1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation)
4 * Copyright (C) 2002, 2003 Red Hat, Inc.
5 * Copyright (C) 2003 CodeFactory AB
6 * Copyright (C) 2005 Novell, Inc.
7 * Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
8 * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
9 * Copyright (C) 2006-2010 Ralf Habacker <ralf.habacker@freenet.de>
11 * Licensed under the Academic Free License version 2.1
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 #define STRSAFE_NO_DEPRECATE
35 #define _WIN32_WINNT 0x0501
39 #include "dbus-internals.h"
41 #include "dbus-sysdeps.h"
42 #include "dbus-threads.h"
43 #include "dbus-protocol.h"
44 #include "dbus-string.h"
45 #include "dbus-sysdeps.h"
46 #include "dbus-sysdeps-win.h"
47 #include "dbus-protocol.h"
48 #include "dbus-hash.h"
49 #include "dbus-sockets-win.h"
50 #include "dbus-list.h"
51 #include "dbus-nonce.h"
52 #include "dbus-credentials.h"
58 /* Declarations missing in mingw's headers */
59 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
60 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
71 #include <sys/types.h>
74 #ifdef HAVE_WS2TCPIP_H
75 /* getaddrinfo for Windows CE (and Windows). */
80 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
87 #endif // HAVE_WSPIAPI_H
93 typedef int socklen_t;
97 _dbus_win_set_errno (int err)
107 /* Convert GetLastError() to a dbus error. */
109 _dbus_win_error_from_last_error (void)
111 switch (GetLastError())
114 return DBUS_ERROR_FAILED;
116 case ERROR_NO_MORE_FILES:
117 case ERROR_TOO_MANY_OPEN_FILES:
118 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
120 case ERROR_ACCESS_DENIED:
121 case ERROR_CANNOT_MAKE:
122 return DBUS_ERROR_ACCESS_DENIED;
124 case ERROR_NOT_ENOUGH_MEMORY:
125 return DBUS_ERROR_NO_MEMORY;
127 case ERROR_FILE_EXISTS:
128 return DBUS_ERROR_FILE_EXISTS;
130 case ERROR_FILE_NOT_FOUND:
131 case ERROR_PATH_NOT_FOUND:
132 return DBUS_ERROR_FILE_NOT_FOUND;
135 return DBUS_ERROR_FAILED;
140 _dbus_win_error_string (int error_number)
144 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
145 FORMAT_MESSAGE_IGNORE_INSERTS |
146 FORMAT_MESSAGE_FROM_SYSTEM,
147 NULL, error_number, 0,
148 (LPSTR) &msg, 0, NULL);
150 if (msg[strlen (msg) - 1] == '\n')
151 msg[strlen (msg) - 1] = '\0';
152 if (msg[strlen (msg) - 1] == '\r')
153 msg[strlen (msg) - 1] = '\0';
159 _dbus_win_free_error_string (char *string)
170 * Thin wrapper around the read() system call that appends
171 * the data it reads to the DBusString buffer. It appends
172 * up to the given count, and returns the same value
173 * and same errno as read(). The only exception is that
174 * _dbus_read_socket() handles EINTR for you.
175 * _dbus_read_socket() can return ENOMEM, even though
176 * regular UNIX read doesn't.
178 * @param fd the file descriptor to read from
179 * @param buffer the buffer to append data to
180 * @param count the amount of data to read
181 * @returns the number of bytes read or -1
185 _dbus_read_socket (int fd,
193 _dbus_assert (count >= 0);
195 start = _dbus_string_get_length (buffer);
197 if (!_dbus_string_lengthen (buffer, count))
199 _dbus_win_set_errno (ENOMEM);
203 data = _dbus_string_get_data_len (buffer, start, count);
207 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
208 bytes_read = recv (fd, data, count, 0);
210 if (bytes_read == SOCKET_ERROR)
212 DBUS_SOCKET_SET_ERRNO();
213 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
217 _dbus_verbose ("recv: = %d\n", bytes_read);
225 /* put length back (note that this doesn't actually realloc anything) */
226 _dbus_string_set_length (buffer, start);
232 /* put length back (doesn't actually realloc) */
233 _dbus_string_set_length (buffer, start + bytes_read);
237 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
245 * Thin wrapper around the write() system call that writes a part of a
246 * DBusString and handles EINTR for you.
248 * @param fd the file descriptor to write
249 * @param buffer the buffer to write data from
250 * @param start the first byte in the buffer to write
251 * @param len the number of bytes to try to write
252 * @returns the number of bytes written or -1 on error
255 _dbus_write_socket (int fd,
256 const DBusString *buffer,
263 data = _dbus_string_get_const_data_len (buffer, start, len);
267 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
268 bytes_written = send (fd, data, len, 0);
270 if (bytes_written == SOCKET_ERROR)
272 DBUS_SOCKET_SET_ERRNO();
273 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
277 _dbus_verbose ("send: = %d\n", bytes_written);
279 if (bytes_written < 0 && errno == EINTR)
283 if (bytes_written > 0)
284 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
287 return bytes_written;
292 * Closes a file descriptor.
294 * @param fd the file descriptor
295 * @param error error object
296 * @returns #FALSE if error set
299 _dbus_close_socket (int fd,
302 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
305 if (closesocket (fd) == SOCKET_ERROR)
307 DBUS_SOCKET_SET_ERRNO ();
312 dbus_set_error (error, _dbus_error_from_errno (errno),
313 "Could not close socket: socket=%d, , %s",
314 fd, _dbus_strerror_from_errno ());
317 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
323 * Sets the file descriptor to be close
324 * on exec. Should be called for all file
325 * descriptors in D-Bus code.
327 * @param fd the file descriptor
330 _dbus_fd_set_close_on_exec (intptr_t handle)
332 if ( !SetHandleInformation( (HANDLE) handle,
333 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
334 0 /*disable both flags*/ ) )
336 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
341 * Sets a file descriptor to be nonblocking.
343 * @param fd the file descriptor.
344 * @param error address of error location.
345 * @returns #TRUE on success.
348 _dbus_set_fd_nonblocking (int handle,
353 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
355 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
357 DBUS_SOCKET_SET_ERRNO ();
358 dbus_set_error (error, _dbus_error_from_errno (errno),
359 "Failed to set socket %d:%d to nonblocking: %s", handle,
360 _dbus_strerror_from_errno ());
369 * Like _dbus_write() but will use writev() if possible
370 * to write both buffers in sequence. The return value
371 * is the number of bytes written in the first buffer,
372 * plus the number written in the second. If the first
373 * buffer is written successfully and an error occurs
374 * writing the second, the number of bytes in the first
375 * is returned (i.e. the error is ignored), on systems that
376 * don't have writev. Handles EINTR for you.
377 * The second buffer may be #NULL.
379 * @param fd the file descriptor
380 * @param buffer1 first buffer
381 * @param start1 first byte to write in first buffer
382 * @param len1 number of bytes to write from first buffer
383 * @param buffer2 second buffer, or #NULL
384 * @param start2 first byte to write in second buffer
385 * @param len2 number of bytes to write in second buffer
386 * @returns total bytes written from both buffers, or -1 on error
389 _dbus_write_socket_two (int fd,
390 const DBusString *buffer1,
393 const DBusString *buffer2,
403 _dbus_assert (buffer1 != NULL);
404 _dbus_assert (start1 >= 0);
405 _dbus_assert (start2 >= 0);
406 _dbus_assert (len1 >= 0);
407 _dbus_assert (len2 >= 0);
410 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
413 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
421 vectors[0].buf = (char*) data1;
422 vectors[0].len = len1;
423 vectors[1].buf = (char*) data2;
424 vectors[1].len = len2;
428 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
437 if (rc == SOCKET_ERROR)
439 DBUS_SOCKET_SET_ERRNO ();
440 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
444 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
446 if (bytes_written < 0 && errno == EINTR)
449 return bytes_written;
453 _dbus_socket_is_invalid (int fd)
455 return fd == INVALID_SOCKET ? TRUE : FALSE;
461 * Opens the client side of a Windows named pipe. The connection D-BUS
462 * file descriptor index is returned. It is set up as nonblocking.
