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 1999-2002 |
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 |
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 <errno.h> /* save licence uses it. */ |
25 |
#include <pwd.h> /* getpwuid */ |
#include <pwd.h> /* getpwuid */ |
|
#include <limits.h> /* PATH_MAX */ |
|
26 |
#include <termios.h> /* tcgetattr tcsetattr */ |
#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 */ |
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 width = 800; /* If width or height are reset to zero, the geometry will |
49 |
|
be fetched from _NET_WORKAREA */ |
50 |
int height = 600; |
int height = 600; |
51 |
int tcp_port_rdp = TCP_PORT_RDP; |
int tcp_port_rdp = TCP_PORT_RDP; |
52 |
BOOL bitmap_compression = True; |
BOOL bitmap_compression = True; |
56 |
BOOL desktop_save = True; |
BOOL desktop_save = True; |
57 |
BOOL fullscreen = False; |
BOOL fullscreen = False; |
58 |
BOOL grab_keyboard = True; |
BOOL grab_keyboard = True; |
59 |
|
BOOL hide_decorations = False; |
60 |
|
extern BOOL owncolmap; |
61 |
|
|
62 |
/* Display usage information */ |
/* Display usage information */ |
63 |
static void |
static void |
64 |
usage(char *program) |
usage(char *program) |
65 |
{ |
{ |
66 |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
67 |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n"); |
68 |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
69 |
|
|
70 |
fprintf(stderr, "Usage: %s [options] server[:port]\n", program); |
fprintf(stderr, "Usage: %s [options] server[:port]\n", program); |
74 |
fprintf(stderr, " -c: working directory\n"); |
fprintf(stderr, " -c: working directory\n"); |
75 |
fprintf(stderr, " -p: password (- to prompt)\n"); |
fprintf(stderr, " -p: password (- to prompt)\n"); |
76 |
fprintf(stderr, " -n: client hostname\n"); |
fprintf(stderr, " -n: client hostname\n"); |
77 |
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"); |
78 |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
79 |
fprintf(stderr, " -f: full-screen mode\n"); |
fprintf(stderr, " -f: full-screen mode\n"); |
80 |
fprintf(stderr, " -b: force bitmap updates\n"); |
fprintf(stderr, " -b: force bitmap updates\n"); |
81 |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
82 |
fprintf(stderr, " -m: do not send motion events\n"); |
fprintf(stderr, " -m: do not send motion events\n"); |
83 |
|
fprintf(stderr, " -C: use private colour map\n"); |
84 |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
85 |
fprintf(stderr, " -w: window title\n"); |
fprintf(stderr, " -T: window title\n"); |
86 |
|
fprintf(stderr, " -D: hide window manager decorations\n"); |
87 |
} |
} |
88 |
|
|
89 |
static BOOL |
static BOOL |
130 |
char fullhostname[64]; |
char fullhostname[64]; |
131 |
char domain[16]; |
char domain[16]; |
132 |
char password[16]; |
char password[16]; |
133 |
char shell[32]; |
char shell[128]; |
134 |
char directory[32]; |
char directory[32]; |
135 |
BOOL prompt_password; |
BOOL prompt_password; |
136 |
struct passwd *pw; |
struct passwd *pw; |
137 |
uint32 flags; |
uint32 flags; |
138 |
char *p; |
char *p; |
139 |
int c; |
int c; |
140 |
|
int username_option = 0; |
141 |
|
|
