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 Ralf Habacker <ralf.habacker@freenet.de>
8 * Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
9 * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.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
29 #define STRSAFE_NO_DEPRECATE
33 #define _WIN32_WINNT 0x0501
37 #include "dbus-internals.h"
38 #include "dbus-sysdeps.h"
39 #include "dbus-threads.h"
40 #include "dbus-protocol.h"
41 #include "dbus-string.h"
42 #include "dbus-sysdeps-win.h"
43 #include "dbus-protocol.h"
44 #include "dbus-hash.h"
45 #include "dbus-sockets-win.h"
46 #include "dbus-list.h"
47 #include "dbus-nonce.h"
48 #include "dbus-credentials.h"
54 /* Declarations missing in mingw's headers */
55 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
56 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
68 #include <sys/types.h>
71 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
78 #endif // HAVE_WSPIAPI_H
84 typedef int socklen_t;
87 _dbus_win_error_string (int error_number)
91 FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
92 FORMAT_MESSAGE_IGNORE_INSERTS |
93 FORMAT_MESSAGE_FROM_SYSTEM,
94 NULL, error_number, 0,
95 (LPSTR) &msg, 0, NULL);
97 if (msg[strlen (msg) - 1] == '\n')
98 msg[strlen (msg) - 1] = '\0';
99 if (msg[strlen (msg) - 1] == '\r')
100 msg[strlen (msg) - 1] = '\0';
106 _dbus_win_free_error_string (char *string)
117 * Thin wrapper around the read() system call that appends
118 * the data it reads to the DBusString buffer. It appends
119 * up to the given count, and returns the same value
120 * and same errno as read(). The only exception is that
121 * _dbus_read_socket() handles EINTR for you.
122 * _dbus_read_socket() can return ENOMEM, even though
123 * regular UNIX read doesn't.
125 * @param fd the file descriptor to read from
126 * @param buffer the buffer to append data to
127 * @param count the amount of data to read
128 * @returns the number of bytes read or -1
132 _dbus_read_socket (int fd,
140 _dbus_assert (count >= 0);
142 start = _dbus_string_get_length (buffer);
144 if (!_dbus_string_lengthen (buffer, count))
150 data = _dbus_string_get_data_len (buffer, start, count);
154 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
155 bytes_read = recv (fd, data, count, 0);
157 if (bytes_read == SOCKET_ERROR)
159 DBUS_SOCKET_SET_ERRNO();
160 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
164 _dbus_verbose ("recv: = %d\n", bytes_read);
172 /* put length back (note that this doesn't actually realloc anything) */
173 _dbus_string_set_length (buffer, start);
179 /* put length back (doesn't actually realloc) */
180 _dbus_string_set_length (buffer, start + bytes_read);
184 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
192 * Thin wrapper around the write() system call that writes a part of a
193 * DBusString and handles EINTR for you.
195 * @param fd the file descriptor to write
196 * @param buffer the buffer to write data from
197 * @param start the first byte in the buffer to write
198 * @param len the number of bytes to try to write
199 * @returns the number of bytes written or -1 on error
202 _dbus_write_socket (int fd,
203 const DBusString *buffer,
210 data = _dbus_string_get_const_data_len (buffer, start, len);
214 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
215 bytes_written = send (fd, data, len, 0);
217 if (bytes_written == SOCKET_ERROR)
219 DBUS_SOCKET_SET_ERRNO();
220 _dbus_verbose ("send: failed: %s\n", _dbus_strerror (errno));
224 _dbus_verbose ("send: = %d\n", bytes_written);
226 if (bytes_written < 0 && errno == EINTR)
230 if (bytes_written > 0)
231 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
234 return bytes_written;
239 * Closes a file descriptor.
241 * @param fd the file descriptor
242 * @param error error object
243 * @returns #FALSE if error set
246 _dbus_close_socket (int fd,
249 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
252 if (closesocket (fd) == SOCKET_ERROR)
254 DBUS_SOCKET_SET_ERRNO ();
259 dbus_set_error (error, _dbus_error_from_errno (errno),
260 "Could not close socket: socket=%d, , %s",
261 fd, _dbus_strerror (errno));
264 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
270 * Sets the file descriptor to be close
271 * on exec. Should be called for all file
272 * descriptors in D-Bus code.
274 * @param fd the file descriptor
277 _dbus_fd_set_close_on_exec (int handle)
279 if ( !SetHandleInformation( (HANDLE) handle,
280 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
281 0 /*disable both flags*/ ) )
283 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
288 * Sets a file descriptor to be nonblocking.
290 * @param fd the file descriptor.
291 * @param error address of error location.
292 * @returns #TRUE on success.
295 _dbus_set_fd_nonblocking (int handle,
300 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
302 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
304 dbus_set_error (error, _dbus_error_from_errno (WSAGetLastError ()),
305 "Failed to set socket %d:%d to nonblocking: %s", handle,
306 _dbus_strerror (WSAGetLastError ()));
315 * Like _dbus_write() but will use writev() if possible
316 * to write both buffers in sequence. The return value
317 * is the number of bytes written in the first buffer,
318 * plus the number written in the second. If the first
319 * buffer is written successfully and an error occurs
320 * writing the second, the number of bytes in the first
321 * is returned (i.e. the error is ignored), on systems that
322 * don't have writev. Handles EINTR for you.
323 * The second buffer may be #NULL.
325 * @param fd the file descriptor
326 * @param buffer1 first buffer
327 * @param start1 first byte to write in first buffer
328 * @param len1 number of bytes to write from first buffer
329 * @param buffer2 second buffer, or #NULL
330 * @param start2 first byte to write in second buffer
331 * @param len2 number of bytes to write in second buffer
332 * @returns total bytes written from both buffers, or -1 on error
335 _dbus_write_socket_two (int fd,
336 const DBusString *buffer1,
339 const DBusString *buffer2,
349 _dbus_assert (buffer1 != NULL);
350 _dbus_assert (start1 >= 0);
351 _dbus_assert (start2 >= 0);
352 _dbus_assert (len1 >= 0);
353 _dbus_assert (len2 >= 0);
356 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
359 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
367 vectors[0].buf = (char*) data1;
368 vectors[0].len = len1;
369 vectors[1].buf = (char*) data2;
370 vectors[1].len = len2;
374 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
385 DBUS_SOCKET_SET_ERRNO ();
386 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror (errno));
390 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
392 if (bytes_written < 0 && errno == EINTR)
395 return bytes_written;
399 _dbus_socket_is_invalid (int fd)
401 return fd == INVALID_SOCKET ? TRUE : FALSE;
407 * Opens the client side of a Windows named pipe. The connection D-BUS
408 * file descriptor index is returned. It is set up as nonblocking.
410 * @param path the path to named pipe socket
411 * @param error return location for error code
412 * @returns connection D-BUS file descriptor or -1 on error
415 _dbus_connect_named_pipe (const char *path,
418 _dbus_assert_not_reached ("not implemented");
426 _dbus_win_startup_winsock (void)
428 /* Straight from MSDN, deuglified */
430 static dbus_bool_t beenhere = FALSE;
432 WORD wVersionRequested;
439 wVersionRequested = MAKEWORD (2, 0);
441 err = WSAStartup (wVersionRequested, &wsaData);
444 _dbus_assert_not_reached ("Could not initialize WinSock");
448 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
449 * supports versions greater than 2.0 in addition to 2.0, it will
450 * still return 2.0 in wVersion since that is the version we
453 if (LOBYTE (wsaData.wVersion) != 2 ||
454 HIBYTE (wsaData.wVersion) != 0)
456 _dbus_assert_not_reached ("No usable WinSock found");
471 /************************************************************************
475 ************************************************************************/
478 * Measure the message length without terminating nul
480 int _dbus_printf_string_upper_bound (const char *format,
483 /* MSVCRT's vsnprintf semantics are a bit different */
488 bufsize = sizeof (buf);
489 len = _vsnprintf (buf, bufsize - 1, format, args);
491 while (len == -1) /* try again */
497 p = malloc (bufsize);
498 len = _vsnprintf (p, bufsize - 1, format, args);
507 * Returns the UTF-16 form of a UTF-8 string. The result should be
508 * freed with dbus_free() when no longer needed.
