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() handles EINTR for you. _dbus_read() can
122 * return ENOMEM, even though regular UNIX read doesn't.
124 * @param fd the file descriptor to read from
125 * @param buffer the buffer to append data to
126 * @param count the amount of data to read
127 * @returns the number of bytes read or -1
131 _dbus_read_socket (int fd,
139 _dbus_assert (count >= 0);
141 start = _dbus_string_get_length (buffer);
143 if (!_dbus_string_lengthen (buffer, count))
149 data = _dbus_string_get_data_len (buffer, start, count);
153 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
154 bytes_read = recv (fd, data, count, 0);
156 if (bytes_read == SOCKET_ERROR)
158 DBUS_SOCKET_SET_ERRNO();
159 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
163 _dbus_verbose ("recv: = %d\n", bytes_read);
171 /* put length back (note that this doesn't actually realloc anything) */
172 _dbus_string_set_length (buffer, start);
178 /* put length back (doesn't actually realloc) */
179 _dbus_string_set_length (buffer, start + bytes_read);
183 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
191 * Thin wrapper around the write() system call that writes a part of a
192 * DBusString and handles EINTR for you.
194 * @param fd the file descriptor to write
195 * @param buffer the buffer to write data from
196 * @param start the first byte in the buffer to write
197 * @param len the number of bytes to try to write
198 * @returns the number of bytes written or -1 on error
201 _dbus_write_socket (int fd,
202 const DBusString *buffer,
209 data = _dbus_string_get_const_data_len (buffer, start, len);
213 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
214 bytes_written = send (fd, data, len, 0);
216 if (bytes_written == SOCKET_ERROR)
218 DBUS_SOCKET_SET_ERRNO();
219 _dbus_verbose ("send: failed: %s\n", _dbus_strerror (errno));
223 _dbus_verbose ("send: = %d\n", bytes_written);
225 if (bytes_written < 0 && errno == EINTR)
229 if (bytes_written > 0)
230 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
233 return bytes_written;
238 * Closes a file descriptor.
240 * @param fd the file descriptor
241 * @param error error object
242 * @returns #FALSE if error set
245 _dbus_close_socket (int fd,
248 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
251 if (closesocket (fd) == SOCKET_ERROR)
253 DBUS_SOCKET_SET_ERRNO ();
258 dbus_set_error (error, _dbus_error_from_errno (errno),
259 "Could not close socket: socket=%d, , %s",
260 fd, _dbus_strerror (errno));
263 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
269 * Sets the file descriptor to be close
270 * on exec. Should be called for all file
271 * descriptors in D-Bus code.
273 * @param fd the file descriptor
276 _dbus_fd_set_close_on_exec (int handle)
278 if ( !SetHandleInformation( (HANDLE) handle,
279 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
280 0 /*disable both flags*/ ) )
282 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
287 * Sets a file descriptor to be nonblocking.
289 * @param fd the file descriptor.
290 * @param error address of error location.
291 * @returns #TRUE on success.
294 _dbus_set_fd_nonblocking (int handle,
299 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
301 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
303 dbus_set_error (error, _dbus_error_from_errno (WSAGetLastError ()),
304 "Failed to set socket %d:%d to nonblocking: %s", handle,
305 _dbus_strerror (WSAGetLastError ()));
314 * Like _dbus_write() but will use writev() if possible
315 * to write both buffers in sequence. The return value
316 * is the number of bytes written in the first buffer,
317 * plus the number written in the second. If the first
318 * buffer is written successfully and an error occurs
319 * writing the second, the number of bytes in the first
320 * is returned (i.e. the error is ignored), on systems that
321 * don't have writev. Handles EINTR for you.
322 * The second buffer may be #NULL.
324 * @param fd the file descriptor
325 * @param buffer1 first buffer
326 * @param start1 first byte to write in first buffer
327 * @param len1 number of bytes to write from first buffer
328 * @param buffer2 second buffer, or #NULL
329 * @param start2 first byte to write in second buffer
330 * @param len2 number of bytes to write in second buffer
331 * @returns total bytes written from both buffers, or -1 on error
334 _dbus_write_socket_two (int fd,
335 const DBusString *buffer1,
338 const DBusString *buffer2,
348 _dbus_assert (buffer1 != NULL);
349 _dbus_assert (start1 >= 0);
350 _dbus_assert (start2 >= 0);
351 _dbus_assert (len1 >= 0);
352 _dbus_assert (len2 >= 0);
355 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
358 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
366 vectors[0].buf = (char*) data1;
367 vectors[0].len = len1;
368 vectors[1].buf = (char*) data2;
369 vectors[1].len = len2;
373 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
384 DBUS_SOCKET_SET_ERRNO ();
385 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror (errno));
389 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
391 if (bytes_written < 0 && errno == EINTR)
394 return bytes_written;
398 _dbus_socket_is_invalid (int fd)
400 return fd == INVALID_SOCKET ? TRUE : FALSE;
406 * Opens the client side of a Windows named pipe. The connection D-BUS
407 * file descriptor index is returned. It is set up as nonblocking.
409 * @param path the path to named pipe socket
410 * @param error return location for error code
411 * @returns connection D-BUS file descriptor or -1 on error
414 _dbus_connect_named_pipe (const char *path,
417 _dbus_assert_not_reached ("not implemented");
425 _dbus_win_startup_winsock (void)
427 /* Straight from MSDN, deuglified */
429 static dbus_bool_t beenhere = FALSE;
431 WORD wVersionRequested;
438 wVersionRequested = MAKEWORD (2, 0);
440 err = WSAStartup (wVersionRequested, &wsaData);
443 _dbus_assert_not_reached ("Could not initialize WinSock");
447 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
448 * supports versions greater than 2.0 in addition to 2.0, it will
449 * still return 2.0 in wVersion since that is the version we
452 if (LOBYTE (wsaData.wVersion) != 2 ||
453 HIBYTE (wsaData.wVersion) != 0)
455 _dbus_assert_not_reached ("No usable WinSock found");
470 /************************************************************************
474 ************************************************************************/
477 * Measure the message length without terminating nul
479 int _dbus_printf_string_upper_bound (const char *format,
482 /* MSVCRT's vsnprintf semantics are a bit different */
487 bufsize = sizeof (buf);
488 len = _vsnprintf (buf, bufsize - 1, format, args);
490 while (len == -1) /* try again */
496 p = malloc (bufsize);
497 len = _vsnprintf (p, bufsize - 1, format, args);
506 * Returns the UTF-16 form of a UTF-8 string. The result should be
507 * freed with dbus_free() when no longer needed.
509 * @param str the UTF-8 string
510 * @param error return location for error code
513 _dbus_win_utf8_to_utf16 (const char *str,
520 _dbus_string_init_const (&s, str);
522 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
524 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
528 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
532 _dbus_win_set_error_from_win_error (error, GetLastError ());
536 retval = dbus_new (wchar_t, n);
540 _DBUS_SET_OOM (error);
544 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
547 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
555 * Returns the UTF-8 form of a UTF-16 string. The result should be
556 * freed with dbus_free() when no longer needed.
558 * @param str the UTF-16 string
559 * @param error return location for error code
562 _dbus_win_utf16_to_utf8 (const wchar_t *str,
568 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
572 _dbus_win_set_error_from_win_error (error, GetLastError ());
576 retval = dbus_malloc (n);
580 _DBUS_SET_OOM (error);
584 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
587 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
599 /************************************************************************
602 ************************************************************************/
605 _dbus_win_account_to_sid (const wchar_t *waccount,
609 dbus_bool_t retval = FALSE;
610 DWORD sid_length, wdomain_length;
618 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
619 NULL, &wdomain_length, &use) &&
620 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
622 _dbus_win_set_error_from_win_error (error, GetLastError ());
626 *ppsid = dbus_malloc (sid_length);
629 _DBUS_SET_OOM (error);
633 wdomain = dbus_new (wchar_t, wdomain_length);
636 _DBUS_SET_OOM (error);
640 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
641 wdomain, &wdomain_length, &use))
643 _dbus_win_set_error_from_win_error (error, GetLastError ());
647 if (!IsValidSid ((PSID) *ppsid))
649 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
667 /** @} end of sysdeps-win */
671 * The only reason this is separate from _dbus_getpid() is to allow it
672 * on Windows for logging but not for other purposes.
