D-Bus  1.12.16
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 (void);
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  default:
328  return DBUS_ERROR_FAILED;
329  }
330 }
331 
332 
333 char*
334 _dbus_win_error_string (int error_number)
335 {
336  char *msg;
337 
338  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
339  FORMAT_MESSAGE_IGNORE_INSERTS |
340  FORMAT_MESSAGE_FROM_SYSTEM,
341  NULL, error_number, 0,
342  (LPSTR) &msg, 0, NULL);
343 
344  if (msg[strlen (msg) - 1] == '\n')
345  msg[strlen (msg) - 1] = '\0';
346  if (msg[strlen (msg) - 1] == '\r')
347  msg[strlen (msg) - 1] = '\0';
348 
349  return msg;
350 }
351 
352 void
353 _dbus_win_free_error_string (char *string)
354 {
355  LocalFree (string);
356 }
357 
378 int
380  DBusString *buffer,
381  int count)
382 {
383  int bytes_read;
384  int start;
385  char *data;
386 
387  _dbus_assert (count >= 0);
388 
389  start = _dbus_string_get_length (buffer);
390 
391  if (!_dbus_string_lengthen (buffer, count))
392  {
393  _dbus_win_set_errno (ENOMEM);
394  return -1;
395  }
396 
397  data = _dbus_string_get_data_len (buffer, start, count);
398 
399  again:
400 
401  _dbus_verbose ("recv: count=%d fd=%Iu\n", count, fd.sock);
402  bytes_read = recv (fd.sock, data, count, 0);
403 
404  if (bytes_read == SOCKET_ERROR)
405  {
406  DBUS_SOCKET_SET_ERRNO();
407  _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
408  bytes_read = -1;
409  }
410  else
411  _dbus_verbose ("recv: = %d\n", bytes_read);
412 
413  if (bytes_read < 0)
414  {
415  if (errno == EINTR)
416  goto again;
417  else
418  {
419  /* put length back (note that this doesn't actually realloc anything) */
420  _dbus_string_set_length (buffer, start);
421  return -1;
422  }
423  }
424  else
425  {
426  /* put length back (doesn't actually realloc) */
427  _dbus_string_set_length (buffer, start + bytes_read);
428 
429 #if 0
430  if (bytes_read > 0)
431  _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
432 #endif
433 
434  return bytes_read;
435  }
436 }
437 
448 int
450  const DBusString *buffer,
451  int start,
452  int len)
453 {
454  const char *data;
455  int bytes_written;
456 
457  data = _dbus_string_get_const_data_len (buffer, start, len);
458 
459  again:
460 
461  _dbus_verbose ("send: len=%d fd=%Iu\n", len, fd.sock);
462  bytes_written = send (fd.sock, data, len, 0);
463 
464  if (bytes_written == SOCKET_ERROR)
465  {
466  DBUS_SOCKET_SET_ERRNO();
467  _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
468  bytes_written = -1;
469  }
470  else
471  _dbus_verbose ("send: = %d\n", bytes_written);
472 
473  if (bytes_written < 0 && errno == EINTR)
474  goto again;
475 
476 #if 0
477  if (bytes_written > 0)
478  _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
479 #endif
480 
481  return bytes_written;
482 }
483 
484 
494  DBusError *error)
495 {
496  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
497 
498  again:
499  if (closesocket (fd.sock) == SOCKET_ERROR)
500  {
501  DBUS_SOCKET_SET_ERRNO ();
502 
503  if (errno == EINTR)
504  goto again;
505 
506  dbus_set_error (error, _dbus_error_from_errno (errno),
507  "Could not close socket: socket=%Iu, , %s",
508  fd.sock, _dbus_strerror_from_errno ());
509  return FALSE;
510  }
511  _dbus_verbose ("socket=%Iu, \n", fd.sock);
512 
513  return TRUE;
514 }
515 
523 static void
524 _dbus_win_handle_set_close_on_exec (HANDLE handle)
525 {
526  if ( !SetHandleInformation( (HANDLE) handle,
527  HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
528  0 /*disable both flags*/ ) )
529  {
530  _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
531  }
532 }
533 
543  DBusError *error)
544 {
545  u_long one = 1;
546 
547  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
548 
549  if (ioctlsocket (handle.sock, FIONBIO, &one) == SOCKET_ERROR)
550  {
551  DBUS_SOCKET_SET_ERRNO ();
552  dbus_set_error (error, _dbus_error_from_errno (errno),
553  "Failed to set socket %Iu to nonblocking: %s",
554  handle.sock, _dbus_strerror_from_errno ());
555  return FALSE;
556  }
557 
558  return TRUE;
559 }
560 
561 
582 int
584  const DBusString *buffer1,
585  int start1,
586  int len1,
587  const DBusString *buffer2,
588  int start2,
589  int len2)
590 {
591  WSABUF vectors[2];
592  const char *data1;
593  const char *data2;
594  int rc;
595  DWORD bytes_written;
596 
597  _dbus_assert (buffer1 != NULL);
598  _dbus_assert (start1 >= 0);
599  _dbus_assert (start2 >= 0);
600  _dbus_assert (len1 >= 0);
601  _dbus_assert (len2 >= 0);
602 
603 
604  data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
605 
606  if (buffer2 != NULL)
607  data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
608  else
609  {
610  data2 = NULL;
611  start2 = 0;
612  len2 = 0;
613  }
614 
615  vectors[0].buf = (char*) data1;
616  vectors[0].len = len1;
617  vectors[1].buf = (char*) data2;
618  vectors[1].len = len2;
619 
620  again:
621 
622  _dbus_verbose ("WSASend: len1+2=%d+%d fd=%Iu\n", len1, len2, fd.sock);
623  rc = WSASend (fd.sock,
624  vectors,
625  data2 ? 2 : 1,
626  &bytes_written,
627  0,
628  NULL,
629  NULL);
630 
631  if (rc == SOCKET_ERROR)
632  {
633  DBUS_SOCKET_SET_ERRNO ();
634  _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
635  bytes_written = (DWORD) -1;
636  }
637  else
638  _dbus_verbose ("WSASend: = %ld\n", bytes_written);
639 
640  if (bytes_written == (DWORD) -1 && errno == EINTR)
641  goto again;
642 
643  return bytes_written;
644 }
645 
646 #if 0
647 
656 int
657 _dbus_connect_named_pipe (const char *path,
658  DBusError *error)
659 {
660  _dbus_assert_not_reached ("not implemented");
661 }
662 
663 #endif
664 
669 _dbus_win_startup_winsock (void)
670 {
671  /* Straight from MSDN, deuglified */
672 
673  /* Protected by _DBUS_LOCK_sysdeps */
674  static dbus_bool_t beenhere = FALSE;
675 
676  WORD wVersionRequested;
677  WSADATA wsaData;
678  int err;
679 
680  if (!_DBUS_LOCK (sysdeps))
681  return FALSE;
682 
683  if (beenhere)
684  goto out;
685 
686  wVersionRequested = MAKEWORD (2, 0);
687 
688  err = WSAStartup (wVersionRequested, &wsaData);
689  if (err != 0)
690  {
691  _dbus_assert_not_reached ("Could not initialize WinSock");
692  _dbus_abort ();
693  }
694 
695  /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
696  * supports versions greater than 2.0 in addition to 2.0, it will
697  * still return 2.0 in wVersion since that is the version we
698  * requested.
699  */
700  if (LOBYTE (wsaData.wVersion) != 2 ||
701  HIBYTE (wsaData.wVersion) != 0)
702  {
703  _dbus_assert_not_reached ("No usable WinSock found");
704  _dbus_abort ();
705  }
706 
707  beenhere = TRUE;
708 
709 out:
710  _DBUS_UNLOCK (sysdeps);
711  return TRUE;
712 }
713 
714 
715 
716 
717 
718 
719 
720 
721 
722 /************************************************************************
723 
724  UTF / string code
725 
726  ************************************************************************/
727 
731 int _dbus_printf_string_upper_bound (const char *format,
732  va_list args)
733 {
734  /* MSVCRT's vsnprintf semantics are a bit different */
735  char buf[1024];
736  int bufsize;
737  int len;
738  va_list args_copy;
739 
740  bufsize = sizeof (buf);
741  DBUS_VA_COPY (args_copy, args);
742  len = _vsnprintf (buf, bufsize - 1, format, args_copy);
743  va_end (args_copy);
744 
745  while (len == -1) /* try again */
746  {
747  char *p;
748 
749  bufsize *= 2;
750 
751  p = malloc (bufsize);
752 
753  if (p == NULL)
754  return -1;
755 
756  DBUS_VA_COPY (args_copy, args);
757  len = _vsnprintf (p, bufsize - 1, format, args_copy);
758  va_end (args_copy);
759  free (p);
760  }
761 
762  return len;
763 }
764 
765 
773 wchar_t *
774 _dbus_win_utf8_to_utf16 (const char *str,
775  DBusError *error)
776 {
777  DBusString s;
778  int n;
779  wchar_t *retval;
780 
781  _dbus_string_init_const (&s, str);
782 
784  {
785  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
786  return NULL;
787  }
788 
789  n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
790 
791  if (n == 0)
792  {
793  _dbus_win_set_error_from_win_error (error, GetLastError ());
794  return NULL;
795  }
796 
797  retval = dbus_new (wchar_t, n);
798 
799  if (!retval)
800  {
801  _DBUS_SET_OOM (error);
802  return NULL;
803  }
804 
805  if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
806  {
807  dbus_free (retval);
808  dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
809  return NULL;
810  }
811 
812  return retval;
813 }
814 
822 char *
823 _dbus_win_utf16_to_utf8 (const wchar_t *str,
824  DBusError *error)
825 {
826  int n;
827  char *retval;
828 
829  n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
830 
831  if (n == 0)
832  {
833  _dbus_win_set_error_from_win_error (error, GetLastError ());
834  return NULL;
835  }
836 
837  retval = dbus_malloc (n);
838 
839  if (!retval)
840  {
841  _DBUS_SET_OOM (error);
842  return NULL;
843  }
844 
845  if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
846  {
847  dbus_free (retval);
848  dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
849  return NULL;
850  }
851 
852  return retval;
853 }
854 
855 
856 
857 
858 
859 
860 /************************************************************************
861 
862 
863  ************************************************************************/
864 
866 _dbus_win_account_to_sid (const wchar_t *waccount,
867  void **ppsid,
868  DBusError *error)
869 {
870  dbus_bool_t retval = FALSE;
871  DWORD sid_length, wdomain_length;
872  SID_NAME_USE use;
873  wchar_t *wdomain;
874 
875  *ppsid = NULL;
876 
877  sid_length = 0;
878  wdomain_length = 0;
879  if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
880  NULL, &wdomain_length, &use) &&
881  GetLastError () != ERROR_INSUFFICIENT_BUFFER)
882  {
883  _dbus_win_set_error_from_win_error (error, GetLastError ());
884  return FALSE;
885  }
886 
887  *ppsid = dbus_malloc (sid_length);
888  if (!*ppsid)
889  {
890  _DBUS_SET_OOM (error);
891  return FALSE;
892  }
893 
894  wdomain = dbus_new (wchar_t, wdomain_length);
895  if (!wdomain)
896  {
897  _DBUS_SET_OOM (error);
898  goto out1;
899  }
900 
901  if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
902  wdomain, &wdomain_length, &use))
903  {
904  _dbus_win_set_error_from_win_error (error, GetLastError ());
905  goto out2;
906  }
907 
908  if (!IsValidSid ((PSID) *ppsid))
909  {
910  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
911  goto out2;
912  }
913 
914  retval = TRUE;
915 
916 out2:
917  dbus_free (wdomain);
918 out1:
919  if (!retval)
920  {
921  dbus_free (*ppsid);
922  *ppsid = NULL;
923  }
924 
925  return retval;
926 }
927 
937 unsigned long
939 {
940  return _dbus_getpid ();
941 }
942 
943 #ifndef DBUS_WINCE
944 
945 static BOOL
946 is_winxp_sp3_or_lower (void)
947 {
948  OSVERSIONINFOEX osvi;
949  DWORDLONG dwlConditionMask = 0;
950  int op=VER_LESS_EQUAL;
951 
952  // Initialize the OSVERSIONINFOEX structure.
