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)
107 static BOOL is_winxp_sp3_or_lower();
110 * _MIB_TCPROW_EX and friends are not available in system headers
111 * and are mapped to attribute identical ...OWNER_PID typedefs.
113 typedef MIB_TCPROW_OWNER_PID _MIB_TCPROW_EX;
114 typedef MIB_TCPTABLE_OWNER_PID MIB_TCPTABLE_EX;
115 typedef PMIB_TCPTABLE_OWNER_PID PMIB_TCPTABLE_EX;
116 typedef DWORD (WINAPI *ProcAllocateAndGetTcpExtTableFromStack)(PMIB_TCPTABLE_EX*,BOOL,HANDLE,DWORD,DWORD);
117 static ProcAllocateAndGetTcpExtTableFromStack lpfnAllocateAndGetTcpExTableFromStack = NULL;
119 static BOOL load_ex_ip_helper_procedures(void)
121 HMODULE hModule = LoadLibrary ("iphlpapi.dll");
125 lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
126 if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
133 * @brief return peer process id from tcp handle for localhost connections
134 * @param handle tcp socket descriptor
135 * @return process id or 0 in case the process id could not be fetched
138 _dbus_get_peer_pid_from_tcp_handle (int handle)
140 struct sockaddr_storage addr;
141 socklen_t len = sizeof (addr);
146 MIB_TCPTABLE_OWNER_PID *tcp_table;
148 dbus_bool_t is_localhost = FALSE;
150 getpeername (handle, (struct sockaddr *) &addr, &len);
152 if (addr.ss_family == AF_INET)
154 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
155 peer_port = ntohs (s->sin_port);
156 is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
158 else if (addr.ss_family == AF_INET6)
160 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
163 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
164 peer_port = ntohs (s->sin6_port);
165 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
166 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
171 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
177 _dbus_verbose ("could not fetch process id from remote process\n");
184 ("Error not been able to fetch tcp peer port from connection\n");
188 if (is_winxp_sp3_or_lower ())
190 DWORD errorCode, dwSize;
191 PMIB_TCPTABLE_EX lpBuffer = NULL;
193 if (!load_ex_ip_helper_procedures ())
196 ("Error not been able to load iphelper procedures\n");
199 errorCode = (*lpfnAllocateAndGetTcpExTableFromStack) (&lpBuffer, TRUE, GetProcessHeap(), 0, 2);
200 if (errorCode != NO_ERROR)
203 ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
208 for (dwSize = 0; dwSize < lpBuffer->dwNumEntries; dwSize++)
210 int local_port = ntohs (lpBuffer->table[dwSize].dwLocalPort);
211 int local_address = ntohl (lpBuffer->table[dwSize].dwLocalAddr);
212 if (local_address == INADDR_LOOPBACK && local_port == peer_port)
214 result = lpBuffer->table[dwSize].dwOwningPid;
220 HeapFree (GetProcessHeap(), 0, lpBuffer);
222 _dbus_verbose ("got pid %d\n", (int)result);
227 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
229 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
230 if (tcp_table == NULL)
232 _dbus_verbose ("Error allocating memory\n");
237 if ((result = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
239 _dbus_verbose ("Error fetching tcp table %d\n", result);
240 dbus_free (tcp_table);
245 for (i = 0; i < tcp_table->dwNumEntries; i++)
247 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
248 int local_address = ntohl (p->dwLocalAddr);
249 int local_port = ntohs (p->dwLocalPort);
250 if (p->dwState == MIB_TCP_STATE_ESTAB
251 && local_address == INADDR_LOOPBACK && local_port == peer_port)
252 result = p->dwOwningPid;
255 _dbus_verbose ("got pid %d\n", result);
256 dbus_free (tcp_table);
260 /* Convert GetLastError() to a dbus error. */
262 _dbus_win_error_from_last_error (void)
264 switch (GetLastError())
267 return DBUS_ERROR_FAILED;
269 case ERROR_NO_MORE_FILES:
270 case ERROR_TOO_MANY_OPEN_FILES:
271 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
273 case ERROR_ACCESS_DENIED:
274 case ERROR_CANNOT_MAKE:
275 return DBUS_ERROR_ACCESS_DENIED;
277 case ERROR_NOT_ENOUGH_MEMORY:
278 return DBUS_ERROR_NO_MEMORY;
280 case ERROR_FILE_EXISTS:
281 return DBUS_ERROR_FILE_EXISTS;
283 case ERROR_FILE_NOT_FOUND:
284 case ERROR_PATH_NOT_FOUND:
285 return DBUS_ERROR_FILE_NOT_FOUND;
288 return DBUS_ERROR_FAILED;
293 _dbus_win_error_string (int error_number)
297 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
298 FORMAT_MESSAGE_IGNORE_INSERTS |
299 FORMAT_MESSAGE_FROM_SYSTEM,
300 NULL, error_number, 0,
301 (LPSTR) &msg, 0, NULL);
303 if (msg[strlen (msg) - 1] == '\n')
304 msg[strlen (msg) - 1] = '\0';
305 if (msg[strlen (msg) - 1] == '\r')
306 msg[strlen (msg) - 1] = '\0';
312 _dbus_win_free_error_string (char *string)
323 * Thin wrapper around the read() system call that appends
324 * the data it reads to the DBusString buffer. It appends
325 * up to the given count, and returns the same value
326 * and same errno as read(). The only exception is that
327 * _dbus_read_socket() handles EINTR for you.
328 * _dbus_read_socket() can return ENOMEM, even though
329 * regular UNIX read doesn't.
331 * @param fd the file descriptor to read from
332 * @param buffer the buffer to append data to
333 * @param count the amount of data to read
334 * @returns the number of bytes read or -1
338 _dbus_read_socket (int fd,
346 _dbus_assert (count >= 0);
348 start = _dbus_string_get_length (buffer);
350 if (!_dbus_string_lengthen (buffer, count))
352 _dbus_win_set_errno (ENOMEM);
356 data = _dbus_string_get_data_len (buffer, start, count);
360 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
361 bytes_read = recv (fd, data, count, 0);
363 if (bytes_read == SOCKET_ERROR)
365 DBUS_SOCKET_SET_ERRNO();
366 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
370 _dbus_verbose ("recv: = %d\n", bytes_read);
378 /* put length back (note that this doesn't actually realloc anything) */
379 _dbus_string_set_length (buffer, start);
385 /* put length back (doesn't actually realloc) */
386 _dbus_string_set_length (buffer, start + bytes_read);
390 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
398 * Thin wrapper around the write() system call that writes a part of a
399 * DBusString and handles EINTR for you.
401 * @param fd the file descriptor to write
402 * @param buffer the buffer to write data from
403 * @param start the first byte in the buffer to write
404 * @param len the number of bytes to try to write
405 * @returns the number of bytes written or -1 on error
408 _dbus_write_socket (int fd,
409 const DBusString *buffer,
416 data = _dbus_string_get_const_data_len (buffer, start, len);
420 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
421 bytes_written = send (fd, data, len, 0);
423 if (bytes_written == SOCKET_ERROR)
425 DBUS_SOCKET_SET_ERRNO();
426 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
430 _dbus_verbose ("send: = %d\n", bytes_written);
432 if (bytes_written < 0 && errno == EINTR)
436 if (bytes_written > 0)
437 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
440 return bytes_written;
445 * Closes a file descriptor.
447 * @param fd the file descriptor
448 * @param error error object
449 * @returns #FALSE if error set
452 _dbus_close_socket (int fd,
455 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
458 if (closesocket (fd) == SOCKET_ERROR)
460 DBUS_SOCKET_SET_ERRNO ();
465 dbus_set_error (error, _dbus_error_from_errno (errno),
466 "Could not close socket: socket=%d, , %s",
467 fd, _dbus_strerror_from_errno ());
470 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
476 * Sets the file descriptor to be close
477 * on exec. Should be called for all file
478 * descriptors in D-Bus code.
480 * @param fd the file descriptor
483 _dbus_fd_set_close_on_exec (intptr_t handle)
485 if ( !SetHandleInformation( (HANDLE) handle,
486 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
487 0 /*disable both flags*/ ) )
489 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
494 * Sets a file descriptor to be nonblocking.
496 * @param fd the file descriptor.
497 * @param error address of error location.
498 * @returns #TRUE on success.
501 _dbus_set_fd_nonblocking (int handle,
506 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
508 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
510 DBUS_SOCKET_SET_ERRNO ();
511 dbus_set_error (error, _dbus_error_from_errno (errno),
512 "Failed to set socket %d:%d to nonblocking: %s", handle,
513 _dbus_strerror_from_errno ());
522 * Like _dbus_write() but will use writev() if possible
523 * to write both buffers in sequence. The return value
524 * is the number of bytes written in the first buffer,
525 * plus the number written in the second. If the first
526 * buffer is written successfully and an error occurs
527 * writing the second, the number of bytes in the first
528 * is returned (i.e. the error is ignored), on systems that
529 * don't have writev. Handles EINTR for you.
530 * The second buffer may be #NULL.
