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 * @brief return peer process id from tcp handle for localhost connections
139 * @param handle tcp socket descriptor
140 * @return process id or 0 in case the process id could not be fetched
143 _dbus_get_peer_pid_from_tcp_handle (int handle)
145 struct sockaddr_storage addr;
146 socklen_t len = sizeof (addr);
151 MIB_TCPTABLE_OWNER_PID *tcp_table;
153 dbus_bool_t is_localhost = FALSE;
155 getpeername (handle, (struct sockaddr *) &addr, &len);
157 if (addr.ss_family == AF_INET)
159 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
160 peer_port = ntohs (s->sin_port);
161 is_localhost = (htonl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
163 else if (addr.ss_family == AF_INET6)
165 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
168 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
169 peer_port = ntohs (s->sin6_port);
170 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
171 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
176 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
182 _dbus_verbose ("could not fetch process id from remote process\n");
189 ("Error not been able to fetch tcp peer port from connection\n");
193 if (is_winxp_sp3_or_lower ())
195 DWORD errorCode, dwSize;
196 PMIB_TCPTABLE_EX lpBuffer = NULL;
198 if (!load_ex_ip_helper_procedures ())
201 ("Error not been able to load iphelper procedures\n");
204 errorCode = (*lpfnAllocateAndGetTcpExTableFromStack) (&lpBuffer, TRUE, GetProcessHeap(), 0, 2);
205 if (errorCode != NO_ERROR)
208 ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
213 for (dwSize = 0; dwSize < lpBuffer->dwNumEntries; dwSize++)
215 int local_port = ntohs (lpBuffer->table[dwSize].dwLocalPort);
216 int local_address = ntohl (lpBuffer->table[dwSize].dwLocalAddr);
217 if (local_address == INADDR_LOOPBACK && local_port == peer_port)
219 result = lpBuffer->table[dwSize].dwOwningPid;
225 HeapFree (GetProcessHeap(), 0, lpBuffer);
227 _dbus_verbose ("got pid %d\n", (int)result);
232 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
234 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
235 if (tcp_table == NULL)
237 _dbus_verbose ("Error allocating memory\n");
242 if ((result = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
244 _dbus_verbose ("Error fetching tcp table %d\n", result);
245 dbus_free (tcp_table);
250 for (i = 0; i < tcp_table->dwNumEntries; i++)
252 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
253 int local_address = ntohl (p->dwLocalAddr);
254 int local_port = ntohs (p->dwLocalPort);
255 if (p->dwState == MIB_TCP_STATE_ESTAB
256 && local_address == INADDR_LOOPBACK && local_port == peer_port)
257 result = p->dwOwningPid;
260 _dbus_verbose ("got pid %d\n", result);
261 dbus_free (tcp_table);
265 /* Convert GetLastError() to a dbus error. */
267 _dbus_win_error_from_last_error (void)
269 switch (GetLastError())
272 return DBUS_ERROR_FAILED;
274 case ERROR_NO_MORE_FILES:
275 case ERROR_TOO_MANY_OPEN_FILES:
276 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
278 case ERROR_ACCESS_DENIED:
279 case ERROR_CANNOT_MAKE:
280 return DBUS_ERROR_ACCESS_DENIED;
282 case ERROR_NOT_ENOUGH_MEMORY:
283 return DBUS_ERROR_NO_MEMORY;
285 case ERROR_FILE_EXISTS:
286 return DBUS_ERROR_FILE_EXISTS;
288 case ERROR_FILE_NOT_FOUND:
289 case ERROR_PATH_NOT_FOUND:
290 return DBUS_ERROR_FILE_NOT_FOUND;
293 return DBUS_ERROR_FAILED;
298 _dbus_win_error_string (int error_number)
302 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
303 FORMAT_MESSAGE_IGNORE_INSERTS |
304 FORMAT_MESSAGE_FROM_SYSTEM,
305 NULL, error_number, 0,
306 (LPSTR) &msg, 0, NULL);
308 if (msg[strlen (msg) - 1] == '\n')
309 msg[strlen (msg) - 1] = '\0';
310 if (msg[strlen (msg) - 1] == '\r')
311 msg[strlen (msg) - 1] = '\0';
317 _dbus_win_free_error_string (char *string)
328 * Thin wrapper around the read() system call that appends
329 * the data it reads to the DBusString buffer. It appends
330 * up to the given count, and returns the same value
331 * and same errno as read(). The only exception is that
332 * _dbus_read_socket() handles EINTR for you.
333 * _dbus_read_socket() can return ENOMEM, even though
334 * regular UNIX read doesn't.
336 * @param fd the file descriptor to read from
337 * @param buffer the buffer to append data to
338 * @param count the amount of data to read
339 * @returns the number of bytes read or -1
343 _dbus_read_socket (int fd,
351 _dbus_assert (count >= 0);
353 start = _dbus_string_get_length (buffer);
355 if (!_dbus_string_lengthen (buffer, count))
357 _dbus_win_set_errno (ENOMEM);
361 data = _dbus_string_get_data_len (buffer, start, count);
365 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
366 bytes_read = recv (fd, data, count, 0);
368 if (bytes_read == SOCKET_ERROR)
370 DBUS_SOCKET_SET_ERRNO();
371 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
375 _dbus_verbose ("recv: = %d\n", bytes_read);
383 /* put length back (note that this doesn't actually realloc anything) */
384 _dbus_string_set_length (buffer, start);
390 /* put length back (doesn't actually realloc) */
391 _dbus_string_set_length (buffer, start + bytes_read);
395 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
403 * Thin wrapper around the write() system call that writes a part of a
404 * DBusString and handles EINTR for you.
406 * @param fd the file descriptor to write
407 * @param buffer the buffer to write data from
408 * @param start the first byte in the buffer to write
409 * @param len the number of bytes to try to write
410 * @returns the number of bytes written or -1 on error
413 _dbus_write_socket (int fd,
414 const DBusString *buffer,
421 data = _dbus_string_get_const_data_len (buffer, start, len);
425 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
426 bytes_written = send (fd, data, len, 0);
428 if (bytes_written == SOCKET_ERROR)
430 DBUS_SOCKET_SET_ERRNO();
431 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
435 _dbus_verbose ("send: = %d\n", bytes_written);
437 if (bytes_written < 0 && errno == EINTR)
441 if (bytes_written > 0)
442 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
445 return bytes_written;
450 * Closes a file descriptor.
452 * @param fd the file descriptor
453 * @param error error object
454 * @returns #FALSE if error set
457 _dbus_close_socket (int fd,
460 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
463 if (closesocket (fd) == SOCKET_ERROR)
465 DBUS_SOCKET_SET_ERRNO ();
470 dbus_set_error (error, _dbus_error_from_errno (errno),
471 "Could not close socket: socket=%d, , %s",
472 fd, _dbus_strerror_from_errno ());
475 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
481 * Sets the file descriptor to be close
482 * on exec. Should be called for all file
483 * descriptors in D-Bus code.
485 * @param fd the file descriptor
488 _dbus_fd_set_close_on_exec (intptr_t handle)
490 if ( !SetHandleInformation( (HANDLE) handle,
491 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
492 0 /*disable both flags*/ ) )
494 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
499 * Sets a file descriptor to be nonblocking.
501 * @param fd the file descriptor.
502 * @param error address of error location.
503 * @returns #TRUE on success.
506 _dbus_set_fd_nonblocking (int handle,
511 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
513 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
515 DBUS_SOCKET_SET_ERRNO ();
516 dbus_set_error (error, _dbus_error_from_errno (errno),
517 "Failed to set socket %d:%d to nonblocking: %s", handle,
518 _dbus_strerror_from_errno ());
527 * Like _dbus_write() but will use writev() if possible
528 * to write both buffers in sequence. The return value
529 * is the number of bytes written in the first buffer,
530 * plus the number written in the second. If the first
531 * buffer is written successfully and an error occurs
532 * writing the second, the number of bytes in the first
533 * is returned (i.e. the error is ignored), on systems that
534 * don't have writev. Handles EINTR for you.
535 * The second buffer may be #NULL.
537 * @param fd the file descriptor
538 * @param buffer1 first buffer
539 * @param start1 first byte to write in first buffer
540 * @param len1 number of bytes to write from first buffer
541 * @param buffer2 second buffer, or #NULL
542 * @param start2 first byte to write in second buffer
543 * @param len2 number of bytes to write in second buffer
544 * @returns total bytes written from both buffers, or -1 on error
547 _dbus_write_socket_two (int fd,
548 const DBusString *buffer1,
551 const DBusString *buffer2,
561 _dbus_assert (buffer1 != NULL);
562 _dbus_assert (start1 >= 0);
563 _dbus_assert (start2 >= 0);
564 _dbus_assert (len1 >= 0);
565 _dbus_assert (len2 >= 0);
568 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
571 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
579 vectors[0].buf = (char*) data1;
580 vectors[0].len = len1;
581 vectors[1].buf = (char*) data2;
582 vectors[1].len = len2;
586 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
595 if (rc == SOCKET_ERROR)
597 DBUS_SOCKET_SET_ERRNO ();
598 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
602 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
604 if (bytes_written < 0 && errno == EINTR)
607 return bytes_written;
611 _dbus_socket_is_invalid (int fd)
613 return fd == INVALID_SOCKET ? TRUE : FALSE;
619 * Opens the client side of a Windows named pipe. The connection D-BUS
620 * file descriptor index is returned. It is set up as nonblocking.
