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 static BOOL is_winxp_sp3_or_lower()
838 OSVERSIONINFOEX osvi;
839 DWORDLONG dwlConditionMask = 0;
840 int op=VER_LESS_EQUAL;
842 // Initialize the OSVERSIONINFOEX structure.
844 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
845 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
846 osvi.dwMajorVersion = 5;
847 osvi.dwMinorVersion = 1;
848 osvi.wServicePackMajor = 3;
849 osvi.wServicePackMinor = 0;
851 // Initialize the condition mask.
853 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
854 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
855 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
856 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
860 return VerifyVersionInfo(
862 VER_MAJORVERSION | VER_MINORVERSION |
863 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
868 * @param sid points to sid buffer, need to be freed with LocalFree()
869 * @param process_id the process id for which the sid should be returned
870 * @returns process sid
873 _dbus_getsid(char **sid, dbus_pid_t process_id)
875 HANDLE process_token = INVALID_HANDLE_VALUE;
876 TOKEN_USER *token_user = NULL;
881 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
883 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
885 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
888 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
889 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
890 || (token_user = alloca (n)) == NULL
891 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
893 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
896 psid = token_user->User.Sid;
897 if (!IsValidSid (psid))
899 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
902 if (!ConvertSidToStringSidA (psid, sid))
904 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
911 CloseHandle (process_handle);
912 if (process_token != INVALID_HANDLE_VALUE)
913 CloseHandle (process_token);
915 _dbus_verbose("_dbus_getsid() returns %d\n",retval);
920 /************************************************************************
924 ************************************************************************/
927 * Creates a full-duplex pipe (as in socketpair()).
928 * Sets both ends of the pipe nonblocking.
930 * @param fd1 return location for one end
931 * @param fd2 return location for the other end
932 * @param blocking #TRUE if pipe should be blocking
933 * @param error error return
934 * @returns #FALSE on failure (if error is set)
937 _dbus_full_duplex_pipe (int *fd1,
939 dbus_bool_t blocking,
942 SOCKET temp, socket1 = -1, socket2 = -1;
943 struct sockaddr_in saddr;
947 _dbus_win_startup_winsock ();
949 temp = socket (AF_INET, SOCK_STREAM, 0);
950 if (temp == INVALID_SOCKET)
952 DBUS_SOCKET_SET_ERRNO ();
957 saddr.sin_family = AF_INET;
959 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
961 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
963 DBUS_SOCKET_SET_ERRNO ();
967 if (listen (temp, 1) == SOCKET_ERROR)
969 DBUS_SOCKET_SET_ERRNO ();
973 len = sizeof (saddr);
974 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
976 DBUS_SOCKET_SET_ERRNO ();
980 socket1 = socket (AF_INET, SOCK_STREAM, 0);
981 if (socket1 == INVALID_SOCKET)
983 DBUS_SOCKET_SET_ERRNO ();
987 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
989 DBUS_SOCKET_SET_ERRNO ();
993 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
994 if (socket2 == INVALID_SOCKET)
996 DBUS_SOCKET_SET_ERRNO ();
1003 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1005 DBUS_SOCKET_SET_ERRNO ();
1010 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1012 DBUS_SOCKET_SET_ERRNO ();
1020 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1021 *fd1, socket1, *fd2, socket2);
1028 closesocket (socket2);
1030 closesocket (socket1);
1034 dbus_set_error (error, _dbus_error_from_errno (errno),
1035 "Could not setup socket pair: %s",
1036 _dbus_strerror_from_errno ());
1042 * Wrapper for poll().
1044 * @param fds the file descriptors to poll
1045 * @param n_fds number of descriptors in the array
1046 * @param timeout_milliseconds timeout or -1 for infinite
1047 * @returns numbers of fds with revents, or <0 on error
1050 _dbus_poll (DBusPollFD *fds,
1052 int timeout_milliseconds)
1054 #define USE_CHRIS_IMPL 0
1058 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1059 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1067 #define DBUS_STACK_WSAEVENTS 256
1068 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1069 WSAEVENT *pEvents = NULL;
1070 if (n_fds > DBUS_STACK_WSAEVENTS)
1071 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1073 pEvents = eventsOnStack;
1076 #ifdef DBUS_ENABLE_VERBOSE_MODE
1078 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1079 for (i = 0; i < n_fds; i++)
1081 DBusPollFD *fdp = &fds[i];
1084 if (fdp->events & _DBUS_POLLIN)
1085 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1087 if (fdp->events & _DBUS_POLLOUT)
1088 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1090 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1092 // FIXME: more robust code for long msg
1093 // create on heap when msg[] becomes too small
1094 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1096 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1100 msgp += sprintf (msgp, "\n");
1101 _dbus_verbose ("%s",msg);
1103 for (i = 0; i < n_fds; i++)
1105 DBusPollFD *fdp = &fds[i];
1107 long lNetworkEvents = FD_OOB;
1109 ev = WSACreateEvent();
1111 if (fdp->events & _DBUS_POLLIN)
1112 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1114 if (fdp->events & _DBUS_POLLOUT)
1115 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1117 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1123 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1125 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1127 DBUS_SOCKET_SET_ERRNO ();
1128 if (errno != WSAEWOULDBLOCK)
1129 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1132 else if (ready == WSA_WAIT_TIMEOUT)
1134 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1137 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1140 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1142 for (i = 0; i < n_fds; i++)
1144 DBusPollFD *fdp = &fds[i];
1145 WSANETWORKEVENTS ne;
1149 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1151 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1152 fdp->revents |= _DBUS_POLLIN;
1154 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1155 fdp->revents |= _DBUS_POLLOUT;
1157 if (ne.lNetworkEvents & (FD_OOB))
1158 fdp->revents |= _DBUS_POLLERR;
1160 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1161 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1163 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1164 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1166 if (ne.lNetworkEvents & (FD_OOB))
1167 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1169 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1171 if(ne.lNetworkEvents)
1174 WSAEventSelect(fdp->fd, pEvents[i], 0);
1177 msgp += sprintf (msgp, "\n");
1178 _dbus_verbose ("%s",msg);
1182 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1186 for(i = 0; i < n_fds; i++)
1188 WSACloseEvent(pEvents[i]);
1191 if (n_fds > DBUS_STACK_WSAEVENTS)
1196 #else /* USE_CHRIS_IMPL */
1198 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1199 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1202 fd_set read_set, write_set, err_set;
1208 FD_ZERO (&read_set);
1209 FD_ZERO (&write_set);
1213 #ifdef DBUS_ENABLE_VERBOSE_MODE
1215 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1216 for (i = 0; i < n_fds; i++)
1218 DBusPollFD *fdp = &fds[i];
1221 if (fdp->events & _DBUS_POLLIN)
1222 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1224 if (fdp->events & _DBUS_POLLOUT)
1225 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1227 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1229 // FIXME: more robust code for long msg
1230 // create on heap when msg[] becomes too small
1231 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1233 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1237 msgp += sprintf (msgp, "\n");
1238 _dbus_verbose ("%s",msg);
1240 for (i = 0; i < n_fds; i++)
1242 DBusPollFD *fdp = &fds[i];
1244 if (fdp->events & _DBUS_POLLIN)
1245 FD_SET (fdp->fd, &read_set);
1247 if (fdp->events & _DBUS_POLLOUT)
1248 FD_SET (fdp->fd, &write_set);
1250 FD_SET (fdp->fd, &err_set);
1252 max_fd = MAX (max_fd, fdp->fd);
1255 // Avoid random lockups with send(), for lack of a better solution so far
1256 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1257 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1259 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1261 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1263 DBUS_SOCKET_SET_ERRNO ();
1264 if (errno != WSAEWOULDBLOCK)
1265 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1267 else if (ready == 0)
1268 _dbus_verbose ("select: = 0\n");
1272 #ifdef DBUS_ENABLE_VERBOSE_MODE
1274 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1276 for (i = 0; i < n_fds; i++)
1278 DBusPollFD *fdp = &fds[i];
1280 if (FD_ISSET (fdp->fd, &read_set))
1281 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1283 if (FD_ISSET (fdp->fd, &write_set))
1284 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1286 if (FD_ISSET (fdp->fd, &err_set))
1287 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1289 msgp += sprintf (msgp, "\n");
1290 _dbus_verbose ("%s",msg);
1293 for (i = 0; i < n_fds; i++)
1295 DBusPollFD *fdp = &fds[i];
1299 if (FD_ISSET (fdp->fd, &read_set))
1300 fdp->revents |= _DBUS_POLLIN;
1302 if (FD_ISSET (fdp->fd, &write_set))
1303 fdp->revents |= _DBUS_POLLOUT;
1305 if (FD_ISSET (fdp->fd, &err_set))
1306 fdp->revents |= _DBUS_POLLERR;
1310 #endif /* USE_CHRIS_IMPL */
1316 /******************************************************************************
1318 Original CVS version of dbus-sysdeps.c
1320 ******************************************************************************/
1321 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1322 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1324 * Copyright (C) 2002, 2003 Red Hat, Inc.
