00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
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 const char* _dbus_getenv (const char *varname);
00101 dbus_bool_t _dbus_setenv (const char *varname,
00102 const char *value);
00103 dbus_bool_t _dbus_clearenv (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 #else
00241
00242 #define _DBUS_POLLIN 0x0001
00243
00244 #define _DBUS_POLLPRI 0x0002
00245
00246 #define _DBUS_POLLOUT 0x0004
00247
00248 #define _DBUS_POLLERR 0x0008
00249
00250 #define _DBUS_POLLHUP 0x0010
00251
00252 #define _DBUS_POLLNVAL 0x0020
00253 #endif
00254
00258 typedef struct
00259 {
00260 int fd;
00261 short events;
00262 short revents;
00263 } DBusPollFD;
00264
00265 int _dbus_poll (DBusPollFD *fds,
00266 int n_fds,
00267 int timeout_milliseconds);
00268
00269 void _dbus_sleep_milliseconds (int milliseconds);
00270
00271 void _dbus_get_current_time (long *tv_sec,
00272 long *tv_usec);
00273
00277 dbus_bool_t _dbus_file_exists (const char *file);
00278 dbus_bool_t _dbus_file_get_contents (DBusString *str,
00279 const DBusString *filename,
00280 DBusError *error);
00281 dbus_bool_t _dbus_string_save_to_file (const DBusString *str,
00282 const DBusString *filename,
00283 DBusError *error);
00284
00285 dbus_bool_t _dbus_make_file_world_readable (const DBusString *filename,
00286 DBusError *error);
00287
00288 dbus_bool_t _dbus_create_file_exclusively (const DBusString *filename,
00289 DBusError *error);
00290 dbus_bool_t _dbus_delete_file (const DBusString *filename,
00291 DBusError *error);
00292 dbus_bool_t _dbus_create_directory (const DBusString *filename,
00293 DBusError *error);
00294 dbus_bool_t _dbus_delete_directory (const DBusString *filename,
00295 DBusError *error);
00296
00297 dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir,
00298 const DBusString *next_component);
00299 dbus_bool_t _dbus_string_get_dirname (const DBusString *filename,
00300 DBusString *dirname);
00301 dbus_bool_t _dbus_path_is_absolute (const DBusString *filename);
00302
00303 dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs);
00304 dbus_bool_t _dbus_get_standard_system_servicedirs (DBusList **dirs);
00305
00306 dbus_bool_t _dbus_append_system_config_file (DBusString *str);
00307 dbus_bool_t _dbus_append_session_config_file (DBusString *str);
00308
00309 typedef struct {
00310 int fd_or_handle;
00311 } DBusPipe;
00312
00313 void _dbus_pipe_init (DBusPipe *pipe,
00314 int fd);
00315 void _dbus_pipe_init_stdout (DBusPipe *pipe);
00316 int _dbus_pipe_write (DBusPipe *pipe,
00317 const DBusString *buffer,
00318 int start,
00319 int len,
00320 DBusError *error);
00321 int _dbus_pipe_close (DBusPipe *pipe,
00322 DBusError *error);
00323 dbus_bool_t _dbus_pipe_is_valid (DBusPipe *pipe);
00324 void _dbus_pipe_invalidate (DBusPipe *pipe);
00325 dbus_bool_t _dbus_pipe_is_stdout_or_stderr (DBusPipe *pipe);
00326
00327
00329 typedef struct DBusDirIter DBusDirIter;
00330
00331 DBusDirIter* _dbus_directory_open (const DBusString *filename,
00332 DBusError *error);
00333 dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter,
00334 DBusString *filename,
00335 DBusError *error);
00336 void _dbus_directory_close (DBusDirIter *iter);
00337
00338 dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir,
00339 DBusError *error);
00340
00341 void _dbus_fd_set_close_on_exec (int fd);
00342
00343 const char* _dbus_get_tmpdir (void);
00344
00348 void _dbus_generate_pseudorandom_bytes_buffer (char *buffer,
00349 int n_bytes);
00350 void _dbus_generate_random_bytes_buffer (char *buffer,
00351 int n_bytes);
00352 dbus_bool_t _dbus_generate_random_bytes (DBusString *str,
00353 int n_bytes);
