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");
130 lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
131 if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
138 dbus_pid_t get_pid_from_extended_tcp_table(int peer_port)
141 DWORD errorCode, size, i;
142 MIB_TCPTABLE_OWNER_PID *tcp_table;
145 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
147 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
148 if (tcp_table == NULL)
150 _dbus_verbose ("Error allocating memory\n");
155 if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
157 _dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
158 dbus_free (tcp_table);
163 for (i = 0; i < tcp_table->dwNumEntries; i++)
165 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
166 int local_address = ntohl (p->dwLocalAddr);
167 int local_port = ntohs (p->dwLocalPort);
168 if (p->dwState == MIB_TCP_STATE_ESTAB
169 && local_address == INADDR_LOOPBACK && local_port == peer_port)
170 result = p->dwOwningPid;
173 _dbus_verbose ("got pid %d\n", (int)result);
174 dbus_free (tcp_table);
178 dbus_pid_t get_pid_from_tcp_ex_table(int peer_port)
182 PMIB_TCPTABLE_EX tcp_table = NULL;
184 if (!load_ex_ip_helper_procedures ())
187 ("Error not been able to load iphelper procedures\n");
191 errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
193 if (errorCode != NO_ERROR)
196 ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
201 for (i = 0; i < tcp_table->dwNumEntries; i++)
203 _MIB_TCPROW_EX *p = &tcp_table->table[i];
204 int local_port = ntohs (p->dwLocalPort);
205 int local_address = ntohl (p->dwLocalAddr);
206 if (local_address == INADDR_LOOPBACK && local_port == peer_port)
208 result = p->dwOwningPid;
213 HeapFree (GetProcessHeap(), 0, tcp_table);
214 _dbus_verbose ("got pid %d\n", (int)result);
219 * @brief return peer process id from tcp handle for localhost connections
220 * @param handle tcp socket descriptor
221 * @return process id or 0 in case the process id could not be fetched
224 _dbus_get_peer_pid_from_tcp_handle (int handle)
226 struct sockaddr_storage addr;
227 socklen_t len = sizeof (addr);
231 dbus_bool_t is_localhost = FALSE;
233 getpeername (handle, (struct sockaddr *) &addr, &len);
235 if (addr.ss_family == AF_INET)
237 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
238 peer_port = ntohs (s->sin_port);
239 is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
241 else if (addr.ss_family == AF_INET6)
243 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
246 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
247 peer_port = ntohs (s->sin6_port);
248 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
249 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
254 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
260 _dbus_verbose ("could not fetch process id from remote process\n");
267 ("Error not been able to fetch tcp peer port from connection\n");
271 _dbus_verbose ("\n");
273 result = get_pid_from_extended_tcp_table(peer_port);
276 result = get_pid_from_tcp_ex_table(peer_port);
280 /* Convert GetLastError() to a dbus error. */
282 _dbus_win_error_from_last_error (void)
284 switch (GetLastError())
287 return DBUS_ERROR_FAILED;
289 case ERROR_NO_MORE_FILES:
290 case ERROR_TOO_MANY_OPEN_FILES:
291 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
293 case ERROR_ACCESS_DENIED:
294 case ERROR_CANNOT_MAKE:
295 return DBUS_ERROR_ACCESS_DENIED;
297 case ERROR_NOT_ENOUGH_MEMORY:
298 return DBUS_ERROR_NO_MEMORY;
300 case ERROR_FILE_EXISTS:
301 return DBUS_ERROR_FILE_EXISTS;
303 case ERROR_FILE_NOT_FOUND:
304 case ERROR_PATH_NOT_FOUND:
305 return DBUS_ERROR_FILE_NOT_FOUND;
308 return DBUS_ERROR_FAILED;
313 _dbus_win_error_string (int error_number)
317 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
318 FORMAT_MESSAGE_IGNORE_INSERTS |
319 FORMAT_MESSAGE_FROM_SYSTEM,
320 NULL, error_number, 0,
321 (LPSTR) &msg, 0, NULL);
323 if (msg[strlen (msg) - 1] == '\n')
324 msg[strlen (msg) - 1] = '\0';
325 if (msg[strlen (msg) - 1] == '\r')
326 msg[strlen (msg) - 1] = '\0';
332 _dbus_win_free_error_string (char *string)
343 * Thin wrapper around the read() system call that appends
344 * the data it reads to the DBusString buffer. It appends
345 * up to the given count, and returns the same value
346 * and same errno as read(). The only exception is that
347 * _dbus_read_socket() handles EINTR for you.
348 * _dbus_read_socket() can return ENOMEM, even though
349 * regular UNIX read doesn't.
351 * @param fd the file descriptor to read from
352 * @param buffer the buffer to append data to
353 * @param count the amount of data to read
354 * @returns the number of bytes read or -1
358 _dbus_read_socket (int fd,
366 _dbus_assert (count >= 0);
368 start = _dbus_string_get_length (buffer);
370 if (!_dbus_string_lengthen (buffer, count))
372 _dbus_win_set_errno (ENOMEM);
376 data = _dbus_string_get_data_len (buffer, start, count);
380 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
381 bytes_read = recv (fd, data, count, 0);
383 if (bytes_read == SOCKET_ERROR)
385 DBUS_SOCKET_SET_ERRNO();
386 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
390 _dbus_verbose ("recv: = %d\n", bytes_read);
398 /* put length back (note that this doesn't actually realloc anything) */
399 _dbus_string_set_length (buffer, start);
405 /* put length back (doesn't actually realloc) */
406 _dbus_string_set_length (buffer, start + bytes_read);
410 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
418 * Thin wrapper around the write() system call that writes a part of a
419 * DBusString and handles EINTR for you.
421 * @param fd the file descriptor to write
422 * @param buffer the buffer to write data from
423 * @param start the first byte in the buffer to write
424 * @param len the number of bytes to try to write
425 * @returns the number of bytes written or -1 on error
428 _dbus_write_socket (int fd,
429 const DBusString *buffer,
436 data = _dbus_string_get_const_data_len (buffer, start, len);
440 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
441 bytes_written = send (fd, data, len, 0);
443 if (bytes_written == SOCKET_ERROR)
445 DBUS_SOCKET_SET_ERRNO();
446 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
450 _dbus_verbose ("send: = %d\n", bytes_written);
452 if (bytes_written < 0 && errno == EINTR)
456 if (bytes_written > 0)
457 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
460 return bytes_written;
465 * Closes a file descriptor.
467 * @param fd the file descriptor
468 * @param error error object
469 * @returns #FALSE if error set
472 _dbus_close_socket (int fd,
475 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
478 if (closesocket (fd) == SOCKET_ERROR)
480 DBUS_SOCKET_SET_ERRNO ();
485 dbus_set_error (error, _dbus_error_from_errno (errno),
486 "Could not close socket: socket=%d, , %s",
487 fd, _dbus_strerror_from_errno ());
490 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
496 * Sets the file descriptor to be close
497 * on exec. Should be called for all file
498 * descriptors in D-Bus code.
500 * @param fd the file descriptor
503 _dbus_fd_set_close_on_exec (intptr_t handle)
505 if ( !SetHandleInformation( (HANDLE) handle,
506 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
507 0 /*disable both flags*/ ) )
509 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
514 * Sets a file descriptor to be nonblocking.
516 * @param fd the file descriptor.
517 * @param error address of error location.
518 * @returns #TRUE on success.
521 _dbus_set_fd_nonblocking (int handle,
526 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
528 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
530 DBUS_SOCKET_SET_ERRNO ();
531 dbus_set_error (error, _dbus_error_from_errno (errno),
532 "Failed to set socket %d:%d to nonblocking: %s", handle,
533 _dbus_strerror_from_errno ());
542 * Like _dbus_write() but will use writev() if possible
543 * to write both buffers in sequence. The return value
544 * is the number of bytes written in the first buffer,
545 * plus the number written in the second. If the first
546 * buffer is written successfully and an error occurs
547 * writing the second, the number of bytes in the first
548 * is returned (i.e. the error is ignored), on systems that
549 * don't have writev. Handles EINTR for you.
550 * The second buffer may be #NULL.
552 * @param fd the file descriptor
553 * @param buffer1 first buffer
554 * @param start1 first byte to write in first buffer
555 * @param len1 number of bytes to write from first buffer
556 * @param buffer2 second buffer, or #NULL
557 * @param start2 first byte to write in second buffer
558 * @param len2 number of bytes to write in second buffer
559 * @returns total bytes written from both buffers, or -1 on error
562 _dbus_write_socket_two (int fd,
563 const DBusString *buffer1,
566 const DBusString *buffer2,
576 _dbus_assert (buffer1 != NULL);
577 _dbus_assert (start1 >= 0);
578 _dbus_assert (start2 >= 0);
579 _dbus_assert (len1 >= 0);
580 _dbus_assert (len2 >= 0);
583 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
586 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
594 vectors[0].buf = (char*) data1;
595 vectors[0].len = len1;
596 vectors[1].buf = (char*) data2;
597 vectors[1].len = len2;
601 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
610 if (rc == SOCKET_ERROR)
612 DBUS_SOCKET_SET_ERRNO ();
613 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
617 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
619 if (bytes_written < 0 && errno == EINTR)
622 return bytes_written;
626 _dbus_socket_is_invalid (int fd)
628 return fd == INVALID_SOCKET ? TRUE : FALSE;
634 * Opens the client side of a Windows named pipe. The connection D-BUS
635 * file descriptor index is returned. It is set up as nonblocking.
