D-Bus  1.6.12
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 #include "config.h"
29 
30 #ifdef HAVE_STDINT_H
31 #include <stdint.h>
32 #endif
33 
34 #ifdef HAVE_INTTYPES_H
35 #include <inttypes.h>
36 #endif
37 
38 #include <dbus/dbus-errors.h>
39 #include <dbus/dbus-file.h>
40 #include <dbus/dbus-string.h>
41 
42 /* this is perhaps bogus, but strcmp() etc. are faster if we use the
43  * stuff straight out of string.h, so have this here for now.
44  */
45 #include <string.h>
46 #include <stdarg.h>
47 
48 /* AIX sys/poll.h does #define events reqevents, and other
49  * wonderousness, so must include sys/poll before declaring
50  * DBusPollFD
51  */
52 #ifdef HAVE_POLL
53 #include <sys/poll.h>
54 #endif
55 
56 #ifdef DBUS_WINCE
57 /* Windows CE lacks some system functions (such as errno and clock).
58  We bring them in here. */
59 #include "dbus-sysdeps-wince-glue.h"
60 #endif
61 
63 
64 #ifdef DBUS_WIN
65 #define _DBUS_PATH_SEPARATOR ";"
66 #else
67 #define _DBUS_PATH_SEPARATOR ":"
68 #endif
69 
70 /* Forward declarations */
71 
72 
74 typedef struct DBusList DBusList;
75 
77 typedef struct DBusCredentials DBusCredentials;
78 
80 typedef struct DBusPipe DBusPipe;
81 
88 void _dbus_abort (void) _DBUS_GNUC_NORETURN;
89 
91 const char* _dbus_getenv (const char *varname);
92 dbus_bool_t _dbus_setenv (const char *varname,
93  const char *value);
95 char ** _dbus_get_environment (void);
96 
98 typedef unsigned long dbus_pid_t;
100 typedef unsigned long dbus_uid_t;
102 typedef unsigned long dbus_gid_t;
103 
105 #define DBUS_PID_UNSET ((dbus_pid_t) -1)
106 
107 #define DBUS_UID_UNSET ((dbus_uid_t) -1)
108 
109 #define DBUS_GID_UNSET ((dbus_gid_t) -1)
110 
112 #define DBUS_PID_FORMAT "%lu"
113 
114 #define DBUS_UID_FORMAT "%lu"
115 
116 #define DBUS_GID_FORMAT "%lu"
117 
118 
130  DBusError *error);
131 int _dbus_read_socket (int fd,
132  DBusString *buffer,
133  int count);
134 int _dbus_write_socket (int fd,
135  const DBusString *buffer,
136  int start,
137  int len);
138 int _dbus_write_socket_two (int fd,
139  const DBusString *buffer1,
140  int start1,
141  int len1,
142  const DBusString *buffer2,
143  int start2,
144  int len2);
145 
147  DBusString *buffer,
148  int count,
149  int *fds,
150  int *n_fds);
151 int _dbus_write_socket_with_unix_fds (int fd,
152  const DBusString *buffer,
153  int start,
154  int len,
155  const int *fds,
156  int n_fds);
157 int _dbus_write_socket_with_unix_fds_two (int fd,
158  const DBusString *buffer1,
159  int start1,
160  int len1,
161  const DBusString *buffer2,
162  int start2,
163  int len2,
164  const int *fds,
165  int n_fds);
166 
167 dbus_bool_t _dbus_socket_is_invalid (int fd);
168 
169 int _dbus_connect_tcp_socket (const char *host,
170  const char *port,
171  const char *family,
172  DBusError *error);
173 int _dbus_connect_tcp_socket_with_nonce (const char *host,
174  const char *port,
175  const char *family,
176  const char *noncefile,
177  DBusError *error);
178 int _dbus_listen_tcp_socket (const char *host,
179  const char *port,
180  const char *family,
181  DBusString *retport,
182  int **fds_p,
183  DBusError *error);
184 int _dbus_accept (int listen_fd);
185 
186 
188  DBusCredentials *credentials,
189  DBusError *error);
191  DBusError *error);
192 
194  const DBusString *username);
197 
199  dbus_uid_t *uid_p);
201  dbus_gid_t *gid_p);
203  dbus_gid_t **group_ids,
204  int *n_group_ids);
206  DBusError *error);
208 dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid);
209 
211  DBusCredentials *credentials);
212 
213 dbus_bool_t _dbus_daemon_is_session_bus_address_published (const char *scope);
214 
215 dbus_bool_t _dbus_daemon_publish_session_bus_address (const char* address, const char* shm_name);
216 
217 void _dbus_daemon_unpublish_session_bus_address (void);
218 
220 
224 typedef struct DBusAtomic DBusAtomic;
225 
230 {
231 #ifdef DBUS_WIN
232  volatile long value;
233 #else
234  volatile dbus_int32_t value;
235 #endif
236 };
237 
238 /* The value we get from autofoo is in the form of a cpp expression;
