D-Bus 1.6.12

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   va_list args_copy;
00542 
00543   bufsize = sizeof (buf);
00544   DBUS_VA_COPY (args_copy, args);
00545   len = _vsnprintf (buf, bufsize - 1, format, args_copy);
00546   va_end (args_copy);
00547 
00548   while (len == -1) /* try again */
00549     {
00550       char *p;
00551 
00552       bufsize *= 2;
00553 
00554       p = malloc (bufsize);
00555 
00556       if (p == NULL)
00557         return -1;
00558 
00559       DBUS_VA_COPY (args_copy, args);
00560       len = _vsnprintf (p, bufsize - 1, format, args_copy);
00561       va_end (args_copy);
00562       free (p);
00563     }
00564 
00565   return len;
00566 }
00567 
00568 
00576 wchar_t *
00577 _dbus_win_utf8_to_utf16 (const char *str,
00578                          DBusError  *error)
00579 {
00580   DBusString s;
00581   int n;
00582   wchar_t *retval;
00583 
00584   _dbus_string_init_const (&s, str);
00585 
00586   if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
00587     {
00588       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
00589       return NULL;
00590     }
00591 
00592   n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
00593 
00594   if (n == 0)
00595     {
00596       _dbus_win_set_error_from_win_error (error, GetLastError ());
00597       return NULL;
00598     }
00599 
00600   retval = dbus_new (wchar_t, n);
00601 
00602   if (!retval)
00603     {
00604       _DBUS_SET_OOM (error);
00605       return NULL;
00606     }
00607 
00608   if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
00609     {
00610       dbus_free (retval);
00611       dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
00612       return NULL;
00613     }
00614 
00615   return retval;
00616 }
00617 
00625 char *
00626 _dbus_win_utf16_to_utf8 (const wchar_t *str,
00627                          DBusError     *error)
00628 {
00629   int n;
00630   char *retval;
00631 
00632   n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
00633 
00634   if (n == 0)
00635     {
00636       _dbus_win_set_error_from_win_error (error, GetLastError ());
00637       return NULL;
00638     }
00639 
00640   retval = dbus_malloc (n);
00641 
00642   if (!retval)
00643     {
00644       _DBUS_SET_OOM (error);
00645       return NULL;
00646     }
00647 
00648   if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
00649     {
00650       dbus_free (retval);
00651       dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
00652       return NULL;
00653     }
00654 
00655   return retval;
00656 }
00657 
00658 
00659 
00660 
00661 
00662 
00663 /************************************************************************
00664  
00665  
00666  ************************************************************************/
00667 
00668 dbus_bool_t
00669 _dbus_win_account_to_sid (const wchar_t *waccount,
00670                           void           **ppsid,
00671                           DBusError       *error)
00672 {
00673   dbus_bool_t retval = FALSE;
00674   DWORD sid_length, wdomain_length;
00675   SID_NAME_USE use;
00676   wchar_t *wdomain;
00677 
00678   *ppsid = NULL;
00679 
00680   sid_length = 0;
00681   wdomain_length = 0;
00682   if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
00683                            NULL, &wdomain_length, &use) &&
00684       GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00685     {
00686       _dbus_win_set_error_from_win_error (error, GetLastError ());
00687       return FALSE;
00688     }
00689 
00690   *ppsid = dbus_malloc (sid_length);
00691   if (!*ppsid)
00692     {
00693       _DBUS_SET_OOM (error);
00694       return FALSE;
00695     }
00696 
00697   wdomain = dbus_new (wchar_t, wdomain_length);
00698   if (!wdomain)
00699     {
00700       _DBUS_SET_OOM (error);
00701       goto out1;
00702     }
00703 
00704   if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
00705                            wdomain, &wdomain_length, &use))
00706     {
00707       _dbus_win_set_error_from_win_error (error, GetLastError ());
00708       goto out2;
00709     }
00710 
00711   if (!IsValidSid ((PSID) *ppsid))
00712     {
00713       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
00714       goto out2;
00715     }
00716 
00717   retval = TRUE;
00718 
00719 out2:
00720   dbus_free (wdomain);
00721 out1:
00722   if (!retval)
00723     {
00724       dbus_free (*ppsid);
00725       *ppsid = NULL;
00726     }
00727 
00728   return retval;
00729 }
00730 
00740 unsigned long
00741 _dbus_pid_for_log (void)
00742 {
00743   return _dbus_getpid ();
00744 }
00745 
00746 
00747 #ifndef DBUS_WINCE
00748 
00752 static dbus_bool_t
00753 _dbus_getsid(char **sid)
00754 {
00755   HANDLE process_token = INVALID_HANDLE_VALUE;
00756   TOKEN_USER *token_user = NULL;
00757   DWORD n;
00758   PSID psid;
00759   int retval = FALSE;
00760   
00761   if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token)) 
00762     {
00763       _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
00764       goto failed;
00765     }
00766   if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
00767             && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00768            || (token_user = alloca (n)) == NULL
00769            || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
00770     {
00771       _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
00772       goto failed;
00773     }
00774   psid = token_user->User.Sid;
00775   if (!IsValidSid (psid))
00776     {
00777       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00778       goto failed;
00779     }
00780   if (!ConvertSidToStringSidA (psid, sid))
00781     {
00782       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00783       goto failed;
00784     }
00785 //okay:
00786   retval = TRUE;
00787 
00788 failed:
00789   if (process_token != INVALID_HANDLE_VALUE)
00790     CloseHandle (process_token);
00791 
00792   _dbus_verbose("_dbus_getsid() returns %d\n",retval);
00793   return retval;
00794 }
00795 #endif
00796 
00797 /************************************************************************
00798  
00799  pipes
00800  
00801  ************************************************************************/
00802 
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 
00824   _dbus_win_startup_winsock ();
00825 
00826   temp = socket (AF_INET, SOCK_STREAM, 0);
00827   if (temp == INVALID_SOCKET)
00828     {
00829       DBUS_SOCKET_SET_ERRNO ();
00830       goto out0;
00831     }
00832 
00833   _DBUS_ZERO (saddr);
00834   saddr.sin_family = AF_INET;
00835   saddr.sin_port = 0;
00836   saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
00837 
00838   if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
00839     {
00840       DBUS_SOCKET_SET_ERRNO ();
00841       goto out0;
00842     }
00843 
00844   if (listen (temp, 1) == SOCKET_ERROR)
00845     {
00846       DBUS_SOCKET_SET_ERRNO ();
00847       goto out0;
00848     }
00849 
00850   len = sizeof (saddr);
00851   if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
00852     {
00853       DBUS_SOCKET_SET_ERRNO ();
00854       goto out0;
00855     }
00856 
00857   socket1 = socket (AF_INET, SOCK_STREAM, 0);
00858   if (socket1 == INVALID_SOCKET)
00859     {
00860       DBUS_SOCKET_SET_ERRNO ();
00861       goto out0;
00862     }
00863 
00864   if (connect (socket1, (struct sockaddr  *)&saddr, len) == SOCKET_ERROR)
00865     {
00866       DBUS_SOCKET_SET_ERRNO ();
00867       goto out1;
00868     }
00869 
00870   socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
00871   if (socket2 == INVALID_SOCKET)
00872     {
00873       DBUS_SOCKET_SET_ERRNO ();
00874       goto out1;
00875     }
00876 
00877   if (!blocking)
00878     {
00879       arg = 1;
00880       if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
00881         {
00882           DBUS_SOCKET_SET_ERRNO ();
00883           goto out2;
00884         }
00885 
00886       arg = 1;
00887       if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
00888         {
00889           DBUS_SOCKET_SET_ERRNO ();
00890           goto out2;
00891         }
00892     }
00893 
00894   *fd1 = socket1;
00895   *fd2 = socket2;
00896 
00897   _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
00898                  *fd1, socket1, *fd2, socket2);
00899 
00900   closesocket (temp);
00901 
00902   return TRUE;
00903 
00904 out2:
00905   closesocket (socket2);
00906 out1:
00907   closesocket (socket1);
00908 out0:
00909   closesocket (temp);
00910 
00911   dbus_set_error (error, _dbus_error_from_errno (errno),
00912                   "Could not setup socket pair: %s",
00913                   _dbus_strerror_from_errno ());
00914 
00915   return FALSE;
00916 }
00917 
00926 int
00927 _dbus_poll (DBusPollFD *fds,
00928             int         n_fds,
00929             int         timeout_milliseconds)
00930 {
00931 #define USE_CHRIS_IMPL 0
00932 
00933 #if USE_CHRIS_IMPL
00934 
00935 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
00936   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
00937   char *msgp;
00938 
00939   int ret = 0;
00940   int i;
00941   struct timeval tv;
00942   int ready;
00943 
00944 #define DBUS_STACK_WSAEVENTS 256
00945   WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
00946   WSAEVENT *pEvents = NULL;
00947   if (n_fds > DBUS_STACK_WSAEVENTS)
00948     pEvents = calloc(sizeof(WSAEVENT), n_fds);
00949   else
00950     pEvents = eventsOnStack;
00951 
00952 
00953 #ifdef DBUS_ENABLE_VERBOSE_MODE
00954   msgp = msg;
00955   msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
00956   for (i = 0; i < n_fds; i++)
00957     {
00958       DBusPollFD *fdp = &fds[i];
00959 
00960 
00961       if (fdp->events & _DBUS_POLLIN)
00962         msgp += sprintf (msgp, "R:%d ", fdp->fd);
00963 
00964       if (fdp->events & _DBUS_POLLOUT)
00965         msgp += sprintf (msgp, "W:%d ", fdp->fd);
00966 
00967       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
00968 
00969       // FIXME: more robust code for long  msg
00970       //        create on heap when msg[] becomes too small
00971       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
00972         {
00973           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
00974         }
00975     }
00976 
00977   msgp += sprintf (msgp, "\n");
00978   _dbus_verbose ("%s",msg);