637 * @param path the path to named pipe socket
638 * @param error return location for error code
639 * @returns connection D-BUS file descriptor or -1 on error
642 _dbus_connect_named_pipe (const char *path,
645 _dbus_assert_not_reached ("not implemented");
653 _dbus_win_startup_winsock (void)
655 /* Straight from MSDN, deuglified */
657 static dbus_bool_t beenhere = FALSE;
659 WORD wVersionRequested;
666 wVersionRequested = MAKEWORD (2, 0);
668 err = WSAStartup (wVersionRequested, &wsaData);
671 _dbus_assert_not_reached ("Could not initialize WinSock");
675 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
676 * supports versions greater than 2.0 in addition to 2.0, it will
677 * still return 2.0 in wVersion since that is the version we
680 if (LOBYTE (wsaData.wVersion) != 2 ||
681 HIBYTE (wsaData.wVersion) != 0)
683 _dbus_assert_not_reached ("No usable WinSock found");
698 /************************************************************************
702 ************************************************************************/
705 * Measure the message length without terminating nul
707 int _dbus_printf_string_upper_bound (const char *format,
710 /* MSVCRT's vsnprintf semantics are a bit different */
716 bufsize = sizeof (buf);
717 DBUS_VA_COPY (args_copy, args);
718 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
721 while (len == -1) /* try again */
727 p = malloc (bufsize);
732 DBUS_VA_COPY (args_copy, args);
733 len = _vsnprintf (p, bufsize - 1, format, args_copy);
743 * Returns the UTF-16 form of a UTF-8 string. The result should be
744 * freed with dbus_free() when no longer needed.
746 * @param str the UTF-8 string
747 * @param error return location for error code
750 _dbus_win_utf8_to_utf16 (const char *str,
757 _dbus_string_init_const (&s, str);
759 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
761 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
765 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
769 _dbus_win_set_error_from_win_error (error, GetLastError ());
773 retval = dbus_new (wchar_t, n);
777 _DBUS_SET_OOM (error);
781 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
784 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
792 * Returns the UTF-8 form of a UTF-16 string. The result should be
793 * freed with dbus_free() when no longer needed.
795 * @param str the UTF-16 string
796 * @param error return location for error code
799 _dbus_win_utf16_to_utf8 (const wchar_t *str,
805 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
809 _dbus_win_set_error_from_win_error (error, GetLastError ());
813 retval = dbus_malloc (n);
817 _DBUS_SET_OOM (error);
821 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
824 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
836 /************************************************************************
839 ************************************************************************/
842 _dbus_win_account_to_sid (const wchar_t *waccount,
846 dbus_bool_t retval = FALSE;
847 DWORD sid_length, wdomain_length;
855 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
856 NULL, &wdomain_length, &use) &&
857 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
859 _dbus_win_set_error_from_win_error (error, GetLastError ());
863 *ppsid = dbus_malloc (sid_length);
866 _DBUS_SET_OOM (error);
870 wdomain = dbus_new (wchar_t, wdomain_length);
873 _DBUS_SET_OOM (error);
877 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
878 wdomain, &wdomain_length, &use))
880 _dbus_win_set_error_from_win_error (error, GetLastError ());
884 if (!IsValidSid ((PSID) *ppsid))
886 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
904 /** @} end of sysdeps-win */
908 * The only reason this is separate from _dbus_getpid() is to allow it
909 * on Windows for logging but not for other purposes.
911 * @returns process ID to put in log messages
914 _dbus_pid_for_log (void)
916 return _dbus_getpid ();
921 static BOOL is_winxp_sp3_or_lower()
923 OSVERSIONINFOEX osvi;
924 DWORDLONG dwlConditionMask = 0;
925 int op=VER_LESS_EQUAL;
927 // Initialize the OSVERSIONINFOEX structure.
929 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
930 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
931 osvi.dwMajorVersion = 5;
932 osvi.dwMinorVersion = 1;
933 osvi.wServicePackMajor = 3;
934 osvi.wServicePackMinor = 0;
936 // Initialize the condition mask.
938 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
939 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
940 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
941 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
945 return VerifyVersionInfo(
947 VER_MAJORVERSION | VER_MINORVERSION |
948 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
953 * @param sid points to sid buffer, need to be freed with LocalFree()
954 * @param process_id the process id for which the sid should be returned
955 * @returns process sid
958 _dbus_getsid(char **sid, dbus_pid_t process_id)
960 HANDLE process_token = INVALID_HANDLE_VALUE;
961 TOKEN_USER *token_user = NULL;
966 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
968 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
970 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
973 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
974 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
975 || (token_user = alloca (n)) == NULL
976 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
978 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
981 psid = token_user->User.Sid;
982 if (!IsValidSid (psid))
984 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
987 if (!ConvertSidToStringSidA (psid, sid))
989 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
996 CloseHandle (process_handle);
997 if (process_token != INVALID_HANDLE_VALUE)
998 CloseHandle (process_token);
1000 _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
1005 /************************************************************************
1009 ************************************************************************/
1012 * Creates a full-duplex pipe (as in socketpair()).
1013 * Sets both ends of the pipe nonblocking.
1015 * @param fd1 return location for one end
1016 * @param fd2 return location for the other end
1017 * @param blocking #TRUE if pipe should be blocking
1018 * @param error error return
1019 * @returns #FALSE on failure (if error is set)
1022 _dbus_full_duplex_pipe (int *fd1,
1024 dbus_bool_t blocking,
1027 SOCKET temp, socket1 = -1, socket2 = -1;
1028 struct sockaddr_in saddr;
1032 _dbus_win_startup_winsock ();
1034 temp = socket (AF_INET, SOCK_STREAM, 0);
1035 if (temp == INVALID_SOCKET)
1037 DBUS_SOCKET_SET_ERRNO ();
1042 saddr.sin_family = AF_INET;
1044 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1046 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1048 DBUS_SOCKET_SET_ERRNO ();
1052 if (listen (temp, 1) == SOCKET_ERROR)
1054 DBUS_SOCKET_SET_ERRNO ();
1058 len = sizeof (saddr);
1059 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1061 DBUS_SOCKET_SET_ERRNO ();
1065 socket1 = socket (AF_INET, SOCK_STREAM, 0);
1066 if (socket1 == INVALID_SOCKET)
1068 DBUS_SOCKET_SET_ERRNO ();
1072 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1074 DBUS_SOCKET_SET_ERRNO ();
1078 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1079 if (socket2 == INVALID_SOCKET)
1081 DBUS_SOCKET_SET_ERRNO ();
1088 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1090 DBUS_SOCKET_SET_ERRNO ();
1095 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1097 DBUS_SOCKET_SET_ERRNO ();
1105 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1106 *fd1, socket1, *fd2, socket2);
1113 closesocket (socket2);
1115 closesocket (socket1);
1119 dbus_set_error (error, _dbus_error_from_errno (errno),
1120 "Could not setup socket pair: %s",
1121 _dbus_strerror_from_errno ());
1127 * Wrapper for poll().
