/[rdesktop]/sourceforge.net/trunk/rdesktop/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 /sourceforge.net/trunk/rdesktop/rdesktop.c

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Revision 889 - (show annotations)
Sun Apr 17 23:14:20 2005 UTC (19 years ago) by jdmeijer
File MIME type: text/plain
File size: 27069 byte(s)
Add alternative mppc decompression code with 64kB history buffer from Vahur Sinijärv, and reenable rdp5 (persistent) bitmap cache 2 (64x64)

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/types.h>
44 #include <sys/socket.h> /* socket connect */
45 #include <sys/un.h> /* sockaddr_un */
46 #endif
47
48 #include <openssl/md5.h>
49
50 char g_title[64] = "";
51 char g_username[64];
52 char g_hostname[16];
53 char keymapname[16];
54 int g_keylayout = 0x409; /* Defaults to US keyboard layout */
55
56 int g_width = 800; /* width is special: If 0, the
57 geometry will be fetched from
58 _NET_WORKAREA. If negative,
59 absolute value specifies the
60 percent of the whole screen. */
61 int g_height = 600;
62 int g_xpos = 0;
63 int g_ypos = 0;
64 int g_pos = 0; /* 0 position unspecified,
65 1 specified,
66 2 xpos neg,
67 4 ypos neg */
68 extern int g_tcp_port_rdp;
69 int g_server_bpp = 8;
70 int g_win_button_size = 0; /* If zero, disable single app mode */
71 BOOL g_bitmap_compression = True;
72 BOOL g_sendmotion = True;
73 BOOL g_bitmap_cache = True;
74 BOOL g_bitmap_cache_persist_enable = False;
75 BOOL g_bitmap_cache_precache = True;
76 BOOL g_encryption = True;
77 BOOL packet_encryption = True;
78 BOOL g_desktop_save = True; /* desktop save order */
79 BOOL g_polygon_ellipse_orders = True; /* polygon / ellipse orders */
80 BOOL g_fullscreen = False;
81 BOOL g_grab_keyboard = True;
82 BOOL g_hide_decorations = False;
83 BOOL g_use_rdp5 = True;
84 BOOL g_console_session = False;
85 BOOL g_numlock_sync = False;
86 BOOL g_owncolmap = False;
87 BOOL g_ownbackstore = True; /* We can't rely on external BackingStore */
88 uint32 g_embed_wnd;
89 uint32 g_rdp5_performanceflags =
90 RDP5_NO_WALLPAPER | RDP5_NO_FULLWINDOWDRAG | RDP5_NO_MENUANIMATIONS;
91
92 #ifdef WITH_RDPSND
93 BOOL g_rdpsnd = False;
94 #endif
95
96 #ifdef HAVE_ICONV
97 char g_codepage[16] = "";
98 #endif
99
100 extern RDPDR_DEVICE g_rdpdr_device[];
101 extern uint32 g_num_devices;
102 extern char *g_rdpdr_clientname;
103
104 #ifdef RDP2VNC
105 extern int rfb_port;
106 extern int defer_time;
107 void
108 rdp2vnc_connect(char *server, uint32 flags, char *domain, char *password,
109 char *shell, char *directory);
110 #endif
111 /* Display usage information */
112 static void
113 usage(char *program)
114 {
115 fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n");
116 fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2005 Matt Chapman.\n");
117 fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n");
118
119 fprintf(stderr, "Usage: %s [options] server[:port]\n", program);
120 #ifdef RDP2VNC
121 fprintf(stderr, " -V: vnc port\n");
122 fprintf(stderr, " -Q: defer time (ms)\n");
123 #endif
124 fprintf(stderr, " -u: user name\n");
125 fprintf(stderr, " -d: domain\n");
126 fprintf(stderr, " -s: shell\n");
127 fprintf(stderr, " -c: working directory\n");
128 fprintf(stderr, " -p: password (- to prompt)\n");
129 fprintf(stderr, " -n: client hostname\n");
130 fprintf(stderr, " -k: keyboard layout on server (en-us, de, sv, etc.)\n");
131 fprintf(stderr, " -g: desktop geometry (WxH)\n");
132 fprintf(stderr, " -f: full-screen mode\n");
133 fprintf(stderr, " -b: force bitmap updates\n");
134 #ifdef HAVE_ICONV
135 fprintf(stderr, " -L: local codepage\n");
136 #endif
137 fprintf(stderr, " -B: use BackingStore of X-server (if available)\n");