532 * @param fd the file descriptor
533 * @param buffer1 first buffer
534 * @param start1 first byte to write in first buffer
535 * @param len1 number of bytes to write from first buffer
536 * @param buffer2 second buffer, or #NULL
537 * @param start2 first byte to write in second buffer
538 * @param len2 number of bytes to write in second buffer
539 * @returns total bytes written from both buffers, or -1 on error
542 _dbus_write_socket_two (int fd,
543 const DBusString *buffer1,
546 const DBusString *buffer2,
556 _dbus_assert (buffer1 != NULL);
557 _dbus_assert (start1 >= 0);
558 _dbus_assert (start2 >= 0);
559 _dbus_assert (len1 >= 0);
560 _dbus_assert (len2 >= 0);
563 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
566 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
574 vectors[0].buf = (char*) data1;
575 vectors[0].len = len1;
576 vectors[1].buf = (char*) data2;
577 vectors[1].len = len2;
581 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
590 if (rc == SOCKET_ERROR)
592 DBUS_SOCKET_SET_ERRNO ();
593 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
597 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
599 if (bytes_written < 0 && errno == EINTR)
602 return bytes_written;
606 _dbus_socket_is_invalid (int fd)
608 return fd == INVALID_SOCKET ? TRUE : FALSE;
614 * Opens the client side of a Windows named pipe. The connection D-BUS
615 * file descriptor index is returned. It is set up as nonblocking.
617 * @param path the path to named pipe socket
618 * @param error return location for error code
619 * @returns connection D-BUS file descriptor or -1 on error
622 _dbus_connect_named_pipe (const char *path,
625 _dbus_assert_not_reached ("not implemented");
633 _dbus_win_startup_winsock (void)
635 /* Straight from MSDN, deuglified */
637 static dbus_bool_t beenhere = FALSE;
639 WORD wVersionRequested;
646 wVersionRequested = MAKEWORD (2, 0);
648 err = WSAStartup (wVersionRequested, &wsaData);
651 _dbus_assert_not_reached ("Could not initialize WinSock");
655 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
656 * supports versions greater than 2.0 in addition to 2.0, it will
657 * still return 2.0 in wVersion since that is the version we
660 if (LOBYTE (wsaData.wVersion) != 2 ||
661 HIBYTE (wsaData.wVersion) != 0)
663 _dbus_assert_not_reached ("No usable WinSock found");
678 /************************************************************************
682 ************************************************************************/
685 * Measure the message length without terminating nul
687 int _dbus_printf_string_upper_bound (const char *format,
690 /* MSVCRT's vsnprintf semantics are a bit different */
696 bufsize = sizeof (buf);
697 DBUS_VA_COPY (args_copy, args);
698 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
701 while (len == -1) /* try again */
707 p = malloc (bufsize);
712 DBUS_VA_COPY (args_copy, args);
713 len = _vsnprintf (p, bufsize - 1, format, args_copy);
723 * Returns the UTF-16 form of a UTF-8 string. The result should be
724 * freed with dbus_free() when no longer needed.
726 * @param str the UTF-8 string
727 * @param error return location for error code
730 _dbus_win_utf8_to_utf16 (const char *str,
737 _dbus_string_init_const (&s, str);
739 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
741 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
745 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
749 _dbus_win_set_error_from_win_error (error, GetLastError ());
753 retval = dbus_new (wchar_t, n);
757 _DBUS_SET_OOM (error);
761 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
764 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
772 * Returns the UTF-8 form of a UTF-16 string. The result should be
773 * freed with dbus_free() when no longer needed.
775 * @param str the UTF-16 string
776 * @param error return location for error code
779 _dbus_win_utf16_to_utf8 (const wchar_t *str,
785 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
789 _dbus_win_set_error_from_win_error (error, GetLastError ());
793 retval = dbus_malloc (n);
797 _DBUS_SET_OOM (error);
801 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
804 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
816 /************************************************************************
819 ************************************************************************/
822 _dbus_win_account_to_sid (const wchar_t *waccount,
826 dbus_bool_t retval = FALSE;
827 DWORD sid_length, wdomain_length;
835 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
836 NULL, &wdomain_length, &use) &&
837 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
839 _dbus_win_set_error_from_win_error (error, GetLastError ());
843 *ppsid = dbus_malloc (sid_length);
846 _DBUS_SET_OOM (error);
850 wdomain = dbus_new (wchar_t, wdomain_length);
853 _DBUS_SET_OOM (error);
857 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
858 wdomain, &wdomain_length, &use))
860 _dbus_win_set_error_from_win_error (error, GetLastError ());
864 if (!IsValidSid ((PSID) *ppsid))
866 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
884 /** @} end of sysdeps-win */
888 * The only reason this is separate from _dbus_getpid() is to allow it
889 * on Windows for logging but not for other purposes.
891 * @returns process ID to put in log messages
894 _dbus_pid_for_log (void)
896 return _dbus_getpid ();
901 static BOOL is_winxp_sp3_or_lower()
903 OSVERSIONINFOEX osvi;
904 DWORDLONG dwlConditionMask = 0;
905 int op=VER_LESS_EQUAL;
907 // Initialize the OSVERSIONINFOEX structure.
909 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
910 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
911 osvi.dwMajorVersion = 5;
912 osvi.dwMinorVersion = 1;
913 osvi.wServicePackMajor = 3;
914 osvi.wServicePackMinor = 0;
916 // Initialize the condition mask.
918 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
919 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
920 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
921 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
925 return VerifyVersionInfo(
927 VER_MAJORVERSION | VER_MINORVERSION |
928 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
933 * @param sid points to sid buffer, need to be freed with LocalFree()
934 * @param process_id the process id for which the sid should be returned
935 * @returns process sid
938 _dbus_getsid(char **sid, dbus_pid_t process_id)
940 HANDLE process_token = INVALID_HANDLE_VALUE;
941 TOKEN_USER *token_user = NULL;
946 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
948 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
950 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
953 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
954 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
955 || (token_user = alloca (n)) == NULL
956 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
958 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
961 psid = token_user->User.Sid;
962 if (!IsValidSid (psid))
964 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
967 if (!ConvertSidToStringSidA (psid, sid))
969 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
976 CloseHandle (process_handle);
977 if (process_token != INVALID_HANDLE_VALUE)
978 CloseHandle (process_token);
980 _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
985 /************************************************************************
989 ************************************************************************/
992 * Creates a full-duplex pipe (as in socketpair()).
993 * Sets both ends of the pipe nonblocking.
995 * @param fd1 return location for one end
996 * @param fd2 return location for the other end
997 * @param blocking #TRUE if pipe should be blocking
998 * @param error error return
999 * @returns #FALSE on failure (if error is set)
1002 _dbus_full_duplex_pipe (int *fd1,
1004 dbus_bool_t blocking,
1007 SOCKET temp, socket1 = -1, socket2 = -1;
1008 struct sockaddr_in saddr;
1012 _dbus_win_startup_winsock ();
1014 temp = socket (AF_INET, SOCK_STREAM, 0);
1015 if (temp == INVALID_SOCKET)
1017 DBUS_SOCKET_SET_ERRNO ();
1022 saddr.sin_family = AF_INET;
1024 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1026 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1028 DBUS_SOCKET_SET_ERRNO ();
1032 if (listen (temp, 1) == SOCKET_ERROR)
1034 DBUS_SOCKET_SET_ERRNO ();
1038 len = sizeof (saddr);
1039 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1041 DBUS_SOCKET_SET_ERRNO ();
1045 socket1 = socket (AF_INET, SOCK_STREAM, 0);
1046 if (socket1 == INVALID_SOCKET)
1048 DBUS_SOCKET_SET_ERRNO ();
1052 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1054 DBUS_SOCKET_SET_ERRNO ();
1058 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1059 if (socket2 == INVALID_SOCKET)
1061 DBUS_SOCKET_SET_ERRNO ();
1068 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1070 DBUS_SOCKET_SET_ERRNO ();
1075 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1077 DBUS_SOCKET_SET_ERRNO ();
1085 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1086 *fd1, socket1, *fd2, socket2);
1093 closesocket (socket2);
1095 closesocket (socket1);
1099 dbus_set_error (error, _dbus_error_from_errno (errno),
1100 "Could not setup socket pair: %s",
1101 _dbus_strerror_from_errno ());
1107 * Wrapper for poll().