622 * @param path the path to named pipe socket
623 * @param error return location for error code
624 * @returns connection D-BUS file descriptor or -1 on error
627 _dbus_connect_named_pipe (const char *path,
630 _dbus_assert_not_reached ("not implemented");
638 _dbus_win_startup_winsock (void)
640 /* Straight from MSDN, deuglified */
642 static dbus_bool_t beenhere = FALSE;
644 WORD wVersionRequested;
651 wVersionRequested = MAKEWORD (2, 0);
653 err = WSAStartup (wVersionRequested, &wsaData);
656 _dbus_assert_not_reached ("Could not initialize WinSock");
660 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
661 * supports versions greater than 2.0 in addition to 2.0, it will
662 * still return 2.0 in wVersion since that is the version we
665 if (LOBYTE (wsaData.wVersion) != 2 ||
666 HIBYTE (wsaData.wVersion) != 0)
668 _dbus_assert_not_reached ("No usable WinSock found");
683 /************************************************************************
687 ************************************************************************/
690 * Measure the message length without terminating nul
692 int _dbus_printf_string_upper_bound (const char *format,
695 /* MSVCRT's vsnprintf semantics are a bit different */
701 bufsize = sizeof (buf);
702 DBUS_VA_COPY (args_copy, args);
703 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
706 while (len == -1) /* try again */
712 p = malloc (bufsize);
717 DBUS_VA_COPY (args_copy, args);
718 len = _vsnprintf (p, bufsize - 1, format, args_copy);
728 * Returns the UTF-16 form of a UTF-8 string. The result should be
729 * freed with dbus_free() when no longer needed.
731 * @param str the UTF-8 string
732 * @param error return location for error code
735 _dbus_win_utf8_to_utf16 (const char *str,
742 _dbus_string_init_const (&s, str);
744 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
746 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
750 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
754 _dbus_win_set_error_from_win_error (error, GetLastError ());
758 retval = dbus_new (wchar_t, n);
762 _DBUS_SET_OOM (error);
766 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
769 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
777 * Returns the UTF-8 form of a UTF-16 string. The result should be
778 * freed with dbus_free() when no longer needed.
780 * @param str the UTF-16 string
781 * @param error return location for error code
784 _dbus_win_utf16_to_utf8 (const wchar_t *str,
790 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
794 _dbus_win_set_error_from_win_error (error, GetLastError ());
798 retval = dbus_malloc (n);
802 _DBUS_SET_OOM (error);
806 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
809 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
821 /************************************************************************
824 ************************************************************************/
827 _dbus_win_account_to_sid (const wchar_t *waccount,
831 dbus_bool_t retval = FALSE;
832 DWORD sid_length, wdomain_length;
840 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
841 NULL, &wdomain_length, &use) &&
842 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
844 _dbus_win_set_error_from_win_error (error, GetLastError ());
848 *ppsid = dbus_malloc (sid_length);
851 _DBUS_SET_OOM (error);
855 wdomain = dbus_new (wchar_t, wdomain_length);
858 _DBUS_SET_OOM (error);
862 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
863 wdomain, &wdomain_length, &use))
865 _dbus_win_set_error_from_win_error (error, GetLastError ());
869 if (!IsValidSid ((PSID) *ppsid))
871 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
889 /** @} end of sysdeps-win */
893 * The only reason this is separate from _dbus_getpid() is to allow it
894 * on Windows for logging but not for other purposes.
896 * @returns process ID to put in log messages
899 _dbus_pid_for_log (void)
901 return _dbus_getpid ();
906 static BOOL is_winxp_sp3_or_lower()
908 OSVERSIONINFOEX osvi;
909 DWORDLONG dwlConditionMask = 0;
910 int op=VER_LESS_EQUAL;
912 // Initialize the OSVERSIONINFOEX structure.
914 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
915 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
916 osvi.dwMajorVersion = 5;
917 osvi.dwMinorVersion = 1;
918 osvi.wServicePackMajor = 3;
919 osvi.wServicePackMinor = 0;
921 // Initialize the condition mask.
923 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
924 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
925 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
926 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
930 return VerifyVersionInfo(
932 VER_MAJORVERSION | VER_MINORVERSION |
933 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
938 * @param sid points to sid buffer, need to be freed with LocalFree()
939 * @param process_id the process id for which the sid should be returned
940 * @returns process sid
943 _dbus_getsid(char **sid, dbus_pid_t process_id)
945 HANDLE process_token = INVALID_HANDLE_VALUE;
946 TOKEN_USER *token_user = NULL;
951 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
953 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
955 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
958 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
959 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
960 || (token_user = alloca (n)) == NULL
961 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
963 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
966 psid = token_user->User.Sid;
967 if (!IsValidSid (psid))
969 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
972 if (!ConvertSidToStringSidA (psid, sid))
974 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
981 CloseHandle (process_handle);
982 if (process_token != INVALID_HANDLE_VALUE)
983 CloseHandle (process_token);
985 _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
990 /************************************************************************
994 ************************************************************************/
997 * Creates a full-duplex pipe (as in socketpair()).
998 * Sets both ends of the pipe nonblocking.
1000 * @param fd1 return location for one end
1001 * @param fd2 return location for the other end
1002 * @param blocking #TRUE if pipe should be blocking
1003 * @param error error return
1004 * @returns #FALSE on failure (if error is set)
1007 _dbus_full_duplex_pipe (int *fd1,
1009 dbus_bool_t blocking,
1012 SOCKET temp, socket1 = -1, socket2 = -1;
1013 struct sockaddr_in saddr;
1017 _dbus_win_startup_winsock ();
1019 temp = socket (AF_INET, SOCK_STREAM, 0);
1020 if (temp == INVALID_SOCKET)
1022 DBUS_SOCKET_SET_ERRNO ();
1027 saddr.sin_family = AF_INET;
1029 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1031 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1033 DBUS_SOCKET_SET_ERRNO ();
1037 if (listen (temp, 1) == SOCKET_ERROR)
1039 DBUS_SOCKET_SET_ERRNO ();
1043 len = sizeof (saddr);
1044 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1046 DBUS_SOCKET_SET_ERRNO ();
1050 socket1 = socket (AF_INET, SOCK_STREAM, 0);
1051 if (socket1 == INVALID_SOCKET)
1053 DBUS_SOCKET_SET_ERRNO ();
1057 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1059 DBUS_SOCKET_SET_ERRNO ();
1063 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1064 if (socket2 == INVALID_SOCKET)
1066 DBUS_SOCKET_SET_ERRNO ();
1073 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1075 DBUS_SOCKET_SET_ERRNO ();
1080 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1082 DBUS_SOCKET_SET_ERRNO ();
1090 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1091 *fd1, socket1, *fd2, socket2);
1098 closesocket (socket2);
1100 closesocket (socket1);
1104 dbus_set_error (error, _dbus_error_from_errno (errno),
1105 "Could not setup socket pair: %s",
1106 _dbus_strerror_from_errno ());
1112 * Wrapper for poll().