1325 * Copyright (C) 2003 CodeFactory AB
1326 * Copyright (C) 2005 Novell, Inc.
1328 * Licensed under the Academic Free License version 2.1
1330 * This program is free software; you can redistribute it and/or modify
1331 * it under the terms of the GNU General Public License as published by
1332 * the Free Software Foundation; either version 2 of the License, or
1333 * (at your option) any later version.
1335 * This program is distributed in the hope that it will be useful,
1336 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1337 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1338 * GNU General Public License for more details.
1340 * You should have received a copy of the GNU General Public License
1341 * along with this program; if not, write to the Free Software
1342 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1348 * Exit the process, returning the given value.
1350 * @param code the exit code
1353 _dbus_exit (int code)
1359 * Creates a socket and connects to a socket at the given host
1360 * and port. The connection fd is returned, and is set up as
1363 * @param host the host name to connect to
1364 * @param port the port to connect to
1365 * @param family the address family to listen on, NULL for all
1366 * @param error return location for error code
1367 * @returns connection file descriptor or -1 on error
1370 _dbus_connect_tcp_socket (const char *host,
1375 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1379 _dbus_connect_tcp_socket_with_nonce (const char *host,
1382 const char *noncefile,
1386 struct addrinfo hints;
1387 struct addrinfo *ai, *tmp;
1389 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1391 _dbus_win_startup_winsock ();
1396 hints.ai_family = AF_UNSPEC;
1397 else if (!strcmp(family, "ipv4"))
1398 hints.ai_family = AF_INET;
1399 else if (!strcmp(family, "ipv6"))
1400 hints.ai_family = AF_INET6;
1403 dbus_set_error (error,
1404 DBUS_ERROR_INVALID_ARGS,
1405 "Unknown address family %s", family);
1408 hints.ai_protocol = IPPROTO_TCP;
1409 hints.ai_socktype = SOCK_STREAM;
1410 #ifdef AI_ADDRCONFIG
1411 hints.ai_flags = AI_ADDRCONFIG;
1416 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1418 dbus_set_error (error,
1419 _dbus_error_from_errno (res),
1420 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1421 host, port, _dbus_strerror(res), res);
1428 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1430 DBUS_SOCKET_SET_ERRNO ();
1431 dbus_set_error (error,
1432 _dbus_error_from_errno (errno),
1433 "Failed to open socket: %s",
1434 _dbus_strerror_from_errno ());
1438 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1440 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1442 DBUS_SOCKET_SET_ERRNO ();
1455 dbus_set_error (error,
1456 _dbus_error_from_errno (errno),
1457 "Failed to connect to socket \"%s:%s\" %s",
1458 host, port, _dbus_strerror_from_errno ());
1462 if (noncefile != NULL)
1464 DBusString noncefileStr;
1466 if (!_dbus_string_init (&noncefileStr) ||
1467 !_dbus_string_append(&noncefileStr, noncefile))
1470 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1474 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1476 _dbus_string_free (&noncefileStr);
1485 _dbus_fd_set_close_on_exec (fd);
1487 if (!_dbus_set_fd_nonblocking (fd, error))
1497 * Creates a socket and binds it to the given path, then listens on
1498 * the socket. The socket is set to be nonblocking. In case of port=0
1499 * a random free port is used and returned in the port parameter.
1500 * If inaddr_any is specified, the hostname is ignored.
1502 * @param host the host name to listen on
1503 * @param port the port to listen on, if zero a free port will be used
1504 * @param family the address family to listen on, NULL for all
1505 * @param retport string to return the actual port listened on
1506 * @param fds_p location to store returned file descriptors
1507 * @param error return location for errors
1508 * @returns the number of listening file descriptors or -1 on error
1512 _dbus_listen_tcp_socket (const char *host,
1515 DBusString *retport,
1519 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1520 struct addrinfo hints;
1521 struct addrinfo *ai, *tmp;
1523 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1524 //That's required for family == IPv6(which is the default on Vista if family is not given)
1525 //So we use our own union instead of sockaddr_gen:
1528 struct sockaddr Address;
1529 struct sockaddr_in AddressIn;
1530 struct sockaddr_in6 AddressIn6;
1534 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1536 _dbus_win_startup_winsock ();
1541 hints.ai_family = AF_UNSPEC;
1542 else if (!strcmp(family, "ipv4"))
1543 hints.ai_family = AF_INET;
1544 else if (!strcmp(family, "ipv6"))
1545 hints.ai_family = AF_INET6;
1548 dbus_set_error (error,
1549 DBUS_ERROR_INVALID_ARGS,
1550 "Unknown address family %s", family);
1554 hints.ai_protocol = IPPROTO_TCP;
1555 hints.ai_socktype = SOCK_STREAM;
1556 #ifdef AI_ADDRCONFIG
1557 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1559 hints.ai_flags = AI_PASSIVE;
1562 redo_lookup_with_port:
1563 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1565 dbus_set_error (error,
1566 _dbus_error_from_errno (res),
1567 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1568 host ? host : "*", port, _dbus_strerror(res), res);
1575 int fd = -1, *newlisten_fd;
1576 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1578 DBUS_SOCKET_SET_ERRNO ();
1579 dbus_set_error (error,
1580 _dbus_error_from_errno (errno),
1581 "Failed to open socket: %s",
1582 _dbus_strerror_from_errno ());
1585 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1587 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1589 DBUS_SOCKET_SET_ERRNO ();
1590 dbus_set_error (error, _dbus_error_from_errno (errno),
1591 "Failed to bind socket \"%s:%s\": %s",
1592 host ? host : "*", port, _dbus_strerror_from_errno ());
1597 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1599 DBUS_SOCKET_SET_ERRNO ();
1600 dbus_set_error (error, _dbus_error_from_errno (errno),
1601 "Failed to listen on socket \"%s:%s\": %s",
1602 host ? host : "*", port, _dbus_strerror_from_errno ());
1607 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1611 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1612 "Failed to allocate file handle array");
1615 listen_fd = newlisten_fd;
1616 listen_fd[nlisten_fd] = fd;
1619 if (!_dbus_string_get_length(retport))
1621 /* If the user didn't specify a port, or used 0, then
1622 the kernel chooses a port. After the first address
1623 is bound to, we need to force all remaining addresses
1624 to use the same port */
1625 if (!port || !strcmp(port, "0"))
1627 mysockaddr_gen addr;
1628 socklen_t addrlen = sizeof(addr);
1631 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1633 DBUS_SOCKET_SET_ERRNO ();
1634 dbus_set_error (error, _dbus_error_from_errno (errno),
1635 "Failed to resolve port \"%s:%s\": %s",
1636 host ? host : "*", port, _dbus_strerror_from_errno());
1639 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1640 if (!_dbus_string_append(retport, portbuf))
1642 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1646 /* Release current address list & redo lookup */
1647 port = _dbus_string_get_const_data(retport);
1649 goto redo_lookup_with_port;
1653 if (!_dbus_string_append(retport, port))
1655 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1668 _dbus_win_set_errno (WSAEADDRINUSE);
1669 dbus_set_error (error, _dbus_error_from_errno (errno),
1670 "Failed to bind socket \"%s:%s\": %s",
1671 host ? host : "*", port, _dbus_strerror_from_errno ());
1675 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1677 for (i = 0 ; i < nlisten_fd ; i++)
1679 _dbus_fd_set_close_on_exec (listen_fd[i]);
1680 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1693 for (i = 0 ; i < nlisten_fd ; i++)
1694 closesocket (listen_fd[i]);
1695 dbus_free(listen_fd);
1701 * Accepts a connection on a listening socket.
