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
31 #define STRSAFE_NO_DEPRECATE
35 #define _WIN32_WINNT 0x0501
39 #include "dbus-internals.h"
40 #include "dbus-sysdeps.h"
41 #include "dbus-threads.h"
42 #include "dbus-protocol.h"
43 #include "dbus-string.h"
44 #include "dbus-sysdeps-win.h"
45 #include "dbus-protocol.h"
46 #include "dbus-hash.h"
47 #include "dbus-sockets-win.h"
48 #include "dbus-list.h"
49 #include "dbus-nonce.h"
50 #include "dbus-credentials.h"
56 /* Declarations missing in mingw's headers */
57 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
58 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
70 #include <sys/types.h>
73 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
80 #endif // HAVE_WSPIAPI_H
86 typedef int socklen_t;
89 _dbus_win_error_string (int error_number)
93 FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
94 FORMAT_MESSAGE_IGNORE_INSERTS |
95 FORMAT_MESSAGE_FROM_SYSTEM,
96 NULL, error_number, 0,
97 (LPSTR) &msg, 0, NULL);
99 if (msg[strlen (msg) - 1] == '\n')
100 msg[strlen (msg) - 1] = '\0';
101 if (msg[strlen (msg) - 1] == '\r')
102 msg[strlen (msg) - 1] = '\0';
108 _dbus_win_free_error_string (char *string)
119 * Thin wrapper around the read() system call that appends
120 * the data it reads to the DBusString buffer. It appends
121 * up to the given count, and returns the same value
122 * and same errno as read(). The only exception is that
123 * _dbus_read_socket() handles EINTR for you.
124 * _dbus_read_socket() can return ENOMEM, even though
125 * regular UNIX read doesn't.
127 * @param fd the file descriptor to read from
128 * @param buffer the buffer to append data to
129 * @param count the amount of data to read
130 * @returns the number of bytes read or -1
134 _dbus_read_socket (int fd,
142 _dbus_assert (count >= 0);
144 start = _dbus_string_get_length (buffer);
146 if (!_dbus_string_lengthen (buffer, count))
152 data = _dbus_string_get_data_len (buffer, start, count);
156 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
157 bytes_read = recv (fd, data, count, 0);
159 if (bytes_read == SOCKET_ERROR)
161 DBUS_SOCKET_SET_ERRNO();
162 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
166 _dbus_verbose ("recv: = %d\n", bytes_read);
174 /* put length back (note that this doesn't actually realloc anything) */
175 _dbus_string_set_length (buffer, start);
181 /* put length back (doesn't actually realloc) */
182 _dbus_string_set_length (buffer, start + bytes_read);
186 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
194 * Thin wrapper around the write() system call that writes a part of a
195 * DBusString and handles EINTR for you.
197 * @param fd the file descriptor to write
198 * @param buffer the buffer to write data from
199 * @param start the first byte in the buffer to write
200 * @param len the number of bytes to try to write
201 * @returns the number of bytes written or -1 on error
204 _dbus_write_socket (int fd,
205 const DBusString *buffer,
212 data = _dbus_string_get_const_data_len (buffer, start, len);
216 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
217 bytes_written = send (fd, data, len, 0);
219 if (bytes_written == SOCKET_ERROR)
221 DBUS_SOCKET_SET_ERRNO();
222 _dbus_verbose ("send: failed: %s\n", _dbus_strerror (errno));
226 _dbus_verbose ("send: = %d\n", bytes_written);
228 if (bytes_written < 0 && errno == EINTR)
232 if (bytes_written > 0)
233 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
236 return bytes_written;
241 * Closes a file descriptor.
243 * @param fd the file descriptor
244 * @param error error object
245 * @returns #FALSE if error set
248 _dbus_close_socket (int fd,
251 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
254 if (closesocket (fd) == SOCKET_ERROR)
256 DBUS_SOCKET_SET_ERRNO ();
261 dbus_set_error (error, _dbus_error_from_errno (errno),
262 "Could not close socket: socket=%d, , %s",
263 fd, _dbus_strerror (errno));
266 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
272 * Sets the file descriptor to be close
273 * on exec. Should be called for all file
274 * descriptors in D-Bus code.
276 * @param fd the file descriptor
279 _dbus_fd_set_close_on_exec (int handle)
281 if ( !SetHandleInformation( (HANDLE) handle,
282 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
283 0 /*disable both flags*/ ) )
285 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
290 * Sets a file descriptor to be nonblocking.
292 * @param fd the file descriptor.
293 * @param error address of error location.
294 * @returns #TRUE on success.
297 _dbus_set_fd_nonblocking (int handle,
302 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
304 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
306 dbus_set_error (error, _dbus_error_from_errno (WSAGetLastError ()),
307 "Failed to set socket %d:%d to nonblocking: %s", handle,
308 _dbus_strerror (WSAGetLastError ()));
317 * Like _dbus_write() but will use writev() if possible
318 * to write both buffers in sequence. The return value
319 * is the number of bytes written in the first buffer,
320 * plus the number written in the second. If the first
321 * buffer is written successfully and an error occurs
322 * writing the second, the number of bytes in the first
323 * is returned (i.e. the error is ignored), on systems that
324 * don't have writev. Handles EINTR for you.
325 * The second buffer may be #NULL.
327 * @param fd the file descriptor
328 * @param buffer1 first buffer
329 * @param start1 first byte to write in first buffer
330 * @param len1 number of bytes to write from first buffer
331 * @param buffer2 second buffer, or #NULL
332 * @param start2 first byte to write in second buffer
333 * @param len2 number of bytes to write in second buffer
334 * @returns total bytes written from both buffers, or -1 on error
337 _dbus_write_socket_two (int fd,
338 const DBusString *buffer1,
341 const DBusString *buffer2,
351 _dbus_assert (buffer1 != NULL);
352 _dbus_assert (start1 >= 0);
353 _dbus_assert (start2 >= 0);
354 _dbus_assert (len1 >= 0);
355 _dbus_assert (len2 >= 0);
358 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
361 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
369 vectors[0].buf = (char*) data1;
370 vectors[0].len = len1;
371 vectors[1].buf = (char*) data2;
372 vectors[1].len = len2;
376 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
387 DBUS_SOCKET_SET_ERRNO ();
388 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror (errno));
392 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
394 if (bytes_written < 0 && errno == EINTR)
397 return bytes_written;
401 _dbus_socket_is_invalid (int fd)
403 return fd == INVALID_SOCKET ? TRUE : FALSE;
409 * Opens the client side of a Windows named pipe. The connection D-BUS
410 * file descriptor index is returned. It is set up as nonblocking.
412 * @param path the path to named pipe socket
413 * @param error return location for error code
414 * @returns connection D-BUS file descriptor or -1 on error
417 _dbus_connect_named_pipe (const char *path,
420 _dbus_assert_not_reached ("not implemented");
428 _dbus_win_startup_winsock (void)
430 /* Straight from MSDN, deuglified */
432 static dbus_bool_t beenhere = FALSE;
434 WORD wVersionRequested;
441 wVersionRequested = MAKEWORD (2, 0);
443 err = WSAStartup (wVersionRequested, &wsaData);
446 _dbus_assert_not_reached ("Could not initialize WinSock");
450 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
451 * supports versions greater than 2.0 in addition to 2.0, it will
452 * still return 2.0 in wVersion since that is the version we
455 if (LOBYTE (wsaData.wVersion) != 2 ||
456 HIBYTE (wsaData.wVersion) != 0)
458 _dbus_assert_not_reached ("No usable WinSock found");
473 /************************************************************************
477 ************************************************************************/
480 * Measure the message length without terminating nul
482 int _dbus_printf_string_upper_bound (const char *format,
485 /* MSVCRT's vsnprintf semantics are a bit different */
490 bufsize = sizeof (buf);
491 len = _vsnprintf (buf, bufsize - 1, format, args);
493 while (len == -1) /* try again */
499 p = malloc (bufsize);
500 len = _vsnprintf (p, bufsize - 1, format, args);
509 * Returns the UTF-16 form of a UTF-8 string. The result should be
510 * freed with dbus_free() when no longer needed.
