1 |
/* |
/* |
2 |
rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
3 |
Entrypoint and utility functions |
Entrypoint and utility functions |
4 |
Copyright (C) Matthew Chapman 1999-2000 |
Copyright (C) Matthew Chapman 1999-2002 |
5 |
|
|
6 |
This program is free software; you can redistribute it and/or modify |
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 |
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 |
the Free Software Foundation; either version 2 of the License, or |
9 |
(at your option) any later version. |
(at your option) any later version. |
10 |
|
|
11 |
This program is distributed in the hope that it will be useful, |
This program is distributed in the hope that it will be useful, |
12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
GNU General Public License for more details. |
GNU General Public License for more details. |
15 |
|
|
16 |
You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
17 |
along with this program; if not, write to the Free Software |
along with this program; if not, write to the Free Software |
18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 |
*/ |
*/ |
20 |
|
|
21 |
#include <stdlib.h> /* malloc realloc free */ |
#include <stdarg.h> /* va_list va_start va_end */ |
22 |
#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */ |
#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */ |
23 |
#include <fcntl.h> /* open */ |
#include <fcntl.h> /* open */ |
24 |
#include <pwd.h> /* getpwuid */ |
#include <pwd.h> /* getpwuid */ |
25 |
|
#include <limits.h> /* PATH_MAX */ |
26 |
|
#include <termios.h> /* tcgetattr tcsetattr */ |
27 |
#include <sys/stat.h> /* stat */ |
#include <sys/stat.h> /* stat */ |
28 |
#include <sys/time.h> /* gettimeofday */ |
#include <sys/time.h> /* gettimeofday */ |
29 |
#include <sys/times.h> /* times */ |
#include <sys/times.h> /* times */ |
30 |
#include "rdesktop.h" |
#include "rdesktop.h" |
31 |
|
|
32 |
|
char title[32] = ""; |
33 |
char username[16]; |
char username[16]; |
34 |
char hostname[16]; |
char hostname[16]; |
35 |
|
char keymapname[16]; |
36 |
|
int keylayout = 0x409; /* Defaults to US keyboard layout */ |
37 |
int width = 800; |
int width = 800; |
38 |
int height = 600; |
int height = 600; |
39 |
int keylayout = 0x409; |
int tcp_port_rdp = TCP_PORT_RDP; |
40 |
BOOL motion = True; |
BOOL bitmap_compression = True; |
41 |
|
BOOL sendmotion = True; |
42 |
BOOL orders = True; |
BOOL orders = True; |
43 |
BOOL licence = True; |
BOOL licence = True; |
44 |
|
BOOL encryption = True; |
45 |
|
BOOL desktop_save = True; |
46 |
|
BOOL fullscreen = False; |
47 |
|
BOOL grab_keyboard = True; |
48 |
|
|
49 |
/* Display usage information */ |
/* Display usage information */ |
50 |
static void |
static void |
51 |
usage(char *program) |
usage(char *program) |
52 |
{ |
{ |
53 |
STATUS("Usage: %s [options] server\n", program); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
54 |
STATUS(" -u: user name\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n"); |
55 |
STATUS(" -d: domain\n"); |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
56 |
STATUS(" -s: shell\n"); |
|
57 |
STATUS(" -c: working directory\n"); |
fprintf(stderr, "Usage: %s [options] server\n", program); |
58 |