510 * @param str the UTF-8 string
511 * @param error return location for error code
514 _dbus_win_utf8_to_utf16 (const char *str,
521 _dbus_string_init_const (&s, str);
523 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
525 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
529 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
533 _dbus_win_set_error_from_win_error (error, GetLastError ());
537 retval = dbus_new (wchar_t, n);
541 _DBUS_SET_OOM (error);
545 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
548 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
556 * Returns the UTF-8 form of a UTF-16 string. The result should be
557 * freed with dbus_free() when no longer needed.
559 * @param str the UTF-16 string
560 * @param error return location for error code
563 _dbus_win_utf16_to_utf8 (const wchar_t *str,
569 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
573 _dbus_win_set_error_from_win_error (error, GetLastError ());
577 retval = dbus_malloc (n);
581 _DBUS_SET_OOM (error);
585 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
588 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
600 /************************************************************************
603 ************************************************************************/
606 _dbus_win_account_to_sid (const wchar_t *waccount,
610 dbus_bool_t retval = FALSE;
611 DWORD sid_length, wdomain_length;
619 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
620 NULL, &wdomain_length, &use) &&
621 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
623 _dbus_win_set_error_from_win_error (error, GetLastError ());
627 *ppsid = dbus_malloc (sid_length);
630 _DBUS_SET_OOM (error);
634 wdomain = dbus_new (wchar_t, wdomain_length);
637 _DBUS_SET_OOM (error);
641 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
642 wdomain, &wdomain_length, &use))
644 _dbus_win_set_error_from_win_error (error, GetLastError ());
648 if (!IsValidSid ((PSID) *ppsid))
650 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
668 /** @} end of sysdeps-win */
672 * The only reason this is separate from _dbus_getpid() is to allow it
673 * on Windows for logging but not for other purposes.
675 * @returns process ID to put in log messages
678 _dbus_pid_for_log (void)
680 return _dbus_getpid ();
684 * @param points to sid buffer, need to be freed with LocalFree()
685 * @returns process sid
688 _dbus_getsid(char **sid)
690 HANDLE process_token = INVALID_HANDLE_VALUE;
691 TOKEN_USER *token_user = NULL;
696 if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
698 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
701 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
702 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
703 || (token_user = alloca (n)) == NULL
704 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
706 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
709 psid = token_user->User.Sid;
710 if (!IsValidSid (psid))
712 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
715 if (!ConvertSidToStringSidA (psid, sid))
717 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
724 if (process_token != INVALID_HANDLE_VALUE)
725 CloseHandle (process_token);
727 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
731 /************************************************************************
735 ************************************************************************/
738 * Creates a full-duplex pipe (as in socketpair()).
739 * Sets both ends of the pipe nonblocking.
741 * @todo libdbus only uses this for the debug-pipe server, so in
742 * principle it could be in dbus-sysdeps-util.c, except that
743 * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
744 * debug-pipe server is used.
746 * @param fd1 return location for one end
747 * @param fd2 return location for the other end
748 * @param blocking #TRUE if pipe should be blocking
749 * @param error error return
750 * @returns #FALSE on failure (if error is set)
753 _dbus_full_duplex_pipe (int *fd1,
755 dbus_bool_t blocking,
758 SOCKET temp, socket1 = -1, socket2 = -1;
759 struct sockaddr_in saddr;
762 fd_set read_set, write_set;
765 _dbus_win_startup_winsock ();
767 temp = socket (AF_INET, SOCK_STREAM, 0);
768 if (temp == INVALID_SOCKET)
770 DBUS_SOCKET_SET_ERRNO ();
775 if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR)
777 DBUS_SOCKET_SET_ERRNO ();
782 saddr.sin_family = AF_INET;
784 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
786 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)))
788 DBUS_SOCKET_SET_ERRNO ();
792 if (listen (temp, 1) == SOCKET_ERROR)
794 DBUS_SOCKET_SET_ERRNO ();
798 len = sizeof (saddr);
799 if (getsockname (temp, (struct sockaddr *)&saddr, &len))
801 DBUS_SOCKET_SET_ERRNO ();
805 socket1 = socket (AF_INET, SOCK_STREAM, 0);
806 if (socket1 == INVALID_SOCKET)
808 DBUS_SOCKET_SET_ERRNO ();
813 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
815 DBUS_SOCKET_SET_ERRNO ();
819 if (connect (socket1, (struct sockaddr *)&saddr, len) != SOCKET_ERROR ||
820 WSAGetLastError () != WSAEWOULDBLOCK)
822 DBUS_SOCKET_SET_ERRNO ();
827 FD_SET (temp, &read_set);
832 if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR)
834 DBUS_SOCKET_SET_ERRNO ();
838 _dbus_assert (FD_ISSET (temp, &read_set));
840 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
841 if (socket2 == INVALID_SOCKET)
843 DBUS_SOCKET_SET_ERRNO ();
847 FD_ZERO (&write_set);
848 FD_SET (socket1, &write_set);
853 if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR)
855 DBUS_SOCKET_SET_ERRNO ();
859 _dbus_assert (FD_ISSET (socket1, &write_set));
864 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
866 DBUS_SOCKET_SET_ERRNO ();
871 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
873 DBUS_SOCKET_SET_ERRNO ();
880 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
882 DBUS_SOCKET_SET_ERRNO ();
890 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
891 *fd1, socket1, *fd2, socket2);
898 closesocket (socket2);
900 closesocket (socket1);
904 dbus_set_error (error, _dbus_error_from_errno (errno),
905 "Could not setup socket pair: %s",
906 _dbus_strerror (errno));
912 * Wrapper for poll().
