D-Bus 1.4.20

dbus-sysdeps-win.c

00001 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
00002 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-BUS implementation)
00003  * 
00004  * Copyright (C) 2002, 2003  Red Hat, Inc.
00005  * Copyright (C) 2003 CodeFactory AB
00006  * Copyright (C) 2005 Novell, Inc.
00007  * Copyright (C) 2006 Peter Kümmel  <syntheticpp@gmx.net>
00008  * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.de>
00009  * Copyright (C) 2006-2010 Ralf Habacker <ralf.habacker@freenet.de>
00010  *
00011  * Licensed under the Academic Free License version 2.1
00012  * 
00013  * This program is free software; you can redistribute it and/or modify
00014  * it under the terms of the GNU General Public License as published by
00015  * the Free Software Foundation; either version 2 of the License, or
00016  * (at your option) any later version.
00017  *
00018  * This program is distributed in the hope that it will be useful,
00019  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00020  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00021  * GNU General Public License for more details.
00022  * 
00023  * You should have received a copy of the GNU General Public License
00024  * along with this program; if not, write to the Free Software
00025  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00026  *
00027  */
00028 
00029 #include <config.h>
00030 
00031 #define STRSAFE_NO_DEPRECATE
00032 
00033 #ifndef DBUS_WINCE
00034 #ifndef _WIN32_WINNT
00035 #define _WIN32_WINNT 0x0501
00036 #endif
00037 #endif
00038 
00039 #include "dbus-internals.h"
00040 #include "dbus-sha.h"
00041 #include "dbus-sysdeps.h"
00042 #include "dbus-threads.h"
00043 #include "dbus-protocol.h"
00044 #include "dbus-string.h"
00045 #include "dbus-sysdeps.h"
00046 #include "dbus-sysdeps-win.h"
00047 #include "dbus-protocol.h"
00048 #include "dbus-hash.h"
00049 #include "dbus-sockets-win.h"
00050 #include "dbus-list.h"
00051 #include "dbus-nonce.h"
00052 #include "dbus-credentials.h"
00053 
00054 #include <windows.h>
00055 #include <ws2tcpip.h>
00056 #include <wincrypt.h>
00057 
00058 /* Declarations missing in mingw's headers */
00059 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR  StringSid, PSID *Sid);
00060 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
00061 
00062 #include <stdio.h>
00063 
00064 #include <string.h>
00065 #if HAVE_ERRNO_H
00066 #include <errno.h>
00067 #endif
00068 #ifndef DBUS_WINCE
00069 #include <mbstring.h>
00070 #include <sys/stat.h>
00071 #include <sys/types.h>
00072 #endif
00073 
00074 #ifdef HAVE_WS2TCPIP_H
00075 /* getaddrinfo for Windows CE (and Windows).  */
00076 #include <ws2tcpip.h>
00077 #endif
00078 
00079 #ifdef HAVE_WSPIAPI_H
00080 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
00081 #ifdef __GNUC__
00082 #define _inline
00083 #include "wspiapi.h"
00084 #else
00085 #include <wspiapi.h>
00086 #endif
00087 #endif // HAVE_WSPIAPI_H
00088 
00089 #ifndef O_BINARY
00090 #define O_BINARY 0
00091 #endif
00092 
00093 typedef int socklen_t;
00094 
00095 
00096 void
00097 _dbus_win_set_errno (int err)
00098 {
00099 #ifdef DBUS_WINCE
00100   SetLastError (err);
00101 #else
00102   errno = err;
00103 #endif
00104 }
00105 
00106 
00107 /* Convert GetLastError() to a dbus error.  */
00108 const char*
00109 _dbus_win_error_from_last_error (void)
00110 {
00111   switch (GetLastError())
00112     {
00113     case 0:
00114       return DBUS_ERROR_FAILED;
00115     
00116     case ERROR_NO_MORE_FILES:
00117     case ERROR_TOO_MANY_OPEN_FILES:
00118       return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
00119 
00120     case ERROR_ACCESS_DENIED:
00121     case ERROR_CANNOT_MAKE:
00122       return DBUS_ERROR_ACCESS_DENIED;
00123 
00124     case ERROR_NOT_ENOUGH_MEMORY:
00125       return DBUS_ERROR_NO_MEMORY;
00126 
00127     case ERROR_FILE_EXISTS:
00128       return DBUS_ERROR_FILE_EXISTS;
00129 
00130     case ERROR_FILE_NOT_FOUND:
00131     case ERROR_PATH_NOT_FOUND:
00132       return DBUS_ERROR_FILE_NOT_FOUND;
00133     }
00134   
00135   return DBUS_ERROR_FAILED;
00136 }
00137 
00138 
00139 char*
00140 _dbus_win_error_string (int error_number)
00141 {
00142   char *msg;
00143 
00144   FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
00145                   FORMAT_MESSAGE_IGNORE_INSERTS |
00146                   FORMAT_MESSAGE_FROM_SYSTEM,
00147                   NULL, error_number, 0,
00148                   (LPSTR) &msg, 0, NULL);
00149 
00150   if (msg[strlen (msg) - 1] == '\n')
00151     msg[strlen (msg) - 1] = '\0';
00152   if (msg[strlen (msg) - 1] == '\r')
00153     msg[strlen (msg) - 1] = '\0';
00154 
00155   return msg;
00156 }
00157 
00158 void
00159 _dbus_win_free_error_string (char *string)
00160 {
00161   LocalFree (string);
00162 }
00163 
00184 int
00185 _dbus_read_socket (int               fd,
00186                    DBusString       *buffer,
00187                    int               count)
00188 {
00189   int bytes_read;
00190   int start;
00191   char *data;
00192 
00193   _dbus_assert (count >= 0);
00194 
00195   start = _dbus_string_get_length (buffer);
00196 
00197   if (!_dbus_string_lengthen (buffer, count))
00198     {
00199       _dbus_win_set_errno (ENOMEM);
00200       return -1;
00201     }
00202 
00203   data = _dbus_string_get_data_len (buffer, start, count);
00204 
00205  again:
00206  
00207   _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
00208   bytes_read = recv (fd, data, count, 0);
00209   
00210   if (bytes_read == SOCKET_ERROR)
00211         {
00212           DBUS_SOCKET_SET_ERRNO();
00213           _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
00214           bytes_read = -1;
00215         }
00216         else
00217           _dbus_verbose ("recv: = %d\n", bytes_read);
00218 
00219   if (bytes_read < 0)
00220     {
00221       if (errno == EINTR)
00222         goto again;
00223       else      
00224         {
00225           /* put length back (note that this doesn't actually realloc anything) */
00226           _dbus_string_set_length (buffer, start);
00227           return -1;
00228         }
00229     }
00230   else
00231     {
00232       /* put length back (doesn't actually realloc) */
00233       _dbus_string_set_length (buffer, start + bytes_read);
00234 
00235 #if 0
00236       if (bytes_read > 0)
00237         _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
00238 #endif
00239 
00240       return bytes_read;
00241     }
00242 }
00243 
00254 int
00255 _dbus_write_socket (int               fd,
00256                     const DBusString *buffer,
00257                     int               start,
00258                     int               len)
00259 {
00260   const char *data;
00261   int bytes_written;
00262 
00263   data = _dbus_string_get_const_data_len (buffer, start, len);
00264 
00265  again:
00266 
00267   _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
00268   bytes_written = send (fd, data, len, 0);
00269 
00270   if (bytes_written == SOCKET_ERROR)
00271     {
00272       DBUS_SOCKET_SET_ERRNO();
00273       _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
00274       bytes_written = -1;
00275     }
00276     else
00277       _dbus_verbose ("send: = %d\n", bytes_written);
00278 
00279   if (bytes_written < 0 && errno == EINTR)
00280     goto again;
00281     
00282 #if 0
00283   if (bytes_written > 0)
00284     _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
00285 #endif
00286 
00287   return bytes_written;
00288 }
00289 
00290 
00298 dbus_bool_t
00299 _dbus_close_socket (int        fd,
00300                     DBusError *error)
00301 {
00302   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00303 
00304  again:
00305   if (closesocket (fd) == SOCKET_ERROR)
00306     {
00307       DBUS_SOCKET_SET_ERRNO ();
00308       
00309       if (errno == EINTR)
00310         goto again;
00311         
00312       dbus_set_error (error, _dbus_error_from_errno (errno),
00313                       "Could not close socket: socket=%d, , %s",
00314                       fd, _dbus_strerror_from_errno ());
00315       return FALSE;
00316     }
00317   _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
00318 
00319   return TRUE;
00320 }
00321 
00329 void
00330 _dbus_fd_set_close_on_exec (intptr_t handle)
00331 {
00332   if ( !SetHandleInformation( (HANDLE) handle,
00333                         HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
00334                         0 /*disable both flags*/ ) )
00335     {
00336       _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
00337     }
00338 }
00339 
00347 dbus_bool_t
00348 _dbus_set_fd_nonblocking (int             handle,
00349                           DBusError      *error)
00350 {
00351   u_long one = 1;
00352 
00353   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00354 
00355   if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
00356     {
00357       DBUS_SOCKET_SET_ERRNO ();
00358       dbus_set_error (error, _dbus_error_from_errno (errno),
00359                       "Failed to set socket %d:%d to nonblocking: %s", handle,
00360                       _dbus_strerror_from_errno ());
00361       return FALSE;
00362     }
00363 
00364   return TRUE;
00365 }
00366 
00367 
00388 int
00389 _dbus_write_socket_two (int               fd,
00390                         const DBusString *buffer1,
00391                         int               start1,
00392                         int               len1,
00393                         const DBusString *buffer2,
00394                         int               start2,
00395                         int               len2)
00396 {
00397   WSABUF vectors[2];
00398   const char *data1;
00399   const char *data2;
00400   int rc;
00401   DWORD bytes_written;
00402 
00403   _dbus_assert (buffer1 != NULL);
00404   _dbus_assert (start1 >= 0);
00405   _dbus_assert (start2 >= 0);
00406   _dbus_assert (len1 >= 0);
00407   _dbus_assert (len2 >= 0);
00408 
00409 
00410   data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
00411 
00412   if (buffer2 != NULL)
00413     data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
00414   else
00415     {
00416       data2 = NULL;
00417       start2 = 0;
00418       len2 = 0;
00419     }
00420 
00421   vectors[0].buf = (char*) data1;
00422   vectors[0].len = len1;
00423   vectors[1].buf = (char*) data2;
00424   vectors[1].len = len2;
00425 
00426  again:
00427  
00428   _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
00429   rc = WSASend (fd, 
00430                 vectors,
00431                 data2 ? 2 : 1, 
00432                 &bytes_written,
00433                 0, 
00434                 NULL, 
00435                 NULL);
00436                 
00437   if (rc == SOCKET_ERROR)
00438     {
00439       DBUS_SOCKET_SET_ERRNO ();
00440       _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
00441       bytes_written = -1;
00442     }
00443   else
00444     _dbus_verbose ("WSASend: = %ld\n", bytes_written);
00445     
00446   if (bytes_written < 0 && errno == EINTR)
00447     goto again;
00448       
00449   return bytes_written;
00450 }
00451 
00452 dbus_bool_t
00453 _dbus_socket_is_invalid (int fd)
00454 {
00455     return fd == INVALID_SOCKET ? TRUE : FALSE;
00456 }
00457 
00458 #if 0
00459 
00468 int
00469 _dbus_connect_named_pipe (const char     *path,
00470                           DBusError      *error)
00471 {
00472   _dbus_assert_not_reached ("not implemented");
00473 }
00474 
00475 #endif
00476 
00477 
00478 
00479 void
00480 _dbus_win_startup_winsock (void)
00481 {
00482   /* Straight from MSDN, deuglified */
00483 
00484   static dbus_bool_t beenhere = FALSE;
00485 
00486   WORD wVersionRequested;
00487   WSADATA wsaData;
00488   int err;
00489 
00490   if (beenhere)
00491     return;
00492 
00493   wVersionRequested = MAKEWORD (2, 0);
00494 
00495   err = WSAStartup (wVersionRequested, &wsaData);
00496   if (err != 0)
00497     {
00498       _dbus_assert_not_reached ("Could not initialize WinSock");
00499       _dbus_abort ();
00500     }
00501 
00502   /* Confirm that the WinSock DLL supports 2.0.  Note that if the DLL
00503    * supports versions greater than 2.0 in addition to 2.0, it will
00504    * still return 2.0 in wVersion since that is the version we
00505    * requested.