674 * @returns process ID to put in log messages
677 _dbus_pid_for_log (void)
679 return _dbus_getpid ();
683 * @param points to sid buffer, need to be freed with LocalFree()
684 * @returns process sid
687 _dbus_getsid(char **sid)
689 HANDLE process_token = NULL;
690 TOKEN_USER *token_user = NULL;
695 if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
697 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
700 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
701 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
702 || (token_user = alloca (n)) == NULL
703 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
705 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
708 psid = token_user->User.Sid;
709 if (!IsValidSid (psid))
711 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
714 if (!ConvertSidToStringSidA (psid, sid))
716 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
723 if (process_token != NULL)
724 CloseHandle (process_token);
726 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
730 /************************************************************************
734 ************************************************************************/
737 * Creates a full-duplex pipe (as in socketpair()).
738 * Sets both ends of the pipe nonblocking.
740 * @todo libdbus only uses this for the debug-pipe server, so in
741 * principle it could be in dbus-sysdeps-util.c, except that
742 * dbus-sysdeps-util.c isn't in libdbus when tests are enabled and the
743 * debug-pipe server is used.
745 * @param fd1 return location for one end
746 * @param fd2 return location for the other end
747 * @param blocking #TRUE if pipe should be blocking
748 * @param error error return
749 * @returns #FALSE on failure (if error is set)
752 _dbus_full_duplex_pipe (int *fd1,
754 dbus_bool_t blocking,
757 SOCKET temp, socket1 = -1, socket2 = -1;
758 struct sockaddr_in saddr;
761 fd_set read_set, write_set;
764 _dbus_win_startup_winsock ();
766 temp = socket (AF_INET, SOCK_STREAM, 0);
767 if (temp == INVALID_SOCKET)
769 DBUS_SOCKET_SET_ERRNO ();
774 if (ioctlsocket (temp, FIONBIO, &arg) == SOCKET_ERROR)
776 DBUS_SOCKET_SET_ERRNO ();
781 saddr.sin_family = AF_INET;
783 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
785 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)))
787 DBUS_SOCKET_SET_ERRNO ();
791 if (listen (temp, 1) == SOCKET_ERROR)
793 DBUS_SOCKET_SET_ERRNO ();
797 len = sizeof (saddr);
798 if (getsockname (temp, (struct sockaddr *)&saddr, &len))
800 DBUS_SOCKET_SET_ERRNO ();
804 socket1 = socket (AF_INET, SOCK_STREAM, 0);
805 if (socket1 == INVALID_SOCKET)
807 DBUS_SOCKET_SET_ERRNO ();
812 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
814 DBUS_SOCKET_SET_ERRNO ();
818 if (connect (socket1, (struct sockaddr *)&saddr, len) != SOCKET_ERROR ||
819 WSAGetLastError () != WSAEWOULDBLOCK)
821 DBUS_SOCKET_SET_ERRNO ();
826 FD_SET (temp, &read_set);
831 if (select (0, &read_set, NULL, NULL, NULL) == SOCKET_ERROR)
833 DBUS_SOCKET_SET_ERRNO ();
837 _dbus_assert (FD_ISSET (temp, &read_set));
839 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
840 if (socket2 == INVALID_SOCKET)
842 DBUS_SOCKET_SET_ERRNO ();
846 FD_ZERO (&write_set);
847 FD_SET (socket1, &write_set);
852 if (select (0, NULL, &write_set, NULL, NULL) == SOCKET_ERROR)
854 DBUS_SOCKET_SET_ERRNO ();
858 _dbus_assert (FD_ISSET (socket1, &write_set));
863 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
865 DBUS_SOCKET_SET_ERRNO ();
870 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
872 DBUS_SOCKET_SET_ERRNO ();
879 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
881 DBUS_SOCKET_SET_ERRNO ();
889 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
890 *fd1, socket1, *fd2, socket2);
897 closesocket (socket2);
899 closesocket (socket1);
903 dbus_set_error (error, _dbus_error_from_errno (errno),
904 "Could not setup socket pair: %s",
905 _dbus_strerror (errno));
911 * Wrapper for poll().
913 * @param fds the file descriptors to poll
914 * @param n_fds number of descriptors in the array
915 * @param timeout_milliseconds timeout or -1 for infinite
916 * @returns numbers of fds with revents, or <0 on error
919 _dbus_poll (DBusPollFD *fds,
921 int timeout_milliseconds)
923 #define USE_CHRIS_IMPL 0
927 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
928 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
936 #define DBUS_STACK_WSAEVENTS 256
937 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
938 WSAEVENT *pEvents = NULL;
939 if (n_fds > DBUS_STACK_WSAEVENTS)
940 pEvents = calloc(sizeof(WSAEVENT), n_fds);
942 pEvents = eventsOnStack;
945 #ifdef DBUS_ENABLE_VERBOSE_MODE
947 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
948 for (i = 0; i < n_fds; i++)
950 static dbus_bool_t warned = FALSE;
951 DBusPollFD *fdp = &fds[i];
954 if (fdp->events & _DBUS_POLLIN)
955 msgp += sprintf (msgp, "R:%d ", fdp->fd);
957 if (fdp->events & _DBUS_POLLOUT)
958 msgp += sprintf (msgp, "W:%d ", fdp->fd);
960 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
962 // FIXME: more robust code for long msg
963 // create on heap when msg[] becomes too small
964 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
966 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
970 msgp += sprintf (msgp, "\n");
971 _dbus_verbose ("%s",msg);
973 for (i = 0; i < n_fds; i++)
975 DBusPollFD *fdp = &fds[i];
977 long lNetworkEvents = FD_OOB;
979 ev = WSACreateEvent();
981 if (fdp->events & _DBUS_POLLIN)
982 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
984 if (fdp->events & _DBUS_POLLOUT)
985 lNetworkEvents |= FD_WRITE | FD_CONNECT;
987 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
993 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
995 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
997 DBUS_SOCKET_SET_ERRNO ();
998 if (errno != WSAEWOULDBLOCK)
999 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", strerror (errno));
1002 else if (ready == WSA_WAIT_TIMEOUT)
1004 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1007 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1010 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1012 for (i = 0; i < n_fds; i++)
1014 DBusPollFD *fdp = &fds[i];
1015 WSANETWORKEVENTS ne;
1019 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1021 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1022 fdp->revents |= _DBUS_POLLIN;
1024 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1025 fdp->revents |= _DBUS_POLLOUT;
1027 if (ne.lNetworkEvents & (FD_OOB))
1028 fdp->revents |= _DBUS_POLLERR;
1030 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1031 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1033 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1034 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1036 if (ne.lNetworkEvents & (FD_OOB))
1037 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1039 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1041 if(ne.lNetworkEvents)
1044 WSAEventSelect(fdp->fd, pEvents[i], 0);
1047 msgp += sprintf (msgp, "\n");
1048 _dbus_verbose ("%s",msg);
1052 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1056 for(i = 0; i < n_fds; i++)
1058 WSACloseEvent(pEvents[i]);
1061 if (n_fds > DBUS_STACK_WSAEVENTS)
1066 #else /* USE_CHRIS_IMPL */
1068 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1069 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1072 fd_set read_set, write_set, err_set;
1078 FD_ZERO (&read_set);
1079 FD_ZERO (&write_set);
1083 #ifdef DBUS_ENABLE_VERBOSE_MODE
1085 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1086 for (i = 0; i < n_fds; i++)
1088 static dbus_bool_t warned = FALSE;
1089 DBusPollFD *fdp = &fds[i];
1092 if (fdp->events & _DBUS_POLLIN)
1093 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1095 if (fdp->events & _DBUS_POLLOUT)
1096 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1098 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1100 // FIXME: more robust code for long msg
1101 // create on heap when msg[] becomes too small
1102 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1104 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1108 msgp += sprintf (msgp, "\n");
1109 _dbus_verbose ("%s",msg);
1111 for (i = 0; i < n_fds; i++)
1113 DBusPollFD *fdp = &fds[i];
1115 if (fdp->events & _DBUS_POLLIN)
1116 FD_SET (fdp->fd, &read_set);
1118 if (fdp->events & _DBUS_POLLOUT)
1119 FD_SET (fdp->fd, &write_set);
1121 FD_SET (fdp->fd, &err_set);
1123 max_fd = MAX (max_fd, fdp->fd);
1127 tv.tv_sec = timeout_milliseconds / 1000;
1128 tv.tv_usec = (timeout_milliseconds % 1000) * 1000;
1130 ready = select (max_fd + 1, &read_set, &write_set, &err_set,
1131 timeout_milliseconds < 0 ? NULL : &tv);
1133 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1135 DBUS_SOCKET_SET_ERRNO ();
1136 if (errno != WSAEWOULDBLOCK)
1137 _dbus_verbose ("select: failed: %s\n", _dbus_strerror (errno));
1139 else if (ready == 0)
1140 _dbus_verbose ("select: = 0\n");
1144 #ifdef DBUS_ENABLE_VERBOSE_MODE
1146 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1148 for (i = 0; i < n_fds; i++)
1150 DBusPollFD *fdp = &fds[i];
1152 if (FD_ISSET (fdp->fd, &read_set))
1153 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1155 if (FD_ISSET (fdp->fd, &write_set))
1156 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1158 if (FD_ISSET (fdp->fd, &err_set))
1159 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1161 msgp += sprintf (msgp, "\n");
1162 _dbus_verbose ("%s",msg);
1165 for (i = 0; i < n_fds; i++)
1167 DBusPollFD *fdp = &fds[i];
1171 if (FD_ISSET (fdp->fd, &read_set))
1172 fdp->revents |= _DBUS_POLLIN;
1174 if (FD_ISSET (fdp->fd, &write_set))
1175 fdp->revents |= _DBUS_POLLOUT;
1177 if (FD_ISSET (fdp->fd, &err_set))
1178 fdp->revents |= _DBUS_POLLERR;
1182 #endif /* USE_CHRIS_IMPL */
1188 /******************************************************************************
1190 Original CVS version of dbus-sysdeps.c
1192 ******************************************************************************/
1193 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1194 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1196 * Copyright (C) 2002, 2003 Red Hat, Inc.