914 * @param fds the file descriptors to poll
915 * @param n_fds number of descriptors in the array
916 * @param timeout_milliseconds timeout or -1 for infinite
917 * @returns numbers of fds with revents, or <0 on error
920 _dbus_poll (DBusPollFD *fds,
922 int timeout_milliseconds)
924 #define USE_CHRIS_IMPL 0
928 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
929 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
937 #define DBUS_STACK_WSAEVENTS 256
938 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
939 WSAEVENT *pEvents = NULL;
940 if (n_fds > DBUS_STACK_WSAEVENTS)
941 pEvents = calloc(sizeof(WSAEVENT), n_fds);
943 pEvents = eventsOnStack;
946 #ifdef DBUS_ENABLE_VERBOSE_MODE
948 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
949 for (i = 0; i < n_fds; i++)
951 static dbus_bool_t warned = FALSE;
952 DBusPollFD *fdp = &fds[i];
955 if (fdp->events & _DBUS_POLLIN)
956 msgp += sprintf (msgp, "R:%d ", fdp->fd);
958 if (fdp->events & _DBUS_POLLOUT)
959 msgp += sprintf (msgp, "W:%d ", fdp->fd);
961 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
963 // FIXME: more robust code for long msg
964 // create on heap when msg[] becomes too small
965 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
967 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
971 msgp += sprintf (msgp, "\n");
972 _dbus_verbose ("%s",msg);
974 for (i = 0; i < n_fds; i++)
976 DBusPollFD *fdp = &fds[i];
978 long lNetworkEvents = FD_OOB;
980 ev = WSACreateEvent();
982 if (fdp->events & _DBUS_POLLIN)
983 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
985 if (fdp->events & _DBUS_POLLOUT)
986 lNetworkEvents |= FD_WRITE | FD_CONNECT;
988 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
994 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
996 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
998 DBUS_SOCKET_SET_ERRNO ();
999 if (errno != WSAEWOULDBLOCK)
1000 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", strerror (errno));
1003 else if (ready == WSA_WAIT_TIMEOUT)
1005 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1008 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1011 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1013 for (i = 0; i < n_fds; i++)
1015 DBusPollFD *fdp = &fds[i];
1016 WSANETWORKEVENTS ne;
1020 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1022 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1023 fdp->revents |= _DBUS_POLLIN;
1025 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1026 fdp->revents |= _DBUS_POLLOUT;
1028 if (ne.lNetworkEvents & (FD_OOB))
1029 fdp->revents |= _DBUS_POLLERR;
1031 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1032 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1034 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1035 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1037 if (ne.lNetworkEvents & (FD_OOB))
1038 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1040 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1042 if(ne.lNetworkEvents)
1045 WSAEventSelect(fdp->fd, pEvents[i], 0);
1048 msgp += sprintf (msgp, "\n");
1049 _dbus_verbose ("%s",msg);
1053 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1057 for(i = 0; i < n_fds; i++)
1059 WSACloseEvent(pEvents[i]);
1062 if (n_fds > DBUS_STACK_WSAEVENTS)
1067 #else /* USE_CHRIS_IMPL */
1069 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1070 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1073 fd_set read_set, write_set, err_set;
1079 FD_ZERO (&read_set);
1080 FD_ZERO (&write_set);
1084 #ifdef DBUS_ENABLE_VERBOSE_MODE
1086 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1087 for (i = 0; i < n_fds; i++)
1089 static dbus_bool_t warned = FALSE;
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);
1128 tv.tv_sec = timeout_milliseconds / 1000;
1129 tv.tv_usec = (timeout_milliseconds % 1000) * 1000;
1131 ready = select (max_fd + 1, &read_set, &write_set, &err_set,
1132 timeout_milliseconds < 0 ? NULL : &tv);
1134 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1136 DBUS_SOCKET_SET_ERRNO ();
1137 if (errno != WSAEWOULDBLOCK)
1138 _dbus_verbose ("select: failed: %s\n", _dbus_strerror (errno));
1140 else if (ready == 0)
1141 _dbus_verbose ("select: = 0\n");
1145 #ifdef DBUS_ENABLE_VERBOSE_MODE
1147 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1149 for (i = 0; i < n_fds; i++)
1151 DBusPollFD *fdp = &fds[i];
1153 if (FD_ISSET (fdp->fd, &read_set))
1154 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1156 if (FD_ISSET (fdp->fd, &write_set))
1157 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1159 if (FD_ISSET (fdp->fd, &err_set))
1160 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1162 msgp += sprintf (msgp, "\n");
1163 _dbus_verbose ("%s",msg);
1166 for (i = 0; i < n_fds; i++)
1168 DBusPollFD *fdp = &fds[i];
1172 if (FD_ISSET (fdp->fd, &read_set))
1173 fdp->revents |= _DBUS_POLLIN;
1175 if (FD_ISSET (fdp->fd, &write_set))
1176 fdp->revents |= _DBUS_POLLOUT;
1178 if (FD_ISSET (fdp->fd, &err_set))
1179 fdp->revents |= _DBUS_POLLERR;
1183 #endif /* USE_CHRIS_IMPL */
1189 /******************************************************************************
1191 Original CVS version of dbus-sysdeps.c
1193 ******************************************************************************/
1194 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1195 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1197 * Copyright (C) 2002, 2003 Red Hat, Inc.
1198 * Copyright (C) 2003 CodeFactory AB
1199 * Copyright (C) 2005 Novell, Inc.
1201 * Licensed under the Academic Free License version 2.1
1203 * This program is free software; you can redistribute it and/or modify
1204 * it under the terms of the GNU General Public License as published by
1205 * the Free Software Foundation; either version 2 of the License, or
1206 * (at your option) any later version.
1208 * This program is distributed in the hope that it will be useful,
1209 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1210 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1211 * GNU General Public License for more details.
1213 * You should have received a copy of the GNU General Public License
1214 * along with this program; if not, write to the Free Software
1215 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1221 * Exit the process, returning the given value.
1223 * @param code the exit code
1226 _dbus_exit (int code)
1232 * Creates a socket and connects to a socket at the given host
1233 * and port. The connection fd is returned, and is set up as
1236 * @param host the host name to connect to
1237 * @param port the port to connect to
1238 * @param family the address family to listen on, NULL for all
1239 * @param error return location for error code
1240 * @returns connection file descriptor or -1 on error
1243 _dbus_connect_tcp_socket (const char *host,
1248 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1252 _dbus_connect_tcp_socket_with_nonce (const char *host,
1255 const char *noncefile,
1259 struct addrinfo hints;
1260 struct addrinfo *ai, *tmp;
1262 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1264 _dbus_win_startup_winsock ();
1266 fd = socket (AF_INET, SOCK_STREAM, 0);
1268 if (DBUS_SOCKET_IS_INVALID (fd))
1270 DBUS_SOCKET_SET_ERRNO ();
1271 dbus_set_error (error,
1272 _dbus_error_from_errno (errno),
1273 "Failed to create socket: %s",
1274 _dbus_strerror (errno));
1279 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1284 hints.ai_family = AF_UNSPEC;
1285 else if (!strcmp(family, "ipv4"))
1286 hints.ai_family = AF_INET;
1287 else if (!strcmp(family, "ipv6"))
1288 hints.ai_family = AF_INET6;
1291 dbus_set_error (error,
1292 _dbus_error_from_errno (errno),
1293 "Unknown address family %s", family);
1296 hints.ai_protocol = IPPROTO_TCP;
1297 hints.ai_socktype = SOCK_STREAM;
1298 #ifdef AI_ADDRCONFIG
1299 hints.ai_flags = AI_ADDRCONFIG;
1304 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0)
1306 dbus_set_error (error,
1307 _dbus_error_from_errno (errno),
1308 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1309 host, port, gai_strerror(res), res);
1317 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1320 dbus_set_error (error,
1321 _dbus_error_from_errno (errno),
1322 "Failed to open socket: %s",
1323 _dbus_strerror (errno));
1326 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1328 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) != 0)
1342 dbus_set_error (error,
1343 _dbus_error_from_errno (errno),
1344 "Failed to connect to socket \"%s:%s\" %s",
1345 host, port, _dbus_strerror(errno));
1349 if ( noncefile != NULL )
1351 DBusString noncefileStr;
1353 if (!_dbus_string_init (&noncefileStr) ||
1354 !_dbus_string_append(&noncefileStr, noncefile))
1357 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1361 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1363 _dbus_string_free (&noncefileStr);
1372 if (!_dbus_set_fd_nonblocking (fd, error) )
1382 * Creates a socket and binds it to the given path, then listens on
1383 * the socket. The socket is set to be nonblocking. In case of port=0
1384 * a random free port is used and returned in the port parameter.
1385 * If inaddr_any is specified, the hostname is ignored.
