D-Bus  1.11.2
dbus-sysdeps-win.c
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)
3  *
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>
10  *
11  * Licensed under the Academic Free License version 2.1
12  *
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.
17  *
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.
22  *
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
26  *
27  */
28 
29 #include <config.h>
30 
31 #define STRSAFE_NO_DEPRECATE
32 
33 #ifndef DBUS_WINCE
34 #ifndef _WIN32_WINNT
35 #define _WIN32_WINNT 0x0501
36 #endif
37 #endif
38 
39 #include "dbus-internals.h"
40 #include "dbus-sha.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"
53 
54 #include <windows.h>
55 #include <wincrypt.h>
56 #include <iphlpapi.h>
57 
58 /* Declarations missing in mingw's and windows sdk 7.0 headers */
59 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR StringSid, PSID *Sid);
60 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
61 
62 #include <stdio.h>
63 #include <stdlib.h>
64 
65 #include <string.h>
66 #if HAVE_ERRNO_H
67 #include <errno.h>
68 #endif
69 #ifndef DBUS_WINCE
70 #include <mbstring.h>
71 #include <sys/stat.h>
72 #include <sys/types.h>
73 #endif
74 
75 #ifdef HAVE_WS2TCPIP_H
76 /* getaddrinfo for Windows CE (and Windows). */
77 #include <ws2tcpip.h>
78 #endif
79 
80 #ifndef O_BINARY
81 #define O_BINARY 0
82 #endif
83 
84 #ifndef PROCESS_QUERY_LIMITED_INFORMATION
85 /* MinGW32 < 4 does not define this value in its headers */
86 #define PROCESS_QUERY_LIMITED_INFORMATION (0x1000)
87 #endif
88 
89 typedef int socklen_t;
90 
91 
92 void
93 _dbus_win_set_errno (int err)
94 {
95 #ifdef DBUS_WINCE
96  SetLastError (err);
97 #else
98  errno = err;
99 #endif
100 }
101 
102 static BOOL is_winxp_sp3_or_lower();
103 
104 /*
105  * _MIB_TCPROW_EX and friends are not available in system headers
106  * and are mapped to attribute identical ...OWNER_PID typedefs.
107  */
108 typedef MIB_TCPROW_OWNER_PID _MIB_TCPROW_EX;
109 typedef MIB_TCPTABLE_OWNER_PID MIB_TCPTABLE_EX;
110 typedef PMIB_TCPTABLE_OWNER_PID PMIB_TCPTABLE_EX;
111 typedef DWORD (WINAPI *ProcAllocateAndGetTcpExtTableFromStack)(PMIB_TCPTABLE_EX*,BOOL,HANDLE,DWORD,DWORD);
112 static ProcAllocateAndGetTcpExtTableFromStack lpfnAllocateAndGetTcpExTableFromStack = NULL;
113 
119 static BOOL
120 load_ex_ip_helper_procedures(void)
121 {
122  HMODULE hModule = LoadLibrary ("iphlpapi.dll");
123  if (hModule == NULL)
124  {
125  _dbus_verbose ("could not load iphlpapi.dll\n");
126  return FALSE;
127  }
128 
129  lpfnAllocateAndGetTcpExTableFromStack = (ProcAllocateAndGetTcpExtTableFromStack)GetProcAddress (hModule, "AllocateAndGetTcpExTableFromStack");
130  if (lpfnAllocateAndGetTcpExTableFromStack == NULL)
131  {
132  _dbus_verbose ("could not find function AllocateAndGetTcpExTableFromStack in iphlpapi.dll\n");
133  return FALSE;
134  }
135  return TRUE;
136 }
137 
144 static dbus_pid_t
145 get_pid_from_extended_tcp_table(int peer_port)
146 {
147  dbus_pid_t result;
148  DWORD errorCode, size = 0, i;
149  MIB_TCPTABLE_OWNER_PID *tcp_table;
150 
151  if ((errorCode =
152  GetExtendedTcpTable (NULL, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) == ERROR_INSUFFICIENT_BUFFER)
153  {
154  tcp_table = (MIB_TCPTABLE_OWNER_PID *) dbus_malloc (size);
155  if (tcp_table == NULL)
156  {
157  _dbus_verbose ("Error allocating memory\n");
158  return 0;
159  }
160  }
161  else
162  {
163  _dbus_win_warn_win_error ("unexpected error returned from GetExtendedTcpTable", errorCode);
164  return 0;
165  }
166 
167  if ((errorCode = GetExtendedTcpTable (tcp_table, &size, TRUE, AF_INET, TCP_TABLE_OWNER_PID_ALL, 0)) != NO_ERROR)
168  {
169  _dbus_verbose ("Error fetching tcp table %d\n", (int)errorCode);
170  dbus_free (tcp_table);
171  return 0;
172  }
173 
174  result = 0;
175  for (i = 0; i < tcp_table->dwNumEntries; i++)
176  {
177  MIB_TCPROW_OWNER_PID *p = &tcp_table->table[i];
178  int local_address = ntohl (p->dwLocalAddr);
179  int local_port = ntohs (p->dwLocalPort);
180  if (p->dwState == MIB_TCP_STATE_ESTAB
181  && local_address == INADDR_LOOPBACK && local_port == peer_port)
182  result = p->dwOwningPid;
183  }
184 
185  dbus_free (tcp_table);
186  _dbus_verbose ("got pid %lu\n", result);
187  return result;
188 }
189 
197 static dbus_pid_t
198 get_pid_from_tcp_ex_table(int peer_port)
199 {
200  dbus_pid_t result;
201  DWORD errorCode, i;
202  PMIB_TCPTABLE_EX tcp_table = NULL;
203 
204  if (!load_ex_ip_helper_procedures ())
205  {
206  _dbus_verbose
207  ("Error not been able to load iphelper procedures\n");
208  return 0;
209  }
210 
211  errorCode = lpfnAllocateAndGetTcpExTableFromStack (&tcp_table, TRUE, GetProcessHeap(), 0, 2);
212 
213  if (errorCode != NO_ERROR)
214  {
215  _dbus_verbose
216  ("Error not been able to call AllocateAndGetTcpExTableFromStack()\n");
217  return 0;
218  }
219 
220  result = 0;
221  for (i = 0; i < tcp_table->dwNumEntries; i++)
222  {
223  _MIB_TCPROW_EX *p = &tcp_table->table[i];
224  int local_port = ntohs (p->dwLocalPort);
225  int local_address = ntohl (p->dwLocalAddr);
226  if (local_address == INADDR_LOOPBACK && local_port == peer_port)
227  {
228  result = p->dwOwningPid;
229  break;
230  }
231  }
232 
233  HeapFree (GetProcessHeap(), 0, tcp_table);
234  _dbus_verbose ("got pid %lu\n", result);
235  return result;
236 }
237 
243 static dbus_pid_t
244 _dbus_get_peer_pid_from_tcp_handle (int handle)
245 {
246  struct sockaddr_storage addr;
247  socklen_t len = sizeof (addr);
248  int peer_port;
249 
250  dbus_pid_t result;
251  dbus_bool_t is_localhost = FALSE;
252 
253  getpeername (handle, (struct sockaddr *) &addr, &len);
254 
255  if (addr.ss_family == AF_INET)
256  {
257  struct sockaddr_in *s = (struct sockaddr_in *) &addr;
258  peer_port = ntohs (s->sin_port);
259  is_localhost = (ntohl (s->sin_addr.s_addr) == INADDR_LOOPBACK);
260  }
261  else if (addr.ss_family == AF_INET6)
262  {
263  _dbus_verbose ("FIXME [61922]: IPV6 support not working on windows\n");
264  return 0;
265  /*
266  struct sockaddr_in6 *s = (struct sockaddr_in6 * )&addr;
267  peer_port = ntohs (s->sin6_port);
268  is_localhost = (memcmp(s->sin6_addr.s6_addr, in6addr_loopback.s6_addr, 16) == 0);
269  _dbus_verbose ("IPV6 %08x %08x\n", s->sin6_addr.s6_addr, in6addr_loopback.s6_addr);
270  */
271  }
272  else
273  {
274  _dbus_verbose ("no idea what address family %d is\n", addr.ss_family);
275  return 0;
276  }
277 
278  if (!is_localhost)
279  {
280  _dbus_verbose ("could not fetch process id from remote process\n");
281  return 0;
282  }
283 
284  if (peer_port == 0)
285  {
286  _dbus_verbose
287  ("Error not been able to fetch tcp peer port from connection\n");
288  return 0;
289  }
290 
291  _dbus_verbose ("trying to get peer's pid\n");
292 
293  result = get_pid_from_extended_tcp_table (peer_port);
294  if (result > 0)
295  return result;
296  result = get_pid_from_tcp_ex_table (peer_port);
297  return result;
298 }
299 
300 /* Convert GetLastError() to a dbus error. */
301 const char*
302 _dbus_win_error_from_last_error (void)
303 {
304  switch (GetLastError())
305  {
306  case 0:
307  return DBUS_ERROR_FAILED;
308 
309  case ERROR_NO_MORE_FILES:
310  case ERROR_TOO_MANY_OPEN_FILES:
311  return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
312 
313  case ERROR_ACCESS_DENIED:
314  case ERROR_CANNOT_MAKE:
316 
317  case ERROR_NOT_ENOUGH_MEMORY:
318  return DBUS_ERROR_NO_MEMORY;
319 
320  case ERROR_FILE_EXISTS:
321  return DBUS_ERROR_FILE_EXISTS;
322 
323  case ERROR_FILE_NOT_FOUND:
324  case ERROR_PATH_NOT_FOUND:
326  }
327 
328  return DBUS_ERROR_FAILED;
329 }
330 
331 
332 char*
333 _dbus_win_error_string (int error_number)
334 {
335  char *msg;
336 
337  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
338  FORMAT_MESSAGE_IGNORE_INSERTS |
339  FORMAT_MESSAGE_FROM_SYSTEM,
340  NULL, error_number, 0,
341  (LPSTR) &msg, 0, NULL);
342 
343  if (msg[strlen (msg) - 1] == '\n')
344  msg[strlen (msg) - 1] = '\0';
345  if (msg[strlen (msg) - 1] == '\r')
346  msg[strlen (msg) - 1] = '\0';
347 
348  return msg;
349 }
350 
351 void
352 _dbus_win_free_error_string (char *string)
353 {
354  LocalFree (string);
355 }
356 
377 int
379  DBusString *buffer,
380  int count)
381 {
382  int bytes_read;
383  int start;
384  char *data;
385 
386  _dbus_assert (count >= 0);
387 
388  start = _dbus_string_get_length (buffer);
389 
390  if (!_dbus_string_lengthen (buffer, count))
391  {
392  _dbus_win_set_errno (ENOMEM);
393  return -1;
394  }
395 
396  data = _dbus_string_get_data_len (buffer, start, count);
397 
398  again:
399 
400  _dbus_verbose ("recv: count=%d fd=%Iu\n", count, fd.sock);
401  bytes_read = recv (fd.sock, data, count, 0);
402 
403  if (bytes_read == SOCKET_ERROR)
404  {
405  DBUS_SOCKET_SET_ERRNO();
406  _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
407  bytes_read = -1;
408  }
409  else
410  _dbus_verbose ("recv: = %d\n", bytes_read);
411 
412  if (bytes_read < 0)
413  {
414  if (errno == EINTR)
415  goto again;
416  else
417  {
418  /* put length back (note that this doesn't actually realloc anything) */
419  _dbus_string_set_length (buffer, start);
420  return -1;
421  }
422  }
423  else
424  {
425  /* put length back (doesn't actually realloc) */
426  _dbus_string_set_length (buffer, start + bytes_read);
427 
428 #if 0
429  if (bytes_read > 0)
430  _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
431 #endif
432 
433  return bytes_read;
434  }
435 }
436 
447 int
449  const DBusString *buffer,
450  int start,
451  int len)
452 {
453  const char *data;
454  int bytes_written;
455 
456  data = _dbus_string_get_const_data_len (buffer, start, len);
457 
458  again:
459 
460  _dbus_verbose ("send: len=%d fd=%Iu\n", len, fd.sock);
461  bytes_written = send (fd.sock, data, len, 0);
462 
463  if (bytes_written == SOCKET_ERROR)
464  {
465  DBUS_SOCKET_SET_ERRNO();
466  _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
467  bytes_written = -1;
468  }
469  else
470  _dbus_verbose ("send: = %d\n", bytes_written);
471 
472  if (bytes_written < 0 && errno == EINTR)
473  goto again;
474 
475 #if 0
476  if (bytes_written > 0)
477  _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
478 #endif
479 
480  return bytes_written;
481 }
482 
483 
493  DBusError *error)
494 {
495  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
496 
497  again:
498  if (closesocket (fd.sock) == SOCKET_ERROR)
499  {
500  DBUS_SOCKET_SET_ERRNO ();
501 
502  if (errno == EINTR)
503  goto again;
504 
505  dbus_set_error (error, _dbus_error_from_errno (errno),
506  "Could not close socket: socket=%Iu, , %s",
507  fd.sock, _dbus_strerror_from_errno ());
508  return FALSE;
509  }
510  _dbus_verbose ("_dbus_close_socket: socket=%Iu, \n", fd.sock);
511 
512  return TRUE;
513 }
514 
522 static void
523 _dbus_win_handle_set_close_on_exec (HANDLE handle)
524 {
525  if ( !SetHandleInformation( (HANDLE) handle,
526  HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
527  0 /*disable both flags*/ ) )
528  {
529  _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
530  }
531 }
532 
542  DBusError *error)
543 {
544  u_long one = 1;
545 
546  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
547 
548  if (ioctlsocket (handle.sock, FIONBIO, &one) == SOCKET_ERROR)
549  {
550  DBUS_SOCKET_SET_ERRNO ();
551  dbus_set_error (error, _dbus_error_from_errno (errno),
552  "Failed to set socket %Iu to nonblocking: %s",
553  handle.sock, _dbus_strerror_from_errno ());
554  return FALSE;
555  }
556 
557  return TRUE;
558 }
559 
560 
581 int
583  const DBusString *buffer1,
584  int start1,
585  int len1,
586  const DBusString *buffer2,
587  int start2,
588  int len2)
589 {
590  WSABUF vectors[2];
591  const char *data1;
592  const char *data2;
593  int rc;
594  DWORD bytes_written;
595 
596  _dbus_assert (buffer1 != NULL);
597  _dbus_assert (start1 >= 0);
598  _dbus_assert (start2 >= 0);
599  _dbus_assert (len1 >= 0);
600  _dbus_assert (len2 >= 0);
601 
602 
603  data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
604 
605  if (buffer2 != NULL)
606  data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
607  else
608  {
609  data2 = NULL;
610  start2 = 0;
611  len2 = 0;
612  }
613 
614  vectors[0].buf = (char*) data1;
615  vectors[0].len = len1;
616  vectors[1].buf = (char*) data2;
617  vectors[1].len = len2;
618 
619  again:
620 
621  _dbus_verbose ("WSASend: len1+2=%d+%d fd=%Iu\n", len1, len2, fd.sock);
622  rc = WSASend (fd.sock,
623  vectors,
624  data2 ? 2 : 1,
625  &bytes_written,
626  0,
627  NULL,
628  NULL);
629 
630  if (rc == SOCKET_ERROR)
631  {
632  DBUS_SOCKET_SET_ERRNO ();
633  _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
634  bytes_written = -1;
635  }
636  else
637  _dbus_verbose ("WSASend: = %ld\n", bytes_written);
638 
639  if (bytes_written < 0 && errno == EINTR)
640  goto again;
641 
642  return bytes_written;
643 }
644 
645 #if 0
646 
655 int
656 _dbus_connect_named_pipe (const char *path,
657  DBusError *error)
658 {
659  _dbus_assert_not_reached ("not implemented");
660 }
661 
662 #endif
663 
668 _dbus_win_startup_winsock (void)
669 {
670  /* Straight from MSDN, deuglified */
671 
672  /* Protected by _DBUS_LOCK_sysdeps */
673  static dbus_bool_t beenhere = FALSE;
674 
675  WORD wVersionRequested;
676  WSADATA wsaData;
677  int err;
678 
679  if (!_DBUS_LOCK (sysdeps))
680  return FALSE;
681 
682  if (beenhere)
683  goto out;
684 
685  wVersionRequested = MAKEWORD (2, 0);
686 
687  err = WSAStartup (wVersionRequested, &wsaData);
688  if (err != 0)
689  {
690  _dbus_assert_not_reached ("Could not initialize WinSock");
691  _dbus_abort ();
692  }
693 
694  /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
695  * supports versions greater than 2.0 in addition to 2.0, it will
696  * still return 2.0 in wVersion since that is the version we
697  * requested.