1702 * Handles EINTR for you.
1704 * @param listen_fd the listen file descriptor
1705 * @returns the connection fd of the client, or -1 on error
1708 _dbus_accept (int listen_fd)
1713 client_fd = accept (listen_fd, NULL, NULL);
1715 if (DBUS_SOCKET_IS_INVALID (client_fd))
1717 DBUS_SOCKET_SET_ERRNO ();
1722 _dbus_verbose ("client fd %d accepted\n", client_fd);
1731 _dbus_send_credentials_socket (int handle,
1734 /* FIXME: for the session bus credentials shouldn't matter (?), but
1735 * for the system bus they are presumably essential. A rough outline
1736 * of a way to implement the credential transfer would be this:
1738 * client waits to *read* a byte.
1740 * server creates a named pipe with a random name, sends a byte
1741 * contining its length, and its name.
1743 * client reads the name, connects to it (using Win32 API).
1745 * server waits for connection to the named pipe, then calls
1746 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1747 * calls RevertToSelf(), closes its handles to the named pipe, and
1748 * is done. (Maybe there is some other way to get the SID of a named
1749 * pipe client without having to use impersonation?)
1751 * client closes its handles and is done.
1753 * Ralf: Why not sending credentials over the given this connection ?
1754 * Using named pipes makes it impossible to be connected from a unix client.
1760 _dbus_string_init_const_len (&buf, "\0", 1);
1762 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1764 if (bytes_written < 0 && errno == EINTR)
1767 if (bytes_written < 0)
1769 dbus_set_error (error, _dbus_error_from_errno (errno),
1770 "Failed to write credentials byte: %s",
1771 _dbus_strerror_from_errno ());
1774 else if (bytes_written == 0)
1776 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1777 "wrote zero bytes writing credentials byte");
1782 _dbus_assert (bytes_written == 1);
1783 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1790 * Reads a single byte which must be nul (an error occurs otherwise),
1791 * and reads unix credentials if available. Fills in pid/uid/gid with
1792 * -1 if no credentials are available. Return value indicates whether
1793 * a byte was read, not whether we got valid credentials. On some
1794 * systems, such as Linux, reading/writing the byte isn't actually
1795 * required, but we do it anyway just to avoid multiple codepaths.
1797 * Fails if no byte is available, so you must select() first.
1799 * The point of the byte is that on some systems we have to
1800 * use sendmsg()/recvmsg() to transmit credentials.
1802 * @param client_fd the client file descriptor
1803 * @param credentials struct to fill with credentials of client
1804 * @param error location to store error code
1805 * @returns #TRUE on success
1808 _dbus_read_credentials_socket (int handle,
1809 DBusCredentials *credentials,
1819 // could fail due too OOM
1820 if (_dbus_string_init (&buf))
1822 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1825 _dbus_verbose ("got one zero byte from server\n");
1827 _dbus_string_free (&buf);
1830 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1834 _dbus_credentials_add_pid (credentials, pid);
1836 if (_dbus_getsid (&sid, pid))
1838 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1852 * Checks to make sure the given directory is
1853 * private to the user
1855 * @param dir the name of the directory
1856 * @param error error return
1857 * @returns #FALSE on failure
1860 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1863 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1869 * Appends the given filename to the given directory.
1871 * @todo it might be cute to collapse multiple '/' such as "foo//"
1874 * @param dir the directory name
1875 * @param next_component the filename
1876 * @returns #TRUE on success
1879 _dbus_concat_dir_and_file (DBusString *dir,
1880 const DBusString *next_component)
1882 dbus_bool_t dir_ends_in_slash;
1883 dbus_bool_t file_starts_with_slash;
1885 if (_dbus_string_get_length (dir) == 0 ||
1886 _dbus_string_get_length (next_component) == 0)
1890 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1891 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1893 file_starts_with_slash =
1894 ('/' == _dbus_string_get_byte (next_component, 0) ||
1895 '\\' == _dbus_string_get_byte (next_component, 0));
1897 if (dir_ends_in_slash && file_starts_with_slash)
1899 _dbus_string_shorten (dir, 1);
1901 else if (!(dir_ends_in_slash || file_starts_with_slash))
1903 if (!_dbus_string_append_byte (dir, '\\'))
1907 return _dbus_string_copy (next_component, 0, dir,
1908 _dbus_string_get_length (dir));
1911 /*---------------- DBusCredentials ----------------------------------*/
1914 * Adds the credentials corresponding to the given username.
1916 * @param credentials credentials to fill in
1917 * @param username the username
1918 * @returns #TRUE if the username existed and we got some credentials
1921 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1922 const DBusString *username)
1924 return _dbus_credentials_add_windows_sid (credentials,
1925 _dbus_string_get_const_data(username));
1929 * Adds the credentials of the current process to the
1930 * passed-in credentials object.
1932 * @param credentials credentials to add to
1933 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
1937 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
1939 dbus_bool_t retval = FALSE;
1942 if (!_dbus_getsid(&sid, _dbus_getpid()))
1945 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
1948 if (!_dbus_credentials_add_windows_sid (credentials,sid))
1963 * Append to the string the identity we would like to have when we
1964 * authenticate, on UNIX this is the current process UID and on
1965 * Windows something else, probably a Windows SID string. No escaping
1966 * is required, that is done in dbus-auth.c. The username here
1967 * need not be anything human-readable, it can be the machine-readable
1968 * form i.e. a user id.
