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 */
631 bufsize = sizeof (buf);
632 DBUS_VA_COPY (args_copy, args);
633 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
636 while (len == -1) /* try again */
642 p = malloc (bufsize);
647 DBUS_VA_COPY (args_copy, args);
648 len = _vsnprintf (p, bufsize - 1, format, args_copy);
658 * Returns the UTF-16 form of a UTF-8 string. The result should be
659 * freed with dbus_free() when no longer needed.
661 * @param str the UTF-8 string
662 * @param error return location for error code
665 _dbus_win_utf8_to_utf16 (const char *str,
672 _dbus_string_init_const (&s, str);
674 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
676 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
680 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
684 _dbus_win_set_error_from_win_error (error, GetLastError ());
688 retval = dbus_new (wchar_t, n);
692 _DBUS_SET_OOM (error);
696 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
699 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
707 * Returns the UTF-8 form of a UTF-16 string. The result should be
708 * freed with dbus_free() when no longer needed.
710 * @param str the UTF-16 string
711 * @param error return location for error code
714 _dbus_win_utf16_to_utf8 (const wchar_t *str,
720 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
724 _dbus_win_set_error_from_win_error (error, GetLastError ());
728 retval = dbus_malloc (n);
732 _DBUS_SET_OOM (error);
736 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
739 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
751 /************************************************************************
754 ************************************************************************/
757 _dbus_win_account_to_sid (const wchar_t *waccount,
761 dbus_bool_t retval = FALSE;
762 DWORD sid_length, wdomain_length;
770 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
771 NULL, &wdomain_length, &use) &&
772 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
774 _dbus_win_set_error_from_win_error (error, GetLastError ());
778 *ppsid = dbus_malloc (sid_length);
781 _DBUS_SET_OOM (error);
785 wdomain = dbus_new (wchar_t, wdomain_length);
788 _DBUS_SET_OOM (error);
792 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
793 wdomain, &wdomain_length, &use))
795 _dbus_win_set_error_from_win_error (error, GetLastError ());
799 if (!IsValidSid ((PSID) *ppsid))
801 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
819 /** @} end of sysdeps-win */
823 * The only reason this is separate from _dbus_getpid() is to allow it
824 * on Windows for logging but not for other purposes.
826 * @returns process ID to put in log messages
829 _dbus_pid_for_log (void)
831 return _dbus_getpid ();
836 * @param sid points to sid buffer, need to be freed with LocalFree()
837 * @param process_id the process id for which the sid should be returned
838 * @returns process sid
841 _dbus_getsid(char **sid, dbus_pid_t process_id)
843 HANDLE process_token = INVALID_HANDLE_VALUE;
844 TOKEN_USER *token_user = NULL;
848 HANDLE process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
850 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
852 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
855 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
856 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
857 || (token_user = alloca (n)) == NULL
858 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
860 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
863 psid = token_user->User.Sid;
864 if (!IsValidSid (psid))
866 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
869 if (!ConvertSidToStringSidA (psid, sid))
871 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
878 CloseHandle (process_handle);
879 if (process_token != INVALID_HANDLE_VALUE)
880 CloseHandle (process_token);
882 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
887 /************************************************************************
891 ************************************************************************/
894 * Creates a full-duplex pipe (as in socketpair()).
895 * Sets both ends of the pipe nonblocking.
897 * @param fd1 return location for one end
898 * @param fd2 return location for the other end
899 * @param blocking #TRUE if pipe should be blocking
900 * @param error error return
901 * @returns #FALSE on failure (if error is set)
904 _dbus_full_duplex_pipe (int *fd1,
906 dbus_bool_t blocking,
909 SOCKET temp, socket1 = -1, socket2 = -1;
910 struct sockaddr_in saddr;
914 _dbus_win_startup_winsock ();
916 temp = socket (AF_INET, SOCK_STREAM, 0);
917 if (temp == INVALID_SOCKET)
919 DBUS_SOCKET_SET_ERRNO ();
924 saddr.sin_family = AF_INET;
926 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
928 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
930 DBUS_SOCKET_SET_ERRNO ();
934 if (listen (temp, 1) == SOCKET_ERROR)
936 DBUS_SOCKET_SET_ERRNO ();
940 len = sizeof (saddr);
941 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
943 DBUS_SOCKET_SET_ERRNO ();
947 socket1 = socket (AF_INET, SOCK_STREAM, 0);
948 if (socket1 == INVALID_SOCKET)
950 DBUS_SOCKET_SET_ERRNO ();
954 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
956 DBUS_SOCKET_SET_ERRNO ();
960 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
961 if (socket2 == INVALID_SOCKET)
963 DBUS_SOCKET_SET_ERRNO ();
970 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
972 DBUS_SOCKET_SET_ERRNO ();
977 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
979 DBUS_SOCKET_SET_ERRNO ();
987 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
988 *fd1, socket1, *fd2, socket2);
995 closesocket (socket2);
997 closesocket (socket1);
1001 dbus_set_error (error, _dbus_error_from_errno (errno),
1002 "Could not setup socket pair: %s",
1003 _dbus_strerror_from_errno ());
1009 * Wrapper for poll().
1011 * @param fds the file descriptors to poll
1012 * @param n_fds number of descriptors in the array
1013 * @param timeout_milliseconds timeout or -1 for infinite
1014 * @returns numbers of fds with revents, or <0 on error
1017 _dbus_poll (DBusPollFD *fds,
1019 int timeout_milliseconds)
1021 #define USE_CHRIS_IMPL 0
1025 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1026 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1034 #define DBUS_STACK_WSAEVENTS 256
1035 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1036 WSAEVENT *pEvents = NULL;
1037 if (n_fds > DBUS_STACK_WSAEVENTS)
1038 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1040 pEvents = eventsOnStack;
1043 #ifdef DBUS_ENABLE_VERBOSE_MODE
1045 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1046 for (i = 0; i < n_fds; i++)
1048 DBusPollFD *fdp = &fds[i];
1051 if (fdp->events & _DBUS_POLLIN)
1052 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1054 if (fdp->events & _DBUS_POLLOUT)
1055 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1057 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1059 // FIXME: more robust code for long msg
1060 // create on heap when msg[] becomes too small
1061 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1063 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1067 msgp += sprintf (msgp, "\n");
1068 _dbus_verbose ("%s",msg);
1070 for (i = 0; i < n_fds; i++)
1072 DBusPollFD *fdp = &fds[i];
1074 long lNetworkEvents = FD_OOB;
1076 ev = WSACreateEvent();
1078 if (fdp->events & _DBUS_POLLIN)
1079 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1081 if (fdp->events & _DBUS_POLLOUT)
1082 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1084 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1090 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1092 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1094 DBUS_SOCKET_SET_ERRNO ();
1095 if (errno != WSAEWOULDBLOCK)
