/[rdesktop]/jpeg/rdesktop/trunk/rdesktop.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /jpeg/rdesktop/trunk/rdesktop.c

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Revision 871 - (show annotations)
Wed Mar 30 19:51:41 2005 UTC (19 years, 1 month ago) by stargo
Original Path: sourceforge.net/trunk/rdesktop/rdesktop.c
File MIME type: text/plain
File size: 27182 byte(s)
allow windowid to be hexadecimal, which is what krdc actually uses...

1 /* -*- c-basic-offset: 8 -*-
2 rdesktop: A Remote Desktop Protocol client.
3 Entrypoint and utility functions
4 Copyright (C) Matthew Chapman 1999-2005
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include <stdarg.h> /* va_list va_start va_end */
22 #include <unistd.h> /* read close getuid getgid getpid getppid gethostname */
23 #include <fcntl.h> /* open */
24 #include <pwd.h> /* getpwuid */
25 #include <termios.h> /* tcgetattr tcsetattr */
26 #include <sys/stat.h> /* stat */
27 #include <sys/time.h> /* gettimeofday */
28 #include <sys/times.h> /* times */
29 #include <ctype.h> /* toupper */
30 #include <errno.h>
31 #include "rdesktop.h"
32
33 #ifdef HAVE_ICONV
34 #ifdef HAVE_LOCALE_H
35 #include <locale.h>
36 #endif
37 #ifdef HAVE_LANGINFO_H
38 #include <langinfo.h>
39 #endif
40 #endif
41
42 #ifdef EGD_SOCKET
43 #include <sys/socket.h> /* socket connect */
44 #include <sys/un.h> /* sockaddr_un */
45 #endif
46
47 #include <openssl/md5.h>
48
49 char g_title[64] = "";
50 char g_username[64];
51 char g_hostname[16];
52 char keymapname[16];
53 int g_keylayout = 0x409; /* Defaults to US keyboard layout */
54
55 int g_width = 800; /* width is special: If 0, the
56 geometry will be fetched from
57 _NET_WORKAREA. If negative,
58 absolute value specifies the
59 percent of the whole screen. */
60 int g_height = 600;
61 int g_xpos = 0;
62 int g_ypos = 0;
63 int g_pos = 0; /* 0 position unspecified,
64 1 specified,
65 2 xpos neg,
66 4 ypos neg */
67 extern int g_tcp_port_rdp;
68 int g_server_bpp = 8;
69 int g_win_button_size = 0; /* If zero, disable single app mode */
70 BOOL g_bitmap_compression = True;
71 BOOL g_sendmotion = True;
72 BOOL g_bitmap_cache = True;
73 BOOL g_bitmap_cache_persist_enable = False;
74 BOOL g_bitmap_cache_precache = True;
75 BOOL g_encryption = True;
76 BOOL packet_encryption = True;
77 BOOL g_desktop_save = True; /* desktop save order */
78 BOOL g_polygon_ellipse_orders = True; /* polygon / ellipse orders */
79 BOOL g_fullscreen = False;
80 BOOL g_grab_keyboard = True;
81 BOOL g_hide_decorations = False;
82 BOOL g_use_rdp5 = True;
83 BOOL g_console_session = False;
84 BOOL g_numlock_sync = False;
85 BOOL g_owncolmap = False;
86 BOOL g_ownbackstore = True; /* We can't rely on external BackingStore */
87 uint32 g_embed_wnd;
88 uint32 g_rdp5_performanceflags =
89 RDP5_NO_WALLPAPER | RDP5_NO_FULLWINDOWDRAG | RDP5_NO_MENUANIMATIONS;
90
91 #ifdef WITH_RDPSND
92 BOOL g_rdpsnd = False;
93 #endif
94
95 #ifdef HAVE_ICONV
96 char g_codepage[16] = "";
97 #endif
98
99 extern RDPDR_DEVICE g_rdpdr_device[];
100 extern uint32 g_num_devices;
101 extern char *g_rdpdr_clientname;
102
103 #ifdef RDP2VNC
104 extern int rfb_port;
105 extern int defer_time;
106 void
107 rdp2vnc_connect(char *server, uint32 flags, char *domain, char *password,
108 char *shell, char *directory);
109 #endif
110 /* Display usage information */
111 static void
112 usage(char *program)
113 {
114 fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
115 fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2005 Matt Chapman.\n");
116 fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");
117
118 fprintf(stderr, "Usage: %s [options] server[:port]\n", program);
119 #ifdef RDP2VNC
120 fprintf(stderr, " -V: vnc port\n");
121 fprintf(stderr, " -Q: defer time (ms)\n");
122 #endif
