1 |
/* |
/* -*- c-basic-offset: 8 -*- |
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 1999-2001 |
Copyright (C) Matthew Chapman 1999-2003 |
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 |
|
|
|
#include <stdlib.h> /* malloc realloc free */ |
|
21 |
#include <stdarg.h> /* va_list va_start va_end */ |
#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 */ |
#include <termios.h> /* tcgetattr tcsetattr */ |
26 |
#include <sys/stat.h> /* stat */ |
#include <sys/stat.h> /* stat */ |
27 |
#include <sys/time.h> /* gettimeofday */ |
#include <sys/time.h> /* gettimeofday */ |
28 |
#include <sys/times.h> /* times */ |
#include <sys/times.h> /* times */ |
29 |
|
#include <errno.h> |
30 |
#include "rdesktop.h" |
#include "rdesktop.h" |
31 |
|
|
32 |
char username[16]; |
#ifdef EGD_SOCKET |
33 |
|
#include <sys/socket.h> /* socket connect */ |
34 |
|
#include <sys/un.h> /* sockaddr_un */ |
35 |
|
#endif |
36 |
|
|
37 |
|
#ifdef WITH_OPENSSL |
38 |
|
#include <openssl/md5.h> |
39 |
|
#else |
40 |
|
#include "crypto/md5.h" |
41 |
|
#endif |
42 |
|
|
43 |
|
char g_title[32] = ""; |
44 |
|
char g_username[16]; |
45 |
char hostname[16]; |
char hostname[16]; |
46 |
char keymapname[16]; |
char keymapname[16]; |
47 |
int keylayout = 0x409; /* Defaults to US keyboard layout */ |
int keylayout = 0x409; /* Defaults to US keyboard layout */ |
48 |
int width; |
int g_width = 800; /* If width or height are reset to zero, the geometry will |
49 |
int height; |
be fetched from _NET_WORKAREA */ |
50 |
|
int g_height = 600; |
51 |
int tcp_port_rdp = TCP_PORT_RDP; |
int tcp_port_rdp = TCP_PORT_RDP; |
52 |
BOOL bitmap_compression = True; |
int g_server_bpp = 8; |
53 |
BOOL sendmotion = True; |
int g_win_button_size = 0; /* If zero, disable single app mode */ |
54 |
BOOL orders = True; |
BOOL g_bitmap_compression = True; |
55 |
BOOL licence = True; |
BOOL g_sendmotion = True; |
56 |
BOOL encryption = True; |
BOOL g_orders = True; |
57 |
BOOL desktop_save = True; |
BOOL g_encryption = True; |
58 |
BOOL fullscreen = False; |
BOOL packet_encryption = True; |
59 |
BOOL grab_keyboard = True; |
BOOL g_desktop_save = True; |
60 |
|
BOOL g_fullscreen = False; |
61 |
|
BOOL g_grab_keyboard = True; |
62 |
|
BOOL g_hide_decorations = False; |
63 |
|
BOOL g_use_rdp5 = True; |
64 |
|
extern BOOL g_owncolmap; |
65 |
|
|
66 |
|
#ifdef RDP2VNC |
67 |
|
extern int rfb_port; |
68 |
|
extern int defer_time; |
69 |
|
void |
70 |
|
rdp2vnc_connect(char *server, uint32 flags, char *domain, char *password, |
71 |
|
char *shell, char *directory); |
72 |
|
#endif |
73 |
/* Display usage information */ |
/* Display usage information */ |
74 |
static void |
static void |
75 |
usage(char *program) |
usage(char *program) |
76 |
{ |
{ |
77 |
printf("Usage: %s [options] server\n", program); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
78 |
printf(" -u: user name\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n"); |
79 |
printf(" -d: domain\n"); |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
80 |
printf(" -s: shell\n"); |
|
81 |
printf(" -c: working directory\n"); |
fprintf(stderr, "Usage: %s [options] server[:port]\n", program); |