138 fprintf(stderr, " -e: disable encryption (French TS)\n");
139 fprintf(stderr, " -E: disable encryption from client to server\n");
140 fprintf(stderr, " -m: do not send motion events\n");
141 fprintf(stderr, " -C: use private colour map\n");
142 fprintf(stderr, " -D: hide window manager decorations\n");
143 fprintf(stderr, " -K: keep window manager key bindings\n");
144 fprintf(stderr, " -S: caption button size (single application mode)\n");
145 fprintf(stderr, " -T: window title\n");
146 fprintf(stderr, " -N: enable numlock syncronization\n");
147 fprintf(stderr, " -X: embed into another window with a given id.\n");
148 fprintf(stderr, " -a: connection colour depth\n");
149 fprintf(stderr, " -z: enable rdp compression\n");
150 fprintf(stderr, " -x: RDP5 experience (m[odem 28.8], b[roadband], l[an] or hex nr.)\n");
151 fprintf(stderr, " -P: use persistent bitmap caching\n");
152 fprintf(stderr, " -r: enable specified device redirection (this flag can be repeated)\n");
153 fprintf(stderr,
154 " '-r comport:COM1=/dev/ttyS0': enable serial redirection of /dev/ttyS0 to COM1\n");
155 fprintf(stderr, " or COM1=/dev/ttyS0,COM2=/dev/ttyS1\n");
156 fprintf(stderr,
157 " '-r disk:floppy=/mnt/floppy': enable redirection of /mnt/floppy to 'floppy' share\n");
158 fprintf(stderr, " or 'floppy=/mnt/floppy,cdrom=/mnt/cdrom'\n");
159 fprintf(stderr, " '-r clientname=<client name>': Set the client name displayed\n");
160 fprintf(stderr, " for redirected disks\n");
161 fprintf(stderr,
162 " '-r lptport:LPT1=/dev/lp0': enable parallel redirection of /dev/lp0 to LPT1\n");
163 fprintf(stderr, " or LPT1=/dev/lp0,LPT2=/dev/lp1\n");
164 fprintf(stderr, " '-r printer:mydeskjet': enable printer redirection\n");
165 fprintf(stderr,
166 " or mydeskjet=\"HP LaserJet IIIP\" to enter server driver as well\n");
167 fprintf(stderr, " '-r sound:[local|off|remote]': enable sound redirection\n");
168 fprintf(stderr, " remote would leave sound on server\n");
169 fprintf(stderr, " -0: attach to console\n");
170 fprintf(stderr, " -4: use RDP version 4\n");
171 fprintf(stderr, " -5: use RDP version 5 (default)\n");
172 }
173
174 void
175 print_disconnect_reason(uint16 reason)
176 {
177 char *text;
178
179 switch (reason)
180 {
181 case exDiscReasonNoInfo:
182 text = "No information available";
183 break;
184
185 case exDiscReasonAPIInitiatedDisconnect:
186 text = "Server initiated disconnect";
187 break;
188
189 case exDiscReasonAPIInitiatedLogoff:
190 text = "Server initiated logoff";
191 break;
192
193 case exDiscReasonServerIdleTimeout:
194 text = "Server idle timeout reached";
195 break;
196
197 case exDiscReasonServerLogonTimeout:
198 text = "Server logon timeout reached";
199 break;
200
201 case exDiscReasonReplacedByOtherConnection:
202 text = "The session was replaced";
203 break;
204
205 case exDiscReasonOutOfMemory:
206 text = "The server is out of memory";
207 break;
208
209 case exDiscReasonServerDeniedConnection:
210 text = "The server denied the connection";
211 break;
212
213 case exDiscReasonServerDeniedConnectionFips:
214 text = "The server denied the connection for security reason";
215 break;
216
217 case exDiscReasonLicenseInternal:
218 text = "Internal licensing error";
219 break;
220
221 case exDiscReasonLicenseNoLicenseServer:
222 text = "No license server available";
223 break;
224
225 case exDiscReasonLicenseNoLicense:
226 text = "No valid license available";
227 break;
228
229 case exDiscReasonLicenseErrClientMsg:
230 text = "Invalid licensing message";
231 break;
232
233 case exDiscReasonLicenseHwidDoesntMatchLicense:
234 text = "Hardware id doesn't match software license";