123 fprintf(stderr, " -u: user name\n");
124 fprintf(stderr, " -d: domain\n");
125 fprintf(stderr, " -s: shell\n");
126 fprintf(stderr, " -c: working directory\n");
127 fprintf(stderr, " -p: password (- to prompt)\n");
128 fprintf(stderr, " -n: client hostname\n");
129 fprintf(stderr, " -k: keyboard layout on server (en-us, de, sv, etc.)\n");
130 fprintf(stderr, " -g: desktop geometry (WxH)\n");
131 fprintf(stderr, " -f: full-screen mode\n");
132 fprintf(stderr, " -b: force bitmap updates\n");
133 #ifdef HAVE_ICONV
134 fprintf(stderr, " -L: local codepage\n");
135 #endif
136 fprintf(stderr, " -B: use BackingStore of X-server (if available)\n");
137 fprintf(stderr, " -e: disable encryption (French TS)\n");
138 fprintf(stderr, " -E: disable encryption from client to server\n");
139 fprintf(stderr, " -m: do not send motion events\n");
140 fprintf(stderr, " -C: use private colour map\n");
141 fprintf(stderr, " -D: hide window manager decorations\n");
142 fprintf(stderr, " -K: keep window manager key bindings\n");
143 fprintf(stderr, " -S: caption button size (single application mode)\n");
144 fprintf(stderr, " -T: window title\n");
145 fprintf(stderr, " -N: enable numlock syncronization\n");
146 fprintf(stderr, " -X: embed into another window with a given id.\n");
147 fprintf(stderr, " -a: connection colour depth\n");
148 fprintf(stderr, " -z: enable rdp compression\n");
149 fprintf(stderr, " -x: RDP5 experience (m[odem 28.8], b[roadband], l[an] or hex nr.)\n");
150 fprintf(stderr, " -P: use persistent bitmap caching\n");
151 fprintf(stderr, " -r: enable specified device redirection (this flag can be repeated)\n");
152 fprintf(stderr,
153 " '-r comport:COM1=/dev/ttyS0': enable serial redirection of /dev/ttyS0 to COM1\n");
154 fprintf(stderr, " or COM1=/dev/ttyS0,COM2=/dev/ttyS1\n");
155 fprintf(stderr,
156 " '-r disk:floppy=/mnt/floppy': enable redirection of /mnt/floppy to 'floppy' share\n");
157 fprintf(stderr, " or 'floppy=/mnt/floppy,cdrom=/mnt/cdrom'\n");
158 fprintf(stderr, " '-r clientname=<client name>': Set the client name displayed\n");
159 fprintf(stderr, " for redirected disks\n");
160 fprintf(stderr,
161 " '-r lptport:LPT1=/dev/lp0': enable parallel redirection of /dev/lp0 to LPT1\n");
162 fprintf(stderr, " or LPT1=/dev/lp0,LPT2=/dev/lp1\n");
163 fprintf(stderr, " '-r printer:mydeskjet': enable printer redirection\n");
164 fprintf(stderr,
165 " or mydeskjet=\"HP LaserJet IIIP\" to enter server driver as well\n");
166 fprintf(stderr, " '-r sound:[local|off|remote]': enable sound redirection\n");
167 fprintf(stderr, " remote would leave sound on server\n");
168 fprintf(stderr, " -0: attach to console\n");
169 fprintf(stderr, " -4: use RDP version 4\n");
170 fprintf(stderr, " -5: use RDP version 5 (default)\n");
171 }
172
173 void
174 print_disconnect_reason(uint16 reason)
175 {
176 char *text;
177
178 switch (reason)
179 {
180 case exDiscReasonNoInfo:
181 text = "No information available";
182 break;
183
184 case exDiscReasonAPIInitiatedDisconnect:
185 text = "Server initiated disconnect";
186 break;
187
188 case exDiscReasonAPIInitiatedLogoff:
189 text = "Server initiated logoff";
190 break;
191
192 case exDiscReasonServerIdleTimeout:
193 text = "Server idle timeout reached";
194 break;
195
196 case exDiscReasonServerLogonTimeout:
197 text = "Server logon timeout reached";
198 break;
199
200 case exDiscReasonReplacedByOtherConnection:
201 text = "The session was replaced";
202 break;
203
204 case exDiscReasonOutOfMemory:
205 text = "The server is out of memory";
206 break;
207
208 case exDiscReasonServerDeniedConnection:
209 text = "The server denied the connection";
210 break;
211
212 case exDiscReasonServerDeniedConnectionFips:
213 text = "The server denied the connection for security reason";
