D-Bus  1.6.8
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) 2006-2010 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 <ws2tcpip.h>
56 #include <wincrypt.h>
57 
58 /* Declarations missing in mingw's 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 
64 #include <string.h>
65 #if HAVE_ERRNO_H
66 #include <errno.h>
67 #endif
68 #ifndef DBUS_WINCE
69 #include <mbstring.h>
70 #include <sys/stat.h>
71 #include <sys/types.h>
72 #endif
73 
74 #ifdef HAVE_WS2TCPIP_H
75 /* getaddrinfo for Windows CE (and Windows). */
76 #include <ws2tcpip.h>
77 #endif
78 
79 #ifdef HAVE_WSPIAPI_H
80 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
81 #ifdef __GNUC__
82 #define _inline
83 #include "wspiapi.h"
84 #else
85 #include <wspiapi.h>
86 #endif
87 #endif // HAVE_WSPIAPI_H
88 
89 #ifndef O_BINARY
90 #define O_BINARY 0
91 #endif
92 
93 typedef int socklen_t;
94 
95 
96 void
97 _dbus_win_set_errno (int err)
98 {
99 #ifdef DBUS_WINCE
100  SetLastError (err);
101 #else
102  errno = err;
103 #endif
104 }
105 
106 
107 /* Convert GetLastError() to a dbus error. */
108 const char*
109 _dbus_win_error_from_last_error (void)
110 {
111  switch (GetLastError())
112  {
113  case 0:
114  return DBUS_ERROR_FAILED;
115 
116  case ERROR_NO_MORE_FILES:
117  case ERROR_TOO_MANY_OPEN_FILES:
118  return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
119 
120  case ERROR_ACCESS_DENIED:
121  case ERROR_CANNOT_MAKE:
123 
124  case ERROR_NOT_ENOUGH_MEMORY:
125  return DBUS_ERROR_NO_MEMORY;
126 
127  case ERROR_FILE_EXISTS:
128  return DBUS_ERROR_FILE_EXISTS;
129 
130  case ERROR_FILE_NOT_FOUND:
131  case ERROR_PATH_NOT_FOUND:
133  }
134 
135  return DBUS_ERROR_FAILED;
136 }
137 
138 
139 char*
140 _dbus_win_error_string (int error_number)
141 {
142  char *msg;
143 
144  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
145  FORMAT_MESSAGE_IGNORE_INSERTS |
146  FORMAT_MESSAGE_FROM_SYSTEM,
147  NULL, error_number, 0,
148  (LPSTR) &msg, 0, NULL);
149 
150  if (msg[strlen (msg) - 1] == '\n')
151  msg[strlen (msg) - 1] = '\0';
152  if (msg[strlen (msg) - 1] == '\r')
153  msg[strlen (msg) - 1] = '\0';
154 
155  return msg;
156 }
157 
158 void
159 _dbus_win_free_error_string (char *string)
160 {
161  LocalFree (string);
162 }
163 
184 int
186  DBusString *buffer,
187  int count)
188 {
189  int bytes_read;
190  int start;
191  char *data;
192 
193  _dbus_assert (count >= 0);
194 
195  start = _dbus_string_get_length (buffer);
196 
197  if (!_dbus_string_lengthen (buffer, count))
198  {
199  _dbus_win_set_errno (ENOMEM);
200  return -1;
201  }
202 
203  data = _dbus_string_get_data_len (buffer, start, count);
204 
205  again:
206 
207  _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
208  bytes_read = recv (fd, data, count, 0);
209 
210  if (bytes_read == SOCKET_ERROR)
211  {
212  DBUS_SOCKET_SET_ERRNO();
213  _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
214  bytes_read = -1;
215  }
216  else
217  _dbus_verbose ("recv: = %d\n", bytes_read);
218 
219  if (bytes_read < 0)
220  {
221  if (errno == EINTR)
222  goto again;
223  else
224  {
225  /* put length back (note that this doesn't actually realloc anything) */
226  _dbus_string_set_length (buffer, start);
227  return -1;
228  }
229  }
230  else
231  {
232  /* put length back (doesn't actually realloc) */
233  _dbus_string_set_length (buffer, start + bytes_read);
234 
235 #if 0
236  if (bytes_read > 0)
237  _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
238 #endif
239 
240  return bytes_read;
241  }
242 }
243 
254 int
256  const DBusString *buffer,
257  int start,
258  int len)
259 {
260  const char *data;
261  int bytes_written;
262 
263  data = _dbus_string_get_const_data_len (buffer, start, len);
264 
265  again:
266 
267  _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
268  bytes_written = send (fd, data, len, 0);
269 
270  if (bytes_written == SOCKET_ERROR)
271  {
272  DBUS_SOCKET_SET_ERRNO();
273  _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
274  bytes_written = -1;
275  }
276  else
277  _dbus_verbose ("send: = %d\n", bytes_written);
278 
279  if (bytes_written < 0 && errno == EINTR)
280  goto again;
281 
282 #if 0
283  if (bytes_written > 0)
284  _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
285 #endif
286 
287  return bytes_written;
288 }
289 
290 
300  DBusError *error)
301 {
302  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
303 
304  again:
305  if (closesocket (fd) == SOCKET_ERROR)
306  {
307  DBUS_SOCKET_SET_ERRNO ();
308 
309  if (errno == EINTR)
310  goto again;
311 
312  dbus_set_error (error, _dbus_error_from_errno (errno),
313  "Could not close socket: socket=%d, , %s",
315  return FALSE;
316  }
317  _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
318 
319  return TRUE;
320 }
321 
329 void
330 _dbus_fd_set_close_on_exec (intptr_t handle)
331 {
332  if ( !SetHandleInformation( (HANDLE) handle,
333  HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
334  0 /*disable both flags*/ ) )
335  {
336  _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
337  }
338 }
339 
348 _dbus_set_fd_nonblocking (int handle,
349  DBusError *error)
350 {
351  u_long one = 1;
352 
353  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
354 
355  if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
356  {
357  DBUS_SOCKET_SET_ERRNO ();
358  dbus_set_error (error, _dbus_error_from_errno (errno),
359  "Failed to set socket %d:%d to nonblocking: %s", handle,
361  return FALSE;
362  }
363 
364  return TRUE;
365 }
366 
367 
388 int
390  const DBusString *buffer1,
391  int start1,
392  int len1,
393  const DBusString *buffer2,
394  int start2,
395  int len2)
396 {
397  WSABUF vectors[2];
398  const char *data1;
399  const char *data2;
400  int rc;
401  DWORD bytes_written;
402 
403  _dbus_assert (buffer1 != NULL);
404  _dbus_assert (start1 >= 0);
405  _dbus_assert (start2 >= 0);
406  _dbus_assert (len1 >= 0);
407  _dbus_assert (len2 >= 0);
408 
409 
410  data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
411 
412  if (buffer2 != NULL)
413  data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
414  else
415  {
416  data2 = NULL;
417  start2 = 0;
418  len2 = 0;
419  }
420 
421  vectors[0].buf = (char*) data1;
422  vectors[0].len = len1;
423  vectors[1].buf = (char*) data2;
424  vectors[1].len = len2;
425 
426  again:
427 
428  _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
429  rc = WSASend (fd,
430  vectors,
431  data2 ? 2 : 1,
432  &bytes_written,
433  0,
434  NULL,
435  NULL);
436 
437  if (rc == SOCKET_ERROR)
438  {
439  DBUS_SOCKET_SET_ERRNO ();
440  _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
441  bytes_written = -1;
442  }
443  else
444  _dbus_verbose ("WSASend: = %ld\n", bytes_written);
445 
446  if (bytes_written < 0 && errno == EINTR)
447  goto again;
448 
449  return bytes_written;
450 }
451 
453 _dbus_socket_is_invalid (int fd)
454 {
455  return fd == INVALID_SOCKET ? TRUE : FALSE;
456 }
457 
458 #if 0
459 
468 int
469 _dbus_connect_named_pipe (const char *path,
470  DBusError *error)
471 {
472  _dbus_assert_not_reached ("not implemented");
473 }
474 
475 #endif
476 
477 
478 
479 void
480 _dbus_win_startup_winsock (void)
481 {
482  /* Straight from MSDN, deuglified */
483 
484  static dbus_bool_t beenhere = FALSE;
485 
486  WORD wVersionRequested;
487  WSADATA wsaData;
488  int err;
489 
490  if (beenhere)
491  return;
492 
493  wVersionRequested = MAKEWORD (2, 0);
494 
495  err = WSAStartup (wVersionRequested, &wsaData);
496  if (err != 0)
497  {
498  _dbus_assert_not_reached ("Could not initialize WinSock");
499  _dbus_abort ();
500  }
501 
502  /* Confirm that the WinSock DLL supports 2.0. Note that if the DLL
503  * supports versions greater than 2.0 in addition to 2.0, it will
504  * still return 2.0 in wVersion since that is the version we
505  * requested.
