| 1 |
/* |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
Entrypoint and utility functions |
| 4 |
Copyright (C) Matthew Chapman 1999-2001 |
| 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 <stdlib.h> /* malloc realloc free */ |
| 22 |
#include <stdarg.h> /* va_list va_start va_end */ |
| 23 |
#include <unistd.h> /* read close getuid getgid getpid getppid gethostname */ |
| 24 |
#include <fcntl.h> /* open */ |
| 25 |
#include <pwd.h> /* getpwuid */ |
| 26 |
#include <limits.h> /* PATH_MAX */ |
| 27 |
#include <sys/stat.h> /* stat */ |
| 28 |
#include <sys/time.h> /* gettimeofday */ |
| 29 |
#include <sys/times.h> /* times */ |
| 30 |
#include "rdesktop.h" |
| 31 |
|
| 32 |
char username[16]; |
| 33 |
char hostname[16]; |
| 34 |
char keymapname[16]; |
| 35 |
int keylayout = 0x409; /* Defaults to US keyboard layout */ |
| 36 |
int width; |
| 37 |
int height; |
| 38 |
int tcp_port_rdp = TCP_PORT_RDP; |
| 39 |
BOOL bitmap_compression = True; |
| 40 |
BOOL sendmotion = True; |
| 41 |
BOOL orders = True; |
| 42 |
BOOL licence = True; |
| 43 |
BOOL encryption = True; |
| 44 |
BOOL desktop_save = True; |
| 45 |
BOOL fullscreen = False; |
| 46 |
BOOL grab_keyboard = True; |
| 47 |
|
| 48 |
/* Display usage information */ |
| 49 |
static void |
| 50 |
usage(char *program) |
| 51 |
{ |
| 52 |
printf("Usage: %s [options] server\n", program); |
| 53 |
printf(" -u: user name\n"); |
| 54 |
printf(" -d: domain\n"); |
| 55 |
printf(" -s: shell\n"); |
| 56 |
printf(" -c: working directory\n"); |
| 57 |
printf(" -p: password (autologon)\n"); |
| 58 |
printf(" -n: client hostname\n"); |
| 59 |
printf(" -k: keyboard layout on terminal server (us,sv,gr etc.)\n"); |
| 60 |
printf(" -g: desktop geometry (WxH)\n"); |
| 61 |
printf(" -f: full-screen mode\n"); |
| 62 |
printf(" -b: force bitmap updates\n"); |
| 63 |
printf(" -e: disable encryption (French TS)\n"); |
| 64 |
printf(" -m: do not send motion events\n"); |
| 65 |
printf(" -l: do not request licence\n"); |
| 66 |
printf(" -t: rdp tcp port\n"); |
| 67 |
printf(" -K: keep window manager key bindings\n"); |
| 68 |
} |
| 69 |
|
| 70 |
/* Client program */ |
| 71 |
int |
| 72 |
main(int argc, char *argv[]) |
| 73 |
{ |
| 74 |
char fullhostname[64]; |
| 75 |
char domain[16]; |
| 76 |
char password[16]; |
| 77 |
char shell[32]; |
| 78 |
char directory[32]; |
| 79 |
char title[32]; |
| 80 |
struct passwd *pw; |
| 81 |
char *server, *p; |
| 82 |
uint32 flags; |
| 83 |
int c; |
| 84 |
|
| 85 |
printf("rdesktop: A Remote Desktop Protocol client.\n"); |
| 86 |
printf("Version " VERSION |
| 87 |
". Copyright (C) 1999-2001 Matt Chapman.\n"); |
| 88 |
printf("See http://www.rdesktop.org/ for more information.\n\n"); |
| 89 |
|
| 90 |
flags = RDP_LOGON_NORMAL; |
| 91 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