1970 * @param str the string to append to
1971 * @returns #FALSE on no memory
1972 * @todo to which class belongs this
1975 _dbus_append_user_from_current_process (DBusString *str)
1977 dbus_bool_t retval = FALSE;
1980 if (!_dbus_getsid(&sid, _dbus_getpid()))
1983 retval = _dbus_string_append (str,sid);
1990 * Gets our process ID
1991 * @returns process ID
1996 return GetCurrentProcessId ();
1999 /** nanoseconds in a second */
2000 #define NANOSECONDS_PER_SECOND 1000000000
2001 /** microseconds in a second */
2002 #define MICROSECONDS_PER_SECOND 1000000
2003 /** milliseconds in a second */
2004 #define MILLISECONDS_PER_SECOND 1000
2005 /** nanoseconds in a millisecond */
2006 #define NANOSECONDS_PER_MILLISECOND 1000000
2007 /** microseconds in a millisecond */
2008 #define MICROSECONDS_PER_MILLISECOND 1000
2011 * Sleeps the given number of milliseconds.
2012 * @param milliseconds number of milliseconds
2015 _dbus_sleep_milliseconds (int milliseconds)
2017 Sleep (milliseconds);
2022 * Get current time, as in gettimeofday(). Never uses the monotonic
2025 * @param tv_sec return location for number of seconds
2026 * @param tv_usec return location for number of microseconds
2029 _dbus_get_real_time (long *tv_sec,
2033 dbus_uint64_t time64;
2035 GetSystemTimeAsFileTime (&ft);
2037 memcpy (&time64, &ft, sizeof (time64));
2039 /* Convert from 100s of nanoseconds since 1601-01-01
2040 * to Unix epoch. Yes, this is Y2038 unsafe.
2042 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2046 *tv_sec = time64 / 1000000;
2049 *tv_usec = time64 % 1000000;
2053 * Get current time, as in gettimeofday(). Use the monotonic clock if
2054 * available, to avoid problems when the system time changes.
2056 * @param tv_sec return location for number of seconds
2057 * @param tv_usec return location for number of microseconds
2060 _dbus_get_monotonic_time (long *tv_sec,
2063 /* no implementation yet, fall back to wall-clock time */
2064 _dbus_get_real_time (tv_sec, tv_usec);
2068 * signal (SIGPIPE, SIG_IGN);
2071 _dbus_disable_sigpipe (void)
2076 * Creates a directory; succeeds if the directory
2077 * is created or already existed.
2079 * @param filename directory filename
2080 * @param error initialized error object
2081 * @returns #TRUE on success
2084 _dbus_create_directory (const DBusString *filename,
2087 const char *filename_c;
2089 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2091 filename_c = _dbus_string_get_const_data (filename);
2093 if (!CreateDirectoryA (filename_c, NULL))
2095 if (GetLastError () == ERROR_ALREADY_EXISTS)
2098 dbus_set_error (error, DBUS_ERROR_FAILED,
2099 "Failed to create directory %s: %s\n",
2100 filename_c, _dbus_strerror_from_errno ());
2109 * Generates the given number of random bytes,
2110 * using the best mechanism we can come up with.
2112 * @param str the string
2113 * @param n_bytes the number of random bytes to append to string
2114 * @returns #TRUE on success, #FALSE if no memory
2117 _dbus_generate_random_bytes (DBusString *str,
2124 old_len = _dbus_string_get_length (str);
2126 if (!_dbus_string_lengthen (str, n_bytes))
2129 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2131 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2134 if (!CryptGenRandom (hprov, n_bytes, p))
2136 CryptReleaseContext (hprov, 0);
2140 CryptReleaseContext (hprov, 0);
2146 * Gets the temporary files directory by inspecting the environment variables
2147 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2149 * @returns location of temp directory
2152 _dbus_get_tmpdir(void)
2154 static const char* tmpdir = NULL;
2155 static char buf[1000];
2161 if (!GetTempPathA (sizeof (buf), buf))
2163 _dbus_warn ("GetTempPath failed\n");
2167 /* Drop terminating backslash or slash */
2168 last_slash = _mbsrchr (buf, '\\');
2169 if (last_slash > buf && last_slash[1] == '\0')
2170 last_slash[0] = '\0';
2171 last_slash = _mbsrchr (buf, '/');
2172 if (last_slash > buf && last_slash[1] == '\0')
2173 last_slash[0] = '\0';
2178 _dbus_assert(tmpdir != NULL);
2185 * Deletes the given file.
2187 * @param filename the filename
2188 * @param error error location
2190 * @returns #TRUE if unlink() succeeded
2193 _dbus_delete_file (const DBusString *filename,
2196 const char *filename_c;
2198 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2200 filename_c = _dbus_string_get_const_data (filename);
2202 if (DeleteFileA (filename_c) == 0)
2204 dbus_set_error (error, DBUS_ERROR_FAILED,
2205 "Failed to delete file %s: %s\n",
2206 filename_c, _dbus_strerror_from_errno ());
2214 * replaces the term DBUS_PREFIX in configure_time_path by the
2215 * current dbus installation directory. On unix this function is a noop
2217 * @param configure_time_path
2221 _dbus_replace_install_prefix (const char *configure_time_path)
2224 return configure_time_path;
2226 static char retval[1000];
2227 static char runtime_prefix[1000];
2231 if (!configure_time_path)
2234 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2235 strncmp (configure_time_path, DBUS_PREFIX "/",
2236 strlen (DBUS_PREFIX) + 1))) {
2237 strcat (retval, configure_time_path);
2241 strcpy (retval, runtime_prefix);
2242 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2244 /* Somehow, in some situations, backslashes get collapsed in the string.
2245 * Since windows C library accepts both forward and backslashes as
2246 * path separators, convert all backslashes to forward slashes.
2249 for(i = 0; retval[i] != '\0'; i++) {
2250 if(retval[i] == '\\')
2257 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2259 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2269 * Backtrace Generator
2271 * Copyright 2004 Eric Poech
2272 * Copyright 2004 Robert Shearman
2274 * This library is free software; you can redistribute it and/or
2275 * modify it under the terms of the GNU Lesser General Public
2276 * License as published by the Free Software Foundation; either
2277 * version 2.1 of the License, or (at your option) any later version.
2279 * This library is distributed in the hope that it will be useful,
2280 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2281 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2282 * Lesser General Public License for more details.