512 * @param str the UTF-8 string
513 * @param error return location for error code
516 _dbus_win_utf8_to_utf16 (const char *str,
523 _dbus_string_init_const (&s, str);
525 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
527 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
531 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
535 _dbus_win_set_error_from_win_error (error, GetLastError ());
539 retval = dbus_new (wchar_t, n);
543 _DBUS_SET_OOM (error);
547 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
550 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
558 * Returns the UTF-8 form of a UTF-16 string. The result should be
559 * freed with dbus_free() when no longer needed.
561 * @param str the UTF-16 string
562 * @param error return location for error code
565 _dbus_win_utf16_to_utf8 (const wchar_t *str,
571 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
575 _dbus_win_set_error_from_win_error (error, GetLastError ());
579 retval = dbus_malloc (n);
583 _DBUS_SET_OOM (error);
587 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
590 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
602 /************************************************************************
605 ************************************************************************/
608 _dbus_win_account_to_sid (const wchar_t *waccount,
612 dbus_bool_t retval = FALSE;
613 DWORD sid_length, wdomain_length;
621 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
622 NULL, &wdomain_length, &use) &&
623 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
625 _dbus_win_set_error_from_win_error (error, GetLastError ());
629 *ppsid = dbus_malloc (sid_length);
632 _DBUS_SET_OOM (error);
636 wdomain = dbus_new (wchar_t, wdomain_length);
639 _DBUS_SET_OOM (error);
643 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
644 wdomain, &wdomain_length, &use))
646 _dbus_win_set_error_from_win_error (error, GetLastError ());
650 if (!IsValidSid ((PSID) *ppsid))
652 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
670 /** @} end of sysdeps-win */
674 * The only reason this is separate from _dbus_getpid() is to allow it
675 * on Windows for logging but not for other purposes.
677 * @returns process ID to put in log messages
680 _dbus_pid_for_log (void)
682 return _dbus_getpid ();
686 * @param points to sid buffer, need to be freed with LocalFree()
687 * @returns process sid
690 _dbus_getsid(char **sid)
692 HANDLE process_token = INVALID_HANDLE_VALUE;
693 TOKEN_USER *token_user = NULL;
698 if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
700 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
703 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
704 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
705 || (token_user = alloca (n)) == NULL
706 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
708 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
711 psid = token_user->User.Sid;
712 if (!IsValidSid (psid))
714 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
717 if (!ConvertSidToStringSidA (psid, sid))
719 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
726 if (process_token != INVALID_HANDLE_VALUE)
727 CloseHandle (process_token);
729 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
733 /************************************************************************
737 ************************************************************************/
740 * Creates a full-duplex pipe (as in socketpair()).
741 * Sets both ends of the pipe nonblocking.
743 * @todo libdbus only uses this for the debug-pipe server, so in
744 * principle it could be in dbus-sysdeps-util.c, except that
745 * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
746 * debug-pipe server is used.
748 * @param fd1 return location for one end
749 * @param fd2 return location for the other end
750 * @param blocking #TRUE if pipe should be blocking
751 * @param error error return
752 * @returns #FALSE on failure (if error is set)
755 _dbus_full_duplex_pipe (int *fd1,
757 dbus_bool_t blocking,
760 SOCKET temp, socket1 = -1, socket2 = -1;
761 struct sockaddr_in saddr;
764 fd_set read_set, write_set;
767 _dbus_win_startup_winsock ();
769 temp = socket (AF_INET, SOCK_STREAM, 0);
770 if (temp == INVALID_SOCKET)
772 DBUS_SOCKET_SET_ERRNO ();
777 if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR)
779 DBUS_SOCKET_SET_ERRNO ();
784 saddr.sin_family = AF_INET;
786 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
788 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)))
790 DBUS_SOCKET_SET_ERRNO ();
794 if (listen (temp, 1) == SOCKET_ERROR)
796 DBUS_SOCKET_SET_ERRNO ();
800 len = sizeof (saddr);
801 if (getsockname (temp, (struct sockaddr *)&saddr, &len))
803 DBUS_SOCKET_SET_ERRNO ();
807 socket1 = socket (AF_INET, SOCK_STREAM, 0);
808 if (socket1 == INVALID_SOCKET)
810 DBUS_SOCKET_SET_ERRNO ();
815 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
817 DBUS_SOCKET_SET_ERRNO ();
821 if (connect (socket1, (struct sockaddr *)&saddr, len) != SOCKET_ERROR ||
822 WSAGetLastError () != WSAEWOULDBLOCK)
824 DBUS_SOCKET_SET_ERRNO ();
829 FD_SET (temp, &read_set);
834 if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR)
836 DBUS_SOCKET_SET_ERRNO ();
840 _dbus_assert (FD_ISSET (temp, &read_set));
842 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
843 if (socket2 == INVALID_SOCKET)
845 DBUS_SOCKET_SET_ERRNO ();
849 FD_ZERO (&write_set);
850 FD_SET (socket1, &write_set);
855 if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR)
857 DBUS_SOCKET_SET_ERRNO ();
861 _dbus_assert (FD_ISSET (socket1, &write_set));
866 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
868 DBUS_SOCKET_SET_ERRNO ();
873 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
875 DBUS_SOCKET_SET_ERRNO ();
882 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
884 DBUS_SOCKET_SET_ERRNO ();
892 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
893 *fd1, socket1, *fd2, socket2);
900 closesocket (socket2);
902 closesocket (socket1);
906 dbus_set_error (error, _dbus_error_from_errno (errno),
907 "Could not setup socket pair: %s",
908 _dbus_strerror (errno));
914 * Wrapper for poll().