1197 * Copyright (C) 2003 CodeFactory AB
1198 * Copyright (C) 2005 Novell, Inc.
1200 * Licensed under the Academic Free License version 2.1
1202 * This program is free software; you can redistribute it and/or modify
1203 * it under the terms of the GNU General Public License as published by
1204 * the Free Software Foundation; either version 2 of the License, or
1205 * (at your option) any later version.
1207 * This program is distributed in the hope that it will be useful,
1208 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1209 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1210 * GNU General Public License for more details.
1212 * You should have received a copy of the GNU General Public License
1213 * along with this program; if not, write to the Free Software
1214 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1220 * Exit the process, returning the given value.
1222 * @param code the exit code
1225 _dbus_exit (int code)
1231 * Creates a socket and connects to a socket at the given host
1232 * and port. The connection fd is returned, and is set up as
1235 * @param host the host name to connect to
1236 * @param port the port to connect to
1237 * @param family the address family to listen on, NULL for all
1238 * @param error return location for error code
1239 * @returns connection file descriptor or -1 on error
1242 _dbus_connect_tcp_socket (const char *host,
1247 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1251 _dbus_connect_tcp_socket_with_nonce (const char *host,
1254 const char *noncefile,
1258 struct addrinfo hints;
1259 struct addrinfo *ai, *tmp;
1261 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1263 _dbus_win_startup_winsock ();
1265 fd = socket (AF_INET, SOCK_STREAM, 0);
1267 if (DBUS_SOCKET_IS_INVALID (fd))
1269 DBUS_SOCKET_SET_ERRNO ();
1270 dbus_set_error (error,
1271 _dbus_error_from_errno (errno),
1272 "Failed to create socket: %s",
1273 _dbus_strerror (errno));
1278 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1283 hints.ai_family = AF_UNSPEC;
1284 else if (!strcmp(family, "ipv4"))
1285 hints.ai_family = AF_INET;
1286 else if (!strcmp(family, "ipv6"))
1287 hints.ai_family = AF_INET6;
1290 dbus_set_error (error,
1291 _dbus_error_from_errno (errno),
1292 "Unknown address family %s", family);
1295 hints.ai_protocol = IPPROTO_TCP;
1296 hints.ai_socktype = SOCK_STREAM;
1297 #ifdef AI_ADDRCONFIG
1298 hints.ai_flags = AI_ADDRCONFIG;
1303 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0)
1305 dbus_set_error (error,
1306 _dbus_error_from_errno (errno),
1307 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1308 host, port, gai_strerror(res), res);
1316 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1319 dbus_set_error (error,
1320 _dbus_error_from_errno (errno),
1321 "Failed to open socket: %s",
1322 _dbus_strerror (errno));
1325 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1327 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) != 0)
1341 dbus_set_error (error,
1342 _dbus_error_from_errno (errno),
1343 "Failed to connect to socket \"%s:%s\" %s",
1344 host, port, _dbus_strerror(errno));
1348 if ( noncefile != NULL )
1350 DBusString noncefileStr;
1352 if (!_dbus_string_init (&noncefileStr) ||
1353 !_dbus_string_append(&noncefileStr, noncefile))
1356 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1360 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1362 _dbus_string_free (&noncefileStr);
1371 if (!_dbus_set_fd_nonblocking (fd, error) )
1381 * Creates a socket and binds it to the given path, then listens on
1382 * the socket. The socket is set to be nonblocking. In case of port=0
1383 * a random free port is used and returned in the port parameter.
1384 * If inaddr_any is specified, the hostname is ignored.
1386 * @param host the host name to listen on
1387 * @param port the port to listen on, if zero a free port will be used
1388 * @param family the address family to listen on, NULL for all
1389 * @param retport string to return the actual port listened on
1390 * @param fds_p location to store returned file descriptors
1391 * @param error return location for errors
1392 * @returns the number of listening file descriptors or -1 on error
1396 _dbus_listen_tcp_socket (const char *host,
1399 DBusString *retport,
1403 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1404 struct addrinfo hints;
1405 struct addrinfo *ai, *tmp;
1407 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1408 //That's required for family == IPv6(which is the default on Vista if family is not given)
1409 //So we use our own union instead of sockaddr_gen:
1412 struct sockaddr Address;
1413 struct sockaddr_in AddressIn;
1414 struct sockaddr_in6 AddressIn6;
1418 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1420 _dbus_win_startup_winsock ();
1425 hints.ai_family = AF_UNSPEC;
1426 else if (!strcmp(family, "ipv4"))
1427 hints.ai_family = AF_INET;
1428 else if (!strcmp(family, "ipv6"))
1429 hints.ai_family = AF_INET6;
1432 dbus_set_error (error,
1433 _dbus_error_from_errno (errno),
1434 "Unknown address family %s", family);
1438 hints.ai_protocol = IPPROTO_TCP;
1439 hints.ai_socktype = SOCK_STREAM;
1440 #ifdef AI_ADDRCONFIG
1441 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1443 hints.ai_flags = AI_PASSIVE;
1446 redo_lookup_with_port:
1447 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1449 dbus_set_error (error,
1450 _dbus_error_from_errno (errno),
1451 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1452 host ? host : "*", port, gai_strerror(res), res);
1459 int fd = -1, *newlisten_fd;
1460 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) < 0)
1462 dbus_set_error (error,
1463 _dbus_error_from_errno (errno),
1464 "Failed to open socket: %s",
1465 _dbus_strerror (errno));
1468 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1470 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1473 dbus_set_error (error, _dbus_error_from_errno (errno),
1474 "Failed to bind socket \"%s:%s\": %s",
1475 host ? host : "*", port, _dbus_strerror (errno));
1479 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1482 dbus_set_error (error, _dbus_error_from_errno (errno),
1483 "Failed to listen on socket \"%s:%s\": %s",
1484 host ? host : "*", port, _dbus_strerror (errno));
1488 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1492 dbus_set_error (error, _dbus_error_from_errno (errno),
1493 "Failed to allocate file handle array: %s",
1494 _dbus_strerror (errno));
1497 listen_fd = newlisten_fd;
1498 listen_fd[nlisten_fd] = fd;
1501 if (!_dbus_string_get_length(retport))
1503 /* If the user didn't specify a port, or used 0, then
1504 the kernel chooses a port. After the first address
1505 is bound to, we need to force all remaining addresses
1506 to use the same port */
1507 if (!port || !strcmp(port, "0"))
1509 mysockaddr_gen addr;
1510 socklen_t addrlen = sizeof(addr);
1513 if ((res = getsockname(fd, &addr.Address, &addrlen)) != 0)
1515 dbus_set_error (error, _dbus_error_from_errno (errno),
1516 "Failed to resolve port \"%s:%s\": %s (%d)",
1517 host ? host : "*", port, gai_strerror(res), res);
1520 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1521 if (!_dbus_string_append(retport, portbuf))
1523 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1527 /* Release current address list & redo lookup */
1528 port = _dbus_string_get_const_data(retport);
1530 goto redo_lookup_with_port;
1534 if (!_dbus_string_append(retport, port))
1536 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1549 errno = WSAEADDRINUSE;
1550 dbus_set_error (error, _dbus_error_from_errno (errno),
1551 "Failed to bind socket \"%s:%s\": %s",
1552 host ? host : "*", port, _dbus_strerror (errno));
1556 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1558 for (i = 0 ; i < nlisten_fd ; i++)
1560 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1573 for (i = 0 ; i < nlisten_fd ; i++)
1574 closesocket (listen_fd[i]);
1575 dbus_free(listen_fd);
1581 * Accepts a connection on a listening socket.