82 |
printf(" -p: password (autologon)\n"); |
#ifdef RDP2VNC |
83 |
printf(" -n: client hostname\n"); |
fprintf(stderr, " -V: vnc port\n"); |
84 |
printf(" -k: keyboard layout on terminal server (us,sv,gr etc.)\n"); |
fprintf(stderr, " -Q: defer time (ms)\n"); |
85 |
printf(" -g: desktop geometry (WxH)\n"); |
#endif |
86 |
printf(" -f: full-screen mode\n"); |
fprintf(stderr, " -u: user name\n"); |
87 |
printf(" -b: force bitmap updates\n"); |
fprintf(stderr, " -d: domain\n"); |
88 |
printf(" -e: disable encryption (French TS)\n"); |
fprintf(stderr, " -s: shell\n"); |
89 |
printf(" -m: do not send motion events\n"); |
fprintf(stderr, " -S: caption button size (single application mode)\n"); |
90 |
printf(" -l: do not request licence\n"); |
fprintf(stderr, " -c: working directory\n"); |
91 |
printf(" -t: rdp tcp port\n"); |
fprintf(stderr, " -p: password (- to prompt)\n"); |
92 |
printf(" -K: keep window manager key bindings\n"); |
fprintf(stderr, " -n: client hostname\n"); |
93 |
|
fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr,etc.)\n"); |
94 |
|
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
95 |
|
fprintf(stderr, " -f: full-screen mode\n"); |
96 |
|
fprintf(stderr, " -b: force bitmap updates\n"); |
97 |
|
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
98 |
|
fprintf(stderr, " -E: disable encryption from client to server\n"); |
99 |
|
fprintf(stderr, " -m: do not send motion events\n"); |
100 |
|
fprintf(stderr, " -C: use private colour map\n"); |
101 |
|
fprintf(stderr, " -K: keep window manager key bindings\n"); |
102 |
|
fprintf(stderr, " -T: window title\n"); |
103 |
|
fprintf(stderr, " -D: hide window manager decorations\n"); |
104 |
|
fprintf(stderr, " -a: server bpp\n"); |
105 |
|
fprintf(stderr, " -4: Use RDP version 4\n"); |
106 |
|
fprintf(stderr, " -5: Use RDP version 5 (default)\n"); |
107 |
|
} |
108 |
|
|
109 |
|
static BOOL |
110 |
|
read_password(char *password, int size) |
111 |
|
{ |
112 |
|
struct termios tios; |
113 |
|
BOOL ret = False; |
114 |
|
int istty = 0; |
115 |
|
char *p; |
116 |
|
|
117 |
|
if (tcgetattr(STDIN_FILENO, &tios) == 0) |
118 |
|
{ |
119 |
|
fprintf(stderr, "Password: "); |
120 |
|
tios.c_lflag &= ~ECHO; |
121 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
122 |
|
istty = 1; |
123 |
|
} |
124 |
|
|
125 |
|
if (fgets(password, size, stdin) != NULL) |
126 |
|
{ |
127 |
|
ret = True; |
128 |
|
|
129 |
|
/* strip final newline */ |
130 |
|
p = strchr(password, '\n'); |
131 |
|
if (p != NULL) |
132 |
|
*p = 0; |
133 |
|
} |
134 |
|
|
135 |
|
if (istty) |
136 |
|
{ |
137 |
|
tios.c_lflag |= ECHO; |
138 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
139 |
|
fprintf(stderr, "\n"); |
140 |
|
} |
141 |
|
|
142 |
|
return ret; |
143 |
|
} |
144 |
|
|
145 |
|
static void |
146 |
|
parse_server_and_port(char *server) |
147 |
|
{ |
148 |
|
char *p; |
149 |
|
#ifdef IPv6 |
150 |
|
int addr_colons; |
151 |
|
#endif |
152 |
|
|
153 |
|
#ifdef IPv6 |
154 |
|
p = server; |
155 |
|
addr_colons = 0; |
156 |
|
while (*p) |
157 |
|
if (*p++ == ':') |
158 |
|
addr_colons++; |
159 |
|
if (addr_colons >= 2) |
160 |
|
{ |