464 * @param path the path to named pipe socket
465 * @param error return location for error code
466 * @returns connection D-BUS file descriptor or -1 on error
469 _dbus_connect_named_pipe (const char *path,
472 _dbus_assert_not_reached ("not implemented");
480 _dbus_win_startup_winsock (void)
482 /* Straight from MSDN, deuglified */
484 static dbus_bool_t beenhere = FALSE;
486 WORD wVersionRequested;
493 wVersionRequested = MAKEWORD (2, 0);
495 err = WSAStartup (wVersionRequested, &wsaData);
498 _dbus_assert_not_reached ("Could not initialize WinSock");
502 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
503 * supports versions greater than 2.0 in addition to 2.0, it will
504 * still return 2.0 in wVersion since that is the version we
507 if (LOBYTE (wsaData.wVersion) != 2 ||
508 HIBYTE (wsaData.wVersion) != 0)
510 _dbus_assert_not_reached ("No usable WinSock found");
525 /************************************************************************
529 ************************************************************************/
532 * Measure the message length without terminating nul
534 int _dbus_printf_string_upper_bound (const char *format,
537 /* MSVCRT's vsnprintf semantics are a bit different */
542 bufsize = sizeof (buf);
543 len = _vsnprintf (buf, bufsize - 1, format, args);
545 while (len == -1) /* try again */
551 p = malloc (bufsize);
556 len = _vsnprintf (p, bufsize - 1, format, args);
565 * Returns the UTF-16 form of a UTF-8 string. The result should be
566 * freed with dbus_free() when no longer needed.
568 * @param str the UTF-8 string
569 * @param error return location for error code
572 _dbus_win_utf8_to_utf16 (const char *str,
579 _dbus_string_init_const (&s, str);
581 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
583 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
587 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
591 _dbus_win_set_error_from_win_error (error, GetLastError ());
595 retval = dbus_new (wchar_t, n);
599 _DBUS_SET_OOM (error);
603 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
606 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
614 * Returns the UTF-8 form of a UTF-16 string. The result should be
615 * freed with dbus_free() when no longer needed.
617 * @param str the UTF-16 string
618 * @param error return location for error code
621 _dbus_win_utf16_to_utf8 (const wchar_t *str,
627 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
631 _dbus_win_set_error_from_win_error (error, GetLastError ());
635 retval = dbus_malloc (n);
639 _DBUS_SET_OOM (error);
643 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
646 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
658 /************************************************************************
661 ************************************************************************/
664 _dbus_win_account_to_sid (const wchar_t *waccount,
668 dbus_bool_t retval = FALSE;
669 DWORD sid_length, wdomain_length;
677 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
678 NULL, &wdomain_length, &use) &&
679 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
681 _dbus_win_set_error_from_win_error (error, GetLastError ());
685 *ppsid = dbus_malloc (sid_length);
688 _DBUS_SET_OOM (error);
692 wdomain = dbus_new (wchar_t, wdomain_length);
695 _DBUS_SET_OOM (error);
699 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
700 wdomain, &wdomain_length, &use))
702 _dbus_win_set_error_from_win_error (error, GetLastError ());
706 if (!IsValidSid ((PSID) *ppsid))
708 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
726 /** @} end of sysdeps-win */
730 * The only reason this is separate from _dbus_getpid() is to allow it
731 * on Windows for logging but not for other purposes.
733 * @returns process ID to put in log messages
736 _dbus_pid_for_log (void)
738 return _dbus_getpid ();
744 * @param points to sid buffer, need to be freed with LocalFree()
745 * @returns process sid
748 _dbus_getsid(char **sid)
750 HANDLE process_token = INVALID_HANDLE_VALUE;
751 TOKEN_USER *token_user = NULL;
756 if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
758 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
761 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
762 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
763 || (token_user = alloca (n)) == NULL
764 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
766 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
769 psid = token_user->User.Sid;
770 if (!IsValidSid (psid))
772 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
775 if (!ConvertSidToStringSidA (psid, sid))
777 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
784 if (process_token != INVALID_HANDLE_VALUE)
785 CloseHandle (process_token);
787 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
792 /************************************************************************
796 ************************************************************************/
799 * Creates a full-duplex pipe (as in socketpair()).
800 * Sets both ends of the pipe nonblocking.
802 * @todo libdbus only uses this for the debug-pipe server, so in
803 * principle it could be in dbus-sysdeps-util.c, except that
804 * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
805 * debug-pipe server is used.
807 * @param fd1 return location for one end
808 * @param fd2 return location for the other end
809 * @param blocking #TRUE if pipe should be blocking
810 * @param error error return
811 * @returns #FALSE on failure (if error is set)
814 _dbus_full_duplex_pipe (int *fd1,
816 dbus_bool_t blocking,
819 SOCKET temp, socket1 = -1, socket2 = -1;
820 struct sockaddr_in saddr;
824 _dbus_win_startup_winsock ();
826 temp = socket (AF_INET, SOCK_STREAM, 0);
827 if (temp == INVALID_SOCKET)
829 DBUS_SOCKET_SET_ERRNO ();
834 saddr.sin_family = AF_INET;
836 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
838 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
840 DBUS_SOCKET_SET_ERRNO ();
844 if (listen (temp, 1) == SOCKET_ERROR)
846 DBUS_SOCKET_SET_ERRNO ();
850 len = sizeof (saddr);
851 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
853 DBUS_SOCKET_SET_ERRNO ();
857 socket1 = socket (AF_INET, SOCK_STREAM, 0);
858 if (socket1 == INVALID_SOCKET)
860 DBUS_SOCKET_SET_ERRNO ();
864 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
866 DBUS_SOCKET_SET_ERRNO ();
870 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
871 if (socket2 == INVALID_SOCKET)
873 DBUS_SOCKET_SET_ERRNO ();
880 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
882 DBUS_SOCKET_SET_ERRNO ();
887 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
889 DBUS_SOCKET_SET_ERRNO ();
897 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
898 *fd1, socket1, *fd2, socket2);
905 closesocket (socket2);
907 closesocket (socket1);
911 dbus_set_error (error, _dbus_error_from_errno (errno),
912 "Could not setup socket pair: %s",
913 _dbus_strerror_from_errno ());
919 * Wrapper for poll().
921 * @param fds the file descriptors to poll
922 * @param n_fds number of descriptors in the array
923 * @param timeout_milliseconds timeout or -1 for infinite
924 * @returns numbers of fds with revents, or <0 on error
927 _dbus_poll (DBusPollFD *fds,
929 int timeout_milliseconds)
931 #define USE_CHRIS_IMPL 0
935 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
936 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
944 #define DBUS_STACK_WSAEVENTS 256
945 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
946 WSAEVENT *pEvents = NULL;
947 if (n_fds > DBUS_STACK_WSAEVENTS)
948 pEvents = calloc(sizeof(WSAEVENT), n_fds);
950 pEvents = eventsOnStack;
953 #ifdef DBUS_ENABLE_VERBOSE_MODE
955 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
956 for (i = 0; i < n_fds; i++)
958 DBusPollFD *fdp = &fds[i];
961 if (fdp->events & _DBUS_POLLIN)
962 msgp += sprintf (msgp, "R:%d ", fdp->fd);
964 if (fdp->events & _DBUS_POLLOUT)
965 msgp += sprintf (msgp, "W:%d ", fdp->fd);
967 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
969 // FIXME: more robust code for long msg
970 // create on heap when msg[] becomes too small
971 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
973 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
977 msgp += sprintf (msgp, "\n");
978 _dbus_verbose ("%s",msg);
980 for (i = 0; i < n_fds; i++)
982 DBusPollFD *fdp = &fds[i];
984 long lNetworkEvents = FD_OOB;
986 ev = WSACreateEvent();
988 if (fdp->events & _DBUS_POLLIN)
989 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
991 if (fdp->events & _DBUS_POLLOUT)
992 lNetworkEvents |= FD_WRITE | FD_CONNECT;
994 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1000 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1002 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1004 DBUS_SOCKET_SET_ERRNO ();
1005 if (errno != WSAEWOULDBLOCK)
1006 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1009 else if (ready == WSA_WAIT_TIMEOUT)
1011 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1014 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1017 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1019 for (i = 0; i < n_fds; i++)
1021 DBusPollFD *fdp = &fds[i];
1022 WSANETWORKEVENTS ne;
1026 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1028 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1029 fdp->revents |= _DBUS_POLLIN;
1031 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1032 fdp->revents |= _DBUS_POLLOUT;
1034 if (ne.lNetworkEvents & (FD_OOB))
1035 fdp->revents |= _DBUS_POLLERR;
1037 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1038 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1040 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1041 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1043 if (ne.lNetworkEvents & (FD_OOB))
1044 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1046 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1048 if(ne.lNetworkEvents)
1051 WSAEventSelect(fdp->fd, pEvents[i], 0);
1054 msgp += sprintf (msgp, "\n");
1055 _dbus_verbose ("%s",msg);
1059 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1063 for(i = 0; i < n_fds; i++)
1065 WSACloseEvent(pEvents[i]);
1068 if (n_fds > DBUS_STACK_WSAEVENTS)
1073 #else /* USE_CHRIS_IMPL */
1075 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1076 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1079 fd_set read_set, write_set, err_set;
1085 FD_ZERO (&read_set);
1086 FD_ZERO (&write_set);
1090 #ifdef DBUS_ENABLE_VERBOSE_MODE
1092 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1093 for (i = 0; i < n_fds; i++)
