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00025 #ifndef DBUS_SYSDEPS_H
00026 #define DBUS_SYSDEPS_H
00027
00028 #include <config.h>
00029
00030 #include <dbus/dbus-errors.h>
00031
00032
00033
00034
00035 #include <string.h>
00036 #include <stdarg.h>
00037
00038
00039
00040
00041
00042
00043 #ifdef HAVE_POLL
00044 #include <sys/poll.h>
00045 #endif
00046
00047 DBUS_BEGIN_DECLS
00048
00049 #ifdef DBUS_WIN
00050 #define _DBUS_PATH_SEPARATOR ";"
00051 #else
00052 #define _DBUS_PATH_SEPARATOR ":"
00053 #endif
00054
00055
00056
00058 typedef struct DBusString DBusString;
00059
00061 typedef struct DBusList DBusList;
00062
00064 typedef struct DBusCredentials DBusCredentials;
00065
00072
00073
00074
00075
00076
00077
00078
00079
00080
00081 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
00082 #define _DBUS_GNUC_PRINTF( format_idx, arg_idx ) \
00083 __attribute__((__format__ (__printf__, format_idx, arg_idx)))
00084 #define _DBUS_GNUC_NORETURN \
00085 __attribute__((__noreturn__))
00086 #else
00087 #define _DBUS_GNUC_PRINTF( format_idx, arg_idx )
00088 #define _DBUS_GNUC_NORETURN
00089 #endif
00090
00098 void _dbus_abort (void) _DBUS_GNUC_NORETURN;
00099
00100 dbus_bool_t _dbus_check_setuid (void);
00101 const char* _dbus_getenv (const char *varname);
00102 dbus_bool_t _dbus_clearenv (void);
00103 char ** _dbus_get_environment (void);
00104
00106 typedef unsigned long dbus_pid_t;
00108 typedef unsigned long dbus_uid_t;
00110 typedef unsigned long dbus_gid_t;
00111
00113 #define DBUS_PID_UNSET ((dbus_pid_t) -1)
00114
00115 #define DBUS_UID_UNSET ((dbus_uid_t) -1)
00116
00117 #define DBUS_GID_UNSET ((dbus_gid_t) -1)
00118
00120 #define DBUS_PID_FORMAT "%lu"
00121
00122 #define DBUS_UID_FORMAT "%lu"
00123
00124 #define DBUS_GID_FORMAT "%lu"
00125
00126
00137 dbus_bool_t _dbus_open_tcp_socket (int *fd,
00138 DBusError *error);
00139 dbus_bool_t _dbus_close_socket (int fd,
00140 DBusError *error);
00141 int _dbus_read_socket (int fd,
00142 DBusString *buffer,
00143 int count);
00144 int _dbus_write_socket (int fd,
00145 const DBusString *buffer,
00146 int start,
00147 int len);
00148 int _dbus_write_socket_two (int fd,
00149 const DBusString *buffer1,
00150 int start1,
00151 int len1,
00152 const DBusString *buffer2,
00153 int start2,
00154 int len2);
00155 int _dbus_connect_tcp_socket (const char *host,
00156 const char *port,
00157 const char *family,
00158 DBusError *error);
00159 int _dbus_listen_tcp_socket (const char *host,
00160 const char *port,
00161 const char *family,
00162 DBusString *retport,
00163 int **fds_p,
00164 DBusError *error);
00165 int _dbus_accept (int listen_fd);
00166
00167
00168 dbus_bool_t _dbus_read_credentials_socket (int client_fd,
00169 DBusCredentials *credentials,
00170 DBusError *error);
00171 dbus_bool_t _dbus_send_credentials_socket (int server_fd,
00172 DBusError *error);
00173
00174 dbus_bool_t _dbus_credentials_add_from_user (DBusCredentials *credentials,
00175 const DBusString *username);
00176 dbus_bool_t _dbus_credentials_add_from_current_process (DBusCredentials *credentials);
00177 dbus_bool_t _dbus_append_user_from_current_process (DBusString *str);
00178
00179 dbus_bool_t _dbus_parse_unix_user_from_config (const DBusString *username,
00180 dbus_uid_t *uid_p);
00181 dbus_bool_t _dbus_parse_unix_group_from_config (const DBusString *groupname,
00182 dbus_gid_t *gid_p);
00183 dbus_bool_t _dbus_unix_groups_from_uid (dbus_uid_t uid,
00184 dbus_gid_t **group_ids,
00185 int *n_group_ids);
00186 dbus_bool_t _dbus_unix_user_is_at_console (dbus_uid_t uid,
00187 DBusError *error);
00188 dbus_bool_t _dbus_unix_user_is_process_owner (dbus_uid_t uid);
00189 dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid);
00190
00191 dbus_bool_t _dbus_append_keyring_directory_for_credentials (DBusString *directory,
00192 DBusCredentials *credentials);
00193
00197 typedef struct DBusAtomic DBusAtomic;
00198
00202 struct DBusAtomic
00203 {
00204 #ifdef DBUS_WIN
00205 volatile long value;
00206 #else
00207 volatile dbus_int32_t value;
00208 #endif
00209 };
00210
00211
00212
00213
00214
00215 #if DBUS_HAVE_ATOMIC_INT_COND
00216 # define DBUS_HAVE_ATOMIC_INT 1
00217 #else
00218 # undef DBUS_HAVE_ATOMIC_INT
00219 #endif