235 break;
236
237 case exDiscReasonLicenseErrClientLicense:
238 text = "Client license error";
239 break;
240
241 case exDiscReasonLicenseCantFinishProtocol:
242 text = "Network error during licensing protocol";
243 break;
244
245 case exDiscReasonLicenseClientEndedProtocol:
246 text = "Licensing protocol was not completed";
247 break;
248
249 case exDiscReasonLicenseErrClientEncryption:
250 text = "Incorrect client license enryption";
251 break;
252
253 case exDiscReasonLicenseCantUpgradeLicense:
254 text = "Can't upgrade license";
255 break;
256
257 case exDiscReasonLicenseNoRemoteConnections:
258 text = "The server is not licensed to accept remote connections";
259 break;
260
261 default:
262 if (reason > 0x1000 && reason < 0x7fff)
263 {
264 text = "Internal protocol error";
265 }
266 else
267 {
268 text = "Unknown reason";
269 }
270 }
271 fprintf(stderr, "disconnect: %s.\n", text);
272 }
273
274 static BOOL
275 read_password(char *password, int size)
276 {
277 struct termios tios;
278 BOOL ret = False;
279 int istty = 0;
280 char *p;
281
282 if (tcgetattr(STDIN_FILENO, &tios) == 0)
283 {
284 fprintf(stderr, "Password: ");
285 tios.c_lflag &= ~ECHO;
286 tcsetattr(STDIN_FILENO, TCSANOW, &tios);
287 istty = 1;
288 }
289
290 if (fgets(password, size, stdin) != NULL)
291 {
292 ret = True;
293
294 /* strip final newline */
295 p = strchr(password, '\n');
296 if (p != NULL)
297 *p = 0;
298 }
299
300 if (istty)
301 {
302 tios.c_lflag |= ECHO;
303 tcsetattr(STDIN_FILENO, TCSANOW, &tios);
304 fprintf(stderr, "\n");
305 }
306
307 return ret;
308 }
309
310 static void
311 parse_server_and_port(char *server)
312 {
313 char *p;
314 #ifdef IPv6
315 int addr_colons;
316 #endif
317
318 #ifdef IPv6
319 p = server;
320 addr_colons = 0;
321 while (*p)
322 if (*p++ == ':')
323 addr_colons++;
324 if (addr_colons >= 2)
325 {
326 /* numeric IPv6 style address format - [1:2:3::4]:port */
327 p = strchr(server, ']');
328 if (*server == '[' && p != NULL)
329 {
330 if (*(p + 1) == ':' && *(p + 2) != '\0')
331 g_tcp_port_rdp = strtol(p + 2, NULL, 10);
332 /* remove the port number and brackets from the address */
333 *p = '\0';
334 strncpy(server, server + 1, strlen(server));
335 }
336 }
337 else
338 {
339 /* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */
340 p = strchr(server, ':');
341 if (p != NULL)
342 {
343 g_tcp_port_rdp = strtol(p + 1, NULL, 10);
344 *p = 0;
345 }
346 }
347 #else /* no IPv6 support */
348 p = strchr(server, ':');
349 if (p != NULL)
350 {
351 g_tcp_port_rdp = strtol(p + 1, NULL, 10);
352 *p = 0;
353 }
354 #endif /* IPv6 */
355
356 }
357
358 /* Client program */
359 int
360 main(int argc, char *argv[])
361 {
362 char server[64];
363 char fullhostname[64];
364 char domain[16];
365 char password[64];
366 char shell[128];
367 char directory[32];
368 BOOL prompt_password, deactivated;
369 struct passwd *pw;
370 uint32 flags, ext_disc_reason = 0;
371 char *p;
372 int c;
373
374 int username_option = 0;
375
376 flags = RDP_LOGON_NORMAL;
377 prompt_password = False;
378 domain[0] = password[0] = shell[0] = directory[0] = 0;
379 strcpy(keymapname, "en-us");
380 g_embed_wnd = 0;
381
382 g_num_devices = 0;
383
384 #ifdef RDP2VNC
385 #define VNCOPT "V:Q:"
386 #else
387 #define VNCOPT
388 #endif
389
390 while ((c = getopt(argc, argv,
391 VNCOPT "u:L:d:s:c:p:n:k:g:fbBeEmzCDKS:T:NX:a:x:Pr:045h?")) != -1)
392 {
393 switch (c)
394 {
395 #ifdef RDP2VNC
396 case 'V':
397 rfb_port = strtol(optarg, NULL, 10);
398 if (rfb_port < 100)
399 rfb_port += 5900;
400 break;
401
402 case 'Q':
403 defer_time = strtol(optarg, NULL, 10);
404 if (defer_time < 0)
405 defer_time = 0;
406 break;
407 #endif
408
409 case 'u':
