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;
120 * AllocateAndGetTcpExTableFromStack() is undocumented and not exported,
121 * but is the only way to do this in older XP versions.
122 * @return true if the procedures could be loaded
124 static BOOL load_ex_ip_helper_procedures(void)
126 HMODULE hModule = LoadLibrary ("iphlpapi.dll");
129 _dbus_verbose ("could not load iphlpapi.dll\n");
133 lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
134 if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
136 _dbus_verbose ("could not find function AllocateAndGetTcpExTableFromStack in iphlpapi.dll\n");
144 dbus_pid_t get_pid_from_extended_tcp_table(int peer_port)
147 DWORD errorCode, size, i;
148 MIB_TCPTABLE_OWNER_PID *tcp_table;
151 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
153 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
154 if (tcp_table == NULL)
156 _dbus_verbose ("Error allocating memory\n");
161 if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
163 _dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
164 dbus_free (tcp_table);
169 for (i = 0; i < tcp_table->dwNumEntries; i++)
171 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
172 int local_address = ntohl (p->dwLocalAddr);
173 int local_port = ntohs (p->dwLocalPort);
174 if (p->dwState == MIB_TCP_STATE_ESTAB
175 && local_address == INADDR_LOOPBACK && local_port == peer_port)
176 result = p->dwOwningPid;
179 _dbus_verbose ("got pid %d\n", (int)result);
180 dbus_free (tcp_table);
184 dbus_pid_t get_pid_from_tcp_ex_table(int peer_port)
188 PMIB_TCPTABLE_EX tcp_table = NULL;
190 if (!load_ex_ip_helper_procedures ())
193 ("Error not been able to load iphelper procedures\n");
197 errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
199 if (errorCode != NO_ERROR)
202 ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
207 for (i = 0; i < tcp_table->dwNumEntries; i++)
209 _MIB_TCPROW_EX *p = &tcp_table->table[i];
210 int local_port = ntohs (p->dwLocalPort);
211 int local_address = ntohl (p->dwLocalAddr);
212 if (local_address == INADDR_LOOPBACK && local_port == peer_port)
214 result = p->dwOwningPid;
219 HeapFree (GetProcessHeap(), 0, tcp_table);
220 _dbus_verbose ("got pid %d\n", (int)result);
225 * @brief return peer process id from tcp handle for localhost connections
226 * @param handle tcp socket descriptor
227 * @return process id or 0 in case the process id could not be fetched
230 _dbus_get_peer_pid_from_tcp_handle (int handle)
232 struct sockaddr_storage addr;
233 socklen_t len = sizeof (addr);
237 dbus_bool_t is_localhost = FALSE;
239 getpeername (handle, (struct sockaddr *) &addr, &len);
241 if (addr.ss_family == AF_INET)
243 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
244 peer_port = ntohs (s->sin_port);
245 is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
247 else if (addr.ss_family == AF_INET6)
249 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
252 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
253 peer_port = ntohs (s->sin6_port);
254 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
255 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
260 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
266 _dbus_verbose ("could not fetch process id from remote process\n");
273 ("Error not been able to fetch tcp peer port from connection\n");
277 _dbus_verbose ("\n");
279 result = get_pid_from_extended_tcp_table(peer_port);
282 result = get_pid_from_tcp_ex_table(peer_port);
286 /* Convert GetLastError() to a dbus error. */
288 _dbus_win_error_from_last_error (void)
290 switch (GetLastError())
293 return DBUS_ERROR_FAILED;
295 case ERROR_NO_MORE_FILES:
296 case ERROR_TOO_MANY_OPEN_FILES:
297 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
299 case ERROR_ACCESS_DENIED:
300 case ERROR_CANNOT_MAKE:
301 return DBUS_ERROR_ACCESS_DENIED;
303 case ERROR_NOT_ENOUGH_MEMORY:
304 return DBUS_ERROR_NO_MEMORY;
306 case ERROR_FILE_EXISTS:
307 return DBUS_ERROR_FILE_EXISTS;
309 case ERROR_FILE_NOT_FOUND:
310 case ERROR_PATH_NOT_FOUND:
311 return DBUS_ERROR_FILE_NOT_FOUND;
314 return DBUS_ERROR_FAILED;
319 _dbus_win_error_string (int error_number)
323 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
324 FORMAT_MESSAGE_IGNORE_INSERTS |
325 FORMAT_MESSAGE_FROM_SYSTEM,
326 NULL, error_number, 0,
327 (LPSTR) &msg, 0, NULL);
329 if (msg[strlen (msg) - 1] == '\n')
330 msg[strlen (msg) - 1] = '\0';
331 if (msg[strlen (msg) - 1] == '\r')
332 msg[strlen (msg) - 1] = '\0';
338 _dbus_win_free_error_string (char *string)
349 * Thin wrapper around the read() system call that appends
350 * the data it reads to the DBusString buffer. It appends
351 * up to the given count, and returns the same value
352 * and same errno as read(). The only exception is that
353 * _dbus_read_socket() handles EINTR for you.
354 * _dbus_read_socket() can return ENOMEM, even though
355 * regular UNIX read doesn't.
357 * @param fd the file descriptor to read from
358 * @param buffer the buffer to append data to
359 * @param count the amount of data to read
360 * @returns the number of bytes read or -1
364 _dbus_read_socket (int fd,
372 _dbus_assert (count >= 0);
374 start = _dbus_string_get_length (buffer);
376 if (!_dbus_string_lengthen (buffer, count))
378 _dbus_win_set_errno (ENOMEM);
382 data = _dbus_string_get_data_len (buffer, start, count);
386 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
387 bytes_read = recv (fd, data, count, 0);
389 if (bytes_read == SOCKET_ERROR)
391 DBUS_SOCKET_SET_ERRNO();
392 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
396 _dbus_verbose ("recv: = %d\n", bytes_read);
404 /* put length back (note that this doesn't actually realloc anything) */
405 _dbus_string_set_length (buffer, start);
411 /* put length back (doesn't actually realloc) */
412 _dbus_string_set_length (buffer, start + bytes_read);
416 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
424 * Thin wrapper around the write() system call that writes a part of a
425 * DBusString and handles EINTR for you.
427 * @param fd the file descriptor to write
428 * @param buffer the buffer to write data from
429 * @param start the first byte in the buffer to write
430 * @param len the number of bytes to try to write
431 * @returns the number of bytes written or -1 on error
434 _dbus_write_socket (int fd,
435 const DBusString *buffer,
442 data = _dbus_string_get_const_data_len (buffer, start, len);
446 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
447 bytes_written = send (fd, data, len, 0);
449 if (bytes_written == SOCKET_ERROR)
451 DBUS_SOCKET_SET_ERRNO();
452 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
456 _dbus_verbose ("send: = %d\n", bytes_written);
458 if (bytes_written < 0 && errno == EINTR)
462 if (bytes_written > 0)
463 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
466 return bytes_written;
471 * Closes a file descriptor.
473 * @param fd the file descriptor
474 * @param error error object
475 * @returns #FALSE if error set
478 _dbus_close_socket (int fd,
481 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
484 if (closesocket (fd) == SOCKET_ERROR)
486 DBUS_SOCKET_SET_ERRNO ();
491 dbus_set_error (error, _dbus_error_from_errno (errno),
492 "Could not close socket: socket=%d, , %s",
493 fd, _dbus_strerror_from_errno ());
496 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
502 * Sets the file descriptor to be close
503 * on exec. Should be called for all file
504 * descriptors in D-Bus code.
506 * @param fd the file descriptor
509 _dbus_fd_set_close_on_exec (intptr_t handle)
511 if ( !SetHandleInformation( (HANDLE) handle,
512 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
513 0 /*disable both flags*/ ) )
515 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
520 * Sets a file descriptor to be nonblocking.
522 * @param fd the file descriptor.
523 * @param error address of error location.
524 * @returns #TRUE on success.
527 _dbus_set_fd_nonblocking (int handle,
532 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
534 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
536 DBUS_SOCKET_SET_ERRNO ();
537 dbus_set_error (error, _dbus_error_from_errno (errno),
538 "Failed to set socket %d:%d to nonblocking: %s", handle,
539 _dbus_strerror_from_errno ());
548 * Like _dbus_write() but will use writev() if possible
549 * to write both buffers in sequence. The return value
550 * is the number of bytes written in the first buffer,
551 * plus the number written in the second. If the first
552 * buffer is written successfully and an error occurs
553 * writing the second, the number of bytes in the first
554 * is returned (i.e. the error is ignored), on systems that
555 * don't have writev. Handles EINTR for you.
556 * The second buffer may be #NULL.
