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 1999-2002 |
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 |
18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 |
*/ |
*/ |
20 |
|
|
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#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 title[32] = ""; |
#ifdef EGD_SOCKET |
33 |
char username[16]; |
#include <sys/socket.h> /* socket connect */ |
34 |
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#include <sys/un.h> /* sockaddr_un */ |
35 |
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#endif |
36 |
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37 |
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#ifdef WITH_OPENSSL |
38 |
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#include <openssl/md5.h> |
39 |
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#else |
40 |
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#include "crypto/md5.h" |
41 |
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#endif |
42 |
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|
43 |
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char g_title[64] = ""; |
44 |
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char g_username[64]; |
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 = 800; |
int g_width = 800; /* If width or height are reset to zero, the geometry will |
49 |
int height = 600; |
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 |
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BOOL g_fullscreen = False; |
61 |
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BOOL g_grab_keyboard = True; |
62 |
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BOOL g_hide_decorations = False; |
63 |
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BOOL g_use_rdp5 = True; |
64 |
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BOOL g_console_session = False; |
65 |
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extern BOOL g_owncolmap; |
66 |
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|
67 |
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#ifdef RDP2VNC |
68 |
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extern int rfb_port; |
69 |
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extern int defer_time; |
70 |
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void |
71 |
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rdp2vnc_connect(char *server, uint32 flags, char *domain, char *password, |
72 |
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char *shell, char *directory); |
73 |
|
#endif |
74 |
/* Display usage information */ |
/* Display usage information */ |
75 |
static void |
static void |
76 |
usage(char *program) |
usage(char *program) |
77 |
{ |
{ |
78 |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
79 |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n"); |
80 |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
81 |
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|
82 |
fprintf(stderr, "Usage: %s [options] server\n", program); |
fprintf(stderr, "Usage: %s [options] server[:port]\n", program); |
83 |
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#ifdef RDP2VNC |
84 |
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fprintf(stderr, " -V: vnc port\n"); |
85 |
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fprintf(stderr, " -Q: defer time (ms)\n"); |
86 |
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#endif |