00506    */
00507   if (LOBYTE (wsaData.wVersion) != 2 ||
00508       HIBYTE (wsaData.wVersion) != 0)
00509     {
00510       _dbus_assert_not_reached ("No usable WinSock found");
00511       _dbus_abort ();
00512     }
00513 
00514   beenhere = TRUE;
00515 }
00516 
00517 
00518 
00519 
00520 
00521 
00522 
00523 
00524 
00525 /************************************************************************
00526  
00527  UTF / string code
00528  
00529  ************************************************************************/
00530 
00534 int _dbus_printf_string_upper_bound (const char *format,
00535                                      va_list args)
00536 {
00537   /* MSVCRT's vsnprintf semantics are a bit different */
00538   char buf[1024];
00539   int bufsize;
00540   int len;
00541 
00542   bufsize = sizeof (buf);
00543   len = _vsnprintf (buf, bufsize - 1, format, args);
00544 
00545   while (len == -1) /* try again */
00546     {
00547       char *p;
00548 
00549       bufsize *= 2;
00550 
00551       p = malloc (bufsize);
00552 
00553       if (p == NULL)
00554         return -1;
00555 
00556       len = _vsnprintf (p, bufsize - 1, format, args);
00557       free (p);
00558     }
00559 
00560   return len;
00561 }
00562 
00563 
00571 wchar_t *
00572 _dbus_win_utf8_to_utf16 (const char *str,
00573                          DBusError  *error)
00574 {
00575   DBusString s;
00576   int n;
00577   wchar_t *retval;
00578 
00579   _dbus_string_init_const (&s, str);
00580 
00581   if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
00582     {
00583       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
00584       return NULL;
00585     }
00586 
00587   n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
00588 
00589   if (n == 0)
00590     {
00591       _dbus_win_set_error_from_win_error (error, GetLastError ());
00592       return NULL;
00593     }
00594 
00595   retval = dbus_new (wchar_t, n);
00596 
00597   if (!retval)
00598     {
00599       _DBUS_SET_OOM (error);
00600       return NULL;
00601     }
00602 
00603   if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
00604     {
00605       dbus_free (retval);
00606       dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
00607       return NULL;
00608     }
00609 
00610   return retval;
00611 }
00612 
00620 char *
00621 _dbus_win_utf16_to_utf8 (const wchar_t *str,
00622                          DBusError     *error)
00623 {
00624   int n;
00625   char *retval;
00626 
00627   n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
00628 
00629   if (n == 0)
00630     {
00631       _dbus_win_set_error_from_win_error (error, GetLastError ());
00632       return NULL;
00633     }
00634 
00635   retval = dbus_malloc (n);
00636 
00637   if (!retval)
00638     {
00639       _DBUS_SET_OOM (error);
00640       return NULL;
00641     }
00642 
00643   if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
00644     {
00645       dbus_free (retval);
00646       dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
00647       return NULL;
00648     }
00649 
00650   return retval;
00651 }
00652 
00653 
00654 
00655 
00656 
00657 
00658 /************************************************************************
00659  
00660  
00661  ************************************************************************/
00662 
00663 dbus_bool_t
00664 _dbus_win_account_to_sid (const wchar_t *waccount,
00665                           void           **ppsid,
00666                           DBusError       *error)
00667 {
00668   dbus_bool_t retval = FALSE;
00669   DWORD sid_length, wdomain_length;
00670   SID_NAME_USE use;
00671   wchar_t *wdomain;
00672 
00673   *ppsid = NULL;
00674 
00675   sid_length = 0;
00676   wdomain_length = 0;
00677   if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
00678                            NULL, &wdomain_length, &use) &&
00679       GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00680     {
00681       _dbus_win_set_error_from_win_error (error, GetLastError ());
00682       return FALSE;
00683     }
00684 
00685   *ppsid = dbus_malloc (sid_length);
00686   if (!*ppsid)
00687     {
00688       _DBUS_SET_OOM (error);
00689       return FALSE;
00690     }
00691 
00692   wdomain = dbus_new (wchar_t, wdomain_length);
00693   if (!wdomain)
00694     {
00695       _DBUS_SET_OOM (error);
00696       goto out1;
00697     }
00698 
00699   if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
00700                            wdomain, &wdomain_length, &use))
00701     {
00702       _dbus_win_set_error_from_win_error (error, GetLastError ());
00703       goto out2;
00704     }
00705 
00706   if (!IsValidSid ((PSID) *ppsid))
00707     {
00708       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
00709       goto out2;
00710     }
00711 
00712   retval = TRUE;
00713 
00714 out2:
00715   dbus_free (wdomain);
00716 out1:
00717   if (!retval)
00718     {
00719       dbus_free (*ppsid);
00720       *ppsid = NULL;
00721     }
00722 
00723   return retval;
00724 }
00725 
00735 unsigned long
00736 _dbus_pid_for_log (void)
00737 {
00738   return _dbus_getpid ();
00739 }
00740 
00741 
00742 #ifndef DBUS_WINCE
00743 
00747 static dbus_bool_t
00748 _dbus_getsid(char **sid)
00749 {
00750   HANDLE process_token = INVALID_HANDLE_VALUE;
00751   TOKEN_USER *token_user = NULL;
00752   DWORD n;
00753   PSID psid;
00754   int retval = FALSE;
00755   
00756   if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token)) 
00757     {
00758       _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
00759       goto failed;
00760     }
00761   if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
00762             && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00763            || (token_user = alloca (n)) == NULL
00764            || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
00765     {
00766       _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
00767       goto failed;
00768     }
00769   psid = token_user->User.Sid;
00770   if (!IsValidSid (psid))
00771     {
00772       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00773       goto failed;
00774     }
00775   if (!ConvertSidToStringSidA (psid, sid))
00776     {
00777       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00778       goto failed;
00779     }
00780 //okay:
00781   retval = TRUE;
00782 
00783 failed:
00784   if (process_token != INVALID_HANDLE_VALUE)
00785     CloseHandle (process_token);
00786 
00787   _dbus_verbose("_dbus_getsid() returns %d\n",retval);
00788   return retval;
00789 }
00790 #endif
00791 
00792 /************************************************************************
00793  
00794  pipes
00795  
00796  ************************************************************************/
00797 
00813 dbus_bool_t
00814 _dbus_full_duplex_pipe (int        *fd1,
00815                         int        *fd2,
00816                         dbus_bool_t blocking,
00817                         DBusError  *error)
00818 {
00819   SOCKET temp, socket1 = -1, socket2 = -1;
00820   struct sockaddr_in saddr;
00821   int len;
00822   u_long arg;
00823   fd_set read_set, write_set;
00824   struct timeval tv;
00825   int res;
00826 
00827   _dbus_win_startup_winsock ();
00828 
00829   temp = socket (AF_INET, SOCK_STREAM, 0);
00830   if (temp == INVALID_SOCKET)
00831     {
00832       DBUS_SOCKET_SET_ERRNO ();
00833       goto out0;
00834     }
00835 
00836   _DBUS_ZERO (saddr);
00837   saddr.sin_family = AF_INET;
00838   saddr.sin_port = 0;
00839   saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
00840 
00841   if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
00842     {
00843       DBUS_SOCKET_SET_ERRNO ();
00844       goto out0;
00845     }
00846 
00847   if (listen (temp, 1) == SOCKET_ERROR)
00848     {
00849       DBUS_SOCKET_SET_ERRNO ();
00850       goto out0;
00851     }
00852 
00853   len = sizeof (saddr);
00854   if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
00855     {
00856       DBUS_SOCKET_SET_ERRNO ();
00857       goto out0;
00858     }
00859 
00860   socket1 = socket (AF_INET, SOCK_STREAM, 0);
00861   if (socket1 == INVALID_SOCKET)
00862     {
00863       DBUS_SOCKET_SET_ERRNO ();
00864       goto out0;
00865     }
00866 
00867   if (connect (socket1, (struct sockaddr  *)&saddr, len) == SOCKET_ERROR)
00868     {
00869       DBUS_SOCKET_SET_ERRNO ();
00870       goto out1;
00871     }
00872 
00873   socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
00874   if (socket2 == INVALID_SOCKET)
00875     {
00876       DBUS_SOCKET_SET_ERRNO ();
00877       goto out1;
00878     }
00879 
00880   if (!blocking)
00881     {
00882       arg = 1;
00883       if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
00884         {
00885           DBUS_SOCKET_SET_ERRNO ();
00886           goto out2;
00887         }
00888 
00889       arg = 1;
00890       if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
00891         {
00892           DBUS_SOCKET_SET_ERRNO ();
00893           goto out2;
00894         }
00895     }
00896 
00897   *fd1 = socket1;
00898   *fd2 = socket2;
00899 
00900   _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
00901                  *fd1, socket1, *fd2, socket2);
00902 
00903   closesocket (temp);
00904 
00905   return TRUE;
00906 
00907 out2:
00908   closesocket (socket2);
00909 out1:
00910   closesocket (socket1);
00911 out0:
00912   closesocket (temp);
00913 
00914   dbus_set_error (error, _dbus_error_from_errno (errno),
00915                   "Could not setup socket pair: %s",
00916                   _dbus_strerror_from_errno ());
00917 
00918   return FALSE;
00919 }
00920 
00929 int
00930 _dbus_poll (DBusPollFD *fds,
00931             int         n_fds,
00932             int         timeout_milliseconds)
00933 {
00934 #define USE_CHRIS_IMPL 0
00935 
00936 #if USE_CHRIS_IMPL
00937 
00938 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
00939   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
00940   char *msgp;
00941 
00942   int ret = 0;
00943   int i;
00944   struct timeval tv;
00945   int ready;
00946 
00947 #define DBUS_STACK_WSAEVENTS 256
00948   WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
00949   WSAEVENT *pEvents = NULL;
00950   if (n_fds > DBUS_STACK_WSAEVENTS)
00951     pEvents = calloc(sizeof(WSAEVENT), n_fds);
00952   else
00953     pEvents = eventsOnStack;
00954 
00955 
00956 #ifdef DBUS_ENABLE_VERBOSE_MODE
00957   msgp = msg;
00958   msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
00959   for (i = 0; i < n_fds; i++)
00960     {
00961       static dbus_bool_t warned = FALSE;
00962       DBusPollFD *fdp = &fds[i];
00963 
00964 
00965       if (fdp->events & _DBUS_POLLIN)
00966         msgp += sprintf (msgp, "R:%d ", fdp->fd);
00967 
00968       if (fdp->events & _DBUS_POLLOUT)
00969         msgp += sprintf (msgp, "W:%d ", fdp->fd);
00970 
00971       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
00972 
00973       // FIXME: more robust code for long  msg
00974       //        create on heap when msg[] becomes too small
00975       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
00976         {
00977           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
00978         }
00979     }
00980 
00981   msgp += sprintf (msgp, "\n");
00982   _dbus_verbose ("%s",msg);
00983 #endif
00984   for (i = 0; i < n_fds; i++)
00985     {
00986       DBusPollFD *fdp = &fds[i];
00987       WSAEVENT ev;
00988       long lNetworkEvents = FD_OOB;
00989 
00990       ev = WSACreateEvent();
00991 
00992       if (fdp->events & _DBUS_POLLIN)
00993         lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
00994 
00995       if (fdp->events & _DBUS_POLLOUT)
00996         lNetworkEvents |= FD_WRITE | FD_CONNECT;
00997 
00998       WSAEventSelect(fdp->fd, ev, lNetworkEvents);
00999 
01000       pEvents[i] = ev;
01001     }
01002 
01003 
01004   ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
01005 
01006   if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
01007     {
01008       DBUS_SOCKET_SET_ERRNO ();
01009       if (errno != WSAEWOULDBLOCK)
01010         _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
01011       ret = -1;
01012     }
01013   else if (ready == WSA_WAIT_TIMEOUT)
01014     {
01015       _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
01016       ret = 0;
01017     }
01018   else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
