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 1999-2001 |
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 <stdlib.h> /* malloc realloc free */ |
22 |
#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */ |
#include <stdarg.h> /* va_list va_start va_end */ |
23 |
#include <fcntl.h> /* open */ |
#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */ |
24 |
#include <pwd.h> /* getpwuid */ |
#include <fcntl.h> /* open */ |
25 |
#include <sys/stat.h> /* stat */ |
#include <pwd.h> /* getpwuid */ |
26 |
#include <sys/time.h> /* gettimeofday */ |
#include <limits.h> /* PATH_MAX */ |
27 |
#include <sys/times.h> /* times */ |
#include <sys/stat.h> /* stat */ |
28 |
|
#include <sys/time.h> /* gettimeofday */ |
29 |
|
#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 |
int width = 800; |
char keymapname[16]; |
36 |
int height = 600; |
int keylayout = 0x409; /* Defaults to US keyboard layout */ |
37 |
int keylayout = 0x409; |
int width; |
38 |
BOOL motion = False; |
int height; |
39 |
|
int tcp_port_rdp = TCP_PORT_RDP; |
40 |
|
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 usage(char *program) |
static void |
51 |
|
usage(char *program) |
52 |
{ |
{ |
53 |
STATUS("Usage: %s [options] server\n", program); |
fprintf(stderr, "Usage: %s [options] server\n", program); |
54 |
STATUS(" -u: user name\n"); |
fprintf(stderr, " -u: user name\n"); |
55 |
STATUS(" -n: client hostname\n"); |
fprintf(stderr, " -d: domain\n"); |
56 |
STATUS(" -w: desktop width\n"); |
fprintf(stderr, " -s: shell\n"); |
57 |
STATUS(" -h: desktop height\n"); |
fprintf(stderr, " -c: working directory\n"); |
58 |
STATUS(" -k: keyboard layout (hex)\n"); |
fprintf(stderr, " -p: password (autologon)\n"); |
59 |
STATUS(" -m: send motion events\n"); |
fprintf(stderr, " -P: askpass-program (autologon)\n"); |
60 |
STATUS(" -b: force bitmap updates\n"); |
fprintf(stderr, " -n: client hostname\n"); |
61 |
STATUS(" -l: do not request licence\n\n"); |
fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr etc.)\n"); |
62 |
|
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
63 |
|
fprintf(stderr, " -f: full-screen mode\n"); |
64 |
|
fprintf(stderr, " -b: force bitmap updates\n"); |
65 |
|
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
66 |
|
fprintf(stderr, " -m: do not send motion events\n"); |
67 |
|
fprintf(stderr, " -l: do not request licence\n"); |
68 |
|
fprintf(stderr, " -t: rdp tcp port\n"); |
69 |
|
fprintf(stderr, " -K: keep window manager key bindings\n"); |
70 |
|
fprintf(stderr, " -w: window title\n"); |
71 |
} |
} |
72 |
|
|
73 |
/* Client program */ |
/* Client program */ |
74 |
int main(int argc, char *argv[]) |
int |
75 |
|
main(int argc, char *argv[]) |
76 |
{ |
{ |
77 |
|
char fullhostname[64]; |
78 |
|
char domain[16]; |
79 |
|
char password[16]; |
80 |
|
char *askpass_result; |
81 |
|
char shell[32]; |
82 |
|
char directory[32]; |
83 |
struct passwd *pw; |
struct passwd *pw; |
84 |
char *server; |
char *server, *p; |
85 |
char title[32]; |
uint32 flags; |
86 |
int c; |
int c; |
87 |
|
|
88 |
STATUS("rdesktop: A Remote Desktop Protocol client.\n"); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
89 |
STATUS("Version "VERSION". Copyright (C) 1999-2000 Matt Chapman.\n\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2001 Matt Chapman.\n"); |
90 |
|
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
91 |
|
|
92 |
|
flags = RDP_LOGON_NORMAL; |
93 |
|
domain[0] = password[0] = shell[0] = directory[0] = 0; |
94 |
|
strcpy(keymapname, "us"); |
95 |
|
|
96 |
while ((c = getopt(argc, argv, "u:n:w:h:k:mbl?")) != -1) |