239  * convert that to a conventional defined/undef switch. (We can't get
240  * the conventional defined/undef because of multiarch builds only running
241  * ./configure once, on Darwin.) */
242 #if DBUS_HAVE_ATOMIC_INT_COND
243 # define DBUS_HAVE_ATOMIC_INT 1
244 #else
245 # undef DBUS_HAVE_ATOMIC_INT
246 #endif
247 
251 
252 
253 /* AIX uses different values for poll */
254 
255 #ifdef _AIX
256 
257 #define _DBUS_POLLIN 0x0001
258 
259 #define _DBUS_POLLPRI 0x0004
260 
261 #define _DBUS_POLLOUT 0x0002
262 
263 #define _DBUS_POLLERR 0x4000
264 
265 #define _DBUS_POLLHUP 0x2000
266 
267 #define _DBUS_POLLNVAL 0x8000
268 #elif defined(__HAIKU__)
269 
270 #define _DBUS_POLLIN 0x0001
271 
272 #define _DBUS_POLLOUT 0x0002
273 
274 #define _DBUS_POLLERR 0x0004
275 
276 #define _DBUS_POLLPRI 0x0020
277 
278 #define _DBUS_POLLHUP 0x0080
279 
280 #define _DBUS_POLLNVAL 0x1000
281 #else
282 
283 #define _DBUS_POLLIN 0x0001
284 
285 #define _DBUS_POLLPRI 0x0002
286 
287 #define _DBUS_POLLOUT 0x0004
288 
289 #define _DBUS_POLLERR 0x0008
290 
291 #define _DBUS_POLLHUP 0x0010
292 
293 #define _DBUS_POLLNVAL 0x0020
294 #endif
295 
299 typedef struct
300 {
301  int fd;
302  short events;
303  short revents;
304 } DBusPollFD;
305 
306 int _dbus_poll (DBusPollFD *fds,
307  int n_fds,
308  int timeout_milliseconds);
309 
310 void _dbus_sleep_milliseconds (int milliseconds);
311 
312 void _dbus_get_monotonic_time (long *tv_sec,
313  long *tv_usec);
314 
315 void _dbus_get_real_time (long *tv_sec,
316  long *tv_usec);
317 
322  DBusError *error);
324  DBusError *error);
325 
327  const DBusString *next_component);
329  DBusString *dirname);
331 
334 
337 
339 typedef struct DBusDirIter DBusDirIter;
340 
342  DBusError *error);
344  DBusString *filename,
345  DBusError *error);
347 
349  DBusError *error);
350 
351 void _dbus_fd_set_close_on_exec (intptr_t fd);
352 
353 const char* _dbus_get_tmpdir (void);
354 
359  int n_bytes);
360 void _dbus_generate_random_bytes_buffer (char *buffer,
361  int n_bytes);
363  int n_bytes);
365  int n_bytes);
366 
367 const char* _dbus_error_from_errno (int error_number);
368 const char* _dbus_error_from_system_errno (void);
369 
370 void _dbus_set_errno_to_zero (void);
376 const char* _dbus_strerror_from_errno (void);
377 
378 void _dbus_disable_sigpipe (void);
379 
380 
381 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
382 
383 int _dbus_printf_string_upper_bound (const char *format,
384  va_list args);
385 
386 
390 typedef struct
391 {
392  unsigned long mode;
393  unsigned long nlink;
394  dbus_uid_t uid;
395  dbus_gid_t gid;
396  unsigned long size;
397  unsigned long atime;
398  unsigned long mtime;
399  unsigned long ctime;
400 } DBusStat;
401 
402 dbus_bool_t _dbus_stat (const DBusString *filename,
403  DBusStat *statbuf,
404  DBusError *error);
406  int *fd2,
407  dbus_bool_t blocking,
408  DBusError *error);
409 
410 void _dbus_print_backtrace (void);
411 
413  DBusPipe *print_pid_pipe,
414  DBusError *error,
415  dbus_bool_t keep_umask);
416 
417 dbus_bool_t _dbus_verify_daemon_user (const char *user);
418 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
419  DBusError *error);
420 
422  DBusPipe *print_pid_pipe,
423  dbus_pid_t pid_to_write,
424  DBusError *error);
425 
426 dbus_bool_t _dbus_command_for_pid (unsigned long pid,
427  DBusString *str,
428  int max_len,
429  DBusError *error);
430 
432 typedef void (* DBusSignalHandler) (int sig);
433 
434 void _dbus_set_signal_handler (int sig,
435  DBusSignalHandler handler);
436 
437 dbus_bool_t _dbus_user_at_console (const char *username,
438  DBusError *error);
439 
440 void _dbus_init_system_log (void);
441 
442 typedef enum {
443  DBUS_SYSTEM_LOG_INFO,
444  DBUS_SYSTEM_LOG_SECURITY,
445  DBUS_SYSTEM_LOG_FATAL
446 } DBusSystemLogSeverity;
447 
448 void _dbus_system_log (DBusSystemLogSeverity severity, const char *msg, ...) _DBUS_GNUC_PRINTF (2, 3);
449 void _dbus_system_logv (DBusSystemLogSeverity severity, const char *msg, va_list args);
450 
451 /* Define DBUS_VA_COPY() to do the right thing for copying va_list variables.
