D-Bus 1.4.0

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 Ralf Habacker <ralf.habacker@freenet.de>
00008  * Copyright (C) 2006 Peter Kümmel  <syntheticpp@gmx.net>
00009  * Copyright (C) 2006 Christian Ehrlicher <ch.ehrlicher@gmx.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-sysdeps.h"
00041 #include "dbus-threads.h"
00042 #include "dbus-protocol.h"
00043 #include "dbus-string.h"
00044 #include "dbus-sysdeps-win.h"
00045 #include "dbus-protocol.h"
00046 #include "dbus-hash.h"
00047 #include "dbus-sockets-win.h"
00048 #include "dbus-list.h"
00049 #include "dbus-nonce.h"
00050 #include "dbus-credentials.h"
00051 
00052 #include <windows.h>
00053 #include <ws2tcpip.h>
00054 #include <wincrypt.h>
00055 
00056 /* Declarations missing in mingw's headers */
00057 extern BOOL WINAPI ConvertStringSidToSidA (LPCSTR  StringSid, PSID *Sid);
00058 extern BOOL WINAPI ConvertSidToStringSidA (PSID Sid, LPSTR *StringSid);
00059 
00060 #include <stdio.h>
00061 
00062 #include <string.h>
00063 #if HAVE_ERRNO_H
00064 #include <errno.h>
00065 #endif
00066 #ifndef DBUS_WINCE
00067 #include <mbstring.h>
00068 #include <sys/stat.h>
00069 #include <sys/types.h>
00070 #endif
00071 
00072 #ifdef HAVE_WS2TCPIP_H
00073 /* getaddrinfo for Windows CE (and Windows).  */
00074 #include <ws2tcpip.h>
00075 #endif
00076 
00077 #ifdef HAVE_WSPIAPI_H
00078 // needed for w2k compatibility (getaddrinfo/freeaddrinfo/getnameinfo)
00079 #ifdef __GNUC__
00080 #define _inline
00081 #include "wspiapi.h"
00082 #else
00083 #include <wspiapi.h>
00084 #endif
00085 #endif // HAVE_WSPIAPI_H
00086 
00087 #ifndef O_BINARY
00088 #define O_BINARY 0
00089 #endif
00090 
00091 typedef int socklen_t;
00092 
00093 
00094 void
00095 _dbus_win_set_errno (int err)
00096 {
00097 #ifdef DBUS_WINCE
00098   SetLastError (err);
00099 #else
00100   errno = err;
00101 #endif
00102 }
00103 
00104 
00105 /* Convert GetLastError() to a dbus error.  */
00106 const char*
00107 _dbus_win_error_from_last_error (void)
00108 {
00109   switch (GetLastError())
00110     {
00111     case 0:
00112       return DBUS_ERROR_FAILED;
00113     
00114     case ERROR_NO_MORE_FILES:
00115     case ERROR_TOO_MANY_OPEN_FILES:
00116       return DBUS_ERROR_LIMITS_EXCEEDED; /* kernel out of memory */
00117 
00118     case ERROR_ACCESS_DENIED:
00119     case ERROR_CANNOT_MAKE:
00120       return DBUS_ERROR_ACCESS_DENIED;
00121 
00122     case ERROR_NOT_ENOUGH_MEMORY:
00123       return DBUS_ERROR_NO_MEMORY;
00124 
00125     case ERROR_FILE_EXISTS:
00126       return DBUS_ERROR_FILE_EXISTS;
00127 
00128     case ERROR_FILE_NOT_FOUND:
00129     case ERROR_PATH_NOT_FOUND:
00130       return DBUS_ERROR_FILE_NOT_FOUND;
00131     }
00132   
00133   return DBUS_ERROR_FAILED;
00134 }
00135 
00136 
00137 char*
00138 _dbus_win_error_string (int error_number)
00139 {
00140   char *msg;
00141 
00142   FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
00143                   FORMAT_MESSAGE_IGNORE_INSERTS |
00144                   FORMAT_MESSAGE_FROM_SYSTEM,
00145                   NULL, error_number, 0,
00146                   (LPSTR) &msg, 0, NULL);
00147 
00148   if (msg[strlen (msg) - 1] == '\n')
00149     msg[strlen (msg) - 1] = '\0';
00150   if (msg[strlen (msg) - 1] == '\r')
00151     msg[strlen (msg) - 1] = '\0';
00152 
00153   return msg;
00154 }
00155 
00156 void
00157 _dbus_win_free_error_string (char *string)
00158 {
00159   LocalFree (string);
00160 }
00161 
00182 int
00183 _dbus_read_socket (int               fd,
00184                    DBusString       *buffer,
00185                    int               count)
00186 {
00187   int bytes_read;
00188   int start;
00189   char *data;
00190 
00191   _dbus_assert (count >= 0);