506  */
507  if (LOBYTE (wsaData.wVersion) != 2 ||
508  HIBYTE (wsaData.wVersion) != 0)
509  {
510  _dbus_assert_not_reached ("No usable WinSock found");
511  _dbus_abort ();
512  }
513 
514  beenhere = TRUE;
515 }
516 
517 
518 
519 
520 
521 
522 
523 
524 
525 /************************************************************************
526 
527  UTF / string code
528 
529  ************************************************************************/
530 
534 int _dbus_printf_string_upper_bound (const char *format,
535  va_list args)
536 {
537  /* MSVCRT's vsnprintf semantics are a bit different */
538  char buf[1024];
539  int bufsize;
540  int len;
541 
542  bufsize = sizeof (buf);
543  len = _vsnprintf (buf, bufsize - 1, format, args);
544 
545  while (len == -1) /* try again */
546  {
547  char *p;
548 
549  bufsize *= 2;
550 
551  p = malloc (bufsize);
552 
553  if (p == NULL)
554  return -1;
555 
556  len = _vsnprintf (p, bufsize - 1, format, args);
557  free (p);
558  }
559 
560  return len;
561 }
562 
563 
571 wchar_t *
572 _dbus_win_utf8_to_utf16 (const char *str,
573  DBusError *error)
574 {
575  DBusString s;
576  int n;
577  wchar_t *retval;
578 
579  _dbus_string_init_const (&s, str);
580 
581  if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
582  {
583  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
584  return NULL;
585  }
586 
587  n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
588 
589  if (n == 0)
590  {
591  _dbus_win_set_error_from_win_error (error, GetLastError ());
592  return NULL;
593  }
594 
595  retval = dbus_new (wchar_t, n);
596 
597  if (!retval)
598  {
599  _DBUS_SET_OOM (error);
600  return NULL;
601  }
602 
603  if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
604  {
605  dbus_free (retval);
606  dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
607  return NULL;
608  }
609 
610  return retval;
611 }
612 
620 char *
621 _dbus_win_utf16_to_utf8 (const wchar_t *str,
622  DBusError *error)
623 {
624  int n;
625  char *retval;
626 
627  n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
628 
629  if (n == 0)
630  {
631  _dbus_win_set_error_from_win_error (error, GetLastError ());
632  return NULL;
633  }
634 
635  retval = dbus_malloc (n);
636 
637  if (!retval)
638  {
639  _DBUS_SET_OOM (error);
640  return NULL;
641  }
642 
643  if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
644  {
645  dbus_free (retval);
646  dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
647  return NULL;
648  }
649 
650  return retval;
651 }
652 
653 
654 
655 
656 
657 
658 /************************************************************************
659 
660 
661  ************************************************************************/
662 
664 _dbus_win_account_to_sid (const wchar_t *waccount,
665  void **ppsid,
666  DBusError *error)
667 {
668  dbus_bool_t retval = FALSE;
669  DWORD sid_length, wdomain_length;
670  SID_NAME_USE use;
671  wchar_t *wdomain;
672 
673  *ppsid = NULL;
674 
675  sid_length = 0;
676  wdomain_length = 0;
677  if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
678  NULL, &wdomain_length, &use) &&
679  GetLastError () != ERROR_INSUFFICIENT_BUFFER)
680  {
681  _dbus_win_set_error_from_win_error (error, GetLastError ());
682  return FALSE;
683  }
684 
685  *ppsid = dbus_malloc (sid_length);
686  if (!*ppsid)
687  {
688  _DBUS_SET_OOM (error);
689  return FALSE;
690  }
691 
692  wdomain = dbus_new (wchar_t, wdomain_length);
693  if (!wdomain)
694  {
695  _DBUS_SET_OOM (error);
696  goto out1;
697  }
698 
699  if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
700  wdomain, &wdomain_length, &use))
701  {
702  _dbus_win_set_error_from_win_error (error, GetLastError ());
703  goto out2;
704  }
705 
706  if (!IsValidSid ((PSID) *ppsid))
707  {
708  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
709  goto out2;
710  }
711 
712  retval = TRUE;
713 
714 out2:
715  dbus_free (wdomain);
716 out1:
717  if (!retval)
718  {
719  dbus_free (*ppsid);
720  *ppsid = NULL;
721  }
722 
723  return retval;
724 }
725 
735 unsigned long
737 {
738  return _dbus_getpid ();
739 }
740 
741 
742 #ifndef DBUS_WINCE
743 
747 static dbus_bool_t
748 _dbus_getsid(char **sid)
749 {
750  HANDLE process_token = INVALID_HANDLE_VALUE;
751  TOKEN_USER *token_user = NULL;
752  DWORD n;
753  PSID psid;
754  int retval = FALSE;
755 
756  if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token))
757  {
758  _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
759  goto failed;
760  }
761  if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
762  && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
763  || (token_user = alloca (n)) == NULL
764  || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
765  {
766  _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
767  goto failed;
768  }
769  psid = token_user->User.Sid;
770  if (!IsValidSid (psid))
771  {
772  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
773  goto failed;
774  }
775  if (!ConvertSidToStringSidA (psid, sid))
776  {
777  _dbus_verbose("%s invalid sid\n",__FUNCTION__);
778  goto failed;
779  }
780 //okay:
781  retval = TRUE;
782 
783 failed:
784  if (process_token != INVALID_HANDLE_VALUE)
785  CloseHandle (process_token);
786 
787  _dbus_verbose("_dbus_getsid() returns %d\n",retval);
788  return retval;
789 }
790 #endif
791 
792 /************************************************************************
793 
794  pipes
795 
796  ************************************************************************/
797 
810  int *fd2,
811  dbus_bool_t blocking,
812  DBusError *error)
813 {
814  SOCKET temp, socket1 = -1, socket2 = -1;
815  struct sockaddr_in saddr;
816  int len;
817  u_long arg;
818 
819  _dbus_win_startup_winsock ();
820 
821  temp = socket (AF_INET, SOCK_STREAM, 0);
822  if (temp == INVALID_SOCKET)
823  {
824  DBUS_SOCKET_SET_ERRNO ();
825  goto out0;
826  }
827 
828  _DBUS_ZERO (saddr);
829  saddr.sin_family = AF_INET;
830  saddr.sin_port = 0;
831  saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
832 
833  if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
834  {
835  DBUS_SOCKET_SET_ERRNO ();
836  goto out0;
837  }
838 
839  if (listen (temp, 1) == SOCKET_ERROR)
840  {
841  DBUS_SOCKET_SET_ERRNO ();
842  goto out0;
843  }
844 
845  len = sizeof (saddr);
846  if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
847  {
848  DBUS_SOCKET_SET_ERRNO ();
849  goto out0;
850  }
851 
852  socket1 = socket (AF_INET, SOCK_STREAM, 0);
853  if (socket1 == INVALID_SOCKET)
854  {
855  DBUS_SOCKET_SET_ERRNO ();
856  goto out0;
857  }
858 
859  if (connect (socket1, (struct sockaddr *)&saddr, len) == SOCKET_ERROR)
860  {
861  DBUS_SOCKET_SET_ERRNO ();
862  goto out1;
863  }
864 
865  socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
866  if (socket2 == INVALID_SOCKET)
867  {
868  DBUS_SOCKET_SET_ERRNO ();
869  goto out1;
870  }
871 
872  if (!blocking)
873  {
874  arg = 1;
875  if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
876  {
877  DBUS_SOCKET_SET_ERRNO ();
878  goto out2;
879  }
880 
881  arg = 1;
882  if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
883  {
884  DBUS_SOCKET_SET_ERRNO ();
885  goto out2;
886  }
887  }
888 
889  *fd1 = socket1;
890  *fd2 = socket2;
891 
892  _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
893  *fd1, socket1, *fd2, socket2);
894 
895  closesocket (temp);
896 
897  return TRUE;
898 
899 out2:
900  closesocket (socket2);
901 out1:
902  closesocket (socket1);
903 out0:
904  closesocket (temp);
905 
906  dbus_set_error (error, _dbus_error_from_errno (errno),
907  "Could not setup socket pair: %s",
909 
910  return FALSE;
911 }
912 
921 int
923  int n_fds,
924  int timeout_milliseconds)
925 {
926 #define USE_CHRIS_IMPL 0
927 
928 #if USE_CHRIS_IMPL
929 
930 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
931  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
932  char *msgp;
933 
934  int ret = 0;
935  int i;
936  struct timeval tv;
937  int ready;
938 
939 #define DBUS_STACK_WSAEVENTS 256
940  WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
941  WSAEVENT *pEvents = NULL;
942  if (n_fds > DBUS_STACK_WSAEVENTS)
943  pEvents = calloc(sizeof(WSAEVENT), n_fds);
944  else
945  pEvents = eventsOnStack;
946 
947 
948 #ifdef DBUS_ENABLE_VERBOSE_MODE
949  msgp = msg;
950  msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
951  for (i = 0; i < n_fds; i++)
952  {
953  DBusPollFD *fdp = &fds[i];
954 
955 
956  if (fdp->events & _DBUS_POLLIN)
957  msgp += sprintf (msgp, "R:%d ", fdp->fd);
958 
959  if (fdp->events & _DBUS_POLLOUT)
960  msgp += sprintf (msgp, "W:%d ", fdp->fd);
961 
962  msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
963 
964  // FIXME: more robust code for long msg
965  // create on heap when msg[] becomes too small
966  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
967  {
968  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
969  }
970  }
971 
972  msgp += sprintf (msgp, "\n");
973  _dbus_verbose ("%s",msg);
974 #endif
975  for (i = 0; i < n_fds; i++)
976  {
977  DBusPollFD *fdp = &fds[i];
978  WSAEVENT ev;
979  long lNetworkEvents = FD_OOB;
980 
981  ev = WSACreateEvent();
982 
983  if (fdp->events & _DBUS_POLLIN)
984  lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
985 
986  if (fdp->events & _DBUS_POLLOUT)
987  lNetworkEvents |= FD_WRITE | FD_CONNECT;
988 
989  WSAEventSelect(fdp->fd, ev, lNetworkEvents);
990 
991  pEvents[i] = ev;
992  }
993 
994 
995  ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
996 
997  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
998  {
999  DBUS_SOCKET_SET_ERRNO ();
1000  if (errno != WSAEWOULDBLOCK)
1001  _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
1002  ret = -1;
1003  }
1004  else if (ready == WSA_WAIT_TIMEOUT)
1005  {
1006  _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
1007  ret = 0;
1008  }
1009  else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
1010  {
1011  msgp = msg;
1012  msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
1013 
1014  for (i = 0; i < n_fds; i++)
1015  {
1016  DBusPollFD *fdp = &fds[i];
1017  WSANETWORKEVENTS ne;
1018 
1019  fdp->revents = 0;
1020 
1021  WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
1022 
1023  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1024  fdp->revents |= _DBUS_POLLIN;
1025 
1026  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1027  fdp->revents |= _DBUS_POLLOUT;
1028 
1029  if (ne.lNetworkEvents & (FD_OOB))
1030  fdp->revents |= _DBUS_POLLERR;
1031 
1032  if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
1033  msgp += sprintf (msgp, "R:%d ", fdp->fd);
1034 
1035  if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
1036  msgp += sprintf (msgp, "W:%d ", fdp->fd);
1037 
1038  if (ne.lNetworkEvents & (FD_OOB))
1039  msgp += sprintf (msgp, "E:%d ", fdp->fd);
1040 
1041  msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
1042 
1043  if(ne.lNetworkEvents)
1044  ret++;
1045 
1046  WSAEventSelect(fdp->fd, pEvents[i], 0);
1047  }
1048 
1049  msgp += sprintf (msgp, "\n");
1050  _dbus_verbose ("%s",msg);
1051  }
1052  else
1053  {
1054  _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
1055  ret = -1;
1056  }
1057 
1058  for(i = 0; i < n_fds; i++)
1059  {
1060  WSACloseEvent(pEvents[i]);
1061  }
1062 
1063  if (n_fds > DBUS_STACK_WSAEVENTS)
1064  free(pEvents);
1065 
1066  return ret;
1067 
1068 #else /* USE_CHRIS_IMPL */
1069 
1070 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
1071  char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
1072  char *msgp;
1073 
1074  fd_set read_set, write_set, err_set;
1075  int max_fd = 0;
1076  int i;
1077  struct timeval tv;
1078  int ready;
1079 
1080  FD_ZERO (&read_set);
1081  FD_ZERO (&write_set);
1082  FD_ZERO (&err_set);
1083 
1084 
1085 #ifdef DBUS_ENABLE_VERBOSE_MODE
1086  msgp = msg;
1087  msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
1088  for (i = 0; i < n_fds; i++)
1089  {
1090  DBusPollFD *fdp = &fds[i];
1091 
1092 
1093  if (fdp->events & _DBUS_POLLIN)
1094  msgp += sprintf (msgp, "R:%d ", fdp->fd);
1095 
1096  if (fdp->events & _DBUS_POLLOUT)
1097  msgp += sprintf (msgp, "W:%d ", fdp->fd);
1098 
1099  msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1100 
1101  // FIXME: more robust code for long msg
1102  // create on heap when msg[] becomes too small
1103  if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
1104  {
1105  _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
1106  }
1107  }
1108 
1109  msgp += sprintf (msgp, "\n");
1110  _dbus_verbose ("%s",msg);
1111 #endif
1112  for (i = 0; i < n_fds; i++)
1113  {
1114  DBusPollFD *fdp = &fds[i];
1115 
1116  if (fdp->events & _DBUS_POLLIN)
1117  FD_SET (fdp->fd, &read_set);
1118 
1119  if (fdp->events & _DBUS_POLLOUT)
1120  FD_SET (fdp->fd, &write_set);
1121 
1122  FD_SET (fdp->fd, &err_set);
1123 
1124  max_fd = MAX (max_fd, fdp->fd);
1125  }
1126 
1127  // Avoid random lockups with send(), for lack of a better solution so far
1128  tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
1129  tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
1130 
1131  ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
1132 
1133  if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
1134  {
1135  DBUS_SOCKET_SET_ERRNO ();
1136  if (errno != WSAEWOULDBLOCK)
1137  _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
1138  }
1139  else if (ready == 0)
1140  _dbus_verbose ("select: = 0\n");
1141  else
1142  if (ready > 0)
1143  {
1144 #ifdef DBUS_ENABLE_VERBOSE_MODE
1145  msgp = msg;
1146  msgp += sprintf (msgp, "select: = %d:\n\t", ready);
1147 
1148  for (i = 0; i < n_fds; i++)
1149  {
1150  DBusPollFD *fdp = &fds[i];
1151 
1152  if (FD_ISSET (fdp->fd, &read_set))
1153  msgp += sprintf (msgp, "R:%d ", fdp->fd);
1154 
1155  if (FD_ISSET (fdp->fd, &write_set))
1156  msgp += sprintf (msgp, "W:%d ", fdp->fd);
1157 
1158  if (FD_ISSET (fdp->fd, &err_set))
1159  msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
1160  }
1161  msgp += sprintf (msgp, "\n");
1162  _dbus_verbose ("%s",msg);
1163 #endif
1164 
1165  for (i = 0; i < n_fds; i++)
1166  {
1167  DBusPollFD *fdp = &fds[i];
1168 
1169  fdp->revents = 0;
1170 
1171  if (FD_ISSET (fdp->fd, &read_set))
1172  fdp->revents |= _DBUS_POLLIN;
1173 
1174  if (FD_ISSET (fdp->fd, &write_set))
1175  fdp->revents |= _DBUS_POLLOUT;
1176 
1177  if (FD_ISSET (fdp->fd, &err_set))
1178  fdp->revents |= _DBUS_POLLERR;
1179  }
1180  }
1181  return ready;
1182 #endif /* USE_CHRIS_IMPL */
1183 }
1184 
1185 
1186 
1187 
1188 /******************************************************************************
1189 
1190 Original CVS version of dbus-sysdeps.c
1191 
1192 ******************************************************************************/
1193 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
1194 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
1195  *
1196  * Copyright (C) 2002, 2003 Red Hat, Inc.
