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
125 load_ex_ip_helper_procedures(void)
127 HMODULE hModule = LoadLibrary ("iphlpapi.dll");
130 _dbus_verbose ("could not load iphlpapi.dll\n");
134 lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
135 if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
137 _dbus_verbose ("could not find function AllocateAndGetTcpExTableFromStack in iphlpapi.dll\n");
144 * get pid from localhost tcp connection using peer_port
145 * This function is available on WinXP >= SP3
146 * @param peer_port peers tcp port
147 * @return process id or 0 if connection has not been found
150 get_pid_from_extended_tcp_table(int peer_port)
153 DWORD errorCode, size, i;
154 MIB_TCPTABLE_OWNER_PID *tcp_table;
157 GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
159 tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
160 if (tcp_table == NULL)
162 _dbus_verbose ("Error allocating memory\n");
168 _dbus_win_warn_win_error ("unexpected error returned from GetExtendedTcpTable", errorCode);
172 if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
174 _dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
175 dbus_free (tcp_table);
180 for (i = 0; i < tcp_table->dwNumEntries; i++)
182 MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
183 int local_address = ntohl (p->dwLocalAddr);
184 int local_port = ntohs (p->dwLocalPort);
185 if (p->dwState == MIB_TCP_STATE_ESTAB
186 && local_address == INADDR_LOOPBACK && local_port == peer_port)
187 result = p->dwOwningPid;
190 dbus_free (tcp_table);
191 _dbus_verbose ("got pid %lu\n", result);
196 * get pid from localhost tcp connection using peer_port
197 * This function is available on all WinXP versions, but
198 * not in wine (at least version <= 1.6.0)
199 * @param peer_port peers tcp port
200 * @return process id or 0 if connection has not been found
203 get_pid_from_tcp_ex_table(int peer_port)
207 PMIB_TCPTABLE_EX tcp_table = NULL;
209 if (!load_ex_ip_helper_procedures ())
212 ("Error not been able to load iphelper procedures\n");
216 errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
218 if (errorCode != NO_ERROR)
221 ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
226 for (i = 0; i < tcp_table->dwNumEntries; i++)
228 _MIB_TCPROW_EX *p = &tcp_table->table[i];
229 int local_port = ntohs (p->dwLocalPort);
230 int local_address = ntohl (p->dwLocalAddr);
231 if (local_address == INADDR_LOOPBACK && local_port == peer_port)
233 result = p->dwOwningPid;
238 HeapFree (GetProcessHeap(), 0, tcp_table);
239 _dbus_verbose ("got pid %lu\n", result);
244 * @brief return peer process id from tcp handle for localhost connections
245 * @param handle tcp socket descriptor
246 * @return process id or 0 in case the process id could not be fetched
249 _dbus_get_peer_pid_from_tcp_handle (int handle)
251 struct sockaddr_storage addr;
252 socklen_t len = sizeof (addr);
256 dbus_bool_t is_localhost = FALSE;
258 getpeername (handle, (struct sockaddr *) &addr, &len);
260 if (addr.ss_family == AF_INET)
262 struct sockaddr_in *s = (struct sockaddr_in *) &addr;
263 peer_port = ntohs (s->sin_port);
264 is_localhost = (ntohl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
266 else if (addr.ss_family == AF_INET6)
268 _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
271 struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
272 peer_port = ntohs (s->sin6_port);
273 is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
274 _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
279 _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
285 _dbus_verbose ("could not fetch process id from remote process\n");
292 ("Error not been able to fetch tcp peer port from connection\n");
296 _dbus_verbose ("trying to get peers pid");
298 result = get_pid_from_extended_tcp_table (peer_port);
301 result = get_pid_from_tcp_ex_table (peer_port);
305 /* Convert GetLastError() to a dbus error. */
307 _dbus_win_error_from_last_error (void)
309 switch (GetLastError())
312 return DBUS_ERROR_FAILED;
314 case ERROR_NO_MORE_FILES:
315 case ERROR_TOO_MANY_OPEN_FILES:
316 return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
318 case ERROR_ACCESS_DENIED:
319 case ERROR_CANNOT_MAKE:
320 return DBUS_ERROR_ACCESS_DENIED;
322 case ERROR_NOT_ENOUGH_MEMORY:
323 return DBUS_ERROR_NO_MEMORY;
325 case ERROR_FILE_EXISTS:
326 return DBUS_ERROR_FILE_EXISTS;
328 case ERROR_FILE_NOT_FOUND:
329 case ERROR_PATH_NOT_FOUND:
330 return DBUS_ERROR_FILE_NOT_FOUND;
333 return DBUS_ERROR_FAILED;
338 _dbus_win_error_string (int error_number)
342 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
343 FORMAT_MESSAGE_IGNORE_INSERTS |
344 FORMAT_MESSAGE_FROM_SYSTEM,
345 NULL, error_number, 0,
346 (LPSTR) &msg, 0, NULL);
348 if (msg[strlen (msg) - 1] == '\n')
349 msg[strlen (msg) - 1] = '\0';
350 if (msg[strlen (msg) - 1] == '\r')
351 msg[strlen (msg) - 1] = '\0';
357 _dbus_win_free_error_string (char *string)
368 * Thin wrapper around the read() system call that appends
369 * the data it reads to the DBusString buffer. It appends
370 * up to the given count, and returns the same value
371 * and same errno as read(). The only exception is that
372 * _dbus_read_socket() handles EINTR for you.
373 * _dbus_read_socket() can return ENOMEM, even though
374 * regular UNIX read doesn't.
376 * @param fd the file descriptor to read from
377 * @param buffer the buffer to append data to
378 * @param count the amount of data to read
379 * @returns the number of bytes read or -1
383 _dbus_read_socket (int fd,
391 _dbus_assert (count >= 0);
393 start = _dbus_string_get_length (buffer);
395 if (!_dbus_string_lengthen (buffer, count))
397 _dbus_win_set_errno (ENOMEM);
401 data = _dbus_string_get_data_len (buffer, start, count);
405 _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
406 bytes_read = recv (fd, data, count, 0);
408 if (bytes_read == SOCKET_ERROR)
410 DBUS_SOCKET_SET_ERRNO();
411 _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
415 _dbus_verbose ("recv: = %d\n", bytes_read);
423 /* put length back (note that this doesn't actually realloc anything) */
424 _dbus_string_set_length (buffer, start);
430 /* put length back (doesn't actually realloc) */
431 _dbus_string_set_length (buffer, start + bytes_read);
435 _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
443 * Thin wrapper around the write() system call that writes a part of a
444 * DBusString and handles EINTR for you.
446 * @param fd the file descriptor to write
447 * @param buffer the buffer to write data from
448 * @param start the first byte in the buffer to write
449 * @param len the number of bytes to try to write
450 * @returns the number of bytes written or -1 on error
453 _dbus_write_socket (int fd,
454 const DBusString *buffer,
461 data = _dbus_string_get_const_data_len (buffer, start, len);
465 _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
466 bytes_written = send (fd, data, len, 0);
468 if (bytes_written == SOCKET_ERROR)
470 DBUS_SOCKET_SET_ERRNO();
471 _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
475 _dbus_verbose ("send: = %d\n", bytes_written);
477 if (bytes_written < 0 && errno == EINTR)
481 if (bytes_written > 0)
482 _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
485 return bytes_written;
490 * Closes a file descriptor.
492 * @param fd the file descriptor
493 * @param error error object
494 * @returns #FALSE if error set
497 _dbus_close_socket (int fd,
500 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
503 if (closesocket (fd) == SOCKET_ERROR)
505 DBUS_SOCKET_SET_ERRNO ();
510 dbus_set_error (error, _dbus_error_from_errno (errno),
511 "Could not close socket: socket=%d, , %s",
512 fd, _dbus_strerror_from_errno ());
515 _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
521 * Sets the file descriptor to be close
522 * on exec. Should be called for all file
523 * descriptors in D-Bus code.
525 * @param handle the Windows HANDLE
528 _dbus_fd_set_close_on_exec (intptr_t handle)
530 if ( !SetHandleInformation( (HANDLE) handle,
531 HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
532 0 /*disable both flags*/ ) )
534 _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
539 * Sets a file descriptor to be nonblocking.
541 * @param handle the file descriptor.
542 * @param error address of error location.
543 * @returns #TRUE on success.
546 _dbus_set_fd_nonblocking (int handle,
551 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
553 if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
555 DBUS_SOCKET_SET_ERRNO ();
556 dbus_set_error (error, _dbus_error_from_errno (errno),
557 "Failed to set socket %d:%d to nonblocking: %s", handle,
558 _dbus_strerror_from_errno ());
567 * Like _dbus_write() but will use writev() if possible
568 * to write both buffers in sequence. The return value
569 * is the number of bytes written in the first buffer,
570 * plus the number written in the second. If the first
571 * buffer is written successfully and an error occurs
572 * writing the second, the number of bytes in the first
573 * is returned (i.e. the error is ignored), on systems that
574 * don't have writev. Handles EINTR for you.
575 * The second buffer may be #NULL.