1129 * @param fds the file descriptors to poll
1130 * @param n_fds number of descriptors in the array
1131 * @param timeout_milliseconds timeout or -1 for infinite
1132 * @returns numbers of fds with revents, or <0 on error
1135 _dbus_poll (DBusPollFD *fds,
1137 int timeout_milliseconds)
1139 #define USE_CHRIS_IMPL 0
1143 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1144 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1152 #define DBUS_STACK_WSAEVENTS 256
1153 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1154 WSAEVENT *pEvents = NULL;
1155 if (n_fds > DBUS_STACK_WSAEVENTS)
1156 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1158 pEvents = eventsOnStack;
1161 #ifdef DBUS_ENABLE_VERBOSE_MODE
1163 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1164 for (i = 0; i < n_fds; i++)
1166 DBusPollFD *fdp = &fds[i];
1169 if (fdp->events & _DBUS_POLLIN)
1170 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1172 if (fdp->events & _DBUS_POLLOUT)
1173 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1175 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1177 // FIXME: more robust code for long msg
1178 // create on heap when msg[] becomes too small
1179 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1181 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1185 msgp += sprintf (msgp, "\n");
1186 _dbus_verbose ("%s",msg);
1188 for (i = 0; i < n_fds; i++)
1190 DBusPollFD *fdp = &fds[i];
1192 long lNetworkEvents = FD_OOB;
1194 ev = WSACreateEvent();
1196 if (fdp->events & _DBUS_POLLIN)
1197 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1199 if (fdp->events & _DBUS_POLLOUT)
1200 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1202 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1208 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1210 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1212 DBUS_SOCKET_SET_ERRNO ();
1213 if (errno != WSAEWOULDBLOCK)
1214 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1217 else if (ready == WSA_WAIT_TIMEOUT)
1219 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1222 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1225 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1227 for (i = 0; i < n_fds; i++)
1229 DBusPollFD *fdp = &fds[i];
1230 WSANETWORKEVENTS ne;
1234 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1236 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1237 fdp->revents |= _DBUS_POLLIN;
1239 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1240 fdp->revents |= _DBUS_POLLOUT;
1242 if (ne.lNetworkEvents & (FD_OOB))
1243 fdp->revents |= _DBUS_POLLERR;
1245 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1246 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1248 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1249 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1251 if (ne.lNetworkEvents & (FD_OOB))
1252 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1254 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1256 if(ne.lNetworkEvents)
1259 WSAEventSelect(fdp->fd, pEvents[i], 0);
1262 msgp += sprintf (msgp, "\n");
1263 _dbus_verbose ("%s",msg);
1267 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1271 for(i = 0; i < n_fds; i++)
1273 WSACloseEvent(pEvents[i]);
1276 if (n_fds > DBUS_STACK_WSAEVENTS)
1281 #else /* USE_CHRIS_IMPL */
1283 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1284 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1287 fd_set read_set, write_set, err_set;
1293 FD_ZERO (&read_set);
1294 FD_ZERO (&write_set);
1298 #ifdef DBUS_ENABLE_VERBOSE_MODE
1300 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1301 for (i = 0; i < n_fds; i++)
1303 DBusPollFD *fdp = &fds[i];
1306 if (fdp->events & _DBUS_POLLIN)
1307 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1309 if (fdp->events & _DBUS_POLLOUT)
1310 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1312 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1314 // FIXME: more robust code for long msg
1315 // create on heap when msg[] becomes too small
1316 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1318 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1322 msgp += sprintf (msgp, "\n");
1323 _dbus_verbose ("%s",msg);
1325 for (i = 0; i < n_fds; i++)
1327 DBusPollFD *fdp = &fds[i];
1329 if (fdp->events & _DBUS_POLLIN)
1330 FD_SET (fdp->fd, &read_set);
1332 if (fdp->events & _DBUS_POLLOUT)
1333 FD_SET (fdp->fd, &write_set);
1335 FD_SET (fdp->fd, &err_set);
1337 max_fd = MAX (max_fd, fdp->fd);
1340 // Avoid random lockups with send(), for lack of a better solution so far
1341 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1342 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1344 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1346 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1348 DBUS_SOCKET_SET_ERRNO ();
1349 if (errno != WSAEWOULDBLOCK)
1350 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1352 else if (ready == 0)
1353 _dbus_verbose ("select: = 0\n");
1357 #ifdef DBUS_ENABLE_VERBOSE_MODE
1359 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1361 for (i = 0; i < n_fds; i++)
1363 DBusPollFD *fdp = &fds[i];
1365 if (FD_ISSET (fdp->fd, &read_set))
1366 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1368 if (FD_ISSET (fdp->fd, &write_set))
1369 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1371 if (FD_ISSET (fdp->fd, &err_set))
1372 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1374 msgp += sprintf (msgp, "\n");
1375 _dbus_verbose ("%s",msg);
1378 for (i = 0; i < n_fds; i++)
1380 DBusPollFD *fdp = &fds[i];
1384 if (FD_ISSET (fdp->fd, &read_set))
1385 fdp->revents |= _DBUS_POLLIN;
1387 if (FD_ISSET (fdp->fd, &write_set))
1388 fdp->revents |= _DBUS_POLLOUT;
1390 if (FD_ISSET (fdp->fd, &err_set))
1391 fdp->revents |= _DBUS_POLLERR;
1395 #endif /* USE_CHRIS_IMPL */
1401 /******************************************************************************
1403 Original CVS version of dbus-sysdeps.c
1405 ******************************************************************************/
1406 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1407 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1409 * Copyright (C) 2002, 2003 Red Hat, Inc.
1410 * Copyright (C) 2003 CodeFactory AB
1411 * Copyright (C) 2005 Novell, Inc.
1413 * Licensed under the Academic Free License version 2.1
1415 * This program is free software; you can redistribute it and/or modify
1416 * it under the terms of the GNU General Public License as published by
1417 * the Free Software Foundation; either version 2 of the License, or
1418 * (at your option) any later version.
1420 * This program is distributed in the hope that it will be useful,
1421 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1422 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1423 * GNU General Public License for more details.
1425 * You should have received a copy of the GNU General Public License
1426 * along with this program; if not, write to the Free Software
1427 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1433 * Exit the process, returning the given value.
1435 * @param code the exit code
1438 _dbus_exit (int code)
1444 * Creates a socket and connects to a socket at the given host
1445 * and port. The connection fd is returned, and is set up as
1448 * @param host the host name to connect to
1449 * @param port the port to connect to
1450 * @param family the address family to listen on, NULL for all
1451 * @param error return location for error code
1452 * @returns connection file descriptor or -1 on error
1455 _dbus_connect_tcp_socket (const char *host,
1460 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1464 _dbus_connect_tcp_socket_with_nonce (const char *host,
1467 const char *noncefile,
1471 struct addrinfo hints;
1472 struct addrinfo *ai, *tmp;
1474 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1476 _dbus_win_startup_winsock ();
1481 hints.ai_family = AF_UNSPEC;
1482 else if (!strcmp(family, "ipv4"))
1483 hints.ai_family = AF_INET;
1484 else if (!strcmp(family, "ipv6"))
1485 hints.ai_family = AF_INET6;
1488 dbus_set_error (error,
1489 DBUS_ERROR_INVALID_ARGS,
1490 "Unknown address family %s", family);
1493 hints.ai_protocol = IPPROTO_TCP;
1494 hints.ai_socktype = SOCK_STREAM;
1495 #ifdef AI_ADDRCONFIG
1496 hints.ai_flags = AI_ADDRCONFIG;
1501 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1503 dbus_set_error (error,
1504 _dbus_error_from_errno (res),
1505 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1506 host, port, _dbus_strerror(res), res);
1513 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1515 DBUS_SOCKET_SET_ERRNO ();
1516 dbus_set_error (error,
1517 _dbus_error_from_errno (errno),
1518 "Failed to open socket: %s",
1519 _dbus_strerror_from_errno ());
1523 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1525 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1527 DBUS_SOCKET_SET_ERRNO ();
1540 dbus_set_error (error,
1541 _dbus_error_from_errno (errno),
1542 "Failed to connect to socket \"%s:%s\" %s",
1543 host, port, _dbus_strerror_from_errno ());
1547 if (noncefile != NULL)
1549 DBusString noncefileStr;
1551 if (!_dbus_string_init (&noncefileStr) ||
1552 !_dbus_string_append(&noncefileStr, noncefile))
1555 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1559 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1561 _dbus_string_free (&noncefileStr);
1570 _dbus_fd_set_close_on_exec (fd);
1572 if (!_dbus_set_fd_nonblocking (fd, error))
1582 * Creates a socket and binds it to the given path, then listens on
1583 * the socket. The socket is set to be nonblocking. In case of port=0
1584 * a random free port is used and returned in the port parameter.
1585 * If inaddr_any is specified, the hostname is ignored.