1197  * Copyright (C) 2003 CodeFactory AB
1198  * Copyright (C) 2005 Novell, Inc.
1199  *
1200  * Licensed under the Academic Free License version 2.1
1201  *
1202  * This program is free software; you can redistribute it and/or modify
1203  * it under the terms of the GNU General Public License as published by
1204  * the Free Software Foundation; either version 2 of the License, or
1205  * (at your option) any later version.
1206  *
1207  * This program is distributed in the hope that it will be useful,
1208  * but WITHOUT ANY WARRANTY; without even the implied warranty of
1209  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1210  * GNU General Public License for more details.
1211  *
1212  * You should have received a copy of the GNU General Public License
1213  * along with this program; if not, write to the Free Software
1214  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1215  *
1216  */
1217 
1218 
1224 void
1225 _dbus_exit (int code)
1226 {
1227  _exit (code);
1228 }
1229 
1241 int
1242 _dbus_connect_tcp_socket (const char *host,
1243  const char *port,
1244  const char *family,
1245  DBusError *error)
1246 {
1247  return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
1248 }
1249 
1250 int
1251 _dbus_connect_tcp_socket_with_nonce (const char *host,
1252  const char *port,
1253  const char *family,
1254  const char *noncefile,
1255  DBusError *error)
1256 {
1257  int fd = -1, res;
1258  struct addrinfo hints;
1259  struct addrinfo *ai, *tmp;
1260 
1261  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1262 
1263  _dbus_win_startup_winsock ();
1264 
1265  _DBUS_ZERO (hints);
1266 
1267  if (!family)
1268  hints.ai_family = AF_UNSPEC;
1269  else if (!strcmp(family, "ipv4"))
1270  hints.ai_family = AF_INET;
1271  else if (!strcmp(family, "ipv6"))
1272  hints.ai_family = AF_INET6;
1273  else
1274  {
1275  dbus_set_error (error,
1277  "Unknown address family %s", family);
1278  return -1;
1279  }
1280  hints.ai_protocol = IPPROTO_TCP;
1281  hints.ai_socktype = SOCK_STREAM;
1282 #ifdef AI_ADDRCONFIG
1283  hints.ai_flags = AI_ADDRCONFIG;
1284 #else
1285  hints.ai_flags = 0;
1286 #endif
1287 
1288  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1289  {
1290  dbus_set_error (error,
1291  _dbus_error_from_errno (res),
1292  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1293  host, port, _dbus_strerror(res), res);
1294  return -1;
1295  }
1296 
1297  tmp = ai;
1298  while (tmp)
1299  {
1300  if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1301  {
1302  DBUS_SOCKET_SET_ERRNO ();
1303  dbus_set_error (error,
1304  _dbus_error_from_errno (errno),
1305  "Failed to open socket: %s",
1307  freeaddrinfo(ai);
1308  return -1;
1309  }
1310  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1311 
1312  if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1313  {
1314  DBUS_SOCKET_SET_ERRNO ();
1315  closesocket(fd);
1316  fd = -1;
1317  tmp = tmp->ai_next;
1318  continue;
1319  }
1320 
1321  break;
1322  }
1323  freeaddrinfo(ai);
1324 
1325  if (fd == -1)
1326  {
1327  dbus_set_error (error,
1328  _dbus_error_from_errno (errno),
1329  "Failed to connect to socket \"%s:%s\" %s",
1330  host, port, _dbus_strerror_from_errno ());
1331  return -1;
1332  }
1333 
1334  if (noncefile != NULL)
1335  {
1336  DBusString noncefileStr;
1337  dbus_bool_t ret;
1338  if (!_dbus_string_init (&noncefileStr) ||
1339  !_dbus_string_append(&noncefileStr, noncefile))
1340  {
1341  closesocket (fd);
1343  return -1;
1344  }
1345 
1346  ret = _dbus_send_nonce (fd, &noncefileStr, error);
1347 
1348  _dbus_string_free (&noncefileStr);
1349 
1350  if (!ret)
1351  {
1352  closesocket (fd);
1353  return -1;
1354  }
1355  }
1356 
1358 
1359  if (!_dbus_set_fd_nonblocking (fd, error))
1360  {
1361  closesocket (fd);
1362  return -1;
1363  }
1364 
1365  return fd;
1366 }
1367 
1383 int
1384 _dbus_listen_tcp_socket (const char *host,
1385  const char *port,
1386  const char *family,
1387  DBusString *retport,
1388  int **fds_p,
1389  DBusError *error)
1390 {
1391  int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
1392  struct addrinfo hints;
1393  struct addrinfo *ai, *tmp;
1394 
1395  // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
1396  //That's required for family == IPv6(which is the default on Vista if family is not given)
1397  //So we use our own union instead of sockaddr_gen:
1398 
1399  typedef union {
1400  struct sockaddr Address;
1401  struct sockaddr_in AddressIn;
1402  struct sockaddr_in6 AddressIn6;
1403  } mysockaddr_gen;
1404 
1405  *fds_p = NULL;
1406  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1407 
1408  _dbus_win_startup_winsock ();
1409 
1410  _DBUS_ZERO (hints);
1411 
1412  if (!family)
1413  hints.ai_family = AF_UNSPEC;
1414  else if (!strcmp(family, "ipv4"))
1415  hints.ai_family = AF_INET;
1416  else if (!strcmp(family, "ipv6"))
1417  hints.ai_family = AF_INET6;
1418  else
1419  {
1420  dbus_set_error (error,
1422  "Unknown address family %s", family);
1423  return -1;
1424  }
1425 
1426  hints.ai_protocol = IPPROTO_TCP;
1427  hints.ai_socktype = SOCK_STREAM;
1428 #ifdef AI_ADDRCONFIG
1429  hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
1430 #else
1431  hints.ai_flags = AI_PASSIVE;
1432 #endif
1433 
1434  redo_lookup_with_port:
1435  if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
1436  {
1437  dbus_set_error (error,
1438  _dbus_error_from_errno (res),
1439  "Failed to lookup host/port: \"%s:%s\": %s (%d)",
1440  host ? host : "*", port, _dbus_strerror(res), res);
1441  return -1;
1442  }
1443 
1444  tmp = ai;
1445  while (tmp)
1446  {
1447  int fd = -1, *newlisten_fd;
1448  if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
1449  {
1450  DBUS_SOCKET_SET_ERRNO ();
1451  dbus_set_error (error,
1452  _dbus_error_from_errno (errno),
1453  "Failed to open socket: %s",
1455  goto failed;
1456  }
1457  _DBUS_ASSERT_ERROR_IS_CLEAR(error);
1458 
1459  if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
1460  {
1461  DBUS_SOCKET_SET_ERRNO ();
1462  dbus_set_error (error, _dbus_error_from_errno (errno),
1463  "Failed to bind socket \"%s:%s\": %s",
1464  host ? host : "*", port, _dbus_strerror_from_errno ());
1465  closesocket (fd);
1466  goto failed;
1467  }
1468 
1469  if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
1470  {
1471  DBUS_SOCKET_SET_ERRNO ();
1472  dbus_set_error (error, _dbus_error_from_errno (errno),
1473  "Failed to listen on socket \"%s:%s\": %s",
1474  host ? host : "*", port, _dbus_strerror_from_errno ());
1475  closesocket (fd);
1476  goto failed;
1477  }
1478 
1479  newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
1480  if (!newlisten_fd)
1481  {
1482  closesocket (fd);
1484  "Failed to allocate file handle array");
1485  goto failed;
1486  }
1487  listen_fd = newlisten_fd;
1488  listen_fd[nlisten_fd] = fd;
1489  nlisten_fd++;
1490 
1491  if (!_dbus_string_get_length(retport))
1492  {
1493  /* If the user didn't specify a port, or used 0, then
1494  the kernel chooses a port. After the first address
1495  is bound to, we need to force all remaining addresses
1496  to use the same port */
1497  if (!port || !strcmp(port, "0"))
1498  {
1499  mysockaddr_gen addr;
1500  socklen_t addrlen = sizeof(addr);
1501  char portbuf[10];
1502 
1503  if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
1504  {
1505  DBUS_SOCKET_SET_ERRNO ();
1506  dbus_set_error (error, _dbus_error_from_errno (errno),
1507  "Failed to resolve port \"%s:%s\": %s",
1508  host ? host : "*", port, _dbus_strerror_from_errno());
1509  goto failed;
1510  }
1511  snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
1512  if (!_dbus_string_append(retport, portbuf))
1513  {
1515  goto failed;
1516  }
1517 
1518  /* Release current address list & redo lookup */
1519  port = _dbus_string_get_const_data(retport);
1520  freeaddrinfo(ai);
1521  goto redo_lookup_with_port;
1522  }
1523  else
1524  {
1525  if (!_dbus_string_append(retport, port))
1526  {
1528  goto failed;
1529  }
1530  }
1531  }
1532 
1533  tmp = tmp->ai_next;
1534  }
1535  freeaddrinfo(ai);
1536  ai = NULL;
1537 
1538  if (!nlisten_fd)
1539  {
1540  _dbus_win_set_errno (WSAEADDRINUSE);
1541  dbus_set_error (error, _dbus_error_from_errno (errno),
1542  "Failed to bind socket \"%s:%s\": %s",
1543  host ? host : "*", port, _dbus_strerror_from_errno ());
1544  return -1;
1545  }
1546 
1547  sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
1548 
1549  for (i = 0 ; i < nlisten_fd ; i++)
1550  {
1551  _dbus_fd_set_close_on_exec (listen_fd[i]);
1552  if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
1553  {
1554  goto failed;
1555  }
1556  }
1557 
1558  *fds_p = listen_fd;
1559 
1560  return nlisten_fd;
1561 
1562  failed:
1563  if (ai)
1564  freeaddrinfo(ai);
1565  for (i = 0 ; i < nlisten_fd ; i++)
1566  closesocket (listen_fd[i]);
1567  dbus_free(listen_fd);
1568  return -1;
1569 }
1570 
1571 
1579 int
1580 _dbus_accept (int listen_fd)
1581 {
1582  int client_fd;
1583 
1584  retry:
1585  client_fd = accept (listen_fd, NULL, NULL);
1586 
1587  if (DBUS_SOCKET_IS_INVALID (client_fd))
1588  {
1589  DBUS_SOCKET_SET_ERRNO ();
1590  if (errno == EINTR)
1591  goto retry;
1592  }
1593 
1594  _dbus_verbose ("client fd %d accepted\n", client_fd);
1595 
1596  return client_fd;
1597 }
1598 
1599 
1600 
1601 
1604  DBusError *error)
1605 {
1606 /* FIXME: for the session bus credentials shouldn't matter (?), but
1607  * for the system bus they are presumably essential. A rough outline
1608  * of a way to implement the credential transfer would be this:
1609  *
1610  * client waits to *read* a byte.