142 |
flags = RDP_LOGON_NORMAL; |
flags = RDP_LOGON_NORMAL; |
143 |
prompt_password = False; |
prompt_password = False; |
144 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
145 |
strcpy(keymapname, "us"); |
strcpy(keymapname, "en-us"); |
146 |
|
|
147 |
while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:fbemKw:h?")) != -1) |
while ((c = getopt(argc, argv, "u:d:s:c:p:n:k:g:fbemCKT:Dh?")) != -1) |
148 |
{ |
{ |
149 |
switch (c) |
switch (c) |
150 |
{ |
{ |
151 |
case 'u': |
case 'u': |
152 |
STRNCPY(username, optarg, sizeof(username)); |
STRNCPY(username, optarg, sizeof(username)); |
153 |
|
username_option = 1; |
154 |
break; |
break; |
155 |
|
|
156 |
case 'd': |
case 'd': |
190 |
break; |
break; |
191 |
|
|
192 |
case 'g': |
case 'g': |
193 |
|
if (!strcmp(optarg, "workarea")) |
194 |
|
{ |
195 |
|
width = height = 0; |
196 |
|
break; |
197 |
|
} |
198 |
|
|
199 |
width = strtol(optarg, &p, 10); |
width = strtol(optarg, &p, 10); |
200 |
if (*p == 'x') |
if (*p == 'x') |
201 |
height = strtol(p + 1, NULL, 10); |
height = strtol(p + 1, NULL, 10); |
223 |
sendmotion = False; |
sendmotion = False; |
224 |
break; |
break; |
225 |
|
|
226 |
|
case 'C': |
227 |
|
owncolmap = True; |
228 |
|
break; |
229 |
|
|
230 |
case 'K': |
case 'K': |
231 |
grab_keyboard = False; |
grab_keyboard = False; |
232 |
break; |
break; |
233 |
|
|
234 |
case 'w': |
case 'T': |
235 |
STRNCPY(title, optarg, sizeof(title)); |
STRNCPY(title, optarg, sizeof(title)); |
236 |
break; |
break; |
237 |
|
|
238 |
|
case 'D': |
239 |
|
hide_decorations = True; |
240 |
|
break; |
241 |
|
|
242 |
case 'h': |
case 'h': |
243 |
case '?': |
case '?': |
244 |
default: |
default: |
261 |
*p = 0; |
*p = 0; |
262 |
} |
} |
263 |
|
|
264 |
if (username[0] == 0) |
if (!username_option) |
265 |
{ |
{ |
266 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
267 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
333 |
|
|
334 |
addr.sun_family = AF_UNIX; |
addr.sun_family = AF_UNIX; |
335 |
memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET)); |
memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET)); |
336 |
if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) == -1) |
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) |
337 |
goto err; |
goto err; |
338 |
|
|
339 |
/* PRNGD and EGD use a simple communications protocol */ |
/* PRNGD and EGD use a simple communications protocol */ |
340 |
buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */ |
buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */ |
341 |
buf[1] = 32; /* Number of requested random bytes */ |
buf[1] = 32; /* Number of requested random bytes */ |
342 |
if (write(fd, buf, 2) != 2) |
if (write(fd, buf, 2) != 2) |
343 |
goto err; |
goto err; |
344 |
|
|
345 |
if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */ |
if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */ |
346 |
goto err; |
goto err; |
347 |
|
|
348 |
if (read(fd, buf, 32) != 32) |
if (read(fd, buf, 32) != 32) |
350 |
|
|
351 |
ret = True; |
ret = True; |
352 |
|
|
353 |
err: |
err: |
354 |
close(fd); |
close(fd); |
355 |
return ret; |
return ret; |
356 |
} |
} |
383 |
#endif |
#endif |
384 |
|