1095 DBusPollFD *fdp = &fds[i];
1098 if (fdp->events & _DBUS_POLLIN)
1099 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1101 if (fdp->events & _DBUS_POLLOUT)
1102 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1104 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1106 // FIXME: more robust code for long msg
1107 // create on heap when msg[] becomes too small
1108 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1110 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1114 msgp += sprintf (msgp, "\n");
1115 _dbus_verbose ("%s",msg);
1117 for (i = 0; i < n_fds; i++)
1119 DBusPollFD *fdp = &fds[i];
1121 if (fdp->events & _DBUS_POLLIN)
1122 FD_SET (fdp->fd, &read_set);
1124 if (fdp->events & _DBUS_POLLOUT)
1125 FD_SET (fdp->fd, &write_set);
1127 FD_SET (fdp->fd, &err_set);
1129 max_fd = MAX (max_fd, fdp->fd);
1132 // Avoid random lockups with send(), for lack of a better solution so far
1133 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1134 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1136 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1138 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1140 DBUS_SOCKET_SET_ERRNO ();
1141 if (errno != WSAEWOULDBLOCK)
1142 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1144 else if (ready == 0)
1145 _dbus_verbose ("select: = 0\n");
1149 #ifdef DBUS_ENABLE_VERBOSE_MODE
1151 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1153 for (i = 0; i < n_fds; i++)
1155 DBusPollFD *fdp = &fds[i];
1157 if (FD_ISSET (fdp->fd, &read_set))
1158 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1160 if (FD_ISSET (fdp->fd, &write_set))
1161 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1163 if (FD_ISSET (fdp->fd, &err_set))
1164 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1166 msgp += sprintf (msgp, "\n");
1167 _dbus_verbose ("%s",msg);
1170 for (i = 0; i < n_fds; i++)
1172 DBusPollFD *fdp = &fds[i];
1176 if (FD_ISSET (fdp->fd, &read_set))
1177 fdp->revents |= _DBUS_POLLIN;
1179 if (FD_ISSET (fdp->fd, &write_set))
1180 fdp->revents |= _DBUS_POLLOUT;
1182 if (FD_ISSET (fdp->fd, &err_set))
1183 fdp->revents |= _DBUS_POLLERR;
1187 #endif /* USE_CHRIS_IMPL */
1193 /******************************************************************************
1195 Original CVS version of dbus-sysdeps.c
1197 ******************************************************************************/
1198 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1199 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1201 * Copyright (C) 2002, 2003 Red Hat, Inc.
1202 * Copyright (C) 2003 CodeFactory AB
1203 * Copyright (C) 2005 Novell, Inc.
1205 * Licensed under the Academic Free License version 2.1
1207 * This program is free software; you can redistribute it and/or modify
1208 * it under the terms of the GNU General Public License as published by
1209 * the Free Software Foundation; either version 2 of the License, or
1210 * (at your option) any later version.
1212 * This program is distributed in the hope that it will be useful,
1213 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1214 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1215 * GNU General Public License for more details.
1217 * You should have received a copy of the GNU General Public License
1218 * along with this program; if not, write to the Free Software
1219 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1225 * Exit the process, returning the given value.
1227 * @param code the exit code
1230 _dbus_exit (int code)
1236 * Creates a socket and connects to a socket at the given host
1237 * and port. The connection fd is returned, and is set up as
1240 * @param host the host name to connect to
1241 * @param port the port to connect to
1242 * @param family the address family to listen on, NULL for all
1243 * @param error return location for error code
1244 * @returns connection file descriptor or -1 on error
1247 _dbus_connect_tcp_socket (const char *host,
1252 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1256 _dbus_connect_tcp_socket_with_nonce (const char *host,
1259 const char *noncefile,
1263 struct addrinfo hints;
1264 struct addrinfo *ai, *tmp;
1266 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1268 _dbus_win_startup_winsock ();
1273 hints.ai_family = AF_UNSPEC;
1274 else if (!strcmp(family, "ipv4"))
1275 hints.ai_family = AF_INET;
1276 else if (!strcmp(family, "ipv6"))
1277 hints.ai_family = AF_INET6;
1280 dbus_set_error (error,
1281 DBUS_ERROR_INVALID_ARGS,
1282 "Unknown address family %s", family);
1285 hints.ai_protocol = IPPROTO_TCP;
1286 hints.ai_socktype = SOCK_STREAM;
1287 #ifdef AI_ADDRCONFIG
1288 hints.ai_flags = AI_ADDRCONFIG;
1293 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1295 dbus_set_error (error,
1296 _dbus_error_from_errno (res),
1297 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1298 host, port, _dbus_strerror(res), res);
1305 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1307 DBUS_SOCKET_SET_ERRNO ();
1308 dbus_set_error (error,
1309 _dbus_error_from_errno (errno),
1310 "Failed to open socket: %s",
1311 _dbus_strerror_from_errno ());
1315 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1317 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1319 DBUS_SOCKET_SET_ERRNO ();
1332 dbus_set_error (error,
1333 _dbus_error_from_errno (errno),
1334 "Failed to connect to socket \"%s:%s\" %s",
1335 host, port, _dbus_strerror_from_errno ());
1339 if (noncefile != NULL)
1341 DBusString noncefileStr;
1343 if (!_dbus_string_init (&noncefileStr) ||
1344 !_dbus_string_append(&noncefileStr, noncefile))
1347 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1351 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1353 _dbus_string_free (&noncefileStr);
1362 _dbus_fd_set_close_on_exec (fd);
1364 if (!_dbus_set_fd_nonblocking (fd, error))
1374 * Creates a socket and binds it to the given path, then listens on
1375 * the socket. The socket is set to be nonblocking. In case of port=0
1376 * a random free port is used and returned in the port parameter.
1377 * If inaddr_any is specified, the hostname is ignored.
1379 * @param host the host name to listen on
1380 * @param port the port to listen on, if zero a free port will be used
1381 * @param family the address family to listen on, NULL for all
1382 * @param retport string to return the actual port listened on
1383 * @param fds_p location to store returned file descriptors
1384 * @param error return location for errors
1385 * @returns the number of listening file descriptors or -1 on error
1389 _dbus_listen_tcp_socket (const char *host,
1392 DBusString *retport,
1396 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1397 struct addrinfo hints;
1398 struct addrinfo *ai, *tmp;
1400 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1401 //That's required for family == IPv6(which is the default on Vista if family is not given)
1402 //So we use our own union instead of sockaddr_gen:
1405 struct sockaddr Address;
1406 struct sockaddr_in AddressIn;
1407 struct sockaddr_in6 AddressIn6;
1411 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1413 _dbus_win_startup_winsock ();
1418 hints.ai_family = AF_UNSPEC;
1419 else if (!strcmp(family, "ipv4"))
1420 hints.ai_family = AF_INET;
1421 else if (!strcmp(family, "ipv6"))
1422 hints.ai_family = AF_INET6;
1425 dbus_set_error (error,
1426 DBUS_ERROR_INVALID_ARGS,
1427 "Unknown address family %s", family);
1431 hints.ai_protocol = IPPROTO_TCP;
1432 hints.ai_socktype = SOCK_STREAM;
1433 #ifdef AI_ADDRCONFIG
1434 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1436 hints.ai_flags = AI_PASSIVE;
1439 redo_lookup_with_port:
1440 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1442 dbus_set_error (error,
1443 _dbus_error_from_errno (res),
1444 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1445 host ? host : "*", port, _dbus_strerror(res), res);
1452 int fd = -1, *newlisten_fd;
1453 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1455 DBUS_SOCKET_SET_ERRNO ();
1456 dbus_set_error (error,
1457 _dbus_error_from_errno (errno),
1458 "Failed to open socket: %s",
1459 _dbus_strerror_from_errno ());
1462 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1464 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1466 DBUS_SOCKET_SET_ERRNO ();
1467 dbus_set_error (error, _dbus_error_from_errno (errno),
1468 "Failed to bind socket \"%s:%s\": %s",
1469 host ? host : "*", port, _dbus_strerror_from_errno ());
1474 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1476 DBUS_SOCKET_SET_ERRNO ();
1477 dbus_set_error (error, _dbus_error_from_errno (errno),
1478 "Failed to listen on socket \"%s:%s\": %s",
1479 host ? host : "*", port, _dbus_strerror_from_errno ());
1484 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1488 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1489 "Failed to allocate file handle array");
1492 listen_fd = newlisten_fd;
1493 listen_fd[nlisten_fd] = fd;
1496 if (!_dbus_string_get_length(retport))
1498 /* If the user didn't specify a port, or used 0, then
1499 the kernel chooses a port. After the first address
1500 is bound to, we need to force all remaining addresses
1501 to use the same port */
1502 if (!port || !strcmp(port, "0"))
1504 mysockaddr_gen addr;
1505 socklen_t addrlen = sizeof(addr);
1508 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1510 DBUS_SOCKET_SET_ERRNO ();
1511 dbus_set_error (error, _dbus_error_from_errno (errno),
1512 "Failed to resolve port \"%s:%s\": %s",
1513 host ? host : "*", port, _dbus_strerror_from_errno());
1516 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1517 if (!_dbus_string_append(retport, portbuf))
1519 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1523 /* Release current address list & redo lookup */
1524 port = _dbus_string_get_const_data(retport);
1526 goto redo_lookup_with_port;
1530 if (!_dbus_string_append(retport, port))
1532 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1545 _dbus_win_set_errno (WSAEADDRINUSE);
1546 dbus_set_error (error, _dbus_error_from_errno (errno),
1547 "Failed to bind socket \"%s:%s\": %s",
1548 host ? host : "*", port, _dbus_strerror_from_errno ());
1552 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1554 for (i = 0 ; i < nlisten_fd ; i++)
1556 _dbus_fd_set_close_on_exec (listen_fd[i]);
1557 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1570 for (i = 0 ; i < nlisten_fd ; i++)
1571 closesocket (listen_fd[i]);
1572 dbus_free(listen_fd);
1578 * Accepts a connection on a listening socket.