00979 #endif
00980   for (i = 0; i < n_fds; i++)
00981     {
00982       DBusPollFD *fdp = &fds[i];
00983       WSAEVENT ev;
00984       long lNetworkEvents = FD_OOB;
00985 
00986       ev = WSACreateEvent();
00987 
00988       if (fdp->events & _DBUS_POLLIN)
00989         lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
00990 
00991       if (fdp->events & _DBUS_POLLOUT)
00992         lNetworkEvents |= FD_WRITE | FD_CONNECT;
00993 
00994       WSAEventSelect(fdp->fd, ev, lNetworkEvents);
00995 
00996       pEvents[i] = ev;
00997     }
00998 
00999 
01000   ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
01001 
01002   if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
01003     {
01004       DBUS_SOCKET_SET_ERRNO ();
01005       if (errno != WSAEWOULDBLOCK)
01006         _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
01007       ret = -1;
01008     }
01009   else if (ready == WSA_WAIT_TIMEOUT)
01010     {
01011       _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
01012       ret = 0;
01013     }
01014   else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
01015     {
01016       msgp = msg;
01017       msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
01018 
01019       for (i = 0; i < n_fds; i++)
01020         {
01021           DBusPollFD *fdp = &fds[i];
01022           WSANETWORKEVENTS ne;
01023 
01024           fdp->revents = 0;
01025 
01026           WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
01027 
01028           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01029             fdp->revents |= _DBUS_POLLIN;
01030 
01031           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01032             fdp->revents |= _DBUS_POLLOUT;
01033 
01034           if (ne.lNetworkEvents & (FD_OOB))
01035             fdp->revents |= _DBUS_POLLERR;
01036 
01037           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01038               msgp += sprintf (msgp, "R:%d ", fdp->fd);
01039 
01040           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01041               msgp += sprintf (msgp, "W:%d ", fdp->fd);
01042 
01043           if (ne.lNetworkEvents & (FD_OOB))
01044               msgp += sprintf (msgp, "E:%d ", fdp->fd);
01045 
01046           msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
01047 
01048           if(ne.lNetworkEvents)
01049             ret++;
01050 
01051           WSAEventSelect(fdp->fd, pEvents[i], 0);
01052         }
01053 
01054       msgp += sprintf (msgp, "\n");
01055       _dbus_verbose ("%s",msg);
01056     }
01057   else
01058     {
01059       _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
01060       ret = -1;
01061     }
01062 
01063   for(i = 0; i < n_fds; i++)
01064     {
01065       WSACloseEvent(pEvents[i]);
01066     }
01067 
01068   if (n_fds > DBUS_STACK_WSAEVENTS)
01069     free(pEvents);
01070 
01071   return ret;
01072 
01073 #else   /* USE_CHRIS_IMPL */
01074 
01075 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
01076   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
01077   char *msgp;
01078 
01079   fd_set read_set, write_set, err_set;
01080   int max_fd = 0;
01081   int i;
01082   struct timeval tv;
01083   int ready;
01084 
01085   FD_ZERO (&read_set);
01086   FD_ZERO (&write_set);
01087   FD_ZERO (&err_set);
01088 
01089 
01090 #ifdef DBUS_ENABLE_VERBOSE_MODE
01091   msgp = msg;
01092   msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
01093   for (i = 0; i < n_fds; i++)
01094     {
01095       DBusPollFD *fdp = &fds[i];
01096 
01097 
01098       if (fdp->events & _DBUS_POLLIN)
01099         msgp += sprintf (msgp, "R:%d ", fdp->fd);
01100 
01101       if (fdp->events & _DBUS_POLLOUT)
01102         msgp += sprintf (msgp, "W:%d ", fdp->fd);
01103 
01104       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
01105 
01106       // FIXME: more robust code for long  msg
01107       //        create on heap when msg[] becomes too small
01108       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
01109         {
01110           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
01111         }
01112     }
01113 
01114   msgp += sprintf (msgp, "\n");
01115   _dbus_verbose ("%s",msg);
01116 #endif
01117   for (i = 0; i < n_fds; i++)
01118     {
01119       DBusPollFD *fdp = &fds[i]; 
01120 
01121       if (fdp->events & _DBUS_POLLIN)
01122         FD_SET (fdp->fd, &read_set);
01123 
01124       if (fdp->events & _DBUS_POLLOUT)
01125         FD_SET (fdp->fd, &write_set);
01126 
01127       FD_SET (fdp->fd, &err_set);
01128 
01129       max_fd = MAX (max_fd, fdp->fd);
01130     }
01131 
01132   // Avoid random lockups with send(), for lack of a better solution so far
01133   tv.tv_sec = timeout_milliseconds < 0 ? 1 : timeout_milliseconds / 1000;
01134   tv.tv_usec = timeout_milliseconds < 0 ? 0 : (timeout_milliseconds % 1000) * 1000;
01135 
01136   ready = select (max_fd + 1, &read_set, &write_set, &err_set, &tv);
01137 
01138   if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
01139     {
01140       DBUS_SOCKET_SET_ERRNO ();
01141       if (errno != WSAEWOULDBLOCK)
01142         _dbus_verbose ("select: failed: %s\n", _dbus_strerror_from_errno ());
01143     }
01144   else if (ready == 0)
01145     _dbus_verbose ("select: = 0\n");
01146   else
01147     if (ready > 0)
01148       {
01149 #ifdef DBUS_ENABLE_VERBOSE_MODE
01150         msgp = msg;
01151         msgp += sprintf (msgp, "select: = %d:\n\t", ready);
01152 
01153         for (i = 0; i < n_fds; i++)
01154           {
01155             DBusPollFD *fdp = &fds[i];
01156 
01157             if (FD_ISSET (fdp->fd, &read_set))
01158               msgp += sprintf (msgp, "R:%d ", fdp->fd);
01159 
01160             if (FD_ISSET (fdp->fd, &write_set))
01161               msgp += sprintf (msgp, "W:%d ", fdp->fd);
01162 
01163             if (FD_ISSET (fdp->fd, &err_set))
01164               msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
01165           }
01166         msgp += sprintf (msgp, "\n");
01167         _dbus_verbose ("%s",msg);
01168 #endif
01169 
01170         for (i = 0; i < n_fds; i++)
01171           {
01172             DBusPollFD *fdp = &fds[i];
01173 
01174             fdp->revents = 0;
01175 
01176             if (FD_ISSET (fdp->fd, &read_set))
01177               fdp->revents |= _DBUS_POLLIN;
01178 
01179             if (FD_ISSET (fdp->fd, &write_set))
01180               fdp->revents |= _DBUS_POLLOUT;
01181 
01182             if (FD_ISSET (fdp->fd, &err_set))
01183               fdp->revents |= _DBUS_POLLERR;
01184           }
01185       }
01186   return ready;
01187 #endif  /* USE_CHRIS_IMPL */
01188 }
01189 
01190 
01191 
01192 
01193 /******************************************************************************
01194  
01195 Original CVS version of dbus-sysdeps.c
01196  
01197 ******************************************************************************/
01198 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
01199 /* dbus-sysdeps.c Wrappers around system/libc features (internal to D-Bus implementation)
01200  * 
01201  * Copyright (C) 2002, 2003  Red Hat, Inc.
01202  * Copyright (C) 2003 CodeFactory AB
01203  * Copyright (C) 2005 Novell, Inc.
01204  *
01205  * Licensed under the Academic Free License version 2.1
01206  * 
01207  * This program is free software; you can redistribute it and/or modify
01208  * it under the terms of the GNU General Public License as published by
01209  * the Free Software Foundation; either version 2 of the License, or
01210  * (at your option) any later version.
01211  *
01212  * This program is distributed in the hope that it will be useful,
01213  * but WITHOUT ANY WARRANTY; without even the implied warranty of
01214  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
01215  * GNU General Public License for more details.
01216  * 
01217  * You should have received a copy of the GNU General Public License
01218  * along with this program; if not, write to the Free Software
01219  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
01220  *
01221  */
01222 
01223 
01229 void
01230 _dbus_exit (int code)
01231 {
01232   _exit (code);
01233 }
01234 
01246 int
01247 _dbus_connect_tcp_socket (const char     *host,
01248                           const char     *port,
01249                           const char     *family,
01250                           DBusError      *error)
01251 {
01252   return _dbus_connect_tcp_socket_with_nonce (host, port, family, (const char*)NULL, error);
01253 }
01254 
01255 int
01256 _dbus_connect_tcp_socket_with_nonce (const char     *host,
01257                                      const char     *port,
01258                                      const char     *family,
01259                                      const char     *noncefile,
01260                                      DBusError      *error)
01261 {
01262   int fd = -1, res;
01263   struct addrinfo hints;
01264   struct addrinfo *ai, *tmp;
01265 
01266   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01267 
01268   _dbus_win_startup_winsock ();
01269 
01270   _DBUS_ZERO (hints);
01271 
01272   if (!family)
01273     hints.ai_family = AF_UNSPEC;
01274   else if (!strcmp(family, "ipv4"))
01275     hints.ai_family = AF_INET;
01276   else if (!strcmp(family, "ipv6"))
01277     hints.ai_family = AF_INET6;
01278   else
01279     {
01280       dbus_set_error (error,
01281                       DBUS_ERROR_INVALID_ARGS,
01282                       "Unknown address family %s", family);
01283       return -1;
01284     }
01285   hints.ai_protocol = IPPROTO_TCP;
01286   hints.ai_socktype = SOCK_STREAM;
01287 #ifdef AI_ADDRCONFIG
01288   hints.ai_flags = AI_ADDRCONFIG;
01289 #else
01290   hints.ai_flags = 0;
01291 #endif
01292 
01293   if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
01294     {
01295       dbus_set_error (error,
01296                       _dbus_error_from_errno (res),
01297                       "Failed to lookup host/port: \"%s:%s\": %s (%d)",
01298                       host, port, _dbus_strerror(res), res);
01299       return -1;
01300     }
01301 
01302   tmp = ai;
01303   while (tmp)
01304     {
01305       if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
01306         {
01307           DBUS_SOCKET_SET_ERRNO ();
01308           dbus_set_error (error,
01309                           _dbus_error_from_errno (errno),