01019     {
01020       msgp = msg;
01021       msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
01022 
01023       for (i = 0; i < n_fds; i++)
01024         {
01025           DBusPollFD *fdp = &fds[i];
01026           WSANETWORKEVENTS ne;
01027 
01028           fdp->revents = 0;
01029 
01030           WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
01031 
01032           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01033             fdp->revents |= _DBUS_POLLIN;
01034 
01035           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01036             fdp->revents |= _DBUS_POLLOUT;
01037 
01038           if (ne.lNetworkEvents & (FD_OOB))
01039             fdp->revents |= _DBUS_POLLERR;
01040 
01041           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01042               msgp += sprintf (msgp, "R:%d ", fdp->fd);
01043 
01044           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01045               msgp += sprintf (msgp, "W:%d ", fdp->fd);
01046 
01047           if (ne.lNetworkEvents & (FD_OOB))
01048               msgp += sprintf (msgp, "E:%d ", fdp->fd);
01049 
01050           msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
01051 
01052           if(ne.lNetworkEvents)
01053             ret++;
01054 
01055           WSAEventSelect(fdp->fd, pEvents[i], 0);
01056         }
01057 
01058       msgp += sprintf (msgp, "\n");
01059       _dbus_verbose ("%s",msg);
01060     }
01061   else
01062     {
01063       _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
01064       ret = -1;
01065     }
01066 
01067   for(i = 0; i < n_fds; i++)
01068     {
01069       WSACloseEvent(pEvents[i]);
01070     }
01071 
01072   if (n_fds > DBUS_STACK_WSAEVENTS)
01073     free(pEvents);
01074 
01075   return ret;
01076 
01077 #else   /* USE_CHRIS_IMPL */
01078 
01079 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
01080   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
01081   char *msgp;
01082 
01083   fd_set read_set, write_set, err_set;
01084   int max_fd = 0;
01085   int i;
01086   struct timeval tv;
01087   int ready;
01088 
01089   FD_ZERO (&read_set);
01090   FD_ZERO (&write_set);
01091   FD_ZERO (&err_set);
01092 
01093 
01094 #ifdef DBUS_ENABLE_VERBOSE_MODE
01095   msgp = msg;
01096   msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
01097   for (i = 0; i < n_fds; i++)
01098     {
01099       static dbus_bool_t warned = FALSE;
01100       DBusPollFD *fdp = &fds[i];
01101 
01102 
01103       if (fdp->events & _DBUS_POLLIN)
01104         msgp += sprintf (msgp, "R:%d ", fdp->fd);
01105 
01106       if (fdp->events & _DBUS_POLLOUT)
01107         msgp += sprintf (msgp, "W:%d ", fdp->fd);
01108 
01109       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
01110 
01111       // FIXME: more robust code for long  msg
01112       //        create on heap when msg[] becomes too small
01113       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
01114         {
01115           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
01116         }
01117     }
01118 
01119   msgp += sprintf (msgp, "\n");
01120   _dbus_verbose ("%s",msg);
01121 #endif
01122   for (i = 0; i < n_fds; i++)
01123     {
01124       DBusPollFD *fdp = &fds[i]; 
01125 
01126       if (fdp->events & _DBUS_POLLIN)
01127         FD_SET (fdp->fd, &read_set);
01128 
01129       if (fdp->events & _DBUS_POLLOUT)
01130         FD_SET (fdp->fd, &write_set);
01131 
01132       FD_SET (fdp->fd, &err_set);
01133 
01134       max_fd = MAX (max_fd, fdp->fd);
01135     }
01136 
01137   // Avoid random lockups with send(), for lack of a better solution so far
01138   tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
01139   tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
01140 
01141   ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
01142 
01143   if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
01144     {
01145       DBUS_SOCKET_SET_ERRNO ();
01146       if (errno != WSAEWOULDBLOCK)
01147         _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
01148     }
01149   else if (ready == 0)
01150     _dbus_verbose ("select: = 0\n");
01151   else
01152     if (ready > 0)
01153       {
01154 #ifdef DBUS_ENABLE_VERBOSE_MODE
01155         msgp = msg;
01156         msgp += sprintf (msgp, "select: = %d:\n\t", ready);
01157 
01158         for (i = 0; i < n_fds; i++)
01159           {
01160             DBusPollFD *fdp = &fds[i];
01161 
01162             if (FD_ISSET (fdp->fd, &read_set))
01163               msgp += sprintf (msgp, "R:%d ", fdp->fd);
01164 
01165             if (FD_ISSET (fdp->fd, &write_set))
01166               msgp += sprintf (msgp, "W:%d ", fdp->fd);
01167 
01168             if (FD_ISSET (fdp->fd, &err_set))
01169               msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
01170           }
01171         msgp += sprintf (msgp, "\n");
01172         _dbus_verbose ("%s",msg);
01173 #endif
01174 
01175         for (i = 0; i < n_fds; i++)
01176           {
01177             DBusPollFD *fdp = &fds[i];
01178 
01179             fdp->revents = 0;
01180 
01181             if (FD_ISSET (fdp->fd, &read_set))
01182               fdp->revents |= _DBUS_POLLIN;
01183 
01184             if (FD_ISSET (fdp->fd, &write_set))
01185               fdp->revents |= _DBUS_POLLOUT;
01186 
01187             if (FD_ISSET (fdp->fd, &err_set))
01188               fdp->revents |= _DBUS_POLLERR;
01189           }
01190       }
01191   return ready;
01192 #endif  /* USE_CHRIS_IMPL */
01193 }
01194 
01195 
01196 
01197 
01198 /******************************************************************************
01199  
01200 Original CVS version of dbus-sysdeps.c
01201  
01202 ******************************************************************************/
01203 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
01204 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
01205  * 
01206  * Copyright (C) 2002, 2003  Red Hat, Inc.
01207  * Copyright (C) 2003 CodeFactory AB
01208  * Copyright (C) 2005 Novell, Inc.
01209  *
01210  * Licensed under the Academic Free License version 2.1
01211  * 
01212  * This program is free software; you can redistribute it and/or modify
01213  * it under the terms of the GNU General Public License as published by
01214  * the Free Software Foundation; either version 2 of the License, or
01215  * (at your option) any later version.
01216  *
01217  * This program is distributed in the hope that it will be useful,
01218  * but WITHOUT ANY WARRANTY; without even the implied warranty of
01219  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
01220  * GNU General Public License for more details.
01221  * 
01222  * You should have received a copy of the GNU General Public License
01223  * along with this program; if not, write to the Free Software
01224  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
01225  *
01226  */
01227 
01228 
01234 void
01235 _dbus_exit (int code)
01236 {
01237   _exit (code);
01238 }
01239 
01251 int
01252 _dbus_connect_tcp_socket (const char     *host,
01253                           const char     *port,
01254                           const char     *family,
01255                           DBusError      *error)
01256 {
01257   return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
01258 }
01259 
01260 int
01261 _dbus_connect_tcp_socket_with_nonce (const char     *host,
01262                                      const char     *port,
01263                                      const char     *family,
01264                                      const char     *noncefile,
01265                                      DBusError      *error)
01266 {
01267   int fd = -1, res;
01268   struct addrinfo hints;
01269   struct addrinfo *ai, *tmp;
01270 
01271   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01272 
01273   _dbus_win_startup_winsock ();
01274 
01275   _DBUS_ZERO (hints);
01276 
01277   if (!family)
01278     hints.ai_family = AF_UNSPEC;
01279   else if (!strcmp(family, "ipv4"))
01280     hints.ai_family = AF_INET;
01281   else if (!strcmp(family, "ipv6"))
01282     hints.ai_family = AF_INET6;
01283   else
01284     {
01285       dbus_set_error (error,
01286                       DBUS_ERROR_INVALID_ARGS,
01287                       "Unknown address family %s", family);
01288       return -1;
01289     }
01290   hints.ai_protocol = IPPROTO_TCP;
01291   hints.ai_socktype = SOCK_STREAM;
01292 #ifdef AI_ADDRCONFIG
01293   hints.ai_flags = AI_ADDRCONFIG;
01294 #else
01295   hints.ai_flags = 0;
01296 #endif
01297 
01298   if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
01299     {
01300       dbus_set_error (error,
01301                       _dbus_error_from_errno (res),
01302                       "Failed to lookup host/port: \"%s:%s\": %s (%d)",
01303                       host, port, _dbus_strerror(res), res);
01304       return -1;
01305     }
01306 
01307   tmp = ai;
01308   while (tmp)
01309     {
01310       if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
01311         {
01312           DBUS_SOCKET_SET_ERRNO ();
01313           dbus_set_error (error,
01314                           _dbus_error_from_errno (errno),
01315                           "Failed to open socket: %s",
01316                           _dbus_strerror_from_errno ());
01317           freeaddrinfo(ai);
01318           return -1;
01319         }
01320       _DBUS_ASSERT_ERROR_IS_CLEAR(error);
01321 
01322       if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
01323         {
01324           DBUS_SOCKET_SET_ERRNO ();
01325           closesocket(fd);
01326           fd = -1;
01327           tmp = tmp->ai_next;
01328           continue;
01329         }
01330 
01331       break;
01332     }
01333   freeaddrinfo(ai);
01334 
01335   if (fd == -1)
01336     {
01337       dbus_set_error (error,
01338                       _dbus_error_from_errno (errno),
01339                       "Failed to connect to socket \"%s:%s\" %s",
01340                       host, port, _dbus_strerror_from_errno ());
01341       return -1;
01342     }
01343 
01344   if (noncefile != NULL)
01345     {
01346       DBusString noncefileStr;
01347       dbus_bool_t ret;
01348       if (!_dbus_string_init (&noncefileStr) ||
01349           !_dbus_string_append(&noncefileStr, noncefile))
01350         {
01351           closesocket (fd);
01352           dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01353           return -1;
01354         }
01355 
01356       ret = _dbus_send_nonce (fd, &noncefileStr, error);
01357 
01358       _dbus_string_free (&noncefileStr);
01359 
01360       if (!ret)
01361         {
01362           closesocket (fd);
01363           return -1;
01364         }
01365     }
01366 
01367   _dbus_fd_set_close_on_exec (fd);
01368 
01369   if (!_dbus_set_fd_nonblocking (fd, error))
01370     {
01371       closesocket (fd);
01372       return -1;
01373     }
01374 
01375   return fd;
01376 }
01377 
01393 int
01394 _dbus_listen_tcp_socket (const char     *host,
01395                          const char     *port,
01396                          const char     *family,
01397                          DBusString     *retport,
01398                          int           **fds_p,
01399                          DBusError      *error)
01400 {
01401   int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
01402   struct addrinfo hints;
01403   struct addrinfo *ai, *tmp;
01404 
01405   // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
01406   //That's required for family == IPv6(which is the default on Vista if family is not given)
01407   //So we use our own union instead of sockaddr_gen:
01408 
01409   typedef union {
01410         struct sockaddr Address;
01411         struct sockaddr_in AddressIn;
01412         struct sockaddr_in6 AddressIn6;
01413   } mysockaddr_gen;
01414 
01415   *fds_p = NULL;
01416   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01417 
01418   _dbus_win_startup_winsock ();
01419 
01420   _DBUS_ZERO (hints);
01421 
01422   if (!family)
01423     hints.ai_family = AF_UNSPEC;
01424   else if (!strcmp(family, "ipv4"))
01425     hints.ai_family = AF_INET;
01426   else if (!strcmp(family, "ipv6"))
01427     hints.ai_family = AF_INET6;
01428   else
01429     {
01430       dbus_set_error (error,
01431                       DBUS_ERROR_INVALID_ARGS,
01432                       "Unknown address family %s", family);
01433       return -1;