1096 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1099 else if (ready == WSA_WAIT_TIMEOUT)
1101 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1104 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1107 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1109 for (i = 0; i < n_fds; i++)
1111 DBusPollFD *fdp = &fds[i];
1112 WSANETWORKEVENTS ne;
1116 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1118 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1119 fdp->revents |= _DBUS_POLLIN;
1121 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1122 fdp->revents |= _DBUS_POLLOUT;
1124 if (ne.lNetworkEvents & (FD_OOB))
1125 fdp->revents |= _DBUS_POLLERR;
1127 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1128 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1130 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1131 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1133 if (ne.lNetworkEvents & (FD_OOB))
1134 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1136 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1138 if(ne.lNetworkEvents)
1141 WSAEventSelect(fdp->fd, pEvents[i], 0);
1144 msgp += sprintf (msgp, "\n");
1145 _dbus_verbose ("%s",msg);
1149 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1153 for(i = 0; i < n_fds; i++)
1155 WSACloseEvent(pEvents[i]);
1158 if (n_fds > DBUS_STACK_WSAEVENTS)
1163 #else /* USE_CHRIS_IMPL */
1165 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1166 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1169 fd_set read_set, write_set, err_set;
1175 FD_ZERO (&read_set);
1176 FD_ZERO (&write_set);
1180 #ifdef DBUS_ENABLE_VERBOSE_MODE
1182 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1183 for (i = 0; i < n_fds; i++)
1185 DBusPollFD *fdp = &fds[i];
1188 if (fdp->events & _DBUS_POLLIN)
1189 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1191 if (fdp->events & _DBUS_POLLOUT)
1192 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1194 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1196 // FIXME: more robust code for long msg
1197 // create on heap when msg[] becomes too small
1198 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1200 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1204 msgp += sprintf (msgp, "\n");
1205 _dbus_verbose ("%s",msg);
1207 for (i = 0; i < n_fds; i++)
1209 DBusPollFD *fdp = &fds[i];
1211 if (fdp->events & _DBUS_POLLIN)
1212 FD_SET (fdp->fd, &read_set);
1214 if (fdp->events & _DBUS_POLLOUT)
1215 FD_SET (fdp->fd, &write_set);
1217 FD_SET (fdp->fd, &err_set);
1219 max_fd = MAX (max_fd, fdp->fd);
1222 // Avoid random lockups with send(), for lack of a better solution so far
1223 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1224 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1226 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1228 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1230 DBUS_SOCKET_SET_ERRNO ();
1231 if (errno != WSAEWOULDBLOCK)
1232 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1234 else if (ready == 0)
1235 _dbus_verbose ("select: = 0\n");
1239 #ifdef DBUS_ENABLE_VERBOSE_MODE
1241 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1243 for (i = 0; i < n_fds; i++)
1245 DBusPollFD *fdp = &fds[i];
1247 if (FD_ISSET (fdp->fd, &read_set))
1248 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1250 if (FD_ISSET (fdp->fd, &write_set))
1251 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1253 if (FD_ISSET (fdp->fd, &err_set))
1254 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1256 msgp += sprintf (msgp, "\n");
1257 _dbus_verbose ("%s",msg);
1260 for (i = 0; i < n_fds; i++)
1262 DBusPollFD *fdp = &fds[i];
1266 if (FD_ISSET (fdp->fd, &read_set))
1267 fdp->revents |= _DBUS_POLLIN;
1269 if (FD_ISSET (fdp->fd, &write_set))
1270 fdp->revents |= _DBUS_POLLOUT;
1272 if (FD_ISSET (fdp->fd, &err_set))
1273 fdp->revents |= _DBUS_POLLERR;
1277 #endif /* USE_CHRIS_IMPL */
1283 /******************************************************************************
1285 Original CVS version of dbus-sysdeps.c
1287 ******************************************************************************/
1288 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1289 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1291 * Copyright (C) 2002, 2003 Red Hat, Inc.
1292 * Copyright (C) 2003 CodeFactory AB
1293 * Copyright (C) 2005 Novell, Inc.
1295 * Licensed under the Academic Free License version 2.1
1297 * This program is free software; you can redistribute it and/or modify
1298 * it under the terms of the GNU General Public License as published by
1299 * the Free Software Foundation; either version 2 of the License, or
1300 * (at your option) any later version.
1302 * This program is distributed in the hope that it will be useful,
1303 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1304 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1305 * GNU General Public License for more details.
1307 * You should have received a copy of the GNU General Public License
1308 * along with this program; if not, write to the Free Software
1309 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1315 * Exit the process, returning the given value.
1317 * @param code the exit code
1320 _dbus_exit (int code)
1326 * Creates a socket and connects to a socket at the given host
1327 * and port. The connection fd is returned, and is set up as
1330 * @param host the host name to connect to
1331 * @param port the port to connect to
1332 * @param family the address family to listen on, NULL for all
1333 * @param error return location for error code
1334 * @returns connection file descriptor or -1 on error
1337 _dbus_connect_tcp_socket (const char *host,
1342 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1346 _dbus_connect_tcp_socket_with_nonce (const char *host,
1349 const char *noncefile,
1353 struct addrinfo hints;
1354 struct addrinfo *ai, *tmp;
1356 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1358 _dbus_win_startup_winsock ();
1363 hints.ai_family = AF_UNSPEC;
1364 else if (!strcmp(family, "ipv4"))
1365 hints.ai_family = AF_INET;
1366 else if (!strcmp(family, "ipv6"))
1367 hints.ai_family = AF_INET6;
1370 dbus_set_error (error,
1371 DBUS_ERROR_INVALID_ARGS,
1372 "Unknown address family %s", family);
1375 hints.ai_protocol = IPPROTO_TCP;
1376 hints.ai_socktype = SOCK_STREAM;
1377 #ifdef AI_ADDRCONFIG
1378 hints.ai_flags = AI_ADDRCONFIG;
1383 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1385 dbus_set_error (error,
1386 _dbus_error_from_errno (res),
1387 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1388 host, port, _dbus_strerror(res), res);
1395 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1397 DBUS_SOCKET_SET_ERRNO ();
1398 dbus_set_error (error,
1399 _dbus_error_from_errno (errno),
1400 "Failed to open socket: %s",
1401 _dbus_strerror_from_errno ());
1405 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1407 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1409 DBUS_SOCKET_SET_ERRNO ();
1422 dbus_set_error (error,
1423 _dbus_error_from_errno (errno),
1424 "Failed to connect to socket \"%s:%s\" %s",
1425 host, port, _dbus_strerror_from_errno ());
1429 if (noncefile != NULL)
1431 DBusString noncefileStr;
1433 if (!_dbus_string_init (&noncefileStr) ||
1434 !_dbus_string_append(&noncefileStr, noncefile))
1437 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1441 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1443 _dbus_string_free (&noncefileStr);
1452 _dbus_fd_set_close_on_exec (fd);
1454 if (!_dbus_set_fd_nonblocking (fd, error))
1464 * Creates a socket and binds it to the given path, then listens on
1465 * the socket. The socket is set to be nonblocking. In case of port=0
1466 * a random free port is used and returned in the port parameter.
1467 * If inaddr_any is specified, the hostname is ignored.