410 STRNCPY(g_username, optarg, sizeof(g_username));
411 username_option = 1;
412 break;
413
414 case 'L':
415 #ifdef HAVE_ICONV
416 STRNCPY(g_codepage, optarg, sizeof(g_codepage));
417 #else
418 error("iconv support not available\n");
419 #endif
420 break;
421
422 case 'd':
423 STRNCPY(domain, optarg, sizeof(domain));
424 break;
425
426 case 's':
427 STRNCPY(shell, optarg, sizeof(shell));
428 break;
429
430 case 'c':
431 STRNCPY(directory, optarg, sizeof(directory));
432 break;
433
434 case 'p':
435 if ((optarg[0] == '-') && (optarg[1] == 0))
436 {
437 prompt_password = True;
438 break;
439 }
440
441 STRNCPY(password, optarg, sizeof(password));
442 flags |= RDP_LOGON_AUTO;
443
444 /* try to overwrite argument so it won't appear in ps */
445 p = optarg;
446 while (*p)
447 *(p++) = 'X';
448 break;
449
450 case 'n':
451 STRNCPY(g_hostname, optarg, sizeof(g_hostname));
452 break;
453
454 case 'k':
455 STRNCPY(keymapname, optarg, sizeof(keymapname));
456 break;
457
458 case 'g':
459 g_fullscreen = False;
460 if (!strcmp(optarg, "workarea"))
461 {
462 g_width = g_height = 0;
463 break;
464 }
465
466 g_width = strtol(optarg, &p, 10);
467 if (g_width <= 0)
468 {
469 error("invalid geometry\n");
470 return 1;
471 }
472
473 if (*p == 'x')
474 g_height = strtol(p + 1, &p, 10);
475
476 if (g_height <= 0)
477 {
478 error("invalid geometry\n");
479 return 1;
480 }
481
482 if (*p == '%')
483 {
484 g_width = -g_width;
485 p++;
486 }
487
488 if (*p == '+' || *p == '-')
489 {
490 g_pos |= (*p == '-') ? 2 : 1;
491 g_xpos = strtol(p, &p, 10);
492
493 }
494 if (*p == '+' || *p == '-')
495 {
496 g_pos |= (*p == '-') ? 4 : 1;
497 g_ypos = strtol(p, NULL, 10);
498 }
499
500 break;
501
502 case 'f':
503 g_fullscreen = True;
504 break;
505
506 case 'b':
507 g_bitmap_cache = False;
508 break;
509
510 case 'B':
511 g_ownbackstore = False;
512 break;
513
514 case 'e':
515 g_encryption = False;
516 break;
517 case 'E':
518 packet_encryption = False;
519 break;
520 case 'm':
521 g_sendmotion = False;
522 break;
523
524 case 'C':
525 g_owncolmap = True;
526 break;
527
528 case 'D':
529 g_hide_decorations = True;
530 break;
531
532 case 'K':
533 g_grab_keyboard = False;
534 break;
535
536 case 'S':
537 if (!strcmp(optarg, "standard"))
538 {
539 g_win_button_size = 18;
540 break;
541 }
542
543 g_win_button_size = strtol(optarg, &p, 10);
544
545 if (*p)
546 {
547 error("invalid button size\n");
548 return 1;
549 }
550
551 break;
552
553 case 'T':
554 STRNCPY(g_title, optarg, sizeof(g_title));
555 break;
556
557 case 'N':
558 g_numlock_sync = True;
559 break;
560
561 case 'X':
562 g_embed_wnd = strtol(optarg, NULL, 0);
563 break;
564
565 case 'a':
566 g_server_bpp = strtol(optarg, NULL, 10);
567 if (g_server_bpp != 8 && g_server_bpp != 16 && g_server_bpp != 15
568 && g_server_bpp != 24)
569 {
570 error("invalid server bpp\n");
571 return 1;
572 }
573 break;
574
575 case 'z':
576 DEBUG(("rdp compression enabled\n"));
577 flags |= (RDP_LOGON_COMPRESSION | RDP_LOGON_COMPRESSION2);
578 break;
579
580 case 'x':
581 if (strncmp("modem", optarg, 1) == 0)
582 {
583 g_rdp5_performanceflags =
584 RDP5_NO_WALLPAPER | RDP5_NO_FULLWINDOWDRAG |
585 RDP5_NO_MENUANIMATIONS | RDP5_NO_THEMING;
586 }
587 else if (strncmp("broadband", optarg, 1) == 0)
588 {
589 g_rdp5_performanceflags = RDP5_NO_WALLPAPER;
590 }
591 else if (strncmp("lan", optarg, 1) == 0)
592 {
593 g_rdp5_performanceflags = RDP5_DISABLE_NOTHING;
594 }
595 else
596 {
597 g_rdp5_performanceflags = strtol(optarg, NULL, 16);
598 }
599 break;
600
601 case 'P':
602 g_bitmap_cache_persist_enable = True;
603 break;
604
605 case 'r':
606
607 if (strncmp("sound", optarg, 5) == 0)
608 {