01310                           "Failed to open socket: %s",
01311                           _dbus_strerror_from_errno ());
01312           freeaddrinfo(ai);
01313           return -1;
01314         }
01315       _DBUS_ASSERT_ERROR_IS_CLEAR(error);
01316 
01317       if (connect (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
01318         {
01319           DBUS_SOCKET_SET_ERRNO ();
01320           closesocket(fd);
01321           fd = -1;
01322           tmp = tmp->ai_next;
01323           continue;
01324         }
01325 
01326       break;
01327     }
01328   freeaddrinfo(ai);
01329 
01330   if (fd == -1)
01331     {
01332       dbus_set_error (error,
01333                       _dbus_error_from_errno (errno),
01334                       "Failed to connect to socket \"%s:%s\" %s",
01335                       host, port, _dbus_strerror_from_errno ());
01336       return -1;
01337     }
01338 
01339   if (noncefile != NULL)
01340     {
01341       DBusString noncefileStr;
01342       dbus_bool_t ret;
01343       if (!_dbus_string_init (&noncefileStr) ||
01344           !_dbus_string_append(&noncefileStr, noncefile))
01345         {
01346           closesocket (fd);
01347           dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01348           return -1;
01349         }
01350 
01351       ret = _dbus_send_nonce (fd, &noncefileStr, error);
01352 
01353       _dbus_string_free (&noncefileStr);
01354 
01355       if (!ret)
01356         {
01357           closesocket (fd);
01358           return -1;
01359         }
01360     }
01361 
01362   _dbus_fd_set_close_on_exec (fd);
01363 
01364   if (!_dbus_set_fd_nonblocking (fd, error))
01365     {
01366       closesocket (fd);
01367       return -1;
01368     }
01369 
01370   return fd;
01371 }
01372 
01388 int
01389 _dbus_listen_tcp_socket (const char     *host,
01390                          const char     *port,
01391                          const char     *family,
01392                          DBusString     *retport,
01393                          int           **fds_p,
01394                          DBusError      *error)
01395 {
01396   int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
01397   struct addrinfo hints;
01398   struct addrinfo *ai, *tmp;
01399 
01400   // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
01401   //That's required for family == IPv6(which is the default on Vista if family is not given)
01402   //So we use our own union instead of sockaddr_gen:
01403 
01404   typedef union {
01405         struct sockaddr Address;
01406         struct sockaddr_in AddressIn;
01407         struct sockaddr_in6 AddressIn6;
01408   } mysockaddr_gen;
01409 
01410   *fds_p = NULL;
01411   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01412 
01413   _dbus_win_startup_winsock ();
01414 
01415   _DBUS_ZERO (hints);
01416 
01417   if (!family)
01418     hints.ai_family = AF_UNSPEC;
01419   else if (!strcmp(family, "ipv4"))
01420     hints.ai_family = AF_INET;
01421   else if (!strcmp(family, "ipv6"))
01422     hints.ai_family = AF_INET6;
01423   else
01424     {
01425       dbus_set_error (error,
01426                       DBUS_ERROR_INVALID_ARGS,
01427                       "Unknown address family %s", family);
01428       return -1;
01429     }
01430 
01431   hints.ai_protocol = IPPROTO_TCP;
01432   hints.ai_socktype = SOCK_STREAM;
01433 #ifdef AI_ADDRCONFIG
01434   hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
01435 #else
01436   hints.ai_flags = AI_PASSIVE;
01437 #endif
01438 
01439  redo_lookup_with_port:
01440   if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
01441     {
01442       dbus_set_error (error,
01443                       _dbus_error_from_errno (res),
01444                       "Failed to lookup host/port: \"%s:%s\": %s (%d)",
01445                       host ? host : "*", port, _dbus_strerror(res), res);
01446       return -1;
01447     }
01448 
01449   tmp = ai;
01450   while (tmp)
01451     {
01452       int fd = -1, *newlisten_fd;
01453       if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
01454         {
01455           DBUS_SOCKET_SET_ERRNO ();
01456           dbus_set_error (error,
01457                           _dbus_error_from_errno (errno),
01458                          "Failed to open socket: %s",
01459                          _dbus_strerror_from_errno ());
01460           goto failed;
01461         }
01462       _DBUS_ASSERT_ERROR_IS_CLEAR(error);
01463 
01464       if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
01465         {
01466           DBUS_SOCKET_SET_ERRNO ();
01467           dbus_set_error (error, _dbus_error_from_errno (errno),
01468                           "Failed to bind socket \"%s:%s\": %s",
01469                           host ? host : "*", port, _dbus_strerror_from_errno ());
01470           closesocket (fd);
01471           goto failed;
01472     }
01473 
01474       if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
01475         {
01476           DBUS_SOCKET_SET_ERRNO ();
01477           dbus_set_error (error, _dbus_error_from_errno (errno),
01478                           "Failed to listen on socket \"%s:%s\": %s",
01479                           host ? host : "*", port, _dbus_strerror_from_errno ());
01480           closesocket (fd);
01481           goto failed;
01482         }
01483 
01484       newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
01485       if (!newlisten_fd)
01486         {
01487           closesocket (fd);
01488           dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
01489                           "Failed to allocate file handle array");
01490           goto failed;
01491         }
01492       listen_fd = newlisten_fd;
01493       listen_fd[nlisten_fd] = fd;
01494       nlisten_fd++;
01495 
01496       if (!_dbus_string_get_length(retport))
01497         {
01498           /* If the user didn't specify a port, or used 0, then
01499              the kernel chooses a port. After the first address
01500              is bound to, we need to force all remaining addresses
01501              to use the same port */
01502           if (!port || !strcmp(port, "0"))
01503             {
01504               mysockaddr_gen addr;
01505               socklen_t addrlen = sizeof(addr);
01506               char portbuf[10];
01507 
01508               if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
01509                 {
01510                   DBUS_SOCKET_SET_ERRNO ();
01511                   dbus_set_error (error, _dbus_error_from_errno (errno),
01512                                   "Failed to resolve port \"%s:%s\": %s",
01513                                   host ? host : "*", port, _dbus_strerror_from_errno());
01514                   goto failed;
01515                 }
01516               snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
01517               if (!_dbus_string_append(retport, portbuf))
01518                 {
01519                   dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01520                   goto failed;
01521                 }
01522 
01523               /* Release current address list & redo lookup */
01524               port = _dbus_string_get_const_data(retport);
01525               freeaddrinfo(ai);
01526               goto redo_lookup_with_port;
01527             }
01528           else
01529             {
01530               if (!_dbus_string_append(retport, port))
01531                 {
01532                     dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01533                     goto failed;
01534                 }
01535             }
01536         }
01537   
01538       tmp = tmp->ai_next;
01539     }
01540   freeaddrinfo(ai);
01541   ai = NULL;
01542 
01543   if (!nlisten_fd)
01544     {
01545       _dbus_win_set_errno (WSAEADDRINUSE);
01546       dbus_set_error (error, _dbus_error_from_errno (errno),
01547                       "Failed to bind socket \"%s:%s\": %s",
01548                       host ? host : "*", port, _dbus_strerror_from_errno ());
01549       return -1;
01550     }
01551 
01552   sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
01553 
01554   for (i = 0 ; i < nlisten_fd ; i++)
01555     {
01556       _dbus_fd_set_close_on_exec (listen_fd[i]);
01557       if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
01558         {
01559           goto failed;
01560         }
01561     }
01562 
01563   *fds_p = listen_fd;
01564 
01565   return nlisten_fd;
01566 
01567  failed:
01568   if (ai)
01569     freeaddrinfo(ai);
01570   for (i = 0 ; i < nlisten_fd ; i++)
01571     closesocket (listen_fd[i]);
01572   dbus_free(listen_fd);
01573   return -1;
01574 }
01575 
01576 
01584 int
01585 _dbus_accept  (int listen_fd)
01586 {
01587   int client_fd;
01588 
01589  retry:
01590   client_fd = accept (listen_fd, NULL, NULL);
01591 
01592   if (DBUS_SOCKET_IS_INVALID (client_fd))
01593     {
01594       DBUS_SOCKET_SET_ERRNO ();
01595       if (errno == EINTR)
01596         goto retry;
01597     }
01598 
01599   _dbus_verbose ("client fd %d accepted\n", client_fd);
01600   
01601   return client_fd;
01602 }
01603 
01604 
01605 
01606 
01607 dbus_bool_t
01608 _dbus_send_credentials_socket (int            handle,
01609                         DBusError      *error)
01610 {
01611 /* FIXME: for the session bus credentials shouldn't matter (?), but
01612  * for the system bus they are presumably essential. A rough outline
01613  * of a way to implement the credential transfer would be this:
01614  *
01615  * client waits to *read* a byte.
01616  *
01617  * server creates a named pipe with a random name, sends a byte
01618  * contining its length, and its name.
01619  *
01620  * client reads the name, connects to it (using Win32 API).
01621  *
01622  * server waits for connection to the named pipe, then calls
01623  * ImpersonateNamedPipeClient(), notes its now-current credentials,
01624  * calls RevertToSelf(), closes its handles to the named pipe, and
01625  * is done. (Maybe there is some other way to get the SID of a named
01626  * pipe client without having to use impersonation?)
01627  *
01628  * client closes its handles and is done.
01629  * 
01630  * Ralf: Why not sending credentials over the given this connection ?
01631  * Using named pipes makes it impossible to be connected from a unix client.  
