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 char ** _dbus_get_environment (void);
00105
00107 typedef unsigned long dbus_pid_t;
00109 typedef unsigned long dbus_uid_t;
00111 typedef unsigned long dbus_gid_t;
00112
00114 #define DBUS_PID_UNSET ((dbus_pid_t) -1)
00115
00116 #define DBUS_UID_UNSET ((dbus_uid_t) -1)
00117
00118 #define DBUS_GID_UNSET ((dbus_gid_t) -1)
00119
00121 #define DBUS_PID_FORMAT "%lu"
00122
00123 #define DBUS_UID_FORMAT "%lu"
00124
00125 #define DBUS_GID_FORMAT "%lu"
00126
00127
00138 dbus_bool_t _dbus_open_tcp_socket (int *fd,
00139 DBusError *error);
00140 dbus_bool_t _dbus_close_socket (int fd,
00141 DBusError *error);
00142 int _dbus_read_socket (int fd,
00143 DBusString *buffer,
00144 int count);
00145 int _dbus_write_socket (int fd,
00146 const DBusString *buffer,
00147 int start,
00148 int len);
00149 int _dbus_write_socket_two (int fd,
00150 const DBusString *buffer1,
00151 int start1,
00152 int len1,
00153 const DBusString *buffer2,
00154 int start2,
00155 int len2);
00156 int _dbus_connect_tcp_socket (const char *host,
00157 const char *port,
00158 const char *family,
00159 DBusError *error);
00160 int _dbus_listen_tcp_socket (const char *host,
00161 const char *port,
00162 const char *family,
00163 DBusString *retport,
00164 int **fds_p,
00165 DBusError *error);
00166 int _dbus_accept (int listen_fd);
00167
00168
00169 dbus_bool_t _dbus_read_credentials_socket (int client_fd,
00170 DBusCredentials *credentials,
00171 DBusError *error);
00172 dbus_bool_t _dbus_send_credentials_socket (int server_fd,
00173 DBusError *error);
00174
00175 dbus_bool_t _dbus_credentials_add_from_user (DBusCredentials *credentials,
00176 const DBusString *username);
00177 dbus_bool_t _dbus_credentials_add_from_current_process (DBusCredentials *credentials);
00178 dbus_bool_t _dbus_append_user_from_current_process (DBusString *str);
00179
00180 dbus_bool_t _dbus_parse_unix_user_from_config (const DBusString *username,
00181 dbus_uid_t *uid_p);
00182 dbus_bool_t _dbus_parse_unix_group_from_config (const DBusString *groupname,
00183 dbus_gid_t *gid_p);
00184 dbus_bool_t _dbus_unix_groups_from_uid (dbus_uid_t uid,
00185 dbus_gid_t **group_ids,
00186 int *n_group_ids);
00187 dbus_bool_t _dbus_unix_user_is_at_console (dbus_uid_t uid,
00188 DBusError *error);
00189 dbus_bool_t _dbus_unix_user_is_process_owner (dbus_uid_t uid);
00190 dbus_bool_t _dbus_windows_user_is_process_owner (const char *windows_sid);
00191
00192 dbus_bool_t _dbus_append_keyring_directory_for_credentials (DBusString *directory,
00193 DBusCredentials *credentials);
00194
00198 typedef struct DBusAtomic DBusAtomic;
00199
00203 struct DBusAtomic
00204 {
00205 #ifdef DBUS_WIN
00206 volatile long value;
00207 #else
00208 volatile dbus_int32_t value;
00209 #endif
00210 };
00211
00212
00213
00214
00215
00216 #if DBUS_HAVE_ATOMIC_INT_COND
00217 # define DBUS_HAVE_ATOMIC_INT 1
00218 #else
00219 # undef DBUS_HAVE_ATOMIC_INT
00220 #endif
00221
00222 dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic);
00223 dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic);
00224
00225
00226
00227
00228 #ifdef _AIX
00229
00230 #define _DBUS_POLLIN 0x0001
00231
00232 #define _DBUS_POLLPRI 0x0004
00233
00234 #define _DBUS_POLLOUT 0x0002
00235
00236 #define _DBUS_POLLERR 0x4000
00237
00238 #define _DBUS_POLLHUP 0x2000
00239
00240 #define _DBUS_POLLNVAL 0x8000
00241 #elif defined(__HAIKU__)
00242
00243 #define _DBUS_POLLIN 0x0001
00244
00245 #define _DBUS_POLLOUT 0x0002
00246
00247 #define _DBUS_POLLERR 0x0004
00248
00249 #define _DBUS_POLLPRI 0x0020
00250
00251 #define _DBUS_POLLHUP 0x0080
00252
00253 #define _DBUS_POLLNVAL 0x1000
00254 #else
00255
00256 #define _DBUS_POLLIN 0x0001
00257
