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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
00037
00038 #include <errno.h>
00039
00040 #include <stdarg.h>
00041
00042 DBUS_BEGIN_DECLS
00043
00044
00045
00047 typedef struct DBusString DBusString;
00048
00050 typedef struct DBusList DBusList;
00051
00058
00059
00060
00061
00062
00063
00064
00065
00066
00067 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4)
00068 #define _DBUS_GNUC_PRINTF( format_idx, arg_idx ) \
00069 __attribute__((__format__ (__printf__, format_idx, arg_idx)))
00070 #define _DBUS_GNUC_NORETURN \
00071 __attribute__((__noreturn__))
00072 #else
00073 #define _DBUS_GNUC_PRINTF( format_idx, arg_idx )
00074 #define _DBUS_GNUC_NORETURN
00075 #endif
00076
00084 void _dbus_abort (void) _DBUS_GNUC_NORETURN;
00085
00086 dbus_bool_t _dbus_check_setuid (void);
00087 const char* _dbus_getenv (const char *varname);
00088 dbus_bool_t _dbus_setenv (const char *varname,
00089 const char *value);
00090
00092 typedef unsigned long dbus_pid_t;
00094 typedef unsigned long dbus_uid_t;
00096 typedef unsigned long dbus_gid_t;
00097
00099 #define DBUS_PID_UNSET ((dbus_pid_t) -1)
00100
00101 #define DBUS_UID_UNSET ((dbus_uid_t) -1)
00102
00103 #define DBUS_GID_UNSET ((dbus_gid_t) -1)
00104
00106 #define DBUS_PID_FORMAT "%lu"
00107
00108 #define DBUS_UID_FORMAT "%lu"
00109
00110 #define DBUS_GID_FORMAT "%lu"
00111
00112
00123 dbus_bool_t _dbus_open_tcp_socket (int *fd,
00124 DBusError *error);
00125 dbus_bool_t _dbus_close_socket (int fd,
00126 DBusError *error);
00127 int _dbus_read_socket (int fd,
00128 DBusString *buffer,
00129 int count);
00130 int _dbus_write_socket (int fd,
00131 const DBusString *buffer,
00132 int start,
00133 int len);
00134 int _dbus_write_socket_two (int fd,
00135 const DBusString *buffer1,
00136 int start1,
00137 int len1,
00138 const DBusString *buffer2,
00139 int start2,
00140 int len2);
00141 int _dbus_connect_tcp_socket (const char *host,
00142 dbus_uint32_t port,
00143 DBusError *error);
00144 int _dbus_listen_tcp_socket (const char *host,
00145 dbus_uint32_t port,
00146 DBusError *error);
00147 int _dbus_accept (int listen_fd);
00148
00152 typedef struct
00153 {
00154 dbus_pid_t pid;
00155 dbus_uid_t uid;
00156 dbus_gid_t gid;
00157 } DBusCredentials;
00158
00159
00160
00161
00162 dbus_bool_t _dbus_read_credentials_unix_socket (int client_fd,
00163 DBusCredentials *credentials,
00164 DBusError *error);
00165 dbus_bool_t _dbus_send_credentials_unix_socket (int server_fd,
00166 DBusError *error);
00167
00168
00169 void _dbus_credentials_clear (DBusCredentials *credentials);
00170 void _dbus_credentials_from_current_process (DBusCredentials *credentials);
00171 dbus_bool_t _dbus_credentials_match (const DBusCredentials *expected_credentials,
00172 const DBusCredentials *provided_credentials);
00173
00174
00176 typedef struct DBusUserInfo DBusUserInfo;
00178 typedef struct DBusGroupInfo DBusGroupInfo;
00179
00183 struct DBusUserInfo
00184 {
00185 dbus_uid_t uid;
00186 dbus_gid_t primary_gid;
00187 dbus_gid_t *group_ids;
00188 int n_group_ids;
00189 char *username;
00190 char *homedir;
00191 };
00192
00196 struct DBusGroupInfo
00197 {
00198 dbus_gid_t gid;
00199 char *groupname;
00200 };
00201
00202 dbus_bool_t _dbus_user_info_fill (DBusUserInfo *info,