916 * @param fds the file descriptors to poll
917 * @param n_fds number of descriptors in the array
918 * @param timeout_milliseconds timeout or -1 for infinite
919 * @returns numbers of fds with revents, or <0 on error
922 _dbus_poll (DBusPollFD *fds,
924 int timeout_milliseconds)
926 #define USE_CHRIS_IMPL 0
930 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
931 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
939 #define DBUS_STACK_WSAEVENTS 256
940 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
941 WSAEVENT *pEvents = NULL;
942 if (n_fds > DBUS_STACK_WSAEVENTS)
943 pEvents = calloc(sizeof(WSAEVENT), n_fds);
945 pEvents = eventsOnStack;
948 #ifdef DBUS_ENABLE_VERBOSE_MODE
950 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
951 for (i = 0; i < n_fds; i++)
953 static dbus_bool_t warned = FALSE;
954 DBusPollFD *fdp = &fds[i];
957 if (fdp->events & _DBUS_POLLIN)
958 msgp += sprintf (msgp, "R:%d ", fdp->fd);
960 if (fdp->events & _DBUS_POLLOUT)
961 msgp += sprintf (msgp, "W:%d ", fdp->fd);
963 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
965 // FIXME: more robust code for long msg
966 // create on heap when msg[] becomes too small
967 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
969 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
973 msgp += sprintf (msgp, "\n");
974 _dbus_verbose ("%s",msg);
976 for (i = 0; i < n_fds; i++)
978 DBusPollFD *fdp = &fds[i];
980 long lNetworkEvents = FD_OOB;
982 ev = WSACreateEvent();
984 if (fdp->events & _DBUS_POLLIN)
985 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
987 if (fdp->events & _DBUS_POLLOUT)
988 lNetworkEvents |= FD_WRITE | FD_CONNECT;
990 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
996 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
998 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1000 DBUS_SOCKET_SET_ERRNO ();
1001 if (errno != WSAEWOULDBLOCK)
1002 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", strerror (errno));
1005 else if (ready == WSA_WAIT_TIMEOUT)
1007 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1010 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1013 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1015 for (i = 0; i < n_fds; i++)
1017 DBusPollFD *fdp = &fds[i];
1018 WSANETWORKEVENTS ne;
1022 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1024 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1025 fdp->revents |= _DBUS_POLLIN;
1027 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1028 fdp->revents |= _DBUS_POLLOUT;
1030 if (ne.lNetworkEvents & (FD_OOB))
1031 fdp->revents |= _DBUS_POLLERR;
1033 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1034 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1036 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1037 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1039 if (ne.lNetworkEvents & (FD_OOB))
1040 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1042 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1044 if(ne.lNetworkEvents)
1047 WSAEventSelect(fdp->fd, pEvents[i], 0);
1050 msgp += sprintf (msgp, "\n");
1051 _dbus_verbose ("%s",msg);
1055 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1059 for(i = 0; i < n_fds; i++)
1061 WSACloseEvent(pEvents[i]);
1064 if (n_fds > DBUS_STACK_WSAEVENTS)
1069 #else /* USE_CHRIS_IMPL */
1071 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1072 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1075 fd_set read_set, write_set, err_set;
1081 FD_ZERO (&read_set);
1082 FD_ZERO (&write_set);
1086 #ifdef DBUS_ENABLE_VERBOSE_MODE
1088 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1089 for (i = 0; i < n_fds; i++)
1091 static dbus_bool_t warned = FALSE;
1092 DBusPollFD *fdp = &fds[i];
1095 if (fdp->events & _DBUS_POLLIN)
1096 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1098 if (fdp->events & _DBUS_POLLOUT)
1099 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1101 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1103 // FIXME: more robust code for long msg
1104 // create on heap when msg[] becomes too small
1105 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1107 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1111 msgp += sprintf (msgp, "\n");
1112 _dbus_verbose ("%s",msg);
1114 for (i = 0; i < n_fds; i++)
1116 DBusPollFD *fdp = &fds[i];
1118 if (fdp->events & _DBUS_POLLIN)
1119 FD_SET (fdp->fd, &read_set);
1121 if (fdp->events & _DBUS_POLLOUT)
1122 FD_SET (fdp->fd, &write_set);
1124 FD_SET (fdp->fd, &err_set);
1126 max_fd = MAX (max_fd, fdp->fd);
1130 tv.tv_sec = timeout_milliseconds / 1000;
1131 tv.tv_usec = (timeout_milliseconds % 1000) * 1000;
1133 ready = select (max_fd + 1, &read_set, &write_set, &err_set,
1134 timeout_milliseconds < 0 ? NULL : &tv);
1136 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1138 DBUS_SOCKET_SET_ERRNO ();
1139 if (errno != WSAEWOULDBLOCK)
1140 _dbus_verbose ("select: failed: %s\n", _dbus_strerror (errno));
1142 else if (ready == 0)
1143 _dbus_verbose ("select: = 0\n");
1147 #ifdef DBUS_ENABLE_VERBOSE_MODE
1149 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1151 for (i = 0; i < n_fds; i++)
1153 DBusPollFD *fdp = &fds[i];
1155 if (FD_ISSET (fdp->fd, &read_set))
1156 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1158 if (FD_ISSET (fdp->fd, &write_set))
1159 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1161 if (FD_ISSET (fdp->fd, &err_set))
1162 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1164 msgp += sprintf (msgp, "\n");
1165 _dbus_verbose ("%s",msg);
1168 for (i = 0; i < n_fds; i++)
1170 DBusPollFD *fdp = &fds[i];
1174 if (FD_ISSET (fdp->fd, &read_set))
1175 fdp->revents |= _DBUS_POLLIN;
1177 if (FD_ISSET (fdp->fd, &write_set))
1178 fdp->revents |= _DBUS_POLLOUT;
1180 if (FD_ISSET (fdp->fd, &err_set))
1181 fdp->revents |= _DBUS_POLLERR;
1185 #endif /* USE_CHRIS_IMPL */
1191 /******************************************************************************
1193 Original CVS version of dbus-sysdeps.c
1195 ******************************************************************************/
1196 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1197 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1199 * Copyright (C) 2002, 2003 Red Hat, Inc.
1200 * Copyright (C) 2003 CodeFactory AB
1201 * Copyright (C) 2005 Novell, Inc.
1203 * Licensed under the Academic Free License version 2.1
1205 * This program is free software; you can redistribute it and/or modify
1206 * it under the terms of the GNU General Public License as published by
1207 * the Free Software Foundation; either version 2 of the License, or
1208 * (at your option) any later version.
1210 * This program is distributed in the hope that it will be useful,
1211 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1212 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1213 * GNU General Public License for more details.
1215 * You should have received a copy of the GNU General Public License
1216 * along with this program; if not, write to the Free Software
1217 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1223 * Exit the process, returning the given value.
1225 * @param code the exit code
1228 _dbus_exit (int code)
1234 * Creates a socket and connects to a socket at the given host
1235 * and port. The connection fd is returned, and is set up as
1238 * @param host the host name to connect to
1239 * @param port the port to connect to
1240 * @param family the address family to listen on, NULL for all
1241 * @param error return location for error code
1242 * @returns connection file descriptor or -1 on error
1245 _dbus_connect_tcp_socket (const char *host,
1250 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1254 _dbus_connect_tcp_socket_with_nonce (const char *host,
1257 const char *noncefile,
1261 struct addrinfo hints;
1262 struct addrinfo *ai, *tmp;
1264 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1266 _dbus_win_startup_winsock ();
1268 fd = socket (AF_INET, SOCK_STREAM, 0);
1270 if (DBUS_SOCKET_IS_INVALID (fd))
1272 DBUS_SOCKET_SET_ERRNO ();
1273 dbus_set_error (error,
1274 _dbus_error_from_errno (errno),
1275 "Failed to create socket: %s",
1276 _dbus_strerror (errno));
1281 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1286 hints.ai_family = AF_UNSPEC;
1287 else if (!strcmp(family, "ipv4"))
1288 hints.ai_family = AF_INET;
1289 else if (!strcmp(family, "ipv6"))
1290 hints.ai_family = AF_INET6;
1293 dbus_set_error (error,
1294 _dbus_error_from_errno (errno),
1295 "Unknown address family %s", family);
1298 hints.ai_protocol = IPPROTO_TCP;
1299 hints.ai_socktype = SOCK_STREAM;
1300 #ifdef AI_ADDRCONFIG
1301 hints.ai_flags = AI_ADDRCONFIG;
1306 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0)
1308 dbus_set_error (error,
1309 _dbus_error_from_errno (errno),
1310 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1311 host, port, gai_strerror(res), res);
1319 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1322 dbus_set_error (error,
1323 _dbus_error_from_errno (errno),
1324 "Failed to open socket: %s",
1325 _dbus_strerror (errno));
1328 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1330 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) != 0)
1344 dbus_set_error (error,
1345 _dbus_error_from_errno (errno),
1346 "Failed to connect to socket \"%s:%s\" %s",
1347 host, port, _dbus_strerror(errno));
1351 if ( noncefile != NULL )
1353 DBusString noncefileStr;
1355 if (!_dbus_string_init (&noncefileStr) ||
1356 !_dbus_string_append(&noncefileStr, noncefile))
1359 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1363 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1365 _dbus_string_free (&noncefileStr);
1374 if (!_dbus_set_fd_nonblocking (fd, error) )
1384 * Creates a socket and binds it to the given path, then listens on
1385 * the socket. The socket is set to be nonblocking. In case of port=0
1386 * a random free port is used and returned in the port parameter.
1387 * If inaddr_any is specified, the hostname is ignored.