00258 #define _DBUS_POLLPRI 0x0002
00259
00260 #define _DBUS_POLLOUT 0x0004
00261
00262 #define _DBUS_POLLERR 0x0008
00263
00264 #define _DBUS_POLLHUP 0x0010
00265
00266 #define _DBUS_POLLNVAL 0x0020
00267 #endif
00268
00272 typedef struct
00273 {
00274 int fd;
00275 short events;
00276 short revents;
00277 } DBusPollFD;
00278
00279 int _dbus_poll (DBusPollFD *fds,
00280 int n_fds,
00281 int timeout_milliseconds);
00282
00283 void _dbus_sleep_milliseconds (int milliseconds);
00284
00285 void _dbus_get_current_time (long *tv_sec,
00286 long *tv_usec);
00287
00291 dbus_bool_t _dbus_file_exists (const char *file);
00292 dbus_bool_t _dbus_file_get_contents (DBusString *str,
00293 const DBusString *filename,
00294 DBusError *error);
00295 dbus_bool_t _dbus_string_save_to_file (const DBusString *str,
00296 const DBusString *filename,
00297 DBusError *error);
00298
00299 dbus_bool_t _dbus_make_file_world_readable (const DBusString *filename,
00300 DBusError *error);
00301
00302 dbus_bool_t _dbus_create_file_exclusively (const DBusString *filename,
00303 DBusError *error);
00304 dbus_bool_t _dbus_delete_file (const DBusString *filename,
00305 DBusError *error);
00306 dbus_bool_t _dbus_create_directory (const DBusString *filename,
00307 DBusError *error);
00308 dbus_bool_t _dbus_delete_directory (const DBusString *filename,
00309 DBusError *error);
00310
00311 dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir,
00312 const DBusString *next_component);
00313 dbus_bool_t _dbus_string_get_dirname (const DBusString *filename,
00314 DBusString *dirname);
00315 dbus_bool_t _dbus_path_is_absolute (const DBusString *filename);
00316
00317 dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs);
00318 dbus_bool_t _dbus_get_standard_system_servicedirs (DBusList **dirs);
00319
00320 dbus_bool_t _dbus_append_system_config_file (DBusString *str);
00321 dbus_bool_t _dbus_append_session_config_file (DBusString *str);
00322
00323 typedef struct {
00324 int fd_or_handle;
00325 } DBusPipe;
00326
00327 void _dbus_pipe_init (DBusPipe *pipe,
00328 int fd);
00329 void _dbus_pipe_init_stdout (DBusPipe *pipe);
00330 int _dbus_pipe_write (DBusPipe *pipe,
00331 const DBusString *buffer,
00332 int start,
00333 int len,
00334 DBusError *error);
00335 int _dbus_pipe_close (DBusPipe *pipe,
00336 DBusError *error);
00337 dbus_bool_t _dbus_pipe_is_valid (DBusPipe *pipe);
00338 void _dbus_pipe_invalidate (DBusPipe *pipe);
00339 dbus_bool_t _dbus_pipe_is_stdout_or_stderr (DBusPipe *pipe);
00340
00341
00343 typedef struct DBusDirIter DBusDirIter;
00344
00345 DBusDirIter* _dbus_directory_open (const DBusString *filename,
00346 DBusError *error);
00347 dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter,
00348 DBusString *filename,
00349 DBusError *error);
00350 void _dbus_directory_close (DBusDirIter *iter);
00351
00352 dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir,
00353 DBusError *error);
00354
00355 void _dbus_fd_set_close_on_exec (int fd);
00356
00357 const char* _dbus_get_tmpdir (void);
00358
00362 void _dbus_generate_pseudorandom_bytes_buffer (char *buffer,
00363 int n_bytes);
00364 void _dbus_generate_random_bytes_buffer (char *buffer,
00365 int n_bytes);
00366 dbus_bool_t _dbus_generate_random_bytes (DBusString *str,
00367 int n_bytes);
00368 dbus_bool_t _dbus_generate_random_ascii (DBusString *str,
00369 int n_bytes);
00370
00371 const char* _dbus_error_from_errno (int error_number);
00372
00373 void _dbus_set_errno_to_zero (void);
00374 dbus_bool_t _dbus_get_is_errno_nonzero (void);
00375 dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock (void);
00376 dbus_bool_t _dbus_get_is_errno_enomem (void);
00377 dbus_bool_t _dbus_get_is_errno_eintr (void);