1579 * Handles EINTR for you.
1581 * @param listen_fd the listen file descriptor
1582 * @returns the connection fd of the client, or -1 on error
1585 _dbus_accept (int listen_fd)
1590 client_fd = accept (listen_fd, NULL, NULL);
1592 if (DBUS_SOCKET_IS_INVALID (client_fd))
1594 DBUS_SOCKET_SET_ERRNO ();
1599 _dbus_verbose ("client fd %d accepted\n", client_fd);
1608 _dbus_send_credentials_socket (int handle,
1611 /* FIXME: for the session bus credentials shouldn't matter (?), but
1612 * for the system bus they are presumably essential. A rough outline
1613 * of a way to implement the credential transfer would be this:
1615 * client waits to *read* a byte.
1617 * server creates a named pipe with a random name, sends a byte
1618 * contining its length, and its name.
1620 * client reads the name, connects to it (using Win32 API).
1622 * server waits for connection to the named pipe, then calls
1623 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1624 * calls RevertToSelf(), closes its handles to the named pipe, and
1625 * is done. (Maybe there is some other way to get the SID of a named
1626 * pipe client without having to use impersonation?)
1628 * client closes its handles and is done.
1630 * Ralf: Why not sending credentials over the given this connection ?
1631 * Using named pipes makes it impossible to be connected from a unix client.
1637 _dbus_string_init_const_len (&buf, "\0", 1);
1639 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1641 if (bytes_written < 0 && errno == EINTR)
1644 if (bytes_written < 0)
1646 dbus_set_error (error, _dbus_error_from_errno (errno),
1647 "Failed to write credentials byte: %s",
1648 _dbus_strerror_from_errno ());
1651 else if (bytes_written == 0)
1653 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1654 "wrote zero bytes writing credentials byte");
1659 _dbus_assert (bytes_written == 1);
1660 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1667 * Reads a single byte which must be nul (an error occurs otherwise),
1668 * and reads unix credentials if available. Fills in pid/uid/gid with
1669 * -1 if no credentials are available. Return value indicates whether
1670 * a byte was read, not whether we got valid credentials. On some
1671 * systems, such as Linux, reading/writing the byte isn't actually
1672 * required, but we do it anyway just to avoid multiple codepaths.
1674 * Fails if no byte is available, so you must select() first.
1676 * The point of the byte is that on some systems we have to
1677 * use sendmsg()/recvmsg() to transmit credentials.
1679 * @param client_fd the client file descriptor
1680 * @param credentials struct to fill with credentials of client
1681 * @param error location to store error code
1682 * @returns #TRUE on success
1685 _dbus_read_credentials_socket (int handle,
1686 DBusCredentials *credentials,
1692 // could fail due too OOM
1693 if (_dbus_string_init(&buf))
1695 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1698 _dbus_verbose("got one zero byte from server");
1700 _dbus_string_free(&buf);
1703 _dbus_credentials_add_from_current_process (credentials);
1704 _dbus_verbose("FIXME: get faked credentials from current process");
1710 * Checks to make sure the given directory is
1711 * private to the user
1713 * @param dir the name of the directory
1714 * @param error error return
1715 * @returns #FALSE on failure
1718 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1721 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1727 * Appends the given filename to the given directory.
1729 * @todo it might be cute to collapse multiple '/' such as "foo//"
1732 * @param dir the directory name
1733 * @param next_component the filename
1734 * @returns #TRUE on success
1737 _dbus_concat_dir_and_file (DBusString *dir,
1738 const DBusString *next_component)
1740 dbus_bool_t dir_ends_in_slash;
1741 dbus_bool_t file_starts_with_slash;
1743 if (_dbus_string_get_length (dir) == 0 ||
1744 _dbus_string_get_length (next_component) == 0)
1748 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1749 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1751 file_starts_with_slash =
1752 ('/' == _dbus_string_get_byte (next_component, 0) ||
1753 '\\' == _dbus_string_get_byte (next_component, 0));
1755 if (dir_ends_in_slash && file_starts_with_slash)
1757 _dbus_string_shorten (dir, 1);
1759 else if (!(dir_ends_in_slash || file_starts_with_slash))
1761 if (!_dbus_string_append_byte (dir, '\\'))
1765 return _dbus_string_copy (next_component, 0, dir,
1766 _dbus_string_get_length (dir));
1769 /*---------------- DBusCredentials ----------------------------------*/
1772 * Adds the credentials corresponding to the given username.
1774 * @param credentials credentials to fill in
1775 * @param username the username
1776 * @returns #TRUE if the username existed and we got some credentials
1779 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1780 const DBusString *username)
1782 return _dbus_credentials_add_windows_sid (credentials,
1783 _dbus_string_get_const_data(username));
1787 * Adds the credentials of the current process to the
1788 * passed-in credentials object.
1790 * @param credentials credentials to add to
1791 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1795 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1797 dbus_bool_t retval = FALSE;
1800 if (!_dbus_getsid(&sid))
1803 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1806 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1821 * Append to the string the identity we would like to have when we
1822 * authenticate, on UNIX this is the current process UID and on
1823 * Windows something else, probably a Windows SID string. No escaping
1824 * is required, that is done in dbus-auth.c. The username here
1825 * need not be anything human-readable, it can be the machine-readable
1826 * form i.e. a user id.
1828 * @param str the string to append to
1829 * @returns #FALSE on no memory
1830 * @todo to which class belongs this
1833 _dbus_append_user_from_current_process (DBusString *str)
1835 dbus_bool_t retval = FALSE;
1838 if (!_dbus_getsid(&sid))
1841 retval = _dbus_string_append (str,sid);
1848 * Gets our process ID
1849 * @returns process ID
1854 return GetCurrentProcessId ();
1857 /** nanoseconds in a second */
1858 #define NANOSECONDS_PER_SECOND 1000000000
1859 /** microseconds in a second */
1860 #define MICROSECONDS_PER_SECOND 1000000
1861 /** milliseconds in a second */
1862 #define MILLISECONDS_PER_SECOND 1000
1863 /** nanoseconds in a millisecond */
1864 #define NANOSECONDS_PER_MILLISECOND 1000000
1865 /** microseconds in a millisecond */
1866 #define MICROSECONDS_PER_MILLISECOND 1000
1869 * Sleeps the given number of milliseconds.
1870 * @param milliseconds number of milliseconds
1873 _dbus_sleep_milliseconds (int milliseconds)
1875 Sleep (milliseconds);
1880 * Get current time, as in gettimeofday().