698  */
699  if (LOBYTE (wsaData.wVersion) != 2 ||
700  HIBYTE (wsaData.wVersion) != 0)
701  {
702  _dbus_assert_not_reached ("No usable WinSock found");
703  _dbus_abort ();
704  }
705 
706  beenhere = TRUE;
707 
708 out:
709  _DBUS_UNLOCK (sysdeps);
710  return TRUE;
711 }
712 
713 
714 
715 
716 
717 
718 
719 
720 
721 /************************************************************************
722 
723  UTF / string code
724 
725  ************************************************************************/
726 
730 int _dbus_printf_string_upper_bound (const char *format,
731  va_list args)
732 {
733  /* MSVCRT's vsnprintf semantics are a bit different */
734  char buf[1024];
735  int bufsize;
736  int len;
737  va_list args_copy;
738 
739  bufsize = sizeof (buf);
740  DBUS_VA_COPY (args_copy, args);
741  len = _vsnprintf (buf, bufsize - 1, format, args_copy);
742  va_end (args_copy);
743 
744  while (len == -1) /* try again */
745  {
746  char *p;
747 
748  bufsize *= 2;
749 
750  p = malloc (bufsize);
751 
752  if (p == NULL)
753  return -1;
754 
755  DBUS_VA_COPY (args_copy, args);
756  len = _vsnprintf (p, bufsize - 1, format, args_copy);
757  va_end (args_copy);
758  free (p);
759  }
760 
761  return len;
762 }
763 
764 
772 wchar_t *
773 _dbus_win_utf8_to_utf16 (const char *str,
774  DBusError *error)
775 {
776  DBusString s;
777  int n;
778  wchar_t *retval;
779 
780  _dbus_string_init_const (&s, str);
781 
782  if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
783  {
784  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
785  return NULL;
786  }
787 
788  n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
789 
790  if (n == 0)
791  {
792  _dbus_win_set_error_from_win_error (error, GetLastError ());
793  return NULL;
794  }
795 
796  retval = dbus_new (wchar_t, n);
797 
798  if (!retval)
799  {
800  _DBUS_SET_OOM (error);
801  return NULL;
802  }
803 
804  if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
805  {
806  dbus_free (retval);
807  dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
808  return NULL;
809  }
810 
811  return retval;
812 }
813 
821 char *
822 _dbus_win_utf16_to_utf8 (const wchar_t *str,
823  DBusError *error)
824 {
825  int n;
826  char *retval;
827 
828  n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
829 
830  if (n == 0)
831  {
832  _dbus_win_set_error_from_win_error (error, GetLastError ());
833  return NULL;
834  }
835 
836  retval = dbus_malloc (n);
837 
838  if (!retval)
839  {
840  _DBUS_SET_OOM (error);
841  return NULL;
842  }
843 
844  if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
845  {
846  dbus_free (retval);
847  dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
848  return NULL;
849  }
850 
851  return retval;
852 }
853 
854 
855 
856 
857 
858 
859 /************************************************************************
860 
861 
862  ************************************************************************/
863 
865 _dbus_win_account_to_sid (const wchar_t *waccount,
866  void **ppsid,
867  DBusError *error)
868 {
869  dbus_bool_t retval = FALSE;
870  DWORD sid_length, wdomain_length;
871  SID_NAME_USE use;
872  wchar_t *wdomain;
873 
874  *ppsid = NULL;
875 
876  sid_length = 0;
877  wdomain_length = 0;
878  if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
879  NULL, &wdomain_length, &use) &&
880  GetLastError () != ERROR_INSUFFICIENT_BUFFER)
881  {
882  _dbus_win_set_error_from_win_error (error, GetLastError ());
883  return FALSE;
884  }
885 
886  *ppsid = dbus_malloc (sid_length);
887  if (!*ppsid)
888  {
889  _DBUS_SET_OOM (error);
890  return FALSE;
891  }
892 
893  wdomain = dbus_new (wchar_t, wdomain_length);
894  if (!wdomain)
895  {
896  _DBUS_SET_OOM (error);
897  goto out1;
898  }
899 
900  if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
901  wdomain, &wdomain_length, &use))
902  {
903  _dbus_win_set_error_from_win_error (error, GetLastError ());
904  goto out2;
905  }
906 
907  if (!IsValidSid ((PSID) *ppsid))
908  {
909  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
910  goto out2;
911  }
912 
913  retval = TRUE;
914 
915 out2:
916  dbus_free (wdomain);
917 out1:
918  if (!retval)
919  {
920  dbus_free (*ppsid);
921  *ppsid = NULL;
922  }
923 
924  return retval;
925 }
926 
936 unsigned long
938 {
939  return _dbus_getpid ();
940 }
941 
942 #ifndef DBUS_WINCE
943 
944 static BOOL is_winxp_sp3_or_lower()
945 {
946  OSVERSIONINFOEX osvi;
947  DWORDLONG dwlConditionMask = 0;
948  int op=VER_LESS_EQUAL;
949 
950  // Initialize the OSVERSIONINFOEX structure.
951 
952  ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
953  osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
954  osvi.dwMajorVersion = 5;
955  osvi.dwMinorVersion = 1;
956  osvi.wServicePackMajor = 3;
957  osvi.wServicePackMinor = 0;
958 
959  // Initialize the condition mask.
960 
961  VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
962  VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
963  VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
964  VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
965 
966  // Perform the test.
967 
968  return VerifyVersionInfo(
969  &osvi,
970  VER_MAJORVERSION | VER_MINORVERSION |
971  VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
972  dwlConditionMask);
973 }
974 
981 _dbus_getsid(char **sid, dbus_pid_t process_id)
982 {
983  HANDLE process_token = INVALID_HANDLE_VALUE;
984  TOKEN_USER *token_user = NULL;
985  DWORD n;
986  PSID psid;
987  int retval = FALSE;
988 
989  HANDLE process_handle;
990  if (process_id == 0)
991  process_handle = GetCurrentProcess();
992  else if (is_winxp_sp3_or_lower())
993  process_handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, process_id);
994  else
995  process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
996 
997  if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
998  {
999  _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
1000  goto failed;
1001  }
1002  if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
1003  && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
1004  || (token_user = alloca (n)) == NULL
1005  || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
1006  {
1007  _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
1008  goto failed;
1009  }
1010  psid = token_user->User.Sid;
1011  if (!IsValidSid (psid))
1012  {
1013  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1014  goto failed;
1015  }
1016  if (!ConvertSidToStringSidA (psid, sid))
1017  {
1018  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1019  goto failed;
1020  }
1021 //okay:
1022  retval = TRUE;
1023 
1024 failed:
1025  CloseHandle (process_handle);
1026  if (process_token != INVALID_HANDLE_VALUE)
1027  CloseHandle (process_token);
1028 
1029  _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
1030  return retval;
1031 }
1032 #endif
1033 
1034 /************************************************************************
1035 
1036  pipes
1037 
1038  ************************************************************************/
1039 
1054  DBusSocket *fd2,
1055  dbus_bool_t blocking,
1056  DBusError *error)
1057 {
1058  SOCKET temp, socket1 = -1, socket2 = -1;
1059  struct sockaddr_in saddr;
1060  int len;
1061  u_long arg;
1062 
1063  if (!_dbus_win_startup_winsock ())
1064  {
1065  _DBUS_SET_OOM (error);
1066  return FALSE;
1067  }
1068 
1069  temp = socket (AF_INET, SOCK_STREAM, 0);
1070  if (temp == INVALID_SOCKET)
1071  {
1072  DBUS_SOCKET_SET_ERRNO ();
1073  goto out0;
1074  }
1075 
1076  _DBUS_ZERO (saddr);
1077  saddr.sin_family = AF_INET;
1078  saddr.sin_port = 0;
1079  saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1080 
1081  if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1082  {
1083  DBUS_SOCKET_SET_ERRNO ();
1084  goto out0;
1085  }
1086 
1087  if (listen (temp, 1) == SOCKET_ERROR)
1088  {
1089  DBUS_SOCKET_SET_ERRNO ();
1090  goto out0;
1091  }
1092 
1093  len = sizeof (saddr);
1094  if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1095  {
1096  DBUS_SOCKET_SET_ERRNO ();
1097  goto out0;
1098  }
1099 
1100  socket1 = socket (AF_INET, SOCK_STREAM, 0);
1101  if (socket1 == INVALID_SOCKET)
1102  {
1103  DBUS_SOCKET_SET_ERRNO ();
1104  goto out0;
1105  }
1106 
1107  if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1108  {
1109  DBUS_SOCKET_SET_ERRNO ();
1110  goto out1;
1111  }
1112 
1113  socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1114  if (socket2 == INVALID_SOCKET)
1115  {
1116  DBUS_SOCKET_SET_ERRNO ();
1117  goto out1;
1118  }
1119 
1120  if (!blocking)
1121  {
1122  arg = 1;
1123  if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1124  {
1125  DBUS_SOCKET_SET_ERRNO ();
1126  goto out2;
1127  }
1128 
1129  arg = 1;
1130  if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1131  {
1132  DBUS_SOCKET_SET_ERRNO ();
1133  goto out2;
1134  }
1135  }
1136 
1137  fd1->sock = socket1;
1138  fd2->sock = socket2;
1139 
1140  _dbus_verbose ("full-duplex pipe %Iu:%Iu <-> %Iu:%Iu\n",
1141  fd1->sock, socket1, fd2->sock, socket2);
1142 
1143  closesocket (temp);
1144 
1145  return TRUE;
1146 
1147 out2:
1148  closesocket (socket2);
1149 out1:
1150  closesocket (socket1);
1151 out0:
1152  closesocket (temp);
1153 
1154  dbus_set_error (error, _dbus_error_from_errno (errno),
1155  "Could not setup socket pair: %s",
1157 
1158  return FALSE;
1159 }
1160 
1169 int
1171  int n_fds,
1172  int timeout_milliseconds)
1173 {
1174 #define USE_CHRIS_IMPL 0
1175 
1176 #if USE_CHRIS_IMPL
1177 
1178 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1179  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1180  char *msgp;
1181 
1182  int ret = 0;
1183  int i;
1184  struct timeval tv;
1185  int ready;
1186 
1187 #define DBUS_STACK_WSAEVENTS 256
1188  WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1189  WSAEVENT *pEvents = NULL;
1190  if (n_fds > DBUS_STACK_WSAEVENTS)
1191  pEvents = calloc(sizeof(WSAEVENT), n_fds);
1192  else
1193  pEvents = eventsOnStack;
1194 
1195 
1196 #ifdef DBUS_ENABLE_VERBOSE_MODE
1197  msgp = msg;
1198  msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1199  for (i = 0; i < n_fds; i++)
1200  {
1201  DBusPollFD *fdp = &fds[i];
1202 
1203 
1204  if (fdp->events & _DBUS_POLLIN)
1205  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1206 
1207  if (fdp->events & _DBUS_POLLOUT)
1208  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1209 
1210  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1211 
1212  // FIXME: more robust code for long msg
1213  // create on heap when msg[] becomes too small
1214  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1215  {
1216  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1217  }
1218  }
1219 
1220  msgp += sprintf (msgp, "\n");
1221  _dbus_verbose ("%s",msg);
1222 #endif
1223  for (i = 0; i < n_fds; i++)
1224  {
1225  DBusPollFD *fdp = &fds[i];
1226  WSAEVENT ev;
1227  long lNetworkEvents = FD_OOB;
1228 
1229  ev = WSACreateEvent();
1230 
1231  if (fdp->events & _DBUS_POLLIN)
1232  lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1233 
1234  if (fdp->events & _DBUS_POLLOUT)
1235  lNetworkEvents |= FD_WRITE | FD_CONNECT;
1236 
1237  WSAEventSelect(fdp->fd.sock, ev, lNetworkEvents);
1238 
1239  pEvents[i] = ev;
1240  }
1241 
1242 
1243  ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1244 
1245  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1246  {
1247  DBUS_SOCKET_SET_ERRNO ();
1248  if (errno != WSAEWOULDBLOCK)
1249  _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1250  ret = -1;
1251  }
1252  else if (ready == WSA_WAIT_TIMEOUT)
1253  {
1254  _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1255  ret = 0;
1256  }
1257  else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1258  {
1259  msgp = msg;
1260  msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1261 