214 break;
215
216 case exDiscReasonLicenseInternal:
217 text = "Internal licensing error";
218 break;
219
220 case exDiscReasonLicenseNoLicenseServer:
221 text = "No license server available";
222 break;
223
224 case exDiscReasonLicenseNoLicense:
225 text = "No valid license available";
226 break;
227
228 case exDiscReasonLicenseErrClientMsg:
229 text = "Invalid licensing message";
230 break;
231
232 case exDiscReasonLicenseHwidDoesntMatchLicense:
233 text = "Hardware id doesn't match software license";
234 break;
235
236 case exDiscReasonLicenseErrClientLicense:
237 text = "Client license error";
238 break;
239
240 case exDiscReasonLicenseCantFinishProtocol:
241 text = "Network error during licensing protocol";
242 break;
243
244 case exDiscReasonLicenseClientEndedProtocol:
245 text = "Licensing protocol was not completed";
246 break;
247
248 case exDiscReasonLicenseErrClientEncryption:
249 text = "Incorrect client license enryption";
250 break;
251
252 case exDiscReasonLicenseCantUpgradeLicense:
253 text = "Can't upgrade license";
254 break;
255
256 case exDiscReasonLicenseNoRemoteConnections:
257 text = "The server is not licensed to accept remote connections";
258 break;
259
260 default:
261 if (reason > 0x1000 && reason < 0x7fff)
262 {
263 text = "Internal protocol error";
264 }
265 else
266 {
267 text = "Unknown reason";
268 }
269 }
270 fprintf(stderr, "disconnect: %s.\n", text);
271 }
272
273 static BOOL
274 read_password(char *password, int size)
275 {
276 struct termios tios;
277 BOOL ret = False;
278 int istty = 0;
279 char *p;
280
281 if (tcgetattr(STDIN_FILENO, &tios) == 0)
282 {
283 fprintf(stderr, "Password: ");
284 tios.c_lflag &= ~ECHO;
285 tcsetattr(STDIN_FILENO, TCSANOW, &tios);
286 istty = 1;
287 }
288
289 if (fgets(password, size, stdin) != NULL)
290 {
291 ret = True;
292
293 /* strip final newline */
294 p = strchr(password, '\n');
295 if (p != NULL)
296 *p = 0;
297 }
298
299 if (istty)
300 {
301 tios.c_lflag |= ECHO;
302 tcsetattr(STDIN_FILENO, TCSANOW, &tios);
303 fprintf(stderr, "\n");
304 }
305
306 return ret;
307 }
308
309 static void
310 parse_server_and_port(char *server)
311 {
312 char *p;
313 #ifdef IPv6
314 int addr_colons;
315 #endif
316
317 #ifdef IPv6
318 p = server;
319 addr_colons = 0;
320 while (*p)
321 if (*p++ == ':')
322 addr_colons++;
323 if (addr_colons >= 2)
324 {
325 /* numeric IPv6 style address format - [1:2:3::4]:port */
326 p = strchr(server, ']');
327 if (*server == '[' && p != NULL)
328 {
329 if (*(p + 1) == ':' && *(p + 2) != '\0')
330 g_tcp_port_rdp = strtol(p + 2, NULL, 10);
331 /* remove the port number and brackets from the address */
332 *p = '\0';
333 strncpy(server, server + 1, strlen(server));
334 }
335 }
336 else
337 {
338 /* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */
339 p = strchr(server, ':');
340 if (p != NULL)
341 {
342 g_tcp_port_rdp = strtol(p + 1, NULL, 10);
343 *p = 0;
344 }
345 }
346 #else /* no IPv6 support */
347 p = strchr(server, ':');
348 if (p != NULL)
349 {
350 g_tcp_port_rdp = strtol(p + 1, NULL, 10);
351 *p = 0;
352 }
353 #endif /* IPv6 */
354
355 }
356
357 /* Client program */
358 int
359 main(int argc, char *argv[])
360 {
361 char server[64];
362 char fullhostname[64];
363 char domain[16];
364 char password[64];
365 char shell[128];
366 char directory[32];
367 BOOL prompt_password, deactivated;
368 struct passwd *pw;
369 uint32 flags, ext_disc_reason = 0;
370 char *p;
371 int c;
372
373 int username_option = 0;
374
375 flags = RDP_LOGON_NORMAL;
376 prompt_password = False;
377 domain[0] = password[0] = shell[0] = directory[0] = 0;
378 strcpy(keymapname, "en-us");
379 g_embed_wnd = 0;
380
381 g_num_devices = 0;
382
383 #ifdef RDP2VNC
384 #define VNCOPT "V:Q:"
385 #else
386 #define VNCOPT
387 #endif
388
