1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation)
4 * Copyright (C) 2002, 2003 Red Hat, Inc.
5 * Copyright (C) 2003 CodeFactory AB
6 * Copyright (C) 2005 Novell, Inc.
7 * Copyright (C) 2006 Peter Kümmel <syntheticpp@gmx.net>
8 * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
9 * Copyright (C) 2006-2013 Ralf Habacker <ralf.habacker@freenet.de>
11 * Licensed under the Academic Free License version 2.1
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
31 #define STRSAFE_NO_DEPRECATE
35 #define _WIN32_WINNT 0x0501
39 #include "dbus-internals.h"
41 #include "dbus-sysdeps.h"
42 #include "dbus-threads.h"
43 #include "dbus-protocol.h"
44 #include "dbus-string.h"
45 #include "dbus-sysdeps.h"
46 #include "dbus-sysdeps-win.h"
47 #include "dbus-protocol.h"
48 #include "dbus-hash.h"
49 #include "dbus-sockets-win.h"
50 #include "dbus-list.h"
51 #include "dbus-nonce.h"
52 #include "dbus-credentials.h"
59 /* Declarations missing in mingw's and windows sdk 7.0 headers */
60 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
61 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
72 #include <sys/types.h>
75 #ifdef HAVE_WS2TCPIP_H
76 /* getaddrinfo for Windows CE (and Windows). */
81 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
88 #endif // HAVE_WSPIAPI_H
94 typedef int socklen_t;
98 _dbus_win_set_errno (int err)
108 * @brief return peer process id from tcp handle for localhost connections
109 * @param handle tcp socket descriptor
110 * @return process id or 0 in case the process id could not be fetched
113 _dbus_get_peer_pid_from_tcp_handle (int handle)
115 struct sockaddr_storage addr;
116 socklen_t len = sizeof (addr);
121 MIB_TCPTABLE_OWNER_PID *tcp_table;
123 dbus_bool_t is_localhost = FALSE;
125 getpeername (handle, (struct sockaddr *) &addr, &len);
127 if (addr.ss_family == AF_INET)
129 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
130 peer_port = ntohs (s->sin_port);
131 is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
133 else if (addr.ss_family == AF_INET6)
135 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
138 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
139 peer_port = ntohs (s->sin6_port);
140 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
141 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
146 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
152 _dbus_verbose ("could not fetch process id from remote process\n");
159 ("Error not been able to fetch tcp peer port from connection\n");
164 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
166 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
167 if (tcp_table == NULL)
169 _dbus_verbose ("Error allocating memory\n");
174 if ((result = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
176 _dbus_verbose ("Error fetching tcp table %d\n", result);
177 dbus_free (tcp_table);
182 for (i = 0; i < tcp_table->dwNumEntries; i++)
184 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
185 int local_port = ntohs (p->dwLocalPort);
186 if (p->dwState == MIB_TCP_STATE_ESTAB && local_port == peer_port)
187 result = p->dwOwningPid;
190 _dbus_verbose ("got pid %d\n", result);
191 dbus_free (tcp_table);
195 /* Convert GetLastError() to a dbus error. */
197 _dbus_win_error_from_last_error (void)
199 switch (GetLastError())
202 return DBUS_ERROR_FAILED;
204 case ERROR_NO_MORE_FILES:
205 case ERROR_TOO_MANY_OPEN_FILES:
206 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
208 case ERROR_ACCESS_DENIED:
209 case ERROR_CANNOT_MAKE:
210 return DBUS_ERROR_ACCESS_DENIED;
212 case ERROR_NOT_ENOUGH_MEMORY:
213 return DBUS_ERROR_NO_MEMORY;
215 case ERROR_FILE_EXISTS:
216 return DBUS_ERROR_FILE_EXISTS;
218 case ERROR_FILE_NOT_FOUND:
219 case ERROR_PATH_NOT_FOUND:
220 return DBUS_ERROR_FILE_NOT_FOUND;
223 return DBUS_ERROR_FAILED;
228 _dbus_win_error_string (int error_number)
232 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
233 FORMAT_MESSAGE_IGNORE_INSERTS |
234 FORMAT_MESSAGE_FROM_SYSTEM,
235 NULL, error_number, 0,
236 (LPSTR) &msg, 0, NULL);
238 if (msg[strlen (msg) - 1] == '\n')
239 msg[strlen (msg) - 1] = '\0';
240 if (msg[strlen (msg) - 1] == '\r')
241 msg[strlen (msg) - 1] = '\0';
247 _dbus_win_free_error_string (char *string)
258 * Thin wrapper around the read() system call that appends
259 * the data it reads to the DBusString buffer. It appends
260 * up to the given count, and returns the same value
261 * and same errno as read(). The only exception is that
262 * _dbus_read_socket() handles EINTR for you.
263 * _dbus_read_socket() can return ENOMEM, even though
264 * regular UNIX read doesn't.
266 * @param fd the file descriptor to read from
267 * @param buffer the buffer to append data to
268 * @param count the amount of data to read
269 * @returns the number of bytes read or -1
273 _dbus_read_socket (int fd,
281 _dbus_assert (count >= 0);
283 start = _dbus_string_get_length (buffer);
285 if (!_dbus_string_lengthen (buffer, count))
287 _dbus_win_set_errno (ENOMEM);
291 data = _dbus_string_get_data_len (buffer, start, count);
295 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
296 bytes_read = recv (fd, data, count, 0);
298 if (bytes_read == SOCKET_ERROR)
300 DBUS_SOCKET_SET_ERRNO();
301 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
305 _dbus_verbose ("recv: = %d\n", bytes_read);
313 /* put length back (note that this doesn't actually realloc anything) */
314 _dbus_string_set_length (buffer, start);
320 /* put length back (doesn't actually realloc) */
321 _dbus_string_set_length (buffer, start + bytes_read);
325 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
333 * Thin wrapper around the write() system call that writes a part of a
334 * DBusString and handles EINTR for you.
336 * @param fd the file descriptor to write
337 * @param buffer the buffer to write data from
338 * @param start the first byte in the buffer to write
339 * @param len the number of bytes to try to write
340 * @returns the number of bytes written or -1 on error
343 _dbus_write_socket (int fd,
344 const DBusString *buffer,
351 data = _dbus_string_get_const_data_len (buffer, start, len);
355 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
356 bytes_written = send (fd, data, len, 0);
358 if (bytes_written == SOCKET_ERROR)
360 DBUS_SOCKET_SET_ERRNO();
361 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
365 _dbus_verbose ("send: = %d\n", bytes_written);
367 if (bytes_written < 0 && errno == EINTR)
371 if (bytes_written > 0)
372 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
375 return bytes_written;
380 * Closes a file descriptor.
382 * @param fd the file descriptor
383 * @param error error object
384 * @returns #FALSE if error set
387 _dbus_close_socket (int fd,
390 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
393 if (closesocket (fd) == SOCKET_ERROR)
395 DBUS_SOCKET_SET_ERRNO ();
400 dbus_set_error (error, _dbus_error_from_errno (errno),
401 "Could not close socket: socket=%d, , %s",
402 fd, _dbus_strerror_from_errno ());
405 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
411 * Sets the file descriptor to be close
412 * on exec. Should be called for all file
413 * descriptors in D-Bus code.
415 * @param fd the file descriptor
418 _dbus_fd_set_close_on_exec (intptr_t handle)
420 if ( !SetHandleInformation( (HANDLE) handle,
421 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
422 0 /*disable both flags*/ ) )
424 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
429 * Sets a file descriptor to be nonblocking.
431 * @param fd the file descriptor.
432 * @param error address of error location.
433 * @returns #TRUE on success.
436 _dbus_set_fd_nonblocking (int handle,
441 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
443 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
445 DBUS_SOCKET_SET_ERRNO ();
446 dbus_set_error (error, _dbus_error_from_errno (errno),
447 "Failed to set socket %d:%d to nonblocking: %s", handle,
448 _dbus_strerror_from_errno ());
457 * Like _dbus_write() but will use writev() if possible
458 * to write both buffers in sequence. The return value
459 * is the number of bytes written in the first buffer,
460 * plus the number written in the second. If the first
461 * buffer is written successfully and an error occurs
462 * writing the second, the number of bytes in the first
463 * is returned (i.e. the error is ignored), on systems that
464 * don't have writev. Handles EINTR for you.
465 * The second buffer may be #NULL.