1882 * @param tv_sec return location for number of seconds
1883 * @param tv_usec return location for number of microseconds
1886 _dbus_get_current_time (long *tv_sec,
1890 dbus_uint64_t time64;
1892 GetSystemTimeAsFileTime (&ft);
1894 memcpy (&time64, &ft, sizeof (time64));
1896 /* Convert from 100s of nanoseconds since 1601-01-01
1897 * to Unix epoch. Yes, this is Y2038 unsafe.
1899 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1903 *tv_sec = time64 / 1000000;
1906 *tv_usec = time64 % 1000000;
1911 * signal (SIGPIPE, SIG_IGN);
1914 _dbus_disable_sigpipe (void)
1919 * Creates a directory; succeeds if the directory
1920 * is created or already existed.
1922 * @param filename directory filename
1923 * @param error initialized error object
1924 * @returns #TRUE on success
1927 _dbus_create_directory (const DBusString *filename,
1930 const char *filename_c;
1932 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1934 filename_c = _dbus_string_get_const_data (filename);
1936 if (!CreateDirectoryA (filename_c, NULL))
1938 if (GetLastError () == ERROR_ALREADY_EXISTS)
1941 dbus_set_error (error, DBUS_ERROR_FAILED,
1942 "Failed to create directory %s: %s\n",
1943 filename_c, _dbus_strerror_from_errno ());
1952 * Generates the given number of random bytes,
1953 * using the best mechanism we can come up with.
1955 * @param str the string
1956 * @param n_bytes the number of random bytes to append to string
1957 * @returns #TRUE on success, #FALSE if no memory
1960 _dbus_generate_random_bytes (DBusString *str,
1967 old_len = _dbus_string_get_length (str);
1969 if (!_dbus_string_lengthen (str, n_bytes))
1972 p = _dbus_string_get_data_len (str, old_len, n_bytes);
1974 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1977 if (!CryptGenRandom (hprov, n_bytes, p))
1979 CryptReleaseContext (hprov, 0);
1983 CryptReleaseContext (hprov, 0);
1989 * Gets the temporary files directory by inspecting the environment variables
1990 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
1992 * @returns location of temp directory
1995 _dbus_get_tmpdir(void)
1997 static const char* tmpdir = NULL;
1998 static char buf[1000];
2004 if (!GetTempPathA (sizeof (buf), buf))
2006 _dbus_warn ("GetTempPath failed\n");
2010 /* Drop terminating backslash or slash */
2011 last_slash = _mbsrchr (buf, '\\');
2012 if (last_slash > buf && last_slash[1] == '\0')
2013 last_slash[0] = '\0';
2014 last_slash = _mbsrchr (buf, '/');
2015 if (last_slash > buf && last_slash[1] == '\0')
2016 last_slash[0] = '\0';
2021 _dbus_assert(tmpdir != NULL);
2028 * Deletes the given file.
2030 * @param filename the filename
2031 * @param error error location
2033 * @returns #TRUE if unlink() succeeded
2036 _dbus_delete_file (const DBusString *filename,
2039 const char *filename_c;
2041 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2043 filename_c = _dbus_string_get_const_data (filename);
2045 if (DeleteFileA (filename_c) == 0)
2047 dbus_set_error (error, DBUS_ERROR_FAILED,
2048 "Failed to delete file %s: %s\n",
2049 filename_c, _dbus_strerror_from_errno ());
2057 * replaces the term DBUS_PREFIX in configure_time_path by the
2058 * current dbus installation directory. On unix this function is a noop
2060 * @param configure_time_path
2064 _dbus_replace_install_prefix (const char *configure_time_path)
2067 return configure_time_path;
2069 static char retval[1000];
2070 static char runtime_prefix[1000];
2074 if (!configure_time_path)
2077 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2078 strncmp (configure_time_path, DBUS_PREFIX "/",
2079 strlen (DBUS_PREFIX) + 1))) {
2080 strcat (retval, configure_time_path);
2084 strcpy (retval, runtime_prefix);
2085 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2087 /* Somehow, in some situations, backslashes get collapsed in the string.
2088 * Since windows C library accepts both forward and backslashes as
2089 * path separators, convert all backslashes to forward slashes.
2092 for(i = 0; retval[i] != '\0'; i++) {
2093 if(retval[i] == '\\')
2100 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
2102 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2112 * Backtrace Generator
2114 * Copyright 2004 Eric Poech
2115 * Copyright 2004 Robert Shearman
2117 * This library is free software; you can redistribute it and/or
2118 * modify it under the terms of the GNU Lesser General Public
2119 * License as published by the Free Software Foundation; either
2120 * version 2.1 of the License, or (at your option) any later version.
2122 * This library is distributed in the hope that it will be useful,
2123 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2124 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2125 * Lesser General Public License for more details.
2127 * You should have received a copy of the GNU Lesser General Public
2128 * License along with this library; if not, write to the Free Software
2129 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2133 #include <imagehlp.h>
2136 #define DPRINTF _dbus_warn
2144 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2146 //MAKE_FUNCPTR(StackWalk);
2147 //MAKE_FUNCPTR(SymGetModuleBase);
2148 //MAKE_FUNCPTR(SymFunctionTableAccess);
2149 //MAKE_FUNCPTR(SymInitialize);
2150 //MAKE_FUNCPTR(SymGetSymFromAddr);
2151 //MAKE_FUNCPTR(SymGetModuleInfo);
2152 static BOOL (WINAPI *pStackWalk)(
2156 LPSTACKFRAME StackFrame,
2157 PVOID ContextRecord,
2158 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2159 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2160 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2161 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2164 static DWORD64 (WINAPI *pSymGetModuleBase)(
2168 static PVOID (WINAPI *pSymFunctionTableAccess)(
2173 static DWORD (WINAPI *pSymGetModuleBase)(
2177 static PVOID (WINAPI *pSymFunctionTableAccess)(
2182 static BOOL (WINAPI *pSymInitialize)(
2184 PSTR UserSearchPath,
2187 static BOOL (WINAPI *pSymGetSymFromAddr)(
2190 PDWORD Displacement,
2191 PIMAGEHLP_SYMBOL Symbol
2193 static BOOL (WINAPI *pSymGetModuleInfo)(
2196 PIMAGEHLP_MODULE ModuleInfo
2198 static DWORD (WINAPI *pSymSetOptions)(
2203 static BOOL init_backtrace()
2205 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2207 #define GETFUNC(x) \
2208 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2216 // GETFUNC(StackWalk);
2217 // GETFUNC(SymGetModuleBase);
2218 // GETFUNC(SymFunctionTableAccess);
2219 // GETFUNC(SymInitialize);
2220 // GETFUNC(SymGetSymFromAddr);
2221 // GETFUNC(SymGetModuleInfo);
2225 pStackWalk = (BOOL (WINAPI *)(
2229 LPSTACKFRAME StackFrame,
2230 PVOID ContextRecord,
2231 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2232 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2233 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2234 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2235 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2237 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2240 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2241 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2244 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2246 pSymGetModuleBase=(DWORD (WINAPI *)(
2249 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2250 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2253 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2255 pSymInitialize = (BOOL (WINAPI *)(
2257 PSTR UserSearchPath,
2259 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2260 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2263 PDWORD Displacement,
2264 PIMAGEHLP_SYMBOL Symbol
2265 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2266 pSymGetModuleInfo = (BOOL (WINAPI *)(
2269 PIMAGEHLP_MODULE ModuleInfo
2270 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2271 pSymSetOptions = (DWORD (WINAPI *)(
2273 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2276 pSymSetOptions(SYMOPT_UNDNAME);
2278 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2283 static void dump_backtrace_for_thread(HANDLE hThread)
2290 if (!init_backtrace())
2293 /* can't use this function for current thread as GetThreadContext