01632  *
01633  */
01634   int bytes_written;
01635   DBusString buf; 
01636 
01637   _dbus_string_init_const_len (&buf, "\0", 1);
01638 again:
01639   bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
01640 
01641   if (bytes_written < 0 && errno == EINTR)
01642     goto again;
01643 
01644   if (bytes_written < 0)
01645     {
01646       dbus_set_error (error, _dbus_error_from_errno (errno),
01647                       "Failed to write credentials byte: %s",
01648                      _dbus_strerror_from_errno ());
01649       return FALSE;
01650     }
01651   else if (bytes_written == 0)
01652     {
01653       dbus_set_error (error, DBUS_ERROR_IO_ERROR,
01654                       "wrote zero bytes writing credentials byte");
01655       return FALSE;
01656     }
01657   else
01658     {
01659       _dbus_assert (bytes_written == 1);
01660       _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
01661       return TRUE;
01662     }
01663   return TRUE;
01664 }
01665 
01684 dbus_bool_t
01685 _dbus_read_credentials_socket  (int              handle,
01686                                 DBusCredentials *credentials,
01687                                 DBusError       *error)
01688 {
01689   int bytes_read = 0;
01690   DBusString buf;
01691   
01692   // could fail due too OOM
01693   if (_dbus_string_init(&buf))
01694     {
01695       bytes_read = _dbus_read_socket(handle, &buf, 1 );
01696 
01697       if (bytes_read > 0) 
01698         _dbus_verbose("got one zero byte from server");
01699 
01700       _dbus_string_free(&buf);
01701     }
01702 
01703   _dbus_credentials_add_from_current_process (credentials);
01704   _dbus_verbose("FIXME: get faked credentials from current process");
01705 
01706   return TRUE;
01707 }
01708 
01717 dbus_bool_t
01718 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
01719 {
01720   /* TODO */
01721   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01722   return TRUE;
01723 }
01724 
01725 
01736 dbus_bool_t
01737 _dbus_concat_dir_and_file (DBusString       *dir,
01738                            const DBusString *next_component)
01739 {
01740   dbus_bool_t dir_ends_in_slash;
01741   dbus_bool_t file_starts_with_slash;
01742 
01743   if (_dbus_string_get_length (dir) == 0 ||
01744       _dbus_string_get_length (next_component) == 0)
01745     return TRUE;
01746 
01747   dir_ends_in_slash =
01748     ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
01749      '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
01750 
01751   file_starts_with_slash =
01752     ('/' == _dbus_string_get_byte (next_component, 0) ||
01753      '\\' == _dbus_string_get_byte (next_component, 0));
01754 
01755   if (dir_ends_in_slash && file_starts_with_slash)
01756     {
01757       _dbus_string_shorten (dir, 1);
01758     }
01759   else if (!(dir_ends_in_slash || file_starts_with_slash))
01760     {
01761       if (!_dbus_string_append_byte (dir, '\\'))
01762         return FALSE;
01763     }
01764 
01765   return _dbus_string_copy (next_component, 0, dir,
01766                             _dbus_string_get_length (dir));
01767 }
01768 
01769 /*---------------- DBusCredentials ----------------------------------*/
01770 
01778 dbus_bool_t
01779 _dbus_credentials_add_from_user (DBusCredentials  *credentials,
01780                                      const DBusString *username)
01781 {
01782   return _dbus_credentials_add_windows_sid (credentials,
01783                     _dbus_string_get_const_data(username));
01784 }
01785 
01794 dbus_bool_t
01795 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
01796 {
01797   dbus_bool_t retval = FALSE;
01798   char *sid = NULL;
01799 
01800   if (!_dbus_getsid(&sid))
01801     goto failed;
01802 
01803   if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
01804     goto failed;
01805 
01806   if (!_dbus_credentials_add_windows_sid (credentials,sid))
01807     goto failed;
01808 
01809   retval = TRUE;
01810   goto end;
01811 failed:
01812   retval = FALSE;
01813 end:
01814   if (sid)
01815     LocalFree(sid);
01816 
01817   return retval;
01818 }
01819 
01832 dbus_bool_t
01833 _dbus_append_user_from_current_process (DBusString *str)
01834 {
01835   dbus_bool_t retval = FALSE;
01836   char *sid = NULL;
01837 
01838   if (!_dbus_getsid(&sid))
01839     return FALSE;
01840 
01841   retval = _dbus_string_append (str,sid);
01842 
01843   LocalFree(sid);
01844   return retval;
01845 }
01846 
01851 dbus_pid_t
01852 _dbus_getpid (void)
01853 {
01854   return GetCurrentProcessId ();
01855 }
01856 
01858 #define NANOSECONDS_PER_SECOND       1000000000
01859 
01860 #define MICROSECONDS_PER_SECOND      1000000
01861 
01862 #define MILLISECONDS_PER_SECOND      1000
01863 
01864 #define NANOSECONDS_PER_MILLISECOND  1000000
01865 
01866 #define MICROSECONDS_PER_MILLISECOND 1000
01867 
01872 void
01873 _dbus_sleep_milliseconds (int milliseconds)
01874 {
01875   Sleep (milliseconds);
01876 }
01877 
01878 
01886 void
01887 _dbus_get_real_time (long *tv_sec,
01888                      long *tv_usec)
01889 {
01890   FILETIME ft;
01891   dbus_uint64_t time64;
01892 
01893   GetSystemTimeAsFileTime (&ft);
01894 
01895   memcpy (&time64, &ft, sizeof (time64));
01896 
01897   /* Convert from 100s of nanoseconds since 1601-01-01
01898   * to Unix epoch. Yes, this is Y2038 unsafe.
01899   */
01900   time64 -= DBUS_INT64_CONSTANT (116444736000000000);
01901   time64 /= 10;
01902 
01903   if (tv_sec)
01904     *tv_sec = time64 / 1000000;
01905 
01906   if (tv_usec)
01907     *tv_usec = time64 % 1000000;
01908 }
01909 
01917 void
01918 _dbus_get_monotonic_time (long *tv_sec,
01919                           long *tv_usec)
01920 {
01921   /* no implementation yet, fall back to wall-clock time */
01922   _dbus_get_real_time (tv_sec, tv_usec);
01923 }
01924 
01928 void
01929 _dbus_disable_sigpipe (void)
01930 {
01931 }
01932 
01941 dbus_bool_t
01942 _dbus_create_directory (const DBusString *filename,
01943                         DBusError        *error)
01944 {
01945   const char *filename_c;
01946 
01947   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01948 
01949   filename_c = _dbus_string_get_const_data (filename);
01950 
01951   if (!CreateDirectoryA (filename_c, NULL))
01952     {
01953       if (GetLastError () == ERROR_ALREADY_EXISTS)
01954         return TRUE;
01955 
01956       dbus_set_error (error, DBUS_ERROR_FAILED,
01957                       "Failed to create directory %s: %s\n",
01958                       filename_c, _dbus_strerror_from_errno ());
01959       return FALSE;
01960     }
01961   else
01962     return TRUE;
01963 }
01964 
01965 
01974 dbus_bool_t
01975 _dbus_generate_random_bytes (DBusString *str,
01976                              int         n_bytes)
01977 {
01978   int old_len;
01979   char *p;
01980   HCRYPTPROV hprov;
01981 
01982   old_len = _dbus_string_get_length (str);
01983 
01984   if (!_dbus_string_lengthen (str, n_bytes))
01985     return FALSE;
01986 
01987   p = _dbus_string_get_data_len (str, old_len, n_bytes);
01988 
01989   if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
01990     return FALSE;
01991 
01992   if (!CryptGenRandom (hprov, n_bytes, p))
01993     {
01994       CryptReleaseContext (hprov, 0);
01995       return FALSE;
01996     }
01997 
01998   CryptReleaseContext (hprov, 0);
01999 
02000   return TRUE;
02001 }
02002 
02009 const char*
02010 _dbus_get_tmpdir(void)
02011 {
02012   static const char* tmpdir = NULL;
02013   static char buf[1000];
02014 
02015   if (tmpdir == NULL)
02016     {
02017       char *last_slash;
02018 
02019       if (!GetTempPathA (sizeof (buf), buf))
02020         {
02021           _dbus_warn ("GetTempPath failed\n");
02022           _dbus_abort ();
02023         }
02024 
02025       /* Drop terminating backslash or slash */
02026       last_slash = _mbsrchr (buf, '\\');
02027       if (last_slash > buf && last_slash[1] == '\0')
02028         last_slash[0] = '\0';
02029       last_slash = _mbsrchr (buf, '/');
02030       if (last_slash > buf && last_slash[1] == '\0')
02031         last_slash[0] = '\0';
02032 
02033       tmpdir = buf;
02034     }
02035 
02036   _dbus_assert(tmpdir != NULL);
02037 
02038   return tmpdir;
02039 }
02040 
02041 
02050 dbus_bool_t
02051 _dbus_delete_file (const DBusString *filename,
02052                    DBusError        *error)
02053 {
02054   const char *filename_c;
02055 
02056   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02057 
02058   filename_c = _dbus_string_get_const_data (filename);
02059 
02060   if (DeleteFileA (filename_c) == 0)
02061     {
02062       dbus_set_error (error, DBUS_ERROR_FAILED,
02063                       "Failed to delete file %s: %s\n",
02064                       filename_c, _dbus_strerror_from_errno ());
02065       return FALSE;
02066     }
02067   else
02068     return TRUE;
02069 }
02070 
02071 /*
02072  * replaces the term DBUS_PREFIX in configure_time_path by the
02073  * current dbus installation directory. On unix this function is a noop
02074  *
02075  * @param configure_time_path
02076  * @return real path
02077  */
02078 const char *
02079 _dbus_replace_install_prefix (const char *configure_time_path)
02080 {
02081 #ifndef DBUS_PREFIX
02082   return configure_time_path;
02083 #else
02084   static char retval[1000];
02085   static char runtime_prefix[1000];
02086   int len = 1000;
02087   int i;
02088 
02089   if (!configure_time_path)
02090     return NULL;
02091 
02092   if ((!_dbus_get_install_root(runtime_prefix, len) ||
02093        strncmp (configure_time_path, DBUS_PREFIX "/",
02094                 strlen (DBUS_PREFIX) + 1))) {
02095      strcat (retval, configure_time_path);
02096      return retval;
02097   }
02098 
02099   strcpy (retval, runtime_prefix);
02100   strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
02101 
02102   /* Somehow, in some situations, backslashes get collapsed in the string.
02103    * Since windows C library accepts both forward and backslashes as
02104    * path separators, convert all backslashes to forward slashes.
02105    */
02106 
02107   for(i = 0; retval[i] != '\0'; i++) {
02108     if(retval[i] == '\\')
02109       retval[i] = '/';
02110   }
02111   return retval;
02112 #endif
02113 }
02114 
02115 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
02116 
02117 #if defined(_MSC_VER) || defined(DBUS_WINCE)
02118 # ifdef BACKTRACES
02119 #  undef BACKTRACES
02120 # endif
02121 #else
02122 # define BACKTRACES
02123 #endif
02124 
02125 #ifdef BACKTRACES
02126 /*
02127  * Backtrace Generator
02128  *
02129  * Copyright 2004 Eric Poech
02130  * Copyright 2004 Robert Shearman
02131  *
02132  * This library is free software; you can redistribute it and/or
02133  * modify it under the terms of the GNU Lesser General Public
02134  * License as published by the Free Software Foundation; either
02135  * version 2.1 of the License, or (at your option) any later version.
02136  *
02137  * This library is distributed in the hope that it will be useful,
02138  * but WITHOUT ANY WARRANTY; without even the implied warranty of
02139  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
02140  * Lesser General Public License for more details.