1587 * @param host the host name to listen on
1588 * @param port the port to listen on, if zero a free port will be used
1589 * @param family the address family to listen on, NULL for all
1590 * @param retport string to return the actual port listened on
1591 * @param fds_p location to store returned file descriptors
1592 * @param error return location for errors
1593 * @returns the number of listening file descriptors or -1 on error
1597 _dbus_listen_tcp_socket (const char *host,
1600 DBusString *retport,
1604 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1605 struct addrinfo hints;
1606 struct addrinfo *ai, *tmp;
1608 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1609 //That's required for family == IPv6(which is the default on Vista if family is not given)
1610 //So we use our own union instead of sockaddr_gen:
1613 struct sockaddr Address;
1614 struct sockaddr_in AddressIn;
1615 struct sockaddr_in6 AddressIn6;
1619 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1621 _dbus_win_startup_winsock ();
1626 hints.ai_family = AF_UNSPEC;
1627 else if (!strcmp(family, "ipv4"))
1628 hints.ai_family = AF_INET;
1629 else if (!strcmp(family, "ipv6"))
1630 hints.ai_family = AF_INET6;
1633 dbus_set_error (error,
1634 DBUS_ERROR_INVALID_ARGS,
1635 "Unknown address family %s", family);
1639 hints.ai_protocol = IPPROTO_TCP;
1640 hints.ai_socktype = SOCK_STREAM;
1641 #ifdef AI_ADDRCONFIG
1642 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1644 hints.ai_flags = AI_PASSIVE;
1647 redo_lookup_with_port:
1648 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1650 dbus_set_error (error,
1651 _dbus_error_from_errno (res),
1652 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1653 host ? host : "*", port, _dbus_strerror(res), res);
1660 int fd = -1, *newlisten_fd;
1661 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1663 DBUS_SOCKET_SET_ERRNO ();
1664 dbus_set_error (error,
1665 _dbus_error_from_errno (errno),
1666 "Failed to open socket: %s",
1667 _dbus_strerror_from_errno ());
1670 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1672 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1674 DBUS_SOCKET_SET_ERRNO ();
1675 dbus_set_error (error, _dbus_error_from_errno (errno),
1676 "Failed to bind socket \"%s:%s\": %s",
1677 host ? host : "*", port, _dbus_strerror_from_errno ());
1682 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1684 DBUS_SOCKET_SET_ERRNO ();
1685 dbus_set_error (error, _dbus_error_from_errno (errno),
1686 "Failed to listen on socket \"%s:%s\": %s",
1687 host ? host : "*", port, _dbus_strerror_from_errno ());
1692 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1696 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1697 "Failed to allocate file handle array");
1700 listen_fd = newlisten_fd;
1701 listen_fd[nlisten_fd] = fd;
1704 if (!_dbus_string_get_length(retport))
1706 /* If the user didn't specify a port, or used 0, then
1707 the kernel chooses a port. After the first address
1708 is bound to, we need to force all remaining addresses
1709 to use the same port */
1710 if (!port || !strcmp(port, "0"))
1712 mysockaddr_gen addr;
1713 socklen_t addrlen = sizeof(addr);
1716 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1718 DBUS_SOCKET_SET_ERRNO ();
1719 dbus_set_error (error, _dbus_error_from_errno (errno),
1720 "Failed to resolve port \"%s:%s\": %s",
1721 host ? host : "*", port, _dbus_strerror_from_errno());
1724 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1725 if (!_dbus_string_append(retport, portbuf))
1727 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1731 /* Release current address list & redo lookup */
1732 port = _dbus_string_get_const_data(retport);
1734 goto redo_lookup_with_port;
1738 if (!_dbus_string_append(retport, port))
1740 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1753 _dbus_win_set_errno (WSAEADDRINUSE);
1754 dbus_set_error (error, _dbus_error_from_errno (errno),
1755 "Failed to bind socket \"%s:%s\": %s",
1756 host ? host : "*", port, _dbus_strerror_from_errno ());
1760 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1762 for (i = 0 ; i < nlisten_fd ; i++)
1764 _dbus_fd_set_close_on_exec (listen_fd[i]);
1765 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1778 for (i = 0 ; i < nlisten_fd ; i++)
1779 closesocket (listen_fd[i]);
1780 dbus_free(listen_fd);
1786 * Accepts a connection on a listening socket.
1787 * Handles EINTR for you.
1789 * @param listen_fd the listen file descriptor
1790 * @returns the connection fd of the client, or -1 on error
1793 _dbus_accept (int listen_fd)
1798 client_fd = accept (listen_fd, NULL, NULL);
1800 if (DBUS_SOCKET_IS_INVALID (client_fd))
1802 DBUS_SOCKET_SET_ERRNO ();
1807 _dbus_verbose ("client fd %d accepted\n", client_fd);
1816 _dbus_send_credentials_socket (int handle,
1819 /* FIXME: for the session bus credentials shouldn't matter (?), but
1820 * for the system bus they are presumably essential. A rough outline
1821 * of a way to implement the credential transfer would be this:
1823 * client waits to *read* a byte.
1825 * server creates a named pipe with a random name, sends a byte
1826 * contining its length, and its name.
1828 * client reads the name, connects to it (using Win32 API).
1830 * server waits for connection to the named pipe, then calls
1831 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1832 * calls RevertToSelf(), closes its handles to the named pipe, and
1833 * is done. (Maybe there is some other way to get the SID of a named
1834 * pipe client without having to use impersonation?)
1836 * client closes its handles and is done.
1838 * Ralf: Why not sending credentials over the given this connection ?
1839 * Using named pipes makes it impossible to be connected from a unix client.
1845 _dbus_string_init_const_len (&buf, "\0", 1);
1847 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1849 if (bytes_written < 0 && errno == EINTR)
1852 if (bytes_written < 0)
1854 dbus_set_error (error, _dbus_error_from_errno (errno),
1855 "Failed to write credentials byte: %s",
1856 _dbus_strerror_from_errno ());
1859 else if (bytes_written == 0)
1861 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1862 "wrote zero bytes writing credentials byte");
1867 _dbus_assert (bytes_written == 1);
1868 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1875 * Reads a single byte which must be nul (an error occurs otherwise),
1876 * and reads unix credentials if available. Fills in pid/uid/gid with
1877 * -1 if no credentials are available. Return value indicates whether
1878 * a byte was read, not whether we got valid credentials. On some
1879 * systems, such as Linux, reading/writing the byte isn't actually
1880 * required, but we do it anyway just to avoid multiple codepaths.
1882 * Fails if no byte is available, so you must select() first.
1884 * The point of the byte is that on some systems we have to
1885 * use sendmsg()/recvmsg() to transmit credentials.
1887 * @param client_fd the client file descriptor
1888 * @param credentials struct to fill with credentials of client
1889 * @param error location to store error code
1890 * @returns #TRUE on success
1893 _dbus_read_credentials_socket (int handle,
1894 DBusCredentials *credentials,
1904 // could fail due too OOM
1905 if (_dbus_string_init (&buf))
1907 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1910 _dbus_verbose ("got one zero byte from server\n");
1912 _dbus_string_free (&buf);
1915 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1919 _dbus_credentials_add_pid (credentials, pid);
1921 if (_dbus_getsid (&sid, pid))
1923 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1937 * Checks to make sure the given directory is
1938 * private to the user
1940 * @param dir the name of the directory
1941 * @param error error return
1942 * @returns #FALSE on failure
1945 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1948 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1954 * Appends the given filename to the given directory.
1956 * @todo it might be cute to collapse multiple '/' such as "foo//"
1959 * @param dir the directory name
1960 * @param next_component the filename
1961 * @returns #TRUE on success
1964 _dbus_concat_dir_and_file (DBusString *dir,
1965 const DBusString *next_component)
1967 dbus_bool_t dir_ends_in_slash;
1968 dbus_bool_t file_starts_with_slash;
1970 if (_dbus_string_get_length (dir) == 0 ||
1971 _dbus_string_get_length (next_component) == 0)
1975 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1976 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1978 file_starts_with_slash =
1979 ('/' == _dbus_string_get_byte (next_component, 0) ||
1980 '\\' == _dbus_string_get_byte (next_component, 0));
1982 if (dir_ends_in_slash && file_starts_with_slash)
1984 _dbus_string_shorten (dir, 1);
1986 else if (!(dir_ends_in_slash || file_starts_with_slash))
1988 if (!_dbus_string_append_byte (dir, '\\'))
1992 return _dbus_string_copy (next_component, 0, dir,
1993 _dbus_string_get_length (dir));
1996 /*---------------- DBusCredentials ----------------------------------*/
1999 * Adds the credentials corresponding to the given username.
2001 * @param credentials credentials to fill in
2002 * @param username the username
2003 * @returns #TRUE if the username existed and we got some credentials
2006 _dbus_credentials_add_from_user (DBusCredentials *credentials,
2007 const DBusString *username)
2009 return _dbus_credentials_add_windows_sid (credentials,
2010 _dbus_string_get_const_data(username));
2014 * Adds the credentials of the current process to the
2015 * passed-in credentials object.
2017 * @param credentials credentials to add to
2018 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
2022 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
2024 dbus_bool_t retval = FALSE;
2027 if (!_dbus_getsid(&sid, _dbus_getpid()))
2030 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2033 if (!_dbus_credentials_add_windows_sid (credentials,sid))
2048 * Append to the string the identity we would like to have when we
2049 * authenticate, on UNIX this is the current process UID and on
2050 * Windows something else, probably a Windows SID string. No escaping
2051 * is required, that is done in dbus-auth.c. The username here
2052 * need not be anything human-readable, it can be the machine-readable
2053 * form i.e. a user id.
2055 * @param str the string to append to
2056 * @returns #FALSE on no memory
2057 * @todo to which class belongs this
2060 _dbus_append_user_from_current_process (DBusString *str)
2062 dbus_bool_t retval = FALSE;
2065 if (!_dbus_getsid(&sid, _dbus_getpid()))
2068 retval = _dbus_string_append (str,sid);
2075 * Gets our process ID
2076 * @returns process ID
2081 return GetCurrentProcessId ();
2084 /** nanoseconds in a second */
2085 #define NANOSECONDS_PER_SECOND 1000000000
2086 /** microseconds in a second */
2087 #define MICROSECONDS_PER_SECOND 1000000
2088 /** milliseconds in a second */
2089 #define MILLISECONDS_PER_SECOND 1000
2090 /** nanoseconds in a millisecond */
2091 #define NANOSECONDS_PER_MILLISECOND 1000000
2092 /** microseconds in a millisecond */
2093 #define MICROSECONDS_PER_MILLISECOND 1000
2096 * Sleeps the given number of milliseconds.
