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1 | /* | |
2 | * "$Id$" | |
3 | * | |
4 | * User, system, and password routines for CUPS. | |
5 | * | |
6 | * Copyright 2007-2013 by Apple Inc. | |
7 | * Copyright 1997-2006 by Easy Software Products. | |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | */ | |
17 | ||
18 | /* | |
19 | * Include necessary headers... | |
20 | */ | |
21 | ||
22 | #include "cups-private.h" | |
23 | #include <stdlib.h> | |
24 | #include <sys/stat.h> | |
25 | #ifdef WIN32 | |
26 | # include <windows.h> | |
27 | #else | |
28 | # include <pwd.h> | |
29 | # include <termios.h> | |
30 | # include <sys/utsname.h> | |
31 | #endif /* WIN32 */ | |
32 | ||
33 | ||
34 | /* | |
35 | * Local constants... | |
36 | */ | |
37 | ||
38 | #define _CUPS_PASSCHAR '*' /* Character that is echoed for password */ | |
39 | ||
40 | ||
41 | /* | |
42 | * Local functions... | |
43 | */ | |
44 | ||
45 | static void cups_read_client_conf(cups_file_t *fp, | |
46 | _cups_globals_t *cg, | |
47 | const char *cups_encryption, | |
48 | const char *cups_server, | |
49 | const char *cups_user, | |
50 | #ifdef HAVE_GSSAPI | |
51 | const char *cups_gssservicename, | |
52 | #endif /* HAVE_GSSAPI */ | |
53 | const char *cups_anyroot, | |
54 | const char *cups_expiredroot, | |
55 | const char *cups_expiredcerts); | |
56 | ||
57 | ||
58 | /* | |
59 | * 'cupsEncryption()' - Get the current encryption settings. | |
60 | * | |
61 | * The default encryption setting comes from the CUPS_ENCRYPTION | |
62 | * environment variable, then the ~/.cups/client.conf file, and finally the | |
63 | * /etc/cups/client.conf file. If not set, the default is | |
64 | * @code HTTP_ENCRYPTION_IF_REQUESTED@. | |
65 | * | |
66 | * Note: The current encryption setting is tracked separately for each thread | |
67 | * in a program. Multi-threaded programs that override the setting via the | |
68 | * @link cupsSetEncryption@ function need to do so in each thread for the same | |
69 | * setting to be used. | |
70 | */ | |
71 | ||
72 | http_encryption_t /* O - Encryption settings */ | |
73 | cupsEncryption(void) | |
74 | { | |
75 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
76 | ||
77 | ||
78 | if (cg->encryption == (http_encryption_t)-1) | |
79 | _cupsSetDefaults(); | |
80 | ||
81 | return (cg->encryption); | |
82 | } | |
83 | ||
84 | ||
85 | /* | |
86 | * 'cupsGetPassword()' - Get a password from the user. | |
87 | * | |
88 | * Uses the current password callback function. Returns @code NULL@ if the | |
89 | * user does not provide a password. | |
90 | * | |
91 | * Note: The current password callback function is tracked separately for each | |
92 | * thread in a program. Multi-threaded programs that override the setting via | |
93 | * the @link cupsSetPasswordCB@ or @link cupsSetPasswordCB2@ functions need to | |
94 | * do so in each thread for the same function to be used. | |
95 | */ | |
96 | ||
97 | const char * /* O - Password */ | |
98 | cupsGetPassword(const char *prompt) /* I - Prompt string */ | |
99 | { | |
100 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
101 | ||
102 | ||
103 | return ((cg->password_cb)(prompt, NULL, NULL, NULL, cg->password_data)); | |
104 | } | |
105 | ||
106 | ||
107 | /* | |
108 | * 'cupsGetPassword2()' - Get a password from the user using the advanced | |
109 | * password callback. | |
110 | * | |
111 | * Uses the current password callback function. Returns @code NULL@ if the | |
112 | * user does not provide a password. | |
113 | * | |
114 | * Note: The current password callback function is tracked separately for each | |
115 | * thread in a program. Multi-threaded programs that override the setting via | |
116 | * the @link cupsSetPasswordCB@ or @link cupsSetPasswordCB2@ functions need to | |
117 | * do so in each thread for the same function to be used. | |
118 | * | |
119 | * @since CUPS 1.4/OS X 10.6@ | |
120 | */ | |
121 | ||
122 | const char * /* O - Password */ | |
123 | cupsGetPassword2(const char *prompt, /* I - Prompt string */ | |
124 | http_t *http, /* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */ | |
125 | const char *method, /* I - Request method ("GET", "POST", "PUT") */ | |
126 | const char *resource) /* I - Resource path */ | |
127 | { | |
128 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
129 | ||
130 | ||
131 | if (!http) | |
132 | http = _cupsConnect(); | |
133 | ||
134 | return ((cg->password_cb)(prompt, http, method, resource, cg->password_data)); | |