87 |
fprintf(stderr, " -u: user name\n"); |
fprintf(stderr, " -u: user name\n"); |
88 |
fprintf(stderr, " -d: domain\n"); |
fprintf(stderr, " -d: domain\n"); |
89 |
fprintf(stderr, " -s: shell\n"); |
fprintf(stderr, " -s: shell\n"); |
90 |
|
fprintf(stderr, " -S: caption button size (single application mode)\n"); |
91 |
fprintf(stderr, " -c: working directory\n"); |
fprintf(stderr, " -c: working directory\n"); |
92 |
fprintf(stderr, " -p: password (autologon)\n"); |
fprintf(stderr, " -p: password (- to prompt)\n"); |
|
fprintf(stderr, " -P: askpass-program (autologon)\n"); |
|
93 |
fprintf(stderr, " -n: client hostname\n"); |
fprintf(stderr, " -n: client hostname\n"); |
94 |
fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr etc.)\n"); |
fprintf(stderr, " -k: keyboard layout on terminal server (us,sv,gr,etc.)\n"); |
95 |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
96 |
fprintf(stderr, " -f: full-screen mode\n"); |
fprintf(stderr, " -f: full-screen mode\n"); |
97 |
fprintf(stderr, " -b: force bitmap updates\n"); |
fprintf(stderr, " -b: force bitmap updates\n"); |
98 |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
99 |
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fprintf(stderr, " -E: disable encryption from client to server\n"); |
100 |
fprintf(stderr, " -m: do not send motion events\n"); |
fprintf(stderr, " -m: do not send motion events\n"); |
101 |
fprintf(stderr, " -l: do not request licence\n"); |
fprintf(stderr, " -C: use private colour map\n"); |
|
fprintf(stderr, " -t: rdp tcp port\n"); |
|
102 |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
103 |
fprintf(stderr, " -w: window title\n"); |
fprintf(stderr, " -T: window title\n"); |
104 |
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fprintf(stderr, " -D: hide window manager decorations\n"); |
105 |
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fprintf(stderr, " -a: server bpp\n"); |
106 |
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fprintf(stderr, " -0: attach to console\n"); |
107 |
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fprintf(stderr, " -4: use RDP version 4\n"); |
108 |
|
fprintf(stderr, " -5: use RDP version 5 (default)\n"); |
109 |
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} |
110 |
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|
111 |
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static BOOL |
112 |
|
read_password(char *password, int size) |
113 |
|
{ |
114 |
|
struct termios tios; |
115 |
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BOOL ret = False; |
116 |
|
int istty = 0; |
117 |
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char *p; |
118 |
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|
119 |
|
if (tcgetattr(STDIN_FILENO, &tios) == 0) |
120 |
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{ |
121 |
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fprintf(stderr, "Password: "); |
122 |
|
tios.c_lflag &= ~ECHO; |
123 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
124 |
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istty = 1; |
125 |
|
} |
126 |
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|
127 |
|
if (fgets(password, size, stdin) != NULL) |
128 |
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{ |
129 |
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ret = True; |
130 |
|
|
131 |
|
/* strip final newline */ |
132 |
|
p = strchr(password, '\n'); |
133 |
|
if (p != NULL) |
134 |