609 optarg += 5;
610
611 if (*optarg == ':')
612 {
613 *optarg++;
614 while ((p = next_arg(optarg, ',')))
615 {
616 if (strncmp("remote", optarg, 6) == 0)
617 flags |= RDP_LOGON_LEAVE_AUDIO;
618
619 if (strncmp("local", optarg, 5) == 0)
620 #ifdef WITH_RDPSND
621 g_rdpsnd = True;
622 #else
623 warning("Not compiled with sound support\n");
624 #endif
625
626 if (strncmp("off", optarg, 3) == 0)
627 #ifdef WITH_RDPSND
628 g_rdpsnd = False;
629 #else
630 warning("Not compiled with sound support\n");
631 #endif
632
633 optarg = p;
634 }
635 }
636 else
637 {
638 #ifdef WITH_RDPSND
639 g_rdpsnd = True;
640 #else
641 warning("Not compiled with sound support\n");
642 #endif
643 }
644 }
645 else if (strncmp("disk", optarg, 4) == 0)
646 {
647 /* -r disk:h:=/mnt/floppy */
648 disk_enum_devices(&g_num_devices, optarg + 4);
649 }
650 else if (strncmp("comport", optarg, 7) == 0)
651 {
652 serial_enum_devices(&g_num_devices, optarg + 7);
653 }
654 else if (strncmp("lptport", optarg, 7) == 0)
655 {
656 parallel_enum_devices(&g_num_devices, optarg + 7);
657 }
658 else if (strncmp("printer", optarg, 7) == 0)
659 {
660 printer_enum_devices(&g_num_devices, optarg + 7);
661 }
662 else if (strncmp("clientname", optarg, 7) == 0)
663 {
664 g_rdpdr_clientname = xmalloc(strlen(optarg + 11) + 1);
665 strcpy(g_rdpdr_clientname, optarg + 11);
666 }
667 else
668 {
669 warning("Unknown -r argument\n\n\tPossible arguments are: comport, disk, lptport, printer, sound\n");
670 }
671 break;
672
673 case '0':
674 g_console_session = True;
675 break;
676
677 case '4':
678 g_use_rdp5 = False;
679 break;
680
681 case '5':
682 g_use_rdp5 = True;
683 break;
684
685 case 'h':
686 case '?':
687 default:
688 usage(argv[0]);
689 return 1;
690 }
691 }
692
693 if (argc - optind != 1)
694 {
695 usage(argv[0]);
696 return 1;
697 }
698
699 STRNCPY(server, argv[optind], sizeof(server));
700 parse_server_and_port(server);
701
702 if (!username_option)
703 {
704 pw = getpwuid(getuid());
705 if ((pw == NULL) || (pw->pw_name == NULL))
706 {
707 error("could not determine username, use -u\n");
708 return 1;
709 }
710
711 STRNCPY(g_username, pw->pw_name, sizeof(g_username));
712 }
713
714 #ifdef HAVE_ICONV
715 if (g_codepage[0] == 0)
716 {
717 if (setlocale(LC_CTYPE, ""))
718 {
719 STRNCPY(g_codepage, nl_langinfo(CODESET), sizeof(g_codepage));
720 }
721 else
722 {
723 STRNCPY(g_codepage, DEFAULT_CODEPAGE, sizeof(g_codepage));
724 }
725 }
726 #endif
727
728 if (g_hostname[0] == 0)
729 {
730 if (gethostname(fullhostname, sizeof(fullhostname)) == -1)
731 {
732 error("could not determine local hostname, use -n\n");
733 return 1;
734 }
735
736 p = strchr(fullhostname, '.');
737 if (p != NULL)
738 *p = 0;
739
740 STRNCPY(g_hostname, fullhostname, sizeof(g_hostname));
741 }
742
743 if (prompt_password && read_password(password, sizeof(password)))
744 flags |= RDP_LOGON_AUTO;
745
746 if (g_title[0] == 0)
747 {
748 strcpy(g_title, "rdesktop - ");
749 strncat(g_title, server, sizeof(g_title) - sizeof("rdesktop - "));
750 }
751
752 #ifdef RDP2VNC
753 rdp2vnc_connect(server, flags, domain, password, shell, directory);
754 return 0;
755 #else
756
757 if (!ui_init())
758 return 1;
759
760 #ifdef WITH_RDPSND
761 if (g_rdpsnd)
762 rdpsnd_init();
763 #endif
764 rdpdr_init();
765
766 if (!rdp_connect(server, flags, domain, password, shell, directory))
767 return 1;
768
769 /* By setting encryption to False here, we have an encrypted login
770 packet but unencrypted transfer of other packets */
771 if (!packet_encryption)
772 g_encryption = False;
773
774
775 DEBUG(("Connection successful.\n"));
776 memset(password, 0, sizeof(password));
777
778 if (ui_create_window())
779 {
