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 |
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 */ |
|
#include <limits.h> /* PATH_MAX */ |
|
25 |
#include <termios.h> /* tcgetattr tcsetattr */ |
#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 |
|
#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 title[32] = ""; |
char title[32] = ""; |
44 |
char username[16]; |
char 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 = 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 |
|
int server_bpp = 8; |
53 |
|
int win_button_size = 0; /* If zero, disable single app mode */ |
54 |
BOOL bitmap_compression = True; |
BOOL bitmap_compression = True; |
55 |
BOOL sendmotion = True; |
BOOL sendmotion = True; |
56 |
BOOL orders = True; |
BOOL orders = True; |
|
BOOL licence = True; |
|
57 |
BOOL encryption = True; |
BOOL encryption = True; |
58 |
|
BOOL packet_encryption = True; |
59 |
BOOL desktop_save = True; |
BOOL desktop_save = True; |
60 |
BOOL fullscreen = False; |
BOOL fullscreen = False; |
61 |
BOOL grab_keyboard = True; |
BOOL grab_keyboard = True; |
62 |
|
BOOL hide_decorations = False; |
63 |
|
BOOL use_rdp5 = False; |
64 |
|
extern BOOL 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 |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
fprintf(stderr, "rdesktop: A Remote Desktop Protocol client.\n"); |
78 |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2002 Matt Chapman.\n"); |
fprintf(stderr, "Version " VERSION ". Copyright (C) 1999-2003 Matt Chapman.\n"); |
79 |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
fprintf(stderr, "See http://www.rdesktop.org/ for more information.\n\n"); |
80 |
|
|
81 |
fprintf(stderr, "Usage: %s [options] server\n", program); |
fprintf(stderr, "Usage: %s [options] server[:port]\n", program); |
82 |
|
#ifdef RDP2VNC |
83 |
|
fprintf(stderr, " -V: vnc port\n"); |
84 |
|
fprintf(stderr, " -E: defer time (ms)\n"); |
85 |
|
#endif |
86 |
fprintf(stderr, " -u: user name\n"); |
fprintf(stderr, " -u: user name\n"); |
87 |
fprintf(stderr, " -d: domain\n"); |
fprintf(stderr, " -d: domain\n"); |
88 |
fprintf(stderr, " -s: shell\n"); |
fprintf(stderr, " -s: shell\n"); |
89 |
|
fprintf(stderr, " -S: caption button size (single application mode)\n"); |
90 |
fprintf(stderr, " -c: working directory\n"); |
fprintf(stderr, " -c: working directory\n"); |
91 |
fprintf(stderr, " -p: password (- to prompt)\n"); |
fprintf(stderr, " -p: password (- to prompt)\n"); |
92 |
fprintf(stderr, " -n: client hostname\n"); |
fprintf(stderr, " -n: client hostname\n"); |
93 |
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"); |
94 |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
fprintf(stderr, " -g: desktop geometry (WxH)\n"); |
95 |
fprintf(stderr, " -f: full-screen mode\n"); |
fprintf(stderr, " -f: full-screen mode\n"); |
96 |
fprintf(stderr, " -b: force bitmap updates\n"); |
fprintf(stderr, " -b: force bitmap updates\n"); |
97 |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
fprintf(stderr, " -e: disable encryption (French TS)\n"); |
98 |
|
fprintf(stderr, " -E: disable encryption of everything but the logon packet\n"); |
99 |
fprintf(stderr, " -m: do not send motion events\n"); |
fprintf(stderr, " -m: do not send motion events\n"); |
100 |
fprintf(stderr, " -l: do not request licence\n"); |
fprintf(stderr, " -C: use private colour map\n"); |
|
fprintf(stderr, " -t: rdp tcp port\n"); |