2097 * @param milliseconds number of milliseconds
2100 _dbus_sleep_milliseconds (int milliseconds)
2102 Sleep (milliseconds);
2107 * Get current time, as in gettimeofday(). Never uses the monotonic
2110 * @param tv_sec return location for number of seconds
2111 * @param tv_usec return location for number of microseconds
2114 _dbus_get_real_time (long *tv_sec,
2118 dbus_uint64_t time64;
2120 GetSystemTimeAsFileTime (&ft);
2122 memcpy (&time64, &ft, sizeof (time64));
2124 /* Convert from 100s of nanoseconds since 1601-01-01
2125 * to Unix epoch. Yes, this is Y2038 unsafe.
2127 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2131 *tv_sec = time64 / 1000000;
2134 *tv_usec = time64 % 1000000;
2138 * Get current time, as in gettimeofday(). Use the monotonic clock if
2139 * available, to avoid problems when the system time changes.
2141 * @param tv_sec return location for number of seconds
2142 * @param tv_usec return location for number of microseconds
2145 _dbus_get_monotonic_time (long *tv_sec,
2148 /* no implementation yet, fall back to wall-clock time */
2149 _dbus_get_real_time (tv_sec, tv_usec);
2153 * signal (SIGPIPE, SIG_IGN);
2156 _dbus_disable_sigpipe (void)
2161 * Creates a directory; succeeds if the directory
2162 * is created or already existed.
2164 * @param filename directory filename
2165 * @param error initialized error object
2166 * @returns #TRUE on success
2169 _dbus_create_directory (const DBusString *filename,
2172 const char *filename_c;
2174 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2176 filename_c = _dbus_string_get_const_data (filename);
2178 if (!CreateDirectoryA (filename_c, NULL))
2180 if (GetLastError () == ERROR_ALREADY_EXISTS)
2183 dbus_set_error (error, DBUS_ERROR_FAILED,
2184 "Failed to create directory %s: %s\n",
2185 filename_c, _dbus_strerror_from_errno ());
2194 * Generates the given number of random bytes,
2195 * using the best mechanism we can come up with.
2197 * @param str the string
2198 * @param n_bytes the number of random bytes to append to string
2199 * @returns #TRUE on success, #FALSE if no memory
2202 _dbus_generate_random_bytes (DBusString *str,
2209 old_len = _dbus_string_get_length (str);
2211 if (!_dbus_string_lengthen (str, n_bytes))
2214 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2216 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2219 if (!CryptGenRandom (hprov, n_bytes, p))
2221 CryptReleaseContext (hprov, 0);
2225 CryptReleaseContext (hprov, 0);
2231 * Gets the temporary files directory by inspecting the environment variables
2232 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2234 * @returns location of temp directory
2237 _dbus_get_tmpdir(void)
2239 static const char* tmpdir = NULL;
2240 static char buf[1000];
2246 if (!GetTempPathA (sizeof (buf), buf))
2248 _dbus_warn ("GetTempPath failed\n");
2252 /* Drop terminating backslash or slash */
2253 last_slash = _mbsrchr (buf, '\\');
2254 if (last_slash > buf && last_slash[1] == '\0')
2255 last_slash[0] = '\0';
2256 last_slash = _mbsrchr (buf, '/');
2257 if (last_slash > buf && last_slash[1] == '\0')
2258 last_slash[0] = '\0';
2263 _dbus_assert(tmpdir != NULL);
2270 * Deletes the given file.
2272 * @param filename the filename
2273 * @param error error location
2275 * @returns #TRUE if unlink() succeeded
2278 _dbus_delete_file (const DBusString *filename,
2281 const char *filename_c;
2283 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2285 filename_c = _dbus_string_get_const_data (filename);
2287 if (DeleteFileA (filename_c) == 0)
2289 dbus_set_error (error, DBUS_ERROR_FAILED,
2290 "Failed to delete file %s: %s\n",
2291 filename_c, _dbus_strerror_from_errno ());
2299 * replaces the term DBUS_PREFIX in configure_time_path by the
2300 * current dbus installation directory. On unix this function is a noop
2302 * @param configure_time_path
2306 _dbus_replace_install_prefix (const char *configure_time_path)
2309 return configure_time_path;
2311 static char retval[1000];
2312 static char runtime_prefix[1000];
2316 if (!configure_time_path)
2319 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2320 strncmp (configure_time_path, DBUS_PREFIX "/",
2321 strlen (DBUS_PREFIX) + 1))) {
2322 strcat (retval, configure_time_path);
2326 strcpy (retval, runtime_prefix);
2327 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2329 /* Somehow, in some situations, backslashes get collapsed in the string.
2330 * Since windows C library accepts both forward and backslashes as
2331 * path separators, convert all backslashes to forward slashes.
2334 for(i = 0; retval[i] != '\0'; i++) {
2335 if(retval[i] == '\\')
2342 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2344 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2354 * Backtrace Generator
2356 * Copyright 2004 Eric Poech
2357 * Copyright 2004 Robert Shearman
2359 * This library is free software; you can redistribute it and/or
2360 * modify it under the terms of the GNU Lesser General Public
2361 * License as published by the Free Software Foundation; either
2362 * version 2.1 of the License, or (at your option) any later version.
2364 * This library is distributed in the hope that it will be useful,
2365 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2366 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2367 * Lesser General Public License for more details.
2369 * You should have received a copy of the GNU Lesser General Public
2370 * License along with this library; if not, write to the Free Software
2371 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2375 #include <imagehlp.h>
2378 #define DPRINTF _dbus_warn
2386 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2388 //MAKE_FUNCPTR(StackWalk);
2389 //MAKE_FUNCPTR(SymGetModuleBase);
2390 //MAKE_FUNCPTR(SymFunctionTableAccess);
2391 //MAKE_FUNCPTR(SymInitialize);
2392 //MAKE_FUNCPTR(SymGetSymFromAddr);
2393 //MAKE_FUNCPTR(SymGetModuleInfo);
2394 static BOOL (WINAPI *pStackWalk)(
2398 LPSTACKFRAME StackFrame,
2399 PVOID ContextRecord,
2400 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2401 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2402 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2403 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2406 static DWORD64 (WINAPI *pSymGetModuleBase)(
2410 static PVOID (WINAPI *pSymFunctionTableAccess)(
2415 static DWORD (WINAPI *pSymGetModuleBase)(
2419 static PVOID (WINAPI *pSymFunctionTableAccess)(
2424 static BOOL (WINAPI *pSymInitialize)(
2426 PSTR UserSearchPath,
2429 static BOOL (WINAPI *pSymGetSymFromAddr)(
2432 PDWORD Displacement,
2433 PIMAGEHLP_SYMBOL Symbol
2435 static BOOL (WINAPI *pSymGetModuleInfo)(
2438 PIMAGEHLP_MODULE ModuleInfo
2440 static DWORD (WINAPI *pSymSetOptions)(
2445 static BOOL init_backtrace()
2447 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2449 #define GETFUNC(x) \
2450 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2458 // GETFUNC(StackWalk);
2459 // GETFUNC(SymGetModuleBase);
2460 // GETFUNC(SymFunctionTableAccess);
2461 // GETFUNC(SymInitialize);
2462 // GETFUNC(SymGetSymFromAddr);
2463 // GETFUNC(SymGetModuleInfo);
2467 pStackWalk = (BOOL (WINAPI *)(
2471 LPSTACKFRAME StackFrame,
2472 PVOID ContextRecord,
2473 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2474 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2475 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2476 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2477 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2479 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2482 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2483 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2486 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2488 pSymGetModuleBase=(DWORD (WINAPI *)(
2491 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2492 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2495 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2497 pSymInitialize = (BOOL (WINAPI *)(
2499 PSTR UserSearchPath,
2501 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2502 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2505 PDWORD Displacement,
2506 PIMAGEHLP_SYMBOL Symbol
2507 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2508 pSymGetModuleInfo = (BOOL (WINAPI *)(
2511 PIMAGEHLP_MODULE ModuleInfo
2512 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2513 pSymSetOptions = (DWORD (WINAPI *)(