558 * @param fd the file descriptor
559 * @param buffer1 first buffer
560 * @param start1 first byte to write in first buffer
561 * @param len1 number of bytes to write from first buffer
562 * @param buffer2 second buffer, or #NULL
563 * @param start2 first byte to write in second buffer
564 * @param len2 number of bytes to write in second buffer
565 * @returns total bytes written from both buffers, or -1 on error
568 _dbus_write_socket_two (int fd,
569 const DBusString *buffer1,
572 const DBusString *buffer2,
582 _dbus_assert (buffer1 != NULL);
583 _dbus_assert (start1 >= 0);
584 _dbus_assert (start2 >= 0);
585 _dbus_assert (len1 >= 0);
586 _dbus_assert (len2 >= 0);
589 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
592 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
600 vectors[0].buf = (char*) data1;
601 vectors[0].len = len1;
602 vectors[1].buf = (char*) data2;
603 vectors[1].len = len2;
607 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
616 if (rc == SOCKET_ERROR)
618 DBUS_SOCKET_SET_ERRNO ();
619 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
623 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
625 if (bytes_written < 0 && errno == EINTR)
628 return bytes_written;
632 _dbus_socket_is_invalid (int fd)
634 return fd == INVALID_SOCKET ? TRUE : FALSE;
640 * Opens the client side of a Windows named pipe. The connection D-BUS
641 * file descriptor index is returned. It is set up as nonblocking.
643 * @param path the path to named pipe socket
644 * @param error return location for error code
645 * @returns connection D-BUS file descriptor or -1 on error
648 _dbus_connect_named_pipe (const char *path,
651 _dbus_assert_not_reached ("not implemented");
659 _dbus_win_startup_winsock (void)
661 /* Straight from MSDN, deuglified */
663 static dbus_bool_t beenhere = FALSE;
665 WORD wVersionRequested;
672 wVersionRequested = MAKEWORD (2, 0);
674 err = WSAStartup (wVersionRequested, &wsaData);
677 _dbus_assert_not_reached ("Could not initialize WinSock");
681 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
682 * supports versions greater than 2.0 in addition to 2.0, it will
683 * still return 2.0 in wVersion since that is the version we
686 if (LOBYTE (wsaData.wVersion) != 2 ||
687 HIBYTE (wsaData.wVersion) != 0)
689 _dbus_assert_not_reached ("No usable WinSock found");
704 /************************************************************************
708 ************************************************************************/
711 * Measure the message length without terminating nul
713 int _dbus_printf_string_upper_bound (const char *format,
716 /* MSVCRT's vsnprintf semantics are a bit different */
722 bufsize = sizeof (buf);
723 DBUS_VA_COPY (args_copy, args);
724 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
727 while (len == -1) /* try again */
733 p = malloc (bufsize);
738 DBUS_VA_COPY (args_copy, args);
739 len = _vsnprintf (p, bufsize - 1, format, args_copy);
749 * Returns the UTF-16 form of a UTF-8 string. The result should be
750 * freed with dbus_free() when no longer needed.
752 * @param str the UTF-8 string
753 * @param error return location for error code
756 _dbus_win_utf8_to_utf16 (const char *str,
763 _dbus_string_init_const (&s, str);
765 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
767 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
771 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
775 _dbus_win_set_error_from_win_error (error, GetLastError ());
779 retval = dbus_new (wchar_t, n);
783 _DBUS_SET_OOM (error);
787 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
790 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
798 * Returns the UTF-8 form of a UTF-16 string. The result should be
799 * freed with dbus_free() when no longer needed.
801 * @param str the UTF-16 string
802 * @param error return location for error code
805 _dbus_win_utf16_to_utf8 (const wchar_t *str,
811 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
815 _dbus_win_set_error_from_win_error (error, GetLastError ());
819 retval = dbus_malloc (n);
823 _DBUS_SET_OOM (error);
827 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
830 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
842 /************************************************************************
845 ************************************************************************/
848 _dbus_win_account_to_sid (const wchar_t *waccount,
852 dbus_bool_t retval = FALSE;
853 DWORD sid_length, wdomain_length;
861 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
862 NULL, &wdomain_length, &use) &&
863 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
865 _dbus_win_set_error_from_win_error (error, GetLastError ());
869 *ppsid = dbus_malloc (sid_length);
872 _DBUS_SET_OOM (error);
876 wdomain = dbus_new (wchar_t, wdomain_length);
879 _DBUS_SET_OOM (error);
883 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
884 wdomain, &wdomain_length, &use))
886 _dbus_win_set_error_from_win_error (error, GetLastError ());
890 if (!IsValidSid ((PSID) *ppsid))
892 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
910 /** @} end of sysdeps-win */
914 * The only reason this is separate from _dbus_getpid() is to allow it
915 * on Windows for logging but not for other purposes.
917 * @returns process ID to put in log messages
920 _dbus_pid_for_log (void)
922 return _dbus_getpid ();
927 static BOOL is_winxp_sp3_or_lower()
929 OSVERSIONINFOEX osvi;
930 DWORDLONG dwlConditionMask = 0;
931 int op=VER_LESS_EQUAL;
933 // Initialize the OSVERSIONINFOEX structure.
935 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
936 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
937 osvi.dwMajorVersion = 5;
938 osvi.dwMinorVersion = 1;
939 osvi.wServicePackMajor = 3;
940 osvi.wServicePackMinor = 0;
942 // Initialize the condition mask.
944 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
945 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
946 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
947 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
951 return VerifyVersionInfo(
953 VER_MAJORVERSION | VER_MINORVERSION |
954 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
959 * @param sid points to sid buffer, need to be freed with LocalFree()
960 * @param process_id the process id for which the sid should be returned
961 * @returns process sid
964 _dbus_getsid(char **sid, dbus_pid_t process_id)
966 HANDLE process_token = INVALID_HANDLE_VALUE;
967 TOKEN_USER *token_user = NULL;
972 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
974 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
976 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
979 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
980 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
981 || (token_user = alloca (n)) == NULL
982 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
984 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
987 psid = token_user->User.Sid;
988 if (!IsValidSid (psid))
990 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
993 if (!ConvertSidToStringSidA (psid, sid))
995 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1002 CloseHandle (process_handle);
1003 if (process_token != INVALID_HANDLE_VALUE)
1004 CloseHandle (process_token);
1006 _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
1011 /************************************************************************
1015 ************************************************************************/
1018 * Creates a full-duplex pipe (as in socketpair()).
1019 * Sets both ends of the pipe nonblocking.
1021 * @param fd1 return location for one end
1022 * @param fd2 return location for the other end
1023 * @param blocking #TRUE if pipe should be blocking
1024 * @param error error return
1025 * @returns #FALSE on failure (if error is set)
1028 _dbus_full_duplex_pipe (int *fd1,
1030 dbus_bool_t blocking,
1033 SOCKET temp, socket1 = -1, socket2 = -1;
1034 struct sockaddr_in saddr;
1038 _dbus_win_startup_winsock ();
1040 temp = socket (AF_INET, SOCK_STREAM, 0);
1041 if (temp == INVALID_SOCKET)
1043 DBUS_SOCKET_SET_ERRNO ();
1048 saddr.sin_family = AF_INET;
1050 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1052 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1054 DBUS_SOCKET_SET_ERRNO ();
1058 if (listen (temp, 1) == SOCKET_ERROR)
1060 DBUS_SOCKET_SET_ERRNO ();
1064 len = sizeof (saddr);
1065 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1067 DBUS_SOCKET_SET_ERRNO ();
1071 socket1 = socket (AF_INET, SOCK_STREAM, 0);
1072 if (socket1 == INVALID_SOCKET)
1074 DBUS_SOCKET_SET_ERRNO ();
1078 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1080 DBUS_SOCKET_SET_ERRNO ();
1084 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1085 if (socket2 == INVALID_SOCKET)
1087 DBUS_SOCKET_SET_ERRNO ();
1094 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1096 DBUS_SOCKET_SET_ERRNO ();
1101 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1103 DBUS_SOCKET_SET_ERRNO ();
1111 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1112 *fd1, socket1, *fd2, socket2);
1119 closesocket (socket2);
1121 closesocket (socket1);
1125 dbus_set_error (error, _dbus_error_from_errno (errno),
1126 "Could not setup socket pair: %s",
1127 _dbus_strerror_from_errno ());
1133 * Wrapper for poll().