161 |
|
/* numeric IPv6 style address format - [1:2:3::4]:port */ |
162 |
|
p = strchr(server, ']'); |
163 |
|
if (*server == '[' && p != NULL) |
164 |
|
{ |
165 |
|
if (*(p + 1) == ':' && *(p + 2) != '\0') |
166 |
|
tcp_port_rdp = strtol(p + 2, NULL, 10); |
167 |
|
/* remove the port number and brackets from the address */ |
168 |
|
*p = '\0'; |
169 |
|
strncpy(server, server + 1, strlen(server)); |
170 |
|
} |
171 |
|
} |
172 |
|
else |
173 |
|
{ |
174 |
|
/* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */ |
175 |
|
p = strchr(server, ':'); |
176 |
|
if (p != NULL) |
177 |
|
{ |
178 |
|
tcp_port_rdp = strtol(p + 1, NULL, 10); |
179 |
|
*p = 0; |
180 |
|
} |
181 |
|
} |
182 |
|
#else /* no IPv6 support */ |
183 |
|
p = strchr(server, ':'); |
184 |
|
if (p != NULL) |
185 |
|
{ |
186 |
|
tcp_port_rdp = strtol(p + 1, NULL, 10); |
187 |
|
*p = 0; |
188 |
|
} |
189 |
|
#endif /* IPv6 */ |
190 |
|
|
191 |
} |
} |
192 |
|
|
193 |
/* Client program */ |
/* Client program */ |
194 |
int |
int |
195 |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
196 |
{ |
{ |
197 |
|
char server[64]; |
198 |
char fullhostname[64]; |
char fullhostname[64]; |
199 |
char domain[16]; |
char domain[16]; |
200 |
char password[16]; |
char password[16]; |
201 |
char shell[32]; |
char shell[128]; |
202 |
char directory[32]; |
char directory[32]; |
203 |
char title[32]; |
BOOL prompt_password, rdp_retval = False; |
204 |
struct passwd *pw; |
struct passwd *pw; |
|
char *server, *p; |
|
205 |
uint32 flags; |
uint32 flags; |
206 |
|
char *p; |
207 |
int c; |
int c; |
208 |
|
int username_option = 0; |
|
printf("rdesktop: A Remote Desktop Protocol client.\n"); |
|
|
printf("Version " VERSION ". Copyright (C) 1999-2001 Matt Chapman.\n"); |
|
|
printf("See http://www.rdesktop.org/ for more information.\n\n"); |
|
209 |
|
|
210 |
flags = RDP_LOGON_NORMAL; |
flags = RDP_LOGON_NORMAL; |
211 |
|
prompt_password = False; |
212 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
213 |
strcpy(keymapname, "us"); |
strcpy(keymapname, "en-us"); |
214 |
|
|
215 |
|
#ifdef RDP2VNC |
216 |
|
#define VNCOPT "V:Q:" |
217 |
|
#else |
218 |
|
#define VNCOPT |
219 |
|
#endif |
220 |
|
|
221 |
while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:t:fbemlKh?")) != -1) |
while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbeEmCKT:Dh?54")) != -1) |
222 |
{ |
{ |
223 |
switch (c) |
switch (c) |
224 |
{ |
{ |
225 |
|
#ifdef RDP2VNC |
226 |
|
case 'V': |
227 |
|
rfb_port = strtol(optarg, NULL, 10); |
228 |
|
if (rfb_port < 100) |
229 |
|
rfb_port += 5900; |
230 |
|
break; |
231 |
|
|
232 |
|
case 'Q': |
233 |
|
defer_time = strtol(optarg, NULL, 10); |
234 |
|
if (defer_time < 0) |
235 |
|
defer_time = 0; |
236 |
|
break; |
237 |
|
#endif |
238 |
|
|
239 |
case 'u': |
case 'u': |
240 |
STRNCPY(username, optarg, sizeof(username)); |
STRNCPY(g_username, optarg, sizeof(g_username)); |
241 |
|
username_option = 1; |
242 |
break; |
break; |
243 |
|
|
244 |
case 'd': |
case 'd': |
249 |
STRNCPY(shell, optarg, sizeof(shell)); |
STRNCPY(shell, optarg, sizeof(shell)); |
250 |
break; |
break; |
251 |
|
|
252 |
|
case 'S': |
253 |
|