01434     }
01435 
01436   hints.ai_protocol = IPPROTO_TCP;
01437   hints.ai_socktype = SOCK_STREAM;
01438 #ifdef AI_ADDRCONFIG
01439   hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
01440 #else
01441   hints.ai_flags = AI_PASSIVE;
01442 #endif
01443 
01444  redo_lookup_with_port:
01445   if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
01446     {
01447       dbus_set_error (error,
01448                       _dbus_error_from_errno (res),
01449                       "Failed to lookup host/port: \"%s:%s\": %s (%d)",
01450                       host ? host : "*", port, _dbus_strerror(res), res);
01451       return -1;
01452     }
01453 
01454   tmp = ai;
01455   while (tmp)
01456     {
01457       int fd = -1, *newlisten_fd;
01458       if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
01459         {
01460           DBUS_SOCKET_SET_ERRNO ();
01461           dbus_set_error (error,
01462                           _dbus_error_from_errno (errno),
01463                          "Failed to open socket: %s",
01464                          _dbus_strerror_from_errno ());
01465           goto failed;
01466         }
01467       _DBUS_ASSERT_ERROR_IS_CLEAR(error);
01468 
01469       if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
01470         {
01471           DBUS_SOCKET_SET_ERRNO ();
01472           dbus_set_error (error, _dbus_error_from_errno (errno),
01473                           "Failed to bind socket \"%s:%s\": %s",
01474                           host ? host : "*", port, _dbus_strerror_from_errno ());
01475           closesocket (fd);
01476           goto failed;
01477     }
01478 
01479       if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
01480         {
01481           DBUS_SOCKET_SET_ERRNO ();
01482           dbus_set_error (error, _dbus_error_from_errno (errno),
01483                           "Failed to listen on socket \"%s:%s\": %s",
01484                           host ? host : "*", port, _dbus_strerror_from_errno ());
01485           closesocket (fd);
01486           goto failed;
01487         }
01488 
01489       newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
01490       if (!newlisten_fd)
01491         {
01492           closesocket (fd);
01493           dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
01494                           "Failed to allocate file handle array");
01495           goto failed;
01496         }
01497       listen_fd = newlisten_fd;
01498       listen_fd[nlisten_fd] = fd;
01499       nlisten_fd++;
01500 
01501       if (!_dbus_string_get_length(retport))
01502         {
01503           /* If the user didn't specify a port, or used 0, then
01504              the kernel chooses a port. After the first address
01505              is bound to, we need to force all remaining addresses
01506              to use the same port */
01507           if (!port || !strcmp(port, "0"))
01508             {
01509               mysockaddr_gen addr;
01510               socklen_t addrlen = sizeof(addr);
01511               char portbuf[10];
01512 
01513               if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
01514                 {
01515                   DBUS_SOCKET_SET_ERRNO ();
01516                   dbus_set_error (error, _dbus_error_from_errno (errno),
01517                                   "Failed to resolve port \"%s:%s\": %s",
01518                                   host ? host : "*", port, _dbus_strerror_from_errno());
01519                   goto failed;
01520                 }
01521               snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
01522               if (!_dbus_string_append(retport, portbuf))
01523                 {
01524                   dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01525                   goto failed;
01526                 }
01527 
01528               /* Release current address list & redo lookup */
01529               port = _dbus_string_get_const_data(retport);
01530               freeaddrinfo(ai);
01531               goto redo_lookup_with_port;
01532             }
01533           else
01534             {
01535               if (!_dbus_string_append(retport, port))
01536                 {
01537                     dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01538                     goto failed;
01539                 }
01540             }
01541         }
01542   
01543       tmp = tmp->ai_next;
01544     }
01545   freeaddrinfo(ai);
01546   ai = NULL;
01547 
01548   if (!nlisten_fd)
01549     {
01550       _dbus_win_set_errno (WSAEADDRINUSE);
01551       dbus_set_error (error, _dbus_error_from_errno (errno),
01552                       "Failed to bind socket \"%s:%s\": %s",
01553                       host ? host : "*", port, _dbus_strerror_from_errno ());
01554       return -1;
01555     }
01556 
01557   sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
01558 
01559   for (i = 0 ; i < nlisten_fd ; i++)
01560     {
01561       _dbus_fd_set_close_on_exec (listen_fd[i]);
01562       if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
01563         {
01564           goto failed;
01565         }
01566     }
01567 
01568   *fds_p = listen_fd;
01569 
01570   return nlisten_fd;
01571 
01572  failed:
01573   if (ai)
01574     freeaddrinfo(ai);
01575   for (i = 0 ; i < nlisten_fd ; i++)
01576     closesocket (listen_fd[i]);
01577   dbus_free(listen_fd);
01578   return -1;
01579 }
01580 
01581 
01589 int
01590 _dbus_accept  (int listen_fd)
01591 {
01592   int client_fd;
01593 
01594  retry:
01595   client_fd = accept (listen_fd, NULL, NULL);
01596 
01597   if (DBUS_SOCKET_IS_INVALID (client_fd))
01598     {
01599       DBUS_SOCKET_SET_ERRNO ();
01600       if (errno == EINTR)
01601         goto retry;
01602     }
01603 
01604   _dbus_verbose ("client fd %d accepted\n", client_fd);
01605   
01606   return client_fd;
01607 }
01608 
01609 
01610 
01611 
01612 dbus_bool_t
01613 _dbus_send_credentials_socket (int            handle,
01614                         DBusError      *error)
01615 {
01616 /* FIXME: for the session bus credentials shouldn't matter (?), but
01617  * for the system bus they are presumably essential. A rough outline
01618  * of a way to implement the credential transfer would be this:
01619  *
01620  * client waits to *read* a byte.
01621  *
01622  * server creates a named pipe with a random name, sends a byte
01623  * contining its length, and its name.
01624  *
01625  * client reads the name, connects to it (using Win32 API).
01626  *
01627  * server waits for connection to the named pipe, then calls
01628  * ImpersonateNamedPipeClient(), notes its now-current credentials,
01629  * calls RevertToSelf(), closes its handles to the named pipe, and
01630  * is done. (Maybe there is some other way to get the SID of a named
01631  * pipe client without having to use impersonation?)
01632  *
01633  * client closes its handles and is done.
01634  * 
01635  * Ralf: Why not sending credentials over the given this connection ?
01636  * Using named pipes makes it impossible to be connected from a unix client.  
01637  *
01638  */
01639   int bytes_written;
01640   DBusString buf; 
01641 
01642   _dbus_string_init_const_len (&buf, "\0", 1);
01643 again:
01644   bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
01645 
01646   if (bytes_written < 0 && errno == EINTR)
01647     goto again;
01648 
01649   if (bytes_written < 0)
01650     {
01651       dbus_set_error (error, _dbus_error_from_errno (errno),
01652                       "Failed to write credentials byte: %s",
01653                      _dbus_strerror_from_errno ());
01654       return FALSE;
01655     }
01656   else if (bytes_written == 0)
01657     {
01658       dbus_set_error (error, DBUS_ERROR_IO_ERROR,
01659                       "wrote zero bytes writing credentials byte");
01660       return FALSE;
01661     }
01662   else
01663     {
01664       _dbus_assert (bytes_written == 1);
01665       _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
01666       return TRUE;
01667     }
01668   return TRUE;
01669 }
01670 
01689 dbus_bool_t
01690 _dbus_read_credentials_socket  (int              handle,
01691                                 DBusCredentials *credentials,
01692                                 DBusError       *error)
01693 {
01694   int bytes_read = 0;
01695   DBusString buf;
01696   
01697   // could fail due too OOM
01698   if (_dbus_string_init(&buf))
01699     {
01700       bytes_read = _dbus_read_socket(handle, &buf, 1 );
01701 
01702       if (bytes_read > 0) 
01703         _dbus_verbose("got one zero byte from server");
01704 
01705       _dbus_string_free(&buf);
01706     }
01707 
01708   _dbus_credentials_add_from_current_process (credentials);
01709   _dbus_verbose("FIXME: get faked credentials from current process");
01710 
01711   return TRUE;
01712 }
01713 
01722 dbus_bool_t
01723 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
01724 {
01725   /* TODO */
01726   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01727   return TRUE;
01728 }
01729 
01730 
01741 dbus_bool_t
01742 _dbus_concat_dir_and_file (DBusString       *dir,
01743                            const DBusString *next_component)
01744 {
01745   dbus_bool_t dir_ends_in_slash;
01746   dbus_bool_t file_starts_with_slash;
01747 
01748   if (_dbus_string_get_length (dir) == 0 ||
01749       _dbus_string_get_length (next_component) == 0)
01750     return TRUE;
01751 
01752   dir_ends_in_slash =
01753     ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
01754      '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
01755 
01756   file_starts_with_slash =
01757     ('/' == _dbus_string_get_byte (next_component, 0) ||
01758      '\\' == _dbus_string_get_byte (next_component, 0));
01759 
01760   if (dir_ends_in_slash && file_starts_with_slash)
01761     {
01762       _dbus_string_shorten (dir, 1);
01763     }
01764   else if (!(dir_ends_in_slash || file_starts_with_slash))
01765     {
01766       if (!_dbus_string_append_byte (dir, '\\'))
01767         return FALSE;
01768     }
01769 
01770   return _dbus_string_copy (next_component, 0, dir,
01771                             _dbus_string_get_length (dir));
01772 }
01773 
01774 /*---------------- DBusCredentials ----------------------------------*/
01775 
01783 dbus_bool_t
01784 _dbus_credentials_add_from_user (DBusCredentials  *credentials,
01785                                      const DBusString *username)
01786 {
01787   return _dbus_credentials_add_windows_sid (credentials,
01788                     _dbus_string_get_const_data(username));
01789 }
01790 
01799 dbus_bool_t
01800 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
01801 {
01802   dbus_bool_t retval = FALSE;
01803   char *sid = NULL;
01804 
01805   if (!_dbus_getsid(&sid))
01806     goto failed;
01807 
01808   if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
01809     goto failed;
01810 
01811   if (!_dbus_credentials_add_windows_sid (credentials,sid))
01812     goto failed;
01813 
01814   retval = TRUE;
01815   goto end;
01816 failed:
01817   retval = FALSE;
01818 end:
01819   if (sid)
01820     LocalFree(sid);
01821 
01822   return retval;
01823 }
01824 
01837 dbus_bool_t
01838 _dbus_append_user_from_current_process (DBusString *str)
01839 {
01840   dbus_bool_t retval = FALSE;
01841   char *sid = NULL;
01842 
01843   if (!_dbus_getsid(&sid))
01844     return FALSE;
01845 
01846   retval = _dbus_string_append (str,sid);
01847 
01848   LocalFree(sid);
01849   return retval;
01850 }
01851 
01856 dbus_pid_t
01857 _dbus_getpid (void)
01858 {
01859   return GetCurrentProcessId ();
01860 }
01861 
01863 #define NANOSECONDS_PER_SECOND       1000000000
01864 
01865 #define MICROSECONDS_PER_SECOND      1000000
01866 
01867 #define MILLISECONDS_PER_SECOND      1000
01868 
01869 #define NANOSECONDS_PER_MILLISECOND  1000000
01870 
01871 #define MICROSECONDS_PER_MILLISECOND 1000
01872 
01877 void
01878 _dbus_sleep_milliseconds (int milliseconds)
01879 {
01880   Sleep (milliseconds);
01881 }
01882 
01883 
01890 void
01891 _dbus_get_current_time (long *tv_sec,
01892                         long *tv_usec)
01893 {
01894   FILETIME ft;
01895   dbus_uint64_t time64;
01896 
01897   GetSystemTimeAsFileTime (&ft);
01898 
01899   memcpy (&time64, &ft, sizeof (time64));
01900 
01901   /* Convert from 100s of nanoseconds since 1601-01-01
01902   * to Unix epoch. Yes, this is Y2038 unsafe.