STATUS(" -p: password (autologon)\n"); |
fprintf(stderr, " -u: user name\n"); |
59 |
STATUS(" -n: client hostname\n"); |
fprintf(stderr, " -d: domain\n"); |
60 |
STATUS(" -w: desktop width\n"); |
fprintf(stderr, " -s: shell\n"); |
61 |
STATUS(" -h: desktop height\n"); |
fprintf(stderr, " -c: working directory\n"); |
62 |
STATUS(" -k: keyboard layout (hex)\n"); |
fprintf(stderr, " -p: password (- to prompt)\n"); |
63 |
STATUS(" -b: force bitmap updates\n"); |
fprintf(stderr, " -P: askpass-program (autologon)\n"); |
64 |
STATUS(" -m: do not send motion events\n"); |
fprintf(stderr, " -n: client hostname\n"); |
65 |
STATUS(" -l: do not request licence\n\n"); |
fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr etc.)\n"); |
66 |
|
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
67 |
|
fprintf(stderr, " -f: full-screen mode\n"); |
68 |
|
fprintf(stderr, " -b: force bitmap updates\n"); |
69 |
|
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
70 |
|
fprintf(stderr, " -m: do not send motion events\n"); |
71 |
|
fprintf(stderr, " -l: do not request licence\n"); |
72 |
|
fprintf(stderr, " -t: rdp tcp port\n"); |
73 |
|
fprintf(stderr, " -K: keep window manager key bindings\n"); |
74 |
|
fprintf(stderr, " -w: window title\n"); |
75 |
|
} |
76 |
|
|
77 |
|
static BOOL |
78 |
|
read_password(char *password, int size) |
79 |
|
{ |
80 |
|
struct termios tios; |
81 |
|
BOOL ret = False; |
82 |
|
int istty = 0; |
83 |
|
char *p; |
84 |
|
|
85 |
|
if (tcgetattr(STDIN_FILENO, &tios) == 0) |
86 |
|
{ |
87 |
|
fprintf(stderr, "Password: "); |
88 |
|
tios.c_lflag &= ~ECHO; |
89 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
90 |
|
istty = 1; |
91 |
|
} |
92 |
|
|
93 |
|
if (fgets(password, size, stdin) != NULL) |
94 |
|
{ |
95 |
|
ret = True; |
96 |
|
|
97 |
|
/* strip final newline */ |
98 |
|
p = strchr(password, '\n'); |
99 |
|
if (p != NULL) |
100 |
|
*p = 0; |
101 |
|
} |
102 |
|
|
103 |
|
if (istty) |
104 |
|
{ |
105 |
|
tios.c_lflag |= ECHO; |
106 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
107 |
|
fprintf(stderr, "\n"); |
108 |
|
} |
109 |
|
|
110 |
|
return ret; |
111 |
} |
} |
112 |
|
|
113 |
/* Client program */ |
/* Client program */ |
114 |
int |
int |
115 |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
116 |
{ |
{ |
117 |
struct passwd *pw; |
char fullhostname[64]; |
|
char *server; |
|
|
uint32 flags; |
|
118 |
char domain[16]; |
char domain[16]; |
119 |
char password[16]; |
char password[16]; |
120 |
|
char *askpass_result; |
121 |
char shell[32]; |
char shell[32]; |
122 |
char directory[32]; |
char directory[32]; |
123 |
char title[32]; |
BOOL prompt_password; |
124 |
|
struct passwd *pw; |
125 |
|
char *server, *p; |
126 |
|
uint32 flags; |
127 |
int c; |
int c; |
128 |
|
|
|
STATUS("rdesktop: A Remote Desktop Protocol client.\n"); |
|
|
STATUS("Version " VERSION |
|
|
". Copyright (C) 1999-2000 Matt Chapman.\n"); |
|
|
STATUS("See http://www.rdesktop.org/ for more information.\n\n"); |
|
|
|
|
129 |
flags = RDP_LOGON_NORMAL; |
flags = RDP_LOGON_NORMAL; |
130 |
|
prompt_password = False; |
131 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
132 |
|
strcpy(keymapname, "us"); |
133 |
|
|
134 |
while ((c = getopt(argc, argv, "u:d:s:c:p:n:w:h:k:bml?")) != -1) |