1469 * @param host the host name to listen on
1470 * @param port the port to listen on, if zero a free port will be used
1471 * @param family the address family to listen on, NULL for all
1472 * @param retport string to return the actual port listened on
1473 * @param fds_p location to store returned file descriptors
1474 * @param error return location for errors
1475 * @returns the number of listening file descriptors or -1 on error
1479 _dbus_listen_tcp_socket (const char *host,
1482 DBusString *retport,
1486 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1487 struct addrinfo hints;
1488 struct addrinfo *ai, *tmp;
1490 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1491 //That's required for family == IPv6(which is the default on Vista if family is not given)
1492 //So we use our own union instead of sockaddr_gen:
1495 struct sockaddr Address;
1496 struct sockaddr_in AddressIn;
1497 struct sockaddr_in6 AddressIn6;
1501 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1503 _dbus_win_startup_winsock ();
1508 hints.ai_family = AF_UNSPEC;
1509 else if (!strcmp(family, "ipv4"))
1510 hints.ai_family = AF_INET;
1511 else if (!strcmp(family, "ipv6"))
1512 hints.ai_family = AF_INET6;
1515 dbus_set_error (error,
1516 DBUS_ERROR_INVALID_ARGS,
1517 "Unknown address family %s", family);
1521 hints.ai_protocol = IPPROTO_TCP;
1522 hints.ai_socktype = SOCK_STREAM;
1523 #ifdef AI_ADDRCONFIG
1524 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1526 hints.ai_flags = AI_PASSIVE;
1529 redo_lookup_with_port:
1530 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1532 dbus_set_error (error,
1533 _dbus_error_from_errno (res),
1534 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1535 host ? host : "*", port, _dbus_strerror(res), res);
1542 int fd = -1, *newlisten_fd;
1543 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1545 DBUS_SOCKET_SET_ERRNO ();
1546 dbus_set_error (error,
1547 _dbus_error_from_errno (errno),
1548 "Failed to open socket: %s",
1549 _dbus_strerror_from_errno ());
1552 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1554 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1556 DBUS_SOCKET_SET_ERRNO ();
1557 dbus_set_error (error, _dbus_error_from_errno (errno),
1558 "Failed to bind socket \"%s:%s\": %s",
1559 host ? host : "*", port, _dbus_strerror_from_errno ());
1564 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1566 DBUS_SOCKET_SET_ERRNO ();
1567 dbus_set_error (error, _dbus_error_from_errno (errno),
1568 "Failed to listen on socket \"%s:%s\": %s",
1569 host ? host : "*", port, _dbus_strerror_from_errno ());
1574 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1578 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1579 "Failed to allocate file handle array");
1582 listen_fd = newlisten_fd;
1583 listen_fd[nlisten_fd] = fd;
1586 if (!_dbus_string_get_length(retport))
1588 /* If the user didn't specify a port, or used 0, then
1589 the kernel chooses a port. After the first address
1590 is bound to, we need to force all remaining addresses
1591 to use the same port */
1592 if (!port || !strcmp(port, "0"))
1594 mysockaddr_gen addr;
1595 socklen_t addrlen = sizeof(addr);
1598 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1600 DBUS_SOCKET_SET_ERRNO ();
1601 dbus_set_error (error, _dbus_error_from_errno (errno),
1602 "Failed to resolve port \"%s:%s\": %s",
1603 host ? host : "*", port, _dbus_strerror_from_errno());
1606 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1607 if (!_dbus_string_append(retport, portbuf))
1609 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1613 /* Release current address list & redo lookup */
1614 port = _dbus_string_get_const_data(retport);
1616 goto redo_lookup_with_port;
1620 if (!_dbus_string_append(retport, port))
1622 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1635 _dbus_win_set_errno (WSAEADDRINUSE);
1636 dbus_set_error (error, _dbus_error_from_errno (errno),
1637 "Failed to bind socket \"%s:%s\": %s",
1638 host ? host : "*", port, _dbus_strerror_from_errno ());
1642 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1644 for (i = 0 ; i < nlisten_fd ; i++)
1646 _dbus_fd_set_close_on_exec (listen_fd[i]);
1647 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1660 for (i = 0 ; i < nlisten_fd ; i++)
1661 closesocket (listen_fd[i]);
1662 dbus_free(listen_fd);
1668 * Accepts a connection on a listening socket.
1669 * Handles EINTR for you.
1671 * @param listen_fd the listen file descriptor
1672 * @returns the connection fd of the client, or -1 on error
1675 _dbus_accept (int listen_fd)
1680 client_fd = accept (listen_fd, NULL, NULL);
1682 if (DBUS_SOCKET_IS_INVALID (client_fd))
1684 DBUS_SOCKET_SET_ERRNO ();
1689 _dbus_verbose ("client fd %d accepted\n", client_fd);
1698 _dbus_send_credentials_socket (int handle,
1701 /* FIXME: for the session bus credentials shouldn't matter (?), but
1702 * for the system bus they are presumably essential. A rough outline
1703 * of a way to implement the credential transfer would be this:
1705 * client waits to *read* a byte.
1707 * server creates a named pipe with a random name, sends a byte
1708 * contining its length, and its name.
1710 * client reads the name, connects to it (using Win32 API).
1712 * server waits for connection to the named pipe, then calls
1713 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1714 * calls RevertToSelf(), closes its handles to the named pipe, and
1715 * is done. (Maybe there is some other way to get the SID of a named
1716 * pipe client without having to use impersonation?)
1718 * client closes its handles and is done.
1720 * Ralf: Why not sending credentials over the given this connection ?
1721 * Using named pipes makes it impossible to be connected from a unix client.
1727 _dbus_string_init_const_len (&buf, "\0", 1);
1729 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1731 if (bytes_written < 0 && errno == EINTR)
1734 if (bytes_written < 0)
1736 dbus_set_error (error, _dbus_error_from_errno (errno),
1737 "Failed to write credentials byte: %s",
1738 _dbus_strerror_from_errno ());
1741 else if (bytes_written == 0)
1743 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1744 "wrote zero bytes writing credentials byte");
1749 _dbus_assert (bytes_written == 1);
1750 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1757 * Reads a single byte which must be nul (an error occurs otherwise),
1758 * and reads unix credentials if available. Fills in pid/uid/gid with
1759 * -1 if no credentials are available. Return value indicates whether
1760 * a byte was read, not whether we got valid credentials. On some
1761 * systems, such as Linux, reading/writing the byte isn't actually
1762 * required, but we do it anyway just to avoid multiple codepaths.
1764 * Fails if no byte is available, so you must select() first.
1766 * The point of the byte is that on some systems we have to
1767 * use sendmsg()/recvmsg() to transmit credentials.
1769 * @param client_fd the client file descriptor
1770 * @param credentials struct to fill with credentials of client
1771 * @param error location to store error code
1772 * @returns #TRUE on success
1775 _dbus_read_credentials_socket (int handle,
1776 DBusCredentials *credentials,
1786 // could fail due too OOM
1787 if (_dbus_string_init (&buf))
1789 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1792 _dbus_verbose ("got one zero byte from server\n");
1794 _dbus_string_free (&buf);
1797 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1801 _dbus_credentials_add_pid (credentials, pid);
1803 if (_dbus_getsid (&sid, pid))
1805 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1819 * Checks to make sure the given directory is
1820 * private to the user
1822 * @param dir the name of the directory
1823 * @param error error return
1824 * @returns #FALSE on failure
1827 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1830 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1836 * Appends the given filename to the given directory.
1838 * @todo it might be cute to collapse multiple '/' such as "foo//"
1841 * @param dir the directory name
1842 * @param next_component the filename
1843 * @returns #TRUE on success
1846 _dbus_concat_dir_and_file (DBusString *dir,
1847 const DBusString *next_component)
1849 dbus_bool_t dir_ends_in_slash;
1850 dbus_bool_t file_starts_with_slash;
1852 if (_dbus_string_get_length (dir) == 0 ||
1853 _dbus_string_get_length (next_component) == 0)
1857 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1858 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1860 file_starts_with_slash =
1861 ('/' == _dbus_string_get_byte (next_component, 0) ||
1862 '\\' == _dbus_string_get_byte (next_component, 0));
1864 if (dir_ends_in_slash && file_starts_with_slash)
1866 _dbus_string_shorten (dir, 1);
1868 else if (!(dir_ends_in_slash || file_starts_with_slash))
1870 if (!_dbus_string_append_byte (dir, '\\'))
1874 return _dbus_string_copy (next_component, 0, dir,
1875 _dbus_string_get_length (dir));
1878 /*---------------- DBusCredentials ----------------------------------*/
1881 * Adds the credentials corresponding to the given username.