|
385 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
386 |
r = (uint32 *)random; |
r = (uint32 *) random; |
387 |
r[0] = (getpid()) | (getppid() << 16); |
r[0] = (getpid()) | (getppid() << 16); |
388 |
r[1] = (getuid()) | (getgid() << 16); |
r[1] = (getuid()) | (getgid() << 16); |
389 |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
395 |
|
|
396 |
/* Hash both halves with MD5 to obscure possible patterns */ |
/* Hash both halves with MD5 to obscure possible patterns */ |
397 |
MD5_Init(&md5); |
MD5_Init(&md5); |
398 |
MD5_Update(&md5, random, 16); |
MD5_Update(&md5, random, 16); |
399 |
MD5_Final(random, &md5); |
MD5_Final(random, &md5); |
400 |
MD5_Update(&md5, random+16, 16); |
MD5_Update(&md5, random + 16, 16); |
401 |
MD5_Final(random+16, &md5); |
MD5_Final(random + 16, &md5); |
402 |
} |
} |
403 |
|
|
404 |
/* malloc; exit if out of memory */ |
/* malloc; exit if out of memory */ |
447 |
va_end(ap); |
va_end(ap); |
448 |
} |
} |
449 |
|
|
450 |
|
/* report a warning */ |
451 |
|
void |
452 |
|
warning(char *format, ...) |
453 |
|
{ |
454 |
|
va_list ap; |
455 |
|
|
456 |
|
fprintf(stderr, "WARNING: "); |
457 |
|
|
458 |
|
va_start(ap, format); |
459 |
|
vfprintf(stderr, format, ap); |
460 |
|
va_end(ap); |
461 |
|
} |
462 |
|
|
463 |
/* report an unimplemented protocol feature */ |
/* report an unimplemented protocol feature */ |
464 |
void |
void |
465 |
unimpl(char *format, ...) |
unimpl(char *format, ...) |
507 |
int |
int |
508 |
load_licence(unsigned char **data) |
load_licence(unsigned char **data) |
509 |
{ |
{ |
510 |
char path[PATH_MAX]; |
char *path; |
511 |
char *home; |
char *home; |
512 |
struct stat st; |
struct stat st; |
513 |
int fd; |
int fd; |
516 |
if (home == NULL) |
if (home == NULL) |
517 |
return -1; |
return -1; |
518 |
|
|
519 |
STRNCPY(path, home, sizeof(path)); |
path = xmalloc(strlen(home) + strlen(hostname) + 20); |
520 |
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
521 |
|
|
522 |
fd = open(path, O_RDONLY); |
fd = open(path, O_RDONLY); |
523 |
if (fd == -1) |
if (fd == -1) |
533 |
void |
void |
534 |
save_licence(unsigned char *data, int length) |
save_licence(unsigned char *data, int length) |
535 |
{ |
{ |
536 |
char path[PATH_MAX]; |
char *fpath; /* file path for licence */ |
537 |
|
char *fname, *fnamewrk; /* file name for licence .inkl path. */ |
538 |
char *home; |
char *home; |
539 |
int fd; |
uint32 y; |
540 |
|
struct flock fnfl; |
541 |
|
int fnfd, fnwrkfd, i, wlen; |
542 |
|
struct stream s, *s_ptr; |
543 |
|
uint32 len; |
544 |
|
|
545 |
|
/* Construct a stream, so that we can use macros to extract the |
546 |
|
* licence. |
547 |
|
*/ |
548 |
|
s_ptr = &s; |
549 |
|
s_ptr->p = data; |
550 |
|
/* Skip first two bytes */ |
551 |
|
in_uint16(s_ptr, len); |
552 |
|
|
553 |
|
/* Skip three strings */ |
554 |
|
for (i = 0; i < 3; i++) |
555 |
|
{ |
556 |
|
in_uint32(s_ptr, len); |
557 |
|
s_ptr->p += len; |
558 |
|
/* Make sure that we won't be past the end of data after |
559 |
|
* reading the next length value |
560 |
|
*/ |
561 |
|
if ((s_ptr->p) + 4 > data + length) |
562 |
|
{ |
563 |
|
printf("Error in parsing licence key.\n"); |
564 |
|