00220
00221 dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic);
00222 dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic);
00223
00224
00225
00226
00227 #ifdef _AIX
00228
00229 #define _DBUS_POLLIN 0x0001
00230
00231 #define _DBUS_POLLPRI 0x0004
00232
00233 #define _DBUS_POLLOUT 0x0002
00234
00235 #define _DBUS_POLLERR 0x4000
00236
00237 #define _DBUS_POLLHUP 0x2000
00238
00239 #define _DBUS_POLLNVAL 0x8000
00240 #elif defined(__HAIKU__)
00241
00242 #define _DBUS_POLLIN 0x0001
00243
00244 #define _DBUS_POLLOUT 0x0002
00245
00246 #define _DBUS_POLLERR 0x0004
00247
00248 #define _DBUS_POLLPRI 0x0020
00249
00250 #define _DBUS_POLLHUP 0x0080
00251
00252 #define _DBUS_POLLNVAL 0x1000
00253 #else
00254
00255 #define _DBUS_POLLIN 0x0001
00256
00257 #define _DBUS_POLLPRI 0x0002
00258
00259 #define _DBUS_POLLOUT 0x0004
00260
00261 #define _DBUS_POLLERR 0x0008
00262
00263 #define _DBUS_POLLHUP 0x0010
00264
00265 #define _DBUS_POLLNVAL 0x0020
00266 #endif
00267
00271 typedef struct
00272 {
00273 int fd;
00274 short events;
00275 short revents;
00276 } DBusPollFD;
00277
00278 int _dbus_poll (DBusPollFD *fds,
00279 int n_fds,
00280 int timeout_milliseconds);
00281
00282 void _dbus_sleep_milliseconds (int milliseconds);
00283
00284 void _dbus_get_current_time (long *tv_sec,
00285 long *tv_usec);
00286
00290 dbus_bool_t _dbus_file_exists (const char *file);
00291 dbus_bool_t _dbus_file_get_contents (DBusString *str,
00292 const DBusString *filename,
00293 DBusError *error);
00294 dbus_bool_t _dbus_string_save_to_file (const DBusString *str,
00295 const DBusString *filename,
00296 DBusError *error);
00297
00298 dbus_bool_t _dbus_make_file_world_readable (const DBusString *filename,
00299 DBusError *error);
00300
00301 dbus_bool_t _dbus_create_file_exclusively (const DBusString *filename,
00302 DBusError *error);
00303 dbus_bool_t _dbus_delete_file (const DBusString *filename,
00304 DBusError *error);
00305 dbus_bool_t _dbus_create_directory (const DBusString *filename,
00306 DBusError *error);
00307 dbus_bool_t _dbus_delete_directory (const DBusString *filename,
00308 DBusError *error);
00309
00310 dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir,
00311 const DBusString *next_component);
00312 dbus_bool_t _dbus_string_get_dirname (const DBusString *filename,
00313 DBusString *dirname);
00314 dbus_bool_t _dbus_path_is_absolute (const DBusString *filename);
00315
00316 dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs);
00317 dbus_bool_t _dbus_get_standard_system_servicedirs (DBusList **dirs);
00318
00319 dbus_bool_t _dbus_append_system_config_file (DBusString *str);
00320 dbus_bool_t _dbus_append_session_config_file (DBusString *str);
00321
00322 typedef struct {
00323 int fd_or_handle;
00324 } DBusPipe;
00325
00326 void _dbus_pipe_init (DBusPipe *pipe,
00327 int fd);
00328 void _dbus_pipe_init_stdout (DBusPipe *pipe);
00329 int _dbus_pipe_write (DBusPipe *pipe,
00330 const DBusString *buffer,
00331 int start,
00332 int len,
00333 DBusError *error);
00334 int _dbus_pipe_close (DBusPipe *pipe,
00335 DBusError *error);
00336 dbus_bool_t _dbus_pipe_is_valid (DBusPipe *pipe);
00337 void _dbus_pipe_invalidate (DBusPipe *pipe);
00338 dbus_bool_t _dbus_pipe_is_stdout_or_stderr (DBusPipe *pipe);
00339
00340
00342 typedef struct DBusDirIter DBusDirIter;
00343
00344 DBusDirIter* _dbus_directory_open (const DBusString *filename,
00345 DBusError *error);
00346 dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter,
00347 DBusString *filename,
00348 DBusError *error);
00349 void _dbus_directory_close (DBusDirIter *iter);
00350
00351 dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir,
00352 DBusError *error);
00353
00354 void _dbus_fd_set_close_on_exec (int fd);
00355
00356 const char* _dbus_get_tmpdir (void);
00357
00361 void _dbus_generate_pseudorandom_bytes_buffer (char *buffer,
00362 int n_bytes);
00363 void _dbus_generate_random_bytes_buffer (char *buffer,
00364 int n_bytes);
00365 dbus_bool_t _dbus_generate_random_bytes (DBusString *str,
00366 int n_bytes);
00367 dbus_bool_t _dbus_generate_random_ascii (DBusString *str,
00368 int n_bytes);
00369
00370 const char* _dbus_error_from_errno (int error_number);
00371