452  * config.h may have already defined DBUS_VA_COPY as va_copy or __va_copy.
453  */
454 #if !defined (DBUS_VA_COPY)
455 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
456 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
457 # elif defined (DBUS_VA_COPY_AS_ARRAY)
458 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
459 # else /* va_list is a pointer */
460 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
461 # endif /* va_list is a pointer */
462 #endif /* !DBUS_VA_COPY */
463 
464 
469 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
470  (((const char*)&(p))[(i)])
471 
476 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
477  (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
478  _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
479  _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
480  _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
481  _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
482  _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
483  _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
484  _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
485 
486 dbus_bool_t _dbus_get_autolaunch_address (const char *scope,
487  DBusString *address,
488  DBusError *error);
489 
491  DBusString *address,
492  DBusError *error);
493 
497 typedef union DBusGUID DBusGUID;
498 
500  dbus_bool_t create_if_not_found,
501  DBusError *error);
502 
509 
511  const char *suffix,
512  DBusList **dir_list);
513 
514 unsigned long _dbus_pid_for_log (void);
515 
516 /* FIXME move back to dbus-sysdeps-unix.h probably -
517  * the PID file handling just needs a little more abstraction
518  * in the bus daemon first.
519  */
520 dbus_pid_t _dbus_getpid (void);
521 
522 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
523  DBusError *error);
524 
525 void _dbus_flush_caches (void);
526 
527 void _dbus_request_file_descriptor_limit (unsigned int limit);
528 
529 /*
530  * replaces the term DBUS_PREFIX in configure_time_path by the
531  * current dbus installation directory. On unix this function is a noop
532  *
533  * @param configure_time_path
534  * @return real path
535  */
536 const char *
537 _dbus_replace_install_prefix (const char *configure_time_path);
538 
542 
543 
544 #ifdef DBUS_WIN
545 #include "dbus-sysdeps-win.h"
546 #endif
547 
548 #endif /* DBUS_SYSDEPS_H */
An atomic integer safe to increment or decrement from multiple threads.
Definition: dbus-sysdeps.h:229
dbus_int32_t _dbus_atomic_get(DBusAtomic *atomic)
Atomically get the value of an integer.
dbus_bool_t _dbus_append_system_config_file(DBusString *str)
Append the absolute path of the system.conf file (there is no system bus on Windows so this can just ...
volatile dbus_int32_t value
Value of the atomic integer.
Definition: dbus-sysdeps.h:234
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.
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.
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.
dbus_bool_t _dbus_string_get_dirname(const DBusString *filename, DBusString *dirname)
Get the directory name from a complete filename.
#define DBUS_BEGIN_DECLS
Macro used prior to declaring functions in the D-Bus header files.
dbus_bool_t _dbus_path_is_absolute(const DBusString *filename)
Checks whether the filename is an absolute path.
dbus_bool_t _dbus_delete_directory(const DBusString *filename, DBusError *error)
Removes a directory; Directory must be empty.
dbus_bool_t _dbus_socket_can_pass_unix_fd(int fd)
Checks whether file descriptors may be passed via the socket.
void _dbus_system_log(DBusSystemLogSeverity severity, const char *msg,...)
Log a message to the system log file (e.g.
Portable struct with stat() results.
Definition: dbus-sysdeps.h:390
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.
void _dbus_directory_close(DBusDirIter *iter)
Closes a directory iteration.
void _dbus_flush_caches(void)
Called when the bus daemon is signaled to reload its configuration; any caches should be nuked...
dbus_bool_t _dbus_directory_get_next_file(DBusDirIter *iter, DBusString *filename, DBusError *error)
Get next file in the directory.
dbus_bool_t _dbus_full_duplex_pipe(int *fd1, int *fd2, dbus_bool_t blocking, DBusError *error)
Creates a full-duplex pipe (as in socketpair()).
int _dbus_write_socket_two(int 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.
unsigned long atime
Access time.