1135 * @param fds the file descriptors to poll
1136 * @param n_fds number of descriptors in the array
1137 * @param timeout_milliseconds timeout or -1 for infinite
1138 * @returns numbers of fds with revents, or <0 on error
1141 _dbus_poll (DBusPollFD *fds,
1143 int timeout_milliseconds)
1145 #define USE_CHRIS_IMPL 0
1149 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1150 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1158 #define DBUS_STACK_WSAEVENTS 256
1159 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1160 WSAEVENT *pEvents = NULL;
1161 if (n_fds > DBUS_STACK_WSAEVENTS)
1162 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1164 pEvents = eventsOnStack;
1167 #ifdef DBUS_ENABLE_VERBOSE_MODE
1169 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1170 for (i = 0; i < n_fds; i++)
1172 DBusPollFD *fdp = &fds[i];
1175 if (fdp->events & _DBUS_POLLIN)
1176 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1178 if (fdp->events & _DBUS_POLLOUT)
1179 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1181 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1183 // FIXME: more robust code for long msg
1184 // create on heap when msg[] becomes too small
1185 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1187 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1191 msgp += sprintf (msgp, "\n");
1192 _dbus_verbose ("%s",msg);
1194 for (i = 0; i < n_fds; i++)
1196 DBusPollFD *fdp = &fds[i];
1198 long lNetworkEvents = FD_OOB;
1200 ev = WSACreateEvent();
1202 if (fdp->events & _DBUS_POLLIN)
1203 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1205 if (fdp->events & _DBUS_POLLOUT)
1206 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1208 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1214 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1216 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1218 DBUS_SOCKET_SET_ERRNO ();
1219 if (errno != WSAEWOULDBLOCK)
1220 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1223 else if (ready == WSA_WAIT_TIMEOUT)
1225 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1228 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1231 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1233 for (i = 0; i < n_fds; i++)
1235 DBusPollFD *fdp = &fds[i];
1236 WSANETWORKEVENTS ne;
1240 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1242 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1243 fdp->revents |= _DBUS_POLLIN;
1245 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1246 fdp->revents |= _DBUS_POLLOUT;
1248 if (ne.lNetworkEvents & (FD_OOB))
1249 fdp->revents |= _DBUS_POLLERR;
1251 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1252 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1254 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1255 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1257 if (ne.lNetworkEvents & (FD_OOB))
1258 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1260 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1262 if(ne.lNetworkEvents)
1265 WSAEventSelect(fdp->fd, pEvents[i], 0);
1268 msgp += sprintf (msgp, "\n");
1269 _dbus_verbose ("%s",msg);
1273 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1277 for(i = 0; i < n_fds; i++)
1279 WSACloseEvent(pEvents[i]);
1282 if (n_fds > DBUS_STACK_WSAEVENTS)
1287 #else /* USE_CHRIS_IMPL */
1289 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1290 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1293 fd_set read_set, write_set, err_set;
1299 FD_ZERO (&read_set);
1300 FD_ZERO (&write_set);
1304 #ifdef DBUS_ENABLE_VERBOSE_MODE
1306 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1307 for (i = 0; i < n_fds; i++)
1309 DBusPollFD *fdp = &fds[i];
1312 if (fdp->events & _DBUS_POLLIN)
1313 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1315 if (fdp->events & _DBUS_POLLOUT)
1316 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1318 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1320 // FIXME: more robust code for long msg
1321 // create on heap when msg[] becomes too small
1322 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1324 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1328 msgp += sprintf (msgp, "\n");
1329 _dbus_verbose ("%s",msg);
1331 for (i = 0; i < n_fds; i++)
1333 DBusPollFD *fdp = &fds[i];
1335 if (fdp->events & _DBUS_POLLIN)
1336 FD_SET (fdp->fd, &read_set);
1338 if (fdp->events & _DBUS_POLLOUT)
1339 FD_SET (fdp->fd, &write_set);
1341 FD_SET (fdp->fd, &err_set);
1343 max_fd = MAX (max_fd, fdp->fd);
1346 // Avoid random lockups with send(), for lack of a better solution so far
1347 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1348 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1350 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1352 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1354 DBUS_SOCKET_SET_ERRNO ();
1355 if (errno != WSAEWOULDBLOCK)
1356 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1358 else if (ready == 0)
1359 _dbus_verbose ("select: = 0\n");
1363 #ifdef DBUS_ENABLE_VERBOSE_MODE
1365 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1367 for (i = 0; i < n_fds; i++)
1369 DBusPollFD *fdp = &fds[i];
1371 if (FD_ISSET (fdp->fd, &read_set))
1372 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1374 if (FD_ISSET (fdp->fd, &write_set))
1375 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1377 if (FD_ISSET (fdp->fd, &err_set))
1378 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1380 msgp += sprintf (msgp, "\n");
1381 _dbus_verbose ("%s",msg);
1384 for (i = 0; i < n_fds; i++)
1386 DBusPollFD *fdp = &fds[i];
1390 if (FD_ISSET (fdp->fd, &read_set))
1391 fdp->revents |= _DBUS_POLLIN;
1393 if (FD_ISSET (fdp->fd, &write_set))
1394 fdp->revents |= _DBUS_POLLOUT;
1396 if (FD_ISSET (fdp->fd, &err_set))
1397 fdp->revents |= _DBUS_POLLERR;
1401 #endif /* USE_CHRIS_IMPL */
1407 /******************************************************************************
1409 Original CVS version of dbus-sysdeps.c
1411 ******************************************************************************/
1412 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1413 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1415 * Copyright (C) 2002, 2003 Red Hat, Inc.
1416 * Copyright (C) 2003 CodeFactory AB
1417 * Copyright (C) 2005 Novell, Inc.
1419 * Licensed under the Academic Free License version 2.1
1421 * This program is free software; you can redistribute it and/or modify
1422 * it under the terms of the GNU General Public License as published by
1423 * the Free Software Foundation; either version 2 of the License, or
1424 * (at your option) any later version.
1426 * This program is distributed in the hope that it will be useful,
1427 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1428 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1429 * GNU General Public License for more details.
1431 * You should have received a copy of the GNU General Public License
1432 * along with this program; if not, write to the Free Software
1433 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1439 * Exit the process, returning the given value.
1441 * @param code the exit code
1444 _dbus_exit (int code)
1450 * Creates a socket and connects to a socket at the given host
1451 * and port. The connection fd is returned, and is set up as
1454 * @param host the host name to connect to
1455 * @param port the port to connect to
1456 * @param family the address family to listen on, NULL for all
1457 * @param error return location for error code
1458 * @returns connection file descriptor or -1 on error
1461 _dbus_connect_tcp_socket (const char *host,
1466 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1470 _dbus_connect_tcp_socket_with_nonce (const char *host,
1473 const char *noncefile,
1477 struct addrinfo hints;
1478 struct addrinfo *ai, *tmp;
1480 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1482 _dbus_win_startup_winsock ();
1487 hints.ai_family = AF_UNSPEC;
1488 else if (!strcmp(family, "ipv4"))
1489 hints.ai_family = AF_INET;
1490 else if (!strcmp(family, "ipv6"))
1491 hints.ai_family = AF_INET6;
1494 dbus_set_error (error,
1495 DBUS_ERROR_INVALID_ARGS,
1496 "Unknown address family %s", family);
1499 hints.ai_protocol = IPPROTO_TCP;
1500 hints.ai_socktype = SOCK_STREAM;
1501 #ifdef AI_ADDRCONFIG
1502 hints.ai_flags = AI_ADDRCONFIG;
1507 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1509 dbus_set_error (error,
1510 _dbus_error_from_errno (res),
1511 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1512 host, port, _dbus_strerror(res), res);
1519 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1521 DBUS_SOCKET_SET_ERRNO ();
1522 dbus_set_error (error,
1523 _dbus_error_from_errno (errno),
1524 "Failed to open socket: %s",
1525 _dbus_strerror_from_errno ());
1529 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1531 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1533 DBUS_SOCKET_SET_ERRNO ();
1546 dbus_set_error (error,
1547 _dbus_error_from_errno (errno),
1548 "Failed to connect to socket \"%s:%s\" %s",
1549 host, port, _dbus_strerror_from_errno ());
1553 if (noncefile != NULL)
1555 DBusString noncefileStr;
1557 if (!_dbus_string_init (&noncefileStr) ||
1558 !_dbus_string_append(&noncefileStr, noncefile))
1561 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1565 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1567 _dbus_string_free (&noncefileStr);
1576 _dbus_fd_set_close_on_exec (fd);
1578 if (!_dbus_set_fd_nonblocking (fd, error))
1588 * Creates a socket and binds it to the given path, then listens on
1589 * the socket. The socket is set to be nonblocking. In case of port=0
1590 * a random free port is used and returned in the port parameter.
1591 * If inaddr_any is specified, the hostname is ignored.