1114 * @param fds the file descriptors to poll
1115 * @param n_fds number of descriptors in the array
1116 * @param timeout_milliseconds timeout or -1 for infinite
1117 * @returns numbers of fds with revents, or <0 on error
1120 _dbus_poll (DBusPollFD *fds,
1122 int timeout_milliseconds)
1124 #define USE_CHRIS_IMPL 0
1128 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1129 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1137 #define DBUS_STACK_WSAEVENTS 256
1138 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1139 WSAEVENT *pEvents = NULL;
1140 if (n_fds > DBUS_STACK_WSAEVENTS)
1141 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1143 pEvents = eventsOnStack;
1146 #ifdef DBUS_ENABLE_VERBOSE_MODE
1148 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1149 for (i = 0; i < n_fds; i++)
1151 DBusPollFD *fdp = &fds[i];
1154 if (fdp->events & _DBUS_POLLIN)
1155 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1157 if (fdp->events & _DBUS_POLLOUT)
1158 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1160 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1162 // FIXME: more robust code for long msg
1163 // create on heap when msg[] becomes too small
1164 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1166 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1170 msgp += sprintf (msgp, "\n");
1171 _dbus_verbose ("%s",msg);
1173 for (i = 0; i < n_fds; i++)
1175 DBusPollFD *fdp = &fds[i];
1177 long lNetworkEvents = FD_OOB;
1179 ev = WSACreateEvent();
1181 if (fdp->events & _DBUS_POLLIN)
1182 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1184 if (fdp->events & _DBUS_POLLOUT)
1185 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1187 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1193 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1195 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1197 DBUS_SOCKET_SET_ERRNO ();
1198 if (errno != WSAEWOULDBLOCK)
1199 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1202 else if (ready == WSA_WAIT_TIMEOUT)
1204 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1207 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1210 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1212 for (i = 0; i < n_fds; i++)
1214 DBusPollFD *fdp = &fds[i];
1215 WSANETWORKEVENTS ne;
1219 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1221 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1222 fdp->revents |= _DBUS_POLLIN;
1224 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1225 fdp->revents |= _DBUS_POLLOUT;
1227 if (ne.lNetworkEvents & (FD_OOB))
1228 fdp->revents |= _DBUS_POLLERR;
1230 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1231 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1233 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1234 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1236 if (ne.lNetworkEvents & (FD_OOB))
1237 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1239 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1241 if(ne.lNetworkEvents)
1244 WSAEventSelect(fdp->fd, pEvents[i], 0);
1247 msgp += sprintf (msgp, "\n");
1248 _dbus_verbose ("%s",msg);
1252 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1256 for(i = 0; i < n_fds; i++)
1258 WSACloseEvent(pEvents[i]);
1261 if (n_fds > DBUS_STACK_WSAEVENTS)
1266 #else /* USE_CHRIS_IMPL */
1268 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1269 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1272 fd_set read_set, write_set, err_set;
1278 FD_ZERO (&read_set);
1279 FD_ZERO (&write_set);
1283 #ifdef DBUS_ENABLE_VERBOSE_MODE
1285 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1286 for (i = 0; i < n_fds; i++)
1288 DBusPollFD *fdp = &fds[i];
1291 if (fdp->events & _DBUS_POLLIN)
1292 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1294 if (fdp->events & _DBUS_POLLOUT)
1295 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1297 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1299 // FIXME: more robust code for long msg
1300 // create on heap when msg[] becomes too small
1301 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1303 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1307 msgp += sprintf (msgp, "\n");
1308 _dbus_verbose ("%s",msg);
1310 for (i = 0; i < n_fds; i++)
1312 DBusPollFD *fdp = &fds[i];
1314 if (fdp->events & _DBUS_POLLIN)
1315 FD_SET (fdp->fd, &read_set);
1317 if (fdp->events & _DBUS_POLLOUT)
1318 FD_SET (fdp->fd, &write_set);
1320 FD_SET (fdp->fd, &err_set);
1322 max_fd = MAX (max_fd, fdp->fd);
1325 // Avoid random lockups with send(), for lack of a better solution so far
1326 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1327 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1329 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1331 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1333 DBUS_SOCKET_SET_ERRNO ();
1334 if (errno != WSAEWOULDBLOCK)
1335 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1337 else if (ready == 0)
1338 _dbus_verbose ("select: = 0\n");
1342 #ifdef DBUS_ENABLE_VERBOSE_MODE
1344 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1346 for (i = 0; i < n_fds; i++)
1348 DBusPollFD *fdp = &fds[i];
1350 if (FD_ISSET (fdp->fd, &read_set))
1351 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1353 if (FD_ISSET (fdp->fd, &write_set))
1354 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1356 if (FD_ISSET (fdp->fd, &err_set))
1357 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1359 msgp += sprintf (msgp, "\n");
1360 _dbus_verbose ("%s",msg);
1363 for (i = 0; i < n_fds; i++)
1365 DBusPollFD *fdp = &fds[i];
1369 if (FD_ISSET (fdp->fd, &read_set))
1370 fdp->revents |= _DBUS_POLLIN;
1372 if (FD_ISSET (fdp->fd, &write_set))
1373 fdp->revents |= _DBUS_POLLOUT;
1375 if (FD_ISSET (fdp->fd, &err_set))
1376 fdp->revents |= _DBUS_POLLERR;
1380 #endif /* USE_CHRIS_IMPL */
1386 /******************************************************************************
1388 Original CVS version of dbus-sysdeps.c
1390 ******************************************************************************/
1391 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1392 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1394 * Copyright (C) 2002, 2003 Red Hat, Inc.
1395 * Copyright (C) 2003 CodeFactory AB
1396 * Copyright (C) 2005 Novell, Inc.
1398 * Licensed under the Academic Free License version 2.1
1400 * This program is free software; you can redistribute it and/or modify
1401 * it under the terms of the GNU General Public License as published by
1402 * the Free Software Foundation; either version 2 of the License, or
1403 * (at your option) any later version.
1405 * This program is distributed in the hope that it will be useful,
1406 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1407 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1408 * GNU General Public License for more details.
1410 * You should have received a copy of the GNU General Public License
1411 * along with this program; if not, write to the Free Software
1412 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1418 * Exit the process, returning the given value.
1420 * @param code the exit code
1423 _dbus_exit (int code)
1429 * Creates a socket and connects to a socket at the given host
1430 * and port. The connection fd is returned, and is set up as
1433 * @param host the host name to connect to
1434 * @param port the port to connect to
1435 * @param family the address family to listen on, NULL for all
1436 * @param error return location for error code
1437 * @returns connection file descriptor or -1 on error
1440 _dbus_connect_tcp_socket (const char *host,
1445 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1449 _dbus_connect_tcp_socket_with_nonce (const char *host,
1452 const char *noncefile,
1456 struct addrinfo hints;
1457 struct addrinfo *ai, *tmp;
1459 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1461 _dbus_win_startup_winsock ();
1466 hints.ai_family = AF_UNSPEC;
1467 else if (!strcmp(family, "ipv4"))
1468 hints.ai_family = AF_INET;
1469 else if (!strcmp(family, "ipv6"))
1470 hints.ai_family = AF_INET6;
1473 dbus_set_error (error,
1474 DBUS_ERROR_INVALID_ARGS,
1475 "Unknown address family %s", family);
1478 hints.ai_protocol = IPPROTO_TCP;
1479 hints.ai_socktype = SOCK_STREAM;
1480 #ifdef AI_ADDRCONFIG
1481 hints.ai_flags = AI_ADDRCONFIG;
1486 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1488 dbus_set_error (error,
1489 _dbus_error_from_errno (res),
1490 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1491 host, port, _dbus_strerror(res), res);
1498 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1500 DBUS_SOCKET_SET_ERRNO ();
1501 dbus_set_error (error,
1502 _dbus_error_from_errno (errno),
1503 "Failed to open socket: %s",
1504 _dbus_strerror_from_errno ());
1508 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1510 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1512 DBUS_SOCKET_SET_ERRNO ();
1525 dbus_set_error (error,
1526 _dbus_error_from_errno (errno),
1527 "Failed to connect to socket \"%s:%s\" %s",
1528 host, port, _dbus_strerror_from_errno ());
1532 if (noncefile != NULL)
1534 DBusString noncefileStr;
1536 if (!_dbus_string_init (&noncefileStr) ||
1537 !_dbus_string_append(&noncefileStr, noncefile))
1540 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1544 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1546 _dbus_string_free (&noncefileStr);
1555 _dbus_fd_set_close_on_exec (fd);
1557 if (!_dbus_set_fd_nonblocking (fd, error))
1567 * Creates a socket and binds it to the given path, then listens on
1568 * the socket. The socket is set to be nonblocking. In case of port=0
1569 * a random free port is used and returned in the port parameter.
1570 * If inaddr_any is specified, the hostname is ignored.