01903   */
01904   time64 -= DBUS_INT64_CONSTANT (116444736000000000);
01905   time64 /= 10;
01906 
01907   if (tv_sec)
01908     *tv_sec = time64 / 1000000;
01909 
01910   if (tv_usec)
01911     *tv_usec = time64 % 1000000;
01912 }
01913 
01914 
01918 void
01919 _dbus_disable_sigpipe (void)
01920 {
01921 }
01922 
01931 dbus_bool_t
01932 _dbus_create_directory (const DBusString *filename,
01933                         DBusError        *error)
01934 {
01935   const char *filename_c;
01936 
01937   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01938 
01939   filename_c = _dbus_string_get_const_data (filename);
01940 
01941   if (!CreateDirectoryA (filename_c, NULL))
01942     {
01943       if (GetLastError () == ERROR_ALREADY_EXISTS)
01944         return TRUE;
01945 
01946       dbus_set_error (error, DBUS_ERROR_FAILED,
01947                       "Failed to create directory %s: %s\n",
01948                       filename_c, _dbus_strerror_from_errno ());
01949       return FALSE;
01950     }
01951   else
01952     return TRUE;
01953 }
01954 
01955 
01964 dbus_bool_t
01965 _dbus_generate_random_bytes (DBusString *str,
01966                              int         n_bytes)
01967 {
01968   int old_len;
01969   char *p;
01970   HCRYPTPROV hprov;
01971 
01972   old_len = _dbus_string_get_length (str);
01973 
01974   if (!_dbus_string_lengthen (str, n_bytes))
01975     return FALSE;
01976 
01977   p = _dbus_string_get_data_len (str, old_len, n_bytes);
01978 
01979   if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
01980     return FALSE;
01981 
01982   if (!CryptGenRandom (hprov, n_bytes, p))
01983     {
01984       CryptReleaseContext (hprov, 0);
01985       return FALSE;
01986     }
01987 
01988   CryptReleaseContext (hprov, 0);
01989 
01990   return TRUE;
01991 }
01992 
01999 const char*
02000 _dbus_get_tmpdir(void)
02001 {
02002   static const char* tmpdir = NULL;
02003   static char buf[1000];
02004 
02005   if (tmpdir == NULL)
02006     {
02007       char *last_slash;
02008 
02009       if (!GetTempPathA (sizeof (buf), buf))
02010         {
02011           _dbus_warn ("GetTempPath failed\n");
02012           _dbus_abort ();
02013         }
02014 
02015       /* Drop terminating backslash or slash */
02016       last_slash = _mbsrchr (buf, '\\');
02017       if (last_slash > buf && last_slash[1] == '\0')
02018         last_slash[0] = '\0';
02019       last_slash = _mbsrchr (buf, '/');
02020       if (last_slash > buf && last_slash[1] == '\0')
02021         last_slash[0] = '\0';
02022 
02023       tmpdir = buf;
02024     }
02025 
02026   _dbus_assert(tmpdir != NULL);
02027 
02028   return tmpdir;
02029 }
02030 
02031 
02040 dbus_bool_t
02041 _dbus_delete_file (const DBusString *filename,
02042                    DBusError        *error)
02043 {
02044   const char *filename_c;
02045 
02046   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02047 
02048   filename_c = _dbus_string_get_const_data (filename);
02049 
02050   if (DeleteFileA (filename_c) == 0)
02051     {
02052       dbus_set_error (error, DBUS_ERROR_FAILED,
02053                       "Failed to delete file %s: %s\n",
02054                       filename_c, _dbus_strerror_from_errno ());
02055       return FALSE;
02056     }
02057   else
02058     return TRUE;
02059 }
02060 
02061 /*
02062  * replaces the term DBUS_PREFIX in configure_time_path by the
02063  * current dbus installation directory. On unix this function is a noop
02064  *
02065  * @param configure_time_path
02066  * @return real path
02067  */
02068 const char *
02069 _dbus_replace_install_prefix (const char *configure_time_path)
02070 {
02071 #ifndef DBUS_PREFIX
02072   return configure_time_path;
02073 #else
02074   static char retval[1000];
02075   static char runtime_prefix[1000];
02076   int len = 1000;
02077   int i;
02078 
02079   if (!configure_time_path)
02080     return NULL;
02081 
02082   if ((!_dbus_get_install_root(runtime_prefix, len) ||
02083        strncmp (configure_time_path, DBUS_PREFIX "/",
02084                 strlen (DBUS_PREFIX) + 1))) {
02085      strcat (retval, configure_time_path);
02086      return retval;
02087   }
02088 
02089   strcpy (retval, runtime_prefix);
02090   strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
02091 
02092   /* Somehow, in some situations, backslashes get collapsed in the string.
02093    * Since windows C library accepts both forward and backslashes as
02094    * path separators, convert all backslashes to forward slashes.
02095    */
02096 
02097   for(i = 0; retval[i] != '\0'; i++) {
02098     if(retval[i] == '\\')
02099       retval[i] = '/';
02100   }
02101   return retval;
02102 #endif
02103 }
02104 
02105 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
02106 
02107 #if defined(_MSC_VER) || defined(DBUS_WINCE)
02108 # ifdef BACKTRACES
02109 #  undef BACKTRACES
02110 # endif
02111 #else
02112 # define BACKTRACES
02113 #endif
02114 
02115 #ifdef BACKTRACES
02116 /*
02117  * Backtrace Generator
02118  *
02119  * Copyright 2004 Eric Poech
02120  * Copyright 2004 Robert Shearman
02121  *
02122  * This library is free software; you can redistribute it and/or
02123  * modify it under the terms of the GNU Lesser General Public
02124  * License as published by the Free Software Foundation; either
02125  * version 2.1 of the License, or (at your option) any later version.
02126  *
02127  * This library is distributed in the hope that it will be useful,
02128  * but WITHOUT ANY WARRANTY; without even the implied warranty of
02129  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
02130  * Lesser General Public License for more details.
02131  *
02132  * You should have received a copy of the GNU Lesser General Public
02133  * License along with this library; if not, write to the Free Software
02134  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
02135  */
02136 
02137 #include <winver.h>
02138 #include <imagehlp.h>
02139 #include <stdio.h>
02140 
02141 #define DPRINTF _dbus_warn
02142 
02143 #ifdef _MSC_VER
02144 #define BOOL int
02145 
02146 #define __i386__
02147 #endif
02148 
02149 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
02150 
02151 //MAKE_FUNCPTR(StackWalk);
02152 //MAKE_FUNCPTR(SymGetModuleBase);
02153 //MAKE_FUNCPTR(SymFunctionTableAccess);
02154 //MAKE_FUNCPTR(SymInitialize);
02155 //MAKE_FUNCPTR(SymGetSymFromAddr);
02156 //MAKE_FUNCPTR(SymGetModuleInfo);
02157 static BOOL (WINAPI *pStackWalk)(
02158   DWORD MachineType,
02159   HANDLE hProcess,
02160   HANDLE hThread,
02161   LPSTACKFRAME StackFrame,
02162   PVOID ContextRecord,
02163   PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02164   PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02165   PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02166   PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02167 );
02168 #ifdef _WIN64
02169 static DWORD64 (WINAPI *pSymGetModuleBase)(
02170   HANDLE hProcess,
02171   DWORD64 dwAddr
02172 );
02173 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02174   HANDLE hProcess,
02175   DWORD64 AddrBase
02176 );
02177 #else
02178 static DWORD (WINAPI *pSymGetModuleBase)(
02179   HANDLE hProcess,
02180   DWORD dwAddr
02181 );
02182 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02183   HANDLE hProcess,
02184   DWORD AddrBase
02185 );
02186 #endif
02187 static BOOL  (WINAPI *pSymInitialize)(
02188   HANDLE hProcess,
02189   PSTR UserSearchPath,
02190   BOOL fInvadeProcess
02191 );
02192 static BOOL  (WINAPI *pSymGetSymFromAddr)(
02193   HANDLE hProcess,
02194   DWORD Address,
02195   PDWORD Displacement,
02196   PIMAGEHLP_SYMBOL Symbol
02197 );
02198 static BOOL  (WINAPI *pSymGetModuleInfo)(
02199   HANDLE hProcess,
02200   DWORD dwAddr,
02201   PIMAGEHLP_MODULE ModuleInfo
02202 );
02203 static DWORD  (WINAPI *pSymSetOptions)(
02204   DWORD SymOptions
02205 );
02206 
02207 
02208 static BOOL init_backtrace()
02209 {
02210     HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
02211 /*
02212     #define GETFUNC(x) \
02213     p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
02214     if (!p##x) \
02215     { \
02216         return FALSE; \
02217     }
02218     */
02219 
02220 
02221 //    GETFUNC(StackWalk);
02222 //    GETFUNC(SymGetModuleBase);
02223 //    GETFUNC(SymFunctionTableAccess);
02224 //    GETFUNC(SymInitialize);
02225 //    GETFUNC(SymGetSymFromAddr);
02226 //    GETFUNC(SymGetModuleInfo);
02227 
02228 #define FUNC(x) #x
02229 
02230       pStackWalk = (BOOL  (WINAPI *)(
02231 DWORD MachineType,
02232 HANDLE hProcess,
02233 HANDLE hThread,
02234 LPSTACKFRAME StackFrame,
02235 PVOID ContextRecord,
02236 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02237 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02238 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02239 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02240 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
02241 #ifdef _WIN64
02242     pSymGetModuleBase=(DWORD64  (WINAPI *)(
02243   HANDLE hProcess,
02244   DWORD64 dwAddr
02245 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02246     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02247   HANDLE hProcess,
02248   DWORD64 AddrBase
02249 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02250 #else
02251     pSymGetModuleBase=(DWORD  (WINAPI *)(
02252   HANDLE hProcess,
02253   DWORD dwAddr
02254 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02255     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02256   HANDLE hProcess,
02257   DWORD AddrBase
02258 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02259 #endif
02260     pSymInitialize = (BOOL  (WINAPI *)(
02261   HANDLE hProcess,
02262   PSTR UserSearchPath,
02263   BOOL fInvadeProcess
02264 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
02265     pSymGetSymFromAddr = (BOOL  (WINAPI *)(
02266   HANDLE hProcess,
02267   DWORD Address,
02268   PDWORD Displacement,
02269   PIMAGEHLP_SYMBOL Symbol
02270 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
02271     pSymGetModuleInfo = (BOOL  (WINAPI *)(
02272   HANDLE hProcess,
02273   DWORD dwAddr,
02274   PIMAGEHLP_MODULE ModuleInfo
02275 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
02276 pSymSetOptions = (DWORD  (WINAPI *)(
02277 DWORD SymOptions
02278 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
02279 
02280 
02281     pSymSetOptions(SYMOPT_UNDNAME);
02282 
02283     pSymInitialize(GetCurrentProcess(), NULL, TRUE);
02284 
02285     return TRUE;
02286 }
02287 
02288 static void dump_backtrace_for_thread(HANDLE hThread)
02289 {
02290     STACKFRAME sf;
02291     CONTEXT context;
02292     DWORD dwImageType;
02293 
02294     if (!pStackWalk)
02295         if (!init_backtrace())
02296             return;
02297 
02298     /* can't use this function for current thread as GetThreadContext
02299      * doesn't support getting context from current thread */
02300     if (hThread == GetCurrentThread())
02301         return;
02302 
02303     DPRINTF("Backtrace:\n");
02304 
02305     _DBUS_ZERO(context);
02306     context.ContextFlags = CONTEXT_FULL;
02307 
02308     SuspendThread(hThread);
02309 
02310     if (!GetThreadContext(hThread, &context))
02311     {
02312         DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
02313         ResumeThread(hThread);
02314         return;
02315     }
02316 
02317     _DBUS_ZERO(sf);
02318 
02319 #ifdef __i386__
02320     sf.AddrFrame.Offset = context.Ebp;
02321     sf.AddrFrame.Mode = AddrModeFlat;
02322     sf.AddrPC.Offset = context.Eip;