1611  *
1612  * server creates a named pipe with a random name, sends a byte
1613  * contining its length, and its name.
1614  *
1615  * client reads the name, connects to it (using Win32 API).
1616  *
1617  * server waits for connection to the named pipe, then calls
1618  * ImpersonateNamedPipeClient(), notes its now-current credentials,
1619  * calls RevertToSelf(), closes its handles to the named pipe, and
1620  * is done. (Maybe there is some other way to get the SID of a named
1621  * pipe client without having to use impersonation?)
1622  *
1623  * client closes its handles and is done.
1624  *
1625  * Ralf: Why not sending credentials over the given this connection ?
1626  * Using named pipes makes it impossible to be connected from a unix client.
1627  *
1628  */
1629  int bytes_written;
1630  DBusString buf;
1631 
1632  _dbus_string_init_const_len (&buf, "\0", 1);
1633 again:
1634  bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
1635 
1636  if (bytes_written < 0 && errno == EINTR)
1637  goto again;
1638 
1639  if (bytes_written < 0)
1640  {
1641  dbus_set_error (error, _dbus_error_from_errno (errno),
1642  "Failed to write credentials byte: %s",
1644  return FALSE;
1645  }
1646  else if (bytes_written == 0)
1647  {
1649  "wrote zero bytes writing credentials byte");
1650  return FALSE;
1651  }
1652  else
1653  {
1654  _dbus_assert (bytes_written == 1);
1655  _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
1656  return TRUE;
1657  }
1658  return TRUE;
1659 }
1660 
1681  DBusCredentials *credentials,
1682  DBusError *error)
1683 {
1684  int bytes_read = 0;
1685  DBusString buf;
1686 
1687  // could fail due too OOM
1688  if (_dbus_string_init(&buf))
1689  {
1690  bytes_read = _dbus_read_socket(handle, &buf, 1 );
1691 
1692  if (bytes_read > 0)
1693  _dbus_verbose("got one zero byte from server");
1694 
1695  _dbus_string_free(&buf);
1696  }
1697 
1699  _dbus_verbose("FIXME: get faked credentials from current process");
1700 
1701  return TRUE;
1702 }
1703 
1714 {
1715  /* TODO */
1716  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1717  return TRUE;
1718 }
1719 
1720 
1733  const DBusString *next_component)
1734 {
1735  dbus_bool_t dir_ends_in_slash;
1736  dbus_bool_t file_starts_with_slash;
1737 
1738  if (_dbus_string_get_length (dir) == 0 ||
1739  _dbus_string_get_length (next_component) == 0)
1740  return TRUE;
1741 
1742  dir_ends_in_slash =
1743  ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
1744  '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
1745 
1746  file_starts_with_slash =
1747  ('/' == _dbus_string_get_byte (next_component, 0) ||
1748  '\\' == _dbus_string_get_byte (next_component, 0));
1749 
1750  if (dir_ends_in_slash && file_starts_with_slash)
1751  {
1752  _dbus_string_shorten (dir, 1);
1753  }
1754  else if (!(dir_ends_in_slash || file_starts_with_slash))
1755  {
1756  if (!_dbus_string_append_byte (dir, '\\'))
1757  return FALSE;
1758  }
1759 
1760  return _dbus_string_copy (next_component, 0, dir,
1761  _dbus_string_get_length (dir));
1762 }
1763 
1764 /*---------------- DBusCredentials ----------------------------------*/
1765 
1775  const DBusString *username)
1776 {
1777  return _dbus_credentials_add_windows_sid (credentials,
1778  _dbus_string_get_const_data(username));
1779 }
1780 
1791 {
1792  dbus_bool_t retval = FALSE;
1793  char *sid = NULL;
1794 
1795  if (!_dbus_getsid(&sid))
1796  goto failed;
1797 
1798  if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
1799  goto failed;
1800 
1801  if (!_dbus_credentials_add_windows_sid (credentials,sid))
1802  goto failed;
1803 
1804  retval = TRUE;
1805  goto end;
1806 failed:
1807  retval = FALSE;
1808 end:
1809  if (sid)
1810  LocalFree(sid);
1811 
1812  return retval;
1813 }
1814 
1829 {
1830  dbus_bool_t retval = FALSE;
1831  char *sid = NULL;
1832 
1833  if (!_dbus_getsid(&sid))
1834  return FALSE;
1835 
1836  retval = _dbus_string_append (str,sid);
1837 
1838  LocalFree(sid);
1839  return retval;
1840 }
1841 
1846 dbus_pid_t
1848 {
1849  return GetCurrentProcessId ();
1850 }
1851 
1853 #define NANOSECONDS_PER_SECOND 1000000000
1854 
1855 #define MICROSECONDS_PER_SECOND 1000000
1856 
1857 #define MILLISECONDS_PER_SECOND 1000
1858 
1859 #define NANOSECONDS_PER_MILLISECOND 1000000
1860 
1861 #define MICROSECONDS_PER_MILLISECOND 1000
1862 
1867 void
1868 _dbus_sleep_milliseconds (int milliseconds)
1869 {
1870  Sleep (milliseconds);
1871 }
1872 
1873 
1881 void
1882 _dbus_get_real_time (long *tv_sec,
1883  long *tv_usec)
1884 {
1885  FILETIME ft;
1886  dbus_uint64_t time64;
1887 
1888  GetSystemTimeAsFileTime (&ft);
1889 
1890  memcpy (&time64, &ft, sizeof (time64));
1891 
1892  /* Convert from 100s of nanoseconds since 1601-01-01
1893  * to Unix epoch. Yes, this is Y2038 unsafe.
1894  */
1895  time64 -= DBUS_INT64_CONSTANT (116444736000000000);
1896  time64 /= 10;
1897 
1898  if (tv_sec)
1899  *tv_sec = time64 / 1000000;
1900 
1901  if (tv_usec)
1902  *tv_usec = time64 % 1000000;
1903 }
1904 
1912 void
1914  long *tv_usec)
1915 {
1916  /* no implementation yet, fall back to wall-clock time */
1917  _dbus_get_real_time (tv_sec, tv_usec);
1918 }
1919 
1923 void
1925 {
1926 }
1927 
1938  DBusError *error)
1939 {
1940  const char *filename_c;
1941 
1942  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
1943 
1944  filename_c = _dbus_string_get_const_data (filename);
1945 
1946  if (!CreateDirectoryA (filename_c, NULL))
1947  {
1948  if (GetLastError () == ERROR_ALREADY_EXISTS)
1949  return TRUE;
1950 
1952  "Failed to create directory %s: %s\n",
1953  filename_c, _dbus_strerror_from_errno ());
1954  return FALSE;
1955  }
1956  else
1957  return TRUE;
1958 }
1959 
1960 
1971  int n_bytes)
1972 {
1973  int old_len;
1974  char *p;
1975  HCRYPTPROV hprov;
1976 
1977  old_len = _dbus_string_get_length (str);
1978 
1979  if (!_dbus_string_lengthen (str, n_bytes))
1980  return FALSE;
1981 
1982  p = _dbus_string_get_data_len (str, old_len, n_bytes);
1983 
1984  if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
1985  return FALSE;
1986 
1987  if (!CryptGenRandom (hprov, n_bytes, p))
1988  {
1989  CryptReleaseContext (hprov, 0);
1990  return FALSE;
1991  }
1992 
1993  CryptReleaseContext (hprov, 0);
1994 
1995  return TRUE;
1996 }
1997 
2004 const char*
2006 {
2007  static const char* tmpdir = NULL;
2008  static char buf[1000];
2009 
2010  if (tmpdir == NULL)
2011  {
2012  char *last_slash;
2013 
2014  if (!GetTempPathA (sizeof (buf), buf))
2015  {
2016  _dbus_warn ("GetTempPath failed\n");
2017  _dbus_abort ();
2018  }
2019 
2020  /* Drop terminating backslash or slash */
2021  last_slash = _mbsrchr (buf, '\\');
2022  if (last_slash > buf && last_slash[1] == '\0')
2023  last_slash[0] = '\0';
2024  last_slash = _mbsrchr (buf, '/');
2025  if (last_slash > buf && last_slash[1] == '\0')
2026  last_slash[0] = '\0';
2027 
2028  tmpdir = buf;
2029  }
2030 
2031  _dbus_assert(tmpdir != NULL);
2032 
2033  return tmpdir;
2034 }
2035 
2036 
2047  DBusError *error)
2048 {
2049  const char *filename_c;
2050 
2051  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2052 
2053  filename_c = _dbus_string_get_const_data (filename);
2054 
2055  if (DeleteFileA (filename_c) == 0)
2056  {
2058  "Failed to delete file %s: %s\n",
2059  filename_c, _dbus_strerror_from_errno ());
2060  return FALSE;
2061  }
2062  else
2063  return TRUE;
2064 }
2065 
2066 /*
2067  * replaces the term DBUS_PREFIX in configure_time_path by the
2068  * current dbus installation directory. On unix this function is a noop
2069  *
2070  * @param configure_time_path
2071  * @return real path
2072  */
2073 const char *
2074 _dbus_replace_install_prefix (const char *configure_time_path)
2075 {
2076 #ifndef DBUS_PREFIX
2077  return configure_time_path;
2078 #else
2079  static char retval[1000];
2080  static char runtime_prefix[1000];
2081  int len = 1000;
2082  int i;
2083 
2084  if (!configure_time_path)
2085  return NULL;
2086 
2087  if ((!_dbus_get_install_root(runtime_prefix, len) ||
2088  strncmp (configure_time_path, DBUS_PREFIX "/",
2089  strlen (DBUS_PREFIX) + 1))) {
2090  strcat (retval, configure_time_path);
2091  return retval;
2092  }
2093 
2094  strcpy (retval, runtime_prefix);
2095  strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
2096 
2097  /* Somehow, in some situations, backslashes get collapsed in the string.