2284 * You should have received a copy of the GNU Lesser General Public
2285 * License along with this library; if not, write to the Free Software
2286 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2290 #include <imagehlp.h>
2293 #define DPRINTF _dbus_warn
2301 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2303 //MAKE_FUNCPTR(StackWalk);
2304 //MAKE_FUNCPTR(SymGetModuleBase);
2305 //MAKE_FUNCPTR(SymFunctionTableAccess);
2306 //MAKE_FUNCPTR(SymInitialize);
2307 //MAKE_FUNCPTR(SymGetSymFromAddr);
2308 //MAKE_FUNCPTR(SymGetModuleInfo);
2309 static BOOL (WINAPI *pStackWalk)(
2313 LPSTACKFRAME StackFrame,
2314 PVOID ContextRecord,
2315 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2316 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2317 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2318 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2321 static DWORD64 (WINAPI *pSymGetModuleBase)(
2325 static PVOID (WINAPI *pSymFunctionTableAccess)(
2330 static DWORD (WINAPI *pSymGetModuleBase)(
2334 static PVOID (WINAPI *pSymFunctionTableAccess)(
2339 static BOOL (WINAPI *pSymInitialize)(
2341 PSTR UserSearchPath,
2344 static BOOL (WINAPI *pSymGetSymFromAddr)(
2347 PDWORD Displacement,
2348 PIMAGEHLP_SYMBOL Symbol
2350 static BOOL (WINAPI *pSymGetModuleInfo)(
2353 PIMAGEHLP_MODULE ModuleInfo
2355 static DWORD (WINAPI *pSymSetOptions)(
2360 static BOOL init_backtrace()
2362 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2364 #define GETFUNC(x) \
2365 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2373 // GETFUNC(StackWalk);
2374 // GETFUNC(SymGetModuleBase);
2375 // GETFUNC(SymFunctionTableAccess);
2376 // GETFUNC(SymInitialize);
2377 // GETFUNC(SymGetSymFromAddr);
2378 // GETFUNC(SymGetModuleInfo);
2382 pStackWalk = (BOOL (WINAPI *)(
2386 LPSTACKFRAME StackFrame,
2387 PVOID ContextRecord,
2388 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2389 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2390 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2391 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2392 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2394 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2397 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2398 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2401 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2403 pSymGetModuleBase=(DWORD (WINAPI *)(
2406 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2407 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2410 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2412 pSymInitialize = (BOOL (WINAPI *)(
2414 PSTR UserSearchPath,
2416 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2417 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2420 PDWORD Displacement,
2421 PIMAGEHLP_SYMBOL Symbol
2422 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2423 pSymGetModuleInfo = (BOOL (WINAPI *)(
2426 PIMAGEHLP_MODULE ModuleInfo
2427 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2428 pSymSetOptions = (DWORD (WINAPI *)(
2430 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2433 pSymSetOptions(SYMOPT_UNDNAME);
2435 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2440 static void dump_backtrace_for_thread(HANDLE hThread)
2447 if (!init_backtrace())
2450 /* can't use this function for current thread as GetThreadContext
2451 * doesn't support getting context from current thread */
2452 if (hThread == GetCurrentThread())
2455 DPRINTF("Backtrace:\n");
2457 _DBUS_ZERO(context);
2458 context.ContextFlags = CONTEXT_FULL;
2460 SuspendThread(hThread);
2462 if (!GetThreadContext(hThread, &context))
2464 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2465 ResumeThread(hThread);
2472 sf.AddrFrame.Offset = context.Ebp;
2473 sf.AddrFrame.Mode = AddrModeFlat;
2474 sf.AddrPC.Offset = context.Eip;
2475 sf.AddrPC.Mode = AddrModeFlat;
2476 dwImageType = IMAGE_FILE_MACHINE_I386;
2478 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2479 sf.AddrPC.Offset = context.Rip;
2480 sf.AddrPC.Mode = AddrModeFlat;
2481 sf.AddrFrame.Offset = context.Rsp;
2482 sf.AddrFrame.Mode = AddrModeFlat;
2483 sf.AddrStack.Offset = context.Rsp;
2484 sf.AddrStack.Mode = AddrModeFlat;
2486 dwImageType = IMAGE_FILE_MACHINE_IA64;
2487 sf.AddrPC.Offset = context.StIIP;
2488 sf.AddrPC.Mode = AddrModeFlat;
2489 sf.AddrFrame.Offset = context.IntSp;
2490 sf.AddrFrame.Mode = AddrModeFlat;
2491 sf.AddrBStore.Offset= context.RsBSP;
2492 sf.AddrBStore.Mode = AddrModeFlat;
2493 sf.AddrStack.Offset = context.IntSp;
2494 sf.AddrStack.Mode = AddrModeFlat;
2496 # error You need to fill in the STACKFRAME structure for your architecture
2499 while (pStackWalk(dwImageType, GetCurrentProcess(),
2500 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2501 pSymGetModuleBase, NULL))
2504 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2505 DWORD dwDisplacement;
2507 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2508 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2510 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2511 &dwDisplacement, pSymbol))
2513 IMAGEHLP_MODULE ModuleInfo;
2514 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2516 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2518 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2520 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2521 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2523 else if (dwDisplacement)
2524 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2526 DPRINTF("4\t%s\n", pSymbol->Name);
2529 ResumeThread(hThread);
2532 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2534 dump_backtrace_for_thread((HANDLE)lpParameter);
2538 /* cannot get valid context from current thread, so we have to execute
2539 * backtrace from another thread */
2540 static void dump_backtrace()
2542 HANDLE hCurrentThread;
2545 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2546 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2547 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2549 WaitForSingleObject(hThread, INFINITE);
2550 CloseHandle(hThread);
2551 CloseHandle(hCurrentThread);
2554 #endif /* asserts or tests enabled */
2557 void _dbus_print_backtrace(void)
2563 void _dbus_print_backtrace(void)
2565 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2569 static dbus_uint32_t fromAscii(char ascii)
2571 if(ascii >= '0' && ascii <= '9')
2573 if(ascii >= 'A' && ascii <= 'F')
2574 return ascii - 'A' + 10;
2575 if(ascii >= 'a' && ascii <= 'f')
2576 return ascii - 'a' + 10;
2580 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2581 dbus_bool_t create_if_not_found,
2588 HW_PROFILE_INFOA info;
2589 char *lpc = &info.szHwProfileGuid[0];
2592 // the hw-profile guid lives long enough
2593 if(!GetCurrentHwProfileA(&info))
2595 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2599 // Form: {12340001-4980-1920-6788-123456789012}
2602 u = ((fromAscii(lpc[0]) << 0) |
2603 (fromAscii(lpc[1]) << 4) |
2604 (fromAscii(lpc[2]) << 8) |
2605 (fromAscii(lpc[3]) << 12) |
2606 (fromAscii(lpc[4]) << 16) |
2607 (fromAscii(lpc[5]) << 20) |
2608 (fromAscii(lpc[6]) << 24) |
2609 (fromAscii(lpc[7]) << 28));
2610 machine_id->as_uint32s[0] = u;
2614 u = ((fromAscii(lpc[0]) << 0) |
2615 (fromAscii(lpc[1]) << 4) |
2616 (fromAscii(lpc[2]) << 8) |
2617 (fromAscii(lpc[3]) << 12) |
2618 (fromAscii(lpc[5]) << 16) |
2619 (fromAscii(lpc[6]) << 20) |
2620 (fromAscii(lpc[7]) << 24) |
2621 (fromAscii(lpc[8]) << 28));
2622 machine_id->as_uint32s[1] = u;
2626 u = ((fromAscii(lpc[0]) << 0) |
2627 (fromAscii(lpc[1]) << 4) |
2628 (fromAscii(lpc[2]) << 8) |
2629 (fromAscii(lpc[3]) << 12) |
2630 (fromAscii(lpc[5]) << 16) |
2631 (fromAscii(lpc[6]) << 20) |
2632 (fromAscii(lpc[7]) << 24) |
2633 (fromAscii(lpc[8]) << 28));
2634 machine_id->as_uint32s[2] = u;
2638 u = ((fromAscii(lpc[0]) << 0) |
2639 (fromAscii(lpc[1]) << 4) |
2640 (fromAscii(lpc[2]) << 8) |
2641 (fromAscii(lpc[3]) << 12) |
2642 (fromAscii(lpc[4]) << 16) |
2643 (fromAscii(lpc[5]) << 20) |
2644 (fromAscii(lpc[6]) << 24) |
2645 (fromAscii(lpc[7]) << 28));
2646 machine_id->as_uint32s[3] = u;
2652 HANDLE _dbus_global_lock (const char *mutexname)
2657 mutex = CreateMutexA( NULL, FALSE, mutexname );