389 while ((c = getopt(argc, argv,
390 VNCOPT "u:L:d:s:c:p:n:k:g:fbBeEmzCDKS:T:NX:a:x:Pr:045h?")) != -1)
391 {
392 switch (c)
393 {
394 #ifdef RDP2VNC
395 case 'V':
396 rfb_port = strtol(optarg, NULL, 10);
397 if (rfb_port < 100)
398 rfb_port += 5900;
399 break;
400
401 case 'Q':
402 defer_time = strtol(optarg, NULL, 10);
403 if (defer_time < 0)
404 defer_time = 0;
405 break;
406 #endif
407
408 case 'u':
409 STRNCPY(g_username, optarg, sizeof(g_username));
410 username_option = 1;
411 break;
412
413 case 'L':
414 #ifdef HAVE_ICONV
415 STRNCPY(g_codepage, optarg, sizeof(g_codepage));
416 #else
417 error("iconv support not available\n");
418 #endif
419 break;
420
421 case 'd':
422 STRNCPY(domain, optarg, sizeof(domain));
423 break;
424
425 case 's':
426 STRNCPY(shell, optarg, sizeof(shell));
427 break;
428
429 case 'c':
430 STRNCPY(directory, optarg, sizeof(directory));
431 break;
432
433 case 'p':
434 if ((optarg[0] == '-') && (optarg[1] == 0))
435 {
436 prompt_password = True;
437 break;
438 }
439
440 STRNCPY(password, optarg, sizeof(password));
441 flags |= RDP_LOGON_AUTO;
442
443 /* try to overwrite argument so it won't appear in ps */
444 p = optarg;
445 while (*p)
446 *(p++) = 'X';
447 break;
448
449 case 'n':
450 STRNCPY(g_hostname, optarg, sizeof(g_hostname));
451 break;
452
453 case 'k':
454 STRNCPY(keymapname, optarg, sizeof(keymapname));
455 break;
456
457 case 'g':
458 g_fullscreen = False;
459 if (!strcmp(optarg, "workarea"))
460 {
461 g_width = g_height = 0;
462 break;
463 }
464
465 g_width = strtol(optarg, &p, 10);
466 if (g_width <= 0)
467 {
468 error("invalid geometry\n");
469 return 1;
470 }
471
472 if (*p == 'x')
473 g_height = strtol(p + 1, &p, 10);
474
475 if (g_height <= 0)
476 {
477 error("invalid geometry\n");
478 return 1;
479 }
480
481 if (*p == '%')
482 {
483 g_width = -g_width;
484 p++;
485 }
486
487 if (*p == '+' || *p == '-')
488 {
489 g_pos |= (*p == '-') ? 2 : 1;
490 g_xpos = strtol(p, &p, 10);
491
492 }
493 if (*p == '+' || *p == '-')
494 {
495 g_pos |= (*p == '-') ? 4 : 1;
496 g_ypos = strtol(p, NULL, 10);
497 }
498
499 break;
500
501 case 'f':
502 g_fullscreen = True;
503 break;
504
505 case 'b':
506 g_bitmap_cache = False;
507 break;
508
509 case 'B':
510 g_ownbackstore = False;
511 break;
512
513 case 'e':
514 g_encryption = False;
515 break;
516 case 'E':
517 packet_encryption = False;
518 break;
519 case 'm':
520 g_sendmotion = False;
521 break;
522
523 case 'C':
524 g_owncolmap = True;
525 break;
526
527 case 'D':
528 g_hide_decorations = True;
529 break;
530
531 case 'K':
532 g_grab_keyboard = False;
533 break;
534
535 case 'S':
536 if (!strcmp(optarg, "standard"))
537 {
538 g_win_button_size = 18;
539 break;
540 }
541
542 g_win_button_size = strtol(optarg, &p, 10);
543
544 if (*p)
545 {
546 error("invalid button size\n");
547 return 1;
548 }
549
550 break;
551
552 case 'T':
553 STRNCPY(g_title, optarg, sizeof(g_title));
554 break;
555
556 case 'N':
557 g_numlock_sync = True;
558 break;
559
560 case 'X':
561 g_embed_wnd = strtol(optarg, NULL, 0);
562 break;
563
564 case 'a':
565 g_server_bpp = strtol(optarg, NULL, 10);
566 if (g_server_bpp != 8 && g_server_bpp != 16 && g_server_bpp != 15
567 && g_server_bpp != 24)
568 {
569 error("invalid server bpp\n");
570 return 1;
571 }
572 break;
573
574 case 'z':
575 DEBUG(("rdp compression enabled\n"));
576 flags |= RDP_COMPRESSION;
577 break;
578
579 case 'x':
580 if (strncmp("modem", optarg, 1) == 0)
581 {
582 g_rdp5_performanceflags =
583 RDP5_NO_WALLPAPER | RDP5_NO_FULLWINDOWDRAG |
584 RDP5_NO_MENUANIMATIONS | RDP5_NO_THEMING;
585 }
586 else if (strncmp("broadband", optarg, 1) == 0)
587 {
588 g_rdp5_performanceflags = RDP5_NO_WALLPAPER;
589 }
590 else if (strncmp("lan", optarg, 1) == 0)
591 {
592 g_rdp5_performanceflags = RDP5_DISABLE_NOTHING;