|
*p = 0; |
135 |
|
} |
136 |
|
|
137 |
|
if (istty) |
138 |
|
{ |
139 |
|
tios.c_lflag |= ECHO; |
140 |
|
tcsetattr(STDIN_FILENO, TCSANOW, &tios); |
141 |
|
fprintf(stderr, "\n"); |
142 |
|
} |
143 |
|
|
144 |
|
return ret; |
145 |
|
} |
146 |
|
|
147 |
|
static void |
148 |
|
parse_server_and_port(char *server) |
149 |
|
{ |
150 |
|
char *p; |
151 |
|
#ifdef IPv6 |
152 |
|
int addr_colons; |
153 |
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#endif |
154 |
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|
155 |
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#ifdef IPv6 |
156 |
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p = server; |
157 |
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addr_colons = 0; |
158 |
|
while (*p) |
159 |
|
if (*p++ == ':') |
160 |
|
addr_colons++; |
161 |
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if (addr_colons >= 2) |
162 |
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{ |
163 |
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/* numeric IPv6 style address format - [1:2:3::4]:port */ |
164 |
|
p = strchr(server, ']'); |
165 |
|
if (*server == '[' && p != NULL) |
166 |
|
{ |
167 |
|
if (*(p + 1) == ':' && *(p + 2) != '\0') |
168 |
|
tcp_port_rdp = strtol(p + 2, NULL, 10); |
169 |
|
/* remove the port number and brackets from the address */ |
170 |
|
*p = '\0'; |
171 |
|
strncpy(server, server + 1, strlen(server)); |
172 |
|
} |
173 |
|
} |
174 |
|
else |
175 |
|
{ |
176 |
|
/* dns name or IPv4 style address format - server.example.com:port or 1.2.3.4:port */ |
177 |
|
p = strchr(server, ':'); |
178 |
|
if (p != NULL) |
179 |
|
{ |
180 |
|
tcp_port_rdp = strtol(p + 1, NULL, 10); |
181 |
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*p = 0; |
182 |
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} |
183 |
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} |
184 |
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#else /* no IPv6 support */ |
185 |
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p = strchr(server, ':'); |
186 |
|
if (p != NULL) |
187 |
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{ |
188 |
|
tcp_port_rdp = strtol(p + 1, NULL, 10); |
189 |
|
*p = 0; |
190 |
|
} |
191 |
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#endif /* IPv6 */ |
192 |
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|
193 |
} |
} |
194 |
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|
195 |
/* Client program */ |
/* Client program */ |
196 |
int |
int |
197 |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
198 |
{ |
{ |
199 |
|
char server[64]; |
200 |
char fullhostname[64]; |
char fullhostname[64]; |
201 |
char domain[16]; |
char domain[16]; |
202 |
char password[16]; |
char password[64]; |
203 |
char *askpass_result; |
char shell[128]; |
|
char shell[32]; |
|
204 |
char directory[32]; |
char directory[32]; |
205 |
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BOOL prompt_password, rdp_retval = False; |
206 |
struct passwd *pw; |
struct passwd *pw; |
|
char *server, *p; |
|
207 |
uint32 flags; |
uint32 flags; |
208 |
|
char *p; |
209 |
int c; |
int c; |
210 |
|
int username_option = 0; |
211 |
|
|
212 |
flags = RDP_LOGON_NORMAL; |
flags = RDP_LOGON_NORMAL; |
213 |
|
prompt_password = False; |
214 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
215 |
strcpy(keymapname, "us"); |
strcpy(keymapname, "en-us"); |
216 |
|
|
217 |
|
#ifdef RDP2VNC |
218 |
|
#define VNCOPT "V:Q:" |