2294 * doesn't support getting context from current thread */
2295 if (hThread == GetCurrentThread())
2298 DPRINTF("Backtrace:\n");
2300 _DBUS_ZERO(context);
2301 context.ContextFlags = CONTEXT_FULL;
2303 SuspendThread(hThread);
2305 if (!GetThreadContext(hThread, &context))
2307 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2308 ResumeThread(hThread);
2315 sf.AddrFrame.Offset = context.Ebp;
2316 sf.AddrFrame.Mode = AddrModeFlat;
2317 sf.AddrPC.Offset = context.Eip;
2318 sf.AddrPC.Mode = AddrModeFlat;
2319 dwImageType = IMAGE_FILE_MACHINE_I386;
2321 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2322 sf.AddrPC.Offset = context.Rip;
2323 sf.AddrPC.Mode = AddrModeFlat;
2324 sf.AddrFrame.Offset = context.Rsp;
2325 sf.AddrFrame.Mode = AddrModeFlat;
2326 sf.AddrStack.Offset = context.Rsp;
2327 sf.AddrStack.Mode = AddrModeFlat;
2329 dwImageType = IMAGE_FILE_MACHINE_IA64;
2330 sf.AddrPC.Offset = context.StIIP;
2331 sf.AddrPC.Mode = AddrModeFlat;
2332 sf.AddrFrame.Offset = context.IntSp;
2333 sf.AddrFrame.Mode = AddrModeFlat;
2334 sf.AddrBStore.Offset= context.RsBSP;
2335 sf.AddrBStore.Mode = AddrModeFlat;
2336 sf.AddrStack.Offset = context.IntSp;
2337 sf.AddrStack.Mode = AddrModeFlat;
2339 # error You need to fill in the STACKFRAME structure for your architecture
2342 while (pStackWalk(dwImageType, GetCurrentProcess(),
2343 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2344 pSymGetModuleBase, NULL))
2347 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2348 DWORD dwDisplacement;
2350 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2351 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2353 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2354 &dwDisplacement, pSymbol))
2356 IMAGEHLP_MODULE ModuleInfo;
2357 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2359 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2361 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2363 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2364 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2366 else if (dwDisplacement)
2367 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2369 DPRINTF("4\t%s\n", pSymbol->Name);
2372 ResumeThread(hThread);
2375 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2377 dump_backtrace_for_thread((HANDLE)lpParameter);
2381 /* cannot get valid context from current thread, so we have to execute
2382 * backtrace from another thread */
2383 static void dump_backtrace()
2385 HANDLE hCurrentThread;
2388 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2389 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2390 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2392 WaitForSingleObject(hThread, INFINITE);
2393 CloseHandle(hThread);
2394 CloseHandle(hCurrentThread);
2397 #endif /* asserts or tests enabled */
2400 void _dbus_print_backtrace(void)
2406 void _dbus_print_backtrace(void)
2408 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2412 static dbus_uint32_t fromAscii(char ascii)
2414 if(ascii >= '0' && ascii <= '9')
2416 if(ascii >= 'A' && ascii <= 'F')
2417 return ascii - 'A' + 10;
2418 if(ascii >= 'a' && ascii <= 'f')
2419 return ascii - 'a' + 10;
2423 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2424 dbus_bool_t create_if_not_found,
2431 HW_PROFILE_INFOA info;
2432 char *lpc = &info.szHwProfileGuid[0];
2435 // the hw-profile guid lives long enough
2436 if(!GetCurrentHwProfileA(&info))
2438 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2442 // Form: {12340001-4980-1920-6788-123456789012}
2445 u = ((fromAscii(lpc[0]) << 0) |
2446 (fromAscii(lpc[1]) << 4) |
2447 (fromAscii(lpc[2]) << 8) |
2448 (fromAscii(lpc[3]) << 12) |
2449 (fromAscii(lpc[4]) << 16) |
2450 (fromAscii(lpc[5]) << 20) |
2451 (fromAscii(lpc[6]) << 24) |
2452 (fromAscii(lpc[7]) << 28));
2453 machine_id->as_uint32s[0] = u;
2457 u = ((fromAscii(lpc[0]) << 0) |
2458 (fromAscii(lpc[1]) << 4) |
2459 (fromAscii(lpc[2]) << 8) |
2460 (fromAscii(lpc[3]) << 12) |
2461 (fromAscii(lpc[5]) << 16) |
2462 (fromAscii(lpc[6]) << 20) |
2463 (fromAscii(lpc[7]) << 24) |
2464 (fromAscii(lpc[8]) << 28));
2465 machine_id->as_uint32s[1] = u;
2469 u = ((fromAscii(lpc[0]) << 0) |
2470 (fromAscii(lpc[1]) << 4) |
2471 (fromAscii(lpc[2]) << 8) |
2472 (fromAscii(lpc[3]) << 12) |
2473 (fromAscii(lpc[5]) << 16) |
2474 (fromAscii(lpc[6]) << 20) |
2475 (fromAscii(lpc[7]) << 24) |
2476 (fromAscii(lpc[8]) << 28));
2477 machine_id->as_uint32s[2] = u;
2481 u = ((fromAscii(lpc[0]) << 0) |
2482 (fromAscii(lpc[1]) << 4) |
2483 (fromAscii(lpc[2]) << 8) |
2484 (fromAscii(lpc[3]) << 12) |
2485 (fromAscii(lpc[4]) << 16) |
2486 (fromAscii(lpc[5]) << 20) |
2487 (fromAscii(lpc[6]) << 24) |
2488 (fromAscii(lpc[7]) << 28));
2489 machine_id->as_uint32s[3] = u;
2495 HANDLE _dbus_global_lock (const char *mutexname)
2500 mutex = CreateMutexA( NULL, FALSE, mutexname );
2506 gotMutex = WaitForSingleObject( mutex, INFINITE );
2509 case WAIT_ABANDONED:
2510 ReleaseMutex (mutex);
2511 CloseHandle (mutex);
2522 void _dbus_global_unlock (HANDLE mutex)
2524 ReleaseMutex (mutex);
2525 CloseHandle (mutex);
2528 // for proper cleanup in dbus-daemon
2529 static HANDLE hDBusDaemonMutex = NULL;
2530 static HANDLE hDBusSharedMem = NULL;
2531 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2532 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2533 // sync _dbus_get_autolaunch_address
2534 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2535 // mutex to determine if dbus-daemon is already started (per user)
2536 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2537 // named shm for dbus adress info (per user)
2538 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2541 _dbus_get_install_root_as_hash(DBusString *out)
2543 DBusString install_path;
2545 char path[MAX_PATH*2];
2546 int path_size = sizeof(path);
2548 if (!_dbus_get_install_root(path,path_size))
2551 _dbus_string_init(&install_path);
2552 _dbus_string_append(&install_path,path);
2554 _dbus_string_init(out);
2555 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2557 if (!_dbus_sha_compute (&install_path, out))
2564 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2566 _dbus_string_init(out);
2567 _dbus_string_append(out,basestring);
2573 else if (strcmp(scope,"*install-path") == 0
2574 // for 1.3 compatibility
2575 || strcmp(scope,"install-path") == 0)
2578 if (!_dbus_get_install_root_as_hash(&temp))
2580 _dbus_string_free(out);
2583 _dbus_string_append(out,"-");
2584 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2585 _dbus_string_free(&temp);
2587 else if (strcmp(scope,"*user") == 0)
2589 _dbus_string_append(out,"-");
2590 if (!_dbus_append_user_from_current_process(out))
2592 _dbus_string_free(out);
2596 else if (strlen(scope) > 0)
2598 _dbus_string_append(out,"-");
2599 _dbus_string_append(out,scope);
2606 _dbus_get_shm_name (DBusString *out,const char *scope)
2608 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2612 _dbus_get_mutex_name (DBusString *out,const char *scope)
2614 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2618 _dbus_daemon_is_session_bus_address_published (const char *scope)
2621 DBusString mutex_name;
2623 if (!_dbus_get_mutex_name(&mutex_name,scope))
2625 _dbus_string_free( &mutex_name );
2629 if (hDBusDaemonMutex)
2632 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2633 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2635 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2636 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2637 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2639 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2640 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2643 _dbus_global_unlock( lock );
2645 _dbus_string_free( &mutex_name );
2647 if (hDBusDaemonMutex == NULL)
2649 if (GetLastError() == ERROR_ALREADY_EXISTS)
2651 CloseHandle(hDBusDaemonMutex);
2652 hDBusDaemonMutex = NULL;
2655 // mutex wasn't created before, so return false.
2656 // We leave the mutex name allocated for later reusage
2657 // in _dbus_daemon_publish_session_bus_address.