1389 * @param host the host name to listen on
1390 * @param port the port to listen on, if zero a free port will be used
1391 * @param family the address family to listen on, NULL for all
1392 * @param retport string to return the actual port listened on
1393 * @param fds_p location to store returned file descriptors
1394 * @param error return location for errors
1395 * @returns the number of listening file descriptors or -1 on error
1399 _dbus_listen_tcp_socket (const char *host,
1402 DBusString *retport,
1406 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1407 struct addrinfo hints;
1408 struct addrinfo *ai, *tmp;
1410 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1411 //That's required for family == IPv6(which is the default on Vista if family is not given)
1412 //So we use our own union instead of sockaddr_gen:
1415 struct sockaddr Address;
1416 struct sockaddr_in AddressIn;
1417 struct sockaddr_in6 AddressIn6;
1421 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1423 _dbus_win_startup_winsock ();
1428 hints.ai_family = AF_UNSPEC;
1429 else if (!strcmp(family, "ipv4"))
1430 hints.ai_family = AF_INET;
1431 else if (!strcmp(family, "ipv6"))
1432 hints.ai_family = AF_INET6;
1435 dbus_set_error (error,
1436 _dbus_error_from_errno (errno),
1437 "Unknown address family %s", family);
1441 hints.ai_protocol = IPPROTO_TCP;
1442 hints.ai_socktype = SOCK_STREAM;
1443 #ifdef AI_ADDRCONFIG
1444 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1446 hints.ai_flags = AI_PASSIVE;
1449 redo_lookup_with_port:
1450 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1452 dbus_set_error (error,
1453 _dbus_error_from_errno (errno),
1454 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1455 host ? host : "*", port, gai_strerror(res), res);
1462 int fd = -1, *newlisten_fd;
1463 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1465 dbus_set_error (error,
1466 _dbus_error_from_errno (errno),
1467 "Failed to open socket: %s",
1468 _dbus_strerror (errno));
1471 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1473 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1476 dbus_set_error (error, _dbus_error_from_errno (errno),
1477 "Failed to bind socket \"%s:%s\": %s",
1478 host ? host : "*", port, _dbus_strerror (errno));
1482 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1485 dbus_set_error (error, _dbus_error_from_errno (errno),
1486 "Failed to listen on socket \"%s:%s\": %s",
1487 host ? host : "*", port, _dbus_strerror (errno));
1491 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1495 dbus_set_error (error, _dbus_error_from_errno (errno),
1496 "Failed to allocate file handle array: %s",
1497 _dbus_strerror (errno));
1500 listen_fd = newlisten_fd;
1501 listen_fd[nlisten_fd] = fd;
1504 if (!_dbus_string_get_length(retport))
1506 /* If the user didn't specify a port, or used 0, then
1507 the kernel chooses a port. After the first address
1508 is bound to, we need to force all remaining addresses
1509 to use the same port */
1510 if (!port || !strcmp(port, "0"))
1512 mysockaddr_gen addr;
1513 socklen_t addrlen = sizeof(addr);
1516 if ((res = getsockname(fd, &addr.Address, &addrlen)) != 0)
1518 dbus_set_error (error, _dbus_error_from_errno (errno),
1519 "Failed to resolve port \"%s:%s\": %s (%d)",
1520 host ? host : "*", port, gai_strerror(res), res);
1523 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1524 if (!_dbus_string_append(retport, portbuf))
1526 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1530 /* Release current address list & redo lookup */
1531 port = _dbus_string_get_const_data(retport);
1533 goto redo_lookup_with_port;
1537 if (!_dbus_string_append(retport, port))
1539 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1552 errno = WSAEADDRINUSE;
1553 dbus_set_error (error, _dbus_error_from_errno (errno),
1554 "Failed to bind socket \"%s:%s\": %s",
1555 host ? host : "*", port, _dbus_strerror (errno));
1559 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1561 for (i = 0 ; i < nlisten_fd ; i++)
1563 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1576 for (i = 0 ; i < nlisten_fd ; i++)
1577 closesocket (listen_fd[i]);
1578 dbus_free(listen_fd);
1584 * Accepts a connection on a listening socket.
1585 * Handles EINTR for you.
1587 * @param listen_fd the listen file descriptor
1588 * @returns the connection fd of the client, or -1 on error
1591 _dbus_accept (int listen_fd)
1596 client_fd = accept (listen_fd, NULL, NULL);
1598 if (DBUS_SOCKET_IS_INVALID (client_fd))
1600 DBUS_SOCKET_SET_ERRNO ();
1605 _dbus_verbose ("client fd %d accepted\n", client_fd);
1614 _dbus_send_credentials_socket (int handle,
1617 /* FIXME: for the session bus credentials shouldn't matter (?), but
1618 * for the system bus they are presumably essential. A rough outline
1619 * of a way to implement the credential transfer would be this:
1621 * client waits to *read* a byte.
1623 * server creates a named pipe with a random name, sends a byte
1624 * contining its length, and its name.
1626 * client reads the name, connects to it (using Win32 API).
1628 * server waits for connection to the named pipe, then calls
1629 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1630 * calls RevertToSelf(), closes its handles to the named pipe, and
1631 * is done. (Maybe there is some other way to get the SID of a named
1632 * pipe client without having to use impersonation?)
1634 * client closes its handles and is done.
1636 * Ralf: Why not sending credentials over the given this connection ?
1637 * Using named pipes makes it impossible to be connected from a unix client.
1643 _dbus_string_init_const_len (&buf, "\0", 1);
1645 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1647 if (bytes_written < 0 && errno == EINTR)
1650 if (bytes_written < 0)
1652 dbus_set_error (error, _dbus_error_from_errno (errno),
1653 "Failed to write credentials byte: %s",
1654 _dbus_strerror (errno));
1657 else if (bytes_written == 0)
1659 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1660 "wrote zero bytes writing credentials byte");
1665 _dbus_assert (bytes_written == 1);
1666 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1673 * Reads a single byte which must be nul (an error occurs otherwise),
1674 * and reads unix credentials if available. Fills in pid/uid/gid with
1675 * -1 if no credentials are available. Return value indicates whether
1676 * a byte was read, not whether we got valid credentials. On some
1677 * systems, such as Linux, reading/writing the byte isn't actually
1678 * required, but we do it anyway just to avoid multiple codepaths.
1680 * Fails if no byte is available, so you must select() first.
1682 * The point of the byte is that on some systems we have to
1683 * use sendmsg()/recvmsg() to transmit credentials.
1685 * @param client_fd the client file descriptor
1686 * @param credentials struct to fill with credentials of client
1687 * @param error location to store error code
1688 * @returns #TRUE on success
1691 _dbus_read_credentials_socket (int handle,
1692 DBusCredentials *credentials,
1698 // could fail due too OOM
1699 if (_dbus_string_init(&buf))
1701 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1704 _dbus_verbose("got one zero byte from server");
1706 _dbus_string_free(&buf);
1709 _dbus_credentials_add_from_current_process (credentials);
1710 _dbus_verbose("FIXME: get faked credentials from current process");
1716 * Checks to make sure the given directory is
1717 * private to the user
1719 * @param dir the name of the directory
1720 * @param error error return
1721 * @returns #FALSE on failure
1724 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1726 const char *directory;
1729 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1736 * Appends the given filename to the given directory.
1738 * @todo it might be cute to collapse multiple '/' such as "foo//"
1741 * @param dir the directory name
1742 * @param next_component the filename
1743 * @returns #TRUE on success
1746 _dbus_concat_dir_and_file (DBusString *dir,
1747 const DBusString *next_component)
1749 dbus_bool_t dir_ends_in_slash;
1750 dbus_bool_t file_starts_with_slash;
1752 if (_dbus_string_get_length (dir) == 0 ||
1753 _dbus_string_get_length (next_component) == 0)
1757 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1758 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1760 file_starts_with_slash =
1761 ('/' == _dbus_string_get_byte (next_component, 0) ||
1762 '\\' == _dbus_string_get_byte (next_component, 0));
1764 if (dir_ends_in_slash && file_starts_with_slash)
1766 _dbus_string_shorten (dir, 1);
1768 else if (!(dir_ends_in_slash || file_starts_with_slash))
1770 if (!_dbus_string_append_byte (dir, '\\'))
1774 return _dbus_string_copy (next_component, 0, dir,
1775 _dbus_string_get_length (dir));
1778 /*---------------- DBusCredentials ----------------------------------*/
1781 * Adds the credentials corresponding to the given username.