1582 * Handles EINTR for you.
1584 * @param listen_fd the listen file descriptor
1585 * @returns the connection fd of the client, or -1 on error
1588 _dbus_accept (int listen_fd)
1593 client_fd = accept (listen_fd, NULL, NULL);
1595 if (DBUS_SOCKET_IS_INVALID (client_fd))
1597 DBUS_SOCKET_SET_ERRNO ();
1602 _dbus_verbose ("client fd %d accepted\n", client_fd);
1611 _dbus_send_credentials_socket (int handle,
1614 /* FIXME: for the session bus credentials shouldn't matter (?), but
1615 * for the system bus they are presumably essential. A rough outline
1616 * of a way to implement the credential transfer would be this:
1618 * client waits to *read* a byte.
1620 * server creates a named pipe with a random name, sends a byte
1621 * contining its length, and its name.
1623 * client reads the name, connects to it (using Win32 API).
1625 * server waits for connection to the named pipe, then calls
1626 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1627 * calls RevertToSelf(), closes its handles to the named pipe, and
1628 * is done. (Maybe there is some other way to get the SID of a named
1629 * pipe client without having to use impersonation?)
1631 * client closes its handles and is done.
1633 * Ralf: Why not sending credentials over the given this connection ?
1634 * Using named pipes makes it impossible to be connected from a unix client.
1640 _dbus_string_init_const_len (&buf, "\0", 1);
1642 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1644 if (bytes_written < 0 && errno == EINTR)
1647 if (bytes_written < 0)
1649 dbus_set_error (error, _dbus_error_from_errno (errno),
1650 "Failed to write credentials byte: %s",
1651 _dbus_strerror (errno));
1654 else if (bytes_written == 0)
1656 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1657 "wrote zero bytes writing credentials byte");
1662 _dbus_assert (bytes_written == 1);
1663 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1670 * Reads a single byte which must be nul (an error occurs otherwise),
1671 * and reads unix credentials if available. Fills in pid/uid/gid with
1672 * -1 if no credentials are available. Return value indicates whether
1673 * a byte was read, not whether we got valid credentials. On some
1674 * systems, such as Linux, reading/writing the byte isn't actually
1675 * required, but we do it anyway just to avoid multiple codepaths.
1677 * Fails if no byte is available, so you must select() first.
1679 * The point of the byte is that on some systems we have to
1680 * use sendmsg()/recvmsg() to transmit credentials.
1682 * @param client_fd the client file descriptor
1683 * @param credentials struct to fill with credentials of client
1684 * @param error location to store error code
1685 * @returns #TRUE on success
1688 _dbus_read_credentials_socket (int handle,
1689 DBusCredentials *credentials,
1695 // could fail due too OOM
1696 if (_dbus_string_init(&buf))
1698 bytes_read = _dbus_read_socket(handle, &buf, 1 );
1701 _dbus_verbose("got one zero byte from server");
1703 _dbus_string_free(&buf);
1706 _dbus_credentials_add_from_current_process (credentials);
1707 _dbus_verbose("FIXME: get faked credentials from current process");
1713 * Checks to make sure the given directory is
1714 * private to the user
1716 * @param dir the name of the directory
1717 * @param error error return
1718 * @returns #FALSE on failure
1721 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1723 const char *directory;
1726 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1733 * Appends the given filename to the given directory.
1735 * @todo it might be cute to collapse multiple '/' such as "foo//"
1738 * @param dir the directory name
1739 * @param next_component the filename
1740 * @returns #TRUE on success
1743 _dbus_concat_dir_and_file (DBusString *dir,
1744 const DBusString *next_component)
1746 dbus_bool_t dir_ends_in_slash;
1747 dbus_bool_t file_starts_with_slash;
1749 if (_dbus_string_get_length (dir) == 0 ||
1750 _dbus_string_get_length (next_component) == 0)
1754 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1755 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1757 file_starts_with_slash =
1758 ('/' == _dbus_string_get_byte (next_component, 0) ||
1759 '\\' == _dbus_string_get_byte (next_component, 0));
1761 if (dir_ends_in_slash && file_starts_with_slash)
1763 _dbus_string_shorten (dir, 1);
1765 else if (!(dir_ends_in_slash || file_starts_with_slash))
1767 if (!_dbus_string_append_byte (dir, '\\'))
1771 return _dbus_string_copy (next_component, 0, dir,
1772 _dbus_string_get_length (dir));
1775 /*---------------- DBusCredentials ----------------------------------*/
1778 * Adds the credentials corresponding to the given username.
1780 * @param credentials credentials to fill in
1781 * @param username the username
1782 * @returns #TRUE if the username existed and we got some credentials
1785 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1786 const DBusString *username)
1788 return _dbus_credentials_add_windows_sid (credentials,
1789 _dbus_string_get_const_data(username));
1793 * Adds the credentials of the current process to the
1794 * passed-in credentials object.
1796 * @param credentials credentials to add to
1797 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1801 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1803 dbus_bool_t retval = FALSE;
1806 if (!_dbus_getsid(&sid))
1809 if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1812 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1827 * Append to the string the identity we would like to have when we
1828 * authenticate, on UNIX this is the current process UID and on
1829 * Windows something else, probably a Windows SID string. No escaping
1830 * is required, that is done in dbus-auth.c. The username here
1831 * need not be anything human-readable, it can be the machine-readable
1832 * form i.e. a user id.
1834 * @param str the string to append to
1835 * @returns #FALSE on no memory
1836 * @todo to which class belongs this
1839 _dbus_append_user_from_current_process (DBusString *str)
1841 dbus_bool_t retval = FALSE;
1844 if (!_dbus_getsid(&sid))
1847 retval = _dbus_string_append (str,sid);
1854 * Gets our process ID
1855 * @returns process ID
1860 return GetCurrentProcessId ();
1863 /** nanoseconds in a second */
1864 #define NANOSECONDS_PER_SECOND 1000000000
1865 /** microseconds in a second */
1866 #define MICROSECONDS_PER_SECOND 1000000
1867 /** milliseconds in a second */
1868 #define MILLISECONDS_PER_SECOND 1000
1869 /** nanoseconds in a millisecond */
1870 #define NANOSECONDS_PER_MILLISECOND 1000000
1871 /** microseconds in a millisecond */
1872 #define MICROSECONDS_PER_MILLISECOND 1000
1875 * Sleeps the given number of milliseconds.
1876 * @param milliseconds number of milliseconds
1879 _dbus_sleep_milliseconds (int milliseconds)
1881 Sleep (milliseconds);
1886 * Get current time, as in gettimeofday().
1888 * @param tv_sec return location for number of seconds
1889 * @param tv_usec return location for number of microseconds
1892 _dbus_get_current_time (long *tv_sec,
1896 dbus_uint64_t *time64 = (dbus_uint64_t *) &ft;
1898 GetSystemTimeAsFileTime (&ft);
1900 /* Convert from 100s of nanoseconds since 1601-01-01
1901 * to Unix epoch. Yes, this is Y2038 unsafe.
1903 *time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1907 *tv_sec = *time64 / 1000000;
1910 *tv_usec = *time64 % 1000000;
1915 * signal (SIGPIPE, SIG_IGN);
1918 _dbus_disable_sigpipe (void)
1923 /* _dbus_read() is static on Windows, only used below in this file.