while ((c = getopt(argc, argv, "u:d:s:c:p:P:n:k:g:t:fbemlKw:h?")) != -1) |
135 |
{ |
{ |
136 |
switch (c) |
switch (c) |
137 |
{ |
{ |
138 |
case 'u': |
case 'u': |
139 |
strncpy(username, optarg, sizeof(username)); |
STRNCPY(username, optarg, sizeof(username)); |
140 |
break; |
break; |
141 |
|
|
142 |
case 'd': |
case 'd': |
143 |
strncpy(domain, optarg, sizeof(domain)); |
STRNCPY(domain, optarg, sizeof(domain)); |
|
break; |
|
|
|
|
|
case 'p': |
|
|
flags |= RDP_LOGON_AUTO; |
|
|
strncpy(password, optarg, sizeof(password)); |
|
144 |
break; |
break; |
145 |
|
|
146 |
case 's': |
case 's': |
147 |
strncpy(shell, optarg, sizeof(shell)); |
STRNCPY(shell, optarg, sizeof(shell)); |
148 |
break; |
break; |
149 |
|
|
150 |
case 'c': |
case 'c': |
151 |
strncpy(directory, optarg, sizeof(directory)); |
STRNCPY(directory, optarg, sizeof(directory)); |
152 |
break; |
break; |
153 |
|
|
154 |
case 'n': |
case 'p': |
155 |
strncpy(hostname, optarg, sizeof(hostname)); |
if ((optarg[0] == '-') && (optarg[1] == 0)) |
156 |
|
{ |
157 |
|
prompt_password = True; |
158 |
|
break; |
159 |
|
} |
160 |
|
|
161 |
|
STRNCPY(password, optarg, sizeof(password)); |
162 |
|
flags |= RDP_LOGON_AUTO; |
163 |
|
|
164 |
|
/* try to overwrite argument so it won't appear in ps */ |
165 |
|
p = optarg; |
166 |
|
while (*p) |
167 |
|
*(p++) = 'X'; |
168 |
break; |
break; |
169 |
|
|
170 |
case 'w': |
case 'P': |
171 |
width = strtol(optarg, NULL, 10); |
askpass_result = askpass(optarg, "Enter password"); |
172 |
|
if (askpass_result == NULL) |
173 |
|
exit(1); |
174 |
|
|
175 |
|
STRNCPY(password, askpass_result, sizeof(password)); |
176 |
|
free(askpass_result); |
177 |
|
flags |= RDP_LOGON_AUTO; |
178 |
break; |
break; |
179 |
|
|
180 |
case 'h': |
case 'n': |
181 |
height = strtol(optarg, NULL, 10); |
STRNCPY(hostname, optarg, sizeof(hostname)); |
182 |
break; |
break; |
183 |
|
|
184 |
case 'k': |
case 'k': |
185 |
keylayout = strtol(optarg, NULL, 16); |
STRNCPY(keymapname, optarg, sizeof(keymapname)); |
186 |
break; |
break; |
187 |
|
|
188 |
case 'm': |
case 'g': |
189 |
motion = False; |
width = strtol(optarg, &p, 10); |
190 |
|
if (*p == 'x') |
191 |
|
height = strtol(p + 1, NULL, 10); |
192 |
|
|
193 |
|
if ((width == 0) || (height == 0)) |
194 |
|
{ |
195 |
|
error("invalid geometry\n"); |
196 |
|
return 1; |
197 |
|
} |
198 |
|
break; |
199 |
|
|
200 |
|
case 'f': |
201 |
|
fullscreen = True; |
202 |
break; |
break; |
203 |
|
|
204 |
case 'b': |
case 'b': |
205 |
orders = False; |
orders = False; |
206 |
break; |
break; |
207 |
|
|
208 |
|
case 'e': |
209 |
|
encryption = False; |
210 |
|
break; |
211 |
|
|
212 |
|
case 'm': |
213 |
|
sendmotion = False; |
214 |
|
break; |
215 |
|
|
216 |
case 'l': |
case 'l': |
217 |
licence = False; |
licence = False; |
218 |
break; |
break; |
219 |
|
|
220 |
|
case 't': |
221 |
|
tcp_port_rdp = strtol(optarg, NULL, 10); |
222 |
|
break; |
223 |
|
|
224 |
|
case 'K': |
225 |
|
grab_keyboard = False; |
226 |
|
break; |
227 |
|
|
228 |
|
case 'w': |
229 |
|
strncpy(title, optarg, sizeof(title)); |
230 |
|
break; |
231 |
|
|
232 |
|
case 'h': |
233 |
case '?': |
case '?': |
234 |
default: |
default: |
235 |
usage(argv[0]); |
usage(argv[0]); |
250 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