1109 * @param fds the file descriptors to poll
1110 * @param n_fds number of descriptors in the array
1111 * @param timeout_milliseconds timeout or -1 for infinite
1112 * @returns numbers of fds with revents, or <0 on error
1115 _dbus_poll (DBusPollFD *fds,
1117 int timeout_milliseconds)
1119 #define USE_CHRIS_IMPL 0
1123 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1124 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1132 #define DBUS_STACK_WSAEVENTS 256
1133 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1134 WSAEVENT *pEvents = NULL;
1135 if (n_fds > DBUS_STACK_WSAEVENTS)
1136 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1138 pEvents = eventsOnStack;
1141 #ifdef DBUS_ENABLE_VERBOSE_MODE
1143 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1144 for (i = 0; i < n_fds; i++)
1146 DBusPollFD *fdp = &fds[i];
1149 if (fdp->events & _DBUS_POLLIN)
1150 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1152 if (fdp->events & _DBUS_POLLOUT)
1153 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1155 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1157 // FIXME: more robust code for long msg
1158 // create on heap when msg[] becomes too small
1159 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1161 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1165 msgp += sprintf (msgp, "\n");
1166 _dbus_verbose ("%s",msg);
1168 for (i = 0; i < n_fds; i++)
1170 DBusPollFD *fdp = &fds[i];
1172 long lNetworkEvents = FD_OOB;
1174 ev = WSACreateEvent();
1176 if (fdp->events & _DBUS_POLLIN)
1177 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1179 if (fdp->events & _DBUS_POLLOUT)
1180 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1182 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1188 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1190 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1192 DBUS_SOCKET_SET_ERRNO ();
1193 if (errno != WSAEWOULDBLOCK)
1194 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1197 else if (ready == WSA_WAIT_TIMEOUT)
1199 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1202 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1205 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1207 for (i = 0; i < n_fds; i++)
1209 DBusPollFD *fdp = &fds[i];
1210 WSANETWORKEVENTS ne;
1214 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1216 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1217 fdp->revents |= _DBUS_POLLIN;
1219 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1220 fdp->revents |= _DBUS_POLLOUT;
1222 if (ne.lNetworkEvents & (FD_OOB))
1223 fdp->revents |= _DBUS_POLLERR;
1225 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1226 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1228 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1229 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1231 if (ne.lNetworkEvents & (FD_OOB))
1232 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1234 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1236 if(ne.lNetworkEvents)
1239 WSAEventSelect(fdp->fd, pEvents[i], 0);
1242 msgp += sprintf (msgp, "\n");
1243 _dbus_verbose ("%s",msg);
1247 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1251 for(i = 0; i < n_fds; i++)
1253 WSACloseEvent(pEvents[i]);
1256 if (n_fds > DBUS_STACK_WSAEVENTS)
1261 #else /* USE_CHRIS_IMPL */
1263 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1264 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1267 fd_set read_set, write_set, err_set;
1273 FD_ZERO (&read_set);
1274 FD_ZERO (&write_set);
1278 #ifdef DBUS_ENABLE_VERBOSE_MODE
1280 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1281 for (i = 0; i < n_fds; i++)
1283 DBusPollFD *fdp = &fds[i];
1286 if (fdp->events & _DBUS_POLLIN)
1287 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1289 if (fdp->events & _DBUS_POLLOUT)
1290 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1292 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1294 // FIXME: more robust code for long msg
1295 // create on heap when msg[] becomes too small
1296 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1298 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1302 msgp += sprintf (msgp, "\n");
1303 _dbus_verbose ("%s",msg);
1305 for (i = 0; i < n_fds; i++)
1307 DBusPollFD *fdp = &fds[i];
1309 if (fdp->events & _DBUS_POLLIN)
1310 FD_SET (fdp->fd, &read_set);
1312 if (fdp->events & _DBUS_POLLOUT)
1313 FD_SET (fdp->fd, &write_set);
1315 FD_SET (fdp->fd, &err_set);
1317 max_fd = MAX (max_fd, fdp->fd);
1320 // Avoid random lockups with send(), for lack of a better solution so far
1321 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1322 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1324 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1326 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1328 DBUS_SOCKET_SET_ERRNO ();
1329 if (errno != WSAEWOULDBLOCK)
1330 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1332 else if (ready == 0)
1333 _dbus_verbose ("select: = 0\n");
1337 #ifdef DBUS_ENABLE_VERBOSE_MODE
1339 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1341 for (i = 0; i < n_fds; i++)
1343 DBusPollFD *fdp = &fds[i];
1345 if (FD_ISSET (fdp->fd, &read_set))
1346 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1348 if (FD_ISSET (fdp->fd, &write_set))
1349 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1351 if (FD_ISSET (fdp->fd, &err_set))
1352 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1354 msgp += sprintf (msgp, "\n");
1355 _dbus_verbose ("%s",msg);
1358 for (i = 0; i < n_fds; i++)
1360 DBusPollFD *fdp = &fds[i];
1364 if (FD_ISSET (fdp->fd, &read_set))
1365 fdp->revents |= _DBUS_POLLIN;
1367 if (FD_ISSET (fdp->fd, &write_set))
1368 fdp->revents |= _DBUS_POLLOUT;
1370 if (FD_ISSET (fdp->fd, &err_set))
1371 fdp->revents |= _DBUS_POLLERR;
1375 #endif /* USE_CHRIS_IMPL */
1381 /******************************************************************************
1383 Original CVS version of dbus-sysdeps.c
1385 ******************************************************************************/
1386 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1387 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1389 * Copyright (C) 2002, 2003 Red Hat, Inc.
1390 * Copyright (C) 2003 CodeFactory AB
1391 * Copyright (C) 2005 Novell, Inc.
1393 * Licensed under the Academic Free License version 2.1
1395 * This program is free software; you can redistribute it and/or modify
1396 * it under the terms of the GNU General Public License as published by
1397 * the Free Software Foundation; either version 2 of the License, or
1398 * (at your option) any later version.
1400 * This program is distributed in the hope that it will be useful,
1401 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1402 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1403 * GNU General Public License for more details.
1405 * You should have received a copy of the GNU General Public License
1406 * along with this program; if not, write to the Free Software
1407 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1413 * Exit the process, returning the given value.
1415 * @param code the exit code
1418 _dbus_exit (int code)
1424 * Creates a socket and connects to a socket at the given host
1425 * and port. The connection fd is returned, and is set up as
1428 * @param host the host name to connect to
1429 * @param port the port to connect to
1430 * @param family the address family to listen on, NULL for all
1431 * @param error return location for error code
1432 * @returns connection file descriptor or -1 on error
1435 _dbus_connect_tcp_socket (const char *host,
1440 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1444 _dbus_connect_tcp_socket_with_nonce (const char *host,
1447 const char *noncefile,
1451 struct addrinfo hints;
1452 struct addrinfo *ai, *tmp;
1454 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1456 _dbus_win_startup_winsock ();
1461 hints.ai_family = AF_UNSPEC;
1462 else if (!strcmp(family, "ipv4"))
1463 hints.ai_family = AF_INET;
1464 else if (!strcmp(family, "ipv6"))
1465 hints.ai_family = AF_INET6;
1468 dbus_set_error (error,
1469 DBUS_ERROR_INVALID_ARGS,
1470 "Unknown address family %s", family);
1473 hints.ai_protocol = IPPROTO_TCP;
1474 hints.ai_socktype = SOCK_STREAM;
1475 #ifdef AI_ADDRCONFIG
1476 hints.ai_flags = AI_ADDRCONFIG;
1481 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1483 dbus_set_error (error,
1484 _dbus_error_from_errno (res),
1485 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1486 host, port, _dbus_strerror(res), res);
1493 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1495 DBUS_SOCKET_SET_ERRNO ();
1496 dbus_set_error (error,
1497 _dbus_error_from_errno (errno),
1498 "Failed to open socket: %s",
1499 _dbus_strerror_from_errno ());
1503 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1505 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1507 DBUS_SOCKET_SET_ERRNO ();
1520 dbus_set_error (error,
1521 _dbus_error_from_errno (errno),
1522 "Failed to connect to socket \"%s:%s\" %s",
1523 host, port, _dbus_strerror_from_errno ());
1527 if (noncefile != NULL)
1529 DBusString noncefileStr;
1531 if (!_dbus_string_init (&noncefileStr) ||
1532 !_dbus_string_append(&noncefileStr, noncefile))
1535 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1539 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1541 _dbus_string_free (&noncefileStr);
1550 _dbus_fd_set_close_on_exec (fd);
1552 if (!_dbus_set_fd_nonblocking (fd, error))
1562 * Creates a socket and binds it to the given path, then listens on
1563 * the socket. The socket is set to be nonblocking. In case of port=0
1564 * a random free port is used and returned in the port parameter.
1565 * If inaddr_any is specified, the hostname is ignored.