1387 * @param host the host name to listen on
1388 * @param port the port to listen on, if zero a free port will be used
1389 * @param family the address family to listen on, NULL for all
1390 * @param retport string to return the actual port listened on
1391 * @param fds_p location to store returned file descriptors
1392 * @param error return location for errors
1393 * @returns the number of listening file descriptors or -1 on error
1397 _dbus_listen_tcp_socket (const char *host,
1400 DBusString *retport,
1404 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1405 struct addrinfo hints;
1406 struct addrinfo *ai, *tmp;
1408 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1409 //That's required for family == IPv6(which is the default on Vista if family is not given)
1410 //So we use our own union instead of sockaddr_gen:
1413 struct sockaddr Address;
1414 struct sockaddr_in AddressIn;
1415 struct sockaddr_in6 AddressIn6;
1419 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1421 _dbus_win_startup_winsock ();
1426 hints.ai_family = AF_UNSPEC;
1427 else if (!strcmp(family, "ipv4"))
1428 hints.ai_family = AF_INET;
1429 else if (!strcmp(family, "ipv6"))
1430 hints.ai_family = AF_INET6;
1433 dbus_set_error (error,
1434 _dbus_error_from_errno (errno),
1435 "Unknown address family %s", family);
1439 hints.ai_protocol = IPPROTO_TCP;
1440 hints.ai_socktype = SOCK_STREAM;
1441 #ifdef AI_ADDRCONFIG
1442 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1444 hints.ai_flags = AI_PASSIVE;
1447 redo_lookup_with_port:
1448 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1450 dbus_set_error (error,
1451 _dbus_error_from_errno (errno),
1452 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1453 host ? host : "*", port, gai_strerror(res), res);
1460 int fd = -1, *newlisten_fd;
1461 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1463 dbus_set_error (error,
1464 _dbus_error_from_errno (errno),
1465 "Failed to open socket: %s",
1466 _dbus_strerror (errno));
1469 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1471 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1474 dbus_set_error (error, _dbus_error_from_errno (errno),
1475 "Failed to bind socket \"%s:%s\": %s",
1476 host ? host : "*", port, _dbus_strerror (errno));
1480 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1483 dbus_set_error (error, _dbus_error_from_errno (errno),
1484 "Failed to listen on socket \"%s:%s\": %s",
1485 host ? host : "*", port, _dbus_strerror (errno));
1489 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1493 dbus_set_error (error, _dbus_error_from_errno (errno),
1494 "Failed to allocate file handle array: %s",
1495 _dbus_strerror (errno));
1498 listen_fd = newlisten_fd;
1499 listen_fd[nlisten_fd] = fd;
1502 if (!_dbus_string_get_length(retport))
1504 /* If the user didn't specify a port, or used 0, then
1505 the kernel chooses a port. After the first address
1506 is bound to, we need to force all remaining addresses
1507 to use the same port */
1508 if (!port || !strcmp(port, "0"))
1510 mysockaddr_gen addr;
1511 socklen_t addrlen = sizeof(addr);
1514 if ((res = getsockname(fd, &addr.Address, &addrlen)) != 0)
1516 dbus_set_error (error, _dbus_error_from_errno (errno),
1517 "Failed to resolve port \"%s:%s\": %s (%d)",
1518 host ? host : "*", port, gai_strerror(res), res);
1521 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1522 if (!_dbus_string_append(retport, portbuf))
1524 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1528 /* Release current address list & redo lookup */
1529 port = _dbus_string_get_const_data(retport);
1531 goto redo_lookup_with_port;
1535 if (!_dbus_string_append(retport, port))
1537 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1550 errno = WSAEADDRINUSE;
1551 dbus_set_error (error, _dbus_error_from_errno (errno),
1552 "Failed to bind socket \"%s:%s\": %s",
1553 host ? host : "*", port, _dbus_strerror (errno));
1557 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1559 for (i = 0 ; i < nlisten_fd ; i++)
1561 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1574 for (i = 0 ; i < nlisten_fd ; i++)
1575 closesocket (listen_fd[i]);
1576 dbus_free(listen_fd);
1582 * Accepts a connection on a listening socket.
1583 * Handles EINTR for you.
1585 * @param listen_fd the listen file descriptor
1586 * @returns the connection fd of the client, or -1 on error
1589 _dbus_accept (int listen_fd)
1594 client_fd = accept (listen_fd, NULL, NULL);
1596 if (DBUS_SOCKET_IS_INVALID (client_fd))
1598 DBUS_SOCKET_SET_ERRNO ();
1603 _dbus_verbose ("client fd %d accepted\n", client_fd);
1612 _dbus_send_credentials_socket (int handle,
1615 /* FIXME: for the session bus credentials shouldn't matter (?), but
1616 * for the system bus they are presumably essential. A rough outline
1617 * of a way to implement the credential transfer would be this:
1619 * client waits to *read* a byte.
1621 * server creates a named pipe with a random name, sends a byte
1622 * contining its length, and its name.
1624 * client reads the name, connects to it (using Win32 API).
1626 * server waits for connection to the named pipe, then calls
1627 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1628 * calls RevertToSelf(), closes its handles to the named pipe, and
1629 * is done. (Maybe there is some other way to get the SID of a named
1630 * pipe client without having to use impersonation?)
1632 * client closes its handles and is done.
1634 * Ralf: Why not sending credentials over the given this connection ?
1635 * Using named pipes makes it impossible to be connected from a unix client.
1641 _dbus_string_init_const_len (&buf, "\0", 1);
1643 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1645 if (bytes_written < 0 && errno == EINTR)
1648 if (bytes_written < 0)
1650 dbus_set_error (error, _dbus_error_from_errno (errno),
1651 "Failed to write credentials byte: %s",
1652 _dbus_strerror (errno));
1655 else if (bytes_written == 0)
1657 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1658 "wrote zero bytes writing credentials byte");
1663 _dbus_assert (bytes_written == 1);
1664 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1671 * Reads a single byte which must be nul (an error occurs otherwise),
1672 * and reads unix credentials if available. Fills in pid/uid/gid with
1673 * -1 if no credentials are available. Return value indicates whether
1674 * a byte was read, not whether we got valid credentials. On some
1675 * systems, such as Linux, reading/writing the byte isn't actually
1676 * required, but we do it anyway just to avoid multiple codepaths.
1678 * Fails if no byte is available, so you must select() first.
1680 * The point of the byte is that on some systems we have to
1681 * use sendmsg()/recvmsg() to transmit credentials.
1683 * @param client_fd the client file descriptor
1684 * @param credentials struct to fill with credentials of client
1685 * @param error location to store error code
1686 * @returns #TRUE on success
1689 _dbus_read_credentials_socket (int handle,
1690 DBusCredentials *credentials,
1696 // could fail due too OOM
1697 if (_dbus_string_init(&buf))
1699 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1702 _dbus_verbose("got one zero byte from server");
1704 _dbus_string_free(&buf);
1707 _dbus_credentials_add_from_current_process (credentials);
1708 _dbus_verbose("FIXME: get faked credentials from current process");
1714 * Checks to make sure the given directory is
1715 * private to the user
1717 * @param dir the name of the directory
1718 * @param error error return
1719 * @returns #FALSE on failure
1722 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1724 const char *directory;
1727 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1734 * Appends the given filename to the given directory.
1736 * @todo it might be cute to collapse multiple '/' such as "foo//"
1739 * @param dir the directory name
1740 * @param next_component the filename
1741 * @returns #TRUE on success
1744 _dbus_concat_dir_and_file (DBusString *dir,
1745 const DBusString *next_component)
1747 dbus_bool_t dir_ends_in_slash;
1748 dbus_bool_t file_starts_with_slash;
1750 if (_dbus_string_get_length (dir) == 0 ||
1751 _dbus_string_get_length (next_component) == 0)
1755 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1756 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1758 file_starts_with_slash =
1759 ('/' == _dbus_string_get_byte (next_component, 0) ||
1760 '\\' == _dbus_string_get_byte (next_component, 0));
1762 if (dir_ends_in_slash && file_starts_with_slash)
1764 _dbus_string_shorten (dir, 1);
1766 else if (!(dir_ends_in_slash || file_starts_with_slash))
1768 if (!_dbus_string_append_byte (dir, '\\'))
1772 return _dbus_string_copy (next_component, 0, dir,
1773 _dbus_string_get_length (dir));
1776 /*---------------- DBusCredentials ----------------------------------*/
1779 * Adds the credentials corresponding to the given username.