|
101 |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
fprintf(stderr, " -K: keep window manager key bindings\n"); |
102 |
fprintf(stderr, " -w: window title\n"); |
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, " -5: Use RDP5 (EXPERIMENTAL!)\n"); |
106 |
} |
} |
107 |
|
|
108 |
static BOOL |
static BOOL |
145 |
int |
int |
146 |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
147 |
{ |
{ |
148 |
|
char server[64]; |
149 |
char fullhostname[64]; |
char fullhostname[64]; |
150 |
char domain[16]; |
char domain[16]; |
151 |
char password[16]; |
char password[16]; |
152 |
char shell[32]; |
char shell[128]; |
153 |
char directory[32]; |
char directory[32]; |
154 |
BOOL prompt_password; |
BOOL prompt_password, rdp_retval = False; |
155 |
struct passwd *pw; |
struct passwd *pw; |
|
char *server, *p; |
|
156 |
uint32 flags; |
uint32 flags; |
157 |
|
char *p; |
158 |
int c; |
int c; |
159 |
|
int username_option = 0; |
160 |
|
|
161 |
flags = RDP_LOGON_NORMAL; |
flags = RDP_LOGON_NORMAL; |
162 |
prompt_password = False; |
prompt_password = False; |
163 |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
domain[0] = password[0] = shell[0] = directory[0] = 0; |
164 |
strcpy(keymapname, "us"); |
strcpy(keymapname, "en-us"); |
165 |
|
|
166 |
|
#ifdef RDP2VNC |
167 |
|
#define VNCOPT "V:E:" |
168 |
|
#else |
169 |
|
#define VNCOPT |
170 |
|
#endif |
171 |
|
|
172 |
while ((c = getopt(argc, argv, "u:d:s:c: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:Dh?54")) != -1) |
173 |
{ |
{ |
174 |
switch (c) |
switch (c) |
175 |
{ |
{ |
176 |
|
#ifdef RDP2VNC |
177 |
|
case 'V': |
178 |
|
rfb_port = strtol(optarg, NULL, 10); |
179 |
|
if (rfb_port < 100) |
180 |
|
rfb_port += 5900; |
181 |
|
break; |
182 |
|
|
183 |
|
case 'E': |
184 |
|
defer_time = strtol(optarg, NULL, 10); |
185 |
|
if (defer_time < 0) |
186 |
|
defer_time = 0; |
187 |
|
break; |
188 |
|
#endif |
189 |
|
|
190 |
case 'u': |
case 'u': |
191 |
STRNCPY(username, optarg, sizeof(username)); |
STRNCPY(username, optarg, sizeof(username)); |
192 |
|
username_option = 1; |
193 |
break; |
break; |
194 |
|
|
195 |
case 'd': |
case 'd': |
200 |
STRNCPY(shell, optarg, sizeof(shell)); |
STRNCPY(shell, optarg, sizeof(shell)); |
201 |
break; |
break; |
202 |
|
|
203 |
|
case 'S': |
204 |
|
if (!strcmp(optarg, "standard")) |
205 |
|
{ |
206 |
|
win_button_size = 18; |
207 |
|
break; |
208 |
|
} |
209 |
|
|
210 |
|
win_button_size = strtol(optarg, &p, 10); |
211 |
|
|
212 |
|
if (*p) |
213 |
|
{ |
214 |
|
error("invalid button size\n"); |
215 |
|
return 1; |
216 |
|
} |
217 |
|
|
218 |
|
break; |
219 |
|
|
220 |
case 'c': |
case 'c': |
221 |
STRNCPY(directory, optarg, sizeof(directory)); |
STRNCPY(directory, optarg, sizeof(directory)); |
222 |
break; |
break; |
246 |
break; |
break; |
247 |
|
|
248 |
case 'g': |
case 'g': |
249 |
|
if (!strcmp(optarg, "workarea")) |
250 |
|
{ |
251 |
|
width = height = 0; |
252 |
|
break; |
253 |
|
} |
254 |
|
|
255 |
width = strtol(optarg, &p, 10); |
width = strtol(optarg, &p, 10); |
256 |
if (*p == 'x') |
if (*p == 'x') |
257 |
height = strtol(p + 1, NULL, 10); |
height = strtol(p + 1, NULL, 10); |
274 |
case 'e': |
case 'e': |
275 |
encryption = False; |
encryption = False; |
276 |
break; |
break; |
277 |
|
case 'E': |
278 |
|
packet_encryption = False; |
279 |
|
break; |
280 |
case 'm': |
case 'm': |
281 |
sendmotion = False; |
sendmotion = False; |