2515 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2518 pSymSetOptions(SYMOPT_UNDNAME);
2520 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2525 static void dump_backtrace_for_thread(HANDLE hThread)
2532 if (!init_backtrace())
2535 /* can't use this function for current thread as GetThreadContext
2536 * doesn't support getting context from current thread */
2537 if (hThread == GetCurrentThread())
2540 DPRINTF("Backtrace:\n");
2542 _DBUS_ZERO(context);
2543 context.ContextFlags = CONTEXT_FULL;
2545 SuspendThread(hThread);
2547 if (!GetThreadContext(hThread, &context))
2549 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2550 ResumeThread(hThread);
2557 sf.AddrFrame.Offset = context.Ebp;
2558 sf.AddrFrame.Mode = AddrModeFlat;
2559 sf.AddrPC.Offset = context.Eip;
2560 sf.AddrPC.Mode = AddrModeFlat;
2561 dwImageType = IMAGE_FILE_MACHINE_I386;
2563 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2564 sf.AddrPC.Offset = context.Rip;
2565 sf.AddrPC.Mode = AddrModeFlat;
2566 sf.AddrFrame.Offset = context.Rsp;
2567 sf.AddrFrame.Mode = AddrModeFlat;
2568 sf.AddrStack.Offset = context.Rsp;
2569 sf.AddrStack.Mode = AddrModeFlat;
2571 dwImageType = IMAGE_FILE_MACHINE_IA64;
2572 sf.AddrPC.Offset = context.StIIP;
2573 sf.AddrPC.Mode = AddrModeFlat;
2574 sf.AddrFrame.Offset = context.IntSp;
2575 sf.AddrFrame.Mode = AddrModeFlat;
2576 sf.AddrBStore.Offset= context.RsBSP;
2577 sf.AddrBStore.Mode = AddrModeFlat;
2578 sf.AddrStack.Offset = context.IntSp;
2579 sf.AddrStack.Mode = AddrModeFlat;
2581 # error You need to fill in the STACKFRAME structure for your architecture
2584 while (pStackWalk(dwImageType, GetCurrentProcess(),
2585 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2586 pSymGetModuleBase, NULL))
2589 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2590 DWORD dwDisplacement;
2592 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2593 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2595 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2596 &dwDisplacement, pSymbol))
2598 IMAGEHLP_MODULE ModuleInfo;
2599 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2601 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2603 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2605 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2606 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2608 else if (dwDisplacement)
2609 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2611 DPRINTF("4\t%s\n", pSymbol->Name);
2614 ResumeThread(hThread);
2617 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2619 dump_backtrace_for_thread((HANDLE)lpParameter);
2623 /* cannot get valid context from current thread, so we have to execute
2624 * backtrace from another thread */
2625 static void dump_backtrace()
2627 HANDLE hCurrentThread;
2630 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2631 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2632 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2634 WaitForSingleObject(hThread, INFINITE);
2635 CloseHandle(hThread);
2636 CloseHandle(hCurrentThread);
2639 #endif /* asserts or tests enabled */
2642 void _dbus_print_backtrace(void)
2648 void _dbus_print_backtrace(void)
2650 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2654 static dbus_uint32_t fromAscii(char ascii)
2656 if(ascii >= '0' && ascii <= '9')
2658 if(ascii >= 'A' && ascii <= 'F')
2659 return ascii - 'A' + 10;
2660 if(ascii >= 'a' && ascii <= 'f')
2661 return ascii - 'a' + 10;
2665 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2666 dbus_bool_t create_if_not_found,
2673 HW_PROFILE_INFOA info;
2674 char *lpc = &info.szHwProfileGuid[0];
2677 // the hw-profile guid lives long enough
2678 if(!GetCurrentHwProfileA(&info))
2680 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2684 // Form: {12340001-4980-1920-6788-123456789012}
2687 u = ((fromAscii(lpc[0]) << 0) |
2688 (fromAscii(lpc[1]) << 4) |
2689 (fromAscii(lpc[2]) << 8) |
2690 (fromAscii(lpc[3]) << 12) |
2691 (fromAscii(lpc[4]) << 16) |
2692 (fromAscii(lpc[5]) << 20) |
2693 (fromAscii(lpc[6]) << 24) |
2694 (fromAscii(lpc[7]) << 28));
2695 machine_id->as_uint32s[0] = u;
2699 u = ((fromAscii(lpc[0]) << 0) |
2700 (fromAscii(lpc[1]) << 4) |
2701 (fromAscii(lpc[2]) << 8) |
2702 (fromAscii(lpc[3]) << 12) |
2703 (fromAscii(lpc[5]) << 16) |
2704 (fromAscii(lpc[6]) << 20) |
2705 (fromAscii(lpc[7]) << 24) |
2706 (fromAscii(lpc[8]) << 28));
2707 machine_id->as_uint32s[1] = u;
2711 u = ((fromAscii(lpc[0]) << 0) |
2712 (fromAscii(lpc[1]) << 4) |
2713 (fromAscii(lpc[2]) << 8) |
2714 (fromAscii(lpc[3]) << 12) |
2715 (fromAscii(lpc[5]) << 16) |
2716 (fromAscii(lpc[6]) << 20) |
2717 (fromAscii(lpc[7]) << 24) |
2718 (fromAscii(lpc[8]) << 28));
2719 machine_id->as_uint32s[2] = u;
2723 u = ((fromAscii(lpc[0]) << 0) |
2724 (fromAscii(lpc[1]) << 4) |
2725 (fromAscii(lpc[2]) << 8) |
2726 (fromAscii(lpc[3]) << 12) |
2727 (fromAscii(lpc[4]) << 16) |
2728 (fromAscii(lpc[5]) << 20) |
2729 (fromAscii(lpc[6]) << 24) |
2730 (fromAscii(lpc[7]) << 28));
2731 machine_id->as_uint32s[3] = u;
2737 HANDLE _dbus_global_lock (const char *mutexname)
2742 mutex = CreateMutexA( NULL, FALSE, mutexname );
2748 gotMutex = WaitForSingleObject( mutex, INFINITE );
2751 case WAIT_ABANDONED:
2752 ReleaseMutex (mutex);
2753 CloseHandle (mutex);
2764 void _dbus_global_unlock (HANDLE mutex)
2766 ReleaseMutex (mutex);
2767 CloseHandle (mutex);
2770 // for proper cleanup in dbus-daemon
2771 static HANDLE hDBusDaemonMutex = NULL;
2772 static HANDLE hDBusSharedMem = NULL;
2773 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2774 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2775 // sync _dbus_get_autolaunch_address
2776 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2777 // mutex to determine if dbus-daemon is already started (per user)
2778 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2779 // named shm for dbus adress info (per user)
2780 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2783 _dbus_get_install_root_as_hash(DBusString *out)
2785 DBusString install_path;
2787 char path[MAX_PATH*2];
2788 int path_size = sizeof(path);
2790 if (!_dbus_get_install_root(path,path_size))
2793 _dbus_string_init(&install_path);
2794 _dbus_string_append(&install_path,path);
2796 _dbus_string_init(out);
2797 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2799 if (!_dbus_sha_compute (&install_path, out))
2806 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2808 _dbus_string_init(out);
2809 _dbus_string_append(out,basestring);
2815 else if (strcmp(scope,"*install-path") == 0
2816 // for 1.3 compatibility
2817 || strcmp(scope,"install-path") == 0)
2820 if (!_dbus_get_install_root_as_hash(&temp))
2822 _dbus_string_free(out);
2825 _dbus_string_append(out,"-");
2826 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2827 _dbus_string_free(&temp);
2829 else if (strcmp(scope,"*user") == 0)
2831 _dbus_string_append(out,"-");
2832 if (!_dbus_append_user_from_current_process(out))
2834 _dbus_string_free(out);
2838 else if (strlen(scope) > 0)
2840 _dbus_string_append(out,"-");
2841 _dbus_string_append(out,scope);
2848 _dbus_get_shm_name (DBusString *out,const char *scope)
2850 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2854 _dbus_get_mutex_name (DBusString *out,const char *scope)
2856 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2860 _dbus_daemon_is_session_bus_address_published (const char *scope)
2863 DBusString mutex_name;
2865 if (!_dbus_get_mutex_name(&mutex_name,scope))
2867 _dbus_string_free( &mutex_name );
2871 if (hDBusDaemonMutex)
2874 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2875 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2877 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2878 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2879 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2881 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2882 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2885 _dbus_global_unlock( lock );
2887 _dbus_string_free( &mutex_name );
2889 if (hDBusDaemonMutex == NULL)
2891 if (GetLastError() == ERROR_ALREADY_EXISTS)
2893 CloseHandle(hDBusDaemonMutex);
2894 hDBusDaemonMutex = NULL;
2897 // mutex wasn't created before, so return false.
2898 // We leave the mutex name allocated for later reusage
2899 // in _dbus_daemon_publish_session_bus_address.
