D-Bus 1.12.20

dbus-sysdeps.h
1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-sysdeps.h Wrappers around system/libc features (internal to D-Bus implementation)
3 *
4 * Copyright (C) 2002, 2003 Red Hat, Inc.
5 * Copyright (C) 2003 CodeFactory AB
6 *
7 * Licensed under the Academic Free License version 2.1
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 *
23 */
24
25 #ifndef DBUS_SYSDEPS_H
26 #define DBUS_SYSDEPS_H
27
28 #ifndef VERSION
29 #warning Please include config.h before dbus-sysdeps.h
30 #include "config.h"
31 #endif
32
33 #ifdef HAVE_STDINT_H
34 #include <stdint.h>
35 #endif
36
37 #ifdef HAVE_INTTYPES_H
38 #include <inttypes.h>
39 #endif
40
41 #include <dbus/dbus-errors.h>
42 #include <dbus/dbus-file.h>
43 #include <dbus/dbus-string.h>
44
45 /* this is perhaps bogus, but strcmp() etc. are faster if we use the
46 * stuff straight out of string.h, so have this here for now.
47 */
48 #include <string.h>
49 #include <stdarg.h>
50
51 #if !defined(BROKEN_POLL) && (defined(__APPLE__) || defined(__INTERIX))
52 /* Following libcurl's example, we blacklist poll() on Darwin
53 * (macOS, iOS, etc.) and Interix due to a history of implementation
54 * issues.
55 * https://github.com/curl/curl/blob/master/m4/curl-functions.m4
56 *
57 * On unspecified older macOS versions, poll() failed if given a
58 * device node to poll.
59 *
60 * On macOS < 10.9, poll() with nfds=0 failed instead of waiting for
61 * the timeout and then succeeding.
62 *
63 * On macOS >= 10.12, poll() with nfds=0 succeeded immediately
64 * instead of waiting for the timeout, resulting in busy-looping.
65 *
66 * On Interix, poll() apparently only works for files in /proc.
67 *
68 * The "legacy" build flavour in our CI machinery defines BROKEN_POLL
69 * on whatever platform is in use (normally Linux) to force use of the
70 * same select()-based poll() emulation that we use for macOS, Interix,
71 * and any platform that lacks a real poll(), so that we can test it
72 * more regularly.
73 */
74 # define BROKEN_POLL
75 #endif
76
77 /* AIX sys/poll.h does #define events reqevents, and other
78 * wonderousness, so must include sys/poll before declaring
79 * DBusPollFD
80 */
81 #ifdef HAVE_POLL
82 #include <sys/poll.h>
83 #endif
84
85 #ifdef DBUS_WINCE
86 /* Windows CE lacks some system functions (such as errno and clock).
87 We bring them in here. */
88 #include "dbus-sysdeps-wince-glue.h"
89 #endif
90
91 #ifdef DBUS_WIN
92 #include <ws2tcpip.h>
93 #endif
94
95 DBUS_BEGIN_DECLS
96
97 #ifdef DBUS_WIN
98 #define _DBUS_PATH_SEPARATOR ";"
99 #else
100 #define _DBUS_PATH_SEPARATOR ":"
101 #endif
102
103 /* Forward declarations */
104
105
107 typedef struct DBusList DBusList;
108
110 typedef struct DBusCredentials DBusCredentials;
111
113 typedef struct DBusPipe DBusPipe;
114
121 DBUS_PRIVATE_EXPORT
122 void _dbus_abort (void) _DBUS_GNUC_NORETURN;
123
124 dbus_bool_t _dbus_check_setuid (void);
125 DBUS_PRIVATE_EXPORT
126 const char* _dbus_getenv (const char *varname);
127 DBUS_PRIVATE_EXPORT
128 dbus_bool_t _dbus_clearenv (void);
129 char ** _dbus_get_environment (void);
130
132 typedef unsigned long dbus_pid_t;
134 typedef unsigned long dbus_uid_t;
136 typedef unsigned long dbus_gid_t;
137
139 #define DBUS_PID_UNSET ((dbus_pid_t) -1)
140
141 #define DBUS_UID_UNSET ((dbus_uid_t) -1)
142
143 #define DBUS_GID_UNSET ((dbus_gid_t) -1)
144
146 #define DBUS_PID_FORMAT "%lu"
147
148 #define DBUS_UID_FORMAT "%lu"
149
150 #define DBUS_GID_FORMAT "%lu"
151
155 #ifdef DBUS_WIN
156
157 typedef struct { SOCKET sock; } DBusSocket;
158 # define DBUS_SOCKET_FORMAT "Iu"
159 # define DBUS_SOCKET_INIT { INVALID_SOCKET }
160
161 static inline SOCKET
162 _dbus_socket_printable (DBusSocket s) { return s.sock; }
163
164 static inline dbus_bool_t
165 _dbus_socket_is_valid (DBusSocket s) { return s.sock != INVALID_SOCKET; }
166
167 static inline void
168 _dbus_socket_invalidate (DBusSocket *s) { s->sock = INVALID_SOCKET; }
169
170 static inline int
171 _dbus_socket_get_int (DBusSocket s) { return (int)s.sock; }
172
173 #else /* not DBUS_WIN */
174
175 typedef struct { int fd; } DBusSocket;
176 # define DBUS_SOCKET_FORMAT "d"
177 # define DBUS_SOCKET_INIT { -1 }
178
179 static inline int
180 _dbus_socket_printable (DBusSocket s) { return s.fd; }
181
182 static inline dbus_bool_t
183 _dbus_socket_is_valid (DBusSocket s) { return s.fd >= 0; }
184
185 static inline void
186 _dbus_socket_invalidate (DBusSocket *s) { s->fd = -1; }
187
188 static inline int
189 _dbus_socket_get_int (DBusSocket s) { return s.fd; }
190
191 #endif /* not DBUS_WIN */
192
193 static inline DBusSocket
194 _dbus_socket_get_invalid (void)
195 {
196 DBusSocket s = DBUS_SOCKET_INIT;
197
198 return s;
199 }
200