00192 
00193   start = _dbus_string_get_length (buffer);
00194 
00195   if (!_dbus_string_lengthen (buffer, count))
00196     {
00197       _dbus_win_set_errno (ENOMEM);
00198       return -1;
00199     }
00200 
00201   data = _dbus_string_get_data_len (buffer, start, count);
00202 
00203  again:
00204  
00205   _dbus_verbose ("recv: count=%d fd=%d\n", count, fd);
00206   bytes_read = recv (fd, data, count, 0);
00207   
00208   if (bytes_read == SOCKET_ERROR)
00209         {
00210           DBUS_SOCKET_SET_ERRNO();
00211           _dbus_verbose ("recv: failed: %s (%d)\n", _dbus_strerror (errno), errno);
00212           bytes_read = -1;
00213         }
00214         else
00215           _dbus_verbose ("recv: = %d\n", bytes_read);
00216 
00217   if (bytes_read < 0)
00218     {
00219       if (errno == EINTR)
00220         goto again;
00221       else      
00222         {
00223           /* put length back (note that this doesn't actually realloc anything) */
00224           _dbus_string_set_length (buffer, start);
00225           return -1;
00226         }
00227     }
00228   else
00229     {
00230       /* put length back (doesn't actually realloc) */
00231       _dbus_string_set_length (buffer, start + bytes_read);
00232 
00233 #if 0
00234       if (bytes_read > 0)
00235         _dbus_verbose_bytes_of_string (buffer, start, bytes_read);
00236 #endif
00237 
00238       return bytes_read;
00239     }
00240 }
00241 
00252 int
00253 _dbus_write_socket (int               fd,
00254                     const DBusString *buffer,
00255                     int               start,
00256                     int               len)
00257 {
00258   const char *data;
00259   int bytes_written;
00260 
00261   data = _dbus_string_get_const_data_len (buffer, start, len);
00262 
00263  again:
00264 
00265   _dbus_verbose ("send: len=%d fd=%d\n", len, fd);
00266   bytes_written = send (fd, data, len, 0);
00267 
00268   if (bytes_written == SOCKET_ERROR)
00269     {
00270       DBUS_SOCKET_SET_ERRNO();
00271       _dbus_verbose ("send: failed: %s\n", _dbus_strerror_from_errno ());
00272       bytes_written = -1;
00273     }
00274     else
00275       _dbus_verbose ("send: = %d\n", bytes_written);
00276 
00277   if (bytes_written < 0 && errno == EINTR)
00278     goto again;
00279     
00280 #if 0
00281   if (bytes_written > 0)
00282     _dbus_verbose_bytes_of_string (buffer, start, bytes_written);
00283 #endif
00284 
00285   return bytes_written;
00286 }
00287 
00288 
00296 dbus_bool_t
00297 _dbus_close_socket (int        fd,
00298                     DBusError *error)
00299 {
00300   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00301 
00302  again:
00303   if (closesocket (fd) == SOCKET_ERROR)
00304     {
00305       DBUS_SOCKET_SET_ERRNO ();
00306       
00307       if (errno == EINTR)
00308         goto again;
00309         
00310       dbus_set_error (error, _dbus_error_from_errno (errno),
00311                       "Could not close socket: socket=%d, , %s",
00312                       fd, _dbus_strerror_from_errno ());
00313       return FALSE;
00314     }
00315   _dbus_verbose ("_dbus_close_socket: socket=%d, \n", fd);
00316 
00317   return TRUE;
00318 }
00319 
00327 void
00328 _dbus_fd_set_close_on_exec (intptr_t handle)
00329 {
00330   if ( !SetHandleInformation( (HANDLE) handle,
00331                         HANDLE_FLAG_INHERIT | HANDLE_FLAG_PROTECT_FROM_CLOSE,
00332                         0 /*disable both flags*/ ) )
00333     {
00334       _dbus_win_warn_win_error ("Disabling socket handle inheritance failed:", GetLastError());
00335     }
00336 }
00337 
00345 dbus_bool_t
00346 _dbus_set_fd_nonblocking (int             handle,