1934 _dbus_assert (count >= 0);
1936 start = _dbus_string_get_length (buffer);
1938 if (!_dbus_string_lengthen (buffer, count))
1944 data = _dbus_string_get_data_len (buffer, start, count);
1948 bytes_read = _read (fd, data, count);
1956 /* put length back (note that this doesn't actually realloc anything) */
1957 _dbus_string_set_length (buffer, start);
1963 /* put length back (doesn't actually realloc) */
1964 _dbus_string_set_length (buffer, start + bytes_read);
1968 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
1976 * Appends the contents of the given file to the string,
1977 * returning error code. At the moment, won't open a file
1978 * more than a megabyte in size.
1980 * @param str the string to append to
1981 * @param filename filename to load
1982 * @param error place to set an error
1983 * @returns #FALSE if error was set
1986 _dbus_file_get_contents (DBusString *str,
1987 const DBusString *filename,
1994 const char *filename_c;
1996 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1998 filename_c = _dbus_string_get_const_data (filename);
2000 fd = _open (filename_c, O_RDONLY | O_BINARY);
2003 dbus_set_error (error, _dbus_error_from_errno (errno),
2004 "Failed to open \"%s\": %s",
2010 _dbus_verbose ("file %s fd %d opened\n", filename_c, fd);
2012 if (_fstati64 (fd, &sb) < 0)
2014 dbus_set_error (error, _dbus_error_from_errno (errno),
2015 "Failed to stat \"%s\": %s",
2019 _dbus_verbose ("fstat() failed: %s",
2027 if (sb.st_size > _DBUS_ONE_MEGABYTE)
2029 dbus_set_error (error, DBUS_ERROR_FAILED,
2030 "File size %lu of \"%s\" is too large.",
2031 (unsigned long) sb.st_size, filename_c);
2037 orig_len = _dbus_string_get_length (str);
2038 if (sb.st_size > 0 && S_ISREG (sb.st_mode))
2042 while (total < (int) sb.st_size)
2044 bytes_read = _dbus_read (fd, str, sb.st_size - total);
2045 if (bytes_read <= 0)
2047 dbus_set_error (error, _dbus_error_from_errno (errno),
2048 "Error reading \"%s\": %s",
2052 _dbus_verbose ("read() failed: %s",
2056 _dbus_string_set_length (str, orig_len);
2060 total += bytes_read;
2066 else if (sb.st_size != 0)
2068 _dbus_verbose ("Can only open regular files at the moment.\n");
2069 dbus_set_error (error, DBUS_ERROR_FAILED,
2070 "\"%s\" is not a regular file",
2083 * Writes a string out to a file. If the file exists,
2084 * it will be atomically overwritten by the new data.
2086 * @param str the string to write out
2087 * @param filename the file to save string to
2088 * @param error error to be filled in on failure
2089 * @returns #FALSE on failure
2092 _dbus_string_save_to_file (const DBusString *str,
2093 const DBusString *filename,
2098 const char *filename_c;
2099 DBusString tmp_filename;
2100 const char *tmp_filename_c;
2103 dbus_bool_t need_unlink;
2106 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2110 need_unlink = FALSE;
2112 if (!_dbus_string_init (&tmp_filename))
2114 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2118 if (!_dbus_string_copy (filename, 0, &tmp_filename, 0))
2120 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2121 _dbus_string_free (&tmp_filename);
2125 if (!_dbus_string_append (&tmp_filename, "."))
2127 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2128 _dbus_string_free (&tmp_filename);
2132 #define N_TMP_FILENAME_RANDOM_BYTES 8
2133 if (!_dbus_generate_random_ascii (&tmp_filename, N_TMP_FILENAME_RANDOM_BYTES))
2135 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
2136 _dbus_string_free (&tmp_filename);
2140 filename_c = _dbus_string_get_const_data (filename);
2141 tmp_filename_c = _dbus_string_get_const_data (&tmp_filename);
2143 fd = _open (tmp_filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
2147 dbus_set_error (error, _dbus_error_from_errno (errno),
2148 "Could not create %s: %s", tmp_filename_c,
2153 _dbus_verbose ("tmp file %s fd %d opened\n", tmp_filename_c, fd);
2158 bytes_to_write = _dbus_string_get_length (str);
2159 str_c = _dbus_string_get_const_data (str);
2161 while (total < bytes_to_write)
2165 bytes_written = _write (fd, str_c + total, bytes_to_write - total);
2167 if (bytes_written <= 0)
2169 dbus_set_error (error, _dbus_error_from_errno (errno),
2170 "Could not write to %s: %s", tmp_filename_c,
2175 total += bytes_written;
2178 if (_close (fd) < 0)
2180 dbus_set_error (error, _dbus_error_from_errno (errno),
2181 "Could not close file %s: %s",
2182 tmp_filename_c, strerror (errno));
2189 /* Unlike rename(), MoveFileEx() can replace existing files */
2190 if (MoveFileExA (tmp_filename_c, filename_c, MOVEFILE_REPLACE_EXISTING) < 0)
2192 char *emsg = _dbus_win_error_string (GetLastError ());
2193 dbus_set_error (error, DBUS_ERROR_FAILED,
2194 "Could not rename %s to %s: %s",
2195 tmp_filename_c, filename_c,
2197 _dbus_win_free_error_string (emsg);
2202 need_unlink = FALSE;
2207 /* close first, then unlink */
2212 if (need_unlink && _unlink (tmp_filename_c) < 0)
2213 _dbus_verbose ("failed to unlink temp file %s: %s\n",
2214 tmp_filename_c, strerror (errno));
2216 _dbus_string_free (&tmp_filename);
2219 _DBUS_ASSERT_ERROR_IS_SET (error);
2225 /** Creates the given file, failing if the file already exists.
2227 * @param filename the filename
2228 * @param error error location
2229 * @returns #TRUE if we created the file and it didn't exist
2232 _dbus_create_file_exclusively (const DBusString *filename,
2236 const char *filename_c;
2238 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2240 filename_c = _dbus_string_get_const_data (filename);
2242 fd = _open (filename_c, O_WRONLY | O_BINARY | O_EXCL | O_CREAT,
2246 dbus_set_error (error,
2248 "Could not create file %s: %s\n",
2254 _dbus_verbose ("exclusive file %s fd %d opened\n", filename_c, fd);
2256 if (_close (fd) < 0)
2258 dbus_set_error (error,
2260 "Could not close file %s: %s\n",
2271 * Creates a directory; succeeds if the directory
2272 * is created or already existed.
2274 * @param filename directory filename
2275 * @param error initialized error object
2276 * @returns #TRUE on success
2279 _dbus_create_directory (const DBusString *filename,
2282 const char *filename_c;
2284 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2286 filename_c = _dbus_string_get_const_data (filename);
2288 if (!CreateDirectory (filename_c, NULL))
2290 if (GetLastError () == ERROR_ALREADY_EXISTS)
2293 dbus_set_error (error, DBUS_ERROR_FAILED,
2294 "Failed to create directory %s: %s\n",
2295 filename_c, strerror (errno));
2304 * Generates the given number of random bytes,
2305 * using the best mechanism we can come up with.
2307 * @param str the string
2308 * @param n_bytes the number of random bytes to append to string
2309 * @returns #TRUE on success, #FALSE if no memory
2312 _dbus_generate_random_bytes (DBusString *str,
2319 old_len = _dbus_string_get_length (str);
2321 if (!_dbus_string_lengthen (str, n_bytes))
2324 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2326 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2329 if (!CryptGenRandom (hprov, n_bytes, p))
2331 CryptReleaseContext (hprov, 0);
2335 CryptReleaseContext (hprov, 0);
2341 * Gets the temporary files directory by inspecting the environment variables
2342 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2344 * @returns location of temp directory
2347 _dbus_get_tmpdir(void)
2349 static const char* tmpdir = NULL;
2350 static char buf[1000];
2356 if (!GetTempPath (sizeof (buf), buf))
2358 _dbus_warn ("GetTempPath failed\n");
2362 /* Drop terminating backslash or slash */
2363 last_slash = _mbsrchr (buf, '\\');
2364 if (last_slash > buf && last_slash[1] == '\0')
2365 last_slash[0] = '\0';
2366 last_slash = _mbsrchr (buf, '/');
2367 if (last_slash > buf && last_slash[1] == '\0')
2368 last_slash[0] = '\0';
2373 _dbus_assert(tmpdir != NULL);
2380 * Deletes the given file.