135 | } | |
136 | ||
137 | ||
138 | /* | |
139 | * 'cupsServer()' - Return the hostname/address of the current server. | |
140 | * | |
141 | * The default server comes from the CUPS_SERVER environment variable, then the | |
142 | * ~/.cups/client.conf file, and finally the /etc/cups/client.conf file. If not | |
143 | * set, the default is the local system - either "localhost" or a domain socket | |
144 | * path. | |
145 | * | |
146 | * The returned value can be a fully-qualified hostname, a numeric IPv4 or IPv6 | |
147 | * address, or a domain socket pathname. | |
148 | * | |
149 | * Note: The current server is tracked separately for each thread in a program. | |
150 | * Multi-threaded programs that override the server via the | |
151 | * @link cupsSetServer@ function need to do so in each thread for the same | |
152 | * server to be used. | |
153 | */ | |
154 | ||
155 | const char * /* O - Server name */ | |
156 | cupsServer(void) | |
157 | { | |
158 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
159 | ||
160 | ||
161 | if (!cg->server[0]) | |
162 | _cupsSetDefaults(); | |
163 | ||
164 | return (cg->server); | |
165 | } | |
166 | ||
167 | ||
168 | /* | |
169 | * 'cupsSetClientCertCB()' - Set the client certificate callback. | |
170 | * | |
171 | * Pass @code NULL@ to restore the default callback. | |
172 | * | |
173 | * Note: The current certificate callback is tracked separately for each thread | |
174 | * in a program. Multi-threaded programs that override the callback need to do | |
175 | * so in each thread for the same callback to be used. | |
176 | * | |
177 | * @since CUPS 1.5/OS X 10.7@ | |
178 | */ | |
179 | ||
180 | void | |
181 | cupsSetClientCertCB( | |
182 | cups_client_cert_cb_t cb, /* I - Callback function */ | |
183 | void *user_data) /* I - User data pointer */ | |
184 | { | |
185 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
186 | ||
187 | ||
188 | cg->client_cert_cb = cb; | |
189 | cg->client_cert_data = user_data; | |
190 | } | |
191 | ||
192 | ||
193 | /* | |
194 | * 'cupsSetCredentials()' - Set the default credentials to be used for SSL/TLS | |
195 | * connections. | |
196 | * | |
197 | * Note: The default credentials are tracked separately for each thread in a | |
198 | * program. Multi-threaded programs that override the setting need to do so in | |
199 | * each thread for the same setting to be used. | |
200 | * | |
201 | * @since CUPS 1.5/OS X 10.7@ | |
202 | */ | |
203 | ||
204 | int /* O - Status of call (0 = success) */ | |
205 | cupsSetCredentials( | |
206 | cups_array_t *credentials) /* I - Array of credentials */ | |
207 | { | |
208 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
209 | ||
210 | ||
211 | if (cupsArrayCount(credentials) < 1) | |
212 | return (-1); | |
213 | ||
214 | _httpFreeCredentials(cg->tls_credentials); | |
215 | cg->tls_credentials = _httpCreateCredentials(credentials); | |
216 | ||
217 | return (cg->tls_credentials ? 0 : -1); | |
218 | } | |
219 | ||
220 | ||
221 | /* | |
222 | * 'cupsSetEncryption()' - Set the encryption preference. | |
223 | * | |
224 | * The default encryption setting comes from the CUPS_ENCRYPTION | |
225 | * environment variable, then the ~/.cups/client.conf file, and finally the | |
226 | * /etc/cups/client.conf file. If not set, the default is | |
227 | * @code HTTP_ENCRYPTION_IF_REQUESTED@. | |
228 | * | |
229 | * Note: The current encryption setting is tracked separately for each thread | |
230 | * in a program. Multi-threaded programs that override the setting need to do | |
231 | * so in each thread for the same setting to be used. | |
232 | */ | |
233 | ||
234 | void | |
235 | cupsSetEncryption(http_encryption_t e) /* I - New encryption preference */ | |
236 | { | |
237 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
238 | ||
239 | ||
240 | cg->encryption = e; | |
241 | ||
242 | if (cg->http) | |
243 | httpEncryption(cg->http, e); | |
244 | } | |
245 | ||
246 | ||
247 | /* | |
248 | * 'cupsSetPasswordCB()' - Set the password callback for CUPS. | |
249 | * | |
250 | * Pass @code NULL@ to restore the default (console) password callback, which | |
251 | * reads the password from the console. Programs should call either this | |
252 | * function or @link cupsSetPasswordCB2@, as only one callback can be registered | |
253 | * by a program per thread. | |
254 | * | |
255 | * Note: The current password callback is tracked separately for each thread | |