00347                           DBusError      *error)
00348 {
00349   u_long one = 1;
00350 
00351   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
00352 
00353   if (ioctlsocket (handle, FIONBIO, &one) == SOCKET_ERROR)
00354     {
00355       DBUS_SOCKET_SET_ERRNO ();
00356       dbus_set_error (error, _dbus_error_from_errno (errno),
00357                       "Failed to set socket %d:%d to nonblocking: %s", handle,
00358                       _dbus_strerror_from_errno ());
00359       return FALSE;
00360     }
00361 
00362   return TRUE;
00363 }
00364 
00365 
00386 int
00387 _dbus_write_socket_two (int               fd,
00388                         const DBusString *buffer1,
00389                         int               start1,
00390                         int               len1,
00391                         const DBusString *buffer2,
00392                         int               start2,
00393                         int               len2)
00394 {
00395   WSABUF vectors[2];
00396   const char *data1;
00397   const char *data2;
00398   int rc;
00399   DWORD bytes_written;
00400 
00401   _dbus_assert (buffer1 != NULL);
00402   _dbus_assert (start1 >= 0);
00403   _dbus_assert (start2 >= 0);
00404   _dbus_assert (len1 >= 0);
00405   _dbus_assert (len2 >= 0);
00406 
00407 
00408   data1 = _dbus_string_get_const_data_len (buffer1, start1, len1);
00409 
00410   if (buffer2 != NULL)
00411     data2 = _dbus_string_get_const_data_len (buffer2, start2, len2);
00412   else
00413     {
00414       data2 = NULL;
00415       start2 = 0;
00416       len2 = 0;
00417     }
00418 
00419   vectors[0].buf = (char*) data1;
00420   vectors[0].len = len1;
00421   vectors[1].buf = (char*) data2;
00422   vectors[1].len = len2;
00423 
00424  again:
00425  
00426   _dbus_verbose ("WSASend: len1+2=%d+%d fd=%d\n", len1, len2, fd);
00427   rc = WSASend (fd, 
00428                 vectors,
00429                 data2 ? 2 : 1, 
00430                 &bytes_written,
00431                 0, 
00432                 NULL, 
00433                 NULL);
00434                 
00435   if (rc == SOCKET_ERROR)
00436     {
00437       DBUS_SOCKET_SET_ERRNO ();
00438       _dbus_verbose ("WSASend: failed: %s\n", _dbus_strerror_from_errno ());
00439       bytes_written = -1;
00440     }
00441   else
00442     _dbus_verbose ("WSASend: = %ld\n", bytes_written);
00443     
00444   if (bytes_written < 0 && errno == EINTR)
00445     goto again;
00446       
00447   return bytes_written;
00448 }
00449 
00450 dbus_bool_t
00451 _dbus_socket_is_invalid (int fd)
00452 {
00453     return fd == INVALID_SOCKET ? TRUE : FALSE;
00454 }
00455 
00456 #if 0
00457 
00466 int
00467 _dbus_connect_named_pipe (const char     *path,
00468                           DBusError      *error)
00469 {
00470   _dbus_assert_not_reached ("not implemented");
00471 }
00472 
00473 #endif
00474 
00475 
00476 
00477 void
00478 _dbus_win_startup_winsock (void)
00479 {
00480   /* Straight from MSDN, deuglified */
00481 
00482   static dbus_bool_t beenhere = FALSE;
00483 
00484   WORD wVersionRequested;
00485   WSADATA wsaData;
00486   int err;
00487 
00488   if (beenhere)
00489     return;
00490 
00491   wVersionRequested = MAKEWORD (2, 0);
00492 
00493   err = WSAStartup (wVersionRequested, &wsaData);
00494   if (err != 0)
00495     {
00496       _dbus_assert_not_reached ("Could not initialize WinSock");
00497       _dbus_abort ();
00498     }
00499 
00500   /* Confirm that the WinSock DLL supports 2.0.  Note that if the DLL
00501    * supports versions greater than 2.0 in addition to 2.0, it will
00502    * still return 2.0 in wVersion since that is the version we
00503    * requested.