1567 * @param host the host name to listen on
1568 * @param port the port to listen on, if zero a free port will be used
1569 * @param family the address family to listen on, NULL for all
1570 * @param retport string to return the actual port listened on
1571 * @param fds_p location to store returned file descriptors
1572 * @param error return location for errors
1573 * @returns the number of listening file descriptors or -1 on error
1577 _dbus_listen_tcp_socket (const char *host,
1580 DBusString *retport,
1584 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1585 struct addrinfo hints;
1586 struct addrinfo *ai, *tmp;
1588 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1589 //That's required for family == IPv6(which is the default on Vista if family is not given)
1590 //So we use our own union instead of sockaddr_gen:
1593 struct sockaddr Address;
1594 struct sockaddr_in AddressIn;
1595 struct sockaddr_in6 AddressIn6;
1599 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1601 _dbus_win_startup_winsock ();
1606 hints.ai_family = AF_UNSPEC;
1607 else if (!strcmp(family, "ipv4"))
1608 hints.ai_family = AF_INET;
1609 else if (!strcmp(family, "ipv6"))
1610 hints.ai_family = AF_INET6;
1613 dbus_set_error (error,
1614 DBUS_ERROR_INVALID_ARGS,
1615 "Unknown address family %s", family);
1619 hints.ai_protocol = IPPROTO_TCP;
1620 hints.ai_socktype = SOCK_STREAM;
1621 #ifdef AI_ADDRCONFIG
1622 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1624 hints.ai_flags = AI_PASSIVE;
1627 redo_lookup_with_port:
1628 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1630 dbus_set_error (error,
1631 _dbus_error_from_errno (res),
1632 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1633 host ? host : "*", port, _dbus_strerror(res), res);
1640 int fd = -1, *newlisten_fd;
1641 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1643 DBUS_SOCKET_SET_ERRNO ();
1644 dbus_set_error (error,
1645 _dbus_error_from_errno (errno),
1646 "Failed to open socket: %s",
1647 _dbus_strerror_from_errno ());
1650 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1652 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1654 DBUS_SOCKET_SET_ERRNO ();
1655 dbus_set_error (error, _dbus_error_from_errno (errno),
1656 "Failed to bind socket \"%s:%s\": %s",
1657 host ? host : "*", port, _dbus_strerror_from_errno ());
1662 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1664 DBUS_SOCKET_SET_ERRNO ();
1665 dbus_set_error (error, _dbus_error_from_errno (errno),
1666 "Failed to listen on socket \"%s:%s\": %s",
1667 host ? host : "*", port, _dbus_strerror_from_errno ());
1672 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1676 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1677 "Failed to allocate file handle array");
1680 listen_fd = newlisten_fd;
1681 listen_fd[nlisten_fd] = fd;
1684 if (!_dbus_string_get_length(retport))
1686 /* If the user didn't specify a port, or used 0, then
1687 the kernel chooses a port. After the first address
1688 is bound to, we need to force all remaining addresses
1689 to use the same port */
1690 if (!port || !strcmp(port, "0"))
1692 mysockaddr_gen addr;
1693 socklen_t addrlen = sizeof(addr);
1696 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1698 DBUS_SOCKET_SET_ERRNO ();
1699 dbus_set_error (error, _dbus_error_from_errno (errno),
1700 "Failed to resolve port \"%s:%s\": %s",
1701 host ? host : "*", port, _dbus_strerror_from_errno());
1704 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1705 if (!_dbus_string_append(retport, portbuf))
1707 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1711 /* Release current address list & redo lookup */
1712 port = _dbus_string_get_const_data(retport);
1714 goto redo_lookup_with_port;
1718 if (!_dbus_string_append(retport, port))
1720 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1733 _dbus_win_set_errno (WSAEADDRINUSE);
1734 dbus_set_error (error, _dbus_error_from_errno (errno),
1735 "Failed to bind socket \"%s:%s\": %s",
1736 host ? host : "*", port, _dbus_strerror_from_errno ());
1740 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1742 for (i = 0 ; i < nlisten_fd ; i++)
1744 _dbus_fd_set_close_on_exec (listen_fd[i]);
1745 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1758 for (i = 0 ; i < nlisten_fd ; i++)
1759 closesocket (listen_fd[i]);
1760 dbus_free(listen_fd);
1766 * Accepts a connection on a listening socket.
1767 * Handles EINTR for you.
1769 * @param listen_fd the listen file descriptor
1770 * @returns the connection fd of the client, or -1 on error
1773 _dbus_accept (int listen_fd)
1778 client_fd = accept (listen_fd, NULL, NULL);
1780 if (DBUS_SOCKET_IS_INVALID (client_fd))
1782 DBUS_SOCKET_SET_ERRNO ();
1787 _dbus_verbose ("client fd %d accepted\n", client_fd);
1796 _dbus_send_credentials_socket (int handle,
1799 /* FIXME: for the session bus credentials shouldn't matter (?), but
1800 * for the system bus they are presumably essential. A rough outline
1801 * of a way to implement the credential transfer would be this:
1803 * client waits to *read* a byte.
1805 * server creates a named pipe with a random name, sends a byte
1806 * contining its length, and its name.
1808 * client reads the name, connects to it (using Win32 API).
1810 * server waits for connection to the named pipe, then calls
1811 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1812 * calls RevertToSelf(), closes its handles to the named pipe, and
1813 * is done. (Maybe there is some other way to get the SID of a named
1814 * pipe client without having to use impersonation?)
1816 * client closes its handles and is done.
1818 * Ralf: Why not sending credentials over the given this connection ?
1819 * Using named pipes makes it impossible to be connected from a unix client.
1825 _dbus_string_init_const_len (&buf, "\0", 1);
1827 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1829 if (bytes_written < 0 && errno == EINTR)
1832 if (bytes_written < 0)
1834 dbus_set_error (error, _dbus_error_from_errno (errno),
1835 "Failed to write credentials byte: %s",
1836 _dbus_strerror_from_errno ());
1839 else if (bytes_written == 0)
1841 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1842 "wrote zero bytes writing credentials byte");
1847 _dbus_assert (bytes_written == 1);
1848 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1855 * Reads a single byte which must be nul (an error occurs otherwise),
1856 * and reads unix credentials if available. Fills in pid/uid/gid with
1857 * -1 if no credentials are available. Return value indicates whether
1858 * a byte was read, not whether we got valid credentials. On some
1859 * systems, such as Linux, reading/writing the byte isn't actually
1860 * required, but we do it anyway just to avoid multiple codepaths.
1862 * Fails if no byte is available, so you must select() first.
1864 * The point of the byte is that on some systems we have to
1865 * use sendmsg()/recvmsg() to transmit credentials.
1867 * @param client_fd the client file descriptor
1868 * @param credentials struct to fill with credentials of client
1869 * @param error location to store error code
1870 * @returns #TRUE on success
1873 _dbus_read_credentials_socket (int handle,
1874 DBusCredentials *credentials,
1884 // could fail due too OOM
1885 if (_dbus_string_init (&buf))
1887 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1890 _dbus_verbose ("got one zero byte from server\n");
1892 _dbus_string_free (&buf);
1895 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1899 _dbus_credentials_add_pid (credentials, pid);
1901 if (_dbus_getsid (&sid, pid))
1903 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1917 * Checks to make sure the given directory is
1918 * private to the user
1920 * @param dir the name of the directory
1921 * @param error error return
1922 * @returns #FALSE on failure
1925 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1928 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1934 * Appends the given filename to the given directory.
1936 * @todo it might be cute to collapse multiple '/' such as "foo//"
1939 * @param dir the directory name
1940 * @param next_component the filename
1941 * @returns #TRUE on success
1944 _dbus_concat_dir_and_file (DBusString *dir,
1945 const DBusString *next_component)
1947 dbus_bool_t dir_ends_in_slash;
1948 dbus_bool_t file_starts_with_slash;
1950 if (_dbus_string_get_length (dir) == 0 ||
1951 _dbus_string_get_length (next_component) == 0)
1955 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1956 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1958 file_starts_with_slash =
1959 ('/' == _dbus_string_get_byte (next_component, 0) ||
1960 '\\' == _dbus_string_get_byte (next_component, 0));
1962 if (dir_ends_in_slash && file_starts_with_slash)
1964 _dbus_string_shorten (dir, 1);
1966 else if (!(dir_ends_in_slash || file_starts_with_slash))
1968 if (!_dbus_string_append_byte (dir, '\\'))
1972 return _dbus_string_copy (next_component, 0, dir,
1973 _dbus_string_get_length (dir));
1976 /*---------------- DBusCredentials ----------------------------------*/
1979 * Adds the credentials corresponding to the given username.
1981 * @param credentials credentials to fill in
1982 * @param username the username
1983 * @returns #TRUE if the username existed and we got some credentials
1986 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1987 const DBusString *username)
1989 return _dbus_credentials_add_windows_sid (credentials,
1990 _dbus_string_get_const_data(username));
1994 * Adds the credentials of the current process to the
1995 * passed-in credentials object.
1997 * @param credentials credentials to add to
1998 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
2002 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
2004 dbus_bool_t retval = FALSE;
2007 if (!_dbus_getsid(&sid, _dbus_getpid()))
2010 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2013 if (!_dbus_credentials_add_windows_sid (credentials,sid))
2028 * Append to the string the identity we would like to have when we
2029 * authenticate, on UNIX this is the current process UID and on
2030 * Windows something else, probably a Windows SID string. No escaping
2031 * is required, that is done in dbus-auth.c. The username here
2032 * need not be anything human-readable, it can be the machine-readable
2033 * form i.e. a user id.