1883 * @param credentials credentials to fill in
1884 * @param username the username
1885 * @returns #TRUE if the username existed and we got some credentials
1888 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1889 const DBusString *username)
1891 return _dbus_credentials_add_windows_sid (credentials,
1892 _dbus_string_get_const_data(username));
1896 * Adds the credentials of the current process to the
1897 * passed-in credentials object.
1899 * @param credentials credentials to add to
1900 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1904 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1906 dbus_bool_t retval = FALSE;
1909 if (!_dbus_getsid(&sid, _dbus_getpid()))
1912 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
1915 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1930 * Append to the string the identity we would like to have when we
1931 * authenticate, on UNIX this is the current process UID and on
1932 * Windows something else, probably a Windows SID string. No escaping
1933 * is required, that is done in dbus-auth.c. The username here
1934 * need not be anything human-readable, it can be the machine-readable
1935 * form i.e. a user id.
1937 * @param str the string to append to
1938 * @returns #FALSE on no memory
1939 * @todo to which class belongs this
1942 _dbus_append_user_from_current_process (DBusString *str)
1944 dbus_bool_t retval = FALSE;
1947 if (!_dbus_getsid(&sid, _dbus_getpid()))
1950 retval = _dbus_string_append (str,sid);
1957 * Gets our process ID
1958 * @returns process ID
1963 return GetCurrentProcessId ();
1966 /** nanoseconds in a second */
1967 #define NANOSECONDS_PER_SECOND 1000000000
1968 /** microseconds in a second */
1969 #define MICROSECONDS_PER_SECOND 1000000
1970 /** milliseconds in a second */
1971 #define MILLISECONDS_PER_SECOND 1000
1972 /** nanoseconds in a millisecond */
1973 #define NANOSECONDS_PER_MILLISECOND 1000000
1974 /** microseconds in a millisecond */
1975 #define MICROSECONDS_PER_MILLISECOND 1000
1978 * Sleeps the given number of milliseconds.
1979 * @param milliseconds number of milliseconds
1982 _dbus_sleep_milliseconds (int milliseconds)
1984 Sleep (milliseconds);
1989 * Get current time, as in gettimeofday(). Never uses the monotonic
1992 * @param tv_sec return location for number of seconds
1993 * @param tv_usec return location for number of microseconds
1996 _dbus_get_real_time (long *tv_sec,
2000 dbus_uint64_t time64;
2002 GetSystemTimeAsFileTime (&ft);
2004 memcpy (&time64, &ft, sizeof (time64));
2006 /* Convert from 100s of nanoseconds since 1601-01-01
2007 * to Unix epoch. Yes, this is Y2038 unsafe.
2009 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2013 *tv_sec = time64 / 1000000;
2016 *tv_usec = time64 % 1000000;
2020 * Get current time, as in gettimeofday(). Use the monotonic clock if
2021 * available, to avoid problems when the system time changes.
2023 * @param tv_sec return location for number of seconds
2024 * @param tv_usec return location for number of microseconds
2027 _dbus_get_monotonic_time (long *tv_sec,
2030 /* no implementation yet, fall back to wall-clock time */
2031 _dbus_get_real_time (tv_sec, tv_usec);
2035 * signal (SIGPIPE, SIG_IGN);
2038 _dbus_disable_sigpipe (void)
2043 * Creates a directory; succeeds if the directory
2044 * is created or already existed.
2046 * @param filename directory filename
2047 * @param error initialized error object
2048 * @returns #TRUE on success
2051 _dbus_create_directory (const DBusString *filename,
2054 const char *filename_c;
2056 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2058 filename_c = _dbus_string_get_const_data (filename);
2060 if (!CreateDirectoryA (filename_c, NULL))
2062 if (GetLastError () == ERROR_ALREADY_EXISTS)
2065 dbus_set_error (error, DBUS_ERROR_FAILED,
2066 "Failed to create directory %s: %s\n",
2067 filename_c, _dbus_strerror_from_errno ());
2076 * Generates the given number of random bytes,
2077 * using the best mechanism we can come up with.
2079 * @param str the string
2080 * @param n_bytes the number of random bytes to append to string
2081 * @returns #TRUE on success, #FALSE if no memory
2084 _dbus_generate_random_bytes (DBusString *str,
2091 old_len = _dbus_string_get_length (str);
2093 if (!_dbus_string_lengthen (str, n_bytes))
2096 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2098 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2101 if (!CryptGenRandom (hprov, n_bytes, p))
2103 CryptReleaseContext (hprov, 0);
2107 CryptReleaseContext (hprov, 0);
2113 * Gets the temporary files directory by inspecting the environment variables
2114 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2116 * @returns location of temp directory
2119 _dbus_get_tmpdir(void)
2121 static const char* tmpdir = NULL;
2122 static char buf[1000];
2128 if (!GetTempPathA (sizeof (buf), buf))
2130 _dbus_warn ("GetTempPath failed\n");
2134 /* Drop terminating backslash or slash */
2135 last_slash = _mbsrchr (buf, '\\');
2136 if (last_slash > buf && last_slash[1] == '\0')
2137 last_slash[0] = '\0';
2138 last_slash = _mbsrchr (buf, '/');
2139 if (last_slash > buf && last_slash[1] == '\0')
2140 last_slash[0] = '\0';
2145 _dbus_assert(tmpdir != NULL);
2152 * Deletes the given file.
2154 * @param filename the filename
2155 * @param error error location
2157 * @returns #TRUE if unlink() succeeded
2160 _dbus_delete_file (const DBusString *filename,
2163 const char *filename_c;
2165 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2167 filename_c = _dbus_string_get_const_data (filename);
2169 if (DeleteFileA (filename_c) == 0)
2171 dbus_set_error (error, DBUS_ERROR_FAILED,
2172 "Failed to delete file %s: %s\n",
2173 filename_c, _dbus_strerror_from_errno ());
2181 * replaces the term DBUS_PREFIX in configure_time_path by the
2182 * current dbus installation directory. On unix this function is a noop
2184 * @param configure_time_path
2188 _dbus_replace_install_prefix (const char *configure_time_path)
2191 return configure_time_path;
2193 static char retval[1000];
2194 static char runtime_prefix[1000];
2198 if (!configure_time_path)
2201 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2202 strncmp (configure_time_path, DBUS_PREFIX "/",
2203 strlen (DBUS_PREFIX) + 1))) {
2204 strcat (retval, configure_time_path);
2208 strcpy (retval, runtime_prefix);
2209 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2211 /* Somehow, in some situations, backslashes get collapsed in the string.
2212 * Since windows C library accepts both forward and backslashes as
2213 * path separators, convert all backslashes to forward slashes.
2216 for(i = 0; retval[i] != '\0'; i++) {
2217 if(retval[i] == '\\')
2224 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2226 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2236 * Backtrace Generator
2238 * Copyright 2004 Eric Poech
2239 * Copyright 2004 Robert Shearman
2241 * This library is free software; you can redistribute it and/or
2242 * modify it under the terms of the GNU Lesser General Public
2243 * License as published by the Free Software Foundation; either
2244 * version 2.1 of the License, or (at your option) any later version.