1593 * @param host the host name to listen on
1594 * @param port the port to listen on, if zero a free port will be used
1595 * @param family the address family to listen on, NULL for all
1596 * @param retport string to return the actual port listened on
1597 * @param fds_p location to store returned file descriptors
1598 * @param error return location for errors
1599 * @returns the number of listening file descriptors or -1 on error
1603 _dbus_listen_tcp_socket (const char *host,
1606 DBusString *retport,
1610 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1611 struct addrinfo hints;
1612 struct addrinfo *ai, *tmp;
1614 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1615 //That's required for family == IPv6(which is the default on Vista if family is not given)
1616 //So we use our own union instead of sockaddr_gen:
1619 struct sockaddr Address;
1620 struct sockaddr_in AddressIn;
1621 struct sockaddr_in6 AddressIn6;
1625 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1627 _dbus_win_startup_winsock ();
1632 hints.ai_family = AF_UNSPEC;
1633 else if (!strcmp(family, "ipv4"))
1634 hints.ai_family = AF_INET;
1635 else if (!strcmp(family, "ipv6"))
1636 hints.ai_family = AF_INET6;
1639 dbus_set_error (error,
1640 DBUS_ERROR_INVALID_ARGS,
1641 "Unknown address family %s", family);
1645 hints.ai_protocol = IPPROTO_TCP;
1646 hints.ai_socktype = SOCK_STREAM;
1647 #ifdef AI_ADDRCONFIG
1648 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1650 hints.ai_flags = AI_PASSIVE;
1653 redo_lookup_with_port:
1654 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1656 dbus_set_error (error,
1657 _dbus_error_from_errno (res),
1658 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1659 host ? host : "*", port, _dbus_strerror(res), res);
1666 int fd = -1, *newlisten_fd;
1667 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1669 DBUS_SOCKET_SET_ERRNO ();
1670 dbus_set_error (error,
1671 _dbus_error_from_errno (errno),
1672 "Failed to open socket: %s",
1673 _dbus_strerror_from_errno ());
1676 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1678 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1680 DBUS_SOCKET_SET_ERRNO ();
1681 dbus_set_error (error, _dbus_error_from_errno (errno),
1682 "Failed to bind socket \"%s:%s\": %s",
1683 host ? host : "*", port, _dbus_strerror_from_errno ());
1688 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1690 DBUS_SOCKET_SET_ERRNO ();
1691 dbus_set_error (error, _dbus_error_from_errno (errno),
1692 "Failed to listen on socket \"%s:%s\": %s",
1693 host ? host : "*", port, _dbus_strerror_from_errno ());
1698 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1702 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1703 "Failed to allocate file handle array");
1706 listen_fd = newlisten_fd;
1707 listen_fd[nlisten_fd] = fd;
1710 if (!_dbus_string_get_length(retport))
1712 /* If the user didn't specify a port, or used 0, then
1713 the kernel chooses a port. After the first address
1714 is bound to, we need to force all remaining addresses
1715 to use the same port */
1716 if (!port || !strcmp(port, "0"))
1718 mysockaddr_gen addr;
1719 socklen_t addrlen = sizeof(addr);
1722 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1724 DBUS_SOCKET_SET_ERRNO ();
1725 dbus_set_error (error, _dbus_error_from_errno (errno),
1726 "Failed to resolve port \"%s:%s\": %s",
1727 host ? host : "*", port, _dbus_strerror_from_errno());
1730 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1731 if (!_dbus_string_append(retport, portbuf))
1733 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1737 /* Release current address list & redo lookup */
1738 port = _dbus_string_get_const_data(retport);
1740 goto redo_lookup_with_port;
1744 if (!_dbus_string_append(retport, port))
1746 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1759 _dbus_win_set_errno (WSAEADDRINUSE);
1760 dbus_set_error (error, _dbus_error_from_errno (errno),
1761 "Failed to bind socket \"%s:%s\": %s",
1762 host ? host : "*", port, _dbus_strerror_from_errno ());
1766 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1768 for (i = 0 ; i < nlisten_fd ; i++)
1770 _dbus_fd_set_close_on_exec (listen_fd[i]);
1771 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1784 for (i = 0 ; i < nlisten_fd ; i++)
1785 closesocket (listen_fd[i]);
1786 dbus_free(listen_fd);
1792 * Accepts a connection on a listening socket.
1793 * Handles EINTR for you.
1795 * @param listen_fd the listen file descriptor
1796 * @returns the connection fd of the client, or -1 on error
1799 _dbus_accept (int listen_fd)
1804 client_fd = accept (listen_fd, NULL, NULL);
1806 if (DBUS_SOCKET_IS_INVALID (client_fd))
1808 DBUS_SOCKET_SET_ERRNO ();
1813 _dbus_verbose ("client fd %d accepted\n", client_fd);
1822 _dbus_send_credentials_socket (int handle,
1825 /* FIXME: for the session bus credentials shouldn't matter (?), but
1826 * for the system bus they are presumably essential. A rough outline
1827 * of a way to implement the credential transfer would be this:
1829 * client waits to *read* a byte.
1831 * server creates a named pipe with a random name, sends a byte
1832 * contining its length, and its name.
1834 * client reads the name, connects to it (using Win32 API).
1836 * server waits for connection to the named pipe, then calls
1837 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1838 * calls RevertToSelf(), closes its handles to the named pipe, and
1839 * is done. (Maybe there is some other way to get the SID of a named
1840 * pipe client without having to use impersonation?)
1842 * client closes its handles and is done.
1844 * Ralf: Why not sending credentials over the given this connection ?
1845 * Using named pipes makes it impossible to be connected from a unix client.
1851 _dbus_string_init_const_len (&buf, "\0", 1);
1853 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1855 if (bytes_written < 0 && errno == EINTR)
1858 if (bytes_written < 0)
1860 dbus_set_error (error, _dbus_error_from_errno (errno),
1861 "Failed to write credentials byte: %s",
1862 _dbus_strerror_from_errno ());
1865 else if (bytes_written == 0)
1867 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1868 "wrote zero bytes writing credentials byte");
1873 _dbus_assert (bytes_written == 1);
1874 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1881 * Reads a single byte which must be nul (an error occurs otherwise),
1882 * and reads unix credentials if available. Fills in pid/uid/gid with
1883 * -1 if no credentials are available. Return value indicates whether
1884 * a byte was read, not whether we got valid credentials. On some
1885 * systems, such as Linux, reading/writing the byte isn't actually
1886 * required, but we do it anyway just to avoid multiple codepaths.
1888 * Fails if no byte is available, so you must select() first.
1890 * The point of the byte is that on some systems we have to
1891 * use sendmsg()/recvmsg() to transmit credentials.
1893 * @param client_fd the client file descriptor
1894 * @param credentials struct to fill with credentials of client
1895 * @param error location to store error code
1896 * @returns #TRUE on success
1899 _dbus_read_credentials_socket (int handle,
1900 DBusCredentials *credentials,
1910 // could fail due too OOM
1911 if (_dbus_string_init (&buf))
1913 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1916 _dbus_verbose ("got one zero byte from server\n");
1918 _dbus_string_free (&buf);
1921 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1925 _dbus_credentials_add_pid (credentials, pid);
1927 if (_dbus_getsid (&sid, pid))
1929 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1943 * Checks to make sure the given directory is
1944 * private to the user
1946 * @param dir the name of the directory
1947 * @param error error return
1948 * @returns #FALSE on failure
1951 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1954 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1960 * Appends the given filename to the given directory.
1962 * @todo it might be cute to collapse multiple '/' such as "foo//"
1965 * @param dir the directory name
1966 * @param next_component the filename
1967 * @returns #TRUE on success
1970 _dbus_concat_dir_and_file (DBusString *dir,
1971 const DBusString *next_component)
1973 dbus_bool_t dir_ends_in_slash;
1974 dbus_bool_t file_starts_with_slash;
1976 if (_dbus_string_get_length (dir) == 0 ||
1977 _dbus_string_get_length (next_component) == 0)
1981 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1982 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1984 file_starts_with_slash =
1985 ('/' == _dbus_string_get_byte (next_component, 0) ||
1986 '\\' == _dbus_string_get_byte (next_component, 0));
1988 if (dir_ends_in_slash && file_starts_with_slash)
1990 _dbus_string_shorten (dir, 1);
1992 else if (!(dir_ends_in_slash || file_starts_with_slash))
1994 if (!_dbus_string_append_byte (dir, '\\'))
1998 return _dbus_string_copy (next_component, 0, dir,
1999 _dbus_string_get_length (dir));
2002 /*---------------- DBusCredentials ----------------------------------*/
2005 * Adds the credentials corresponding to the given username.
2007 * @param credentials credentials to fill in
2008 * @param username the username
2009 * @returns #TRUE if the username existed and we got some credentials
2012 _dbus_credentials_add_from_user (DBusCredentials *credentials,
2013 const DBusString *username)
2015 return _dbus_credentials_add_windows_sid (credentials,
2016 _dbus_string_get_const_data(username));
2020 * Adds the credentials of the current process to the
2021 * passed-in credentials object.
2023 * @param credentials credentials to add to
2024 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
2028 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
2030 dbus_bool_t retval = FALSE;
2033 if (!_dbus_getsid(&sid, _dbus_getpid()))
2036 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2039 if (!_dbus_credentials_add_windows_sid (credentials,sid))
2054 * Append to the string the identity we would like to have when we
2055 * authenticate, on UNIX this is the current process UID and on
2056 * Windows something else, probably a Windows SID string. No escaping
2057 * is required, that is done in dbus-auth.c. The username here
2058 * need not be anything human-readable, it can be the machine-readable
2059 * form i.e. a user id.