02141  *
02142  * You should have received a copy of the GNU Lesser General Public
02143  * License along with this library; if not, write to the Free Software
02144  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
02145  */
02146 
02147 #include <winver.h>
02148 #include <imagehlp.h>
02149 #include <stdio.h>
02150 
02151 #define DPRINTF _dbus_warn
02152 
02153 #ifdef _MSC_VER
02154 #define BOOL int
02155 
02156 #define __i386__
02157 #endif
02158 
02159 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
02160 
02161 //MAKE_FUNCPTR(StackWalk);
02162 //MAKE_FUNCPTR(SymGetModuleBase);
02163 //MAKE_FUNCPTR(SymFunctionTableAccess);
02164 //MAKE_FUNCPTR(SymInitialize);
02165 //MAKE_FUNCPTR(SymGetSymFromAddr);
02166 //MAKE_FUNCPTR(SymGetModuleInfo);
02167 static BOOL (WINAPI *pStackWalk)(
02168   DWORD MachineType,
02169   HANDLE hProcess,
02170   HANDLE hThread,
02171   LPSTACKFRAME StackFrame,
02172   PVOID ContextRecord,
02173   PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02174   PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02175   PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02176   PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02177 );
02178 #ifdef _WIN64
02179 static DWORD64 (WINAPI *pSymGetModuleBase)(
02180   HANDLE hProcess,
02181   DWORD64 dwAddr
02182 );
02183 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02184   HANDLE hProcess,
02185   DWORD64 AddrBase
02186 );
02187 #else
02188 static DWORD (WINAPI *pSymGetModuleBase)(
02189   HANDLE hProcess,
02190   DWORD dwAddr
02191 );
02192 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02193   HANDLE hProcess,
02194   DWORD AddrBase
02195 );
02196 #endif
02197 static BOOL  (WINAPI *pSymInitialize)(
02198   HANDLE hProcess,
02199   PSTR UserSearchPath,
02200   BOOL fInvadeProcess
02201 );
02202 static BOOL  (WINAPI *pSymGetSymFromAddr)(
02203   HANDLE hProcess,
02204   DWORD Address,
02205   PDWORD Displacement,
02206   PIMAGEHLP_SYMBOL Symbol
02207 );
02208 static BOOL  (WINAPI *pSymGetModuleInfo)(
02209   HANDLE hProcess,
02210   DWORD dwAddr,
02211   PIMAGEHLP_MODULE ModuleInfo
02212 );
02213 static DWORD  (WINAPI *pSymSetOptions)(
02214   DWORD SymOptions
02215 );
02216 
02217 
02218 static BOOL init_backtrace()
02219 {
02220     HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
02221 /*
02222     #define GETFUNC(x) \
02223     p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
02224     if (!p##x) \
02225     { \
02226         return FALSE; \
02227     }
02228     */
02229 
02230 
02231 //    GETFUNC(StackWalk);
02232 //    GETFUNC(SymGetModuleBase);
02233 //    GETFUNC(SymFunctionTableAccess);
02234 //    GETFUNC(SymInitialize);
02235 //    GETFUNC(SymGetSymFromAddr);
02236 //    GETFUNC(SymGetModuleInfo);
02237 
02238 #define FUNC(x) #x
02239 
02240       pStackWalk = (BOOL  (WINAPI *)(
02241 DWORD MachineType,
02242 HANDLE hProcess,
02243 HANDLE hThread,
02244 LPSTACKFRAME StackFrame,
02245 PVOID ContextRecord,
02246 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02247 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02248 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02249 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02250 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
02251 #ifdef _WIN64
02252     pSymGetModuleBase=(DWORD64  (WINAPI *)(
02253   HANDLE hProcess,
02254   DWORD64 dwAddr
02255 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02256     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02257   HANDLE hProcess,
02258   DWORD64 AddrBase
02259 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02260 #else
02261     pSymGetModuleBase=(DWORD  (WINAPI *)(
02262   HANDLE hProcess,
02263   DWORD dwAddr
02264 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02265     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02266   HANDLE hProcess,
02267   DWORD AddrBase
02268 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02269 #endif
02270     pSymInitialize = (BOOL  (WINAPI *)(
02271   HANDLE hProcess,
02272   PSTR UserSearchPath,
02273   BOOL fInvadeProcess
02274 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
02275     pSymGetSymFromAddr = (BOOL  (WINAPI *)(
02276   HANDLE hProcess,
02277   DWORD Address,
02278   PDWORD Displacement,
02279   PIMAGEHLP_SYMBOL Symbol
02280 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
02281     pSymGetModuleInfo = (BOOL  (WINAPI *)(
02282   HANDLE hProcess,
02283   DWORD dwAddr,
02284   PIMAGEHLP_MODULE ModuleInfo
02285 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
02286 pSymSetOptions = (DWORD  (WINAPI *)(
02287 DWORD SymOptions
02288 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
02289 
02290 
02291     pSymSetOptions(SYMOPT_UNDNAME);
02292 
02293     pSymInitialize(GetCurrentProcess(), NULL, TRUE);
02294 
02295     return TRUE;
02296 }
02297 
02298 static void dump_backtrace_for_thread(HANDLE hThread)
02299 {
02300     STACKFRAME sf;
02301     CONTEXT context;
02302     DWORD dwImageType;
02303 
02304     if (!pStackWalk)
02305         if (!init_backtrace())
02306             return;
02307 
02308     /* can't use this function for current thread as GetThreadContext
02309      * doesn't support getting context from current thread */
02310     if (hThread == GetCurrentThread())
02311         return;
02312 
02313     DPRINTF("Backtrace:\n");
02314 
02315     _DBUS_ZERO(context);
02316     context.ContextFlags = CONTEXT_FULL;
02317 
02318     SuspendThread(hThread);
02319 
02320     if (!GetThreadContext(hThread, &context))
02321     {
02322         DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
02323         ResumeThread(hThread);
02324         return;
02325     }
02326 
02327     _DBUS_ZERO(sf);
02328 
02329 #ifdef __i386__
02330     sf.AddrFrame.Offset = context.Ebp;
02331     sf.AddrFrame.Mode = AddrModeFlat;
02332     sf.AddrPC.Offset = context.Eip;
02333     sf.AddrPC.Mode = AddrModeFlat;
02334     dwImageType = IMAGE_FILE_MACHINE_I386;
02335 #elif _M_X64
02336   dwImageType                = IMAGE_FILE_MACHINE_AMD64;
02337   sf.AddrPC.Offset    = context.Rip;
02338   sf.AddrPC.Mode      = AddrModeFlat;
02339   sf.AddrFrame.Offset = context.Rsp;
02340   sf.AddrFrame.Mode   = AddrModeFlat;
02341   sf.AddrStack.Offset = context.Rsp;
02342   sf.AddrStack.Mode   = AddrModeFlat;
02343 #elif _M_IA64
02344   dwImageType                 = IMAGE_FILE_MACHINE_IA64;
02345   sf.AddrPC.Offset    = context.StIIP;
02346   sf.AddrPC.Mode      = AddrModeFlat;
02347   sf.AddrFrame.Offset = context.IntSp;
02348   sf.AddrFrame.Mode   = AddrModeFlat;
02349   sf.AddrBStore.Offset= context.RsBSP;
02350   sf.AddrBStore.Mode  = AddrModeFlat;
02351   sf.AddrStack.Offset = context.IntSp;
02352   sf.AddrStack.Mode   = AddrModeFlat;
02353 #else
02354 # error You need to fill in the STACKFRAME structure for your architecture
02355 #endif
02356 
02357     while (pStackWalk(dwImageType, GetCurrentProcess(),
02358                      hThread, &sf, &context, NULL, pSymFunctionTableAccess,
02359                      pSymGetModuleBase, NULL))
02360     {
02361         BYTE buffer[256];
02362         IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
02363         DWORD dwDisplacement;
02364 
02365         pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
02366         pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
02367 
02368         if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
02369                                 &dwDisplacement, pSymbol))
02370         {
02371             IMAGEHLP_MODULE ModuleInfo;
02372             ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
02373 
02374             if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
02375                                    &ModuleInfo))
02376                 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
02377             else
02378                 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
02379                     sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
02380         }
02381         else if (dwDisplacement)
02382             DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
02383         else
02384             DPRINTF("4\t%s\n", pSymbol->Name);
02385     }
02386 
02387     ResumeThread(hThread);
02388 }
02389 
02390 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
02391 {
02392     dump_backtrace_for_thread((HANDLE)lpParameter);
02393     return 0;
02394 }
02395 
02396 /* cannot get valid context from current thread, so we have to execute
02397  * backtrace from another thread */
02398 static void dump_backtrace()
02399 {
02400     HANDLE hCurrentThread;
02401     HANDLE hThread;
02402     DWORD dwThreadId;
02403     DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
02404         GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
02405     hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
02406         0, &dwThreadId);
02407     WaitForSingleObject(hThread, INFINITE);
02408     CloseHandle(hThread);
02409     CloseHandle(hCurrentThread);
02410 }
02411 #endif
02412 #endif /* asserts or tests enabled */
02413 
02414 #ifdef BACKTRACES
02415 void _dbus_print_backtrace(void)
02416 {
02417   init_backtrace();
02418   dump_backtrace();
02419 }
02420 #else
02421 void _dbus_print_backtrace(void)
02422 {
02423   _dbus_verbose ("  D-Bus not compiled with backtrace support\n");
02424 }
02425 #endif
02426 
02427 static dbus_uint32_t fromAscii(char ascii)
02428 {
02429     if(ascii >= '0' && ascii <= '9')
02430         return ascii - '0';
02431     if(ascii >= 'A' && ascii <= 'F')
02432         return ascii - 'A' + 10;
02433     if(ascii >= 'a' && ascii <= 'f')
02434         return ascii - 'a' + 10;
02435     return 0;    
02436 }
02437 
02438 dbus_bool_t _dbus_read_local_machine_uuid   (DBusGUID         *machine_id,
02439                                              dbus_bool_t       create_if_not_found,
02440                                              DBusError        *error)
02441 {
02442 #ifdef DBUS_WINCE
02443         return TRUE;
02444   // TODO
02445 #else
02446     HW_PROFILE_INFOA info;
02447     char *lpc = &info.szHwProfileGuid[0];
02448     dbus_uint32_t u;
02449 