467 * @param fd the file descriptor
468 * @param buffer1 first buffer
469 * @param start1 first byte to write in first buffer
470 * @param len1 number of bytes to write from first buffer
471 * @param buffer2 second buffer, or #NULL
472 * @param start2 first byte to write in second buffer
473 * @param len2 number of bytes to write in second buffer
474 * @returns total bytes written from both buffers, or -1 on error
477 _dbus_write_socket_two (int fd,
478 const DBusString *buffer1,
481 const DBusString *buffer2,
491 _dbus_assert (buffer1 != NULL);
492 _dbus_assert (start1 >= 0);
493 _dbus_assert (start2 >= 0);
494 _dbus_assert (len1 >= 0);
495 _dbus_assert (len2 >= 0);
498 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
501 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
509 vectors[0].buf = (char*) data1;
510 vectors[0].len = len1;
511 vectors[1].buf = (char*) data2;
512 vectors[1].len = len2;
516 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
525 if (rc == SOCKET_ERROR)
527 DBUS_SOCKET_SET_ERRNO ();
528 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
532 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
534 if (bytes_written < 0 && errno == EINTR)
537 return bytes_written;
541 _dbus_socket_is_invalid (int fd)
543 return fd == INVALID_SOCKET ? TRUE : FALSE;
549 * Opens the client side of a Windows named pipe. The connection D-BUS
550 * file descriptor index is returned. It is set up as nonblocking.
552 * @param path the path to named pipe socket
553 * @param error return location for error code
554 * @returns connection D-BUS file descriptor or -1 on error
557 _dbus_connect_named_pipe (const char *path,
560 _dbus_assert_not_reached ("not implemented");
568 _dbus_win_startup_winsock (void)
570 /* Straight from MSDN, deuglified */
572 static dbus_bool_t beenhere = FALSE;
574 WORD wVersionRequested;
581 wVersionRequested = MAKEWORD (2, 0);
583 err = WSAStartup (wVersionRequested, &wsaData);
586 _dbus_assert_not_reached ("Could not initialize WinSock");
590 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
591 * supports versions greater than 2.0 in addition to 2.0, it will
592 * still return 2.0 in wVersion since that is the version we
595 if (LOBYTE (wsaData.wVersion) != 2 ||
596 HIBYTE (wsaData.wVersion) != 0)
598 _dbus_assert_not_reached ("No usable WinSock found");
613 /************************************************************************
617 ************************************************************************/
620 * Measure the message length without terminating nul
622 int _dbus_printf_string_upper_bound (const char *format,
625 /* MSVCRT's vsnprintf semantics are a bit different */
630 bufsize = sizeof (buf);
631 len = _vsnprintf (buf, bufsize - 1, format, args);
633 while (len == -1) /* try again */
639 p = malloc (bufsize);
644 len = _vsnprintf (p, bufsize - 1, format, args);
653 * Returns the UTF-16 form of a UTF-8 string. The result should be
654 * freed with dbus_free() when no longer needed.
656 * @param str the UTF-8 string
657 * @param error return location for error code
660 _dbus_win_utf8_to_utf16 (const char *str,
667 _dbus_string_init_const (&s, str);
669 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
671 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
675 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
679 _dbus_win_set_error_from_win_error (error, GetLastError ());
683 retval = dbus_new (wchar_t, n);
687 _DBUS_SET_OOM (error);
691 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
694 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
702 * Returns the UTF-8 form of a UTF-16 string. The result should be
703 * freed with dbus_free() when no longer needed.
705 * @param str the UTF-16 string
706 * @param error return location for error code
709 _dbus_win_utf16_to_utf8 (const wchar_t *str,
715 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
719 _dbus_win_set_error_from_win_error (error, GetLastError ());
723 retval = dbus_malloc (n);
727 _DBUS_SET_OOM (error);
731 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
734 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
746 /************************************************************************
749 ************************************************************************/
752 _dbus_win_account_to_sid (const wchar_t *waccount,
756 dbus_bool_t retval = FALSE;
757 DWORD sid_length, wdomain_length;
765 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
766 NULL, &wdomain_length, &use) &&
767 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
769 _dbus_win_set_error_from_win_error (error, GetLastError ());
773 *ppsid = dbus_malloc (sid_length);
776 _DBUS_SET_OOM (error);
780 wdomain = dbus_new (wchar_t, wdomain_length);
783 _DBUS_SET_OOM (error);
787 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
788 wdomain, &wdomain_length, &use))
790 _dbus_win_set_error_from_win_error (error, GetLastError ());
794 if (!IsValidSid ((PSID) *ppsid))
796 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
814 /** @} end of sysdeps-win */
818 * The only reason this is separate from _dbus_getpid() is to allow it
819 * on Windows for logging but not for other purposes.
821 * @returns process ID to put in log messages
824 _dbus_pid_for_log (void)
826 return _dbus_getpid ();
831 * @param sid points to sid buffer, need to be freed with LocalFree()
832 * @param process_id the process id for which the sid should be returned
833 * @returns process sid
836 _dbus_getsid(char **sid, dbus_pid_t process_id)
838 HANDLE process_token = INVALID_HANDLE_VALUE;
839 TOKEN_USER *token_user = NULL;
843 HANDLE process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
845 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
847 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
850 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
851 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
852 || (token_user = alloca (n)) == NULL
853 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
855 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
858 psid = token_user->User.Sid;
859 if (!IsValidSid (psid))
861 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
864 if (!ConvertSidToStringSidA (psid, sid))
866 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
873 CloseHandle (process_handle);
874 if (process_token != INVALID_HANDLE_VALUE)
875 CloseHandle (process_token);
877 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
882 /************************************************************************
886 ************************************************************************/
889 * Creates a full-duplex pipe (as in socketpair()).
890 * Sets both ends of the pipe nonblocking.
892 * @param fd1 return location for one end
893 * @param fd2 return location for the other end
894 * @param blocking #TRUE if pipe should be blocking
895 * @param error error return
896 * @returns #FALSE on failure (if error is set)
899 _dbus_full_duplex_pipe (int *fd1,
901 dbus_bool_t blocking,
904 SOCKET temp, socket1 = -1, socket2 = -1;
905 struct sockaddr_in saddr;
909 _dbus_win_startup_winsock ();
911 temp = socket (AF_INET, SOCK_STREAM, 0);
912 if (temp == INVALID_SOCKET)
914 DBUS_SOCKET_SET_ERRNO ();
919 saddr.sin_family = AF_INET;
921 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
923 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
925 DBUS_SOCKET_SET_ERRNO ();
929 if (listen (temp, 1) == SOCKET_ERROR)
931 DBUS_SOCKET_SET_ERRNO ();
935 len = sizeof (saddr);
936 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
938 DBUS_SOCKET_SET_ERRNO ();
942 socket1 = socket (AF_INET, SOCK_STREAM, 0);
943 if (socket1 == INVALID_SOCKET)
945 DBUS_SOCKET_SET_ERRNO ();
949 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
951 DBUS_SOCKET_SET_ERRNO ();
955 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
956 if (socket2 == INVALID_SOCKET)
958 DBUS_SOCKET_SET_ERRNO ();
965 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
967 DBUS_SOCKET_SET_ERRNO ();
972 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
974 DBUS_SOCKET_SET_ERRNO ();
982 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
983 *fd1, socket1, *fd2, socket2);
990 closesocket (socket2);
992 closesocket (socket1);
996 dbus_set_error (error, _dbus_error_from_errno (errno),
997 "Could not setup socket pair: %s",
998 _dbus_strerror_from_errno ());
1004 * Wrapper for poll().