201 dbus_bool_t _dbus_set_socket_nonblocking (DBusSocket fd,
202 DBusError *error);
203
204 DBUS_PRIVATE_EXPORT
205 dbus_bool_t _dbus_close_socket (DBusSocket fd,
206 DBusError *error);
207 DBUS_PRIVATE_EXPORT
208 int _dbus_read_socket (DBusSocket fd,
209 DBusString *buffer,
210 int count);
211 DBUS_PRIVATE_EXPORT
212 int _dbus_write_socket (DBusSocket fd,
213 const DBusString *buffer,
214 int start,
215 int len);
216 int _dbus_write_socket_two (DBusSocket fd,
217 const DBusString *buffer1,
218 int start1,
219 int len1,
220 const DBusString *buffer2,
221 int start2,
222 int len2);
223
224 int _dbus_read_socket_with_unix_fds (DBusSocket fd,
225 DBusString *buffer,
226 int count,
227 int *fds,
228 unsigned int *n_fds);
229 DBUS_PRIVATE_EXPORT
230 int _dbus_write_socket_with_unix_fds (DBusSocket fd,
231 const DBusString *buffer,
232 int start,
233 int len,
234 const int *fds,
235 int n_fds);
236 int _dbus_write_socket_with_unix_fds_two (DBusSocket fd,
237 const DBusString *buffer1,
238 int start1,
239 int len1,
240 const DBusString *buffer2,
241 int start2,
242 int len2,
243 const int *fds,
244 int n_fds);
245
246 DBusSocket _dbus_connect_tcp_socket (const char *host,
247 const char *port,
248 const char *family,
249 DBusError *error);
250 DBusSocket _dbus_connect_tcp_socket_with_nonce (const char *host,
251 const char *port,
252 const char *family,
253 const char *noncefile,
254 DBusError *error);
255 int _dbus_listen_tcp_socket (const char *host,
256 const char *port,
257 const char *family,
258 DBusString *retport,
259 DBusSocket **fds_p,
260 DBusError *error);
261 DBusSocket _dbus_accept (DBusSocket listen_fd);
262
263 dbus_bool_t _dbus_read_credentials_socket (DBusSocket client_fd,
264 DBusCredentials *credentials,
265 DBusError *error);
266 dbus_bool_t _dbus_send_credentials_socket (DBusSocket server_fd,
267 DBusError *error);
268
269 dbus_bool_t _dbus_credentials_add_from_user (DBusCredentials *credentials,
270 const DBusString *username);
271 dbus_bool_t _dbus_credentials_add_from_current_process (DBusCredentials *credentials);
272 DBUS_PRIVATE_EXPORT
273 dbus_bool_t _dbus_append_user_from_current_process (DBusString *str);
274
275 dbus_bool_t _dbus_parse_unix_user_from_config (const DBusString *username,
276 dbus_uid_t *uid_p);
277 dbus_bool_t _dbus_parse_unix_group_from_config (const DBusString *groupname,
278 dbus_gid_t *gid_p);
279 dbus_bool_t _dbus_unix_groups_from_uid (dbus_uid_t uid,
280 dbus_gid_t **group_ids,
281 int *n_group_ids);
282 dbus_bool_t _dbus_unix_user_is_at_console (dbus_uid_t uid,
283 DBusError *error);
284 dbus_bool_t _dbus_unix_user_is_process_owner (dbus_uid_t uid);
285 dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid);
286
287 dbus_bool_t _dbus_append_keyring_directory_for_credentials (DBusString *directory,
288 DBusCredentials *credentials);
289
290 dbus_bool_t _dbus_daemon_is_session_bus_address_published (const char *scope);
291
292 dbus_bool_t _dbus_daemon_publish_session_bus_address (const char* address, const char* shm_name);
293
294 void _dbus_daemon_unpublish_session_bus_address (void);
295
296 dbus_bool_t _dbus_socket_can_pass_unix_fd(DBusSocket fd);
297
301 typedef struct DBusAtomic DBusAtomic;
302
306 struct DBusAtomic
307 {
308 #ifdef DBUS_WIN
309 volatile long value;
310 #else
311 volatile dbus_int32_t value;
312 #endif
313 };
314
315 DBUS_PRIVATE_EXPORT
316 dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic);
317 DBUS_PRIVATE_EXPORT
318 dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic);
319 DBUS_PRIVATE_EXPORT
320 dbus_int32_t _dbus_atomic_get (DBusAtomic *atomic);
321
322 #ifdef DBUS_WIN
323
324 /* On Windows, you can only poll sockets. We emulate Unix poll() using
325 * select(), so it doesn't matter what precise type we put in DBusPollFD;
326 * use DBusSocket so that the compiler can check we are doing it right.
327 */
328 typedef DBusSocket DBusPollable;
329 # define DBUS_POLLABLE_FORMAT "Iu"
330
331 static inline DBusPollable
332 _dbus_socket_get_pollable (DBusSocket s) { return s; }
333
334 static inline SOCKET
335 _dbus_pollable_printable (DBusPollable p) { return p.sock; }
336
337 static inline dbus_bool_t
338 _dbus_pollable_is_valid (DBusPollable p) { return _dbus_socket_is_valid (p); }
339
340 static inline void
341 _dbus_pollable_invalidate (DBusPollable *p) { _dbus_socket_invalidate (p); }
342
343 static inline dbus_bool_t
344 _dbus_pollable_equals (DBusPollable a, DBusPollable b) { return a.sock == b.sock; }
345
346 #else /* !DBUS_WIN */
347
348 /* On Unix, you can poll sockets, pipes, etc., and we must put exactly
349 * "int" in DBusPollFD because we're relying on its layout exactly matching
350 * struct pollfd. (This is silly, and one day we should use a better
351 * abstraction.)