02450     //  the hw-profile guid lives long enough
02451     if(!GetCurrentHwProfileA(&info))
02452       {
02453         dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
02454         return FALSE;  
02455       }
02456 
02457     // Form: {12340001-4980-1920-6788-123456789012}
02458     lpc++;
02459     // 12340001
02460     u = ((fromAscii(lpc[0]) <<  0) |
02461          (fromAscii(lpc[1]) <<  4) |
02462          (fromAscii(lpc[2]) <<  8) |
02463          (fromAscii(lpc[3]) << 12) |
02464          (fromAscii(lpc[4]) << 16) |
02465          (fromAscii(lpc[5]) << 20) |
02466          (fromAscii(lpc[6]) << 24) |
02467          (fromAscii(lpc[7]) << 28));
02468     machine_id->as_uint32s[0] = u;
02469 
02470     lpc += 9;
02471     // 4980-1920
02472     u = ((fromAscii(lpc[0]) <<  0) |
02473          (fromAscii(lpc[1]) <<  4) |
02474          (fromAscii(lpc[2]) <<  8) |
02475          (fromAscii(lpc[3]) << 12) |
02476          (fromAscii(lpc[5]) << 16) |
02477          (fromAscii(lpc[6]) << 20) |
02478          (fromAscii(lpc[7]) << 24) |
02479          (fromAscii(lpc[8]) << 28));
02480     machine_id->as_uint32s[1] = u;
02481     
02482     lpc += 10;
02483     // 6788-1234
02484     u = ((fromAscii(lpc[0]) <<  0) |
02485          (fromAscii(lpc[1]) <<  4) |
02486          (fromAscii(lpc[2]) <<  8) |
02487          (fromAscii(lpc[3]) << 12) |
02488          (fromAscii(lpc[5]) << 16) |
02489          (fromAscii(lpc[6]) << 20) |
02490          (fromAscii(lpc[7]) << 24) |
02491          (fromAscii(lpc[8]) << 28));
02492     machine_id->as_uint32s[2] = u;
02493     
02494     lpc += 9;
02495     // 56789012
02496     u = ((fromAscii(lpc[0]) <<  0) |
02497          (fromAscii(lpc[1]) <<  4) |
02498          (fromAscii(lpc[2]) <<  8) |
02499          (fromAscii(lpc[3]) << 12) |
02500          (fromAscii(lpc[4]) << 16) |
02501          (fromAscii(lpc[5]) << 20) |
02502          (fromAscii(lpc[6]) << 24) |
02503          (fromAscii(lpc[7]) << 28));
02504     machine_id->as_uint32s[3] = u;
02505 #endif
02506     return TRUE;
02507 }
02508 
02509 static
02510 HANDLE _dbus_global_lock (const char *mutexname)
02511 {
02512   HANDLE mutex;
02513   DWORD gotMutex;
02514 
02515   mutex = CreateMutexA( NULL, FALSE, mutexname );
02516   if( !mutex )
02517     {
02518       return FALSE;
02519     }
02520 
02521    gotMutex = WaitForSingleObject( mutex, INFINITE );
02522    switch( gotMutex )
02523      {
02524        case WAIT_ABANDONED:
02525                ReleaseMutex (mutex);
02526                CloseHandle (mutex);
02527                return 0;
02528        case WAIT_FAILED:
02529        case WAIT_TIMEOUT:
02530                return 0;
02531      }
02532 
02533    return mutex;
02534 }
02535 
02536 static
02537 void _dbus_global_unlock (HANDLE mutex)
02538 {
02539   ReleaseMutex (mutex);
02540   CloseHandle (mutex); 
02541 }
02542 
02543 // for proper cleanup in dbus-daemon
02544 static HANDLE hDBusDaemonMutex = NULL;
02545 static HANDLE hDBusSharedMem = NULL;
02546 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02547 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
02548 // sync _dbus_get_autolaunch_address
02549 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
02550 // mutex to determine if dbus-daemon is already started (per user)
02551 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
02552 // named shm for dbus adress info (per user)
02553 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
02554 
02555 static dbus_bool_t
02556 _dbus_get_install_root_as_hash(DBusString *out)
02557 {
02558     DBusString install_path;
02559 
02560     char path[MAX_PATH*2];
02561     int path_size = sizeof(path);
02562 
02563     if (!_dbus_get_install_root(path,path_size))
02564         return FALSE;
02565 
02566     _dbus_string_init(&install_path);
02567     _dbus_string_append(&install_path,path);
02568 
02569     _dbus_string_init(out);
02570     _dbus_string_tolower_ascii(&install_path,0,_dbus_string_get_length(&install_path));
02571 
02572     if (!_dbus_sha_compute (&install_path, out))
02573         return FALSE;
02574 
02575     return TRUE;
02576 }
02577 
02578 static dbus_bool_t
02579 _dbus_get_address_string (DBusString *out, const char *basestring, const char *scope)
02580 {
02581   _dbus_string_init(out);
02582   _dbus_string_append(out,basestring);
02583 
02584   if (!scope)
02585     {
02586       return TRUE;
02587     }
02588   else if (strcmp(scope,"*install-path") == 0
02589         // for 1.3 compatibility
02590         || strcmp(scope,"install-path") == 0)
02591     {
02592       DBusString temp;
02593       if (!_dbus_get_install_root_as_hash(&temp))
02594         {
02595           _dbus_string_free(out);
02596            return FALSE;
02597         }
02598       _dbus_string_append(out,"-");
02599       _dbus_string_append(out,_dbus_string_get_const_data(&temp));
02600       _dbus_string_free(&temp);
02601     }
02602   else if (strcmp(scope,"*user") == 0)
02603     {
02604       _dbus_string_append(out,"-");
02605       if (!_dbus_append_user_from_current_process(out))
02606         {
02607            _dbus_string_free(out);
02608            return FALSE;
02609         }
02610     }
02611   else if (strlen(scope) > 0)
02612     {
02613       _dbus_string_append(out,"-");
02614       _dbus_string_append(out,scope);
02615       return TRUE;
02616     }
02617   return TRUE;
02618 }
02619 
02620 static dbus_bool_t
02621 _dbus_get_shm_name (DBusString *out,const char *scope)
02622 {
02623   return _dbus_get_address_string (out,cDBusDaemonAddressInfo,scope);
02624 }
02625 
02626 static dbus_bool_t
02627 _dbus_get_mutex_name (DBusString *out,const char *scope)
02628 {
02629   return _dbus_get_address_string (out,cDBusDaemonMutex,scope);
02630 }
02631 
02632 dbus_bool_t
02633 _dbus_daemon_is_session_bus_address_published (const char *scope)
02634 {
02635   HANDLE lock;
02636   DBusString mutex_name;
02637 
02638   if (!_dbus_get_mutex_name(&mutex_name,scope))
02639     {
02640       _dbus_string_free( &mutex_name );
02641       return FALSE;
02642     }
02643 
02644   if (hDBusDaemonMutex)
02645       return TRUE;
02646 
02647   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02648   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02649 
02650   // we use CreateMutex instead of OpenMutex because of possible race conditions,
02651   // see http://msdn.microsoft.com/en-us/library/ms684315%28VS.85%29.aspx
02652   hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02653 
02654   /* The client uses mutex ownership to detect a running server, so the server should do so too.
02655      Fortunally the client deletes the mutex in the lock protected area, so checking presence 
02656      will work too.  */
02657 
02658   _dbus_global_unlock( lock );
02659 
02660   _dbus_string_free( &mutex_name );
02661 
02662   if (hDBusDaemonMutex  == NULL)
02663       return FALSE;
02664   if (GetLastError() == ERROR_ALREADY_EXISTS)
02665     {
02666       CloseHandle(hDBusDaemonMutex);
02667       hDBusDaemonMutex = NULL;
02668       return TRUE;
02669     }
02670   // mutex wasn't created before, so return false.
02671   // We leave the mutex name allocated for later reusage
02672   // in _dbus_daemon_publish_session_bus_address.
02673   return FALSE;
02674 }
02675 
02676 dbus_bool_t
02677 _dbus_daemon_publish_session_bus_address (const char* address, const char *scope)
02678 {
02679   HANDLE lock;
02680   char *shared_addr = NULL;
02681   DBusString shm_name;
02682   DBusString mutex_name;
02683 
02684   _dbus_assert (address);
02685 
02686   if (!_dbus_get_mutex_name(&mutex_name,scope))
02687     {
02688       _dbus_string_free( &mutex_name );
02689       return FALSE;
02690     }
02691 
02692   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02693   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02694 
02695   if (!hDBusDaemonMutex)
02696     {
02697       hDBusDaemonMutex = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02698     }
02699   _dbus_string_free( &mutex_name );
02700 
02701   // acquire the mutex
02702   if (WaitForSingleObject( hDBusDaemonMutex, 10 ) != WAIT_OBJECT_0)
02703     {
02704       _dbus_global_unlock( lock );
02705       CloseHandle( hDBusDaemonMutex );
02706       return FALSE;
02707     }
02708 
02709   if (!_dbus_get_shm_name(&shm_name,scope))
02710     {
02711       _dbus_string_free( &shm_name );
02712       _dbus_global_unlock( lock );
02713       return FALSE;
02714     }
02715 
02716   // create shm
02717   hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
02718                                        0, strlen( address ) + 1, _dbus_string_get_const_data(&shm_name) );
02719   _dbus_assert( hDBusSharedMem );
02720 
02721   shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
02722 
02723   _dbus_assert (shared_addr);
02724 
02725   strcpy( shared_addr, address);
02726 
02727   // cleanup
02728   UnmapViewOfFile( shared_addr );
02729 
02730   _dbus_global_unlock( lock );
02731   _dbus_verbose( "published session bus address at %s\n",_dbus_string_get_const_data (&shm_name) );
02732 
02733   _dbus_string_free( &shm_name );
02734   return TRUE;
02735 }
02736 
02737 void
02738 _dbus_daemon_unpublish_session_bus_address (void)
02739 {
02740   HANDLE lock;
02741 
02742   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02743   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02744 
02745   CloseHandle( hDBusSharedMem );
02746 
02747   hDBusSharedMem = NULL;
02748 
02749   ReleaseMutex( hDBusDaemonMutex );
02750 
02751   CloseHandle( hDBusDaemonMutex );
02752 
02753   hDBusDaemonMutex = NULL;
02754 
02755   _dbus_global_unlock( lock );
02756 }
02757 
02758 static dbus_bool_t
02759 _dbus_get_autolaunch_shm (DBusString *address, DBusString *shm_name)
02760 {
02761   HANDLE sharedMem;
02762   char *shared_addr;
02763   int i;
02764 
02765   // read shm
02766   for(i=0;i<20;++i) {
02767       // we know that dbus-daemon is available, so we wait until shm is available
02768       sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, _dbus_string_get_const_data(shm_name));
02769       if( sharedMem == 0 )
02770           Sleep( 100 );
02771       if ( sharedMem != 0)