2061 * @param str the string to append to
2062 * @returns #FALSE on no memory
2063 * @todo to which class belongs this
2066 _dbus_append_user_from_current_process (DBusString *str)
2068 dbus_bool_t retval = FALSE;
2071 if (!_dbus_getsid(&sid, _dbus_getpid()))
2074 retval = _dbus_string_append (str,sid);
2081 * Gets our process ID
2082 * @returns process ID
2087 return GetCurrentProcessId ();
2090 /** nanoseconds in a second */
2091 #define NANOSECONDS_PER_SECOND 1000000000
2092 /** microseconds in a second */
2093 #define MICROSECONDS_PER_SECOND 1000000
2094 /** milliseconds in a second */
2095 #define MILLISECONDS_PER_SECOND 1000
2096 /** nanoseconds in a millisecond */
2097 #define NANOSECONDS_PER_MILLISECOND 1000000
2098 /** microseconds in a millisecond */
2099 #define MICROSECONDS_PER_MILLISECOND 1000
2102 * Sleeps the given number of milliseconds.
2103 * @param milliseconds number of milliseconds
2106 _dbus_sleep_milliseconds (int milliseconds)
2108 Sleep (milliseconds);
2113 * Get current time, as in gettimeofday(). Never uses the monotonic
2116 * @param tv_sec return location for number of seconds
2117 * @param tv_usec return location for number of microseconds
2120 _dbus_get_real_time (long *tv_sec,
2124 dbus_uint64_t time64;
2126 GetSystemTimeAsFileTime (&ft);
2128 memcpy (&time64, &ft, sizeof (time64));
2130 /* Convert from 100s of nanoseconds since 1601-01-01
2131 * to Unix epoch. Yes, this is Y2038 unsafe.
2133 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2137 *tv_sec = time64 / 1000000;
2140 *tv_usec = time64 % 1000000;
2144 * Get current time, as in gettimeofday(). Use the monotonic clock if
2145 * available, to avoid problems when the system time changes.
2147 * @param tv_sec return location for number of seconds
2148 * @param tv_usec return location for number of microseconds
2151 _dbus_get_monotonic_time (long *tv_sec,
2154 /* no implementation yet, fall back to wall-clock time */
2155 _dbus_get_real_time (tv_sec, tv_usec);
2159 * signal (SIGPIPE, SIG_IGN);
2162 _dbus_disable_sigpipe (void)
2167 * Creates a directory; succeeds if the directory
2168 * is created or already existed.
2170 * @param filename directory filename
2171 * @param error initialized error object
2172 * @returns #TRUE on success
2175 _dbus_create_directory (const DBusString *filename,
2178 const char *filename_c;
2180 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2182 filename_c = _dbus_string_get_const_data (filename);
2184 if (!CreateDirectoryA (filename_c, NULL))
2186 if (GetLastError () == ERROR_ALREADY_EXISTS)
2189 dbus_set_error (error, DBUS_ERROR_FAILED,
2190 "Failed to create directory %s: %s\n",
2191 filename_c, _dbus_strerror_from_errno ());
2200 * Generates the given number of random bytes,
2201 * using the best mechanism we can come up with.
2203 * @param str the string
2204 * @param n_bytes the number of random bytes to append to string
2205 * @returns #TRUE on success, #FALSE if no memory
2208 _dbus_generate_random_bytes (DBusString *str,
2215 old_len = _dbus_string_get_length (str);
2217 if (!_dbus_string_lengthen (str, n_bytes))
2220 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2222 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2225 if (!CryptGenRandom (hprov, n_bytes, p))
2227 CryptReleaseContext (hprov, 0);
2231 CryptReleaseContext (hprov, 0);
2237 * Gets the temporary files directory by inspecting the environment variables
2238 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2240 * @returns location of temp directory
2243 _dbus_get_tmpdir(void)
2245 static const char* tmpdir = NULL;
2246 static char buf[1000];
2252 if (!GetTempPathA (sizeof (buf), buf))
2254 _dbus_warn ("GetTempPath failed\n");
2258 /* Drop terminating backslash or slash */
2259 last_slash = _mbsrchr (buf, '\\');
2260 if (last_slash > buf && last_slash[1] == '\0')
2261 last_slash[0] = '\0';
2262 last_slash = _mbsrchr (buf, '/');
2263 if (last_slash > buf && last_slash[1] == '\0')
2264 last_slash[0] = '\0';
2269 _dbus_assert(tmpdir != NULL);
2276 * Deletes the given file.
2278 * @param filename the filename
2279 * @param error error location
2281 * @returns #TRUE if unlink() succeeded
2284 _dbus_delete_file (const DBusString *filename,
2287 const char *filename_c;
2289 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2291 filename_c = _dbus_string_get_const_data (filename);
2293 if (DeleteFileA (filename_c) == 0)
2295 dbus_set_error (error, DBUS_ERROR_FAILED,
2296 "Failed to delete file %s: %s\n",
2297 filename_c, _dbus_strerror_from_errno ());
2305 * replaces the term DBUS_PREFIX in configure_time_path by the
2306 * current dbus installation directory. On unix this function is a noop
2308 * @param configure_time_path
2312 _dbus_replace_install_prefix (const char *configure_time_path)
2315 return configure_time_path;
2317 static char retval[1000];
2318 static char runtime_prefix[1000];
2322 if (!configure_time_path)
2325 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2326 strncmp (configure_time_path, DBUS_PREFIX "/",
2327 strlen (DBUS_PREFIX) + 1))) {
2328 strcat (retval, configure_time_path);
2332 strcpy (retval, runtime_prefix);
2333 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2335 /* Somehow, in some situations, backslashes get collapsed in the string.
2336 * Since windows C library accepts both forward and backslashes as
2337 * path separators, convert all backslashes to forward slashes.
2340 for(i = 0; retval[i] != '\0'; i++) {
2341 if(retval[i] == '\\')
2348 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2350 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2360 * Backtrace Generator
2362 * Copyright 2004 Eric Poech
2363 * Copyright 2004 Robert Shearman
2365 * This library is free software; you can redistribute it and/or
2366 * modify it under the terms of the GNU Lesser General Public
2367 * License as published by the Free Software Foundation; either
2368 * version 2.1 of the License, or (at your option) any later version.
2370 * This library is distributed in the hope that it will be useful,
2371 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2372 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2373 * Lesser General Public License for more details.
2375 * You should have received a copy of the GNU Lesser General Public
2376 * License along with this library; if not, write to the Free Software
2377 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2381 #include <imagehlp.h>
2384 #define DPRINTF _dbus_warn
2392 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2394 //MAKE_FUNCPTR(StackWalk);
2395 //MAKE_FUNCPTR(SymGetModuleBase);
2396 //MAKE_FUNCPTR(SymFunctionTableAccess);
2397 //MAKE_FUNCPTR(SymInitialize);
2398 //MAKE_FUNCPTR(SymGetSymFromAddr);
2399 //MAKE_FUNCPTR(SymGetModuleInfo);
2400 static BOOL (WINAPI *pStackWalk)(
2404 LPSTACKFRAME StackFrame,
2405 PVOID ContextRecord,
2406 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2407 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2408 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2409 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2412 static DWORD64 (WINAPI *pSymGetModuleBase)(
2416 static PVOID (WINAPI *pSymFunctionTableAccess)(
2421 static DWORD (WINAPI *pSymGetModuleBase)(
2425 static PVOID (WINAPI *pSymFunctionTableAccess)(
2430 static BOOL (WINAPI *pSymInitialize)(
2432 PSTR UserSearchPath,
2435 static BOOL (WINAPI *pSymGetSymFromAddr)(
2438 PDWORD Displacement,
2439 PIMAGEHLP_SYMBOL Symbol
2441 static BOOL (WINAPI *pSymGetModuleInfo)(
2444 PIMAGEHLP_MODULE ModuleInfo
2446 static DWORD (WINAPI *pSymSetOptions)(
2451 static BOOL init_backtrace()
2453 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2455 #define GETFUNC(x) \
2456 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2464 // GETFUNC(StackWalk);
2465 // GETFUNC(SymGetModuleBase);
2466 // GETFUNC(SymFunctionTableAccess);
2467 // GETFUNC(SymInitialize);
2468 // GETFUNC(SymGetSymFromAddr);
2469 // GETFUNC(SymGetModuleInfo);
2473 pStackWalk = (BOOL (WINAPI *)(
2477 LPSTACKFRAME StackFrame,
2478 PVOID ContextRecord,
2479 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2480 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2481 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2482 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2483 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2485 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2488 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2489 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2492 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2494 pSymGetModuleBase=(DWORD (WINAPI *)(
2497 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2498 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2501 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2503 pSymInitialize = (BOOL (WINAPI *)(