2246 * This library is distributed in the hope that it will be useful,
2247 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2248 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2249 * Lesser General Public License for more details.
2251 * You should have received a copy of the GNU Lesser General Public
2252 * License along with this library; if not, write to the Free Software
2253 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2257 #include <imagehlp.h>
2260 #define DPRINTF _dbus_warn
2268 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2270 //MAKE_FUNCPTR(StackWalk);
2271 //MAKE_FUNCPTR(SymGetModuleBase);
2272 //MAKE_FUNCPTR(SymFunctionTableAccess);
2273 //MAKE_FUNCPTR(SymInitialize);
2274 //MAKE_FUNCPTR(SymGetSymFromAddr);
2275 //MAKE_FUNCPTR(SymGetModuleInfo);
2276 static BOOL (WINAPI *pStackWalk)(
2280 LPSTACKFRAME StackFrame,
2281 PVOID ContextRecord,
2282 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2283 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2284 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2285 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2288 static DWORD64 (WINAPI *pSymGetModuleBase)(
2292 static PVOID (WINAPI *pSymFunctionTableAccess)(
2297 static DWORD (WINAPI *pSymGetModuleBase)(
2301 static PVOID (WINAPI *pSymFunctionTableAccess)(
2306 static BOOL (WINAPI *pSymInitialize)(
2308 PSTR UserSearchPath,
2311 static BOOL (WINAPI *pSymGetSymFromAddr)(
2314 PDWORD Displacement,
2315 PIMAGEHLP_SYMBOL Symbol
2317 static BOOL (WINAPI *pSymGetModuleInfo)(
2320 PIMAGEHLP_MODULE ModuleInfo
2322 static DWORD (WINAPI *pSymSetOptions)(
2327 static BOOL init_backtrace()
2329 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2331 #define GETFUNC(x) \
2332 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2340 // GETFUNC(StackWalk);
2341 // GETFUNC(SymGetModuleBase);
2342 // GETFUNC(SymFunctionTableAccess);
2343 // GETFUNC(SymInitialize);
2344 // GETFUNC(SymGetSymFromAddr);
2345 // GETFUNC(SymGetModuleInfo);
2349 pStackWalk = (BOOL (WINAPI *)(
2353 LPSTACKFRAME StackFrame,
2354 PVOID ContextRecord,
2355 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2356 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2357 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2358 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2359 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2361 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2364 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2365 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2368 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2370 pSymGetModuleBase=(DWORD (WINAPI *)(
2373 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2374 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2377 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2379 pSymInitialize = (BOOL (WINAPI *)(
2381 PSTR UserSearchPath,
2383 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2384 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2387 PDWORD Displacement,
2388 PIMAGEHLP_SYMBOL Symbol
2389 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2390 pSymGetModuleInfo = (BOOL (WINAPI *)(
2393 PIMAGEHLP_MODULE ModuleInfo
2394 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2395 pSymSetOptions = (DWORD (WINAPI *)(
2397 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2400 pSymSetOptions(SYMOPT_UNDNAME);
2402 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2407 static void dump_backtrace_for_thread(HANDLE hThread)
2414 if (!init_backtrace())
2417 /* can't use this function for current thread as GetThreadContext
2418 * doesn't support getting context from current thread */
2419 if (hThread == GetCurrentThread())
2422 DPRINTF("Backtrace:\n");
2424 _DBUS_ZERO(context);
2425 context.ContextFlags = CONTEXT_FULL;
2427 SuspendThread(hThread);
2429 if (!GetThreadContext(hThread, &context))
2431 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2432 ResumeThread(hThread);
2439 sf.AddrFrame.Offset = context.Ebp;
2440 sf.AddrFrame.Mode = AddrModeFlat;
2441 sf.AddrPC.Offset = context.Eip;
2442 sf.AddrPC.Mode = AddrModeFlat;
2443 dwImageType = IMAGE_FILE_MACHINE_I386;
2445 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2446 sf.AddrPC.Offset = context.Rip;
2447 sf.AddrPC.Mode = AddrModeFlat;
2448 sf.AddrFrame.Offset = context.Rsp;
2449 sf.AddrFrame.Mode = AddrModeFlat;
2450 sf.AddrStack.Offset = context.Rsp;
2451 sf.AddrStack.Mode = AddrModeFlat;
2453 dwImageType = IMAGE_FILE_MACHINE_IA64;
2454 sf.AddrPC.Offset = context.StIIP;
2455 sf.AddrPC.Mode = AddrModeFlat;
2456 sf.AddrFrame.Offset = context.IntSp;
2457 sf.AddrFrame.Mode = AddrModeFlat;
2458 sf.AddrBStore.Offset= context.RsBSP;
2459 sf.AddrBStore.Mode = AddrModeFlat;
2460 sf.AddrStack.Offset = context.IntSp;
2461 sf.AddrStack.Mode = AddrModeFlat;
2463 # error You need to fill in the STACKFRAME structure for your architecture
2466 while (pStackWalk(dwImageType, GetCurrentProcess(),
2467 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2468 pSymGetModuleBase, NULL))
2471 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2472 DWORD dwDisplacement;
2474 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2475 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2477 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2478 &dwDisplacement, pSymbol))
2480 IMAGEHLP_MODULE ModuleInfo;
2481 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2483 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2485 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2487 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2488 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2490 else if (dwDisplacement)
2491 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2493 DPRINTF("4\t%s\n", pSymbol->Name);
2496 ResumeThread(hThread);
2499 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2501 dump_backtrace_for_thread((HANDLE)lpParameter);
2505 /* cannot get valid context from current thread, so we have to execute
2506 * backtrace from another thread */
2507 static void dump_backtrace()
2509 HANDLE hCurrentThread;
2512 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2513 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2514 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2516 WaitForSingleObject(hThread, INFINITE);
2517 CloseHandle(hThread);
2518 CloseHandle(hCurrentThread);
2521 #endif /* asserts or tests enabled */
2524 void _dbus_print_backtrace(void)
2530 void _dbus_print_backtrace(void)
2532 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2536 static dbus_uint32_t fromAscii(char ascii)
2538 if(ascii >= '0' && ascii <= '9')
2540 if(ascii >= 'A' && ascii <= 'F')
2541 return ascii - 'A' + 10;
2542 if(ascii >= 'a' && ascii <= 'f')
2543 return ascii - 'a' + 10;
2547 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2548 dbus_bool_t create_if_not_found,
2555 HW_PROFILE_INFOA info;
2556 char *lpc = &info.szHwProfileGuid[0];
2559 // the hw-profile guid lives long enough
2560 if(!GetCurrentHwProfileA(&info))
2562 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2566 // Form: {12340001-4980-1920-6788-123456789012}
2569 u = ((fromAscii(lpc[0]) << 0) |
2570 (fromAscii(lpc[1]) << 4) |
2571 (fromAscii(lpc[2]) << 8) |
2572 (fromAscii(lpc[3]) << 12) |
2573 (fromAscii(lpc[4]) << 16) |
2574 (fromAscii(lpc[5]) << 20) |
2575 (fromAscii(lpc[6]) << 24) |
2576 (fromAscii(lpc[7]) << 28));
2577 machine_id->as_uint32s[0] = u;
2581 u = ((fromAscii(lpc[0]) << 0) |
2582 (fromAscii(lpc[1]) << 4) |
2583 (fromAscii(lpc[2]) << 8) |
2584 (fromAscii(lpc[3]) << 12) |
2585 (fromAscii(lpc[5]) << 16) |
2586 (fromAscii(lpc[6]) << 20) |
2587 (fromAscii(lpc[7]) << 24) |
2588 (fromAscii(lpc[8]) << 28));
2589 machine_id->as_uint32s[1] = u;
2593 u = ((fromAscii(lpc[0]) << 0) |
2594 (fromAscii(lpc[1]) << 4) |
2595 (fromAscii(lpc[2]) << 8) |
2596 (fromAscii(lpc[3]) << 12) |
2597 (fromAscii(lpc[5]) << 16) |
2598 (fromAscii(lpc[6]) << 20) |
2599 (fromAscii(lpc[7]) << 24) |
2600 (fromAscii(lpc[8]) << 28));
2601 machine_id->as_uint32s[2] = u;