577 * @param fd the file descriptor
578 * @param buffer1 first buffer
579 * @param start1 first byte to write in first buffer
580 * @param len1 number of bytes to write from first buffer
581 * @param buffer2 second buffer, or #NULL
582 * @param start2 first byte to write in second buffer
583 * @param len2 number of bytes to write in second buffer
584 * @returns total bytes written from both buffers, or -1 on error
587 _dbus_write_socket_two (int fd,
588 const DBusString *buffer1,
591 const DBusString *buffer2,
601 _dbus_assert (buffer1 != NULL);
602 _dbus_assert (start1 >= 0);
603 _dbus_assert (start2 >= 0);
604 _dbus_assert (len1 >= 0);
605 _dbus_assert (len2 >= 0);
608 data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
611 data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
619 vectors[0].buf = (char*) data1;
620 vectors[0].len = len1;
621 vectors[1].buf = (char*) data2;
622 vectors[1].len = len2;
626 _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
635 if (rc == SOCKET_ERROR)
637 DBUS_SOCKET_SET_ERRNO ();
638 _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
642 _dbus_verbose ("WSASend: = %ld\n", bytes_written);
644 if (bytes_written < 0 && errno == EINTR)
647 return bytes_written;
651 _dbus_socket_is_invalid (int fd)
653 return fd == INVALID_SOCKET ? TRUE : FALSE;
659 * Opens the client side of a Windows named pipe. The connection D-BUS
660 * file descriptor index is returned. It is set up as nonblocking.
662 * @param path the path to named pipe socket
663 * @param error return location for error code
664 * @returns connection D-BUS file descriptor or -1 on error
667 _dbus_connect_named_pipe (const char *path,
670 _dbus_assert_not_reached ("not implemented");
678 _dbus_win_startup_winsock (void)
680 /* Straight from MSDN, deuglified */
682 static dbus_bool_t beenhere = FALSE;
684 WORD wVersionRequested;
691 wVersionRequested = MAKEWORD (2, 0);
693 err = WSAStartup (wVersionRequested, &wsaData);
696 _dbus_assert_not_reached ("Could not initialize WinSock");
700 /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
701 * supports versions greater than 2.0 in addition to 2.0, it will
702 * still return 2.0 in wVersion since that is the version we
705 if (LOBYTE (wsaData.wVersion) != 2 ||
706 HIBYTE (wsaData.wVersion) != 0)
708 _dbus_assert_not_reached ("No usable WinSock found");
723 /************************************************************************
727 ************************************************************************/
730 * Measure the message length without terminating nul
732 int _dbus_printf_string_upper_bound (const char *format,
735 /* MSVCRT's vsnprintf semantics are a bit different */
741 bufsize = sizeof (buf);
742 DBUS_VA_COPY (args_copy, args);
743 len = _vsnprintf (buf, bufsize - 1, format, args_copy);
746 while (len == -1) /* try again */
752 p = malloc (bufsize);
757 DBUS_VA_COPY (args_copy, args);
758 len = _vsnprintf (p, bufsize - 1, format, args_copy);
768 * Returns the UTF-16 form of a UTF-8 string. The result should be
769 * freed with dbus_free() when no longer needed.
771 * @param str the UTF-8 string
772 * @param error return location for error code
775 _dbus_win_utf8_to_utf16 (const char *str,
782 _dbus_string_init_const (&s, str);
784 if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
786 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
790 n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
794 _dbus_win_set_error_from_win_error (error, GetLastError ());
798 retval = dbus_new (wchar_t, n);
802 _DBUS_SET_OOM (error);
806 if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
809 dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
817 * Returns the UTF-8 form of a UTF-16 string. The result should be
818 * freed with dbus_free() when no longer needed.
820 * @param str the UTF-16 string
821 * @param error return location for error code
824 _dbus_win_utf16_to_utf8 (const wchar_t *str,
830 n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
834 _dbus_win_set_error_from_win_error (error, GetLastError ());
838 retval = dbus_malloc (n);
842 _DBUS_SET_OOM (error);
846 if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
849 dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
861 /************************************************************************
864 ************************************************************************/
867 _dbus_win_account_to_sid (const wchar_t *waccount,
871 dbus_bool_t retval = FALSE;
872 DWORD sid_length, wdomain_length;
880 if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
881 NULL, &wdomain_length, &use) &&
882 GetLastError () != ERROR_INSUFFICIENT_BUFFER)
884 _dbus_win_set_error_from_win_error (error, GetLastError ());
888 *ppsid = dbus_malloc (sid_length);
891 _DBUS_SET_OOM (error);
895 wdomain = dbus_new (wchar_t, wdomain_length);
898 _DBUS_SET_OOM (error);
902 if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
903 wdomain, &wdomain_length, &use))
905 _dbus_win_set_error_from_win_error (error, GetLastError ());
909 if (!IsValidSid ((PSID) *ppsid))
911 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
929 /** @} end of sysdeps-win */
933 * The only reason this is separate from _dbus_getpid() is to allow it
934 * on Windows for logging but not for other purposes.
936 * @returns process ID to put in log messages
939 _dbus_pid_for_log (void)
941 return _dbus_getpid ();
946 static BOOL is_winxp_sp3_or_lower()
948 OSVERSIONINFOEX osvi;
949 DWORDLONG dwlConditionMask = 0;
950 int op=VER_LESS_EQUAL;
952 // Initialize the OSVERSIONINFOEX structure.
954 ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
955 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
956 osvi.dwMajorVersion = 5;
957 osvi.dwMinorVersion = 1;
958 osvi.wServicePackMajor = 3;
959 osvi.wServicePackMinor = 0;
961 // Initialize the condition mask.
963 VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
964 VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
965 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
966 VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
970 return VerifyVersionInfo(
972 VER_MAJORVERSION | VER_MINORVERSION |
973 VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
978 * @param sid points to sid buffer, need to be freed with LocalFree()
979 * @param process_id the process id for which the sid should be returned
980 * @returns process sid
983 _dbus_getsid(char **sid, dbus_pid_t process_id)
985 HANDLE process_token = INVALID_HANDLE_VALUE;
986 TOKEN_USER *token_user = NULL;
991 HANDLE process_handle = OpenProcess(is_winxp_sp3_or_lower() ? PROCESS_QUERY_INFORMATION : PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
993 if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
995 _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
998 if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
999 && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
1000 || (token_user = alloca (n)) == NULL
1001 || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
1003 _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
1006 psid = token_user->User.Sid;
1007 if (!IsValidSid (psid))
1009 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1012 if (!ConvertSidToStringSidA (psid, sid))
1014 _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1021 CloseHandle (process_handle);
1022 if (process_token != INVALID_HANDLE_VALUE)
1023 CloseHandle (process_token);
1025 _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
1030 /************************************************************************
1034 ************************************************************************/
1037 * Creates a full-duplex pipe (as in socketpair()).
1038 * Sets both ends of the pipe nonblocking.
1040 * @param fd1 return location for one end
1041 * @param fd2 return location for the other end
1042 * @param blocking #TRUE if pipe should be blocking
1043 * @param error error return
1044 * @returns #FALSE on failure (if error is set)
1047 _dbus_full_duplex_pipe (int *fd1,
1049 dbus_bool_t blocking,
1052 SOCKET temp, socket1 = -1, socket2 = -1;
1053 struct sockaddr_in saddr;
1057 _dbus_win_startup_winsock ();
1059 temp = socket (AF_INET, SOCK_STREAM, 0);
1060 if (temp == INVALID_SOCKET)
1062 DBUS_SOCKET_SET_ERRNO ();
1067 saddr.sin_family = AF_INET;
1069 saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1071 if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1073 DBUS_SOCKET_SET_ERRNO ();
1077 if (listen (temp, 1) == SOCKET_ERROR)
1079 DBUS_SOCKET_SET_ERRNO ();
1083 len = sizeof (saddr);
1084 if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1086 DBUS_SOCKET_SET_ERRNO ();
1090 socket1 = socket (AF_INET, SOCK_STREAM, 0);
1091 if (socket1 == INVALID_SOCKET)
1093 DBUS_SOCKET_SET_ERRNO ();
1097 if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1099 DBUS_SOCKET_SET_ERRNO ();
1103 socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1104 if (socket2 == INVALID_SOCKET)
1106 DBUS_SOCKET_SET_ERRNO ();
1113 if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1115 DBUS_SOCKET_SET_ERRNO ();
1120 if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1122 DBUS_SOCKET_SET_ERRNO ();
1130 _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
1131 *fd1, socket1, *fd2, socket2);
1138 closesocket (socket2);
1140 closesocket (socket1);
1144 dbus_set_error (error, _dbus_error_from_errno (errno),
1145 "Could not setup socket pair: %s",
1146 _dbus_strerror_from_errno ());
1152 * Wrapper for poll().
