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 * @param fd1 return location for one end
803 * @param fd2 return location for the other end
804 * @param blocking #TRUE if pipe should be blocking
805 * @param error error return
806 * @returns #FALSE on failure (if error is set)
809 _dbus_full_duplex_pipe (int *fd1,
811 dbus_bool_t blocking,
814 SOCKET temp, socket1 = -1, socket2 = -1;
815 struct sockaddr_in saddr;
819 _dbus_win_startup_winsock ();
821 temp = socket (AF_INET, SOCK_STREAM, 0);
822 if (temp == INVALID_SOCKET)
824 DBUS_SOCKET_SET_ERRNO ();
829 saddr.sin_family = AF_INET;
831 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
833 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
835 DBUS_SOCKET_SET_ERRNO ();
839 if (listen (temp, 1) == SOCKET_ERROR)
841 DBUS_SOCKET_SET_ERRNO ();
845 len = sizeof (saddr);
846 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
848 DBUS_SOCKET_SET_ERRNO ();
852 socket1 = socket (AF_INET, SOCK_STREAM, 0);
853 if (socket1 == INVALID_SOCKET)
855 DBUS_SOCKET_SET_ERRNO ();
859 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
861 DBUS_SOCKET_SET_ERRNO ();
865 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
866 if (socket2 == INVALID_SOCKET)
868 DBUS_SOCKET_SET_ERRNO ();
875 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
877 DBUS_SOCKET_SET_ERRNO ();
882 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
884 DBUS_SOCKET_SET_ERRNO ();
892 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
893 *fd1, socket1, *fd2, socket2);
900 closesocket (socket2);
902 closesocket (socket1);
906 dbus_set_error (error, _dbus_error_from_errno (errno),
907 "Could not setup socket pair: %s",
908 _dbus_strerror_from_errno ());
914 * Wrapper for poll().
916 * @param fds the file descriptors to poll
917 * @param n_fds number of descriptors in the array
918 * @param timeout_milliseconds timeout or -1 for infinite
919 * @returns numbers of fds with revents, or <0 on error
922 _dbus_poll (DBusPollFD *fds,
924 int timeout_milliseconds)
926 #define USE_CHRIS_IMPL 0
930 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
931 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
939 #define DBUS_STACK_WSAEVENTS 256
940 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
941 WSAEVENT *pEvents = NULL;
942 if (n_fds > DBUS_STACK_WSAEVENTS)
943 pEvents = calloc(sizeof(WSAEVENT), n_fds);
945 pEvents = eventsOnStack;
948 #ifdef DBUS_ENABLE_VERBOSE_MODE
950 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
951 for (i = 0; i < n_fds; i++)
953 DBusPollFD *fdp = &fds[i];
956 if (fdp->events & _DBUS_POLLIN)
957 msgp += sprintf (msgp, "R:%d ", fdp->fd);
959 if (fdp->events & _DBUS_POLLOUT)
960 msgp += sprintf (msgp, "W:%d ", fdp->fd);
962 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
964 // FIXME: more robust code for long msg
965 // create on heap when msg[] becomes too small
966 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
968 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
972 msgp += sprintf (msgp, "\n");
973 _dbus_verbose ("%s",msg);
975 for (i = 0; i < n_fds; i++)
977 DBusPollFD *fdp = &fds[i];
979 long lNetworkEvents = FD_OOB;
981 ev = WSACreateEvent();
983 if (fdp->events & _DBUS_POLLIN)
984 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
986 if (fdp->events & _DBUS_POLLOUT)
987 lNetworkEvents |= FD_WRITE | FD_CONNECT;
989 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
995 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
997 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
999 DBUS_SOCKET_SET_ERRNO ();
1000 if (errno != WSAEWOULDBLOCK)
1001 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1004 else if (ready == WSA_WAIT_TIMEOUT)
1006 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1009 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1012 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1014 for (i = 0; i < n_fds; i++)
1016 DBusPollFD *fdp = &fds[i];
1017 WSANETWORKEVENTS ne;
1021 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1023 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1024 fdp->revents |= _DBUS_POLLIN;
1026 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1027 fdp->revents |= _DBUS_POLLOUT;
1029 if (ne.lNetworkEvents & (FD_OOB))
1030 fdp->revents |= _DBUS_POLLERR;
1032 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1033 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1035 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1036 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1038 if (ne.lNetworkEvents & (FD_OOB))
1039 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1041 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1043 if(ne.lNetworkEvents)
1046 WSAEventSelect(fdp->fd, pEvents[i], 0);
1049 msgp += sprintf (msgp, "\n");
1050 _dbus_verbose ("%s",msg);
1054 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1058 for(i = 0; i < n_fds; i++)
1060 WSACloseEvent(pEvents[i]);
1063 if (n_fds > DBUS_STACK_WSAEVENTS)
1068 #else /* USE_CHRIS_IMPL */
1070 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1071 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1074 fd_set read_set, write_set, err_set;
1080 FD_ZERO (&read_set);
1081 FD_ZERO (&write_set);
1085 #ifdef DBUS_ENABLE_VERBOSE_MODE
1087 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1088 for (i = 0; i < n_fds; i++)
1090 DBusPollFD *fdp = &fds[i];
1093 if (fdp->events & _DBUS_POLLIN)
1094 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1096 if (fdp->events & _DBUS_POLLOUT)
1097 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1099 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1101 // FIXME: more robust code for long msg
1102 // create on heap when msg[] becomes too small
1103 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1105 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1109 msgp += sprintf (msgp, "\n");
1110 _dbus_verbose ("%s",msg);
1112 for (i = 0; i < n_fds; i++)
1114 DBusPollFD *fdp = &fds[i];
1116 if (fdp->events & _DBUS_POLLIN)
1117 FD_SET (fdp->fd, &read_set);
1119 if (fdp->events & _DBUS_POLLOUT)
1120 FD_SET (fdp->fd, &write_set);
1122 FD_SET (fdp->fd, &err_set);
1124 max_fd = MAX (max_fd, fdp->fd);
1127 // Avoid random lockups with send(), for lack of a better solution so far
1128 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1129 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1131 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1133 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1135 DBUS_SOCKET_SET_ERRNO ();
1136 if (errno != WSAEWOULDBLOCK)
1137 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1139 else if (ready == 0)
1140 _dbus_verbose ("select: = 0\n");
1144 #ifdef DBUS_ENABLE_VERBOSE_MODE
1146 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1148 for (i = 0; i < n_fds; i++)
1150 DBusPollFD *fdp = &fds[i];
1152 if (FD_ISSET (fdp->fd, &read_set))
1153 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1155 if (FD_ISSET (fdp->fd, &write_set))
1156 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1158 if (FD_ISSET (fdp->fd, &err_set))
1159 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1161 msgp += sprintf (msgp, "\n");
1162 _dbus_verbose ("%s",msg);
1165 for (i = 0; i < n_fds; i++)
1167 DBusPollFD *fdp = &fds[i];
1171 if (FD_ISSET (fdp->fd, &read_set))
1172 fdp->revents |= _DBUS_POLLIN;
1174 if (FD_ISSET (fdp->fd, &write_set))
1175 fdp->revents |= _DBUS_POLLOUT;
1177 if (FD_ISSET (fdp->fd, &err_set))
1178 fdp->revents |= _DBUS_POLLERR;
1182 #endif /* USE_CHRIS_IMPL */
1188 /******************************************************************************
1190 Original CVS version of dbus-sysdeps.c
1192 ******************************************************************************/
1193 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1194 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1196 * Copyright (C) 2002, 2003 Red Hat, Inc.