953 
954  ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
955  osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
956  osvi.dwMajorVersion = 5;
957  osvi.dwMinorVersion = 1;
958  osvi.wServicePackMajor = 3;
959  osvi.wServicePackMinor = 0;
960 
961  // Initialize the condition mask.
962 
963  VER_SET_CONDITION( dwlConditionMask, VER_MAJORVERSION, op );
964  VER_SET_CONDITION( dwlConditionMask, VER_MINORVERSION, op );
965  VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMAJOR, op );
966  VER_SET_CONDITION( dwlConditionMask, VER_SERVICEPACKMINOR, op );
967 
968  // Perform the test.
969 
970  return VerifyVersionInfo(
971  &osvi,
972  VER_MAJORVERSION | VER_MINORVERSION |
973  VER_SERVICEPACKMAJOR | VER_SERVICEPACKMINOR,
974  dwlConditionMask);
975 }
976 
983 _dbus_getsid(char **sid, dbus_pid_t process_id)
984 {
985  HANDLE process_token = INVALID_HANDLE_VALUE;
986  TOKEN_USER *token_user = NULL;
987  DWORD n;
988  PSID psid;
989  int retval = FALSE;
990 
991  HANDLE process_handle;
992  if (process_id == 0)
993  process_handle = GetCurrentProcess();
994  else if (is_winxp_sp3_or_lower())
995  process_handle = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, process_id);
996  else
997  process_handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, FALSE, process_id);
998 
999  if (!OpenProcessToken (process_handle, TOKEN_QUERY, &process_token))
1000  {
1001  _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
1002  goto failed;
1003  }
1004  if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
1005  && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
1006  || (token_user = alloca (n)) == NULL
1007  || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
1008  {
1009  _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
1010  goto failed;
1011  }
1012  psid = token_user->User.Sid;
1013  if (!IsValidSid (psid))
1014  {
1015  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1016  goto failed;
1017  }
1018  if (!ConvertSidToStringSidA (psid, sid))
1019  {
1020  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
1021  goto failed;
1022  }
1023 //okay:
1024  retval = TRUE;
1025 
1026 failed:
1027  CloseHandle (process_handle);
1028  if (process_token != INVALID_HANDLE_VALUE)
1029  CloseHandle (process_token);
1030 
1031  _dbus_verbose("_dbus_getsid() got '%s' and returns %d\n", *sid, retval);
1032  return retval;
1033 }
1034 #endif
1035 
1036 /************************************************************************
1037 
1038  pipes
1039 
1040  ************************************************************************/
1041 
1056  DBusSocket *fd2,
1057  dbus_bool_t blocking,
1058  DBusError *error)
1059 {
1060  SOCKET temp, socket1 = -1, socket2 = -1;
1061  struct sockaddr_in saddr;
1062  int len;
1063  u_long arg;
1064 
1065  if (!_dbus_win_startup_winsock ())
1066  {
1067  _DBUS_SET_OOM (error);
1068  return FALSE;
1069  }
1070 
1071  temp = socket (AF_INET, SOCK_STREAM, 0);
1072  if (temp == INVALID_SOCKET)
1073  {
1074  DBUS_SOCKET_SET_ERRNO ();
1075  goto out0;
1076  }
1077 
1078  _DBUS_ZERO (saddr);
1079  saddr.sin_family = AF_INET;
1080  saddr.sin_port = 0;
1081  saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
1082 
1083  if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
1084  {
1085  DBUS_SOCKET_SET_ERRNO ();
1086  goto out0;
1087  }
1088 
1089  if (listen (temp, 1) == SOCKET_ERROR)
1090  {
1091  DBUS_SOCKET_SET_ERRNO ();
1092  goto out0;
1093  }
1094 
1095  len = sizeof (saddr);
1096  if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
1097  {
1098  DBUS_SOCKET_SET_ERRNO ();
1099  goto out0;
1100  }
1101 
1102  socket1 = socket (AF_INET, SOCK_STREAM, 0);
1103  if (socket1 == INVALID_SOCKET)
1104  {
1105  DBUS_SOCKET_SET_ERRNO ();
1106  goto out0;
1107  }
1108 
1109  if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
1110  {
1111  DBUS_SOCKET_SET_ERRNO ();
1112  goto out1;
1113  }
1114 
1115  socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
1116  if (socket2 == INVALID_SOCKET)
1117  {
1118  DBUS_SOCKET_SET_ERRNO ();
1119  goto out1;
1120  }
1121 
1122  if (!blocking)
1123  {
1124  arg = 1;
1125  if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
1126  {
1127  DBUS_SOCKET_SET_ERRNO ();
1128  goto out2;
1129  }
1130 
1131  arg = 1;
1132  if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
1133  {
1134  DBUS_SOCKET_SET_ERRNO ();
1135  goto out2;
1136  }
1137  }
1138 
1139  fd1->sock = socket1;
1140  fd2->sock = socket2;
1141 
1142  _dbus_verbose ("full-duplex pipe %Iu:%Iu <-> %Iu:%Iu\n",
1143  fd1->sock, socket1, fd2->sock, socket2);
1144 
1145  closesocket (temp);
1146 
1147  return TRUE;
1148 
1149 out2:
1150  closesocket (socket2);
1151 out1:
1152  closesocket (socket1);
1153 out0:
1154  closesocket (temp);
1155 
1156  dbus_set_error (error, _dbus_error_from_errno (errno),
1157  "Could not setup socket pair: %s",
1159 
1160  return FALSE;
1161 }
1162 
1171 int
1173  int n_fds,
1174  int timeout_milliseconds)
1175 {
1176 #define USE_CHRIS_IMPL 0
1177 
1178 #if USE_CHRIS_IMPL
1179 
1180 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1181  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1182  char *msgp;
1183 
1184  int ret = 0;
1185  int i;
1186  struct timeval tv;
1187  int ready;
1188 
1189 #define DBUS_STACK_WSAEVENTS 256
1190  WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
1191  WSAEVENT *pEvents = NULL;
1192  if (n_fds > DBUS_STACK_WSAEVENTS)
1193  pEvents = calloc(sizeof(WSAEVENT), n_fds);
1194  else
1195  pEvents = eventsOnStack;
1196 
1197 
1198 #ifdef DBUS_ENABLE_VERBOSE_MODE
1199  msgp = msg;
1200  msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
1201  for (i = 0; i < n_fds; i++)
1202  {
1203  DBusPollFD *fdp = &fds[i];
1204 
1205 
1206  if (fdp->events & _DBUS_POLLIN)
1207  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1208 
1209  if (fdp->events & _DBUS_POLLOUT)
1210  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1211 
1212  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1213 
1214  // FIXME: more robust code for long msg
1215  // create on heap when msg[] becomes too small
1216  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1217  {
1218  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1219  }
1220  }
1221 
1222  msgp += sprintf (msgp, "\n");
1223  _dbus_verbose ("%s",msg);
1224 #endif
1225  for (i = 0; i < n_fds; i++)
1226  {
1227  DBusPollFD *fdp = &fds[i];
1228  WSAEVENT ev;
1229  long lNetworkEvents = FD_OOB;
1230 
1231  ev = WSACreateEvent();
1232 
1233  if (fdp->events & _DBUS_POLLIN)
1234  lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
1235 
1236  if (fdp->events & _DBUS_POLLOUT)
1237  lNetworkEvents |= FD_WRITE | FD_CONNECT;
1238 
1239  WSAEventSelect(fdp->fd.sock, ev, lNetworkEvents);
1240 
1241  pEvents[i] = ev;
1242  }
1243 
1244 
1245  ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
1246 
1247  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1248  {
1249  DBUS_SOCKET_SET_ERRNO ();
1250  if (errno != WSAEWOULDBLOCK)
1251  _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1252  ret = -1;
1253  }
1254  else if (ready == WSA_WAIT_TIMEOUT)
1255  {
1256  _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1257  ret = 0;
1258  }
1259  else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1260  {
1261  msgp = msg;
1262  msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1263 
1264  for (i = 0; i < n_fds; i++)
1265  {
1266  DBusPollFD *fdp = &fds[i];
1267  WSANETWORKEVENTS ne;
1268 
1269  fdp->revents = 0;
1270 
1271  WSAEnumNetworkEvents(fdp->fd.sock, pEvents[i], &ne);
1272 
1273  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1274  fdp->revents |= _DBUS_POLLIN;
1275 
1276  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1277  fdp->revents |= _DBUS_POLLOUT;
1278 
1279  if (ne.lNetworkEvents & (FD_OOB))
1280  fdp->revents |= _DBUS_POLLERR;
1281 
1282  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1283  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1284 
1285  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1286  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1287 
1288  if (ne.lNetworkEvents & (FD_OOB))
1289  msgp += sprintf (msgp, "E:%Iu ", fdp->fd.sock);
1290 
1291  msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1292 
1293  if(ne.lNetworkEvents)
1294  ret++;
1295 
1296  WSAEventSelect(fdp->fd.sock, pEvents[i], 0);
1297  }
1298 
1299  msgp += sprintf (msgp, "\n");
1300  _dbus_verbose ("%s",msg);
1301  }
1302  else
1303  {
1304  _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1305  ret = -1;
1306  }
1307 
1308  for(i = 0; i < n_fds; i++)
1309  {
1310  WSACloseEvent(pEvents[i]);
1311  }
1312 
1313  if (n_fds > DBUS_STACK_WSAEVENTS)
1314  free(pEvents);
1315 
1316  return ret;
1317 
1318 #else /* USE_CHRIS_IMPL */
1319 
1320 #ifdef DBUS_ENABLE_VERBOSE_MODE
1321 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1322  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1323  char *msgp;
1324 #endif
1325 
1326  fd_set read_set, write_set, err_set;
1327  SOCKET max_fd = 0;
1328  int i;
1329  struct timeval tv;
1330  int ready;
1331 
1332  FD_ZERO (&read_set);
1333  FD_ZERO (&write_set);
1334  FD_ZERO (&err_set);
1335 
1336 
1337 #ifdef DBUS_ENABLE_VERBOSE_MODE
1338  msgp = msg;
1339  msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1340  for (i = 0; i < n_fds; i++)
1341  {
1342  DBusPollFD *fdp = &fds[i];
1343 
1344 
1345  if (fdp->events & _DBUS_POLLIN)
1346  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1347 
1348  if (fdp->events & _DBUS_POLLOUT)
1349  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1350 