02772           break;
02773   }
02774 
02775   if( sharedMem == 0 )
02776       return FALSE;
02777 
02778   shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
02779 
02780   if( !shared_addr )
02781       return FALSE;
02782 
02783   _dbus_string_init( address );
02784 
02785   _dbus_string_append( address, shared_addr );
02786 
02787   // cleanup
02788   UnmapViewOfFile( shared_addr );
02789 
02790   CloseHandle( sharedMem );
02791 
02792   return TRUE;
02793 }
02794 
02795 static dbus_bool_t
02796 _dbus_daemon_already_runs (DBusString *address, DBusString *shm_name, const char *scope)
02797 {
02798   HANDLE lock;
02799   HANDLE daemon;
02800   DBusString mutex_name;
02801   dbus_bool_t bRet = TRUE;
02802 
02803   if (!_dbus_get_mutex_name(&mutex_name,scope))
02804     {
02805       _dbus_string_free( &mutex_name );
02806       return FALSE;
02807     }
02808 
02809   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02810   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02811 
02812   // do checks
02813   daemon = CreateMutexA( NULL, FALSE, _dbus_string_get_const_data(&mutex_name) );
02814   if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
02815     {
02816       ReleaseMutex (daemon);
02817       CloseHandle (daemon);
02818 
02819       _dbus_global_unlock( lock );
02820       _dbus_string_free( &mutex_name );
02821       return FALSE;
02822     }
02823 
02824   // read shm
02825   bRet = _dbus_get_autolaunch_shm( address, shm_name );
02826 
02827   // cleanup
02828   CloseHandle ( daemon );
02829 
02830   _dbus_global_unlock( lock );
02831   _dbus_string_free( &mutex_name );
02832 
02833   return bRet;
02834 }
02835 
02836 dbus_bool_t
02837 _dbus_get_autolaunch_address (const char *scope, DBusString *address,
02838                               DBusError *error)
02839 {
02840   HANDLE mutex;
02841   STARTUPINFOA si;
02842   PROCESS_INFORMATION pi;
02843   dbus_bool_t retval = FALSE;
02844   LPSTR lpFile;
02845   char dbus_exe_path[MAX_PATH];
02846   char dbus_args[MAX_PATH * 2];
02847   const char * daemon_name = DBUS_DAEMON_NAME ".exe";
02848   DBusString shm_name;
02849 
02850   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02851 
02852   if (!_dbus_get_shm_name(&shm_name,scope))
02853     {
02854         dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not determine shm name");
02855         return FALSE;
02856     }
02857 
02858   mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
02859 
02860   if (_dbus_daemon_already_runs(address,&shm_name,scope))
02861     {
02862         _dbus_verbose( "found running dbus daemon at %s\n",
02863                        _dbus_string_get_const_data (&shm_name) );
02864         retval = TRUE;
02865         goto out;
02866     }
02867 
02868   if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
02869     {
02870       // Look in directory containing dbus shared library
02871       HMODULE hmod;
02872       char dbus_module_path[MAX_PATH];
02873       DWORD rc;
02874 
02875       _dbus_verbose( "did not found dbus daemon executable on default search path, "
02876             "trying path where dbus shared library is located");
02877 
02878       hmod = _dbus_win_get_dll_hmodule();
02879       rc = GetModuleFileNameA(hmod, dbus_module_path, sizeof(dbus_module_path));
02880       if (rc <= 0)
02881         {
02882           dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not retrieve dbus shared library file name");
02883           retval = FALSE;
02884           goto out;
02885         }
02886       else
02887         {
02888           char *ext_idx = strrchr(dbus_module_path, '\\');
02889           if (ext_idx)
02890           *ext_idx = '\0';
02891           if (!SearchPathA(dbus_module_path, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
02892             {
02893               dbus_set_error_const (error, DBUS_ERROR_FAILED, "could not find dbus-daemon executable");
02894               retval = FALSE;
02895               printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
02896               printf ("or start the daemon manually\n\n");
02897               goto out;
02898             }
02899           _dbus_verbose( "found dbus daemon executable at %s",dbus_module_path);
02900         }
02901     }
02902 
02903 
02904   // Create process
02905   ZeroMemory( &si, sizeof(si) );
02906   si.cb = sizeof(si);
02907   ZeroMemory( &pi, sizeof(pi) );
02908 
02909   _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path,  " --session");
02910 
02911 //  argv[i] = "--config-file=bus\\session.conf";
02912 //  printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
02913   if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
02914     {
02915       CloseHandle (pi.hThread);
02916       CloseHandle (pi.hProcess);
02917       retval = _dbus_get_autolaunch_shm( address, &shm_name );
02918       if (retval == FALSE)
02919         dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to get autolaunch address from launched dbus-daemon");
02920     }
02921   else
02922     {
02923       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
02924       retval = FALSE;
02925     }
02926 
02927 out:
02928   if (retval)
02929     _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02930   else
02931     _DBUS_ASSERT_ERROR_IS_SET (error);
02932   
02933   _dbus_global_unlock (mutex);
02934 
02935   return retval;
02936  }
02937 
02938 
02945 dbus_bool_t
02946 _dbus_make_file_world_readable(const DBusString *filename,
02947                                DBusError *error)
02948 {
02949   // TODO
02950   return TRUE;
02951 }
02952 
02959 static const char *
02960 _dbus_windows_get_datadir (void)
02961 {
02962         return _dbus_replace_install_prefix(DBUS_DATADIR);
02963 }
02964 
02965 #undef DBUS_DATADIR
02966 #define DBUS_DATADIR _dbus_windows_get_datadir ()
02967 
02968 
02969 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
02970 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
02971 
02988 dbus_bool_t 
02989 _dbus_get_standard_session_servicedirs (DBusList **dirs)
02990 {
02991   const char *common_progs;
02992   DBusString servicedir_path;
02993 
02994   if (!_dbus_string_init (&servicedir_path))
02995     return FALSE;
02996 
02997 #ifdef DBUS_WINCE
02998   {
02999     /* On Windows CE, we adjust datadir dynamically to installation location.  */
03000     const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
03001 
03002     if (data_dir != NULL)
03003       {
03004         if (!_dbus_string_append (&servicedir_path, data_dir))
03005           goto oom;
03006         
03007         if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03008           goto oom;
03009       }
03010   }
03011 #else
03012 /*
03013  the code for accessing services requires absolute base pathes
03014  in case DBUS_DATADIR is relative make it absolute
03015 */
03016 #ifdef DBUS_WIN
03017   {
03018     DBusString p;
03019 
03020     _dbus_string_init_const (&p, DBUS_DATADIR);
03021 
03022     if (!_dbus_path_is_absolute (&p))
03023       {
03024         char install_root[1000];
03025         if (_dbus_get_install_root (install_root, sizeof(install_root)))
03026           if (!_dbus_string_append (&servicedir_path, install_root))
03027             goto oom;
03028       }
03029   }
03030 #endif
03031   if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
03032     goto oom;
03033 
03034   if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03035     goto oom;
03036 #endif
03037 
03038   common_progs = _dbus_getenv ("CommonProgramFiles");
03039 
03040   if (common_progs != NULL)
03041     {
03042       if (!_dbus_string_append (&servicedir_path, common_progs))
03043         goto oom;
03044 
03045       if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
03046         goto oom;
03047     }
03048 
03049   if (!_dbus_split_paths_and_append (&servicedir_path, 
03050                                DBUS_STANDARD_SESSION_SERVICEDIR, 
03051                                dirs))
03052     goto oom;
03053 
03054   _dbus_string_free (&servicedir_path);  
03055   return TRUE;
03056 
03057  oom:
03058   _dbus_string_free (&servicedir_path);
03059   return FALSE;
03060 }
03061 
03080 dbus_bool_t
03081 _dbus_get_standard_system_servicedirs (DBusList **dirs)
03082 {
03083   *dirs = NULL;
03084   return TRUE;
03085 }
03086 
03087 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
03088 
03096 dbus_int32_t
03097 _dbus_atomic_inc (DBusAtomic *atomic)
03098 {
03099   // +/- 1 is needed here!
03100   // no volatile argument with mingw
03101   return InterlockedIncrement (&atomic->value) - 1;
03102 }
03103 
03111 dbus_int32_t
03112 _dbus_atomic_dec (DBusAtomic *atomic)
03113 {
03114   // +/- 1 is needed here!
03115   // no volatile argument with mingw
03116   return InterlockedDecrement (&atomic->value) + 1;
03117 }
03118 
03126 dbus_int32_t
03127 _dbus_atomic_get (DBusAtomic *atomic)
03128 {
03129   /* this is what GLib does, hopefully it's right... */
03130   MemoryBarrier ();
03131   return atomic->value;
03132 }
03133 
03141 void
03142 _dbus_flush_caches (void)
03143 {
03144 }
03145 
03152 dbus_bool_t
03153 _dbus_get_is_errno_eagain_or_ewouldblock (void)
03154 {
03155   return errno == WSAEWOULDBLOCK;
03156 }
03157 
03165 dbus_bool_t
03166 _dbus_get_install_root(char *prefix, int len)
03167 {
03168     //To find the prefix, we cut the filename and also \bin\ if present
03169     DWORD pathLength;
03170     char *lastSlash;
03171     SetLastError( 0 );
03172     pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
03173     if ( pathLength == 0 || GetLastError() != 0 ) {
03174         *prefix = '\0';
03175         return FALSE;
03176     }
03177     lastSlash = _mbsrchr(prefix, '\\');
03178     if (lastSlash == NULL) {
03179         *prefix = '\0';
03180         return FALSE;
03181     }
03182     //cut off binary name
03183     lastSlash[1] = 0;
03184 
03185     //cut possible "\\bin"
03186 
03187     //this fails if we are in a double-byte system codepage and the
03188     //folder's name happens to end with the *bytes*
03189     //"\\bin"... (I.e. the second byte of some Han character and then
03190     //the Latin "bin", but that is not likely I think...