1154 * @param fds the file descriptors to poll
1155 * @param n_fds number of descriptors in the array
1156 * @param timeout_milliseconds timeout or -1 for infinite
1157 * @returns numbers of fds with revents, or <0 on error
1160 _dbus_poll (DBusPollFD *fds,
1162 int timeout_milliseconds)
1164 #define USE_CHRIS_IMPL 0
1168 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1169 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1177 #define DBUS_STACK_WSAEVENTS 256
1178 WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1179 WSAEVENT *pEvents = NULL;
1180 if (n_fds > DBUS_STACK_WSAEVENTS)
1181 pEvents = calloc(sizeof(WSAEVENT), n_fds);
1183 pEvents = eventsOnStack;
1186 #ifdef DBUS_ENABLE_VERBOSE_MODE
1188 msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1189 for (i = 0; i < n_fds; i++)
1191 DBusPollFD *fdp = &fds[i];
1194 if (fdp->events & _DBUS_POLLIN)
1195 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1197 if (fdp->events & _DBUS_POLLOUT)
1198 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1200 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1202 // FIXME: more robust code for long msg
1203 // create on heap when msg[] becomes too small
1204 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1206 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1210 msgp += sprintf (msgp, "\n");
1211 _dbus_verbose ("%s",msg);
1213 for (i = 0; i < n_fds; i++)
1215 DBusPollFD *fdp = &fds[i];
1217 long lNetworkEvents = FD_OOB;
1219 ev = WSACreateEvent();
1221 if (fdp->events & _DBUS_POLLIN)
1222 lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1224 if (fdp->events & _DBUS_POLLOUT)
1225 lNetworkEvents |= FD_WRITE | FD_CONNECT;
1227 WSAEventSelect(fdp->fd, ev, lNetworkEvents);
1233 ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1235 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1237 DBUS_SOCKET_SET_ERRNO ();
1238 if (errno != WSAEWOULDBLOCK)
1239 _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1242 else if (ready == WSA_WAIT_TIMEOUT)
1244 _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1247 else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1250 msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1252 for (i = 0; i < n_fds; i++)
1254 DBusPollFD *fdp = &fds[i];
1255 WSANETWORKEVENTS ne;
1259 WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1261 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1262 fdp->revents |= _DBUS_POLLIN;
1264 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1265 fdp->revents |= _DBUS_POLLOUT;
1267 if (ne.lNetworkEvents & (FD_OOB))
1268 fdp->revents |= _DBUS_POLLERR;
1270 if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1271 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1273 if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1274 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1276 if (ne.lNetworkEvents & (FD_OOB))
1277 msgp += sprintf (msgp, "E:%d ", fdp->fd);
1279 msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1281 if(ne.lNetworkEvents)
1284 WSAEventSelect(fdp->fd, pEvents[i], 0);
1287 msgp += sprintf (msgp, "\n");
1288 _dbus_verbose ("%s",msg);
1292 _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1296 for(i = 0; i < n_fds; i++)
1298 WSACloseEvent(pEvents[i]);
1301 if (n_fds > DBUS_STACK_WSAEVENTS)
1306 #else /* USE_CHRIS_IMPL */
1308 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1309 char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1312 fd_set read_set, write_set, err_set;
1318 FD_ZERO (&read_set);
1319 FD_ZERO (&write_set);
1323 #ifdef DBUS_ENABLE_VERBOSE_MODE
1325 msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1326 for (i = 0; i < n_fds; i++)
1328 DBusPollFD *fdp = &fds[i];
1331 if (fdp->events & _DBUS_POLLIN)
1332 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1334 if (fdp->events & _DBUS_POLLOUT)
1335 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1337 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1339 // FIXME: more robust code for long msg
1340 // create on heap when msg[] becomes too small
1341 if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1343 _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1347 msgp += sprintf (msgp, "\n");
1348 _dbus_verbose ("%s",msg);
1350 for (i = 0; i < n_fds; i++)
1352 DBusPollFD *fdp = &fds[i];
1354 if (fdp->events & _DBUS_POLLIN)
1355 FD_SET (fdp->fd, &read_set);
1357 if (fdp->events & _DBUS_POLLOUT)
1358 FD_SET (fdp->fd, &write_set);
1360 FD_SET (fdp->fd, &err_set);
1362 max_fd = MAX (max_fd, fdp->fd);
1365 // Avoid random lockups with send(), for lack of a better solution so far
1366 tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1367 tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1369 ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1371 if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1373 DBUS_SOCKET_SET_ERRNO ();
1374 if (errno != WSAEWOULDBLOCK)
1375 _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1377 else if (ready == 0)
1378 _dbus_verbose ("select: = 0\n");
1382 #ifdef DBUS_ENABLE_VERBOSE_MODE
1384 msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1386 for (i = 0; i < n_fds; i++)
1388 DBusPollFD *fdp = &fds[i];
1390 if (FD_ISSET (fdp->fd, &read_set))
1391 msgp += sprintf (msgp, "R:%d ", fdp->fd);
1393 if (FD_ISSET (fdp->fd, &write_set))
1394 msgp += sprintf (msgp, "W:%d ", fdp->fd);
1396 if (FD_ISSET (fdp->fd, &err_set))
1397 msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1399 msgp += sprintf (msgp, "\n");
1400 _dbus_verbose ("%s",msg);
1403 for (i = 0; i < n_fds; i++)
1405 DBusPollFD *fdp = &fds[i];
1409 if (FD_ISSET (fdp->fd, &read_set))
1410 fdp->revents |= _DBUS_POLLIN;
1412 if (FD_ISSET (fdp->fd, &write_set))
1413 fdp->revents |= _DBUS_POLLOUT;
1415 if (FD_ISSET (fdp->fd, &err_set))
1416 fdp->revents |= _DBUS_POLLERR;
1420 #endif /* USE_CHRIS_IMPL */
1426 /******************************************************************************
1428 Original CVS version of dbus-sysdeps.c
1430 ******************************************************************************/
1431 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1432 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1434 * Copyright (C) 2002, 2003 Red Hat, Inc.
1435 * Copyright (C) 2003 CodeFactory AB
1436 * Copyright (C) 2005 Novell, Inc.
1438 * Licensed under the Academic Free License version 2.1
1440 * This program is free software; you can redistribute it and/or modify
1441 * it under the terms of the GNU General Public License as published by
1442 * the Free Software Foundation; either version 2 of the License, or
1443 * (at your option) any later version.
1445 * This program is distributed in the hope that it will be useful,
1446 * but WITHOUT ANY WARRANTY; without even the implied warranty of
1447 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1448 * GNU General Public License for more details.
1450 * You should have received a copy of the GNU General Public License
1451 * along with this program; if not, write to the Free Software
1452 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1458 * Exit the process, returning the given value.
1460 * @param code the exit code
1463 _dbus_exit (int code)
1469 * Creates a socket and connects to a socket at the given host
1470 * and port. The connection fd is returned, and is set up as
1473 * @param host the host name to connect to
1474 * @param port the port to connect to
1475 * @param family the address family to listen on, NULL for all
1476 * @param error return location for error code
1477 * @returns connection file descriptor or -1 on error
1480 _dbus_connect_tcp_socket (const char *host,
1485 return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1489 _dbus_connect_tcp_socket_with_nonce (const char *host,
1492 const char *noncefile,
1496 struct addrinfo hints;
1497 struct addrinfo *ai, *tmp;
1499 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1501 _dbus_win_startup_winsock ();
1506 hints.ai_family = AF_UNSPEC;
1507 else if (!strcmp(family, "ipv4"))
1508 hints.ai_family = AF_INET;
1509 else if (!strcmp(family, "ipv6"))
1510 hints.ai_family = AF_INET6;
1513 dbus_set_error (error,
1514 DBUS_ERROR_INVALID_ARGS,
1515 "Unknown address family %s", family);
1518 hints.ai_protocol = IPPROTO_TCP;
1519 hints.ai_socktype = SOCK_STREAM;
1520 #ifdef AI_ADDRCONFIG
1521 hints.ai_flags = AI_ADDRCONFIG;
1526 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1528 dbus_set_error (error,
1529 _dbus_error_from_errno (res),
1530 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1531 host, port, _dbus_strerror(res), res);
1538 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1540 DBUS_SOCKET_SET_ERRNO ();
1541 dbus_set_error (error,
1542 _dbus_error_from_errno (errno),
1543 "Failed to open socket: %s",
1544 _dbus_strerror_from_errno ());
1548 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1550 if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1552 DBUS_SOCKET_SET_ERRNO ();
1565 dbus_set_error (error,
1566 _dbus_error_from_errno (errno),
1567 "Failed to connect to socket \"%s:%s\" %s",
1568 host, port, _dbus_strerror_from_errno ());
1572 if (noncefile != NULL)
1574 DBusString noncefileStr;
1576 if (!_dbus_string_init (&noncefileStr) ||
1577 !_dbus_string_append(&noncefileStr, noncefile))
1580 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1584 ret = _dbus_send_nonce (fd, &noncefileStr, error);
1586 _dbus_string_free (&noncefileStr);
1595 _dbus_fd_set_close_on_exec (fd);
1597 if (!_dbus_set_fd_nonblocking (fd, error))
1607 * Creates a socket and binds it to the given path, then listens on
1608 * the socket. The socket is set to be nonblocking. In case of port=0
1609 * a random free port is used and returned in the port parameter.
1610 * If inaddr_any is specified, the hostname is ignored.