1197 * Copyright (C) 2003 CodeFactory AB
1198 * Copyright (C) 2005 Novell, Inc.
1200 * Licensed under the Academic Free License version 2.1
1202 * This program is free software; you can redistribute it and/or modify
1203 * it under the terms of the GNU General Public License as published by
1204 * the Free Software Foundation; either version 2 of the License, or
1205 * (at your option) any later version.
1207 * This program is distributed in the hope that it will be useful,
1208 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1209 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1210 * GNU General Public License for more details.
1212 * You should have received a copy of the GNU General Public License
1213 * along with this program; if not, write to the Free Software
1214 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1220 * Exit the process, returning the given value.
1222 * @param code the exit code
1225 _dbus_exit (int code)
1231 * Creates a socket and connects to a socket at the given host
1232 * and port. The connection fd is returned, and is set up as
1235 * @param host the host name to connect to
1236 * @param port the port to connect to
1237 * @param family the address family to listen on, NULL for all
1238 * @param error return location for error code
1239 * @returns connection file descriptor or -1 on error
1242 _dbus_connect_tcp_socket (const char *host,
1247 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1251 _dbus_connect_tcp_socket_with_nonce (const char *host,
1254 const char *noncefile,
1258 struct addrinfo hints;
1259 struct addrinfo *ai, *tmp;
1261 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1263 _dbus_win_startup_winsock ();
1268 hints.ai_family = AF_UNSPEC;
1269 else if (!strcmp(family, "ipv4"))
1270 hints.ai_family = AF_INET;
1271 else if (!strcmp(family, "ipv6"))
1272 hints.ai_family = AF_INET6;
1275 dbus_set_error (error,
1276 DBUS_ERROR_INVALID_ARGS,
1277 "Unknown address family %s", family);
1280 hints.ai_protocol = IPPROTO_TCP;
1281 hints.ai_socktype = SOCK_STREAM;
1282 #ifdef AI_ADDRCONFIG
1283 hints.ai_flags = AI_ADDRCONFIG;
1288 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1290 dbus_set_error (error,
1291 _dbus_error_from_errno (res),
1292 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1293 host, port, _dbus_strerror(res), res);
1300 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1302 DBUS_SOCKET_SET_ERRNO ();
1303 dbus_set_error (error,
1304 _dbus_error_from_errno (errno),
1305 "Failed to open socket: %s",
1306 _dbus_strerror_from_errno ());
1310 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1312 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1314 DBUS_SOCKET_SET_ERRNO ();
1327 dbus_set_error (error,
1328 _dbus_error_from_errno (errno),
1329 "Failed to connect to socket \"%s:%s\" %s",
1330 host, port, _dbus_strerror_from_errno ());
1334 if (noncefile != NULL)
1336 DBusString noncefileStr;
1338 if (!_dbus_string_init (&noncefileStr) ||
1339 !_dbus_string_append(&noncefileStr, noncefile))
1342 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1346 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1348 _dbus_string_free (&noncefileStr);
1357 _dbus_fd_set_close_on_exec (fd);
1359 if (!_dbus_set_fd_nonblocking (fd, error))
1369 * Creates a socket and binds it to the given path, then listens on
1370 * the socket. The socket is set to be nonblocking. In case of port=0
1371 * a random free port is used and returned in the port parameter.
1372 * If inaddr_any is specified, the hostname is ignored.
1374 * @param host the host name to listen on
1375 * @param port the port to listen on, if zero a free port will be used
1376 * @param family the address family to listen on, NULL for all
1377 * @param retport string to return the actual port listened on
1378 * @param fds_p location to store returned file descriptors
1379 * @param error return location for errors
1380 * @returns the number of listening file descriptors or -1 on error
1384 _dbus_listen_tcp_socket (const char *host,
1387 DBusString *retport,
1391 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1392 struct addrinfo hints;
1393 struct addrinfo *ai, *tmp;
1395 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1396 //That's required for family == IPv6(which is the default on Vista if family is not given)
1397 //So we use our own union instead of sockaddr_gen:
1400 struct sockaddr Address;
1401 struct sockaddr_in AddressIn;
1402 struct sockaddr_in6 AddressIn6;
1406 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1408 _dbus_win_startup_winsock ();
1413 hints.ai_family = AF_UNSPEC;
1414 else if (!strcmp(family, "ipv4"))
1415 hints.ai_family = AF_INET;
1416 else if (!strcmp(family, "ipv6"))
1417 hints.ai_family = AF_INET6;
1420 dbus_set_error (error,
1421 DBUS_ERROR_INVALID_ARGS,
1422 "Unknown address family %s", family);
1426 hints.ai_protocol = IPPROTO_TCP;
1427 hints.ai_socktype = SOCK_STREAM;
1428 #ifdef AI_ADDRCONFIG
1429 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1431 hints.ai_flags = AI_PASSIVE;
1434 redo_lookup_with_port:
1435 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1437 dbus_set_error (error,
1438 _dbus_error_from_errno (res),
1439 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1440 host ? host : "*", port, _dbus_strerror(res), res);
1447 int fd = -1, *newlisten_fd;
1448 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1450 DBUS_SOCKET_SET_ERRNO ();
1451 dbus_set_error (error,
1452 _dbus_error_from_errno (errno),
1453 "Failed to open socket: %s",
1454 _dbus_strerror_from_errno ());
1457 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1459 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1461 DBUS_SOCKET_SET_ERRNO ();
1462 dbus_set_error (error, _dbus_error_from_errno (errno),
1463 "Failed to bind socket \"%s:%s\": %s",
1464 host ? host : "*", port, _dbus_strerror_from_errno ());
1469 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1471 DBUS_SOCKET_SET_ERRNO ();
1472 dbus_set_error (error, _dbus_error_from_errno (errno),
1473 "Failed to listen on socket \"%s:%s\": %s",
1474 host ? host : "*", port, _dbus_strerror_from_errno ());
1479 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1483 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1484 "Failed to allocate file handle array");
1487 listen_fd = newlisten_fd;
1488 listen_fd[nlisten_fd] = fd;
1491 if (!_dbus_string_get_length(retport))
1493 /* If the user didn't specify a port, or used 0, then
1494 the kernel chooses a port. After the first address
1495 is bound to, we need to force all remaining addresses
1496 to use the same port */
1497 if (!port || !strcmp(port, "0"))
1499 mysockaddr_gen addr;
1500 socklen_t addrlen = sizeof(addr);
1503 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1505 DBUS_SOCKET_SET_ERRNO ();
1506 dbus_set_error (error, _dbus_error_from_errno (errno),
1507 "Failed to resolve port \"%s:%s\": %s",
1508 host ? host : "*", port, _dbus_strerror_from_errno());
1511 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1512 if (!_dbus_string_append(retport, portbuf))
1514 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1518 /* Release current address list & redo lookup */
1519 port = _dbus_string_get_const_data(retport);
1521 goto redo_lookup_with_port;
1525 if (!_dbus_string_append(retport, port))
1527 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1540 _dbus_win_set_errno (WSAEADDRINUSE);
1541 dbus_set_error (error, _dbus_error_from_errno (errno),
1542 "Failed to bind socket \"%s:%s\": %s",
1543 host ? host : "*", port, _dbus_strerror_from_errno ());
1547 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1549 for (i = 0 ; i < nlisten_fd ; i++)
1551 _dbus_fd_set_close_on_exec (listen_fd[i]);
1552 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1565 for (i = 0 ; i < nlisten_fd ; i++)
1566 closesocket (listen_fd[i]);
1567 dbus_free(listen_fd);
1573 * Accepts a connection on a listening socket.