352 */
353 typedef int DBusPollable;
354 # define DBUS_POLLABLE_FORMAT "d"
355
356 static inline DBusPollable
357 _dbus_socket_get_pollable (DBusSocket s) { return s.fd; }
358
359 static inline int
360 _dbus_pollable_printable (DBusPollable p) { return p; }
361
362 static inline dbus_bool_t
363 _dbus_pollable_is_valid (DBusPollable p) { return p >= 0; }
364
365 static inline void
366 _dbus_pollable_invalidate (DBusPollable *p) { *p = -1; }
367
368 static inline dbus_bool_t
369 _dbus_pollable_equals (DBusPollable a, DBusPollable b) { return a == b; }
370
371 #endif /* !DBUS_WIN */
372
373 #if defined(HAVE_POLL) && !defined(BROKEN_POLL)
374
378 typedef struct pollfd DBusPollFD;
379
381 #define _DBUS_POLLIN POLLIN
382
383 #define _DBUS_POLLPRI POLLPRI
384
385 #define _DBUS_POLLOUT POLLOUT
386
387 #define _DBUS_POLLERR POLLERR
388
389 #define _DBUS_POLLHUP POLLHUP
390
391 #define _DBUS_POLLNVAL POLLNVAL
392 #else
393 /* Emulate poll() via select(). Because we aren't really going to call
394 * poll(), any similarly-shaped struct is acceptable, and any power of 2
395 * will do for the events/revents; these values happen to match Linux
396 * and *BSD. */
397 typedef struct
398 {
399 DBusPollable fd;
400 short events;
401 short revents;
402 } DBusPollFD;
403
405 #define _DBUS_POLLIN 0x0001
406
407 #define _DBUS_POLLPRI 0x0002
408
409 #define _DBUS_POLLOUT 0x0004
410
411 #define _DBUS_POLLERR 0x0008
412
413 #define _DBUS_POLLHUP 0x0010
414
415 #define _DBUS_POLLNVAL 0x0020
416 #endif
417
418 DBUS_PRIVATE_EXPORT
419 int _dbus_poll (DBusPollFD *fds,
420 int n_fds,
421 int timeout_milliseconds);
422
423 DBUS_PRIVATE_EXPORT
424 void _dbus_sleep_milliseconds (int milliseconds);
425
426 DBUS_PRIVATE_EXPORT
427 void _dbus_get_monotonic_time (long *tv_sec,
428 long *tv_usec);
429
430 DBUS_PRIVATE_EXPORT
431 void _dbus_get_real_time (long *tv_sec,
432 long *tv_usec);
433
437 DBUS_PRIVATE_EXPORT
438 dbus_bool_t _dbus_create_directory (const DBusString *filename,
439 DBusError *error);
440 DBUS_PRIVATE_EXPORT
441 dbus_bool_t _dbus_ensure_directory (const DBusString *filename,
442 DBusError *error);
443 DBUS_PRIVATE_EXPORT
444 dbus_bool_t _dbus_delete_directory (const DBusString *filename,
445 DBusError *error);
446
447 DBUS_PRIVATE_EXPORT
448 dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir,
449 const DBusString *next_component);
450 dbus_bool_t _dbus_string_get_dirname (const DBusString *filename,
451 DBusString *dirname);
452 DBUS_PRIVATE_EXPORT
453 dbus_bool_t _dbus_path_is_absolute (const DBusString *filename);
454
455 dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs);
456 dbus_bool_t _dbus_get_standard_system_servicedirs (DBusList **dirs);
457 dbus_bool_t _dbus_set_up_transient_session_servicedirs (DBusList **dirs,
458 DBusError *error);
459
460 dbus_bool_t _dbus_get_system_config_file (DBusString *str);
461 dbus_bool_t _dbus_get_session_config_file (DBusString *str);
462
464 typedef struct DBusDirIter DBusDirIter;
465
466 DBusDirIter* _dbus_directory_open (const DBusString *filename,
467 DBusError *error);
468 dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter,
469 DBusString *filename,
470 DBusError *error);
471 void _dbus_directory_close (DBusDirIter *iter);
472
473 dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir,
474 DBusError *error);
475
476 DBUS_PRIVATE_EXPORT
477 const char* _dbus_get_tmpdir (void);
478
482 _DBUS_GNUC_WARN_UNUSED_RESULT
483 dbus_bool_t _dbus_generate_random_bytes_buffer (char *buffer,
484 int n_bytes,
485 DBusError *error);
486 dbus_bool_t _dbus_generate_random_bytes (DBusString *str,
487 int n_bytes,
488 DBusError *error);
489 DBUS_PRIVATE_EXPORT
490 dbus_bool_t _dbus_generate_random_ascii (DBusString *str,
491 int n_bytes,
492 DBusError *error);
493
494 DBUS_PRIVATE_EXPORT
495 const char* _dbus_error_from_errno (int error_number);
496 DBUS_PRIVATE_EXPORT
497 const char* _dbus_error_from_system_errno (void);
498
499 int _dbus_save_socket_errno (void);
500 void _dbus_restore_socket_errno (int saved_errno);
501 void _dbus_set_errno_to_zero (void);
502 dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (int e);
503 dbus_bool_t _dbus_get_is_errno_enomem (int e);
504 dbus_bool_t _dbus_get_is_errno_eintr (int e);
505 dbus_bool_t _dbus_get_is_errno_epipe (int e);
506 dbus_bool_t _dbus_get_is_errno_etoomanyrefs (int e);
507 DBUS_PRIVATE_EXPORT
508 const char* _dbus_strerror_from_errno (void);
509
510 void _dbus_disable_sigpipe (void);
511
512 DBUS_PRIVATE_EXPORT
513 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
514
515 DBUS_PRIVATE_EXPORT
516 int _dbus_printf_string_upper_bound (const char *format,
517 va_list args) _DBUS_GNUC_PRINTF (1, 0);
518
519 #ifdef DBUS_ENABLE_VERBOSE_MODE
520 DBUS_PRIVATE_EXPORT
521 void _dbus_print_thread (void);
522 #endif
523
527 typedef struct
528 {
529 unsigned long mode;
530 unsigned long nlink;
531 dbus_uid_t uid;
532 dbus_gid_t gid;
533 unsigned long size;
534 unsigned long atime;
535 unsigned long mtime;
536 unsigned long ctime;
537 } DBusStat;
538
539 dbus_bool_t _dbus_stat (const DBusString *filename,
540 DBusStat *statbuf,
541 DBusError *error);
542 DBUS_PRIVATE_EXPORT
543 dbus_bool_t _dbus_socketpair (DBusSocket *fd1,
544 DBusSocket *fd2,