2382 * @param filename the filename
2383 * @param error error location
2385 * @returns #TRUE if unlink() succeeded
2388 _dbus_delete_file (const DBusString *filename,
2391 const char *filename_c;
2393 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2395 filename_c = _dbus_string_get_const_data (filename);
2397 if (_unlink (filename_c) < 0)
2399 dbus_set_error (error, DBUS_ERROR_FAILED,
2400 "Failed to delete file %s: %s\n",
2401 filename_c, strerror (errno));
2408 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_BUILD_TESTS)
2420 * Backtrace Generator
2422 * Copyright 2004 Eric Poech
2423 * Copyright 2004 Robert Shearman
2425 * This library is free software; you can redistribute it and/or
2426 * modify it under the terms of the GNU Lesser General Public
2427 * License as published by the Free Software Foundation; either
2428 * version 2.1 of the License, or (at your option) any later version.
2430 * This library is distributed in the hope that it will be useful,
2431 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2432 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2433 * Lesser General Public License for more details.
2435 * You should have received a copy of the GNU Lesser General Public
2436 * License along with this library; if not, write to the Free Software
2437 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2441 #include <imagehlp.h>
2444 #define DPRINTF _dbus_warn
2452 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2454 //MAKE_FUNCPTR(StackWalk);
2455 //MAKE_FUNCPTR(SymGetModuleBase);
2456 //MAKE_FUNCPTR(SymFunctionTableAccess);
2457 //MAKE_FUNCPTR(SymInitialize);
2458 //MAKE_FUNCPTR(SymGetSymFromAddr);
2459 //MAKE_FUNCPTR(SymGetModuleInfo);
2460 static BOOL (WINAPI *pStackWalk)(
2464 LPSTACKFRAME StackFrame,
2465 PVOID ContextRecord,
2466 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2467 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2468 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2469 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2471 static DWORD (WINAPI *pSymGetModuleBase)(
2475 static PVOID (WINAPI *pSymFunctionTableAccess)(
2479 static BOOL (WINAPI *pSymInitialize)(
2481 PSTR UserSearchPath,
2484 static BOOL (WINAPI *pSymGetSymFromAddr)(
2487 PDWORD Displacement,
2488 PIMAGEHLP_SYMBOL Symbol
2490 static BOOL (WINAPI *pSymGetModuleInfo)(
2493 PIMAGEHLP_MODULE ModuleInfo
2495 static DWORD (WINAPI *pSymSetOptions)(
2500 static BOOL init_backtrace()
2502 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2504 #define GETFUNC(x) \
2505 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2513 // GETFUNC(StackWalk);
2514 // GETFUNC(SymGetModuleBase);
2515 // GETFUNC(SymFunctionTableAccess);
2516 // GETFUNC(SymInitialize);
2517 // GETFUNC(SymGetSymFromAddr);
2518 // GETFUNC(SymGetModuleInfo);
2522 pStackWalk = (BOOL (WINAPI *)(
2526 LPSTACKFRAME StackFrame,
2527 PVOID ContextRecord,
2528 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2529 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2530 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2531 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2532 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2533 pSymGetModuleBase=(DWORD (WINAPI *)(
2536 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2537 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2540 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2541 pSymInitialize = (BOOL (WINAPI *)(
2543 PSTR UserSearchPath,
2545 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2546 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2549 PDWORD Displacement,
2550 PIMAGEHLP_SYMBOL Symbol
2551 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2552 pSymGetModuleInfo = (BOOL (WINAPI *)(
2555 PIMAGEHLP_MODULE ModuleInfo
2556 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2557 pSymSetOptions = (DWORD (WINAPI *)(
2559 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2562 pSymSetOptions(SYMOPT_UNDNAME);
2564 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2569 static void dump_backtrace_for_thread(HANDLE hThread)
2576 if (!init_backtrace())
2579 /* can't use this function for current thread as GetThreadContext
2580 * doesn't support getting context from current thread */
2581 if (hThread == GetCurrentThread())
2584 DPRINTF("Backtrace:\n");
2586 _DBUS_ZERO(context);
2587 context.ContextFlags = CONTEXT_FULL;
2589 SuspendThread(hThread);
2591 if (!GetThreadContext(hThread, &context))
2593 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2594 ResumeThread(hThread);
2601 sf.AddrFrame.Offset = context.Ebp;
2602 sf.AddrFrame.Mode = AddrModeFlat;
2603 sf.AddrPC.Offset = context.Eip;
2604 sf.AddrPC.Mode = AddrModeFlat;
2605 dwImageType = IMAGE_FILE_MACHINE_I386;
2607 # error You need to fill in the STACKFRAME structure for your architecture
2610 while (pStackWalk(dwImageType, GetCurrentProcess(),
2611 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2612 pSymGetModuleBase, NULL))
2615 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2616 DWORD dwDisplacement;
2618 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2619 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2621 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2622 &dwDisplacement, pSymbol))
2624 IMAGEHLP_MODULE ModuleInfo;
2625 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2627 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2629 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2631 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2632 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2634 else if (dwDisplacement)
2635 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2637 DPRINTF("4\t%s\n", pSymbol->Name);
2640 ResumeThread(hThread);
2643 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2645 dump_backtrace_for_thread((HANDLE)lpParameter);
2649 /* cannot get valid context from current thread, so we have to execute
2650 * backtrace from another thread */
2651 static void dump_backtrace()
2653 HANDLE hCurrentThread;
2656 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2657 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2658 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2660 WaitForSingleObject(hThread, INFINITE);
2661 CloseHandle(hThread);
2662 CloseHandle(hCurrentThread);
2665 void _dbus_print_backtrace(void)
2671 void _dbus_print_backtrace(void)
2673 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2677 static dbus_uint32_t fromAscii(char ascii)
2679 if(ascii >= '0' && ascii <= '9')
2681 if(ascii >= 'A' && ascii <= 'F')
2682 return ascii - 'A' + 10;
2683 if(ascii >= 'a' && ascii <= 'f')
2684 return ascii - 'a' + 10;
2688 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2689 dbus_bool_t create_if_not_found,
2696 HW_PROFILE_INFOA info;
2697 char *lpc = &info.szHwProfileGuid[0];
2700 // the hw-profile guid lives long enough
2701 if(!GetCurrentHwProfileA(&info))
2703 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2707 // Form: {12340001-4980-1920-6788-123456789012}
2710 u = ((fromAscii(lpc[0]) << 0) |
2711 (fromAscii(lpc[1]) << 4) |
2712 (fromAscii(lpc[2]) << 8) |
2713 (fromAscii(lpc[3]) << 12) |
2714 (fromAscii(lpc[4]) << 16) |
2715 (fromAscii(lpc[5]) << 20) |
2716 (fromAscii(lpc[6]) << 24) |
2717 (fromAscii(lpc[7]) << 28));
2718 machine_id->as_uint32s[0] = u;
2722 u = ((fromAscii(lpc[0]) << 0) |
2723 (fromAscii(lpc[1]) << 4) |
2724 (fromAscii(lpc[2]) << 8) |
2725 (fromAscii(lpc[3]) << 12) |
2726 (fromAscii(lpc[5]) << 16) |
2727 (fromAscii(lpc[6]) << 20) |
2728 (fromAscii(lpc[7]) << 24) |
2729 (fromAscii(lpc[8]) << 28));
2730 machine_id->as_uint32s[1] = u;
2734 u = ((fromAscii(lpc[0]) << 0) |
2735 (fromAscii(lpc[1]) << 4) |
2736 (fromAscii(lpc[2]) << 8) |
2737 (fromAscii(lpc[3]) << 12) |
2738 (fromAscii(lpc[5]) << 16) |
2739 (fromAscii(lpc[6]) << 20) |
2740 (fromAscii(lpc[7]) << 24) |
2741 (fromAscii(lpc[8]) << 28));
2742 machine_id->as_uint32s[2] = u;
2746 u = ((fromAscii(lpc[0]) << 0) |
2747 (fromAscii(lpc[1]) << 4) |
2748 (fromAscii(lpc[2]) << 8) |
2749 (fromAscii(lpc[3]) << 12) |
2750 (fromAscii(lpc[4]) << 16) |
2751 (fromAscii(lpc[5]) << 20) |
2752 (fromAscii(lpc[6]) << 24) |
2753 (fromAscii(lpc[7]) << 28));
2754 machine_id->as_uint32s[3] = u;
2760 HANDLE _dbus_global_lock (const char *mutexname)