2904 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2907 char *shared_addr = NULL;
2908 DBusString shm_name;
2909 DBusString mutex_name;
2911 _dbus_assert (address);
2913 if (!_dbus_get_mutex_name(&mutex_name,scope))
2915 _dbus_string_free( &mutex_name );
2919 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2920 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2922 if (!hDBusDaemonMutex)
2924 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2926 _dbus_string_free( &mutex_name );
2928 // acquire the mutex
2929 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2931 _dbus_global_unlock( lock );
2932 CloseHandle( hDBusDaemonMutex );
2936 if (!_dbus_get_shm_name(&shm_name,scope))
2938 _dbus_string_free( &shm_name );
2939 _dbus_global_unlock( lock );
2944 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2945 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2946 _dbus_assert( hDBusSharedMem );
2948 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2950 _dbus_assert (shared_addr);
2952 strcpy( shared_addr, address);
2955 UnmapViewOfFile( shared_addr );
2957 _dbus_global_unlock( lock );
2958 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2960 _dbus_string_free( &shm_name );
2965 _dbus_daemon_unpublish_session_bus_address (void)
2969 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2970 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2972 CloseHandle( hDBusSharedMem );
2974 hDBusSharedMem = NULL;
2976 ReleaseMutex( hDBusDaemonMutex );
2978 CloseHandle( hDBusDaemonMutex );
2980 hDBusDaemonMutex = NULL;
2982 _dbus_global_unlock( lock );
2986 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2994 // we know that dbus-daemon is available, so we wait until shm is available
2995 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2996 if( sharedMem == 0 )
2998 if ( sharedMem != 0)
3002 if( sharedMem == 0 )
3005 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
3010 _dbus_string_init( address );
3012 _dbus_string_append( address, shared_addr );
3015 UnmapViewOfFile( shared_addr );
3017 CloseHandle( sharedMem );
3023 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
3027 DBusString mutex_name;
3028 dbus_bool_t bRet = TRUE;
3030 if (!_dbus_get_mutex_name(&mutex_name,scope))
3032 _dbus_string_free( &mutex_name );
3036 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3037 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3040 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3041 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3043 ReleaseMutex (daemon);
3044 CloseHandle (daemon);
3046 _dbus_global_unlock( lock );
3047 _dbus_string_free( &mutex_name );
3052 bRet = _dbus_get_autolaunch_shm( address, shm_name );
3055 CloseHandle ( daemon );
3057 _dbus_global_unlock( lock );
3058 _dbus_string_free( &mutex_name );
3064 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3069 PROCESS_INFORMATION pi;
3070 dbus_bool_t retval = FALSE;
3072 char dbus_exe_path[MAX_PATH];
3073 char dbus_args[MAX_PATH * 2];
3074 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3075 DBusString shm_name;
3077 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3079 if (!_dbus_get_shm_name(&shm_name,scope))
3081 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3085 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3087 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3089 _dbus_verbose( "found running dbus daemon at %s\n",
3090 _dbus_string_get_const_data (&shm_name) );
3095 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3097 // Look in directory containing dbus shared library
3099 char dbus_module_path[MAX_PATH];
3102 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3103 "trying path where dbus shared library is located");
3105 hmod = _dbus_win_get_dll_hmodule();
3106 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3109 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3115 char *ext_idx = strrchr(dbus_module_path, '\\');
3118 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3120 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3122 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3123 printf ("or start the daemon manually\n\n");
3126 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3132 ZeroMemory( &si, sizeof(si) );
3134 ZeroMemory( &pi, sizeof(pi) );
3136 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3138 // argv[i] = "--config-file=bus\\session.conf";
3139 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3140 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3142 CloseHandle (pi.hThread);
3143 CloseHandle (pi.hProcess);
3144 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3145 if (retval == FALSE)
3146 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3150 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3156 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3158 _DBUS_ASSERT_ERROR_IS_SET (error);
3160 _dbus_global_unlock (mutex);
3166 /** Makes the file readable by every user in the system.
3168 * @param filename the filename
3169 * @param error error location
3170 * @returns #TRUE if the file's permissions could be changed.
3173 _dbus_make_file_world_readable(const DBusString *filename,
3181 * return the relocated DATADIR
3183 * @returns relocated DATADIR static string
3187 _dbus_windows_get_datadir (void)
3189 return _dbus_replace_install_prefix(DBUS_DATADIR);
3193 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3196 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3197 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3200 * Returns the standard directories for a session bus to look for service
3203 * On Windows this should be data directories:
3205 * %CommonProgramFiles%/dbus
3209 * relocated DBUS_DATADIR
3211 * @param dirs the directory list we are returning
3212 * @returns #FALSE on OOM
3216 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3218 const char *common_progs;
3219 DBusString servicedir_path;
3221 if (!_dbus_string_init (&servicedir_path))
3226 /* On Windows CE, we adjust datadir dynamically to installation location. */
3227 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3229 if (data_dir != NULL)
3231 if (!_dbus_string_append (&servicedir_path, data_dir))
3234 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3240 the code for accessing services requires absolute base pathes
3241 in case DBUS_DATADIR is relative make it absolute
3247 _dbus_string_init_const (&p, DBUS_DATADIR);
3249 if (!_dbus_path_is_absolute (&p))
3251 char install_root[1000];
3252 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3253 if (!_dbus_string_append (&servicedir_path, install_root))
3258 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3261 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3265 common_progs = _dbus_getenv ("CommonProgramFiles");
3267 if (common_progs != NULL)
3269 if (!_dbus_string_append (&servicedir_path, common_progs))
3272 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3276 if (!_dbus_split_paths_and_append (&servicedir_path,
3277 DBUS_STANDARD_SESSION_SERVICEDIR,
3281 _dbus_string_free (&servicedir_path);
3285 _dbus_string_free (&servicedir_path);
3290 * Returns the standard directories for a system bus to look for service
3293 * On UNIX this should be the standard xdg freedesktop.org data directories:
3295 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3301 * On Windows there is no system bus and this function can return nothing.
3303 * @param dirs the directory list we are returning
3304 * @returns #FALSE on OOM
3308 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3315 * Atomically increments an integer
3317 * @param atomic pointer to the integer to increment
3318 * @returns the value before incrementing
3322 _dbus_atomic_inc (DBusAtomic *atomic)
3324 // +/- 1 is needed here!
3325 // no volatile argument with mingw
3326 return InterlockedIncrement (&atomic->value) - 1;
3330 * Atomically decrement an integer
3332 * @param atomic pointer to the integer to decrement
3333 * @returns the value before decrementing
3337 _dbus_atomic_dec (DBusAtomic *atomic)
3339 // +/- 1 is needed here!
3340 // no volatile argument with mingw
3341 return InterlockedDecrement (&atomic->value) + 1;
3345 * Atomically get the value of an integer. It may change at any time
3346 * thereafter, so this is mostly only useful for assertions.
3348 * @param atomic pointer to the integer to get
3349 * @returns the value at this moment
3352 _dbus_atomic_get (DBusAtomic *atomic)
3354 /* In this situation, GLib issues a MemoryBarrier() and then returns
3355 * atomic->value. However, mingw from mingw.org (not to be confused with
3356 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3357 * headers, so we have to get a memory barrier some other way.
3359 * InterlockedIncrement is older, and is documented on MSDN to be a full
3360 * memory barrier, so let's use that.
3364 InterlockedExchange (&dummy, 1);
3366 return atomic->value;
3370 * Called when the bus daemon is signaled to reload its configuration; any
3371 * caches should be nuked. Of course any caches that need explicit reload
3372 * are probably broken, but c'est la vie.
3377 _dbus_flush_caches (void)
3382 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3383 * for Winsock so is abstracted)
3385 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3388 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3390 return errno == WSAEWOULDBLOCK;
3394 * return the absolute path of the dbus installation
3396 * @param s buffer for installation path
3397 * @param len length of buffer
3398 * @returns #FALSE on failure
3401 _dbus_get_install_root(char *prefix, int len)
3403 //To find the prefix, we cut the filename and also \bin\ if present
3407 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3408 if ( pathLength == 0 || GetLastError() != 0 ) {
3412 lastSlash = _mbsrchr(prefix, '\\');
3413 if (lastSlash == NULL) {
3417 //cut off binary name
3420 //cut possible "\\bin"
3422 //this fails if we are in a double-byte system codepage and the
3423 //folder's name happens to end with the *bytes*
3424 //"\\bin"... (I.e. the second byte of some Han character and then
3425 //the Latin "bin", but that is not likely I think...
3426 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3428 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3430 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3437 find config file either from installation or build root according to
3438 the following path layout
3440 bin/dbus-daemon[d].exe
3441 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3442 (the former above is what dbus4win uses, the latter above is
3443 what a "normal" Unix-style "make install" uses)
3446 bin/dbus-daemon[d].exe
3447 bus/<config-file>.conf
3450 _dbus_get_config_file_name(DBusString *config_file, char *s)
3452 char path[MAX_PATH*2];
3453 int path_size = sizeof(path);
3455 if (!_dbus_get_install_root(path,path_size))
3458 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3460 strcat(path,"etc\\");
3462 if (_dbus_file_exists(path))
3464 // find path from executable
3465 if (!_dbus_string_append (config_file, path))
3470 if (!_dbus_get_install_root(path,path_size))
3472 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3474 strcat(path,"etc\\dbus-1\\");
3477 if (_dbus_file_exists(path))
3479 if (!_dbus_string_append (config_file, path))
3484 if (!_dbus_get_install_root(path,path_size))
3486 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3488 strcat(path,"bus\\");
3491 if (_dbus_file_exists(path))
3493 if (!_dbus_string_append (config_file, path))
3502 * Append the absolute path of the system.conf file
3503 * (there is no system bus on Windows so this can just
3504 * return FALSE and print a warning or something)
3506 * @param str the string to append to
3507 * @returns #FALSE if no memory
3510 _dbus_append_system_config_file (DBusString *str)
3512 return _dbus_get_config_file_name(str, "system.conf");
3516 * Append the absolute path of the session.conf file.