256 | * in a program. Multi-threaded programs that override the callback need to do | |
257 | * so in each thread for the same callback to be used. | |
258 | */ | |
259 | ||
260 | void | |
261 | cupsSetPasswordCB(cups_password_cb_t cb)/* I - Callback function */ | |
262 | { | |
263 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
264 | ||
265 | ||
266 | if (cb == (cups_password_cb_t)0) | |
267 | cg->password_cb = (cups_password_cb2_t)_cupsGetPassword; | |
268 | else | |
269 | cg->password_cb = (cups_password_cb2_t)cb; | |
270 | ||
271 | cg->password_data = NULL; | |
272 | } | |
273 | ||
274 | ||
275 | /* | |
276 | * 'cupsSetPasswordCB2()' - Set the advanced password callback for CUPS. | |
277 | * | |
278 | * Pass @code NULL@ to restore the default (console) password callback, which | |
279 | * reads the password from the console. Programs should call either this | |
280 | * function or @link cupsSetPasswordCB2@, as only one callback can be registered | |
281 | * by a program per thread. | |
282 | * | |
283 | * Note: The current password callback is tracked separately for each thread | |
284 | * in a program. Multi-threaded programs that override the callback need to do | |
285 | * so in each thread for the same callback to be used. | |
286 | * | |
287 | * @since CUPS 1.4/OS X 10.6@ | |
288 | */ | |
289 | ||
290 | void | |
291 | cupsSetPasswordCB2( | |
292 | cups_password_cb2_t cb, /* I - Callback function */ | |
293 | void *user_data) /* I - User data pointer */ | |
294 | { | |
295 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
296 | ||
297 | ||
298 | if (cb == (cups_password_cb2_t)0) | |
299 | cg->password_cb = (cups_password_cb2_t)_cupsGetPassword; | |
300 | else | |
301 | cg->password_cb = cb; | |
302 | ||
303 | cg->password_data = user_data; | |
304 | } | |
305 | ||
306 | ||
307 | /* | |
308 | * 'cupsSetServer()' - Set the default server name and port. | |
309 | * | |
310 | * The "server" string can be a fully-qualified hostname, a numeric | |
311 | * IPv4 or IPv6 address, or a domain socket pathname. Hostnames and numeric IP | |
312 | * addresses can be optionally followed by a colon and port number to override | |
313 | * the default port 631, e.g. "hostname:8631". Pass @code NULL@ to restore the | |
314 | * default server name and port. | |
315 | * | |
316 | * Note: The current server is tracked separately for each thread in a program. | |
317 | * Multi-threaded programs that override the server need to do so in each | |
318 | * thread for the same server to be used. | |
319 | */ | |
320 | ||
321 | void | |
322 | cupsSetServer(const char *server) /* I - Server name */ | |
323 | { | |
324 | char *options, /* Options */ | |
325 | *port; /* Pointer to port */ | |
326 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
327 | ||
328 | ||
329 | if (server) | |
330 | { | |
331 | strlcpy(cg->server, server, sizeof(cg->server)); | |
332 | ||
333 | if (cg->server[0] != '/' && (options = strrchr(cg->server, '/')) != NULL) | |
334 | { | |
335 | *options++ = '\0'; | |
336 | ||
337 | if (!strcmp(options, "version=1.0")) | |
338 | cg->server_version = 10; | |
339 | else if (!strcmp(options, "version=1.1")) | |
340 | cg->server_version = 11; | |
341 | else if (!strcmp(options, "version=2.0")) | |
342 | cg->server_version = 20; | |
343 | else if (!strcmp(options, "version=2.1")) | |
344 | cg->server_version = 21; | |
345 | else if (!strcmp(options, "version=2.2")) | |
346 | cg->server_version = 22; | |
347 | } | |
348 | else | |
349 | cg->server_version = 20; | |
350 | ||
351 | if (cg->server[0] != '/' && (port = strrchr(cg->server, ':')) != NULL && | |
352 | !strchr(port, ']') && isdigit(port[1] & 255)) | |
353 | { | |
354 | *port++ = '\0'; | |
355 | ||
356 | cg->ipp_port = atoi(port); | |
357 | } | |
358 | ||
359 | if (cg->server[0] == '/') | |
360 | strlcpy(cg->servername, "localhost", sizeof(cg->servername)); | |
361 | else | |
362 | strlcpy(cg->servername, cg->server, sizeof(cg->servername)); | |
363 | } | |
364 | else | |
365 | { | |
366 | cg->server[0] = '\0'; | |
367 | cg->servername[0] = '\0'; | |
368 | cg->server_version = 20; | |
369 | } | |
370 | ||
371 | if (cg->http) | |
372 | { | |
373 | httpClose(cg->http); | |
374 | cg->http = NULL; | |
375 | } | |
376 | } | |
377 | ||
378 | ||
379 | /* | |
380 | * 'cupsSetServerCertCB()' - Set the server certificate callback. | |
381 | * | |
382 | * Pass @code NULL@ to restore the default callback. | |
383 | * | |
384 | * Note: The current credentials callback is tracked separately for each thread | |