03191     if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
03192         lastSlash[-3] = 0;
03193     else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
03194         lastSlash[-9] = 0;
03195     else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
03196         lastSlash[-11] = 0;
03197 
03198     return TRUE;
03199 }
03200 
03214 dbus_bool_t 
03215 _dbus_get_config_file_name(DBusString *config_file, char *s)
03216 {
03217   char path[MAX_PATH*2];
03218   int path_size = sizeof(path);
03219 
03220   if (!_dbus_get_install_root(path,path_size))
03221     return FALSE;
03222 
03223   if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
03224     return FALSE;
03225   strcat(path,"etc\\");
03226   strcat(path,s);
03227   if (_dbus_file_exists(path)) 
03228     {
03229       // find path from executable 
03230       if (!_dbus_string_append (config_file, path))
03231         return FALSE;
03232     }
03233   else 
03234     {
03235       if (!_dbus_get_install_root(path,path_size))
03236         return FALSE;
03237       if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
03238         return FALSE;
03239       strcat(path,"etc\\dbus-1\\");
03240       strcat(path,s);
03241   
03242       if (_dbus_file_exists(path)) 
03243         {
03244           if (!_dbus_string_append (config_file, path))
03245             return FALSE;
03246         }
03247       else
03248         {
03249           if (!_dbus_get_install_root(path,path_size))
03250             return FALSE;
03251           if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
03252             return FALSE;
03253           strcat(path,"bus\\");
03254           strcat(path,s);
03255           
03256           if (_dbus_file_exists(path)) 
03257             {
03258               if (!_dbus_string_append (config_file, path))
03259                 return FALSE;
03260             }
03261         }
03262     }
03263   return TRUE;
03264 }    
03265 
03274 dbus_bool_t
03275 _dbus_append_system_config_file (DBusString *str)
03276 {
03277   return _dbus_get_config_file_name(str, "system.conf");
03278 }
03279 
03286 dbus_bool_t
03287 _dbus_append_session_config_file (DBusString *str)
03288 {
03289   return _dbus_get_config_file_name(str, "session.conf");
03290 }
03291 
03292 /* See comment in dbus-sysdeps-unix.c */
03293 dbus_bool_t
03294 _dbus_lookup_session_address (dbus_bool_t *supported,
03295                               DBusString  *address,
03296                               DBusError   *error)
03297 {
03298   /* Probably fill this in with something based on COM? */
03299   *supported = FALSE;
03300   return TRUE;
03301 }
03302 
03316 dbus_bool_t
03317 _dbus_append_keyring_directory_for_credentials (DBusString      *directory,
03318                                                 DBusCredentials *credentials)
03319 {
03320   DBusString homedir;
03321   DBusString dotdir;
03322   const char *homepath;
03323   const char *homedrive;
03324 
03325   _dbus_assert (credentials != NULL);
03326   _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
03327   
03328   if (!_dbus_string_init (&homedir))
03329     return FALSE;
03330 
03331   homedrive = _dbus_getenv("HOMEDRIVE");
03332   if (homedrive != NULL && *homedrive != '\0')
03333     {
03334       _dbus_string_append(&homedir,homedrive);
03335     }
03336 
03337   homepath = _dbus_getenv("HOMEPATH");
03338   if (homepath != NULL && *homepath != '\0')
03339     {
03340       _dbus_string_append(&homedir,homepath);
03341     }
03342   
03343 #ifdef DBUS_BUILD_TESTS
03344   {
03345     const char *override;
03346     
03347     override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
03348     if (override != NULL && *override != '\0')
03349       {
03350         _dbus_string_set_length (&homedir, 0);
03351         if (!_dbus_string_append (&homedir, override))
03352           goto failed;
03353 
03354         _dbus_verbose ("Using fake homedir for testing: %s\n",
03355                        _dbus_string_get_const_data (&homedir));
03356       }
03357     else
03358       {
03359         static dbus_bool_t already_warned = FALSE;
03360         if (!already_warned)
03361           {
03362             _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
03363             already_warned = TRUE;
03364           }
03365       }
03366   }
03367 #endif
03368 
03369 #ifdef DBUS_WINCE
03370   /* It's not possible to create a .something directory in Windows CE
03371      using the file explorer.  */
03372 #define KEYRING_DIR "dbus-keyrings"
03373 #else
03374 #define KEYRING_DIR ".dbus-keyrings"
03375 #endif
03376 
03377   _dbus_string_init_const (&dotdir, KEYRING_DIR);
03378   if (!_dbus_concat_dir_and_file (&homedir,
03379                                   &dotdir))
03380     goto failed;
03381   
03382   if (!_dbus_string_copy (&homedir, 0,
03383                           directory, _dbus_string_get_length (directory))) {
03384     goto failed;
03385   }
03386 
03387   _dbus_string_free (&homedir);
03388   return TRUE;
03389   
03390  failed: 
03391   _dbus_string_free (&homedir);
03392   return FALSE;
03393 }
03394 
03400 dbus_bool_t 
03401 _dbus_file_exists (const char *file)
03402 {
03403   DWORD attributes = GetFileAttributesA (file);
03404 
03405   if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
03406     return TRUE;
03407   else
03408     return FALSE;  
03409 }
03410 
03418 const char*
03419 _dbus_strerror (int error_number)
03420 {
03421 #ifdef DBUS_WINCE
03422   // TODO
03423   return "unknown";
03424 #else
03425   const char *msg;
03426 
03427   switch (error_number)
03428     {
03429     case WSAEINTR:
03430       return "Interrupted function call";
03431     case WSAEACCES:
03432       return "Permission denied";
03433     case WSAEFAULT:
03434       return "Bad address";
03435     case WSAEINVAL:
03436       return "Invalid argument";
03437     case WSAEMFILE:
03438       return "Too many open files";
03439     case WSAEWOULDBLOCK:
03440       return "Resource temporarily unavailable";
03441     case WSAEINPROGRESS:
03442       return "Operation now in progress";
03443     case WSAEALREADY:
03444       return "Operation already in progress";
03445     case WSAENOTSOCK:
03446       return "Socket operation on nonsocket";
03447     case WSAEDESTADDRREQ:
03448       return "Destination address required";
03449     case WSAEMSGSIZE:
03450       return "Message too long";
03451     case WSAEPROTOTYPE:
03452       return "Protocol wrong type for socket";
03453     case WSAENOPROTOOPT:
03454       return "Bad protocol option";
03455     case WSAEPROTONOSUPPORT:
03456       return "Protocol not supported";
03457     case WSAESOCKTNOSUPPORT:
03458       return "Socket type not supported";
03459     case WSAEOPNOTSUPP:
03460       return "Operation not supported";
03461     case WSAEPFNOSUPPORT:
03462       return "Protocol family not supported";
03463     case WSAEAFNOSUPPORT:
03464       return "Address family not supported by protocol family";
03465     case WSAEADDRINUSE:
03466       return "Address already in use";
03467     case WSAEADDRNOTAVAIL:
03468       return "Cannot assign requested address";
03469     case WSAENETDOWN:
03470       return "Network is down";
03471     case WSAENETUNREACH:
03472       return "Network is unreachable";
03473     case WSAENETRESET:
03474       return "Network dropped connection on reset";
03475     case WSAECONNABORTED:
03476       return "Software caused connection abort";
03477     case WSAECONNRESET:
03478       return "Connection reset by peer";
03479     case WSAENOBUFS:
03480       return "No buffer space available";
03481     case WSAEISCONN:
03482       return "Socket is already connected";
03483     case WSAENOTCONN:
03484       return "Socket is not connected";
03485     case WSAESHUTDOWN:
03486       return "Cannot send after socket shutdown";
03487     case WSAETIMEDOUT:
03488       return "Connection timed out";
03489     case WSAECONNREFUSED:
03490       return "Connection refused";
03491     case WSAEHOSTDOWN:
03492       return "Host is down";
03493     case WSAEHOSTUNREACH:
03494       return "No route to host";
03495     case WSAEPROCLIM:
03496       return "Too many processes";
03497     case WSAEDISCON:
03498       return "Graceful shutdown in progress";
03499     case WSATYPE_NOT_FOUND:
03500       return "Class type not found";
03501     case WSAHOST_NOT_FOUND:
03502       return "Host not found";
03503     case WSATRY_AGAIN:
03504       return "Nonauthoritative host not found";
03505     case WSANO_RECOVERY:
03506       return "This is a nonrecoverable error";
03507     case WSANO_DATA:
03508       return "Valid name, no data record of requested type";
03509     case WSA_INVALID_HANDLE:
03510       return "Specified event object handle is invalid";
03511     case WSA_INVALID_PARAMETER:
03512       return "One or more parameters are invalid";
03513     case WSA_IO_INCOMPLETE:
03514       return "Overlapped I/O event object not in signaled state";
03515     case WSA_IO_PENDING:
03516       return "Overlapped operations will complete later";
03517     case WSA_NOT_ENOUGH_MEMORY:
03518       return "Insufficient memory available";
03519     case WSA_OPERATION_ABORTED:
03520       return "Overlapped operation aborted";
03521 #ifdef WSAINVALIDPROCTABLE
03522 
03523     case WSAINVALIDPROCTABLE:
03524       return "Invalid procedure table from service provider";
03525 #endif
03526 #ifdef WSAINVALIDPROVIDER
03527 
03528     case WSAINVALIDPROVIDER:
03529       return "Invalid service provider version number";
03530 #endif
03531 #ifdef WSAPROVIDERFAILEDINIT
03532 
03533     case WSAPROVIDERFAILEDINIT:
03534       return "Unable to initialize a service provider";
03535 #endif
03536 
03537     case WSASYSCALLFAILURE:
03538       return "System call failure";
03539     }
03540   msg = strerror (error_number);
03541   if (msg == NULL)
03542     msg = "unknown";
03543 
03544   return msg;
03545 #endif //DBUS_WINCE
03546 }
03547 
03555 void
03556 _dbus_win_set_error_from_win_error (DBusError *error,
03557                                     int        code)
03558 {
03559   char *msg;
03560 
03561   /* As we want the English message, use the A API */
03562   FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
03563                   FORMAT_MESSAGE_IGNORE_INSERTS |
03564                   FORMAT_MESSAGE_FROM_SYSTEM,
03565                   NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
03566                   (LPSTR) &msg, 0, NULL);
03567   if (msg)
03568     {
03569       char *msg_copy;
03570 
03571       msg_copy = dbus_malloc (strlen (msg));
03572       strcpy (msg_copy, msg);
03573       LocalFree (msg);
03574 
03575       dbus_set_error (error, "win32.error", "%s", msg_copy);
03576     }
03577   else
03578     dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
03579 }
03580 
03581 void
03582 _dbus_win_warn_win_error (const char *message,
03583                           int         code)
03584 {
03585   DBusError error;
03586 
03587   dbus_error_init (&error);
03588   _dbus_win_set_error_from_win_error (&error, code);
03589   _dbus_warn ("%s: %s\n", message, error.message);
03590   dbus_error_free (&error);
03591 }
03592 
03600 dbus_bool_t
03601 _dbus_delete_directory (const DBusString *filename,
03602                         DBusError        *error)
03603 {
03604   const char *filename_c;
03605 
03606   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
03607 
03608   filename_c = _dbus_string_get_const_data (filename);
03609 
03610   if (RemoveDirectoryA (filename_c) == 0)
03611     {
03612       char *emsg = _dbus_win_error_string (GetLastError ());
03613       dbus_set_error (error, _dbus_win_error_from_last_error (),
03614                       "Failed to remove directory %s: %s",
03615                       filename_c, emsg);
03616       _dbus_win_free_error_string (emsg);
03617       return FALSE;
03618     }
03619 
03620   return TRUE;
03621 }
03622 
03629 dbus_bool_t
03630 _dbus_path_is_absolute (const DBusString *filename)
03631 {
03632   if (_dbus_string_get_length (filename) > 0)
03633     return _dbus_string_get_byte (filename, 1) == ':'
03634            || _dbus_string_get_byte (filename, 0) == '\\'
03635            || _dbus_string_get_byte (filename, 0) == '/';
03636   else
03637     return FALSE;
03638 }
03639 
03640 dbus_bool_t
03641 _dbus_check_setuid (void)
03642 {
03643   return FALSE;
03644 }
03645 
03647 /* tests in dbus-sysdeps-util.c */
03648