2605 u = ((fromAscii(lpc[0]) << 0) |
2606 (fromAscii(lpc[1]) << 4) |
2607 (fromAscii(lpc[2]) << 8) |
2608 (fromAscii(lpc[3]) << 12) |
2609 (fromAscii(lpc[4]) << 16) |
2610 (fromAscii(lpc[5]) << 20) |
2611 (fromAscii(lpc[6]) << 24) |
2612 (fromAscii(lpc[7]) << 28));
2613 machine_id->as_uint32s[3] = u;
2619 HANDLE _dbus_global_lock (const char *mutexname)
2624 mutex = CreateMutexA( NULL, FALSE, mutexname );
2630 gotMutex = WaitForSingleObject( mutex, INFINITE );
2633 case WAIT_ABANDONED:
2634 ReleaseMutex (mutex);
2635 CloseHandle (mutex);
2646 void _dbus_global_unlock (HANDLE mutex)
2648 ReleaseMutex (mutex);
2649 CloseHandle (mutex);
2652 // for proper cleanup in dbus-daemon
2653 static HANDLE hDBusDaemonMutex = NULL;
2654 static HANDLE hDBusSharedMem = NULL;
2655 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2656 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2657 // sync _dbus_get_autolaunch_address
2658 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2659 // mutex to determine if dbus-daemon is already started (per user)
2660 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2661 // named shm for dbus adress info (per user)
2662 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2665 _dbus_get_install_root_as_hash(DBusString *out)
2667 DBusString install_path;
2669 char path[MAX_PATH*2];
2670 int path_size = sizeof(path);
2672 if (!_dbus_get_install_root(path,path_size))
2675 _dbus_string_init(&install_path);
2676 _dbus_string_append(&install_path,path);
2678 _dbus_string_init(out);
2679 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2681 if (!_dbus_sha_compute (&install_path, out))
2688 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2690 _dbus_string_init(out);
2691 _dbus_string_append(out,basestring);
2697 else if (strcmp(scope,"*install-path") == 0
2698 // for 1.3 compatibility
2699 || strcmp(scope,"install-path") == 0)
2702 if (!_dbus_get_install_root_as_hash(&temp))
2704 _dbus_string_free(out);
2707 _dbus_string_append(out,"-");
2708 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2709 _dbus_string_free(&temp);
2711 else if (strcmp(scope,"*user") == 0)
2713 _dbus_string_append(out,"-");
2714 if (!_dbus_append_user_from_current_process(out))
2716 _dbus_string_free(out);
2720 else if (strlen(scope) > 0)
2722 _dbus_string_append(out,"-");
2723 _dbus_string_append(out,scope);
2730 _dbus_get_shm_name (DBusString *out,const char *scope)
2732 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2736 _dbus_get_mutex_name (DBusString *out,const char *scope)
2738 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2742 _dbus_daemon_is_session_bus_address_published (const char *scope)
2745 DBusString mutex_name;
2747 if (!_dbus_get_mutex_name(&mutex_name,scope))
2749 _dbus_string_free( &mutex_name );
2753 if (hDBusDaemonMutex)
2756 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2757 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2759 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2760 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2761 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2763 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2764 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2767 _dbus_global_unlock( lock );
2769 _dbus_string_free( &mutex_name );
2771 if (hDBusDaemonMutex == NULL)
2773 if (GetLastError() == ERROR_ALREADY_EXISTS)
2775 CloseHandle(hDBusDaemonMutex);
2776 hDBusDaemonMutex = NULL;
2779 // mutex wasn't created before, so return false.
2780 // We leave the mutex name allocated for later reusage
2781 // in _dbus_daemon_publish_session_bus_address.
2786 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2789 char *shared_addr = NULL;
2790 DBusString shm_name;
2791 DBusString mutex_name;
2793 _dbus_assert (address);
2795 if (!_dbus_get_mutex_name(&mutex_name,scope))
2797 _dbus_string_free( &mutex_name );
2801 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2802 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2804 if (!hDBusDaemonMutex)
2806 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2808 _dbus_string_free( &mutex_name );
2810 // acquire the mutex
2811 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2813 _dbus_global_unlock( lock );
2814 CloseHandle( hDBusDaemonMutex );
2818 if (!_dbus_get_shm_name(&shm_name,scope))
2820 _dbus_string_free( &shm_name );
2821 _dbus_global_unlock( lock );
2826 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2827 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2828 _dbus_assert( hDBusSharedMem );
2830 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2832 _dbus_assert (shared_addr);
2834 strcpy( shared_addr, address);
2837 UnmapViewOfFile( shared_addr );
2839 _dbus_global_unlock( lock );
2840 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2842 _dbus_string_free( &shm_name );
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, DBusString *shm_name)
2876 // we know that dbus-daemon is available, so we wait until shm is available
2877 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
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, DBusString *shm_name, const char *scope)
2909 DBusString mutex_name;
2910 dbus_bool_t bRet = TRUE;
2912 if (!_dbus_get_mutex_name(&mutex_name,scope))
2914 _dbus_string_free( &mutex_name );
2918 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2919 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2922 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2923 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2925 ReleaseMutex (daemon);
2926 CloseHandle (daemon);
2928 _dbus_global_unlock( lock );
2929 _dbus_string_free( &mutex_name );
2934 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2937 CloseHandle ( daemon );
2939 _dbus_global_unlock( lock );
2940 _dbus_string_free( &mutex_name );
2946 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2951 PROCESS_INFORMATION pi;
2952 dbus_bool_t retval = FALSE;
2954 char dbus_exe_path[MAX_PATH];
2955 char dbus_args[MAX_PATH * 2];
2956 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2957 DBusString shm_name;
2959 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2961 if (!_dbus_get_shm_name(&shm_name,scope))
2963 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2967 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2969 if (_dbus_daemon_already_runs(address,&shm_name,scope))
2971 _dbus_verbose( "found running dbus daemon at %s\n",
2972 _dbus_string_get_const_data (&shm_name) );
2977 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2979 // Look in directory containing dbus shared library
2981 char dbus_module_path[MAX_PATH];
2984 _dbus_verbose( "did not found dbus daemon executable on default search path, "
2985 "trying path where dbus shared library is located");
2987 hmod = _dbus_win_get_dll_hmodule();
2988 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
2991 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
2997 char *ext_idx = strrchr(dbus_module_path, '\\');
3000 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3002 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3004 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3005 printf ("or start the daemon manually\n\n");
3008 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3014 ZeroMemory( &si, sizeof(si) );
3016 ZeroMemory( &pi, sizeof(pi) );
3018 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3020 // argv[i] = "--config-file=bus\\session.conf";
3021 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3022 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3024 CloseHandle (pi.hThread);
3025 CloseHandle (pi.hProcess);
3026 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3027 if (retval == FALSE)
3028 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3032 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3038 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3040 _DBUS_ASSERT_ERROR_IS_SET (error);
3042 _dbus_global_unlock (mutex);
3048 /** Makes the file readable by every user in the system.