2505 PSTR UserSearchPath,
2507 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2508 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2511 PDWORD Displacement,
2512 PIMAGEHLP_SYMBOL Symbol
2513 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2514 pSymGetModuleInfo = (BOOL (WINAPI *)(
2517 PIMAGEHLP_MODULE ModuleInfo
2518 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2519 pSymSetOptions = (DWORD (WINAPI *)(
2521 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2524 pSymSetOptions(SYMOPT_UNDNAME);
2526 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2531 static void dump_backtrace_for_thread(HANDLE hThread)
2538 if (!init_backtrace())
2541 /* can't use this function for current thread as GetThreadContext
2542 * doesn't support getting context from current thread */
2543 if (hThread == GetCurrentThread())
2546 DPRINTF("Backtrace:\n");
2548 _DBUS_ZERO(context);
2549 context.ContextFlags = CONTEXT_FULL;
2551 SuspendThread(hThread);
2553 if (!GetThreadContext(hThread, &context))
2555 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2556 ResumeThread(hThread);
2563 sf.AddrFrame.Offset = context.Ebp;
2564 sf.AddrFrame.Mode = AddrModeFlat;
2565 sf.AddrPC.Offset = context.Eip;
2566 sf.AddrPC.Mode = AddrModeFlat;
2567 dwImageType = IMAGE_FILE_MACHINE_I386;
2569 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2570 sf.AddrPC.Offset = context.Rip;
2571 sf.AddrPC.Mode = AddrModeFlat;
2572 sf.AddrFrame.Offset = context.Rsp;
2573 sf.AddrFrame.Mode = AddrModeFlat;
2574 sf.AddrStack.Offset = context.Rsp;
2575 sf.AddrStack.Mode = AddrModeFlat;
2577 dwImageType = IMAGE_FILE_MACHINE_IA64;
2578 sf.AddrPC.Offset = context.StIIP;
2579 sf.AddrPC.Mode = AddrModeFlat;
2580 sf.AddrFrame.Offset = context.IntSp;
2581 sf.AddrFrame.Mode = AddrModeFlat;
2582 sf.AddrBStore.Offset= context.RsBSP;
2583 sf.AddrBStore.Mode = AddrModeFlat;
2584 sf.AddrStack.Offset = context.IntSp;
2585 sf.AddrStack.Mode = AddrModeFlat;
2587 # error You need to fill in the STACKFRAME structure for your architecture
2590 while (pStackWalk(dwImageType, GetCurrentProcess(),
2591 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2592 pSymGetModuleBase, NULL))
2595 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2596 DWORD dwDisplacement;
2598 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2599 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2601 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2602 &dwDisplacement, pSymbol))
2604 IMAGEHLP_MODULE ModuleInfo;
2605 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2607 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2609 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2611 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2612 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2614 else if (dwDisplacement)
2615 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2617 DPRINTF("4\t%s\n", pSymbol->Name);
2620 ResumeThread(hThread);
2623 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2625 dump_backtrace_for_thread((HANDLE)lpParameter);
2629 /* cannot get valid context from current thread, so we have to execute
2630 * backtrace from another thread */
2631 static void dump_backtrace()
2633 HANDLE hCurrentThread;
2636 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2637 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2638 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2640 WaitForSingleObject(hThread, INFINITE);
2641 CloseHandle(hThread);
2642 CloseHandle(hCurrentThread);
2645 #endif /* asserts or tests enabled */
2648 void _dbus_print_backtrace(void)
2654 void _dbus_print_backtrace(void)
2656 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2660 static dbus_uint32_t fromAscii(char ascii)
2662 if(ascii >= '0' && ascii <= '9')
2664 if(ascii >= 'A' && ascii <= 'F')
2665 return ascii - 'A' + 10;
2666 if(ascii >= 'a' && ascii <= 'f')
2667 return ascii - 'a' + 10;
2671 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2672 dbus_bool_t create_if_not_found,
2679 HW_PROFILE_INFOA info;
2680 char *lpc = &info.szHwProfileGuid[0];
2683 // the hw-profile guid lives long enough
2684 if(!GetCurrentHwProfileA(&info))
2686 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2690 // Form: {12340001-4980-1920-6788-123456789012}
2693 u = ((fromAscii(lpc[0]) << 0) |
2694 (fromAscii(lpc[1]) << 4) |
2695 (fromAscii(lpc[2]) << 8) |
2696 (fromAscii(lpc[3]) << 12) |
2697 (fromAscii(lpc[4]) << 16) |
2698 (fromAscii(lpc[5]) << 20) |
2699 (fromAscii(lpc[6]) << 24) |
2700 (fromAscii(lpc[7]) << 28));
2701 machine_id->as_uint32s[0] = u;
2705 u = ((fromAscii(lpc[0]) << 0) |
2706 (fromAscii(lpc[1]) << 4) |
2707 (fromAscii(lpc[2]) << 8) |
2708 (fromAscii(lpc[3]) << 12) |
2709 (fromAscii(lpc[5]) << 16) |
2710 (fromAscii(lpc[6]) << 20) |
2711 (fromAscii(lpc[7]) << 24) |
2712 (fromAscii(lpc[8]) << 28));
2713 machine_id->as_uint32s[1] = u;
2717 u = ((fromAscii(lpc[0]) << 0) |
2718 (fromAscii(lpc[1]) << 4) |
2719 (fromAscii(lpc[2]) << 8) |
2720 (fromAscii(lpc[3]) << 12) |
2721 (fromAscii(lpc[5]) << 16) |
2722 (fromAscii(lpc[6]) << 20) |
2723 (fromAscii(lpc[7]) << 24) |
2724 (fromAscii(lpc[8]) << 28));
2725 machine_id->as_uint32s[2] = u;
2729 u = ((fromAscii(lpc[0]) << 0) |
2730 (fromAscii(lpc[1]) << 4) |
2731 (fromAscii(lpc[2]) << 8) |
2732 (fromAscii(lpc[3]) << 12) |
2733 (fromAscii(lpc[4]) << 16) |
2734 (fromAscii(lpc[5]) << 20) |
2735 (fromAscii(lpc[6]) << 24) |
2736 (fromAscii(lpc[7]) << 28));
2737 machine_id->as_uint32s[3] = u;
2743 HANDLE _dbus_global_lock (const char *mutexname)
2748 mutex = CreateMutexA( NULL, FALSE, mutexname );
2754 gotMutex = WaitForSingleObject( mutex, INFINITE );
2757 case WAIT_ABANDONED:
2758 ReleaseMutex (mutex);
2759 CloseHandle (mutex);
2770 void _dbus_global_unlock (HANDLE mutex)
2772 ReleaseMutex (mutex);
2773 CloseHandle (mutex);
2776 // for proper cleanup in dbus-daemon
2777 static HANDLE hDBusDaemonMutex = NULL;
2778 static HANDLE hDBusSharedMem = NULL;
2779 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2780 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2781 // sync _dbus_get_autolaunch_address
2782 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2783 // mutex to determine if dbus-daemon is already started (per user)
2784 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2785 // named shm for dbus adress info (per user)
2786 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2789 _dbus_get_install_root_as_hash(DBusString *out)
2791 DBusString install_path;
2793 char path[MAX_PATH*2];
2794 int path_size = sizeof(path);
2796 if (!_dbus_get_install_root(path,path_size))
2799 _dbus_string_init(&install_path);
2800 _dbus_string_append(&install_path,path);
2802 _dbus_string_init(out);
2803 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2805 if (!_dbus_sha_compute (&install_path, out))
2812 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2814 _dbus_string_init(out);
2815 _dbus_string_append(out,basestring);
2821 else if (strcmp(scope,"*install-path") == 0
2822 // for 1.3 compatibility
2823 || strcmp(scope,"install-path") == 0)
2826 if (!_dbus_get_install_root_as_hash(&temp))
2828 _dbus_string_free(out);
2831 _dbus_string_append(out,"-");
2832 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2833 _dbus_string_free(&temp);
2835 else if (strcmp(scope,"*user") == 0)
2837 _dbus_string_append(out,"-");
2838 if (!_dbus_append_user_from_current_process(out))
2840 _dbus_string_free(out);
2844 else if (strlen(scope) > 0)
2846 _dbus_string_append(out,"-");
2847 _dbus_string_append(out,scope);
2854 _dbus_get_shm_name (DBusString *out,const char *scope)
2856 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2860 _dbus_get_mutex_name (DBusString *out,const char *scope)
2862 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2866 _dbus_daemon_is_session_bus_address_published (const char *scope)
2869 DBusString mutex_name;
2871 if (!_dbus_get_mutex_name(&mutex_name,scope))
2873 _dbus_string_free( &mutex_name );
2877 if (hDBusDaemonMutex)
2880 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2881 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2883 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2884 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2885 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2887 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2888 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2891 _dbus_global_unlock( lock );
2893 _dbus_string_free( &mutex_name );
2895 if (hDBusDaemonMutex == NULL)
2897 if (GetLastError() == ERROR_ALREADY_EXISTS)
2899 CloseHandle(hDBusDaemonMutex);
2900 hDBusDaemonMutex = NULL;
2903 // mutex wasn't created before, so return false.
2904 // We leave the mutex name allocated for later reusage
2905 // in _dbus_daemon_publish_session_bus_address.