593 }
594 else
595 {
596 g_rdp5_performanceflags = strtol(optarg, NULL, 16);
597 }
598 break;
599
600 case 'P':
601 g_bitmap_cache_persist_enable = True;
602 break;
603
604 case 'r':
605
606 if (strncmp("sound", optarg, 5) == 0)
607 {
608 optarg += 5;
609
610 if (*optarg == ':')
611 {
612 *optarg++;
613 while ((p = next_arg(optarg, ',')))
614 {
615 if (strncmp("remote", optarg, 6) == 0)
616 flags |= RDP_LOGON_LEAVE_AUDIO;
617
618 if (strncmp("local", optarg, 5) == 0)
619 #ifdef WITH_RDPSND
620 g_rdpsnd = True;
621 #else
622 warning("Not compiled with sound support\n");
623 #endif
624
625 if (strncmp("off", optarg, 3) == 0)
626 #ifdef WITH_RDPSND
627 g_rdpsnd = False;
628 #else
629 warning("Not compiled with sound support\n");
630 #endif
631
632 optarg = p;
633 }
634 }
635 else
636 {
637 #ifdef WITH_RDPSND
638 g_rdpsnd = True;
639 #else
640 warning("Not compiled with sound support\n");
641 #endif
642 }
643 }
644 else if (strncmp("disk", optarg, 4) == 0)
645 {
646 /* -r disk:h:=/mnt/floppy */
647 disk_enum_devices(&g_num_devices, optarg + 4);
648 }
649 else if (strncmp("comport", optarg, 7) == 0)
650 {
651 serial_enum_devices(&g_num_devices, optarg + 7);
652 }
653 else if (strncmp("lptport", optarg, 7) == 0)
654 {
655 parallel_enum_devices(&g_num_devices, optarg + 7);
656 }
657 else if (strncmp("printer", optarg, 7) == 0)
658 {
659 printer_enum_devices(&g_num_devices, optarg + 7);
660 }
661 else if (strncmp("clientname", optarg, 7) == 0)
662 {
663 g_rdpdr_clientname = xmalloc(strlen(optarg + 11) + 1);
664 strcpy(g_rdpdr_clientname, optarg + 11);
665 }
666 else
667 {
668 warning("Unknown -r argument\n\n\tPossible arguments are: comport, disk, lptport, printer, sound\n");
669 }
670 break;
671
672 case '0':
673 g_console_session = True;
674 break;
675
676 case '4':
677 g_use_rdp5 = False;
678 break;
679
680 case '5':
681 g_use_rdp5 = True;
682 break;
683
684 case 'h':
685 case '?':
686 default:
687 usage(argv[0]);
688 return 1;
689 }
690 }
691
692 if (argc - optind != 1)
693 {
694 usage(argv[0]);
695 return 1;
696 }
697
698 STRNCPY(server, argv[optind], sizeof(server));
699 parse_server_and_port(server);
700
701 if (!username_option)
702 {
703 pw = getpwuid(getuid());
704 if ((pw == NULL) || (pw->pw_name == NULL))
705 {
706 error("could not determine username, use -u\n");
707 return 1;
708 }
709
710 STRNCPY(g_username, pw->pw_name, sizeof(g_username));
711 }
712
713 #ifdef HAVE_ICONV
714 if (g_codepage[0] == 0)
715 {
716 if (setlocale(LC_CTYPE, ""))
717 {
718 STRNCPY(g_codepage, nl_langinfo(CODESET), sizeof(g_codepage));
719 }
720 else
721 {
722 STRNCPY(g_codepage, DEFAULT_CODEPAGE, sizeof(g_codepage));
723 }
724 }
725 #endif
726
727 if (g_hostname[0] == 0)
728 {
729 if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
730 {
731 error("could not determine local hostname, use -n\n");
732 return 1;
733 }
734
735 p = strchr(fullhostname, '.');
736 if (p != NULL)
737 *p = 0;
738
739 STRNCPY(g_hostname, fullhostname, sizeof(g_hostname));
740 }
741
742 if ((flags & RDP_COMPRESSION) && (g_server_bpp > 8))
743 {
744 warning("rdp compression not supported for bpp > 8, compression disabled\n");
745 flags ^= RDP_COMPRESSION;
746 }
747
748 if (prompt_password && read_password(password, sizeof(password)))
749 flags |= RDP_LOGON_AUTO;
750
751 if (g_title[0] == 0)
752 {
753 strcpy(g_title, "rdesktop - ");
754 strncat(g_title, server, sizeof(g_title) - sizeof("rdesktop - "));
755 }
756
757 #ifdef RDP2VNC
758 rdp2vnc_connect(server, flags, domain, password, shell, directory);
759 return 0;
760 #else
761
762 if (!ui_init())
763 return 1;
764
765 #ifdef WITH_RDPSND
766 if (g_rdpsnd)
767 rdpsnd_init();
768 #endif
769 rdpdr_init();
770
771 if (!rdp_connect(server, flags, domain, password, shell, directory))