545 dbus_bool_t blocking,
546 DBusError *error);
547
548 DBUS_PRIVATE_EXPORT
549 void _dbus_print_backtrace (void);
550
551 dbus_bool_t _dbus_become_daemon (const DBusString *pidfile,
552 DBusPipe *print_pid_pipe,
553 DBusError *error,
554 dbus_bool_t keep_umask);
555
556 dbus_bool_t _dbus_verify_daemon_user (const char *user);
557 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
558 DBusError *error);
559
560 dbus_bool_t _dbus_write_pid_to_file_and_pipe (const DBusString *pidfile,
561 DBusPipe *print_pid_pipe,
562 dbus_pid_t pid_to_write,
563 DBusError *error);
564
565 dbus_bool_t _dbus_command_for_pid (unsigned long pid,
566 DBusString *str,
567 int max_len,
568 DBusError *error);
569
570 dbus_bool_t _dbus_user_at_console (const char *username,
571 DBusError *error);
572
573 typedef enum {
574 DBUS_LOG_FLAGS_STDERR = (1 << 0),
575 DBUS_LOG_FLAGS_SYSTEM_LOG = (1 << 1)
576 } DBusLogFlags;
577
578 DBUS_PRIVATE_EXPORT
579 void _dbus_init_system_log (const char *tag,
580 DBusLogFlags flags);
581
582 typedef enum {
583 DBUS_SYSTEM_LOG_INFO,
584 DBUS_SYSTEM_LOG_WARNING,
585 DBUS_SYSTEM_LOG_SECURITY,
586 DBUS_SYSTEM_LOG_ERROR
587 } DBusSystemLogSeverity;
588
589 DBUS_PRIVATE_EXPORT
590 void _dbus_log (DBusSystemLogSeverity severity,
591 const char *msg,
592 ...) _DBUS_GNUC_PRINTF (2, 3);
593 DBUS_PRIVATE_EXPORT
594 void _dbus_logv (DBusSystemLogSeverity severity,
595 const char *msg,
596 va_list args) _DBUS_GNUC_PRINTF (2, 0);
597
598 /* Define DBUS_VA_COPY() to do the right thing for copying va_list variables.
599 * config.h may have already defined DBUS_VA_COPY as va_copy or __va_copy.
600 */
601 #if !defined (DBUS_VA_COPY)
602 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
603 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
604 # elif defined (DBUS_VA_COPY_AS_ARRAY)
605 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
606 # else /* va_list is a pointer */
607 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
608 # endif /* va_list is a pointer */
609 #endif /* !DBUS_VA_COPY */
610
611
616 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
617 (((const char*)&(p))[(i)])
618
623 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
624 (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
625 _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
626 _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
627 _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
628 _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
629 _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
630 _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
631 _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
632
633 dbus_bool_t _dbus_get_autolaunch_address (const char *scope,
634 DBusString *address,
635 DBusError *error);
636
637 dbus_bool_t _dbus_lookup_session_address (dbus_bool_t *supported,
638 DBusString *address,
639 DBusError *error);
640
644 typedef union DBusGUID DBusGUID;
645
646 DBUS_PRIVATE_EXPORT
647 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
648 dbus_bool_t create_if_not_found,
649 DBusError *error);
650
656 dbus_bool_t _dbus_threads_init_platform_specific (void);
657
661 void _dbus_threads_lock_platform_specific (void);
662
666 void _dbus_threads_unlock_platform_specific (void);
667
668 DBUS_PRIVATE_EXPORT
669 dbus_bool_t _dbus_split_paths_and_append (DBusString *dirs,
670 const char *suffix,
671 DBusList **dir_list);
672
673 unsigned long _dbus_pid_for_log (void);
674
675 /* FIXME move back to dbus-sysdeps-unix.h probably -
676 * the PID file handling just needs a little more abstraction
677 * in the bus daemon first.
678 */
679 DBUS_PRIVATE_EXPORT
680 dbus_pid_t _dbus_getpid (void);
681
682 DBUS_PRIVATE_EXPORT
683 dbus_uid_t _dbus_getuid (void);
684
685 DBUS_PRIVATE_EXPORT
686 void _dbus_flush_caches (void);
687
688 dbus_bool_t _dbus_replace_install_prefix (DBusString *path);
689
690 /* Do not set this too high: it is a denial-of-service risk.
691 * See <https://bugs.freedesktop.org/show_bug.cgi?id=82820>
692 *
693 * (This needs to be in the non-Unix-specific header so that
694 * the config-parser can use it.)
695 */
696 #define DBUS_DEFAULT_MESSAGE_UNIX_FDS 16
697
698 typedef struct DBusRLimit DBusRLimit;
699
700 DBusRLimit *_dbus_rlimit_save_fd_limit (DBusError *error);
701 dbus_bool_t _dbus_rlimit_raise_fd_limit (DBusError *error);
702 dbus_bool_t _dbus_rlimit_restore_fd_limit (DBusRLimit *saved,
703 DBusError *error);
704 void _dbus_rlimit_free (DBusRLimit *lim);
705
706 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
707 _DBUS_GNUC_WARN_UNUSED_RESULT
708 dbus_bool_t _dbus_test_append_different_uid (DBusString *uid);
709
710 #ifdef DBUS_UNIX
711 _DBUS_GNUC_WARN_UNUSED_RESULT
712 dbus_bool_t _dbus_test_append_different_username (DBusString *username);
713 #endif
714 #endif /* DBUS_ENABLE_EMBEDDED_TESTS */
715
718 DBUS_END_DECLS
719
720
721 #ifdef DBUS_WIN
722 #include "dbus-sysdeps-win.h"
723 #endif
724
725 #endif /* DBUS_SYSDEPS_H */
_dbus_listen_tcp_socket
int _dbus_listen_tcp_socket(const char *host, const char *port, const char *family, DBusString *retport, DBusSocket **fds_p, DBusError *error)
Creates a socket and binds it to the given path, then listens on the socket.