3050 * @param filename the filename
3051 * @param error error location
3052 * @returns #TRUE if the file's permissions could be changed.
3055 _dbus_make_file_world_readable(const DBusString *filename,
3063 * return the relocated DATADIR
3065 * @returns relocated DATADIR static string
3069 _dbus_windows_get_datadir (void)
3071 return _dbus_replace_install_prefix(DBUS_DATADIR);
3075 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3078 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3079 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3082 * Returns the standard directories for a session bus to look for service
3085 * On Windows this should be data directories:
3087 * %CommonProgramFiles%/dbus
3091 * relocated DBUS_DATADIR
3093 * @param dirs the directory list we are returning
3094 * @returns #FALSE on OOM
3098 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3100 const char *common_progs;
3101 DBusString servicedir_path;
3103 if (!_dbus_string_init (&servicedir_path))
3108 /* On Windows CE, we adjust datadir dynamically to installation location. */
3109 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3111 if (data_dir != NULL)
3113 if (!_dbus_string_append (&servicedir_path, data_dir))
3116 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3122 the code for accessing services requires absolute base pathes
3123 in case DBUS_DATADIR is relative make it absolute
3129 _dbus_string_init_const (&p, DBUS_DATADIR);
3131 if (!_dbus_path_is_absolute (&p))
3133 char install_root[1000];
3134 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3135 if (!_dbus_string_append (&servicedir_path, install_root))
3140 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3143 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3147 common_progs = _dbus_getenv ("CommonProgramFiles");
3149 if (common_progs != NULL)
3151 if (!_dbus_string_append (&servicedir_path, common_progs))
3154 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3158 if (!_dbus_split_paths_and_append (&servicedir_path,
3159 DBUS_STANDARD_SESSION_SERVICEDIR,
3163 _dbus_string_free (&servicedir_path);
3167 _dbus_string_free (&servicedir_path);
3172 * Returns the standard directories for a system bus to look for service
3175 * On UNIX this should be the standard xdg freedesktop.org data directories:
3177 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3183 * On Windows there is no system bus and this function can return nothing.
3185 * @param dirs the directory list we are returning
3186 * @returns #FALSE on OOM
3190 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3197 * Atomically increments an integer
3199 * @param atomic pointer to the integer to increment
3200 * @returns the value before incrementing
3204 _dbus_atomic_inc (DBusAtomic *atomic)
3206 // +/- 1 is needed here!
3207 // no volatile argument with mingw
3208 return InterlockedIncrement (&atomic->value) - 1;
3212 * Atomically decrement an integer
3214 * @param atomic pointer to the integer to decrement
3215 * @returns the value before decrementing
3219 _dbus_atomic_dec (DBusAtomic *atomic)
3221 // +/- 1 is needed here!
3222 // no volatile argument with mingw
3223 return InterlockedDecrement (&atomic->value) + 1;
3227 * Atomically get the value of an integer. It may change at any time
3228 * thereafter, so this is mostly only useful for assertions.
3230 * @param atomic pointer to the integer to get
3231 * @returns the value at this moment
3234 _dbus_atomic_get (DBusAtomic *atomic)
3236 /* In this situation, GLib issues a MemoryBarrier() and then returns
3237 * atomic->value. However, mingw from mingw.org (not to be confused with
3238 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3239 * headers, so we have to get a memory barrier some other way.
3241 * InterlockedIncrement is older, and is documented on MSDN to be a full
3242 * memory barrier, so let's use that.
3246 InterlockedExchange (&dummy, 1);
3248 return atomic->value;
3252 * Called when the bus daemon is signaled to reload its configuration; any
3253 * caches should be nuked. Of course any caches that need explicit reload
3254 * are probably broken, but c'est la vie.
3259 _dbus_flush_caches (void)
3264 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3265 * for Winsock so is abstracted)
3267 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3270 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3272 return errno == WSAEWOULDBLOCK;
3276 * return the absolute path of the dbus installation
3278 * @param s buffer for installation path
3279 * @param len length of buffer
3280 * @returns #FALSE on failure
3283 _dbus_get_install_root(char *prefix, int len)
3285 //To find the prefix, we cut the filename and also \bin\ if present
3289 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3290 if ( pathLength == 0 || GetLastError() != 0 ) {
3294 lastSlash = _mbsrchr(prefix, '\\');
3295 if (lastSlash == NULL) {
3299 //cut off binary name
3302 //cut possible "\\bin"
3304 //this fails if we are in a double-byte system codepage and the
3305 //folder's name happens to end with the *bytes*
3306 //"\\bin"... (I.e. the second byte of some Han character and then
3307 //the Latin "bin", but that is not likely I think...
3308 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3310 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3312 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3319 find config file either from installation or build root according to
3320 the following path layout
3322 bin/dbus-daemon[d].exe
3323 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3324 (the former above is what dbus4win uses, the latter above is
3325 what a "normal" Unix-style "make install" uses)
3328 bin/dbus-daemon[d].exe
3329 bus/<config-file>.conf
3332 _dbus_get_config_file_name(DBusString *config_file, char *s)
3334 char path[MAX_PATH*2];
3335 int path_size = sizeof(path);
3337 if (!_dbus_get_install_root(path,path_size))
3340 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3342 strcat(path,"etc\\");
3344 if (_dbus_file_exists(path))
3346 // find path from executable
3347 if (!_dbus_string_append (config_file, path))
3352 if (!_dbus_get_install_root(path,path_size))
3354 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3356 strcat(path,"etc\\dbus-1\\");
3359 if (_dbus_file_exists(path))
3361 if (!_dbus_string_append (config_file, path))
3366 if (!_dbus_get_install_root(path,path_size))
3368 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3370 strcat(path,"bus\\");
3373 if (_dbus_file_exists(path))
3375 if (!_dbus_string_append (config_file, path))
3384 * Append the absolute path of the system.conf file
3385 * (there is no system bus on Windows so this can just
3386 * return FALSE and print a warning or something)
3388 * @param str the string to append to
3389 * @returns #FALSE if no memory
3392 _dbus_append_system_config_file (DBusString *str)
3394 return _dbus_get_config_file_name(str, "system.conf");
3398 * Append the absolute path of the session.conf file.
3400 * @param str the string to append to
3401 * @returns #FALSE if no memory
3404 _dbus_append_session_config_file (DBusString *str)
3406 return _dbus_get_config_file_name(str, "session.conf");
3409 /* See comment in dbus-sysdeps-unix.c */
3411 _dbus_lookup_session_address (dbus_bool_t *supported,
3412 DBusString *address,
3415 /* Probably fill this in with something based on COM? */
3421 * Appends the directory in which a keyring for the given credentials
3422 * should be stored. The credentials should have either a Windows or
3423 * UNIX user in them. The directory should be an absolute path.
3425 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3426 * be something else, since the dotfile convention is not normal on Windows.