282 |
break; |
break; |
283 |
|
|
284 |
case 'l': |
case 'C': |
285 |
licence = False; |
owncolmap = True; |
|
break; |
|
|
|
|
|
case 't': |
|
|
tcp_port_rdp = strtol(optarg, NULL, 10); |
|
286 |
break; |
break; |
287 |
|
|
288 |
case 'K': |
case 'K': |
289 |
grab_keyboard = False; |
grab_keyboard = False; |
290 |
break; |
break; |
291 |
|
|
292 |
case 'w': |
case 'T': |
293 |
strncpy(title, optarg, sizeof(title)); |
STRNCPY(title, optarg, sizeof(title)); |
294 |
|
break; |
295 |
|
|
296 |
|
case 'D': |
297 |
|
hide_decorations = True; |
298 |
break; |
break; |
299 |
|
|
300 |
|
case 'a': |
301 |
|
server_bpp = strtol(optarg, NULL, 10); |
302 |
|
if (server_bpp != 8 && server_bpp != 16 && server_bpp != 15 |
303 |
|
&& server_bpp != 24) |
304 |
|
{ |
305 |
|
error("invalid server bpp\n"); |
306 |
|
return 1; |
307 |
|
} |
308 |
|
break; |
309 |
|
|
310 |
|
case '5': |
311 |
|
use_rdp5 = True; |
312 |
|
break; |
313 |
case 'h': |
case 'h': |
314 |
case '?': |
case '?': |
315 |
default: |
default: |
324 |
return 1; |
return 1; |
325 |
} |
} |
326 |
|
|
327 |
server = argv[optind]; |
STRNCPY(server, argv[optind], sizeof(server)); |
328 |
|
p = strchr(server, ':'); |
329 |
|
if (p != NULL) |
330 |
|
{ |
331 |
|
tcp_port_rdp = strtol(p + 1, NULL, 10); |
332 |
|
*p = 0; |
333 |
|
} |
334 |
|
|
335 |
if (username[0] == 0) |
if (!username_option) |
336 |
{ |
{ |
337 |
pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
338 |
if ((pw == NULL) || (pw->pw_name == NULL)) |
if ((pw == NULL) || (pw->pw_name == NULL)) |
368 |
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
strncat(title, server, sizeof(title) - sizeof("rdesktop - ")); |
369 |
} |
} |
370 |
|
|
371 |
|
#ifdef RDP2VNC |
372 |
|
rdp2vnc_connect(server, flags, domain, password, shell, directory); |
373 |
|
return 0; |
374 |
|
#else |
375 |
|
|
376 |
if (!ui_init()) |
if (!ui_init()) |
377 |
return 1; |
return 1; |
378 |
|
|
379 |
|
/* rdpsnd_init(); */ |
380 |
|
/* rdpdr_init(); */ |
381 |
|
|
382 |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
if (!rdp_connect(server, flags, domain, password, shell, directory)) |
383 |
return 1; |
return 1; |
384 |
|
|
385 |
|
/* By setting encryption to False here, we have an encrypted login |
386 |
|
packet but unencrypted transfer of other packets */ |
387 |
|
if (!packet_encryption) |
388 |
|
encryption = False; |
389 |
|
|
390 |
|
|
391 |
DEBUG(("Connection successful.\n")); |
DEBUG(("Connection successful.\n")); |
392 |
memset(password, 0, sizeof(password)); |
memset(password, 0, sizeof(password)); |
393 |
|
|
394 |
if (ui_create_window()) |
if (ui_create_window()) |
395 |
{ |
{ |
396 |
rdp_main_loop(); |
rdp_retval = rdp_main_loop(); |
397 |
ui_destroy_window(); |
ui_destroy_window(); |
398 |
} |
} |
399 |
|
|
400 |
DEBUG(("Disconnecting...\n")); |
DEBUG(("Disconnecting...\n")); |
401 |
rdp_disconnect(); |
rdp_disconnect(); |
402 |
ui_deinit(); |
ui_deinit(); |
403 |
return 0; |
|
404 |
|
if (True == rdp_retval) |
405 |
|
return 0; |
406 |
|
else |
407 |
|
return 2; |
408 |
|
|
409 |
|
#endif |
410 |
|
|
411 |
|
} |
412 |
|
|
413 |
|
#ifdef EGD_SOCKET |
414 |
|
/* Read 32 random bytes from PRNGD or EGD socket (based on OpenSSL RAND_egd) */ |
415 |
|
static BOOL |
416 |
|
generate_random_egd(uint8 * buf) |
417 |
|
{ |
418 |
|
struct sockaddr_un addr; |
419 |
|
BOOL ret = False; |
420 |
|
int fd; |
421 |
|
|
422 |
|
fd = socket(AF_UNIX, SOCK_STREAM, 0); |