1574 * Handles EINTR for you.
1576 * @param listen_fd the listen file descriptor
1577 * @returns the connection fd of the client, or -1 on error
1580 _dbus_accept (int listen_fd)
1585 client_fd = accept (listen_fd, NULL, NULL);
1587 if (DBUS_SOCKET_IS_INVALID (client_fd))
1589 DBUS_SOCKET_SET_ERRNO ();
1594 _dbus_verbose ("client fd %d accepted\n", client_fd);
1603 _dbus_send_credentials_socket (int handle,
1606 /* FIXME: for the session bus credentials shouldn't matter (?), but
1607 * for the system bus they are presumably essential. A rough outline
1608 * of a way to implement the credential transfer would be this:
1610 * client waits to *read* a byte.
1612 * server creates a named pipe with a random name, sends a byte
1613 * contining its length, and its name.
1615 * client reads the name, connects to it (using Win32 API).
1617 * server waits for connection to the named pipe, then calls
1618 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1619 * calls RevertToSelf(), closes its handles to the named pipe, and
1620 * is done. (Maybe there is some other way to get the SID of a named
1621 * pipe client without having to use impersonation?)
1623 * client closes its handles and is done.
1625 * Ralf: Why not sending credentials over the given this connection ?
1626 * Using named pipes makes it impossible to be connected from a unix client.
1632 _dbus_string_init_const_len (&buf, "\0", 1);
1634 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1636 if (bytes_written < 0 && errno == EINTR)
1639 if (bytes_written < 0)
1641 dbus_set_error (error, _dbus_error_from_errno (errno),
1642 "Failed to write credentials byte: %s",
1643 _dbus_strerror_from_errno ());
1646 else if (bytes_written == 0)
1648 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1649 "wrote zero bytes writing credentials byte");
1654 _dbus_assert (bytes_written == 1);
1655 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1662 * Reads a single byte which must be nul (an error occurs otherwise),
1663 * and reads unix credentials if available. Fills in pid/uid/gid with
1664 * -1 if no credentials are available. Return value indicates whether
1665 * a byte was read, not whether we got valid credentials. On some
1666 * systems, such as Linux, reading/writing the byte isn't actually
1667 * required, but we do it anyway just to avoid multiple codepaths.
1669 * Fails if no byte is available, so you must select() first.
1671 * The point of the byte is that on some systems we have to
1672 * use sendmsg()/recvmsg() to transmit credentials.
1674 * @param client_fd the client file descriptor
1675 * @param credentials struct to fill with credentials of client
1676 * @param error location to store error code
1677 * @returns #TRUE on success
1680 _dbus_read_credentials_socket (int handle,
1681 DBusCredentials *credentials,
1687 // could fail due too OOM
1688 if (_dbus_string_init(&buf))
1690 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1693 _dbus_verbose("got one zero byte from server");
1695 _dbus_string_free(&buf);
1698 _dbus_credentials_add_from_current_process (credentials);
1699 _dbus_verbose("FIXME: get faked credentials from current process");
1705 * Checks to make sure the given directory is
1706 * private to the user
1708 * @param dir the name of the directory
1709 * @param error error return
1710 * @returns #FALSE on failure
1713 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1716 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1722 * Appends the given filename to the given directory.
1724 * @todo it might be cute to collapse multiple '/' such as "foo//"
1727 * @param dir the directory name
1728 * @param next_component the filename
1729 * @returns #TRUE on success
1732 _dbus_concat_dir_and_file (DBusString *dir,
1733 const DBusString *next_component)
1735 dbus_bool_t dir_ends_in_slash;
1736 dbus_bool_t file_starts_with_slash;
1738 if (_dbus_string_get_length (dir) == 0 ||
1739 _dbus_string_get_length (next_component) == 0)
1743 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1744 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1746 file_starts_with_slash =
1747 ('/' == _dbus_string_get_byte (next_component, 0) ||
1748 '\\' == _dbus_string_get_byte (next_component, 0));
1750 if (dir_ends_in_slash && file_starts_with_slash)
1752 _dbus_string_shorten (dir, 1);
1754 else if (!(dir_ends_in_slash || file_starts_with_slash))
1756 if (!_dbus_string_append_byte (dir, '\\'))
1760 return _dbus_string_copy (next_component, 0, dir,
1761 _dbus_string_get_length (dir));
1764 /*---------------- DBusCredentials ----------------------------------*/
1767 * Adds the credentials corresponding to the given username.
1769 * @param credentials credentials to fill in
1770 * @param username the username
1771 * @returns #TRUE if the username existed and we got some credentials
1774 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1775 const DBusString *username)
1777 return _dbus_credentials_add_windows_sid (credentials,
1778 _dbus_string_get_const_data(username));
1782 * Adds the credentials of the current process to the
1783 * passed-in credentials object.
1785 * @param credentials credentials to add to
1786 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1790 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1792 dbus_bool_t retval = FALSE;
1795 if (!_dbus_getsid(&sid))
1798 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1801 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1816 * Append to the string the identity we would like to have when we
1817 * authenticate, on UNIX this is the current process UID and on
1818 * Windows something else, probably a Windows SID string. No escaping
1819 * is required, that is done in dbus-auth.c. The username here
1820 * need not be anything human-readable, it can be the machine-readable
1821 * form i.e. a user id.
1823 * @param str the string to append to
1824 * @returns #FALSE on no memory
1825 * @todo to which class belongs this
1828 _dbus_append_user_from_current_process (DBusString *str)
1830 dbus_bool_t retval = FALSE;
1833 if (!_dbus_getsid(&sid))
1836 retval = _dbus_string_append (str,sid);
1843 * Gets our process ID
1844 * @returns process ID
1849 return GetCurrentProcessId ();
1852 /** nanoseconds in a second */
1853 #define NANOSECONDS_PER_SECOND 1000000000
1854 /** microseconds in a second */
1855 #define MICROSECONDS_PER_SECOND 1000000
1856 /** milliseconds in a second */
1857 #define MILLISECONDS_PER_SECOND 1000
1858 /** nanoseconds in a millisecond */
1859 #define NANOSECONDS_PER_MILLISECOND 1000000
1860 /** microseconds in a millisecond */
1861 #define MICROSECONDS_PER_MILLISECOND 1000
1864 * Sleeps the given number of milliseconds.