2098  * Since windows C library accepts both forward and backslashes as
2099  * path separators, convert all backslashes to forward slashes.
2100  */
2101 
2102  for(i = 0; retval[i] != '\0'; i++) {
2103  if(retval[i] == '\\')
2104  retval[i] = '/';
2105  }
2106  return retval;
2107 #endif
2108 }
2109 
2110 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
2111 
2112 #if defined(_MSC_VER) || defined(DBUS_WINCE)
2113 # ifdef BACKTRACES
2114 # undef BACKTRACES
2115 # endif
2116 #else
2117 # define BACKTRACES
2118 #endif
2119 
2120 #ifdef BACKTRACES
2121 /*
2122  * Backtrace Generator
2123  *
2124  * Copyright 2004 Eric Poech
2125  * Copyright 2004 Robert Shearman
2126  *
2127  * This library is free software; you can redistribute it and/or
2128  * modify it under the terms of the GNU Lesser General Public
2129  * License as published by the Free Software Foundation; either
2130  * version 2.1 of the License, or (at your option) any later version.
2131  *
2132  * This library is distributed in the hope that it will be useful,
2133  * but WITHOUT ANY WARRANTY; without even the implied warranty of
2134  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2135  * Lesser General Public License for more details.
2136  *
2137  * You should have received a copy of the GNU Lesser General Public
2138  * License along with this library; if not, write to the Free Software
2139  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
2140  */
2141 
2142 #include <winver.h>
2143 #include <imagehlp.h>
2144 #include <stdio.h>
2145 
2146 #define DPRINTF _dbus_warn
2147 
2148 #ifdef _MSC_VER
2149 #define BOOL int
2150 
2151 #define __i386__
2152 #endif
2153 
2154 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
2155 
2156 //MAKE_FUNCPTR(StackWalk);
2157 //MAKE_FUNCPTR(SymGetModuleBase);
2158 //MAKE_FUNCPTR(SymFunctionTableAccess);
2159 //MAKE_FUNCPTR(SymInitialize);
2160 //MAKE_FUNCPTR(SymGetSymFromAddr);
2161 //MAKE_FUNCPTR(SymGetModuleInfo);
2162 static BOOL (WINAPI *pStackWalk)(
2163  DWORD MachineType,
2164  HANDLE hProcess,
2165  HANDLE hThread,
2166  LPSTACKFRAME StackFrame,
2167  PVOID ContextRecord,
2168  PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2169  PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2170  PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2171  PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2172 );
2173 #ifdef _WIN64
2174 static DWORD64 (WINAPI *pSymGetModuleBase)(
2175  HANDLE hProcess,
2176  DWORD64 dwAddr
2177 );
2178 static PVOID (WINAPI *pSymFunctionTableAccess)(
2179  HANDLE hProcess,
2180  DWORD64 AddrBase
2181 );
2182 #else
2183 static DWORD (WINAPI *pSymGetModuleBase)(
2184  HANDLE hProcess,
2185  DWORD dwAddr
2186 );
2187 static PVOID (WINAPI *pSymFunctionTableAccess)(
2188  HANDLE hProcess,
2189  DWORD AddrBase
2190 );
2191 #endif
2192 static BOOL (WINAPI *pSymInitialize)(
2193  HANDLE hProcess,
2194  PSTR UserSearchPath,
2195  BOOL fInvadeProcess
2196 );
2197 static BOOL (WINAPI *pSymGetSymFromAddr)(
2198  HANDLE hProcess,
2199  DWORD Address,
2200  PDWORD Displacement,
2201  PIMAGEHLP_SYMBOL Symbol
2202 );
2203 static BOOL (WINAPI *pSymGetModuleInfo)(
2204  HANDLE hProcess,
2205  DWORD dwAddr,
2206  PIMAGEHLP_MODULE ModuleInfo
2207 );
2208 static DWORD (WINAPI *pSymSetOptions)(
2209  DWORD SymOptions
2210 );
2211 
2212 
2213 static BOOL init_backtrace()
2214 {
2215  HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
2216 /*
2217  #define GETFUNC(x) \
2218  p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
2219  if (!p##x) \
2220  { \
2221  return FALSE; \
2222  }
2223  */
2224 
2225 
2226 // GETFUNC(StackWalk);
2227 // GETFUNC(SymGetModuleBase);
2228 // GETFUNC(SymFunctionTableAccess);
2229 // GETFUNC(SymInitialize);
2230 // GETFUNC(SymGetSymFromAddr);
2231 // GETFUNC(SymGetModuleInfo);
2232 
2233 #define FUNC(x) #x
2234 
2235  pStackWalk = (BOOL (WINAPI *)(
2236 DWORD MachineType,
2237 HANDLE hProcess,
2238 HANDLE hThread,
2239 LPSTACKFRAME StackFrame,
2240 PVOID ContextRecord,
2241 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
2242 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
2243 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
2244 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
2245 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
2246 #ifdef _WIN64
2247  pSymGetModuleBase=(DWORD64 (WINAPI *)(
2248  HANDLE hProcess,
2249  DWORD64 dwAddr
2250 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2251  pSymFunctionTableAccess=(PVOID (WINAPI *)(
2252  HANDLE hProcess,
2253  DWORD64 AddrBase
2254 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2255 #else
2256  pSymGetModuleBase=(DWORD (WINAPI *)(
2257  HANDLE hProcess,
2258  DWORD dwAddr
2259 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
2260  pSymFunctionTableAccess=(PVOID (WINAPI *)(
2261  HANDLE hProcess,
2262  DWORD AddrBase
2263 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
2264 #endif
2265  pSymInitialize = (BOOL (WINAPI *)(
2266  HANDLE hProcess,
2267  PSTR UserSearchPath,
2268  BOOL fInvadeProcess
2269 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
2270  pSymGetSymFromAddr = (BOOL (WINAPI *)(
2271  HANDLE hProcess,
2272  DWORD Address,
2273  PDWORD Displacement,
2274  PIMAGEHLP_SYMBOL Symbol
2275 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
2276  pSymGetModuleInfo = (BOOL (WINAPI *)(
2277  HANDLE hProcess,
2278  DWORD dwAddr,
2279  PIMAGEHLP_MODULE ModuleInfo
2280 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
2281 pSymSetOptions = (DWORD (WINAPI *)(
2282 DWORD SymOptions
2283 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
2284 
2285 
2286  pSymSetOptions(SYMOPT_UNDNAME);
2287 
2288  pSymInitialize(GetCurrentProcess(), NULL, TRUE);
2289 
2290  return TRUE;
2291 }
2292 
2293 static void dump_backtrace_for_thread(HANDLE hThread)
2294 {
2295  STACKFRAME sf;
2296  CONTEXT context;
2297  DWORD dwImageType;
2298 
2299  if (!pStackWalk)
2300  if (!init_backtrace())
2301  return;
2302 
2303  /* can't use this function for current thread as GetThreadContext
2304  * doesn't support getting context from current thread */
2305  if (hThread == GetCurrentThread())
2306  return;
2307 
2308  DPRINTF("Backtrace:\n");
2309 
2310  _DBUS_ZERO(context);
2311  context.ContextFlags = CONTEXT_FULL;
2312 
2313  SuspendThread(hThread);
2314 
2315  if (!GetThreadContext(hThread, &context))
2316  {
2317  DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
2318  ResumeThread(hThread);
2319  return;
2320  }
2321 
2322  _DBUS_ZERO(sf);
2323 
2324 #ifdef __i386__
2325  sf.AddrFrame.Offset = context.Ebp;
2326  sf.AddrFrame.Mode = AddrModeFlat;
2327  sf.AddrPC.Offset = context.Eip;
2328  sf.AddrPC.Mode = AddrModeFlat;
2329  dwImageType = IMAGE_FILE_MACHINE_I386;
2330 #elif _M_X64
2331  dwImageType = IMAGE_FILE_MACHINE_AMD64;
2332  sf.AddrPC.Offset = context.Rip;
2333  sf.AddrPC.Mode = AddrModeFlat;
2334  sf.AddrFrame.Offset = context.Rsp;
2335  sf.AddrFrame.Mode = AddrModeFlat;
2336  sf.AddrStack.Offset = context.Rsp;
2337  sf.AddrStack.Mode = AddrModeFlat;
2338 #elif _M_IA64
2339  dwImageType = IMAGE_FILE_MACHINE_IA64;
2340  sf.AddrPC.Offset = context.StIIP;
2341  sf.AddrPC.Mode = AddrModeFlat;
2342  sf.AddrFrame.Offset = context.IntSp;
2343  sf.AddrFrame.Mode = AddrModeFlat;
2344  sf.AddrBStore.Offset= context.RsBSP;
2345  sf.AddrBStore.Mode = AddrModeFlat;
2346  sf.AddrStack.Offset = context.IntSp;
2347  sf.AddrStack.Mode = AddrModeFlat;
2348 #else
2349 # error You need to fill in the STACKFRAME structure for your architecture
2350 #endif
2351 
2352  while (pStackWalk(dwImageType, GetCurrentProcess(),
2353  hThread, &sf, &context, NULL, pSymFunctionTableAccess,
2354  pSymGetModuleBase, NULL))
2355  {
2356  BYTE buffer[256];
2357  IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
2358  DWORD dwDisplacement;
2359 
2360  pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
2361  pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
2362 
2363  if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
2364  &dwDisplacement, pSymbol))
2365  {
2366  IMAGEHLP_MODULE ModuleInfo;
2367  ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
2368 