772 return 1;
773
774 /* By setting encryption to False here, we have an encrypted login
775 packet but unencrypted transfer of other packets */
776 if (!packet_encryption)
777 g_encryption = False;
778
779
780 DEBUG(("Connection successful.\n"));
781 memset(password, 0, sizeof(password));
782
783 if (ui_create_window())
784 {
785 rdp_main_loop(&deactivated, &ext_disc_reason);
786 ui_destroy_window();
787 }
788
789 DEBUG(("Disconnecting...\n"));
790 rdp_disconnect();
791 cache_save_state();
792 ui_deinit();
793
794 if (ext_disc_reason >= 2)
795 print_disconnect_reason(ext_disc_reason);
796
797 if (deactivated)
798 {
799 /* clean disconnect */
800 return 0;
801 }
802 else
803 {
804 if (ext_disc_reason == exDiscReasonAPIInitiatedDisconnect
805 || ext_disc_reason == exDiscReasonAPIInitiatedLogoff)
806 {
807 /* not so clean disconnect, but nothing to worry about */
808 return 0;
809 }
810 else
811 {
812 /* return error */
813 return 2;
814 }
815 }
816
817 #endif
818
819 }
820
821 #ifdef EGD_SOCKET
822 /* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
823 static BOOL
824 generate_random_egd(uint8 * buf)
825 {
826 struct sockaddr_un addr;
827 BOOL ret = False;
828 int fd;
829
830 fd = socket(AF_UNIX, SOCK_STREAM, 0);
831 if (fd == -1)
832 return False;
833
834 addr.sun_family = AF_UNIX;
835 memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
836 if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
837 goto err;
838
839 /* PRNGD and EGD use a simple communications protocol */
840 buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */
841 buf[1] = 32; /* Number of requested random bytes */
842 if (write(fd, buf, 2) != 2)
843 goto err;
844
845 if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */
846 goto err;
847
848 if (read(fd, buf, 32) != 32)
849 goto err;
850
851 ret = True;
852
853 err:
854 close(fd);
855 return ret;
856 }
857 #endif
858
859 /* Generate a 32-byte random for the secure transport code. */
860 void
861 generate_random(uint8 * random)
862 {
863 struct stat st;
864 struct tms tmsbuf;
865 MD5_CTX md5;
866 uint32 *r;
867 int fd, n;
868
869 /* If we have a kernel random device, try that first */
870 if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
871 || ((fd = open("/dev/random", O_RDONLY)) != -1))
872 {
873 n = read(fd, random, 32);
874 close(fd);
875 if (n == 32)
876 return;
877 }
878
879 #ifdef EGD_SOCKET
880 /* As a second preference use an EGD */
881 if (generate_random_egd(random))
882 return;
883 #endif
884
885 /* Otherwise use whatever entropy we can gather - ideas welcome. */
886 r = (uint32 *) random;
887 r[0] = (getpid()) | (getppid() << 16);
888 r[1] = (getuid()) | (getgid() << 16);
889 r[2] = times(&tmsbuf); /* system uptime (clocks) */
890 gettimeofday((struct timeval *) &r[3], NULL); /* sec and usec */
891 stat("/tmp", &st);
892 r[5] = st.st_atime;
893 r[6] = st.st_mtime;
894 r[7] = st.st_ctime;
895
896 /* Hash both halves with MD5 to obscure possible patterns */
897 MD5_Init(&md5);
898 MD5_Update(&md5, random, 16);
899 MD5_Final(random, &md5);
900 MD5_Update(&md5, random + 16, 16);
901 MD5_Final(random + 16, &md5);
902 }
903
904 /* malloc; exit if out of memory */
905 void *
906 xmalloc(int size)
907 {
908 void *mem = malloc(size);
909 if (mem == NULL)
910 {
911 error("xmalloc %d\n", size);
912 exit(1);
913 }
914 return mem;
915 }
916
917 /* realloc; exit if out of memory */
918 void *
919 xrealloc(void *oldmem, int size)
920 {
921 void *mem;
922
923 if (size < 1)
924 size = 1;
925 mem = realloc(oldmem, size);
926 if (mem == NULL)
927 {
928 error("xrealloc %d\n", size);
929 exit(1);
930 }
931 return mem;
932 }
933
934 /* free */
935 void
936 xfree(void *mem)
937 {
938 free(mem);
939 }
940
941 /* report an error */
942 void
943 error(char *format, ...)