while ((c = getopt(argc, argv, "u:d:s:c:p:P:n:k:g:t:fbemlKw:h?")) != -1) |
97 |
{ |
{ |
98 |
switch (c) |
switch (c) |
99 |
{ |
{ |
100 |
case 'u': |
case 'u': |
101 |
strncpy(username, optarg, sizeof(username)); |
STRNCPY(username, optarg, sizeof(username)); |
102 |
break; |
break; |
103 |
|
|
104 |
case 'n': |
case 'd': |
105 |
strncpy(hostname, optarg, sizeof(hostname)); |
STRNCPY(domain, optarg, sizeof(domain)); |
106 |
break; |
break; |
107 |
|
|
108 |
case 'w': |
case 's': |
109 |
width = strtol(optarg, NULL, 10); |
STRNCPY(shell, optarg, sizeof(shell)); |
110 |
break; |
break; |
111 |
|
|
112 |
case 'h': |
case 'c': |
113 |
height = strtol(optarg, NULL, 10); |
STRNCPY(directory, optarg, sizeof(directory)); |
114 |
|
break; |
115 |
|
|
116 |
|
case 'p': |
117 |
|
STRNCPY(password, optarg, sizeof(password)); |
118 |
|
flags |= RDP_LOGON_AUTO; |
119 |
|
break; |
120 |
|
|
121 |
|
case 'P': |
122 |
|
askpass_result = askpass(optarg, "Enter password"); |
123 |
|
if (askpass_result == NULL) |
124 |
|
exit(1); |
125 |
|
|
126 |
|
STRNCPY(password, askpass_result, sizeof(password)); |
127 |
|
free(askpass_result); |
128 |
|
flags |= RDP_LOGON_AUTO; |
129 |
|
break; |
130 |
|
|
131 |
|
case 'n': |
132 |
|
STRNCPY(hostname, optarg, sizeof(hostname)); |
133 |
break; |
break; |
134 |
|
|
135 |
case 'k': |
case 'k': |
136 |
keylayout = strtol(optarg, NULL, 16); |
STRNCPY(keymapname, optarg, sizeof(keymapname)); |
137 |
break; |
break; |
138 |
|
|
139 |
case 'm': |
case 'g': |
140 |
motion = True; |
width = strtol(optarg, &p, 10); |
141 |
|
if (*p == 'x') |
142 |
|
height = strtol(p + 1, NULL, 10); |
143 |
|
|
144 |
|
if ((width == 0) || (height == 0)) |
145 |
|
{ |
146 |
|
error("invalid geometry\n"); |
147 |
|
return 1; |
148 |
|
} |
149 |
|
break; |
150 |
|
|
151 |
|
case 'f': |
152 |
|
fullscreen = True; |
153 |
break; |
break; |
154 |
|
|
155 |
case 'b': |
case 'b': |
156 |
orders = False; |
orders = False; |
157 |
break; |
break; |
158 |
|
|
159 |
|
case 'e': |
160 |
|
encryption = False; |
161 |
|
break; |
162 |
|
|
163 |
|
case 'm': |
164 |
|
sendmotion = False; |
165 |
|
break; |
166 |
|
|
167 |
case 'l': |
case 'l': |
168 |
licence = False; |
licence = False; |
169 |
break; |
break; |
170 |
|
|
171 |
|
case 't': |
172 |
|
tcp_port_rdp = strtol(optarg, NULL, 10); |
173 |
|
break; |
174 |
|
|
175 |
|
case 'K': |
176 |
|
grab_keyboard = False; |
177 |
|
break; |
178 |
|
|
179 |
|
case 'w': |
180 |
|
strncpy(title, optarg, sizeof(title)); |
181 |
|
break; |
182 |
|
|
183 |
|
case 'h': |
184 |
case '?': |
case '?': |
185 |
default: |
default: |
186 |
usage(argv[0]); |
usage(argv[0]); |
201 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
202 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
203 |
{ |
{ |
204 |
STATUS("Could not determine user name.\n"); |
error("could not determine username, use -u\n"); |
205 |
return 1; |
return 1; |
206 |
} |
} |
207 |
|
|
208 |
strncpy(username, pw->pw_name, sizeof(username)); |
STRNCPY(username, pw->pw_name, sizeof(username)); |
209 |
} |
} |
210 |
|
|
211 |
if (hostname[0] == 0) |
if (hostname[0] == 0) |
212 |
{ |
{ |
213 |
if (gethostname(hostname, sizeof(hostname)) == -1) |
if (gethostname(fullhostname, sizeof(fullhostname)) == -1) |
214 |
{ |
{ |
215 |
STATUS("Could not determine host name.\n"); |
error("could not determine local hostname, use -n\n"); |
216 |
return 1; |
return 1; |
217 |
} |
} |
218 |
|
|
219 |
|
p = strchr(fullhostname, '.'); |
220 |
|
if (p != NULL) |
221 |
|
*p = 0; |
222 |
|
|
223 |
|
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
224 |
|
} |
225 |
|
|
226 |
|
if (!strcmp(password, "-")) |
227 |
|