1572 * @param host the host name to listen on
1573 * @param port the port to listen on, if zero a free port will be used
1574 * @param family the address family to listen on, NULL for all
1575 * @param retport string to return the actual port listened on
1576 * @param fds_p location to store returned file descriptors
1577 * @param error return location for errors
1578 * @returns the number of listening file descriptors or -1 on error
1582 _dbus_listen_tcp_socket (const char *host,
1585 DBusString *retport,
1589 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1590 struct addrinfo hints;
1591 struct addrinfo *ai, *tmp;
1593 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1594 //That's required for family == IPv6(which is the default on Vista if family is not given)
1595 //So we use our own union instead of sockaddr_gen:
1598 struct sockaddr Address;
1599 struct sockaddr_in AddressIn;
1600 struct sockaddr_in6 AddressIn6;
1604 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1606 _dbus_win_startup_winsock ();
1611 hints.ai_family = AF_UNSPEC;
1612 else if (!strcmp(family, "ipv4"))
1613 hints.ai_family = AF_INET;
1614 else if (!strcmp(family, "ipv6"))
1615 hints.ai_family = AF_INET6;
1618 dbus_set_error (error,
1619 DBUS_ERROR_INVALID_ARGS,
1620 "Unknown address family %s", family);
1624 hints.ai_protocol = IPPROTO_TCP;
1625 hints.ai_socktype = SOCK_STREAM;
1626 #ifdef AI_ADDRCONFIG
1627 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1629 hints.ai_flags = AI_PASSIVE;
1632 redo_lookup_with_port:
1633 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1635 dbus_set_error (error,
1636 _dbus_error_from_errno (res),
1637 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1638 host ? host : "*", port, _dbus_strerror(res), res);
1645 int fd = -1, *newlisten_fd;
1646 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1648 DBUS_SOCKET_SET_ERRNO ();
1649 dbus_set_error (error,
1650 _dbus_error_from_errno (errno),
1651 "Failed to open socket: %s",
1652 _dbus_strerror_from_errno ());
1655 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1657 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1659 DBUS_SOCKET_SET_ERRNO ();
1660 dbus_set_error (error, _dbus_error_from_errno (errno),
1661 "Failed to bind socket \"%s:%s\": %s",
1662 host ? host : "*", port, _dbus_strerror_from_errno ());
1667 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1669 DBUS_SOCKET_SET_ERRNO ();
1670 dbus_set_error (error, _dbus_error_from_errno (errno),
1671 "Failed to listen on socket \"%s:%s\": %s",
1672 host ? host : "*", port, _dbus_strerror_from_errno ());
1677 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1681 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1682 "Failed to allocate file handle array");
1685 listen_fd = newlisten_fd;
1686 listen_fd[nlisten_fd] = fd;
1689 if (!_dbus_string_get_length(retport))
1691 /* If the user didn't specify a port, or used 0, then
1692 the kernel chooses a port. After the first address
1693 is bound to, we need to force all remaining addresses
1694 to use the same port */
1695 if (!port || !strcmp(port, "0"))
1697 mysockaddr_gen addr;
1698 socklen_t addrlen = sizeof(addr);
1701 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1703 DBUS_SOCKET_SET_ERRNO ();
1704 dbus_set_error (error, _dbus_error_from_errno (errno),
1705 "Failed to resolve port \"%s:%s\": %s",
1706 host ? host : "*", port, _dbus_strerror_from_errno());
1709 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1710 if (!_dbus_string_append(retport, portbuf))
1712 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1716 /* Release current address list & redo lookup */
1717 port = _dbus_string_get_const_data(retport);
1719 goto redo_lookup_with_port;
1723 if (!_dbus_string_append(retport, port))
1725 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1738 _dbus_win_set_errno (WSAEADDRINUSE);
1739 dbus_set_error (error, _dbus_error_from_errno (errno),
1740 "Failed to bind socket \"%s:%s\": %s",
1741 host ? host : "*", port, _dbus_strerror_from_errno ());
1745 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1747 for (i = 0 ; i < nlisten_fd ; i++)
1749 _dbus_fd_set_close_on_exec (listen_fd[i]);
1750 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1763 for (i = 0 ; i < nlisten_fd ; i++)
1764 closesocket (listen_fd[i]);
1765 dbus_free(listen_fd);
1771 * Accepts a connection on a listening socket.
1772 * Handles EINTR for you.
1774 * @param listen_fd the listen file descriptor
1775 * @returns the connection fd of the client, or -1 on error
1778 _dbus_accept (int listen_fd)
1783 client_fd = accept (listen_fd, NULL, NULL);
1785 if (DBUS_SOCKET_IS_INVALID (client_fd))
1787 DBUS_SOCKET_SET_ERRNO ();
1792 _dbus_verbose ("client fd %d accepted\n", client_fd);
1801 _dbus_send_credentials_socket (int handle,
1804 /* FIXME: for the session bus credentials shouldn't matter (?), but
1805 * for the system bus they are presumably essential. A rough outline
1806 * of a way to implement the credential transfer would be this:
1808 * client waits to *read* a byte.
1810 * server creates a named pipe with a random name, sends a byte
1811 * contining its length, and its name.
1813 * client reads the name, connects to it (using Win32 API).
1815 * server waits for connection to the named pipe, then calls
1816 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1817 * calls RevertToSelf(), closes its handles to the named pipe, and
1818 * is done. (Maybe there is some other way to get the SID of a named
1819 * pipe client without having to use impersonation?)
1821 * client closes its handles and is done.
1823 * Ralf: Why not sending credentials over the given this connection ?
1824 * Using named pipes makes it impossible to be connected from a unix client.
1830 _dbus_string_init_const_len (&buf, "\0", 1);
1832 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1834 if (bytes_written < 0 && errno == EINTR)
1837 if (bytes_written < 0)
1839 dbus_set_error (error, _dbus_error_from_errno (errno),
1840 "Failed to write credentials byte: %s",
1841 _dbus_strerror_from_errno ());
1844 else if (bytes_written == 0)
1846 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1847 "wrote zero bytes writing credentials byte");
1852 _dbus_assert (bytes_written == 1);
1853 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1860 * Reads a single byte which must be nul (an error occurs otherwise),
1861 * and reads unix credentials if available. Fills in pid/uid/gid with
1862 * -1 if no credentials are available. Return value indicates whether
1863 * a byte was read, not whether we got valid credentials. On some
1864 * systems, such as Linux, reading/writing the byte isn't actually
1865 * required, but we do it anyway just to avoid multiple codepaths.
1867 * Fails if no byte is available, so you must select() first.
1869 * The point of the byte is that on some systems we have to
1870 * use sendmsg()/recvmsg() to transmit credentials.
1872 * @param client_fd the client file descriptor
1873 * @param credentials struct to fill with credentials of client
1874 * @param error location to store error code
1875 * @returns #TRUE on success
1878 _dbus_read_credentials_socket (int handle,
1879 DBusCredentials *credentials,
1889 // could fail due too OOM
1890 if (_dbus_string_init (&buf))
1892 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1895 _dbus_verbose ("got one zero byte from server\n");
1897 _dbus_string_free (&buf);
1900 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1904 _dbus_credentials_add_pid (credentials, pid);
1906 if (_dbus_getsid (&sid, pid))
1908 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1922 * Checks to make sure the given directory is
1923 * private to the user
1925 * @param dir the name of the directory
1926 * @param error error return
1927 * @returns #FALSE on failure
1930 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1933 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1939 * Appends the given filename to the given directory.
1941 * @todo it might be cute to collapse multiple '/' such as "foo//"
1944 * @param dir the directory name
1945 * @param next_component the filename
1946 * @returns #TRUE on success
1949 _dbus_concat_dir_and_file (DBusString *dir,
1950 const DBusString *next_component)
1952 dbus_bool_t dir_ends_in_slash;
1953 dbus_bool_t file_starts_with_slash;
1955 if (_dbus_string_get_length (dir) == 0 ||
1956 _dbus_string_get_length (next_component) == 0)
1960 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1961 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1963 file_starts_with_slash =
1964 ('/' == _dbus_string_get_byte (next_component, 0) ||
1965 '\\' == _dbus_string_get_byte (next_component, 0));
1967 if (dir_ends_in_slash && file_starts_with_slash)
1969 _dbus_string_shorten (dir, 1);
1971 else if (!(dir_ends_in_slash || file_starts_with_slash))
1973 if (!_dbus_string_append_byte (dir, '\\'))
1977 return _dbus_string_copy (next_component, 0, dir,
1978 _dbus_string_get_length (dir));
1981 /*---------------- DBusCredentials ----------------------------------*/
1984 * Adds the credentials corresponding to the given username.
1986 * @param credentials credentials to fill in
1987 * @param username the username
1988 * @returns #TRUE if the username existed and we got some credentials
1991 _dbus_credentials_add_from_user (DBusCredentials *credentials,
1992 const DBusString *username)
1994 return _dbus_credentials_add_windows_sid (credentials,
1995 _dbus_string_get_const_data(username));
1999 * Adds the credentials of the current process to the
2000 * passed-in credentials object.
2002 * @param credentials credentials to add to
2003 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
2007 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
2009 dbus_bool_t retval = FALSE;
2012 if (!_dbus_getsid(&sid, _dbus_getpid()))
2015 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2018 if (!_dbus_credentials_add_windows_sid (credentials,sid))
2033 * Append to the string the identity we would like to have when we
2034 * authenticate, on UNIX this is the current process UID and on
2035 * Windows something else, probably a Windows SID string. No escaping
2036 * is required, that is done in dbus-auth.c. The username here
2037 * need not be anything human-readable, it can be the machine-readable
2038 * form i.e. a user id.
2040 * @param str the string to append to
2041 * @returns #FALSE on no memory
2042 * @todo to which class belongs this
2045 _dbus_append_user_from_current_process (DBusString *str)
2047 dbus_bool_t retval = FALSE;
2050 if (!_dbus_getsid(&sid, _dbus_getpid()))
2053 retval = _dbus_string_append (str,sid);
2060 * Gets our process ID
2061 * @returns process ID
2066 return GetCurrentProcessId ();
2069 /** nanoseconds in a second */
2070 #define NANOSECONDS_PER_SECOND 1000000000
2071 /** microseconds in a second */
2072 #define MICROSECONDS_PER_SECOND 1000000
2073 /** milliseconds in a second */
2074 #define MILLISECONDS_PER_SECOND 1000
2075 /** nanoseconds in a millisecond */
2076 #define NANOSECONDS_PER_MILLISECOND 1000000
2077 /** microseconds in a millisecond */
2078 #define MICROSECONDS_PER_MILLISECOND 1000
2081 * Sleeps the given number of milliseconds.