if (!strcmp(optarg, "standard")) |
254 |
|
{ |
255 |
|
g_win_button_size = 18; |
256 |
|
break; |
257 |
|
} |
258 |
|
|
259 |
|
g_win_button_size = strtol(optarg, &p, 10); |
260 |
|
|
261 |
|
if (*p) |
262 |
|
{ |
263 |
|
error("invalid button size\n"); |
264 |
|
return 1; |
265 |
|
} |
266 |
|
|
267 |
|
break; |
268 |
|
|
269 |
case 'c': |
case 'c': |
270 |
STRNCPY(directory, optarg, sizeof(directory)); |
STRNCPY(directory, optarg, sizeof(directory)); |
271 |
break; |
break; |
272 |
|
|
273 |
case 'p': |
case 'p': |
274 |
|
if ((optarg[0] == '-') && (optarg[1] == 0)) |
275 |
|
{ |
276 |
|
prompt_password = True; |
277 |
|
break; |
278 |
|
} |
279 |
|
|
280 |
STRNCPY(password, optarg, sizeof(password)); |
STRNCPY(password, optarg, sizeof(password)); |
281 |
flags |= RDP_LOGON_AUTO; |
flags |= RDP_LOGON_AUTO; |
282 |
|
|
283 |
|
/* try to overwrite argument so it won't appear in ps */ |
284 |
|
p = optarg; |
285 |
|
while (*p) |
286 |
|
*(p++) = 'X'; |
287 |
break; |
break; |
288 |
|
|
289 |
case 'n': |
case 'n': |
295 |
break; |
break; |
296 |
|
|
297 |
case 'g': |
case 'g': |
298 |
width = strtol(optarg, &p, 10); |
if (!strcmp(optarg, "workarea")) |
299 |
|
{ |
300 |
|
g_width = g_height = 0; |
301 |
|
break; |
302 |
|
} |
303 |
|
|
304 |
|
g_width = strtol(optarg, &p, 10); |
305 |
if (*p == 'x') |
if (*p == 'x') |
306 |
height = strtol(p + 1, NULL, 10); |
g_height = strtol(p + 1, NULL, 10); |
307 |
|
|
308 |
if ((width == 0) || (height == 0)) |
if ((g_width == 0) || (g_height == 0)) |
309 |
{ |
{ |
310 |
error("invalid geometry\n"); |
error("invalid geometry\n"); |
311 |
return 1; |
return 1; |
313 |
break; |
break; |
314 |
|
|
315 |
case 'f': |
case 'f': |
316 |
fullscreen = True; |
g_fullscreen = True; |
317 |
break; |
break; |
318 |
|
|
319 |
case 'b': |
case 'b': |
320 |
orders = False; |
g_orders = False; |
321 |
break; |
break; |
322 |
|
|
323 |
case 'e': |
case 'e': |
324 |
encryption = False; |
g_encryption = False; |
325 |
|
break; |
326 |
|
case 'E': |
327 |
|
packet_encryption = False; |
328 |
break; |
break; |
|
|
|
329 |
case 'm': |
case 'm': |
330 |
sendmotion = False; |
g_sendmotion = False; |
331 |
break; |
break; |
332 |
|
|
333 |
case 'l': |
case 'C': |
334 |
licence = False; |
g_owncolmap = True; |
335 |
break; |
break; |
336 |
|
|
337 |
case 't': |
case 'K': |
338 |
tcp_port_rdp = strtol(optarg, NULL, 10); |
g_grab_keyboard = False; |
339 |
break; |
break; |
340 |
|
|
341 |
case 'K': |
case 'T': |
342 |
grab_keyboard = False; |
STRNCPY(g_title, optarg, sizeof(g_title)); |
343 |
|
break; |
344 |
|
|
345 |
|
case 'D': |
346 |
|
g_hide_decorations = True; |
347 |
|
break; |
348 |
|
|
349 |
|
case 'a': |
350 |
|
g_server_bpp = strtol(optarg, NULL, 10); |
351 |
|
if (g_server_bpp != 8 && g_server_bpp != 16 && g_server_bpp != 15 |
352 |
|
&& g_server_bpp != 24) |
353 |
|
{ |
354 |
|
error("invalid server bpp\n"); |
355 |
|
return 1; |
356 |
|
} |
357 |
|
break; |
358 |
|
|
359 |
|
case '4': |
360 |
|
g_use_rdp5 = False; |
361 |
|
break; |
362 |
|
|
363 |
|
case '5': |
364 |
|
g_use_rdp5 = True; |
365 |
break; |
break; |
366 |
|
|
367 |
case 'h': |
case 'h': |
378 |
return 1; |