251 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
252 |
{ |
{ |
253 |
STATUS("Could not determine user name.\n"); |
error("could not determine username, use -u\n"); |
254 |
return 1; |
return 1; |
255 |
} |
} |
256 |
|
|
257 |
strncpy(username, pw->pw_name, sizeof(username)); |
STRNCPY(username, pw->pw_name, sizeof(username)); |
258 |
} |
} |
259 |
|
|
260 |
if (hostname[0] == 0) |
if (hostname[0] == 0) |
261 |
{ |
{ |
262 |
if (gethostname(hostname, sizeof(hostname)) == -1) |
if (gethostname(fullhostname, sizeof(fullhostname)) == -1) |
263 |
{ |
{ |
264 |
STATUS("Could not determine host name.\n"); |
error("could not determine local hostname, use -n\n"); |
265 |
return 1; |
return 1; |
266 |
} |
} |
267 |
|
|
268 |
|
p = strchr(fullhostname, '.'); |
269 |
|
if (p != NULL) |
270 |
|
*p = 0; |
271 |
|
|
272 |
|
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
273 |
} |
} |
274 |
|
|
275 |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
if (prompt_password && read_password(password, sizeof(password))) |
276 |
|
flags |= RDP_LOGON_AUTO; |
277 |
|
|
278 |
|
if (title[0] == 0) |
279 |
|
{ |
280 |
|
strcpy(title, "rdesktop - "); |
281 |
|
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
282 |
|
} |
283 |
|
|
284 |
|
if (!ui_init()) |
285 |
return 1; |
return 1; |
286 |
|
|
287 |
STATUS("Connection successful.\n"); |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
288 |
|
return 1; |
289 |
|
|
290 |
strcpy(title, "rdesktop - "); |
DEBUG(("Connection successful.\n")); |
291 |
strncat(title, server, sizeof(title)); |
memset(password, 0, sizeof(password)); |
292 |
|
|
293 |
if (ui_create_window(title)) |
if (ui_create_window()) |
294 |
{ |
{ |
295 |
rdp_main_loop(); |
rdp_main_loop(); |
296 |
ui_destroy_window(); |
ui_destroy_window(); |
297 |
} |
} |
298 |
|
|
299 |
|
DEBUG(("Disconnecting...\n")); |
300 |
rdp_disconnect(); |
rdp_disconnect(); |
301 |
|
ui_deinit(); |
302 |
return 0; |
return 0; |
303 |
} |
} |
304 |
|
|
305 |
/* Generate a 32-byte random for the secure transport code. */ |
/* Generate a 32-byte random for the secure transport code. */ |
306 |
void |
void |
307 |
generate_random(uint8 *random) |
generate_random(uint8 * random) |
308 |
{ |
{ |
309 |
struct stat st; |
struct stat st; |
310 |
struct tms tmsbuf; |
struct tms tmsbuf; |
312 |
int fd; |
int fd; |
313 |
|
|
314 |
/* If we have a kernel random device, use it. */ |
/* If we have a kernel random device, use it. */ |
315 |
if ((fd = open("/dev/urandom", O_RDONLY)) != -1) |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
316 |
|
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
317 |
{ |
{ |
318 |
read(fd, random, 32); |
read(fd, random, 32); |
319 |
close(fd); |
close(fd); |
338 |
void *mem = malloc(size); |
void *mem = malloc(size); |
339 |
if (mem == NULL) |
if (mem == NULL) |
340 |
{ |
{ |
341 |
ERROR("xmalloc %d\n", size); |
error("xmalloc %d\n", size); |
342 |
exit(1); |
exit(1); |
343 |
} |
} |
344 |
return mem; |
return mem; |
351 |
void *mem = realloc(oldmem, size); |
void *mem = realloc(oldmem, size); |
352 |
if (mem == NULL) |
if (mem == NULL) |
353 |
{ |
{ |
354 |
ERROR("xrealloc %d\n", size); |
error("xrealloc %d\n", size); |
355 |
exit(1); |
exit(1); |