2765 mutex = CreateMutex( NULL, FALSE, mutexname );
2771 gotMutex = WaitForSingleObject( mutex, INFINITE );
2774 case WAIT_ABANDONED:
2775 ReleaseMutex (mutex);
2776 CloseHandle (mutex);
2787 void _dbus_global_unlock (HANDLE mutex)
2789 ReleaseMutex (mutex);
2790 CloseHandle (mutex);
2793 // for proper cleanup in dbus-daemon
2794 static HANDLE hDBusDaemonMutex = NULL;
2795 static HANDLE hDBusSharedMem = NULL;
2796 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2797 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2798 // sync _dbus_get_autolaunch_address
2799 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2800 // mutex to determine if dbus-daemon is already started (per user)
2801 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2802 // named shm for dbus adress info (per user)
2804 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfoDebug";
2806 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2811 _dbus_daemon_publish_session_bus_address (const char* address)
2814 char *shared_addr = NULL;
2817 _dbus_assert (address);
2818 // before _dbus_global_lock to keep correct lock/release order
2819 hDBusDaemonMutex = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2820 ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
2821 if ( ret != WAIT_OBJECT_0 ) {
2822 _dbus_warn("Could not lock mutex %s (return code %d). daemon already running? Bus address not published.\n", cDBusDaemonMutex, ret );
2826 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2827 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2830 hDBusSharedMem = CreateFileMapping( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2831 0, strlen( address ) + 1, cDBusDaemonAddressInfo );
2832 _dbus_assert( hDBusSharedMem );
2834 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2836 _dbus_assert (shared_addr);
2838 strcpy( shared_addr, address);
2841 UnmapViewOfFile( shared_addr );
2843 _dbus_global_unlock( lock );
2847 _dbus_daemon_unpublish_session_bus_address (void)
2851 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2852 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2854 CloseHandle( hDBusSharedMem );
2856 hDBusSharedMem = NULL;
2858 ReleaseMutex( hDBusDaemonMutex );
2860 CloseHandle( hDBusDaemonMutex );
2862 hDBusDaemonMutex = NULL;
2864 _dbus_global_unlock( lock );
2868 _dbus_get_autolaunch_shm (DBusString *address)
2876 // we know that dbus-daemon is available, so we wait until shm is available
2877 sharedMem = OpenFileMapping( FILE_MAP_READ, FALSE, cDBusDaemonAddressInfo );
2878 if( sharedMem == 0 )
2880 if ( sharedMem != 0)
2884 if( sharedMem == 0 )
2887 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2892 _dbus_string_init( address );
2894 _dbus_string_append( address, shared_addr );
2897 UnmapViewOfFile( shared_addr );
2899 CloseHandle( sharedMem );
2905 _dbus_daemon_already_runs (DBusString *address)
2909 dbus_bool_t bRet = TRUE;
2911 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2912 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2915 daemon = CreateMutex( NULL, FALSE, cDBusDaemonMutex );
2916 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2918 ReleaseMutex (daemon);
2919 CloseHandle (daemon);
2921 _dbus_global_unlock( lock );
2926 bRet = _dbus_get_autolaunch_shm( address );
2929 CloseHandle ( daemon );
2931 _dbus_global_unlock( lock );
2937 _dbus_get_autolaunch_address (DBusString *address,
2942 PROCESS_INFORMATION pi;
2943 dbus_bool_t retval = FALSE;
2945 char dbus_exe_path[MAX_PATH];
2946 char dbus_args[MAX_PATH * 2];
2948 const char * daemon_name = "dbus-daemond.exe";
2950 const char * daemon_name = "dbus-daemon.exe";
2953 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2955 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2957 if (_dbus_daemon_already_runs(address))
2959 _dbus_verbose("found already running dbus daemon\n");
2964 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2966 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2967 printf ("or start the daemon manually\n\n");
2973 ZeroMemory( &si, sizeof(si) );
2975 ZeroMemory( &pi, sizeof(pi) );
2977 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2979 // argv[i] = "--config-file=bus\\session.conf";
2980 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2981 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2984 retval = _dbus_get_autolaunch_shm( address );
2987 if (retval == FALSE)
2988 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2992 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2994 _DBUS_ASSERT_ERROR_IS_SET (error);
2996 _dbus_global_unlock (mutex);
3002 /** Makes the file readable by every user in the system.
3004 * @param filename the filename
3005 * @param error error location
3006 * @returns #TRUE if the file's permissions could be changed.
3009 _dbus_make_file_world_readable(const DBusString *filename,
3017 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3018 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3021 * Returns the standard directories for a session bus to look for service
3024 * On Windows this should be data directories:
3026 * %CommonProgramFiles%/dbus
3032 * @param dirs the directory list we are returning
3033 * @returns #FALSE on OOM
3037 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3039 const char *common_progs;
3040 DBusString servicedir_path;
3042 if (!_dbus_string_init (&servicedir_path))
3045 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR _DBUS_PATH_SEPARATOR))
3048 common_progs = _dbus_getenv ("CommonProgramFiles");
3050 if (common_progs != NULL)
3052 if (!_dbus_string_append (&servicedir_path, common_progs))
3055 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3059 if (!_dbus_split_paths_and_append (&servicedir_path,
3060 DBUS_STANDARD_SESSION_SERVICEDIR,
3064 _dbus_string_free (&servicedir_path);
3068 _dbus_string_free (&servicedir_path);
3073 * Returns the standard directories for a system bus to look for service
3076 * On UNIX this should be the standard xdg freedesktop.org data directories:
3078 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3084 * On Windows there is no system bus and this function can return nothing.
3086 * @param dirs the directory list we are returning
3087 * @returns #FALSE on OOM
3091 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3097 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
3100 * Atomically increments an integer
3102 * @param atomic pointer to the integer to increment
3103 * @returns the value before incrementing
3107 _dbus_atomic_inc (DBusAtomic *atomic)
3109 // +/- 1 is needed here!
3110 // no volatile argument with mingw
3111 return InterlockedIncrement (&atomic->value) - 1;
3115 * Atomically decrement an integer
3117 * @param atomic pointer to the integer to decrement
3118 * @returns the value before decrementing
3122 _dbus_atomic_dec (DBusAtomic *atomic)
3124 // +/- 1 is needed here!
3125 // no volatile argument with mingw
3126 return InterlockedDecrement (&atomic->value) + 1;
3129 #endif /* asserts or tests enabled */
3132 * Called when the bus daemon is signaled to reload its configuration; any
3133 * caches should be nuked. Of course any caches that need explicit reload
3134 * are probably broken, but c'est la vie.
3139 _dbus_flush_caches (void)
3144 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3145 * for Winsock so is abstracted)
3147 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3150 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3152 return errno == WSAEWOULDBLOCK;
3156 * return the absolute path of the dbus installation
3158 * @param s buffer for installation path
3159 * @param len length of buffer
3160 * @returns #FALSE on failure
3163 _dbus_get_install_root(char *prefix, int len)
3165 //To find the prefix, we cut the filename and also \bin\ if present
3171 pathLength = GetModuleFileName(_dbus_win_get_dll_hmodule(), prefix, len);
3172 if ( pathLength == 0 || GetLastError() != 0 ) {
3176 lastSlash = _mbsrchr(prefix, '\\');
3177 if (lastSlash == NULL) {
3181 //cut off binary name
3184 //cut possible "\\bin"
3186 //this fails if we are in a double-byte system codepage and the
3187 //folder's name happens to end with the *bytes*
3188 //"\\bin"... (I.e. the second byte of some Han character and then
3189 //the Latin "bin", but that is not likely I think...