1351  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1352 
1353  // FIXME: more robust code for long msg
1354  // create on heap when msg[] becomes too small
1355  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1356  {
1357  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1358  }
1359  }
1360 
1361  msgp += sprintf (msgp, "\n");
1362  _dbus_verbose ("%s",msg);
1363 #endif
1364  for (i = 0; i < n_fds; i++)
1365  {
1366  DBusPollFD *fdp = &fds[i];
1367 
1368  if (fdp->events & _DBUS_POLLIN)
1369  FD_SET (fdp->fd.sock, &read_set);
1370 
1371  if (fdp->events & _DBUS_POLLOUT)
1372  FD_SET (fdp->fd.sock, &write_set);
1373 
1374  FD_SET (fdp->fd.sock, &err_set);
1375 
1376  max_fd = MAX (max_fd, fdp->fd.sock);
1377  }
1378 
1379  // Avoid random lockups with send(), for lack of a better solution so far
1380  tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1381  tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1382 
1383  ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1384 
1385  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1386  {
1387  DBUS_SOCKET_SET_ERRNO ();
1388  if (errno != WSAEWOULDBLOCK)
1389  _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1390  }
1391  else if (ready == 0)
1392  _dbus_verbose ("select: = 0\n");
1393  else
1394  if (ready > 0)
1395  {
1396 #ifdef DBUS_ENABLE_VERBOSE_MODE
1397  msgp = msg;
1398  msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1399 
1400  for (i = 0; i < n_fds; i++)
1401  {
1402  DBusPollFD *fdp = &fds[i];
1403 
1404  if (FD_ISSET (fdp->fd.sock, &read_set))
1405  msgp += sprintf (msgp, "R:%Iu ", fdp->fd.sock);
1406 
1407  if (FD_ISSET (fdp->fd.sock, &write_set))
1408  msgp += sprintf (msgp, "W:%Iu ", fdp->fd.sock);
1409 
1410  if (FD_ISSET (fdp->fd.sock, &err_set))
1411  msgp += sprintf (msgp, "E:%Iu\n\t", fdp->fd.sock);
1412  }
1413  msgp += sprintf (msgp, "\n");
1414  _dbus_verbose ("%s",msg);
1415 #endif
1416 
1417  for (i = 0; i < n_fds; i++)
1418  {
1419  DBusPollFD *fdp = &fds[i];
1420 
1421  fdp->revents = 0;
1422 
1423  if (FD_ISSET (fdp->fd.sock, &read_set))
1424  fdp->revents |= _DBUS_POLLIN;
1425 
1426  if (FD_ISSET (fdp->fd.sock, &write_set))
1427  fdp->revents |= _DBUS_POLLOUT;
1428 
1429  if (FD_ISSET (fdp->fd.sock, &err_set))
1430  fdp->revents |= _DBUS_POLLERR;
1431  }
1432  }
1433  return ready;
1434 #endif /* USE_CHRIS_IMPL */
1435 }
1436 
1437 
1438 
1439 
1440 /******************************************************************************
1441 
1442 Original CVS version of dbus-sysdeps.c
1443 
1444 ******************************************************************************/
1445 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1446 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1447  *
1448  * Copyright (C) 2002, 2003 Red Hat, Inc.
1449  * Copyright (C) 2003 CodeFactory AB
1450  * Copyright (C) 2005 Novell, Inc.
1451  *
1452  * Licensed under the Academic Free License version 2.1
1453  *
1454  * This program is free software; you can redistribute it and/or modify
1455  * it under the terms of the GNU General Public License as published by
1456  * the Free Software Foundation; either version 2 of the License, or
1457  * (at your option) any later version.
1458  *
1459  * This program is distributed in the hope that it will be useful,
1460  * but WITHOUT ANY WARRANTY; without even the implied warranty of
1461  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1462  * GNU General Public License for more details.
1463  *
1464  * You should have received a copy of the GNU General Public License
1465  * along with this program; if not, write to the Free Software
1466  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1467  *
1468  */
1469 
1470 
1476 void
1477 _dbus_exit (int code)
1478 {
1479  _exit (code);
1480 }
1481 
1493 DBusSocket
1494 _dbus_connect_tcp_socket (const char *host,
1495  const char *port,
1496  const char *family,
1497  DBusError *error)
1498 {
1499  return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1500 }
1501 
1502 DBusSocket
1503 _dbus_connect_tcp_socket_with_nonce (const char *host,
1504  const char *port,
1505  const char *family,
1506  const char *noncefile,
1507  DBusError *error)
1508 {
1509  DBusSocket fd = DBUS_SOCKET_INIT;
1510  int res;
1511  struct addrinfo hints;
1512  struct addrinfo *ai, *tmp;
1513 
1514  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1515 
1516  if (!_dbus_win_startup_winsock ())
1517  {
1518  _DBUS_SET_OOM (error);
1519  return _dbus_socket_get_invalid ();
1520  }
1521 
1522  _DBUS_ZERO (hints);
1523 
1524  if (!family)
1525  hints.ai_family = AF_UNSPEC;
1526  else if (!strcmp(family, "ipv4"))
1527  hints.ai_family = AF_INET;
1528  else if (!strcmp(family, "ipv6"))
1529  hints.ai_family = AF_INET6;
1530  else
1531  {
1532  dbus_set_error (error,
1534  "Unknown address family %s", family);
1535  return _dbus_socket_get_invalid ();
1536  }
1537  hints.ai_protocol = IPPROTO_TCP;
1538  hints.ai_socktype = SOCK_STREAM;
1539 #ifdef AI_ADDRCONFIG
1540  hints.ai_flags = AI_ADDRCONFIG;
1541 #else
1542  hints.ai_flags = 0;
1543 #endif
1544 
1545  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1546  {
1547  dbus_set_error (error,
1548  _dbus_error_from_errno (res),
1549  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1550  host, port, _dbus_strerror(res), res);
1551  return _dbus_socket_get_invalid ();
1552  }
1553 
1554  tmp = ai;
1555  while (tmp)
1556  {
1557  if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1558  {
1559  DBUS_SOCKET_SET_ERRNO ();
1560  dbus_set_error (error,
1561  _dbus_error_from_errno (errno),
1562  "Failed to open socket: %s",
1564  freeaddrinfo(ai);
1565  return _dbus_socket_get_invalid ();
1566  }
1567  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1568 
1569  if (connect (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1570  {
1571  DBUS_SOCKET_SET_ERRNO ();
1572  closesocket(fd.sock);
1573  fd.sock = INVALID_SOCKET;
1574  tmp = tmp->ai_next;
1575  continue;
1576  }
1577 
1578  break;
1579  }
1580  freeaddrinfo(ai);
1581 
1582  if (!_dbus_socket_is_valid (fd))
1583  {
1584  dbus_set_error (error,
1585  _dbus_error_from_errno (errno),
1586  "Failed to connect to socket \"%s:%s\" %s",
1587  host, port, _dbus_strerror_from_errno ());
1588  return _dbus_socket_get_invalid ();
1589  }
1590 
1591  if (noncefile != NULL)
1592  {
1593  DBusString noncefileStr;
1594  dbus_bool_t ret;
1595  if (!_dbus_string_init (&noncefileStr) ||
1596  !_dbus_string_append(&noncefileStr, noncefile))
1597  {
1598  closesocket (fd.sock);
1600  return _dbus_socket_get_invalid ();
1601  }
1602 
1603  ret = _dbus_send_nonce (fd, &noncefileStr, error);
1604 
1605  _dbus_string_free (&noncefileStr);
1606 
1607  if (!ret)
1608  {
1609  closesocket (fd.sock);
1610  return _dbus_socket_get_invalid ();
1611  }
1612  }
1613 
1614  /* Every SOCKET is also a HANDLE. */
1615  _dbus_win_handle_set_close_on_exec ((HANDLE) fd.sock);
1616 
1617  if (!_dbus_set_socket_nonblocking (fd, error))
1618  {
1619  closesocket (fd.sock);
1620  return _dbus_socket_get_invalid ();
1621  }
1622 
1623  return fd;
1624 }
1625 
1641 int
1642 _dbus_listen_tcp_socket (const char *host,
1643  const char *port,
1644  const char *family,
1645  DBusString *retport,
1646  DBusSocket **fds_p,
1647  DBusError *error)
1648 {
1649  DBusSocket *listen_fd = NULL;
1650  int nlisten_fd = 0, res, i, port_num = -1;
1651  struct addrinfo hints;
1652  struct addrinfo *ai, *tmp;
1653 
1654  // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1655  //That's required for family == IPv6(which is the default on Vista if family is not given)
1656  //So we use our own union instead of sockaddr_gen:
1657 
1658  typedef union {
1659  struct sockaddr Address;
1660  struct sockaddr_in AddressIn;
1661  struct sockaddr_in6 AddressIn6;
1662  } mysockaddr_gen;
1663 
1664  *fds_p = NULL;
1665  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1666 
1667  if (!_dbus_win_startup_winsock ())
1668  {
1669  _DBUS_SET_OOM (error);
1670  return -1;
1671  }
1672 
1673  _DBUS_ZERO (hints);
1674 
1675  if (!family)
1676  hints.ai_family = AF_INET;
1677  else if (!strcmp(family, "ipv4"))
1678  hints.ai_family = AF_INET;
1679  else if (!strcmp(family, "ipv6"))
1680  hints.ai_family = AF_INET6;
1681  else
1682  {
1683  dbus_set_error (error,
1685  "Unknown address family %s", family);
1686  return -1;
1687  }
1688 
1689  hints.ai_protocol = IPPROTO_TCP;
1690  hints.ai_socktype = SOCK_STREAM;
1691 #ifdef AI_ADDRCONFIG
1692  hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1693 #else
1694  hints.ai_flags = AI_PASSIVE;
1695 #endif
1696 
1697  redo_lookup_with_port:
1698  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1699  {
1700  dbus_set_error (error,
1701  _dbus_error_from_errno (res),
1702  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1703  host ? host : "*", port, _dbus_strerror(res), res);
1704  return -1;
1705  }
1706 
1707  tmp = ai;
1708  while (tmp)
1709  {
1710  DBusSocket fd = DBUS_SOCKET_INIT, *newlisten_fd;
1711  if ((fd.sock = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1712  {
1713  DBUS_SOCKET_SET_ERRNO ();
1714  dbus_set_error (error,
1715  _dbus_error_from_errno (errno),
1716  "Failed to open socket: %s",
1718  goto failed;
1719  }
1720  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1721 
1722  if (bind (fd.sock, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1723  {
1724  DBUS_SOCKET_SET_ERRNO ();
1725  closesocket (fd.sock);
1726  if (errno == WSAEADDRINUSE)
1727  {
1728  /* Calling this function with port=0 tries to
1729  * bind the same port twice, so we should
1730  * ignore the second bind.