385 | * in a program. Multi-threaded programs that override the callback need to do | |
386 | * so in each thread for the same callback to be used. | |
387 | * | |
388 | * @since CUPS 1.5/OS X 10.7@ | |
389 | */ | |
390 | ||
391 | void | |
392 | cupsSetServerCertCB( | |
393 | cups_server_cert_cb_t cb, /* I - Callback function */ | |
394 | void *user_data) /* I - User data pointer */ | |
395 | { | |
396 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
397 | ||
398 | ||
399 | cg->server_cert_cb = cb; | |
400 | cg->server_cert_data = user_data; | |
401 | } | |
402 | ||
403 | ||
404 | /* | |
405 | * 'cupsSetUser()' - Set the default user name. | |
406 | * | |
407 | * Pass @code NULL@ to restore the default user name. | |
408 | * | |
409 | * Note: The current user name is tracked separately for each thread in a | |
410 | * program. Multi-threaded programs that override the user name need to do so | |
411 | * in each thread for the same user name to be used. | |
412 | */ | |
413 | ||
414 | void | |
415 | cupsSetUser(const char *user) /* I - User name */ | |
416 | { | |
417 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
418 | ||
419 | ||
420 | if (user) | |
421 | strlcpy(cg->user, user, sizeof(cg->user)); | |
422 | else | |
423 | cg->user[0] = '\0'; | |
424 | } | |
425 | ||
426 | ||
427 | /* | |
428 | * 'cupsSetUserAgent()' - Set the default HTTP User-Agent string. | |
429 | * | |
430 | * Setting the string to NULL forces the default value containing the CUPS | |
431 | * version, IPP version, and operating system version and architecture. | |
432 | * | |
433 | * @since CUPS 1.7/OS X 10.9@ | |
434 | */ | |
435 | ||
436 | void | |
437 | cupsSetUserAgent(const char *user_agent)/* I - User-Agent string or @code NULL@ */ | |
438 | { | |
439 | _cups_globals_t *cg = _cupsGlobals(); | |
440 | /* Thread globals */ | |
441 | #ifdef WIN32 | |
442 | SYSTEM_INFO sysinfo; /* System information */ | |
443 | OSVERSIONINFO version; /* OS version info */ | |
444 | #else | |
445 | struct utsname name; /* uname info */ | |
446 | #endif /* WIN32 */ | |
447 | ||
448 | ||
449 | if (user_agent) | |
450 | { | |
451 | strlcpy(cg->user_agent, user_agent, sizeof(cg->user_agent)); | |
452 | return; | |
453 | } | |
454 | ||
455 | #ifdef WIN32 | |
456 | version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); | |
457 | GetVersionEx(&version); | |
458 | GetNativeSystemInfo(&sysinfo); | |
459 | ||
460 | snprintf(cg->user_agent, sizeof(cg->user_agent), | |
461 | CUPS_MINIMAL " (Windows %d.%d; %s) IPP/2.0", | |
462 | version.dwMajorVersion, version.dwMinorVersion, | |
463 | sysinfo.wProcessorArchitecture | |
464 | == PROCESSOR_ARCHITECTURE_AMD64 ? "amd64" : | |
465 | sysinfo.wProcessorArchitecture | |
466 | == PROCESSOR_ARCHITECTURE_ARM ? "arm" : | |
467 | sysinfo.wProcessorArchitecture | |
468 | == PROCESSOR_ARCHITECTURE_IA64 ? "ia64" : | |
469 | sysinfo.wProcessorArchitecture | |
470 | == PROCESSOR_ARCHITECTURE_INTEL ? "intel" : | |
471 | "unknown"); | |
472 | ||
473 | #else | |
474 | uname(&name); | |
475 | ||
476 | snprintf(cg->user_agent, sizeof(cg->user_agent), | |
477 | CUPS_MINIMAL " (%s %s; %s) IPP/2.0", | |
478 | name.sysname, name.release, name.machine); | |
479 | #endif /* WIN32 */ | |
480 | } | |
481 | ||
482 | ||
483 | /* | |
484 | * 'cupsUser()' - Return the current user's name. | |
485 | * | |
486 | * Note: The current user name is tracked separately for each thread in a | |
487 | * program. Multi-threaded programs that override the user name with the | |
488 | * @link cupsSetUser@ function need to do so in each thread for the same user | |
489 | * name to be used. | |
490 | */ | |
491 | ||
492 | const char * /* O - User name */ | |
493 | cupsUser(void) | |
494 | { | |
495 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
496 | ||
497 | ||
498 | if (!cg->user[0]) | |
499 | _cupsSetDefaults(); | |
500 | ||
501 | return (cg->user); | |
502 | } | |
503 | ||
504 | ||
505 | /* | |
506 | * 'cupsUserAgent()' - Return the default HTTP User-Agent string. | |
507 | * | |
508 | * @since CUPS 1.7/OS X 10.9@ | |
509 | */ | |
510 | ||
511 | const char * /* O - User-Agent string */ | |
512 | cupsUserAgent(void) | |
513 | { | |
514 | _cups_globals_t *cg = _cupsGlobals(); /* Thread globals */ | |
515 | ||
516 | ||
517 | if (!cg->user_agent[0]) | |
518 | cupsSetUserAgent(NULL); | |
519 | ||
520 | return (cg->user_agent); | |
521 | } | |
522 | ||
523 | ||
524 | /* | |