00372 void _dbus_set_errno_to_zero (void);
00373 dbus_bool_t _dbus_get_is_errno_nonzero (void);
00374 dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (void);
00375 dbus_bool_t _dbus_get_is_errno_enomem (void);
00376 dbus_bool_t _dbus_get_is_errno_eintr (void);
00377 dbus_bool_t _dbus_get_is_errno_epipe (void);
00378 const char* _dbus_strerror_from_errno (void);
00379
00380 void _dbus_disable_sigpipe (void);
00381
00382
00383 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
00384
00385 int _dbus_printf_string_upper_bound (const char *format,
00386 va_list args);
00387
00388
00392 typedef struct
00393 {
00394 unsigned long mode;
00395 unsigned long nlink;
00396 dbus_uid_t uid;
00397 dbus_gid_t gid;
00398 unsigned long size;
00399 unsigned long atime;
00400 unsigned long mtime;
00401 unsigned long ctime;
00402 } DBusStat;
00403
00404 dbus_bool_t _dbus_stat (const DBusString *filename,
00405 DBusStat *statbuf,
00406 DBusError *error);
00407 dbus_bool_t _dbus_full_duplex_pipe (int *fd1,
00408 int *fd2,
00409 dbus_bool_t blocking,
00410 DBusError *error);
00411
00412 void _dbus_print_backtrace (void);
00413
00414 dbus_bool_t _dbus_become_daemon (const DBusString *pidfile,
00415 DBusPipe *print_pid_pipe,
00416 DBusError *error,
00417 dbus_bool_t keep_umask);
00418
00419 dbus_bool_t _dbus_verify_daemon_user (const char *user);
00420
00421 dbus_bool_t _dbus_write_pid_to_file_and_pipe (const DBusString *pidfile,
00422 DBusPipe *print_pid_pipe,
00423 dbus_pid_t pid_to_write,
00424 DBusError *error);
00425
00426 dbus_bool_t _dbus_command_for_pid (unsigned long pid,
00427 DBusString *str,
00428 int max_len,
00429 DBusError *error);
00430
00432 typedef void (* DBusSignalHandler) (int sig);
00433
00434 void _dbus_set_signal_handler (int sig,
00435 DBusSignalHandler handler);
00436
00437 dbus_bool_t _dbus_user_at_console (const char *username,
00438 DBusError *error);
00439
00440 void _dbus_init_system_log (void);
00441
00442 typedef enum {
00443 DBUS_SYSTEM_LOG_INFO,
00444 DBUS_SYSTEM_LOG_SECURITY,
00445 DBUS_SYSTEM_LOG_FATAL
00446 } DBusSystemLogSeverity;
00447
00448 void _dbus_system_log (DBusSystemLogSeverity severity, const char *msg, ...) _DBUS_GNUC_PRINTF (2, 3);
00449 void _dbus_system_logv (DBusSystemLogSeverity severity, const char *msg, va_list args);
00450
00451
00452
00453
00454 #if !defined (DBUS_VA_COPY)
00455 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
00456 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
00457 # elif defined (DBUS_VA_COPY_AS_ARRAY)
00458 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
00459 # else
00460 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
00461 # endif
00462 #endif
00463
00464
00469 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
00470 (((const char*)&(p))[(i)])
00471
00476 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
00477 (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
00478 _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
00479 _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
00480 _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
00481 _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
00482 _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
00483 _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
00484 _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
00485
00486 dbus_bool_t _dbus_get_autolaunch_address (DBusString *address,
00487 DBusError *error);
00488
00489 dbus_bool_t _dbus_lookup_session_address (dbus_bool_t *supported,
00490 DBusString *address,
00491 DBusError *error);
00492
00496 typedef union DBusGUID DBusGUID;
00497
00498 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
00499 dbus_bool_t create_if_not_found,
00500 DBusError *error);
00501
00507 dbus_bool_t _dbus_threads_init_platform_specific (void);
00508
00509 dbus_bool_t _dbus_split_paths_and_append (DBusString *dirs,
00510 const char *suffix,
00511 DBusList **dir_list);
00512
00513 unsigned long _dbus_pid_for_log (void);
00514
00515
00516
00517
00518
00519 dbus_pid_t _dbus_getpid (void);
00520
00521 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
00522 DBusError *error);
00523
00524 void _dbus_flush_caches (void);
00525
00528 DBUS_END_DECLS
00529
00530 #endif