| 92 |
strcpy(keymapname, "us"); |
| 93 |
|
| 94 |
while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:t:fbemlKh?")) != -1) |
| 95 |
{ |
| 96 |
switch (c) |
| 97 |
{ |
| 98 |
case 'u': |
| 99 |
STRNCPY(username, optarg, sizeof(username)); |
| 100 |
break; |
| 101 |
|
| 102 |
case 'd': |
| 103 |
STRNCPY(domain, optarg, sizeof(domain)); |
| 104 |
break; |
| 105 |
|
| 106 |
case 's': |
| 107 |
STRNCPY(shell, optarg, sizeof(shell)); |
| 108 |
break; |
| 109 |
|
| 110 |
case 'c': |
| 111 |
STRNCPY(directory, optarg, sizeof(directory)); |
| 112 |
break; |
| 113 |
|
| 114 |
case 'p': |
| 115 |
STRNCPY(password, optarg, sizeof(password)); |
| 116 |
flags |= RDP_LOGON_AUTO; |
| 117 |
break; |
| 118 |
|
| 119 |
case 'n': |
| 120 |
STRNCPY(hostname, optarg, sizeof(hostname)); |
| 121 |
break; |
| 122 |
|
| 123 |
case 'k': |
| 124 |
STRNCPY(keymapname, optarg, |
| 125 |
sizeof(keymapname)); |
| 126 |
break; |
| 127 |
|
| 128 |
case 'g': |
| 129 |
width = strtol(optarg, &p, 10); |
| 130 |
if (*p == 'x') |
| 131 |
height = strtol(p + 1, NULL, 10); |
| 132 |
|
| 133 |
if ((width == 0) || (height == 0)) |
| 134 |
{ |
| 135 |
error("invalid geometry\n"); |
| 136 |
return 1; |
| 137 |
} |
| 138 |
break; |
| 139 |
|
| 140 |
case 'f': |
| 141 |
fullscreen = True; |
| 142 |
break; |
| 143 |
|
| 144 |
case 'b': |
| 145 |
orders = False; |
| 146 |
break; |
| 147 |
|
| 148 |
case 'e': |
| 149 |
encryption = False; |
| 150 |
break; |
| 151 |
|
| 152 |
case 'm': |
| 153 |
sendmotion = False; |
| 154 |
break; |
| 155 |
|
| 156 |
case 'l': |
| 157 |
licence = False; |
| 158 |
break; |
| 159 |
|
| 160 |
case 't': |
| 161 |
tcp_port_rdp = strtol(optarg, NULL, 10); |
| 162 |
break; |
| 163 |
|
| 164 |
case 'K': |
| 165 |
grab_keyboard = False; |
| 166 |
break; |
| 167 |
|
| 168 |
case 'h': |
| 169 |
case '?': |
| 170 |
default: |
| 171 |
usage(argv[0]); |
| 172 |
return 1; |
| 173 |
} |
| 174 |
} |
| 175 |
|
| 176 |
if (argc - optind < 1) |
| 177 |
{ |
| 178 |
usage(argv[0]); |
| 179 |
return 1; |
| 180 |
} |
| 181 |
|
| 182 |
server = argv[optind]; |
| 183 |
|
| 184 |
if (username[0] == 0) |
| 185 |
{ |
| 186 |
pw = getpwuid(getuid()); |
| 187 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
| 188 |
{ |
| 189 |
error("could not determine username, use -u\n"); |
| 190 |
return 1; |
| 191 |
} |
| 192 |
|
| 193 |
STRNCPY(username, pw->pw_name, sizeof(username)); |
| 194 |
} |
| 195 |
|
| 196 |
if (hostname[0] == 0) |
| 197 |
{ |
| 198 |
if (gethostname(fullhostname, sizeof(fullhostname)) == -1) |
| 199 |
{ |
| 200 |
error("could not determine local hostname, use -n\n"); |
| 201 |
return 1; |
| 202 |
} |
| 203 |
|
| 204 |
p = strchr(fullhostname, '.'); |
| 205 |
if (p != NULL) |
| 206 |
*p = 0; |
| 207 |
|
| 208 |