00504    */
00505   if (LOBYTE (wsaData.wVersion) != 2 ||
00506       HIBYTE (wsaData.wVersion) != 0)
00507     {
00508       _dbus_assert_not_reached ("No usable WinSock found");
00509       _dbus_abort ();
00510     }
00511 
00512   beenhere = TRUE;
00513 }
00514 
00515 
00516 
00517 
00518 
00519 
00520 
00521 
00522 
00523 /************************************************************************
00524  
00525  UTF / string code
00526  
00527  ************************************************************************/
00528 
00532 int _dbus_printf_string_upper_bound (const char *format,
00533                                      va_list args)
00534 {
00535   /* MSVCRT's vsnprintf semantics are a bit different */
00536   char buf[1024];
00537   int bufsize;
00538   int len;
00539 
00540   bufsize = sizeof (buf);
00541   len = _vsnprintf (buf, bufsize - 1, format, args);
00542 
00543   while (len == -1) /* try again */
00544     {
00545       char *p;
00546 
00547       bufsize *= 2;
00548 
00549       p = malloc (bufsize);
00550       len = _vsnprintf (p, bufsize - 1, format, args);
00551       free (p);
00552     }
00553 
00554   return len;
00555 }
00556 
00557 
00565 wchar_t *
00566 _dbus_win_utf8_to_utf16 (const char *str,
00567                          DBusError  *error)
00568 {
00569   DBusString s;
00570   int n;
00571   wchar_t *retval;
00572 
00573   _dbus_string_init_const (&s, str);
00574 
00575   if (!_dbus_string_validate_utf8 (&s, 0, _dbus_string_get_length (&s)))
00576     {
00577       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid UTF-8");
00578       return NULL;
00579     }
00580 
00581   n = MultiByteToWideChar (CP_UTF8, 0, str, -1, NULL, 0);
00582 
00583   if (n == 0)
00584     {
00585       _dbus_win_set_error_from_win_error (error, GetLastError ());
00586       return NULL;
00587     }
00588 
00589   retval = dbus_new (wchar_t, n);
00590 
00591   if (!retval)
00592     {
00593       _DBUS_SET_OOM (error);
00594       return NULL;
00595     }
00596 
00597   if (MultiByteToWideChar (CP_UTF8, 0, str, -1, retval, n) != n)
00598     {
00599       dbus_free (retval);
00600       dbus_set_error_const (error, DBUS_ERROR_FAILED, "MultiByteToWideChar inconsistency");
00601       return NULL;
00602     }
00603 
00604   return retval;
00605 }
00606 
00614 char *
00615 _dbus_win_utf16_to_utf8 (const wchar_t *str,
00616                          DBusError     *error)
00617 {
00618   int n;
00619   char *retval;
00620 
00621   n = WideCharToMultiByte (CP_UTF8, 0, str, -1, NULL, 0, NULL, NULL);
00622 
00623   if (n == 0)
00624     {
00625       _dbus_win_set_error_from_win_error (error, GetLastError ());
00626       return NULL;
00627     }
00628 
00629   retval = dbus_malloc (n);
00630 
00631   if (!retval)
00632     {
00633       _DBUS_SET_OOM (error);
00634       return NULL;
00635     }
00636 
00637   if (WideCharToMultiByte (CP_UTF8, 0, str, -1, retval, n, NULL, NULL) != n)
00638     {
00639       dbus_free (retval);
00640       dbus_set_error_const (error, DBUS_ERROR_FAILED, "WideCharToMultiByte inconsistency");
00641       return NULL;
00642     }
00643 
00644   return retval;
00645 }
00646 
00647 
00648 
00649 
00650 
00651 
00652 /************************************************************************
00653  
00654  
00655  ************************************************************************/
00656 
00657 dbus_bool_t