1006 * @param fds the file descriptors to poll
1007 * @param n_fds number of descriptors in the array
1008 * @param timeout_milliseconds timeout or -1 for infinite
1009 * @returns numbers of fds with revents, or <0 on error
1012 _dbus_poll (DBusPollFD *fds,
1014 int timeout_milliseconds)
1016 #define USE_CHRIS_IMPL 0
1020 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1021 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1029 #define DBUS_STACK_WSAEVENTS 256
1030 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1031 WSAEVENT *pEvents = NULL;
1032 if (n_fds > DBUS_STACK_WSAEVENTS)
1033 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1035 pEvents = eventsOnStack;
1038 #ifdef DBUS_ENABLE_VERBOSE_MODE
1040 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1041 for (i = 0; i < n_fds; i++)
1043 DBusPollFD *fdp = &fds[i];
1046 if (fdp->events & _DBUS_POLLIN)
1047 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1049 if (fdp->events & _DBUS_POLLOUT)
1050 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1052 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1054 // FIXME: more robust code for long msg
1055 // create on heap when msg[] becomes too small
1056 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1058 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1062 msgp += sprintf (msgp, "\n");
1063 _dbus_verbose ("%s",msg);
1065 for (i = 0; i < n_fds; i++)
1067 DBusPollFD *fdp = &fds[i];
1069 long lNetworkEvents = FD_OOB;
1071 ev = WSACreateEvent();
1073 if (fdp->events & _DBUS_POLLIN)
1074 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1076 if (fdp->events & _DBUS_POLLOUT)
1077 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1079 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1085 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1087 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1089 DBUS_SOCKET_SET_ERRNO ();
1090 if (errno != WSAEWOULDBLOCK)
1091 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1094 else if (ready == WSA_WAIT_TIMEOUT)
1096 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1099 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1102 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1104 for (i = 0; i < n_fds; i++)
1106 DBusPollFD *fdp = &fds[i];
1107 WSANETWORKEVENTS ne;
1111 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1113 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1114 fdp->revents |= _DBUS_POLLIN;
1116 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1117 fdp->revents |= _DBUS_POLLOUT;
1119 if (ne.lNetworkEvents & (FD_OOB))
1120 fdp->revents |= _DBUS_POLLERR;
1122 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1123 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1125 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1126 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1128 if (ne.lNetworkEvents & (FD_OOB))
1129 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1131 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1133 if(ne.lNetworkEvents)
1136 WSAEventSelect(fdp->fd, pEvents[i], 0);
1139 msgp += sprintf (msgp, "\n");
1140 _dbus_verbose ("%s",msg);
1144 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1148 for(i = 0; i < n_fds; i++)
1150 WSACloseEvent(pEvents[i]);
1153 if (n_fds > DBUS_STACK_WSAEVENTS)
1158 #else /* USE_CHRIS_IMPL */
1160 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1161 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1164 fd_set read_set, write_set, err_set;
1170 FD_ZERO (&read_set);
1171 FD_ZERO (&write_set);
1175 #ifdef DBUS_ENABLE_VERBOSE_MODE
1177 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1178 for (i = 0; i < n_fds; i++)
1180 DBusPollFD *fdp = &fds[i];
1183 if (fdp->events & _DBUS_POLLIN)
1184 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1186 if (fdp->events & _DBUS_POLLOUT)
1187 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1189 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1191 // FIXME: more robust code for long msg
1192 // create on heap when msg[] becomes too small
1193 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1195 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1199 msgp += sprintf (msgp, "\n");
1200 _dbus_verbose ("%s",msg);
1202 for (i = 0; i < n_fds; i++)
1204 DBusPollFD *fdp = &fds[i];
1206 if (fdp->events & _DBUS_POLLIN)
1207 FD_SET (fdp->fd, &read_set);
1209 if (fdp->events & _DBUS_POLLOUT)
1210 FD_SET (fdp->fd, &write_set);
1212 FD_SET (fdp->fd, &err_set);
1214 max_fd = MAX (max_fd, fdp->fd);
1217 // Avoid random lockups with send(), for lack of a better solution so far
1218 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1219 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1221 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1223 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1225 DBUS_SOCKET_SET_ERRNO ();
1226 if (errno != WSAEWOULDBLOCK)
1227 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1229 else if (ready == 0)
1230 _dbus_verbose ("select: = 0\n");
1234 #ifdef DBUS_ENABLE_VERBOSE_MODE
1236 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1238 for (i = 0; i < n_fds; i++)
1240 DBusPollFD *fdp = &fds[i];
1242 if (FD_ISSET (fdp->fd, &read_set))
1243 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1245 if (FD_ISSET (fdp->fd, &write_set))
1246 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1248 if (FD_ISSET (fdp->fd, &err_set))
1249 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1251 msgp += sprintf (msgp, "\n");
1252 _dbus_verbose ("%s",msg);
1255 for (i = 0; i < n_fds; i++)
1257 DBusPollFD *fdp = &fds[i];
1261 if (FD_ISSET (fdp->fd, &read_set))
1262 fdp->revents |= _DBUS_POLLIN;
1264 if (FD_ISSET (fdp->fd, &write_set))
1265 fdp->revents |= _DBUS_POLLOUT;
1267 if (FD_ISSET (fdp->fd, &err_set))
1268 fdp->revents |= _DBUS_POLLERR;
1272 #endif /* USE_CHRIS_IMPL */
1278 /******************************************************************************
1280 Original CVS version of dbus-sysdeps.c
1282 ******************************************************************************/
1283 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1284 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1286 * Copyright (C) 2002, 2003 Red Hat, Inc.
1287 * Copyright (C) 2003 CodeFactory AB
1288 * Copyright (C) 2005 Novell, Inc.
1290 * Licensed under the Academic Free License version 2.1
1292 * This program is free software; you can redistribute it and/or modify
1293 * it under the terms of the GNU General Public License as published by
1294 * the Free Software Foundation; either version 2 of the License, or
1295 * (at your option) any later version.
1297 * This program is distributed in the hope that it will be useful,
1298 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1299 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1300 * GNU General Public License for more details.
1302 * You should have received a copy of the GNU General Public License
1303 * along with this program; if not, write to the Free Software
1304 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1310 * Exit the process, returning the given value.
1312 * @param code the exit code
1315 _dbus_exit (int code)
1321 * Creates a socket and connects to a socket at the given host
1322 * and port. The connection fd is returned, and is set up as
1325 * @param host the host name to connect to
1326 * @param port the port to connect to
1327 * @param family the address family to listen on, NULL for all
1328 * @param error return location for error code
1329 * @returns connection file descriptor or -1 on error
1332 _dbus_connect_tcp_socket (const char *host,
1337 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1341 _dbus_connect_tcp_socket_with_nonce (const char *host,
1344 const char *noncefile,
1348 struct addrinfo hints;
1349 struct addrinfo *ai, *tmp;
1351 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1353 _dbus_win_startup_winsock ();
1358 hints.ai_family = AF_UNSPEC;
1359 else if (!strcmp(family, "ipv4"))
1360 hints.ai_family = AF_INET;
1361 else if (!strcmp(family, "ipv6"))
1362 hints.ai_family = AF_INET6;
1365 dbus_set_error (error,
1366 DBUS_ERROR_INVALID_ARGS,
1367 "Unknown address family %s", family);
1370 hints.ai_protocol = IPPROTO_TCP;
1371 hints.ai_socktype = SOCK_STREAM;
1372 #ifdef AI_ADDRCONFIG
1373 hints.ai_flags = AI_ADDRCONFIG;
1378 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1380 dbus_set_error (error,
1381 _dbus_error_from_errno (res),
1382 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1383 host, port, _dbus_strerror(res), res);
1390 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1392 DBUS_SOCKET_SET_ERRNO ();
1393 dbus_set_error (error,
1394 _dbus_error_from_errno (errno),
1395 "Failed to open socket: %s",
1396 _dbus_strerror_from_errno ());
1400 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1402 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1404 DBUS_SOCKET_SET_ERRNO ();
1417 dbus_set_error (error,
1418 _dbus_error_from_errno (errno),
1419 "Failed to connect to socket \"%s:%s\" %s",
1420 host, port, _dbus_strerror_from_errno ());
1424 if (noncefile != NULL)
1426 DBusString noncefileStr;
1428 if (!_dbus_string_init (&noncefileStr) ||
1429 !_dbus_string_append(&noncefileStr, noncefile))
1432 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1436 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1438 _dbus_string_free (&noncefileStr);
1447 _dbus_fd_set_close_on_exec (fd);
1449 if (!_dbus_set_fd_nonblocking (fd, error))
1459 * Creates a socket and binds it to the given path, then listens on
1460 * the socket. The socket is set to be nonblocking. In case of port=0
1461 * a random free port is used and returned in the port parameter.
1462 * If inaddr_any is specified, the hostname is ignored.