02323     sf.AddrPC.Mode = AddrModeFlat;
02324     dwImageType = IMAGE_FILE_MACHINE_I386;
02325 #elif _M_X64
02326   dwImageType                = IMAGE_FILE_MACHINE_AMD64;
02327   sf.AddrPC.Offset    = context.Rip;
02328   sf.AddrPC.Mode      = AddrModeFlat;
02329   sf.AddrFrame.Offset = context.Rsp;
02330   sf.AddrFrame.Mode   = AddrModeFlat;
02331   sf.AddrStack.Offset = context.Rsp;
02332   sf.AddrStack.Mode   = AddrModeFlat;
02333 #elif _M_IA64
02334   dwImageType                 = IMAGE_FILE_MACHINE_IA64;
02335   sf.AddrPC.Offset    = context.StIIP;
02336   sf.AddrPC.Mode      = AddrModeFlat;
02337   sf.AddrFrame.Offset = context.IntSp;
02338   sf.AddrFrame.Mode   = AddrModeFlat;
02339   sf.AddrBStore.Offset= context.RsBSP;
02340   sf.AddrBStore.Mode  = AddrModeFlat;
02341   sf.AddrStack.Offset = context.IntSp;
02342   sf.AddrStack.Mode   = AddrModeFlat;
02343 #else
02344 # error You need to fill in the STACKFRAME structure for your architecture
02345 #endif
02346 
02347     while (pStackWalk(dwImageType, GetCurrentProcess(),
02348                      hThread, &sf, &context, NULL, pSymFunctionTableAccess,
02349                      pSymGetModuleBase, NULL))
02350     {
02351         BYTE buffer[256];
02352         IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
02353         DWORD dwDisplacement;
02354 
02355         pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
02356         pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
02357 
02358         if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
02359                                 &dwDisplacement, pSymbol))
02360         {
02361             IMAGEHLP_MODULE ModuleInfo;
02362             ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
02363 
02364             if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
02365                                    &ModuleInfo))
02366                 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
02367             else
02368                 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
02369                     sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
02370         }
02371         else if (dwDisplacement)
02372             DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
02373         else
02374             DPRINTF("4\t%s\n", pSymbol->Name);
02375     }
02376 
02377     ResumeThread(hThread);
02378 }
02379 
02380 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
02381 {
02382     dump_backtrace_for_thread((HANDLE)lpParameter);
02383     return 0;
02384 }
02385 
02386 /* cannot get valid context from current thread, so we have to execute
02387  * backtrace from another thread */
02388 static void dump_backtrace()
02389 {
02390     HANDLE hCurrentThread;
02391     HANDLE hThread;
02392     DWORD dwThreadId;
02393     DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
02394         GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
02395     hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
02396         0, &dwThreadId);
02397     WaitForSingleObject(hThread, INFINITE);
02398     CloseHandle(hThread);
02399     CloseHandle(hCurrentThread);
02400 }
02401 #endif
02402 #endif /* asserts or tests enabled */
02403 
02404 #ifdef BACKTRACES
02405 void _dbus_print_backtrace(void)
02406 {
02407   init_backtrace();
02408   dump_backtrace();
02409 }
02410 #else
02411 void _dbus_print_backtrace(void)
02412 {
02413   _dbus_verbose ("  D-Bus not compiled with backtrace support\n");
02414 }
02415 #endif
02416 
02417 static dbus_uint32_t fromAscii(char ascii)
02418 {
02419     if(ascii >= '0' && ascii <= '9')
02420         return ascii - '0';
02421     if(ascii >= 'A' && ascii <= 'F')
02422         return ascii - 'A' + 10;
02423     if(ascii >= 'a' && ascii <= 'f')
02424         return ascii - 'a' + 10;
02425     return 0;    
02426 }
02427 
02428 dbus_bool_t _dbus_read_local_machine_uuid   (DBusGUID         *machine_id,
02429                                              dbus_bool_t       create_if_not_found,
02430                                              DBusError        *error)
02431 {
02432 #ifdef DBUS_WINCE
02433         return TRUE;
02434   // TODO
02435 #else
02436     HW_PROFILE_INFOA info;
02437     char *lpc = &info.szHwProfileGuid[0];
02438     dbus_uint32_t u;
02439 
02440     //  the hw-profile guid lives long enough
02441     if(!GetCurrentHwProfileA(&info))
02442       {
02443         dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
02444         return FALSE;  
02445       }
02446 
02447     // Form: {12340001-4980-1920-6788-123456789012}
02448     lpc++;
02449     // 12340001
02450     u = ((fromAscii(lpc[0]) <<  0) |
02451          (fromAscii(lpc[1]) <<  4) |
02452          (fromAscii(lpc[2]) <<  8) |
02453          (fromAscii(lpc[3]) << 12) |
02454          (fromAscii(lpc[4]) << 16) |
02455          (fromAscii(lpc[5]) << 20) |
02456          (fromAscii(lpc[6]) << 24) |
02457          (fromAscii(lpc[7]) << 28));
02458     machine_id->as_uint32s[0] = u;
02459 
02460     lpc += 9;
02461     // 4980-1920
02462     u = ((fromAscii(lpc[0]) <<  0) |
02463          (fromAscii(lpc[1]) <<  4) |
02464          (fromAscii(lpc[2]) <<  8) |
02465          (fromAscii(lpc[3]) << 12) |
02466          (fromAscii(lpc[5]) << 16) |
02467          (fromAscii(lpc[6]) << 20) |
02468          (fromAscii(lpc[7]) << 24) |
02469          (fromAscii(lpc[8]) << 28));
02470     machine_id->as_uint32s[1] = u;
02471     
02472     lpc += 10;
02473     // 6788-1234
02474     u = ((fromAscii(lpc[0]) <<  0) |
02475          (fromAscii(lpc[1]) <<  4) |
02476          (fromAscii(lpc[2]) <<  8) |
02477          (fromAscii(lpc[3]) << 12) |
02478          (fromAscii(lpc[5]) << 16) |
02479          (fromAscii(lpc[6]) << 20) |
02480          (fromAscii(lpc[7]) << 24) |
02481          (fromAscii(lpc[8]) << 28));
02482     machine_id->as_uint32s[2] = u;
02483     
02484     lpc += 9;
02485     // 56789012
02486     u = ((fromAscii(lpc[0]) <<  0) |
02487          (fromAscii(lpc[1]) <<  4) |
02488          (fromAscii(lpc[2]) <<  8) |
02489          (fromAscii(lpc[3]) << 12) |
02490          (fromAscii(lpc[4]) << 16) |
02491          (fromAscii(lpc[5]) << 20) |
02492          (fromAscii(lpc[6]) << 24) |
02493          (fromAscii(lpc[7]) << 28));
02494     machine_id->as_uint32s[3] = u;
02495 #endif
02496     return TRUE;
02497 }
02498 
02499 static
02500 HANDLE _dbus_global_lock (const char *mutexname)
02501 {
02502   HANDLE mutex;
02503   DWORD gotMutex;
02504 
02505   mutex = CreateMutexA( NULL, FALSE, mutexname );
02506   if( !mutex )
02507     {
02508       return FALSE;
02509     }
02510 
02511    gotMutex = WaitForSingleObject( mutex, INFINITE );
02512    switch( gotMutex )
02513      {
02514        case WAIT_ABANDONED:
02515                ReleaseMutex (mutex);
02516                CloseHandle (mutex);
02517                return 0;
02518        case WAIT_FAILED:
02519        case WAIT_TIMEOUT:
02520                return 0;
02521      }
02522 
02523    return mutex;
02524 }
02525 
02526 static
02527 void _dbus_global_unlock (HANDLE mutex)
02528 {
02529   ReleaseMutex (mutex);
02530   CloseHandle (mutex); 
02531 }
02532 
02533 // for proper cleanup in dbus-daemon
02534 static HANDLE hDBusDaemonMutex = NULL;
02535 static HANDLE hDBusSharedMem = NULL;
02536 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02537 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
02538 // sync _dbus_get_autolaunch_address
02539 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
02540 // mutex to determine if dbus-daemon is already started (per user)
02541 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
02542 // named shm for dbus adress info (per user)
02543 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
02544 
02545 static dbus_bool_t
02546 _dbus_get_install_root_as_hash(DBusString *out)
02547 {
02548     DBusString install_path;
02549 
02550     char path[MAX_PATH*2];
02551     int path_size = sizeof(path);
02552 
02553     if (!_dbus_get_install_root(path,path_size))
02554         return FALSE;
02555 
02556     _dbus_string_init(&install_path);
02557     _dbus_string_append(&install_path,path);
02558 
02559     _dbus_string_init(out);
02560     _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
02561 
02562     if (!_dbus_sha_compute (&install_path, out))
02563         return FALSE;
02564 
02565     return TRUE;
02566 }
02567 
02568 static dbus_bool_t
02569 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
02570 {
02571   _dbus_string_init(out);
02572   _dbus_string_append(out,basestring);
02573 
02574   if (!scope)
02575     {
02576       return TRUE;
02577     }
02578   else if (strcmp(scope,"*install-path") == 0
02579         // for 1.3 compatibility
02580         || strcmp(scope,"install-path") == 0)
02581     {
02582       DBusString temp;
02583       if (!_dbus_get_install_root_as_hash(&temp))
02584         {
02585           _dbus_string_free(out);
02586            return FALSE;
02587         }
02588       _dbus_string_append(out,"-");
02589       _dbus_string_append(out,_dbus_string_get_const_data(&temp));
02590       _dbus_string_free(&temp);
02591     }
02592   else if (strcmp(scope,"*user") == 0)
02593     {
02594       _dbus_string_append(out,"-");
02595       if (!_dbus_append_user_from_current_process(out))
02596         {
02597            _dbus_string_free(out);
02598            return FALSE;
02599         }
02600     }
02601   else if (strlen(scope) > 0)
02602     {
02603       _dbus_string_append(out,"-");
02604       _dbus_string_append(out,scope);
02605       return TRUE;
02606     }
02607   return TRUE;
02608 }
02609 
02610 static dbus_bool_t
02611 _dbus_get_shm_name (DBusString *out,const char *scope)
02612 {
02613   return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
02614 }
02615 
02616 static dbus_bool_t
02617 _dbus_get_mutex_name (DBusString *out,const char *scope)
02618 {
02619   return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
02620 }
02621 
02622 dbus_bool_t
02623 _dbus_daemon_is_session_bus_address_published (const char *scope)
02624 {
02625   HANDLE lock;
02626   HANDLE mutex;
02627   DBusString mutex_name;
02628   DWORD ret;
02629 
02630   if (!_dbus_get_mutex_name(&mutex_name,scope))
02631     {
02632       _dbus_string_free( &mutex_name );
02633       return FALSE;
02634     }
02635 
02636   if (hDBusDaemonMutex)
02637       return TRUE;
02638 
02639   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02640   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02641 
02642   // we use CreateMutex instead of OpenMutex because of possible race conditions,
02643   // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
02644   hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02645 
02646   /* The client uses mutex ownership to detect a running server, so the server should do so too.
02647      Fortunally the client deletes the mutex in the lock protected area, so checking presence 
02648      will work too.  */
02649 
02650   _dbus_global_unlock( lock );
02651 
02652   _dbus_string_free( &mutex_name );
02653 
02654   if (hDBusDaemonMutex  == NULL)
02655       return FALSE;
02656   if (GetLastError() == ERROR_ALREADY_EXISTS)
02657     {
02658       CloseHandle(hDBusDaemonMutex);
02659       hDBusDaemonMutex = NULL;
02660       return TRUE;
02661     }
02662   // mutex wasn't created before, so return false.
02663   // We leave the mutex name allocated for later reusage
02664   // in _dbus_daemon_publish_session_bus_address.