{ |
228 |
|
p = getpass("Password: "); |
229 |
|
if (p == NULL) |
230 |
|
{ |
231 |
|
error("failed to read password\n"); |
232 |
|
return 0; |
233 |
|
} |
234 |
|
STRNCPY(password, p, sizeof(password)); |
235 |
|
} |
236 |
|
|
237 |
|
if ((width == 0) || (height == 0)) |
238 |
|
{ |
239 |
|
width = 800; |
240 |
|
height = 600; |
241 |
|
} |
242 |
|
else |
243 |
|
{ |
244 |
|
/* make sure width is a multiple of 4 */ |
245 |
|
width = (width + 3) & ~3; |
246 |
|
} |
247 |
|
|
248 |
|
if (!strlen(title)) |
249 |
|
{ |
250 |
|
strcpy(title, "rdesktop - "); |
251 |
|
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
252 |
} |
} |
253 |
|
|
254 |
if (!rdp_connect(server)) |
xkeymap_init1(); |
255 |
|
if (!ui_init()) |
256 |
return 1; |
return 1; |
257 |
|
|
258 |
STATUS("Connection successful.\n"); |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
259 |
|
return 1; |
260 |
|
|
261 |
strcpy(title, "rdesktop - "); |
fprintf(stderr, "Connection successful.\n"); |
|
strncat(title, server, sizeof(title)); |
|
262 |
|
|
263 |
if (ui_create_window(title)) |
if (ui_create_window()) |
264 |
{ |
{ |
265 |
rdp_main_loop(); |
rdp_main_loop(); |
266 |
ui_destroy_window(); |
ui_destroy_window(); |
267 |
} |
} |
268 |
|
|
269 |
|
fprintf(stderr, "Disconnecting...\n"); |
270 |
rdp_disconnect(); |
rdp_disconnect(); |
271 |
return 0; |
return 0; |
272 |
} |
} |
273 |
|
|
274 |
/* Generate a 32-byte random for the secure transport code. */ |
/* Generate a 32-byte random for the secure transport code. */ |
275 |
void generate_random(uint8 *random) |
void |
276 |
|
generate_random(uint8 * random) |
277 |
{ |
{ |
278 |
struct stat st; |
struct stat st; |
279 |
uint32 *r = (uint32 *)random; |
struct tms tmsbuf; |
280 |
|
uint32 *r = (uint32 *) random; |
281 |
int fd; |
int fd; |
282 |
|
|
283 |
/* If we have a kernel random device, use it. */ |
/* If we have a kernel random device, use it. */ |
284 |
if ((fd = open("/dev/urandom", O_RDONLY)) != -1) |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
285 |
|
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
286 |
{ |
{ |
287 |
read(fd, random, 32); |
read(fd, random, 32); |
288 |
close(fd); |
close(fd); |
292 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
293 |
r[0] = (getpid()) | (getppid() << 16); |
r[0] = (getpid()) | (getppid() << 16); |
294 |
r[1] = (getuid()) | (getgid() << 16); |
r[1] = (getuid()) | (getgid() << 16); |
295 |
r[2] = times(NULL); /* system uptime (clocks) */ |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
296 |
gettimeofday((struct timeval *)&r[3], NULL); /* sec and usec */ |
gettimeofday((struct timeval *) &r[3], NULL); /* sec and usec */ |
297 |
stat("/tmp", &st); |
stat("/tmp", &st); |
298 |
r[5] = st.st_atime; |
r[5] = st.st_atime; |
299 |
r[6] = st.st_mtime; |
r[6] = st.st_mtime; |
301 |
} |
} |
302 |
|
|
303 |
/* malloc; exit if out of memory */ |
/* malloc; exit if out of memory */ |
304 |
void *xmalloc(int size) |
void * |
305 |
|
xmalloc(int size) |
306 |
{ |
{ |
307 |
void *mem = malloc(size); |
void *mem = malloc(size); |
308 |
if (mem == NULL) |
if (mem == NULL) |
309 |
{ |
{ |
310 |
ERROR("xmalloc %d\n", size); |
error("xmalloc %d\n", size); |
311 |
exit(1); |
exit(1); |
312 |
} |
} |
313 |
return mem; |
return mem; |
314 |
} |
} |
315 |
|
|
316 |
/* realloc; exit if out of memory */ |
/* realloc; exit if out of memory */ |
317 |
void *xrealloc(void *oldmem, int size) |
void * |
318 |
|
xrealloc(void *oldmem, int size) |
319 |
{ |
{ |
320 |
void *mem = realloc(oldmem, size); |
void *mem = realloc(oldmem, size); |
321 |
if (mem == NULL) |
if (mem == NULL) |
322 |