1464 * @param host the host name to listen on
1465 * @param port the port to listen on, if zero a free port will be used
1466 * @param family the address family to listen on, NULL for all
1467 * @param retport string to return the actual port listened on
1468 * @param fds_p location to store returned file descriptors
1469 * @param error return location for errors
1470 * @returns the number of listening file descriptors or -1 on error
1474 _dbus_listen_tcp_socket (const char *host,
1477 DBusString *retport,
1481 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1482 struct addrinfo hints;
1483 struct addrinfo *ai, *tmp;
1485 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1486 //That's required for family == IPv6(which is the default on Vista if family is not given)
1487 //So we use our own union instead of sockaddr_gen:
1490 struct sockaddr Address;
1491 struct sockaddr_in AddressIn;
1492 struct sockaddr_in6 AddressIn6;
1496 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1498 _dbus_win_startup_winsock ();
1503 hints.ai_family = AF_UNSPEC;
1504 else if (!strcmp(family, "ipv4"))
1505 hints.ai_family = AF_INET;
1506 else if (!strcmp(family, "ipv6"))
1507 hints.ai_family = AF_INET6;
1510 dbus_set_error (error,
1511 DBUS_ERROR_INVALID_ARGS,
1512 "Unknown address family %s", family);
1516 hints.ai_protocol = IPPROTO_TCP;
1517 hints.ai_socktype = SOCK_STREAM;
1518 #ifdef AI_ADDRCONFIG
1519 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1521 hints.ai_flags = AI_PASSIVE;
1524 redo_lookup_with_port:
1525 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1527 dbus_set_error (error,
1528 _dbus_error_from_errno (res),
1529 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1530 host ? host : "*", port, _dbus_strerror(res), res);
1537 int fd = -1, *newlisten_fd;
1538 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1540 DBUS_SOCKET_SET_ERRNO ();
1541 dbus_set_error (error,
1542 _dbus_error_from_errno (errno),
1543 "Failed to open socket: %s",
1544 _dbus_strerror_from_errno ());
1547 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1549 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1551 DBUS_SOCKET_SET_ERRNO ();
1552 dbus_set_error (error, _dbus_error_from_errno (errno),
1553 "Failed to bind socket \"%s:%s\": %s",
1554 host ? host : "*", port, _dbus_strerror_from_errno ());
1559 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1561 DBUS_SOCKET_SET_ERRNO ();
1562 dbus_set_error (error, _dbus_error_from_errno (errno),
1563 "Failed to listen on socket \"%s:%s\": %s",
1564 host ? host : "*", port, _dbus_strerror_from_errno ());
1569 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1573 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1574 "Failed to allocate file handle array");
1577 listen_fd = newlisten_fd;
1578 listen_fd[nlisten_fd] = fd;
1581 if (!_dbus_string_get_length(retport))
1583 /* If the user didn't specify a port, or used 0, then
1584 the kernel chooses a port. After the first address
1585 is bound to, we need to force all remaining addresses
1586 to use the same port */
1587 if (!port || !strcmp(port, "0"))
1589 mysockaddr_gen addr;
1590 socklen_t addrlen = sizeof(addr);
1593 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1595 DBUS_SOCKET_SET_ERRNO ();
1596 dbus_set_error (error, _dbus_error_from_errno (errno),
1597 "Failed to resolve port \"%s:%s\": %s",
1598 host ? host : "*", port, _dbus_strerror_from_errno());
1601 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1602 if (!_dbus_string_append(retport, portbuf))
1604 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1608 /* Release current address list & redo lookup */
1609 port = _dbus_string_get_const_data(retport);
1611 goto redo_lookup_with_port;
1615 if (!_dbus_string_append(retport, port))
1617 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1630 _dbus_win_set_errno (WSAEADDRINUSE);
1631 dbus_set_error (error, _dbus_error_from_errno (errno),
1632 "Failed to bind socket \"%s:%s\": %s",
1633 host ? host : "*", port, _dbus_strerror_from_errno ());
1637 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1639 for (i = 0 ; i < nlisten_fd ; i++)
1641 _dbus_fd_set_close_on_exec (listen_fd[i]);
1642 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1655 for (i = 0 ; i < nlisten_fd ; i++)
1656 closesocket (listen_fd[i]);
1657 dbus_free(listen_fd);
1663 * Accepts a connection on a listening socket.
1664 * Handles EINTR for you.
1666 * @param listen_fd the listen file descriptor
1667 * @returns the connection fd of the client, or -1 on error
1670 _dbus_accept (int listen_fd)
1675 client_fd = accept (listen_fd, NULL, NULL);
1677 if (DBUS_SOCKET_IS_INVALID (client_fd))
1679 DBUS_SOCKET_SET_ERRNO ();
1684 _dbus_verbose ("client fd %d accepted\n", client_fd);
1693 _dbus_send_credentials_socket (int handle,
1696 /* FIXME: for the session bus credentials shouldn't matter (?), but
1697 * for the system bus they are presumably essential. A rough outline
1698 * of a way to implement the credential transfer would be this:
1700 * client waits to *read* a byte.
1702 * server creates a named pipe with a random name, sends a byte
1703 * contining its length, and its name.
1705 * client reads the name, connects to it (using Win32 API).
1707 * server waits for connection to the named pipe, then calls
1708 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1709 * calls RevertToSelf(), closes its handles to the named pipe, and
1710 * is done. (Maybe there is some other way to get the SID of a named
1711 * pipe client without having to use impersonation?)
1713 * client closes its handles and is done.
1715 * Ralf: Why not sending credentials over the given this connection ?
1716 * Using named pipes makes it impossible to be connected from a unix client.
1722 _dbus_string_init_const_len (&buf, "\0", 1);
1724 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1726 if (bytes_written < 0 && errno == EINTR)
1729 if (bytes_written < 0)
1731 dbus_set_error (error, _dbus_error_from_errno (errno),
1732 "Failed to write credentials byte: %s",
1733 _dbus_strerror_from_errno ());
1736 else if (bytes_written == 0)
1738 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1739 "wrote zero bytes writing credentials byte");
1744 _dbus_assert (bytes_written == 1);
1745 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1752 * Reads a single byte which must be nul (an error occurs otherwise),
1753 * and reads unix credentials if available. Fills in pid/uid/gid with
1754 * -1 if no credentials are available. Return value indicates whether
1755 * a byte was read, not whether we got valid credentials. On some
1756 * systems, such as Linux, reading/writing the byte isn't actually
1757 * required, but we do it anyway just to avoid multiple codepaths.
1759 * Fails if no byte is available, so you must select() first.
1761 * The point of the byte is that on some systems we have to
1762 * use sendmsg()/recvmsg() to transmit credentials.
1764 * @param client_fd the client file descriptor
1765 * @param credentials struct to fill with credentials of client
1766 * @param error location to store error code
1767 * @returns #TRUE on success
1770 _dbus_read_credentials_socket (int handle,
1771 DBusCredentials *credentials,
1781 // could fail due too OOM
1782 if (_dbus_string_init (&buf))
1784 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1787 _dbus_verbose ("got one zero byte from server\n");
1789 _dbus_string_free (&buf);
1792 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1796 _dbus_credentials_add_pid (credentials, pid);
1798 if (_dbus_getsid (&sid, pid))
1800 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1814 * Checks to make sure the given directory is
1815 * private to the user
1817 * @param dir the name of the directory
1818 * @param error error return
1819 * @returns #FALSE on failure
1822 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1825 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1831 * Appends the given filename to the given directory.
1833 * @todo it might be cute to collapse multiple '/' such as "foo//"
1836 * @param dir the directory name
1837 * @param next_component the filename
1838 * @returns #TRUE on success
1841 _dbus_concat_dir_and_file (DBusString *dir,
1842 const DBusString *next_component)
1844 dbus_bool_t dir_ends_in_slash;
1845 dbus_bool_t file_starts_with_slash;
1847 if (_dbus_string_get_length (dir) == 0 ||
1848 _dbus_string_get_length (next_component) == 0)
1852 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1853 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1855 file_starts_with_slash =
1856 ('/' == _dbus_string_get_byte (next_component, 0) ||
1857 '\\' == _dbus_string_get_byte (next_component, 0));
1859 if (dir_ends_in_slash && file_starts_with_slash)
1861 _dbus_string_shorten (dir, 1);
1863 else if (!(dir_ends_in_slash || file_starts_with_slash))
1865 if (!_dbus_string_append_byte (dir, '\\'))
1869 return _dbus_string_copy (next_component, 0, dir,
1870 _dbus_string_get_length (dir));
1873 /*---------------- DBusCredentials ----------------------------------*/
1876 * Adds the credentials corresponding to the given username.
1878 * @param credentials credentials to fill in
1879 * @param username the username
1880 * @returns #TRUE if the username existed and we got some credentials
1883 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1884 const DBusString *username)
1886 return _dbus_credentials_add_windows_sid (credentials,
1887 _dbus_string_get_const_data(username));
1891 * Adds the credentials of the current process to the
1892 * passed-in credentials object.
1894 * @param credentials credentials to add to
1895 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1899 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1901 dbus_bool_t retval = FALSE;
1904 if (!_dbus_getsid(&sid, _dbus_getpid()))
1907 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
1910 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1925 * Append to the string the identity we would like to have when we
1926 * authenticate, on UNIX this is the current process UID and on
1927 * Windows something else, probably a Windows SID string. No escaping
1928 * is required, that is done in dbus-auth.c. The username here
1929 * need not be anything human-readable, it can be the machine-readable
1930 * form i.e. a user id.
1932 * @param str the string to append to
1933 * @returns #FALSE on no memory
1934 * @todo to which class belongs this
1937 _dbus_append_user_from_current_process (DBusString *str)
1939 dbus_bool_t retval = FALSE;
1942 if (!_dbus_getsid(&sid, _dbus_getpid()))
1945 retval = _dbus_string_append (str,sid);
1952 * Gets our process ID
1953 * @returns process ID
1958 return GetCurrentProcessId ();
1961 /** nanoseconds in a second */
1962 #define NANOSECONDS_PER_SECOND 1000000000
1963 /** microseconds in a second */
1964 #define MICROSECONDS_PER_SECOND 1000000
1965 /** milliseconds in a second */
1966 #define MILLISECONDS_PER_SECOND 1000
1967 /** nanoseconds in a millisecond */
1968 #define NANOSECONDS_PER_MILLISECOND 1000000
1969 /** microseconds in a millisecond */
1970 #define MICROSECONDS_PER_MILLISECOND 1000
1973 * Sleeps the given number of milliseconds.