1783 * @param credentials credentials to fill in
1784 * @param username the username
1785 * @returns #TRUE if the username existed and we got some credentials
1788 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1789 const DBusString *username)
1791 return _dbus_credentials_add_windows_sid (credentials,
1792 _dbus_string_get_const_data(username));
1796 * Adds the credentials of the current process to the
1797 * passed-in credentials object.
1799 * @param credentials credentials to add to
1800 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1804 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1806 dbus_bool_t retval = FALSE;
1809 if (!_dbus_getsid(&sid))
1812 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1815 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1830 * Append to the string the identity we would like to have when we
1831 * authenticate, on UNIX this is the current process UID and on
1832 * Windows something else, probably a Windows SID string. No escaping
1833 * is required, that is done in dbus-auth.c. The username here
1834 * need not be anything human-readable, it can be the machine-readable
1835 * form i.e. a user id.
1837 * @param str the string to append to
1838 * @returns #FALSE on no memory
1839 * @todo to which class belongs this
1842 _dbus_append_user_from_current_process (DBusString *str)
1844 dbus_bool_t retval = FALSE;
1847 if (!_dbus_getsid(&sid))
1850 retval = _dbus_string_append (str,sid);
1857 * Gets our process ID
1858 * @returns process ID
1863 return GetCurrentProcessId ();
1866 /** nanoseconds in a second */
1867 #define NANOSECONDS_PER_SECOND 1000000000
1868 /** microseconds in a second */
1869 #define MICROSECONDS_PER_SECOND 1000000
1870 /** milliseconds in a second */
1871 #define MILLISECONDS_PER_SECOND 1000
1872 /** nanoseconds in a millisecond */
1873 #define NANOSECONDS_PER_MILLISECOND 1000000
1874 /** microseconds in a millisecond */
1875 #define MICROSECONDS_PER_MILLISECOND 1000
1878 * Sleeps the given number of milliseconds.
1879 * @param milliseconds number of milliseconds
1882 _dbus_sleep_milliseconds (int milliseconds)
1884 Sleep (milliseconds);
1889 * Get current time, as in gettimeofday().
1891 * @param tv_sec return location for number of seconds
1892 * @param tv_usec return location for number of microseconds
1895 _dbus_get_current_time (long *tv_sec,
1899 dbus_uint64_t time64;
1901 GetSystemTimeAsFileTime (&ft);
1903 memcpy (&time64, &ft, sizeof (time64));
1905 /* Convert from 100s of nanoseconds since 1601-01-01
1906 * to Unix epoch. Yes, this is Y2038 unsafe.
1908 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1912 *tv_sec = time64 / 1000000;
1915 *tv_usec = time64 % 1000000;
1920 * signal (SIGPIPE, SIG_IGN);
1923 _dbus_disable_sigpipe (void)
1928 * Creates a directory; succeeds if the directory
1929 * is created or already existed.
1931 * @param filename directory filename
1932 * @param error initialized error object
1933 * @returns #TRUE on success
1936 _dbus_create_directory (const DBusString *filename,
1939 const char *filename_c;
1941 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1943 filename_c = _dbus_string_get_const_data (filename);
1945 if (!CreateDirectory (filename_c, NULL))
1947 if (GetLastError () == ERROR_ALREADY_EXISTS)
1950 dbus_set_error (error, DBUS_ERROR_FAILED,
1951 "Failed to create directory %s: %s\n",
1952 filename_c, strerror (errno));
1961 * Generates the given number of random bytes,
1962 * using the best mechanism we can come up with.
1964 * @param str the string
1965 * @param n_bytes the number of random bytes to append to string
1966 * @returns #TRUE on success, #FALSE if no memory
1969 _dbus_generate_random_bytes (DBusString *str,
1976 old_len = _dbus_string_get_length (str);
1978 if (!_dbus_string_lengthen (str, n_bytes))
1981 p = _dbus_string_get_data_len (str, old_len, n_bytes);
1983 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1986 if (!CryptGenRandom (hprov, n_bytes, p))
1988 CryptReleaseContext (hprov, 0);
1992 CryptReleaseContext (hprov, 0);
1998 * Gets the temporary files directory by inspecting the environment variables
1999 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2001 * @returns location of temp directory
2004 _dbus_get_tmpdir(void)
2006 static const char* tmpdir = NULL;
2007 static char buf[1000];
2013 if (!GetTempPath (sizeof (buf), buf))
2015 _dbus_warn ("GetTempPath failed\n");
2019 /* Drop terminating backslash or slash */
2020 last_slash = _mbsrchr (buf, '\\');
2021 if (last_slash > buf && last_slash[1] == '\0')
2022 last_slash[0] = '\0';
2023 last_slash = _mbsrchr (buf, '/');
2024 if (last_slash > buf && last_slash[1] == '\0')
2025 last_slash[0] = '\0';
2030 _dbus_assert(tmpdir != NULL);
2037 * Deletes the given file.
2039 * @param filename the filename
2040 * @param error error location
2042 * @returns #TRUE if unlink() succeeded
2045 _dbus_delete_file (const DBusString *filename,
2048 const char *filename_c;
2050 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2052 filename_c = _dbus_string_get_const_data (filename);
2054 if (_unlink (filename_c) < 0)
2056 dbus_set_error (error, DBUS_ERROR_FAILED,
2057 "Failed to delete file %s: %s\n",
2058 filename_c, strerror (errno));
2065 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_BUILD_TESTS)
2077 * Backtrace Generator
2079 * Copyright 2004 Eric Poech
2080 * Copyright 2004 Robert Shearman
2082 * This library is free software; you can redistribute it and/or
2083 * modify it under the terms of the GNU Lesser General Public
2084 * License as published by the Free Software Foundation; either
2085 * version 2.1 of the License, or (at your option) any later version.
2087 * This library is distributed in the hope that it will be useful,
2088 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2089 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2090 * Lesser General Public License for more details.