1865 * @param milliseconds number of milliseconds
1868 _dbus_sleep_milliseconds (int milliseconds)
1870 Sleep (milliseconds);
1875 * Get current time, as in gettimeofday().
1877 * @param tv_sec return location for number of seconds
1878 * @param tv_usec return location for number of microseconds
1881 _dbus_get_current_time (long *tv_sec,
1885 dbus_uint64_t time64;
1887 GetSystemTimeAsFileTime (&ft);
1889 memcpy (&time64, &ft, sizeof (time64));
1891 /* Convert from 100s of nanoseconds since 1601-01-01
1892 * to Unix epoch. Yes, this is Y2038 unsafe.
1894 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1898 *tv_sec = time64 / 1000000;
1901 *tv_usec = time64 % 1000000;
1906 * signal (SIGPIPE, SIG_IGN);
1909 _dbus_disable_sigpipe (void)
1914 * Creates a directory; succeeds if the directory
1915 * is created or already existed.
1917 * @param filename directory filename
1918 * @param error initialized error object
1919 * @returns #TRUE on success
1922 _dbus_create_directory (const DBusString *filename,
1925 const char *filename_c;
1927 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1929 filename_c = _dbus_string_get_const_data (filename);
1931 if (!CreateDirectoryA (filename_c, NULL))
1933 if (GetLastError () == ERROR_ALREADY_EXISTS)
1936 dbus_set_error (error, DBUS_ERROR_FAILED,
1937 "Failed to create directory %s: %s\n",
1938 filename_c, _dbus_strerror_from_errno ());
1947 * Generates the given number of random bytes,
1948 * using the best mechanism we can come up with.
1950 * @param str the string
1951 * @param n_bytes the number of random bytes to append to string
1952 * @returns #TRUE on success, #FALSE if no memory
1955 _dbus_generate_random_bytes (DBusString *str,
1962 old_len = _dbus_string_get_length (str);
1964 if (!_dbus_string_lengthen (str, n_bytes))
1967 p = _dbus_string_get_data_len (str, old_len, n_bytes);
1969 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1972 if (!CryptGenRandom (hprov, n_bytes, p))
1974 CryptReleaseContext (hprov, 0);
1978 CryptReleaseContext (hprov, 0);
1984 * Gets the temporary files directory by inspecting the environment variables
1985 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
1987 * @returns location of temp directory
1990 _dbus_get_tmpdir(void)
1992 static const char* tmpdir = NULL;
1993 static char buf[1000];
1999 if (!GetTempPathA (sizeof (buf), buf))
2001 _dbus_warn ("GetTempPath failed\n");
2005 /* Drop terminating backslash or slash */
2006 last_slash = _mbsrchr (buf, '\\');
2007 if (last_slash > buf && last_slash[1] == '\0')
2008 last_slash[0] = '\0';
2009 last_slash = _mbsrchr (buf, '/');
2010 if (last_slash > buf && last_slash[1] == '\0')
2011 last_slash[0] = '\0';
2016 _dbus_assert(tmpdir != NULL);
2023 * Deletes the given file.
2025 * @param filename the filename
2026 * @param error error location
2028 * @returns #TRUE if unlink() succeeded
2031 _dbus_delete_file (const DBusString *filename,
2034 const char *filename_c;
2036 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2038 filename_c = _dbus_string_get_const_data (filename);
2040 if (DeleteFileA (filename_c) == 0)
2042 dbus_set_error (error, DBUS_ERROR_FAILED,
2043 "Failed to delete file %s: %s\n",
2044 filename_c, _dbus_strerror_from_errno ());
2052 * replaces the term DBUS_PREFIX in configure_time_path by the
2053 * current dbus installation directory. On unix this function is a noop
2055 * @param configure_time_path
2059 _dbus_replace_install_prefix (const char *configure_time_path)
2062 return configure_time_path;
2064 static char retval[1000];
2065 static char runtime_prefix[1000];
2069 if (!configure_time_path)
2072 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2073 strncmp (configure_time_path, DBUS_PREFIX "/",
2074 strlen (DBUS_PREFIX) + 1))) {
2075 strcat (retval, configure_time_path);
2079 strcpy (retval, runtime_prefix);
2080 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2082 /* Somehow, in some situations, backslashes get collapsed in the string.
2083 * Since windows C library accepts both forward and backslashes as
2084 * path separators, convert all backslashes to forward slashes.
2087 for(i = 0; retval[i] != '\0'; i++) {
2088 if(retval[i] == '\\')
2095 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
2097 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2107 * Backtrace Generator
2109 * Copyright 2004 Eric Poech
2110 * Copyright 2004 Robert Shearman
2112 * This library is free software; you can redistribute it and/or
2113 * modify it under the terms of the GNU Lesser General Public
2114 * License as published by the Free Software Foundation; either
2115 * version 2.1 of the License, or (at your option) any later version.
2117 * This library is distributed in the hope that it will be useful,
2118 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2119 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2120 * Lesser General Public License for more details.