00658 _dbus_win_account_to_sid (const wchar_t *waccount,
00659                           void           **ppsid,
00660                           DBusError       *error)
00661 {
00662   dbus_bool_t retval = FALSE;
00663   DWORD sid_length, wdomain_length;
00664   SID_NAME_USE use;
00665   wchar_t *wdomain;
00666 
00667   *ppsid = NULL;
00668 
00669   sid_length = 0;
00670   wdomain_length = 0;
00671   if (!LookupAccountNameW (NULL, waccount, NULL, &sid_length,
00672                            NULL, &wdomain_length, &use) &&
00673       GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00674     {
00675       _dbus_win_set_error_from_win_error (error, GetLastError ());
00676       return FALSE;
00677     }
00678 
00679   *ppsid = dbus_malloc (sid_length);
00680   if (!*ppsid)
00681     {
00682       _DBUS_SET_OOM (error);
00683       return FALSE;
00684     }
00685 
00686   wdomain = dbus_new (wchar_t, wdomain_length);
00687   if (!wdomain)
00688     {
00689       _DBUS_SET_OOM (error);
00690       goto out1;
00691     }
00692 
00693   if (!LookupAccountNameW (NULL, waccount, (PSID) *ppsid, &sid_length,
00694                            wdomain, &wdomain_length, &use))
00695     {
00696       _dbus_win_set_error_from_win_error (error, GetLastError ());
00697       goto out2;
00698     }
00699 
00700   if (!IsValidSid ((PSID) *ppsid))
00701     {
00702       dbus_set_error_const (error, DBUS_ERROR_FAILED, "Invalid SID");
00703       goto out2;
00704     }
00705 
00706   retval = TRUE;
00707 
00708 out2:
00709   dbus_free (wdomain);
00710 out1:
00711   if (!retval)
00712     {
00713       dbus_free (*ppsid);
00714       *ppsid = NULL;
00715     }
00716 
00717   return retval;
00718 }
00719 
00729 unsigned long
00730 _dbus_pid_for_log (void)
00731 {
00732   return _dbus_getpid ();
00733 }
00734 
00735 
00736 #ifndef DBUS_WINCE
00737 
00741 static dbus_bool_t
00742 _dbus_getsid(char **sid)
00743 {
00744   HANDLE process_token = INVALID_HANDLE_VALUE;
00745   TOKEN_USER *token_user = NULL;
00746   DWORD n;
00747   PSID psid;
00748   int retval = FALSE;
00749   
00750   if (!OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &process_token)) 
00751     {
00752       _dbus_win_warn_win_error ("OpenProcessToken failed", GetLastError ());
00753       goto failed;
00754     }
00755   if ((!GetTokenInformation (process_token, TokenUser, NULL, 0, &n)
00756             && GetLastError () != ERROR_INSUFFICIENT_BUFFER)
00757            || (token_user = alloca (n)) == NULL
00758            || !GetTokenInformation (process_token, TokenUser, token_user, n, &n))
00759     {
00760       _dbus_win_warn_win_error ("GetTokenInformation failed", GetLastError ());
00761       goto failed;
00762     }
00763   psid = token_user->User.Sid;
00764   if (!IsValidSid (psid))
00765     {
00766       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00767       goto failed;
00768     }
00769   if (!ConvertSidToStringSidA (psid, sid))
00770     {
00771       _dbus_verbose("%s invalid sid\n",__FUNCTION__);
00772       goto failed;
00773     }
00774 //okay:
00775   retval = TRUE;
00776 
00777 failed:
00778   if (process_token != INVALID_HANDLE_VALUE)
00779     CloseHandle (process_token);
00780 
00781   _dbus_verbose("_dbus_getsid() returns %d\n",retval);
00782   return retval;
00783 }
00784 #endif
00785 
00786 /************************************************************************
