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);
552 len = _vsnprintf (p, bufsize - 1, format, args);
561 * Returns the UTF-16 form of a UTF-8 string. The result should be
562 * freed with dbus_free() when no longer needed.
564 * @param str the UTF-8 string
565 * @param error return location for error code
568 _dbus_win_utf8_to_utf16 (const char *str,
575 _dbus_string_init_const (&s, str);
577 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
579 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
583 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
587 _dbus_win_set_error_from_win_error (error, GetLastError ());
591 retval = dbus_new (wchar_t, n);
595 _DBUS_SET_OOM (error);
599 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
602 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
610 * Returns the UTF-8 form of a UTF-16 string. The result should be
611 * freed with dbus_free() when no longer needed.
613 * @param str the UTF-16 string
614 * @param error return location for error code
617 _dbus_win_utf16_to_utf8 (const wchar_t *str,
623 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
627 _dbus_win_set_error_from_win_error (error, GetLastError ());
631 retval = dbus_malloc (n);
635 _DBUS_SET_OOM (error);
639 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
642 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
654 /************************************************************************
657 ************************************************************************/
660 _dbus_win_account_to_sid (const wchar_t *waccount,
664 dbus_bool_t retval = FALSE;
665 DWORD sid_length, wdomain_length;
673 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
674 NULL, &wdomain_length, &use) &&
675 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
677 _dbus_win_set_error_from_win_error (error, GetLastError ());
681 *ppsid = dbus_malloc (sid_length);
684 _DBUS_SET_OOM (error);
688 wdomain = dbus_new (wchar_t, wdomain_length);
691 _DBUS_SET_OOM (error);
695 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
696 wdomain, &wdomain_length, &use))
698 _dbus_win_set_error_from_win_error (error, GetLastError ());
702 if (!IsValidSid ((PSID) *ppsid))
704 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
722 /** @} end of sysdeps-win */
726 * The only reason this is separate from _dbus_getpid() is to allow it
727 * on Windows for logging but not for other purposes.
729 * @returns process ID to put in log messages
732 _dbus_pid_for_log (void)
734 return _dbus_getpid ();
740 * @param points to sid buffer, need to be freed with LocalFree()
741 * @returns process sid
744 _dbus_getsid(char **sid)
746 HANDLE process_token = INVALID_HANDLE_VALUE;
747 TOKEN_USER *token_user = NULL;
752 if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
754 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
757 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
758 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
759 || (token_user = alloca (n)) == NULL
760 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
762 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
765 psid = token_user->User.Sid;
766 if (!IsValidSid (psid))
768 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
771 if (!ConvertSidToStringSidA (psid, sid))
773 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
780 if (process_token != INVALID_HANDLE_VALUE)
781 CloseHandle (process_token);
783 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
788 /************************************************************************
792 ************************************************************************/
795 * Creates a full-duplex pipe (as in socketpair()).
796 * Sets both ends of the pipe nonblocking.
798 * @todo libdbus only uses this for the debug-pipe server, so in
799 * principle it could be in dbus-sysdeps-util.c, except that
800 * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
801 * debug-pipe server is used.
803 * @param fd1 return location for one end
804 * @param fd2 return location for the other end
805 * @param blocking #TRUE if pipe should be blocking
806 * @param error error return
807 * @returns #FALSE on failure (if error is set)
810 _dbus_full_duplex_pipe (int *fd1,
812 dbus_bool_t blocking,
815 SOCKET temp, socket1 = -1, socket2 = -1;
816 struct sockaddr_in saddr;
819 fd_set read_set, write_set;
823 _dbus_win_startup_winsock ();
825 temp = socket (AF_INET, SOCK_STREAM, 0);
826 if (temp == INVALID_SOCKET)
828 DBUS_SOCKET_SET_ERRNO ();
833 saddr.sin_family = AF_INET;
835 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
837 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
839 DBUS_SOCKET_SET_ERRNO ();
843 if (listen (temp, 1) == SOCKET_ERROR)
845 DBUS_SOCKET_SET_ERRNO ();
849 len = sizeof (saddr);
850 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
852 DBUS_SOCKET_SET_ERRNO ();
856 socket1 = socket (AF_INET, SOCK_STREAM, 0);
857 if (socket1 == INVALID_SOCKET)
859 DBUS_SOCKET_SET_ERRNO ();
863 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
865 DBUS_SOCKET_SET_ERRNO ();
869 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
870 if (socket2 == INVALID_SOCKET)
872 DBUS_SOCKET_SET_ERRNO ();
879 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
881 DBUS_SOCKET_SET_ERRNO ();
886 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
888 DBUS_SOCKET_SET_ERRNO ();
896 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
897 *fd1, socket1, *fd2, socket2);
904 closesocket (socket2);
906 closesocket (socket1);
910 dbus_set_error (error, _dbus_error_from_errno (errno),
911 "Could not setup socket pair: %s",
912 _dbus_strerror_from_errno ());
918 * Wrapper for poll().
920 * @param fds the file descriptors to poll
921 * @param n_fds number of descriptors in the array
922 * @param timeout_milliseconds timeout or -1 for infinite
923 * @returns numbers of fds with revents, or <0 on error
926 _dbus_poll (DBusPollFD *fds,
928 int timeout_milliseconds)
930 #define USE_CHRIS_IMPL 0
934 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
935 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
943 #define DBUS_STACK_WSAEVENTS 256
944 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
945 WSAEVENT *pEvents = NULL;
946 if (n_fds > DBUS_STACK_WSAEVENTS)
947 pEvents = calloc(sizeof(WSAEVENT), n_fds);
949 pEvents = eventsOnStack;
952 #ifdef DBUS_ENABLE_VERBOSE_MODE
954 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
955 for (i = 0; i < n_fds; i++)
957 static dbus_bool_t warned = FALSE;
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 static dbus_bool_t warned = FALSE;
1096 DBusPollFD *fdp = &fds[i];
1099 if (fdp->events & _DBUS_POLLIN)
1100 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1102 if (fdp->events & _DBUS_POLLOUT)
1103 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1105 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1107 // FIXME: more robust code for long msg
1108 // create on heap when msg[] becomes too small
1109 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1111 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1115 msgp += sprintf (msgp, "\n");
1116 _dbus_verbose ("%s",msg);
1118 for (i = 0; i < n_fds; i++)
1120 DBusPollFD *fdp = &fds[i];
1122 if (fdp->events & _DBUS_POLLIN)
1123 FD_SET (fdp->fd, &read_set);
1125 if (fdp->events & _DBUS_POLLOUT)
1126 FD_SET (fdp->fd, &write_set);
1128 FD_SET (fdp->fd, &err_set);
1130 max_fd = MAX (max_fd, fdp->fd);
1133 // Avoid random lockups with send(), for lack of a better solution so far
1134 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1135 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1137 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1139 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1141 DBUS_SOCKET_SET_ERRNO ();
1142 if (errno != WSAEWOULDBLOCK)
1143 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1145 else if (ready == 0)
1146 _dbus_verbose ("select: = 0\n");
1150 #ifdef DBUS_ENABLE_VERBOSE_MODE
1152 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1154 for (i = 0; i < n_fds; i++)
1156 DBusPollFD *fdp = &fds[i];
1158 if (FD_ISSET (fdp->fd, &read_set))
1159 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1161 if (FD_ISSET (fdp->fd, &write_set))
1162 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1164 if (FD_ISSET (fdp->fd, &err_set))
1165 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1167 msgp += sprintf (msgp, "\n");
1168 _dbus_verbose ("%s",msg);
1171 for (i = 0; i < n_fds; i++)
1173 DBusPollFD *fdp = &fds[i];
1177 if (FD_ISSET (fdp->fd, &read_set))
1178 fdp->revents |= _DBUS_POLLIN;
1180 if (FD_ISSET (fdp->fd, &write_set))
1181 fdp->revents |= _DBUS_POLLOUT;
1183 if (FD_ISSET (fdp->fd, &err_set))
1184 fdp->revents |= _DBUS_POLLERR;
1188 #endif /* USE_CHRIS_IMPL */
1194 /******************************************************************************
1196 Original CVS version of dbus-sysdeps.c
1198 ******************************************************************************/
1199 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1200 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1202 * Copyright (C) 2002, 2003 Red Hat, Inc.