1974 * @param milliseconds number of milliseconds
1977 _dbus_sleep_milliseconds (int milliseconds)
1979 Sleep (milliseconds);
1984 * Get current time, as in gettimeofday(). Never uses the monotonic
1987 * @param tv_sec return location for number of seconds
1988 * @param tv_usec return location for number of microseconds
1991 _dbus_get_real_time (long *tv_sec,
1995 dbus_uint64_t time64;
1997 GetSystemTimeAsFileTime (&ft);
1999 memcpy (&time64, &ft, sizeof (time64));
2001 /* Convert from 100s of nanoseconds since 1601-01-01
2002 * to Unix epoch. Yes, this is Y2038 unsafe.
2004 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2008 *tv_sec = time64 / 1000000;
2011 *tv_usec = time64 % 1000000;
2015 * Get current time, as in gettimeofday(). Use the monotonic clock if
2016 * available, to avoid problems when the system time changes.
2018 * @param tv_sec return location for number of seconds
2019 * @param tv_usec return location for number of microseconds
2022 _dbus_get_monotonic_time (long *tv_sec,
2025 /* no implementation yet, fall back to wall-clock time */
2026 _dbus_get_real_time (tv_sec, tv_usec);
2030 * signal (SIGPIPE, SIG_IGN);
2033 _dbus_disable_sigpipe (void)
2038 * Creates a directory; succeeds if the directory
2039 * is created or already existed.
2041 * @param filename directory filename
2042 * @param error initialized error object
2043 * @returns #TRUE on success
2046 _dbus_create_directory (const DBusString *filename,
2049 const char *filename_c;
2051 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2053 filename_c = _dbus_string_get_const_data (filename);
2055 if (!CreateDirectoryA (filename_c, NULL))
2057 if (GetLastError () == ERROR_ALREADY_EXISTS)
2060 dbus_set_error (error, DBUS_ERROR_FAILED,
2061 "Failed to create directory %s: %s\n",
2062 filename_c, _dbus_strerror_from_errno ());
2071 * Generates the given number of random bytes,
2072 * using the best mechanism we can come up with.
2074 * @param str the string
2075 * @param n_bytes the number of random bytes to append to string
2076 * @returns #TRUE on success, #FALSE if no memory
2079 _dbus_generate_random_bytes (DBusString *str,
2086 old_len = _dbus_string_get_length (str);
2088 if (!_dbus_string_lengthen (str, n_bytes))
2091 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2093 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2096 if (!CryptGenRandom (hprov, n_bytes, p))
2098 CryptReleaseContext (hprov, 0);
2102 CryptReleaseContext (hprov, 0);
2108 * Gets the temporary files directory by inspecting the environment variables
2109 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2111 * @returns location of temp directory
2114 _dbus_get_tmpdir(void)
2116 static const char* tmpdir = NULL;
2117 static char buf[1000];
2123 if (!GetTempPathA (sizeof (buf), buf))
2125 _dbus_warn ("GetTempPath failed\n");
2129 /* Drop terminating backslash or slash */
2130 last_slash = _mbsrchr (buf, '\\');
2131 if (last_slash > buf && last_slash[1] == '\0')
2132 last_slash[0] = '\0';
2133 last_slash = _mbsrchr (buf, '/');
2134 if (last_slash > buf && last_slash[1] == '\0')
2135 last_slash[0] = '\0';
2140 _dbus_assert(tmpdir != NULL);
2147 * Deletes the given file.
2149 * @param filename the filename
2150 * @param error error location
2152 * @returns #TRUE if unlink() succeeded
2155 _dbus_delete_file (const DBusString *filename,
2158 const char *filename_c;
2160 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2162 filename_c = _dbus_string_get_const_data (filename);
2164 if (DeleteFileA (filename_c) == 0)
2166 dbus_set_error (error, DBUS_ERROR_FAILED,
2167 "Failed to delete file %s: %s\n",
2168 filename_c, _dbus_strerror_from_errno ());
2176 * replaces the term DBUS_PREFIX in configure_time_path by the
2177 * current dbus installation directory. On unix this function is a noop
2179 * @param configure_time_path
2183 _dbus_replace_install_prefix (const char *configure_time_path)
2186 return configure_time_path;
2188 static char retval[1000];
2189 static char runtime_prefix[1000];
2193 if (!configure_time_path)
2196 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2197 strncmp (configure_time_path, DBUS_PREFIX "/",
2198 strlen (DBUS_PREFIX) + 1))) {
2199 strcat (retval, configure_time_path);
2203 strcpy (retval, runtime_prefix);
2204 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2206 /* Somehow, in some situations, backslashes get collapsed in the string.
2207 * Since windows C library accepts both forward and backslashes as
2208 * path separators, convert all backslashes to forward slashes.
2211 for(i = 0; retval[i] != '\0'; i++) {
2212 if(retval[i] == '\\')
2219 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
2221 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2231 * Backtrace Generator
2233 * Copyright 2004 Eric Poech
2234 * Copyright 2004 Robert Shearman
2236 * This library is free software; you can redistribute it and/or
2237 * modify it under the terms of the GNU Lesser General Public
2238 * License as published by the Free Software Foundation; either
2239 * version 2.1 of the License, or (at your option) any later version.
2241 * This library is distributed in the hope that it will be useful,
2242 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2243 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2244 * Lesser General Public License for more details.
2246 * You should have received a copy of the GNU Lesser General Public
2247 * License along with this library; if not, write to the Free Software
2248 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2252 #include <imagehlp.h>
2255 #define DPRINTF _dbus_warn
2263 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2265 //MAKE_FUNCPTR(StackWalk);
2266 //MAKE_FUNCPTR(SymGetModuleBase);
2267 //MAKE_FUNCPTR(SymFunctionTableAccess);
2268 //MAKE_FUNCPTR(SymInitialize);
2269 //MAKE_FUNCPTR(SymGetSymFromAddr);
2270 //MAKE_FUNCPTR(SymGetModuleInfo);
2271 static BOOL (WINAPI *pStackWalk)(
2275 LPSTACKFRAME StackFrame,
2276 PVOID ContextRecord,
2277 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2278 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2279 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2280 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2283 static DWORD64 (WINAPI *pSymGetModuleBase)(
2287 static PVOID (WINAPI *pSymFunctionTableAccess)(
2292 static DWORD (WINAPI *pSymGetModuleBase)(
2296 static PVOID (WINAPI *pSymFunctionTableAccess)(
2301 static BOOL (WINAPI *pSymInitialize)(
2303 PSTR UserSearchPath,
2306 static BOOL (WINAPI *pSymGetSymFromAddr)(
2309 PDWORD Displacement,
2310 PIMAGEHLP_SYMBOL Symbol
2312 static BOOL (WINAPI *pSymGetModuleInfo)(
2315 PIMAGEHLP_MODULE ModuleInfo
2317 static DWORD (WINAPI *pSymSetOptions)(
2322 static BOOL init_backtrace()
2324 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2326 #define GETFUNC(x) \
2327 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2335 // GETFUNC(StackWalk);
2336 // GETFUNC(SymGetModuleBase);
2337 // GETFUNC(SymFunctionTableAccess);
2338 // GETFUNC(SymInitialize);
2339 // GETFUNC(SymGetSymFromAddr);
2340 // GETFUNC(SymGetModuleInfo);
2344 pStackWalk = (BOOL (WINAPI *)(
2348 LPSTACKFRAME StackFrame,
2349 PVOID ContextRecord,
2350 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2351 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2352 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2353 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2354 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2356 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2359 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2360 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2363 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2365 pSymGetModuleBase=(DWORD (WINAPI *)(
2368 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2369 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2372 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2374 pSymInitialize = (BOOL (WINAPI *)(
2376 PSTR UserSearchPath,
2378 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2379 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2382 PDWORD Displacement,
2383 PIMAGEHLP_SYMBOL Symbol
2384 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2385 pSymGetModuleInfo = (BOOL (WINAPI *)(
2388 PIMAGEHLP_MODULE ModuleInfo
2389 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2390 pSymSetOptions = (DWORD (WINAPI *)(