219 |
|
#else |
220 |
|
#define VNCOPT |
221 |
|
#endif |
222 |
|
|
223 |
while ((c = getopt(argc, argv, "u:d:s:c:p:P:n:k:g:t:fbemlKw:h?")) != -1) |
while ((c = getopt(argc, argv, VNCOPT "u:d:s:S:c:p:n:k:g:a:fbeEmCKT:D045h?")) != -1) |
224 |
{ |
{ |
225 |
switch (c) |
switch (c) |
226 |
{ |
{ |
227 |
|
#ifdef RDP2VNC |
228 |
|
case 'V': |
229 |
|
rfb_port = strtol(optarg, NULL, 10); |
230 |
|
if (rfb_port < 100) |
231 |
|
rfb_port += 5900; |
232 |
|
break; |
233 |
|
|
234 |
|
case 'Q': |
235 |
|
defer_time = strtol(optarg, NULL, 10); |
236 |
|
if (defer_time < 0) |
237 |
|
defer_time = 0; |
238 |
|
break; |
239 |
|
#endif |
240 |
|
|
241 |
case 'u': |
case 'u': |
242 |
STRNCPY(username, optarg, sizeof(username)); |
STRNCPY(g_username, optarg, sizeof(g_username)); |
243 |
|
username_option = 1; |
244 |
break; |
break; |
245 |
|
|
246 |
case 'd': |
case 'd': |
251 |
STRNCPY(shell, optarg, sizeof(shell)); |
STRNCPY(shell, optarg, sizeof(shell)); |
252 |
break; |
break; |
253 |
|
|
254 |
|
case 'S': |
255 |
|
if (!strcmp(optarg, "standard")) |
256 |
|
{ |
257 |
|
g_win_button_size = 18; |
258 |
|
break; |
259 |
|
} |
260 |
|
|
261 |
|
g_win_button_size = strtol(optarg, &p, 10); |
262 |
|
|
263 |
|
if (*p) |
264 |
|
{ |
265 |
|
error("invalid button size\n"); |
266 |
|
return 1; |
267 |
|
} |
268 |
|
|
269 |
|
break; |
270 |
|
|
271 |
case 'c': |
case 'c': |
272 |
STRNCPY(directory, optarg, sizeof(directory)); |
STRNCPY(directory, optarg, sizeof(directory)); |
273 |
break; |
break; |
274 |
|
|
275 |
case 'p': |
case 'p': |
276 |
|
if ((optarg[0] == '-') && (optarg[1] == 0)) |
277 |
|
{ |
278 |
|
prompt_password = True; |
279 |
|
break; |
280 |
|
} |
281 |
|
|
282 |
STRNCPY(password, optarg, sizeof(password)); |
STRNCPY(password, optarg, sizeof(password)); |
283 |
flags |= RDP_LOGON_AUTO; |
flags |= RDP_LOGON_AUTO; |
|
break; |
|
284 |
|
|
285 |
case 'P': |
/* try to overwrite argument so it won't appear in ps */ |
286 |
askpass_result = askpass(optarg, "Enter password"); |
p = optarg; |
287 |
if (askpass_result == NULL) |
while (*p) |
288 |
exit(1); |
*(p++) = 'X'; |
|
|
|
|
STRNCPY(password, askpass_result, sizeof(password)); |
|
|
free(askpass_result); |
|
|
flags |= RDP_LOGON_AUTO; |
|
289 |
break; |
break; |
290 |
|
|
291 |
case 'n': |
case 'n': |
297 |
break; |
break; |
298 |
|
|
299 |
case 'g': |
case 'g': |
300 |
width = strtol(optarg, &p, 10); |
if (!strcmp(optarg, "workarea")) |
301 |
|
{ |
302 |
|
g_width = g_height = 0; |
303 |
|
break; |
304 |
|
} |
305 |
|
|
306 |
|
g_width = strtol(optarg, &p, 10); |
307 |
if (*p == 'x') |
if (*p == 'x') |
308 |
height = strtol(p + 1, NULL, 10); |
g_height = strtol(p + 1, NULL, 10); |
309 |
|
|
310 |
if ((width == 0) || (height == 0)) |
if ((g_width == 0) || (g_height == 0)) |
311 |
{ |
{ |
312 |
error("invalid geometry\n"); |
error("invalid geometry\n"); |
313 |
return 1; |
return 1; |
315 |
break; |
break; |
316 |
|
|
317 |
case 'f': |
case 'f': |
318 |
fullscreen = True; |
g_fullscreen = True; |
319 |
break; |
break; |
320 |
|
|
321 |
case 'b': |
case 'b': |
322 |
orders = False; |
g_orders = False; |
323 |
break; |
break; |
324 |
|
|
325 |
case 'e': |
case 'e': |
326 |
encryption = False; |
g_encryption = False; |
327 |
|
break; |
328 |
|
case 'E': |
329 |
|
packet_encryption = False; |
330 |
break; |
break; |
|
|
|
331 |
case 'm': |
case 'm': |
332 |
sendmotion = False; |
g_sendmotion = False; |
333 |
|
break; |
334 |
|
|
335 |
|
case 'C': |
336 |
|
g_owncolmap = True; |