1203 * Copyright (C) 2003 CodeFactory AB
1204 * Copyright (C) 2005 Novell, Inc.
1206 * Licensed under the Academic Free License version 2.1
1208 * This program is free software; you can redistribute it and/or modify
1209 * it under the terms of the GNU General Public License as published by
1210 * the Free Software Foundation; either version 2 of the License, or
1211 * (at your option) any later version.
1213 * This program is distributed in the hope that it will be useful,
1214 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1215 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1216 * GNU General Public License for more details.
1218 * You should have received a copy of the GNU General Public License
1219 * along with this program; if not, write to the Free Software
1220 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1226 * Exit the process, returning the given value.
1228 * @param code the exit code
1231 _dbus_exit (int code)
1237 * Creates a socket and connects to a socket at the given host
1238 * and port. The connection fd is returned, and is set up as
1241 * @param host the host name to connect to
1242 * @param port the port to connect to
1243 * @param family the address family to listen on, NULL for all
1244 * @param error return location for error code
1245 * @returns connection file descriptor or -1 on error
1248 _dbus_connect_tcp_socket (const char *host,
1253 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1257 _dbus_connect_tcp_socket_with_nonce (const char *host,
1260 const char *noncefile,
1264 struct addrinfo hints;
1265 struct addrinfo *ai, *tmp;
1267 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1269 _dbus_win_startup_winsock ();
1274 hints.ai_family = AF_UNSPEC;
1275 else if (!strcmp(family, "ipv4"))
1276 hints.ai_family = AF_INET;
1277 else if (!strcmp(family, "ipv6"))
1278 hints.ai_family = AF_INET6;
1281 dbus_set_error (error,
1282 DBUS_ERROR_INVALID_ARGS,
1283 "Unknown address family %s", family);
1286 hints.ai_protocol = IPPROTO_TCP;
1287 hints.ai_socktype = SOCK_STREAM;
1288 #ifdef AI_ADDRCONFIG
1289 hints.ai_flags = AI_ADDRCONFIG;
1294 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1296 dbus_set_error (error,
1297 _dbus_error_from_errno (res),
1298 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1299 host, port, _dbus_strerror(res), res);
1306 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1308 DBUS_SOCKET_SET_ERRNO ();
1309 dbus_set_error (error,
1310 _dbus_error_from_errno (errno),
1311 "Failed to open socket: %s",
1312 _dbus_strerror_from_errno ());
1316 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1318 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1320 DBUS_SOCKET_SET_ERRNO ();
1333 dbus_set_error (error,
1334 _dbus_error_from_errno (errno),
1335 "Failed to connect to socket \"%s:%s\" %s",
1336 host, port, _dbus_strerror_from_errno ());
1340 if (noncefile != NULL)
1342 DBusString noncefileStr;
1344 if (!_dbus_string_init (&noncefileStr) ||
1345 !_dbus_string_append(&noncefileStr, noncefile))
1348 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1352 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1354 _dbus_string_free (&noncefileStr);
1363 _dbus_fd_set_close_on_exec (fd);
1365 if (!_dbus_set_fd_nonblocking (fd, error))
1375 * Creates a socket and binds it to the given path, then listens on
1376 * the socket. The socket is set to be nonblocking. In case of port=0
1377 * a random free port is used and returned in the port parameter.
1378 * If inaddr_any is specified, the hostname is ignored.
1380 * @param host the host name to listen on
1381 * @param port the port to listen on, if zero a free port will be used
1382 * @param family the address family to listen on, NULL for all
1383 * @param retport string to return the actual port listened on
1384 * @param fds_p location to store returned file descriptors
1385 * @param error return location for errors
1386 * @returns the number of listening file descriptors or -1 on error
1390 _dbus_listen_tcp_socket (const char *host,
1393 DBusString *retport,
1397 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1398 struct addrinfo hints;
1399 struct addrinfo *ai, *tmp;
1401 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1402 //That's required for family == IPv6(which is the default on Vista if family is not given)
1403 //So we use our own union instead of sockaddr_gen:
1406 struct sockaddr Address;
1407 struct sockaddr_in AddressIn;
1408 struct sockaddr_in6 AddressIn6;
1412 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1414 _dbus_win_startup_winsock ();
1419 hints.ai_family = AF_UNSPEC;
1420 else if (!strcmp(family, "ipv4"))
1421 hints.ai_family = AF_INET;
1422 else if (!strcmp(family, "ipv6"))
1423 hints.ai_family = AF_INET6;
1426 dbus_set_error (error,
1427 DBUS_ERROR_INVALID_ARGS,
1428 "Unknown address family %s", family);
1432 hints.ai_protocol = IPPROTO_TCP;
1433 hints.ai_socktype = SOCK_STREAM;
1434 #ifdef AI_ADDRCONFIG
1435 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1437 hints.ai_flags = AI_PASSIVE;
1440 redo_lookup_with_port:
1441 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1443 dbus_set_error (error,
1444 _dbus_error_from_errno (res),
1445 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1446 host ? host : "*", port, _dbus_strerror(res), res);
1453 int fd = -1, *newlisten_fd;
1454 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1456 DBUS_SOCKET_SET_ERRNO ();
1457 dbus_set_error (error,
1458 _dbus_error_from_errno (errno),
1459 "Failed to open socket: %s",
1460 _dbus_strerror_from_errno ());
1463 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1465 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1467 DBUS_SOCKET_SET_ERRNO ();
1468 dbus_set_error (error, _dbus_error_from_errno (errno),
1469 "Failed to bind socket \"%s:%s\": %s",
1470 host ? host : "*", port, _dbus_strerror_from_errno ());
1475 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1477 DBUS_SOCKET_SET_ERRNO ();
1478 dbus_set_error (error, _dbus_error_from_errno (errno),
1479 "Failed to listen on socket \"%s:%s\": %s",
1480 host ? host : "*", port, _dbus_strerror_from_errno ());
1485 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1489 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1490 "Failed to allocate file handle array");
1493 listen_fd = newlisten_fd;
1494 listen_fd[nlisten_fd] = fd;
1497 if (!_dbus_string_get_length(retport))
1499 /* If the user didn't specify a port, or used 0, then
1500 the kernel chooses a port. After the first address
1501 is bound to, we need to force all remaining addresses
1502 to use the same port */
1503 if (!port || !strcmp(port, "0"))
1505 mysockaddr_gen addr;
1506 socklen_t addrlen = sizeof(addr);
1509 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1511 DBUS_SOCKET_SET_ERRNO ();
1512 dbus_set_error (error, _dbus_error_from_errno (errno),
1513 "Failed to resolve port \"%s:%s\": %s",
1514 host ? host : "*", port, _dbus_strerror_from_errno());
1517 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1518 if (!_dbus_string_append(retport, portbuf))
1520 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1524 /* Release current address list & redo lookup */
1525 port = _dbus_string_get_const_data(retport);
1527 goto redo_lookup_with_port;
1531 if (!_dbus_string_append(retport, port))
1533 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1546 _dbus_win_set_errno (WSAEADDRINUSE);
1547 dbus_set_error (error, _dbus_error_from_errno (errno),
1548 "Failed to bind socket \"%s:%s\": %s",
1549 host ? host : "*", port, _dbus_strerror_from_errno ());
1553 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1555 for (i = 0 ; i < nlisten_fd ; i++)
1557 _dbus_fd_set_close_on_exec (listen_fd[i]);
1558 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1571 for (i = 0 ; i < nlisten_fd ; i++)
1572 closesocket (listen_fd[i]);
1573 dbus_free(listen_fd);
1579 * Accepts a connection on a listening socket.