2035 * @param str the string to append to
2036 * @returns #FALSE on no memory
2037 * @todo to which class belongs this
2040 _dbus_append_user_from_current_process (DBusString *str)
2042 dbus_bool_t retval = FALSE;
2045 if (!_dbus_getsid(&sid, _dbus_getpid()))
2048 retval = _dbus_string_append (str,sid);
2055 * Gets our process ID
2056 * @returns process ID
2061 return GetCurrentProcessId ();
2064 /** nanoseconds in a second */
2065 #define NANOSECONDS_PER_SECOND 1000000000
2066 /** microseconds in a second */
2067 #define MICROSECONDS_PER_SECOND 1000000
2068 /** milliseconds in a second */
2069 #define MILLISECONDS_PER_SECOND 1000
2070 /** nanoseconds in a millisecond */
2071 #define NANOSECONDS_PER_MILLISECOND 1000000
2072 /** microseconds in a millisecond */
2073 #define MICROSECONDS_PER_MILLISECOND 1000
2076 * Sleeps the given number of milliseconds.
2077 * @param milliseconds number of milliseconds
2080 _dbus_sleep_milliseconds (int milliseconds)
2082 Sleep (milliseconds);
2087 * Get current time, as in gettimeofday(). Never uses the monotonic
2090 * @param tv_sec return location for number of seconds
2091 * @param tv_usec return location for number of microseconds
2094 _dbus_get_real_time (long *tv_sec,
2098 dbus_uint64_t time64;
2100 GetSystemTimeAsFileTime (&ft);
2102 memcpy (&time64, &ft, sizeof (time64));
2104 /* Convert from 100s of nanoseconds since 1601-01-01
2105 * to Unix epoch. Yes, this is Y2038 unsafe.
2107 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2111 *tv_sec = time64 / 1000000;
2114 *tv_usec = time64 % 1000000;
2118 * Get current time, as in gettimeofday(). Use the monotonic clock if
2119 * available, to avoid problems when the system time changes.
2121 * @param tv_sec return location for number of seconds
2122 * @param tv_usec return location for number of microseconds
2125 _dbus_get_monotonic_time (long *tv_sec,
2128 /* no implementation yet, fall back to wall-clock time */
2129 _dbus_get_real_time (tv_sec, tv_usec);
2133 * signal (SIGPIPE, SIG_IGN);
2136 _dbus_disable_sigpipe (void)
2141 * Creates a directory; succeeds if the directory
2142 * is created or already existed.
2144 * @param filename directory filename
2145 * @param error initialized error object
2146 * @returns #TRUE on success
2149 _dbus_create_directory (const DBusString *filename,
2152 const char *filename_c;
2154 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2156 filename_c = _dbus_string_get_const_data (filename);
2158 if (!CreateDirectoryA (filename_c, NULL))
2160 if (GetLastError () == ERROR_ALREADY_EXISTS)
2163 dbus_set_error (error, DBUS_ERROR_FAILED,
2164 "Failed to create directory %s: %s\n",
2165 filename_c, _dbus_strerror_from_errno ());
2174 * Generates the given number of random bytes,
2175 * using the best mechanism we can come up with.
2177 * @param str the string
2178 * @param n_bytes the number of random bytes to append to string
2179 * @returns #TRUE on success, #FALSE if no memory
2182 _dbus_generate_random_bytes (DBusString *str,
2189 old_len = _dbus_string_get_length (str);
2191 if (!_dbus_string_lengthen (str, n_bytes))
2194 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2196 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2199 if (!CryptGenRandom (hprov, n_bytes, p))
2201 CryptReleaseContext (hprov, 0);
2205 CryptReleaseContext (hprov, 0);
2211 * Gets the temporary files directory by inspecting the environment variables
2212 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2214 * @returns location of temp directory
2217 _dbus_get_tmpdir(void)
2219 static const char* tmpdir = NULL;
2220 static char buf[1000];
2226 if (!GetTempPathA (sizeof (buf), buf))
2228 _dbus_warn ("GetTempPath failed\n");
2232 /* Drop terminating backslash or slash */
2233 last_slash = _mbsrchr (buf, '\\');
2234 if (last_slash > buf && last_slash[1] == '\0')
2235 last_slash[0] = '\0';
2236 last_slash = _mbsrchr (buf, '/');
2237 if (last_slash > buf && last_slash[1] == '\0')
2238 last_slash[0] = '\0';
2243 _dbus_assert(tmpdir != NULL);
2250 * Deletes the given file.
2252 * @param filename the filename
2253 * @param error error location
2255 * @returns #TRUE if unlink() succeeded
2258 _dbus_delete_file (const DBusString *filename,
2261 const char *filename_c;
2263 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2265 filename_c = _dbus_string_get_const_data (filename);
2267 if (DeleteFileA (filename_c) == 0)
2269 dbus_set_error (error, DBUS_ERROR_FAILED,
2270 "Failed to delete file %s: %s\n",
2271 filename_c, _dbus_strerror_from_errno ());
2279 * replaces the term DBUS_PREFIX in configure_time_path by the
2280 * current dbus installation directory. On unix this function is a noop
2282 * @param configure_time_path
2286 _dbus_replace_install_prefix (const char *configure_time_path)
2289 return configure_time_path;
2291 static char retval[1000];
2292 static char runtime_prefix[1000];
2296 if (!configure_time_path)
2299 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2300 strncmp (configure_time_path, DBUS_PREFIX "/",
2301 strlen (DBUS_PREFIX) + 1))) {
2302 strcat (retval, configure_time_path);
2306 strcpy (retval, runtime_prefix);
2307 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2309 /* Somehow, in some situations, backslashes get collapsed in the string.
2310 * Since windows C library accepts both forward and backslashes as
2311 * path separators, convert all backslashes to forward slashes.
2314 for(i = 0; retval[i] != '\0'; i++) {
2315 if(retval[i] == '\\')
2322 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2324 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2334 * Backtrace Generator
2336 * Copyright 2004 Eric Poech
2337 * Copyright 2004 Robert Shearman
2339 * This library is free software; you can redistribute it and/or
2340 * modify it under the terms of the GNU Lesser General Public
2341 * License as published by the Free Software Foundation; either
2342 * version 2.1 of the License, or (at your option) any later version.
2344 * This library is distributed in the hope that it will be useful,
2345 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2346 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2347 * Lesser General Public License for more details.
2349 * You should have received a copy of the GNU Lesser General Public
2350 * License along with this library; if not, write to the Free Software
2351 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2355 #include <imagehlp.h>
2358 #define DPRINTF _dbus_warn
2366 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2368 //MAKE_FUNCPTR(StackWalk);
2369 //MAKE_FUNCPTR(SymGetModuleBase);
2370 //MAKE_FUNCPTR(SymFunctionTableAccess);
2371 //MAKE_FUNCPTR(SymInitialize);
2372 //MAKE_FUNCPTR(SymGetSymFromAddr);
2373 //MAKE_FUNCPTR(SymGetModuleInfo);
2374 static BOOL (WINAPI *pStackWalk)(
2378 LPSTACKFRAME StackFrame,
2379 PVOID ContextRecord,
2380 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2381 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2382 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2383 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2386 static DWORD64 (WINAPI *pSymGetModuleBase)(
2390 static PVOID (WINAPI *pSymFunctionTableAccess)(
2395 static DWORD (WINAPI *pSymGetModuleBase)(
2399 static PVOID (WINAPI *pSymFunctionTableAccess)(
2404 static BOOL (WINAPI *pSymInitialize)(
2406 PSTR UserSearchPath,
2409 static BOOL (WINAPI *pSymGetSymFromAddr)(
2412 PDWORD Displacement,
2413 PIMAGEHLP_SYMBOL Symbol
2415 static BOOL (WINAPI *pSymGetModuleInfo)(
2418 PIMAGEHLP_MODULE ModuleInfo
2420 static DWORD (WINAPI *pSymSetOptions)(
2425 static BOOL init_backtrace()
2427 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2429 #define GETFUNC(x) \
2430 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2438 // GETFUNC(StackWalk);
2439 // GETFUNC(SymGetModuleBase);
2440 // GETFUNC(SymFunctionTableAccess);
2441 // GETFUNC(SymInitialize);
2442 // GETFUNC(SymGetSymFromAddr);
2443 // GETFUNC(SymGetModuleInfo);
2447 pStackWalk = (BOOL (WINAPI *)(
2451 LPSTACKFRAME StackFrame,
2452 PVOID ContextRecord,
2453 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2454 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2455 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2456 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2457 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2459 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2462 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2463 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2466 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2468 pSymGetModuleBase=(DWORD (WINAPI *)(
2471 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2472 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2475 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2477 pSymInitialize = (BOOL (WINAPI *)(