2663 gotMutex = WaitForSingleObject( mutex, INFINITE );
2666 case WAIT_ABANDONED:
2667 ReleaseMutex (mutex);
2668 CloseHandle (mutex);
2679 void _dbus_global_unlock (HANDLE mutex)
2681 ReleaseMutex (mutex);
2682 CloseHandle (mutex);
2685 // for proper cleanup in dbus-daemon
2686 static HANDLE hDBusDaemonMutex = NULL;
2687 static HANDLE hDBusSharedMem = NULL;
2688 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2689 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2690 // sync _dbus_get_autolaunch_address
2691 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2692 // mutex to determine if dbus-daemon is already started (per user)
2693 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2694 // named shm for dbus adress info (per user)
2695 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2698 _dbus_get_install_root_as_hash(DBusString *out)
2700 DBusString install_path;
2702 char path[MAX_PATH*2];
2703 int path_size = sizeof(path);
2705 if (!_dbus_get_install_root(path,path_size))
2708 _dbus_string_init(&install_path);
2709 _dbus_string_append(&install_path,path);
2711 _dbus_string_init(out);
2712 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2714 if (!_dbus_sha_compute (&install_path, out))
2721 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2723 _dbus_string_init(out);
2724 _dbus_string_append(out,basestring);
2730 else if (strcmp(scope,"*install-path") == 0
2731 // for 1.3 compatibility
2732 || strcmp(scope,"install-path") == 0)
2735 if (!_dbus_get_install_root_as_hash(&temp))
2737 _dbus_string_free(out);
2740 _dbus_string_append(out,"-");
2741 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2742 _dbus_string_free(&temp);
2744 else if (strcmp(scope,"*user") == 0)
2746 _dbus_string_append(out,"-");
2747 if (!_dbus_append_user_from_current_process(out))
2749 _dbus_string_free(out);
2753 else if (strlen(scope) > 0)
2755 _dbus_string_append(out,"-");
2756 _dbus_string_append(out,scope);
2763 _dbus_get_shm_name (DBusString *out,const char *scope)
2765 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2769 _dbus_get_mutex_name (DBusString *out,const char *scope)
2771 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2775 _dbus_daemon_is_session_bus_address_published (const char *scope)
2778 DBusString mutex_name;
2780 if (!_dbus_get_mutex_name(&mutex_name,scope))
2782 _dbus_string_free( &mutex_name );
2786 if (hDBusDaemonMutex)
2789 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2790 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2792 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2793 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2794 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2796 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2797 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2800 _dbus_global_unlock( lock );
2802 _dbus_string_free( &mutex_name );
2804 if (hDBusDaemonMutex == NULL)
2806 if (GetLastError() == ERROR_ALREADY_EXISTS)
2808 CloseHandle(hDBusDaemonMutex);
2809 hDBusDaemonMutex = NULL;
2812 // mutex wasn't created before, so return false.
2813 // We leave the mutex name allocated for later reusage
2814 // in _dbus_daemon_publish_session_bus_address.
2819 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2822 char *shared_addr = NULL;
2823 DBusString shm_name;
2824 DBusString mutex_name;
2826 _dbus_assert (address);
2828 if (!_dbus_get_mutex_name(&mutex_name,scope))
2830 _dbus_string_free( &mutex_name );
2834 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2835 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2837 if (!hDBusDaemonMutex)
2839 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2841 _dbus_string_free( &mutex_name );
2843 // acquire the mutex
2844 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2846 _dbus_global_unlock( lock );
2847 CloseHandle( hDBusDaemonMutex );
2851 if (!_dbus_get_shm_name(&shm_name,scope))
2853 _dbus_string_free( &shm_name );
2854 _dbus_global_unlock( lock );
2859 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2860 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2861 _dbus_assert( hDBusSharedMem );
2863 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2865 _dbus_assert (shared_addr);
2867 strcpy( shared_addr, address);
2870 UnmapViewOfFile( shared_addr );
2872 _dbus_global_unlock( lock );
2873 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2875 _dbus_string_free( &shm_name );
2880 _dbus_daemon_unpublish_session_bus_address (void)
2884 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2885 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2887 CloseHandle( hDBusSharedMem );
2889 hDBusSharedMem = NULL;
2891 ReleaseMutex( hDBusDaemonMutex );
2893 CloseHandle( hDBusDaemonMutex );
2895 hDBusDaemonMutex = NULL;
2897 _dbus_global_unlock( lock );
2901 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2909 // we know that dbus-daemon is available, so we wait until shm is available
2910 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2911 if( sharedMem == 0 )
2913 if ( sharedMem != 0)
2917 if( sharedMem == 0 )
2920 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2925 _dbus_string_init( address );
2927 _dbus_string_append( address, shared_addr );
2930 UnmapViewOfFile( shared_addr );
2932 CloseHandle( sharedMem );
2938 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2942 DBusString mutex_name;
2943 dbus_bool_t bRet = TRUE;
2945 if (!_dbus_get_mutex_name(&mutex_name,scope))
2947 _dbus_string_free( &mutex_name );
2951 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2952 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2955 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2956 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2958 ReleaseMutex (daemon);
2959 CloseHandle (daemon);
2961 _dbus_global_unlock( lock );
2962 _dbus_string_free( &mutex_name );
2967 bRet = _dbus_get_autolaunch_shm( address, shm_name );
2970 CloseHandle ( daemon );
2972 _dbus_global_unlock( lock );
2973 _dbus_string_free( &mutex_name );
2979 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2984 PROCESS_INFORMATION pi;
2985 dbus_bool_t retval = FALSE;
2987 char dbus_exe_path[MAX_PATH];
2988 char dbus_args[MAX_PATH * 2];
2989 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2990 DBusString shm_name;
2992 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2994 if (!_dbus_get_shm_name(&shm_name,scope))
2996 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3000 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3002 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3004 _dbus_verbose( "found running dbus daemon at %s\n",
3005 _dbus_string_get_const_data (&shm_name) );
3010 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3012 // Look in directory containing dbus shared library
3014 char dbus_module_path[MAX_PATH];
3017 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3018 "trying path where dbus shared library is located");
3020 hmod = _dbus_win_get_dll_hmodule();
3021 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3024 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3030 char *ext_idx = strrchr(dbus_module_path, '\\');
3033 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3035 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3037 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3038 printf ("or start the daemon manually\n\n");
3041 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3047 ZeroMemory( &si, sizeof(si) );
3049 ZeroMemory( &pi, sizeof(pi) );
3051 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3053 // argv[i] = "--config-file=bus\\session.conf";
3054 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3055 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3057 CloseHandle (pi.hThread);
3058 CloseHandle (pi.hProcess);
3059 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3060 if (retval == FALSE)
3061 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3065 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3071 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3073 _DBUS_ASSERT_ERROR_IS_SET (error);
3075 _dbus_global_unlock (mutex);
3081 /** Makes the file readable by every user in the system.