00787  
00788  pipes
00789  
00790  ************************************************************************/
00791 
00807 dbus_bool_t
00808 _dbus_full_duplex_pipe (int        *fd1,
00809                         int        *fd2,
00810                         dbus_bool_t blocking,
00811                         DBusError  *error)
00812 {
00813   SOCKET temp, socket1 = -1, socket2 = -1;
00814   struct sockaddr_in saddr;
00815   int len;
00816   u_long arg;
00817   fd_set read_set, write_set;
00818   struct timeval tv;
00819   int res;
00820 
00821   _dbus_win_startup_winsock ();
00822 
00823   temp = socket (AF_INET, SOCK_STREAM, 0);
00824   if (temp == INVALID_SOCKET)
00825     {
00826       DBUS_SOCKET_SET_ERRNO ();
00827       goto out0;
00828     }
00829 
00830   _DBUS_ZERO (saddr);
00831   saddr.sin_family = AF_INET;
00832   saddr.sin_port = 0;
00833   saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
00834 
00835   if (bind (temp, (struct sockaddr *)&saddr, sizeof (saddr)) == SOCKET_ERROR)
00836     {
00837       DBUS_SOCKET_SET_ERRNO ();
00838       goto out0;
00839     }
00840 
00841   if (listen (temp, 1) == SOCKET_ERROR)
00842     {
00843       DBUS_SOCKET_SET_ERRNO ();
00844       goto out0;
00845     }
00846 
00847   len = sizeof (saddr);
00848   if (getsockname (temp, (struct sockaddr *)&saddr, &len) == SOCKET_ERROR)
00849     {
00850       DBUS_SOCKET_SET_ERRNO ();
00851       goto out0;
00852     }
00853 
00854   socket1 = socket (AF_INET, SOCK_STREAM, 0);
00855   if (socket1 == INVALID_SOCKET)
00856     {
00857       DBUS_SOCKET_SET_ERRNO ();
00858       goto out0;
00859     }
00860 
00861   if (connect (socket1, (struct sockaddr  *)&saddr, len) == SOCKET_ERROR)
00862     {
00863       DBUS_SOCKET_SET_ERRNO ();
00864       goto out1;
00865     }
00866 
00867   socket2 = accept (temp, (struct sockaddr *) &saddr, &len);
00868   if (socket2 == INVALID_SOCKET)
00869     {
00870       DBUS_SOCKET_SET_ERRNO ();
00871       goto out1;
00872     }
00873 
00874   if (!blocking)
00875     {
00876       arg = 1;
00877       if (ioctlsocket (socket1, FIONBIO, &arg) == SOCKET_ERROR)
00878         {
00879           DBUS_SOCKET_SET_ERRNO ();
00880           goto out2;
00881         }
00882 
00883       arg = 1;
00884       if (ioctlsocket (socket2, FIONBIO, &arg) == SOCKET_ERROR)
00885         {
00886           DBUS_SOCKET_SET_ERRNO ();
00887           goto out2;
00888         }
00889     }
00890 
00891   *fd1 = socket1;
00892   *fd2 = socket2;
00893 
00894   _dbus_verbose ("full-duplex pipe %d:%d <-> %d:%d\n",
00895                  *fd1, socket1, *fd2, socket2);
00896 
00897   closesocket (temp);
00898 
00899   return TRUE;
00900 
00901 out2:
00902   closesocket (socket2);
00903 out1:
00904   closesocket (socket1);
00905 out0:
00906   closesocket (temp);
00907 
00908   dbus_set_error (error, _dbus_error_from_errno (errno),
00909                   "Could not setup socket pair: %s",
00910                   _dbus_strerror_from_errno ());
00911 
00912   return FALSE;
00913 }
00914 
00923 int
00924 _dbus_poll (DBusPollFD *fds,
00925             int         n_fds,
00926             int         timeout_milliseconds)
00927 {
00928 #define USE_CHRIS_IMPL 0
00929 
00930 #if USE_CHRIS_IMPL
00931 
00932 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
00933   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