2082 * @param milliseconds number of milliseconds
2085 _dbus_sleep_milliseconds (int milliseconds)
2087 Sleep (milliseconds);
2092 * Get current time, as in gettimeofday(). Never uses the monotonic
2095 * @param tv_sec return location for number of seconds
2096 * @param tv_usec return location for number of microseconds
2099 _dbus_get_real_time (long *tv_sec,
2103 dbus_uint64_t time64;
2105 GetSystemTimeAsFileTime (&ft);
2107 memcpy (&time64, &ft, sizeof (time64));
2109 /* Convert from 100s of nanoseconds since 1601-01-01
2110 * to Unix epoch. Yes, this is Y2038 unsafe.
2112 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2116 *tv_sec = time64 / 1000000;
2119 *tv_usec = time64 % 1000000;
2123 * Get current time, as in gettimeofday(). Use the monotonic clock if
2124 * available, to avoid problems when the system time changes.
2126 * @param tv_sec return location for number of seconds
2127 * @param tv_usec return location for number of microseconds
2130 _dbus_get_monotonic_time (long *tv_sec,
2133 /* no implementation yet, fall back to wall-clock time */
2134 _dbus_get_real_time (tv_sec, tv_usec);
2138 * signal (SIGPIPE, SIG_IGN);
2141 _dbus_disable_sigpipe (void)
2146 * Creates a directory; succeeds if the directory
2147 * is created or already existed.
2149 * @param filename directory filename
2150 * @param error initialized error object
2151 * @returns #TRUE on success
2154 _dbus_create_directory (const DBusString *filename,
2157 const char *filename_c;
2159 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2161 filename_c = _dbus_string_get_const_data (filename);
2163 if (!CreateDirectoryA (filename_c, NULL))
2165 if (GetLastError () == ERROR_ALREADY_EXISTS)
2168 dbus_set_error (error, DBUS_ERROR_FAILED,
2169 "Failed to create directory %s: %s\n",
2170 filename_c, _dbus_strerror_from_errno ());
2179 * Generates the given number of random bytes,
2180 * using the best mechanism we can come up with.
2182 * @param str the string
2183 * @param n_bytes the number of random bytes to append to string
2184 * @returns #TRUE on success, #FALSE if no memory
2187 _dbus_generate_random_bytes (DBusString *str,
2194 old_len = _dbus_string_get_length (str);
2196 if (!_dbus_string_lengthen (str, n_bytes))
2199 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2201 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2204 if (!CryptGenRandom (hprov, n_bytes, p))
2206 CryptReleaseContext (hprov, 0);
2210 CryptReleaseContext (hprov, 0);
2216 * Gets the temporary files directory by inspecting the environment variables
2217 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2219 * @returns location of temp directory
2222 _dbus_get_tmpdir(void)
2224 static const char* tmpdir = NULL;
2225 static char buf[1000];
2231 if (!GetTempPathA (sizeof (buf), buf))
2233 _dbus_warn ("GetTempPath failed\n");
2237 /* Drop terminating backslash or slash */
2238 last_slash = _mbsrchr (buf, '\\');
2239 if (last_slash > buf && last_slash[1] == '\0')
2240 last_slash[0] = '\0';
2241 last_slash = _mbsrchr (buf, '/');
2242 if (last_slash > buf && last_slash[1] == '\0')
2243 last_slash[0] = '\0';
2248 _dbus_assert(tmpdir != NULL);
2255 * Deletes the given file.
2257 * @param filename the filename
2258 * @param error error location
2260 * @returns #TRUE if unlink() succeeded
2263 _dbus_delete_file (const DBusString *filename,
2266 const char *filename_c;
2268 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2270 filename_c = _dbus_string_get_const_data (filename);
2272 if (DeleteFileA (filename_c) == 0)
2274 dbus_set_error (error, DBUS_ERROR_FAILED,
2275 "Failed to delete file %s: %s\n",
2276 filename_c, _dbus_strerror_from_errno ());
2284 * replaces the term DBUS_PREFIX in configure_time_path by the
2285 * current dbus installation directory. On unix this function is a noop
2287 * @param configure_time_path
2291 _dbus_replace_install_prefix (const char *configure_time_path)
2294 return configure_time_path;
2296 static char retval[1000];
2297 static char runtime_prefix[1000];
2301 if (!configure_time_path)
2304 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2305 strncmp (configure_time_path, DBUS_PREFIX "/",
2306 strlen (DBUS_PREFIX) + 1))) {
2307 strcat (retval, configure_time_path);
2311 strcpy (retval, runtime_prefix);
2312 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2314 /* Somehow, in some situations, backslashes get collapsed in the string.
2315 * Since windows C library accepts both forward and backslashes as
2316 * path separators, convert all backslashes to forward slashes.
2319 for(i = 0; retval[i] != '\0'; i++) {
2320 if(retval[i] == '\\')
2327 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2329 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2339 * Backtrace Generator
2341 * Copyright 2004 Eric Poech
2342 * Copyright 2004 Robert Shearman
2344 * This library is free software; you can redistribute it and/or
2345 * modify it under the terms of the GNU Lesser General Public
2346 * License as published by the Free Software Foundation; either
2347 * version 2.1 of the License, or (at your option) any later version.
2349 * This library is distributed in the hope that it will be useful,
2350 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2351 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2352 * Lesser General Public License for more details.
2354 * You should have received a copy of the GNU Lesser General Public
2355 * License along with this library; if not, write to the Free Software
2356 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2360 #include <imagehlp.h>
2363 #define DPRINTF _dbus_warn
2371 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2373 //MAKE_FUNCPTR(StackWalk);
2374 //MAKE_FUNCPTR(SymGetModuleBase);
2375 //MAKE_FUNCPTR(SymFunctionTableAccess);
2376 //MAKE_FUNCPTR(SymInitialize);
2377 //MAKE_FUNCPTR(SymGetSymFromAddr);
2378 //MAKE_FUNCPTR(SymGetModuleInfo);
2379 static BOOL (WINAPI *pStackWalk)(
2383 LPSTACKFRAME StackFrame,
2384 PVOID ContextRecord,
2385 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2386 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2387 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2388 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2391 static DWORD64 (WINAPI *pSymGetModuleBase)(
2395 static PVOID (WINAPI *pSymFunctionTableAccess)(
2400 static DWORD (WINAPI *pSymGetModuleBase)(
2404 static PVOID (WINAPI *pSymFunctionTableAccess)(
2409 static BOOL (WINAPI *pSymInitialize)(
2411 PSTR UserSearchPath,
2414 static BOOL (WINAPI *pSymGetSymFromAddr)(
2417 PDWORD Displacement,
2418 PIMAGEHLP_SYMBOL Symbol
2420 static BOOL (WINAPI *pSymGetModuleInfo)(
2423 PIMAGEHLP_MODULE ModuleInfo
2425 static DWORD (WINAPI *pSymSetOptions)(
2430 static BOOL init_backtrace()
2432 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2434 #define GETFUNC(x) \
2435 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2443 // GETFUNC(StackWalk);
2444 // GETFUNC(SymGetModuleBase);
2445 // GETFUNC(SymFunctionTableAccess);
2446 // GETFUNC(SymInitialize);
2447 // GETFUNC(SymGetSymFromAddr);
2448 // GETFUNC(SymGetModuleInfo);
2452 pStackWalk = (BOOL (WINAPI *)(
2456 LPSTACKFRAME StackFrame,
2457 PVOID ContextRecord,
2458 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2459 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2460 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2461 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2462 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2464 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2467 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2468 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2471 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2473 pSymGetModuleBase=(DWORD (WINAPI *)(
2476 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2477 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2480 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2482 pSymInitialize = (BOOL (WINAPI *)(
2484 PSTR UserSearchPath,
2486 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2487 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2490 PDWORD Displacement,
2491 PIMAGEHLP_SYMBOL Symbol
2492 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2493 pSymGetModuleInfo = (BOOL (WINAPI *)(
2496 PIMAGEHLP_MODULE ModuleInfo
2497 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2498 pSymSetOptions = (DWORD (WINAPI *)(