2392 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2395 pSymSetOptions(SYMOPT_UNDNAME);
2397 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2402 static void dump_backtrace_for_thread(HANDLE hThread)
2409 if (!init_backtrace())
2412 /* can't use this function for current thread as GetThreadContext
2413 * doesn't support getting context from current thread */
2414 if (hThread == GetCurrentThread())
2417 DPRINTF("Backtrace:\n");
2419 _DBUS_ZERO(context);
2420 context.ContextFlags = CONTEXT_FULL;
2422 SuspendThread(hThread);
2424 if (!GetThreadContext(hThread, &context))
2426 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2427 ResumeThread(hThread);
2434 sf.AddrFrame.Offset = context.Ebp;
2435 sf.AddrFrame.Mode = AddrModeFlat;
2436 sf.AddrPC.Offset = context.Eip;
2437 sf.AddrPC.Mode = AddrModeFlat;
2438 dwImageType = IMAGE_FILE_MACHINE_I386;
2440 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2441 sf.AddrPC.Offset = context.Rip;
2442 sf.AddrPC.Mode = AddrModeFlat;
2443 sf.AddrFrame.Offset = context.Rsp;
2444 sf.AddrFrame.Mode = AddrModeFlat;
2445 sf.AddrStack.Offset = context.Rsp;
2446 sf.AddrStack.Mode = AddrModeFlat;
2448 dwImageType = IMAGE_FILE_MACHINE_IA64;
2449 sf.AddrPC.Offset = context.StIIP;
2450 sf.AddrPC.Mode = AddrModeFlat;
2451 sf.AddrFrame.Offset = context.IntSp;
2452 sf.AddrFrame.Mode = AddrModeFlat;
2453 sf.AddrBStore.Offset= context.RsBSP;
2454 sf.AddrBStore.Mode = AddrModeFlat;
2455 sf.AddrStack.Offset = context.IntSp;
2456 sf.AddrStack.Mode = AddrModeFlat;
2458 # error You need to fill in the STACKFRAME structure for your architecture
2461 while (pStackWalk(dwImageType, GetCurrentProcess(),
2462 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2463 pSymGetModuleBase, NULL))
2466 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2467 DWORD dwDisplacement;
2469 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2470 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2472 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2473 &dwDisplacement, pSymbol))
2475 IMAGEHLP_MODULE ModuleInfo;
2476 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2478 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2480 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2482 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2483 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2485 else if (dwDisplacement)
2486 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2488 DPRINTF("4\t%s\n", pSymbol->Name);
2491 ResumeThread(hThread);
2494 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2496 dump_backtrace_for_thread((HANDLE)lpParameter);
2500 /* cannot get valid context from current thread, so we have to execute
2501 * backtrace from another thread */
2502 static void dump_backtrace()
2504 HANDLE hCurrentThread;
2507 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2508 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2509 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2511 WaitForSingleObject(hThread, INFINITE);
2512 CloseHandle(hThread);
2513 CloseHandle(hCurrentThread);
2516 #endif /* asserts or tests enabled */
2519 void _dbus_print_backtrace(void)
2525 void _dbus_print_backtrace(void)
2527 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2531 static dbus_uint32_t fromAscii(char ascii)
2533 if(ascii >= '0' && ascii <= '9')
2535 if(ascii >= 'A' && ascii <= 'F')
2536 return ascii - 'A' + 10;
2537 if(ascii >= 'a' && ascii <= 'f')
2538 return ascii - 'a' + 10;
2542 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2543 dbus_bool_t create_if_not_found,
2550 HW_PROFILE_INFOA info;
2551 char *lpc = &info.szHwProfileGuid[0];
2554 // the hw-profile guid lives long enough
2555 if(!GetCurrentHwProfileA(&info))
2557 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2561 // Form: {12340001-4980-1920-6788-123456789012}
2564 u = ((fromAscii(lpc[0]) << 0) |
2565 (fromAscii(lpc[1]) << 4) |
2566 (fromAscii(lpc[2]) << 8) |
2567 (fromAscii(lpc[3]) << 12) |
2568 (fromAscii(lpc[4]) << 16) |
2569 (fromAscii(lpc[5]) << 20) |
2570 (fromAscii(lpc[6]) << 24) |
2571 (fromAscii(lpc[7]) << 28));
2572 machine_id->as_uint32s[0] = u;
2576 u = ((fromAscii(lpc[0]) << 0) |
2577 (fromAscii(lpc[1]) << 4) |
2578 (fromAscii(lpc[2]) << 8) |
2579 (fromAscii(lpc[3]) << 12) |
2580 (fromAscii(lpc[5]) << 16) |
2581 (fromAscii(lpc[6]) << 20) |
2582 (fromAscii(lpc[7]) << 24) |
2583 (fromAscii(lpc[8]) << 28));
2584 machine_id->as_uint32s[1] = u;
2588 u = ((fromAscii(lpc[0]) << 0) |
2589 (fromAscii(lpc[1]) << 4) |
2590 (fromAscii(lpc[2]) << 8) |
2591 (fromAscii(lpc[3]) << 12) |
2592 (fromAscii(lpc[5]) << 16) |
2593 (fromAscii(lpc[6]) << 20) |
2594 (fromAscii(lpc[7]) << 24) |
2595 (fromAscii(lpc[8]) << 28));
2596 machine_id->as_uint32s[2] = u;
2600 u = ((fromAscii(lpc[0]) << 0) |
2601 (fromAscii(lpc[1]) << 4) |
2602 (fromAscii(lpc[2]) << 8) |
2603 (fromAscii(lpc[3]) << 12) |
2604 (fromAscii(lpc[4]) << 16) |
2605 (fromAscii(lpc[5]) << 20) |
2606 (fromAscii(lpc[6]) << 24) |
2607 (fromAscii(lpc[7]) << 28));
2608 machine_id->as_uint32s[3] = u;
2614 HANDLE _dbus_global_lock (const char *mutexname)
2619 mutex = CreateMutexA( NULL, FALSE, mutexname );
2625 gotMutex = WaitForSingleObject( mutex, INFINITE );
2628 case WAIT_ABANDONED:
2629 ReleaseMutex (mutex);
2630 CloseHandle (mutex);
2641 void _dbus_global_unlock (HANDLE mutex)
2643 ReleaseMutex (mutex);
2644 CloseHandle (mutex);
2647 // for proper cleanup in dbus-daemon
2648 static HANDLE hDBusDaemonMutex = NULL;
2649 static HANDLE hDBusSharedMem = NULL;
2650 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2651 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2652 // sync _dbus_get_autolaunch_address
2653 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2654 // mutex to determine if dbus-daemon is already started (per user)
2655 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2656 // named shm for dbus adress info (per user)
2657 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2660 _dbus_get_install_root_as_hash(DBusString *out)
2662 DBusString install_path;
2664 char path[MAX_PATH*2];
2665 int path_size = sizeof(path);
2667 if (!_dbus_get_install_root(path,path_size))
2670 _dbus_string_init(&install_path);
2671 _dbus_string_append(&install_path,path);
2673 _dbus_string_init(out);
2674 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2676 if (!_dbus_sha_compute (&install_path, out))
2683 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2685 _dbus_string_init(out);
2686 _dbus_string_append(out,basestring);
2692 else if (strcmp(scope,"*install-path") == 0
2693 // for 1.3 compatibility
2694 || strcmp(scope,"install-path") == 0)
2697 if (!_dbus_get_install_root_as_hash(&temp))
2699 _dbus_string_free(out);
2702 _dbus_string_append(out,"-");
2703 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2704 _dbus_string_free(&temp);
2706 else if (strcmp(scope,"*user") == 0)
2708 _dbus_string_append(out,"-");
2709 if (!_dbus_append_user_from_current_process(out))
2711 _dbus_string_free(out);
2715 else if (strlen(scope) > 0)
2717 _dbus_string_append(out,"-");
2718 _dbus_string_append(out,scope);
2725 _dbus_get_shm_name (DBusString *out,const char *scope)
2727 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2731 _dbus_get_mutex_name (DBusString *out,const char *scope)
2733 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2737 _dbus_daemon_is_session_bus_address_published (const char *scope)
2740 DBusString mutex_name;
2742 if (!_dbus_get_mutex_name(&mutex_name,scope))
2744 _dbus_string_free( &mutex_name );
2748 if (hDBusDaemonMutex)
2751 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2752 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2754 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2755 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2756 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2758 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2759 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2762 _dbus_global_unlock( lock );
2764 _dbus_string_free( &mutex_name );
2766 if (hDBusDaemonMutex == NULL)
2768 if (GetLastError() == ERROR_ALREADY_EXISTS)
2770 CloseHandle(hDBusDaemonMutex);
2771 hDBusDaemonMutex = NULL;
2774 // mutex wasn't created before, so return false.
2775 // We leave the mutex name allocated for later reusage
2776 // in _dbus_daemon_publish_session_bus_address.