STRNCPY(hostname, fullhostname, sizeof(hostname)); |
| 209 |
} |
| 210 |
|
| 211 |
if (!strcmp(password, "-")) |
| 212 |
{ |
| 213 |
p = getpass("Password: "); |
| 214 |
if (p == NULL) |
| 215 |
{ |
| 216 |
error("failed to read password\n"); |
| 217 |
return 0; |
| 218 |
} |
| 219 |
STRNCPY(password, p, sizeof(password)); |
| 220 |
} |
| 221 |
|
| 222 |
if ((width == 0) || (height == 0)) |
| 223 |
{ |
| 224 |
width = 800; |
| 225 |
height = 600; |
| 226 |
} |
| 227 |
|
| 228 |
strcpy(title, "rdesktop - "); |
| 229 |
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
| 230 |
|
| 231 |
xkeymap_init1(); |
| 232 |
if(!ui_init()) |
| 233 |
return 1; |
| 234 |
|
| 235 |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
| 236 |
return 1; |
| 237 |
|
| 238 |
printf("Connection successful.\n"); |
| 239 |
|
| 240 |
if (ui_create_window(title)) |
| 241 |
{ |
| 242 |
rdp_main_loop(); |
| 243 |
ui_destroy_window(); |
| 244 |
} |
| 245 |
|
| 246 |
printf("Disconnecting...\n"); |
| 247 |
rdp_disconnect(); |
| 248 |
return 0; |
| 249 |
} |
| 250 |
|
| 251 |
/* Generate a 32-byte random for the secure transport code. */ |
| 252 |
void |
| 253 |
generate_random(uint8 * random) |
| 254 |
{ |
| 255 |
struct stat st; |
| 256 |
struct tms tmsbuf; |
| 257 |
uint32 *r = (uint32 *) random; |
| 258 |
int fd; |
| 259 |
|
| 260 |
/* If we have a kernel random device, use it. */ |
| 261 |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
| 262 |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
| 263 |
{ |
| 264 |
read(fd, random, 32); |
| 265 |
close(fd); |
| 266 |
return; |
| 267 |
} |
| 268 |
|
| 269 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
| 270 |
r[0] = (getpid()) | (getppid() << 16); |
| 271 |
r[1] = (getuid()) | (getgid() << 16); |
| 272 |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
| 273 |
gettimeofday((struct timeval *) &r[3], NULL); /* sec and usec */ |
| 274 |
stat("/tmp", &st); |
| 275 |
r[5] = st.st_atime; |
| 276 |
r[6] = st.st_mtime; |
| 277 |
r[7] = st.st_ctime; |
| 278 |
} |
| 279 |
|
| 280 |
/* malloc; exit if out of memory */ |
| 281 |
void * |
| 282 |
xmalloc(int size) |
| 283 |
{ |
| 284 |
void *mem = malloc(size); |
| 285 |
if (mem == NULL) |
| 286 |
{ |
| 287 |
error("xmalloc %d\n", size); |
| 288 |
exit(1); |
| 289 |
} |
| 290 |
return mem; |
| 291 |
} |
| 292 |
|
| 293 |
/* realloc; exit if out of memory */ |
| 294 |
void * |
| 295 |
xrealloc(void *oldmem, int size) |
| 296 |
{ |
| 297 |
void *mem = realloc(oldmem, size); |
| 298 |
if (mem == NULL) |
| 299 |
{ |
| 300 |
error("xrealloc %d\n", size); |
| 301 |
exit(1); |
| 302 |
} |
| 303 |
return mem; |
| 304 |
} |
| 305 |
|
| 306 |
/* free */ |
| 307 |
void |
| 308 |
xfree(void *mem) |
| 309 |
{ |
| 310 |
free(mem); |
| 311 |
} |
| 312 |
|
| 313 |
/* report an error */ |