944 {
945 va_list ap;
946
947 fprintf(stderr, "ERROR: ");
948
949 va_start(ap, format);
950 vfprintf(stderr, format, ap);
951 va_end(ap);
952 }
953
954 /* report a warning */
955 void
956 warning(char *format, ...)
957 {
958 va_list ap;
959
960 fprintf(stderr, "WARNING: ");
961
962 va_start(ap, format);
963 vfprintf(stderr, format, ap);
964 va_end(ap);
965 }
966
967 /* report an unimplemented protocol feature */
968 void
969 unimpl(char *format, ...)
970 {
971 va_list ap;
972
973 fprintf(stderr, "NOT IMPLEMENTED: ");
974
975 va_start(ap, format);
976 vfprintf(stderr, format, ap);
977 va_end(ap);
978 }
979
980 /* produce a hex dump */
981 void
982 hexdump(unsigned char *p, unsigned int len)
983 {
984 unsigned char *line = p;
985 int i, thisline, offset = 0;
986
987 while (offset < len)
988 {
989 printf("%04x ", offset);
990 thisline = len - offset;
991 if (thisline > 16)
992 thisline = 16;
993
994 for (i = 0; i < thisline; i++)
995 printf("%02x ", line[i]);
996
997 for (; i < 16; i++)
998 printf(" ");
999
1000 for (i = 0; i < thisline; i++)
1001 printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
1002
1003 printf("\n");
1004 offset += thisline;
1005 line += thisline;
1006 }
1007 }
1008
1009 /*
1010 input: src is the string we look in for needle.
1011 Needle may be escaped by a backslash, in
1012 that case we ignore that particular needle.
1013 return value: returns next src pointer, for
1014 succesive executions, like in a while loop
1015 if retval is 0, then there are no more args.
1016 pitfalls:
1017 src is modified. 0x00 chars are inserted to
1018 terminate strings.
1019 return val, points on the next val chr after ins
1020 0x00
1021
1022 example usage:
1023 while( (pos = next_arg( optarg, ',')) ){
1024 printf("%s\n",optarg);
1025 optarg=pos;
1026 }
1027
1028 */
1029 char *
1030 next_arg(char *src, char needle)
1031 {
1032 char *nextval;
1033 char *p;
1034 char *mvp = 0;
1035
1036 /* EOS */
1037 if (*src == (char) 0x00)
1038 return 0;
1039
1040 p = src;
1041 /* skip escaped needles */
1042 while ((nextval = strchr(p, needle)))
1043 {
1044 mvp = nextval - 1;
1045 /* found backslashed needle */
1046 if (*mvp == '\\' && (mvp > src))
1047 {
1048 /* move string one to the left */
1049 while (*(mvp + 1) != (char) 0x00)
1050 {
1051 *mvp = *(mvp + 1);
1052 *mvp++;
1053 }
1054 *mvp = (char) 0x00;
1055 p = nextval;
1056 }
1057 else
1058 {
1059 p = nextval + 1;
1060 break;
1061 }
1062
1063 }
1064
1065 /* more args available */
1066 if (nextval)
1067 {
1068 *nextval = (char) 0x00;
1069 return ++nextval;
1070 }
1071
1072 /* no more args after this, jump to EOS */
1073 nextval = src + strlen(src);
1074 return nextval;
1075 }
1076
1077
1078 void
1079 toupper_str(char *p)
1080 {
1081 while (*p)
1082 {
1083 if ((*p >= 'a') && (*p <= 'z'))
1084 *p = toupper((int) *p);
1085 p++;
1086 }
1087 }
1088
1089
1090 /* not all clibs got ltoa */
1091 #define LTOA_BUFSIZE (sizeof(long) * 8 + 1)
1092
1093 char *
1094 l_to_a(long N, int base)
1095 {
1096 static char ret[LTOA_BUFSIZE];
1097
1098 char *head = ret, buf[LTOA_BUFSIZE], *tail = buf + sizeof(buf);
1099
1100 register int divrem;
1101
1102 if (base < 36 || 2 > base)
1103 base = 10;
1104
1105 if (N < 0)
1106 {
1107 *head++ = '-';
1108 N = -N;
1109 }
1110
1111 tail = buf + sizeof(buf);
1112 *--tail = 0;
1113
1114 do
1115 {
1116 divrem = N % base;
1117 *--tail = (divrem <= 9) ? divrem + '0' : divrem + 'a' - 10;
1118 N /= base;
1119 }
1120 while (N);
1121
1122 strcpy(head, tail);
1123 return ret;
1124 }
1125
1126
1127 int
1128 load_licence(unsigned char **data)
1129 {
1130 char *home, *path;
1131 struct stat st;