423 |
|
if (fd == -1) |
424 |
|
return False; |
425 |
|
|
426 |
|
addr.sun_family = AF_UNIX; |
427 |
|
memcpy(addr.sun_path, EGD_SOCKET, sizeof(EGD_SOCKET)); |
428 |
|
if (connect(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1) |
429 |
|
goto err; |
430 |
|
|
431 |
|
/* PRNGD and EGD use a simple communications protocol */ |
432 |
|
buf[0] = 1; /* Non-blocking (similar to /dev/urandom) */ |
433 |
|
buf[1] = 32; /* Number of requested random bytes */ |
434 |
|
if (write(fd, buf, 2) != 2) |
435 |
|
goto err; |
436 |
|
|
437 |
|
if ((read(fd, buf, 1) != 1) || (buf[0] == 0)) /* Available? */ |
438 |
|
goto err; |
439 |
|
|
440 |
|
if (read(fd, buf, 32) != 32) |
441 |
|
goto err; |
442 |
|
|
443 |
|
ret = True; |
444 |
|
|
445 |
|
err: |
446 |
|
close(fd); |
447 |
|
return ret; |
448 |
} |
} |
449 |
|
#endif |
450 |
|
|
451 |
/* Generate a 32-byte random for the secure transport code. */ |
/* Generate a 32-byte random for the secure transport code. */ |
452 |
void |
void |
454 |
{ |
{ |
455 |
struct stat st; |
struct stat st; |
456 |
struct tms tmsbuf; |
struct tms tmsbuf; |
457 |
uint32 *r = (uint32 *) random; |
MD5_CTX md5; |
458 |
int fd; |
uint32 *r; |
459 |
|
int fd, n; |
460 |
|
|
461 |
/* If we have a kernel random device, use it. */ |
/* If we have a kernel random device, try that first */ |
462 |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
if (((fd = open("/dev/urandom", O_RDONLY)) != -1) |
463 |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
|| ((fd = open("/dev/random", O_RDONLY)) != -1)) |
464 |
{ |
{ |
465 |
read(fd, random, 32); |
n = read(fd, random, 32); |
466 |
close(fd); |
close(fd); |
467 |
return; |
if (n == 32) |
468 |
|
return; |
469 |
} |
} |
470 |
|
|
471 |
|
#ifdef EGD_SOCKET |
472 |
|
/* As a second preference use an EGD */ |
473 |
|
if (generate_random_egd(random)) |
474 |
|
return; |
475 |
|
#endif |
476 |
|
|
477 |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
/* Otherwise use whatever entropy we can gather - ideas welcome. */ |
478 |
|
r = (uint32 *) random; |
479 |
r[0] = (getpid()) | (getppid() << 16); |
r[0] = (getpid()) | (getppid() << 16); |
480 |
r[1] = (getuid()) | (getgid() << 16); |
r[1] = (getuid()) | (getgid() << 16); |
481 |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
r[2] = times(&tmsbuf); /* system uptime (clocks) */ |
484 |
r[5] = st.st_atime; |
r[5] = st.st_atime; |
485 |
r[6] = st.st_mtime; |
r[6] = st.st_mtime; |
486 |
r[7] = st.st_ctime; |
r[7] = st.st_ctime; |
487 |
|
|
488 |
|
/* Hash both halves with MD5 to obscure possible patterns */ |
489 |
|
MD5_Init(&md5); |
490 |
|
MD5_Update(&md5, random, 16); |
491 |
|
MD5_Final(random, &md5); |
492 |
|
MD5_Update(&md5, random + 16, 16); |
493 |
|
MD5_Final(random + 16, &md5); |
494 |
} |
} |
495 |
|
|
496 |
/* malloc; exit if out of memory */ |
/* malloc; exit if out of memory */ |
539 |
va_end(ap); |
va_end(ap); |
540 |
} |
} |
541 |
|
|
542 |
|
/* report a warning */ |
543 |
|
void |
544 |
|
warning(char *format, ...) |
545 |
|
{ |
546 |
|
va_list ap; |
547 |
|
|
548 |
|
fprintf(stderr, "WARNING: "); |
549 |
|
|
550 |
|
va_start(ap, format); |
551 |
|
vfprintf(stderr, format, ap); |
552 |
|
va_end(ap); |
553 |
|
} |
554 |
|
|
555 |
/* report an unimplemented protocol feature */ |
/* report an unimplemented protocol feature */ |
556 |
void |
void |
557 |
unimpl(char *format, ...) |
unimpl(char *format, ...) |