2479 PSTR UserSearchPath,
2481 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2482 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2485 PDWORD Displacement,
2486 PIMAGEHLP_SYMBOL Symbol
2487 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2488 pSymGetModuleInfo = (BOOL (WINAPI *)(
2491 PIMAGEHLP_MODULE ModuleInfo
2492 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2493 pSymSetOptions = (DWORD (WINAPI *)(
2495 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2498 pSymSetOptions(SYMOPT_UNDNAME);
2500 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2505 static void dump_backtrace_for_thread(HANDLE hThread)
2512 if (!init_backtrace())
2515 /* can't use this function for current thread as GetThreadContext
2516 * doesn't support getting context from current thread */
2517 if (hThread == GetCurrentThread())
2520 DPRINTF("Backtrace:\n");
2522 _DBUS_ZERO(context);
2523 context.ContextFlags = CONTEXT_FULL;
2525 SuspendThread(hThread);
2527 if (!GetThreadContext(hThread, &context))
2529 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2530 ResumeThread(hThread);
2537 sf.AddrFrame.Offset = context.Ebp;
2538 sf.AddrFrame.Mode = AddrModeFlat;
2539 sf.AddrPC.Offset = context.Eip;
2540 sf.AddrPC.Mode = AddrModeFlat;
2541 dwImageType = IMAGE_FILE_MACHINE_I386;
2543 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2544 sf.AddrPC.Offset = context.Rip;
2545 sf.AddrPC.Mode = AddrModeFlat;
2546 sf.AddrFrame.Offset = context.Rsp;
2547 sf.AddrFrame.Mode = AddrModeFlat;
2548 sf.AddrStack.Offset = context.Rsp;
2549 sf.AddrStack.Mode = AddrModeFlat;
2551 dwImageType = IMAGE_FILE_MACHINE_IA64;
2552 sf.AddrPC.Offset = context.StIIP;
2553 sf.AddrPC.Mode = AddrModeFlat;
2554 sf.AddrFrame.Offset = context.IntSp;
2555 sf.AddrFrame.Mode = AddrModeFlat;
2556 sf.AddrBStore.Offset= context.RsBSP;
2557 sf.AddrBStore.Mode = AddrModeFlat;
2558 sf.AddrStack.Offset = context.IntSp;
2559 sf.AddrStack.Mode = AddrModeFlat;
2561 # error You need to fill in the STACKFRAME structure for your architecture
2564 while (pStackWalk(dwImageType, GetCurrentProcess(),
2565 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2566 pSymGetModuleBase, NULL))
2569 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2570 DWORD dwDisplacement;
2572 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2573 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2575 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2576 &dwDisplacement, pSymbol))
2578 IMAGEHLP_MODULE ModuleInfo;
2579 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2581 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2583 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2585 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2586 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2588 else if (dwDisplacement)
2589 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2591 DPRINTF("4\t%s\n", pSymbol->Name);
2594 ResumeThread(hThread);
2597 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2599 dump_backtrace_for_thread((HANDLE)lpParameter);
2603 /* cannot get valid context from current thread, so we have to execute
2604 * backtrace from another thread */
2605 static void dump_backtrace()
2607 HANDLE hCurrentThread;
2610 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2611 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2612 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2614 WaitForSingleObject(hThread, INFINITE);
2615 CloseHandle(hThread);
2616 CloseHandle(hCurrentThread);
2619 #endif /* asserts or tests enabled */
2622 void _dbus_print_backtrace(void)
2628 void _dbus_print_backtrace(void)
2630 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2634 static dbus_uint32_t fromAscii(char ascii)
2636 if(ascii >= '0' && ascii <= '9')
2638 if(ascii >= 'A' && ascii <= 'F')
2639 return ascii - 'A' + 10;
2640 if(ascii >= 'a' && ascii <= 'f')
2641 return ascii - 'a' + 10;
2645 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2646 dbus_bool_t create_if_not_found,
2653 HW_PROFILE_INFOA info;
2654 char *lpc = &info.szHwProfileGuid[0];
2657 // the hw-profile guid lives long enough
2658 if(!GetCurrentHwProfileA(&info))
2660 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2664 // Form: {12340001-4980-1920-6788-123456789012}
2667 u = ((fromAscii(lpc[0]) << 0) |
2668 (fromAscii(lpc[1]) << 4) |
2669 (fromAscii(lpc[2]) << 8) |
2670 (fromAscii(lpc[3]) << 12) |
2671 (fromAscii(lpc[4]) << 16) |
2672 (fromAscii(lpc[5]) << 20) |
2673 (fromAscii(lpc[6]) << 24) |
2674 (fromAscii(lpc[7]) << 28));
2675 machine_id->as_uint32s[0] = u;
2679 u = ((fromAscii(lpc[0]) << 0) |
2680 (fromAscii(lpc[1]) << 4) |
2681 (fromAscii(lpc[2]) << 8) |
2682 (fromAscii(lpc[3]) << 12) |
2683 (fromAscii(lpc[5]) << 16) |
2684 (fromAscii(lpc[6]) << 20) |
2685 (fromAscii(lpc[7]) << 24) |
2686 (fromAscii(lpc[8]) << 28));
2687 machine_id->as_uint32s[1] = u;
2691 u = ((fromAscii(lpc[0]) << 0) |
2692 (fromAscii(lpc[1]) << 4) |
2693 (fromAscii(lpc[2]) << 8) |
2694 (fromAscii(lpc[3]) << 12) |
2695 (fromAscii(lpc[5]) << 16) |
2696 (fromAscii(lpc[6]) << 20) |
2697 (fromAscii(lpc[7]) << 24) |
2698 (fromAscii(lpc[8]) << 28));
2699 machine_id->as_uint32s[2] = u;
2703 u = ((fromAscii(lpc[0]) << 0) |
2704 (fromAscii(lpc[1]) << 4) |
2705 (fromAscii(lpc[2]) << 8) |
2706 (fromAscii(lpc[3]) << 12) |
2707 (fromAscii(lpc[4]) << 16) |
2708 (fromAscii(lpc[5]) << 20) |
2709 (fromAscii(lpc[6]) << 24) |
2710 (fromAscii(lpc[7]) << 28));
2711 machine_id->as_uint32s[3] = u;
2717 HANDLE _dbus_global_lock (const char *mutexname)
2722 mutex = CreateMutexA( NULL, FALSE, mutexname );
2728 gotMutex = WaitForSingleObject( mutex, INFINITE );
2731 case WAIT_ABANDONED:
2732 ReleaseMutex (mutex);
2733 CloseHandle (mutex);
2744 void _dbus_global_unlock (HANDLE mutex)
2746 ReleaseMutex (mutex);
2747 CloseHandle (mutex);
2750 // for proper cleanup in dbus-daemon
2751 static HANDLE hDBusDaemonMutex = NULL;
2752 static HANDLE hDBusSharedMem = NULL;
2753 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2754 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2755 // sync _dbus_get_autolaunch_address
2756 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2757 // mutex to determine if dbus-daemon is already started (per user)
2758 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2759 // named shm for dbus adress info (per user)
2760 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2763 _dbus_get_install_root_as_hash(DBusString *out)
2765 DBusString install_path;
2767 char path[MAX_PATH*2];
2768 int path_size = sizeof(path);
2770 if (!_dbus_get_install_root(path,path_size))
2773 _dbus_string_init(&install_path);
2774 _dbus_string_append(&install_path,path);
2776 _dbus_string_init(out);
2777 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2779 if (!_dbus_sha_compute (&install_path, out))
2786 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2788 _dbus_string_init(out);
2789 _dbus_string_append(out,basestring);
2795 else if (strcmp(scope,"*install-path") == 0
2796 // for 1.3 compatibility
2797 || strcmp(scope,"install-path") == 0)
2800 if (!_dbus_get_install_root_as_hash(&temp))
2802 _dbus_string_free(out);
2805 _dbus_string_append(out,"-");
2806 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2807 _dbus_string_free(&temp);
2809 else if (strcmp(scope,"*user") == 0)
2811 _dbus_string_append(out,"-");
2812 if (!_dbus_append_user_from_current_process(out))
2814 _dbus_string_free(out);
2818 else if (strlen(scope) > 0)
2820 _dbus_string_append(out,"-");
2821 _dbus_string_append(out,scope);
2828 _dbus_get_shm_name (DBusString *out,const char *scope)
2830 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2834 _dbus_get_mutex_name (DBusString *out,const char *scope)
2836 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2840 _dbus_daemon_is_session_bus_address_published (const char *scope)
2843 DBusString mutex_name;
2845 if (!_dbus_get_mutex_name(&mutex_name,scope))
2847 _dbus_string_free( &mutex_name );
2851 if (hDBusDaemonMutex)
2854 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2855 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2857 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2858 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2859 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2861 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2862 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2865 _dbus_global_unlock( lock );
2867 _dbus_string_free( &mutex_name );
2869 if (hDBusDaemonMutex == NULL)
2871 if (GetLastError() == ERROR_ALREADY_EXISTS)
2873 CloseHandle(hDBusDaemonMutex);
2874 hDBusDaemonMutex = NULL;
2877 // mutex wasn't created before, so return false.
2878 // We leave the mutex name allocated for later reusage
2879 // in _dbus_daemon_publish_session_bus_address.