1262  for (i = 0; i < n_fds; i++)
1263  {
1264  DBusPollFD *fdp = &fds[i];
1265  WSANETWORKEVENTS ne;
1266 
1267  fdp->revents = 0;
1268 
1269  WSAEnumNetworkEvents(fdp->fd.sock, pEvents[i], &ne);
1270 
1271  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1272  fdp->revents |= _DBUS_POLLIN;
1273 
1274  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1275  fdp->revents |= _DBUS_POLLOUT;
1276 
1277  if (ne.lNetworkEvents & (FD_OOB))
1278  fdp->revents |= _DBUS_POLLERR;
1279 
1280  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1281  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1282 
1283  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1284  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1285 
1286  if (ne.lNetworkEvents & (FD_OOB))
1287  msgp += sprintf (msgp, "E:%Iu ", fdp->fd.sock);
1288 
1289  msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1290 
1291  if(ne.lNetworkEvents)
1292  ret++;
1293 
1294  WSAEventSelect(fdp->fd.sock, pEvents[i], 0);
1295  }
1296 
1297  msgp += sprintf (msgp, "\n");
1298  _dbus_verbose ("%s",msg);
1299  }
1300  else
1301  {
1302  _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1303  ret = -1;
1304  }
1305 
1306  for(i = 0; i < n_fds; i++)
1307  {
1308  WSACloseEvent(pEvents[i]);
1309  }
1310 
1311  if (n_fds > DBUS_STACK_WSAEVENTS)
1312  free(pEvents);
1313 
1314  return ret;
1315 
1316 #else /* USE_CHRIS_IMPL */
1317 
1318 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1319  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1320  char *msgp;
1321 
1322  fd_set read_set, write_set, err_set;
1323  SOCKET max_fd = 0;
1324  int i;
1325  struct timeval tv;
1326  int ready;
1327 
1328  FD_ZERO (&read_set);
1329  FD_ZERO (&write_set);
1330  FD_ZERO (&err_set);
1331 
1332 
1333 #ifdef DBUS_ENABLE_VERBOSE_MODE
1334  msgp = msg;
1335  msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1336  for (i = 0; i < n_fds; i++)
1337  {
1338  DBusPollFD *fdp = &fds[i];
1339 
1340 
1341  if (fdp->events & _DBUS_POLLIN)
1342  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1343 
1344  if (fdp->events & _DBUS_POLLOUT)
1345  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1346 
1347  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1348 
1349  // FIXME: more robust code for long msg
1350  // create on heap when msg[] becomes too small
1351  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1352  {
1353  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1354  }
1355  }
1356 
1357  msgp += sprintf (msgp, "\n");
1358  _dbus_verbose ("%s",msg);
1359 #endif
1360  for (i = 0; i < n_fds; i++)
1361  {
1362  DBusPollFD *fdp = &fds[i];
1363 
1364  if (fdp->events & _DBUS_POLLIN)
1365  FD_SET (fdp->fd.sock, &read_set);
1366 
1367  if (fdp->events & _DBUS_POLLOUT)
1368  FD_SET (fdp->fd.sock, &write_set);
1369 
1370  FD_SET (fdp->fd.sock, &err_set);
1371 
1372  max_fd = MAX (max_fd, fdp->fd.sock);
1373  }
1374 
1375  // Avoid random lockups with send(), for lack of a better solution so far
1376  tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1377  tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1378 
1379  ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1380 
1381  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1382  {
1383  DBUS_SOCKET_SET_ERRNO ();
1384  if (errno != WSAEWOULDBLOCK)
1385  _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1386  }
1387  else if (ready == 0)
1388  _dbus_verbose ("select: = 0\n");
1389  else
1390  if (ready > 0)
1391  {
1392 #ifdef DBUS_ENABLE_VERBOSE_MODE
1393  msgp = msg;
1394  msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1395 
1396  for (i = 0; i < n_fds; i++)
1397  {
1398  DBusPollFD *fdp = &fds[i];
1399 
1400  if (FD_ISSET (fdp->fd.sock, &read_set))
1401  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1402 
1403  if (FD_ISSET (fdp->fd.sock, &write_set))
1404  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1405 
1406  if (FD_ISSET (fdp->fd.sock, &err_set))
1407  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1408  }
1409  msgp += sprintf (msgp, "\n");
1410  _dbus_verbose ("%s",msg);
1411 #endif
1412 
1413  for (i = 0; i < n_fds; i++)
1414  {
1415  DBusPollFD *fdp = &fds[i];
1416 
1417  fdp->revents = 0;
1418 
1419  if (FD_ISSET (fdp->fd.sock, &read_set))
1420  fdp->revents |= _DBUS_POLLIN;
1421 
1422  if (FD_ISSET (fdp->fd.sock, &write_set))
1423  fdp->revents |= _DBUS_POLLOUT;
1424 
1425  if (FD_ISSET (fdp->fd.sock, &err_set))
1426  fdp->revents |= _DBUS_POLLERR;
1427  }
1428  }
1429  return ready;
1430 #endif /* USE_CHRIS_IMPL */
1431 }
1432 
1433 
1434 
1435 
1436 /******************************************************************************
1437 
1438 Original CVS version of dbus-sysdeps.c
1439 
1440 ******************************************************************************/
1441 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1442 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1443  *
1444  * Copyright (C) 2002, 2003 Red Hat, Inc.
1445  * Copyright (C) 2003 CodeFactory AB
1446  * Copyright (C) 2005 Novell, Inc.
1447  *
1448  * Licensed under the Academic Free License version 2.1
1449  *
1450  * This program is free software; you can redistribute it and/or modify
1451  * it under the terms of the GNU General Public License as published by
1452  * the Free Software Foundation; either version 2 of the License, or
1453  * (at your option) any later version.
1454  *
1455  * This program is distributed in the hope that it will be useful,
1456  * but WITHOUT ANY WARRANTY; without even the implied warranty of
1457  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1458  * GNU General Public License for more details.
1459  *
1460  * You should have received a copy of the GNU General Public License
1461  * along with this program; if not, write to the Free Software
1462  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1463  *
1464  */
1465 
1466 
1472 void
1473 _dbus_exit (int code)
1474 {
1475  _exit (code);
1476 }
1477 
1489 DBusSocket
1490 _dbus_connect_tcp_socket (const char *host,
1491  const char *port,
1492  const char *family,
1493  DBusError *error)
1494 {
1495  return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1496 }
1497 
1498 DBusSocket
1499 _dbus_connect_tcp_socket_with_nonce (const char *host,
1500  const char *port,
1501  const char *family,
1502  const char *noncefile,
1503  DBusError *error)
1504 {
1505  DBusSocket fd = DBUS_SOCKET_INIT;
1506  int res;
1507  struct addrinfo hints;
1508  struct addrinfo *ai, *tmp;
1509 
1510  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1511 
1512  if (!_dbus_win_startup_winsock ())
1513  {
1514  _DBUS_SET_OOM (error);
1515  return _dbus_socket_get_invalid ();
1516  }
1517 
1518  _DBUS_ZERO (hints);
1519 
1520  if (!family)
1521  hints.ai_family = AF_UNSPEC;
1522  else if (!strcmp(family, "ipv4"))
1523  hints.ai_family = AF_INET;
1524  else if (!strcmp(family, "ipv6"))
1525  hints.ai_family = AF_INET6;
1526  else
1527  {
1528  dbus_set_error (error,
1530  "Unknown address family %s", family);
1531  return _dbus_socket_get_invalid ();
1532  }
1533  hints.ai_protocol = IPPROTO_TCP;
1534  hints.ai_socktype = SOCK_STREAM;
1535 #ifdef AI_ADDRCONFIG
1536  hints.ai_flags = AI_ADDRCONFIG;
1537 #else
1538  hints.ai_flags = 0;
1539 #endif
1540 
1541  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1542  {
1543  dbus_set_error (error,
1544  _dbus_error_from_errno (res),
1545  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1546  host, port, _dbus_strerror(res), res);
1547  return _dbus_socket_get_invalid ();
1548  }
1549 
1550  tmp = ai;
1551  while (tmp)
1552  {
1553  if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1554  {
1555  DBUS_SOCKET_SET_ERRNO ();
1556  dbus_set_error (error,
1557  _dbus_error_from_errno (errno),
1558  "Failed to open socket: %s",
1560  freeaddrinfo(ai);
1561  return _dbus_socket_get_invalid ();
1562  }
1563  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1564 
1565  if (connect (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1566  {
1567  DBUS_SOCKET_SET_ERRNO ();
1568  closesocket(fd.sock);
1569  fd.sock = INVALID_SOCKET;
1570  tmp = tmp->ai_next;
1571  continue;
1572  }
1573 
1574  break;
1575  }
1576  freeaddrinfo(ai);
1577 
1578  if (!_dbus_socket_is_valid (fd))
1579  {
1580  dbus_set_error (error,
1581  _dbus_error_from_errno (errno),
1582  "Failed to connect to socket \"%s:%s\" %s",
1583  host, port, _dbus_strerror_from_errno ());
1584  return _dbus_socket_get_invalid ();
1585  }
1586 
1587  if (noncefile != NULL)
1588  {
1589  DBusString noncefileStr;
1590  dbus_bool_t ret;
1591  if (!_dbus_string_init (&noncefileStr) ||
1592  !_dbus_string_append(&noncefileStr, noncefile))
1593  {
1594  closesocket (fd.sock);
1596  return _dbus_socket_get_invalid ();
1597  }
1598 
1599  ret = _dbus_send_nonce (fd, &noncefileStr, error);
1600 
1601  _dbus_string_free (&noncefileStr);
1602 
1603  if (!ret)
1604  {
1605  closesocket (fd.sock);
1606  return _dbus_socket_get_invalid ();
1607  }
1608  }
1609 
1610  /* Every SOCKET is also a HANDLE. */
1611  _dbus_win_handle_set_close_on_exec ((HANDLE) fd.sock);
1612 
1613  if (!_dbus_set_socket_nonblocking (fd, error))
1614  {
1615  closesocket (fd.sock);
1616  return _dbus_socket_get_invalid ();
1617  }
1618 
1619  return fd;
1620 }
1621 
1637 int
1638 _dbus_listen_tcp_socket (const char *host,
1639  const char *port,
1640  const char *family,
1641  DBusString *retport,
1642  DBusSocket **fds_p,
1643  DBusError *error)
1644 {
1645  DBusSocket *listen_fd = NULL;
1646  int nlisten_fd = 0, res, i, port_num = -1;
1647  struct addrinfo hints;
1648  struct addrinfo *ai, *tmp;
1649 
1650  // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1651  //That's required for family == IPv6(which is the default on Vista if family is not given)
1652  //So we use our own union instead of sockaddr_gen:
1653 
1654  typedef union {
1655  struct sockaddr Address;
1656  struct sockaddr_in AddressIn;
1657  struct sockaddr_in6 AddressIn6;
1658  } mysockaddr_gen;
1659 
1660  *fds_p = NULL;
1661  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1662 
1663  if (!_dbus_win_startup_winsock ())
1664  {
1665  _DBUS_SET_OOM (error);
1666  return -1;
1667  }
1668 
1669  _DBUS_ZERO (hints);
1670 
1671  if (!family)
1672  hints.ai_family = AF_INET;
1673  else if (!strcmp(family, "ipv4"))
1674  hints.ai_family = AF_INET;
1675  else if (!strcmp(family, "ipv6"))
1676  hints.ai_family = AF_INET6;
1677  else
1678  {
1679  dbus_set_error (error,
1681  "Unknown address family %s", family);
1682  return -1;
1683  }
1684 
1685  hints.ai_protocol = IPPROTO_TCP;
1686  hints.ai_socktype = SOCK_STREAM;
1687 #ifdef AI_ADDRCONFIG
1688  hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1689 #else
1690  hints.ai_flags = AI_PASSIVE;
1691 #endif
1692 
1693  redo_lookup_with_port:
1694  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1695  {
1696  dbus_set_error (error,
1697  _dbus_error_from_errno (res),
1698  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1699  host ? host : "*", port, _dbus_strerror(res), res);
1700  return -1;
1701  }
1702 
1703  tmp = ai;
1704  while (tmp)
1705  {
1706  DBusSocket fd = DBUS_SOCKET_INIT, *newlisten_fd;
1707  if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1708  {
1709  DBUS_SOCKET_SET_ERRNO ();
1710  dbus_set_error (error,
1711  _dbus_error_from_errno (errno),
1712  "Failed to open socket: %s",
1714  goto failed;
1715  }
1716  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1717 
1718  if (bind (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1719  {
1720  DBUS_SOCKET_SET_ERRNO ();
1721  closesocket (fd.sock);
1722  if (errno == WSAEADDRINUSE)
1723  {
1724  /* Calling this function with port=0 tries to
1725  * bind the same port twice, so we should
1726  * ignore the second bind.