2781 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2784 char *shared_addr = NULL;
2785 DBusString shm_name;
2786 DBusString mutex_name;
2788 _dbus_assert (address);
2790 if (!_dbus_get_mutex_name(&mutex_name,scope))
2792 _dbus_string_free( &mutex_name );
2796 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2797 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2799 if (!hDBusDaemonMutex)
2801 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2803 _dbus_string_free( &mutex_name );
2805 // acquire the mutex
2806 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2808 _dbus_global_unlock( lock );
2809 CloseHandle( hDBusDaemonMutex );
2813 if (!_dbus_get_shm_name(&shm_name,scope))
2815 _dbus_string_free( &shm_name );
2816 _dbus_global_unlock( lock );
2821 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2822 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2823 _dbus_assert( hDBusSharedMem );
2825 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2827 _dbus_assert (shared_addr);
2829 strcpy( shared_addr, address);
2832 UnmapViewOfFile( shared_addr );
2834 _dbus_global_unlock( lock );
2835 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2837 _dbus_string_free( &shm_name );
2842 _dbus_daemon_unpublish_session_bus_address (void)
2846 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2847 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2849 CloseHandle( hDBusSharedMem );
2851 hDBusSharedMem = NULL;
2853 ReleaseMutex( hDBusDaemonMutex );
2855 CloseHandle( hDBusDaemonMutex );
2857 hDBusDaemonMutex = NULL;
2859 _dbus_global_unlock( lock );
2863 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2871 // we know that dbus-daemon is available, so we wait until shm is available
2872 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2873 if( sharedMem == 0 )
2875 if ( sharedMem != 0)
2879 if( sharedMem == 0 )
2882 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2887 _dbus_string_init( address );
2889 _dbus_string_append( address, shared_addr );
2892 UnmapViewOfFile( shared_addr );
2894 CloseHandle( sharedMem );
2900 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2904 DBusString mutex_name;
2905 dbus_bool_t bRet = TRUE;
2907 if (!_dbus_get_mutex_name(&mutex_name,scope))
2909 _dbus_string_free( &mutex_name );
2913 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2914 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2917 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2918 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2920 ReleaseMutex (daemon);
2921 CloseHandle (daemon);
2923 _dbus_global_unlock( lock );
2924 _dbus_string_free( &mutex_name );
2929 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2932 CloseHandle ( daemon );
2934 _dbus_global_unlock( lock );
2935 _dbus_string_free( &mutex_name );
2941 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2946 PROCESS_INFORMATION pi;
2947 dbus_bool_t retval = FALSE;
2949 char dbus_exe_path[MAX_PATH];
2950 char dbus_args[MAX_PATH * 2];
2951 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2952 DBusString shm_name;
2954 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2956 if (!_dbus_get_shm_name(&shm_name,scope))
2958 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2962 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2964 if (_dbus_daemon_already_runs(address,&shm_name,scope))
2966 _dbus_verbose( "found running dbus daemon at %s\n",
2967 _dbus_string_get_const_data (&shm_name) );
2972 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2974 // Look in directory containing dbus shared library
2976 char dbus_module_path[MAX_PATH];
2979 _dbus_verbose( "did not found dbus daemon executable on default search path, "
2980 "trying path where dbus shared library is located");
2982 hmod = _dbus_win_get_dll_hmodule();
2983 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
2986 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
2992 char *ext_idx = strrchr(dbus_module_path, '\\');
2995 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2997 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
2999 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3000 printf ("or start the daemon manually\n\n");
3003 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3009 ZeroMemory( &si, sizeof(si) );
3011 ZeroMemory( &pi, sizeof(pi) );
3013 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3015 // argv[i] = "--config-file=bus\\session.conf";
3016 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3017 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3019 CloseHandle (pi.hThread);
3020 CloseHandle (pi.hProcess);
3021 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3022 if (retval == FALSE)
3023 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3027 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3033 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3035 _DBUS_ASSERT_ERROR_IS_SET (error);
3037 _dbus_global_unlock (mutex);
3043 /** Makes the file readable by every user in the system.
3045 * @param filename the filename
3046 * @param error error location
3047 * @returns #TRUE if the file's permissions could be changed.
3050 _dbus_make_file_world_readable(const DBusString *filename,
3058 * return the relocated DATADIR
3060 * @returns relocated DATADIR static string
3064 _dbus_windows_get_datadir (void)
3066 return _dbus_replace_install_prefix(DBUS_DATADIR);
3070 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3073 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3074 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3077 * Returns the standard directories for a session bus to look for service
3080 * On Windows this should be data directories:
3082 * %CommonProgramFiles%/dbus
3086 * relocated DBUS_DATADIR
3088 * @param dirs the directory list we are returning
3089 * @returns #FALSE on OOM
3093 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3095 const char *common_progs;
3096 DBusString servicedir_path;
3098 if (!_dbus_string_init (&servicedir_path))
3103 /* On Windows CE, we adjust datadir dynamically to installation location. */
3104 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3106 if (data_dir != NULL)
3108 if (!_dbus_string_append (&servicedir_path, data_dir))
3111 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3117 the code for accessing services requires absolute base pathes
3118 in case DBUS_DATADIR is relative make it absolute
3124 _dbus_string_init_const (&p, DBUS_DATADIR);
3126 if (!_dbus_path_is_absolute (&p))
3128 char install_root[1000];
3129 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3130 if (!_dbus_string_append (&servicedir_path, install_root))
3135 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3138 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3142 common_progs = _dbus_getenv ("CommonProgramFiles");
3144 if (common_progs != NULL)
3146 if (!_dbus_string_append (&servicedir_path, common_progs))
3149 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3153 if (!_dbus_split_paths_and_append (&servicedir_path,
3154 DBUS_STANDARD_SESSION_SERVICEDIR,
3158 _dbus_string_free (&servicedir_path);
3162 _dbus_string_free (&servicedir_path);
3167 * Returns the standard directories for a system bus to look for service
3170 * On UNIX this should be the standard xdg freedesktop.org data directories:
3172 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3178 * On Windows there is no system bus and this function can return nothing.
3180 * @param dirs the directory list we are returning
3181 * @returns #FALSE on OOM
3185 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3192 * Atomically increments an integer
3194 * @param atomic pointer to the integer to increment
3195 * @returns the value before incrementing
3199 _dbus_atomic_inc (DBusAtomic *atomic)
3201 // +/- 1 is needed here!
3202 // no volatile argument with mingw
3203 return InterlockedIncrement (&atomic->value) - 1;
3207 * Atomically decrement an integer
3209 * @param atomic pointer to the integer to decrement
3210 * @returns the value before decrementing
3214 _dbus_atomic_dec (DBusAtomic *atomic)
3216 // +/- 1 is needed here!
3217 // no volatile argument with mingw
3218 return InterlockedDecrement (&atomic->value) + 1;
3222 * Atomically get the value of an integer. It may change at any time
3223 * thereafter, so this is mostly only useful for assertions.
3225 * @param atomic pointer to the integer to get
3226 * @returns the value at this moment
3229 _dbus_atomic_get (DBusAtomic *atomic)
3231 /* In this situation, GLib issues a MemoryBarrier() and then returns
3232 * atomic->value. However, mingw from mingw.org (not to be confused with
3233 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3234 * headers, so we have to get a memory barrier some other way.
3236 * InterlockedIncrement is older, and is documented on MSDN to be a full
3237 * memory barrier, so let's use that.
3241 InterlockedExchange (&dummy, 1);
3243 return atomic->value;
3247 * Called when the bus daemon is signaled to reload its configuration; any
3248 * caches should be nuked. Of course any caches that need explicit reload
3249 * are probably broken, but c'est la vie.
3254 _dbus_flush_caches (void)
3259 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3260 * for Winsock so is abstracted)
3262 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3265 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3267 return errno == WSAEWOULDBLOCK;
3271 * return the absolute path of the dbus installation
3273 * @param s buffer for installation path
3274 * @param len length of buffer
3275 * @returns #FALSE on failure
3278 _dbus_get_install_root(char *prefix, int len)
3280 //To find the prefix, we cut the filename and also \bin\ if present
3284 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3285 if ( pathLength == 0 || GetLastError() != 0 ) {
3289 lastSlash = _mbsrchr(prefix, '\\');
3290 if (lastSlash == NULL) {
3294 //cut off binary name
3297 //cut possible "\\bin"
3299 //this fails if we are in a double-byte system codepage and the
3300 //folder's name happens to end with the *bytes*
3301 //"\\bin"... (I.e. the second byte of some Han character and then
3302 //the Latin "bin", but that is not likely I think...
3303 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3305 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3307 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3314 find config file either from installation or build root according to
3315 the following path layout
3317 bin/dbus-daemon[d].exe
3318 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3319 (the former above is what dbus4win uses, the latter above is
3320 what a "normal" Unix-style "make install" uses)
3323 bin/dbus-daemon[d].exe
3324 bus/<config-file>.conf
3327 _dbus_get_config_file_name(DBusString *config_file, char *s)
3329 char path[MAX_PATH*2];
3330 int path_size = sizeof(path);
3332 if (!_dbus_get_install_root(path,path_size))
3335 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3337 strcat(path,"etc\\");
3339 if (_dbus_file_exists(path))
3341 // find path from executable
3342 if (!_dbus_string_append (config_file, path))
3347 if (!_dbus_get_install_root(path,path_size))
3349 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3351 strcat(path,"etc\\dbus-1\\");
3354 if (_dbus_file_exists(path))
3356 if (!_dbus_string_append (config_file, path))
3361 if (!_dbus_get_install_root(path,path_size))
3363 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3365 strcat(path,"bus\\");
3368 if (_dbus_file_exists(path))
3370 if (!_dbus_string_append (config_file, path))
3379 * Append the absolute path of the system.conf file
3380 * (there is no system bus on Windows so this can just
3381 * return FALSE and print a warning or something)
3383 * @param str the string to append to
3384 * @returns #FALSE if no memory
3387 _dbus_append_system_config_file (DBusString *str)
3389 return _dbus_get_config_file_name(str, "system.conf");
3393 * Append the absolute path of the session.conf file.