Definition: dbus-sysdeps.h:397
dbus_bool_t _dbus_check_setuid(void)
NOTE: If you modify this function, please also consider making the corresponding change in GLib...
dbus_bool_t _dbus_threads_init_platform_specific(void)
Initialize threads as in dbus_threads_init_default(), appropriately for the platform.
dbus_bool_t _dbus_get_standard_session_servicedirs(DBusList **dirs)
Returns the standard directories for a session bus to look for service activation files...
int _dbus_read_socket_with_unix_fds(int fd, DBusString *buffer, int count, int *fds, int *n_fds)
Like _dbus_read_socket() but also tries to read unix fds from the socket.
A portable struct pollfd wrapper.
Definition: dbus-sysdeps.h:299
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
int _dbus_accept(int listen_fd)
Accepts a connection on a listening socket.
DBusDirIter * _dbus_directory_open(const DBusString *filename, DBusError *error)
Open a directory to iterate over.
dbus_pid_t _dbus_getpid(void)
Gets our process ID.
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...
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.
short events
Events to poll for.
Definition: dbus-sysdeps.h:302
dbus_bool_t _dbus_read_credentials_socket(int client_fd, DBusCredentials *credentials, DBusError *error)
Reads a single byte which must be nul (an error occurs otherwise), and reads unix credentials if avai...
const char * _dbus_getenv(const char *varname)
Wrapper for getenv().
Definition: dbus-sysdeps.c:183
void _dbus_abort(void)
Aborts the program with SIGABRT (dumping core).
Definition: dbus-sysdeps.c:80
dbus_bool_t _dbus_get_autolaunch_address(const char *scope, DBusString *address, DBusError *error)
Returns the address of a new session bus.
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:612
Internals of directory iterator.
unsigned long mode
File mode.
Definition: dbus-sysdeps.h:392
void _dbus_get_monotonic_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
unsigned long dbus_pid_t
A process ID.
Definition: dbus-sysdeps.h:98
dbus_int32_t _dbus_atomic_dec(DBusAtomic *atomic)
Atomically decrement an integer.
dbus_bool_t _dbus_change_to_daemon_user(const char *user, DBusError *error)
Changes the user and group the bus is running as.
void _dbus_fd_set_close_on_exec(intptr_t fd)
Sets the file descriptor to be close on exec.
void _dbus_get_real_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
dbus_gid_t gid
Group owning file.
Definition: dbus-sysdeps.h:395
dbus_bool_t _dbus_concat_dir_and_file(DBusString *dir, const DBusString *next_component)
Appends the given filename to the given directory.
dbus_bool_t _dbus_generate_random_ascii(DBusString *str, int n_bytes)
Generates the given number of random bytes, where the bytes are chosen from the alphanumeric ASCII su...
Definition: dbus-sysdeps.c:573
void _dbus_generate_random_bytes_buffer(char *buffer, int n_bytes)
Fills n_bytes of the given buffer with random bytes.
Definition: dbus-sysdeps.c:541
dbus_bool_t _dbus_setenv(const char *varname, const char *value)
Wrapper for setenv().
Definition: dbus-sysdeps.c:112
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition: dbus-types.h:35
int _dbus_poll(DBusPollFD *fds, int n_fds, int timeout_milliseconds)
Wrapper for poll().
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.
int _dbus_read_socket(int fd, DBusString *buffer, int count)
Like _dbus_read(), but only works on sockets so is available on Windows.
void(* DBusSignalHandler)(int sig)
A UNIX signal handler.
Definition: dbus-sysdeps.h:432
dbus_bool_t _dbus_get_is_errno_enomem(void)
See if errno is ENOMEM.
Definition: dbus-sysdeps.c:737
Object representing an exception.
Definition: dbus-errors.h:48
void _dbus_disable_sigpipe(void)
signal (SIGPIPE, SIG_IGN);
dbus_bool_t _dbus_send_credentials_socket(int server_fd, DBusError *error)
Sends a single nul byte with our UNIX credentials as ancillary data.
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.
dbus_int32_t _dbus_atomic_inc(DBusAtomic *atomic)
Atomically increments an integer.
unsigned long ctime
Creation time.
Definition: dbus-sysdeps.h:399
int fd
File descriptor.