1580 * Handles EINTR for you.
1582 * @param listen_fd the listen file descriptor
1583 * @returns the connection fd of the client, or -1 on error
1586 _dbus_accept (int listen_fd)
1591 client_fd = accept (listen_fd, NULL, NULL);
1593 if (DBUS_SOCKET_IS_INVALID (client_fd))
1595 DBUS_SOCKET_SET_ERRNO ();
1600 _dbus_verbose ("client fd %d accepted\n", client_fd);
1609 _dbus_send_credentials_socket (int handle,
1612 /* FIXME: for the session bus credentials shouldn't matter (?), but
1613 * for the system bus they are presumably essential. A rough outline
1614 * of a way to implement the credential transfer would be this:
1616 * client waits to *read* a byte.
1618 * server creates a named pipe with a random name, sends a byte
1619 * contining its length, and its name.
1621 * client reads the name, connects to it (using Win32 API).
1623 * server waits for connection to the named pipe, then calls
1624 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1625 * calls RevertToSelf(), closes its handles to the named pipe, and
1626 * is done. (Maybe there is some other way to get the SID of a named
1627 * pipe client without having to use impersonation?)
1629 * client closes its handles and is done.
1631 * Ralf: Why not sending credentials over the given this connection ?
1632 * Using named pipes makes it impossible to be connected from a unix client.
1638 _dbus_string_init_const_len (&buf, "\0", 1);
1640 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1642 if (bytes_written < 0 && errno == EINTR)
1645 if (bytes_written < 0)
1647 dbus_set_error (error, _dbus_error_from_errno (errno),
1648 "Failed to write credentials byte: %s",
1649 _dbus_strerror_from_errno ());
1652 else if (bytes_written == 0)
1654 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1655 "wrote zero bytes writing credentials byte");
1660 _dbus_assert (bytes_written == 1);
1661 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1668 * Reads a single byte which must be nul (an error occurs otherwise),
1669 * and reads unix credentials if available. Fills in pid/uid/gid with
1670 * -1 if no credentials are available. Return value indicates whether
1671 * a byte was read, not whether we got valid credentials. On some
1672 * systems, such as Linux, reading/writing the byte isn't actually
1673 * required, but we do it anyway just to avoid multiple codepaths.
1675 * Fails if no byte is available, so you must select() first.
1677 * The point of the byte is that on some systems we have to
1678 * use sendmsg()/recvmsg() to transmit credentials.
1680 * @param client_fd the client file descriptor
1681 * @param credentials struct to fill with credentials of client
1682 * @param error location to store error code
1683 * @returns #TRUE on success
1686 _dbus_read_credentials_socket (int handle,
1687 DBusCredentials *credentials,
1693 // could fail due too OOM
1694 if (_dbus_string_init(&buf))
1696 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1699 _dbus_verbose("got one zero byte from server");
1701 _dbus_string_free(&buf);
1704 _dbus_credentials_add_from_current_process (credentials);
1705 _dbus_verbose("FIXME: get faked credentials from current process");
1711 * Checks to make sure the given directory is
1712 * private to the user
1714 * @param dir the name of the directory
1715 * @param error error return
1716 * @returns #FALSE on failure
1719 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1722 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1728 * Appends the given filename to the given directory.
1730 * @todo it might be cute to collapse multiple '/' such as "foo//"
1733 * @param dir the directory name
1734 * @param next_component the filename
1735 * @returns #TRUE on success
1738 _dbus_concat_dir_and_file (DBusString *dir,
1739 const DBusString *next_component)
1741 dbus_bool_t dir_ends_in_slash;
1742 dbus_bool_t file_starts_with_slash;
1744 if (_dbus_string_get_length (dir) == 0 ||
1745 _dbus_string_get_length (next_component) == 0)
1749 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1750 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1752 file_starts_with_slash =
1753 ('/' == _dbus_string_get_byte (next_component, 0) ||
1754 '\\' == _dbus_string_get_byte (next_component, 0));
1756 if (dir_ends_in_slash && file_starts_with_slash)
1758 _dbus_string_shorten (dir, 1);
1760 else if (!(dir_ends_in_slash || file_starts_with_slash))
1762 if (!_dbus_string_append_byte (dir, '\\'))
1766 return _dbus_string_copy (next_component, 0, dir,
1767 _dbus_string_get_length (dir));
1770 /*---------------- DBusCredentials ----------------------------------*/
1773 * Adds the credentials corresponding to the given username.
1775 * @param credentials credentials to fill in
1776 * @param username the username
1777 * @returns #TRUE if the username existed and we got some credentials
1780 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1781 const DBusString *username)
1783 return _dbus_credentials_add_windows_sid (credentials,
1784 _dbus_string_get_const_data(username));
1788 * Adds the credentials of the current process to the
1789 * passed-in credentials object.
1791 * @param credentials credentials to add to
1792 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1796 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1798 dbus_bool_t retval = FALSE;
1801 if (!_dbus_getsid(&sid))
1804 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1807 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1822 * Append to the string the identity we would like to have when we
1823 * authenticate, on UNIX this is the current process UID and on
1824 * Windows something else, probably a Windows SID string. No escaping
1825 * is required, that is done in dbus-auth.c. The username here
1826 * need not be anything human-readable, it can be the machine-readable
1827 * form i.e. a user id.