567 |
|
|
568 |
/* produce a hex dump */ |
/* produce a hex dump */ |
569 |
void |
void |
570 |
hexdump(unsigned char *p, unsigned int len) |
hexdump(unsigned char *p, int len) |
571 |
{ |
{ |
572 |
unsigned char *line = p; |
unsigned char *line = p; |
573 |
unsigned int thisline, offset = 0; |
int i, thisline, offset = 0; |
|
int i; |
|
574 |
|
|
575 |
while (offset < len) |
while (offset < len) |
576 |
{ |
{ |
594 |
} |
} |
595 |
} |
} |
596 |
|
|
597 |
#ifdef SAVE_LICENCE |
|
598 |
int |
int |
599 |
load_licence(unsigned char **data) |
load_licence(unsigned char **data) |
600 |
{ |
{ |
601 |
char path[PATH_MAX]; |
char *home, *path; |
|
char *home; |
|
602 |
struct stat st; |
struct stat st; |
603 |
int fd; |
int fd, length; |
604 |
|
|
605 |
home = getenv("HOME"); |
home = getenv("HOME"); |
606 |
if (home == NULL) |
if (home == NULL) |
607 |
return -1; |
return -1; |
608 |
|
|
609 |
STRNCPY(path, home, sizeof(path)); |
path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence.")); |
610 |
strncat(path, "/.rdesktop/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
611 |
|
|
612 |
fd = open(path, O_RDONLY); |
fd = open(path, O_RDONLY); |
613 |
if (fd == -1) |
if (fd == -1) |
616 |
if (fstat(fd, &st)) |
if (fstat(fd, &st)) |
617 |
return -1; |
return -1; |
618 |
|
|
619 |
*data = xmalloc(st.st_size); |
*data = (uint8 *) xmalloc(st.st_size); |
620 |
return read(fd, *data, st.st_size); |
length = read(fd, *data, st.st_size); |
621 |
|
close(fd); |
622 |
|
xfree(path); |
623 |
|
return length; |
624 |
} |
} |
625 |
|
|
626 |
void |
void |
627 |
save_licence(unsigned char *data, int length) |
save_licence(unsigned char *data, int length) |
628 |
{ |
{ |
629 |
char path[PATH_MAX]; |
char *home, *path, *tmppath; |
|
char *home; |
|
630 |
int fd; |
int fd; |
631 |
|
|
632 |
home = getenv("HOME"); |
home = getenv("HOME"); |
633 |
if (home == NULL) |
if (home == NULL) |
634 |
return; |
return; |
635 |
|
|
636 |
STRNCPY(path, home, sizeof(path)); |
path = (char *) xmalloc(strlen(home) + strlen(hostname) + sizeof("/.rdesktop/licence.")); |
637 |
strncat(path, "/.rdesktop", sizeof(path) - strlen(path) - 1); |
|
638 |
mkdir(path, 0700); |
sprintf(path, "%s/.rdesktop", home); |
639 |
|
if ((mkdir(path, 0700) == -1) && errno != EEXIST) |
640 |
|
{ |
641 |
|
perror(path); |
642 |
|
return; |
643 |
|
} |
644 |
|
|
645 |
|
/* write licence to licence.hostname.new, then atomically rename to licence.hostname */ |
646 |
|
|
647 |
strncat(path, "/licence", sizeof(path) - strlen(path) - 1); |
sprintf(path, "%s/.rdesktop/licence.%s", home, hostname); |
648 |
|
tmppath = (char *) xmalloc(strlen(path) + sizeof(".new")); |
649 |
|
strcpy(tmppath, path); |
650 |
|
strcat(tmppath, ".new"); |
651 |
|
|
652 |
fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
fd = open(tmppath, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
653 |
if (fd == -1) |
if (fd == -1) |
654 |
{ |
{ |
655 |
perror("open"); |
perror(tmppath); |
656 |
return; |
return; |
657 |
} |
} |
658 |
|
|
659 |
write(fd, data, length); |
if (write(fd, data, length) != length) |
660 |
|
{ |
661 |
|
perror(tmppath); |
662 |
|
unlink(tmppath); |
663 |
|
} |
664 |
|
else if (rename(tmppath, path) == -1) |
665 |
|
{ |
666 |
|
perror(path); |
667 |
|
unlink(tmppath); |
668 |
|
} |
669 |
|
|
670 |
close(fd); |
close(fd); |
671 |
|
xfree(tmppath); |
672 |
|
xfree(path); |
673 |
} |
} |
|
#endif |
|