2122 * You should have received a copy of the GNU Lesser General Public
2123 * License along with this library; if not, write to the Free Software
2124 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2128 #include <imagehlp.h>
2131 #define DPRINTF _dbus_warn
2139 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2141 //MAKE_FUNCPTR(StackWalk);
2142 //MAKE_FUNCPTR(SymGetModuleBase);
2143 //MAKE_FUNCPTR(SymFunctionTableAccess);
2144 //MAKE_FUNCPTR(SymInitialize);
2145 //MAKE_FUNCPTR(SymGetSymFromAddr);
2146 //MAKE_FUNCPTR(SymGetModuleInfo);
2147 static BOOL (WINAPI *pStackWalk)(
2151 LPSTACKFRAME StackFrame,
2152 PVOID ContextRecord,
2153 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2154 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2155 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2156 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2159 static DWORD64 (WINAPI *pSymGetModuleBase)(
2163 static PVOID (WINAPI *pSymFunctionTableAccess)(
2168 static DWORD (WINAPI *pSymGetModuleBase)(
2172 static PVOID (WINAPI *pSymFunctionTableAccess)(
2177 static BOOL (WINAPI *pSymInitialize)(
2179 PSTR UserSearchPath,
2182 static BOOL (WINAPI *pSymGetSymFromAddr)(
2185 PDWORD Displacement,
2186 PIMAGEHLP_SYMBOL Symbol
2188 static BOOL (WINAPI *pSymGetModuleInfo)(
2191 PIMAGEHLP_MODULE ModuleInfo
2193 static DWORD (WINAPI *pSymSetOptions)(
2198 static BOOL init_backtrace()
2200 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2202 #define GETFUNC(x) \
2203 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2211 // GETFUNC(StackWalk);
2212 // GETFUNC(SymGetModuleBase);
2213 // GETFUNC(SymFunctionTableAccess);
2214 // GETFUNC(SymInitialize);
2215 // GETFUNC(SymGetSymFromAddr);
2216 // GETFUNC(SymGetModuleInfo);
2220 pStackWalk = (BOOL (WINAPI *)(
2224 LPSTACKFRAME StackFrame,
2225 PVOID ContextRecord,
2226 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2227 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2228 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2229 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2230 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2232 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2235 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2236 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2239 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2241 pSymGetModuleBase=(DWORD (WINAPI *)(
2244 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2245 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2248 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2250 pSymInitialize = (BOOL (WINAPI *)(
2252 PSTR UserSearchPath,
2254 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2255 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2258 PDWORD Displacement,
2259 PIMAGEHLP_SYMBOL Symbol
2260 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2261 pSymGetModuleInfo = (BOOL (WINAPI *)(
2264 PIMAGEHLP_MODULE ModuleInfo
2265 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2266 pSymSetOptions = (DWORD (WINAPI *)(
2268 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2271 pSymSetOptions(SYMOPT_UNDNAME);
2273 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2278 static void dump_backtrace_for_thread(HANDLE hThread)
2285 if (!init_backtrace())
2288 /* can't use this function for current thread as GetThreadContext
2289 * doesn't support getting context from current thread */
2290 if (hThread == GetCurrentThread())
2293 DPRINTF("Backtrace:\n");
2295 _DBUS_ZERO(context);
2296 context.ContextFlags = CONTEXT_FULL;
2298 SuspendThread(hThread);
2300 if (!GetThreadContext(hThread, &context))
2302 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2303 ResumeThread(hThread);
2310 sf.AddrFrame.Offset = context.Ebp;
2311 sf.AddrFrame.Mode = AddrModeFlat;
2312 sf.AddrPC.Offset = context.Eip;
2313 sf.AddrPC.Mode = AddrModeFlat;
2314 dwImageType = IMAGE_FILE_MACHINE_I386;
2316 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2317 sf.AddrPC.Offset = context.Rip;
2318 sf.AddrPC.Mode = AddrModeFlat;
2319 sf.AddrFrame.Offset = context.Rsp;
2320 sf.AddrFrame.Mode = AddrModeFlat;
2321 sf.AddrStack.Offset = context.Rsp;
2322 sf.AddrStack.Mode = AddrModeFlat;
2324 dwImageType = IMAGE_FILE_MACHINE_IA64;
2325 sf.AddrPC.Offset = context.StIIP;
2326 sf.AddrPC.Mode = AddrModeFlat;
2327 sf.AddrFrame.Offset = context.IntSp;
2328 sf.AddrFrame.Mode = AddrModeFlat;
2329 sf.AddrBStore.Offset= context.RsBSP;
2330 sf.AddrBStore.Mode = AddrModeFlat;
2331 sf.AddrStack.Offset = context.IntSp;
2332 sf.AddrStack.Mode = AddrModeFlat;
2334 # error You need to fill in the STACKFRAME structure for your architecture
2337 while (pStackWalk(dwImageType, GetCurrentProcess(),
2338 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2339 pSymGetModuleBase, NULL))
2342 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2343 DWORD dwDisplacement;
2345 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2346 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2348 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2349 &dwDisplacement, pSymbol))
2351 IMAGEHLP_MODULE ModuleInfo;
2352 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2354 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2356 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2358 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2359 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2361 else if (dwDisplacement)
2362 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2364 DPRINTF("4\t%s\n", pSymbol->Name);
2367 ResumeThread(hThread);
2370 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2372 dump_backtrace_for_thread((HANDLE)lpParameter);
2376 /* cannot get valid context from current thread, so we have to execute
2377 * backtrace from another thread */
2378 static void dump_backtrace()
2380 HANDLE hCurrentThread;
2383 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2384 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2385 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2387 WaitForSingleObject(hThread, INFINITE);
2388 CloseHandle(hThread);
2389 CloseHandle(hCurrentThread);
2392 #endif /* asserts or tests enabled */
2395 void _dbus_print_backtrace(void)
2401 void _dbus_print_backtrace(void)
2403 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2407 static dbus_uint32_t fromAscii(char ascii)
2409 if(ascii >= '0' && ascii <= '9')
2411 if(ascii >= 'A' && ascii <= 'F')
2412 return ascii - 'A' + 10;
2413 if(ascii >= 'a' && ascii <= 'f')
2414 return ascii - 'a' + 10;
2418 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2419 dbus_bool_t create_if_not_found,
2426 HW_PROFILE_INFOA info;
2427 char *lpc = &info.szHwProfileGuid[0];
2430 // the hw-profile guid lives long enough
2431 if(!GetCurrentHwProfileA(&info))
2433 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2437 // Form: {12340001-4980-1920-6788-123456789012}
2440 u = ((fromAscii(lpc[0]) << 0) |
2441 (fromAscii(lpc[1]) << 4) |
2442 (fromAscii(lpc[2]) << 8) |
2443 (fromAscii(lpc[3]) << 12) |
2444 (fromAscii(lpc[4]) << 16) |
2445 (fromAscii(lpc[5]) << 20) |
2446 (fromAscii(lpc[6]) << 24) |
2447 (fromAscii(lpc[7]) << 28));
2448 machine_id->as_uint32s[0] = u;
2452 u = ((fromAscii(lpc[0]) << 0) |
2453 (fromAscii(lpc[1]) << 4) |
2454 (fromAscii(lpc[2]) << 8) |
2455 (fromAscii(lpc[3]) << 12) |
2456 (fromAscii(lpc[5]) << 16) |
2457 (fromAscii(lpc[6]) << 20) |
2458 (fromAscii(lpc[7]) << 24) |
2459 (fromAscii(lpc[8]) << 28));
2460 machine_id->as_uint32s[1] = u;
2464 u = ((fromAscii(lpc[0]) << 0) |
2465 (fromAscii(lpc[1]) << 4) |
2466 (fromAscii(lpc[2]) << 8) |
2467 (fromAscii(lpc[3]) << 12) |
2468 (fromAscii(lpc[5]) << 16) |
2469 (fromAscii(lpc[6]) << 20) |
2470 (fromAscii(lpc[7]) << 24) |
2471 (fromAscii(lpc[8]) << 28));
2472 machine_id->as_uint32s[2] = u;
2476 u = ((fromAscii(lpc[0]) << 0) |
2477 (fromAscii(lpc[1]) << 4) |
2478 (fromAscii(lpc[2]) << 8) |
2479 (fromAscii(lpc[3]) << 12) |
2480 (fromAscii(lpc[4]) << 16) |
2481 (fromAscii(lpc[5]) << 20) |
2482 (fromAscii(lpc[6]) << 24) |
2483 (fromAscii(lpc[7]) << 28));
2484 machine_id->as_uint32s[3] = u;
2490 HANDLE _dbus_global_lock (const char *mutexname)
2495 mutex = CreateMutexA( NULL, FALSE, mutexname );
2501 gotMutex = WaitForSingleObject( mutex, INFINITE );
2504 case WAIT_ABANDONED:
2505 ReleaseMutex (mutex);
2506 CloseHandle (mutex);
2517 void _dbus_global_unlock (HANDLE mutex)
2519 ReleaseMutex (mutex);
2520 CloseHandle (mutex);
2523 // for proper cleanup in dbus-daemon
2524 static HANDLE hDBusDaemonMutex = NULL;
2525 static HANDLE hDBusSharedMem = NULL;
2526 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2527 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2528 // sync _dbus_get_autolaunch_address
2529 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2530 // mutex to determine if dbus-daemon is already started (per user)
2531 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2532 // named shm for dbus adress info (per user)
2533 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2536 _dbus_get_install_root_as_hash(DBusString *out)
2538 DBusString install_path;
2540 char path[MAX_PATH*2];
2541 int path_size = sizeof(path);
2543 if (!_dbus_get_install_root(path,path_size))
2546 _dbus_string_init(&install_path);
2547 _dbus_string_append(&install_path,path);
2549 _dbus_string_init(out);
2550 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2552 if (!_dbus_sha_compute (&install_path, out))
2559 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2561 _dbus_string_init(out);
2562 _dbus_string_append(out,basestring);
2568 else if (strcmp(scope,"*install-path") == 0
2569 // for 1.3 compatibility
2570 || strcmp(scope,"install-path") == 0)
2573 if (!_dbus_get_install_root_as_hash(&temp))
2575 _dbus_string_free(out);
2578 _dbus_string_append(out,"-");
2579 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2580 _dbus_string_free(&temp);
2582 else if (strcmp(scope,"*user") == 0)
2584 _dbus_string_append(out,"-");
2585 if (!_dbus_append_user_from_current_process(out))
2587 _dbus_string_free(out);
2591 else if (strlen(scope) > 0)
2593 _dbus_string_append(out,"-");
2594 _dbus_string_append(out,scope);
2601 _dbus_get_shm_name (DBusString *out,const char *scope)
2603 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2607 _dbus_get_mutex_name (DBusString *out,const char *scope)
2609 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2613 _dbus_daemon_is_session_bus_address_published (const char *scope)
2616 DBusString mutex_name;
2618 if (!_dbus_get_mutex_name(&mutex_name,scope))
2620 _dbus_string_free( &mutex_name );
2624 if (hDBusDaemonMutex)
2627 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2628 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2630 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2631 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2632 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2634 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2635 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2638 _dbus_global_unlock( lock );
2640 _dbus_string_free( &mutex_name );
2642 if (hDBusDaemonMutex == NULL)
2644 if (GetLastError() == ERROR_ALREADY_EXISTS)
2646 CloseHandle(hDBusDaemonMutex);
2647 hDBusDaemonMutex = NULL;
2650 // mutex wasn't created before, so return false.
2651 // We leave the mutex name allocated for later reusage
2652 // in _dbus_daemon_publish_session_bus_address.
2657 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2660 char *shared_addr = NULL;
2661 DBusString shm_name;
2662 DBusString mutex_name;
2664 _dbus_assert (address);
2666 if (!_dbus_get_mutex_name(&mutex_name,scope))
2668 _dbus_string_free( &mutex_name );
2672 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2673 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2675 if (!hDBusDaemonMutex)
2677 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2679 _dbus_string_free( &mutex_name );
2681 // acquire the mutex
2682 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2684 _dbus_global_unlock( lock );
2685 CloseHandle( hDBusDaemonMutex );
2689 if (!_dbus_get_shm_name(&shm_name,scope))
2691 _dbus_string_free( &shm_name );
2692 _dbus_global_unlock( lock );
2697 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2698 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2699 _dbus_assert( hDBusSharedMem );
2701 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2703 _dbus_assert (shared_addr);
2705 strcpy( shared_addr, address);
2708 UnmapViewOfFile( shared_addr );
2710 _dbus_global_unlock( lock );
2711 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2713 _dbus_string_free( &shm_name );
2718 _dbus_daemon_unpublish_session_bus_address (void)
2722 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2723 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2725 CloseHandle( hDBusSharedMem );
2727 hDBusSharedMem = NULL;
2729 ReleaseMutex( hDBusDaemonMutex );
2731 CloseHandle( hDBusDaemonMutex );
2733 hDBusDaemonMutex = NULL;
2735 _dbus_global_unlock( lock );
2739 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2747 // we know that dbus-daemon is available, so we wait until shm is available
2748 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2749 if( sharedMem == 0 )
2751 if ( sharedMem != 0)
2755 if( sharedMem == 0 )
2758 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2763 _dbus_string_init( address );
2765 _dbus_string_append( address, shared_addr );
2768 UnmapViewOfFile( shared_addr );
2770 CloseHandle( sharedMem );
2776 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2780 DBusString mutex_name;
2781 dbus_bool_t bRet = TRUE;
2783 if (!_dbus_get_mutex_name(&mutex_name,scope))
2785 _dbus_string_free( &mutex_name );
2789 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2790 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2793 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2794 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2796 ReleaseMutex (daemon);
2797 CloseHandle (daemon);
2799 _dbus_global_unlock( lock );
2800 _dbus_string_free( &mutex_name );
2805 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2808 CloseHandle ( daemon );
2810 _dbus_global_unlock( lock );
2811 _dbus_string_free( &mutex_name );
2817 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2822 PROCESS_INFORMATION pi;
2823 dbus_bool_t retval = FALSE;
2825 char dbus_exe_path[MAX_PATH];
2826 char dbus_args[MAX_PATH * 2];
2827 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2828 DBusString shm_name;
2830 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2832 if (!_dbus_get_shm_name(&shm_name,scope))
2834 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2838 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2840 if (_dbus_daemon_already_runs(address,&shm_name,scope))
2842 _dbus_verbose( "found running dbus daemon at %s\n",
2843 _dbus_string_get_const_data (&shm_name) );
2848 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2850 // Look in directory containing dbus shared library
2852 char dbus_module_path[MAX_PATH];
2855 _dbus_verbose( "did not found dbus daemon executable on default search path, "
2856 "trying path where dbus shared library is located");
2858 hmod = _dbus_win_get_dll_hmodule();
2859 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
2862 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
2868 char *ext_idx = strrchr(dbus_module_path, '\\');
2871 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2873 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
2875 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2876 printf ("or start the daemon manually\n\n");
2879 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
2885 ZeroMemory( &si, sizeof(si) );
2887 ZeroMemory( &pi, sizeof(pi) );
2889 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2891 // argv[i] = "--config-file=bus\\session.conf";
2892 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2893 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2895 CloseHandle (pi.hThread);
2896 CloseHandle (pi.hProcess);
2897 retval = _dbus_get_autolaunch_shm( address, &shm_name );
2898 if (retval == FALSE)
2899 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
2903 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2909 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2911 _DBUS_ASSERT_ERROR_IS_SET (error);
2913 _dbus_global_unlock (mutex);
2919 /** Makes the file readable by every user in the system.
2921 * @param filename the filename
2922 * @param error error location
2923 * @returns #TRUE if the file's permissions could be changed.