356 |
} |
} |
357 |
return mem; |
return mem; |
364 |
free(mem); |
free(mem); |
365 |
} |
} |
366 |
|
|
367 |
/* Produce a hex dump */ |
/* report an error */ |
368 |
|
void |
369 |
|
error(char *format, ...) |
370 |
|
{ |
371 |
|
va_list ap; |
372 |
|
|
373 |
|
fprintf(stderr, "ERROR: "); |
374 |
|
|
375 |
|
va_start(ap, format); |
376 |
|
vfprintf(stderr, format, ap); |
377 |
|
va_end(ap); |
378 |
|
} |
379 |
|
|
380 |
|
/* report an unimplemented protocol feature */ |
381 |
|
void |
382 |
|
unimpl(char *format, ...) |
383 |
|
{ |
384 |
|
va_list ap; |
385 |
|
|
386 |
|
fprintf(stderr, "NOT IMPLEMENTED: "); |
387 |
|
|
388 |
|
va_start(ap, format); |
389 |
|
vfprintf(stderr, format, ap); |
390 |
|
va_end(ap); |
391 |
|
} |
392 |
|
|
393 |
|
/* produce a hex dump */ |
394 |
void |
void |
395 |
hexdump(unsigned char *p, unsigned int len) |
hexdump(unsigned char *p, unsigned int len) |
396 |
{ |
{ |
400 |
|
|
401 |
while (offset < len) |
while (offset < len) |
402 |
{ |
{ |
403 |
STATUS("%04x ", offset); |
printf("%04x ", offset); |
404 |
thisline = len - offset; |
thisline = len - offset; |
405 |
if (thisline > 16) |
if (thisline > 16) |
406 |
thisline = 16; |
thisline = 16; |
407 |
|
|
408 |
for (i = 0; i < thisline; i++) |
for (i = 0; i < thisline; i++) |
409 |
STATUS("%02x ", line[i]) for (; i < 16; i++) |
printf("%02x ", line[i]); |
410 |
STATUS(" "); |
|
411 |
|
for (; i < 16; i++) |
412 |
|
printf(" "); |
413 |
|
|
414 |
for (i = 0; i < thisline; i++) |
for (i = 0; i < thisline; i++) |
415 |
STATUS("%c", |
printf("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.'); |
|
(line[i] >= 0x20 |
|
|
&& line[i] < 0x7f) ? line[i] : '.'); |
|
416 |
|
|
417 |
STATUS("\n"); |
printf("\n"); |
418 |
offset += thisline; |
offset += thisline; |
419 |
line += thisline; |
line += thisline; |
420 |
} |
} |
421 |
} |
} |
422 |
|
|
423 |
|
#ifdef SAVE_LICENCE |
424 |
|
int |
425 |
|
load_licence(unsigned char **data) |
426 |
|
{ |
427 |
|
char path[PATH_MAX]; |
428 |
|
char *home; |
429 |
|
struct stat st; |
430 |
|
int fd; |
431 |
|
|
432 |
|
home = getenv("HOME"); |
433 |
|
if (home == NULL) |
434 |
|
return -1; |
435 |
|
|
436 |
|
STRNCPY(path, home, sizeof(path)); |
437 |
|
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
438 |
|
|
439 |
|
fd = open(path, O_RDONLY); |
440 |
|
if (fd == -1) |
441 |
|
return -1; |
442 |
|
|
443 |
|
if (fstat(fd, &st)) |
444 |
|
return -1; |
445 |
|
|
446 |
|
*data = xmalloc(st.st_size); |
447 |
|
return read(fd, *data, st.st_size); |
448 |
|
} |
449 |
|
|
450 |
|
void |
451 |
|
save_licence(unsigned char *data, int length) |
452 |
|
{ |
453 |
|
char path[PATH_MAX]; |
454 |
|
char *home; |
455 |
|
int fd; |
456 |
|
|
457 |
|
home = getenv("HOME"); |
458 |
|
if (home == NULL) |
459 |
|
return; |
460 |
|
|
461 |
|
STRNCPY(path, home, sizeof(path)); |
462 |
|
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
463 |
|
mkdir(path, 0700); |
464 |
|
|
465 |
|
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
466 |
|
|
467 |
|
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
468 |
|
if (fd == -1) |
469 |
|
{ |
470 |
|
perror("open"); |
471 |
|
return; |
472 |
|
} |
473 |
|
|
474 |
|
write(fd, data, length); |
475 |
|
close(fd); |
476 |
|
} |
477 |
|
#endif |