- end-of-file (C source) -----------------------*/ 628/*----------------------- end-of-file (C source) -----------------------*/
447 629

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