2369  if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
2370  &ModuleInfo))
2371  DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
2372  else
2373  DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
2374  sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
2375  }
2376  else if (dwDisplacement)
2377  DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
2378  else
2379  DPRINTF("4\t%s\n", pSymbol->Name);
2380  }
2381 
2382  ResumeThread(hThread);
2383 }
2384 
2385 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
2386 {
2387  dump_backtrace_for_thread((HANDLE)lpParameter);
2388  return 0;
2389 }
2390 
2391 /* cannot get valid context from current thread, so we have to execute
2392  * backtrace from another thread */
2393 static void dump_backtrace()
2394 {
2395  HANDLE hCurrentThread;
2396  HANDLE hThread;
2397  DWORD dwThreadId;
2398  DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
2399  GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
2400  hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
2401  0, &dwThreadId);
2402  WaitForSingleObject(hThread, INFINITE);
2403  CloseHandle(hThread);
2404  CloseHandle(hCurrentThread);
2405 }
2406 #endif
2407 #endif /* asserts or tests enabled */
2408 
2409 #ifdef BACKTRACES
2411 {
2412  init_backtrace();
2413  dump_backtrace();
2414 }
2415 #else
2416 void _dbus_print_backtrace(void)
2417 {
2418  _dbus_verbose (" D-Bus not compiled with backtrace support\n");
2419 }
2420 #endif
2421 
2422 static dbus_uint32_t fromAscii(char ascii)
2423 {
2424  if(ascii >= '0' && ascii <= '9')
2425  return ascii - '0';
2426  if(ascii >= 'A' && ascii <= 'F')
2427  return ascii - 'A' + 10;
2428  if(ascii >= 'a' && ascii <= 'f')
2429  return ascii - 'a' + 10;
2430  return 0;
2431 }
2432 
2434  dbus_bool_t create_if_not_found,
2435  DBusError *error)
2436 {
2437 #ifdef DBUS_WINCE
2438  return TRUE;
2439  // TODO
2440 #else
2441  HW_PROFILE_INFOA info;
2442  char *lpc = &info.szHwProfileGuid[0];
2443  dbus_uint32_t u;
2444 
2445  // the hw-profile guid lives long enough
2446  if(!GetCurrentHwProfileA(&info))
2447  {
2448  dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
2449  return FALSE;
2450  }
2451 
2452  // Form: {12340001-4980-1920-6788-123456789012}
2453  lpc++;
2454  // 12340001
2455  u = ((fromAscii(lpc[0]) << 0) |
2456  (fromAscii(lpc[1]) << 4) |
2457  (fromAscii(lpc[2]) << 8) |
2458  (fromAscii(lpc[3]) << 12) |
2459  (fromAscii(lpc[4]) << 16) |
2460  (fromAscii(lpc[5]) << 20) |
2461  (fromAscii(lpc[6]) << 24) |
2462  (fromAscii(lpc[7]) << 28));
2463  machine_id->as_uint32s[0] = u;
2464 
2465  lpc += 9;
2466  // 4980-1920
2467  u = ((fromAscii(lpc[0]) << 0) |
2468  (fromAscii(lpc[1]) << 4) |
2469  (fromAscii(lpc[2]) << 8) |
2470  (fromAscii(lpc[3]) << 12) |
2471  (fromAscii(lpc[5]) << 16) |
2472  (fromAscii(lpc[6]) << 20) |
2473  (fromAscii(lpc[7]) << 24) |
2474  (fromAscii(lpc[8]) << 28));
2475  machine_id->as_uint32s[1] = u;
2476 
2477  lpc += 10;
2478  // 6788-1234
2479  u = ((fromAscii(lpc[0]) << 0) |
2480  (fromAscii(lpc[1]) << 4) |
2481  (fromAscii(lpc[2]) << 8) |
2482  (fromAscii(lpc[3]) << 12) |
2483  (fromAscii(lpc[5]) << 16) |
2484  (fromAscii(lpc[6]) << 20) |
2485  (fromAscii(lpc[7]) << 24) |
2486  (fromAscii(lpc[8]) << 28));
2487  machine_id->as_uint32s[2] = u;
2488 
2489  lpc += 9;
2490  // 56789012
2491  u = ((fromAscii(lpc[0]) << 0) |
2492  (fromAscii(lpc[1]) << 4) |
2493  (fromAscii(lpc[2]) << 8) |
2494  (fromAscii(lpc[3]) << 12) |
2495  (fromAscii(lpc[4]) << 16) |
2496  (fromAscii(lpc[5]) << 20) |
2497  (fromAscii(lpc[6]) << 24) |
2498  (fromAscii(lpc[7]) << 28));
2499  machine_id->as_uint32s[3] = u;
2500 #endif
2501  return TRUE;
2502 }
2503 
2504 static
2505 HANDLE _dbus_global_lock (const char *mutexname)
2506 {
2507  HANDLE mutex;
2508  DWORD gotMutex;
2509 
2510  mutex = CreateMutexA( NULL, FALSE, mutexname );
2511  if( !mutex )
2512  {
2513  return FALSE;
2514  }
2515 
2516  gotMutex = WaitForSingleObject( mutex, INFINITE );
2517  switch( gotMutex )
2518  {
2519  case WAIT_ABANDONED:
2520  ReleaseMutex (mutex);
2521  CloseHandle (mutex);
2522  return 0;
2523  case WAIT_FAILED:
2524  case WAIT_TIMEOUT:
2525  return 0;
2526  }
2527 
2528  return mutex;
2529 }
2530 
2531 static
2532 void _dbus_global_unlock (HANDLE mutex)
2533 {
2534  ReleaseMutex (mutex);
2535  CloseHandle (mutex);
2536 }
2537 
2538 // for proper cleanup in dbus-daemon
2539 static HANDLE hDBusDaemonMutex = NULL;
2540 static HANDLE hDBusSharedMem = NULL;
2541 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2542 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
2543 // sync _dbus_get_autolaunch_address
2544 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
2545 // mutex to determine if dbus-daemon is already started (per user)
2546 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
2547 // named shm for dbus adress info (per user)
2548 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
2549 
2550 static dbus_bool_t
2551 _dbus_get_install_root_as_hash(DBusString *out)
2552 {
2553  DBusString install_path;
2554 
2555  char path[MAX_PATH*2];
2556  int path_size = sizeof(path);
2557 
2558  if (!_dbus_get_install_root(path,path_size))
2559  return FALSE;
2560 
2561  _dbus_string_init(&install_path);
2562  _dbus_string_append(&install_path,path);
2563 
2564  _dbus_string_init(out);
2565  _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
2566 
2567  if (!_dbus_sha_compute (&install_path, out))
2568  return FALSE;
2569 
2570  return TRUE;
2571 }
2572 
2573 static dbus_bool_t
2574 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
2575 {
2576  _dbus_string_init(out);
2577  _dbus_string_append(out,basestring);
2578 
2579  if (!scope)
2580  {
2581  return TRUE;
2582  }
2583  else if (strcmp(scope,"*install-path") == 0
2584  // for 1.3 compatibility
2585  || strcmp(scope,"install-path") == 0)
2586  {
2587  DBusString temp;
2588  if (!_dbus_get_install_root_as_hash(&temp))
2589  {
2590  _dbus_string_free(out);
2591  return FALSE;
2592  }
2593  _dbus_string_append(out,"-");
2594  _dbus_string_append(out,_dbus_string_get_const_data(&temp));
2595  _dbus_string_free(&temp);
2596  }
2597  else if (strcmp(scope,"*user") == 0)
2598  {
2599  _dbus_string_append(out,"-");
2601  {
2602  _dbus_string_free(out);
2603  return FALSE;
2604  }
2605  }
2606  else if (strlen(scope) > 0)
2607  {
2608  _dbus_string_append(out,"-");
2609  _dbus_string_append(out,scope);
2610  return TRUE;
2611  }
2612  return TRUE;
2613 }
2614 
2615 static dbus_bool_t
2616 _dbus_get_shm_name (DBusString *out,const char *scope)
2617 {
2618  return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
2619 }
2620 
2621 static dbus_bool_t
2622 _dbus_get_mutex_name (DBusString *out,const char *scope)
2623 {
2624  return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
2625 }
2626 
2628 _dbus_daemon_is_session_bus_address_published (const char *scope)
2629 {
2630  HANDLE lock;
2631  DBusString mutex_name;
2632 
2633  if (!_dbus_get_mutex_name(&mutex_name,scope))
2634  {
2635  _dbus_string_free( &mutex_name );
2636  return FALSE;
2637  }
2638 
2639  if (hDBusDaemonMutex)
2640  return TRUE;
2641 
2642  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2643  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2644 
2645  // we use CreateMutex instead of OpenMutex because of possible race conditions,
2646  // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
2647  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2648 
2649  /* The client uses mutex ownership to detect a running server, so the server should do so too.
2650  Fortunally the client deletes the mutex in the lock protected area, so checking presence
2651  will work too. */
2652 
2653  _dbus_global_unlock( lock );
2654 
2655  _dbus_string_free( &mutex_name );
2656 
2657  if (hDBusDaemonMutex == NULL)
2658  return FALSE;
2659  if (GetLastError() == ERROR_ALREADY_EXISTS)
2660  {
2661  CloseHandle(hDBusDaemonMutex);
2662  hDBusDaemonMutex = NULL;
2663  return TRUE;
2664  }
2665  // mutex wasn't created before, so return false.
2666  // We leave the mutex name allocated for later reusage
2667  // in _dbus_daemon_publish_session_bus_address.