2092 * You should have received a copy of the GNU Lesser General Public
2093 * License along with this library; if not, write to the Free Software
2094 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2098 #include <imagehlp.h>
2101 #define DPRINTF _dbus_warn
2109 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2111 //MAKE_FUNCPTR(StackWalk);
2112 //MAKE_FUNCPTR(SymGetModuleBase);
2113 //MAKE_FUNCPTR(SymFunctionTableAccess);
2114 //MAKE_FUNCPTR(SymInitialize);
2115 //MAKE_FUNCPTR(SymGetSymFromAddr);
2116 //MAKE_FUNCPTR(SymGetModuleInfo);
2117 static BOOL (WINAPI *pStackWalk)(
2121 LPSTACKFRAME StackFrame,
2122 PVOID ContextRecord,
2123 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2124 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2125 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2126 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2128 static DWORD (WINAPI *pSymGetModuleBase)(
2132 static PVOID (WINAPI *pSymFunctionTableAccess)(
2136 static BOOL (WINAPI *pSymInitialize)(
2138 PSTR UserSearchPath,
2141 static BOOL (WINAPI *pSymGetSymFromAddr)(
2144 PDWORD Displacement,
2145 PIMAGEHLP_SYMBOL Symbol
2147 static BOOL (WINAPI *pSymGetModuleInfo)(
2150 PIMAGEHLP_MODULE ModuleInfo
2152 static DWORD (WINAPI *pSymSetOptions)(
2157 static BOOL init_backtrace()
2159 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2161 #define GETFUNC(x) \
2162 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2170 // GETFUNC(StackWalk);
2171 // GETFUNC(SymGetModuleBase);
2172 // GETFUNC(SymFunctionTableAccess);
2173 // GETFUNC(SymInitialize);
2174 // GETFUNC(SymGetSymFromAddr);
2175 // GETFUNC(SymGetModuleInfo);
2179 pStackWalk = (BOOL (WINAPI *)(
2183 LPSTACKFRAME StackFrame,
2184 PVOID ContextRecord,
2185 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2186 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2187 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2188 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2189 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2190 pSymGetModuleBase=(DWORD (WINAPI *)(
2193 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2194 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2197 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2198 pSymInitialize = (BOOL (WINAPI *)(
2200 PSTR UserSearchPath,
2202 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2203 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2206 PDWORD Displacement,
2207 PIMAGEHLP_SYMBOL Symbol
2208 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2209 pSymGetModuleInfo = (BOOL (WINAPI *)(
2212 PIMAGEHLP_MODULE ModuleInfo
2213 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2214 pSymSetOptions = (DWORD (WINAPI *)(
2216 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2219 pSymSetOptions(SYMOPT_UNDNAME);
2221 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2226 static void dump_backtrace_for_thread(HANDLE hThread)
2233 if (!init_backtrace())
2236 /* can't use this function for current thread as GetThreadContext
2237 * doesn't support getting context from current thread */
2238 if (hThread == GetCurrentThread())
2241 DPRINTF("Backtrace:\n");
2243 _DBUS_ZERO(context);
2244 context.ContextFlags = CONTEXT_FULL;
2246 SuspendThread(hThread);
2248 if (!GetThreadContext(hThread, &context))
2250 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2251 ResumeThread(hThread);
2258 sf.AddrFrame.Offset = context.Ebp;
2259 sf.AddrFrame.Mode = AddrModeFlat;
2260 sf.AddrPC.Offset = context.Eip;
2261 sf.AddrPC.Mode = AddrModeFlat;
2262 dwImageType = IMAGE_FILE_MACHINE_I386;
2264 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2265 sf.AddrPC.Offset = context.Rip;
2266 sf.AddrPC.Mode = AddrModeFlat;
2267 sf.AddrFrame.Offset = context.Rsp;
2268 sf.AddrFrame.Mode = AddrModeFlat;
2269 sf.AddrStack.Offset = context.Rsp;
2270 sf.AddrStack.Mode = AddrModeFlat;
2272 dwImageType = IMAGE_FILE_MACHINE_IA64;
2273 sf.AddrPC.Offset = context.StIIP;
2274 sf.AddrPC.Mode = AddrModeFlat;
2275 sf.AddrFrame.Offset = context.IntSp;
2276 sf.AddrFrame.Mode = AddrModeFlat;
2277 sf.AddrBStore.Offset= context.RsBSP;
2278 sf.AddrBStore.Mode = AddrModeFlat;
2279 sf.AddrStack.Offset = context.IntSp;
2280 sf.AddrStack.Mode = AddrModeFlat;
2282 # error You need to fill in the STACKFRAME structure for your architecture
2285 while (pStackWalk(dwImageType, GetCurrentProcess(),
2286 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2287 pSymGetModuleBase, NULL))
2290 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2291 DWORD dwDisplacement;
2293 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2294 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2296 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2297 &dwDisplacement, pSymbol))
2299 IMAGEHLP_MODULE ModuleInfo;
2300 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2302 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2304 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2306 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2307 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2309 else if (dwDisplacement)
2310 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2312 DPRINTF("4\t%s\n", pSymbol->Name);
2315 ResumeThread(hThread);
2318 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2320 dump_backtrace_for_thread((HANDLE)lpParameter);
2324 /* cannot get valid context from current thread, so we have to execute
2325 * backtrace from another thread */
2326 static void dump_backtrace()
2328 HANDLE hCurrentThread;
2331 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2332 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2333 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2335 WaitForSingleObject(hThread, INFINITE);
2336 CloseHandle(hThread);
2337 CloseHandle(hCurrentThread);
2340 void _dbus_print_backtrace(void)
2346 void _dbus_print_backtrace(void)
2348 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2352 static dbus_uint32_t fromAscii(char ascii)
2354 if(ascii >= '0' && ascii <= '9')
2356 if(ascii >= 'A' && ascii <= 'F')
2357 return ascii - 'A' + 10;
2358 if(ascii >= 'a' && ascii <= 'f')
2359 return ascii - 'a' + 10;
2363 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2364 dbus_bool_t create_if_not_found,
2371 HW_PROFILE_INFOA info;
2372 char *lpc = &info.szHwProfileGuid[0];
2375 // the hw-profile guid lives long enough
2376 if(!GetCurrentHwProfileA(&info))
2378 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2382 // Form: {12340001-4980-1920-6788-123456789012}
2385 u = ((fromAscii(lpc[0]) << 0) |
2386 (fromAscii(lpc[1]) << 4) |
2387 (fromAscii(lpc[2]) << 8) |
2388 (fromAscii(lpc[3]) << 12) |
2389 (fromAscii(lpc[4]) << 16) |
2390 (fromAscii(lpc[5]) << 20) |
2391 (fromAscii(lpc[6]) << 24) |
2392 (fromAscii(lpc[7]) << 28));
2393 machine_id->as_uint32s[0] = u;
2397 u = ((fromAscii(lpc[0]) << 0) |
2398 (fromAscii(lpc[1]) << 4) |
2399 (fromAscii(lpc[2]) << 8) |
2400 (fromAscii(lpc[3]) << 12) |
2401 (fromAscii(lpc[5]) << 16) |
2402 (fromAscii(lpc[6]) << 20) |
2403 (fromAscii(lpc[7]) << 24) |
2404 (fromAscii(lpc[8]) << 28));
2405 machine_id->as_uint32s[1] = u;
2409 u = ((fromAscii(lpc[0]) << 0) |
2410 (fromAscii(lpc[1]) << 4) |
2411 (fromAscii(lpc[2]) << 8) |
2412 (fromAscii(lpc[3]) << 12) |
2413 (fromAscii(lpc[5]) << 16) |
2414 (fromAscii(lpc[6]) << 20) |
2415 (fromAscii(lpc[7]) << 24) |
2416 (fromAscii(lpc[8]) << 28));
2417 machine_id->as_uint32s[2] = u;
2421 u = ((fromAscii(lpc[0]) << 0) |
2422 (fromAscii(lpc[1]) << 4) |
2423 (fromAscii(lpc[2]) << 8) |
2424 (fromAscii(lpc[3]) << 12) |
2425 (fromAscii(lpc[4]) << 16) |
2426 (fromAscii(lpc[5]) << 20) |
2427 (fromAscii(lpc[6]) << 24) |
2428 (fromAscii(lpc[7]) << 28));
2429 machine_id->as_uint32s[3] = u;
2435 HANDLE _dbus_global_lock (const char *mutexname)
2440 mutex = CreateMutex( NULL, FALSE, mutexname );
2446 gotMutex = WaitForSingleObject( mutex, INFINITE );
2449 case WAIT_ABANDONED:
2450 ReleaseMutex (mutex);
2451 CloseHandle (mutex);
2462 void _dbus_global_unlock (HANDLE mutex)
2464 ReleaseMutex (mutex);
2465 CloseHandle (mutex);
2468 // for proper cleanup in dbus-daemon
2469 static HANDLE hDBusDaemonMutex = NULL;
2470 static HANDLE hDBusSharedMem = NULL;
2471 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2472 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2473 // sync _dbus_get_autolaunch_address
2474 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2475 // mutex to determine if dbus-daemon is already started (per user)
2476 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2477 // named shm for dbus adress info (per user)
2479 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfoDebug";
2481 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2486 _dbus_daemon_publish_session_bus_address (const char* address)
2489 char *shared_addr = NULL;
2492 _dbus_assert (address);
2493 // before _dbus_global_lock to keep correct lock/release order