Definition: dbus-sysdeps-unix.c:1541
_dbus_atomic_dec
DBUS_PRIVATE_EXPORT dbus_int32_t _dbus_atomic_dec(DBusAtomic *atomic)
Atomically decrement an integer.
Definition: dbus-sysdeps-unix.c:2866
_dbus_create_directory
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_create_directory(const DBusString *filename, DBusError *error)
directory interface
Definition: dbus-sysdeps-unix.c:3078
_dbus_verify_daemon_user
dbus_bool_t _dbus_verify_daemon_user(const char *user)
Verify that after the fork we can successfully change to this user.
Definition: dbus-sysdeps-util-unix.c:304
_dbus_getuid
DBUS_PRIVATE_EXPORT dbus_uid_t _dbus_getuid(void)
Gets our UID.
Definition: dbus-sysdeps-unix.c:2761
_dbus_get_session_config_file
dbus_bool_t _dbus_get_session_config_file(DBusString *str)
Get the absolute path of the session.conf file.
Definition: dbus-sysdeps-util-unix.c:1521
_dbus_concat_dir_and_file
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_concat_dir_and_file(DBusString *dir, const DBusString *next_component)
Appends the given filename to the given directory.
Definition: dbus-sysdeps-unix.c:3109
_dbus_threads_lock_platform_specific
void _dbus_threads_lock_platform_specific(void)
Lock a static mutex used to protect _dbus_threads_init_platform_specific().
Definition: dbus-sysdeps-pthread.c:294
_dbus_read_socket_with_unix_fds
int _dbus_read_socket_with_unix_fds(DBusSocket fd, DBusString *buffer, int count, int *fds, unsigned int *n_fds)
Like _dbus_read_socket() but also tries to read unix fds from the socket.
Definition: dbus-sysdeps-unix.c:358
DBusAtomic::value
volatile dbus_int32_t value
Value of the atomic integer.
Definition: dbus-sysdeps.h:311
_dbus_set_up_transient_session_servicedirs
dbus_bool_t _dbus_set_up_transient_session_servicedirs(DBusList **dirs, DBusError *error)
Returns the standard directories for a session bus to look for transient service activation files.
Definition: dbus-sysdeps-util-unix.c:1284
_dbus_get_system_config_file
dbus_bool_t _dbus_get_system_config_file(DBusString *str)
Get the absolute path of the system.conf file (there is no system bus on Windows so this can just ret...
Definition: dbus-sysdeps-util-unix.c:1507
DBusPollFD::revents
short revents
Events that occurred.
Definition: dbus-sysdeps.h:401
_dbus_string_get_dirname
dbus_bool_t _dbus_string_get_dirname(const DBusString *filename, DBusString *dirname)
Get the directory name from a complete filename.
Definition: dbus-sysdeps-util-unix.c:1050
_dbus_windows_user_is_process_owner
dbus_bool_t _dbus_windows_user_is_process_owner(const char *windows_sid)
Checks to see if the Windows user SID matches the owner of the process.
Definition: dbus-sysdeps-util-unix.c:1031
_dbus_accept
DBusSocket _dbus_accept(DBusSocket listen_fd)
Accepts a connection on a listening socket.
Definition: dbus-sysdeps-unix.c:2310
_dbus_error_from_system_errno
DBUS_PRIVATE_EXPORT const char * _dbus_error_from_system_errno(void)
Converts the current system errno value into a DBusError name.
Definition: dbus-sysdeps.c:684
_dbus_unix_user_is_at_console
dbus_bool_t _dbus_unix_user_is_at_console(dbus_uid_t uid, DBusError *error)
Checks to see if the UNIX user ID is at the console.
Definition: dbus-sysdeps-util-unix.c:1003
_dbus_credentials_add_from_current_process
dbus_bool_t _dbus_credentials_add_from_current_process(DBusCredentials *credentials)
Adds the credentials of the current process to the passed-in credentials object.
Definition: dbus-sysdeps-unix.c:2711
DBusStat::uid
dbus_uid_t uid
User owning file.
Definition: dbus-sysdeps.h:531
_dbus_get_standard_system_servicedirs
dbus_bool_t _dbus_get_standard_system_servicedirs(DBusList **dirs)
Returns the standard directories for a system bus to look for service activation files.
Definition: dbus-sysdeps-util-unix.c:1473
_dbus_generate_random_bytes_buffer
_DBUS_GNUC_WARN_UNUSED_RESULT dbus_bool_t _dbus_generate_random_bytes_buffer(char *buffer, int n_bytes, DBusError *error)
Random numbers.
Definition: dbus-sysdeps.c:518
_dbus_get_autolaunch_address
dbus_bool_t _dbus_get_autolaunch_address(const char *scope, DBusString *address, DBusError *error)
Returns the address of a new session bus.
Definition: dbus-sysdeps-unix.c:3873
_dbus_become_daemon
dbus_bool_t _dbus_become_daemon(const DBusString *pidfile, DBusPipe *print_pid_pipe, DBusError *error, dbus_bool_t keep_umask)
Does the chdir, fork, setsid, etc.
Definition: dbus-sysdeps-util-unix.c:82
_dbus_replace_install_prefix
dbus_bool_t _dbus_replace_install_prefix(DBusString *path)
Replace the DBUS_PREFIX in the given path, in-place, by the current D-Bus installation directory.