1727  */
1728  tmp = tmp->ai_next;
1729  continue;
1730  }
1731  dbus_set_error (error, _dbus_error_from_errno (errno),
1732  "Failed to bind socket \"%s:%s\": %s",
1733  host ? host : "*", port, _dbus_strerror_from_errno ());
1734  goto failed;
1735  }
1736 
1737  if (listen (fd.sock, 30 /* backlog */) == SOCKET_ERROR)
1738  {
1739  DBUS_SOCKET_SET_ERRNO ();
1740  dbus_set_error (error, _dbus_error_from_errno (errno),
1741  "Failed to listen on socket \"%s:%s\": %s",
1742  host ? host : "*", port, _dbus_strerror_from_errno ());
1743  closesocket (fd.sock);
1744  goto failed;
1745  }
1746 
1747  newlisten_fd = dbus_realloc(listen_fd, sizeof(DBusSocket)*(nlisten_fd+1));
1748  if (!newlisten_fd)
1749  {
1750  closesocket (fd.sock);
1752  "Failed to allocate file handle array");
1753  goto failed;
1754  }
1755  listen_fd = newlisten_fd;
1756  listen_fd[nlisten_fd] = fd;
1757  nlisten_fd++;
1758 
1759  if (!_dbus_string_get_length(retport))
1760  {
1761  /* If the user didn't specify a port, or used 0, then
1762  the kernel chooses a port. After the first address
1763  is bound to, we need to force all remaining addresses
1764  to use the same port */
1765  if (!port || !strcmp(port, "0"))
1766  {
1767  mysockaddr_gen addr;
1768  socklen_t addrlen = sizeof(addr);
1769  char portbuf[NI_MAXSERV];
1770 
1771  if (getsockname(fd.sock, &addr.Address, &addrlen) == SOCKET_ERROR ||
1772  (res = getnameinfo (&addr.Address, addrlen, NULL, 0,
1773  portbuf, sizeof(portbuf),
1774  NI_NUMERICSERV)) != 0)
1775  {
1776  DBUS_SOCKET_SET_ERRNO ();
1777  dbus_set_error (error, _dbus_error_from_errno (errno),
1778  "Failed to resolve port \"%s:%s\": %s",
1779  host ? host : "*", port, _dbus_strerror_from_errno());
1780  goto failed;
1781  }
1782  if (!_dbus_string_append(retport, portbuf))
1783  {
1785  goto failed;
1786  }
1787 
1788  /* Release current address list & redo lookup */
1789  port = _dbus_string_get_const_data(retport);
1790  freeaddrinfo(ai);
1791  goto redo_lookup_with_port;
1792  }
1793  else
1794  {
1795  if (!_dbus_string_append(retport, port))
1796  {
1798  goto failed;
1799  }
1800  }
1801  }
1802 
1803  tmp = tmp->ai_next;
1804  }
1805  freeaddrinfo(ai);
1806  ai = NULL;
1807 
1808  if (!nlisten_fd)
1809  {
1810  _dbus_win_set_errno (WSAEADDRINUSE);
1811  dbus_set_error (error, _dbus_error_from_errno (errno),
1812  "Failed to bind socket \"%s:%s\": %s",
1813  host ? host : "*", port, _dbus_strerror_from_errno ());
1814  return -1;
1815  }
1816 
1817  sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1818 
1819  for (i = 0 ; i < nlisten_fd ; i++)
1820  {
1821  _dbus_win_handle_set_close_on_exec ((HANDLE) listen_fd[i].sock);
1822  if (!_dbus_set_socket_nonblocking (listen_fd[i], error))
1823  {
1824  goto failed;
1825  }
1826  }
1827 
1828  *fds_p = listen_fd;
1829 
1830  return nlisten_fd;
1831 
1832  failed:
1833  if (ai)
1834  freeaddrinfo(ai);
1835  for (i = 0 ; i < nlisten_fd ; i++)
1836  closesocket (listen_fd[i].sock);
1837  dbus_free(listen_fd);
1838  return -1;
1839 }
1840 
1841 
1849 DBusSocket
1851 {
1852  DBusSocket client_fd;
1853 
1854  retry:
1855  client_fd.sock = accept (listen_fd.sock, NULL, NULL);
1856 
1857  if (!_dbus_socket_is_valid (client_fd))
1858  {
1859  DBUS_SOCKET_SET_ERRNO ();
1860  if (errno == EINTR)
1861  goto retry;
1862  }
1863 
1864  _dbus_verbose ("client fd %Iu accepted\n", client_fd.sock);
1865 
1866  return client_fd;
1867 }
1868 
1869 
1870 
1871 
1874  DBusError *error)
1875 {
1876 /* FIXME: for the session bus credentials shouldn't matter (?), but
1877  * for the system bus they are presumably essential. A rough outline
1878  * of a way to implement the credential transfer would be this:
1879  *
1880  * client waits to *read* a byte.
1881  *
1882  * server creates a named pipe with a random name, sends a byte
1883  * contining its length, and its name.
1884  *
1885  * client reads the name, connects to it (using Win32 API).
1886  *
1887  * server waits for connection to the named pipe, then calls
1888  * ImpersonateNamedPipeClient(), notes its now-current credentials,
1889  * calls RevertToSelf(), closes its handles to the named pipe, and
1890  * is done. (Maybe there is some other way to get the SID of a named
1891  * pipe client without having to use impersonation?)
1892  *
1893  * client closes its handles and is done.
1894  *
1895  * Ralf: Why not sending credentials over the given this connection ?
1896  * Using named pipes makes it impossible to be connected from a unix client.
1897  *
1898  */
1899  int bytes_written;
1900  DBusString buf;
1901 
1902  _dbus_string_init_const_len (&buf, "\0", 1);
1903 again:
1904  bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1905 
1906  if (bytes_written < 0 && errno == EINTR)
1907  goto again;
1908 
1909  if (bytes_written < 0)
1910  {
1911  dbus_set_error (error, _dbus_error_from_errno (errno),
1912  "Failed to write credentials byte: %s",
1914  return FALSE;
1915  }
1916  else if (bytes_written == 0)
1917  {
1919  "wrote zero bytes writing credentials byte");
1920  return FALSE;
1921  }
1922  else
1923  {
1924  _dbus_assert (bytes_written == 1);
1925  _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1926  return TRUE;
1927  }
1928  return TRUE;
1929 }
1930 
1951  DBusCredentials *credentials,
1952  DBusError *error)
1953 {
1954  int bytes_read = 0;
1955  DBusString buf;
1956 
1957  char *sid = NULL;
1958  dbus_pid_t pid;
1959  int retval = FALSE;
1960 
1961  // could fail due too OOM
1962  if (_dbus_string_init (&buf))
1963  {
1964  bytes_read = _dbus_read_socket (handle, &buf, 1 );
1965 
1966  if (bytes_read > 0)
1967  _dbus_verbose ("got one zero byte from server\n");
1968 
1969  _dbus_string_free (&buf);
1970  }
1971 
1972  pid = _dbus_get_peer_pid_from_tcp_handle (handle.sock);
1973  if (pid == 0)
1974  return TRUE;
1975 
1976  _dbus_credentials_add_pid (credentials, pid);
1977 
1978  if (_dbus_getsid (&sid, pid))
1979  {
1980  if (!_dbus_credentials_add_windows_sid (credentials, sid))
1981  goto out;
1982  }
1983 
1984  retval = TRUE;
1985 
1986 out:
1987  if (sid)
1988  LocalFree (sid);
1989 
1990  return retval;
1991 }
1992 
2003 {
2004  /* TODO */
2005  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2006  return TRUE;
2007 }
2008 
2009 
2022  const DBusString *next_component)
2023 {
2024  dbus_bool_t dir_ends_in_slash;
2025  dbus_bool_t file_starts_with_slash;
2026 
2027  if (_dbus_string_get_length (dir) == 0 ||
2028  _dbus_string_get_length (next_component) == 0)
2029  return TRUE;
2030 
2031  dir_ends_in_slash =
2032  ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
2033  '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
2034 
2035  file_starts_with_slash =
2036  ('/' == _dbus_string_get_byte (next_component, 0) ||
2037  '\\' == _dbus_string_get_byte (next_component, 0));
2038 
2039  if (dir_ends_in_slash && file_starts_with_slash)
2040  {
2041  _dbus_string_shorten (dir, 1);
2042  }
2043  else if (!(dir_ends_in_slash || file_starts_with_slash))
2044  {
2045  if (!_dbus_string_append_byte (dir, '\\'))
2046  return FALSE;
2047  }
2048 
2049  return _dbus_string_copy (next_component, 0, dir,
2050  _dbus_string_get_length (dir));
2051 }
2052 
2053 /*---------------- DBusCredentials ----------------------------------*/
2054 
2064  const DBusString *username)
2065 {
2066  return _dbus_credentials_add_windows_sid (credentials,
2067  _dbus_string_get_const_data(username));
2068 }
2069 
2080 {
2081  dbus_bool_t retval = FALSE;
2082  char *sid = NULL;
2083 
2084  if (!_dbus_getsid(&sid, _dbus_getpid()))
2085  goto failed;
2086 
2087  if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2088  goto failed;
2089 
2090  if (!_dbus_credentials_add_windows_sid (credentials,sid))
2091  goto failed;
2092 
2093  retval = TRUE;
2094  goto end;
2095 failed:
2096  retval = FALSE;
2097 end:
2098  if (sid)
2099  LocalFree(sid);
2100 
2101  return retval;
2102 }
2103 
2118 {
2119  dbus_bool_t retval = FALSE;
2120  char *sid = NULL;
2121 
2122  if (!_dbus_getsid(&sid, _dbus_getpid()))
2123  return FALSE;
2124 
2125  retval = _dbus_string_append (str,sid);
2126 
2127  LocalFree(sid);
2128  return retval;
2129 }
2130 
2135 dbus_pid_t
2137 {
2138  return GetCurrentProcessId ();
2139 }
2140 
2144 dbus_uid_t
2146 {
2147  return DBUS_UID_UNSET;
2148 }
2149 
2151 #define NANOSECONDS_PER_SECOND 1000000000
2152 
2153 #define MICROSECONDS_PER_SECOND 1000000
2154 
2155 #define MILLISECONDS_PER_SECOND 1000
2156 
2157 #define NANOSECONDS_PER_MILLISECOND 1000000
2158 
2159 #define MICROSECONDS_PER_MILLISECOND 1000
2160 
2165 void
2166 _dbus_sleep_milliseconds (int milliseconds)
2167 {
2168  Sleep (milliseconds);
2169 }
2170 
2171 
2179 void
2180 _dbus_get_real_time (long *tv_sec,
2181  long *tv_usec)
2182 {
2183  FILETIME ft;
2184  dbus_uint64_t time64;
2185 
2186  GetSystemTimeAsFileTime (&ft);
2187 
2188  memcpy (&time64, &ft, sizeof (time64));
2189 
2190  /* Convert from 100s of nanoseconds since 1601-01-01
2191  * to Unix epoch. Yes, this is Y2038 unsafe.