2494 hDBusDaemonMutex = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2495 ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
2496 if ( ret != WAIT_OBJECT_0 ) {
2497 _dbus_warn("Could not lock mutex %s (return code %d). daemon already running? Bus address not published.\n", cDBusDaemonMutex, ret );
2501 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2502 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2505 hDBusSharedMem = CreateFileMapping( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2506 0, strlen( address ) + 1, cDBusDaemonAddressInfo );
2507 _dbus_assert( hDBusSharedMem );
2509 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2511 _dbus_assert (shared_addr);
2513 strcpy( shared_addr, address);
2516 UnmapViewOfFile( shared_addr );
2518 _dbus_global_unlock( lock );
2522 _dbus_daemon_unpublish_session_bus_address (void)
2526 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2527 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2529 CloseHandle( hDBusSharedMem );
2531 hDBusSharedMem = NULL;
2533 ReleaseMutex( hDBusDaemonMutex );
2535 CloseHandle( hDBusDaemonMutex );
2537 hDBusDaemonMutex = NULL;
2539 _dbus_global_unlock( lock );
2543 _dbus_get_autolaunch_shm (DBusString *address)
2551 // we know that dbus-daemon is available, so we wait until shm is available
2552 sharedMem = OpenFileMapping( FILE_MAP_READ, FALSE, cDBusDaemonAddressInfo );
2553 if( sharedMem == 0 )
2555 if ( sharedMem != 0)
2559 if( sharedMem == 0 )
2562 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2567 _dbus_string_init( address );
2569 _dbus_string_append( address, shared_addr );
2572 UnmapViewOfFile( shared_addr );
2574 CloseHandle( sharedMem );
2580 _dbus_daemon_already_runs (DBusString *address)
2584 dbus_bool_t bRet = TRUE;
2586 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2587 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2590 daemon = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2591 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2593 ReleaseMutex (daemon);
2594 CloseHandle (daemon);
2596 _dbus_global_unlock( lock );
2601 bRet = _dbus_get_autolaunch_shm( address );
2604 CloseHandle ( daemon );
2606 _dbus_global_unlock( lock );
2612 _dbus_get_autolaunch_address (DBusString *address,
2617 PROCESS_INFORMATION pi;
2618 dbus_bool_t retval = FALSE;
2620 char dbus_exe_path[MAX_PATH];
2621 char dbus_args[MAX_PATH * 2];
2622 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2624 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2626 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2628 if (_dbus_daemon_already_runs(address))
2630 _dbus_verbose("found already running dbus daemon\n");
2635 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2637 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2638 printf ("or start the daemon manually\n\n");
2644 ZeroMemory( &si, sizeof(si) );
2646 ZeroMemory( &pi, sizeof(pi) );
2648 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2650 // argv[i] = "--config-file=bus\\session.conf";
2651 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2652 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2654 CloseHandle (pi.hThread);
2655 CloseHandle (pi.hProcess);
2656 retval = _dbus_get_autolaunch_shm( address );
2659 if (retval == FALSE)
2660 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2664 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2666 _DBUS_ASSERT_ERROR_IS_SET (error);
2668 _dbus_global_unlock (mutex);
2674 /** Makes the file readable by every user in the system.
2676 * @param filename the filename
2677 * @param error error location
2678 * @returns #TRUE if the file's permissions could be changed.
2681 _dbus_make_file_world_readable(const DBusString *filename,
2689 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2690 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2693 * Returns the standard directories for a session bus to look for service
2696 * On Windows this should be data directories:
2698 * %CommonProgramFiles%/dbus
2704 * @param dirs the directory list we are returning
2705 * @returns #FALSE on OOM
2709 _dbus_get_standard_session_servicedirs (DBusList **dirs)
2711 const char *common_progs;
2712 DBusString servicedir_path;
2714 if (!_dbus_string_init (&servicedir_path))
2717 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR _DBUS_PATH_SEPARATOR))
2720 common_progs = _dbus_getenv ("CommonProgramFiles");
2722 if (common_progs != NULL)
2724 if (!_dbus_string_append (&servicedir_path, common_progs))
2727 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
2731 if (!_dbus_split_paths_and_append (&servicedir_path,
2732 DBUS_STANDARD_SESSION_SERVICEDIR,
2736 _dbus_string_free (&servicedir_path);
2740 _dbus_string_free (&servicedir_path);
2745 * Returns the standard directories for a system bus to look for service
2748 * On UNIX this should be the standard xdg freedesktop.org data directories:
2750 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
2756 * On Windows there is no system bus and this function can return nothing.
2758 * @param dirs the directory list we are returning
2759 * @returns #FALSE on OOM
2763 _dbus_get_standard_system_servicedirs (DBusList **dirs)
2769 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
2772 * Atomically increments an integer
2774 * @param atomic pointer to the integer to increment
2775 * @returns the value before incrementing
2779 _dbus_atomic_inc (DBusAtomic *atomic)
2781 // +/- 1 is needed here!
2782 // no volatile argument with mingw
2783 return InterlockedIncrement (&atomic->value) - 1;
2787 * Atomically decrement an integer
2789 * @param atomic pointer to the integer to decrement
2790 * @returns the value before decrementing
2794 _dbus_atomic_dec (DBusAtomic *atomic)
2796 // +/- 1 is needed here!
2797 // no volatile argument with mingw
2798 return InterlockedDecrement (&atomic->value) + 1;
2801 #endif /* asserts or tests enabled */
2804 * Called when the bus daemon is signaled to reload its configuration; any
2805 * caches should be nuked. Of course any caches that need explicit reload
2806 * are probably broken, but c'est la vie.
2811 _dbus_flush_caches (void)
2816 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
2817 * for Winsock so is abstracted)
2819 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
2822 _dbus_get_is_errno_eagain_or_ewouldblock (void)
2824 return errno == WSAEWOULDBLOCK;
2828 * return the absolute path of the dbus installation
2830 * @param s buffer for installation path
2831 * @param len length of buffer
2832 * @returns #FALSE on failure
2835 _dbus_get_install_root(char *prefix, int len)
2837 //To find the prefix, we cut the filename and also \bin\ if present
2843 pathLength = GetModuleFileName(_dbus_win_get_dll_hmodule(), prefix, len);
2844 if ( pathLength == 0 || GetLastError() != 0 ) {
2848 lastSlash = _mbsrchr(prefix, '\\');
2849 if (lastSlash == NULL) {
2853 //cut off binary name
2856 //cut possible "\\bin"
2858 //this fails if we are in a double-byte system codepage and the
2859 //folder's name happens to end with the *bytes*
2860 //"\\bin"... (I.e. the second byte of some Han character and then
2861 //the Latin "bin", but that is not likely I think...
2862 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
2864 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
2866 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
2873 find config file either from installation or build root according to
2874 the following path layout
2876 bin/dbus-daemon[d].exe
2877 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
2878 (the former above is what dbus4win uses, the latter above is
2879 what a "normal" Unix-style "make install" uses)
2882 bin/dbus-daemon[d].exe
2883 bus/<config-file>.conf
2886 _dbus_get_config_file_name(DBusString *config_file, char *s)
2888 char path[MAX_PATH*2];
2889 int path_size = sizeof(path);
2891 if (!_dbus_get_install_root(path,path_size))
2894 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
2896 strcat(path,"etc\\");
2898 if (_dbus_file_exists(path))
2900 // find path from executable
2901 if (!_dbus_string_append (config_file, path))
2906 if (!_dbus_get_install_root(path,path_size))
2908 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
2910 strcat(path,"etc\\dbus-1\\");
2913 if (_dbus_file_exists(path))
2915 if (!_dbus_string_append (config_file, path))
2920 if (!_dbus_get_install_root(path,path_size))
2922 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
2924 strcat(path,"bus\\");
2927 if (_dbus_file_exists(path))
2929 if (!_dbus_string_append (config_file, path))
2938 * Append the absolute path of the system.conf file
2939 * (there is no system bus on Windows so this can just
2940 * return FALSE and print a warning or something)
2942 * @param str the string to append to
2943 * @returns #FALSE if no memory
2946 _dbus_append_system_config_file (DBusString *str)
2948 return _dbus_get_config_file_name(str, "system.conf");
2952 * Append the absolute path of the session.conf file.