1612 * @param host the host name to listen on
1613 * @param port the port to listen on, if zero a free port will be used
1614 * @param family the address family to listen on, NULL for all
1615 * @param retport string to return the actual port listened on
1616 * @param fds_p location to store returned file descriptors
1617 * @param error return location for errors
1618 * @returns the number of listening file descriptors or -1 on error
1622 _dbus_listen_tcp_socket (const char *host,
1625 DBusString *retport,
1629 int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1630 struct addrinfo hints;
1631 struct addrinfo *ai, *tmp;
1633 // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1634 //That's required for family == IPv6(which is the default on Vista if family is not given)
1635 //So we use our own union instead of sockaddr_gen:
1638 struct sockaddr Address;
1639 struct sockaddr_in AddressIn;
1640 struct sockaddr_in6 AddressIn6;
1644 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1646 _dbus_win_startup_winsock ();
1651 hints.ai_family = AF_UNSPEC;
1652 else if (!strcmp(family, "ipv4"))
1653 hints.ai_family = AF_INET;
1654 else if (!strcmp(family, "ipv6"))
1655 hints.ai_family = AF_INET6;
1658 dbus_set_error (error,
1659 DBUS_ERROR_INVALID_ARGS,
1660 "Unknown address family %s", family);
1664 hints.ai_protocol = IPPROTO_TCP;
1665 hints.ai_socktype = SOCK_STREAM;
1666 #ifdef AI_ADDRCONFIG
1667 hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1669 hints.ai_flags = AI_PASSIVE;
1672 redo_lookup_with_port:
1673 if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1675 dbus_set_error (error,
1676 _dbus_error_from_errno (res),
1677 "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1678 host ? host : "*", port, _dbus_strerror(res), res);
1685 int fd = -1, *newlisten_fd;
1686 if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1688 DBUS_SOCKET_SET_ERRNO ();
1689 dbus_set_error (error,
1690 _dbus_error_from_errno (errno),
1691 "Failed to open socket: %s",
1692 _dbus_strerror_from_errno ());
1695 _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1697 if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1699 DBUS_SOCKET_SET_ERRNO ();
1700 dbus_set_error (error, _dbus_error_from_errno (errno),
1701 "Failed to bind socket \"%s:%s\": %s",
1702 host ? host : "*", port, _dbus_strerror_from_errno ());
1707 if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1709 DBUS_SOCKET_SET_ERRNO ();
1710 dbus_set_error (error, _dbus_error_from_errno (errno),
1711 "Failed to listen on socket \"%s:%s\": %s",
1712 host ? host : "*", port, _dbus_strerror_from_errno ());
1717 newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1721 dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
1722 "Failed to allocate file handle array");
1725 listen_fd = newlisten_fd;
1726 listen_fd[nlisten_fd] = fd;
1729 if (!_dbus_string_get_length(retport))
1731 /* If the user didn't specify a port, or used 0, then
1732 the kernel chooses a port. After the first address
1733 is bound to, we need to force all remaining addresses
1734 to use the same port */
1735 if (!port || !strcmp(port, "0"))
1737 mysockaddr_gen addr;
1738 socklen_t addrlen = sizeof(addr);
1741 if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1743 DBUS_SOCKET_SET_ERRNO ();
1744 dbus_set_error (error, _dbus_error_from_errno (errno),
1745 "Failed to resolve port \"%s:%s\": %s",
1746 host ? host : "*", port, _dbus_strerror_from_errno());
1749 snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1750 if (!_dbus_string_append(retport, portbuf))
1752 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1756 /* Release current address list & redo lookup */
1757 port = _dbus_string_get_const_data(retport);
1759 goto redo_lookup_with_port;
1763 if (!_dbus_string_append(retport, port))
1765 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
1778 _dbus_win_set_errno (WSAEADDRINUSE);
1779 dbus_set_error (error, _dbus_error_from_errno (errno),
1780 "Failed to bind socket \"%s:%s\": %s",
1781 host ? host : "*", port, _dbus_strerror_from_errno ());
1785 sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1787 for (i = 0 ; i < nlisten_fd ; i++)
1789 _dbus_fd_set_close_on_exec (listen_fd[i]);
1790 if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1803 for (i = 0 ; i < nlisten_fd ; i++)
1804 closesocket (listen_fd[i]);
1805 dbus_free(listen_fd);
1811 * Accepts a connection on a listening socket.
1812 * Handles EINTR for you.
1814 * @param listen_fd the listen file descriptor
1815 * @returns the connection fd of the client, or -1 on error
1818 _dbus_accept (int listen_fd)
1823 client_fd = accept (listen_fd, NULL, NULL);
1825 if (DBUS_SOCKET_IS_INVALID (client_fd))
1827 DBUS_SOCKET_SET_ERRNO ();
1832 _dbus_verbose ("client fd %d accepted\n", client_fd);
1841 _dbus_send_credentials_socket (int handle,
1844 /* FIXME: for the session bus credentials shouldn't matter (?), but
1845 * for the system bus they are presumably essential. A rough outline
1846 * of a way to implement the credential transfer would be this:
1848 * client waits to *read* a byte.
1850 * server creates a named pipe with a random name, sends a byte
1851 * contining its length, and its name.
1853 * client reads the name, connects to it (using Win32 API).
1855 * server waits for connection to the named pipe, then calls
1856 * ImpersonateNamedPipeClient(), notes its now-current credentials,
1857 * calls RevertToSelf(), closes its handles to the named pipe, and
1858 * is done. (Maybe there is some other way to get the SID of a named
1859 * pipe client without having to use impersonation?)
1861 * client closes its handles and is done.
1863 * Ralf: Why not sending credentials over the given this connection ?
1864 * Using named pipes makes it impossible to be connected from a unix client.
1870 _dbus_string_init_const_len (&buf, "\0", 1);
1872 bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1874 if (bytes_written < 0 && errno == EINTR)
1877 if (bytes_written < 0)
1879 dbus_set_error (error, _dbus_error_from_errno (errno),
1880 "Failed to write credentials byte: %s",
1881 _dbus_strerror_from_errno ());
1884 else if (bytes_written == 0)
1886 dbus_set_error (error, DBUS_ERROR_IO_ERROR,
1887 "wrote zero bytes writing credentials byte");
1892 _dbus_assert (bytes_written == 1);
1893 _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1900 * Reads a single byte which must be nul (an error occurs otherwise),
1901 * and reads unix credentials if available. Fills in pid/uid/gid with
1902 * -1 if no credentials are available. Return value indicates whether
1903 * a byte was read, not whether we got valid credentials. On some
1904 * systems, such as Linux, reading/writing the byte isn't actually
1905 * required, but we do it anyway just to avoid multiple codepaths.
1907 * Fails if no byte is available, so you must select() first.
1909 * The point of the byte is that on some systems we have to
1910 * use sendmsg()/recvmsg() to transmit credentials.
1912 * @param handle the client file descriptor
1913 * @param credentials struct to fill with credentials of client
1914 * @param error location to store error code
1915 * @returns #TRUE on success
1918 _dbus_read_credentials_socket (int handle,
1919 DBusCredentials *credentials,
1929 // could fail due too OOM
1930 if (_dbus_string_init (&buf))
1932 bytes_read = _dbus_read_socket (handle, &buf, 1 );
1935 _dbus_verbose ("got one zero byte from server\n");
1937 _dbus_string_free (&buf);
1940 pid = _dbus_get_peer_pid_from_tcp_handle (handle);
1944 _dbus_credentials_add_pid (credentials, pid);
1946 if (_dbus_getsid (&sid, pid))
1948 if (!_dbus_credentials_add_windows_sid (credentials, sid))
1962 * Checks to make sure the given directory is
1963 * private to the user
1965 * @param dir the name of the directory
1966 * @param error error return
1967 * @returns #FALSE on failure
1970 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
1973 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1979 * Appends the given filename to the given directory.
1981 * @todo it might be cute to collapse multiple '/' such as "foo//"
1984 * @param dir the directory name
1985 * @param next_component the filename
1986 * @returns #TRUE on success
1989 _dbus_concat_dir_and_file (DBusString *dir,
1990 const DBusString *next_component)
1992 dbus_bool_t dir_ends_in_slash;
1993 dbus_bool_t file_starts_with_slash;
1995 if (_dbus_string_get_length (dir) == 0 ||
1996 _dbus_string_get_length (next_component) == 0)
2000 ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
2001 '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
2003 file_starts_with_slash =
2004 ('/' == _dbus_string_get_byte (next_component, 0) ||
2005 '\\' == _dbus_string_get_byte (next_component, 0));
2007 if (dir_ends_in_slash && file_starts_with_slash)
2009 _dbus_string_shorten (dir, 1);
2011 else if (!(dir_ends_in_slash || file_starts_with_slash))
2013 if (!_dbus_string_append_byte (dir, '\\'))
2017 return _dbus_string_copy (next_component, 0, dir,
2018 _dbus_string_get_length (dir));
2021 /*---------------- DBusCredentials ----------------------------------*/
2024 * Adds the credentials corresponding to the given username.
2026 * @param credentials credentials to fill in
2027 * @param username the username
2028 * @returns #TRUE if the username existed and we got some credentials
2031 _dbus_credentials_add_from_user (DBusCredentials *credentials,
2032 const DBusString *username)
2034 return _dbus_credentials_add_windows_sid (credentials,
2035 _dbus_string_get_const_data(username));
2039 * Adds the credentials of the current process to the
2040 * passed-in credentials object.
2042 * @param credentials credentials to add to
2043 * @returns #FALSE if no memory; does not properly roll back on failure, so only some credentials may have been added
2047 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
2049 dbus_bool_t retval = FALSE;
2052 if (!_dbus_getsid(&sid, _dbus_getpid()))
2055 if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2058 if (!_dbus_credentials_add_windows_sid (credentials,sid))
2073 * Append to the string the identity we would like to have when we
2074 * authenticate, on UNIX this is the current process UID and on
2075 * Windows something else, probably a Windows SID string. No escaping
2076 * is required, that is done in dbus-auth.c. The username here
2077 * need not be anything human-readable, it can be the machine-readable
2078 * form i.e. a user id.
2080 * @param str the string to append to
2081 * @returns #FALSE on no memory
2082 * @todo to which class belongs this
2085 _dbus_append_user_from_current_process (DBusString *str)
2087 dbus_bool_t retval = FALSE;
2090 if (!_dbus_getsid(&sid, _dbus_getpid()))
2093 retval = _dbus_string_append (str,sid);
2100 * Gets our process ID
2101 * @returns process ID
2106 return GetCurrentProcessId ();
2109 /** nanoseconds in a second */
2110 #define NANOSECONDS_PER_SECOND 1000000000
2111 /** microseconds in a second */
2112 #define MICROSECONDS_PER_SECOND 1000000
2113 /** milliseconds in a second */
2114 #define MILLISECONDS_PER_SECOND 1000
2115 /** nanoseconds in a millisecond */
2116 #define NANOSECONDS_PER_MILLISECOND 1000000
2117 /** microseconds in a millisecond */
2118 #define MICROSECONDS_PER_MILLISECOND 1000
2121 * Sleeps the given number of milliseconds.