2884 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2887 char *shared_addr = NULL;
2888 DBusString shm_name;
2889 DBusString mutex_name;
2891 _dbus_assert (address);
2893 if (!_dbus_get_mutex_name(&mutex_name,scope))
2895 _dbus_string_free( &mutex_name );
2899 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2900 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2902 if (!hDBusDaemonMutex)
2904 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2906 _dbus_string_free( &mutex_name );
2908 // acquire the mutex
2909 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2911 _dbus_global_unlock( lock );
2912 CloseHandle( hDBusDaemonMutex );
2916 if (!_dbus_get_shm_name(&shm_name,scope))
2918 _dbus_string_free( &shm_name );
2919 _dbus_global_unlock( lock );
2924 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2925 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2926 _dbus_assert( hDBusSharedMem );
2928 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2930 _dbus_assert (shared_addr);
2932 strcpy( shared_addr, address);
2935 UnmapViewOfFile( shared_addr );
2937 _dbus_global_unlock( lock );
2938 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2940 _dbus_string_free( &shm_name );
2945 _dbus_daemon_unpublish_session_bus_address (void)
2949 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2950 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2952 CloseHandle( hDBusSharedMem );
2954 hDBusSharedMem = NULL;
2956 ReleaseMutex( hDBusDaemonMutex );
2958 CloseHandle( hDBusDaemonMutex );
2960 hDBusDaemonMutex = NULL;
2962 _dbus_global_unlock( lock );
2966 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2974 // we know that dbus-daemon is available, so we wait until shm is available
2975 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2976 if( sharedMem == 0 )
2978 if ( sharedMem != 0)
2982 if( sharedMem == 0 )
2985 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2990 _dbus_string_init( address );
2992 _dbus_string_append( address, shared_addr );
2995 UnmapViewOfFile( shared_addr );
2997 CloseHandle( sharedMem );
3003 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
3007 DBusString mutex_name;
3008 dbus_bool_t bRet = TRUE;
3010 if (!_dbus_get_mutex_name(&mutex_name,scope))
3012 _dbus_string_free( &mutex_name );
3016 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3017 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3020 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3021 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3023 ReleaseMutex (daemon);
3024 CloseHandle (daemon);
3026 _dbus_global_unlock( lock );
3027 _dbus_string_free( &mutex_name );
3032 bRet = _dbus_get_autolaunch_shm( address, shm_name );
3035 CloseHandle ( daemon );
3037 _dbus_global_unlock( lock );
3038 _dbus_string_free( &mutex_name );
3044 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3049 PROCESS_INFORMATION pi;
3050 dbus_bool_t retval = FALSE;
3052 char dbus_exe_path[MAX_PATH];
3053 char dbus_args[MAX_PATH * 2];
3054 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3055 DBusString shm_name;
3057 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3059 if (!_dbus_get_shm_name(&shm_name,scope))
3061 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3065 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3067 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3069 _dbus_verbose( "found running dbus daemon at %s\n",
3070 _dbus_string_get_const_data (&shm_name) );
3075 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3077 // Look in directory containing dbus shared library
3079 char dbus_module_path[MAX_PATH];
3082 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3083 "trying path where dbus shared library is located");
3085 hmod = _dbus_win_get_dll_hmodule();
3086 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3089 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3095 char *ext_idx = strrchr(dbus_module_path, '\\');
3098 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3100 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3102 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3103 printf ("or start the daemon manually\n\n");
3106 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3112 ZeroMemory( &si, sizeof(si) );
3114 ZeroMemory( &pi, sizeof(pi) );
3116 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3118 // argv[i] = "--config-file=bus\\session.conf";
3119 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3120 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3122 CloseHandle (pi.hThread);
3123 CloseHandle (pi.hProcess);
3124 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3125 if (retval == FALSE)
3126 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3130 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3136 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3138 _DBUS_ASSERT_ERROR_IS_SET (error);
3140 _dbus_global_unlock (mutex);
3146 /** Makes the file readable by every user in the system.
3148 * @param filename the filename
3149 * @param error error location
3150 * @returns #TRUE if the file's permissions could be changed.
3153 _dbus_make_file_world_readable(const DBusString *filename,
3161 * return the relocated DATADIR
3163 * @returns relocated DATADIR static string
3167 _dbus_windows_get_datadir (void)
3169 return _dbus_replace_install_prefix(DBUS_DATADIR);
3173 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3176 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3177 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3180 * Returns the standard directories for a session bus to look for service
3183 * On Windows this should be data directories:
3185 * %CommonProgramFiles%/dbus
3189 * relocated DBUS_DATADIR
3191 * @param dirs the directory list we are returning
3192 * @returns #FALSE on OOM
3196 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3198 const char *common_progs;
3199 DBusString servicedir_path;
3201 if (!_dbus_string_init (&servicedir_path))
3206 /* On Windows CE, we adjust datadir dynamically to installation location. */
3207 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3209 if (data_dir != NULL)
3211 if (!_dbus_string_append (&servicedir_path, data_dir))
3214 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3220 the code for accessing services requires absolute base pathes
3221 in case DBUS_DATADIR is relative make it absolute
3227 _dbus_string_init_const (&p, DBUS_DATADIR);
3229 if (!_dbus_path_is_absolute (&p))
3231 char install_root[1000];
3232 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3233 if (!_dbus_string_append (&servicedir_path, install_root))
3238 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3241 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3245 common_progs = _dbus_getenv ("CommonProgramFiles");
3247 if (common_progs != NULL)
3249 if (!_dbus_string_append (&servicedir_path, common_progs))
3252 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3256 if (!_dbus_split_paths_and_append (&servicedir_path,
3257 DBUS_STANDARD_SESSION_SERVICEDIR,
3261 _dbus_string_free (&servicedir_path);
3265 _dbus_string_free (&servicedir_path);
3270 * Returns the standard directories for a system bus to look for service
3273 * On UNIX this should be the standard xdg freedesktop.org data directories:
3275 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3281 * On Windows there is no system bus and this function can return nothing.
3283 * @param dirs the directory list we are returning
3284 * @returns #FALSE on OOM
3288 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3295 * Atomically increments an integer
3297 * @param atomic pointer to the integer to increment
3298 * @returns the value before incrementing
3302 _dbus_atomic_inc (DBusAtomic *atomic)
3304 // +/- 1 is needed here!
3305 // no volatile argument with mingw
3306 return InterlockedIncrement (&atomic->value) - 1;
3310 * Atomically decrement an integer
3312 * @param atomic pointer to the integer to decrement
3313 * @returns the value before decrementing
3317 _dbus_atomic_dec (DBusAtomic *atomic)
3319 // +/- 1 is needed here!
3320 // no volatile argument with mingw
3321 return InterlockedDecrement (&atomic->value) + 1;
3325 * Atomically get the value of an integer. It may change at any time
3326 * thereafter, so this is mostly only useful for assertions.
3328 * @param atomic pointer to the integer to get
3329 * @returns the value at this moment
3332 _dbus_atomic_get (DBusAtomic *atomic)
3334 /* In this situation, GLib issues a MemoryBarrier() and then returns
3335 * atomic->value. However, mingw from mingw.org (not to be confused with
3336 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3337 * headers, so we have to get a memory barrier some other way.
3339 * InterlockedIncrement is older, and is documented on MSDN to be a full
3340 * memory barrier, so let's use that.
3344 InterlockedExchange (&dummy, 1);
3346 return atomic->value;
3350 * Called when the bus daemon is signaled to reload its configuration; any
3351 * caches should be nuked. Of course any caches that need explicit reload
3352 * are probably broken, but c'est la vie.
3357 _dbus_flush_caches (void)
3362 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3363 * for Winsock so is abstracted)
3365 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3368 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3370 return errno == WSAEWOULDBLOCK;
3374 * return the absolute path of the dbus installation
3376 * @param s buffer for installation path
3377 * @param len length of buffer
3378 * @returns #FALSE on failure
3381 _dbus_get_install_root(char *prefix, int len)
3383 //To find the prefix, we cut the filename and also \bin\ if present
3387 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3388 if ( pathLength == 0 || GetLastError() != 0 ) {
3392 lastSlash = _mbsrchr(prefix, '\\');
3393 if (lastSlash == NULL) {
3397 //cut off binary name
3400 //cut possible "\\bin"
3402 //this fails if we are in a double-byte system codepage and the
3403 //folder's name happens to end with the *bytes*
3404 //"\\bin"... (I.e. the second byte of some Han character and then
3405 //the Latin "bin", but that is not likely I think...
3406 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3408 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3410 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3417 find config file either from installation or build root according to
3418 the following path layout
3420 bin/dbus-daemon[d].exe
3421 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3422 (the former above is what dbus4win uses, the latter above is
3423 what a "normal" Unix-style "make install" uses)
3426 bin/dbus-daemon[d].exe
3427 bus/<config-file>.conf
3430 _dbus_get_config_file_name(DBusString *config_file, char *s)
3432 char path[MAX_PATH*2];
3433 int path_size = sizeof(path);
3435 if (!_dbus_get_install_root(path,path_size))
3438 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3440 strcat(path,"etc\\");
3442 if (_dbus_file_exists(path))
3444 // find path from executable
3445 if (!_dbus_string_append (config_file, path))
3450 if (!_dbus_get_install_root(path,path_size))
3452 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3454 strcat(path,"etc\\dbus-1\\");
3457 if (_dbus_file_exists(path))
3459 if (!_dbus_string_append (config_file, path))
3464 if (!_dbus_get_install_root(path,path_size))
3466 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3468 strcat(path,"bus\\");
3471 if (_dbus_file_exists(path))
3473 if (!_dbus_string_append (config_file, path))
3482 * Append the absolute path of the system.conf file
3483 * (there is no system bus on Windows so this can just
3484 * return FALSE and print a warning or something)
3486 * @param str the string to append to
3487 * @returns #FALSE if no memory
3490 _dbus_append_system_config_file (DBusString *str)
3492 return _dbus_get_config_file_name(str, "system.conf");
3496 * Append the absolute path of the session.conf file.