337 |
break; |
break; |
338 |
|
|
339 |
case 'l': |
case 'K': |
340 |
licence = False; |
g_grab_keyboard = False; |
341 |
break; |
break; |
342 |
|
|
343 |
case 't': |
case 'T': |
344 |
tcp_port_rdp = strtol(optarg, NULL, 10); |
STRNCPY(g_title, optarg, sizeof(g_title)); |
345 |
break; |
break; |
346 |
|
|
347 |
case 'K': |
case 'D': |
348 |
grab_keyboard = False; |
g_hide_decorations = True; |
349 |
|
break; |
350 |
|
|
351 |
|
case 'a': |
352 |
|
g_server_bpp = strtol(optarg, NULL, 10); |
353 |
|
if (g_server_bpp != 8 && g_server_bpp != 16 && g_server_bpp != 15 |
354 |
|
&& g_server_bpp != 24) |
355 |
|
{ |
356 |
|
error("invalid server bpp\n"); |
357 |
|
return 1; |
358 |
|
} |
359 |
|
break; |
360 |
|
|
361 |
|
case '0': |
362 |
|
g_console_session = True; |
363 |
|
break; |
364 |
|
|
365 |
|
case '4': |
366 |
|
g_use_rdp5 = False; |
367 |
break; |
break; |
368 |
|
|
369 |
case 'w': |
case '5': |
370 |
strncpy(title, optarg, sizeof(title)); |
g_use_rdp5 = True; |
371 |
break; |
break; |
372 |
|
|
373 |
case 'h': |
case 'h': |
384 |
return 1; |
return 1; |
385 |
} |
} |
386 |
|
|
387 |
server = argv[optind]; |
STRNCPY(server, argv[optind], sizeof(server)); |
388 |
|
parse_server_and_port(server); |
389 |
|
|
390 |
if (username[0] == 0) |
if (!username_option) |
391 |
{ |
{ |
392 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
393 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
396 |
return 1; |
return 1; |
397 |
} |
} |
398 |
|
|
399 |
STRNCPY(username, pw->pw_name, sizeof(username)); |
STRNCPY(g_username, pw->pw_name, sizeof(g_username)); |
400 |
} |
} |
401 |
|
|
402 |
if (hostname[0] == 0) |
if (hostname[0] == 0) |
414 |
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
415 |
} |
} |
416 |
|
|
417 |
if (!strcmp(password, "-")) |
if (prompt_password && read_password(password, sizeof(password))) |
418 |
{ |
flags |= RDP_LOGON_AUTO; |
|
p = getpass("Password: "); |
|
|
if (p == NULL) |
|
|
{ |
|
|
error("failed to read password\n"); |
|
|
return 0; |
|
|
} |
|
|
STRNCPY(password, p, sizeof(password)); |
|
|
} |
|
419 |
|
|
420 |
if (!strlen(title)) |
if (g_title[0] == 0) |
421 |
{ |
{ |
422 |
strcpy(title, "rdesktop - "); |
strcpy(g_title, "rdesktop - "); |
423 |
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
strncat(g_title, server, sizeof(g_title) - sizeof("rdesktop - ")); |
424 |
} |
} |
425 |
|
|
426 |
|
#ifdef RDP2VNC |
427 |
|
rdp2vnc_connect(server, flags, domain, password, shell, directory); |
428 |
|
return 0; |
429 |
|
#else |
430 |
|
|
431 |
if (!ui_init()) |
if (!ui_init()) |
432 |
return 1; |
return 1; |
433 |
|
|
434 |
|
#ifdef WITH_RDPSND |
435 |
|
rdpsnd_init(); |
436 |
|
#endif |
437 |
|
/* rdpdr_init(); */ |
438 |
|
|
439 |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
440 |
return 1; |
return 1; |
441 |
|
|
442 |
|
/* By setting encryption to False here, we have an encrypted login |
443 |
|
packet but unencrypted transfer of other packets */ |
444 |
|
if (!packet_encryption) |
445 |
|
g_encryption = False; |
446 |
|
|
447 |
|
|
448 |
DEBUG(("Connection successful.\n")); |
DEBUG(("Connection successful.\n")); |
449 |
|
memset(password, 0, sizeof(password)); |
450 |
|
|
451 |
if (ui_create_window()) |
if (ui_create_window()) |
452 |
{ |
{ |
453 |
rdp_main_loop(); |
rdp_retval = rdp_main_loop(); |
454 |
ui_destroy_window(); |
ui_destroy_window(); |
455 |
} |
} |
456 |
|
|
457 |
DEBUG(("Disconnecting...\n")); |
DEBUG(("Disconnecting...\n")); |
458 |
rdp_disconnect(); |