1829 * @param str the string to append to
1830 * @returns #FALSE on no memory
1831 * @todo to which class belongs this
1834 _dbus_append_user_from_current_process (DBusString *str)
1836 dbus_bool_t retval = FALSE;
1839 if (!_dbus_getsid(&sid))
1842 retval = _dbus_string_append (str,sid);
1849 * Gets our process ID
1850 * @returns process ID
1855 return GetCurrentProcessId ();
1858 /** nanoseconds in a second */
1859 #define NANOSECONDS_PER_SECOND 1000000000
1860 /** microseconds in a second */
1861 #define MICROSECONDS_PER_SECOND 1000000
1862 /** milliseconds in a second */
1863 #define MILLISECONDS_PER_SECOND 1000
1864 /** nanoseconds in a millisecond */
1865 #define NANOSECONDS_PER_MILLISECOND 1000000
1866 /** microseconds in a millisecond */
1867 #define MICROSECONDS_PER_MILLISECOND 1000
1870 * Sleeps the given number of milliseconds.
1871 * @param milliseconds number of milliseconds
1874 _dbus_sleep_milliseconds (int milliseconds)
1876 Sleep (milliseconds);
1881 * Get current time, as in gettimeofday().
1883 * @param tv_sec return location for number of seconds
1884 * @param tv_usec return location for number of microseconds
1887 _dbus_get_current_time (long *tv_sec,
1891 dbus_uint64_t time64;
1893 GetSystemTimeAsFileTime (&ft);
1895 memcpy (&time64, &ft, sizeof (time64));
1897 /* Convert from 100s of nanoseconds since 1601-01-01
1898 * to Unix epoch. Yes, this is Y2038 unsafe.
1900 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1904 *tv_sec = time64 / 1000000;
1907 *tv_usec = time64 % 1000000;
1912 * signal (SIGPIPE, SIG_IGN);
1915 _dbus_disable_sigpipe (void)
1920 * Creates a directory; succeeds if the directory
1921 * is created or already existed.
1923 * @param filename directory filename
1924 * @param error initialized error object
1925 * @returns #TRUE on success
1928 _dbus_create_directory (const DBusString *filename,
1931 const char *filename_c;
1933 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1935 filename_c = _dbus_string_get_const_data (filename);
1937 if (!CreateDirectoryA (filename_c, NULL))
1939 if (GetLastError () == ERROR_ALREADY_EXISTS)
1942 dbus_set_error (error, DBUS_ERROR_FAILED,
1943 "Failed to create directory %s: %s\n",
1944 filename_c, _dbus_strerror_from_errno ());
1953 * Generates the given number of random bytes,
1954 * using the best mechanism we can come up with.
1956 * @param str the string
1957 * @param n_bytes the number of random bytes to append to string
1958 * @returns #TRUE on success, #FALSE if no memory
1961 _dbus_generate_random_bytes (DBusString *str,
1968 old_len = _dbus_string_get_length (str);
1970 if (!_dbus_string_lengthen (str, n_bytes))
1973 p = _dbus_string_get_data_len (str, old_len, n_bytes);
1975 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1978 if (!CryptGenRandom (hprov, n_bytes, p))
1980 CryptReleaseContext (hprov, 0);
1984 CryptReleaseContext (hprov, 0);
1990 * Gets the temporary files directory by inspecting the environment variables
1991 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
1993 * @returns location of temp directory
1996 _dbus_get_tmpdir(void)
1998 static const char* tmpdir = NULL;
1999 static char buf[1000];
2005 if (!GetTempPathA (sizeof (buf), buf))
2007 _dbus_warn ("GetTempPath failed\n");
2011 /* Drop terminating backslash or slash */
2012 last_slash = _mbsrchr (buf, '\\');
2013 if (last_slash > buf && last_slash[1] == '\0')
2014 last_slash[0] = '\0';
2015 last_slash = _mbsrchr (buf, '/');
2016 if (last_slash > buf && last_slash[1] == '\0')
2017 last_slash[0] = '\0';
2022 _dbus_assert(tmpdir != NULL);
2029 * Deletes the given file.
2031 * @param filename the filename
2032 * @param error error location
2034 * @returns #TRUE if unlink() succeeded
2037 _dbus_delete_file (const DBusString *filename,
2040 const char *filename_c;
2042 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2044 filename_c = _dbus_string_get_const_data (filename);
2046 if (DeleteFileA (filename_c) == 0)
2048 dbus_set_error (error, DBUS_ERROR_FAILED,
2049 "Failed to delete file %s: %s\n",
2050 filename_c, _dbus_strerror_from_errno ());
2058 * replaces the term DBUS_PREFIX in configure_time_path by the
2059 * current dbus installation directory. On unix this function is a noop
2061 * @param configure_time_path
2065 _dbus_replace_install_prefix (const char *configure_time_path)
2068 return configure_time_path;
2070 static char retval[1000];
2071 static char runtime_prefix[1000];
2075 if (!configure_time_path)
2078 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2079 strncmp (configure_time_path, DBUS_PREFIX "/",
2080 strlen (DBUS_PREFIX) + 1))) {
2081 strcat (retval, configure_time_path);
2085 strcpy (retval, runtime_prefix);
2086 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2088 /* Somehow, in some situations, backslashes get collapsed in the string.
2089 * Since windows C library accepts both forward and backslashes as
2090 * path separators, convert all backslashes to forward slashes.
2093 for(i = 0; retval[i] != '\0'; i++) {
2094 if(retval[i] == '\\')
2101 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
2103 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2113 * Backtrace Generator
2115 * Copyright 2004 Eric Poech
2116 * Copyright 2004 Robert Shearman
2118 * This library is free software; you can redistribute it and/or
2119 * modify it under the terms of the GNU Lesser General Public
2120 * License as published by the Free Software Foundation; either
2121 * version 2.1 of the License, or (at your option) any later version.
2123 * This library is distributed in the hope that it will be useful,
2124 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2125 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2126 * Lesser General Public License for more details.