2122 * @param milliseconds number of milliseconds
2125 _dbus_sleep_milliseconds (int milliseconds)
2127 Sleep (milliseconds);
2132 * Get current time, as in gettimeofday(). Never uses the monotonic
2135 * @param tv_sec return location for number of seconds
2136 * @param tv_usec return location for number of microseconds
2139 _dbus_get_real_time (long *tv_sec,
2143 dbus_uint64_t time64;
2145 GetSystemTimeAsFileTime (&ft);
2147 memcpy (&time64, &ft, sizeof (time64));
2149 /* Convert from 100s of nanoseconds since 1601-01-01
2150 * to Unix epoch. Yes, this is Y2038 unsafe.
2152 time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2156 *tv_sec = time64 / 1000000;
2159 *tv_usec = time64 % 1000000;
2163 * Get current time, as in gettimeofday(). Use the monotonic clock if
2164 * available, to avoid problems when the system time changes.
2166 * @param tv_sec return location for number of seconds
2167 * @param tv_usec return location for number of microseconds
2170 _dbus_get_monotonic_time (long *tv_sec,
2173 /* no implementation yet, fall back to wall-clock time */
2174 _dbus_get_real_time (tv_sec, tv_usec);
2178 * signal (SIGPIPE, SIG_IGN);
2181 _dbus_disable_sigpipe (void)
2186 * Creates a directory; succeeds if the directory
2187 * is created or already existed.
2189 * @param filename directory filename
2190 * @param error initialized error object
2191 * @returns #TRUE on success
2194 _dbus_create_directory (const DBusString *filename,
2197 const char *filename_c;
2199 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2201 filename_c = _dbus_string_get_const_data (filename);
2203 if (!CreateDirectoryA (filename_c, NULL))
2205 if (GetLastError () == ERROR_ALREADY_EXISTS)
2208 dbus_set_error (error, DBUS_ERROR_FAILED,
2209 "Failed to create directory %s: %s\n",
2210 filename_c, _dbus_strerror_from_errno ());
2219 * Generates the given number of random bytes,
2220 * using the best mechanism we can come up with.
2222 * @param str the string
2223 * @param n_bytes the number of random bytes to append to string
2224 * @returns #TRUE on success, #FALSE if no memory
2227 _dbus_generate_random_bytes (DBusString *str,
2234 old_len = _dbus_string_get_length (str);
2236 if (!_dbus_string_lengthen (str, n_bytes))
2239 p = _dbus_string_get_data_len (str, old_len, n_bytes);
2241 if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2244 if (!CryptGenRandom (hprov, n_bytes, p))
2246 CryptReleaseContext (hprov, 0);
2250 CryptReleaseContext (hprov, 0);
2256 * Gets the temporary files directory by inspecting the environment variables
2257 * TMPDIR, TMP, and TEMP in that order. If none of those are set "/tmp" is returned
2259 * @returns location of temp directory, or #NULL if no memory for locking
2262 _dbus_get_tmpdir(void)
2264 /* Protected by _DBUS_LOCK_sysdeps */
2265 static const char* tmpdir = NULL;
2266 static char buf[1000];
2268 if (!_DBUS_LOCK (sysdeps))
2275 if (!GetTempPathA (sizeof (buf), buf))
2277 _dbus_warn ("GetTempPath failed\n");
2281 /* Drop terminating backslash or slash */
2282 last_slash = _mbsrchr (buf, '\\');
2283 if (last_slash > buf && last_slash[1] == '\0')
2284 last_slash[0] = '\0';
2285 last_slash = _mbsrchr (buf, '/');
2286 if (last_slash > buf && last_slash[1] == '\0')
2287 last_slash[0] = '\0';
2292 _DBUS_UNLOCK (sysdeps);
2294 _dbus_assert(tmpdir != NULL);
2301 * Deletes the given file.
2303 * @param filename the filename
2304 * @param error error location
2306 * @returns #TRUE if unlink() succeeded
2309 _dbus_delete_file (const DBusString *filename,
2312 const char *filename_c;
2314 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2316 filename_c = _dbus_string_get_const_data (filename);
2318 if (DeleteFileA (filename_c) == 0)
2320 dbus_set_error (error, DBUS_ERROR_FAILED,
2321 "Failed to delete file %s: %s\n",
2322 filename_c, _dbus_strerror_from_errno ());
2330 * replaces the term DBUS_PREFIX in configure_time_path by the
2331 * current dbus installation directory. On unix this function is a noop
2333 * @param configure_time_path
2337 _dbus_replace_install_prefix (const char *configure_time_path)
2340 return configure_time_path;
2342 static char retval[1000];
2343 static char runtime_prefix[1000];
2347 if (!configure_time_path)
2350 if ((!_dbus_get_install_root(runtime_prefix, len) ||
2351 strncmp (configure_time_path, DBUS_PREFIX "/",
2352 strlen (DBUS_PREFIX) + 1))) {
2353 strcat (retval, configure_time_path);
2357 strcpy (retval, runtime_prefix);
2358 strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2360 /* Somehow, in some situations, backslashes get collapsed in the string.
2361 * Since windows C library accepts both forward and backslashes as
2362 * path separators, convert all backslashes to forward slashes.
2365 for(i = 0; retval[i] != '\0'; i++) {
2366 if(retval[i] == '\\')
2373 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2375 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2385 * Backtrace Generator
2387 * Copyright 2004 Eric Poech
2388 * Copyright 2004 Robert Shearman
2390 * This library is free software; you can redistribute it and/or
2391 * modify it under the terms of the GNU Lesser General Public
2392 * License as published by the Free Software Foundation; either
2393 * version 2.1 of the License, or (at your option) any later version.
2395 * This library is distributed in the hope that it will be useful,
2396 * but WITHOUT ANY WARRANTY; without even the implied warranty of
2397 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2398 * Lesser General Public License for more details.
2400 * You should have received a copy of the GNU Lesser General Public
2401 * License along with this library; if not, write to the Free Software
2402 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2406 #include <imagehlp.h>
2409 #define DPRINTF _dbus_warn
2417 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2419 //MAKE_FUNCPTR(StackWalk);
2420 //MAKE_FUNCPTR(SymGetModuleBase);
2421 //MAKE_FUNCPTR(SymFunctionTableAccess);
2422 //MAKE_FUNCPTR(SymInitialize);
2423 //MAKE_FUNCPTR(SymGetSymFromAddr);
2424 //MAKE_FUNCPTR(SymGetModuleInfo);
2425 static BOOL (WINAPI *pStackWalk)(
2429 LPSTACKFRAME StackFrame,
2430 PVOID ContextRecord,
2431 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2432 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2433 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2434 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2437 static DWORD64 (WINAPI *pSymGetModuleBase)(
2441 static PVOID (WINAPI *pSymFunctionTableAccess)(
2446 static DWORD (WINAPI *pSymGetModuleBase)(
2450 static PVOID (WINAPI *pSymFunctionTableAccess)(
2455 static BOOL (WINAPI *pSymInitialize)(
2457 PSTR UserSearchPath,
2460 static BOOL (WINAPI *pSymGetSymFromAddr)(
2463 PDWORD Displacement,
2464 PIMAGEHLP_SYMBOL Symbol
2466 static BOOL (WINAPI *pSymGetModuleInfo)(
2469 PIMAGEHLP_MODULE ModuleInfo
2471 static DWORD (WINAPI *pSymSetOptions)(
2476 static BOOL init_backtrace()
2478 HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2480 #define GETFUNC(x) \
2481 p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2489 // GETFUNC(StackWalk);
2490 // GETFUNC(SymGetModuleBase);
2491 // GETFUNC(SymFunctionTableAccess);
2492 // GETFUNC(SymInitialize);
2493 // GETFUNC(SymGetSymFromAddr);
2494 // GETFUNC(SymGetModuleInfo);
2498 pStackWalk = (BOOL (WINAPI *)(
2502 LPSTACKFRAME StackFrame,
2503 PVOID ContextRecord,
2504 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2505 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2506 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2507 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2508 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2510 pSymGetModuleBase=(DWORD64 (WINAPI *)(
2513 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2514 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2517 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2519 pSymGetModuleBase=(DWORD (WINAPI *)(
2522 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2523 pSymFunctionTableAccess=(PVOID (WINAPI *)(
2526 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2528 pSymInitialize = (BOOL (WINAPI *)(
2530 PSTR UserSearchPath,
2532 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2533 pSymGetSymFromAddr = (BOOL (WINAPI *)(
2536 PDWORD Displacement,
2537 PIMAGEHLP_SYMBOL Symbol
2538 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2539 pSymGetModuleInfo = (BOOL (WINAPI *)(
2542 PIMAGEHLP_MODULE ModuleInfo
2543 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2544 pSymSetOptions = (DWORD (WINAPI *)(