2192  */
2193  time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2194  time64 /= 10;
2195 
2196  if (tv_sec)
2197  *tv_sec = time64 / 1000000;
2198 
2199  if (tv_usec)
2200  *tv_usec = time64 % 1000000;
2201 }
2202 
2210 void
2212  long *tv_usec)
2213 {
2214  /* no implementation yet, fall back to wall-clock time */
2215  _dbus_get_real_time (tv_sec, tv_usec);
2216 }
2217 
2221 void
2223 {
2224 }
2225 
2236  DBusError *error)
2237 {
2238  const char *filename_c;
2239 
2240  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2241 
2242  filename_c = _dbus_string_get_const_data (filename);
2243 
2244  if (!CreateDirectoryA (filename_c, NULL))
2245  {
2246  if (GetLastError () == ERROR_ALREADY_EXISTS)
2247  return TRUE;
2248 
2250  "Failed to create directory %s: %s\n",
2251  filename_c, _dbus_strerror_from_errno ());
2252  return FALSE;
2253  }
2254  else
2255  return TRUE;
2256 }
2257 
2258 
2270  int n_bytes,
2271  DBusError *error)
2272 {
2273  int old_len;
2274  unsigned char *p;
2275  HCRYPTPROV hprov;
2276 
2277  old_len = _dbus_string_get_length (str);
2278 
2279  if (!_dbus_string_lengthen (str, n_bytes))
2280  {
2281  _DBUS_SET_OOM (error);
2282  return FALSE;
2283  }
2284 
2285  p = _dbus_string_get_udata_len (str, old_len, n_bytes);
2286 
2287  if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2288  {
2289  _DBUS_SET_OOM (error);
2290  return FALSE;
2291  }
2292 
2293  if (!CryptGenRandom (hprov, n_bytes, p))
2294  {
2295  _DBUS_SET_OOM (error);
2296  CryptReleaseContext (hprov, 0);
2297  return FALSE;
2298  }
2299 
2300  CryptReleaseContext (hprov, 0);
2301 
2302  return TRUE;
2303 }
2304 
2311 const char*
2313 {
2314  /* Protected by _DBUS_LOCK_sysdeps */
2315  static const char* tmpdir = NULL;
2316  static char buf[1000];
2317 
2318  if (!_DBUS_LOCK (sysdeps))
2319  return NULL;
2320 
2321  if (tmpdir == NULL)
2322  {
2323  unsigned char *last_slash;
2324  unsigned char *p = (unsigned char *)buf;
2325 
2326  if (!GetTempPathA (sizeof (buf), buf))
2327  {
2328  _dbus_warn ("GetTempPath failed\n");
2329  _dbus_abort ();
2330  }
2331 
2332  /* Drop terminating backslash or slash */
2333  last_slash = _mbsrchr (p, '\\');
2334  if (last_slash > p && last_slash[1] == '\0')
2335  last_slash[0] = '\0';
2336  last_slash = _mbsrchr (p, '/');
2337  if (last_slash > p && last_slash[1] == '\0')
2338  last_slash[0] = '\0';
2339 
2340  tmpdir = buf;
2341  }
2342 
2343  _DBUS_UNLOCK (sysdeps);
2344 
2345  _dbus_assert(tmpdir != NULL);
2346 
2347  return tmpdir;
2348 }
2349 
2350 
2361  DBusError *error)
2362 {
2363  const char *filename_c;
2364 
2365  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2366 
2367  filename_c = _dbus_string_get_const_data (filename);
2368 
2369  if (DeleteFileA (filename_c) == 0)
2370  {
2372  "Failed to delete file %s: %s\n",
2373  filename_c, _dbus_strerror_from_errno ());
2374  return FALSE;
2375  }
2376  else
2377  return TRUE;
2378 }
2379 
2380 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2381 
2382 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2383 # ifdef BACKTRACES
2384 # undef BACKTRACES
2385 # endif
2386 #else
2387 # define BACKTRACES
2388 #endif
2389 
2390 #ifdef BACKTRACES
2391 /*
2392  * Backtrace Generator
2393  *
2394  * Copyright 2004 Eric Poech
2395  * Copyright 2004 Robert Shearman
2396  *
2397  * This library is free software; you can redistribute it and/or
2398  * modify it under the terms of the GNU Lesser General Public
2399  * License as published by the Free Software Foundation; either
2400  * version 2.1 of the License, or (at your option) any later version.
2401  *
2402  * This library is distributed in the hope that it will be useful,
2403  * but WITHOUT ANY WARRANTY; without even the implied warranty of
2404  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2405  * Lesser General Public License for more details.
2406  *
2407  * You should have received a copy of the GNU Lesser General Public
2408  * License along with this library; if not, write to the Free Software
2409  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2410  */
2411 
2412 #include <winver.h>
2413 #include <imagehlp.h>
2414 #include <stdio.h>
2415 
2416 #define DPRINTF(fmt, ...) fprintf (stderr, fmt, ##__VA_ARGS__)
2417 
2418 #ifdef _MSC_VER
2419 #define BOOL int
2420 
2421 #define __i386__
2422 #endif
2423 
2424 static void dump_backtrace_for_thread (HANDLE hThread)
2425 {
2426  ADDRESS old_address;
2427  STACKFRAME sf;
2428  CONTEXT context;
2429  DWORD dwImageType;
2430  int i = 0;
2431 
2432  SymSetOptions (SYMOPT_UNDNAME | SYMOPT_LOAD_LINES);
2433  SymInitialize (GetCurrentProcess (), NULL, TRUE);
2434 
2435 
2436  /* can't use this function for current thread as GetThreadContext
2437  * doesn't support getting context from current thread */
2438  if (hThread == GetCurrentThread())
2439  return;
2440 
2441  DPRINTF ("Backtrace:\n");
2442 
2443  _DBUS_ZERO (old_address);
2444  _DBUS_ZERO (context);
2445  context.ContextFlags = CONTEXT_FULL;
2446 
2447  SuspendThread (hThread);
2448 
2449  if (!GetThreadContext (hThread, &context))
2450  {
2451  DPRINTF ("Couldn't get thread context (error %ld)\n", GetLastError ());
2452  ResumeThread (hThread);
2453  return;
2454  }
2455 
2456  _DBUS_ZERO (sf);
2457 
2458 #ifdef __i386__
2459  dwImageType = IMAGE_FILE_MACHINE_I386;
2460  sf.AddrFrame.Offset = context.Ebp;
2461  sf.AddrFrame.Mode = AddrModeFlat;
2462  sf.AddrPC.Offset = context.Eip;
2463  sf.AddrPC.Mode = AddrModeFlat;
2464 #elif _M_X64
2465  dwImageType = IMAGE_FILE_MACHINE_AMD64;
2466  sf.AddrPC.Offset = context.Rip;
2467  sf.AddrPC.Mode = AddrModeFlat;
2468  sf.AddrFrame.Offset = context.Rsp;
2469  sf.AddrFrame.Mode = AddrModeFlat;
2470  sf.AddrStack.Offset = context.Rsp;
2471  sf.AddrStack.Mode = AddrModeFlat;
2472 #elif _M_IA64
2473  dwImageType = IMAGE_FILE_MACHINE_IA64;
2474  sf.AddrPC.Offset = context.StIIP;
2475  sf.AddrPC.Mode = AddrModeFlat;
2476  sf.AddrFrame.Offset = context.IntSp;
2477  sf.AddrFrame.Mode = AddrModeFlat;
2478  sf.AddrBStore.Offset= context.RsBSP;
2479  sf.AddrBStore.Mode = AddrModeFlat;
2480  sf.AddrStack.Offset = context.IntSp;
2481  sf.AddrStack.Mode = AddrModeFlat;
2482 #else
2483 # error You need to fill in the STACKFRAME structure for your architecture
2484 #endif
2485 
2486  /*
2487  backtrace format
2488  <level> <address> <symbol>[+offset] [ '[' <file> ':' <line> ']' ] [ 'in' <module> ]
2489  example:
2490  6 0xf75ade6b wine_switch_to_stack+0x2a [/usr/src/debug/wine-snapshot/libs/wine/port.c:59] in libwine.so.1
2491  */
2492  while (StackWalk (dwImageType, GetCurrentProcess (),
2493  hThread, &sf, &context, NULL, SymFunctionTableAccess,
2494  SymGetModuleBase, NULL))
2495  {
2496  char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(char)];
2497  PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
2498  DWORD64 displacement;
2499  IMAGEHLP_LINE line;
2500  DWORD dwDisplacement;
2501  IMAGEHLP_MODULE moduleInfo;
2502 
2503  /*
2504  on Wine64 version 1.7.54, we get an infinite number of stack entries
2505  pointing to the same stack frame (_start+0x29 in <wine-loader>)
2506  see bug https://bugs.winehq.org/show_bug.cgi?id=39606
2507  */
2508 #ifndef __i386__
2509  if (old_address.Offset == sf.AddrPC.Offset)
2510  {
2511  break;
2512  }
2513 #endif
2514 
2515  pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
2516  pSymbol->MaxNameLen = MAX_SYM_NAME;
2517 
2518  if (SymFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &displacement, pSymbol))
2519  {
2520  if (displacement)
2521  DPRINTF ("%3d %s+0x%I64x", i++, pSymbol->Name, displacement);
2522  else
2523  DPRINTF ("%3d %s", i++, pSymbol->Name);
2524  }
2525  else
2526  DPRINTF ("%3d 0x%lx", i++, sf.AddrPC.Offset);
2527 
2528  line.SizeOfStruct = sizeof(IMAGEHLP_LINE);
2529  if (SymGetLineFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &dwDisplacement, &line))
2530  {
2531  DPRINTF (" [%s:%ld]", line.FileName, line.LineNumber);
2532  }
2533 
2534  moduleInfo.SizeOfStruct = sizeof(moduleInfo);
2535  if (SymGetModuleInfo (GetCurrentProcess (), sf.AddrPC.Offset, &moduleInfo))
2536  {
2537  DPRINTF (" in %s", moduleInfo.ModuleName);
2538  }
2539  DPRINTF ("\n");
2540  old_address = sf.AddrPC;
2541  }
2542  ResumeThread (hThread);
2543 }
2544 
2545 static DWORD WINAPI dump_thread_proc (LPVOID lpParameter)
2546 {
2547  dump_backtrace_for_thread ((HANDLE) lpParameter);
2548  return 0;
2549 }
2550 
2551 /* cannot get valid context from current thread, so we have to execute
2552  * backtrace from another thread */
2553 static void dump_backtrace ()
2554 {
2555  HANDLE hCurrentThread;
2556  HANDLE hThread;
2557  DWORD dwThreadId;
2558  DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
2559  GetCurrentProcess (), &hCurrentThread,
2560  0, FALSE, DUPLICATE_SAME_ACCESS);
2561  hThread = CreateThread (NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2562  0, &dwThreadId);
2563  WaitForSingleObject (hThread, INFINITE);
2564  CloseHandle (hThread);
2565  CloseHandle (hCurrentThread);
2566 }
2567 #endif
2568 #endif /* asserts or tests enabled */
2569 
2570 #ifdef BACKTRACES
2572 {
2573  dump_backtrace ();
2574 }
2575 #else
2576 void _dbus_print_backtrace (void)
2577 {
2578  _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2579 }
2580 #endif
2581 
2582 static dbus_uint32_t fromAscii(char ascii)
2583 {
2584  if(ascii >= '0' && ascii <= '9')
2585  return ascii - '0';
2586  if(ascii >= 'A' && ascii <= 'F')
2587  return ascii - 'A' + 10;
2588  if(ascii >= 'a' && ascii <= 'f')
2589  return ascii - 'a' + 10;
2590  return 0;
2591 }
2592 
2594  dbus_bool_t create_if_not_found,
2595  DBusError *error)
2596 {
2597 #ifdef DBUS_WINCE
2598  return TRUE;
2599  // TODO
2600 #else
2601  HW_PROFILE_INFOA info;
2602  char *lpc = &info.szHwProfileGuid[0];
2603  dbus_uint32_t u;
2604 
2605  // the hw-profile guid lives long enough
2606  if(!GetCurrentHwProfileA(&info))
2607  {
2608  dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2609  return FALSE;
2610  }
2611 
2612  // Form: {12340001-4980-1920-6788-123456789012}
2613  lpc++;
2614  // 12340001
2615  u = ((fromAscii(lpc[0]) << 0) |
2616  (fromAscii(lpc[1]) << 4) |
2617  (fromAscii(lpc[2]) << 8) |
2618  (fromAscii(lpc[3]) << 12) |
2619  (fromAscii(lpc[4]) << 16) |
2620  (fromAscii(lpc[5]) << 20) |
2621  (fromAscii(lpc[6]) << 24) |
2622  (fromAscii(lpc[7]) << 28));
2623  machine_id->as_uint32s[0] = u;
2624 
2625  lpc += 9;
2626  // 4980-1920
2627  u = ((fromAscii(lpc[0]) << 0) |
2628  (fromAscii(lpc[1]) << 4) |
2629  (fromAscii(lpc[2]) << 8) |
2630  (fromAscii(lpc[3]) << 12) |
2631  (fromAscii(lpc[5]) << 16) |
2632  (fromAscii(lpc[6]) << 20) |
2633  (fromAscii(lpc[7]) << 24) |
2634  (fromAscii(lpc[8]) << 28));
2635  machine_id->as_uint32s[1] = u;
2636 
2637  lpc += 10;
2638  // 6788-1234
2639  u = ((fromAscii(lpc[0]) << 0) |
2640  (fromAscii(lpc[1]) << 4) |
2641  (fromAscii(lpc[2]) << 8) |
2642  (fromAscii(lpc[3]) << 12) |
2643  (fromAscii(lpc[5]) << 16) |
2644  (fromAscii(lpc[6]) << 20) |
2645  (fromAscii(lpc[7]) << 24) |
2646  (fromAscii(lpc[8]) << 28));
2647  machine_id->as_uint32s[2] = u;
2648 
2649  lpc += 9;
2650  // 56789012
2651  u = ((fromAscii(lpc[0]) << 0) |
2652  (fromAscii(lpc[1]) << 4) |
2653  (fromAscii(lpc[2]) << 8) |
2654  (fromAscii(lpc[3]) << 12) |
2655  (fromAscii(lpc[4]) << 16) |
2656  (fromAscii(lpc[5]) << 20) |
2657  (fromAscii(lpc[6]) << 24) |
2658  (fromAscii(lpc[7]) << 28));
2659  machine_id->as_uint32s[3] = u;
2660 #endif
2661  return TRUE;
2662 }
2663 
2664 static
2665 HANDLE _dbus_global_lock (const char *mutexname)
2666 {
2667  HANDLE mutex;
2668  DWORD gotMutex;