2128 * You should have received a copy of the GNU Lesser General Public
2129 * License along with this library; if not, write to the Free Software
2130 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2134 #include <imagehlp.h>
2137 #define DPRINTF _dbus_warn
2145 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2147 //MAKE_FUNCPTR(StackWalk);
2148 //MAKE_FUNCPTR(SymGetModuleBase);
2149 //MAKE_FUNCPTR(SymFunctionTableAccess);
2150 //MAKE_FUNCPTR(SymInitialize);
2151 //MAKE_FUNCPTR(SymGetSymFromAddr);
2152 //MAKE_FUNCPTR(SymGetModuleInfo);
2153 static BOOL (WINAPI *pStackWalk)(
2157 LPSTACKFRAME StackFrame,
2158 PVOID ContextRecord,
2159 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2160 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2161 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2162 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2165 static DWORD64 (WINAPI *pSymGetModuleBase)(
2169 static PVOID (WINAPI *pSymFunctionTableAccess)(
2174 static DWORD (WINAPI *pSymGetModuleBase)(
2178 static PVOID (WINAPI *pSymFunctionTableAccess)(
2183 static BOOL (WINAPI *pSymInitialize)(
2185 PSTR UserSearchPath,
2188 static BOOL (WINAPI *pSymGetSymFromAddr)(
2191 PDWORD Displacement,
2192 PIMAGEHLP_SYMBOL Symbol
2194 static BOOL (WINAPI *pSymGetModuleInfo)(
2197 PIMAGEHLP_MODULE ModuleInfo
2199 static DWORD (WINAPI *pSymSetOptions)(
2204 static BOOL init_backtrace()
2206 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2208 #define GETFUNC(x) \
2209 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2217 // GETFUNC(StackWalk);
2218 // GETFUNC(SymGetModuleBase);
2219 // GETFUNC(SymFunctionTableAccess);
2220 // GETFUNC(SymInitialize);
2221 // GETFUNC(SymGetSymFromAddr);
2222 // GETFUNC(SymGetModuleInfo);
2226 pStackWalk = (BOOL (WINAPI *)(
2230 LPSTACKFRAME StackFrame,
2231 PVOID ContextRecord,
2232 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2233 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2234 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2235 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2236 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2238 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2241 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2242 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2245 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2247 pSymGetModuleBase=(DWORD (WINAPI *)(
2250 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2251 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2254 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2256 pSymInitialize = (BOOL (WINAPI *)(
2258 PSTR UserSearchPath,
2260 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2261 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2264 PDWORD Displacement,
2265 PIMAGEHLP_SYMBOL Symbol
2266 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2267 pSymGetModuleInfo = (BOOL (WINAPI *)(
2270 PIMAGEHLP_MODULE ModuleInfo
2271 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2272 pSymSetOptions = (DWORD (WINAPI *)(
2274 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2277 pSymSetOptions(SYMOPT_UNDNAME);
2279 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2284 static void dump_backtrace_for_thread(HANDLE hThread)
2291 if (!init_backtrace())
2294 /* can't use this function for current thread as GetThreadContext
2295 * doesn't support getting context from current thread */
2296 if (hThread == GetCurrentThread())
2299 DPRINTF("Backtrace:\n");
2301 _DBUS_ZERO(context);
2302 context.ContextFlags = CONTEXT_FULL;
2304 SuspendThread(hThread);
2306 if (!GetThreadContext(hThread, &context))
2308 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2309 ResumeThread(hThread);
2316 sf.AddrFrame.Offset = context.Ebp;
2317 sf.AddrFrame.Mode = AddrModeFlat;
2318 sf.AddrPC.Offset = context.Eip;
2319 sf.AddrPC.Mode = AddrModeFlat;
2320 dwImageType = IMAGE_FILE_MACHINE_I386;
2322 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2323 sf.AddrPC.Offset = context.Rip;
2324 sf.AddrPC.Mode = AddrModeFlat;
2325 sf.AddrFrame.Offset = context.Rsp;
2326 sf.AddrFrame.Mode = AddrModeFlat;
2327 sf.AddrStack.Offset = context.Rsp;
2328 sf.AddrStack.Mode = AddrModeFlat;
2330 dwImageType = IMAGE_FILE_MACHINE_IA64;
2331 sf.AddrPC.Offset = context.StIIP;
2332 sf.AddrPC.Mode = AddrModeFlat;
2333 sf.AddrFrame.Offset = context.IntSp;
2334 sf.AddrFrame.Mode = AddrModeFlat;
2335 sf.AddrBStore.Offset= context.RsBSP;
2336 sf.AddrBStore.Mode = AddrModeFlat;
2337 sf.AddrStack.Offset = context.IntSp;
2338 sf.AddrStack.Mode = AddrModeFlat;
2340 # error You need to fill in the STACKFRAME structure for your architecture
2343 while (pStackWalk(dwImageType, GetCurrentProcess(),
2344 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2345 pSymGetModuleBase, NULL))
2348 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2349 DWORD dwDisplacement;
2351 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2352 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2354 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2355 &dwDisplacement, pSymbol))
2357 IMAGEHLP_MODULE ModuleInfo;
2358 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2360 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2362 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2364 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2365 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2367 else if (dwDisplacement)
2368 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2370 DPRINTF("4\t%s\n", pSymbol->Name);
2373 ResumeThread(hThread);
2376 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2378 dump_backtrace_for_thread((HANDLE)lpParameter);
2382 /* cannot get valid context from current thread, so we have to execute
2383 * backtrace from another thread */
2384 static void dump_backtrace()
2386 HANDLE hCurrentThread;
2389 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2390 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2391 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2393 WaitForSingleObject(hThread, INFINITE);
2394 CloseHandle(hThread);
2395 CloseHandle(hCurrentThread);
2398 #endif /* asserts or tests enabled */
2401 void _dbus_print_backtrace(void)
2407 void _dbus_print_backtrace(void)
2409 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2413 static dbus_uint32_t fromAscii(char ascii)
2415 if(ascii >= '0' && ascii <= '9')
2417 if(ascii >= 'A' && ascii <= 'F')
2418 return ascii - 'A' + 10;
2419 if(ascii >= 'a' && ascii <= 'f')
2420 return ascii - 'a' + 10;
2424 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2425 dbus_bool_t create_if_not_found,
2432 HW_PROFILE_INFOA info;
2433 char *lpc = &info.szHwProfileGuid[0];
2436 // the hw-profile guid lives long enough
2437 if(!GetCurrentHwProfileA(&info))
2439 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2443 // Form: {12340001-4980-1920-6788-123456789012}
2446 u = ((fromAscii(lpc[0]) << 0) |
2447 (fromAscii(lpc[1]) << 4) |
2448 (fromAscii(lpc[2]) << 8) |
2449 (fromAscii(lpc[3]) << 12) |
2450 (fromAscii(lpc[4]) << 16) |
2451 (fromAscii(lpc[5]) << 20) |
2452 (fromAscii(lpc[6]) << 24) |
2453 (fromAscii(lpc[7]) << 28));
2454 machine_id->as_uint32s[0] = u;
2458 u = ((fromAscii(lpc[0]) << 0) |
2459 (fromAscii(lpc[1]) << 4) |
2460 (fromAscii(lpc[2]) << 8) |
2461 (fromAscii(lpc[3]) << 12) |
2462 (fromAscii(lpc[5]) << 16) |
2463 (fromAscii(lpc[6]) << 20) |
2464 (fromAscii(lpc[7]) << 24) |
2465 (fromAscii(lpc[8]) << 28));
2466 machine_id->as_uint32s[1] = u;
2470 u = ((fromAscii(lpc[0]) << 0) |
2471 (fromAscii(lpc[1]) << 4) |
2472 (fromAscii(lpc[2]) << 8) |
2473 (fromAscii(lpc[3]) << 12) |
2474 (fromAscii(lpc[5]) << 16) |
2475 (fromAscii(lpc[6]) << 20) |
2476 (fromAscii(lpc[7]) << 24) |
2477 (fromAscii(lpc[8]) << 28));