00203 const DBusString *username,
00204 DBusError *error);
00205 dbus_bool_t _dbus_user_info_fill_uid (DBusUserInfo *info,
00206 dbus_uid_t uid,
00207 DBusError *error);
00208 void _dbus_user_info_free (DBusUserInfo *info);
00209
00210 dbus_bool_t _dbus_group_info_fill (DBusGroupInfo *info,
00211 const DBusString *groupname,
00212 DBusError *error);
00213 dbus_bool_t _dbus_group_info_fill_gid (DBusGroupInfo *info,
00214 dbus_gid_t gid,
00215 DBusError *error);
00216 void _dbus_group_info_free (DBusGroupInfo *info);
00217
00218
00219 unsigned long _dbus_getpid (void);
00220 dbus_uid_t _dbus_getuid (void);
00221 dbus_gid_t _dbus_getgid (void);
00222
00226 typedef struct DBusAtomic DBusAtomic;
00227
00231 struct DBusAtomic
00232 {
00233 volatile dbus_int32_t value;
00234 };
00235
00236 dbus_int32_t _dbus_atomic_inc (DBusAtomic *atomic);
00237 dbus_int32_t _dbus_atomic_dec (DBusAtomic *atomic);
00238
00240 #define _DBUS_POLLIN 0x0001
00241
00242 #define _DBUS_POLLPRI 0x0002
00243
00244 #define _DBUS_POLLOUT 0x0004
00245
00246 #define _DBUS_POLLERR 0x0008
00247
00248 #define _DBUS_POLLHUP 0x0010
00249
00250 #define _DBUS_POLLNVAL 0x0020
00251
00255 typedef struct
00256 {
00257 int fd;
00258 short events;
00259 short revents;
00260 } DBusPollFD;
00261
00262 int _dbus_poll (DBusPollFD *fds,
00263 int n_fds,
00264 int timeout_milliseconds);
00265
00266 void _dbus_sleep_milliseconds (int milliseconds);
00267
00268 void _dbus_get_current_time (long *tv_sec,
00269 long *tv_usec);
00270
00274 dbus_bool_t _dbus_file_exists (const char *file);
00275 dbus_bool_t _dbus_file_get_contents (DBusString *str,
00276 const DBusString *filename,
00277 DBusError *error);
00278 dbus_bool_t _dbus_string_save_to_file (const DBusString *str,
00279 const DBusString *filename,
00280 DBusError *error);
00281
00282 dbus_bool_t _dbus_make_file_world_readable (const DBusString *filename,
00283 DBusError *error);
00284
00285 dbus_bool_t _dbus_create_file_exclusively (const DBusString *filename,
00286 DBusError *error);
00287 dbus_bool_t _dbus_delete_file (const DBusString *filename,
00288 DBusError *error);
00289 dbus_bool_t _dbus_create_directory (const DBusString *filename,
00290 DBusError *error);
00291 dbus_bool_t _dbus_delete_directory (const DBusString *filename,
00292 DBusError *error);
00293
00294 dbus_bool_t _dbus_concat_dir_and_file (DBusString *dir,
00295 const DBusString *next_component);
00296 dbus_bool_t _dbus_string_get_dirname (const DBusString *filename,
00297 DBusString *dirname);
00298 dbus_bool_t _dbus_path_is_absolute (const DBusString *filename);
00299
00300 dbus_bool_t _dbus_get_standard_session_servicedirs (DBusList **dirs);
00301
00303 typedef struct DBusDirIter DBusDirIter;
00304
00305 DBusDirIter* _dbus_directory_open (const DBusString *filename,
00306 DBusError *error);
00307 dbus_bool_t _dbus_directory_get_next_file (DBusDirIter *iter,
00308 DBusString *filename,
00309 DBusError *error);
00310 void _dbus_directory_close (DBusDirIter *iter);
00311
00312 dbus_bool_t _dbus_check_dir_is_private_to_user (DBusString *dir,
00313 DBusError *error);
00314
00315 void _dbus_fd_set_close_on_exec (int fd);
00316
00317 const char* _dbus_get_tmpdir (void);
00318
00322 void _dbus_generate_pseudorandom_bytes_buffer (char *buffer,
00323 int n_bytes);