1731  */
1732  tmp = tmp->ai_next;
1733  continue;
1734  }
1735  dbus_set_error (error, _dbus_error_from_errno (errno),
1736  "Failed to bind socket \"%s:%s\": %s",
1737  host ? host : "*", port, _dbus_strerror_from_errno ());
1738  goto failed;
1739  }
1740 
1741  if (listen (fd.sock, 30 /* backlog */) == SOCKET_ERROR)
1742  {
1743  DBUS_SOCKET_SET_ERRNO ();
1744  dbus_set_error (error, _dbus_error_from_errno (errno),
1745  "Failed to listen on socket \"%s:%s\": %s",
1746  host ? host : "*", port, _dbus_strerror_from_errno ());
1747  closesocket (fd.sock);
1748  goto failed;
1749  }
1750 
1751  newlisten_fd = dbus_realloc(listen_fd, sizeof(DBusSocket)*(nlisten_fd+1));
1752  if (!newlisten_fd)
1753  {
1754  closesocket (fd.sock);
1756  "Failed to allocate file handle array");
1757  goto failed;
1758  }
1759  listen_fd = newlisten_fd;
1760  listen_fd[nlisten_fd] = fd;
1761  nlisten_fd++;
1762 
1763  if (!_dbus_string_get_length(retport))
1764  {
1765  /* If the user didn't specify a port, or used 0, then
1766  the kernel chooses a port. After the first address
1767  is bound to, we need to force all remaining addresses
1768  to use the same port */
1769  if (!port || !strcmp(port, "0"))
1770  {
1771  mysockaddr_gen addr;
1772  socklen_t addrlen = sizeof(addr);
1773  char portbuf[NI_MAXSERV];
1774 
1775  if (getsockname(fd.sock, &addr.Address, &addrlen) == SOCKET_ERROR ||
1776  (res = getnameinfo (&addr.Address, addrlen, NULL, 0,
1777  portbuf, sizeof(portbuf),
1778  NI_NUMERICSERV)) != 0)
1779  {
1780  DBUS_SOCKET_SET_ERRNO ();
1781  dbus_set_error (error, _dbus_error_from_errno (errno),
1782  "Failed to resolve port \"%s:%s\": %s",
1783  host ? host : "*", port, _dbus_strerror_from_errno());
1784  goto failed;
1785  }
1786  if (!_dbus_string_append(retport, portbuf))
1787  {
1789  goto failed;
1790  }
1791 
1792  /* Release current address list & redo lookup */
1793  port = _dbus_string_get_const_data(retport);
1794  freeaddrinfo(ai);
1795  goto redo_lookup_with_port;
1796  }
1797  else
1798  {
1799  if (!_dbus_string_append(retport, port))
1800  {
1802  goto failed;
1803  }
1804  }
1805  }
1806 
1807  tmp = tmp->ai_next;
1808  }
1809  freeaddrinfo(ai);
1810  ai = NULL;
1811 
1812  if (!nlisten_fd)
1813  {
1814  _dbus_win_set_errno (WSAEADDRINUSE);
1815  dbus_set_error (error, _dbus_error_from_errno (errno),
1816  "Failed to bind socket \"%s:%s\": %s",
1817  host ? host : "*", port, _dbus_strerror_from_errno ());
1818  return -1;
1819  }
1820 
1821  sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1822 
1823  for (i = 0 ; i < nlisten_fd ; i++)
1824  {
1825  _dbus_win_handle_set_close_on_exec ((HANDLE) listen_fd[i].sock);
1826  if (!_dbus_set_socket_nonblocking (listen_fd[i], error))
1827  {
1828  goto failed;
1829  }
1830  }
1831 
1832  *fds_p = listen_fd;
1833 
1834  return nlisten_fd;
1835 
1836  failed:
1837  if (ai)
1838  freeaddrinfo(ai);
1839  for (i = 0 ; i < nlisten_fd ; i++)
1840  closesocket (listen_fd[i].sock);
1841  dbus_free(listen_fd);
1842  return -1;
1843 }
1844 
1845 
1853 DBusSocket
1855 {
1856  DBusSocket client_fd;
1857 
1858  retry:
1859  client_fd.sock = accept (listen_fd.sock, NULL, NULL);
1860 
1861  if (!_dbus_socket_is_valid (client_fd))
1862  {
1863  DBUS_SOCKET_SET_ERRNO ();
1864  if (errno == EINTR)
1865  goto retry;
1866  }
1867 
1868  _dbus_verbose ("client fd %Iu accepted\n", client_fd.sock);
1869 
1870  return client_fd;
1871 }
1872 
1873 
1874 
1875 
1878  DBusError *error)
1879 {
1880 /* FIXME: for the session bus credentials shouldn't matter (?), but
1881  * for the system bus they are presumably essential. A rough outline
1882  * of a way to implement the credential transfer would be this:
1883  *
1884  * client waits to *read* a byte.
1885  *
1886  * server creates a named pipe with a random name, sends a byte
1887  * contining its length, and its name.
1888  *
1889  * client reads the name, connects to it (using Win32 API).
1890  *
1891  * server waits for connection to the named pipe, then calls
1892  * ImpersonateNamedPipeClient(), notes its now-current credentials,
1893  * calls RevertToSelf(), closes its handles to the named pipe, and
1894  * is done. (Maybe there is some other way to get the SID of a named
1895  * pipe client without having to use impersonation?)
1896  *
1897  * client closes its handles and is done.
1898  *
1899  * Ralf: Why not sending credentials over the given this connection ?
1900  * Using named pipes makes it impossible to be connected from a unix client.
1901  *
1902  */
1903  int bytes_written;
1904  DBusString buf;
1905 
1906  _dbus_string_init_const_len (&buf, "\0", 1);
1907 again:
1908  bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1909 
1910  if (bytes_written < 0 && errno == EINTR)
1911  goto again;
1912 
1913  if (bytes_written < 0)
1914  {
1915  dbus_set_error (error, _dbus_error_from_errno (errno),
1916  "Failed to write credentials byte: %s",
1918  return FALSE;
1919  }
1920  else if (bytes_written == 0)
1921  {
1923  "wrote zero bytes writing credentials byte");
1924  return FALSE;
1925  }
1926  else
1927  {
1928  _dbus_assert (bytes_written == 1);
1929  _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1930  return TRUE;
1931  }
1932  return TRUE;
1933 }
1934 
1955  DBusCredentials *credentials,
1956  DBusError *error)
1957 {
1958  int bytes_read = 0;
1959  DBusString buf;
1960 
1961  char *sid = NULL;
1962  dbus_pid_t pid;
1963  int retval = FALSE;
1964 
1965  // could fail due too OOM
1966  if (_dbus_string_init (&buf))
1967  {
1968  bytes_read = _dbus_read_socket (handle, &buf, 1 );
1969 
1970  if (bytes_read > 0)
1971  _dbus_verbose ("got one zero byte from server\n");
1972 
1973  _dbus_string_free (&buf);
1974  }
1975 
1976  pid = _dbus_get_peer_pid_from_tcp_handle (handle.sock);
1977  if (pid == 0)
1978  return TRUE;
1979 
1980  _dbus_credentials_add_pid (credentials, pid);
1981 
1982  if (_dbus_getsid (&sid, pid))
1983  {
1984  if (!_dbus_credentials_add_windows_sid (credentials, sid))
1985  goto out;
1986  }
1987 
1988  retval = TRUE;
1989 
1990 out:
1991  if (sid)
1992  LocalFree (sid);
1993 
1994  return retval;
1995 }
1996 
2007 {
2008  /* TODO */
2009  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2010  return TRUE;
2011 }
2012 
2013 
2026  const DBusString *next_component)
2027 {
2028  dbus_bool_t dir_ends_in_slash;
2029  dbus_bool_t file_starts_with_slash;
2030 
2031  if (_dbus_string_get_length (dir) == 0 ||
2032  _dbus_string_get_length (next_component) == 0)
2033  return TRUE;
2034 
2035  dir_ends_in_slash =
2036  ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
2037  '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
2038 
2039  file_starts_with_slash =
2040  ('/' == _dbus_string_get_byte (next_component, 0) ||
2041  '\\' == _dbus_string_get_byte (next_component, 0));
2042 
2043  if (dir_ends_in_slash && file_starts_with_slash)
2044  {
2045  _dbus_string_shorten (dir, 1);
2046  }
2047  else if (!(dir_ends_in_slash || file_starts_with_slash))
2048  {
2049  if (!_dbus_string_append_byte (dir, '\\'))
2050  return FALSE;
2051  }
2052 
2053  return _dbus_string_copy (next_component, 0, dir,
2054  _dbus_string_get_length (dir));
2055 }
2056 
2057 /*---------------- DBusCredentials ----------------------------------*/
2058 
2068  const DBusString *username)
2069 {
2070  return _dbus_credentials_add_windows_sid (credentials,
2071  _dbus_string_get_const_data(username));
2072 }
2073 
2084 {
2085  dbus_bool_t retval = FALSE;
2086  char *sid = NULL;
2087 
2088  if (!_dbus_getsid(&sid, _dbus_getpid()))
2089  goto failed;
2090 
2091  if (!_dbus_credentials_add_pid (credentials, _dbus_getpid()))
2092  goto failed;
2093 
2094  if (!_dbus_credentials_add_windows_sid (credentials,sid))
2095  goto failed;
2096 
2097  retval = TRUE;
2098  goto end;
2099 failed:
2100  retval = FALSE;
2101 end:
2102  if (sid)
2103  LocalFree(sid);
2104 
2105  return retval;
2106 }
2107 
2122 {
2123  dbus_bool_t retval = FALSE;
2124  char *sid = NULL;
2125 
2126  if (!_dbus_getsid(&sid, _dbus_getpid()))
2127  return FALSE;
2128 
2129  retval = _dbus_string_append (str,sid);
2130 
2131  LocalFree(sid);
2132  return retval;
2133 }
2134 
2139 dbus_pid_t
2141 {
2142  return GetCurrentProcessId ();
2143 }
2144 
2148 dbus_uid_t
2150 {
2151  return DBUS_UID_UNSET;
2152 }
2153 
2155 #define NANOSECONDS_PER_SECOND 1000000000
2156 
2157 #define MICROSECONDS_PER_SECOND 1000000
2158 
2159 #define MILLISECONDS_PER_SECOND 1000
2160 
2161 #define NANOSECONDS_PER_MILLISECOND 1000000
2162 
2163 #define MICROSECONDS_PER_MILLISECOND 1000
2164 
2169 void
2170 _dbus_sleep_milliseconds (int milliseconds)
2171 {
2172  Sleep (milliseconds);
2173 }
2174 
2175 
2183 void
2184 _dbus_get_real_time (long *tv_sec,
2185  long *tv_usec)
2186 {
2187  FILETIME ft;
2188  dbus_uint64_t time64;
2189 
2190  GetSystemTimeAsFileTime (&ft);
2191 
2192  memcpy (&time64, &ft, sizeof (time64));
2193 
2194  /* Convert from 100s of nanoseconds since 1601-01-01
2195  * to Unix epoch. Yes, this is Y2038 unsafe.