{ |
{ |
323 |
ERROR("xrealloc %d\n", size); |
error("xrealloc %d\n", size); |
324 |
exit(1); |
exit(1); |
325 |
} |
} |
326 |
return mem; |
return mem; |
327 |
} |
} |
328 |
|
|
329 |
/* free */ |
/* free */ |
330 |
void xfree(void *mem) |
void |
331 |
|
xfree(void *mem) |
332 |
{ |
{ |
333 |
free(mem); |
free(mem); |
334 |
} |
} |
335 |
|
|
336 |
/* Produce a hex dump */ |
/* report an error */ |
337 |
void hexdump(unsigned char *p, unsigned int len) |
void |
338 |
|
error(char *format, ...) |
339 |
|
{ |
340 |
|
va_list ap; |
341 |
|
|
342 |
|
fprintf(stderr, "ERROR: "); |
343 |
|
|
344 |
|
va_start(ap, format); |
345 |
|
vfprintf(stderr, format, ap); |
346 |
|
va_end(ap); |
347 |
|
} |
348 |
|
|
349 |
|
/* report an unimplemented protocol feature */ |
350 |
|
void |
351 |
|
unimpl(char *format, ...) |
352 |
|
{ |
353 |
|
va_list ap; |
354 |
|
|
355 |
|
fprintf(stderr, "NOT IMPLEMENTED: "); |
356 |
|
|
357 |
|
va_start(ap, format); |
358 |
|
vfprintf(stderr, format, ap); |
359 |
|
va_end(ap); |
360 |
|
} |
361 |
|
|
362 |
|
/* produce a hex dump */ |
363 |
|
void |
364 |
|
hexdump(unsigned char *p, unsigned int len) |
365 |
{ |
{ |
366 |
unsigned char *line = p; |
unsigned char *line = p; |
367 |
unsigned int thisline, offset = 0; |
unsigned int thisline, offset = 0; |
369 |
|
|
370 |
while (offset < len) |
while (offset < len) |
371 |
{ |
{ |
372 |
STATUS("%04x ", offset); |
fprintf(stderr, "%04x ", offset); |
373 |
thisline = len - offset; |
thisline = len - offset; |
374 |
if (thisline > 16) |
if (thisline > 16) |
375 |
thisline = 16; |
thisline = 16; |
376 |
|
|
377 |
for (i = 0; i < thisline; i++) |
for (i = 0; i < thisline; i++) |
378 |
STATUS("%02x ", line[i]) |
fprintf(stderr, "%02x ", line[i]); |
379 |
|
|
380 |
for (; i < 16; i++) |
for (; i < 16; i++) |
381 |
STATUS(" "); |
fprintf(stderr, " "); |
382 |
|
|
383 |
for (i = 0; i < thisline; i++) |
for (i = 0; i < thisline; i++) |
384 |
STATUS("%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.'); |
fprintf(stderr, "%c", (line[i] >= 0x20 && line[i] < 0x7f) ? line[i] : '.'); |
385 |
|
|
386 |
STATUS("\n"); |
fprintf(stderr, "\n"); |
387 |
offset += thisline; |
offset += thisline; |
388 |
line += thisline; |
line += thisline; |
389 |
} |
} |
390 |
} |
} |
391 |
|
|
392 |
|
int |
393 |
|
load_licence(unsigned char **data) |
394 |
|
{ |
395 |
|
char path[PATH_MAX]; |
396 |
|
char *home; |
397 |
|
struct stat st; |
398 |
|
int fd; |
399 |
|
|
400 |
|
home = getenv("HOME"); |
401 |
|
if (home == NULL) |
402 |
|
return -1; |
403 |
|
|
404 |
|
STRNCPY(path, home, sizeof(path)); |
405 |
|
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
406 |
|
|
407 |
|
fd = open(path, O_RDONLY); |
408 |
|
if (fd == -1) |
409 |
|
return -1; |
410 |
|
|
411 |
|
if (fstat(fd, &st)) |
412 |
|
return -1; |
413 |
|
|
414 |
|
*data = xmalloc(st.st_size); |
415 |
|
return read(fd, *data, st.st_size); |
416 |
|
} |
417 |
|
|
418 |
|
void |
419 |
|
save_licence(unsigned char *data, int length) |
420 |
|
{ |
421 |
|
char path[PATH_MAX]; |
422 |
|
char *home; |
423 |
|
int fd; |
424 |
|
|
425 |
|
home = getenv("HOME"); |
426 |
|
if (home == NULL) |
427 |
|
return; |
428 |
|
|
429 |
|
STRNCPY(path, home, sizeof(path)); |
430 |
|
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
431 |
|
mkdir(path, 0700); |
432 |
|
|
433 |
|
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
434 |
|
|
435 |
|
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
436 |
|
if (fd == -1) |
437 |
|
{ |
438 |
|
perror("open"); |
439 |
|
return; |
440 |
|
} |
441 |
|
|
442 |
|
write(fd, data, length); |
443 |
|
close(fd); |
444 |
|
} |