2500 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2503 pSymSetOptions(SYMOPT_UNDNAME);
2505 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2510 static void dump_backtrace_for_thread(HANDLE hThread)
2517 if (!init_backtrace())
2520 /* can't use this function for current thread as GetThreadContext
2521 * doesn't support getting context from current thread */
2522 if (hThread == GetCurrentThread())
2525 DPRINTF("Backtrace:\n");
2527 _DBUS_ZERO(context);
2528 context.ContextFlags = CONTEXT_FULL;
2530 SuspendThread(hThread);
2532 if (!GetThreadContext(hThread, &context))
2534 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2535 ResumeThread(hThread);
2542 sf.AddrFrame.Offset = context.Ebp;
2543 sf.AddrFrame.Mode = AddrModeFlat;
2544 sf.AddrPC.Offset = context.Eip;
2545 sf.AddrPC.Mode = AddrModeFlat;
2546 dwImageType = IMAGE_FILE_MACHINE_I386;
2548 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2549 sf.AddrPC.Offset = context.Rip;
2550 sf.AddrPC.Mode = AddrModeFlat;
2551 sf.AddrFrame.Offset = context.Rsp;
2552 sf.AddrFrame.Mode = AddrModeFlat;
2553 sf.AddrStack.Offset = context.Rsp;
2554 sf.AddrStack.Mode = AddrModeFlat;
2556 dwImageType = IMAGE_FILE_MACHINE_IA64;
2557 sf.AddrPC.Offset = context.StIIP;
2558 sf.AddrPC.Mode = AddrModeFlat;
2559 sf.AddrFrame.Offset = context.IntSp;
2560 sf.AddrFrame.Mode = AddrModeFlat;
2561 sf.AddrBStore.Offset= context.RsBSP;
2562 sf.AddrBStore.Mode = AddrModeFlat;
2563 sf.AddrStack.Offset = context.IntSp;
2564 sf.AddrStack.Mode = AddrModeFlat;
2566 # error You need to fill in the STACKFRAME structure for your architecture
2569 while (pStackWalk(dwImageType, GetCurrentProcess(),
2570 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2571 pSymGetModuleBase, NULL))
2574 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2575 DWORD dwDisplacement;
2577 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2578 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2580 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2581 &dwDisplacement, pSymbol))
2583 IMAGEHLP_MODULE ModuleInfo;
2584 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2586 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2588 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2590 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2591 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2593 else if (dwDisplacement)
2594 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2596 DPRINTF("4\t%s\n", pSymbol->Name);
2599 ResumeThread(hThread);
2602 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2604 dump_backtrace_for_thread((HANDLE)lpParameter);
2608 /* cannot get valid context from current thread, so we have to execute
2609 * backtrace from another thread */
2610 static void dump_backtrace()
2612 HANDLE hCurrentThread;
2615 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2616 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2617 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2619 WaitForSingleObject(hThread, INFINITE);
2620 CloseHandle(hThread);
2621 CloseHandle(hCurrentThread);
2624 #endif /* asserts or tests enabled */
2627 void _dbus_print_backtrace(void)
2633 void _dbus_print_backtrace(void)
2635 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2639 static dbus_uint32_t fromAscii(char ascii)
2641 if(ascii >= '0' && ascii <= '9')
2643 if(ascii >= 'A' && ascii <= 'F')
2644 return ascii - 'A' + 10;
2645 if(ascii >= 'a' && ascii <= 'f')
2646 return ascii - 'a' + 10;
2650 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2651 dbus_bool_t create_if_not_found,
2658 HW_PROFILE_INFOA info;
2659 char *lpc = &info.szHwProfileGuid[0];
2662 // the hw-profile guid lives long enough
2663 if(!GetCurrentHwProfileA(&info))
2665 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2669 // Form: {12340001-4980-1920-6788-123456789012}
2672 u = ((fromAscii(lpc[0]) << 0) |
2673 (fromAscii(lpc[1]) << 4) |
2674 (fromAscii(lpc[2]) << 8) |
2675 (fromAscii(lpc[3]) << 12) |
2676 (fromAscii(lpc[4]) << 16) |
2677 (fromAscii(lpc[5]) << 20) |
2678 (fromAscii(lpc[6]) << 24) |
2679 (fromAscii(lpc[7]) << 28));
2680 machine_id->as_uint32s[0] = u;
2684 u = ((fromAscii(lpc[0]) << 0) |
2685 (fromAscii(lpc[1]) << 4) |
2686 (fromAscii(lpc[2]) << 8) |
2687 (fromAscii(lpc[3]) << 12) |
2688 (fromAscii(lpc[5]) << 16) |
2689 (fromAscii(lpc[6]) << 20) |
2690 (fromAscii(lpc[7]) << 24) |
2691 (fromAscii(lpc[8]) << 28));
2692 machine_id->as_uint32s[1] = u;
2696 u = ((fromAscii(lpc[0]) << 0) |
2697 (fromAscii(lpc[1]) << 4) |
2698 (fromAscii(lpc[2]) << 8) |
2699 (fromAscii(lpc[3]) << 12) |
2700 (fromAscii(lpc[5]) << 16) |
2701 (fromAscii(lpc[6]) << 20) |
2702 (fromAscii(lpc[7]) << 24) |
2703 (fromAscii(lpc[8]) << 28));
2704 machine_id->as_uint32s[2] = u;
2708 u = ((fromAscii(lpc[0]) << 0) |
2709 (fromAscii(lpc[1]) << 4) |
2710 (fromAscii(lpc[2]) << 8) |
2711 (fromAscii(lpc[3]) << 12) |
2712 (fromAscii(lpc[4]) << 16) |
2713 (fromAscii(lpc[5]) << 20) |
2714 (fromAscii(lpc[6]) << 24) |
2715 (fromAscii(lpc[7]) << 28));
2716 machine_id->as_uint32s[3] = u;
2722 HANDLE _dbus_global_lock (const char *mutexname)
2727 mutex = CreateMutexA( NULL, FALSE, mutexname );
2733 gotMutex = WaitForSingleObject( mutex, INFINITE );
2736 case WAIT_ABANDONED:
2737 ReleaseMutex (mutex);
2738 CloseHandle (mutex);
2749 void _dbus_global_unlock (HANDLE mutex)
2751 ReleaseMutex (mutex);
2752 CloseHandle (mutex);
2755 // for proper cleanup in dbus-daemon
2756 static HANDLE hDBusDaemonMutex = NULL;
2757 static HANDLE hDBusSharedMem = NULL;
2758 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2759 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2760 // sync _dbus_get_autolaunch_address
2761 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2762 // mutex to determine if dbus-daemon is already started (per user)
2763 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2764 // named shm for dbus adress info (per user)
2765 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2768 _dbus_get_install_root_as_hash(DBusString *out)
2770 DBusString install_path;
2772 char path[MAX_PATH*2];
2773 int path_size = sizeof(path);
2775 if (!_dbus_get_install_root(path,path_size))
2778 _dbus_string_init(&install_path);
2779 _dbus_string_append(&install_path,path);
2781 _dbus_string_init(out);
2782 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2784 if (!_dbus_sha_compute (&install_path, out))
2791 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2793 _dbus_string_init(out);
2794 _dbus_string_append(out,basestring);
2800 else if (strcmp(scope,"*install-path") == 0
2801 // for 1.3 compatibility
2802 || strcmp(scope,"install-path") == 0)
2805 if (!_dbus_get_install_root_as_hash(&temp))
2807 _dbus_string_free(out);
2810 _dbus_string_append(out,"-");
2811 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2812 _dbus_string_free(&temp);
2814 else if (strcmp(scope,"*user") == 0)
2816 _dbus_string_append(out,"-");
2817 if (!_dbus_append_user_from_current_process(out))
2819 _dbus_string_free(out);
2823 else if (strlen(scope) > 0)
2825 _dbus_string_append(out,"-");
2826 _dbus_string_append(out,scope);
2833 _dbus_get_shm_name (DBusString *out,const char *scope)
2835 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2839 _dbus_get_mutex_name (DBusString *out,const char *scope)
2841 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2845 _dbus_daemon_is_session_bus_address_published (const char *scope)
2848 DBusString mutex_name;
2850 if (!_dbus_get_mutex_name(&mutex_name,scope))
2852 _dbus_string_free( &mutex_name );
2856 if (hDBusDaemonMutex)
2859 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2860 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2862 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2863 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2864 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2866 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2867 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2870 _dbus_global_unlock( lock );
2872 _dbus_string_free( &mutex_name );
2874 if (hDBusDaemonMutex == NULL)
2876 if (GetLastError() == ERROR_ALREADY_EXISTS)
2878 CloseHandle(hDBusDaemonMutex);
2879 hDBusDaemonMutex = NULL;
2882 // mutex wasn't created before, so return false.
2883 // We leave the mutex name allocated for later reusage
2884 // in _dbus_daemon_publish_session_bus_address.