3518 * @param str the string to append to
3519 * @returns #FALSE if no memory
3522 _dbus_append_session_config_file (DBusString *str)
3524 return _dbus_get_config_file_name(str, "session.conf");
3527 /* See comment in dbus-sysdeps-unix.c */
3529 _dbus_lookup_session_address (dbus_bool_t *supported,
3530 DBusString *address,
3533 /* Probably fill this in with something based on COM? */
3539 * Appends the directory in which a keyring for the given credentials
3540 * should be stored. The credentials should have either a Windows or
3541 * UNIX user in them. The directory should be an absolute path.
3543 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3544 * be something else, since the dotfile convention is not normal on Windows.
3546 * @param directory string to append directory to
3547 * @param credentials credentials the directory should be for
3549 * @returns #FALSE on no memory
3552 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3553 DBusCredentials *credentials)
3557 const char *homepath;
3558 const char *homedrive;
3560 _dbus_assert (credentials != NULL);
3561 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3563 if (!_dbus_string_init (&homedir))
3566 homedrive = _dbus_getenv("HOMEDRIVE");
3567 if (homedrive != NULL && *homedrive != '\0')
3569 _dbus_string_append(&homedir,homedrive);
3572 homepath = _dbus_getenv("HOMEPATH");
3573 if (homepath != NULL && *homepath != '\0')
3575 _dbus_string_append(&homedir,homepath);
3578 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3580 const char *override;
3582 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3583 if (override != NULL && *override != '\0')
3585 _dbus_string_set_length (&homedir, 0);
3586 if (!_dbus_string_append (&homedir, override))
3589 _dbus_verbose ("Using fake homedir for testing: %s\n",
3590 _dbus_string_get_const_data (&homedir));
3594 static dbus_bool_t already_warned = FALSE;
3595 if (!already_warned)
3597 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3598 already_warned = TRUE;
3605 /* It's not possible to create a .something directory in Windows CE
3606 using the file explorer. */
3607 #define KEYRING_DIR "dbus-keyrings"
3609 #define KEYRING_DIR ".dbus-keyrings"
3612 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3613 if (!_dbus_concat_dir_and_file (&homedir,
3617 if (!_dbus_string_copy (&homedir, 0,
3618 directory, _dbus_string_get_length (directory))) {
3622 _dbus_string_free (&homedir);
3626 _dbus_string_free (&homedir);
3630 /** Checks if a file exists
3632 * @param file full path to the file
3633 * @returns #TRUE if file exists
3636 _dbus_file_exists (const char *file)
3638 DWORD attributes = GetFileAttributesA (file);
3640 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3647 * A wrapper around strerror() because some platforms
3648 * may be lame and not have strerror().
3650 * @param error_number errno.
3651 * @returns error description.
3654 _dbus_strerror (int error_number)
3662 switch (error_number)
3665 return "Interrupted function call";
3667 return "Permission denied";
3669 return "Bad address";
3671 return "Invalid argument";
3673 return "Too many open files";
3674 case WSAEWOULDBLOCK:
3675 return "Resource temporarily unavailable";
3676 case WSAEINPROGRESS:
3677 return "Operation now in progress";
3679 return "Operation already in progress";
3681 return "Socket operation on nonsocket";
3682 case WSAEDESTADDRREQ:
3683 return "Destination address required";
3685 return "Message too long";
3687 return "Protocol wrong type for socket";
3688 case WSAENOPROTOOPT:
3689 return "Bad protocol option";
3690 case WSAEPROTONOSUPPORT:
3691 return "Protocol not supported";
3692 case WSAESOCKTNOSUPPORT:
3693 return "Socket type not supported";
3695 return "Operation not supported";
3696 case WSAEPFNOSUPPORT:
3697 return "Protocol family not supported";
3698 case WSAEAFNOSUPPORT:
3699 return "Address family not supported by protocol family";
3701 return "Address already in use";
3702 case WSAEADDRNOTAVAIL:
3703 return "Cannot assign requested address";
3705 return "Network is down";
3706 case WSAENETUNREACH:
3707 return "Network is unreachable";
3709 return "Network dropped connection on reset";
3710 case WSAECONNABORTED:
3711 return "Software caused connection abort";
3713 return "Connection reset by peer";
3715 return "No buffer space available";
3717 return "Socket is already connected";
3719 return "Socket is not connected";
3721 return "Cannot send after socket shutdown";
3723 return "Connection timed out";
3724 case WSAECONNREFUSED:
3725 return "Connection refused";
3727 return "Host is down";
3728 case WSAEHOSTUNREACH:
3729 return "No route to host";
3731 return "Too many processes";
3733 return "Graceful shutdown in progress";
3734 case WSATYPE_NOT_FOUND:
3735 return "Class type not found";
3736 case WSAHOST_NOT_FOUND:
3737 return "Host not found";
3739 return "Nonauthoritative host not found";
3740 case WSANO_RECOVERY:
3741 return "This is a nonrecoverable error";
3743 return "Valid name, no data record of requested type";
3744 case WSA_INVALID_HANDLE:
3745 return "Specified event object handle is invalid";
3746 case WSA_INVALID_PARAMETER:
3747 return "One or more parameters are invalid";
3748 case WSA_IO_INCOMPLETE:
3749 return "Overlapped I/O event object not in signaled state";
3750 case WSA_IO_PENDING:
3751 return "Overlapped operations will complete later";
3752 case WSA_NOT_ENOUGH_MEMORY:
3753 return "Insufficient memory available";
3754 case WSA_OPERATION_ABORTED:
3755 return "Overlapped operation aborted";
3756 #ifdef WSAINVALIDPROCTABLE
3758 case WSAINVALIDPROCTABLE:
3759 return "Invalid procedure table from service provider";
3761 #ifdef WSAINVALIDPROVIDER
3763 case WSAINVALIDPROVIDER:
3764 return "Invalid service provider version number";
3766 #ifdef WSAPROVIDERFAILEDINIT
3768 case WSAPROVIDERFAILEDINIT:
3769 return "Unable to initialize a service provider";
3772 case WSASYSCALLFAILURE:
3773 return "System call failure";
3775 msg = strerror (error_number);
3784 * Assigns an error name and message corresponding to a Win32 error
3785 * code to a DBusError. Does nothing if error is #NULL.
3787 * @param error the error.
3788 * @param code the Win32 error code
3791 _dbus_win_set_error_from_win_error (DBusError *error,
3796 /* As we want the English message, use the A API */
3797 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3798 FORMAT_MESSAGE_IGNORE_INSERTS |
3799 FORMAT_MESSAGE_FROM_SYSTEM,
3800 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3801 (LPSTR) &msg, 0, NULL);
3806 msg_copy = dbus_malloc (strlen (msg));
3807 strcpy (msg_copy, msg);
3810 dbus_set_error (error, "win32.error", "%s", msg_copy);
3813 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3817 _dbus_win_warn_win_error (const char *message,
3822 dbus_error_init (&error);
3823 _dbus_win_set_error_from_win_error (&error, code);
3824 _dbus_warn ("%s: %s\n", message, error.message);
3825 dbus_error_free (&error);
3829 * Removes a directory; Directory must be empty
3831 * @param filename directory filename
3832 * @param error initialized error object
3833 * @returns #TRUE on success
3836 _dbus_delete_directory (const DBusString *filename,
3839 const char *filename_c;
3841 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3843 filename_c = _dbus_string_get_const_data (filename);
3845 if (RemoveDirectoryA (filename_c) == 0)
3847 char *emsg = _dbus_win_error_string (GetLastError ());
3848 dbus_set_error (error, _dbus_win_error_from_last_error (),
3849 "Failed to remove directory %s: %s",
3851 _dbus_win_free_error_string (emsg);
3859 * Checks whether the filename is an absolute path
3861 * @param filename the filename
3862 * @returns #TRUE if an absolute path
3865 _dbus_path_is_absolute (const DBusString *filename)
3867 if (_dbus_string_get_length (filename) > 0)
3868 return _dbus_string_get_byte (filename, 1) == ':'
3869 || _dbus_string_get_byte (filename, 0) == '\\'
3870 || _dbus_string_get_byte (filename, 0) == '/';
3876 _dbus_check_setuid (void)
3881 /** @} end of sysdeps-win */
3882 /* tests in dbus-sysdeps-util.c */