780 rdp_main_loop(&deactivated, &ext_disc_reason);
781 ui_destroy_window();
782 }
783
784 DEBUG(("Disconnecting...\n"));
785 rdp_disconnect();
786 cache_save_state();
787 ui_deinit();
788
789 if (ext_disc_reason >= 2)
790 print_disconnect_reason(ext_disc_reason);
791
792 if (deactivated)
793 {
794 /* clean disconnect */
795 return 0;
796 }
797 else
798 {
799 if (ext_disc_reason == exDiscReasonAPIInitiatedDisconnect
800 || ext_disc_reason == exDiscReasonAPIInitiatedLogoff)
801 {
802 /* not so clean disconnect, but nothing to worry about */
803 return 0;
804 }
805 else
806 {
807 /* return error */
808 return 2;
809 }
810 }
811
812 #endif
813
814 }
815
816 #ifdef EGD_SOCKET
817 /* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */
818 static BOOL
819 generate_random_egd(uint8 * buf)
820 {
821 struct sockaddr_un addr;
822 BOOL ret = False;
823 int fd;
824
825 fd = socket(AF_UNIX, SOCK_STREAM, 0);
826 if (fd == -1)
827 return False;
828
829 addr.sun_family = AF_UNIX;
830 memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET));
831 if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
832 goto err;
833
834 /* PRNGD and EGD use a simple communications protocol */
835 buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */
836 buf[1] = 32; /* Number of requested random bytes */
837 if (write(fd, buf, 2) != 2)
838 goto err;
839
840 if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */
841 goto err;
842
843 if (read(fd, buf, 32) != 32)
844 goto err;
845
846 ret = True;
847
848 err:
849 close(fd);
850 return ret;
851 }
852 #endif
853
854 /* Generate a 32-byte random for the secure transport code. */
855 void
856 generate_random(uint8 * random)
857 {
858 struct stat st;
859 struct tms tmsbuf;
860 MD5_CTX md5;
861 uint32 *r;
862 int fd, n;
863
864 /* If we have a kernel random device, try that first */
865 if (((fd = open("/dev/urandom", O_RDONLY)) != -1)
866 || ((fd = open("/dev/random", O_RDONLY)) != -1))
867 {
868 n = read(fd, random, 32);
869 close(fd);
870 if (n == 32)
871 return;
872 }
873
874 #ifdef EGD_SOCKET
875 /* As a second preference use an EGD */
876 if (generate_random_egd(random))
877 return;
878 #endif
879
880 /* Otherwise use whatever entropy we can gather - ideas welcome. */
881 r = (uint32 *) random;
882 r[0] = (getpid()) | (getppid() << 16);
883 r[1] = (getuid()) | (getgid() << 16);
884 r[2] = times(&tmsbuf); /* system uptime (clocks) */
885 gettimeofday((struct timeval *) &r[3], NULL); /* sec and usec */
886 stat("/tmp", &st);
887 r[5] = st.st_atime;
888 r[6] = st.st_mtime;
889 r[7] = st.st_ctime;
890
891 /* Hash both halves with MD5 to obscure possible patterns */
892 MD5_Init(&md5);
893 MD5_Update(&md5, random, 16);
894 MD5_Final(random, &md5);
895 MD5_Update(&md5, random + 16, 16);
896 MD5_Final(random + 16, &md5);
897 }
898
899 /* malloc; exit if out of memory */
900 void *
901 xmalloc(int size)
902 {
903 void *mem = malloc(size);
904 if (mem == NULL)
905 {
906 error("xmalloc %d\n", size);
907 exit(1);
908 }
909 return mem;
910 }
911
912 /* realloc; exit if out of memory */
913 void *
914 xrealloc(void *oldmem, int size)
915 {
916 void *mem;
917
918 if (size < 1)
919 size = 1;
920 mem = realloc(oldmem, size);
921 if (mem == NULL)
922 {
923 error("xrealloc %d\n", size);
924 exit(1);
925 }
926 return mem;
927 }
928
929 /* free */
930 void
931 xfree(void *mem)
932 {
933 free(mem);
934 }
935
936 /* report an error */
937 void
938 error(char *format, ...)
939 {
940 va_list ap;
941
942 fprintf(stderr, "ERROR: ");
943
944 va_start(ap, format);
945 vfprintf(stderr, format, ap);
946 va_end(ap);
947 }
948
949 /* report a warning */
950 void
951 warning(char *format, ...)