rdp_disconnect(); |
459 |
return 0; |
ui_deinit(); |
460 |
|
|
461 |
|
if (True == rdp_retval) |
462 |
|
return 0; |
463 |
|
else |
464 |
|
return 2; |
465 |
|
|
466 |
|
#endif |
467 |
|
|
468 |
} |
} |
469 |
|
|
470 |
|
#ifdef EGD_SOCKET |
471 |
|
/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */ |
472 |
|
static BOOL |
473 |
|
generate_random_egd(uint8 * buf) |
474 |
|
{ |
475 |
|
struct sockaddr_un addr; |
476 |
|
BOOL ret = False; |
477 |
|
int fd; |
478 |
|
|
479 |
|
fd = socket(AF_UNIX, SOCK_STREAM, 0); |
480 |
|
if (fd == -1) |
481 |
|
return False; |
482 |
|
|
483 |
|
addr.sun_family = AF_UNIX; |
484 |
|
memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET)); |
485 |
|
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) |
486 |
|
goto err; |
487 |
|
|
488 |
|
/* PRNGD and EGD use a simple communications protocol */ |
489 |
|
buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */ |
490 |
|
buf[1] = 32; /* Number of requested random bytes */ |
491 |
|
if (write(fd, buf, 2) != 2) |
492 |
|
goto err; |
493 |
|
|
494 |
|
if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */ |
495 |
|
goto err; |
496 |
|
|
497 |
|
if (read(fd, buf, 32) != 32) |
498 |
|
goto err; |
499 |
|
|
500 |
|
ret = True; |
501 |
|
|
502 |
|
err: |
503 |
|
close(fd); |
504 |
|
return ret; |
505 |
|
} |
506 |
|
#endif |
507 |
|
|
508 |
/* Generate a 32-byte random for the secure transport code. */ |
/* Generate a 32-byte random for the secure transport code. */ |
509 |
void |
void |
510 |
generate_random(uint8 * random) |
generate_random(uint8 * random) |
511 |
{ |
{ |
512 |
struct stat st; |
struct stat st; |
513 |
struct tms tmsbuf; |
struct tms tmsbuf; |
514 |
uint32 *r = (uint32 *) random; |
MD5_CTX md5; |
515 |
int fd; |
uint32 *r; |
516 |
|
int fd, n; |
517 |
|
|
518 |
/* If we have a kernel random device, use it. */ |
/* If we have a kernel random device, try that first */ |
519 |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
520 |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
521 |
{ |
{ |
522 |
read(fd, random, 32); |
n = read(fd, random, 32); |
523 |
close(fd); |
close(fd); |
524 |
return; |
if (n == 32) |
525 |
|
return; |
526 |
} |
} |
527 |
|
|
528 |
|
#ifdef EGD_SOCKET |
529 |
|
/* As a second preference use an EGD */ |
530 |
|
if (generate_random_egd(random)) |
531 |
|
return; |
532 |
|
#endif |
533 |
|
|
534 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
535 |
|
r = (uint32 *) random; |
536 |
r[0] = (getpid()) | (getppid() << 16); |
r[0] = (getpid()) | (getppid() << 16); |
537 |
r[1] = (getuid()) | (getgid() << 16); |
r[1] = (getuid()) | (getgid() << 16); |
538 |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
541 |
r[5] = st.st_atime; |
r[5] = st.st_atime; |
542 |
r[6] = st.st_mtime; |
r[6] = st.st_mtime; |
543 |
r[7] = st.st_ctime; |
r[7] = st.st_ctime; |
544 |
|
|
545 |
|
/* Hash both halves with MD5 to obscure possible patterns */ |
546 |
|
MD5_Init(&md5); |
547 |
|
MD5_Update(&md5, random, 16); |
548 |
|
MD5_Final(random, &md5); |
549 |
|
MD5_Update(&md5, random + 16, 16); |
550 |
|
MD5_Final(random + 16, &md5); |
551 |
} |
} |
552 |
|
|
553 |
/* malloc; exit if out of memory */ |
/* malloc; exit if out of memory */ |
596 |
va_end(ap); |
va_end(ap); |
597 |
} |
} |
598 |
|
|
599 |
|
/* report a warning */ |
600 |
|
void |
601 |
|
warning(char *format, ...) |
602 |
|
{ |
603 |
|
va_list ap; |
604 |
|
|
605 |
|
fprintf(stderr, "WARNING: "); |
606 |
|
|
607 |
|