02665   return FALSE;
02666 }
02667 
02668 dbus_bool_t
02669 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
02670 {
02671   HANDLE lock;
02672   char *shared_addr = NULL;
02673   DWORD ret;
02674   char addressInfo[1024];
02675   DBusString shm_name;
02676   DBusString mutex_name;
02677 
02678   _dbus_assert (address);
02679 
02680   if (!_dbus_get_mutex_name(&mutex_name,scope))
02681     {
02682       _dbus_string_free( &mutex_name );
02683       return FALSE;
02684     }
02685 
02686   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02687   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02688 
02689   if (!hDBusDaemonMutex)
02690     {
02691       hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02692     }
02693   _dbus_string_free( &mutex_name );
02694 
02695   // acquire the mutex
02696   if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
02697     {
02698       _dbus_global_unlock( lock );
02699       CloseHandle( hDBusDaemonMutex );
02700       return FALSE;
02701     }
02702 
02703   if (!_dbus_get_shm_name(&shm_name,scope))
02704     {
02705       _dbus_string_free( &shm_name );
02706       _dbus_global_unlock( lock );
02707       return FALSE;
02708     }
02709 
02710   // create shm
02711   hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
02712                                        0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
02713   _dbus_assert( hDBusSharedMem );
02714 
02715   shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
02716 
02717   _dbus_assert (shared_addr);
02718 
02719   strcpy( shared_addr, address);
02720 
02721   // cleanup
02722   UnmapViewOfFile( shared_addr );
02723 
02724   _dbus_global_unlock( lock );
02725   _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
02726 
02727   _dbus_string_free( &shm_name );
02728   return TRUE;
02729 }
02730 
02731 void
02732 _dbus_daemon_unpublish_session_bus_address (void)
02733 {
02734   HANDLE lock;
02735 
02736   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02737   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02738 
02739   CloseHandle( hDBusSharedMem );
02740 
02741   hDBusSharedMem = NULL;
02742 
02743   ReleaseMutex( hDBusDaemonMutex );
02744 
02745   CloseHandle( hDBusDaemonMutex );
02746 
02747   hDBusDaemonMutex = NULL;
02748 
02749   _dbus_global_unlock( lock );
02750 }
02751 
02752 static dbus_bool_t
02753 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
02754 {
02755   HANDLE sharedMem;
02756   char *shared_addr;
02757   int i;
02758 
02759   // read shm
02760   for(i=0;i<20;++i) {
02761       // we know that dbus-daemon is available, so we wait until shm is available
02762       sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
02763       if( sharedMem == 0 )
02764           Sleep( 100 );
02765       if ( sharedMem != 0)
02766           break;
02767   }
02768 
02769   if( sharedMem == 0 )
02770       return FALSE;
02771 
02772   shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
02773 
02774   if( !shared_addr )
02775       return FALSE;
02776 
02777   _dbus_string_init( address );
02778 
02779   _dbus_string_append( address, shared_addr );
02780 
02781   // cleanup
02782   UnmapViewOfFile( shared_addr );
02783 
02784   CloseHandle( sharedMem );
02785 
02786   return TRUE;
02787 }
02788 
02789 static dbus_bool_t
02790 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
02791 {
02792   HANDLE lock;
02793   HANDLE daemon;
02794   DBusString mutex_name;
02795   dbus_bool_t bRet = TRUE;
02796 
02797   if (!_dbus_get_mutex_name(&mutex_name,scope))
02798     {
02799       _dbus_string_free( &mutex_name );
02800       return FALSE;
02801     }
02802 
02803   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02804   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02805 
02806   // do checks
02807   daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02808   if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
02809     {
02810       ReleaseMutex (daemon);
02811       CloseHandle (daemon);
02812 
02813       _dbus_global_unlock( lock );
02814       _dbus_string_free( &mutex_name );
02815       return FALSE;
02816     }
02817 
02818   // read shm
02819   bRet = _dbus_get_autolaunch_shm( address, shm_name );
02820 
02821   // cleanup
02822   CloseHandle ( daemon );
02823 
02824   _dbus_global_unlock( lock );
02825   _dbus_string_free( &mutex_name );
02826 
02827   return bRet;
02828 }
02829 
02830 dbus_bool_t
02831 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
02832                               DBusError *error)
02833 {
02834   HANDLE mutex;
02835   STARTUPINFOA si;
02836   PROCESS_INFORMATION pi;
02837   dbus_bool_t retval = FALSE;
02838   LPSTR lpFile;
02839   char dbus_exe_path[MAX_PATH];
02840   char dbus_args[MAX_PATH * 2];
02841   const char * daemon_name = DBUS_DAEMON_NAME ".exe";
02842   DBusString shm_name;
02843 
02844   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02845 
02846   if (!_dbus_get_shm_name(&shm_name,scope))
02847     {
02848         dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
02849         return FALSE;
02850     }
02851 
02852   mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
02853 
02854   if (_dbus_daemon_already_runs(address,&shm_name,scope))
02855     {
02856         _dbus_verbose( "found running dbus daemon at %s\n",
02857                        _dbus_string_get_const_data (&shm_name) );
02858         retval = TRUE;
02859         goto out;
02860     }
02861 
02862   if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
02863     {
02864       // Look in directory containing dbus shared library
02865       HMODULE hmod;
02866       char dbus_module_path[MAX_PATH];
02867       DWORD rc;
02868 
02869       _dbus_verbose( "did not found dbus daemon executable on default search path, "
02870             "trying path where dbus shared library is located");
02871 
02872       hmod = _dbus_win_get_dll_hmodule();
02873       rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
02874       if (rc <= 0)
02875         {
02876           dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
02877           retval = FALSE;
02878           goto out;
02879         }
02880       else
02881         {
02882           char *ext_idx = strrchr(dbus_module_path, '\\');
02883           if (ext_idx)
02884           *ext_idx = '\0';
02885           if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
02886             {
02887               dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
02888               retval = FALSE;
02889               printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
02890               printf ("or start the daemon manually\n\n");
02891               goto out;
02892             }
02893           _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
02894         }
02895     }
02896 
02897 
02898   // Create process
02899   ZeroMemory( &si, sizeof(si) );
02900   si.cb = sizeof(si);
02901   ZeroMemory( &pi, sizeof(pi) );
02902 
02903   _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path,  " --session");
02904 
02905 //  argv[i] = "--config-file=bus\\session.conf";
02906 //  printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
02907   if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
02908     {
02909       CloseHandle (pi.hThread);
02910       CloseHandle (pi.hProcess);
02911       retval = _dbus_get_autolaunch_shm( address, &shm_name );
02912       if (retval == FALSE)
02913         dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
02914     }
02915   else
02916     {
02917       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
02918       retval = FALSE;
02919     }
02920 
02921 out:
02922   if (retval)
02923     _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02924   else
02925     _DBUS_ASSERT_ERROR_IS_SET (error);
02926   
02927   _dbus_global_unlock (mutex);
02928 
02929   return retval;
02930  }
02931 
02932 
02939 dbus_bool_t
02940 _dbus_make_file_world_readable(const DBusString *filename,
02941                                DBusError *error)
02942 {
02943   // TODO
02944   return TRUE;
02945 }
02946 
02953 static const char *
02954 _dbus_windows_get_datadir (void)
02955 {
02956         return _dbus_replace_install_prefix(DBUS_DATADIR);
02957 }
02958 
02959 #undef DBUS_DATADIR
02960 #define DBUS_DATADIR _dbus_windows_get_datadir ()
02961 
02962 
02963 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
02964 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
02965 
02982 dbus_bool_t 
02983 _dbus_get_standard_session_servicedirs (DBusList **dirs)
02984 {
02985   const char *common_progs;
02986   DBusString servicedir_path;
02987 
02988   if (!_dbus_string_init (&servicedir_path))
02989     return FALSE;
02990 
02991 #ifdef DBUS_WINCE
02992   {
02993     /* On Windows CE, we adjust datadir dynamically to installation location.  */
02994     const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
02995 
02996     if (data_dir != NULL)
02997       {
02998         if (!_dbus_string_append (&servicedir_path, data_dir))
02999           goto oom;
03000         
03001         if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03002           goto oom;
03003       }
03004   }
03005 #else
03006 /*
03007  the code for accessing services requires absolute base pathes
03008  in case DBUS_DATADIR is relative make it absolute
03009 */
03010 #ifdef DBUS_WIN
03011   {
03012     DBusString p;
03013 
03014     _dbus_string_init_const (&p, DBUS_DATADIR);
03015 
03016     if (!_dbus_path_is_absolute (&p))
03017       {
03018         char install_root[1000];
03019         if (_dbus_get_install_root (install_root, sizeof(install_root)))
03020           if (!_dbus_string_append (&servicedir_path, install_root))
03021             goto oom;
03022       }
03023   }
03024 #endif
03025   if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
03026     goto oom;
03027 
03028   if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03029     goto oom;
03030 #endif
03031 
03032   common_progs = _dbus_getenv ("CommonProgramFiles");
03033 
03034   if (common_progs != NULL)
03035     {
03036       if (!_dbus_string_append (&servicedir_path, common_progs))
03037         goto oom;
03038 
03039       if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03040         goto oom;
03041     }
03042 
03043   if (!_dbus_split_paths_and_append (&servicedir_path, 
03044                                DBUS_STANDARD_SESSION_SERVICEDIR, 
03045                                dirs))
03046     goto oom;
03047 
03048   _dbus_string_free (&servicedir_path);  
03049   return TRUE;
03050 
03051  oom:
03052   _dbus_string_free (&servicedir_path);
03053   return FALSE;
03054 }
03055 
03074 dbus_bool_t
03075 _dbus_get_standard_system_servicedirs (DBusList **dirs)
03076 {
03077   *dirs = NULL;
03078   return TRUE;
03079 }
03080 
03081 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
03082 
03090 dbus_int32_t
03091 _dbus_atomic_inc (DBusAtomic *atomic)
03092 {
03093   // +/- 1 is needed here!
03094   // no volatile argument with mingw
03095   return InterlockedIncrement (&atomic->value) - 1;
03096 }
03097 
03105 dbus_int32_t
03106 _dbus_atomic_dec (DBusAtomic *atomic)
03107 {
03108   // +/- 1 is needed here!
03109   // no volatile argument with mingw
03110   return InterlockedDecrement (&atomic->value) + 1;
03111 }
03112 
03120 dbus_int32_t
03121 _dbus_atomic_get (DBusAtomic *atomic)
03122 {
03123   /* this is what GLib does, hopefully it's right... */
03124   MemoryBarrier ();
03125   return atomic->value;
03126 }
03127 
03135 void
03136 _dbus_flush_caches (void)
03137 {
03138 }
03139 
03146 dbus_bool_t
03147 _dbus_get_is_errno_eagain_or_ewouldblock (void)
03148 {
03149   return errno == WSAEWOULDBLOCK;
03150 }
03151 
03159 dbus_bool_t
03160 _dbus_get_install_root(char *prefix, int len)
03161 {
03162     //To find the prefix, we cut the filename and also \bin\ if present
03163     char* p = 0;
03164     int i;
03165     DWORD pathLength;
03166     char *lastSlash;
03167     SetLastError( 0 );
03168     pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
03169     if ( pathLength == 0 || GetLastError() != 0 ) {
03170         *prefix = '\0';
03171         return FALSE;
03172     }
03173     lastSlash = _mbsrchr(prefix, '\\');
03174     if (lastSlash == NULL) {
03175         *prefix = '\0';
03176         return FALSE;
03177     }
03178     //cut off binary name
03179     lastSlash[1] = 0;
03180 
03181     //cut possible "\\bin"
03182 
03183     //this fails if we are in a double-byte system codepage and the
03184     //folder's name happens to end with the *bytes*
03185     //"\\bin"... (I.e. the second byte of some Han character and then
03186     //the Latin "bin", but that is not likely I think...