1781 * @param credentials credentials to fill in
1782 * @param username the username
1783 * @returns #TRUE if the username existed and we got some credentials
1786 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1787 const DBusString *username)
1789 return _dbus_credentials_add_windows_sid (credentials,
1790 _dbus_string_get_const_data(username));
1794 * Adds the credentials of the current process to the
1795 * passed-in credentials object.
1797 * @param credentials credentials to add to
1798 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1802 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1804 dbus_bool_t retval = FALSE;
1807 if (!_dbus_getsid(&sid))
1810 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1813 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1828 * Append to the string the identity we would like to have when we
1829 * authenticate, on UNIX this is the current process UID and on
1830 * Windows something else, probably a Windows SID string. No escaping
1831 * is required, that is done in dbus-auth.c. The username here
1832 * need not be anything human-readable, it can be the machine-readable
1833 * form i.e. a user id.
1835 * @param str the string to append to
1836 * @returns #FALSE on no memory
1837 * @todo to which class belongs this
1840 _dbus_append_user_from_current_process (DBusString *str)
1842 dbus_bool_t retval = FALSE;
1845 if (!_dbus_getsid(&sid))
1848 retval = _dbus_string_append (str,sid);
1855 * Gets our process ID
1856 * @returns process ID
1861 return GetCurrentProcessId ();
1864 /** nanoseconds in a second */
1865 #define NANOSECONDS_PER_SECOND 1000000000
1866 /** microseconds in a second */
1867 #define MICROSECONDS_PER_SECOND 1000000
1868 /** milliseconds in a second */
1869 #define MILLISECONDS_PER_SECOND 1000
1870 /** nanoseconds in a millisecond */
1871 #define NANOSECONDS_PER_MILLISECOND 1000000
1872 /** microseconds in a millisecond */
1873 #define MICROSECONDS_PER_MILLISECOND 1000
1876 * Sleeps the given number of milliseconds.
1877 * @param milliseconds number of milliseconds
1880 _dbus_sleep_milliseconds (int milliseconds)
1882 Sleep (milliseconds);
1887 * Get current time, as in gettimeofday().
1889 * @param tv_sec return location for number of seconds
1890 * @param tv_usec return location for number of microseconds
1893 _dbus_get_current_time (long *tv_sec,
1897 dbus_uint64_t time64;
1899 GetSystemTimeAsFileTime (&ft);
1901 memcpy (&time64, &ft, sizeof (time64));
1903 /* Convert from 100s of nanoseconds since 1601-01-01
1904 * to Unix epoch. Yes, this is Y2038 unsafe.
1906 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1910 *tv_sec = time64 / 1000000;
1913 *tv_usec = time64 % 1000000;
1918 * signal (SIGPIPE, SIG_IGN);
1921 _dbus_disable_sigpipe (void)
1926 * Creates a directory; succeeds if the directory
1927 * is created or already existed.
1929 * @param filename directory filename
1930 * @param error initialized error object
1931 * @returns #TRUE on success
1934 _dbus_create_directory (const DBusString *filename,
1937 const char *filename_c;
1939 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1941 filename_c = _dbus_string_get_const_data (filename);
1943 if (!CreateDirectory (filename_c, NULL))
1945 if (GetLastError () == ERROR_ALREADY_EXISTS)
1948 dbus_set_error (error, DBUS_ERROR_FAILED,
1949 "Failed to create directory %s: %s\n",
1950 filename_c, strerror (errno));
1959 * Generates the given number of random bytes,
1960 * using the best mechanism we can come up with.
1962 * @param str the string
1963 * @param n_bytes the number of random bytes to append to string
1964 * @returns #TRUE on success, #FALSE if no memory
1967 _dbus_generate_random_bytes (DBusString *str,
1974 old_len = _dbus_string_get_length (str);
1976 if (!_dbus_string_lengthen (str, n_bytes))
1979 p = _dbus_string_get_data_len (str, old_len, n_bytes);
1981 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1984 if (!CryptGenRandom (hprov, n_bytes, p))
1986 CryptReleaseContext (hprov, 0);
1990 CryptReleaseContext (hprov, 0);
1996 * Gets the temporary files directory by inspecting the environment variables
1997 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
1999 * @returns location of temp directory
2002 _dbus_get_tmpdir(void)
2004 static const char* tmpdir = NULL;
2005 static char buf[1000];
2011 if (!GetTempPath (sizeof (buf), buf))
2013 _dbus_warn ("GetTempPath failed\n");
2017 /* Drop terminating backslash or slash */
2018 last_slash = _mbsrchr (buf, '\\');
2019 if (last_slash > buf && last_slash[1] == '\0')
2020 last_slash[0] = '\0';
2021 last_slash = _mbsrchr (buf, '/');
2022 if (last_slash > buf && last_slash[1] == '\0')
2023 last_slash[0] = '\0';
2028 _dbus_assert(tmpdir != NULL);
2035 * Deletes the given file.
2037 * @param filename the filename
2038 * @param error error location
2040 * @returns #TRUE if unlink() succeeded
2043 _dbus_delete_file (const DBusString *filename,
2046 const char *filename_c;
2048 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2050 filename_c = _dbus_string_get_const_data (filename);
2052 if (_unlink (filename_c) < 0)
2054 dbus_set_error (error, DBUS_ERROR_FAILED,
2055 "Failed to delete file %s: %s\n",
2056 filename_c, strerror (errno));
2063 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_BUILD_TESTS)
2075 * Backtrace Generator
2077 * Copyright 2004 Eric Poech
2078 * Copyright 2004 Robert Shearman
2080 * This library is free software; you can redistribute it and/or
2081 * modify it under the terms of the GNU Lesser General Public
2082 * License as published by the Free Software Foundation; either
2083 * version 2.1 of the License, or (at your option) any later version.
2085 * This library is distributed in the hope that it will be useful,
2086 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2087 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2088 * Lesser General Public License for more details.