00324 void _dbus_generate_random_bytes_buffer (char *buffer,
00325 int n_bytes);
00326 dbus_bool_t _dbus_generate_random_bytes (DBusString *str,
00327 int n_bytes);
00328 dbus_bool_t _dbus_generate_random_ascii (DBusString *str,
00329 int n_bytes);
00330
00331 const char* _dbus_error_from_errno (int error_number);
00332
00333 void _dbus_disable_sigpipe (void);
00334
00335
00336 void _dbus_exit (int code) _DBUS_GNUC_NORETURN;
00337
00338 int _dbus_printf_string_upper_bound (const char *format,
00339 va_list args);
00340
00341
00345 typedef struct
00346 {
00347 unsigned long mode;
00348 unsigned long nlink;
00349 dbus_uid_t uid;
00350 dbus_gid_t gid;
00351 unsigned long size;
00352 unsigned long atime;
00353 unsigned long mtime;
00354 unsigned long ctime;
00355 } DBusStat;
00356
00357 dbus_bool_t _dbus_stat (const DBusString *filename,
00358 DBusStat *statbuf,
00359 DBusError *error);
00360 dbus_bool_t _dbus_full_duplex_pipe (int *fd1,
00361 int *fd2,
00362 dbus_bool_t blocking,
00363 DBusError *error);
00364
00365 void _dbus_print_backtrace (void);
00366
00367 dbus_bool_t _dbus_become_daemon (const DBusString *pidfile,
00368 int print_pid_fd,
00369 DBusError *error);
00370 dbus_bool_t _dbus_write_pid_file (const DBusString *filename,
00371 unsigned long pid,
00372 DBusError *error);
00373 dbus_bool_t _dbus_change_identity (unsigned long uid,
00374 unsigned long gid,
00375 DBusError *error);
00376
00378 typedef void (* DBusSignalHandler) (int sig);
00379
00380 void _dbus_set_signal_handler (int sig,
00381 DBusSignalHandler handler);
00382
00383 dbus_bool_t _dbus_user_at_console (const char *username,
00384 DBusError *error);
00385
00386
00387
00388
00389 #if !defined (DBUS_VA_COPY)
00390 # if defined (__GNUC__) && defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
00391 # define DBUS_VA_COPY(ap1, ap2) (*(ap1) = *(ap2))
00392 # elif defined (DBUS_VA_COPY_AS_ARRAY)
00393 # define DBUS_VA_COPY(ap1, ap2) memcpy ((ap1), (ap2), sizeof (va_list))
00394 # else
00395 # define DBUS_VA_COPY(ap1, ap2) ((ap1) = (ap2))
00396 # endif
00397 #endif
00398
00399
00404 #define _DBUS_BYTE_OF_PRIMITIVE(p, i) \
00405 (((const char*)&(p))[(i)])
00406
00411 #define _DBUS_DOUBLES_BITWISE_EQUAL(a, b) \
00412 (_DBUS_BYTE_OF_PRIMITIVE (a, 0) == _DBUS_BYTE_OF_PRIMITIVE (b, 0) && \
00413 _DBUS_BYTE_OF_PRIMITIVE (a, 1) == _DBUS_BYTE_OF_PRIMITIVE (b, 1) && \
00414 _DBUS_BYTE_OF_PRIMITIVE (a, 2) == _DBUS_BYTE_OF_PRIMITIVE (b, 2) && \
00415 _DBUS_BYTE_OF_PRIMITIVE (a, 3) == _DBUS_BYTE_OF_PRIMITIVE (b, 3) && \
00416 _DBUS_BYTE_OF_PRIMITIVE (a, 4) == _DBUS_BYTE_OF_PRIMITIVE (b, 4) && \
00417 _DBUS_BYTE_OF_PRIMITIVE (a, 5) == _DBUS_BYTE_OF_PRIMITIVE (b, 5) && \
00418 _DBUS_BYTE_OF_PRIMITIVE (a, 6) == _DBUS_BYTE_OF_PRIMITIVE (b, 6) && \
00419 _DBUS_BYTE_OF_PRIMITIVE (a, 7) == _DBUS_BYTE_OF_PRIMITIVE (b, 7))
00420
00421 dbus_bool_t _dbus_parse_uid (const DBusString *uid_str,
00422 dbus_uid_t *uid);
00423
00424 dbus_bool_t _dbus_get_autolaunch_address (DBusString *address,
00425 DBusError *error);
00426
00430 typedef union DBusGUID DBusGUID;
00431
00432 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
00433 dbus_bool_t create_if_not_found,
00434 DBusError *error);
00435
00441 dbus_bool_t _dbus_threads_init_platform_specific (void);
00442
00445 DBUS_END_DECLS
00446
00447 #endif