2669 
2670  mutex = CreateMutexA( NULL, FALSE, mutexname );
2671  if( !mutex )
2672  {
2673  return FALSE;
2674  }
2675 
2676  gotMutex = WaitForSingleObject( mutex, INFINITE );
2677  switch( gotMutex )
2678  {
2679  case WAIT_ABANDONED:
2680  ReleaseMutex (mutex);
2681  CloseHandle (mutex);
2682  return 0;
2683  case WAIT_FAILED:
2684  case WAIT_TIMEOUT:
2685  return 0;
2686  }
2687 
2688  return mutex;
2689 }
2690 
2691 static
2692 void _dbus_global_unlock (HANDLE mutex)
2693 {
2694  ReleaseMutex (mutex);
2695  CloseHandle (mutex);
2696 }
2697 
2698 // for proper cleanup in dbus-daemon
2699 static HANDLE hDBusDaemonMutex = NULL;
2700 static HANDLE hDBusSharedMem = NULL;
2701 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2702 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2703 // sync _dbus_get_autolaunch_address
2704 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2705 // mutex to determine if dbus-daemon is already started (per user)
2706 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2707 // named shm for dbus adress info (per user)
2708 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2709 
2710 static dbus_bool_t
2711 _dbus_get_install_root_as_hash(DBusString *out)
2712 {
2713  DBusString install_path;
2714 
2715  _dbus_string_init(&install_path);
2716 
2717  if (!_dbus_get_install_root (&install_path) ||
2718  _dbus_string_get_length (&install_path) == 0)
2719  return FALSE;
2720 
2721  _dbus_string_init(out);
2722  _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2723 
2724  if (!_dbus_sha_compute (&install_path, out))
2725  return FALSE;
2726 
2727  return TRUE;
2728 }
2729 
2730 static dbus_bool_t
2731 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2732 {
2733  _dbus_string_init(out);
2734  _dbus_string_append(out,basestring);
2735 
2736  if (!scope)
2737  {
2738  return TRUE;
2739  }
2740  else if (strcmp(scope,"*install-path") == 0
2741  // for 1.3 compatibility
2742  || strcmp(scope,"install-path") == 0)
2743  {
2744  DBusString temp;
2745  if (!_dbus_get_install_root_as_hash(&temp))
2746  {
2747  _dbus_string_free(out);
2748  return FALSE;
2749  }
2750  _dbus_string_append(out,"-");
2751  _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2752  _dbus_string_free(&temp);
2753  }
2754  else if (strcmp(scope,"*user") == 0)
2755  {
2756  _dbus_string_append(out,"-");
2758  {
2759  _dbus_string_free(out);
2760  return FALSE;
2761  }
2762  }
2763  else if (strlen(scope) > 0)
2764  {
2765  _dbus_string_append(out,"-");
2766  _dbus_string_append(out,scope);
2767  return TRUE;
2768  }
2769  return TRUE;
2770 }
2771 
2772 static dbus_bool_t
2773 _dbus_get_shm_name (DBusString *out,const char *scope)
2774 {
2775  return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2776 }
2777 
2778 static dbus_bool_t
2779 _dbus_get_mutex_name (DBusString *out,const char *scope)
2780 {
2781  return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2782 }
2783 
2785 _dbus_daemon_is_session_bus_address_published (const char *scope)
2786 {
2787  HANDLE lock;
2788  DBusString mutex_name;
2789 
2790  if (!_dbus_get_mutex_name(&mutex_name,scope))
2791  {
2792  _dbus_string_free( &mutex_name );
2793  return FALSE;
2794  }
2795 
2796  if (hDBusDaemonMutex)
2797  return TRUE;
2798 
2799  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2800  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2801 
2802  // we use CreateMutex instead of OpenMutex because of possible race conditions,
2803  // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2804  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2805 
2806  /* The client uses mutex ownership to detect a running server, so the server should do so too.
2807  Fortunally the client deletes the mutex in the lock protected area, so checking presence
2808  will work too. */
2809 
2810  _dbus_global_unlock( lock );
2811 
2812  _dbus_string_free( &mutex_name );
2813 
2814  if (hDBusDaemonMutex == NULL)
2815  return FALSE;
2816  if (GetLastError() == ERROR_ALREADY_EXISTS)
2817  {
2818  CloseHandle(hDBusDaemonMutex);
2819  hDBusDaemonMutex = NULL;
2820  return TRUE;
2821  }
2822  // mutex wasn't created before, so return false.
2823  // We leave the mutex name allocated for later reusage
2824  // in _dbus_daemon_publish_session_bus_address.
2825  return FALSE;
2826 }
2827 
2829 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2830 {
2831  HANDLE lock;
2832  char *shared_addr = NULL;
2833  DBusString shm_name;
2834  DBusString mutex_name;
2835  dbus_uint64_t len;
2836 
2837  _dbus_assert (address);
2838 
2839  if (!_dbus_get_mutex_name(&mutex_name,scope))
2840  {
2841  _dbus_string_free( &mutex_name );
2842  return FALSE;
2843  }
2844 
2845  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2846  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2847 
2848  if (!hDBusDaemonMutex)
2849  {
2850  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2851  }
2852  _dbus_string_free( &mutex_name );
2853 
2854  // acquire the mutex
2855  if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2856  {
2857  _dbus_global_unlock( lock );
2858  CloseHandle( hDBusDaemonMutex );
2859  return FALSE;
2860  }
2861 
2862  if (!_dbus_get_shm_name(&shm_name,scope))
2863  {
2864  _dbus_string_free( &shm_name );
2865  _dbus_global_unlock( lock );
2866  return FALSE;
2867  }
2868 
2869  // create shm
2870  len = strlen (address) + 1;
2871 
2872  hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2873  len >> 32, len & 0xffffffffu,
2874  _dbus_string_get_const_data(&shm_name) );
2875  _dbus_assert( hDBusSharedMem );
2876 
2877  shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2878 
2879  _dbus_assert (shared_addr);
2880 
2881  strcpy( shared_addr, address);
2882 
2883  // cleanup
2884  UnmapViewOfFile( shared_addr );
2885 
2886  _dbus_global_unlock( lock );
2887  _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2888 
2889  _dbus_string_free( &shm_name );
2890  return TRUE;
2891 }
2892 
2893 void
2894 _dbus_daemon_unpublish_session_bus_address (void)
2895 {
2896  HANDLE lock;
2897 
2898  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2899  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2900 
2901  CloseHandle( hDBusSharedMem );
2902 
2903  hDBusSharedMem = NULL;
2904 
2905  ReleaseMutex( hDBusDaemonMutex );
2906 
2907  CloseHandle( hDBusDaemonMutex );
2908 
2909  hDBusDaemonMutex = NULL;
2910 
2911  _dbus_global_unlock( lock );
2912 }
2913 
2914 static dbus_bool_t
2915 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2916 {
2917  HANDLE sharedMem;
2918  char *shared_addr;
2919  int i;
2920 
2921  // read shm
2922  for(i=0;i<20;++i) {
2923  // we know that dbus-daemon is available, so we wait until shm is available
2924  sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2925  if( sharedMem == 0 )
2926  Sleep( 100 );
2927  if ( sharedMem != 0)
2928  break;
2929  }
2930 
2931  if( sharedMem == 0 )
2932  return FALSE;
2933 
2934  shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2935 
2936  if( !shared_addr )
2937  return FALSE;
2938 
2939  _dbus_string_init( address );
2940 
2941  _dbus_string_append( address, shared_addr );
2942 
2943  // cleanup
2944  UnmapViewOfFile( shared_addr );
2945 
2946  CloseHandle( sharedMem );
2947 
2948  return TRUE;
2949 }
2950 
2951 static dbus_bool_t
2952 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2953 {
2954  HANDLE lock;
2955  HANDLE daemon;
2956  DBusString mutex_name;
2957  dbus_bool_t bRet = TRUE;
2958 
2959  if (!_dbus_get_mutex_name(&mutex_name,scope))
2960  {
2961  _dbus_string_free( &mutex_name );
2962  return FALSE;
2963  }
2964 
2965  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2966  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2967 
2968  // do checks
2969  daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2970  if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2971  {
2972  ReleaseMutex (daemon);
2973  CloseHandle (daemon);
2974 
2975  _dbus_global_unlock( lock );
2976  _dbus_string_free( &mutex_name );
2977  return FALSE;
2978  }
2979 
2980  // read shm
2981  bRet = _dbus_get_autolaunch_shm( address, shm_name );
2982 
2983  // cleanup
2984  CloseHandle ( daemon );
2985 
2986  _dbus_global_unlock( lock );
2987  _dbus_string_free( &mutex_name );
2988 
2989  return bRet;
2990 }
2991 
2993 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2994  DBusError *error)
2995 {
2996  HANDLE mutex;
2997  STARTUPINFOA si;
2998  PROCESS_INFORMATION pi;
2999  dbus_bool_t retval = FALSE;
3000  LPSTR lpFile;
3001  char dbus_exe_path[MAX_PATH];
3002  char dbus_args[MAX_PATH * 2];
3003  const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3004  DBusString shm_name;
3005 
3006  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3007 
3008  if (!_dbus_get_shm_name(&shm_name,scope))
3009  {
3010  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3011  return FALSE;
3012  }
3013 
3014  mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3015 
3016  if (_dbus_daemon_already_runs(address,&shm_name,scope))
3017  {
3018  _dbus_verbose( "found running dbus daemon for scope '%s' at %s\n",
3019  scope ? scope : "", _dbus_string_get_const_data (&shm_name) );
3020  retval = TRUE;
3021  goto out;
3022  }
3023 
3024  if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3025  {
3026  // Look in directory containing dbus shared library
3027  HMODULE hmod;
3028  char dbus_module_path[MAX_PATH];
3029  DWORD rc;
3030 
3031  _dbus_verbose( "did not found dbus daemon executable on default search path, "
3032  "trying path where dbus shared library is located");
3033 
3034  hmod = _dbus_win_get_dll_hmodule();
3035  rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3036  if (rc <= 0)
3037  {
3038  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3039  retval = FALSE;
3040  goto out;
3041  }
3042  else
3043  {
3044  char *ext_idx = strrchr(dbus_module_path, '\\');
3045  if (ext_idx)
3046  *ext_idx = '\0';
3047  if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3048  {
3049  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3050  retval = FALSE;
3051  printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3052  printf ("or start the daemon manually\n\n");
3053  goto out;
3054  }
3055  _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3056  }
3057  }
3058 
3059 
3060  // Create process
3061  ZeroMemory( &si, sizeof(si) );
3062  si.cb = sizeof(si);
3063  ZeroMemory( &pi, sizeof(pi) );
3064 
3065  _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3066 
3067 // argv[i] = "--config-file=bus\\session.conf";
3068 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3069  if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3070  {
3071  CloseHandle (pi.hThread);
3072  CloseHandle (pi.hProcess);
3073  retval = _dbus_get_autolaunch_shm( address, &shm_name );
3074  if (retval == FALSE)
3075  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3076  }
3077  else
3078  {
3079  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3080  retval = FALSE;
3081  }
3082 
3083 out:
3084  if (retval)
3085  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3086  else
3087  _DBUS_ASSERT_ERROR_IS_SET (error);
3088 
3089  _dbus_global_unlock (mutex);
3090  _dbus_string_free (&shm_name);
3091 
3092  return retval;
3093  }
3094 
3095 
3104  DBusError *error)
3105 {
3106  // TODO
3107  return TRUE;
3108 }
3109 
3117 dbus_int32_t
3119 {
3120  // +/- 1 is needed here!
3121  // no volatile argument with mingw
3122  return InterlockedIncrement (&atomic->value) - 1;
3123 }
3124 
3132 dbus_int32_t
3134 {
3135  // +/- 1 is needed here!