2546 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2549 pSymSetOptions(SYMOPT_UNDNAME);
2551 pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2556 static void dump_backtrace_for_thread(HANDLE hThread)
2563 if (!init_backtrace())
2566 /* can't use this function for current thread as GetThreadContext
2567 * doesn't support getting context from current thread */
2568 if (hThread == GetCurrentThread())
2571 DPRINTF("Backtrace:\n");
2573 _DBUS_ZERO(context);
2574 context.ContextFlags = CONTEXT_FULL;
2576 SuspendThread(hThread);
2578 if (!GetThreadContext(hThread, &context))
2580 DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2581 ResumeThread(hThread);
2588 sf.AddrFrame.Offset = context.Ebp;
2589 sf.AddrFrame.Mode = AddrModeFlat;
2590 sf.AddrPC.Offset = context.Eip;
2591 sf.AddrPC.Mode = AddrModeFlat;
2592 dwImageType = IMAGE_FILE_MACHINE_I386;
2594 dwImageType = IMAGE_FILE_MACHINE_AMD64;
2595 sf.AddrPC.Offset = context.Rip;
2596 sf.AddrPC.Mode = AddrModeFlat;
2597 sf.AddrFrame.Offset = context.Rsp;
2598 sf.AddrFrame.Mode = AddrModeFlat;
2599 sf.AddrStack.Offset = context.Rsp;
2600 sf.AddrStack.Mode = AddrModeFlat;
2602 dwImageType = IMAGE_FILE_MACHINE_IA64;
2603 sf.AddrPC.Offset = context.StIIP;
2604 sf.AddrPC.Mode = AddrModeFlat;
2605 sf.AddrFrame.Offset = context.IntSp;
2606 sf.AddrFrame.Mode = AddrModeFlat;
2607 sf.AddrBStore.Offset= context.RsBSP;
2608 sf.AddrBStore.Mode = AddrModeFlat;
2609 sf.AddrStack.Offset = context.IntSp;
2610 sf.AddrStack.Mode = AddrModeFlat;
2612 # error You need to fill in the STACKFRAME structure for your architecture
2615 while (pStackWalk(dwImageType, GetCurrentProcess(),
2616 hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2617 pSymGetModuleBase, NULL))
2620 IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2621 DWORD dwDisplacement;
2623 pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2624 pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2626 if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2627 &dwDisplacement, pSymbol))
2629 IMAGEHLP_MODULE ModuleInfo;
2630 ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2632 if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2634 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2636 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2637 sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2639 else if (dwDisplacement)
2640 DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2642 DPRINTF("4\t%s\n", pSymbol->Name);
2645 ResumeThread(hThread);
2648 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2650 dump_backtrace_for_thread((HANDLE)lpParameter);
2654 /* cannot get valid context from current thread, so we have to execute
2655 * backtrace from another thread */
2656 static void dump_backtrace()
2658 HANDLE hCurrentThread;
2661 DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2662 GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2663 hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2665 WaitForSingleObject(hThread, INFINITE);
2666 CloseHandle(hThread);
2667 CloseHandle(hCurrentThread);
2670 #endif /* asserts or tests enabled */
2673 void _dbus_print_backtrace(void)
2679 void _dbus_print_backtrace(void)
2681 _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2685 static dbus_uint32_t fromAscii(char ascii)
2687 if(ascii >= '0' && ascii <= '9')
2689 if(ascii >= 'A' && ascii <= 'F')
2690 return ascii - 'A' + 10;
2691 if(ascii >= 'a' && ascii <= 'f')
2692 return ascii - 'a' + 10;
2696 dbus_bool_t _dbus_read_local_machine_uuid (DBusGUID *machine_id,
2697 dbus_bool_t create_if_not_found,
2704 HW_PROFILE_INFOA info;
2705 char *lpc = &info.szHwProfileGuid[0];
2708 // the hw-profile guid lives long enough
2709 if(!GetCurrentHwProfileA(&info))
2711 dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2715 // Form: {12340001-4980-1920-6788-123456789012}
2718 u = ((fromAscii(lpc[0]) << 0) |
2719 (fromAscii(lpc[1]) << 4) |
2720 (fromAscii(lpc[2]) << 8) |
2721 (fromAscii(lpc[3]) << 12) |
2722 (fromAscii(lpc[4]) << 16) |
2723 (fromAscii(lpc[5]) << 20) |
2724 (fromAscii(lpc[6]) << 24) |
2725 (fromAscii(lpc[7]) << 28));
2726 machine_id->as_uint32s[0] = u;
2730 u = ((fromAscii(lpc[0]) << 0) |
2731 (fromAscii(lpc[1]) << 4) |
2732 (fromAscii(lpc[2]) << 8) |
2733 (fromAscii(lpc[3]) << 12) |
2734 (fromAscii(lpc[5]) << 16) |
2735 (fromAscii(lpc[6]) << 20) |
2736 (fromAscii(lpc[7]) << 24) |
2737 (fromAscii(lpc[8]) << 28));
2738 machine_id->as_uint32s[1] = u;
2742 u = ((fromAscii(lpc[0]) << 0) |
2743 (fromAscii(lpc[1]) << 4) |
2744 (fromAscii(lpc[2]) << 8) |
2745 (fromAscii(lpc[3]) << 12) |
2746 (fromAscii(lpc[5]) << 16) |
2747 (fromAscii(lpc[6]) << 20) |
2748 (fromAscii(lpc[7]) << 24) |
2749 (fromAscii(lpc[8]) << 28));
2750 machine_id->as_uint32s[2] = u;
2754 u = ((fromAscii(lpc[0]) << 0) |
2755 (fromAscii(lpc[1]) << 4) |
2756 (fromAscii(lpc[2]) << 8) |
2757 (fromAscii(lpc[3]) << 12) |
2758 (fromAscii(lpc[4]) << 16) |
2759 (fromAscii(lpc[5]) << 20) |
2760 (fromAscii(lpc[6]) << 24) |
2761 (fromAscii(lpc[7]) << 28));
2762 machine_id->as_uint32s[3] = u;
2768 HANDLE _dbus_global_lock (const char *mutexname)
2773 mutex = CreateMutexA( NULL, FALSE, mutexname );
2779 gotMutex = WaitForSingleObject( mutex, INFINITE );
2782 case WAIT_ABANDONED:
2783 ReleaseMutex (mutex);
2784 CloseHandle (mutex);
2795 void _dbus_global_unlock (HANDLE mutex)
2797 ReleaseMutex (mutex);
2798 CloseHandle (mutex);
2801 // for proper cleanup in dbus-daemon
2802 static HANDLE hDBusDaemonMutex = NULL;
2803 static HANDLE hDBusSharedMem = NULL;
2804 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2805 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2806 // sync _dbus_get_autolaunch_address
2807 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2808 // mutex to determine if dbus-daemon is already started (per user)
2809 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2810 // named shm for dbus adress info (per user)
2811 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2814 _dbus_get_install_root_as_hash(DBusString *out)
2816 DBusString install_path;
2818 char path[MAX_PATH*2];
2819 int path_size = sizeof(path);
2821 if (!_dbus_get_install_root(path,path_size))
2824 _dbus_string_init(&install_path);
2825 _dbus_string_append(&install_path,path);
2827 _dbus_string_init(out);
2828 _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2830 if (!_dbus_sha_compute (&install_path, out))
2837 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2839 _dbus_string_init(out);
2840 _dbus_string_append(out,basestring);
2846 else if (strcmp(scope,"*install-path") == 0
2847 // for 1.3 compatibility
2848 || strcmp(scope,"install-path") == 0)
2851 if (!_dbus_get_install_root_as_hash(&temp))
2853 _dbus_string_free(out);
2856 _dbus_string_append(out,"-");
2857 _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2858 _dbus_string_free(&temp);
2860 else if (strcmp(scope,"*user") == 0)
2862 _dbus_string_append(out,"-");
2863 if (!_dbus_append_user_from_current_process(out))
2865 _dbus_string_free(out);
2869 else if (strlen(scope) > 0)
2871 _dbus_string_append(out,"-");
2872 _dbus_string_append(out,scope);
2879 _dbus_get_shm_name (DBusString *out,const char *scope)
2881 return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2885 _dbus_get_mutex_name (DBusString *out,const char *scope)
2887 return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2891 _dbus_daemon_is_session_bus_address_published (const char *scope)
2894 DBusString mutex_name;
2896 if (!_dbus_get_mutex_name(&mutex_name,scope))
2898 _dbus_string_free( &mutex_name );
2902 if (hDBusDaemonMutex)
2905 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2906 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2908 // we use CreateMutex instead of OpenMutex because of possible race conditions,
2909 // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2910 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2912 /* The client uses mutex ownership to detect a running server, so the server should do so too.
2913 Fortunally the client deletes the mutex in the lock protected area, so checking presence
2916 _dbus_global_unlock( lock );
2918 _dbus_string_free( &mutex_name );
2920 if (hDBusDaemonMutex == NULL)
2922 if (GetLastError() == ERROR_ALREADY_EXISTS)
2924 CloseHandle(hDBusDaemonMutex);
2925 hDBusDaemonMutex = NULL;
2928 // mutex wasn't created before, so return false.
2929 // We leave the mutex name allocated for later reusage
2930 // in _dbus_daemon_publish_session_bus_address.