03187     if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
03188         lastSlash[-3] = 0;
03189     else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
03190         lastSlash[-9] = 0;
03191     else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
03192         lastSlash[-11] = 0;
03193 
03194     return TRUE;
03195 }
03196 
03210 dbus_bool_t 
03211 _dbus_get_config_file_name(DBusString *config_file, char *s)
03212 {
03213   char path[MAX_PATH*2];
03214   int path_size = sizeof(path);
03215 
03216   if (!_dbus_get_install_root(path,path_size))
03217     return FALSE;
03218 
03219   if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
03220     return FALSE;
03221   strcat(path,"etc\\");
03222   strcat(path,s);
03223   if (_dbus_file_exists(path)) 
03224     {
03225       // find path from executable 
03226       if (!_dbus_string_append (config_file, path))
03227         return FALSE;
03228     }
03229   else 
03230     {
03231       if (!_dbus_get_install_root(path,path_size))
03232         return FALSE;
03233       if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
03234         return FALSE;
03235       strcat(path,"etc\\dbus-1\\");
03236       strcat(path,s);
03237   
03238       if (_dbus_file_exists(path)) 
03239         {
03240           if (!_dbus_string_append (config_file, path))
03241             return FALSE;
03242         }
03243       else
03244         {
03245           if (!_dbus_get_install_root(path,path_size))
03246             return FALSE;
03247           if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
03248             return FALSE;
03249           strcat(path,"bus\\");
03250           strcat(path,s);
03251           
03252           if (_dbus_file_exists(path)) 
03253             {
03254               if (!_dbus_string_append (config_file, path))
03255                 return FALSE;
03256             }
03257         }
03258     }
03259   return TRUE;
03260 }    
03261 
03270 dbus_bool_t
03271 _dbus_append_system_config_file (DBusString *str)
03272 {
03273   return _dbus_get_config_file_name(str, "system.conf");
03274 }
03275 
03282 dbus_bool_t
03283 _dbus_append_session_config_file (DBusString *str)
03284 {
03285   return _dbus_get_config_file_name(str, "session.conf");
03286 }
03287 
03288 /* See comment in dbus-sysdeps-unix.c */
03289 dbus_bool_t
03290 _dbus_lookup_session_address (dbus_bool_t *supported,
03291                               DBusString  *address,
03292                               DBusError   *error)
03293 {
03294   /* Probably fill this in with something based on COM? */
03295   *supported = FALSE;
03296   return TRUE;
03297 }
03298 
03312 dbus_bool_t
03313 _dbus_append_keyring_directory_for_credentials (DBusString      *directory,
03314                                                 DBusCredentials *credentials)
03315 {
03316   DBusString homedir;
03317   DBusString dotdir;
03318   dbus_uid_t uid;
03319   const char *homepath;
03320   const char *homedrive;
03321 
03322   _dbus_assert (credentials != NULL);
03323   _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
03324   
03325   if (!_dbus_string_init (&homedir))
03326     return FALSE;
03327 
03328   homedrive = _dbus_getenv("HOMEDRIVE");
03329   if (homedrive != NULL && *homedrive != '\0')
03330     {
03331       _dbus_string_append(&homedir,homedrive);
03332     }
03333 
03334   homepath = _dbus_getenv("HOMEPATH");
03335   if (homepath != NULL && *homepath != '\0')
03336     {
03337       _dbus_string_append(&homedir,homepath);
03338     }
03339   
03340 #ifdef DBUS_BUILD_TESTS
03341   {
03342     const char *override;
03343     
03344     override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
03345     if (override != NULL && *override != '\0')
03346       {
03347         _dbus_string_set_length (&homedir, 0);
03348         if (!_dbus_string_append (&homedir, override))
03349           goto failed;
03350 
03351         _dbus_verbose ("Using fake homedir for testing: %s\n",
03352                        _dbus_string_get_const_data (&homedir));
03353       }
03354     else
03355       {
03356         static dbus_bool_t already_warned = FALSE;
03357         if (!already_warned)
03358           {
03359             _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
03360             already_warned = TRUE;
03361           }
03362       }
03363   }
03364 #endif
03365 
03366 #ifdef DBUS_WINCE
03367   /* It's not possible to create a .something directory in Windows CE
03368      using the file explorer.  */
03369 #define KEYRING_DIR "dbus-keyrings"
03370 #else
03371 #define KEYRING_DIR ".dbus-keyrings"
03372 #endif
03373 
03374   _dbus_string_init_const (&dotdir, KEYRING_DIR);
03375   if (!_dbus_concat_dir_and_file (&homedir,
03376                                   &dotdir))
03377     goto failed;
03378   
03379   if (!_dbus_string_copy (&homedir, 0,
03380                           directory, _dbus_string_get_length (directory))) {
03381     goto failed;
03382   }
03383 
03384   _dbus_string_free (&homedir);
03385   return TRUE;
03386   
03387  failed: 
03388   _dbus_string_free (&homedir);
03389   return FALSE;
03390 }
03391 
03397 dbus_bool_t 
03398 _dbus_file_exists (const char *file)
03399 {
03400   DWORD attributes = GetFileAttributesA (file);
03401 
03402   if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
03403     return TRUE;
03404   else
03405     return FALSE;  
03406 }
03407 
03415 const char*
03416 _dbus_strerror (int error_number)
03417 {
03418 #ifdef DBUS_WINCE
03419   // TODO
03420   return "unknown";
03421 #else
03422   const char *msg;
03423 
03424   switch (error_number)
03425     {
03426     case WSAEINTR:
03427       return "Interrupted function call";
03428     case WSAEACCES:
03429       return "Permission denied";
03430     case WSAEFAULT:
03431       return "Bad address";
03432     case WSAEINVAL:
03433       return "Invalid argument";
03434     case WSAEMFILE:
03435       return "Too many open files";
03436     case WSAEWOULDBLOCK:
03437       return "Resource temporarily unavailable";
03438     case WSAEINPROGRESS:
03439       return "Operation now in progress";
03440     case WSAEALREADY:
03441       return "Operation already in progress";
03442     case WSAENOTSOCK:
03443       return "Socket operation on nonsocket";
03444     case WSAEDESTADDRREQ:
03445       return "Destination address required";
03446     case WSAEMSGSIZE:
03447       return "Message too long";
03448     case WSAEPROTOTYPE:
03449       return "Protocol wrong type for socket";
03450     case WSAENOPROTOOPT:
03451       return "Bad protocol option";
03452     case WSAEPROTONOSUPPORT:
03453       return "Protocol not supported";
03454     case WSAESOCKTNOSUPPORT:
03455       return "Socket type not supported";
03456     case WSAEOPNOTSUPP:
03457       return "Operation not supported";
03458     case WSAEPFNOSUPPORT:
03459       return "Protocol family not supported";
03460     case WSAEAFNOSUPPORT:
03461       return "Address family not supported by protocol family";
03462     case WSAEADDRINUSE:
03463       return "Address already in use";
03464     case WSAEADDRNOTAVAIL:
03465       return "Cannot assign requested address";
03466     case WSAENETDOWN:
03467       return "Network is down";
03468     case WSAENETUNREACH:
03469       return "Network is unreachable";
03470     case WSAENETRESET:
03471       return "Network dropped connection on reset";
03472     case WSAECONNABORTED:
03473       return "Software caused connection abort";
03474     case WSAECONNRESET:
03475       return "Connection reset by peer";
03476     case WSAENOBUFS:
03477       return "No buffer space available";
03478     case WSAEISCONN:
03479       return "Socket is already connected";
03480     case WSAENOTCONN:
03481       return "Socket is not connected";
03482     case WSAESHUTDOWN:
03483       return "Cannot send after socket shutdown";
03484     case WSAETIMEDOUT:
03485       return "Connection timed out";
03486     case WSAECONNREFUSED:
03487       return "Connection refused";
03488     case WSAEHOSTDOWN:
03489       return "Host is down";
03490     case WSAEHOSTUNREACH:
03491       return "No route to host";
03492     case WSAEPROCLIM:
03493       return "Too many processes";
03494     case WSAEDISCON:
03495       return "Graceful shutdown in progress";
03496     case WSATYPE_NOT_FOUND:
03497       return "Class type not found";
03498     case WSAHOST_NOT_FOUND:
03499       return "Host not found";
03500     case WSATRY_AGAIN:
03501       return "Nonauthoritative host not found";
03502     case WSANO_RECOVERY:
03503       return "This is a nonrecoverable error";
03504     case WSANO_DATA:
03505       return "Valid name, no data record of requested type";
03506     case WSA_INVALID_HANDLE:
03507       return "Specified event object handle is invalid";
03508     case WSA_INVALID_PARAMETER:
03509       return "One or more parameters are invalid";
03510     case WSA_IO_INCOMPLETE:
03511       return "Overlapped I/O event object not in signaled state";
03512     case WSA_IO_PENDING:
03513       return "Overlapped operations will complete later";
03514     case WSA_NOT_ENOUGH_MEMORY:
03515       return "Insufficient memory available";
03516     case WSA_OPERATION_ABORTED:
03517       return "Overlapped operation aborted";
03518 #ifdef WSAINVALIDPROCTABLE
03519 
03520     case WSAINVALIDPROCTABLE:
03521       return "Invalid procedure table from service provider";
03522 #endif
03523 #ifdef WSAINVALIDPROVIDER
03524 
03525     case WSAINVALIDPROVIDER:
03526       return "Invalid service provider version number";
03527 #endif
03528 #ifdef WSAPROVIDERFAILEDINIT
03529 
03530     case WSAPROVIDERFAILEDINIT:
03531       return "Unable to initialize a service provider";
03532 #endif
03533 
03534     case WSASYSCALLFAILURE:
03535       return "System call failure";
03536     }
03537   msg = strerror (error_number);
03538   if (msg == NULL)
03539     msg = "unknown";
03540 
03541   return msg;
03542 #endif //DBUS_WINCE
03543 }
03544 
03552 void
03553 _dbus_win_set_error_from_win_error (DBusError *error,
03554                                     int        code)
03555 {
03556   char *msg;
03557 
03558   /* As we want the English message, use the A API */
03559   FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
03560                   FORMAT_MESSAGE_IGNORE_INSERTS |
03561                   FORMAT_MESSAGE_FROM_SYSTEM,
03562                   NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
03563                   (LPSTR) &msg, 0, NULL);
03564   if (msg)
03565     {
03566       char *msg_copy;
03567 
03568       msg_copy = dbus_malloc (strlen (msg));
03569       strcpy (msg_copy, msg);
03570       LocalFree (msg);
03571 
03572       dbus_set_error (error, "win32.error", "%s", msg_copy);
03573     }
03574   else
03575     dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
03576 }
03577 
03578 void
03579 _dbus_win_warn_win_error (const char *message,
03580                           int         code)
03581 {
03582   DBusError error;
03583 
03584   dbus_error_init (&error);
03585   _dbus_win_set_error_from_win_error (&error, code);
03586   _dbus_warn ("%s: %s\n", message, error.message);
03587   dbus_error_free (&error);
03588 }
03589 
03597 dbus_bool_t
03598 _dbus_delete_directory (const DBusString *filename,
03599                         DBusError        *error)
03600 {
03601   const char *filename_c;
03602 
03603   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
03604 
03605   filename_c = _dbus_string_get_const_data (filename);
03606 
03607   if (RemoveDirectoryA (filename_c) == 0)
03608     {
03609       char *emsg = _dbus_win_error_string (GetLastError ());
03610       dbus_set_error (error, _dbus_win_error_from_last_error (),
03611                       "Failed to remove directory %s: %s",
03612                       filename_c, emsg);
03613       _dbus_win_free_error_string (emsg);
03614       return FALSE;
03615     }
03616 
03617   return TRUE;
03618 }
03619 
03626 dbus_bool_t
03627 _dbus_path_is_absolute (const DBusString *filename)
03628 {
03629   if (_dbus_string_get_length (filename) > 0)
03630     return _dbus_string_get_byte (filename, 1) == ':'
03631            || _dbus_string_get_byte (filename, 0) == '\\'
03632            || _dbus_string_get_byte (filename, 0) == '/';
03633   else
03634     return FALSE;
03635 }
03636 
03638 /* tests in dbus-sysdeps-util.c */
03639