| 314 |
void |
| 315 |
error(char *format, ...) |
| 316 |
{ |
| 317 |
va_list ap; |
| 318 |
|
| 319 |
fprintf(stderr, "ERROR: "); |
| 320 |
|
| 321 |
va_start(ap, format); |
| 322 |
vfprintf(stderr, format, ap); |
| 323 |
va_end(ap); |
| 324 |
} |
| 325 |
|
| 326 |
/* report an unimplemented protocol feature */ |
| 327 |
void |
| 328 |
unimpl(char *format, ...) |
| 329 |
{ |
| 330 |
va_list ap; |
| 331 |
|
| 332 |
fprintf(stderr, "NOT IMPLEMENTED: "); |
| 333 |
|
| 334 |
va_start(ap, format); |
| 335 |
vfprintf(stderr, format, ap); |
| 336 |
va_end(ap); |
| 337 |
} |
| 338 |
|
| 339 |
/* produce a hex dump */ |
| 340 |
void |
| 341 |
hexdump(unsigned char *p, unsigned int len) |
| 342 |
{ |
| 343 |
unsigned char *line = p; |
| 344 |
unsigned int thisline, offset = 0; |
| 345 |
int i; |
| 346 |
|
| 347 |
while (offset < len) |
| 348 |
{ |
| 349 |
printf("%04x ", offset); |
| 350 |
thisline = len - offset; |
| 351 |
if (thisline > 16) |
| 352 |
thisline = 16; |
| 353 |
|
| 354 |
for (i = 0; i < thisline; i++) |
| 355 |
printf("%02x ", line[i]); |
| 356 |
|
| 357 |
for (; i < 16; i++) |
| 358 |
printf(" "); |
| 359 |
|
| 360 |
for (i = 0; i < thisline; i++) |
| 361 |
printf("%c", |
| 362 |
(line[i] >= 0x20 |
| 363 |
&& line[i] < 0x7f) ? line[i] : '.'); |
| 364 |
|
| 365 |
printf("\n"); |
| 366 |
offset += thisline; |
| 367 |
line += thisline; |
| 368 |
} |
| 369 |
} |
| 370 |
|
| 371 |
int |
| 372 |
load_licence(unsigned char **data) |
| 373 |
{ |
| 374 |
char path[PATH_MAX]; |
| 375 |
char *home; |
| 376 |
struct stat st; |
| 377 |
int fd; |
| 378 |
|
| 379 |
home = getenv("HOME"); |
| 380 |
if (home == NULL) |
| 381 |
return -1; |
| 382 |
|
| 383 |
STRNCPY(path, home, sizeof(path)); |
| 384 |
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
| 385 |
|
| 386 |
fd = open(path, O_RDONLY); |
| 387 |
if (fd == -1) |
| 388 |
return -1; |
| 389 |
|
| 390 |
if (fstat(fd, &st)) |
| 391 |
return -1; |
| 392 |
|
| 393 |
*data = xmalloc(st.st_size); |
| 394 |
return read(fd, *data, st.st_size); |
| 395 |
} |
| 396 |
|
| 397 |
void |
| 398 |
save_licence(unsigned char *data, int length) |
| 399 |
{ |
| 400 |
char path[PATH_MAX]; |
| 401 |
char *home; |
| 402 |
int fd; |
| 403 |
|
| 404 |
home = getenv("HOME"); |
| 405 |
if (home == NULL) |
| 406 |
return; |
| 407 |
|
| 408 |
STRNCPY(path, home, sizeof(path)); |
| 409 |
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
| 410 |
mkdir(path, 0700); |
| 411 |
|
| 412 |
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
| 413 |
|
| 414 |
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
| 415 |
if (fd == -1) |
| 416 |
{ |
| 417 |
perror("open"); |
| 418 |
return; |
| 419 |
} |
| 420 |
|
| 421 |
write(fd, data, length); |
| 422 |
close(fd); |
| 423 |
} |
Parent Directory
| 
Revision Log