2196  */
2197  time64 -= DBUS_INT64_CONSTANT (116444736000000000);
2198  time64 /= 10;
2199 
2200  if (tv_sec)
2201  *tv_sec = time64 / 1000000;
2202 
2203  if (tv_usec)
2204  *tv_usec = time64 % 1000000;
2205 }
2206 
2214 void
2216  long *tv_usec)
2217 {
2218  /* no implementation yet, fall back to wall-clock time */
2219  _dbus_get_real_time (tv_sec, tv_usec);
2220 }
2221 
2225 void
2227 {
2228 }
2229 
2240  DBusError *error)
2241 {
2242  const char *filename_c;
2243 
2244  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2245 
2246  filename_c = _dbus_string_get_const_data (filename);
2247 
2248  if (!CreateDirectoryA (filename_c, NULL))
2249  {
2251  "Failed to create directory %s: %s\n",
2252  filename_c, _dbus_strerror_from_errno ());
2253  return FALSE;
2254  }
2255  else
2256  return TRUE;
2257 }
2258 
2269  DBusError *error)
2270 {
2271  const char *filename_c;
2272 
2273  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2274 
2275  filename_c = _dbus_string_get_const_data (filename);
2276 
2277  if (!CreateDirectoryA (filename_c, NULL))
2278  {
2279  if (GetLastError () == ERROR_ALREADY_EXISTS)
2280  return TRUE;
2281 
2283  "Failed to create directory %s: %s\n",
2284  filename_c, _dbus_strerror_from_errno ());
2285  return FALSE;
2286  }
2287  else
2288  return TRUE;
2289 }
2290 
2291 
2303  int n_bytes,
2304  DBusError *error)
2305 {
2306  int old_len;
2307  unsigned char *p;
2308  HCRYPTPROV hprov;
2309 
2310  old_len = _dbus_string_get_length (str);
2311 
2312  if (!_dbus_string_lengthen (str, n_bytes))
2313  {
2314  _DBUS_SET_OOM (error);
2315  return FALSE;
2316  }
2317 
2318  p = _dbus_string_get_udata_len (str, old_len, n_bytes);
2319 
2320  if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
2321  {
2322  _DBUS_SET_OOM (error);
2323  return FALSE;
2324  }
2325 
2326  if (!CryptGenRandom (hprov, n_bytes, p))
2327  {
2328  _DBUS_SET_OOM (error);
2329  CryptReleaseContext (hprov, 0);
2330  return FALSE;
2331  }
2332 
2333  CryptReleaseContext (hprov, 0);
2334 
2335  return TRUE;
2336 }
2337 
2344 const char*
2346 {
2347  /* Protected by _DBUS_LOCK_sysdeps */
2348  static const char* tmpdir = NULL;
2349  static char buf[1000];
2350 
2351  if (!_DBUS_LOCK (sysdeps))
2352  return NULL;
2353 
2354  if (tmpdir == NULL)
2355  {
2356  unsigned char *last_slash;
2357  unsigned char *p = (unsigned char *)buf;
2358 
2359  if (!GetTempPathA (sizeof (buf), buf))
2360  {
2361  _dbus_warn ("GetTempPath failed");
2362  _dbus_abort ();
2363  }
2364 
2365  /* Drop terminating backslash or slash */
2366  last_slash = _mbsrchr (p, '\\');
2367  if (last_slash > p && last_slash[1] == '\0')
2368  last_slash[0] = '\0';
2369  last_slash = _mbsrchr (p, '/');
2370  if (last_slash > p && last_slash[1] == '\0')
2371  last_slash[0] = '\0';
2372 
2373  tmpdir = buf;
2374  }
2375 
2376  _DBUS_UNLOCK (sysdeps);
2377 
2378  _dbus_assert(tmpdir != NULL);
2379 
2380  return tmpdir;
2381 }
2382 
2383 
2394  DBusError *error)
2395 {
2396  const char *filename_c;
2397 
2398  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2399 
2400  filename_c = _dbus_string_get_const_data (filename);
2401 
2402  if (DeleteFileA (filename_c) == 0)
2403  {
2405  "Failed to delete file %s: %s\n",
2406  filename_c, _dbus_strerror_from_errno ());
2407  return FALSE;
2408  }
2409  else
2410  return TRUE;
2411 }
2412 
2413 #if !defined (DBUS_DISABLE_ASSERT) || defined(DBUS_ENABLE_EMBEDDED_TESTS)
2414 
2415 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2416 # ifdef BACKTRACES
2417 # undef BACKTRACES
2418 # endif
2419 #else
2420 # define BACKTRACES
2421 #endif
2422 
2423 #ifdef BACKTRACES
2424 /*
2425  * Backtrace Generator
2426  *
2427  * Copyright 2004 Eric Poech
2428  * Copyright 2004 Robert Shearman
2429  *
2430  * This library is free software; you can redistribute it and/or
2431  * modify it under the terms of the GNU Lesser General Public
2432  * License as published by the Free Software Foundation; either
2433  * version 2.1 of the License, or (at your option) any later version.
2434  *
2435  * This library is distributed in the hope that it will be useful,
2436  * but WITHOUT ANY WARRANTY; without even the implied warranty of
2437  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2438  * Lesser General Public License for more details.
2439  *
2440  * You should have received a copy of the GNU Lesser General Public
2441  * License along with this library; if not, write to the Free Software
2442  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2443  */
2444 
2445 #include <winver.h>
2446 #include <imagehlp.h>
2447 #include <stdio.h>
2448 
2449 #define DPRINTF(fmt, ...) fprintf (stderr, fmt, ##__VA_ARGS__)
2450 
2451 #ifdef _MSC_VER
2452 #define BOOL int
2453 
2454 #define __i386__
2455 #endif
2456 
2457 static void dump_backtrace_for_thread (HANDLE hThread)
2458 {
2459  ADDRESS old_address;
2460  STACKFRAME sf;
2461  CONTEXT context;
2462  DWORD dwImageType;
2463  int i = 0;
2464 
2465  SymSetOptions (SYMOPT_UNDNAME | SYMOPT_LOAD_LINES);
2466  SymInitialize (GetCurrentProcess (), NULL, TRUE);
2467 
2468 
2469  /* can't use this function for current thread as GetThreadContext
2470  * doesn't support getting context from current thread */
2471  if (hThread == GetCurrentThread())
2472  return;
2473 
2474  DPRINTF ("Backtrace:\n");
2475 
2476  _DBUS_ZERO (old_address);
2477  _DBUS_ZERO (context);
2478  context.ContextFlags = CONTEXT_FULL;
2479 
2480  SuspendThread (hThread);
2481 
2482  if (!GetThreadContext (hThread, &context))
2483  {
2484  DPRINTF ("Couldn't get thread context (error %ld)\n", GetLastError ());
2485  ResumeThread (hThread);
2486  return;
2487  }
2488 
2489  _DBUS_ZERO (sf);
2490 
2491 #ifdef __i386__
2492  dwImageType = IMAGE_FILE_MACHINE_I386;
2493  sf.AddrFrame.Offset = context.Ebp;
2494  sf.AddrFrame.Mode = AddrModeFlat;
2495  sf.AddrPC.Offset = context.Eip;
2496  sf.AddrPC.Mode = AddrModeFlat;
2497 #elif defined(_M_X64)
2498  dwImageType = IMAGE_FILE_MACHINE_AMD64;
2499  sf.AddrPC.Offset = context.Rip;
2500  sf.AddrPC.Mode = AddrModeFlat;
2501  sf.AddrFrame.Offset = context.Rsp;
2502  sf.AddrFrame.Mode = AddrModeFlat;
2503  sf.AddrStack.Offset = context.Rsp;
2504  sf.AddrStack.Mode = AddrModeFlat;
2505 #elif defined(_M_IA64)
2506  dwImageType = IMAGE_FILE_MACHINE_IA64;
2507  sf.AddrPC.Offset = context.StIIP;
2508  sf.AddrPC.Mode = AddrModeFlat;
2509  sf.AddrFrame.Offset = context.IntSp;
2510  sf.AddrFrame.Mode = AddrModeFlat;
2511  sf.AddrBStore.Offset= context.RsBSP;
2512  sf.AddrBStore.Mode = AddrModeFlat;
2513  sf.AddrStack.Offset = context.IntSp;
2514  sf.AddrStack.Mode = AddrModeFlat;
2515 #else
2516 # error You need to fill in the STACKFRAME structure for your architecture
2517 #endif
2518 
2519  /*
2520  backtrace format
2521  <level> <address> <symbol>[+offset] [ '[' <file> ':' <line> ']' ] [ 'in' <module> ]
2522  example:
2523  6 0xf75ade6b wine_switch_to_stack+0x2a [/usr/src/debug/wine-snapshot/libs/wine/port.c:59] in libwine.so.1
2524  */
2525  while (StackWalk (dwImageType, GetCurrentProcess (),
2526  hThread, &sf, &context, NULL, SymFunctionTableAccess,
2527  SymGetModuleBase, NULL))
2528  {
2529  char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(char)];
2530  PSYMBOL_INFO pSymbol = (PSYMBOL_INFO)buffer;
2531  DWORD64 displacement;
2532  IMAGEHLP_LINE line;
2533  DWORD dwDisplacement;
2534  IMAGEHLP_MODULE moduleInfo;
2535 
2536  /*
2537  on Wine64 version 1.7.54, we get an infinite number of stack entries
2538  pointing to the same stack frame (_start+0x29 in <wine-loader>)
2539  see bug https://bugs.winehq.org/show_bug.cgi?id=39606
2540  */
2541 #ifndef __i386__
2542  if (old_address.Offset == sf.AddrPC.Offset)
2543  {
2544  break;
2545  }
2546 #endif
2547 
2548  pSymbol->SizeOfStruct = sizeof(SYMBOL_INFO);
2549  pSymbol->MaxNameLen = MAX_SYM_NAME;
2550 
2551  if (SymFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &displacement, pSymbol))
2552  {
2553  if (displacement)
2554  DPRINTF ("%3d %s+0x%I64x", i++, pSymbol->Name, displacement);
2555  else
2556  DPRINTF ("%3d %s", i++, pSymbol->Name);
2557  }
2558  else
2559  DPRINTF ("%3d 0x%Ix", i++, sf.AddrPC.Offset);