2935 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2938 char *shared_addr = NULL;
2939 DBusString shm_name;
2940 DBusString mutex_name;
2942 _dbus_assert (address);
2944 if (!_dbus_get_mutex_name(&mutex_name,scope))
2946 _dbus_string_free( &mutex_name );
2950 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2951 lock = _dbus_global_lock( cUniqueDBusInitMutex );
2953 if (!hDBusDaemonMutex)
2955 hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2957 _dbus_string_free( &mutex_name );
2959 // acquire the mutex
2960 if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2962 _dbus_global_unlock( lock );
2963 CloseHandle( hDBusDaemonMutex );
2967 if (!_dbus_get_shm_name(&shm_name,scope))
2969 _dbus_string_free( &shm_name );
2970 _dbus_global_unlock( lock );
2975 hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2976 0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2977 _dbus_assert( hDBusSharedMem );
2979 shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2981 _dbus_assert (shared_addr);
2983 strcpy( shared_addr, address);
2986 UnmapViewOfFile( shared_addr );
2988 _dbus_global_unlock( lock );
2989 _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2991 _dbus_string_free( &shm_name );
2996 _dbus_daemon_unpublish_session_bus_address (void)
3000 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3001 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3003 CloseHandle( hDBusSharedMem );
3005 hDBusSharedMem = NULL;
3007 ReleaseMutex( hDBusDaemonMutex );
3009 CloseHandle( hDBusDaemonMutex );
3011 hDBusDaemonMutex = NULL;
3013 _dbus_global_unlock( lock );
3017 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
3025 // we know that dbus-daemon is available, so we wait until shm is available
3026 sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
3027 if( sharedMem == 0 )
3029 if ( sharedMem != 0)
3033 if( sharedMem == 0 )
3036 shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
3041 _dbus_string_init( address );
3043 _dbus_string_append( address, shared_addr );
3046 UnmapViewOfFile( shared_addr );
3048 CloseHandle( sharedMem );
3054 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
3058 DBusString mutex_name;
3059 dbus_bool_t bRet = TRUE;
3061 if (!_dbus_get_mutex_name(&mutex_name,scope))
3063 _dbus_string_free( &mutex_name );
3067 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3068 lock = _dbus_global_lock( cUniqueDBusInitMutex );
3071 daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3072 if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3074 ReleaseMutex (daemon);
3075 CloseHandle (daemon);
3077 _dbus_global_unlock( lock );
3078 _dbus_string_free( &mutex_name );
3083 bRet = _dbus_get_autolaunch_shm( address, shm_name );
3086 CloseHandle ( daemon );
3088 _dbus_global_unlock( lock );
3089 _dbus_string_free( &mutex_name );
3095 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3100 PROCESS_INFORMATION pi;
3101 dbus_bool_t retval = FALSE;
3103 char dbus_exe_path[MAX_PATH];
3104 char dbus_args[MAX_PATH * 2];
3105 const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3106 DBusString shm_name;
3108 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3110 if (!_dbus_get_shm_name(&shm_name,scope))
3112 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3116 mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3118 if (_dbus_daemon_already_runs(address,&shm_name,scope))
3120 _dbus_verbose( "found running dbus daemon at %s\n",
3121 _dbus_string_get_const_data (&shm_name) );
3126 if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3128 // Look in directory containing dbus shared library
3130 char dbus_module_path[MAX_PATH];
3133 _dbus_verbose( "did not found dbus daemon executable on default search path, "
3134 "trying path where dbus shared library is located");
3136 hmod = _dbus_win_get_dll_hmodule();
3137 rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3140 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3146 char *ext_idx = strrchr(dbus_module_path, '\\');
3149 if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3151 dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3153 printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3154 printf ("or start the daemon manually\n\n");
3157 _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3163 ZeroMemory( &si, sizeof(si) );
3165 ZeroMemory( &pi, sizeof(pi) );
3167 _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3169 // argv[i] = "--config-file=bus\\session.conf";
3170 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3171 if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3173 CloseHandle (pi.hThread);
3174 CloseHandle (pi.hProcess);
3175 retval = _dbus_get_autolaunch_shm( address, &shm_name );
3176 if (retval == FALSE)
3177 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3181 dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3187 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3189 _DBUS_ASSERT_ERROR_IS_SET (error);
3191 _dbus_global_unlock (mutex);
3197 /** Makes the file readable by every user in the system.
3199 * @param filename the filename
3200 * @param error error location
3201 * @returns #TRUE if the file's permissions could be changed.
3204 _dbus_make_file_world_readable(const DBusString *filename,
3212 * return the relocated DATADIR
3214 * @returns relocated DATADIR static string
3218 _dbus_windows_get_datadir (void)
3220 return _dbus_replace_install_prefix(DBUS_DATADIR);
3224 #define DBUS_DATADIR _dbus_windows_get_datadir ()
3227 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
3228 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
3231 * Returns the standard directories for a session bus to look for service
3234 * On Windows this should be data directories:
3236 * %CommonProgramFiles%/dbus
3240 * relocated DBUS_DATADIR
3242 * @param dirs the directory list we are returning
3243 * @returns #FALSE on OOM
3247 _dbus_get_standard_session_servicedirs (DBusList **dirs)
3249 const char *common_progs;
3250 DBusString servicedir_path;
3252 if (!_dbus_string_init (&servicedir_path))
3257 /* On Windows CE, we adjust datadir dynamically to installation location. */
3258 const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
3260 if (data_dir != NULL)
3262 if (!_dbus_string_append (&servicedir_path, data_dir))
3265 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3271 the code for accessing services requires absolute base pathes
3272 in case DBUS_DATADIR is relative make it absolute
3278 _dbus_string_init_const (&p, DBUS_DATADIR);
3280 if (!_dbus_path_is_absolute (&p))
3282 char install_root[1000];
3283 if (_dbus_get_install_root (install_root, sizeof(install_root)))
3284 if (!_dbus_string_append (&servicedir_path, install_root))
3289 if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3292 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3296 common_progs = _dbus_getenv ("CommonProgramFiles");
3298 if (common_progs != NULL)
3300 if (!_dbus_string_append (&servicedir_path, common_progs))
3303 if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3307 if (!_dbus_split_paths_and_append (&servicedir_path,
3308 DBUS_STANDARD_SESSION_SERVICEDIR,
3312 _dbus_string_free (&servicedir_path);
3316 _dbus_string_free (&servicedir_path);
3321 * Returns the standard directories for a system bus to look for service
3324 * On UNIX this should be the standard xdg freedesktop.org data directories:
3326 * XDG_DATA_DIRS=${XDG_DATA_DIRS-/usr/local/share:/usr/share}
3332 * On Windows there is no system bus and this function can return nothing.
3334 * @param dirs the directory list we are returning
3335 * @returns #FALSE on OOM
3339 _dbus_get_standard_system_servicedirs (DBusList **dirs)
3346 * Atomically increments an integer
3348 * @param atomic pointer to the integer to increment
3349 * @returns the value before incrementing
3353 _dbus_atomic_inc (DBusAtomic *atomic)
3355 // +/- 1 is needed here!
3356 // no volatile argument with mingw
3357 return InterlockedIncrement (&atomic->value) - 1;
3361 * Atomically decrement an integer
3363 * @param atomic pointer to the integer to decrement
3364 * @returns the value before decrementing
3368 _dbus_atomic_dec (DBusAtomic *atomic)
3370 // +/- 1 is needed here!
3371 // no volatile argument with mingw
3372 return InterlockedDecrement (&atomic->value) + 1;
3376 * Atomically get the value of an integer. It may change at any time
3377 * thereafter, so this is mostly only useful for assertions.
3379 * @param atomic pointer to the integer to get
3380 * @returns the value at this moment
3383 _dbus_atomic_get (DBusAtomic *atomic)
3385 /* In this situation, GLib issues a MemoryBarrier() and then returns
3386 * atomic->value. However, mingw from mingw.org (not to be confused with
3387 * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3388 * headers, so we have to get a memory barrier some other way.
3390 * InterlockedIncrement is older, and is documented on MSDN to be a full
3391 * memory barrier, so let's use that.
3395 InterlockedExchange (&dummy, 1);
3397 return atomic->value;
3401 * Called when the bus daemon is signaled to reload its configuration; any
3402 * caches should be nuked. Of course any caches that need explicit reload
3403 * are probably broken, but c'est la vie.
3408 _dbus_flush_caches (void)
3413 * See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently
3414 * for Winsock so is abstracted)
3416 * @returns #TRUE if errno == EAGAIN or errno == EWOULDBLOCK
3419 _dbus_get_is_errno_eagain_or_ewouldblock (void)
3421 return errno == WSAEWOULDBLOCK;
3425 * return the absolute path of the dbus installation
3427 * @param prefix buffer for installation path
3428 * @param len length of buffer
3429 * @returns #FALSE on failure
3432 _dbus_get_install_root(char *prefix, int len)
3434 //To find the prefix, we cut the filename and also \bin\ if present
3438 pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3439 if ( pathLength == 0 || GetLastError() != 0 ) {
3443 lastSlash = _mbsrchr(prefix, '\\');
3444 if (lastSlash == NULL) {
3448 //cut off binary name
3451 //cut possible "\\bin"
3453 //this fails if we are in a double-byte system codepage and the
3454 //folder's name happens to end with the *bytes*
3455 //"\\bin"... (I.e. the second byte of some Han character and then
3456 //the Latin "bin", but that is not likely I think...