Definition: dbus-sysdeps-util-unix.c:1202
_dbus_unix_groups_from_uid
dbus_bool_t _dbus_unix_groups_from_uid(dbus_uid_t uid, dbus_gid_t **group_ids, int *n_group_ids)
Gets all groups corresponding to the given UNIX user ID.
Definition: dbus-sysdeps-util-unix.c:986
_dbus_set_socket_nonblocking
dbus_bool_t _dbus_set_socket_nonblocking(DBusSocket fd, DBusError *error)
Sets a file descriptor to be nonblocking.
Definition: dbus-sysdeps-unix.c:3373
_dbus_user_at_console
dbus_bool_t _dbus_user_at_console(const char *username, DBusError *error)
Checks if user is at the console.
Definition: dbus-sysdeps-util-unix.c:560
DBusStat
Portable struct with stat() results.
Definition: dbus-sysdeps.h:528
_dbus_disable_sigpipe
void _dbus_disable_sigpipe(void)
signal (SIGPIPE, SIG_IGN);
Definition: dbus-sysdeps-unix.c:3268
_dbus_write_pid_to_file_and_pipe
dbus_bool_t _dbus_write_pid_to_file_and_pipe(const DBusString *pidfile, DBusPipe *print_pid_pipe, dbus_pid_t pid_to_write, DBusError *error)
Writes the given pid_to_write to a pidfile (if non-NULL) and/or to a pipe (if non-NULL).
Definition: dbus-sysdeps-util-unix.c:230
_dbus_stat
dbus_bool_t _dbus_stat(const DBusString *filename, DBusStat *statbuf, DBusError *error)
stat() wrapper.
Definition: dbus-sysdeps-util-unix.c:624
_dbus_flush_caches
DBUS_PRIVATE_EXPORT void _dbus_flush_caches(void)
Called when the bus daemon is signaled to reload its configuration; any caches should be nuked.
Definition: dbus-sysdeps-unix.c:4285
_dbus_logv
DBUS_PRIVATE_EXPORT void _dbus_logv(DBusSystemLogSeverity severity, const char *msg, va_list args)
Log a message to the system log file (e.g.
Definition: dbus-sysdeps-unix.c:4716
DBusPollFD::events
short events
Events to poll for.
Definition: dbus-sysdeps.h:400
_dbus_directory_close
void _dbus_directory_close(DBusDirIter *iter)
Closes a directory iteration.
Definition: dbus-sysdeps-util-unix.c:768
_dbus_lookup_session_address
dbus_bool_t _dbus_lookup_session_address(dbus_bool_t *supported, DBusString *address, DBusError *error)
Determines the address of the session bus by querying a platform-specific method.
Definition: dbus-sysdeps-unix.c:4253
_dbus_strerror_from_errno
DBUS_PRIVATE_EXPORT const char * _dbus_strerror_from_errno(void)
Get error message from errno.
Definition: dbus-sysdeps.c:751
_dbus_append_keyring_directory_for_credentials
dbus_bool_t _dbus_append_keyring_directory_for_credentials(DBusString *directory, DBusCredentials *credentials)
Appends the directory in which a keyring for the given credentials should be stored.
Definition: dbus-sysdeps-unix.c:4304
_dbus_get_monotonic_time
DBUS_PRIVATE_EXPORT void _dbus_get_monotonic_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
Definition: dbus-sysdeps-unix.c:2993
DBusPipe
Definition: dbus-pipe.h:41
_dbus_get_is_errno_eintr
dbus_bool_t _dbus_get_is_errno_eintr(int e)
See if errno is EINTR.
Definition: dbus-sysdeps.c:717
DBusStat::ctime
unsigned long ctime
Creation time.
Definition: dbus-sysdeps.h:536
DBUS_END_DECLS
#define DBUS_END_DECLS
DBusGUID
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
Definition: dbus-internals.h:395
_dbus_parse_unix_user_from_config
dbus_bool_t _dbus_parse_unix_user_from_config(const DBusString *username, dbus_uid_t *uid_p)
Parse a UNIX user from the bus config file.
Definition: dbus-sysdeps-util-unix.c:953
_dbus_generate_random_bytes
dbus_bool_t _dbus_generate_random_bytes(DBusString *str, int n_bytes, DBusError *error)
Generates the given number of securely random bytes, using the best mechanism we can come up with.
Definition: dbus-sysdeps-unix.c:3184
_dbus_get_environment
char ** _dbus_get_environment(void)
Gets a NULL-terminated list of key=value pairs from the environment.
Definition: dbus-sysdeps-util.c:51
_dbus_connect_tcp_socket
DBusSocket _dbus_connect_tcp_socket(const char *host, const char *port, const char *family, DBusError *error)
Creates a socket and connects to a socket at the given host and port.
Definition: dbus-sysdeps-unix.c:1416
dbus_gid_t
unsigned long dbus_gid_t
A group ID.
Definition: dbus-sysdeps.h:136
_dbus_atomic_get
DBUS_PRIVATE_EXPORT dbus_int32_t _dbus_atomic_get(DBusAtomic *atomic)
Atomically get the value of an integer.
Definition: dbus-sysdeps-unix.c:2890
_dbus_log
DBUS_PRIVATE_EXPORT void _dbus_log(DBusSystemLogSeverity severity, const char *msg,...)
Log a message to the system log file (e.g.
Definition: dbus-sysdeps.c:763
dbus_int32_t
int dbus_int32_t
Definition: dbus-arch-deps.h:42
_dbus_change_to_daemon_user
dbus_bool_t _dbus_change_to_daemon_user(const char *user, DBusError *error)
Changes the user and group the bus is running as.
Definition: dbus-sysdeps-util-unix.c:324
_dbus_get_is_errno_epipe
dbus_bool_t _dbus_get_is_errno_epipe(int e)
See if errno is EPIPE.
Definition: dbus-sysdeps.c:727
_dbus_init_system_log
DBUS_PRIVATE_EXPORT void _dbus_init_system_log(const char *tag, DBusLogFlags flags)
Initialize the system log.