2662 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2665 char *shared_addr = NULL;
2666 DBusString shm_name;
2667 DBusString mutex_name;
2669 _dbus_assert (address);
2671 if (!_dbus_get_mutex_name(&mutex_name,scope))
2673 _dbus_string_free( &mutex_name );
2677 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2678 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2680 if (!hDBusDaemonMutex)
2682 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2684 _dbus_string_free( &mutex_name );
2686 // acquire the mutex
2687 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2689 _dbus_global_unlock( lock );
2690 CloseHandle( hDBusDaemonMutex );
2694 if (!_dbus_get_shm_name(&shm_name,scope))
2696 _dbus_string_free( &shm_name );
2697 _dbus_global_unlock( lock );
2702 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2703 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2704 _dbus_assert( hDBusSharedMem );
2706 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2708 _dbus_assert (shared_addr);
2710 strcpy( shared_addr, address);
2713 UnmapViewOfFile( shared_addr );
2715 _dbus_global_unlock( lock );
2716 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2718 _dbus_string_free( &shm_name );
2723 _dbus_daemon_unpublish_session_bus_address (void)
2727 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2728 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2730 CloseHandle( hDBusSharedMem );
2732 hDBusSharedMem = NULL;
2734 ReleaseMutex( hDBusDaemonMutex );
2736 CloseHandle( hDBusDaemonMutex );
2738 hDBusDaemonMutex = NULL;
2740 _dbus_global_unlock( lock );
2744 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2752 // we know that dbus-daemon is available, so we wait until shm is available
2753 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2754 if( sharedMem == 0 )
2756 if ( sharedMem != 0)
2760 if( sharedMem == 0 )
2763 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2768 _dbus_string_init( address );
2770 _dbus_string_append( address, shared_addr );
2773 UnmapViewOfFile( shared_addr );
2775 CloseHandle( sharedMem );
2781 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2785 DBusString mutex_name;
2786 dbus_bool_t bRet = TRUE;
2788 if (!_dbus_get_mutex_name(&mutex_name,scope))
2790 _dbus_string_free( &mutex_name );
2794 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2795 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2798 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2799 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2801 ReleaseMutex (daemon);
2802 CloseHandle (daemon);
2804 _dbus_global_unlock( lock );
2805 _dbus_string_free( &mutex_name );
2810 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2813 CloseHandle ( daemon );
2815 _dbus_global_unlock( lock );
2816 _dbus_string_free( &mutex_name );
2822 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2827 PROCESS_INFORMATION pi;
2828 dbus_bool_t retval = FALSE;
2830 char dbus_exe_path[MAX_PATH];
2831 char dbus_args[MAX_PATH * 2];
2832 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2833 DBusString shm_name;
2835 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2837 if (!_dbus_get_shm_name(&shm_name,scope))
2839 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2843 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2845 if (_dbus_daemon_already_runs(address,&shm_name,scope))
2847 _dbus_verbose( "found running dbus daemon at %s\n",
2848 _dbus_string_get_const_data (&shm_name) );
2853 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2855 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2856 printf ("or start the daemon manually\n\n");
2861 ZeroMemory( &si, sizeof(si) );
2863 ZeroMemory( &pi, sizeof(pi) );
2865 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2867 // argv[i] = "--config-file=bus\\session.conf";
2868 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2869 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2871 CloseHandle (pi.hThread);
2872 CloseHandle (pi.hProcess);
2873 retval = _dbus_get_autolaunch_shm( address, &shm_name );
2874 if (retval == FALSE)
2875 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
2879 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2885 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2887 _DBUS_ASSERT_ERROR_IS_SET (error);
2889 _dbus_global_unlock (mutex);
2895 /** Makes the file readable by every user in the system.
2897 * @param filename the filename
2898 * @param error error location
2899 * @returns #TRUE if the file's permissions could be changed.
2902 _dbus_make_file_world_readable(const DBusString *filename,
2910 * return the relocated DATADIR
2912 * @returns relocated DATADIR static string
2916 _dbus_windows_get_datadir (void)
2918 return _dbus_replace_install_prefix(DBUS_DATADIR);
2922 #define DBUS_DATADIR _dbus_windows_get_datadir ()
2925 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2926 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2929 * Returns the standard directories for a session bus to look for service
2932 * On Windows this should be data directories:
2934 * %CommonProgramFiles%/dbus
2938 * relocated DBUS_DATADIR
2940 * @param dirs the directory list we are returning
2941 * @returns #FALSE on OOM
2945 _dbus_get_standard_session_servicedirs (DBusList **dirs)
2947 const char *common_progs;
2948 DBusString servicedir_path;
2950 if (!_dbus_string_init (&servicedir_path))
2955 /* On Windows CE, we adjust datadir dynamically to installation location. */
2956 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
2958 if (data_dir != NULL)
2960 if (!_dbus_string_append (&servicedir_path, data_dir))
2963 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2969 the code for accessing services requires absolute base pathes
2970 in case DBUS_DATADIR is relative make it absolute
2976 _dbus_string_init_const (&p, DBUS_DATADIR);
2978 if (!_dbus_path_is_absolute (&p))
2980 char install_root[1000];
2981 if (_dbus_get_install_root (install_root, sizeof(install_root)))
2982 if (!_dbus_string_append (&servicedir_path, install_root))
2987 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
2990 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2994 common_progs = _dbus_getenv ("CommonProgramFiles");
2996 if (common_progs != NULL)
2998 if (!_dbus_string_append (&servicedir_path, common_progs))
3001 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3005 if (!_dbus_split_paths_and_append (&servicedir_path,
3006 DBUS_STANDARD_SESSION_SERVICEDIR,
3010 _dbus_string_free (&servicedir_path);
3014 _dbus_string_free (&servicedir_path);
3019 * Returns the standard directories for a system bus to look for service
3022 * On UNIX this should be the standard xdg freedesktop.org data directories:
3024 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3030 * On Windows there is no system bus and this function can return nothing.
3032 * @param dirs the directory list we are returning
3033 * @returns #FALSE on OOM
3037 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3043 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
3046 * Atomically increments an integer
3048 * @param atomic pointer to the integer to increment
3049 * @returns the value before incrementing
3053 _dbus_atomic_inc (DBusAtomic *atomic)
3055 // +/- 1 is needed here!
3056 // no volatile argument with mingw
3057 return InterlockedIncrement (&atomic->value) - 1;
3061 * Atomically decrement an integer
3063 * @param atomic pointer to the integer to decrement
3064 * @returns the value before decrementing
3068 _dbus_atomic_dec (DBusAtomic *atomic)
3070 // +/- 1 is needed here!
3071 // no volatile argument with mingw
3072 return InterlockedDecrement (&atomic->value) + 1;
3076 * Atomically get the value of an integer. It may change at any time
3077 * thereafter, so this is mostly only useful for assertions.
3079 * @param atomic pointer to the integer to get
3080 * @returns the value at this moment
3083 _dbus_atomic_get (DBusAtomic *atomic)
3085 /* this is what GLib does, hopefully it's right... */
3087 return atomic->value;
3091 * Called when the bus daemon is signaled to reload its configuration; any
3092 * caches should be nuked. Of course any caches that need explicit reload
3093 * are probably broken, but c'est la vie.
3098 _dbus_flush_caches (void)
3103 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3104 * for Winsock so is abstracted)
3106 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3109 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3111 return errno == WSAEWOULDBLOCK;
3115 * return the absolute path of the dbus installation
3117 * @param s buffer for installation path
3118 * @param len length of buffer
3119 * @returns #FALSE on failure
3122 _dbus_get_install_root(char *prefix, int len)
3124 //To find the prefix, we cut the filename and also \bin\ if present
3128 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3129 if ( pathLength == 0 || GetLastError() != 0 ) {
3133 lastSlash = _mbsrchr(prefix, '\\');
3134 if (lastSlash == NULL) {
3138 //cut off binary name
3141 //cut possible "\\bin"
3143 //this fails if we are in a double-byte system codepage and the
3144 //folder's name happens to end with the *bytes*
3145 //"\\bin"... (I.e. the second byte of some Han character and then
3146 //the Latin "bin", but that is not likely I think...
3147 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3149 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3151 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3158 find config file either from installation or build root according to
3159 the following path layout
3161 bin/dbus-daemon[d].exe
3162 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3163 (the former above is what dbus4win uses, the latter above is
3164 what a "normal" Unix-style "make install" uses)
3167 bin/dbus-daemon[d].exe
3168 bus/<config-file>.conf
3171 _dbus_get_config_file_name(DBusString *config_file, char *s)
3173 char path[MAX_PATH*2];
3174 int path_size = sizeof(path);
3176 if (!_dbus_get_install_root(path,path_size))
3179 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3181 strcat(path,"etc\\");
3183 if (_dbus_file_exists(path))
3185 // find path from executable
3186 if (!_dbus_string_append (config_file, path))
3191 if (!_dbus_get_install_root(path,path_size))
3193 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3195 strcat(path,"etc\\dbus-1\\");
3198 if (_dbus_file_exists(path))
3200 if (!_dbus_string_append (config_file, path))
3205 if (!_dbus_get_install_root(path,path_size))
3207 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3209 strcat(path,"bus\\");
3212 if (_dbus_file_exists(path))
3214 if (!_dbus_string_append (config_file, path))
3223 * Append the absolute path of the system.conf file
3224 * (there is no system bus on Windows so this can just
3225 * return FALSE and print a warning or something)
3227 * @param str the string to append to
3228 * @returns #FALSE if no memory
3231 _dbus_append_system_config_file (DBusString *str)
3233 return _dbus_get_config_file_name(str, "system.conf");
3237 * Append the absolute path of the session.conf file.