3457 if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3459 else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3461 else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3468 find config file either from installation or build root according to
3469 the following path layout
3471 bin/dbus-daemon[d].exe
3472 etc/<config-file>.conf *or* etc/dbus-1/<config-file>.conf
3473 (the former above is what dbus4win uses, the latter above is
3474 what a "normal" Unix-style "make install" uses)
3477 bin/dbus-daemon[d].exe
3478 bus/<config-file>.conf
3481 _dbus_get_config_file_name(DBusString *config_file, char *s)
3483 char path[MAX_PATH*2];
3484 int path_size = sizeof(path);
3486 if (!_dbus_get_install_root(path,path_size))
3489 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3491 strcat(path,"etc\\");
3493 if (_dbus_file_exists(path))
3495 // find path from executable
3496 if (!_dbus_string_append (config_file, path))
3501 if (!_dbus_get_install_root(path,path_size))
3503 if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3505 strcat(path,"etc\\dbus-1\\");
3508 if (_dbus_file_exists(path))
3510 if (!_dbus_string_append (config_file, path))
3515 if (!_dbus_get_install_root(path,path_size))
3517 if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3519 strcat(path,"bus\\");
3522 if (_dbus_file_exists(path))
3524 if (!_dbus_string_append (config_file, path))
3533 * Append the absolute path of the system.conf file
3534 * (there is no system bus on Windows so this can just
3535 * return FALSE and print a warning or something)
3537 * @param str the string to append to
3538 * @returns #FALSE if no memory
3541 _dbus_append_system_config_file (DBusString *str)
3543 return _dbus_get_config_file_name(str, "system.conf");
3547 * Append the absolute path of the session.conf file.
3549 * @param str the string to append to
3550 * @returns #FALSE if no memory
3553 _dbus_append_session_config_file (DBusString *str)
3555 return _dbus_get_config_file_name(str, "session.conf");
3558 /* See comment in dbus-sysdeps-unix.c */
3560 _dbus_lookup_session_address (dbus_bool_t *supported,
3561 DBusString *address,
3564 /* Probably fill this in with something based on COM? */
3570 * Appends the directory in which a keyring for the given credentials
3571 * should be stored. The credentials should have either a Windows or
3572 * UNIX user in them. The directory should be an absolute path.
3574 * On UNIX the directory is ~/.dbus-keyrings while on Windows it should probably
3575 * be something else, since the dotfile convention is not normal on Windows.
3577 * @param directory string to append directory to
3578 * @param credentials credentials the directory should be for
3580 * @returns #FALSE on no memory
3583 _dbus_append_keyring_directory_for_credentials (DBusString *directory,
3584 DBusCredentials *credentials)
3588 const char *homepath;
3589 const char *homedrive;
3591 _dbus_assert (credentials != NULL);
3592 _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
3594 if (!_dbus_string_init (&homedir))
3597 homedrive = _dbus_getenv("HOMEDRIVE");
3598 if (homedrive != NULL && *homedrive != '\0')
3600 _dbus_string_append(&homedir,homedrive);
3603 homepath = _dbus_getenv("HOMEPATH");
3604 if (homepath != NULL && *homepath != '\0')
3606 _dbus_string_append(&homedir,homepath);
3609 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3611 const char *override;
3613 override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3614 if (override != NULL && *override != '\0')
3616 _dbus_string_set_length (&homedir, 0);
3617 if (!_dbus_string_append (&homedir, override))
3620 _dbus_verbose ("Using fake homedir for testing: %s\n",
3621 _dbus_string_get_const_data (&homedir));
3625 static dbus_bool_t already_warned = FALSE;
3626 if (!already_warned)
3628 _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3629 already_warned = TRUE;
3636 /* It's not possible to create a .something directory in Windows CE
3637 using the file explorer. */
3638 #define KEYRING_DIR "dbus-keyrings"
3640 #define KEYRING_DIR ".dbus-keyrings"
3643 _dbus_string_init_const (&dotdir, KEYRING_DIR);
3644 if (!_dbus_concat_dir_and_file (&homedir,
3648 if (!_dbus_string_copy (&homedir, 0,
3649 directory, _dbus_string_get_length (directory))) {
3653 _dbus_string_free (&homedir);
3657 _dbus_string_free (&homedir);
3661 /** Checks if a file exists
3663 * @param file full path to the file
3664 * @returns #TRUE if file exists
3667 _dbus_file_exists (const char *file)
3669 DWORD attributes = GetFileAttributesA (file);
3671 if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3678 * A wrapper around strerror() because some platforms
3679 * may be lame and not have strerror().
3681 * @param error_number errno.
3682 * @returns error description.
3685 _dbus_strerror (int error_number)
3693 switch (error_number)
3696 return "Interrupted function call";
3698 return "Permission denied";
3700 return "Bad address";
3702 return "Invalid argument";
3704 return "Too many open files";
3705 case WSAEWOULDBLOCK:
3706 return "Resource temporarily unavailable";
3707 case WSAEINPROGRESS:
3708 return "Operation now in progress";
3710 return "Operation already in progress";
3712 return "Socket operation on nonsocket";
3713 case WSAEDESTADDRREQ:
3714 return "Destination address required";
3716 return "Message too long";
3718 return "Protocol wrong type for socket";
3719 case WSAENOPROTOOPT:
3720 return "Bad protocol option";
3721 case WSAEPROTONOSUPPORT:
3722 return "Protocol not supported";
3723 case WSAESOCKTNOSUPPORT:
3724 return "Socket type not supported";
3726 return "Operation not supported";
3727 case WSAEPFNOSUPPORT:
3728 return "Protocol family not supported";
3729 case WSAEAFNOSUPPORT:
3730 return "Address family not supported by protocol family";
3732 return "Address already in use";
3733 case WSAEADDRNOTAVAIL:
3734 return "Cannot assign requested address";
3736 return "Network is down";
3737 case WSAENETUNREACH:
3738 return "Network is unreachable";
3740 return "Network dropped connection on reset";
3741 case WSAECONNABORTED:
3742 return "Software caused connection abort";
3744 return "Connection reset by peer";
3746 return "No buffer space available";
3748 return "Socket is already connected";
3750 return "Socket is not connected";
3752 return "Cannot send after socket shutdown";
3754 return "Connection timed out";
3755 case WSAECONNREFUSED:
3756 return "Connection refused";
3758 return "Host is down";
3759 case WSAEHOSTUNREACH:
3760 return "No route to host";
3762 return "Too many processes";
3764 return "Graceful shutdown in progress";
3765 case WSATYPE_NOT_FOUND:
3766 return "Class type not found";
3767 case WSAHOST_NOT_FOUND:
3768 return "Host not found";
3770 return "Nonauthoritative host not found";
3771 case WSANO_RECOVERY:
3772 return "This is a nonrecoverable error";
3774 return "Valid name, no data record of requested type";
3775 case WSA_INVALID_HANDLE:
3776 return "Specified event object handle is invalid";
3777 case WSA_INVALID_PARAMETER:
3778 return "One or more parameters are invalid";
3779 case WSA_IO_INCOMPLETE:
3780 return "Overlapped I/O event object not in signaled state";
3781 case WSA_IO_PENDING:
3782 return "Overlapped operations will complete later";
3783 case WSA_NOT_ENOUGH_MEMORY:
3784 return "Insufficient memory available";
3785 case WSA_OPERATION_ABORTED:
3786 return "Overlapped operation aborted";
3787 #ifdef WSAINVALIDPROCTABLE
3789 case WSAINVALIDPROCTABLE:
3790 return "Invalid procedure table from service provider";
3792 #ifdef WSAINVALIDPROVIDER
3794 case WSAINVALIDPROVIDER:
3795 return "Invalid service provider version number";
3797 #ifdef WSAPROVIDERFAILEDINIT
3799 case WSAPROVIDERFAILEDINIT:
3800 return "Unable to initialize a service provider";
3803 case WSASYSCALLFAILURE:
3804 return "System call failure";
3806 msg = strerror (error_number);
3815 * Assigns an error name and message corresponding to a Win32 error
3816 * code to a DBusError. Does nothing if error is #NULL.
3818 * @param error the error.
3819 * @param code the Win32 error code
3822 _dbus_win_set_error_from_win_error (DBusError *error,
3827 /* As we want the English message, use the A API */
3828 FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3829 FORMAT_MESSAGE_IGNORE_INSERTS |
3830 FORMAT_MESSAGE_FROM_SYSTEM,
3831 NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3832 (LPSTR) &msg, 0, NULL);
3837 msg_copy = dbus_malloc (strlen (msg));
3838 strcpy (msg_copy, msg);
3841 dbus_set_error (error, "win32.error", "%s", msg_copy);
3844 dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3848 _dbus_win_warn_win_error (const char *message,
3853 dbus_error_init (&error);
3854 _dbus_win_set_error_from_win_error (&error, code);
3855 _dbus_warn ("%s: %s\n", message, error.message);
3856 dbus_error_free (&error);
3860 * Removes a directory; Directory must be empty
3862 * @param filename directory filename
3863 * @param error initialized error object
3864 * @returns #TRUE on success
3867 _dbus_delete_directory (const DBusString *filename,
3870 const char *filename_c;
3872 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3874 filename_c = _dbus_string_get_const_data (filename);
3876 if (RemoveDirectoryA (filename_c) == 0)
3878 char *emsg = _dbus_win_error_string (GetLastError ());
3879 dbus_set_error (error, _dbus_win_error_from_last_error (),
3880 "Failed to remove directory %s: %s",
3882 _dbus_win_free_error_string (emsg);
3890 * Checks whether the filename is an absolute path
3892 * @param filename the filename
3893 * @returns #TRUE if an absolute path
3896 _dbus_path_is_absolute (const DBusString *filename)
3898 if (_dbus_string_get_length (filename) > 0)
3899 return _dbus_string_get_byte (filename, 1) == ':'
3900 || _dbus_string_get_byte (filename, 0) == '\\'
3901 || _dbus_string_get_byte (filename, 0) == '/';
3907 _dbus_check_setuid (void)
3912 /** @} end of sysdeps-win */
3913 /* tests in dbus-sysdeps-util.c */