525 | * '_cupsGetPassword()' - Get a password from the user. | |
526 | */ | |
527 | ||
528 | const char * /* O - Password or @code NULL@ if none */ | |
529 | _cupsGetPassword(const char *prompt) /* I - Prompt string */ | |
530 | { | |
531 | #ifdef WIN32 | |
532 | HANDLE tty; /* Console handle */ | |
533 | DWORD mode; /* Console mode */ | |
534 | char passch, /* Current key press */ | |
535 | *passptr, /* Pointer into password string */ | |
536 | *passend; /* End of password string */ | |
537 | DWORD passbytes; /* Bytes read */ | |
538 | _cups_globals_t *cg = _cupsGlobals(); | |
539 | /* Thread globals */ | |
540 | ||
541 | ||
542 | /* | |
543 | * Disable input echo and set raw input... | |
544 | */ | |
545 | ||
546 | if ((tty = GetStdHandle(STD_INPUT_HANDLE)) == INVALID_HANDLE_VALUE) | |
547 | return (NULL); | |
548 | ||
549 | if (!GetConsoleMode(tty, &mode)) | |
550 | return (NULL); | |
551 | ||
552 | if (!SetConsoleMode(tty, 0)) | |
553 | return (NULL); | |
554 | ||
555 | /* | |
556 | * Display the prompt... | |
557 | */ | |
558 | ||
559 | printf("%s ", prompt); | |
560 | fflush(stdout); | |
561 | ||
562 | /* | |
563 | * Read the password string from /dev/tty until we get interrupted or get a | |
564 | * carriage return or newline... | |
565 | */ | |
566 | ||
567 | passptr = cg->password; | |
568 | passend = cg->password + sizeof(cg->password) - 1; | |
569 | ||
570 | while (ReadFile(tty, &passch, 1, &passbytes, NULL)) | |
571 | { | |
572 | if (passch == 0x0A || passch == 0x0D) | |
573 | { | |
574 | /* | |
575 | * Enter/return... | |
576 | */ | |
577 | ||
578 | break; | |
579 | } | |
580 | else if (passch == 0x08 || passch == 0x7F) | |
581 | { | |
582 | /* | |
583 | * Backspace/delete (erase character)... | |
584 | */ | |
585 | ||
586 | if (passptr > cg->password) | |
587 | { | |
588 | passptr --; | |
589 | fputs("\010 \010", stdout); | |
590 | } | |
591 | else | |
592 | putchar(0x07); | |
593 | } | |
594 | else if (passch == 0x15) | |
595 | { | |
596 | /* | |
597 | * CTRL+U (erase line) | |
598 | */ | |
599 | ||
600 | if (passptr > cg->password) | |
601 | { | |
602 | while (passptr > cg->password) | |
603 | { | |
604 | passptr --; | |
605 | fputs("\010 \010", stdout); | |
606 | } | |
607 | } | |
608 | else | |
609 | putchar(0x07); | |
610 | } | |
611 | else if (passch == 0x03) | |
612 | { | |
613 | /* | |
614 | * CTRL+C... | |
615 | */ | |
616 | ||
617 | passptr = cg->password; | |
618 | break; | |
619 | } | |
620 | else if ((passch & 255) < 0x20 || passptr >= passend) | |
621 | putchar(0x07); | |
622 | else | |
623 | { | |
624 | *passptr++ = passch; | |
625 | putchar(_CUPS_PASSCHAR); | |
626 | } | |
627 | ||
628 | fflush(stdout); | |
629 | } | |
630 | ||
631 | putchar('\n'); | |
632 | fflush(stdout); | |
633 | ||
634 | /* | |
635 | * Cleanup... | |
636 | */ | |
637 | ||
638 | SetConsoleMode(tty, mode); | |
639 | ||
640 | /* | |
641 | * Return the proper value... | |
642 | */ | |
643 | ||
644 | if (passbytes == 1 && passptr > cg->password) | |
645 | { | |
646 | *passptr = '\0'; | |
647 | return (cg->password); | |
648 | } | |
649 | else | |
650 | { | |
651 | memset(cg->password, 0, sizeof(cg->password)); | |
652 | return (NULL); | |
653 | } | |
654 | ||
655 | #else | |
656 | int tty; /* /dev/tty - never read from stdin */ | |
657 | struct termios original, /* Original input mode */ | |
658 | noecho; /* No echo input mode */ | |
659 | char passch, /* Current key press */ | |
660 | *passptr, /* Pointer into password string */ | |
661 | *passend; /* End of password string */ | |
662 | ssize_t passbytes; /* Bytes read */ | |
663 | _cups_globals_t *cg = _cupsGlobals(); | |
664 | /* Thread globals */ | |
665 | ||
666 | ||
667 | /* | |
668 | * Disable input echo and set raw input... | |
669 | */ | |
670 | ||
671 | if ((tty = open("/dev/tty", O_RDONLY)) < 0) | |
672 | return (NULL); | |
673 | ||
674 | if (tcgetattr(tty, &original)) | |
675 | { | |
676 | close(tty); | |
677 | return (NULL); | |
678 | } | |
679 | ||
680 | noecho = original; | |
681 | noecho.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG); | |
682 | ||
683 | if (tcsetattr(tty, TCSAFLUSH, &noecho)) | |
684 | { | |
685 | close(tty); | |
686 | return (NULL); | |
687 | } | |
688 | ||
689 | /* | |
690 | * Display the prompt... | |
691 | */ | |
692 | ||
693 | printf("%s ", prompt); | |
694 | fflush(stdout); | |
695 | ||
696 | /* | |
697 | * Read the password string from /dev/tty until we get interrupted or get a | |
698 | * carriage return or newline... | |
699 | */ | |