2560 
2561  line.SizeOfStruct = sizeof(IMAGEHLP_LINE);
2562  if (SymGetLineFromAddr (GetCurrentProcess (), sf.AddrPC.Offset, &dwDisplacement, &line))
2563  {
2564  DPRINTF (" [%s:%ld]", line.FileName, line.LineNumber);
2565  }
2566 
2567  moduleInfo.SizeOfStruct = sizeof(moduleInfo);
2568  if (SymGetModuleInfo (GetCurrentProcess (), sf.AddrPC.Offset, &moduleInfo))
2569  {
2570  DPRINTF (" in %s", moduleInfo.ModuleName);
2571  }
2572  DPRINTF ("\n");
2573  old_address = sf.AddrPC;
2574  }
2575  ResumeThread (hThread);
2576 }
2577 
2578 static DWORD WINAPI dump_thread_proc (LPVOID lpParameter)
2579 {
2580  dump_backtrace_for_thread ((HANDLE) lpParameter);
2581  return 0;
2582 }
2583 
2584 /* cannot get valid context from current thread, so we have to execute
2585  * backtrace from another thread */
2586 static void
2587 dump_backtrace (void)
2588 {
2589  HANDLE hCurrentThread;
2590  HANDLE hThread;
2591  DWORD dwThreadId;
2592  DuplicateHandle (GetCurrentProcess (), GetCurrentThread (),
2593  GetCurrentProcess (), &hCurrentThread,
2594  0, FALSE, DUPLICATE_SAME_ACCESS);
2595  hThread = CreateThread (NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2596  0, &dwThreadId);
2597  WaitForSingleObject (hThread, INFINITE);
2598  CloseHandle (hThread);
2599  CloseHandle (hCurrentThread);
2600 }
2601 #endif
2602 #endif /* asserts or tests enabled */
2603 
2604 #ifdef BACKTRACES
2606 {
2607  dump_backtrace ();
2608 }
2609 #else
2610 void _dbus_print_backtrace (void)
2611 {
2612  _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2613 }
2614 #endif
2615 
2616 static dbus_uint32_t fromAscii(char ascii)
2617 {
2618  if(ascii >= '0' && ascii <= '9')
2619  return ascii - '0';
2620  if(ascii >= 'A' && ascii <= 'F')
2621  return ascii - 'A' + 10;
2622  if(ascii >= 'a' && ascii <= 'f')
2623  return ascii - 'a' + 10;
2624  return 0;
2625 }
2626 
2628  dbus_bool_t create_if_not_found,
2629  DBusError *error)
2630 {
2631 #ifdef DBUS_WINCE
2632  return TRUE;
2633  // TODO
2634 #else
2635  HW_PROFILE_INFOA info;
2636  char *lpc = &info.szHwProfileGuid[0];
2637  dbus_uint32_t u;
2638 
2639  // the hw-profile guid lives long enough
2640  if(!GetCurrentHwProfileA(&info))
2641  {
2642  dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2643  return FALSE;
2644  }
2645 
2646  // Form: {12340001-4980-1920-6788-123456789012}
2647  lpc++;
2648  // 12340001
2649  u = ((fromAscii(lpc[0]) << 0) |
2650  (fromAscii(lpc[1]) << 4) |
2651  (fromAscii(lpc[2]) << 8) |
2652  (fromAscii(lpc[3]) << 12) |
2653  (fromAscii(lpc[4]) << 16) |
2654  (fromAscii(lpc[5]) << 20) |
2655  (fromAscii(lpc[6]) << 24) |
2656  (fromAscii(lpc[7]) << 28));
2657  machine_id->as_uint32s[0] = u;
2658 
2659  lpc += 9;
2660  // 4980-1920
2661  u = ((fromAscii(lpc[0]) << 0) |
2662  (fromAscii(lpc[1]) << 4) |
2663  (fromAscii(lpc[2]) << 8) |
2664  (fromAscii(lpc[3]) << 12) |
2665  (fromAscii(lpc[5]) << 16) |
2666  (fromAscii(lpc[6]) << 20) |
2667  (fromAscii(lpc[7]) << 24) |
2668  (fromAscii(lpc[8]) << 28));
2669  machine_id->as_uint32s[1] = u;
2670 
2671  lpc += 10;
2672  // 6788-1234
2673  u = ((fromAscii(lpc[0]) << 0) |
2674  (fromAscii(lpc[1]) << 4) |
2675  (fromAscii(lpc[2]) << 8) |
2676  (fromAscii(lpc[3]) << 12) |
2677  (fromAscii(lpc[5]) << 16) |
2678  (fromAscii(lpc[6]) << 20) |
2679  (fromAscii(lpc[7]) << 24) |
2680  (fromAscii(lpc[8]) << 28));
2681  machine_id->as_uint32s[2] = u;
2682 
2683  lpc += 9;
2684  // 56789012
2685  u = ((fromAscii(lpc[0]) << 0) |
2686  (fromAscii(lpc[1]) << 4) |
2687  (fromAscii(lpc[2]) << 8) |
2688  (fromAscii(lpc[3]) << 12) |
2689  (fromAscii(lpc[4]) << 16) |
2690  (fromAscii(lpc[5]) << 20) |
2691  (fromAscii(lpc[6]) << 24) |
2692  (fromAscii(lpc[7]) << 28));
2693  machine_id->as_uint32s[3] = u;
2694 #endif
2695  return TRUE;
2696 }
2697 
2698 static
2699 HANDLE _dbus_global_lock (const char *mutexname)
2700 {
2701  HANDLE mutex;
2702  DWORD gotMutex;
2703 
2704  mutex = CreateMutexA( NULL, FALSE, mutexname );
2705  if( !mutex )
2706  {
2707  return FALSE;
2708  }
2709 
2710  gotMutex = WaitForSingleObject( mutex, INFINITE );
2711  switch( gotMutex )
2712  {
2713  case WAIT_ABANDONED:
2714  ReleaseMutex (mutex);
2715  CloseHandle (mutex);
2716  return 0;
2717  case WAIT_FAILED:
2718  case WAIT_TIMEOUT:
2719  return 0;
2720  default:
2721  return mutex;
2722  }
2723 }
2724 
2725 static
2726 void _dbus_global_unlock (HANDLE mutex)
2727 {
2728  ReleaseMutex (mutex);
2729  CloseHandle (mutex);
2730 }
2731 
2732 // for proper cleanup in dbus-daemon
2733 static HANDLE hDBusDaemonMutex = NULL;
2734 static HANDLE hDBusSharedMem = NULL;
2735 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2736 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2737 // sync _dbus_get_autolaunch_address
2738 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2739 // mutex to determine if dbus-daemon is already started (per user)
2740 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2741 // named shm for dbus adress info (per user)
2742 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2743 
2744 static dbus_bool_t
2745 _dbus_get_install_root_as_hash(DBusString *out)
2746 {
2747  DBusString install_path;
2748 
2749  _dbus_string_init(&install_path);
2750 
2751  if (!_dbus_get_install_root (&install_path) ||
2752  _dbus_string_get_length (&install_path) == 0)
2753  return FALSE;
2754 
2755  _dbus_string_init(out);
2756  _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2757 
2758  if (!_dbus_sha_compute (&install_path, out))
2759  return FALSE;
2760 
2761  return TRUE;
2762 }
2763 
2764 static dbus_bool_t
2765 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2766 {
2767  _dbus_string_init(out);
2768  _dbus_string_append(out,basestring);
2769 
2770  if (!scope)
2771  {
2772  return TRUE;
2773  }
2774  else if (strcmp(scope,"*install-path") == 0
2775  // for 1.3 compatibility
2776  || strcmp(scope,"install-path") == 0)
2777  {
2778  DBusString temp;
2779  if (!_dbus_get_install_root_as_hash(&temp))
2780  {
2781  _dbus_string_free(out);
2782  return FALSE;
2783  }
2784  _dbus_string_append(out,"-");
2786  _dbus_string_free(&temp);
2787  }
2788  else if (strcmp(scope,"*user") == 0)
2789  {
2790  _dbus_string_append(out,"-");
2792  {
2793  _dbus_string_free(out);
2794  return FALSE;
2795  }
2796  }
2797  else if (strlen(scope) > 0)
2798  {
2799  _dbus_string_append(out,"-");
2800  _dbus_string_append(out,scope);
2801  return TRUE;
2802  }
2803  return TRUE;
2804 }
2805 
2806 static dbus_bool_t
2807 _dbus_get_shm_name (DBusString *out,const char *scope)
2808 {
2809  return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2810 }
2811 
2812 static dbus_bool_t
2813 _dbus_get_mutex_name (DBusString *out,const char *scope)
2814 {
2815  return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2816 }
2817 
2819 _dbus_daemon_is_session_bus_address_published (const char *scope)
2820 {
2821  HANDLE lock;
2822  DBusString mutex_name;
2823 
2824  if (!_dbus_get_mutex_name(&mutex_name,scope))
2825  {
2826  _dbus_string_free( &mutex_name );
2827  return FALSE;
2828  }
2829 
2830  if (hDBusDaemonMutex)
2831  return TRUE;
2832 
2833  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2834  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2835 
2836  // we use CreateMutex instead of OpenMutex because of possible race conditions,
2837  // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2838  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2839 
2840  /* The client uses mutex ownership to detect a running server, so the server should do so too.
2841  Fortunally the client deletes the mutex in the lock protected area, so checking presence
2842  will work too. */
2843 
2844  _dbus_global_unlock( lock );
2845 
2846  _dbus_string_free( &mutex_name );
2847 
2848  if (hDBusDaemonMutex == NULL)
2849  return FALSE;
2850  if (GetLastError() == ERROR_ALREADY_EXISTS)
2851  {
2852  CloseHandle(hDBusDaemonMutex);
2853  hDBusDaemonMutex = NULL;
2854  return TRUE;
2855  }
2856  // mutex wasn't created before, so return false.
2857  // We leave the mutex name allocated for later reusage
2858  // in _dbus_daemon_publish_session_bus_address.