2954 * @param str the string to append to
2955 * @returns #FALSE if no memory
2958 _dbus_append_session_config_file (DBusString *str)
2960 return _dbus_get_config_file_name(str, "session.conf");
2963 /* See comment in dbus-sysdeps-unix.c */
2965 _dbus_lookup_session_address (dbus_bool_t *supported,
2966 DBusString *address,
2969 /* Probably fill this in with something based on COM? */
2975 * Appends the directory in which a keyring for the given credentials
2976 * should be stored. The credentials should have either a Windows or
2977 * UNIX user in them. The directory should be an absolute path.
2979 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
2980 * be something else, since the dotfile convention is not normal on Windows.
2982 * @param directory string to append directory to
2983 * @param credentials credentials the directory should be for
2985 * @returns #FALSE on no memory
2988 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
2989 DBusCredentials *credentials)
2994 const char *homepath;
2995 const char *homedrive;
2997 _dbus_assert (credentials != NULL);
2998 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3000 if (!_dbus_string_init (&homedir))
3003 homedrive = _dbus_getenv("HOMEDRIVE");
3004 if (homedrive != NULL && *homedrive != '\0')
3006 _dbus_string_append(&homedir,homedrive);
3009 homepath = _dbus_getenv("HOMEPATH");
3010 if (homepath != NULL && *homepath != '\0')
3012 _dbus_string_append(&homedir,homepath);
3015 #ifdef DBUS_BUILD_TESTS
3017 const char *override;
3019 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3020 if (override != NULL && *override != '\0')
3022 _dbus_string_set_length (&homedir, 0);
3023 if (!_dbus_string_append (&homedir, override))
3026 _dbus_verbose ("Using fake homedir for testing: %s\n",
3027 _dbus_string_get_const_data (&homedir));
3031 static dbus_bool_t already_warned = FALSE;
3032 if (!already_warned)
3034 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3035 already_warned = TRUE;
3041 _dbus_string_init_const (&dotdir, ".dbus-keyrings");
3042 if (!_dbus_concat_dir_and_file (&homedir,
3046 if (!_dbus_string_copy (&homedir, 0,
3047 directory, _dbus_string_get_length (directory))) {
3051 _dbus_string_free (&homedir);
3055 _dbus_string_free (&homedir);
3059 /** Checks if a file exists
3061 * @param file full path to the file
3062 * @returns #TRUE if file exists
3065 _dbus_file_exists (const char *file)
3067 DWORD attributes = GetFileAttributes (file);
3069 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3076 * A wrapper around strerror() because some platforms
3077 * may be lame and not have strerror().
3079 * @param error_number errno.
3080 * @returns error description.
3083 _dbus_strerror (int error_number)
3091 switch (error_number)
3094 return "Interrupted function call";
3096 return "Permission denied";
3098 return "Bad address";
3100 return "Invalid argument";
3102 return "Too many open files";
3103 case WSAEWOULDBLOCK:
3104 return "Resource temporarily unavailable";
3105 case WSAEINPROGRESS:
3106 return "Operation now in progress";
3108 return "Operation already in progress";
3110 return "Socket operation on nonsocket";
3111 case WSAEDESTADDRREQ:
3112 return "Destination address required";
3114 return "Message too long";
3116 return "Protocol wrong type for socket";
3117 case WSAENOPROTOOPT:
3118 return "Bad protocol option";
3119 case WSAEPROTONOSUPPORT:
3120 return "Protocol not supported";
3121 case WSAESOCKTNOSUPPORT:
3122 return "Socket type not supported";
3124 return "Operation not supported";
3125 case WSAEPFNOSUPPORT:
3126 return "Protocol family not supported";
3127 case WSAEAFNOSUPPORT:
3128 return "Address family not supported by protocol family";
3130 return "Address already in use";
3131 case WSAEADDRNOTAVAIL:
3132 return "Cannot assign requested address";
3134 return "Network is down";
3135 case WSAENETUNREACH:
3136 return "Network is unreachable";
3138 return "Network dropped connection on reset";
3139 case WSAECONNABORTED:
3140 return "Software caused connection abort";
3142 return "Connection reset by peer";
3144 return "No buffer space available";
3146 return "Socket is already connected";
3148 return "Socket is not connected";
3150 return "Cannot send after socket shutdown";
3152 return "Connection timed out";
3153 case WSAECONNREFUSED:
3154 return "Connection refused";
3156 return "Host is down";
3157 case WSAEHOSTUNREACH:
3158 return "No route to host";
3160 return "Too many processes";
3162 return "Graceful shutdown in progress";
3163 case WSATYPE_NOT_FOUND:
3164 return "Class type not found";
3165 case WSAHOST_NOT_FOUND:
3166 return "Host not found";
3168 return "Nonauthoritative host not found";
3169 case WSANO_RECOVERY:
3170 return "This is a nonrecoverable error";
3172 return "Valid name, no data record of requested type";
3173 case WSA_INVALID_HANDLE:
3174 return "Specified event object handle is invalid";
3175 case WSA_INVALID_PARAMETER:
3176 return "One or more parameters are invalid";
3177 case WSA_IO_INCOMPLETE:
3178 return "Overlapped I/O event object not in signaled state";
3179 case WSA_IO_PENDING:
3180 return "Overlapped operations will complete later";
3181 case WSA_NOT_ENOUGH_MEMORY:
3182 return "Insufficient memory available";
3183 case WSA_OPERATION_ABORTED:
3184 return "Overlapped operation aborted";
3185 #ifdef WSAINVALIDPROCTABLE
3187 case WSAINVALIDPROCTABLE:
3188 return "Invalid procedure table from service provider";
3190 #ifdef WSAINVALIDPROVIDER
3192 case WSAINVALIDPROVIDER:
3193 return "Invalid service provider version number";
3195 #ifdef WSAPROVIDERFAILEDINIT
3197 case WSAPROVIDERFAILEDINIT:
3198 return "Unable to initialize a service provider";
3201 case WSASYSCALLFAILURE:
3202 return "System call failure";
3204 msg = strerror (error_number);
3213 * Assigns an error name and message corresponding to a Win32 error
3214 * code to a DBusError. Does nothing if error is #NULL.
3216 * @param error the error.
3217 * @param code the Win32 error code
3220 _dbus_win_set_error_from_win_error (DBusError *error,
3225 /* As we want the English message, use the A API */
3226 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3227 FORMAT_MESSAGE_IGNORE_INSERTS |
3228 FORMAT_MESSAGE_FROM_SYSTEM,
3229 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3230 (LPTSTR) &msg, 0, NULL);
3235 msg_copy = dbus_malloc (strlen (msg));
3236 strcpy (msg_copy, msg);
3239 dbus_set_error (error, "win32.error", "%s", msg_copy);
3242 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3246 _dbus_win_warn_win_error (const char *message,
3251 dbus_error_init (&error);
3252 _dbus_win_set_error_from_win_error (&error, code);
3253 _dbus_warn ("%s: %s\n", message, error.message);
3254 dbus_error_free (&error);
3258 * Removes a directory; Directory must be empty
3260 * @param filename directory filename
3261 * @param error initialized error object
3262 * @returns #TRUE on success
3265 _dbus_delete_directory (const DBusString *filename,
3268 const char *filename_c;
3270 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3272 filename_c = _dbus_string_get_const_data (filename);
3274 if (_rmdir (filename_c) != 0)
3276 dbus_set_error (error, DBUS_ERROR_FAILED,
3277 "Failed to remove directory %s: %s\n",
3278 filename_c, strerror (errno));
3285 /** @} end of sysdeps-win */
3286 /* tests in dbus-sysdeps-util.c */