700 | ||
701 | passptr = cg->password; | |
702 | passend = cg->password + sizeof(cg->password) - 1; | |
703 | ||
704 | while ((passbytes = read(tty, &passch, 1)) == 1) | |
705 | { | |
706 | if (passch == noecho.c_cc[VEOL] || passch == noecho.c_cc[VEOL2] || | |
707 | passch == 0x0A || passch == 0x0D) | |
708 | { | |
709 | /* | |
710 | * Enter/return... | |
711 | */ | |
712 | ||
713 | break; | |
714 | } | |
715 | else if (passch == noecho.c_cc[VERASE] || | |
716 | passch == 0x08 || passch == 0x7F) | |
717 | { | |
718 | /* | |
719 | * Backspace/delete (erase character)... | |
720 | */ | |
721 | ||
722 | if (passptr > cg->password) | |
723 | { | |
724 | passptr --; | |
725 | fputs("\010 \010", stdout); | |
726 | } | |
727 | else | |
728 | putchar(0x07); | |
729 | } | |
730 | else if (passch == noecho.c_cc[VKILL]) | |
731 | { | |
732 | /* | |
733 | * CTRL+U (erase line) | |
734 | */ | |
735 | ||
736 | if (passptr > cg->password) | |
737 | { | |
738 | while (passptr > cg->password) | |
739 | { | |
740 | passptr --; | |
741 | fputs("\010 \010", stdout); | |
742 | } | |
743 | } | |
744 | else | |
745 | putchar(0x07); | |
746 | } | |
747 | else if (passch == noecho.c_cc[VINTR] || passch == noecho.c_cc[VQUIT] || | |
748 | passch == noecho.c_cc[VEOF]) | |
749 | { | |
750 | /* | |
751 | * CTRL+C, CTRL+D, or CTRL+Z... | |
752 | */ | |
753 | ||
754 | passptr = cg->password; | |
755 | break; | |
756 | } | |
757 | else if ((passch & 255) < 0x20 || passptr >= passend) | |
758 | putchar(0x07); | |
759 | else | |
760 | { | |
761 | *passptr++ = passch; | |
762 | putchar(_CUPS_PASSCHAR); | |
763 | } | |
764 | ||
765 | fflush(stdout); | |
766 | } | |
767 | ||
768 | putchar('\n'); | |
769 | fflush(stdout); | |
770 | ||
771 | /* | |
772 | * Cleanup... | |
773 | */ | |
774 | ||
775 | tcsetattr(tty, TCSAFLUSH, &original); | |
776 | close(tty); | |
777 | ||
778 | /* | |
779 | * Return the proper value... | |
780 | */ | |
781 | ||
782 | if (passbytes == 1 && passptr > cg->password) | |
783 | { | |
784 | *passptr = '\0'; | |
785 | return (cg->password); | |
786 | } | |
787 | else | |
788 | { | |
789 | memset(cg->password, 0, sizeof(cg->password)); | |
790 | return (NULL); | |
791 | } | |
792 | #endif /* WIN32 */ | |
793 | } | |
794 | ||
795 | ||
796 | #ifdef HAVE_GSSAPI | |
797 | /* | |
798 | * '_cupsGSSServiceName()' - Get the GSS (Kerberos) service name. | |
799 | */ | |
800 | ||
801 | const char * | |
802 | _cupsGSSServiceName(void) | |
803 | { | |
804 | _cups_globals_t *cg = _cupsGlobals(); /* Thread globals */ | |
805 | ||
806 | ||
807 | if (!cg->gss_service_name[0]) | |
808 | _cupsSetDefaults(); | |
809 | ||
810 | return (cg->gss_service_name); | |
811 | } | |
812 | #endif /* HAVE_GSSAPI */ | |
813 | ||
814 | ||
815 | /* | |
816 | * '_cupsSetDefaults()' - Set the default server, port, and encryption. | |
817 | */ | |
818 | ||
819 | void | |
820 | _cupsSetDefaults(void) | |
821 | { | |
822 | cups_file_t *fp; /* File */ | |
823 | const char *home, /* Home directory of user */ | |
824 | *cups_encryption, /* CUPS_ENCRYPTION env var */ | |
825 | *cups_server, /* CUPS_SERVER env var */ | |
826 | *cups_user, /* CUPS_USER/USER env var */ | |
827 | #ifdef HAVE_GSSAPI | |
828 | *cups_gssservicename, /* CUPS_GSSSERVICENAME env var */ | |
829 | #endif /* HAVE_GSSAPI */ | |
830 | *cups_anyroot, /* CUPS_ANYROOT env var */ | |
831 | *cups_expiredroot, /* CUPS_EXPIREDROOT env var */ | |
832 | *cups_expiredcerts; /* CUPS_EXPIREDCERTS env var */ | |
833 | char filename[1024]; /* Filename */ | |
834 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
835 | ||
836 | ||
837 | DEBUG_puts("_cupsSetDefaults()"); | |
838 | ||
839 | /* | |
840 | * First collect environment variables... | |
841 | */ | |
842 | ||
843 | cups_encryption = getenv("CUPS_ENCRYPTION"); | |
844 | cups_server = getenv("CUPS_SERVER"); | |
845 | #ifdef HAVE_GSSAPI | |
846 | cups_gssservicename = getenv("CUPS_GSSSERVICENAME"); | |
847 | #endif /* HAVE_GSSAPI */ | |
848 | cups_anyroot = getenv("CUPS_ANYROOT"); | |
849 | cups_expiredroot = getenv("CUPS_EXPIREDROOT"); | |
850 | cups_expiredcerts = getenv("CUPS_EXPIREDCERTS"); | |
851 | ||
852 | if ((cups_user = getenv("CUPS_USER")) == NULL) | |
853 | cups_user = getenv("USER"); | |
854 | ||
855 | /* | |
856 | * Then, if needed, read the ~/.cups/client.conf or /etc/cups/client.conf | |
857 | * files to get the default values... | |
858 | */ | |
859 | ||
860 | if (cg->encryption == (http_encryption_t)-1 || !cg->server[0] || | |