3136  // no volatile argument with mingw
3137  return InterlockedDecrement (&atomic->value) + 1;
3138 }
3139 
3147 dbus_int32_t
3149 {
3150  /* In this situation, GLib issues a MemoryBarrier() and then returns
3151  * atomic->value. However, mingw from mingw.org (not to be confused with
3152  * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3153  * headers, so we have to get a memory barrier some other way.
3154  *
3155  * InterlockedIncrement is older, and is documented on MSDN to be a full
3156  * memory barrier, so let's use that.
3157  */
3158  long dummy = 0;
3159 
3160  InterlockedExchange (&dummy, 1);
3161 
3162  return atomic->value;
3163 }
3164 
3172 void
3174 {
3175 }
3176 
3185 {
3186  return e == WSAEWOULDBLOCK;
3187 }
3188 
3197 _dbus_get_install_root (DBusString *str)
3198 {
3199  /* this is just an initial guess */
3200  DWORD pathLength = MAX_PATH;
3201  unsigned char *lastSlash;
3202  unsigned char *prefix;
3203 
3204  do
3205  {
3206  /* allocate enough space for our best guess at the length */
3207  if (!_dbus_string_set_length (str, pathLength))
3208  {
3209  _dbus_string_set_length (str, 0);
3210  return FALSE;
3211  }
3212 
3213  SetLastError (0);
3214  pathLength = GetModuleFileNameA (_dbus_win_get_dll_hmodule (),
3215  _dbus_string_get_data (str), _dbus_string_get_length (str));
3216 
3217  if (pathLength == 0 || GetLastError () != 0)
3218  {
3219  /* failed, but not OOM */
3220  _dbus_string_set_length (str, 0);
3221  return TRUE;
3222  }
3223 
3224  /* if the return is strictly less than the buffer size, it has
3225  * not been truncated, so we can continue */
3226  if (pathLength < (DWORD) _dbus_string_get_length (str))
3227  {
3228  /* reduce the length to match what Windows filled in */
3229  if (!_dbus_string_set_length (str, pathLength))
3230  {
3231  _dbus_string_set_length (str, 0);
3232  return FALSE;
3233  }
3234 
3235  break;
3236  }
3237 
3238  /* else it may have been truncated; try with a larger buffer */
3239  pathLength *= 2;
3240  }
3241  while (TRUE);
3242 
3243  /* the rest of this function works by direct byte manipulation of the
3244  * underlying buffer */
3245  prefix = _dbus_string_get_udata (str);
3246 
3247  lastSlash = _mbsrchr (prefix, '\\');
3248  if (lastSlash == NULL) {
3249  /* failed, but not OOM */
3250  _dbus_string_set_length (str, 0);
3251  return TRUE;
3252  }
3253  //cut off binary name
3254  lastSlash[1] = 0;
3255 
3256  //cut possible "\\bin"
3257  //this fails if we are in a double-byte system codepage and the
3258  //folder's name happens to end with the *bytes*
3259  //"\\bin"... (I.e. the second byte of some Han character and then
3260  //the Latin "bin", but that is not likely I think...
3261  if (lastSlash - prefix >= 4 && _mbsnicmp (lastSlash - 4, (const unsigned char *)"\\bin", 4) == 0)
3262  lastSlash[-3] = 0;
3263  else if (lastSlash - prefix >= 10 && _mbsnicmp (lastSlash - 10, (const unsigned char *)"\\bin\\debug", 10) == 0)
3264  lastSlash[-9] = 0;
3265  else if (lastSlash - prefix >= 12 && _mbsnicmp (lastSlash - 12, (const unsigned char *)"\\bin\\release", 12) == 0)
3266  lastSlash[-11] = 0;
3267 
3268  /* fix up the length to match the byte-manipulation */
3269  _dbus_string_set_length (str, strlen ((char *) prefix));
3270 
3271  return TRUE;
3272 }
3273 
3274 /* See comment in dbus-sysdeps-unix.c */
3277  DBusString *address,
3278  DBusError *error)
3279 {
3280  /* Probably fill this in with something based on COM? */
3281  *supported = FALSE;
3282  return TRUE;
3283 }
3284 
3300  DBusCredentials *credentials)
3301 {
3302  DBusString homedir;
3303  DBusString dotdir;
3304  const char *homepath;
3305  const char *homedrive;
3306 
3307  _dbus_assert (credentials != NULL);
3309 
3310  if (!_dbus_string_init (&homedir))
3311  return FALSE;
3312 
3313  homedrive = _dbus_getenv("HOMEDRIVE");
3314  if (homedrive != NULL && *homedrive != '\0')
3315  {
3316  _dbus_string_append(&homedir,homedrive);
3317  }
3318 
3319  homepath = _dbus_getenv("HOMEPATH");
3320  if (homepath != NULL && *homepath != '\0')
3321  {
3322  _dbus_string_append(&homedir,homepath);
3323  }
3324 
3325 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3326  {
3327  const char *override;
3328 
3329  override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3330  if (override != NULL && *override != '\0')
3331  {
3332  _dbus_string_set_length (&homedir, 0);
3333  if (!_dbus_string_append (&homedir, override))
3334  goto failed;
3335 
3336  _dbus_verbose ("Using fake homedir for testing: %s\n",
3337  _dbus_string_get_const_data (&homedir));
3338  }
3339  else
3340  {
3341  /* Not strictly thread-safe, but if we fail at thread-safety here,
3342  * the worst that will happen is some extra warnings. */
3343  static dbus_bool_t already_warned = FALSE;
3344  if (!already_warned)
3345  {
3346  _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3347  already_warned = TRUE;
3348  }
3349  }
3350  }
3351 #endif
3352 
3353 #ifdef DBUS_WINCE
3354  /* It's not possible to create a .something directory in Windows CE
3355  using the file explorer. */
3356 #define KEYRING_DIR "dbus-keyrings"
3357 #else
3358 #define KEYRING_DIR ".dbus-keyrings"
3359 #endif
3360 
3361  _dbus_string_init_const (&dotdir, KEYRING_DIR);
3362  if (!_dbus_concat_dir_and_file (&homedir,
3363  &dotdir))
3364  goto failed;
3365 
3366  if (!_dbus_string_copy (&homedir, 0,
3367  directory, _dbus_string_get_length (directory))) {
3368  goto failed;
3369  }
3370 
3371  _dbus_string_free (&homedir);
3372  return TRUE;
3373 
3374  failed:
3375  _dbus_string_free (&homedir);
3376  return FALSE;
3377 }
3378 
3384 dbus_bool_t
3385 _dbus_file_exists (const char *file)
3386 {
3387  DWORD attributes = GetFileAttributesA (file);
3388 
3389  if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3390  return TRUE;
3391  else
3392  return FALSE;
3393 }
3394 
3402 const char*
3403 _dbus_strerror (int error_number)
3404 {
3405 #ifdef DBUS_WINCE
3406  // TODO
3407  return "unknown";
3408 #else
3409  const char *msg;
3410 
3411  switch (error_number)
3412  {
3413  case WSAEINTR:
3414  return "Interrupted function call";
3415  case WSAEACCES:
3416  return "Permission denied";
3417  case WSAEFAULT:
3418  return "Bad address";
3419  case WSAEINVAL:
3420  return "Invalid argument";
3421  case WSAEMFILE:
3422  return "Too many open files";
3423  case WSAEWOULDBLOCK:
3424  return "Resource temporarily unavailable";
3425  case WSAEINPROGRESS:
3426  return "Operation now in progress";
3427  case WSAEALREADY:
3428  return "Operation already in progress";
3429  case WSAENOTSOCK:
3430  return "Socket operation on nonsocket";
3431  case WSAEDESTADDRREQ:
3432  return "Destination address required";
3433  case WSAEMSGSIZE:
3434  return "Message too long";
3435  case WSAEPROTOTYPE:
3436  return "Protocol wrong type for socket";
3437  case WSAENOPROTOOPT:
3438  return "Bad protocol option";
3439  case WSAEPROTONOSUPPORT:
3440  return "Protocol not supported";
3441  case WSAESOCKTNOSUPPORT:
3442  return "Socket type not supported";
3443  case WSAEOPNOTSUPP:
3444  return "Operation not supported";
3445  case WSAEPFNOSUPPORT:
3446  return "Protocol family not supported";
3447  case WSAEAFNOSUPPORT:
3448  return "Address family not supported by protocol family";
3449  case WSAEADDRINUSE:
3450  return "Address already in use";
3451  case WSAEADDRNOTAVAIL:
3452  return "Cannot assign requested address";
3453  case WSAENETDOWN:
3454  return "Network is down";
3455  case WSAENETUNREACH:
3456  return "Network is unreachable";
3457  case WSAENETRESET:
3458  return "Network dropped connection on reset";
3459  case WSAECONNABORTED:
3460  return "Software caused connection abort";
3461  case WSAECONNRESET:
3462  return "Connection reset by peer";
3463  case WSAENOBUFS:
3464  return "No buffer space available";
3465  case WSAEISCONN:
3466  return "Socket is already connected";
3467  case WSAENOTCONN:
3468  return "Socket is not connected";
3469  case WSAESHUTDOWN:
3470  return "Cannot send after socket shutdown";
3471  case WSAETIMEDOUT:
3472  return "Connection timed out";
3473  case WSAECONNREFUSED:
3474  return "Connection refused";
3475  case WSAEHOSTDOWN:
3476  return "Host is down";
3477  case WSAEHOSTUNREACH:
3478  return "No route to host";
3479  case WSAEPROCLIM:
3480  return "Too many processes";
3481  case WSAEDISCON:
3482  return "Graceful shutdown in progress";
3483  case WSATYPE_NOT_FOUND:
3484  return "Class type not found";
3485  case WSAHOST_NOT_FOUND:
3486  return "Host not found";
3487  case WSATRY_AGAIN:
3488  return "Nonauthoritative host not found";
3489  case WSANO_RECOVERY:
3490  return "This is a nonrecoverable error";
3491  case WSANO_DATA:
3492  return "Valid name, no data record of requested type";
3493  case WSA_INVALID_HANDLE:
3494  return "Specified event object handle is invalid";
3495  case WSA_INVALID_PARAMETER:
3496  return "One or more parameters are invalid";
3497  case WSA_IO_INCOMPLETE:
3498  return "Overlapped I/O event object not in signaled state";
3499  case WSA_IO_PENDING:
3500  return "Overlapped operations will complete later";
3501  case WSA_NOT_ENOUGH_MEMORY:
3502  return "Insufficient memory available";
3503  case WSA_OPERATION_ABORTED:
3504  return "Overlapped operation aborted";
3505 #ifdef WSAINVALIDPROCTABLE
3506 
3507  case WSAINVALIDPROCTABLE:
3508  return "Invalid procedure table from service provider";
3509 #endif
3510 #ifdef WSAINVALIDPROVIDER
3511 
3512  case WSAINVALIDPROVIDER:
3513  return "Invalid service provider version number";
3514 #endif
3515 #ifdef WSAPROVIDERFAILEDINIT
3516 
3517  case WSAPROVIDERFAILEDINIT:
3518  return "Unable to initialize a service provider";
3519 #endif
3520 
3521  case WSASYSCALLFAILURE:
3522  return "System call failure";
3523  }
3524  msg = strerror (error_number);
3525  if (msg == NULL)
3526  msg = "unknown";
3527 
3528  return msg;
3529 #endif //DBUS_WINCE
3530 }
3531 
3539 void
3540 _dbus_win_set_error_from_win_error (DBusError *error,
3541  int code)
3542 {
3543  char *msg;
3544 
3545  /* As we want the English message, use the A API */
3546  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3547  FORMAT_MESSAGE_IGNORE_INSERTS |
3548  FORMAT_MESSAGE_FROM_SYSTEM,
3549  NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3550  (LPSTR) &msg, 0, NULL);
3551  if (msg)
3552  {
3553  dbus_set_error (error, "win32.error", "%s", msg);
3554  LocalFree (msg);
3555  }
3556  else
3557  dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3558 }
3559 
3560 void
3561 _dbus_win_warn_win_error (const char *message,
3562  unsigned long code)
3563 {
3564  DBusError error;
3565 
3566  dbus_error_init (&error);
3567  _dbus_win_set_error_from_win_error (&error, code);
3568  _dbus_warn ("%s: %s\n", message, error.message);
3569  dbus_error_free (&error);
3570 }
3571 
3581  DBusError *error)
3582 {
3583  const char *filename_c;
3584 
3585  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3586 
3587  filename_c = _dbus_string_get_const_data (filename);
3588 
3589  if (RemoveDirectoryA (filename_c) == 0)
3590  {
3591  char *emsg = _dbus_win_error_string (GetLastError ());
3592  dbus_set_error (error, _dbus_win_error_from_last_error (),
3593  "Failed to remove directory %s: %s",
3594  filename_c, emsg);
3595  _dbus_win_free_error_string (emsg);
3596  return FALSE;
3597  }
3598 
3599  return TRUE;
3600 }
3601 
3610 {
3611  if (_dbus_string_get_length (filename) > 0)
3612  return _dbus_string_get_byte (filename, 1) == ':'
3613  || _dbus_string_get_byte (filename, 0) == '\\'
3614  || _dbus_string_get_byte (filename, 0) == '/';
3615  else
3616  return FALSE;
3617 }
3618 
3621 {
3622  return FALSE;
3623 }
3624 
3625 int
3626 _dbus_save_socket_errno (void)
3627 {
3628  return errno;
3629 }
3630 
3631 void
3632 _dbus_restore_socket_errno (int saved_errno)
3633 {
3634  _dbus_win_set_errno (saved_errno);
3635 }
3636 
3638 /* tests in dbus-sysdeps-util.c */
3639 
dbus_bool_t _dbus_string_append(DBusString *str, const char *buffer)
Appends a nul-terminated C-style string to a DBusString.