2090 * You should have received a copy of the GNU Lesser General Public
2091 * License along with this library; if not, write to the Free Software
2092 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2096 #include <imagehlp.h>
2099 #define DPRINTF _dbus_warn
2107 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2109 //MAKE_FUNCPTR(StackWalk);
2110 //MAKE_FUNCPTR(SymGetModuleBase);
2111 //MAKE_FUNCPTR(SymFunctionTableAccess);
2112 //MAKE_FUNCPTR(SymInitialize);
2113 //MAKE_FUNCPTR(SymGetSymFromAddr);
2114 //MAKE_FUNCPTR(SymGetModuleInfo);
2115 static BOOL (WINAPI *pStackWalk)(
2119 LPSTACKFRAME StackFrame,
2120 PVOID ContextRecord,
2121 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2122 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2123 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2124 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2126 static DWORD (WINAPI *pSymGetModuleBase)(
2130 static PVOID (WINAPI *pSymFunctionTableAccess)(
2134 static BOOL (WINAPI *pSymInitialize)(
2136 PSTR UserSearchPath,
2139 static BOOL (WINAPI *pSymGetSymFromAddr)(
2142 PDWORD Displacement,
2143 PIMAGEHLP_SYMBOL Symbol
2145 static BOOL (WINAPI *pSymGetModuleInfo)(
2148 PIMAGEHLP_MODULE ModuleInfo
2150 static DWORD (WINAPI *pSymSetOptions)(
2155 static BOOL init_backtrace()
2157 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2159 #define GETFUNC(x) \
2160 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2168 // GETFUNC(StackWalk);
2169 // GETFUNC(SymGetModuleBase);
2170 // GETFUNC(SymFunctionTableAccess);
2171 // GETFUNC(SymInitialize);
2172 // GETFUNC(SymGetSymFromAddr);
2173 // GETFUNC(SymGetModuleInfo);
2177 pStackWalk = (BOOL (WINAPI *)(
2181 LPSTACKFRAME StackFrame,
2182 PVOID ContextRecord,
2183 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2184 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2185 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2186 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2187 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2188 pSymGetModuleBase=(DWORD (WINAPI *)(
2191 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2192 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2195 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2196 pSymInitialize = (BOOL (WINAPI *)(
2198 PSTR UserSearchPath,
2200 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2201 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2204 PDWORD Displacement,
2205 PIMAGEHLP_SYMBOL Symbol
2206 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2207 pSymGetModuleInfo = (BOOL (WINAPI *)(
2210 PIMAGEHLP_MODULE ModuleInfo
2211 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2212 pSymSetOptions = (DWORD (WINAPI *)(
2214 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2217 pSymSetOptions(SYMOPT_UNDNAME);
2219 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2224 static void dump_backtrace_for_thread(HANDLE hThread)
2231 if (!init_backtrace())
2234 /* can't use this function for current thread as GetThreadContext
2235 * doesn't support getting context from current thread */
2236 if (hThread == GetCurrentThread())
2239 DPRINTF("Backtrace:\n");
2241 _DBUS_ZERO(context);
2242 context.ContextFlags = CONTEXT_FULL;
2244 SuspendThread(hThread);
2246 if (!GetThreadContext(hThread, &context))
2248 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2249 ResumeThread(hThread);
2256 sf.AddrFrame.Offset = context.Ebp;
2257 sf.AddrFrame.Mode = AddrModeFlat;
2258 sf.AddrPC.Offset = context.Eip;
2259 sf.AddrPC.Mode = AddrModeFlat;
2260 dwImageType = IMAGE_FILE_MACHINE_I386;
2262 # error You need to fill in the STACKFRAME structure for your architecture
2265 while (pStackWalk(dwImageType, GetCurrentProcess(),
2266 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2267 pSymGetModuleBase, NULL))
2270 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2271 DWORD dwDisplacement;
2273 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2274 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2276 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2277 &dwDisplacement, pSymbol))
2279 IMAGEHLP_MODULE ModuleInfo;
2280 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2282 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2284 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2286 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2287 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2289 else if (dwDisplacement)
2290 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2292 DPRINTF("4\t%s\n", pSymbol->Name);
2295 ResumeThread(hThread);
2298 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2300 dump_backtrace_for_thread((HANDLE)lpParameter);
2304 /* cannot get valid context from current thread, so we have to execute
2305 * backtrace from another thread */
2306 static void dump_backtrace()
2308 HANDLE hCurrentThread;
2311 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2312 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2313 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2315 WaitForSingleObject(hThread, INFINITE);
2316 CloseHandle(hThread);
2317 CloseHandle(hCurrentThread);
2320 void _dbus_print_backtrace(void)
2326 void _dbus_print_backtrace(void)
2328 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2332 static dbus_uint32_t fromAscii(char ascii)
2334 if(ascii >= '0' && ascii <= '9')
2336 if(ascii >= 'A' && ascii <= 'F')
2337 return ascii - 'A' + 10;
2338 if(ascii >= 'a' && ascii <= 'f')
2339 return ascii - 'a' + 10;
2343 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2344 dbus_bool_t create_if_not_found,
2351 HW_PROFILE_INFOA info;
2352 char *lpc = &info.szHwProfileGuid[0];
2355 // the hw-profile guid lives long enough
2356 if(!GetCurrentHwProfileA(&info))
2358 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2362 // Form: {12340001-4980-1920-6788-123456789012}
2365 u = ((fromAscii(lpc[0]) << 0) |
2366 (fromAscii(lpc[1]) << 4) |
2367 (fromAscii(lpc[2]) << 8) |
2368 (fromAscii(lpc[3]) << 12) |
2369 (fromAscii(lpc[4]) << 16) |
2370 (fromAscii(lpc[5]) << 20) |
2371 (fromAscii(lpc[6]) << 24) |
2372 (fromAscii(lpc[7]) << 28));
2373 machine_id->as_uint32s[0] = u;
2377 u = ((fromAscii(lpc[0]) << 0) |
2378 (fromAscii(lpc[1]) << 4) |
2379 (fromAscii(lpc[2]) << 8) |
2380 (fromAscii(lpc[3]) << 12) |
2381 (fromAscii(lpc[5]) << 16) |
2382 (fromAscii(lpc[6]) << 20) |
2383 (fromAscii(lpc[7]) << 24) |
2384 (fromAscii(lpc[8]) << 28));
2385 machine_id->as_uint32s[1] = u;
2389 u = ((fromAscii(lpc[0]) << 0) |
2390 (fromAscii(lpc[1]) << 4) |
2391 (fromAscii(lpc[2]) << 8) |
2392 (fromAscii(lpc[3]) << 12) |
2393 (fromAscii(lpc[5]) << 16) |
2394 (fromAscii(lpc[6]) << 20) |
2395 (fromAscii(lpc[7]) << 24) |
2396 (fromAscii(lpc[8]) << 28));
2397 machine_id->as_uint32s[2] = u;
2401 u = ((fromAscii(lpc[0]) << 0) |
2402 (fromAscii(lpc[1]) << 4) |
2403 (fromAscii(lpc[2]) << 8) |
2404 (fromAscii(lpc[3]) << 12) |
2405 (fromAscii(lpc[4]) << 16) |
2406 (fromAscii(lpc[5]) << 20) |
2407 (fromAscii(lpc[6]) << 24) |
2408 (fromAscii(lpc[7]) << 28));
2409 machine_id->as_uint32s[3] = u;
2415 HANDLE _dbus_global_lock (const char *mutexname)
2420 mutex = CreateMutex( NULL, FALSE, mutexname );
2426 gotMutex = WaitForSingleObject( mutex, INFINITE );
2429 case WAIT_ABANDONED:
2430 ReleaseMutex (mutex);
2431 CloseHandle (mutex);
2442 void _dbus_global_unlock (HANDLE mutex)
2444 ReleaseMutex (mutex);
2445 CloseHandle (mutex);
2448 // for proper cleanup in dbus-daemon
2449 static HANDLE hDBusDaemonMutex = NULL;
2450 static HANDLE hDBusSharedMem = NULL;
2451 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2452 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2453 // sync _dbus_get_autolaunch_address
2454 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2455 // mutex to determine if dbus-daemon is already started (per user)
2456 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2457 // named shm for dbus adress info (per user)
2459 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfoDebug";
2461 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2466 _dbus_daemon_publish_session_bus_address (const char* address)
2469 char *shared_addr = NULL;
2472 _dbus_assert (address);
2473 // before _dbus_global_lock to keep correct lock/release order
2474 hDBusDaemonMutex = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2475 ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
2476 if ( ret != WAIT_OBJECT_0 ) {
2477 _dbus_warn("Could not lock mutex %s (return code %d). daemon already running? Bus address not published.\n", cDBusDaemonMutex, ret );