Definition: dbus-sysdeps-unix.c:4691
_dbus_write_socket
DBUS_PRIVATE_EXPORT int _dbus_write_socket(DBusSocket fd, const DBusString *buffer, int start, int len)
Like _dbus_write(), but only supports sockets and is thus available on Windows.
Definition: dbus-sysdeps-unix.c:320
DBusStat::atime
unsigned long atime
Access time.
Definition: dbus-sysdeps.h:534
_dbus_directory_open
DBusDirIter * _dbus_directory_open(const DBusString *filename, DBusError *error)
Open a directory to iterate over.
Definition: dbus-sysdeps-util-unix.c:672
DBUS_BEGIN_DECLS
#define DBUS_BEGIN_DECLS
_dbus_socket_can_pass_unix_fd
dbus_bool_t _dbus_socket_can_pass_unix_fd(DBusSocket fd)
Checks whether file descriptors may be passed via the socket.
Definition: dbus-sysdeps-unix.c:4441
_dbus_credentials_add_from_user
dbus_bool_t _dbus_credentials_add_from_user(DBusCredentials *credentials, const DBusString *username)
Adds the credentials corresponding to the given username.
Definition: dbus-sysdeps-win.c:2067
_dbus_sleep_milliseconds
DBUS_PRIVATE_EXPORT void _dbus_sleep_milliseconds(int milliseconds)
Sleeps the given number of milliseconds.
Definition: dbus-sysdeps-unix.c:3154
_dbus_generate_random_ascii
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_generate_random_ascii(DBusString *str, int n_bytes, DBusError *error)
Generates the given number of random bytes, where the bytes are chosen from the alphanumeric ASCII su...
Definition: dbus-sysdeps.c:552
_dbus_exit
DBUS_PRIVATE_EXPORT void _dbus_exit(int code) _DBUS_GNUC_NORETURN
Exit the process, returning the given value.
Definition: dbus-sysdeps-unix.c:3239
_dbus_set_errno_to_zero
void _dbus_set_errno_to_zero(void)
Assign 0 to the global errno variable.
Definition: dbus-sysdeps.c:693
DBusString
Definition: dbus-string.h:43
DBusStat::mode
unsigned long mode
File mode.
Definition: dbus-sysdeps.h:529
_dbus_check_setuid
dbus_bool_t _dbus_check_setuid(void)
NOTE: If you modify this function, please also consider making the corresponding change in GLib.
Definition: dbus-sysdeps-unix.c:4540
_dbus_directory_get_next_file
dbus_bool_t _dbus_directory_get_next_file(DBusDirIter *iter, DBusString *filename, DBusError *error)
Get next file in the directory.
Definition: dbus-sysdeps-util-unix.c:720
DBusPollFD::fd
DBusPollable fd
File descriptor.
Definition: dbus-sysdeps.h:399
DBusSocket
Socket interface.
Definition: dbus-sysdeps.h:175
_dbus_error_from_errno
DBUS_PRIVATE_EXPORT const char * _dbus_error_from_errno(int error_number)
Converts a UNIX errno, or Windows errno or WinSock error value into a DBusError name.
Definition: dbus-sysdeps.c:592
_dbus_printf_string_upper_bound
DBUS_PRIVATE_EXPORT int _dbus_printf_string_upper_bound(const char *format, va_list args)
Measure the length of the given format string and arguments, not including the terminating nul.
Definition: dbus-sysdeps-unix.c:3535
_dbus_clearenv
dbus_bool_t _dbus_clearenv(void)
Wrapper for clearenv().
Definition: dbus-sysdeps.c:203
DBusCredentials
Definition: dbus-credentials.c:48
_dbus_get_is_errno_enomem
dbus_bool_t _dbus_get_is_errno_enomem(int e)
See if errno is ENOMEM.
Definition: dbus-sysdeps.c:707
dbus_pid_t
unsigned long dbus_pid_t
A process ID.
Definition: dbus-sysdeps.h:132
_dbus_get_is_errno_etoomanyrefs
dbus_bool_t _dbus_get_is_errno_etoomanyrefs(int e)
See if errno is ETOOMANYREFS.
Definition: dbus-sysdeps.c:737
_dbus_split_paths_and_append
dbus_bool_t _dbus_split_paths_and_append(DBusString *dirs, const char *suffix, DBusList **dir_list)
Split paths into a list of char strings.
Definition: dbus-sysdeps.c:228
dbus_uid_t
unsigned long dbus_uid_t
A user ID.
Definition: dbus-sysdeps.h:134
DBusPollFD
Definition: dbus-sysdeps.h:398
DBusStat::nlink
unsigned long nlink
Number of hard links.
Definition: dbus-sysdeps.h:530
_dbus_threads_init_platform_specific
dbus_bool_t _dbus_threads_init_platform_specific(void)
Initialize threads as in dbus_threads_init_default(), appropriately for the platform.
Definition: dbus-sysdeps-pthread.c:279
_dbus_check_dir_is_private_to_user
dbus_bool_t _dbus_check_dir_is_private_to_user(DBusString *dir, DBusError *error)
Checks to make sure the given directory is private to the user.
Definition: dbus-sysdeps-unix.c:2365
_dbus_getenv
const char * _dbus_getenv(const char *varname)
Wrapper for getenv().
Definition: dbus-sysdeps.c:187
_dbus_send_credentials_socket
dbus_bool_t _dbus_send_credentials_socket(DBusSocket server_fd, DBusError *error)
Sends a single nul byte with our UNIX credentials as ancillary data.
Definition: dbus-sysdeps-unix.c:2289
_dbus_abort
void _dbus_abort(void)
Aborts the program with SIGABRT (dumping core).
Definition: dbus-sysdeps.c:79
_dbus_poll
DBUS_PRIVATE_EXPORT int _dbus_poll(DBusPollFD *fds, int n_fds, int timeout_milliseconds)
Wrapper for poll().