2478 machine_id->as_uint32s[2] = u;
2482 u = ((fromAscii(lpc[0]) << 0) |
2483 (fromAscii(lpc[1]) << 4) |
2484 (fromAscii(lpc[2]) << 8) |
2485 (fromAscii(lpc[3]) << 12) |
2486 (fromAscii(lpc[4]) << 16) |
2487 (fromAscii(lpc[5]) << 20) |
2488 (fromAscii(lpc[6]) << 24) |
2489 (fromAscii(lpc[7]) << 28));
2490 machine_id->as_uint32s[3] = u;
2496 HANDLE _dbus_global_lock (const char *mutexname)
2501 mutex = CreateMutexA( NULL, FALSE, mutexname );
2507 gotMutex = WaitForSingleObject( mutex, INFINITE );
2510 case WAIT_ABANDONED:
2511 ReleaseMutex (mutex);
2512 CloseHandle (mutex);
2523 void _dbus_global_unlock (HANDLE mutex)
2525 ReleaseMutex (mutex);
2526 CloseHandle (mutex);
2529 // for proper cleanup in dbus-daemon
2530 static HANDLE hDBusDaemonMutex = NULL;
2531 static HANDLE hDBusSharedMem = NULL;
2532 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2533 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2534 // sync _dbus_get_autolaunch_address
2535 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2536 // mutex to determine if dbus-daemon is already started (per user)
2537 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2538 // named shm for dbus adress info (per user)
2539 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2542 _dbus_get_install_root_as_hash(DBusString *out)
2544 DBusString install_path;
2546 char path[MAX_PATH*2];
2547 int path_size = sizeof(path);
2549 if (!_dbus_get_install_root(path,path_size))
2552 _dbus_string_init(&install_path);
2553 _dbus_string_append(&install_path,path);
2555 _dbus_string_init(out);
2556 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2558 if (!_dbus_sha_compute (&install_path, out))
2565 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2567 _dbus_string_init(out);
2568 _dbus_string_append(out,basestring);
2574 else if (strcmp(scope,"*install-path") == 0
2575 // for 1.3 compatibility
2576 || strcmp(scope,"install-path") == 0)
2579 if (!_dbus_get_install_root_as_hash(&temp))
2581 _dbus_string_free(out);
2584 _dbus_string_append(out,"-");
2585 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2586 _dbus_string_free(&temp);
2588 else if (strcmp(scope,"*user") == 0)
2590 _dbus_string_append(out,"-");
2591 if (!_dbus_append_user_from_current_process(out))
2593 _dbus_string_free(out);
2597 else if (strlen(scope) > 0)
2599 _dbus_string_append(out,"-");
2600 _dbus_string_append(out,scope);
2607 _dbus_get_shm_name (DBusString *out,const char *scope)
2609 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2613 _dbus_get_mutex_name (DBusString *out,const char *scope)
2615 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2619 _dbus_daemon_is_session_bus_address_published (const char *scope)
2623 DBusString mutex_name;
2626 if (!_dbus_get_mutex_name(&mutex_name,scope))
2628 _dbus_string_free( &mutex_name );
2632 if (hDBusDaemonMutex)
2635 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2636 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2638 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2639 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2640 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2642 _dbus_global_unlock( lock );
2644 _dbus_string_free( &mutex_name );
2646 if (hDBusDaemonMutex == NULL)
2648 if (GetLastError() == ERROR_ALREADY_EXISTS)
2650 CloseHandle(hDBusDaemonMutex);
2651 hDBusDaemonMutex = NULL;
2654 // mutex wasn't created before, so return false.
2655 // We leave the mutex name allocated for later reusage
2656 // in _dbus_daemon_publish_session_bus_address.
2661 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2664 char *shared_addr = NULL;
2666 char addressInfo[1024];
2667 DBusString shm_name;
2668 DBusString mutex_name;
2670 _dbus_assert (address);
2672 if (!_dbus_get_mutex_name(&mutex_name,scope))
2674 _dbus_string_free( &mutex_name );
2678 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2679 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2681 if (!hDBusDaemonMutex)
2683 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2685 _dbus_string_free( &mutex_name );
2687 if (!_dbus_get_shm_name(&shm_name,scope))
2689 _dbus_string_free( &shm_name );
2690 _dbus_global_unlock( lock );
2695 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2696 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2697 _dbus_assert( hDBusSharedMem );
2699 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2701 _dbus_assert (shared_addr);
2703 strcpy( shared_addr, address);
2706 UnmapViewOfFile( shared_addr );
2708 _dbus_global_unlock( lock );
2709 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2711 _dbus_string_free( &shm_name );
2716 _dbus_daemon_unpublish_session_bus_address (void)
2720 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2721 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2723 CloseHandle( hDBusSharedMem );
2725 hDBusSharedMem = NULL;
2727 ReleaseMutex( hDBusDaemonMutex );
2729 CloseHandle( hDBusDaemonMutex );
2731 hDBusDaemonMutex = NULL;
2733 _dbus_global_unlock( lock );
2737 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2745 // we know that dbus-daemon is available, so we wait until shm is available
2746 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2747 if( sharedMem == 0 )
2749 if ( sharedMem != 0)
2753 if( sharedMem == 0 )
2756 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2761 _dbus_string_init( address );
2763 _dbus_string_append( address, shared_addr );
2766 UnmapViewOfFile( shared_addr );
2768 CloseHandle( sharedMem );
2774 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2778 DBusString mutex_name;
2779 dbus_bool_t bRet = TRUE;
2781 if (!_dbus_get_mutex_name(&mutex_name,scope))
2783 _dbus_string_free( &mutex_name );
2787 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2788 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2791 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2792 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2794 ReleaseMutex (daemon);
2795 CloseHandle (daemon);
2797 _dbus_global_unlock( lock );
2798 _dbus_string_free( &mutex_name );
2803 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2806 CloseHandle ( daemon );
2808 _dbus_global_unlock( lock );
2809 _dbus_string_free( &mutex_name );
2815 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2820 PROCESS_INFORMATION pi;
2821 dbus_bool_t retval = FALSE;
2823 char dbus_exe_path[MAX_PATH];
2824 char dbus_args[MAX_PATH * 2];
2825 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2826 DBusString shm_name;
2828 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2830 if (!_dbus_get_shm_name(&shm_name,scope))
2832 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2836 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2838 if (_dbus_daemon_already_runs(address,&shm_name,scope))
2840 _dbus_verbose( "found running dbus daemon at %s\n",
2841 _dbus_string_get_const_data (&shm_name) );
2846 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2848 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2849 printf ("or start the daemon manually\n\n");
2854 ZeroMemory( &si, sizeof(si) );
2856 ZeroMemory( &pi, sizeof(pi) );
2858 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2860 // argv[i] = "--config-file=bus\\session.conf";
2861 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2862 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2864 CloseHandle (pi.hThread);
2865 CloseHandle (pi.hProcess);
2866 retval = _dbus_get_autolaunch_shm( address, &shm_name );
2867 if (retval == FALSE)
2868 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
2872 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2878 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2880 _DBUS_ASSERT_ERROR_IS_SET (error);
2882 _dbus_global_unlock (mutex);
2888 /** Makes the file readable by every user in the system.