2668  return FALSE;
2669 }
2670 
2672 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
2673 {
2674  HANDLE lock;
2675  char *shared_addr = NULL;
2676  DBusString shm_name;
2677  DBusString mutex_name;
2678 
2679  _dbus_assert (address);
2680 
2681  if (!_dbus_get_mutex_name(&mutex_name,scope))
2682  {
2683  _dbus_string_free( &mutex_name );
2684  return FALSE;
2685  }
2686 
2687  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2688  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2689 
2690  if (!hDBusDaemonMutex)
2691  {
2692  hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2693  }
2694  _dbus_string_free( &mutex_name );
2695 
2696  // acquire the mutex
2697  if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
2698  {
2699  _dbus_global_unlock( lock );
2700  CloseHandle( hDBusDaemonMutex );
2701  return FALSE;
2702  }
2703 
2704  if (!_dbus_get_shm_name(&shm_name,scope))
2705  {
2706  _dbus_string_free( &shm_name );
2707  _dbus_global_unlock( lock );
2708  return FALSE;
2709  }
2710 
2711  // create shm
2712  hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
2713  0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
2714  _dbus_assert( hDBusSharedMem );
2715 
2716  shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
2717 
2718  _dbus_assert (shared_addr);
2719 
2720  strcpy( shared_addr, address);
2721 
2722  // cleanup
2723  UnmapViewOfFile( shared_addr );
2724 
2725  _dbus_global_unlock( lock );
2726  _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
2727 
2728  _dbus_string_free( &shm_name );
2729  return TRUE;
2730 }
2731 
2732 void
2733 _dbus_daemon_unpublish_session_bus_address (void)
2734 {
2735  HANDLE lock;
2736 
2737  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2738  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2739 
2740  CloseHandle( hDBusSharedMem );
2741 
2742  hDBusSharedMem = NULL;
2743 
2744  ReleaseMutex( hDBusDaemonMutex );
2745 
2746  CloseHandle( hDBusDaemonMutex );
2747 
2748  hDBusDaemonMutex = NULL;
2749 
2750  _dbus_global_unlock( lock );
2751 }
2752 
2753 static dbus_bool_t
2754 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
2755 {
2756  HANDLE sharedMem;
2757  char *shared_addr;
2758  int i;
2759 
2760  // read shm
2761  for(i=0;i<20;++i) {
2762  // we know that dbus-daemon is available, so we wait until shm is available
2763  sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
2764  if( sharedMem == 0 )
2765  Sleep( 100 );
2766  if ( sharedMem != 0)
2767  break;
2768  }
2769 
2770  if( sharedMem == 0 )
2771  return FALSE;
2772 
2773  shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
2774 
2775  if( !shared_addr )
2776  return FALSE;
2777 
2778  _dbus_string_init( address );
2779 
2780  _dbus_string_append( address, shared_addr );
2781 
2782  // cleanup
2783  UnmapViewOfFile( shared_addr );
2784 
2785  CloseHandle( sharedMem );
2786 
2787  return TRUE;
2788 }
2789 
2790 static dbus_bool_t
2791 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
2792 {
2793  HANDLE lock;
2794  HANDLE daemon;
2795  DBusString mutex_name;
2796  dbus_bool_t bRet = TRUE;
2797 
2798  if (!_dbus_get_mutex_name(&mutex_name,scope))
2799  {
2800  _dbus_string_free( &mutex_name );
2801  return FALSE;
2802  }
2803 
2804  // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
2805  lock = _dbus_global_lock( cUniqueDBusInitMutex );
2806 
2807  // do checks
2808  daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
2809  if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
2810  {
2811  ReleaseMutex (daemon);
2812  CloseHandle (daemon);
2813 
2814  _dbus_global_unlock( lock );
2815  _dbus_string_free( &mutex_name );
2816  return FALSE;
2817  }
2818 
2819  // read shm
2820  bRet = _dbus_get_autolaunch_shm( address, shm_name );
2821 
2822  // cleanup
2823  CloseHandle ( daemon );
2824 
2825  _dbus_global_unlock( lock );
2826  _dbus_string_free( &mutex_name );
2827 
2828  return bRet;
2829 }
2830 
2832 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
2833  DBusError *error)
2834 {
2835  HANDLE mutex;
2836  STARTUPINFOA si;
2837  PROCESS_INFORMATION pi;
2838  dbus_bool_t retval = FALSE;
2839  LPSTR lpFile;
2840  char dbus_exe_path[MAX_PATH];
2841  char dbus_args[MAX_PATH * 2];
2842  const char * daemon_name = DBUS_DAEMON_NAME ".exe";
2843  DBusString shm_name;
2844 
2845  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2846 
2847  if (!_dbus_get_shm_name(&shm_name,scope))
2848  {
2849  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
2850  return FALSE;
2851  }
2852 
2853  mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
2854 
2855  if (_dbus_daemon_already_runs(address,&shm_name,scope))
2856  {
2857  _dbus_verbose( "found running dbus daemon at %s\n",
2858  _dbus_string_get_const_data (&shm_name) );
2859  retval = TRUE;
2860  goto out;
2861  }
2862 
2863  if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2864  {
2865  // Look in directory containing dbus shared library
2866  HMODULE hmod;
2867  char dbus_module_path[MAX_PATH];
2868  DWORD rc;
2869 
2870  _dbus_verbose( "did not found dbus daemon executable on default search path, "
2871  "trying path where dbus shared library is located");
2872 
2873  hmod = _dbus_win_get_dll_hmodule();
2874  rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
2875  if (rc <= 0)
2876  {
2877  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
2878  retval = FALSE;
2879  goto out;
2880  }
2881  else
2882  {
2883  char *ext_idx = strrchr(dbus_module_path, '\\');
2884  if (ext_idx)
2885  *ext_idx = '\0';
2886  if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
2887  {
2888  dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
2889  retval = FALSE;
2890  printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
2891  printf ("or start the daemon manually\n\n");
2892  goto out;
2893  }
2894  _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
2895  }
2896  }
2897 
2898 
2899  // Create process
2900  ZeroMemory( &si, sizeof(si) );
2901  si.cb = sizeof(si);
2902  ZeroMemory( &pi, sizeof(pi) );
2903 
2904  _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path, " --session");
2905 
2906 // argv[i] = "--config-file=bus\\session.conf";
2907 // printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
2908  if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
2909  {
2910  CloseHandle (pi.hThread);
2911  CloseHandle (pi.hProcess);
2912  retval = _dbus_get_autolaunch_shm( address, &shm_name );
2913  if (retval == FALSE)
2914  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
2915  }
2916  else
2917  {
2918  dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
2919  retval = FALSE;
2920  }
2921 
2922 out:
2923  if (retval)
2924  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
2925  else
2926  _DBUS_ASSERT_ERROR_IS_SET (error);
2927 
2928  _dbus_global_unlock (mutex);
2929 
2930  return retval;
2931  }
2932 
2933 
2942  DBusError *error)
2943 {
2944  // TODO
2945  return TRUE;
2946 }
2947 
2954 static const char *
2955 _dbus_windows_get_datadir (void)
2956 {
2957  return _dbus_replace_install_prefix(DBUS_DATADIR);
2958 }
2959 
2960 #undef DBUS_DATADIR
2961 #define DBUS_DATADIR _dbus_windows_get_datadir ()
2962 
2963 
2964 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
2965 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
2966 
2983 dbus_bool_t
2985 {
2986  const char *common_progs;
2987  DBusString servicedir_path;
2988 
2989  if (!_dbus_string_init (&servicedir_path))
2990  return FALSE;
2991 
2992 #ifdef DBUS_WINCE
2993  {
2994  /* On Windows CE, we adjust datadir dynamically to installation location. */
2995  const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
2996 
2997  if (data_dir != NULL)
2998  {
2999  if (!_dbus_string_append (&servicedir_path, data_dir))
3000  goto oom;
3001 
3002  if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3003  goto oom;
3004  }
3005  }
3006 #else
3007 /*
3008  the code for accessing services requires absolute base pathes
3009  in case DBUS_DATADIR is relative make it absolute
3010 */
3011 #ifdef DBUS_WIN
3012  {
3013  DBusString p;
3014 
3015  _dbus_string_init_const (&p, DBUS_DATADIR);
3016 
3017  if (!_dbus_path_is_absolute (&p))
3018  {
3019  char install_root[1000];
3020  if (_dbus_get_install_root (install_root, sizeof(install_root)))
3021  if (!_dbus_string_append (&servicedir_path, install_root))
3022  goto oom;
3023  }
3024  }
3025 #endif
3026  if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
3027  goto oom;
3028 
3029  if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3030  goto oom;
3031 #endif
3032 
3033  common_progs = _dbus_getenv ("CommonProgramFiles");
3034 
3035  if (common_progs != NULL)
3036  {
3037  if (!_dbus_string_append (&servicedir_path, common_progs))
3038  goto oom;
3039 
3040  if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
3041  goto oom;
3042  }
3043 
3044  if (!_dbus_split_paths_and_append (&servicedir_path,
3045  DBUS_STANDARD_SESSION_SERVICEDIR,
3046  dirs))
3047  goto oom;
3048 
3049  _dbus_string_free (&servicedir_path);
3050  return TRUE;
3051 
3052  oom:
3053  _dbus_string_free (&servicedir_path);
3054  return FALSE;
3055 }
3056 
3077 {
3078  *dirs = NULL;
3079  return TRUE;
3080 }
3081 
3082 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
3083 
3091 dbus_int32_t
3093 {
3094  // +/- 1 is needed here!
3095  // no volatile argument with mingw
3096  return InterlockedIncrement (&atomic->value) - 1;
3097 }
3098 
3106 dbus_int32_t
3108 {
3109  // +/- 1 is needed here!
3110  // no volatile argument with mingw
3111  return InterlockedDecrement (&atomic->value) + 1;
3112 }
3113 
3121 dbus_int32_t
3123 {
3124  /* this is what GLib does, hopefully it's right... */
3125  MemoryBarrier ();
3126  return atomic->value;
3127 }
3128 
3136 void
3138 {
3139 }
3140 
3149 {
3150  return errno == WSAEWOULDBLOCK;
3151 }
3152 
3161 _dbus_get_install_root(char *prefix, int len)
3162 {
3163  //To find the prefix, we cut the filename and also \bin\ if present
3164  DWORD pathLength;
3165  char *lastSlash;
3166  SetLastError( 0 );
3167  pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
3168  if ( pathLength == 0 || GetLastError() != 0 ) {
3169  *prefix = '\0';
3170  return FALSE;
3171  }
3172  lastSlash = _mbsrchr(prefix, '\\');
3173  if (lastSlash == NULL) {
3174  *prefix = '\0';
3175  return FALSE;
3176  }
3177  //cut off binary name
3178  lastSlash[1] = 0;
3179 
3180  //cut possible "\\bin"
3181 
3182  //this fails if we are in a double-byte system codepage and the
3183  //folder's name happens to end with the *bytes*
3184  //"\\bin"... (I.e. the second byte of some Han character and then
3185  //the Latin "bin", but that is not likely I think...