3239 * @param str the string to append to
3240 * @returns #FALSE if no memory
3243 _dbus_append_session_config_file (DBusString *str)
3245 return _dbus_get_config_file_name(str, "session.conf");
3248 /* See comment in dbus-sysdeps-unix.c */
3250 _dbus_lookup_session_address (dbus_bool_t *supported,
3251 DBusString *address,
3254 /* Probably fill this in with something based on COM? */
3260 * Appends the directory in which a keyring for the given credentials
3261 * should be stored. The credentials should have either a Windows or
3262 * UNIX user in them. The directory should be an absolute path.
3264 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3265 * be something else, since the dotfile convention is not normal on Windows.
3267 * @param directory string to append directory to
3268 * @param credentials credentials the directory should be for
3270 * @returns #FALSE on no memory
3273 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3274 DBusCredentials *credentials)
3278 const char *homepath;
3279 const char *homedrive;
3281 _dbus_assert (credentials != NULL);
3282 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3284 if (!_dbus_string_init (&homedir))
3287 homedrive = _dbus_getenv("HOMEDRIVE");
3288 if (homedrive != NULL && *homedrive != '\0')
3290 _dbus_string_append(&homedir,homedrive);
3293 homepath = _dbus_getenv("HOMEPATH");
3294 if (homepath != NULL && *homepath != '\0')
3296 _dbus_string_append(&homedir,homepath);
3299 #ifdef DBUS_BUILD_TESTS
3301 const char *override;
3303 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3304 if (override != NULL && *override != '\0')
3306 _dbus_string_set_length (&homedir, 0);
3307 if (!_dbus_string_append (&homedir, override))
3310 _dbus_verbose ("Using fake homedir for testing: %s\n",
3311 _dbus_string_get_const_data (&homedir));
3315 static dbus_bool_t already_warned = FALSE;
3316 if (!already_warned)
3318 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3319 already_warned = TRUE;
3326 /* It's not possible to create a .something directory in Windows CE
3327 using the file explorer. */
3328 #define KEYRING_DIR "dbus-keyrings"
3330 #define KEYRING_DIR ".dbus-keyrings"
3333 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3334 if (!_dbus_concat_dir_and_file (&homedir,
3338 if (!_dbus_string_copy (&homedir, 0,
3339 directory, _dbus_string_get_length (directory))) {
3343 _dbus_string_free (&homedir);
3347 _dbus_string_free (&homedir);
3351 /** Checks if a file exists
3353 * @param file full path to the file
3354 * @returns #TRUE if file exists
3357 _dbus_file_exists (const char *file)
3359 DWORD attributes = GetFileAttributesA (file);
3361 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3368 * A wrapper around strerror() because some platforms
3369 * may be lame and not have strerror().
3371 * @param error_number errno.
3372 * @returns error description.
3375 _dbus_strerror (int error_number)
3383 switch (error_number)
3386 return "Interrupted function call";
3388 return "Permission denied";
3390 return "Bad address";
3392 return "Invalid argument";
3394 return "Too many open files";
3395 case WSAEWOULDBLOCK:
3396 return "Resource temporarily unavailable";
3397 case WSAEINPROGRESS:
3398 return "Operation now in progress";
3400 return "Operation already in progress";
3402 return "Socket operation on nonsocket";
3403 case WSAEDESTADDRREQ:
3404 return "Destination address required";
3406 return "Message too long";
3408 return "Protocol wrong type for socket";
3409 case WSAENOPROTOOPT:
3410 return "Bad protocol option";
3411 case WSAEPROTONOSUPPORT:
3412 return "Protocol not supported";
3413 case WSAESOCKTNOSUPPORT:
3414 return "Socket type not supported";
3416 return "Operation not supported";
3417 case WSAEPFNOSUPPORT:
3418 return "Protocol family not supported";
3419 case WSAEAFNOSUPPORT:
3420 return "Address family not supported by protocol family";
3422 return "Address already in use";
3423 case WSAEADDRNOTAVAIL:
3424 return "Cannot assign requested address";
3426 return "Network is down";
3427 case WSAENETUNREACH:
3428 return "Network is unreachable";
3430 return "Network dropped connection on reset";
3431 case WSAECONNABORTED:
3432 return "Software caused connection abort";
3434 return "Connection reset by peer";
3436 return "No buffer space available";
3438 return "Socket is already connected";
3440 return "Socket is not connected";
3442 return "Cannot send after socket shutdown";
3444 return "Connection timed out";
3445 case WSAECONNREFUSED:
3446 return "Connection refused";
3448 return "Host is down";
3449 case WSAEHOSTUNREACH:
3450 return "No route to host";
3452 return "Too many processes";
3454 return "Graceful shutdown in progress";
3455 case WSATYPE_NOT_FOUND:
3456 return "Class type not found";
3457 case WSAHOST_NOT_FOUND:
3458 return "Host not found";
3460 return "Nonauthoritative host not found";
3461 case WSANO_RECOVERY:
3462 return "This is a nonrecoverable error";
3464 return "Valid name, no data record of requested type";
3465 case WSA_INVALID_HANDLE:
3466 return "Specified event object handle is invalid";
3467 case WSA_INVALID_PARAMETER:
3468 return "One or more parameters are invalid";
3469 case WSA_IO_INCOMPLETE:
3470 return "Overlapped I/O event object not in signaled state";
3471 case WSA_IO_PENDING:
3472 return "Overlapped operations will complete later";
3473 case WSA_NOT_ENOUGH_MEMORY:
3474 return "Insufficient memory available";
3475 case WSA_OPERATION_ABORTED:
3476 return "Overlapped operation aborted";
3477 #ifdef WSAINVALIDPROCTABLE
3479 case WSAINVALIDPROCTABLE:
3480 return "Invalid procedure table from service provider";
3482 #ifdef WSAINVALIDPROVIDER
3484 case WSAINVALIDPROVIDER:
3485 return "Invalid service provider version number";
3487 #ifdef WSAPROVIDERFAILEDINIT
3489 case WSAPROVIDERFAILEDINIT:
3490 return "Unable to initialize a service provider";
3493 case WSASYSCALLFAILURE:
3494 return "System call failure";
3496 msg = strerror (error_number);
3505 * Assigns an error name and message corresponding to a Win32 error
3506 * code to a DBusError. Does nothing if error is #NULL.
3508 * @param error the error.
3509 * @param code the Win32 error code
3512 _dbus_win_set_error_from_win_error (DBusError *error,
3517 /* As we want the English message, use the A API */
3518 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3519 FORMAT_MESSAGE_IGNORE_INSERTS |
3520 FORMAT_MESSAGE_FROM_SYSTEM,
3521 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3522 (LPSTR) &msg, 0, NULL);
3527 msg_copy = dbus_malloc (strlen (msg));
3528 strcpy (msg_copy, msg);
3531 dbus_set_error (error, "win32.error", "%s", msg_copy);
3534 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3538 _dbus_win_warn_win_error (const char *message,
3543 dbus_error_init (&error);
3544 _dbus_win_set_error_from_win_error (&error, code);
3545 _dbus_warn ("%s: %s\n", message, error.message);
3546 dbus_error_free (&error);
3550 * Removes a directory; Directory must be empty
3552 * @param filename directory filename
3553 * @param error initialized error object
3554 * @returns #TRUE on success
3557 _dbus_delete_directory (const DBusString *filename,
3560 const char *filename_c;
3562 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3564 filename_c = _dbus_string_get_const_data (filename);
3566 if (RemoveDirectoryA (filename_c) == 0)
3568 char *emsg = _dbus_win_error_string (GetLastError ());
3569 dbus_set_error (error, _dbus_win_error_from_last_error (),
3570 "Failed to remove directory %s: %s",
3572 _dbus_win_free_error_string (emsg);
3580 * Checks whether the filename is an absolute path
3582 * @param filename the filename
3583 * @returns #TRUE if an absolute path
3586 _dbus_path_is_absolute (const DBusString *filename)
3588 if (_dbus_string_get_length (filename) > 0)
3589 return _dbus_string_get_byte (filename, 1) == ':'
3590 || _dbus_string_get_byte (filename, 0) == '\\'
3591 || _dbus_string_get_byte (filename, 0) == '/';
3596 /** @} end of sysdeps-win */
3597 /* tests in dbus-sysdeps-util.c */