return 1; |
379 |
} |
} |
380 |
|
|
381 |
server = argv[optind]; |
STRNCPY(server, argv[optind], sizeof(server)); |
382 |
|
parse_server_and_port(server); |
383 |
|
|
384 |
if (username[0] == 0) |
if (!username_option) |
385 |
{ |
{ |
386 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
387 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
390 |
return 1; |
return 1; |
391 |
} |
} |
392 |
|
|
393 |
STRNCPY(username, pw->pw_name, sizeof(username)); |
STRNCPY(g_username, pw->pw_name, sizeof(g_username)); |
394 |
} |
} |
395 |
|
|
396 |
if (hostname[0] == 0) |
if (hostname[0] == 0) |
408 |
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
409 |
} |
} |
410 |
|
|
411 |
if (!strcmp(password, "-")) |
if (prompt_password && read_password(password, sizeof(password))) |
412 |
{ |
flags |= RDP_LOGON_AUTO; |
|
p = getpass("Password: "); |
|
|
if (p == NULL) |
|
|
{ |
|
|
error("failed to read password\n"); |
|
|
return 0; |
|
|
} |
|
|
STRNCPY(password, p, sizeof(password)); |
|
|
} |
|
413 |
|
|
414 |
if ((width == 0) || (height == 0)) |
if (g_title[0] == 0) |
415 |
{ |
{ |
416 |
width = 800; |
strcpy(g_title, "rdesktop - "); |
417 |
height = 600; |
strncat(g_title, server, sizeof(g_title) - sizeof("rdesktop - ")); |
418 |
} |
} |
419 |
|
|
420 |
strcpy(title, "rdesktop - "); |
#ifdef RDP2VNC |
421 |
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
rdp2vnc_connect(server, flags, domain, password, shell, directory); |
422 |
|
return 0; |
423 |
|
#else |
424 |
|
|
|
xkeymap_init1(); |
|
425 |
if (!ui_init()) |
if (!ui_init()) |
426 |
return 1; |
return 1; |
427 |
|
|
428 |
|
#ifdef WITH_RDPSND |
429 |
|
rdpsnd_init(); |
430 |
|
#endif |
431 |
|
/* rdpdr_init(); */ |
432 |
|
|
433 |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
434 |
return 1; |
return 1; |
435 |
|
|
436 |
printf("Connection successful.\n"); |
/* By setting encryption to False here, we have an encrypted login |
437 |
|
packet but unencrypted transfer of other packets */ |
438 |
|
if (!packet_encryption) |
439 |
|
g_encryption = False; |
440 |
|
|
441 |
|
|
442 |
if (ui_create_window(title)) |
DEBUG(("Connection successful.\n")); |
443 |
|
memset(password, 0, sizeof(password)); |
444 |
|
|
445 |
|
if (ui_create_window()) |
446 |
{ |
{ |
447 |
rdp_main_loop(); |
rdp_retval = rdp_main_loop(); |
448 |
ui_destroy_window(); |
ui_destroy_window(); |
449 |
} |
} |
450 |
|
|
451 |
printf("Disconnecting...\n"); |
DEBUG(("Disconnecting...\n")); |
452 |
rdp_disconnect(); |
rdp_disconnect(); |
453 |
return 0; |
ui_deinit(); |
454 |
|
|
455 |
|
if (True == rdp_retval) |
456 |
|
return 0; |
457 |
|
else |
458 |
|
return 2; |
459 |
|
|
460 |
|
#endif |
461 |
|
|
462 |
|
} |
463 |
|
|
464 |
|
#ifdef EGD_SOCKET |
465 |
|
/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */ |
466 |
|
static BOOL |
467 |
|
generate_random_egd(uint8 * buf) |
468 |
|
{ |
469 |
|
struct sockaddr_un addr; |
470 |
|
BOOL ret = False; |
471 |
|
int fd; |
472 |
|
|
473 |
|
fd = socket(AF_UNIX, SOCK_STREAM, 0); |
474 |
|
if (fd == -1) |
475 |
|
return False; |
476 |
|
|
477 |
|
addr.sun_family = AF_UNIX; |
478 |
|
memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET)); |