00354 dbus_bool_t _dbus_generate_random_ascii (DBusString *str,
00355 int n_bytes);
00356
00357 const char* _dbus_error_from_errno (int error_number);
00358
00359 void _dbus_set_errno_to_zero (void);
00360 dbus_bool_t _dbus_get_is_errno_nonzero (void);
00361 dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (void);
00362 dbus_bool_t _dbus_get_is_errno_enomem (void);
00363 dbus_bool_t _dbus_get_is_errno_eintr (void);
00364 const char* _dbus_strerror_from_errno (void);
00365
00366 void _dbus_disable_sigpipe (void);
00367
00368
00369 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
00370
00371 int _dbus_printf_string_upper_bound (const char *format,
00372 va_list args);
00373
00374
00378 typedef struct
00379 {
00380 unsigned long mode;
00381 unsigned long nlink;
00382 dbus_uid_t uid;
00383 dbus_gid_t gid;
00384 unsigned long size;
00385 unsigned long atime;
00386 unsigned long mtime;
00387 unsigned long ctime;
00388 } DBusStat;
00389
00390 dbus_bool_t _dbus_stat (const DBusString *filename,
00391 DBusStat *statbuf,
00392 DBusError *error);
00393 dbus_bool_t _dbus_full_duplex_pipe (int *fd1,
00394 int *fd2,
00395 dbus_bool_t blocking,
00396 DBusError *error);
00397
00398 void _dbus_print_backtrace (void);
00399
00400 dbus_bool_t _dbus_become_daemon (const DBusString *pidfile,
00401 DBusPipe *print_pid_pipe,
00402 DBusError *error);
00403
00404 dbus_bool_t _dbus_verify_daemon_user (const char *user);
00405 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
00406 DBusError *error);
00407
00408 dbus_bool_t _dbus_write_pid_to_file_and_pipe (const DBusString *pidfile,
00409 DBusPipe *print_pid_pipe,
00410 dbus_pid_t pid_to_write,
00411 DBusError *error);
00412
00414 typedef void (* DBusSignalHandler) (int sig);
00415
00416 void _dbus_set_signal_handler (int sig,
00417 DBusSignalHandler handler);
00418
00419 dbus_bool_t _dbus_user_at_console (const char *username,
00420 DBusError *error);
00421
00422
00423
00424
00425 #if !defined (DBUS_VA_COPY)
00426 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
00427 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
00428 # elif defined (DBUS_VA_COPY_AS_ARRAY)
00429 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
00430 # else
00431 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
00432 # endif
00433 #endif
00434
00435
00440 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
00441 (((const char*)&(p))[(i)])
00442
00447 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
00448 (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
00449 _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
00450 _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
00451 _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
00452 _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
00453 _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
00454 _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
00455 _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
00456
00457 dbus_bool_t _dbus_get_autolaunch_address (DBusString *address,
00458 DBusError *error);
00459
00463 typedef union DBusGUID DBusGUID;
00464
00465 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
00466 dbus_bool_t create_if_not_found,
00467 DBusError *error);
00468
00474 dbus_bool_t _dbus_threads_init_platform_specific (void);
00475
00476 dbus_bool_t _dbus_split_paths_and_append (DBusString *dirs,
00477 const char *suffix,
00478 DBusList **dir_list);
00479
00480 unsigned long _dbus_pid_for_log (void);
00481
00482
00483
00484
00485
00486 dbus_pid_t _dbus_getpid (void);
00487
00488 void _dbus_flush_caches (void);
00489
00492 DBUS_END_DECLS
00493
00494 #endif