1132 int fd, length;
1133
1134 home = getenv("HOME");
1135 if (home == NULL)
1136 return -1;
1137
1138 path = (char *) xmalloc(strlen(home) + strlen(g_hostname) + sizeof("/.rdesktop/licence."));
1139 sprintf(path, "%s/.rdesktop/licence.%s", home, g_hostname);
1140
1141 fd = open(path, O_RDONLY);
1142 if (fd == -1)
1143 return -1;
1144
1145 if (fstat(fd, &st))
1146 return -1;
1147
1148 *data = (uint8 *) xmalloc(st.st_size);
1149 length = read(fd, *data, st.st_size);
1150 close(fd);
1151 xfree(path);
1152 return length;
1153 }
1154
1155 void
1156 save_licence(unsigned char *data, int length)
1157 {
1158 char *home, *path, *tmppath;
1159 int fd;
1160
1161 home = getenv("HOME");
1162 if (home == NULL)
1163 return;
1164
1165 path = (char *) xmalloc(strlen(home) + strlen(g_hostname) + sizeof("/.rdesktop/licence."));
1166
1167 sprintf(path, "%s/.rdesktop", home);
1168 if ((mkdir(path, 0700) == -1) && errno != EEXIST)
1169 {
1170 perror(path);
1171 return;
1172 }
1173
1174 /* write licence to licence.hostname.new, then atomically rename to licence.hostname */
1175
1176 sprintf(path, "%s/.rdesktop/licence.%s", home, g_hostname);
1177 tmppath = (char *) xmalloc(strlen(path) + sizeof(".new"));
1178 strcpy(tmppath, path);
1179 strcat(tmppath, ".new");
1180
1181 fd = open(tmppath, O_WRONLY | O_CREAT | O_TRUNC, 0600);
1182 if (fd == -1)
1183 {
1184 perror(tmppath);
1185 return;
1186 }
1187
1188 if (write(fd, data, length) != length)
1189 {
1190 perror(tmppath);
1191 unlink(tmppath);
1192 }
1193 else if (rename(tmppath, path) == -1)
1194 {
1195 perror(path);
1196 unlink(tmppath);
1197 }
1198
1199 close(fd);
1200 xfree(tmppath);
1201 xfree(path);
1202 }
1203
1204 /* Create the bitmap cache directory */
1205 BOOL
1206 rd_pstcache_mkdir(void)
1207 {
1208 char *home;
1209 char bmpcache_dir[256];
1210
1211 home = getenv("HOME");
1212
1213 if (home == NULL)
1214 return False;
1215
1216 sprintf(bmpcache_dir, "%s/%s", home, ".rdesktop");
1217
1218 if ((mkdir(bmpcache_dir, S_IRWXU) == -1) && errno != EEXIST)
1219 {
1220 perror(bmpcache_dir);
1221 return False;
1222 }
1223
1224 sprintf(bmpcache_dir, "%s/%s", home, ".rdesktop/cache");
1225
1226 if ((mkdir(bmpcache_dir, S_IRWXU) == -1) && errno != EEXIST)
1227 {
1228 perror(bmpcache_dir);
1229 return False;
1230 }
1231
1232 return True;
1233 }
1234
1235 /* open a file in the .rdesktop directory */
1236 int
1237 rd_open_file(char *filename)
1238 {
1239 char *home;
1240 char fn[256];
1241 int fd;
1242
1243 home = getenv("HOME");
1244 if (home == NULL)
1245 return -1;
1246 sprintf(fn, "%s/.rdesktop/%s", home, filename);
1247 fd = open(fn, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
1248 if (fd == -1)
1249 perror(fn);
1250 return fd;
1251 }
1252
1253 /* close file */
1254 void
1255 rd_close_file(int fd)
1256 {
1257 close(fd);
1258 }
1259
1260 /* read from file*/
1261 int
1262 rd_read_file(int fd, void *ptr, int len)
1263 {
1264 return read(fd, ptr, len);
1265 }
1266
1267 /* write to file */
1268 int
1269 rd_write_file(int fd, void *ptr, int len)
1270 {
1271 return write(fd, ptr, len);
1272 }
1273
1274 /* move file pointer */
1275 int
1276 rd_lseek_file(int fd, int offset)
1277 {
1278 return lseek(fd, offset, SEEK_SET);
1279 }
1280
1281 /* do a write lock on a file */
1282 BOOL
1283 rd_lock_file(int fd, int start, int len)
1284 {
1285 struct flock lock;
1286
1287 lock.l_type = F_WRLCK;
1288 lock.l_whence = SEEK_SET;
1289 lock.l_start = start;
1290 lock.l_len = len;
1291 if (fcntl(fd, F_SETLK, &lock) == -1)
1292 return False;
1293 return True;
1294 }

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