3190 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3192 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3194 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3201 find config file either from installation or build root according to
3202 the following path layout
3204 bin/dbus-daemon[d].exe
3205 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3206 (the former above is what dbus4win uses, the latter above is
3207 what a "normal" Unix-style "make install" uses)
3210 bin/dbus-daemon[d].exe
3211 bus/<config-file>.conf
3214 _dbus_get_config_file_name(DBusString *config_file, char *s)
3216 char path[MAX_PATH*2];
3217 int path_size = sizeof(path);
3219 if (!_dbus_get_install_root(path,path_size))
3222 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3224 strcat(path,"etc\\");
3226 if (_dbus_file_exists(path))
3228 // find path from executable
3229 if (!_dbus_string_append (config_file, path))
3234 if (!_dbus_get_install_root(path,path_size))
3236 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3238 strcat(path,"etc\\dbus-1\\");
3241 if (_dbus_file_exists(path))
3243 if (!_dbus_string_append (config_file, path))
3248 if (!_dbus_get_install_root(path,path_size))
3250 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3252 strcat(path,"bus\\");
3255 if (_dbus_file_exists(path))
3257 if (!_dbus_string_append (config_file, path))
3266 * Append the absolute path of the system.conf file
3267 * (there is no system bus on Windows so this can just
3268 * return FALSE and print a warning or something)
3270 * @param str the string to append to
3271 * @returns #FALSE if no memory
3274 _dbus_append_system_config_file (DBusString *str)
3276 return _dbus_get_config_file_name(str, "system.conf");
3280 * Append the absolute path of the session.conf file.
3282 * @param str the string to append to
3283 * @returns #FALSE if no memory
3286 _dbus_append_session_config_file (DBusString *str)
3288 return _dbus_get_config_file_name(str, "session.conf");
3291 /* See comment in dbus-sysdeps-unix.c */
3293 _dbus_lookup_session_address (dbus_bool_t *supported,
3294 DBusString *address,
3297 /* Probably fill this in with something based on COM? */
3303 * Appends the directory in which a keyring for the given credentials
3304 * should be stored. The credentials should have either a Windows or
3305 * UNIX user in them. The directory should be an absolute path.
3307 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3308 * be something else, since the dotfile convention is not normal on Windows.
3310 * @param directory string to append directory to
3311 * @param credentials credentials the directory should be for
3313 * @returns #FALSE on no memory
3316 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3317 DBusCredentials *credentials)
3322 const char *homepath;
3324 _dbus_assert (credentials != NULL);
3325 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3327 if (!_dbus_string_init (&homedir))
3330 homepath = _dbus_getenv("HOMEPATH");
3331 if (homepath != NULL && *homepath != '\0')
3333 _dbus_string_append(&homedir,homepath);
3336 #ifdef DBUS_BUILD_TESTS
3338 const char *override;
3340 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3341 if (override != NULL && *override != '\0')
3343 _dbus_string_set_length (&homedir, 0);
3344 if (!_dbus_string_append (&homedir, override))
3347 _dbus_verbose ("Using fake homedir for testing: %s\n",
3348 _dbus_string_get_const_data (&homedir));
3352 static dbus_bool_t already_warned = FALSE;
3353 if (!already_warned)
3355 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3356 already_warned = TRUE;
3362 _dbus_string_init_const (&dotdir, ".dbus-keyrings");
3363 if (!_dbus_concat_dir_and_file (&homedir,
3367 if (!_dbus_string_copy (&homedir, 0,
3368 directory, _dbus_string_get_length (directory))) {
3372 _dbus_string_free (&homedir);
3376 _dbus_string_free (&homedir);
3380 /** Checks if a file exists
3382 * @param file full path to the file
3383 * @returns #TRUE if file exists
3386 _dbus_file_exists (const char *file)
3388 DWORD attributes = GetFileAttributes (file);
3390 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3397 * A wrapper around strerror() because some platforms
3398 * may be lame and not have strerror().
3400 * @param error_number errno.
3401 * @returns error description.
3404 _dbus_strerror (int error_number)
3412 switch (error_number)
3415 return "Interrupted function call";
3417 return "Permission denied";
3419 return "Bad address";
3421 return "Invalid argument";
3423 return "Too many open files";
3424 case WSAEWOULDBLOCK:
3425 return "Resource temporarily unavailable";
3426 case WSAEINPROGRESS:
3427 return "Operation now in progress";
3429 return "Operation already in progress";
3431 return "Socket operation on nonsocket";
3432 case WSAEDESTADDRREQ:
3433 return "Destination address required";
3435 return "Message too long";
3437 return "Protocol wrong type for socket";
3438 case WSAENOPROTOOPT:
3439 return "Bad protocol option";
3440 case WSAEPROTONOSUPPORT:
3441 return "Protocol not supported";
3442 case WSAESOCKTNOSUPPORT:
3443 return "Socket type not supported";
3445 return "Operation not supported";
3446 case WSAEPFNOSUPPORT:
3447 return "Protocol family not supported";
3448 case WSAEAFNOSUPPORT:
3449 return "Address family not supported by protocol family";
3451 return "Address already in use";
3452 case WSAEADDRNOTAVAIL:
3453 return "Cannot assign requested address";
3455 return "Network is down";
3456 case WSAENETUNREACH:
3457 return "Network is unreachable";
3459 return "Network dropped connection on reset";
3460 case WSAECONNABORTED:
3461 return "Software caused connection abort";
3463 return "Connection reset by peer";
3465 return "No buffer space available";
3467 return "Socket is already connected";
3469 return "Socket is not connected";
3471 return "Cannot send after socket shutdown";
3473 return "Connection timed out";
3474 case WSAECONNREFUSED:
3475 return "Connection refused";
3477 return "Host is down";
3478 case WSAEHOSTUNREACH:
3479 return "No route to host";
3481 return "Too many processes";
3483 return "Graceful shutdown in progress";
3484 case WSATYPE_NOT_FOUND:
3485 return "Class type not found";
3486 case WSAHOST_NOT_FOUND:
3487 return "Host not found";
3489 return "Nonauthoritative host not found";
3490 case WSANO_RECOVERY:
3491 return "This is a nonrecoverable error";
3493 return "Valid name, no data record of requested type";
3494 case WSA_INVALID_HANDLE:
3495 return "Specified event object handle is invalid";
3496 case WSA_INVALID_PARAMETER:
3497 return "One or more parameters are invalid";
3498 case WSA_IO_INCOMPLETE:
3499 return "Overlapped I/O event object not in signaled state";
3500 case WSA_IO_PENDING:
3501 return "Overlapped operations will complete later";
3502 case WSA_NOT_ENOUGH_MEMORY:
3503 return "Insufficient memory available";
3504 case WSA_OPERATION_ABORTED:
3505 return "Overlapped operation aborted";
3506 #ifdef WSAINVALIDPROCTABLE
3508 case WSAINVALIDPROCTABLE:
3509 return "Invalid procedure table from service provider";
3511 #ifdef WSAINVALIDPROVIDER
3513 case WSAINVALIDPROVIDER:
3514 return "Invalid service provider version number";
3516 #ifdef WSAPROVIDERFAILEDINIT
3518 case WSAPROVIDERFAILEDINIT:
3519 return "Unable to initialize a service provider";
3522 case WSASYSCALLFAILURE:
3523 return "System call failure";
3525 msg = strerror (error_number);
3534 * Assigns an error name and message corresponding to a Win32 error
3535 * code to a DBusError. Does nothing if error is #NULL.
3537 * @param error the error.
3538 * @param code the Win32 error code
3541 _dbus_win_set_error_from_win_error (DBusError *error,
3546 /* As we want the English message, use the A API */
3547 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3548 FORMAT_MESSAGE_IGNORE_INSERTS |
3549 FORMAT_MESSAGE_FROM_SYSTEM,
3550 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3551 (LPTSTR) &msg, 0, NULL);
3556 msg_copy = dbus_malloc (strlen (msg));
3557 strcpy (msg_copy, msg);
3560 dbus_set_error (error, "win32.error", "%s", msg_copy);
3563 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3567 _dbus_win_warn_win_error (const char *message,
3572 dbus_error_init (&error);
3573 _dbus_win_set_error_from_win_error (&error, code);
3574 _dbus_warn ("%s: %s\n", message, error.message);
3575 dbus_error_free (&error);
3579 * Removes a directory; Directory must be empty
3581 * @param filename directory filename
3582 * @param error initialized error object
3583 * @returns #TRUE on success
3586 _dbus_delete_directory (const DBusString *filename,
3589 const char *filename_c;
3591 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3593 filename_c = _dbus_string_get_const_data (filename);
3595 if (_rmdir (filename_c) != 0)
3597 dbus_set_error (error, DBUS_ERROR_FAILED,
3598 "Failed to remove directory %s: %s\n",
3599 filename_c, strerror (errno));
3606 /** @} end of sysdeps-win */
3607 /* tests in dbus-sysdeps-util.c */