Definition: dbus-string.c:935
An atomic integer safe to increment or decrement from multiple threads.
Definition: dbus-sysdeps.h:280
#define DBUS_ERROR_FILE_NOT_FOUND
Missing file.
#define DBUS_ERROR_FILE_EXISTS
Existing file and the operation you&#39;re using does not silently overwrite.
const char * message
public error message field
Definition: dbus-errors.h:51
dbus_int32_t _dbus_atomic_get(DBusAtomic *atomic)
Atomically get the value of an integer.
#define NULL
A null pointer, defined appropriately for C or C++.
volatile dbus_int32_t value
Value of the atomic integer.
Definition: dbus-sysdeps.h:285
dbus_bool_t _dbus_check_dir_is_private_to_user(DBusString *dir, DBusError *error)
Checks to make sure the given directory is private to the user.
void _dbus_abort(void)
Aborts the program with SIGABRT (dumping core).
Definition: dbus-sysdeps.c:77
void * dbus_realloc(void *memory, size_t bytes)
Resizes a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
Definition: dbus-memory.c:601
dbus_bool_t _dbus_string_lengthen(DBusString *str, int additional_length)
Makes a string longer by the given number of bytes.
Definition: dbus-string.c:760
void dbus_free(void *memory)
Frees a block of memory previously allocated by dbus_malloc() or dbus_malloc0().
Definition: dbus-memory.c:701
dbus_bool_t _dbus_socketpair(DBusSocket *fd1, DBusSocket *fd2, dbus_bool_t blocking, DBusError *error)
Creates pair of connect sockets (as in socketpair()).
#define dbus_new(type, count)
Safe macro for using dbus_malloc().
Definition: dbus-memory.h:58
dbus_bool_t _dbus_path_is_absolute(const DBusString *filename)
Checks whether the filename is an absolute path.
dbus_uint32_t as_uint32s[DBUS_UUID_LENGTH_WORDS]
guid as four uint32 values
dbus_bool_t _dbus_check_setuid(void)
NOTE: If you modify this function, please also consider making the corresponding change in GLib...
void _dbus_string_tolower_ascii(const DBusString *str, int start, int len)
Converts the given range of the string to lower case.
Definition: dbus-string.c:2485
void dbus_error_free(DBusError *error)
Frees an error that&#39;s been set (or just initialized), then reinitializes the error as in dbus_error_i...
Definition: dbus-errors.c:211
A globally unique ID ; we have one for each DBusServer, and also one for each machine with libdbus in...
dbus_pid_t _dbus_getpid(void)
Gets our process ID.
#define _DBUS_POLLIN
There is data to read.
Definition: dbus-sysdeps.h:386
dbus_bool_t _dbus_concat_dir_and_file(DBusString *dir, const DBusString *next_component)
Appends the given filename to the given directory.
dbus_bool_t _dbus_file_exists(const char *file)
Checks if a file exists.
char * _dbus_string_get_data_len(DBusString *str, int start, int len)
Gets a sub-portion of the raw character buffer from the string.
Definition: dbus-string.c:490
int _dbus_read_socket(DBusSocket fd, DBusString *buffer, int count)
Socket interface.
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
Definition: dbus-string.c:175
#define DBUS_ERROR_IO_ERROR
Something went wrong reading or writing to a socket, for example.
void _dbus_string_shorten(DBusString *str, int length_to_remove)
Makes a string shorter by the given number of bytes.
Definition: dbus-string.c:780
short events
Events to poll for.
Definition: dbus-sysdeps.h:381
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that&#39;s copied to the d...
Definition: dbus-string.c:1283
dbus_bool_t _dbus_credentials_add_windows_sid(DBusCredentials *credentials, const char *windows_sid)
Add a Windows user SID to the credentials.
dbus_bool_t _dbus_send_credentials_socket(DBusSocket handle, DBusError *error)
Sends a single nul byte with our UNIX credentials as ancillary data.
dbus_bool_t _dbus_close_socket(DBusSocket fd, DBusError *error)
Closes a file descriptor.
#define DBUS_UID_UNSET
an invalid UID used to represent an uninitialized dbus_uid_t field
Definition: dbus-sysdeps.h:115
dbus_bool_t _dbus_delete_file(const DBusString *filename, DBusError *error)
Deletes the given file.
dbus_bool_t _dbus_get_autolaunch_address(const char *scope, DBusString *address, DBusError *error)
Returns the address of a new session bus.
const char * _dbus_error_from_errno(int error_number)
Converts a UNIX errno, or Windows errno or WinSock error value into a DBusError name.
Definition: dbus-sysdeps.c:590
unsigned long dbus_pid_t
A process ID.
Definition: dbus-sysdeps.h:106
Socket interface.
Definition: dbus-sysdeps.h:149
dbus_int32_t _dbus_atomic_dec(DBusAtomic *atomic)
Atomically decrement an integer.
void * dbus_malloc(size_t bytes)
Allocates the given number of bytes, as with standard malloc().
Definition: dbus-memory.c:461
dbus_bool_t _dbus_append_user_from_current_process(DBusString *str)
Append to the string the identity we would like to have when we authenticate, on UNIX this is the cur...
dbus_bool_t _dbus_credentials_are_anonymous(DBusCredentials *credentials)
Checks whether a credentials object contains a user identity.
dbus_bool_t _dbus_get_is_errno_eagain_or_ewouldblock(int e)
See if errno is EAGAIN or EWOULDBLOCK (this has to be done differently for Winsock so is abstracted) ...
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition: dbus-types.h:35
void _dbus_string_init_const(DBusString *str, const char *value)
Initializes a constant string.
Definition: dbus-string.c:190
dbus_bool_t _dbus_make_file_world_readable(const DBusString *filename, DBusError *error)
Makes the file readable by every user in the system.
#define _DBUS_POLLOUT
Writing now will not block.
Definition: dbus-sysdeps.h:390
void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
int _dbus_write_socket_two(DBusSocket fd, const DBusString *buffer1, int start1, int len1, const DBusString *buffer2, int start2, int len2)
Like _dbus_write() but will use writev() if possible to write both buffers in sequence.
DBusSocket _dbus_accept(DBusSocket listen_fd)
Accepts a connection on a listening socket.
void _dbus_print_backtrace(void)
On GNU libc systems, print a crude backtrace to stderr.
dbus_bool_t _dbus_append_keyring_directory_for_credentials(DBusString *directory, DBusCredentials *credentials)
Appends the directory in which a keyring for the given credentials should be stored.
dbus_bool_t _dbus_read_credentials_socket(DBusSocket handle, DBusCredentials *credentials, DBusError *error)
Reads a single byte which must be nul (an error occurs otherwise), and reads unix credentials if avai...
dbus_bool_t _dbus_create_directory(const DBusString *filename, DBusError *error)
Creates a directory; succeeds if the directory is created or already existed.
dbus_bool_t _dbus_delete_directory(const DBusString *filename, DBusError *error)
Removes a directory; Directory must be empty.
Object representing an exception.
Definition: dbus-errors.h:48
void _dbus_get_monotonic_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
int _dbus_listen_tcp_socket(const char *host, const char *port, const char *family, DBusString *retport, DBusSocket **fds_p, DBusError *error)
Creates a socket and binds it to the given path, then listens on the socket.
dbus_bool_t _dbus_string_validate_utf8(const DBusString *str, int start, int len)
Checks that the given range of the string is valid UTF-8.
Definition: dbus-string.c:2555
void _dbus_disable_sigpipe(void)
signal (SIGPIPE, SIG_IGN);
void dbus_set_error(DBusError *error, const char *name, const char *format,...)
Assigns an error name and message to a DBusError.
Definition: dbus-errors.c:354
dbus_int32_t _dbus_atomic_inc(DBusAtomic *atomic)
Atomically increments an integer.
#define _dbus_assert_not_reached(explanation)
Aborts with an error message if called.
void _dbus_flush_caches(void)
Called when the bus daemon is signaled to reload its configuration; any caches should be nuked...
const char * _dbus_get_tmpdir(void)
Gets the temporary files directory by inspecting the environment variables TMPDIR, TMP, and TEMP in that order.
dbus_bool_t _dbus_string_append_byte(DBusString *str, unsigned char byte)
Appends a single byte to the string, returning FALSE if not enough memory.
Definition: dbus-string.c:1157
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init().
Definition: dbus-string.c:259
dbus_bool_t _dbus_credentials_add_from_current_process(DBusCredentials *credentials)
Adds the credentials of the current process to the passed-in credentials object.
#define TRUE
Expands to "1".
DBusPollable fd
File descriptor.
Definition: dbus-sysdeps.h:380
dbus_bool_t _dbus_credentials_add_pid(DBusCredentials *credentials, dbus_pid_t pid)
Add a UNIX process ID to the credentials.
#define DBUS_ERROR_FAILED
A generic error; "something went wrong" - see the error message for more.
#define _dbus_assert(condition)
Aborts with an error message if the condition is false.
void _dbus_exit(int code)
Exit the process, returning the given value.
const char * _dbus_strerror_from_errno(void)
Get error message from errno.
Definition: dbus-sysdeps.c:749
unsigned long _dbus_pid_for_log(void)
The only reason this is separate from _dbus_getpid() is to allow it on Windows for logging but not fo...
DBusSocket _dbus_connect_tcp_socket(const char *host, const char *port, const char *family, DBusError *error)
Creates a socket and connects to a socket at the given host and port.
void dbus_error_init(DBusError *error)
Initializes a DBusError structure.
Definition: dbus-errors.c:188
#define DBUS_ERROR_ACCESS_DENIED
Security restrictions don&#39;t allow doing what you&#39;re trying to do.
#define _DBUS_UNLOCK(name)
Unlocks a global lock.
dbus_uid_t _dbus_getuid(void)
Gets our Unix UID.
dbus_bool_t _dbus_generate_random_bytes(DBusString *str, int n_bytes, DBusError *error)
Generates the given number of random bytes, using the best mechanism we can come up with...
dbus_bool_t _dbus_set_socket_nonblocking(DBusSocket handle, DBusError *error)
Sets a file descriptor to be nonblocking.
#define DBUS_ERROR_NO_MEMORY
There was not enough memory to complete an operation.
dbus_bool_t _dbus_lookup_session_address(dbus_bool_t *supported, DBusString *address, DBusError *error)
Determines the address of the session bus by querying a platform-specific method. ...
#define FALSE
Expands to "0".
dbus_bool_t _dbus_read_local_machine_uuid(DBusGUID *machine_id, dbus_bool_t create_if_not_found, DBusError *error)
Reads the uuid of the machine we&#39;re running on from the dbus configuration.
dbus_bool_t _dbus_sha_compute(const DBusString *data, DBusString *ascii_output)
Computes the ASCII hex-encoded shasum of the given data and appends it to the output string...
Definition: dbus-sha.c:483
void dbus_set_error_const(DBusError *error, const char *name, const char *message)
Assigns an error name and message to a DBusError.
Definition: dbus-errors.c:243
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string.
Definition: dbus-string.c:802
int _dbus_write_socket(DBusSocket fd, const DBusString *buffer, int start, int len)
Thin wrapper around the write() system call that writes a part of a DBusString and handles EINTR for ...
void _dbus_sleep_milliseconds(int milliseconds)
Sleeps the given number of milliseconds.
DBUS_PRIVATE_EXPORT void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log.
int _dbus_printf_string_upper_bound(const char *format, va_list args)
Measure the message length without terminating nul.
#define _DBUS_ZERO(object)
Sets all bits in an object to zero.
const char * _dbus_getenv(const char *varname)
Wrapper for getenv().
Definition: dbus-sysdeps.c:185
#define DBUS_ERROR_INVALID_ARGS
Invalid arguments passed to a method call.
unsigned long dbus_uid_t
A user ID.
Definition: dbus-sysdeps.h:108
int _dbus_poll(DBusPollFD *fds, int n_fds, int timeout_milliseconds)
Wrapper for poll().
short revents
Events that occurred.
Definition: dbus-sysdeps.h:382
#define DBUS_ERROR_LIMITS_EXCEEDED
Some limited resource is exhausted.
void _dbus_string_init_const_len(DBusString *str, const char *value, int len)
Initializes a constant string with a length.
Definition: dbus-string.c:210
#define _DBUS_LOCK(name)
Locks a global lock, initializing it first if necessary.
void _dbus_get_real_time(long *tv_sec, long *tv_usec)
Get current time, as in gettimeofday().
#define _DBUS_POLLERR
Error condition.
Definition: dbus-sysdeps.h:392
dbus_bool_t _dbus_credentials_add_from_user(DBusCredentials *credentials, const DBusString *username)
Adds the credentials corresponding to the given username.