2890 * @param filename the filename
2891 * @param error error location
2892 * @returns #TRUE if the file's permissions could be changed.
2895 _dbus_make_file_world_readable(const DBusString *filename,
2903 * return the relocated DATADIR
2905 * @returns relocated DATADIR static string
2909 _dbus_windows_get_datadir (void)
2911 return _dbus_replace_install_prefix(DBUS_DATADIR);
2915 #define DBUS_DATADIR _dbus_windows_get_datadir ()
2918 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2919 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2922 * Returns the standard directories for a session bus to look for service
2925 * On Windows this should be data directories:
2927 * %CommonProgramFiles%/dbus
2931 * relocated DBUS_DATADIR
2933 * @param dirs the directory list we are returning
2934 * @returns #FALSE on OOM
2938 _dbus_get_standard_session_servicedirs (DBusList **dirs)
2940 const char *common_progs;
2941 DBusString servicedir_path;
2943 if (!_dbus_string_init (&servicedir_path))
2948 /* On Windows CE, we adjust datadir dynamically to installation location. */
2949 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
2951 if (data_dir != NULL)
2953 if (!_dbus_string_append (&servicedir_path, data_dir))
2956 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2962 the code for accessing services requires absolute base pathes
2963 in case DBUS_DATADIR is relative make it absolute
2969 _dbus_string_init_const (&p, DBUS_DATADIR);
2971 if (!_dbus_path_is_absolute (&p))
2973 char install_root[1000];
2974 if (_dbus_get_install_root (install_root, sizeof(install_root)))
2975 if (!_dbus_string_append (&servicedir_path, install_root))
2980 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
2983 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2987 common_progs = _dbus_getenv ("CommonProgramFiles");
2989 if (common_progs != NULL)
2991 if (!_dbus_string_append (&servicedir_path, common_progs))
2994 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2998 if (!_dbus_split_paths_and_append (&servicedir_path,
2999 DBUS_STANDARD_SESSION_SERVICEDIR,
3003 _dbus_string_free (&servicedir_path);
3007 _dbus_string_free (&servicedir_path);
3012 * Returns the standard directories for a system bus to look for service
3015 * On UNIX this should be the standard xdg freedesktop.org data directories:
3017 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3023 * On Windows there is no system bus and this function can return nothing.
3025 * @param dirs the directory list we are returning
3026 * @returns #FALSE on OOM
3030 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3036 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
3039 * Atomically increments an integer
3041 * @param atomic pointer to the integer to increment
3042 * @returns the value before incrementing
3046 _dbus_atomic_inc (DBusAtomic *atomic)
3048 // +/- 1 is needed here!
3049 // no volatile argument with mingw
3050 return InterlockedIncrement (&atomic->value) - 1;
3054 * Atomically decrement an integer
3056 * @param atomic pointer to the integer to decrement
3057 * @returns the value before decrementing
3061 _dbus_atomic_dec (DBusAtomic *atomic)
3063 // +/- 1 is needed here!
3064 // no volatile argument with mingw
3065 return InterlockedDecrement (&atomic->value) + 1;
3069 * Called when the bus daemon is signaled to reload its configuration; any
3070 * caches should be nuked. Of course any caches that need explicit reload
3071 * are probably broken, but c'est la vie.
3076 _dbus_flush_caches (void)
3081 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3082 * for Winsock so is abstracted)
3084 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3087 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3089 return errno == WSAEWOULDBLOCK;
3093 * return the absolute path of the dbus installation
3095 * @param s buffer for installation path
3096 * @param len length of buffer
3097 * @returns #FALSE on failure
3100 _dbus_get_install_root(char *prefix, int len)
3102 //To find the prefix, we cut the filename and also \bin\ if present
3108 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3109 if ( pathLength == 0 || GetLastError() != 0 ) {
3113 lastSlash = _mbsrchr(prefix, '\\');
3114 if (lastSlash == NULL) {
3118 //cut off binary name
3121 //cut possible "\\bin"
3123 //this fails if we are in a double-byte system codepage and the
3124 //folder's name happens to end with the *bytes*
3125 //"\\bin"... (I.e. the second byte of some Han character and then
3126 //the Latin "bin", but that is not likely I think...
3127 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3129 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3131 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3138 find config file either from installation or build root according to
3139 the following path layout
3141 bin/dbus-daemon[d].exe
3142 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3143 (the former above is what dbus4win uses, the latter above is
3144 what a "normal" Unix-style "make install" uses)
3147 bin/dbus-daemon[d].exe
3148 bus/<config-file>.conf
3151 _dbus_get_config_file_name(DBusString *config_file, char *s)
3153 char path[MAX_PATH*2];
3154 int path_size = sizeof(path);
3156 if (!_dbus_get_install_root(path,path_size))
3159 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3161 strcat(path,"etc\\");
3163 if (_dbus_file_exists(path))
3165 // find path from executable
3166 if (!_dbus_string_append (config_file, path))
3171 if (!_dbus_get_install_root(path,path_size))
3173 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3175 strcat(path,"etc\\dbus-1\\");
3178 if (_dbus_file_exists(path))
3180 if (!_dbus_string_append (config_file, path))
3185 if (!_dbus_get_install_root(path,path_size))
3187 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3189 strcat(path,"bus\\");
3192 if (_dbus_file_exists(path))
3194 if (!_dbus_string_append (config_file, path))
3203 * Append the absolute path of the system.conf file
3204 * (there is no system bus on Windows so this can just
3205 * return FALSE and print a warning or something)
3207 * @param str the string to append to
3208 * @returns #FALSE if no memory
3211 _dbus_append_system_config_file (DBusString *str)
3213 return _dbus_get_config_file_name(str, "system.conf");
3217 * Append the absolute path of the session.conf file.
3219 * @param str the string to append to
3220 * @returns #FALSE if no memory
3223 _dbus_append_session_config_file (DBusString *str)
3225 return _dbus_get_config_file_name(str, "session.conf");
3228 /* See comment in dbus-sysdeps-unix.c */
3230 _dbus_lookup_session_address (dbus_bool_t *supported,
3231 DBusString *address,
3234 /* Probably fill this in with something based on COM? */
3240 * Appends the directory in which a keyring for the given credentials
3241 * should be stored. The credentials should have either a Windows or
3242 * UNIX user in them. The directory should be an absolute path.
3244 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3245 * be something else, since the dotfile convention is not normal on Windows.