479 |
|
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) |
480 |
|
goto err; |
481 |
|
|
482 |
|
/* PRNGD and EGD use a simple communications protocol */ |
483 |
|
buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */ |
484 |
|
buf[1] = 32; /* Number of requested random bytes */ |
485 |
|
if (write(fd, buf, 2) != 2) |
486 |
|
goto err; |
487 |
|
|
488 |
|
if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */ |
489 |
|
goto err; |
490 |
|
|
491 |
|
if (read(fd, buf, 32) != 32) |
492 |
|
goto err; |
493 |
|
|
494 |
|
ret = True; |
495 |
|
|
496 |
|
err: |
497 |
|
close(fd); |
498 |
|
return ret; |
499 |
} |
} |
500 |
|
#endif |
501 |
|
|
502 |
/* Generate a 32-byte random for the secure transport code. */ |
/* Generate a 32-byte random for the secure transport code. */ |
503 |
void |
void |
505 |
{ |
{ |
506 |
struct stat st; |
struct stat st; |
507 |
struct tms tmsbuf; |
struct tms tmsbuf; |
508 |
uint32 *r = (uint32 *) random; |
MD5_CTX md5; |
509 |
int fd; |
uint32 *r; |
510 |
|
int fd, n; |
511 |
|
|
512 |
/* If we have a kernel random device, use it. */ |
/* If we have a kernel random device, try that first */ |
513 |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
514 |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
515 |
{ |
{ |
516 |
read(fd, random, 32); |
n = read(fd, random, 32); |
517 |
close(fd); |
close(fd); |
518 |
return; |
if (n == 32) |
519 |
|
return; |
520 |
} |
} |
521 |
|
|
522 |
|
#ifdef EGD_SOCKET |
523 |
|
/* As a second preference use an EGD */ |
524 |
|
if (generate_random_egd(random)) |
525 |
|
return; |
526 |
|
#endif |
527 |
|
|
528 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
529 |
|
r = (uint32 *) random; |
530 |
r[0] = (getpid()) | (getppid() << 16); |
r[0] = (getpid()) | (getppid() << 16); |
531 |
r[1] = (getuid()) | (getgid() << 16); |
r[1] = (getuid()) | (getgid() << 16); |
532 |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
535 |
r[5] = st.st_atime; |
r[5] = st.st_atime; |
536 |
r[6] = st.st_mtime; |
r[6] = st.st_mtime; |
537 |
r[7] = st.st_ctime; |
r[7] = st.st_ctime; |
538 |
|
|
539 |
|
/* Hash both halves with MD5 to obscure possible patterns */ |
540 |
|
MD5_Init(&md5); |
541 |
|
MD5_Update(&md5, random, 16); |
542 |
|
MD5_Final(random, &md5); |
543 |
|
MD5_Update(&md5, random + 16, 16); |
544 |
|
MD5_Final(random + 16, &md5); |
545 |
} |
} |
546 |
|
|
547 |
/* malloc; exit if out of memory */ |
/* malloc; exit if out of memory */ |
590 |
va_end(ap); |
va_end(ap); |
591 |
} |
} |
592 |
|
|
593 |
|
/* report a warning */ |
594 |
|
void |
595 |
|
warning(char *format, ...) |
596 |
|
{ |
597 |
|
va_list ap; |
598 |
|
|
599 |
|
fprintf(stderr, "WARNING: "); |
600 |
|
|
601 |
|
va_start(ap, format); |
602 |
|
vfprintf(stderr, format, ap); |
603 |
|
va_end(ap); |
604 |
|
} |
605 |
|
|
606 |
/* report an unimplemented protocol feature */ |
/* report an unimplemented protocol feature */ |
607 |
void |
void |
608 |
unimpl(char *format, ...) |
unimpl(char *format, ...) |
618 |
|
|
619 |
/* produce a hex dump */ |
/* produce a hex dump */ |
620 |
void |
void |
621 |
hexdump(unsigned char *p, unsigned int len) |