Definition: dbus-sysdeps.h:301
dbus_bool_t _dbus_create_directory(const DBusString *filename, DBusError *error)
Creates a directory; succeeds if the directory is created or already existed.
dbus_bool_t _dbus_credentials_add_from_current_process(DBusCredentials *credentials)
Adds the credentials of the current process to the passed-in credentials object.
unsigned long nlink
Number of hard links.
Definition: dbus-sysdeps.h:393
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).
dbus_uid_t uid
User owning file.
Definition: dbus-sysdeps.h:394
void _dbus_system_logv(DBusSystemLogSeverity severity, const char *msg, va_list args)
Log a message to the system log file (e.g.
dbus_bool_t _dbus_verify_daemon_user(const char *user)
Verify that after the fork we can successfully change to this user.
const char * _dbus_get_tmpdir(void)
Gets the temporary files directory by inspecting the environment variables TMPDIR, TMP, and TEMP in that order.
dbus_bool_t _dbus_get_is_errno_nonzero(void)
See if errno is set.
Definition: dbus-sysdeps.c:727
dbus_bool_t _dbus_stat(const DBusString *filename, DBusStat *statbuf, DBusError *error)
stat() wrapper.
const char * _dbus_strerror_from_errno(void)
Get error message from errno.
Definition: dbus-sysdeps.c:767
const char * _dbus_error_from_system_errno(void)
Converts the current system errno value into a DBusError name.
Definition: dbus-sysdeps.c:704
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...
dbus_bool_t _dbus_clearenv(void)
Wrapper for clearenv().
Definition: dbus-sysdeps.c:199
void _dbus_generate_pseudorandom_bytes_buffer(char *buffer, int n_bytes)
Random numbers.
Definition: dbus-sysdeps.c:506
int _dbus_write_socket(int fd, const DBusString *buffer, int start, int len)
Like _dbus_write(), but only supports sockets and is thus available on Windows.
dbus_bool_t _dbus_get_is_errno_eintr(void)
See if errno is EINTR.
Definition: dbus-sysdeps.c:747
void _dbus_set_signal_handler(int sig, DBusSignalHandler handler)
Installs a UNIX signal handler.
void _dbus_exit(int code)
Exit the process, returning the given value.
A node in a linked list.
Definition: dbus-list.h:34
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:224
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.
dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock(void)
See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently for Winsock so is abstracted) ...
dbus_bool_t _dbus_user_at_console(const char *username, DBusError *error)
Checks if user is at the console.
char ** _dbus_get_environment(void)
Gets a NULL-terminated list of key=value pairs from the environment.
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.
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. ...
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&#39;re running on from the dbus configuration.
unsigned long mtime
Modify time.
Definition: dbus-sysdeps.h:398
void _dbus_print_backtrace(void)
On GNU libc systems, print a crude backtrace to stderr.
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...
unsigned long dbus_gid_t
A group ID.
Definition: dbus-sysdeps.h:102
unsigned long size
Size of file.
Definition: dbus-sysdeps.h:396
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.
int dbus_int32_t
A 32-bit signed integer on all platforms.
dbus_bool_t _dbus_close_socket(int fd, DBusError *error)
Closes a socket.
dbus_bool_t _dbus_append_session_config_file(DBusString *str)
Append the absolute path of the session.conf file.
unsigned long dbus_uid_t
A user ID.
Definition: dbus-sysdeps.h:100
void _dbus_set_errno_to_zero(void)
Assign 0 to the global errno variable.
Definition: dbus-sysdeps.c:713
short revents
Events that occurred.
Definition: dbus-sysdeps.h:303
dbus_bool_t _dbus_get_is_errno_epipe(void)
See if errno is EPIPE.
Definition: dbus-sysdeps.c:757
void _dbus_request_file_descriptor_limit(unsigned int limit)
Attempt to ensure that the current process can open at least file descriptors.
dbus_bool_t _dbus_get_standard_system_servicedirs(DBusList **dirs)
Returns the standard directories for a system bus to look for service activation files.
void _dbus_sleep_milliseconds(int milliseconds)
Sleeps the given number of milliseconds.
int _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.
int _dbus_listen_tcp_socket(const char *host, const char *port, const char *family, DBusString *retport, int **fds_p, DBusError *error)
Creates a socket and binds it to the given path, then listens on the socket.
dbus_bool_t _dbus_generate_random_bytes(DBusString *str, int n_bytes)
Generates the given number of random bytes, using the best mechanism we can come up with...
dbus_bool_t _dbus_credentials_add_from_user(DBusCredentials *credentials, const DBusString *username)
Adds the credentials corresponding to the given username.
#define DBUS_END_DECLS
Macro used after declaring functions in the D-Bus header files.