printf("Strings %d end value %x > supplied length (%x)\n", |
565 |
|
i, s_ptr->p, data + length); |
566 |
|
return; |
567 |
|
} |
568 |
|
} |
569 |
|
in_uint32(s_ptr, len); |
570 |
|
if (s_ptr->p + len > data + length) |
571 |
|
{ |
572 |
|
printf("Error in parsing licence key.\n"); |
573 |
|
printf("End of licence %x > supplied length (%x)\n", s_ptr->p + len, data + length); |
574 |
|
return; |
575 |
|
} |
576 |
|
|
577 |
home = getenv("HOME"); |
home = getenv("HOME"); |
578 |
if (home == NULL) |
if (home == NULL) |
579 |
return; |
return; |
580 |
|
|
581 |
STRNCPY(path, home, sizeof(path)); |
/* set and create the directory -- if it doesn't exist. */ |
582 |
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
fpath = xmalloc(strlen(home) + 11); |
583 |
mkdir(path, 0700); |
STRNCPY(fpath, home, strlen(home) + 1); |
584 |
|
|
585 |
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
sprintf(fpath, "%s/.rdesktop", fpath); |
586 |
|
if (mkdir(fpath, 0700) == -1 && errno != EEXIST) |
587 |
|
{ |
588 |
|
perror("mkdir"); |
589 |
|
exit(1); |
590 |
|
} |
591 |
|
|
592 |
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
/* set the real licence filename, and put a write lock on it. */ |
593 |
if (fd == -1) |
fname = xmalloc(strlen(fpath) + strlen(hostname) + 10); |
594 |
|
sprintf(fname, "%s/licence.%s", fpath, hostname); |
595 |
|
fnfd = open(fname, O_RDONLY); |
596 |
|
if (fnfd != -1) |
597 |
|
{ |
598 |
|
fnfl.l_type = F_WRLCK; |
599 |
|
fnfl.l_whence = SEEK_SET; |
600 |
|
fnfl.l_start = 0; |
601 |
|
fnfl.l_len = 1; |
602 |
|
fcntl(fnfd, F_SETLK, &fnfl); |
603 |
|
} |
604 |
|
|
605 |
|
/* create a temporary licence file */ |
606 |
|
fnamewrk = xmalloc(strlen(fname) + 12); |
607 |
|
for (y = 0;; y++) |
608 |
|
{ |
609 |
|
sprintf(fnamewrk, "%s.%lu", fname, y); |
610 |
|
fnwrkfd = open(fnamewrk, O_WRONLY | O_CREAT | O_EXCL, 0600); |
611 |
|
if (fnwrkfd == -1) |
612 |
|
{ |
613 |
|
if (errno == EINTR || errno == EEXIST) |
614 |
|
continue; |
615 |
|
perror("create"); |
616 |
|
exit(1); |
617 |
|
} |
618 |
|
break; |
619 |
|
} |
620 |
|
/* write to the licence file */ |
621 |
|
for (y = 0; y < len;) |
622 |
{ |
{ |
623 |
perror("open"); |
do |
624 |
return; |
{ |
625 |
|
wlen = write(fnwrkfd, s_ptr->p + y, len - y); |
626 |
|
} |
627 |
|
while (wlen == -1 && errno == EINTR); |
628 |
|
if (wlen < 1) |
629 |
|
{ |
630 |
|
perror("write"); |
631 |
|
unlink(fnamewrk); |
632 |
|
exit(1); |
633 |
|
} |
634 |
|
y += wlen; |
635 |
|
} |
636 |
|
|
637 |
|
/* close the file and rename it to fname */ |
638 |
|
if (close(fnwrkfd) == -1) |
639 |
|
{ |
640 |
|
perror("close"); |
641 |
|
unlink(fnamewrk); |
642 |
|
exit(1); |
643 |
|
} |
644 |
|
if (rename(fnamewrk, fname) == -1) |
645 |
|
{ |
646 |
|
perror("rename"); |
647 |
|
unlink(fnamewrk); |
648 |
|
exit(1); |
649 |
|
} |
650 |
|
/* close the file lock on fname */ |
651 |
|
if (fnfd != -1) |
652 |
|
{ |
653 |
|
fnfl.l_type = F_UNLCK; |
654 |
|
fnfl.l_whence = SEEK_SET; |
655 |
|
fnfl.l_start = 0; |
656 |
|
fnfl.l_len = 1; |
657 |
|
fcntl(fnfd, F_SETLK, &fnfl); |
658 |
|
close(fnfd); |
659 |
} |
} |
660 |
|
|
|
write(fd, data, length); |
|
|
close(fd); |
|
661 |
} |
} |
662 |
#endif |
#endif |