2926 _dbus_make_file_world_readable(const DBusString *filename,
2934 * return the relocated DATADIR
2936 * @returns relocated DATADIR static string
2940 _dbus_windows_get_datadir (void)
2942 return _dbus_replace_install_prefix(DBUS_DATADIR);
2946 #define DBUS_DATADIR _dbus_windows_get_datadir ()
2949 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2950 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2953 * Returns the standard directories for a session bus to look for service
2956 * On Windows this should be data directories:
2958 * %CommonProgramFiles%/dbus
2962 * relocated DBUS_DATADIR
2964 * @param dirs the directory list we are returning
2965 * @returns #FALSE on OOM
2969 _dbus_get_standard_session_servicedirs (DBusList **dirs)
2971 const char *common_progs;
2972 DBusString servicedir_path;
2974 if (!_dbus_string_init (&servicedir_path))
2979 /* On Windows CE, we adjust datadir dynamically to installation location. */
2980 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
2982 if (data_dir != NULL)
2984 if (!_dbus_string_append (&servicedir_path, data_dir))
2987 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2993 the code for accessing services requires absolute base pathes
2994 in case DBUS_DATADIR is relative make it absolute
3000 _dbus_string_init_const (&p, DBUS_DATADIR);
3002 if (!_dbus_path_is_absolute (&p))
3004 char install_root[1000];
3005 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3006 if (!_dbus_string_append (&servicedir_path, install_root))
3011 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3014 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3018 common_progs = _dbus_getenv ("CommonProgramFiles");
3020 if (common_progs != NULL)
3022 if (!_dbus_string_append (&servicedir_path, common_progs))
3025 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3029 if (!_dbus_split_paths_and_append (&servicedir_path,
3030 DBUS_STANDARD_SESSION_SERVICEDIR,
3034 _dbus_string_free (&servicedir_path);
3038 _dbus_string_free (&servicedir_path);
3043 * Returns the standard directories for a system bus to look for service
3046 * On UNIX this should be the standard xdg freedesktop.org data directories:
3048 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3054 * On Windows there is no system bus and this function can return nothing.
3056 * @param dirs the directory list we are returning
3057 * @returns #FALSE on OOM
3061 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3067 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
3070 * Atomically increments an integer
3072 * @param atomic pointer to the integer to increment
3073 * @returns the value before incrementing
3077 _dbus_atomic_inc (DBusAtomic *atomic)
3079 // +/- 1 is needed here!
3080 // no volatile argument with mingw
3081 return InterlockedIncrement (&atomic->value) - 1;
3085 * Atomically decrement an integer
3087 * @param atomic pointer to the integer to decrement
3088 * @returns the value before decrementing
3092 _dbus_atomic_dec (DBusAtomic *atomic)
3094 // +/- 1 is needed here!
3095 // no volatile argument with mingw
3096 return InterlockedDecrement (&atomic->value) + 1;
3100 * Atomically get the value of an integer. It may change at any time
3101 * thereafter, so this is mostly only useful for assertions.
3103 * @param atomic pointer to the integer to get
3104 * @returns the value at this moment
3107 _dbus_atomic_get (DBusAtomic *atomic)
3109 /* this is what GLib does, hopefully it's right... */
3111 return atomic->value;
3115 * Called when the bus daemon is signaled to reload its configuration; any
3116 * caches should be nuked. Of course any caches that need explicit reload
3117 * are probably broken, but c'est la vie.
3122 _dbus_flush_caches (void)
3127 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3128 * for Winsock so is abstracted)
3130 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3133 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3135 return errno == WSAEWOULDBLOCK;
3139 * return the absolute path of the dbus installation
3141 * @param s buffer for installation path
3142 * @param len length of buffer
3143 * @returns #FALSE on failure
3146 _dbus_get_install_root(char *prefix, int len)
3148 //To find the prefix, we cut the filename and also \bin\ if present
3152 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3153 if ( pathLength == 0 || GetLastError() != 0 ) {
3157 lastSlash = _mbsrchr(prefix, '\\');
3158 if (lastSlash == NULL) {
3162 //cut off binary name
3165 //cut possible "\\bin"
3167 //this fails if we are in a double-byte system codepage and the
3168 //folder's name happens to end with the *bytes*
3169 //"\\bin"... (I.e. the second byte of some Han character and then
3170 //the Latin "bin", but that is not likely I think...
3171 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3173 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3175 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3182 find config file either from installation or build root according to
3183 the following path layout
3185 bin/dbus-daemon[d].exe
3186 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3187 (the former above is what dbus4win uses, the latter above is
3188 what a "normal" Unix-style "make install" uses)
3191 bin/dbus-daemon[d].exe
3192 bus/<config-file>.conf
3195 _dbus_get_config_file_name(DBusString *config_file, char *s)
3197 char path[MAX_PATH*2];
3198 int path_size = sizeof(path);
3200 if (!_dbus_get_install_root(path,path_size))
3203 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3205 strcat(path,"etc\\");
3207 if (_dbus_file_exists(path))
3209 // find path from executable
3210 if (!_dbus_string_append (config_file, path))
3215 if (!_dbus_get_install_root(path,path_size))
3217 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3219 strcat(path,"etc\\dbus-1\\");
3222 if (_dbus_file_exists(path))
3224 if (!_dbus_string_append (config_file, path))
3229 if (!_dbus_get_install_root(path,path_size))
3231 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3233 strcat(path,"bus\\");
3236 if (_dbus_file_exists(path))
3238 if (!_dbus_string_append (config_file, path))
3247 * Append the absolute path of the system.conf file
3248 * (there is no system bus on Windows so this can just
3249 * return FALSE and print a warning or something)
3251 * @param str the string to append to
3252 * @returns #FALSE if no memory
3255 _dbus_append_system_config_file (DBusString *str)
3257 return _dbus_get_config_file_name(str, "system.conf");
3261 * Append the absolute path of the session.conf file.
3263 * @param str the string to append to
3264 * @returns #FALSE if no memory
3267 _dbus_append_session_config_file (DBusString *str)
3269 return _dbus_get_config_file_name(str, "session.conf");
3272 /* See comment in dbus-sysdeps-unix.c */
3274 _dbus_lookup_session_address (dbus_bool_t *supported,
3275 DBusString *address,
3278 /* Probably fill this in with something based on COM? */
3284 * Appends the directory in which a keyring for the given credentials
3285 * should be stored. The credentials should have either a Windows or
3286 * UNIX user in them. The directory should be an absolute path.
3288 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3289 * be something else, since the dotfile convention is not normal on Windows.