861 | !cg->user[0] || !cg->ipp_port) | |
862 | { | |
863 | # ifdef HAVE_GETEUID | |
864 | if ((geteuid() == getuid() || !getuid()) && getegid() == getgid() && (home = getenv("HOME")) != NULL) | |
865 | # elif !defined(WIN32) | |
866 | if (getuid() && (home = getenv("HOME")) != NULL) | |
867 | # else | |
868 | if ((home = getenv("HOME")) != NULL) | |
869 | # endif /* HAVE_GETEUID */ | |
870 | { | |
871 | /* | |
872 | * Look for ~/.cups/client.conf... | |
873 | */ | |
874 | ||
875 | snprintf(filename, sizeof(filename), "%s/.cups/client.conf", home); | |
876 | fp = cupsFileOpen(filename, "r"); | |
877 | } | |
878 | else | |
879 | fp = NULL; | |
880 | ||
881 | if (!fp) | |
882 | { | |
883 | /* | |
884 | * Look for CUPS_SERVERROOT/client.conf... | |
885 | */ | |
886 | ||
887 | snprintf(filename, sizeof(filename), "%s/client.conf", | |
888 | cg->cups_serverroot); | |
889 | fp = cupsFileOpen(filename, "r"); | |
890 | } | |
891 | ||
892 | /* | |
893 | * Read the configuration file and apply any environment variables; both | |
894 | * functions handle NULL cups_file_t pointers... | |
895 | */ | |
896 | ||
897 | cups_read_client_conf(fp, cg, cups_encryption, cups_server, cups_user, | |
898 | #ifdef HAVE_GSSAPI | |
899 | cups_gssservicename, | |
900 | #endif /* HAVE_GSSAPI */ | |
901 | cups_anyroot, cups_expiredroot, | |
902 | cups_expiredcerts); | |
903 | cupsFileClose(fp); | |
904 | } | |
905 | } | |
906 | ||
907 | ||
908 | /* | |
909 | * 'cups_read_client_conf()' - Read a client.conf file. | |
910 | */ | |
911 | ||
912 | static void | |
913 | cups_read_client_conf( | |
914 | cups_file_t *fp, /* I - File to read */ | |
915 | _cups_globals_t *cg, /* I - Global data */ | |
916 | const char *cups_encryption, /* I - CUPS_ENCRYPTION env var */ | |
917 | const char *cups_server, /* I - CUPS_SERVER env var */ | |
918 | const char *cups_user, /* I - CUPS_USER env var */ | |
919 | #ifdef HAVE_GSSAPI | |
920 | const char *cups_gssservicename, | |
921 | /* I - CUPS_GSSSERVICENAME env var */ | |
922 | #endif /* HAVE_GSSAPI */ | |
923 | const char *cups_anyroot, /* I - CUPS_ANYROOT env var */ | |
924 | const char *cups_expiredroot, /* I - CUPS_EXPIREDROOT env var */ | |
925 | const char *cups_expiredcerts) /* I - CUPS_EXPIREDCERTS env var */ | |
926 | { | |
927 | int linenum; /* Current line number */ | |
928 | char line[1024], /* Line from file */ | |
929 | *value, /* Pointer into line */ | |
930 | encryption[1024], /* Encryption value */ | |
931 | #ifndef __APPLE__ | |
932 | server_name[1024], /* ServerName value */ | |
933 | #endif /* !__APPLE__ */ | |
934 | user[256], /* User value */ | |
935 | any_root[1024], /* AllowAnyRoot value */ | |
936 | expired_root[1024], /* AllowExpiredRoot value */ | |
937 | expired_certs[1024]; /* AllowExpiredCerts value */ | |
938 | #ifdef HAVE_GSSAPI | |
939 | char gss_service_name[32]; /* GSSServiceName value */ | |
940 | #endif /* HAVE_GSSAPI */ | |
941 | ||
942 | ||
943 | /* | |
944 | * Read from the file... | |
945 | */ | |
946 | ||
947 | linenum = 0; | |
948 | while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum)) | |
949 | { | |
950 | if (!cups_encryption && cg->encryption == (http_encryption_t)-1 && | |
951 | !_cups_strcasecmp(line, "Encryption") && value) | |
952 | { | |
953 | strlcpy(encryption, value, sizeof(encryption)); | |
954 | cups_encryption = encryption; | |
955 | } | |
956 | #ifndef __APPLE__ | |
957 | /* | |
958 | * The Server directive is not supported on OS X due to app sandboxing | |
959 | * restrictions, i.e. not all apps request network access. | |
960 | */ | |
961 | else if (!cups_server && (!cg->server[0] || !cg->ipp_port) && | |
962 | !_cups_strcasecmp(line, "ServerName") && value) | |
963 | { | |
964 | strlcpy(server_name, value, sizeof(server_name)); | |
965 | cups_server = server_name; | |
966 | } | |
967 | #endif /* !__APPLE__ */ | |
968 | else if (!cups_user && !_cups_strcasecmp(line, "User") && value) | |
969 | { | |
970 | strlcpy(user, value, sizeof(user)); | |
971 | cups_user = user; | |
972 | } | |
973 | else if (!cups_anyroot && !_cups_strcasecmp(line, "AllowAnyRoot") && value) | |
974 | { | |
975 | strlcpy(any_root, value, sizeof(any_root)); | |
976 | cups_anyroot = any_root; | |
977 | } | |
978 | else if (!cups_expiredroot && !_cups_strcasecmp(line, "AllowExpiredRoot") && | |
979 | value) | |
980 | { | |
981 | strlcpy(expired_root, value, sizeof(expired_root)); | |
982 | cups_expiredroot = expired_root; | |
983 | } | |