952 {
953 va_list ap;
954
955 fprintf(stderr, "WARNING: ");
956
957 va_start(ap, format);
958 vfprintf(stderr, format, ap);
959 va_end(ap);
960 }
961
962 /* report an unimplemented protocol feature */
963 void
964 unimpl(char *format, ...)
965 {
966 va_list ap;
967
968 fprintf(stderr, "NOT IMPLEMENTED: ");
969
970 va_start(ap, format);
971 vfprintf(stderr, format, ap);
972 va_end(ap);
973 }
974
975 /* produce a hex dump */
976 void
977 hexdump(unsigned char *p, unsigned int len)
978 {
979 unsigned char *line = p;
980 int i, thisline, offset = 0;
981
982 while (offset < len)
983 {
984 printf("%04x ", offset);
985 thisline = len - offset;
986 if (thisline > 16)
987 thisline = 16;
988
989 for (i = 0; i < thisline; i++)
990 printf("%02x ", line[i]);
991
992 for (; i < 16; i++)
993 printf(" ");
994
995 for (i = 0; i < thisline; i++)
996 printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.');
997
998 printf("\n");
999 offset += thisline;
1000 line += thisline;
1001 }
1002 }
1003
1004 /*
1005 input: src is the string we look in for needle.
1006 Needle may be escaped by a backslash, in
1007 that case we ignore that particular needle.
1008 return value: returns next src pointer, for
1009 succesive executions, like in a while loop
1010 if retval is 0, then there are no more args.
1011 pitfalls:
1012 src is modified. 0x00 chars are inserted to
1013 terminate strings.
1014 return val, points on the next val chr after ins
1015 0x00
1016
1017 example usage:
1018 while( (pos = next_arg( optarg, ',')) ){
1019 printf("%s\n",optarg);
1020 optarg=pos;
1021 }
1022
1023 */
1024 char *
1025 next_arg(char *src, char needle)
1026 {
1027 char *nextval;
1028 char *p;
1029 char *mvp = 0;
1030
1031 /* EOS */
1032 if (*src == (char) 0x00)
1033 return 0;
1034
1035 p = src;
1036 /* skip escaped needles */
1037 while ((nextval = strchr(p, needle)))
1038 {
1039 mvp = nextval - 1;
1040 /* found backslashed needle */
1041 if (*mvp == '\\' && (mvp > src))
1042 {
1043 /* move string one to the left */
1044 while (*(mvp + 1) != (char) 0x00)
1045 {
1046 *mvp = *(mvp + 1);
1047 *mvp++;
1048 }
1049 *mvp = (char) 0x00;
1050 p = nextval;
1051 }
1052 else
1053 {
1054 p = nextval + 1;
1055 break;
1056 }
1057
1058 }
1059
1060 /* more args available */
1061 if (nextval)
1062 {
1063 *nextval = (char) 0x00;
1064 return ++nextval;
1065 }
1066
1067 /* no more args after this, jump to EOS */
1068 nextval = src + strlen(src);
1069 return nextval;
1070 }
1071
1072
1073 void
1074 toupper_str(char *p)
1075 {
1076 while (*p)
1077 {
1078 if ((*p >= 'a') && (*p <= 'z'))
1079 *p = toupper((int) *p);
1080 p++;
1081 }
1082 }
1083
1084
1085 /* not all clibs got ltoa */
1086 #define LTOA_BUFSIZE (sizeof(long) * 8 + 1)
1087
1088 char *
1089 l_to_a(long N, int base)
1090 {
1091 static char ret[LTOA_BUFSIZE];
1092
1093 char *head = ret, buf[LTOA_BUFSIZE], *tail = buf + sizeof(buf);
1094
1095 register int divrem;
1096
1097 if (base < 36 || 2 > base)
1098 base = 10;
1099
1100 if (N < 0)
1101 {
1102 *head++ = '-';
1103 N = -N;
1104 }
1105
1106 tail = buf + sizeof(buf);
1107 *--tail = 0;
1108
1109 do
1110 {
1111 divrem = N % base;
1112 *--tail = (divrem <= 9) ? divrem + '0' : divrem + 'a' - 10;
1113 N /= base;
1114 }
1115 while (N);
1116
1117 strcpy(head, tail);
1118 return ret;
1119 }
1120
1121
1122 int
1123 load_licence(unsigned char **data)
1124 {
1125 char *home, *path;
1126 struct stat st;
1127 int fd, length;
1128
1129 home = getenv("HOME");
1130 if (home == NULL)
1131 return -1;
1132