hexdump(unsigned char *p, int len) |
622 |
{ |
{ |
623 |
unsigned char *line = p; |
unsigned char *line = p; |
624 |
unsigned int thisline, offset = 0; |
int i, thisline, offset = 0; |
|
int i; |
|
625 |
|
|
626 |
while (offset < len) |
while (offset < len) |
627 |
{ |
{ |
645 |
} |
} |
646 |
} |
} |
647 |
|
|
648 |
|
|
649 |
int |
int |
650 |
load_licence(unsigned char **data) |
load_licence(unsigned char **data) |
651 |
{ |
{ |
652 |
char path[PATH_MAX]; |
char *home, *path; |
|
char *home; |
|
653 |
struct stat st; |
struct stat st; |
654 |
int fd; |
int fd, length; |
655 |
|
|
656 |
home = getenv("HOME"); |
home = getenv("HOME"); |
657 |
if (home == NULL) |
if (home == NULL) |
658 |
return -1; |
return -1; |
659 |
|
|
660 |
STRNCPY(path, home, sizeof(path)); |
path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence.")); |
661 |
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
662 |
|
|
663 |
fd = open(path, O_RDONLY); |
fd = open(path, O_RDONLY); |
664 |
if (fd == -1) |
if (fd == -1) |
667 |
if (fstat(fd, &st)) |
if (fstat(fd, &st)) |
668 |
return -1; |
return -1; |
669 |
|
|
670 |
*data = xmalloc(st.st_size); |
*data = (uint8 *) xmalloc(st.st_size); |
671 |
return read(fd, *data, st.st_size); |
length = read(fd, *data, st.st_size); |
672 |
|
close(fd); |
673 |
|
xfree(path); |
674 |
|
return length; |
675 |
} |
} |
676 |
|
|
677 |
void |
void |
678 |
save_licence(unsigned char *data, int length) |
save_licence(unsigned char *data, int length) |
679 |
{ |
{ |
680 |
char path[PATH_MAX]; |
char *home, *path, *tmppath; |
|
char *home; |
|
681 |
int fd; |
int fd; |
682 |
|
|
683 |
home = getenv("HOME"); |
home = getenv("HOME"); |
684 |
if (home == NULL) |
if (home == NULL) |
685 |
return; |
return; |
686 |
|
|
687 |
STRNCPY(path, home, sizeof(path)); |
path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence.")); |
|
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
|
|
mkdir(path, 0700); |
|
688 |
|
|
689 |
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop", home); |
690 |
|
if ((mkdir(path, 0700) == -1) && errno != EEXIST) |
691 |
|
{ |
692 |
|
perror(path); |
693 |
|
return; |
694 |
|
} |
695 |
|
|
696 |
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
/* write licence to licence.hostname.new, then atomically rename to licence.hostname */ |
697 |
|
|
698 |
|
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
699 |
|
tmppath = (char *) xmalloc(strlen(path) + sizeof(".new")); |
700 |
|
strcpy(tmppath, path); |
701 |
|
strcat(tmppath, ".new"); |
702 |
|
|
703 |
|
fd = open(tmppath, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
704 |
if (fd == -1) |
if (fd == -1) |
705 |
{ |
{ |
706 |
perror("open"); |
perror(tmppath); |
707 |
return; |
return; |
708 |
} |
} |
709 |
|
|
710 |
write(fd, data, length); |
if (write(fd, data, length) != length) |
711 |
|
{ |
712 |
|
perror(tmppath); |
713 |
|
unlink(tmppath); |
714 |
|
} |
715 |
|
else if (rename(tmppath, path) == -1) |
716 |
|
{ |
717 |
|
perror(path); |
718 |
|
unlink(tmppath); |
719 |
|
} |
720 |
|
|
721 |
close(fd); |
close(fd); |
722 |
|
xfree(tmppath); |
723 |
|
xfree(path); |
724 |
} |
} |