2481 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2482 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2485 hDBusSharedMem = CreateFileMapping( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2486 0, strlen( address ) + 1, cDBusDaemonAddressInfo );
2487 _dbus_assert( hDBusSharedMem );
2489 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2491 _dbus_assert (shared_addr);
2493 strcpy( shared_addr, address);
2496 UnmapViewOfFile( shared_addr );
2498 _dbus_global_unlock( lock );
2502 _dbus_daemon_unpublish_session_bus_address (void)
2506 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2507 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2509 CloseHandle( hDBusSharedMem );
2511 hDBusSharedMem = NULL;
2513 ReleaseMutex( hDBusDaemonMutex );
2515 CloseHandle( hDBusDaemonMutex );
2517 hDBusDaemonMutex = NULL;
2519 _dbus_global_unlock( lock );
2523 _dbus_get_autolaunch_shm (DBusString *address)
2531 // we know that dbus-daemon is available, so we wait until shm is available
2532 sharedMem = OpenFileMapping( FILE_MAP_READ, FALSE, cDBusDaemonAddressInfo );
2533 if( sharedMem == 0 )
2535 if ( sharedMem != 0)
2539 if( sharedMem == 0 )
2542 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2547 _dbus_string_init( address );
2549 _dbus_string_append( address, shared_addr );
2552 UnmapViewOfFile( shared_addr );
2554 CloseHandle( sharedMem );
2560 _dbus_daemon_already_runs (DBusString *address)
2564 dbus_bool_t bRet = TRUE;
2566 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2567 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2570 daemon = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2571 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2573 ReleaseMutex (daemon);
2574 CloseHandle (daemon);
2576 _dbus_global_unlock( lock );
2581 bRet = _dbus_get_autolaunch_shm( address );
2584 CloseHandle ( daemon );
2586 _dbus_global_unlock( lock );
2592 _dbus_get_autolaunch_address (DBusString *address,
2597 PROCESS_INFORMATION pi;
2598 dbus_bool_t retval = FALSE;
2600 char dbus_exe_path[MAX_PATH];
2601 char dbus_args[MAX_PATH * 2];
2602 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2604 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2606 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2608 if (_dbus_daemon_already_runs(address))
2610 _dbus_verbose("found already running dbus daemon\n");
2615 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2617 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2618 printf ("or start the daemon manually\n\n");
2624 ZeroMemory( &si, sizeof(si) );
2626 ZeroMemory( &pi, sizeof(pi) );
2628 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2630 // argv[i] = "--config-file=bus\\session.conf";
2631 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2632 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2635 retval = _dbus_get_autolaunch_shm( address );
2638 if (retval == FALSE)
2639 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2643 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2645 _DBUS_ASSERT_ERROR_IS_SET (error);
2647 _dbus_global_unlock (mutex);
2653 /** Makes the file readable by every user in the system.
2655 * @param filename the filename
2656 * @param error error location
2657 * @returns #TRUE if the file's permissions could be changed.
2660 _dbus_make_file_world_readable(const DBusString *filename,
2668 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2669 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2672 * Returns the standard directories for a session bus to look for service
2675 * On Windows this should be data directories:
2677 * %CommonProgramFiles%/dbus
2683 * @param dirs the directory list we are returning
2684 * @returns #FALSE on OOM
2688 _dbus_get_standard_session_servicedirs (DBusList **dirs)
2690 const char *common_progs;
2691 DBusString servicedir_path;
2693 if (!_dbus_string_init (&servicedir_path))
2696 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR _DBUS_PATH_SEPARATOR))
2699 common_progs = _dbus_getenv ("CommonProgramFiles");
2701 if (common_progs != NULL)
2703 if (!_dbus_string_append (&servicedir_path, common_progs))
2706 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2710 if (!_dbus_split_paths_and_append (&servicedir_path,
2711 DBUS_STANDARD_SESSION_SERVICEDIR,
2715 _dbus_string_free (&servicedir_path);
2719 _dbus_string_free (&servicedir_path);
2724 * Returns the standard directories for a system bus to look for service
2727 * On UNIX this should be the standard xdg freedesktop.org data directories:
2729 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
2735 * On Windows there is no system bus and this function can return nothing.
2737 * @param dirs the directory list we are returning
2738 * @returns #FALSE on OOM
2742 _dbus_get_standard_system_servicedirs (DBusList **dirs)
2748 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
2751 * Atomically increments an integer
2753 * @param atomic pointer to the integer to increment
2754 * @returns the value before incrementing
2758 _dbus_atomic_inc (DBusAtomic *atomic)
2760 // +/- 1 is needed here!
2761 // no volatile argument with mingw
2762 return InterlockedIncrement (&atomic->value) - 1;
2766 * Atomically decrement an integer
2768 * @param atomic pointer to the integer to decrement
2769 * @returns the value before decrementing
2773 _dbus_atomic_dec (DBusAtomic *atomic)
2775 // +/- 1 is needed here!
2776 // no volatile argument with mingw
2777 return InterlockedDecrement (&atomic->value) + 1;
2780 #endif /* asserts or tests enabled */
2783 * Called when the bus daemon is signaled to reload its configuration; any
2784 * caches should be nuked. Of course any caches that need explicit reload
2785 * are probably broken, but c'est la vie.
2790 _dbus_flush_caches (void)
2795 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
2796 * for Winsock so is abstracted)
2798 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
2801 _dbus_get_is_errno_eagain_or_ewouldblock (void)
2803 return errno == WSAEWOULDBLOCK;
2807 * return the absolute path of the dbus installation
2809 * @param s buffer for installation path
2810 * @param len length of buffer
2811 * @returns #FALSE on failure
2814 _dbus_get_install_root(char *prefix, int len)
2816 //To find the prefix, we cut the filename and also \bin\ if present
2822 pathLength = GetModuleFileName(_dbus_win_get_dll_hmodule(), prefix, len);
2823 if ( pathLength == 0 || GetLastError() != 0 ) {
2827 lastSlash = _mbsrchr(prefix, '\\');
2828 if (lastSlash == NULL) {
2832 //cut off binary name
2835 //cut possible "\\bin"
2837 //this fails if we are in a double-byte system codepage and the
2838 //folder's name happens to end with the *bytes*
2839 //"\\bin"... (I.e. the second byte of some Han character and then
2840 //the Latin "bin", but that is not likely I think...
2841 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
2843 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
2845 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
2852 find config file either from installation or build root according to
2853 the following path layout
2855 bin/dbus-daemon[d].exe
2856 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
2857 (the former above is what dbus4win uses, the latter above is
2858 what a "normal" Unix-style "make install" uses)
2861 bin/dbus-daemon[d].exe
2862 bus/<config-file>.conf
2865 _dbus_get_config_file_name(DBusString *config_file, char *s)
2867 char path[MAX_PATH*2];
2868 int path_size = sizeof(path);
2870 if (!_dbus_get_install_root(path,path_size))
2873 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
2875 strcat(path,"etc\\");
2877 if (_dbus_file_exists(path))
2879 // find path from executable
2880 if (!_dbus_string_append (config_file, path))
2885 if (!_dbus_get_install_root(path,path_size))
2887 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
2889 strcat(path,"etc\\dbus-1\\");
2892 if (_dbus_file_exists(path))
2894 if (!_dbus_string_append (config_file, path))
2899 if (!_dbus_get_install_root(path,path_size))
2901 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
2903 strcat(path,"bus\\");
2906 if (_dbus_file_exists(path))
2908 if (!_dbus_string_append (config_file, path))
2917 * Append the absolute path of the system.conf file
2918 * (there is no system bus on Windows so this can just
2919 * return FALSE and print a warning or something)
2921 * @param str the string to append to
2922 * @returns #FALSE if no memory
2925 _dbus_append_system_config_file (DBusString *str)
2927 return _dbus_get_config_file_name(str, "system.conf");
2931 * Append the absolute path of the session.conf file.