2889 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2892 char *shared_addr = NULL;
2893 DBusString shm_name;
2894 DBusString mutex_name;
2896 _dbus_assert (address);
2898 if (!_dbus_get_mutex_name(&mutex_name,scope))
2900 _dbus_string_free( &mutex_name );
2904 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2905 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2907 if (!hDBusDaemonMutex)
2909 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2911 _dbus_string_free( &mutex_name );
2913 // acquire the mutex
2914 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2916 _dbus_global_unlock( lock );
2917 CloseHandle( hDBusDaemonMutex );
2921 if (!_dbus_get_shm_name(&shm_name,scope))
2923 _dbus_string_free( &shm_name );
2924 _dbus_global_unlock( lock );
2929 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2930 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2931 _dbus_assert( hDBusSharedMem );
2933 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2935 _dbus_assert (shared_addr);
2937 strcpy( shared_addr, address);
2940 UnmapViewOfFile( shared_addr );
2942 _dbus_global_unlock( lock );
2943 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2945 _dbus_string_free( &shm_name );
2950 _dbus_daemon_unpublish_session_bus_address (void)
2954 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2955 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2957 CloseHandle( hDBusSharedMem );
2959 hDBusSharedMem = NULL;
2961 ReleaseMutex( hDBusDaemonMutex );
2963 CloseHandle( hDBusDaemonMutex );
2965 hDBusDaemonMutex = NULL;
2967 _dbus_global_unlock( lock );
2971 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2979 // we know that dbus-daemon is available, so we wait until shm is available
2980 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2981 if( sharedMem == 0 )
2983 if ( sharedMem != 0)
2987 if( sharedMem == 0 )
2990 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2995 _dbus_string_init( address );
2997 _dbus_string_append( address, shared_addr );
3000 UnmapViewOfFile( shared_addr );
3002 CloseHandle( sharedMem );
3008 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
3012 DBusString mutex_name;
3013 dbus_bool_t bRet = TRUE;
3015 if (!_dbus_get_mutex_name(&mutex_name,scope))
3017 _dbus_string_free( &mutex_name );
3021 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3022 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3025 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3026 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3028 ReleaseMutex (daemon);
3029 CloseHandle (daemon);
3031 _dbus_global_unlock( lock );
3032 _dbus_string_free( &mutex_name );
3037 bRet = _dbus_get_autolaunch_shm( address, shm_name );
3040 CloseHandle ( daemon );
3042 _dbus_global_unlock( lock );
3043 _dbus_string_free( &mutex_name );
3049 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3054 PROCESS_INFORMATION pi;
3055 dbus_bool_t retval = FALSE;
3057 char dbus_exe_path[MAX_PATH];
3058 char dbus_args[MAX_PATH * 2];
3059 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3060 DBusString shm_name;
3062 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3064 if (!_dbus_get_shm_name(&shm_name,scope))
3066 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3070 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3072 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3074 _dbus_verbose( "found running dbus daemon at %s\n",
3075 _dbus_string_get_const_data (&shm_name) );
3080 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3082 // Look in directory containing dbus shared library
3084 char dbus_module_path[MAX_PATH];
3087 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3088 "trying path where dbus shared library is located");
3090 hmod = _dbus_win_get_dll_hmodule();
3091 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3094 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3100 char *ext_idx = strrchr(dbus_module_path, '\\');
3103 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3105 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3107 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3108 printf ("or start the daemon manually\n\n");
3111 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3117 ZeroMemory( &si, sizeof(si) );
3119 ZeroMemory( &pi, sizeof(pi) );
3121 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3123 // argv[i] = "--config-file=bus\\session.conf";
3124 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3125 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3127 CloseHandle (pi.hThread);
3128 CloseHandle (pi.hProcess);
3129 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3130 if (retval == FALSE)
3131 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3135 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3141 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3143 _DBUS_ASSERT_ERROR_IS_SET (error);
3145 _dbus_global_unlock (mutex);
3151 /** Makes the file readable by every user in the system.
3153 * @param filename the filename
3154 * @param error error location
3155 * @returns #TRUE if the file's permissions could be changed.
3158 _dbus_make_file_world_readable(const DBusString *filename,
3166 * return the relocated DATADIR
3168 * @returns relocated DATADIR static string
3172 _dbus_windows_get_datadir (void)
3174 return _dbus_replace_install_prefix(DBUS_DATADIR);
3178 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3181 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3182 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3185 * Returns the standard directories for a session bus to look for service
3188 * On Windows this should be data directories:
3190 * %CommonProgramFiles%/dbus
3194 * relocated DBUS_DATADIR
3196 * @param dirs the directory list we are returning
3197 * @returns #FALSE on OOM
3201 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3203 const char *common_progs;
3204 DBusString servicedir_path;
3206 if (!_dbus_string_init (&servicedir_path))
3211 /* On Windows CE, we adjust datadir dynamically to installation location. */
3212 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3214 if (data_dir != NULL)
3216 if (!_dbus_string_append (&servicedir_path, data_dir))
3219 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3225 the code for accessing services requires absolute base pathes
3226 in case DBUS_DATADIR is relative make it absolute
3232 _dbus_string_init_const (&p, DBUS_DATADIR);
3234 if (!_dbus_path_is_absolute (&p))
3236 char install_root[1000];
3237 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3238 if (!_dbus_string_append (&servicedir_path, install_root))
3243 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3246 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3250 common_progs = _dbus_getenv ("CommonProgramFiles");
3252 if (common_progs != NULL)
3254 if (!_dbus_string_append (&servicedir_path, common_progs))
3257 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3261 if (!_dbus_split_paths_and_append (&servicedir_path,
3262 DBUS_STANDARD_SESSION_SERVICEDIR,
3266 _dbus_string_free (&servicedir_path);
3270 _dbus_string_free (&servicedir_path);
3275 * Returns the standard directories for a system bus to look for service
3278 * On UNIX this should be the standard xdg freedesktop.org data directories:
3280 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3286 * On Windows there is no system bus and this function can return nothing.
3288 * @param dirs the directory list we are returning
3289 * @returns #FALSE on OOM
3293 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3300 * Atomically increments an integer
3302 * @param atomic pointer to the integer to increment
3303 * @returns the value before incrementing
3307 _dbus_atomic_inc (DBusAtomic *atomic)
3309 // +/- 1 is needed here!
3310 // no volatile argument with mingw
3311 return InterlockedIncrement (&atomic->value) - 1;
3315 * Atomically decrement an integer
3317 * @param atomic pointer to the integer to decrement
3318 * @returns the value before decrementing
3322 _dbus_atomic_dec (DBusAtomic *atomic)
3324 // +/- 1 is needed here!
3325 // no volatile argument with mingw
3326 return InterlockedDecrement (&atomic->value) + 1;
3330 * Atomically get the value of an integer. It may change at any time
3331 * thereafter, so this is mostly only useful for assertions.
3333 * @param atomic pointer to the integer to get
3334 * @returns the value at this moment
3337 _dbus_atomic_get (DBusAtomic *atomic)
3339 /* In this situation, GLib issues a MemoryBarrier() and then returns
3340 * atomic->value. However, mingw from mingw.org (not to be confused with
3341 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3342 * headers, so we have to get a memory barrier some other way.
3344 * InterlockedIncrement is older, and is documented on MSDN to be a full
3345 * memory barrier, so let's use that.
3349 InterlockedExchange (&dummy, 1);
3351 return atomic->value;
3355 * Called when the bus daemon is signaled to reload its configuration; any
3356 * caches should be nuked. Of course any caches that need explicit reload
3357 * are probably broken, but c'est la vie.
3362 _dbus_flush_caches (void)
3367 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3368 * for Winsock so is abstracted)
3370 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3373 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3375 return errno == WSAEWOULDBLOCK;
3379 * return the absolute path of the dbus installation
3381 * @param s buffer for installation path
3382 * @param len length of buffer
3383 * @returns #FALSE on failure
3386 _dbus_get_install_root(char *prefix, int len)
3388 //To find the prefix, we cut the filename and also \bin\ if present
3392 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3393 if ( pathLength == 0 || GetLastError() != 0 ) {
3397 lastSlash = _mbsrchr(prefix, '\\');
3398 if (lastSlash == NULL) {
3402 //cut off binary name
3405 //cut possible "\\bin"
3407 //this fails if we are in a double-byte system codepage and the
3408 //folder's name happens to end with the *bytes*
3409 //"\\bin"... (I.e. the second byte of some Han character and then
3410 //the Latin "bin", but that is not likely I think...
3411 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3413 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3415 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3422 find config file either from installation or build root according to
3423 the following path layout
3425 bin/dbus-daemon[d].exe
3426 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3427 (the former above is what dbus4win uses, the latter above is
3428 what a "normal" Unix-style "make install" uses)
3431 bin/dbus-daemon[d].exe
3432 bus/<config-file>.conf
3435 _dbus_get_config_file_name(DBusString *config_file, char *s)
3437 char path[MAX_PATH*2];
3438 int path_size = sizeof(path);
3440 if (!_dbus_get_install_root(path,path_size))
3443 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3445 strcat(path,"etc\\");
3447 if (_dbus_file_exists(path))
3449 // find path from executable
3450 if (!_dbus_string_append (config_file, path))
3455 if (!_dbus_get_install_root(path,path_size))
3457 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3459 strcat(path,"etc\\dbus-1\\");
3462 if (_dbus_file_exists(path))
3464 if (!_dbus_string_append (config_file, path))
3469 if (!_dbus_get_install_root(path,path_size))
3471 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3473 strcat(path,"bus\\");
3476 if (_dbus_file_exists(path))
3478 if (!_dbus_string_append (config_file, path))
3487 * Append the absolute path of the system.conf file
3488 * (there is no system bus on Windows so this can just
3489 * return FALSE and print a warning or something)
3491 * @param str the string to append to
3492 * @returns #FALSE if no memory
3495 _dbus_append_system_config_file (DBusString *str)
3497 return _dbus_get_config_file_name(str, "system.conf");
3501 * Append the absolute path of the session.conf file.