3428 * @param directory string to append directory to
3429 * @param credentials credentials the directory should be for
3431 * @returns #FALSE on no memory
3434 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3435 DBusCredentials *credentials)
3439 const char *homepath;
3440 const char *homedrive;
3442 _dbus_assert (credentials != NULL);
3443 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3445 if (!_dbus_string_init (&homedir))
3448 homedrive = _dbus_getenv("HOMEDRIVE");
3449 if (homedrive != NULL && *homedrive != '\0')
3451 _dbus_string_append(&homedir,homedrive);
3454 homepath = _dbus_getenv("HOMEPATH");
3455 if (homepath != NULL && *homepath != '\0')
3457 _dbus_string_append(&homedir,homepath);
3460 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3462 const char *override;
3464 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3465 if (override != NULL && *override != '\0')
3467 _dbus_string_set_length (&homedir, 0);
3468 if (!_dbus_string_append (&homedir, override))
3471 _dbus_verbose ("Using fake homedir for testing: %s\n",
3472 _dbus_string_get_const_data (&homedir));
3476 static dbus_bool_t already_warned = FALSE;
3477 if (!already_warned)
3479 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3480 already_warned = TRUE;
3487 /* It's not possible to create a .something directory in Windows CE
3488 using the file explorer. */
3489 #define KEYRING_DIR "dbus-keyrings"
3491 #define KEYRING_DIR ".dbus-keyrings"
3494 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3495 if (!_dbus_concat_dir_and_file (&homedir,
3499 if (!_dbus_string_copy (&homedir, 0,
3500 directory, _dbus_string_get_length (directory))) {
3504 _dbus_string_free (&homedir);
3508 _dbus_string_free (&homedir);
3512 /** Checks if a file exists
3514 * @param file full path to the file
3515 * @returns #TRUE if file exists
3518 _dbus_file_exists (const char *file)
3520 DWORD attributes = GetFileAttributesA (file);
3522 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3529 * A wrapper around strerror() because some platforms
3530 * may be lame and not have strerror().
3532 * @param error_number errno.
3533 * @returns error description.
3536 _dbus_strerror (int error_number)
3544 switch (error_number)
3547 return "Interrupted function call";
3549 return "Permission denied";
3551 return "Bad address";
3553 return "Invalid argument";
3555 return "Too many open files";
3556 case WSAEWOULDBLOCK:
3557 return "Resource temporarily unavailable";
3558 case WSAEINPROGRESS:
3559 return "Operation now in progress";
3561 return "Operation already in progress";
3563 return "Socket operation on nonsocket";
3564 case WSAEDESTADDRREQ:
3565 return "Destination address required";
3567 return "Message too long";
3569 return "Protocol wrong type for socket";
3570 case WSAENOPROTOOPT:
3571 return "Bad protocol option";
3572 case WSAEPROTONOSUPPORT:
3573 return "Protocol not supported";
3574 case WSAESOCKTNOSUPPORT:
3575 return "Socket type not supported";
3577 return "Operation not supported";
3578 case WSAEPFNOSUPPORT:
3579 return "Protocol family not supported";
3580 case WSAEAFNOSUPPORT:
3581 return "Address family not supported by protocol family";
3583 return "Address already in use";
3584 case WSAEADDRNOTAVAIL:
3585 return "Cannot assign requested address";
3587 return "Network is down";
3588 case WSAENETUNREACH:
3589 return "Network is unreachable";
3591 return "Network dropped connection on reset";
3592 case WSAECONNABORTED:
3593 return "Software caused connection abort";
3595 return "Connection reset by peer";
3597 return "No buffer space available";
3599 return "Socket is already connected";
3601 return "Socket is not connected";
3603 return "Cannot send after socket shutdown";
3605 return "Connection timed out";
3606 case WSAECONNREFUSED:
3607 return "Connection refused";
3609 return "Host is down";
3610 case WSAEHOSTUNREACH:
3611 return "No route to host";
3613 return "Too many processes";
3615 return "Graceful shutdown in progress";
3616 case WSATYPE_NOT_FOUND:
3617 return "Class type not found";
3618 case WSAHOST_NOT_FOUND:
3619 return "Host not found";
3621 return "Nonauthoritative host not found";
3622 case WSANO_RECOVERY:
3623 return "This is a nonrecoverable error";
3625 return "Valid name, no data record of requested type";
3626 case WSA_INVALID_HANDLE:
3627 return "Specified event object handle is invalid";
3628 case WSA_INVALID_PARAMETER:
3629 return "One or more parameters are invalid";
3630 case WSA_IO_INCOMPLETE:
3631 return "Overlapped I/O event object not in signaled state";
3632 case WSA_IO_PENDING:
3633 return "Overlapped operations will complete later";
3634 case WSA_NOT_ENOUGH_MEMORY:
3635 return "Insufficient memory available";
3636 case WSA_OPERATION_ABORTED:
3637 return "Overlapped operation aborted";
3638 #ifdef WSAINVALIDPROCTABLE
3640 case WSAINVALIDPROCTABLE:
3641 return "Invalid procedure table from service provider";
3643 #ifdef WSAINVALIDPROVIDER
3645 case WSAINVALIDPROVIDER:
3646 return "Invalid service provider version number";
3648 #ifdef WSAPROVIDERFAILEDINIT
3650 case WSAPROVIDERFAILEDINIT:
3651 return "Unable to initialize a service provider";
3654 case WSASYSCALLFAILURE:
3655 return "System call failure";
3657 msg = strerror (error_number);
3666 * Assigns an error name and message corresponding to a Win32 error
3667 * code to a DBusError. Does nothing if error is #NULL.
3669 * @param error the error.
3670 * @param code the Win32 error code
3673 _dbus_win_set_error_from_win_error (DBusError *error,
3678 /* As we want the English message, use the A API */
3679 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3680 FORMAT_MESSAGE_IGNORE_INSERTS |
3681 FORMAT_MESSAGE_FROM_SYSTEM,
3682 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3683 (LPSTR) &msg, 0, NULL);
3688 msg_copy = dbus_malloc (strlen (msg));
3689 strcpy (msg_copy, msg);
3692 dbus_set_error (error, "win32.error", "%s", msg_copy);
3695 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3699 _dbus_win_warn_win_error (const char *message,
3704 dbus_error_init (&error);
3705 _dbus_win_set_error_from_win_error (&error, code);
3706 _dbus_warn ("%s: %s\n", message, error.message);
3707 dbus_error_free (&error);
3711 * Removes a directory; Directory must be empty
3713 * @param filename directory filename
3714 * @param error initialized error object
3715 * @returns #TRUE on success
3718 _dbus_delete_directory (const DBusString *filename,
3721 const char *filename_c;
3723 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3725 filename_c = _dbus_string_get_const_data (filename);
3727 if (RemoveDirectoryA (filename_c) == 0)
3729 char *emsg = _dbus_win_error_string (GetLastError ());
3730 dbus_set_error (error, _dbus_win_error_from_last_error (),
3731 "Failed to remove directory %s: %s",
3733 _dbus_win_free_error_string (emsg);
3741 * Checks whether the filename is an absolute path
3743 * @param filename the filename
3744 * @returns #TRUE if an absolute path
3747 _dbus_path_is_absolute (const DBusString *filename)
3749 if (_dbus_string_get_length (filename) > 0)
3750 return _dbus_string_get_byte (filename, 1) == ':'
3751 || _dbus_string_get_byte (filename, 0) == '\\'
3752 || _dbus_string_get_byte (filename, 0) == '/';
3758 _dbus_check_setuid (void)
3763 /** @} end of sysdeps-win */
3764 /* tests in dbus-sysdeps-util.c */