3395 * @param str the string to append to
3396 * @returns #FALSE if no memory
3399 _dbus_append_session_config_file (DBusString *str)
3401 return _dbus_get_config_file_name(str, "session.conf");
3404 /* See comment in dbus-sysdeps-unix.c */
3406 _dbus_lookup_session_address (dbus_bool_t *supported,
3407 DBusString *address,
3410 /* Probably fill this in with something based on COM? */
3416 * Appends the directory in which a keyring for the given credentials
3417 * should be stored. The credentials should have either a Windows or
3418 * UNIX user in them. The directory should be an absolute path.
3420 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3421 * be something else, since the dotfile convention is not normal on Windows.
3423 * @param directory string to append directory to
3424 * @param credentials credentials the directory should be for
3426 * @returns #FALSE on no memory
3429 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3430 DBusCredentials *credentials)
3434 const char *homepath;
3435 const char *homedrive;
3437 _dbus_assert (credentials != NULL);
3438 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3440 if (!_dbus_string_init (&homedir))
3443 homedrive = _dbus_getenv("HOMEDRIVE");
3444 if (homedrive != NULL && *homedrive != '\0')
3446 _dbus_string_append(&homedir,homedrive);
3449 homepath = _dbus_getenv("HOMEPATH");
3450 if (homepath != NULL && *homepath != '\0')
3452 _dbus_string_append(&homedir,homepath);
3455 #ifdef DBUS_BUILD_TESTS
3457 const char *override;
3459 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3460 if (override != NULL && *override != '\0')
3462 _dbus_string_set_length (&homedir, 0);
3463 if (!_dbus_string_append (&homedir, override))
3466 _dbus_verbose ("Using fake homedir for testing: %s\n",
3467 _dbus_string_get_const_data (&homedir));
3471 static dbus_bool_t already_warned = FALSE;
3472 if (!already_warned)
3474 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3475 already_warned = TRUE;
3482 /* It's not possible to create a .something directory in Windows CE
3483 using the file explorer. */
3484 #define KEYRING_DIR "dbus-keyrings"
3486 #define KEYRING_DIR ".dbus-keyrings"
3489 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3490 if (!_dbus_concat_dir_and_file (&homedir,
3494 if (!_dbus_string_copy (&homedir, 0,
3495 directory, _dbus_string_get_length (directory))) {
3499 _dbus_string_free (&homedir);
3503 _dbus_string_free (&homedir);
3507 /** Checks if a file exists
3509 * @param file full path to the file
3510 * @returns #TRUE if file exists
3513 _dbus_file_exists (const char *file)
3515 DWORD attributes = GetFileAttributesA (file);
3517 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3524 * A wrapper around strerror() because some platforms
3525 * may be lame and not have strerror().
3527 * @param error_number errno.
3528 * @returns error description.
3531 _dbus_strerror (int error_number)
3539 switch (error_number)
3542 return "Interrupted function call";
3544 return "Permission denied";
3546 return "Bad address";
3548 return "Invalid argument";
3550 return "Too many open files";
3551 case WSAEWOULDBLOCK:
3552 return "Resource temporarily unavailable";
3553 case WSAEINPROGRESS:
3554 return "Operation now in progress";
3556 return "Operation already in progress";
3558 return "Socket operation on nonsocket";
3559 case WSAEDESTADDRREQ:
3560 return "Destination address required";
3562 return "Message too long";
3564 return "Protocol wrong type for socket";
3565 case WSAENOPROTOOPT:
3566 return "Bad protocol option";
3567 case WSAEPROTONOSUPPORT:
3568 return "Protocol not supported";
3569 case WSAESOCKTNOSUPPORT:
3570 return "Socket type not supported";
3572 return "Operation not supported";
3573 case WSAEPFNOSUPPORT:
3574 return "Protocol family not supported";
3575 case WSAEAFNOSUPPORT:
3576 return "Address family not supported by protocol family";
3578 return "Address already in use";
3579 case WSAEADDRNOTAVAIL:
3580 return "Cannot assign requested address";
3582 return "Network is down";
3583 case WSAENETUNREACH:
3584 return "Network is unreachable";
3586 return "Network dropped connection on reset";
3587 case WSAECONNABORTED:
3588 return "Software caused connection abort";
3590 return "Connection reset by peer";
3592 return "No buffer space available";
3594 return "Socket is already connected";
3596 return "Socket is not connected";
3598 return "Cannot send after socket shutdown";
3600 return "Connection timed out";
3601 case WSAECONNREFUSED:
3602 return "Connection refused";
3604 return "Host is down";
3605 case WSAEHOSTUNREACH:
3606 return "No route to host";
3608 return "Too many processes";
3610 return "Graceful shutdown in progress";
3611 case WSATYPE_NOT_FOUND:
3612 return "Class type not found";
3613 case WSAHOST_NOT_FOUND:
3614 return "Host not found";
3616 return "Nonauthoritative host not found";
3617 case WSANO_RECOVERY:
3618 return "This is a nonrecoverable error";
3620 return "Valid name, no data record of requested type";
3621 case WSA_INVALID_HANDLE:
3622 return "Specified event object handle is invalid";
3623 case WSA_INVALID_PARAMETER:
3624 return "One or more parameters are invalid";
3625 case WSA_IO_INCOMPLETE:
3626 return "Overlapped I/O event object not in signaled state";
3627 case WSA_IO_PENDING:
3628 return "Overlapped operations will complete later";
3629 case WSA_NOT_ENOUGH_MEMORY:
3630 return "Insufficient memory available";
3631 case WSA_OPERATION_ABORTED:
3632 return "Overlapped operation aborted";
3633 #ifdef WSAINVALIDPROCTABLE
3635 case WSAINVALIDPROCTABLE:
3636 return "Invalid procedure table from service provider";
3638 #ifdef WSAINVALIDPROVIDER
3640 case WSAINVALIDPROVIDER:
3641 return "Invalid service provider version number";
3643 #ifdef WSAPROVIDERFAILEDINIT
3645 case WSAPROVIDERFAILEDINIT:
3646 return "Unable to initialize a service provider";
3649 case WSASYSCALLFAILURE:
3650 return "System call failure";
3652 msg = strerror (error_number);
3661 * Assigns an error name and message corresponding to a Win32 error
3662 * code to a DBusError. Does nothing if error is #NULL.
3664 * @param error the error.
3665 * @param code the Win32 error code
3668 _dbus_win_set_error_from_win_error (DBusError *error,
3673 /* As we want the English message, use the A API */
3674 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3675 FORMAT_MESSAGE_IGNORE_INSERTS |
3676 FORMAT_MESSAGE_FROM_SYSTEM,
3677 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3678 (LPSTR) &msg, 0, NULL);
3683 msg_copy = dbus_malloc (strlen (msg));
3684 strcpy (msg_copy, msg);
3687 dbus_set_error (error, "win32.error", "%s", msg_copy);
3690 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3694 _dbus_win_warn_win_error (const char *message,
3699 dbus_error_init (&error);
3700 _dbus_win_set_error_from_win_error (&error, code);
3701 _dbus_warn ("%s: %s\n", message, error.message);
3702 dbus_error_free (&error);
3706 * Removes a directory; Directory must be empty
3708 * @param filename directory filename
3709 * @param error initialized error object
3710 * @returns #TRUE on success
3713 _dbus_delete_directory (const DBusString *filename,
3716 const char *filename_c;
3718 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3720 filename_c = _dbus_string_get_const_data (filename);
3722 if (RemoveDirectoryA (filename_c) == 0)
3724 char *emsg = _dbus_win_error_string (GetLastError ());
3725 dbus_set_error (error, _dbus_win_error_from_last_error (),
3726 "Failed to remove directory %s: %s",
3728 _dbus_win_free_error_string (emsg);
3736 * Checks whether the filename is an absolute path
3738 * @param filename the filename
3739 * @returns #TRUE if an absolute path
3742 _dbus_path_is_absolute (const DBusString *filename)
3744 if (_dbus_string_get_length (filename) > 0)
3745 return _dbus_string_get_byte (filename, 1) == ':'
3746 || _dbus_string_get_byte (filename, 0) == '\\'
3747 || _dbus_string_get_byte (filename, 0) == '/';
3753 _dbus_check_setuid (void)
3758 /** @} end of sysdeps-win */
3759 /* tests in dbus-sysdeps-util.c */