3503 * @param str the string to append to
3504 * @returns #FALSE if no memory
3507 _dbus_append_session_config_file (DBusString *str)
3509 return _dbus_get_config_file_name(str, "session.conf");
3512 /* See comment in dbus-sysdeps-unix.c */
3514 _dbus_lookup_session_address (dbus_bool_t *supported,
3515 DBusString *address,
3518 /* Probably fill this in with something based on COM? */
3524 * Appends the directory in which a keyring for the given credentials
3525 * should be stored. The credentials should have either a Windows or
3526 * UNIX user in them. The directory should be an absolute path.
3528 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3529 * be something else, since the dotfile convention is not normal on Windows.
3531 * @param directory string to append directory to
3532 * @param credentials credentials the directory should be for
3534 * @returns #FALSE on no memory
3537 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3538 DBusCredentials *credentials)
3542 const char *homepath;
3543 const char *homedrive;
3545 _dbus_assert (credentials != NULL);
3546 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3548 if (!_dbus_string_init (&homedir))
3551 homedrive = _dbus_getenv("HOMEDRIVE");
3552 if (homedrive != NULL && *homedrive != '\0')
3554 _dbus_string_append(&homedir,homedrive);
3557 homepath = _dbus_getenv("HOMEPATH");
3558 if (homepath != NULL && *homepath != '\0')
3560 _dbus_string_append(&homedir,homepath);
3563 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3565 const char *override;
3567 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3568 if (override != NULL && *override != '\0')
3570 _dbus_string_set_length (&homedir, 0);
3571 if (!_dbus_string_append (&homedir, override))
3574 _dbus_verbose ("Using fake homedir for testing: %s\n",
3575 _dbus_string_get_const_data (&homedir));
3579 static dbus_bool_t already_warned = FALSE;
3580 if (!already_warned)
3582 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3583 already_warned = TRUE;
3590 /* It's not possible to create a .something directory in Windows CE
3591 using the file explorer. */
3592 #define KEYRING_DIR "dbus-keyrings"
3594 #define KEYRING_DIR ".dbus-keyrings"
3597 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3598 if (!_dbus_concat_dir_and_file (&homedir,
3602 if (!_dbus_string_copy (&homedir, 0,
3603 directory, _dbus_string_get_length (directory))) {
3607 _dbus_string_free (&homedir);
3611 _dbus_string_free (&homedir);
3615 /** Checks if a file exists
3617 * @param file full path to the file
3618 * @returns #TRUE if file exists
3621 _dbus_file_exists (const char *file)
3623 DWORD attributes = GetFileAttributesA (file);
3625 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3632 * A wrapper around strerror() because some platforms
3633 * may be lame and not have strerror().
3635 * @param error_number errno.
3636 * @returns error description.
3639 _dbus_strerror (int error_number)
3647 switch (error_number)
3650 return "Interrupted function call";
3652 return "Permission denied";
3654 return "Bad address";
3656 return "Invalid argument";
3658 return "Too many open files";
3659 case WSAEWOULDBLOCK:
3660 return "Resource temporarily unavailable";
3661 case WSAEINPROGRESS:
3662 return "Operation now in progress";
3664 return "Operation already in progress";
3666 return "Socket operation on nonsocket";
3667 case WSAEDESTADDRREQ:
3668 return "Destination address required";
3670 return "Message too long";
3672 return "Protocol wrong type for socket";
3673 case WSAENOPROTOOPT:
3674 return "Bad protocol option";
3675 case WSAEPROTONOSUPPORT:
3676 return "Protocol not supported";
3677 case WSAESOCKTNOSUPPORT:
3678 return "Socket type not supported";
3680 return "Operation not supported";
3681 case WSAEPFNOSUPPORT:
3682 return "Protocol family not supported";
3683 case WSAEAFNOSUPPORT:
3684 return "Address family not supported by protocol family";
3686 return "Address already in use";
3687 case WSAEADDRNOTAVAIL:
3688 return "Cannot assign requested address";
3690 return "Network is down";
3691 case WSAENETUNREACH:
3692 return "Network is unreachable";
3694 return "Network dropped connection on reset";
3695 case WSAECONNABORTED:
3696 return "Software caused connection abort";
3698 return "Connection reset by peer";
3700 return "No buffer space available";
3702 return "Socket is already connected";
3704 return "Socket is not connected";
3706 return "Cannot send after socket shutdown";
3708 return "Connection timed out";
3709 case WSAECONNREFUSED:
3710 return "Connection refused";
3712 return "Host is down";
3713 case WSAEHOSTUNREACH:
3714 return "No route to host";
3716 return "Too many processes";
3718 return "Graceful shutdown in progress";
3719 case WSATYPE_NOT_FOUND:
3720 return "Class type not found";
3721 case WSAHOST_NOT_FOUND:
3722 return "Host not found";
3724 return "Nonauthoritative host not found";
3725 case WSANO_RECOVERY:
3726 return "This is a nonrecoverable error";
3728 return "Valid name, no data record of requested type";
3729 case WSA_INVALID_HANDLE:
3730 return "Specified event object handle is invalid";
3731 case WSA_INVALID_PARAMETER:
3732 return "One or more parameters are invalid";
3733 case WSA_IO_INCOMPLETE:
3734 return "Overlapped I/O event object not in signaled state";
3735 case WSA_IO_PENDING:
3736 return "Overlapped operations will complete later";
3737 case WSA_NOT_ENOUGH_MEMORY:
3738 return "Insufficient memory available";
3739 case WSA_OPERATION_ABORTED:
3740 return "Overlapped operation aborted";
3741 #ifdef WSAINVALIDPROCTABLE
3743 case WSAINVALIDPROCTABLE:
3744 return "Invalid procedure table from service provider";
3746 #ifdef WSAINVALIDPROVIDER
3748 case WSAINVALIDPROVIDER:
3749 return "Invalid service provider version number";
3751 #ifdef WSAPROVIDERFAILEDINIT
3753 case WSAPROVIDERFAILEDINIT:
3754 return "Unable to initialize a service provider";
3757 case WSASYSCALLFAILURE:
3758 return "System call failure";
3760 msg = strerror (error_number);
3769 * Assigns an error name and message corresponding to a Win32 error
3770 * code to a DBusError. Does nothing if error is #NULL.
3772 * @param error the error.
3773 * @param code the Win32 error code
3776 _dbus_win_set_error_from_win_error (DBusError *error,
3781 /* As we want the English message, use the A API */
3782 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3783 FORMAT_MESSAGE_IGNORE_INSERTS |
3784 FORMAT_MESSAGE_FROM_SYSTEM,
3785 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3786 (LPSTR) &msg, 0, NULL);
3791 msg_copy = dbus_malloc (strlen (msg));
3792 strcpy (msg_copy, msg);
3795 dbus_set_error (error, "win32.error", "%s", msg_copy);
3798 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3802 _dbus_win_warn_win_error (const char *message,
3807 dbus_error_init (&error);
3808 _dbus_win_set_error_from_win_error (&error, code);
3809 _dbus_warn ("%s: %s\n", message, error.message);
3810 dbus_error_free (&error);
3814 * Removes a directory; Directory must be empty
3816 * @param filename directory filename
3817 * @param error initialized error object
3818 * @returns #TRUE on success
3821 _dbus_delete_directory (const DBusString *filename,
3824 const char *filename_c;
3826 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3828 filename_c = _dbus_string_get_const_data (filename);
3830 if (RemoveDirectoryA (filename_c) == 0)
3832 char *emsg = _dbus_win_error_string (GetLastError ());
3833 dbus_set_error (error, _dbus_win_error_from_last_error (),
3834 "Failed to remove directory %s: %s",
3836 _dbus_win_free_error_string (emsg);
3844 * Checks whether the filename is an absolute path
3846 * @param filename the filename
3847 * @returns #TRUE if an absolute path
3850 _dbus_path_is_absolute (const DBusString *filename)
3852 if (_dbus_string_get_length (filename) > 0)
3853 return _dbus_string_get_byte (filename, 1) == ':'
3854 || _dbus_string_get_byte (filename, 0) == '\\'
3855 || _dbus_string_get_byte (filename, 0) == '/';
3861 _dbus_check_setuid (void)
3866 /** @} end of sysdeps-win */
3867 /* tests in dbus-sysdeps-util.c */