Definition: dbus-sysdeps-unix.c:2915
_dbus_path_is_absolute
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_path_is_absolute(const DBusString *filename)
Checks whether the filename is an absolute path.
Definition: dbus-sysdeps-util-unix.c:607
DBusStat::mtime
unsigned long mtime
Modify time.
Definition: dbus-sysdeps.h:535
_dbus_threads_unlock_platform_specific
void _dbus_threads_unlock_platform_specific(void)
Undo _dbus_threads_lock_platform_specific().
Definition: dbus-sysdeps-pthread.c:300
_dbus_read_socket
DBUS_PRIVATE_EXPORT int _dbus_read_socket(DBusSocket fd, DBusString *buffer, int count)
Like _dbus_read(), but only works on sockets so is available on Windows.
Definition: dbus-sysdeps-unix.c:302
DBusStat::gid
dbus_gid_t gid
Group owning file.
Definition: dbus-sysdeps.h:532
_dbus_command_for_pid
dbus_bool_t _dbus_command_for_pid(unsigned long pid, DBusString *str, int max_len, DBusError *error)
Get a printable string describing the command used to execute the process with pid.
Definition: dbus-sysdeps-util-unix.c:1126
DBusAtomic
An atomic integer safe to increment or decrement from multiple threads.
Definition: dbus-sysdeps.h:307
_dbus_close_socket
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_close_socket(DBusSocket fd, DBusError *error)
Closes a socket.
Definition: dbus-sysdeps-unix.c:286
_dbus_get_real_time
DBUS_PRIVATE_EXPORT void _dbus_get_real_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
Definition: dbus-sysdeps-unix.c:3024
_dbus_get_standard_session_servicedirs
dbus_bool_t _dbus_get_standard_session_servicedirs(DBusList **dirs)
Returns the standard directories for a session bus to look for service activation files.
Definition: dbus-sysdeps-util-unix.c:1381
_dbus_socketpair
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_socketpair(DBusSocket *fd1, DBusSocket *fd2, dbus_bool_t blocking, DBusError *error)
Creates pair of connect sockets (as in socketpair()).
Definition: dbus-sysdeps-unix.c:3460
_dbus_getpid
DBUS_PRIVATE_EXPORT dbus_pid_t _dbus_getpid(void)
Gets our process ID.
Definition: dbus-sysdeps-unix.c:2752
DBusError
Object representing an exception.
Definition: dbus-errors.h:49
_dbus_print_backtrace
DBUS_PRIVATE_EXPORT void _dbus_print_backtrace(void)
On GNU libc systems, print a crude backtrace to stderr.
Definition: dbus-sysdeps-unix.c:3418
DBusList
Definition: dbus-list.h:35
_dbus_append_user_from_current_process
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_append_user_from_current_process(DBusString *str)
Append to the string the identity we would like to have when we authenticate, on UNIX this is the cur...
Definition: dbus-sysdeps-unix.c:2741
_dbus_ensure_directory
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_ensure_directory(const DBusString *filename, DBusError *error)
Creates a directory; succeeds if the directory is created or already existed.
Definition: dbus-sysdeps-unix.c:3046
_dbus_parse_unix_group_from_config
dbus_bool_t _dbus_parse_unix_group_from_config(const DBusString *groupname, dbus_gid_t *gid_p)
Parse a UNIX group from the bus config file.
Definition: dbus-sysdeps-util-unix.c:969
_dbus_atomic_inc
DBUS_PRIVATE_EXPORT dbus_int32_t _dbus_atomic_inc(DBusAtomic *atomic)
Atomically increments an integer.
Definition: dbus-sysdeps-unix.c:2843
_dbus_unix_user_is_process_owner
dbus_bool_t _dbus_unix_user_is_process_owner(dbus_uid_t uid)
Checks to see if the UNIX user ID matches the UID of the process.
Definition: dbus-sysdeps-util-unix.c:1018
_dbus_read_local_machine_uuid
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_read_local_machine_uuid(DBusGUID *machine_id, dbus_bool_t create_if_not_found, DBusError *error)
Reads the uuid of the machine we're running on from the dbus configuration.
Definition: dbus-sysdeps-unix.c:3992
DBusDirIter
Internals of directory iterator.
Definition: dbus-sysdeps-util-unix.c:659
_dbus_delete_directory
DBUS_PRIVATE_EXPORT dbus_bool_t _dbus_delete_directory(const DBusString *filename, DBusError *error)
Removes a directory; Directory must be empty.
Definition: dbus-sysdeps-unix.c:4413
_dbus_get_is_errno_eagain_or_ewouldblock
dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock(int e)
See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently for Winsock so is abstracted)
Definition: dbus-sysdeps-unix.c:4392
_dbus_write_socket_two
int _dbus_write_socket_two(DBusSocket fd, const DBusString *buffer1, int start1, int len1, const DBusString *buffer2, int start2, int len2)
Like _dbus_write_two() but only works on sockets and is thus available on Windows.
Definition: dbus-sysdeps-unix.c:658
_dbus_pid_for_log
unsigned long _dbus_pid_for_log(void)
The only reason this is separate from _dbus_getpid() is to allow it on Windows for logging but not fo...
Definition: dbus-sysdeps-unix.c:2782
_dbus_get_tmpdir
DBUS_PRIVATE_EXPORT const char * _dbus_get_tmpdir(void)
Gets the temporary files directory by inspecting the environment variables TMPDIR,...
Definition: dbus-sysdeps-unix.c:3605
DBusStat::size
unsigned long size
Size of file.
Definition: dbus-sysdeps.h:533
_dbus_read_credentials_socket
dbus_bool_t _dbus_read_credentials_socket(DBusSocket client_fd, DBusCredentials *credentials, DBusError *error)
Reads a single byte which must be nul (an error occurs otherwise), and reads unix credentials if avai...
Definition: dbus-sysdeps-unix.c:1975
dbus_bool_t
dbus_uint32_t dbus_bool_t
Definition: dbus-types.h:35