3498 * @param str the string to append to
3499 * @returns #FALSE if no memory
3502 _dbus_append_session_config_file (DBusString *str)
3504 return _dbus_get_config_file_name(str, "session.conf");
3507 /* See comment in dbus-sysdeps-unix.c */
3509 _dbus_lookup_session_address (dbus_bool_t *supported,
3510 DBusString *address,
3513 /* Probably fill this in with something based on COM? */
3519 * Appends the directory in which a keyring for the given credentials
3520 * should be stored. The credentials should have either a Windows or
3521 * UNIX user in them. The directory should be an absolute path.
3523 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3524 * be something else, since the dotfile convention is not normal on Windows.
3526 * @param directory string to append directory to
3527 * @param credentials credentials the directory should be for
3529 * @returns #FALSE on no memory
3532 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3533 DBusCredentials *credentials)
3537 const char *homepath;
3538 const char *homedrive;
3540 _dbus_assert (credentials != NULL);
3541 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3543 if (!_dbus_string_init (&homedir))
3546 homedrive = _dbus_getenv("HOMEDRIVE");
3547 if (homedrive != NULL && *homedrive != '\0')
3549 _dbus_string_append(&homedir,homedrive);
3552 homepath = _dbus_getenv("HOMEPATH");
3553 if (homepath != NULL && *homepath != '\0')
3555 _dbus_string_append(&homedir,homepath);
3558 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3560 const char *override;
3562 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3563 if (override != NULL && *override != '\0')
3565 _dbus_string_set_length (&homedir, 0);
3566 if (!_dbus_string_append (&homedir, override))
3569 _dbus_verbose ("Using fake homedir for testing: %s\n",
3570 _dbus_string_get_const_data (&homedir));
3574 static dbus_bool_t already_warned = FALSE;
3575 if (!already_warned)
3577 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3578 already_warned = TRUE;
3585 /* It's not possible to create a .something directory in Windows CE
3586 using the file explorer. */
3587 #define KEYRING_DIR "dbus-keyrings"
3589 #define KEYRING_DIR ".dbus-keyrings"
3592 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3593 if (!_dbus_concat_dir_and_file (&homedir,
3597 if (!_dbus_string_copy (&homedir, 0,
3598 directory, _dbus_string_get_length (directory))) {
3602 _dbus_string_free (&homedir);
3606 _dbus_string_free (&homedir);
3610 /** Checks if a file exists
3612 * @param file full path to the file
3613 * @returns #TRUE if file exists
3616 _dbus_file_exists (const char *file)
3618 DWORD attributes = GetFileAttributesA (file);
3620 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3627 * A wrapper around strerror() because some platforms
3628 * may be lame and not have strerror().
3630 * @param error_number errno.
3631 * @returns error description.
3634 _dbus_strerror (int error_number)
3642 switch (error_number)
3645 return "Interrupted function call";
3647 return "Permission denied";
3649 return "Bad address";
3651 return "Invalid argument";
3653 return "Too many open files";
3654 case WSAEWOULDBLOCK:
3655 return "Resource temporarily unavailable";
3656 case WSAEINPROGRESS:
3657 return "Operation now in progress";
3659 return "Operation already in progress";
3661 return "Socket operation on nonsocket";
3662 case WSAEDESTADDRREQ:
3663 return "Destination address required";
3665 return "Message too long";
3667 return "Protocol wrong type for socket";
3668 case WSAENOPROTOOPT:
3669 return "Bad protocol option";
3670 case WSAEPROTONOSUPPORT:
3671 return "Protocol not supported";
3672 case WSAESOCKTNOSUPPORT:
3673 return "Socket type not supported";
3675 return "Operation not supported";
3676 case WSAEPFNOSUPPORT:
3677 return "Protocol family not supported";
3678 case WSAEAFNOSUPPORT:
3679 return "Address family not supported by protocol family";
3681 return "Address already in use";
3682 case WSAEADDRNOTAVAIL:
3683 return "Cannot assign requested address";
3685 return "Network is down";
3686 case WSAENETUNREACH:
3687 return "Network is unreachable";
3689 return "Network dropped connection on reset";
3690 case WSAECONNABORTED:
3691 return "Software caused connection abort";
3693 return "Connection reset by peer";
3695 return "No buffer space available";
3697 return "Socket is already connected";
3699 return "Socket is not connected";
3701 return "Cannot send after socket shutdown";
3703 return "Connection timed out";
3704 case WSAECONNREFUSED:
3705 return "Connection refused";
3707 return "Host is down";
3708 case WSAEHOSTUNREACH:
3709 return "No route to host";
3711 return "Too many processes";
3713 return "Graceful shutdown in progress";
3714 case WSATYPE_NOT_FOUND:
3715 return "Class type not found";
3716 case WSAHOST_NOT_FOUND:
3717 return "Host not found";
3719 return "Nonauthoritative host not found";
3720 case WSANO_RECOVERY:
3721 return "This is a nonrecoverable error";
3723 return "Valid name, no data record of requested type";
3724 case WSA_INVALID_HANDLE:
3725 return "Specified event object handle is invalid";
3726 case WSA_INVALID_PARAMETER:
3727 return "One or more parameters are invalid";
3728 case WSA_IO_INCOMPLETE:
3729 return "Overlapped I/O event object not in signaled state";
3730 case WSA_IO_PENDING:
3731 return "Overlapped operations will complete later";
3732 case WSA_NOT_ENOUGH_MEMORY:
3733 return "Insufficient memory available";
3734 case WSA_OPERATION_ABORTED:
3735 return "Overlapped operation aborted";
3736 #ifdef WSAINVALIDPROCTABLE
3738 case WSAINVALIDPROCTABLE:
3739 return "Invalid procedure table from service provider";
3741 #ifdef WSAINVALIDPROVIDER
3743 case WSAINVALIDPROVIDER:
3744 return "Invalid service provider version number";
3746 #ifdef WSAPROVIDERFAILEDINIT
3748 case WSAPROVIDERFAILEDINIT:
3749 return "Unable to initialize a service provider";
3752 case WSASYSCALLFAILURE:
3753 return "System call failure";
3755 msg = strerror (error_number);
3764 * Assigns an error name and message corresponding to a Win32 error
3765 * code to a DBusError. Does nothing if error is #NULL.
3767 * @param error the error.
3768 * @param code the Win32 error code
3771 _dbus_win_set_error_from_win_error (DBusError *error,
3776 /* As we want the English message, use the A API */
3777 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3778 FORMAT_MESSAGE_IGNORE_INSERTS |
3779 FORMAT_MESSAGE_FROM_SYSTEM,
3780 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3781 (LPSTR) &msg, 0, NULL);
3786 msg_copy = dbus_malloc (strlen (msg));
3787 strcpy (msg_copy, msg);
3790 dbus_set_error (error, "win32.error", "%s", msg_copy);
3793 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3797 _dbus_win_warn_win_error (const char *message,
3802 dbus_error_init (&error);
3803 _dbus_win_set_error_from_win_error (&error, code);
3804 _dbus_warn ("%s: %s\n", message, error.message);
3805 dbus_error_free (&error);
3809 * Removes a directory; Directory must be empty
3811 * @param filename directory filename
3812 * @param error initialized error object
3813 * @returns #TRUE on success
3816 _dbus_delete_directory (const DBusString *filename,
3819 const char *filename_c;
3821 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3823 filename_c = _dbus_string_get_const_data (filename);
3825 if (RemoveDirectoryA (filename_c) == 0)
3827 char *emsg = _dbus_win_error_string (GetLastError ());
3828 dbus_set_error (error, _dbus_win_error_from_last_error (),
3829 "Failed to remove directory %s: %s",
3831 _dbus_win_free_error_string (emsg);
3839 * Checks whether the filename is an absolute path
3841 * @param filename the filename
3842 * @returns #TRUE if an absolute path
3845 _dbus_path_is_absolute (const DBusString *filename)
3847 if (_dbus_string_get_length (filename) > 0)
3848 return _dbus_string_get_byte (filename, 1) == ':'
3849 || _dbus_string_get_byte (filename, 0) == '\\'
3850 || _dbus_string_get_byte (filename, 0) == '/';
3856 _dbus_check_setuid (void)
3861 /** @} end of sysdeps-win */
3862 /* tests in dbus-sysdeps-util.c */