2910 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2913 char *shared_addr = NULL;
2914 DBusString shm_name;
2915 DBusString mutex_name;
2917 _dbus_assert (address);
2919 if (!_dbus_get_mutex_name(&mutex_name,scope))
2921 _dbus_string_free( &mutex_name );
2925 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2926 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2928 if (!hDBusDaemonMutex)
2930 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2932 _dbus_string_free( &mutex_name );
2934 // acquire the mutex
2935 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2937 _dbus_global_unlock( lock );
2938 CloseHandle( hDBusDaemonMutex );
2942 if (!_dbus_get_shm_name(&shm_name,scope))
2944 _dbus_string_free( &shm_name );
2945 _dbus_global_unlock( lock );
2950 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2951 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2952 _dbus_assert( hDBusSharedMem );
2954 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2956 _dbus_assert (shared_addr);
2958 strcpy( shared_addr, address);
2961 UnmapViewOfFile( shared_addr );
2963 _dbus_global_unlock( lock );
2964 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2966 _dbus_string_free( &shm_name );
2971 _dbus_daemon_unpublish_session_bus_address (void)
2975 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2976 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2978 CloseHandle( hDBusSharedMem );
2980 hDBusSharedMem = NULL;
2982 ReleaseMutex( hDBusDaemonMutex );
2984 CloseHandle( hDBusDaemonMutex );
2986 hDBusDaemonMutex = NULL;
2988 _dbus_global_unlock( lock );
2992 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
3000 // we know that dbus-daemon is available, so we wait until shm is available
3001 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
3002 if( sharedMem == 0 )
3004 if ( sharedMem != 0)
3008 if( sharedMem == 0 )
3011 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
3016 _dbus_string_init( address );
3018 _dbus_string_append( address, shared_addr );
3021 UnmapViewOfFile( shared_addr );
3023 CloseHandle( sharedMem );
3029 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
3033 DBusString mutex_name;
3034 dbus_bool_t bRet = TRUE;
3036 if (!_dbus_get_mutex_name(&mutex_name,scope))
3038 _dbus_string_free( &mutex_name );
3042 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3043 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3046 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3047 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3049 ReleaseMutex (daemon);
3050 CloseHandle (daemon);
3052 _dbus_global_unlock( lock );
3053 _dbus_string_free( &mutex_name );
3058 bRet = _dbus_get_autolaunch_shm( address, shm_name );
3061 CloseHandle ( daemon );
3063 _dbus_global_unlock( lock );
3064 _dbus_string_free( &mutex_name );
3070 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3075 PROCESS_INFORMATION pi;
3076 dbus_bool_t retval = FALSE;
3078 char dbus_exe_path[MAX_PATH];
3079 char dbus_args[MAX_PATH * 2];
3080 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3081 DBusString shm_name;
3083 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3085 if (!_dbus_get_shm_name(&shm_name,scope))
3087 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3091 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3093 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3095 _dbus_verbose( "found running dbus daemon at %s\n",
3096 _dbus_string_get_const_data (&shm_name) );
3101 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3103 // Look in directory containing dbus shared library
3105 char dbus_module_path[MAX_PATH];
3108 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3109 "trying path where dbus shared library is located");
3111 hmod = _dbus_win_get_dll_hmodule();
3112 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3115 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3121 char *ext_idx = strrchr(dbus_module_path, '\\');
3124 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3126 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3128 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3129 printf ("or start the daemon manually\n\n");
3132 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3138 ZeroMemory( &si, sizeof(si) );
3140 ZeroMemory( &pi, sizeof(pi) );
3142 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3144 // argv[i] = "--config-file=bus\\session.conf";
3145 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3146 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3148 CloseHandle (pi.hThread);
3149 CloseHandle (pi.hProcess);
3150 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3151 if (retval == FALSE)
3152 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3156 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3162 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3164 _DBUS_ASSERT_ERROR_IS_SET (error);
3166 _dbus_global_unlock (mutex);
3172 /** Makes the file readable by every user in the system.
3174 * @param filename the filename
3175 * @param error error location
3176 * @returns #TRUE if the file's permissions could be changed.
3179 _dbus_make_file_world_readable(const DBusString *filename,
3187 * return the relocated DATADIR
3189 * @returns relocated DATADIR static string
3193 _dbus_windows_get_datadir (void)
3195 return _dbus_replace_install_prefix(DBUS_DATADIR);
3199 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3202 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3203 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3206 * Returns the standard directories for a session bus to look for service
3209 * On Windows this should be data directories:
3211 * %CommonProgramFiles%/dbus
3215 * relocated DBUS_DATADIR
3217 * @param dirs the directory list we are returning
3218 * @returns #FALSE on OOM
3222 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3224 const char *common_progs;
3225 DBusString servicedir_path;
3227 if (!_dbus_string_init (&servicedir_path))
3232 /* On Windows CE, we adjust datadir dynamically to installation location. */
3233 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3235 if (data_dir != NULL)
3237 if (!_dbus_string_append (&servicedir_path, data_dir))
3240 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3246 the code for accessing services requires absolute base pathes
3247 in case DBUS_DATADIR is relative make it absolute
3253 _dbus_string_init_const (&p, DBUS_DATADIR);
3255 if (!_dbus_path_is_absolute (&p))
3257 char install_root[1000];
3258 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3259 if (!_dbus_string_append (&servicedir_path, install_root))
3264 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3267 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3271 common_progs = _dbus_getenv ("CommonProgramFiles");
3273 if (common_progs != NULL)
3275 if (!_dbus_string_append (&servicedir_path, common_progs))
3278 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3282 if (!_dbus_split_paths_and_append (&servicedir_path,
3283 DBUS_STANDARD_SESSION_SERVICEDIR,
3287 _dbus_string_free (&servicedir_path);
3291 _dbus_string_free (&servicedir_path);
3296 * Returns the standard directories for a system bus to look for service
3299 * On UNIX this should be the standard xdg freedesktop.org data directories:
3301 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3307 * On Windows there is no system bus and this function can return nothing.
3309 * @param dirs the directory list we are returning
3310 * @returns #FALSE on OOM
3314 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3321 * Atomically increments an integer
3323 * @param atomic pointer to the integer to increment
3324 * @returns the value before incrementing
3328 _dbus_atomic_inc (DBusAtomic *atomic)
3330 // +/- 1 is needed here!
3331 // no volatile argument with mingw
3332 return InterlockedIncrement (&atomic->value) - 1;
3336 * Atomically decrement an integer
3338 * @param atomic pointer to the integer to decrement
3339 * @returns the value before decrementing
3343 _dbus_atomic_dec (DBusAtomic *atomic)
3345 // +/- 1 is needed here!
3346 // no volatile argument with mingw
3347 return InterlockedDecrement (&atomic->value) + 1;
3351 * Atomically get the value of an integer. It may change at any time
3352 * thereafter, so this is mostly only useful for assertions.
3354 * @param atomic pointer to the integer to get
3355 * @returns the value at this moment
3358 _dbus_atomic_get (DBusAtomic *atomic)
3360 /* In this situation, GLib issues a MemoryBarrier() and then returns
3361 * atomic->value. However, mingw from mingw.org (not to be confused with
3362 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3363 * headers, so we have to get a memory barrier some other way.
3365 * InterlockedIncrement is older, and is documented on MSDN to be a full
3366 * memory barrier, so let's use that.
3370 InterlockedExchange (&dummy, 1);
3372 return atomic->value;
3376 * Called when the bus daemon is signaled to reload its configuration; any
3377 * caches should be nuked. Of course any caches that need explicit reload
3378 * are probably broken, but c'est la vie.
3383 _dbus_flush_caches (void)
3388 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3389 * for Winsock so is abstracted)
3391 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3394 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3396 return errno == WSAEWOULDBLOCK;
3400 * return the absolute path of the dbus installation
3402 * @param s buffer for installation path
3403 * @param len length of buffer
3404 * @returns #FALSE on failure
3407 _dbus_get_install_root(char *prefix, int len)
3409 //To find the prefix, we cut the filename and also \bin\ if present
3413 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3414 if ( pathLength == 0 || GetLastError() != 0 ) {
3418 lastSlash = _mbsrchr(prefix, '\\');
3419 if (lastSlash == NULL) {
3423 //cut off binary name
3426 //cut possible "\\bin"
3428 //this fails if we are in a double-byte system codepage and the
3429 //folder's name happens to end with the *bytes*
3430 //"\\bin"... (I.e. the second byte of some Han character and then
3431 //the Latin "bin", but that is not likely I think...
3432 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3434 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3436 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3443 find config file either from installation or build root according to
3444 the following path layout
3446 bin/dbus-daemon[d].exe
3447 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3448 (the former above is what dbus4win uses, the latter above is
3449 what a "normal" Unix-style "make install" uses)
3452 bin/dbus-daemon[d].exe
3453 bus/<config-file>.conf
3456 _dbus_get_config_file_name(DBusString *config_file, char *s)
3458 char path[MAX_PATH*2];
3459 int path_size = sizeof(path);
3461 if (!_dbus_get_install_root(path,path_size))
3464 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3466 strcat(path,"etc\\");
3468 if (_dbus_file_exists(path))
3470 // find path from executable
3471 if (!_dbus_string_append (config_file, path))
3476 if (!_dbus_get_install_root(path,path_size))
3478 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3480 strcat(path,"etc\\dbus-1\\");
3483 if (_dbus_file_exists(path))
3485 if (!_dbus_string_append (config_file, path))
3490 if (!_dbus_get_install_root(path,path_size))
3492 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3494 strcat(path,"bus\\");
3497 if (_dbus_file_exists(path))
3499 if (!_dbus_string_append (config_file, path))
3508 * Append the absolute path of the system.conf file
3509 * (there is no system bus on Windows so this can just
3510 * return FALSE and print a warning or something)
3512 * @param str the string to append to
3513 * @returns #FALSE if no memory
3516 _dbus_append_system_config_file (DBusString *str)
3518 return _dbus_get_config_file_name(str, "system.conf");
3522 * Append the absolute path of the session.conf file.