2859  return FALSE;
2860 }
2861 
2863 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2864 {
2865  HANDLE lock;
2866  char *shared_addr = NULL;
2867  DBusString shm_name;
2868  DBusString mutex_name;
2869  dbus_uint64_t len;
2870 
2871  _dbus_assert (address);
2872 
2873  if (!_dbus_get_mutex_name(&mutex_name,scope))
2874  {
2875  _dbus_string_free( &mutex_name );
2876  return FALSE;
2877  }
2878 
2879  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2880  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2881 
2882  if (!hDBusDaemonMutex)
2883  {
2884  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2885  }
2886  _dbus_string_free( &mutex_name );
2887 
2888  // acquire the mutex
2889  if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2890  {
2891  _dbus_global_unlock( lock );
2892  CloseHandle( hDBusDaemonMutex );
2893  return FALSE;
2894  }
2895 
2896  if (!_dbus_get_shm_name(&shm_name,scope))
2897  {
2898  _dbus_string_free( &shm_name );
2899  _dbus_global_unlock( lock );
2900  return FALSE;
2901  }
2902 
2903  // create shm
2904  len = strlen (address) + 1;
2905 
2906  hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2907  len >> 32, len & 0xffffffffu,
2908  _dbus_string_get_const_data(&shm_name) );
2909  _dbus_assert( hDBusSharedMem );
2910 
2911  shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2912 
2913  _dbus_assert (shared_addr);
2914 
2915  strcpy( shared_addr, address);
2916 
2917  // cleanup
2918  UnmapViewOfFile( shared_addr );
2919 
2920  _dbus_global_unlock( lock );
2921  _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2922 
2923  _dbus_string_free( &shm_name );
2924  return TRUE;
2925 }
2926 
2927 void
2928 _dbus_daemon_unpublish_session_bus_address (void)
2929 {
2930  HANDLE lock;
2931 
2932  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2933  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2934 
2935  CloseHandle( hDBusSharedMem );
2936 
2937  hDBusSharedMem = NULL;
2938 
2939  ReleaseMutex( hDBusDaemonMutex );
2940 
2941  CloseHandle( hDBusDaemonMutex );
2942 
2943  hDBusDaemonMutex = NULL;
2944 
2945  _dbus_global_unlock( lock );
2946 }
2947 
2948 static dbus_bool_t
2949 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2950 {
2951  HANDLE sharedMem;
2952  char *shared_addr;
2953  int i;
2954 
2955  // read shm
2956  for(i=0;i<20;++i) {
2957  // we know that dbus-daemon is available, so we wait until shm is available
2958  sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2959  if( sharedMem == 0 )
2960  Sleep( 100 );
2961  if ( sharedMem != 0)
2962  break;
2963  }
2964 
2965  if( sharedMem == 0 )
2966  return FALSE;
2967 
2968  shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2969 
2970  if( !shared_addr )
2971  return FALSE;
2972 
2973  _dbus_string_init( address );
2974 
2975  _dbus_string_append( address, shared_addr );
2976 
2977  // cleanup
2978  UnmapViewOfFile( shared_addr );
2979 
2980  CloseHandle( sharedMem );
2981 
2982  return TRUE;
2983 }
2984 
2985 static dbus_bool_t
2986 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2987 {
2988  HANDLE lock;
2989  HANDLE daemon;
2990  DBusString mutex_name;
2991  dbus_bool_t bRet = TRUE;
2992 
2993  if (!_dbus_get_mutex_name(&mutex_name,scope))
2994  {
2995  _dbus_string_free( &mutex_name );
2996  return FALSE;
2997  }
2998 
2999  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
3000  lock = _dbus_global_lock( cUniqueDBusInitMutex );
3001 
3002  // do checks
3003  daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
3004  if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
3005  {
3006  ReleaseMutex (daemon);
3007  CloseHandle (daemon);
3008 
3009  _dbus_global_unlock( lock );
3010  _dbus_string_free( &mutex_name );
3011  return FALSE;
3012  }
3013 
3014  // read shm
3015  bRet = _dbus_get_autolaunch_shm( address, shm_name );
3016 
3017  // cleanup
3018  CloseHandle ( daemon );
3019 
3020  _dbus_global_unlock( lock );
3021  _dbus_string_free( &mutex_name );
3022 
3023  return bRet;
3024 }
3025 
3027 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
3028  DBusError *error)
3029 {
3030  HANDLE mutex;
3031  STARTUPINFOA si;
3032  PROCESS_INFORMATION pi;
3033  dbus_bool_t retval = FALSE;
3034  LPSTR lpFile;
3035  char dbus_exe_path[MAX_PATH];
3036  char dbus_args[MAX_PATH * 2];
3037  const char * daemon_name = DBUS_DAEMON_NAME ".exe";
3038  DBusString shm_name;
3039 
3040  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3041 
3042  if (!_dbus_get_shm_name(&shm_name,scope))
3043  {
3044  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
3045  return FALSE;
3046  }
3047 
3048  mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
3049 
3050  if (_dbus_daemon_already_runs(address,&shm_name,scope))
3051  {
3052  _dbus_verbose( "found running dbus daemon for scope '%s' at %s\n",
3053  scope ? scope : "", _dbus_string_get_const_data (&shm_name) );
3054  retval = TRUE;
3055  goto out;
3056  }
3057 
3058  if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3059  {
3060  // Look in directory containing dbus shared library
3061  HMODULE hmod;
3062  char dbus_module_path[MAX_PATH];
3063  DWORD rc;
3064 
3065  _dbus_verbose( "did not found dbus daemon executable on default search path, "
3066  "trying path where dbus shared library is located");
3067 
3068  hmod = _dbus_win_get_dll_hmodule();
3069  rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
3070  if (rc <= 0)
3071  {
3072  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
3073  retval = FALSE;
3074  goto out;
3075  }
3076  else
3077  {
3078  char *ext_idx = strrchr(dbus_module_path, '\\');
3079  if (ext_idx)
3080  *ext_idx = '\0';
3081  if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
3082  {
3083  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
3084  retval = FALSE;
3085  printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
3086  printf ("or start the daemon manually\n\n");
3087  goto out;
3088  }
3089  _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
3090  }
3091  }
3092 
3093 
3094  // Create process
3095  ZeroMemory( &si, sizeof(si) );
3096  si.cb = sizeof(si);
3097  ZeroMemory( &pi, sizeof(pi) );
3098 
3099  _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
3100 
3101 // argv[i] = "--config-file=bus\\session.conf";
3102 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
3103  if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
3104  {
3105  CloseHandle (pi.hThread);
3106  CloseHandle (pi.hProcess);
3107  retval = _dbus_get_autolaunch_shm( address, &shm_name );
3108  if (retval == FALSE)
3109  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
3110  }
3111  else
3112  {
3113  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
3114  retval = FALSE;
3115  }
3116 
3117 out:
3118  if (retval)
3119  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3120  else
3121  _DBUS_ASSERT_ERROR_IS_SET (error);
3122 
3123  _dbus_global_unlock (mutex);
3124  _dbus_string_free (&shm_name);
3125 
3126  return retval;
3127  }
3128 
3129 
3138  DBusError *error)
3139 {
3140  // TODO
3141  return TRUE;
3142 }
3143 
3153 {
3154  // +/- 1 is needed here!
3155  // no volatile argument with mingw
3156  return InterlockedIncrement (&atomic->value) - 1;
3157 }
3158 
3168 {
3169  // +/- 1 is needed here!
3170  // no volatile argument with mingw
3171  return InterlockedDecrement (&atomic->value) + 1;
3172 }
3173 
3183 {
3184  /* In this situation, GLib issues a MemoryBarrier() and then returns
3185  * atomic->value. However, mingw from mingw.org (not to be confused with
3186  * mingw-w64 from mingw-w64.sf.net) does not have MemoryBarrier in its
3187  * headers, so we have to get a memory barrier some other way.
3188  *
3189  * InterlockedIncrement is older, and is documented on MSDN to be a full
3190  * memory barrier, so let's use that.
3191  */
3192  long dummy = 0;
3193 
3194  InterlockedExchange (&dummy, 1);
3195 
3196  return atomic->value;
3197 }
3198 
3206 void
3208 {
3209 }
3210 
3219 {
3220  return e == WSAEWOULDBLOCK;
3221 }
3222 
3231 _dbus_get_install_root (DBusString *str)
3232 {
3233  /* this is just an initial guess */
3234  DWORD pathLength = MAX_PATH;
3235  unsigned char *lastSlash;
3236  unsigned char *prefix;
3237 
3238  do
3239  {
3240  /* allocate enough space for our best guess at the length */
3241  if (!_dbus_string_set_length (str, pathLength))
3242  {
3243  _dbus_string_set_length (str, 0);
3244  return FALSE;
3245  }
3246 
3247  SetLastError (0);
3248  pathLength = GetModuleFileNameA (_dbus_win_get_dll_hmodule (),
3250 
3251  if (pathLength == 0 || GetLastError () != 0)
3252  {
3253  /* failed, but not OOM */
3254  _dbus_string_set_length (str, 0);
3255  return TRUE;
3256  }
3257 
3258  /* if the return is strictly less than the buffer size, it has
3259  * not been truncated, so we can continue */
3260  if (pathLength < (DWORD) _dbus_string_get_length (str))
3261  {
3262  /* reduce the length to match what Windows filled in */
3263  if (!_dbus_string_set_length (str, pathLength))
3264  {
3265  _dbus_string_set_length (str, 0);
3266  return FALSE;
3267  }
3268 
3269  break;
3270  }
3271 
3272  /* else it may have been truncated; try with a larger buffer */
3273  pathLength *= 2;
3274  }
3275  while (TRUE);
3276 
3277  /* the rest of this function works by direct byte manipulation of the
3278  * underlying buffer */
3279  prefix = _dbus_string_get_udata (str);
3280 
3281  lastSlash = _mbsrchr (prefix, '\\');
3282  if (lastSlash == NULL) {
3283  /* failed, but not OOM */
3284  _dbus_string_set_length (str, 0);
3285  return TRUE;
3286  }
3287  //cut off binary name
3288  lastSlash[1] = 0;
3289 
3290  //cut possible "\\bin"
3291  //this fails if we are in a double-byte system codepage and the
3292  //folder's name happens to end with the *bytes*
3293  //"\\bin"... (I.e. the second byte of some Han character and then
3294  //the Latin "bin", but that is not likely I think...