2933 * @param str the string to append to
2934 * @returns #FALSE if no memory
2937 _dbus_append_session_config_file (DBusString *str)
2939 return _dbus_get_config_file_name(str, "session.conf");
2942 /* See comment in dbus-sysdeps-unix.c */
2944 _dbus_lookup_session_address (dbus_bool_t *supported,
2945 DBusString *address,
2948 /* Probably fill this in with something based on COM? */
2954 * Appends the directory in which a keyring for the given credentials
2955 * should be stored. The credentials should have either a Windows or
2956 * UNIX user in them. The directory should be an absolute path.
2958 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
2959 * be something else, since the dotfile convention is not normal on Windows.
2961 * @param directory string to append directory to
2962 * @param credentials credentials the directory should be for
2964 * @returns #FALSE on no memory
2967 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
2968 DBusCredentials *credentials)
2973 const char *homepath;
2975 _dbus_assert (credentials != NULL);
2976 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
2978 if (!_dbus_string_init (&homedir))
2981 homepath = _dbus_getenv("HOMEPATH");
2982 if (homepath != NULL && *homepath != '\0')
2984 _dbus_string_append(&homedir,homepath);
2987 #ifdef DBUS_BUILD_TESTS
2989 const char *override;
2991 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
2992 if (override != NULL && *override != '\0')
2994 _dbus_string_set_length (&homedir, 0);
2995 if (!_dbus_string_append (&homedir, override))
2998 _dbus_verbose ("Using fake homedir for testing: %s\n",
2999 _dbus_string_get_const_data (&homedir));
3003 static dbus_bool_t already_warned = FALSE;
3004 if (!already_warned)
3006 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3007 already_warned = TRUE;
3013 _dbus_string_init_const (&dotdir, ".dbus-keyrings");
3014 if (!_dbus_concat_dir_and_file (&homedir,
3018 if (!_dbus_string_copy (&homedir, 0,
3019 directory, _dbus_string_get_length (directory))) {
3023 _dbus_string_free (&homedir);
3027 _dbus_string_free (&homedir);
3031 /** Checks if a file exists
3033 * @param file full path to the file
3034 * @returns #TRUE if file exists
3037 _dbus_file_exists (const char *file)
3039 DWORD attributes = GetFileAttributes (file);
3041 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3048 * A wrapper around strerror() because some platforms
3049 * may be lame and not have strerror().
3051 * @param error_number errno.
3052 * @returns error description.
3055 _dbus_strerror (int error_number)
3063 switch (error_number)
3066 return "Interrupted function call";
3068 return "Permission denied";
3070 return "Bad address";
3072 return "Invalid argument";
3074 return "Too many open files";
3075 case WSAEWOULDBLOCK:
3076 return "Resource temporarily unavailable";
3077 case WSAEINPROGRESS:
3078 return "Operation now in progress";
3080 return "Operation already in progress";
3082 return "Socket operation on nonsocket";
3083 case WSAEDESTADDRREQ:
3084 return "Destination address required";
3086 return "Message too long";
3088 return "Protocol wrong type for socket";
3089 case WSAENOPROTOOPT:
3090 return "Bad protocol option";
3091 case WSAEPROTONOSUPPORT:
3092 return "Protocol not supported";
3093 case WSAESOCKTNOSUPPORT:
3094 return "Socket type not supported";
3096 return "Operation not supported";
3097 case WSAEPFNOSUPPORT:
3098 return "Protocol family not supported";
3099 case WSAEAFNOSUPPORT:
3100 return "Address family not supported by protocol family";
3102 return "Address already in use";
3103 case WSAEADDRNOTAVAIL:
3104 return "Cannot assign requested address";
3106 return "Network is down";
3107 case WSAENETUNREACH:
3108 return "Network is unreachable";
3110 return "Network dropped connection on reset";
3111 case WSAECONNABORTED:
3112 return "Software caused connection abort";
3114 return "Connection reset by peer";
3116 return "No buffer space available";
3118 return "Socket is already connected";
3120 return "Socket is not connected";
3122 return "Cannot send after socket shutdown";
3124 return "Connection timed out";
3125 case WSAECONNREFUSED:
3126 return "Connection refused";
3128 return "Host is down";
3129 case WSAEHOSTUNREACH:
3130 return "No route to host";
3132 return "Too many processes";
3134 return "Graceful shutdown in progress";
3135 case WSATYPE_NOT_FOUND:
3136 return "Class type not found";
3137 case WSAHOST_NOT_FOUND:
3138 return "Host not found";
3140 return "Nonauthoritative host not found";
3141 case WSANO_RECOVERY:
3142 return "This is a nonrecoverable error";
3144 return "Valid name, no data record of requested type";
3145 case WSA_INVALID_HANDLE:
3146 return "Specified event object handle is invalid";
3147 case WSA_INVALID_PARAMETER:
3148 return "One or more parameters are invalid";
3149 case WSA_IO_INCOMPLETE:
3150 return "Overlapped I/O event object not in signaled state";
3151 case WSA_IO_PENDING:
3152 return "Overlapped operations will complete later";
3153 case WSA_NOT_ENOUGH_MEMORY:
3154 return "Insufficient memory available";
3155 case WSA_OPERATION_ABORTED:
3156 return "Overlapped operation aborted";
3157 #ifdef WSAINVALIDPROCTABLE
3159 case WSAINVALIDPROCTABLE:
3160 return "Invalid procedure table from service provider";
3162 #ifdef WSAINVALIDPROVIDER
3164 case WSAINVALIDPROVIDER:
3165 return "Invalid service provider version number";
3167 #ifdef WSAPROVIDERFAILEDINIT
3169 case WSAPROVIDERFAILEDINIT:
3170 return "Unable to initialize a service provider";
3173 case WSASYSCALLFAILURE:
3174 return "System call failure";
3176 msg = strerror (error_number);
3185 * Assigns an error name and message corresponding to a Win32 error
3186 * code to a DBusError. Does nothing if error is #NULL.
3188 * @param error the error.
3189 * @param code the Win32 error code
3192 _dbus_win_set_error_from_win_error (DBusError *error,
3197 /* As we want the English message, use the A API */
3198 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3199 FORMAT_MESSAGE_IGNORE_INSERTS |
3200 FORMAT_MESSAGE_FROM_SYSTEM,
3201 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3202 (LPTSTR) &msg, 0, NULL);
3207 msg_copy = dbus_malloc (strlen (msg));
3208 strcpy (msg_copy, msg);
3211 dbus_set_error (error, "win32.error", "%s", msg_copy);
3214 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3218 _dbus_win_warn_win_error (const char *message,
3223 dbus_error_init (&error);
3224 _dbus_win_set_error_from_win_error (&error, code);
3225 _dbus_warn ("%s: %s\n", message, error.message);
3226 dbus_error_free (&error);
3230 * Removes a directory; Directory must be empty
3232 * @param filename directory filename
3233 * @param error initialized error object
3234 * @returns #TRUE on success
3237 _dbus_delete_directory (const DBusString *filename,
3240 const char *filename_c;
3242 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3244 filename_c = _dbus_string_get_const_data (filename);
3246 if (_rmdir (filename_c) != 0)
3248 dbus_set_error (error, DBUS_ERROR_FAILED,
3249 "Failed to remove directory %s: %s\n",
3250 filename_c, strerror (errno));
3257 /** @} end of sysdeps-win */
3258 /* tests in dbus-sysdeps-util.c */