3083 * @param filename the filename
3084 * @param error error location
3085 * @returns #TRUE if the file's permissions could be changed.
3088 _dbus_make_file_world_readable(const DBusString *filename,
3096 * return the relocated DATADIR
3098 * @returns relocated DATADIR static string
3102 _dbus_windows_get_datadir (void)
3104 return _dbus_replace_install_prefix(DBUS_DATADIR);
3108 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3111 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3112 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3115 * Returns the standard directories for a session bus to look for service
3118 * On Windows this should be data directories:
3120 * %CommonProgramFiles%/dbus
3124 * relocated DBUS_DATADIR
3126 * @param dirs the directory list we are returning
3127 * @returns #FALSE on OOM
3131 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3133 const char *common_progs;
3134 DBusString servicedir_path;
3136 if (!_dbus_string_init (&servicedir_path))
3141 /* On Windows CE, we adjust datadir dynamically to installation location. */
3142 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3144 if (data_dir != NULL)
3146 if (!_dbus_string_append (&servicedir_path, data_dir))
3149 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3155 the code for accessing services requires absolute base pathes
3156 in case DBUS_DATADIR is relative make it absolute
3162 _dbus_string_init_const (&p, DBUS_DATADIR);
3164 if (!_dbus_path_is_absolute (&p))
3166 char install_root[1000];
3167 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3168 if (!_dbus_string_append (&servicedir_path, install_root))
3173 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3176 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3180 common_progs = _dbus_getenv ("CommonProgramFiles");
3182 if (common_progs != NULL)
3184 if (!_dbus_string_append (&servicedir_path, common_progs))
3187 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3191 if (!_dbus_split_paths_and_append (&servicedir_path,
3192 DBUS_STANDARD_SESSION_SERVICEDIR,
3196 _dbus_string_free (&servicedir_path);
3200 _dbus_string_free (&servicedir_path);
3205 * Returns the standard directories for a system bus to look for service
3208 * On UNIX this should be the standard xdg freedesktop.org data directories:
3210 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3216 * On Windows there is no system bus and this function can return nothing.
3218 * @param dirs the directory list we are returning
3219 * @returns #FALSE on OOM
3223 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3230 * Atomically increments an integer
3232 * @param atomic pointer to the integer to increment
3233 * @returns the value before incrementing
3237 _dbus_atomic_inc (DBusAtomic *atomic)
3239 // +/- 1 is needed here!
3240 // no volatile argument with mingw
3241 return InterlockedIncrement (&atomic->value) - 1;
3245 * Atomically decrement an integer
3247 * @param atomic pointer to the integer to decrement
3248 * @returns the value before decrementing
3252 _dbus_atomic_dec (DBusAtomic *atomic)
3254 // +/- 1 is needed here!
3255 // no volatile argument with mingw
3256 return InterlockedDecrement (&atomic->value) + 1;
3260 * Atomically get the value of an integer. It may change at any time
3261 * thereafter, so this is mostly only useful for assertions.
3263 * @param atomic pointer to the integer to get
3264 * @returns the value at this moment
3267 _dbus_atomic_get (DBusAtomic *atomic)
3269 /* In this situation, GLib issues a MemoryBarrier() and then returns
3270 * atomic->value. However, mingw from mingw.org (not to be confused with
3271 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3272 * headers, so we have to get a memory barrier some other way.
3274 * InterlockedIncrement is older, and is documented on MSDN to be a full
3275 * memory barrier, so let's use that.
3279 InterlockedExchange (&dummy, 1);
3281 return atomic->value;
3285 * Called when the bus daemon is signaled to reload its configuration; any
3286 * caches should be nuked. Of course any caches that need explicit reload
3287 * are probably broken, but c'est la vie.
3292 _dbus_flush_caches (void)
3297 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3298 * for Winsock so is abstracted)
3300 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3303 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3305 return errno == WSAEWOULDBLOCK;
3309 * return the absolute path of the dbus installation
3311 * @param s buffer for installation path
3312 * @param len length of buffer
3313 * @returns #FALSE on failure
3316 _dbus_get_install_root(char *prefix, int len)
3318 //To find the prefix, we cut the filename and also \bin\ if present
3322 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3323 if ( pathLength == 0 || GetLastError() != 0 ) {
3327 lastSlash = _mbsrchr(prefix, '\\');
3328 if (lastSlash == NULL) {
3332 //cut off binary name
3335 //cut possible "\\bin"
3337 //this fails if we are in a double-byte system codepage and the
3338 //folder's name happens to end with the *bytes*
3339 //"\\bin"... (I.e. the second byte of some Han character and then
3340 //the Latin "bin", but that is not likely I think...
3341 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3343 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3345 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3352 find config file either from installation or build root according to
3353 the following path layout
3355 bin/dbus-daemon[d].exe
3356 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3357 (the former above is what dbus4win uses, the latter above is
3358 what a "normal" Unix-style "make install" uses)
3361 bin/dbus-daemon[d].exe
3362 bus/<config-file>.conf
3365 _dbus_get_config_file_name(DBusString *config_file, char *s)
3367 char path[MAX_PATH*2];
3368 int path_size = sizeof(path);
3370 if (!_dbus_get_install_root(path,path_size))
3373 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3375 strcat(path,"etc\\");
3377 if (_dbus_file_exists(path))
3379 // find path from executable
3380 if (!_dbus_string_append (config_file, path))
3385 if (!_dbus_get_install_root(path,path_size))
3387 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3389 strcat(path,"etc\\dbus-1\\");
3392 if (_dbus_file_exists(path))
3394 if (!_dbus_string_append (config_file, path))
3399 if (!_dbus_get_install_root(path,path_size))
3401 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3403 strcat(path,"bus\\");
3406 if (_dbus_file_exists(path))
3408 if (!_dbus_string_append (config_file, path))
3417 * Append the absolute path of the system.conf file
3418 * (there is no system bus on Windows so this can just
3419 * return FALSE and print a warning or something)
3421 * @param str the string to append to
3422 * @returns #FALSE if no memory
3425 _dbus_append_system_config_file (DBusString *str)
3427 return _dbus_get_config_file_name(str, "system.conf");
3431 * Append the absolute path of the session.conf file.
3433 * @param str the string to append to
3434 * @returns #FALSE if no memory
3437 _dbus_append_session_config_file (DBusString *str)
3439 return _dbus_get_config_file_name(str, "session.conf");
3442 /* See comment in dbus-sysdeps-unix.c */
3444 _dbus_lookup_session_address (dbus_bool_t *supported,
3445 DBusString *address,
3448 /* Probably fill this in with something based on COM? */
3454 * Appends the directory in which a keyring for the given credentials
3455 * should be stored. The credentials should have either a Windows or
3456 * UNIX user in them. The directory should be an absolute path.
3458 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3459 * be something else, since the dotfile convention is not normal on Windows.