3247 * @param directory string to append directory to
3248 * @param credentials credentials the directory should be for
3250 * @returns #FALSE on no memory
3253 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3254 DBusCredentials *credentials)
3259 const char *homepath;
3260 const char *homedrive;
3262 _dbus_assert (credentials != NULL);
3263 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3265 if (!_dbus_string_init (&homedir))
3268 homedrive = _dbus_getenv("HOMEDRIVE");
3269 if (homedrive != NULL && *homedrive != '\0')
3271 _dbus_string_append(&homedir,homedrive);
3274 homepath = _dbus_getenv("HOMEPATH");
3275 if (homepath != NULL && *homepath != '\0')
3277 _dbus_string_append(&homedir,homepath);
3280 #ifdef DBUS_BUILD_TESTS
3282 const char *override;
3284 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3285 if (override != NULL && *override != '\0')
3287 _dbus_string_set_length (&homedir, 0);
3288 if (!_dbus_string_append (&homedir, override))
3291 _dbus_verbose ("Using fake homedir for testing: %s\n",
3292 _dbus_string_get_const_data (&homedir));
3296 static dbus_bool_t already_warned = FALSE;
3297 if (!already_warned)
3299 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3300 already_warned = TRUE;
3307 /* It's not possible to create a .something directory in Windows CE
3308 using the file explorer. */
3309 #define KEYRING_DIR "dbus-keyrings"
3311 #define KEYRING_DIR ".dbus-keyrings"
3314 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3315 if (!_dbus_concat_dir_and_file (&homedir,
3319 if (!_dbus_string_copy (&homedir, 0,
3320 directory, _dbus_string_get_length (directory))) {
3324 _dbus_string_free (&homedir);
3328 _dbus_string_free (&homedir);
3332 /** Checks if a file exists
3334 * @param file full path to the file
3335 * @returns #TRUE if file exists
3338 _dbus_file_exists (const char *file)
3340 DWORD attributes = GetFileAttributesA (file);
3342 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3349 * A wrapper around strerror() because some platforms
3350 * may be lame and not have strerror().
3352 * @param error_number errno.
3353 * @returns error description.
3356 _dbus_strerror (int error_number)
3364 switch (error_number)
3367 return "Interrupted function call";
3369 return "Permission denied";
3371 return "Bad address";
3373 return "Invalid argument";
3375 return "Too many open files";
3376 case WSAEWOULDBLOCK:
3377 return "Resource temporarily unavailable";
3378 case WSAEINPROGRESS:
3379 return "Operation now in progress";
3381 return "Operation already in progress";
3383 return "Socket operation on nonsocket";
3384 case WSAEDESTADDRREQ:
3385 return "Destination address required";
3387 return "Message too long";
3389 return "Protocol wrong type for socket";
3390 case WSAENOPROTOOPT:
3391 return "Bad protocol option";
3392 case WSAEPROTONOSUPPORT:
3393 return "Protocol not supported";
3394 case WSAESOCKTNOSUPPORT:
3395 return "Socket type not supported";
3397 return "Operation not supported";
3398 case WSAEPFNOSUPPORT:
3399 return "Protocol family not supported";
3400 case WSAEAFNOSUPPORT:
3401 return "Address family not supported by protocol family";
3403 return "Address already in use";
3404 case WSAEADDRNOTAVAIL:
3405 return "Cannot assign requested address";
3407 return "Network is down";
3408 case WSAENETUNREACH:
3409 return "Network is unreachable";
3411 return "Network dropped connection on reset";
3412 case WSAECONNABORTED:
3413 return "Software caused connection abort";
3415 return "Connection reset by peer";
3417 return "No buffer space available";
3419 return "Socket is already connected";
3421 return "Socket is not connected";
3423 return "Cannot send after socket shutdown";
3425 return "Connection timed out";
3426 case WSAECONNREFUSED:
3427 return "Connection refused";
3429 return "Host is down";
3430 case WSAEHOSTUNREACH:
3431 return "No route to host";
3433 return "Too many processes";
3435 return "Graceful shutdown in progress";
3436 case WSATYPE_NOT_FOUND:
3437 return "Class type not found";
3438 case WSAHOST_NOT_FOUND:
3439 return "Host not found";
3441 return "Nonauthoritative host not found";
3442 case WSANO_RECOVERY:
3443 return "This is a nonrecoverable error";
3445 return "Valid name, no data record of requested type";
3446 case WSA_INVALID_HANDLE:
3447 return "Specified event object handle is invalid";
3448 case WSA_INVALID_PARAMETER:
3449 return "One or more parameters are invalid";
3450 case WSA_IO_INCOMPLETE:
3451 return "Overlapped I/O event object not in signaled state";
3452 case WSA_IO_PENDING:
3453 return "Overlapped operations will complete later";
3454 case WSA_NOT_ENOUGH_MEMORY:
3455 return "Insufficient memory available";
3456 case WSA_OPERATION_ABORTED:
3457 return "Overlapped operation aborted";
3458 #ifdef WSAINVALIDPROCTABLE
3460 case WSAINVALIDPROCTABLE:
3461 return "Invalid procedure table from service provider";
3463 #ifdef WSAINVALIDPROVIDER
3465 case WSAINVALIDPROVIDER:
3466 return "Invalid service provider version number";
3468 #ifdef WSAPROVIDERFAILEDINIT
3470 case WSAPROVIDERFAILEDINIT:
3471 return "Unable to initialize a service provider";
3474 case WSASYSCALLFAILURE:
3475 return "System call failure";
3477 msg = strerror (error_number);
3486 * Assigns an error name and message corresponding to a Win32 error
3487 * code to a DBusError. Does nothing if error is #NULL.
3489 * @param error the error.
3490 * @param code the Win32 error code
3493 _dbus_win_set_error_from_win_error (DBusError *error,
3498 /* As we want the English message, use the A API */
3499 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3500 FORMAT_MESSAGE_IGNORE_INSERTS |
3501 FORMAT_MESSAGE_FROM_SYSTEM,
3502 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3503 (LPSTR) &msg, 0, NULL);
3508 msg_copy = dbus_malloc (strlen (msg));
3509 strcpy (msg_copy, msg);
3512 dbus_set_error (error, "win32.error", "%s", msg_copy);
3515 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3519 _dbus_win_warn_win_error (const char *message,
3524 dbus_error_init (&error);
3525 _dbus_win_set_error_from_win_error (&error, code);
3526 _dbus_warn ("%s: %s\n", message, error.message);
3527 dbus_error_free (&error);
3531 * Removes a directory; Directory must be empty
3533 * @param filename directory filename
3534 * @param error initialized error object
3535 * @returns #TRUE on success
3538 _dbus_delete_directory (const DBusString *filename,
3541 const char *filename_c;
3543 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3545 filename_c = _dbus_string_get_const_data (filename);
3547 if (RemoveDirectoryA (filename_c) == 0)
3549 char *emsg = _dbus_win_error_string (GetLastError ());
3550 dbus_set_error (error, _dbus_win_error_from_last_error (),
3551 "Failed to remove directory %s: %s",
3553 _dbus_win_free_error_string (emsg);
3561 * Checks whether the filename is an absolute path
3563 * @param filename the filename
3564 * @returns #TRUE if an absolute path
3567 _dbus_path_is_absolute (const DBusString *filename)
3569 if (_dbus_string_get_length (filename) > 0)
3570 return _dbus_string_get_byte (filename, 1) == ':'
3571 || _dbus_string_get_byte (filename, 0) == '\\'
3572 || _dbus_string_get_byte (filename, 0) == '/';
3577 /** @} end of sysdeps-win */
3578 /* tests in dbus-sysdeps-util.c */