00378 dbus_bool_t _dbus_get_is_errno_epipe (void);
00379 const char* _dbus_strerror_from_errno (void);
00380
00381 void _dbus_disable_sigpipe (void);
00382
00383
00384 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
00385
00386 int _dbus_printf_string_upper_bound (const char *format,
00387 va_list args);
00388
00389
00393 typedef struct
00394 {
00395 unsigned long mode;
00396 unsigned long nlink;
00397 dbus_uid_t uid;
00398 dbus_gid_t gid;
00399 unsigned long size;
00400 unsigned long atime;
00401 unsigned long mtime;
00402 unsigned long ctime;
00403 } DBusStat;
00404
00405 dbus_bool_t _dbus_stat (const DBusString *filename,
00406 DBusStat *statbuf,
00407 DBusError *error);
00408 dbus_bool_t _dbus_full_duplex_pipe (int *fd1,
00409 int *fd2,
00410 dbus_bool_t blocking,
00411 DBusError *error);
00412
00413 void _dbus_print_backtrace (void);
00414
00415 dbus_bool_t _dbus_become_daemon (const DBusString *pidfile,
00416 DBusPipe *print_pid_pipe,
00417 DBusError *error,
00418 dbus_bool_t keep_umask);
00419
00420 dbus_bool_t _dbus_verify_daemon_user (const char *user);
00421
00422 dbus_bool_t _dbus_write_pid_to_file_and_pipe (const DBusString *pidfile,
00423 DBusPipe *print_pid_pipe,
00424 dbus_pid_t pid_to_write,
00425 DBusError *error);
00426
00427 dbus_bool_t _dbus_command_for_pid (unsigned long pid,
00428 DBusString *str,
00429 int max_len,
00430 DBusError *error);
00431
00433 typedef void (* DBusSignalHandler) (int sig);
00434
00435 void _dbus_set_signal_handler (int sig,
00436 DBusSignalHandler handler);
00437
00438 dbus_bool_t _dbus_user_at_console (const char *username,
00439 DBusError *error);
00440
00441 void _dbus_init_system_log (void);
00442 void _dbus_log_info (const char *msg, va_list args);
00443 void _dbus_log_security (const char *msg, va_list args);
00444
00445
00446
00447
00448 #if !defined (DBUS_VA_COPY)
00449 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
00450 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
00451 # elif defined (DBUS_VA_COPY_AS_ARRAY)
00452 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
00453 # else
00454 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
00455 # endif
00456 #endif
00457
00458
00463 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
00464 (((const char*)&(p))[(i)])
00465
00470 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
00471 (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
00472 _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
00473 _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
00474 _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
00475 _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
00476 _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
00477 _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
00478 _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
00479
00480 dbus_bool_t _dbus_get_autolaunch_address (DBusString *address,
00481 DBusError *error);
00482
00483 dbus_bool_t _dbus_lookup_session_address (dbus_bool_t *supported,
00484 DBusString *address,
00485 DBusError *error);
00486
00490 typedef union DBusGUID DBusGUID;
00491
00492 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
00493 dbus_bool_t create_if_not_found,
00494 DBusError *error);
00495
00501 dbus_bool_t _dbus_threads_init_platform_specific (void);
00502
00503 dbus_bool_t _dbus_split_paths_and_append (DBusString *dirs,
00504 const char *suffix,
00505 DBusList **dir_list);
00506
00507 unsigned long _dbus_pid_for_log (void);
00508
00509
00510
00511
00512
00513 dbus_pid_t _dbus_getpid (void);
00514
00515 dbus_bool_t _dbus_change_to_daemon_user (const char *user,
00516 DBusError *error);
00517
00518 void _dbus_flush_caches (void);
00519
00522 DBUS_END_DECLS
00523
00524 #endif