3186  if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
3187  lastSlash[-3] = 0;
3188  else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
3189  lastSlash[-9] = 0;
3190  else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
3191  lastSlash[-11] = 0;
3192 
3193  return TRUE;
3194 }
3195 
3209 dbus_bool_t
3210 _dbus_get_config_file_name(DBusString *config_file, char *s)
3211 {
3212  char path[MAX_PATH*2];
3213  int path_size = sizeof(path);
3214 
3215  if (!_dbus_get_install_root(path,path_size))
3216  return FALSE;
3217 
3218  if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3219  return FALSE;
3220  strcat(path,"etc\\");
3221  strcat(path,s);
3222  if (_dbus_file_exists(path))
3223  {
3224  // find path from executable
3225  if (!_dbus_string_append (config_file, path))
3226  return FALSE;
3227  }
3228  else
3229  {
3230  if (!_dbus_get_install_root(path,path_size))
3231  return FALSE;
3232  if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
3233  return FALSE;
3234  strcat(path,"etc\\dbus-1\\");
3235  strcat(path,s);
3236 
3237  if (_dbus_file_exists(path))
3238  {
3239  if (!_dbus_string_append (config_file, path))
3240  return FALSE;
3241  }
3242  else
3243  {
3244  if (!_dbus_get_install_root(path,path_size))
3245  return FALSE;
3246  if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
3247  return FALSE;
3248  strcat(path,"bus\\");
3249  strcat(path,s);
3250 
3251  if (_dbus_file_exists(path))
3252  {
3253  if (!_dbus_string_append (config_file, path))
3254  return FALSE;
3255  }
3256  }
3257  }
3258  return TRUE;
3259 }
3260 
3271 {
3272  return _dbus_get_config_file_name(str, "system.conf");
3273 }
3274 
3283 {
3284  return _dbus_get_config_file_name(str, "session.conf");
3285 }
3286 
3287 /* See comment in dbus-sysdeps-unix.c */
3290  DBusString *address,
3291  DBusError *error)
3292 {
3293  /* Probably fill this in with something based on COM? */
3294  *supported = FALSE;
3295  return TRUE;
3296 }
3297 
3313  DBusCredentials *credentials)
3314 {
3315  DBusString homedir;
3316  DBusString dotdir;
3317  const char *homepath;
3318  const char *homedrive;
3319 
3320  _dbus_assert (credentials != NULL);
3322 
3323  if (!_dbus_string_init (&homedir))
3324  return FALSE;
3325 
3326  homedrive = _dbus_getenv("HOMEDRIVE");
3327  if (homedrive != NULL && *homedrive != '\0')
3328  {
3329  _dbus_string_append(&homedir,homedrive);
3330  }
3331 
3332  homepath = _dbus_getenv("HOMEPATH");
3333  if (homepath != NULL && *homepath != '\0')
3334  {
3335  _dbus_string_append(&homedir,homepath);
3336  }
3337 
3338 #ifdef DBUS_BUILD_TESTS
3339  {
3340  const char *override;
3341 
3342  override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
3343  if (override != NULL && *override != '\0')
3344  {
3345  _dbus_string_set_length (&homedir, 0);
3346  if (!_dbus_string_append (&homedir, override))
3347  goto failed;
3348 
3349  _dbus_verbose ("Using fake homedir for testing: %s\n",
3350  _dbus_string_get_const_data (&homedir));
3351  }
3352  else
3353  {
3354  static dbus_bool_t already_warned = FALSE;
3355  if (!already_warned)
3356  {
3357  _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
3358  already_warned = TRUE;
3359  }
3360  }
3361  }
3362 #endif
3363 
3364 #ifdef DBUS_WINCE
3365  /* It's not possible to create a .something directory in Windows CE
3366  using the file explorer. */
3367 #define KEYRING_DIR "dbus-keyrings"
3368 #else
3369 #define KEYRING_DIR ".dbus-keyrings"
3370 #endif
3371 
3372  _dbus_string_init_const (&dotdir, KEYRING_DIR);
3373  if (!_dbus_concat_dir_and_file (&homedir,
3374  &dotdir))
3375  goto failed;
3376 
3377  if (!_dbus_string_copy (&homedir, 0,
3378  directory, _dbus_string_get_length (directory))) {
3379  goto failed;
3380  }
3381 
3382  _dbus_string_free (&homedir);
3383  return TRUE;
3384 
3385  failed:
3386  _dbus_string_free (&homedir);
3387  return FALSE;
3388 }
3389 
3395 dbus_bool_t
3396 _dbus_file_exists (const char *file)
3397 {
3398  DWORD attributes = GetFileAttributesA (file);
3399 
3400  if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
3401  return TRUE;
3402  else
3403  return FALSE;
3404 }
3405 
3413 const char*
3414 _dbus_strerror (int error_number)
3415 {
3416 #ifdef DBUS_WINCE
3417  // TODO
3418  return "unknown";
3419 #else
3420  const char *msg;
3421 
3422  switch (error_number)
3423  {
3424  case WSAEINTR:
3425  return "Interrupted function call";
3426  case WSAEACCES:
3427  return "Permission denied";
3428  case WSAEFAULT:
3429  return "Bad address";
3430  case WSAEINVAL:
3431  return "Invalid argument";
3432  case WSAEMFILE:
3433  return "Too many open files";
3434  case WSAEWOULDBLOCK:
3435  return "Resource temporarily unavailable";
3436  case WSAEINPROGRESS:
3437  return "Operation now in progress";
3438  case WSAEALREADY:
3439  return "Operation already in progress";
3440  case WSAENOTSOCK:
3441  return "Socket operation on nonsocket";
3442  case WSAEDESTADDRREQ:
3443  return "Destination address required";
3444  case WSAEMSGSIZE:
3445  return "Message too long";
3446  case WSAEPROTOTYPE:
3447  return "Protocol wrong type for socket";
3448  case WSAENOPROTOOPT:
3449  return "Bad protocol option";
3450  case WSAEPROTONOSUPPORT:
3451  return "Protocol not supported";
3452  case WSAESOCKTNOSUPPORT:
3453  return "Socket type not supported";
3454  case WSAEOPNOTSUPP:
3455  return "Operation not supported";
3456  case WSAEPFNOSUPPORT:
3457  return "Protocol family not supported";
3458  case WSAEAFNOSUPPORT:
3459  return "Address family not supported by protocol family";
3460  case WSAEADDRINUSE:
3461  return "Address already in use";
3462  case WSAEADDRNOTAVAIL:
3463  return "Cannot assign requested address";
3464  case WSAENETDOWN:
3465  return "Network is down";
3466  case WSAENETUNREACH:
3467  return "Network is unreachable";
3468  case WSAENETRESET:
3469  return "Network dropped connection on reset";
3470  case WSAECONNABORTED:
3471  return "Software caused connection abort";
3472  case WSAECONNRESET:
3473  return "Connection reset by peer";
3474  case WSAENOBUFS:
3475  return "No buffer space available";
3476  case WSAEISCONN:
3477  return "Socket is already connected";
3478  case WSAENOTCONN:
3479  return "Socket is not connected";
3480  case WSAESHUTDOWN:
3481  return "Cannot send after socket shutdown";
3482  case WSAETIMEDOUT:
3483  return "Connection timed out";
3484  case WSAECONNREFUSED:
3485  return "Connection refused";
3486  case WSAEHOSTDOWN:
3487  return "Host is down";
3488  case WSAEHOSTUNREACH:
3489  return "No route to host";
3490  case WSAEPROCLIM:
3491  return "Too many processes";
3492  case WSAEDISCON:
3493  return "Graceful shutdown in progress";
3494  case WSATYPE_NOT_FOUND:
3495  return "Class type not found";
3496  case WSAHOST_NOT_FOUND:
3497  return "Host not found";
3498  case WSATRY_AGAIN:
3499  return "Nonauthoritative host not found";
3500  case WSANO_RECOVERY:
3501  return "This is a nonrecoverable error";
3502  case WSANO_DATA:
3503  return "Valid name, no data record of requested type";
3504  case WSA_INVALID_HANDLE:
3505  return "Specified event object handle is invalid";
3506  case WSA_INVALID_PARAMETER:
3507  return "One or more parameters are invalid";
3508  case WSA_IO_INCOMPLETE:
3509  return "Overlapped I/O event object not in signaled state";
3510  case WSA_IO_PENDING:
3511  return "Overlapped operations will complete later";
3512  case WSA_NOT_ENOUGH_MEMORY:
3513  return "Insufficient memory available";
3514  case WSA_OPERATION_ABORTED:
3515  return "Overlapped operation aborted";
3516 #ifdef WSAINVALIDPROCTABLE
3517 
3518  case WSAINVALIDPROCTABLE:
3519  return "Invalid procedure table from service provider";
3520 #endif
3521 #ifdef WSAINVALIDPROVIDER
3522 
3523  case WSAINVALIDPROVIDER:
3524  return "Invalid service provider version number";
3525 #endif
3526 #ifdef WSAPROVIDERFAILEDINIT
3527 
3528  case WSAPROVIDERFAILEDINIT:
3529  return "Unable to initialize a service provider";
3530 #endif
3531 
3532  case WSASYSCALLFAILURE:
3533  return "System call failure";
3534  }
3535  msg = strerror (error_number);
3536  if (msg == NULL)
3537  msg = "unknown";
3538 
3539  return msg;
3540 #endif //DBUS_WINCE
3541 }
3542 
3550 void
3551 _dbus_win_set_error_from_win_error (DBusError *error,
3552  int code)
3553 {
3554  char *msg;
3555 
3556  /* As we want the English message, use the A API */
3557  FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
3558  FORMAT_MESSAGE_IGNORE_INSERTS |
3559  FORMAT_MESSAGE_FROM_SYSTEM,
3560  NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
3561  (LPSTR) &msg, 0, NULL);
3562  if (msg)
3563  {
3564  char *msg_copy;
3565 
3566  msg_copy = dbus_malloc (strlen (msg));
3567  strcpy (msg_copy, msg);
3568  LocalFree (msg);
3569 
3570  dbus_set_error (error, "win32.error", "%s", msg_copy);
3571  }
3572  else
3573  dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
3574 }
3575 
3576 void
3577 _dbus_win_warn_win_error (const char *message,
3578  int code)
3579 {
3580  DBusError error;
3581 
3582  dbus_error_init (&error);
3583  _dbus_win_set_error_from_win_error (&error, code);
3584  _dbus_warn ("%s: %s\n", message, error.message);
3585  dbus_error_free (&error);
3586 }
3587 
3597  DBusError *error)
3598 {
3599  const char *filename_c;
3600 
3601  _DBUS_ASSERT_ERROR_IS_CLEAR (error);
3602 
3603  filename_c = _dbus_string_get_const_data (filename);
3604 
3605  if (RemoveDirectoryA (filename_c) == 0)
3606  {
3607  char *emsg = _dbus_win_error_string (GetLastError ());
3608  dbus_set_error (error, _dbus_win_error_from_last_error (),
3609  "Failed to remove directory %s: %s",
3610  filename_c, emsg);
3611  _dbus_win_free_error_string (emsg);
3612  return FALSE;
3613  }
3614 
3615  return TRUE;
3616 }
3617 
3626 {
3627  if (_dbus_string_get_length (filename) > 0)
3628  return _dbus_string_get_byte (filename, 1) == ':'
3629  || _dbus_string_get_byte (filename, 0) == '\\'
3630  || _dbus_string_get_byte (filename, 0) == '/';
3631  else
3632  return FALSE;
3633 }
3634 
3637 {
3638  return FALSE;
3639 }
3640 
3642 /* tests in dbus-sysdeps-util.c */
3643