1133 path = (char *) xmalloc(strlen(home) + strlen(g_hostname) + sizeof("/.rdesktop/licence."));
1134 sprintf(path, "%s/.rdesktop/licence.%s", home, g_hostname);
1135
1136 fd = open(path, O_RDONLY);
1137 if (fd == -1)
1138 return -1;
1139
1140 if (fstat(fd, &st))
1141 return -1;
1142
1143 *data = (uint8 *) xmalloc(st.st_size);
1144 length = read(fd, *data, st.st_size);
1145 close(fd);
1146 xfree(path);
1147 return length;
1148 }
1149
1150 void
1151 save_licence(unsigned char *data, int length)
1152 {
1153 char *home, *path, *tmppath;
1154 int fd;
1155
1156 home = getenv("HOME");
1157 if (home == NULL)
1158 return;
1159
1160 path = (char *) xmalloc(strlen(home) + strlen(g_hostname) + sizeof("/.rdesktop/licence."));
1161
1162 sprintf(path, "%s/.rdesktop", home);
1163 if ((mkdir(path, 0700) == -1) && errno != EEXIST)
1164 {
1165 perror(path);
1166 return;
1167 }
1168
1169 /* write licence to licence.hostname.new, then atomically rename to licence.hostname */
1170
1171 sprintf(path, "%s/.rdesktop/licence.%s", home, g_hostname);
1172 tmppath = (char *) xmalloc(strlen(path) + sizeof(".new"));
1173 strcpy(tmppath, path);
1174 strcat(tmppath, ".new");
1175
1176 fd = open(tmppath, O_WRONLY | O_CREAT | O_TRUNC, 0600);
1177 if (fd == -1)
1178 {
1179 perror(tmppath);
1180 return;
1181 }
1182
1183 if (write(fd, data, length) != length)
1184 {
1185 perror(tmppath);
1186 unlink(tmppath);
1187 }
1188 else if (rename(tmppath, path) == -1)
1189 {
1190 perror(path);
1191 unlink(tmppath);
1192 }
1193
1194 close(fd);
1195 xfree(tmppath);
1196 xfree(path);
1197 }
1198
1199 /* Create the bitmap cache directory */
1200 BOOL
1201 rd_pstcache_mkdir(void)
1202 {
1203 char *home;
1204 char bmpcache_dir[256];
1205
1206 home = getenv("HOME");
1207
1208 if (home == NULL)
1209 return False;
1210
1211 sprintf(bmpcache_dir, "%s/%s", home, ".rdesktop");
1212
1213 if ((mkdir(bmpcache_dir, S_IRWXU) == -1) && errno != EEXIST)
1214 {
1215 perror(bmpcache_dir);
1216 return False;
1217 }
1218
1219 sprintf(bmpcache_dir, "%s/%s", home, ".rdesktop/cache");
1220
1221 if ((mkdir(bmpcache_dir, S_IRWXU) == -1) && errno != EEXIST)
1222 {
1223 perror(bmpcache_dir);
1224 return False;
1225 }
1226
1227 return True;
1228 }
1229
1230 /* open a file in the .rdesktop directory */
1231 int
1232 rd_open_file(char *filename)
1233 {
1234 char *home;
1235 char fn[256];
1236 int fd;
1237
1238 home = getenv("HOME");
1239 if (home == NULL)
1240 return -1;
1241 sprintf(fn, "%s/.rdesktop/%s", home, filename);
1242 fd = open(fn, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
1243 if (fd == -1)
1244 perror(fn);
1245 return fd;
1246 }
1247
1248 /* close file */
1249 void
1250 rd_close_file(int fd)
1251 {
1252 close(fd);
1253 }
1254
1255 /* read from file*/
1256 int
1257 rd_read_file(int fd, void *ptr, int len)
1258 {
1259 return read(fd, ptr, len);
1260 }
1261
1262 /* write to file */
1263 int
1264 rd_write_file(int fd, void *ptr, int len)
1265 {
1266 return write(fd, ptr, len);
1267 }
1268
1269 /* move file pointer */
1270 int
1271 rd_lseek_file(int fd, int offset)
1272 {
1273 return lseek(fd, offset, SEEK_SET);
1274 }
1275
1276 /* do a write lock on a file */
1277 BOOL
1278 rd_lock_file(int fd, int start, int len)
1279 {
1280 struct flock lock;
1281
1282 lock.l_type = F_WRLCK;
1283 lock.l_whence = SEEK_SET;
1284 lock.l_start = start;
1285 lock.l_len = len;
1286 if (fcntl(fd, F_SETLK, &lock) == -1)
1287 return False;
1288 return True;
1289 }

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