3295  if (lastSlash - prefix >= 4 && _mbsnicmp (lastSlash - 4, (const unsigned char *)"\\bin", 4) == 0)
3296  lastSlash[-3] = 0;
3297  else if (lastSlash - prefix >= 10 && _mbsnicmp (lastSlash - 10, (const unsigned char *)"\\bin\\debug", 10) == 0)
3298  lastSlash[-9] = 0;
3299  else if (lastSlash - prefix >= 12 && _mbsnicmp (lastSlash - 12, (const unsigned char *)"\\bin\\release", 12) == 0)
3300  lastSlash[-11] = 0;
3301 
3302  /* fix up the length to match the byte-manipulation */
3303  _dbus_string_set_length (str, strlen ((char *) prefix));
3304 
3305  return TRUE;
3306 }
3307 
3308 /* See comment in dbus-sysdeps-unix.c */
3311  DBusString *address,
3312  DBusError *error)
3313 {
3314  /* Probably fill this in with something based on COM? */
3315  *supported = FALSE;
3316  return TRUE;
3317 }
3318 
3334  DBusCredentials *credentials)
3335 {
3336  DBusString homedir;
3337  DBusString dotdir;
3338  const char *homepath;
3339  const char *homedrive;
3340 
3341  _dbus_assert (credentials != NULL);
3343 
3344  if (!_dbus_string_init (&homedir))
3345  return FALSE;
3346 
3347  homedrive = _dbus_getenv("HOMEDRIVE");
3348  if (homedrive != NULL && *homedrive != '\0')
3349  {
3350  _dbus_string_append(&homedir,homedrive);
3351  }
3352 
3353  homepath = _dbus_getenv("HOMEPATH");
3354  if (homepath != NULL && *homepath != '\0')
3355  {
3356  _dbus_string_append(&homedir,homepath);
3357  }
3358 
3359 #ifdef DBUS_ENABLE_EMBEDDED_TESTS
3360  {
3361  const char *override;
3362 
3363  override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3364  if (override != NULL && *override != '\0')
3365  {
3366  _dbus_string_set_length (&homedir, 0);
3367  if (!_dbus_string_append (&homedir, override))
3368  goto failed;
3369 
3370  _dbus_verbose ("Using fake homedir for testing: %s\n",
3371  _dbus_string_get_const_data (&homedir));
3372  }
3373  else
3374  {
3375  /* Not strictly thread-safe, but if we fail at thread-safety here,
3376  * the worst that will happen is some extra warnings. */
3377  static dbus_bool_t already_warned = FALSE;
3378  if (!already_warned)
3379  {
3380  _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid");
3381  already_warned = TRUE;
3382  }
3383  }
3384  }
3385 #endif
3386 
3387 #ifdef DBUS_WINCE
3388  /* It's not possible to create a .something directory in Windows CE
3389  using the file explorer. */
3390 #define KEYRING_DIR "dbus-keyrings"
3391 #else
3392 #define KEYRING_DIR ".dbus-keyrings"
3393 #endif
3394 
3395  _dbus_string_init_const (&dotdir, KEYRING_DIR);
3396  if (!_dbus_concat_dir_and_file (&homedir,
3397  &dotdir))
3398  goto failed;
3399 
3400  if (!_dbus_string_copy (&homedir, 0,
3401  directory, _dbus_string_get_length (directory))) {
3402  goto failed;
3403  }
3404 
3405  _dbus_string_free (&homedir);
3406  return TRUE;
3407 
3408  failed:
3409  _dbus_string_free (&homedir);
3410  return FALSE;
3411 }
3412 
3418 dbus_bool_t
3419 _dbus_file_exists (const char *file)
3420 {
3421  DWORD attributes = GetFileAttributesA (file);
3422 
3423  if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3424  return TRUE;
3425  else
3426  return FALSE;
3427 }
3428 
3436 const char*
3437 _dbus_strerror (int error_number)
3438 {
3439 #ifdef DBUS_WINCE
3440  // TODO
3441  return "unknown";
3442 #else
3443  const char *msg;
3444 
3445  switch (error_number)
3446  {
3447  case WSAEINTR:
3448  return "Interrupted function call";
3449  case WSAEACCES:
3450  return "Permission denied";
3451  case WSAEFAULT:
3452  return "Bad address";
3453  case WSAEINVAL:
3454  return "Invalid argument";
3455  case WSAEMFILE:
3456  return "Too many open files";
3457  case WSAEWOULDBLOCK:
3458  return "Resource temporarily unavailable";
3459  case WSAEINPROGRESS:
3460  return "Operation now in progress";
3461  case WSAEALREADY:
3462  return "Operation already in progress";
3463  case WSAENOTSOCK:
3464  return "Socket operation on nonsocket";
3465  case WSAEDESTADDRREQ:
3466  return "Destination address required";
3467  case WSAEMSGSIZE:
3468  return "Message too long";
3469  case WSAEPROTOTYPE:
3470  return "Protocol wrong type for socket";
3471  case WSAENOPROTOOPT:
3472  return "Bad protocol option";
3473  case WSAEPROTONOSUPPORT:
3474  return "Protocol not supported";
3475  case WSAESOCKTNOSUPPORT:
3476  return "Socket type not supported";
3477  case WSAEOPNOTSUPP:
3478  return "Operation not supported";
3479  case WSAEPFNOSUPPORT:
3480  return "Protocol family not supported";
3481  case WSAEAFNOSUPPORT:
3482  return "Address family not supported by protocol family";
3483  case WSAEADDRINUSE:
3484  return "Address already in use";
3485  case WSAEADDRNOTAVAIL:
3486  return "Cannot assign requested address";
3487  case WSAENETDOWN:
3488  return "Network is down";
3489  case WSAENETUNREACH:
3490  return "Network is unreachable";
3491  case WSAENETRESET:
3492  return "Network dropped connection on reset";
3493  case WSAECONNABORTED:
3494  return "Software caused connection abort";
3495  case WSAECONNRESET:
3496  return "Connection reset by peer";
3497  case WSAENOBUFS:
3498  return "No buffer space available";
3499  case WSAEISCONN:
3500  return "Socket is already connected";
3501  case WSAENOTCONN:
3502  return "Socket is not connected";
3503  case WSAESHUTDOWN:
3504  return "Cannot send after socket shutdown";
3505  case WSAETIMEDOUT:
3506  return "Connection timed out";
3507  case WSAECONNREFUSED:
3508  return "Connection refused";
3509  case WSAEHOSTDOWN:
3510  return "Host is down";
3511  case WSAEHOSTUNREACH:
3512  return "No route to host";
3513  case WSAEPROCLIM:
3514  return "Too many processes";
3515  case WSAEDISCON:
3516  return "Graceful shutdown in progress";
3517  case WSATYPE_NOT_FOUND:
3518  return "Class type not found";
3519  case WSAHOST_NOT_FOUND:
3520  return "Host not found";
3521  case WSATRY_AGAIN:
3522  return "Nonauthoritative host not found";
3523  case WSANO_RECOVERY:
3524  return "This is a nonrecoverable error";
3525  case WSANO_DATA:
3526  return "Valid name, no data record of requested type";
3527  case WSA_INVALID_HANDLE:
3528  return "Specified event object handle is invalid";
3529  case WSA_INVALID_PARAMETER:
3530  return "One or more parameters are invalid";
3531  case WSA_IO_INCOMPLETE:
3532  return "Overlapped I/O event object not in signaled state";
3533  case WSA_IO_PENDING:
3534  return "Overlapped operations will complete later";
3535  case WSA_NOT_ENOUGH_MEMORY:
3536  return "Insufficient memory available";
3537  case WSA_OPERATION_ABORTED:
3538  return "Overlapped operation aborted";
3539 #ifdef WSAINVALIDPROCTABLE
3540 
3541  case WSAINVALIDPROCTABLE:
3542  return "Invalid procedure table from service provider";
3543 #endif
3544 #ifdef WSAINVALIDPROVIDER
3545 
3546  case WSAINVALIDPROVIDER:
3547  return "Invalid service provider version number";
3548 #endif
3549 #ifdef WSAPROVIDERFAILEDINIT
3550 
3551  case WSAPROVIDERFAILEDINIT:
3552  return "Unable to initialize a service provider";
3553 #endif
3554 
3555  case WSASYSCALLFAILURE:
3556  return "System call failure";
3557 
3558  default:
3559  msg = strerror (error_number);
3560 
3561  if (msg == NULL)
3562  msg = "unknown";
3563 
3564  return msg;
3565  }
3566 #endif //DBUS_WINCE
3567 }
3568 
3576 void
3577 _dbus_win_set_error_from_win_error (DBusError *error,
3578  int code)
3579 {
3580  char *msg;
3581 
3582  /* As we want the English message, use the A API */
3583  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3584  FORMAT_MESSAGE_IGNORE_INSERTS |
3585  FORMAT_MESSAGE_FROM_SYSTEM,
3586  NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3587  (LPSTR) &msg, 0, NULL);
3588  if (msg)
3589  {
3590  dbus_set_error (error, "win32.error", "%s", msg);
3591  LocalFree (msg);
3592  }
3593  else
3594  dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3595 }
3596 
3597 void
3598 _dbus_win_warn_win_error (const char *message,
3599  unsigned long code)
3600 {
3601  DBusError error;
3602 
3603  dbus_error_init (&error);
3604  _dbus_win_set_error_from_win_error (&error, code);
3605  _dbus_warn ("%s: %s", message, error.message);
3606  dbus_error_free (&error);
3607 }
3608 
3618  DBusError *error)
3619 {
3620  const char *filename_c;
3621 
3622  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3623 
3624  filename_c = _dbus_string_get_const_data (filename);
3625 
3626  if (RemoveDirectoryA (filename_c) == 0)
3627  {
3628  char *emsg = _dbus_win_error_string (GetLastError ());
3629  dbus_set_error (error, _dbus_win_error_from_last_error (),
3630  "Failed to remove directory %s: %s",
3631  filename_c, emsg);
3632  _dbus_win_free_error_string (emsg);
3633  return FALSE;
3634  }
3635 
3636  return TRUE;
3637 }
3638 
3647 {
3648  if (_dbus_string_get_length (filename) > 0)
3649  return _dbus_string_get_byte (filename, 1) == ':'
3650  || _dbus_string_get_byte (filename, 0) == '\\'
3651  || _dbus_string_get_byte (filename, 0) == '/';
3652  else
3653  return FALSE;
3654 }
3655 
3658 {
3659  return FALSE;
3660 }
3661 
3662 int
3663 _dbus_save_socket_errno (void)
3664 {
3665  return errno;
3666 }
3667 
3668 void
3669 _dbus_restore_socket_errno (int saved_errno)
3670 {
3671  _dbus_win_set_errno (saved_errno);
3672 }
3673 
3674 static const char *log_tag = "dbus";
3675 static DBusLogFlags log_flags = DBUS_LOG_FLAGS_STDERR;
3676 
3687 void
3688 _dbus_init_system_log (const char *tag,
3689  DBusLogFlags flags)
3690 {
3691  /* We never want to turn off logging completely */
3692  _dbus_assert (
3693  (flags & (DBUS_LOG_FLAGS_STDERR | DBUS_LOG_FLAGS_SYSTEM_LOG)) != 0);
3694 
3695  log_tag = tag;
3696  log_flags = flags;
3697 }
3698 
3706 void
3707 _dbus_logv (DBusSystemLogSeverity severity,
3708  const char *msg,
3709  va_list args)
3710 {
3711  const char *s = "";
3712  va_list tmp;
3713 
3714  switch(severity)
3715  {
3716  case DBUS_SYSTEM_LOG_INFO: s = "info"; break;
3717  case DBUS_SYSTEM_LOG_WARNING: s = "warning"; break;
3718  case DBUS_SYSTEM_LOG_SECURITY: s = "security"; break;
3719  case DBUS_SYSTEM_LOG_ERROR: s = "error"; break;
3720  default: _dbus_assert_not_reached ("invalid log severity");
3721  }
3722 
3723  if (log_flags & DBUS_LOG_FLAGS_SYSTEM_LOG)
3724  {
3725  char buf[1024];
3726  char format[1024];
3727 
3728  DBUS_VA_COPY (tmp, args);
3729  snprintf (format, sizeof (format), "%s: %s", s, msg);
3730  vsnprintf(buf, sizeof(buf), format, tmp);
3731  OutputDebugStringA(buf);
3732  va_end (tmp);
3733  }
3734 
3735  if (log_flags & DBUS_LOG_FLAGS_STDERR)
3736  {
3737  DBUS_VA_COPY (tmp, args);
3738  fprintf (stderr, "%s[%lu]: %s: ", log_tag, _dbus_pid_for_log (), s);
3739  vfprintf (stderr, msg, tmp);
3740  fprintf (stderr, "\n");
3741  va_end (tmp);
3742  }
3743 }
3744 
3746 /* tests in dbus-sysdeps-util.c */