3461 * @param directory string to append directory to
3462 * @param credentials credentials the directory should be for
3464 * @returns #FALSE on no memory
3467 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3468 DBusCredentials *credentials)
3472 const char *homepath;
3473 const char *homedrive;
3475 _dbus_assert (credentials != NULL);
3476 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3478 if (!_dbus_string_init (&homedir))
3481 homedrive = _dbus_getenv("HOMEDRIVE");
3482 if (homedrive != NULL && *homedrive != '\0')
3484 _dbus_string_append(&homedir,homedrive);
3487 homepath = _dbus_getenv("HOMEPATH");
3488 if (homepath != NULL && *homepath != '\0')
3490 _dbus_string_append(&homedir,homepath);
3493 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3495 const char *override;
3497 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3498 if (override != NULL && *override != '\0')
3500 _dbus_string_set_length (&homedir, 0);
3501 if (!_dbus_string_append (&homedir, override))
3504 _dbus_verbose ("Using fake homedir for testing: %s\n",
3505 _dbus_string_get_const_data (&homedir));
3509 static dbus_bool_t already_warned = FALSE;
3510 if (!already_warned)
3512 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3513 already_warned = TRUE;
3520 /* It's not possible to create a .something directory in Windows CE
3521 using the file explorer. */
3522 #define KEYRING_DIR "dbus-keyrings"
3524 #define KEYRING_DIR ".dbus-keyrings"
3527 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3528 if (!_dbus_concat_dir_and_file (&homedir,
3532 if (!_dbus_string_copy (&homedir, 0,
3533 directory, _dbus_string_get_length (directory))) {
3537 _dbus_string_free (&homedir);
3541 _dbus_string_free (&homedir);
3545 /** Checks if a file exists
3547 * @param file full path to the file
3548 * @returns #TRUE if file exists
3551 _dbus_file_exists (const char *file)
3553 DWORD attributes = GetFileAttributesA (file);
3555 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3562 * A wrapper around strerror() because some platforms
3563 * may be lame and not have strerror().
3565 * @param error_number errno.
3566 * @returns error description.
3569 _dbus_strerror (int error_number)
3577 switch (error_number)
3580 return "Interrupted function call";
3582 return "Permission denied";
3584 return "Bad address";
3586 return "Invalid argument";
3588 return "Too many open files";
3589 case WSAEWOULDBLOCK:
3590 return "Resource temporarily unavailable";
3591 case WSAEINPROGRESS:
3592 return "Operation now in progress";
3594 return "Operation already in progress";
3596 return "Socket operation on nonsocket";
3597 case WSAEDESTADDRREQ:
3598 return "Destination address required";
3600 return "Message too long";
3602 return "Protocol wrong type for socket";
3603 case WSAENOPROTOOPT:
3604 return "Bad protocol option";
3605 case WSAEPROTONOSUPPORT:
3606 return "Protocol not supported";
3607 case WSAESOCKTNOSUPPORT:
3608 return "Socket type not supported";
3610 return "Operation not supported";
3611 case WSAEPFNOSUPPORT:
3612 return "Protocol family not supported";
3613 case WSAEAFNOSUPPORT:
3614 return "Address family not supported by protocol family";
3616 return "Address already in use";
3617 case WSAEADDRNOTAVAIL:
3618 return "Cannot assign requested address";
3620 return "Network is down";
3621 case WSAENETUNREACH:
3622 return "Network is unreachable";
3624 return "Network dropped connection on reset";
3625 case WSAECONNABORTED:
3626 return "Software caused connection abort";
3628 return "Connection reset by peer";
3630 return "No buffer space available";
3632 return "Socket is already connected";
3634 return "Socket is not connected";
3636 return "Cannot send after socket shutdown";
3638 return "Connection timed out";
3639 case WSAECONNREFUSED:
3640 return "Connection refused";
3642 return "Host is down";
3643 case WSAEHOSTUNREACH:
3644 return "No route to host";
3646 return "Too many processes";
3648 return "Graceful shutdown in progress";
3649 case WSATYPE_NOT_FOUND:
3650 return "Class type not found";
3651 case WSAHOST_NOT_FOUND:
3652 return "Host not found";
3654 return "Nonauthoritative host not found";
3655 case WSANO_RECOVERY:
3656 return "This is a nonrecoverable error";
3658 return "Valid name, no data record of requested type";
3659 case WSA_INVALID_HANDLE:
3660 return "Specified event object handle is invalid";
3661 case WSA_INVALID_PARAMETER:
3662 return "One or more parameters are invalid";
3663 case WSA_IO_INCOMPLETE:
3664 return "Overlapped I/O event object not in signaled state";
3665 case WSA_IO_PENDING:
3666 return "Overlapped operations will complete later";
3667 case WSA_NOT_ENOUGH_MEMORY:
3668 return "Insufficient memory available";
3669 case WSA_OPERATION_ABORTED:
3670 return "Overlapped operation aborted";
3671 #ifdef WSAINVALIDPROCTABLE
3673 case WSAINVALIDPROCTABLE:
3674 return "Invalid procedure table from service provider";
3676 #ifdef WSAINVALIDPROVIDER
3678 case WSAINVALIDPROVIDER:
3679 return "Invalid service provider version number";
3681 #ifdef WSAPROVIDERFAILEDINIT
3683 case WSAPROVIDERFAILEDINIT:
3684 return "Unable to initialize a service provider";
3687 case WSASYSCALLFAILURE:
3688 return "System call failure";
3690 msg = strerror (error_number);
3699 * Assigns an error name and message corresponding to a Win32 error
3700 * code to a DBusError. Does nothing if error is #NULL.
3702 * @param error the error.
3703 * @param code the Win32 error code
3706 _dbus_win_set_error_from_win_error (DBusError *error,
3711 /* As we want the English message, use the A API */
3712 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3713 FORMAT_MESSAGE_IGNORE_INSERTS |
3714 FORMAT_MESSAGE_FROM_SYSTEM,
3715 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3716 (LPSTR) &msg, 0, NULL);
3721 msg_copy = dbus_malloc (strlen (msg));
3722 strcpy (msg_copy, msg);
3725 dbus_set_error (error, "win32.error", "%s", msg_copy);
3728 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3732 _dbus_win_warn_win_error (const char *message,
3737 dbus_error_init (&error);
3738 _dbus_win_set_error_from_win_error (&error, code);
3739 _dbus_warn ("%s: %s\n", message, error.message);
3740 dbus_error_free (&error);
3744 * Removes a directory; Directory must be empty
3746 * @param filename directory filename
3747 * @param error initialized error object
3748 * @returns #TRUE on success
3751 _dbus_delete_directory (const DBusString *filename,
3754 const char *filename_c;
3756 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3758 filename_c = _dbus_string_get_const_data (filename);
3760 if (RemoveDirectoryA (filename_c) == 0)
3762 char *emsg = _dbus_win_error_string (GetLastError ());
3763 dbus_set_error (error, _dbus_win_error_from_last_error (),
3764 "Failed to remove directory %s: %s",
3766 _dbus_win_free_error_string (emsg);
3774 * Checks whether the filename is an absolute path
3776 * @param filename the filename
3777 * @returns #TRUE if an absolute path
3780 _dbus_path_is_absolute (const DBusString *filename)
3782 if (_dbus_string_get_length (filename) > 0)
3783 return _dbus_string_get_byte (filename, 1) == ':'
3784 || _dbus_string_get_byte (filename, 0) == '\\'
3785 || _dbus_string_get_byte (filename, 0) == '/';
3791 _dbus_check_setuid (void)
3796 /** @} end of sysdeps-win */
3797 /* tests in dbus-sysdeps-util.c */