va_start(ap, format); |
608 |
|
vfprintf(stderr, format, ap); |
609 |
|
va_end(ap); |
610 |
|
} |
611 |
|
|
612 |
/* report an unimplemented protocol feature */ |
/* report an unimplemented protocol feature */ |
613 |
void |
void |
614 |
unimpl(char *format, ...) |
unimpl(char *format, ...) |
624 |
|
|
625 |
/* produce a hex dump */ |
/* produce a hex dump */ |
626 |
void |
void |
627 |
hexdump(unsigned char *p, unsigned int len) |
hexdump(unsigned char *p, int len) |
628 |
{ |
{ |
629 |
unsigned char *line = p; |
unsigned char *line = p; |
630 |
unsigned int thisline, offset = 0; |
int i, thisline, offset = 0; |
|
int i; |
|
631 |
|
|
632 |
while (offset < len) |
while (offset < len) |
633 |
{ |
{ |
651 |
} |
} |
652 |
} |
} |
653 |
|
|
654 |
#ifdef SAVE_LICENCE |
|
655 |
int |
int |
656 |
load_licence(unsigned char **data) |
load_licence(unsigned char **data) |
657 |
{ |
{ |
658 |
char path[PATH_MAX]; |
char *home, *path; |
|
char *home; |
|
659 |
struct stat st; |
struct stat st; |
660 |
int fd; |
int fd, length; |
661 |
|
|
662 |
home = getenv("HOME"); |
home = getenv("HOME"); |
663 |
if (home == NULL) |
if (home == NULL) |
664 |
return -1; |
return -1; |
665 |
|
|
666 |
STRNCPY(path, home, sizeof(path)); |
path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence.")); |
667 |
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
668 |
|
|
669 |
fd = open(path, O_RDONLY); |
fd = open(path, O_RDONLY); |
670 |
if (fd == -1) |
if (fd == -1) |
673 |
if (fstat(fd, &st)) |
if (fstat(fd, &st)) |
674 |
return -1; |
return -1; |
675 |
|
|
676 |
*data = xmalloc(st.st_size); |
*data = (uint8 *) xmalloc(st.st_size); |
677 |
return read(fd, *data, st.st_size); |
length = read(fd, *data, st.st_size); |
678 |
|
close(fd); |
679 |
|
xfree(path); |
680 |
|
return length; |
681 |
} |
} |
682 |
|
|
683 |
void |
void |
684 |
save_licence(unsigned char *data, int length) |
save_licence(unsigned char *data, int length) |
685 |
{ |
{ |
686 |
char path[PATH_MAX]; |
char *home, *path, *tmppath; |
|
char *home; |
|
687 |
int fd; |
int fd; |
688 |
|
|
689 |
home = getenv("HOME"); |
home = getenv("HOME"); |
690 |
if (home == NULL) |
if (home == NULL) |
691 |
return; |
return; |
692 |
|
|
693 |
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); |
|
694 |
|
|
695 |
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop", home); |
696 |
|
if ((mkdir(path, 0700) == -1) && errno != EEXIST) |
697 |
|
{ |
698 |
|
perror(path); |
699 |
|
return; |
700 |
|
} |
701 |
|
|
702 |
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
/* write licence to licence.hostname.new, then atomically rename to licence.hostname */ |
703 |
|
|
704 |
|
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
705 |
|
tmppath = (char *) xmalloc(strlen(path) + sizeof(".new")); |
706 |
|
strcpy(tmppath, path); |
707 |
|
strcat(tmppath, ".new"); |
708 |
|
|
709 |
|
fd = open(tmppath, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
710 |
if (fd == -1) |
if (fd == -1) |
711 |
{ |
{ |
712 |
perror("open"); |
perror(tmppath); |
713 |
return; |
return; |
714 |
} |
} |
715 |
|
|
716 |
write(fd, data, length); |
if (write(fd, data, length) != length) |
717 |
|
{ |
718 |
|
perror(tmppath); |
719 |
|
unlink(tmppath); |
720 |
|
} |
721 |
|
else if (rename(tmppath, path) == -1) |
722 |
|
{ |
723 |
|
perror(path); |
724 |
|
unlink(tmppath); |
725 |
|
} |
726 |
|
|
727 |
close(fd); |
close(fd); |
728 |
|
xfree(tmppath); |
729 |
|
xfree(path); |
730 |
} |
} |
|
#endif |
|