3524 * @param str the string to append to
3525 * @returns #FALSE if no memory
3528 _dbus_append_session_config_file (DBusString *str)
3530 return _dbus_get_config_file_name(str, "session.conf");
3533 /* See comment in dbus-sysdeps-unix.c */
3535 _dbus_lookup_session_address (dbus_bool_t *supported,
3536 DBusString *address,
3539 /* Probably fill this in with something based on COM? */
3545 * Appends the directory in which a keyring for the given credentials
3546 * should be stored. The credentials should have either a Windows or
3547 * UNIX user in them. The directory should be an absolute path.
3549 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3550 * be something else, since the dotfile convention is not normal on Windows.
3552 * @param directory string to append directory to
3553 * @param credentials credentials the directory should be for
3555 * @returns #FALSE on no memory
3558 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3559 DBusCredentials *credentials)
3563 const char *homepath;
3564 const char *homedrive;
3566 _dbus_assert (credentials != NULL);
3567 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3569 if (!_dbus_string_init (&homedir))
3572 homedrive = _dbus_getenv("HOMEDRIVE");
3573 if (homedrive != NULL && *homedrive != '\0')
3575 _dbus_string_append(&homedir,homedrive);
3578 homepath = _dbus_getenv("HOMEPATH");
3579 if (homepath != NULL && *homepath != '\0')
3581 _dbus_string_append(&homedir,homepath);
3584 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3586 const char *override;
3588 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3589 if (override != NULL && *override != '\0')
3591 _dbus_string_set_length (&homedir, 0);
3592 if (!_dbus_string_append (&homedir, override))
3595 _dbus_verbose ("Using fake homedir for testing: %s\n",
3596 _dbus_string_get_const_data (&homedir));
3600 static dbus_bool_t already_warned = FALSE;
3601 if (!already_warned)
3603 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3604 already_warned = TRUE;
3611 /* It's not possible to create a .something directory in Windows CE
3612 using the file explorer. */
3613 #define KEYRING_DIR "dbus-keyrings"
3615 #define KEYRING_DIR ".dbus-keyrings"
3618 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3619 if (!_dbus_concat_dir_and_file (&homedir,
3623 if (!_dbus_string_copy (&homedir, 0,
3624 directory, _dbus_string_get_length (directory))) {
3628 _dbus_string_free (&homedir);
3632 _dbus_string_free (&homedir);
3636 /** Checks if a file exists
3638 * @param file full path to the file
3639 * @returns #TRUE if file exists
3642 _dbus_file_exists (const char *file)
3644 DWORD attributes = GetFileAttributesA (file);
3646 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3653 * A wrapper around strerror() because some platforms
3654 * may be lame and not have strerror().
3656 * @param error_number errno.
3657 * @returns error description.
3660 _dbus_strerror (int error_number)
3668 switch (error_number)
3671 return "Interrupted function call";
3673 return "Permission denied";
3675 return "Bad address";
3677 return "Invalid argument";
3679 return "Too many open files";
3680 case WSAEWOULDBLOCK:
3681 return "Resource temporarily unavailable";
3682 case WSAEINPROGRESS:
3683 return "Operation now in progress";
3685 return "Operation already in progress";
3687 return "Socket operation on nonsocket";
3688 case WSAEDESTADDRREQ:
3689 return "Destination address required";
3691 return "Message too long";
3693 return "Protocol wrong type for socket";
3694 case WSAENOPROTOOPT:
3695 return "Bad protocol option";
3696 case WSAEPROTONOSUPPORT:
3697 return "Protocol not supported";
3698 case WSAESOCKTNOSUPPORT:
3699 return "Socket type not supported";
3701 return "Operation not supported";
3702 case WSAEPFNOSUPPORT:
3703 return "Protocol family not supported";
3704 case WSAEAFNOSUPPORT:
3705 return "Address family not supported by protocol family";
3707 return "Address already in use";
3708 case WSAEADDRNOTAVAIL:
3709 return "Cannot assign requested address";
3711 return "Network is down";
3712 case WSAENETUNREACH:
3713 return "Network is unreachable";
3715 return "Network dropped connection on reset";
3716 case WSAECONNABORTED:
3717 return "Software caused connection abort";
3719 return "Connection reset by peer";
3721 return "No buffer space available";
3723 return "Socket is already connected";
3725 return "Socket is not connected";
3727 return "Cannot send after socket shutdown";
3729 return "Connection timed out";
3730 case WSAECONNREFUSED:
3731 return "Connection refused";
3733 return "Host is down";
3734 case WSAEHOSTUNREACH:
3735 return "No route to host";
3737 return "Too many processes";
3739 return "Graceful shutdown in progress";
3740 case WSATYPE_NOT_FOUND:
3741 return "Class type not found";
3742 case WSAHOST_NOT_FOUND:
3743 return "Host not found";
3745 return "Nonauthoritative host not found";
3746 case WSANO_RECOVERY:
3747 return "This is a nonrecoverable error";
3749 return "Valid name, no data record of requested type";
3750 case WSA_INVALID_HANDLE:
3751 return "Specified event object handle is invalid";
3752 case WSA_INVALID_PARAMETER:
3753 return "One or more parameters are invalid";
3754 case WSA_IO_INCOMPLETE:
3755 return "Overlapped I/O event object not in signaled state";
3756 case WSA_IO_PENDING:
3757 return "Overlapped operations will complete later";
3758 case WSA_NOT_ENOUGH_MEMORY:
3759 return "Insufficient memory available";
3760 case WSA_OPERATION_ABORTED:
3761 return "Overlapped operation aborted";
3762 #ifdef WSAINVALIDPROCTABLE
3764 case WSAINVALIDPROCTABLE:
3765 return "Invalid procedure table from service provider";
3767 #ifdef WSAINVALIDPROVIDER
3769 case WSAINVALIDPROVIDER:
3770 return "Invalid service provider version number";
3772 #ifdef WSAPROVIDERFAILEDINIT
3774 case WSAPROVIDERFAILEDINIT:
3775 return "Unable to initialize a service provider";
3778 case WSASYSCALLFAILURE:
3779 return "System call failure";
3781 msg = strerror (error_number);
3790 * Assigns an error name and message corresponding to a Win32 error
3791 * code to a DBusError. Does nothing if error is #NULL.
3793 * @param error the error.
3794 * @param code the Win32 error code
3797 _dbus_win_set_error_from_win_error (DBusError *error,
3802 /* As we want the English message, use the A API */
3803 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3804 FORMAT_MESSAGE_IGNORE_INSERTS |
3805 FORMAT_MESSAGE_FROM_SYSTEM,
3806 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3807 (LPSTR) &msg, 0, NULL);
3812 msg_copy = dbus_malloc (strlen (msg));
3813 strcpy (msg_copy, msg);
3816 dbus_set_error (error, "win32.error", "%s", msg_copy);
3819 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3823 _dbus_win_warn_win_error (const char *message,
3828 dbus_error_init (&error);
3829 _dbus_win_set_error_from_win_error (&error, code);
3830 _dbus_warn ("%s: %s\n", message, error.message);
3831 dbus_error_free (&error);
3835 * Removes a directory; Directory must be empty
3837 * @param filename directory filename
3838 * @param error initialized error object
3839 * @returns #TRUE on success
3842 _dbus_delete_directory (const DBusString *filename,
3845 const char *filename_c;
3847 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3849 filename_c = _dbus_string_get_const_data (filename);
3851 if (RemoveDirectoryA (filename_c) == 0)
3853 char *emsg = _dbus_win_error_string (GetLastError ());
3854 dbus_set_error (error, _dbus_win_error_from_last_error (),
3855 "Failed to remove directory %s: %s",
3857 _dbus_win_free_error_string (emsg);
3865 * Checks whether the filename is an absolute path
3867 * @param filename the filename
3868 * @returns #TRUE if an absolute path
3871 _dbus_path_is_absolute (const DBusString *filename)
3873 if (_dbus_string_get_length (filename) > 0)
3874 return _dbus_string_get_byte (filename, 1) == ':'
3875 || _dbus_string_get_byte (filename, 0) == '\\'
3876 || _dbus_string_get_byte (filename, 0) == '/';
3882 _dbus_check_setuid (void)
3887 /** @} end of sysdeps-win */
3888 /* tests in dbus-sysdeps-util.c */