3291 * @param directory string to append directory to
3292 * @param credentials credentials the directory should be for
3294 * @returns #FALSE on no memory
3297 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3298 DBusCredentials *credentials)
3302 const char *homepath;
3303 const char *homedrive;
3305 _dbus_assert (credentials != NULL);
3306 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3308 if (!_dbus_string_init (&homedir))
3311 homedrive = _dbus_getenv("HOMEDRIVE");
3312 if (homedrive != NULL && *homedrive != '\0')
3314 _dbus_string_append(&homedir,homedrive);
3317 homepath = _dbus_getenv("HOMEPATH");
3318 if (homepath != NULL && *homepath != '\0')
3320 _dbus_string_append(&homedir,homepath);
3323 #ifdef DBUS_BUILD_TESTS
3325 const char *override;
3327 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3328 if (override != NULL && *override != '\0')
3330 _dbus_string_set_length (&homedir, 0);
3331 if (!_dbus_string_append (&homedir, override))
3334 _dbus_verbose ("Using fake homedir for testing: %s\n",
3335 _dbus_string_get_const_data (&homedir));
3339 static dbus_bool_t already_warned = FALSE;
3340 if (!already_warned)
3342 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3343 already_warned = TRUE;
3350 /* It's not possible to create a .something directory in Windows CE
3351 using the file explorer. */
3352 #define KEYRING_DIR "dbus-keyrings"
3354 #define KEYRING_DIR ".dbus-keyrings"
3357 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3358 if (!_dbus_concat_dir_and_file (&homedir,
3362 if (!_dbus_string_copy (&homedir, 0,
3363 directory, _dbus_string_get_length (directory))) {
3367 _dbus_string_free (&homedir);
3371 _dbus_string_free (&homedir);
3375 /** Checks if a file exists
3377 * @param file full path to the file
3378 * @returns #TRUE if file exists
3381 _dbus_file_exists (const char *file)
3383 DWORD attributes = GetFileAttributesA (file);
3385 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3392 * A wrapper around strerror() because some platforms
3393 * may be lame and not have strerror().
3395 * @param error_number errno.
3396 * @returns error description.
3399 _dbus_strerror (int error_number)
3407 switch (error_number)
3410 return "Interrupted function call";
3412 return "Permission denied";
3414 return "Bad address";
3416 return "Invalid argument";
3418 return "Too many open files";
3419 case WSAEWOULDBLOCK:
3420 return "Resource temporarily unavailable";
3421 case WSAEINPROGRESS:
3422 return "Operation now in progress";
3424 return "Operation already in progress";
3426 return "Socket operation on nonsocket";
3427 case WSAEDESTADDRREQ:
3428 return "Destination address required";
3430 return "Message too long";
3432 return "Protocol wrong type for socket";
3433 case WSAENOPROTOOPT:
3434 return "Bad protocol option";
3435 case WSAEPROTONOSUPPORT:
3436 return "Protocol not supported";
3437 case WSAESOCKTNOSUPPORT:
3438 return "Socket type not supported";
3440 return "Operation not supported";
3441 case WSAEPFNOSUPPORT:
3442 return "Protocol family not supported";
3443 case WSAEAFNOSUPPORT:
3444 return "Address family not supported by protocol family";
3446 return "Address already in use";
3447 case WSAEADDRNOTAVAIL:
3448 return "Cannot assign requested address";
3450 return "Network is down";
3451 case WSAENETUNREACH:
3452 return "Network is unreachable";
3454 return "Network dropped connection on reset";
3455 case WSAECONNABORTED:
3456 return "Software caused connection abort";
3458 return "Connection reset by peer";
3460 return "No buffer space available";
3462 return "Socket is already connected";
3464 return "Socket is not connected";
3466 return "Cannot send after socket shutdown";
3468 return "Connection timed out";
3469 case WSAECONNREFUSED:
3470 return "Connection refused";
3472 return "Host is down";
3473 case WSAEHOSTUNREACH:
3474 return "No route to host";
3476 return "Too many processes";
3478 return "Graceful shutdown in progress";
3479 case WSATYPE_NOT_FOUND:
3480 return "Class type not found";
3481 case WSAHOST_NOT_FOUND:
3482 return "Host not found";
3484 return "Nonauthoritative host not found";
3485 case WSANO_RECOVERY:
3486 return "This is a nonrecoverable error";
3488 return "Valid name, no data record of requested type";
3489 case WSA_INVALID_HANDLE:
3490 return "Specified event object handle is invalid";
3491 case WSA_INVALID_PARAMETER:
3492 return "One or more parameters are invalid";
3493 case WSA_IO_INCOMPLETE:
3494 return "Overlapped I/O event object not in signaled state";
3495 case WSA_IO_PENDING:
3496 return "Overlapped operations will complete later";
3497 case WSA_NOT_ENOUGH_MEMORY:
3498 return "Insufficient memory available";
3499 case WSA_OPERATION_ABORTED:
3500 return "Overlapped operation aborted";
3501 #ifdef WSAINVALIDPROCTABLE
3503 case WSAINVALIDPROCTABLE:
3504 return "Invalid procedure table from service provider";
3506 #ifdef WSAINVALIDPROVIDER
3508 case WSAINVALIDPROVIDER:
3509 return "Invalid service provider version number";
3511 #ifdef WSAPROVIDERFAILEDINIT
3513 case WSAPROVIDERFAILEDINIT:
3514 return "Unable to initialize a service provider";
3517 case WSASYSCALLFAILURE:
3518 return "System call failure";
3520 msg = strerror (error_number);
3529 * Assigns an error name and message corresponding to a Win32 error
3530 * code to a DBusError. Does nothing if error is #NULL.
3532 * @param error the error.
3533 * @param code the Win32 error code
3536 _dbus_win_set_error_from_win_error (DBusError *error,
3541 /* As we want the English message, use the A API */
3542 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3543 FORMAT_MESSAGE_IGNORE_INSERTS |
3544 FORMAT_MESSAGE_FROM_SYSTEM,
3545 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3546 (LPSTR) &msg, 0, NULL);
3551 msg_copy = dbus_malloc (strlen (msg));
3552 strcpy (msg_copy, msg);
3555 dbus_set_error (error, "win32.error", "%s", msg_copy);
3558 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3562 _dbus_win_warn_win_error (const char *message,
3567 dbus_error_init (&error);
3568 _dbus_win_set_error_from_win_error (&error, code);
3569 _dbus_warn ("%s: %s\n", message, error.message);
3570 dbus_error_free (&error);
3574 * Removes a directory; Directory must be empty
3576 * @param filename directory filename
3577 * @param error initialized error object
3578 * @returns #TRUE on success
3581 _dbus_delete_directory (const DBusString *filename,
3584 const char *filename_c;
3586 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3588 filename_c = _dbus_string_get_const_data (filename);
3590 if (RemoveDirectoryA (filename_c) == 0)
3592 char *emsg = _dbus_win_error_string (GetLastError ());
3593 dbus_set_error (error, _dbus_win_error_from_last_error (),
3594 "Failed to remove directory %s: %s",
3596 _dbus_win_free_error_string (emsg);
3604 * Checks whether the filename is an absolute path
3606 * @param filename the filename
3607 * @returns #TRUE if an absolute path
3610 _dbus_path_is_absolute (const DBusString *filename)
3612 if (_dbus_string_get_length (filename) > 0)
3613 return _dbus_string_get_byte (filename, 1) == ':'
3614 || _dbus_string_get_byte (filename, 0) == '\\'
3615 || _dbus_string_get_byte (filename, 0) == '/';
3620 /** @} end of sysdeps-win */
3621 /* tests in dbus-sysdeps-util.c */