984 | else if (!cups_expiredcerts && !_cups_strcasecmp(line, "AllowExpiredCerts") && | |
985 | value) | |
986 | { | |
987 | strlcpy(expired_certs, value, sizeof(expired_certs)); | |
988 | cups_expiredcerts = expired_certs; | |
989 | } | |
990 | #ifdef HAVE_GSSAPI | |
991 | else if (!cups_gssservicename && !_cups_strcasecmp(line, "GSSServiceName") && | |
992 | value) | |
993 | { | |
994 | strlcpy(gss_service_name, value, sizeof(gss_service_name)); | |
995 | cups_gssservicename = gss_service_name; | |
996 | } | |
997 | #endif /* HAVE_GSSAPI */ | |
998 | } | |
999 | ||
1000 | /* | |
1001 | * Set values... | |
1002 | */ | |
1003 | ||
1004 | if (cg->encryption == (http_encryption_t)-1 && cups_encryption) | |
1005 | { | |
1006 | if (!_cups_strcasecmp(cups_encryption, "never")) | |
1007 | cg->encryption = HTTP_ENCRYPTION_NEVER; | |
1008 | else if (!_cups_strcasecmp(cups_encryption, "always")) | |
1009 | cg->encryption = HTTP_ENCRYPTION_ALWAYS; | |
1010 | else if (!_cups_strcasecmp(cups_encryption, "required")) | |
1011 | cg->encryption = HTTP_ENCRYPTION_REQUIRED; | |
1012 | else | |
1013 | cg->encryption = HTTP_ENCRYPTION_IF_REQUESTED; | |
1014 | } | |
1015 | ||
1016 | if ((!cg->server[0] || !cg->ipp_port) && cups_server) | |
1017 | cupsSetServer(cups_server); | |
1018 | ||
1019 | if (!cg->server[0]) | |
1020 | { | |
1021 | #ifdef CUPS_DEFAULT_DOMAINSOCKET | |
1022 | /* | |
1023 | * If we are compiled with domain socket support, only use the | |
1024 | * domain socket if it exists and has the right permissions... | |
1025 | */ | |
1026 | ||
1027 | struct stat sockinfo; /* Domain socket information */ | |
1028 | ||
1029 | if (!stat(CUPS_DEFAULT_DOMAINSOCKET, &sockinfo) && | |
1030 | (sockinfo.st_mode & S_IRWXO) == S_IRWXO) | |
1031 | cups_server = CUPS_DEFAULT_DOMAINSOCKET; | |
1032 | else | |
1033 | #endif /* CUPS_DEFAULT_DOMAINSOCKET */ | |
1034 | cups_server = "localhost"; | |
1035 | ||
1036 | cupsSetServer(cups_server); | |
1037 | } | |
1038 | ||
1039 | if (!cg->ipp_port) | |
1040 | { | |
1041 | const char *ipp_port; /* IPP_PORT environment variable */ | |
1042 | ||
1043 | if ((ipp_port = getenv("IPP_PORT")) != NULL) | |
1044 | { | |
1045 | if ((cg->ipp_port = atoi(ipp_port)) <= 0) | |
1046 | cg->ipp_port = CUPS_DEFAULT_IPP_PORT; | |
1047 | } | |
1048 | else | |
1049 | cg->ipp_port = CUPS_DEFAULT_IPP_PORT; | |
1050 | } | |
1051 | ||
1052 | if (!cg->user[0]) | |
1053 | { | |
1054 | if (cups_user) | |
1055 | strlcpy(cg->user, cups_user, sizeof(cg->user)); | |
1056 | else | |
1057 | { | |
1058 | #ifdef WIN32 | |
1059 | /* | |
1060 | * Get the current user name from the OS... | |
1061 | */ | |
1062 | ||
1063 | DWORD size; /* Size of string */ | |
1064 | ||
1065 | size = sizeof(cg->user); | |
1066 | if (!GetUserName(cg->user, &size)) | |
1067 | #else | |
1068 | /* | |
1069 | * Get the user name corresponding to the current UID... | |
1070 | */ | |
1071 | ||
1072 | struct passwd *pwd; /* User/password entry */ | |
1073 | ||
1074 | setpwent(); | |
1075 | if ((pwd = getpwuid(getuid())) != NULL) | |
1076 | { | |
1077 | /* | |
1078 | * Found a match! | |
1079 | */ | |
1080 | ||
1081 | strlcpy(cg->user, pwd->pw_name, sizeof(cg->user)); | |
1082 | } | |
1083 | else | |
1084 | #endif /* WIN32 */ | |
1085 | { | |
1086 | /* | |
1087 | * Use the default "unknown" user name... | |
1088 | */ | |
1089 | ||
1090 | strlcpy(cg->user, "unknown", sizeof(cg->user)); | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | #ifdef HAVE_GSSAPI | |
1096 | if (!cups_gssservicename) | |
1097 | cups_gssservicename = CUPS_DEFAULT_GSSSERVICENAME; | |
1098 | ||
1099 | strlcpy(cg->gss_service_name, cups_gssservicename, | |
1100 | sizeof(cg->gss_service_name)); | |
1101 | #endif /* HAVE_GSSAPI */ | |
1102 | ||
1103 | if (cups_anyroot) | |
1104 | cg->any_root = !_cups_strcasecmp(cups_anyroot, "yes") || | |
1105 | !_cups_strcasecmp(cups_anyroot, "on") || | |
1106 | !_cups_strcasecmp(cups_anyroot, "true"); | |
1107 | ||
1108 | if (cups_expiredroot) | |
1109 | cg->expired_root = !_cups_strcasecmp(cups_expiredroot, "yes") || | |
1110 | !_cups_strcasecmp(cups_expiredroot, "on") || | |
1111 | !_cups_strcasecmp(cups_expiredroot, "true"); | |
1112 | ||
1113 | if (cups_expiredcerts) | |
1114 | cg->expired_certs = !_cups_strcasecmp(cups_expiredcerts, "yes") || | |
1115 | !_cups_strcasecmp(cups_expiredcerts, "on") || | |
1116 | !_cups_strcasecmp(cups_expiredcerts, "true"); | |
1117 | } | |
1118 | ||
1119 | ||
1120 | /* | |
1121 | * End of "$Id$". | |
1122 | */ |