00934   char *msgp;
00935 
00936   int ret = 0;
00937   int i;
00938   struct timeval tv;
00939   int ready;
00940 
00941 #define DBUS_STACK_WSAEVENTS 256
00942   WSAEVENT eventsOnStack[DBUS_STACK_WSAEVENTS];
00943   WSAEVENT *pEvents = NULL;
00944   if (n_fds > DBUS_STACK_WSAEVENTS)
00945     pEvents = calloc(sizeof(WSAEVENT), n_fds);
00946   else
00947     pEvents = eventsOnStack;
00948 
00949 
00950 #ifdef DBUS_ENABLE_VERBOSE_MODE
00951   msgp = msg;
00952   msgp += sprintf (msgp, "WSAEventSelect: to=%d\n\t", timeout_milliseconds);
00953   for (i = 0; i < n_fds; i++)
00954     {
00955       static dbus_bool_t warned = FALSE;
00956       DBusPollFD *fdp = &fds[i];
00957 
00958 
00959       if (fdp->events & _DBUS_POLLIN)
00960         msgp += sprintf (msgp, "R:%d ", fdp->fd);
00961 
00962       if (fdp->events & _DBUS_POLLOUT)
00963         msgp += sprintf (msgp, "W:%d ", fdp->fd);
00964 
00965       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
00966 
00967       // FIXME: more robust code for long  msg
00968       //        create on heap when msg[] becomes too small
00969       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
00970         {
00971           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
00972         }
00973     }
00974 
00975   msgp += sprintf (msgp, "\n");
00976   _dbus_verbose ("%s",msg);
00977 #endif
00978   for (i = 0; i < n_fds; i++)
00979     {
00980       DBusPollFD *fdp = &fds[i];
00981       WSAEVENT ev;
00982       long lNetworkEvents = FD_OOB;
00983 
00984       ev = WSACreateEvent();
00985 
00986       if (fdp->events & _DBUS_POLLIN)
00987         lNetworkEvents |= FD_READ | FD_ACCEPT | FD_CLOSE;
00988 
00989       if (fdp->events & _DBUS_POLLOUT)
00990         lNetworkEvents |= FD_WRITE | FD_CONNECT;
00991 
00992       WSAEventSelect(fdp->fd, ev, lNetworkEvents);
00993 
00994       pEvents[i] = ev;
00995     }
00996 
00997 
00998   ready = WSAWaitForMultipleEvents (n_fds, pEvents, FALSE, timeout_milliseconds, FALSE);
00999 
01000   if (DBUS_SOCKET_API_RETURNS_ERROR (ready))
01001     {
01002       DBUS_SOCKET_SET_ERRNO ();
01003       if (errno != WSAEWOULDBLOCK)
01004         _dbus_verbose ("WSAWaitForMultipleEvents: failed: %s\n", _dbus_strerror_from_errno ());
01005       ret = -1;
01006     }
01007   else if (ready == WSA_WAIT_TIMEOUT)
01008     {
01009       _dbus_verbose ("WSAWaitForMultipleEvents: WSA_WAIT_TIMEOUT\n");
01010       ret = 0;
01011     }
01012   else if (ready >= WSA_WAIT_EVENT_0 && ready < (int)(WSA_WAIT_EVENT_0 + n_fds))
01013     {
01014       msgp = msg;
01015       msgp += sprintf (msgp, "WSAWaitForMultipleEvents: =%d\n\t", ready);
01016 
01017       for (i = 0; i < n_fds; i++)
01018         {
01019           DBusPollFD *fdp = &fds[i];
01020           WSANETWORKEVENTS ne;
01021 
01022           fdp->revents = 0;
01023 
01024           WSAEnumNetworkEvents(fdp->fd, pEvents[i], &ne);
01025 
01026           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01027             fdp->revents |= _DBUS_POLLIN;
01028 
01029           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01030             fdp->revents |= _DBUS_POLLOUT;
01031 
01032           if (ne.lNetworkEvents & (FD_OOB))
01033             fdp->revents |= _DBUS_POLLERR;
01034 
01035           if (ne.lNetworkEvents & (FD_READ | FD_ACCEPT | FD_CLOSE))
01036               msgp += sprintf (msgp, "R:%d ", fdp->fd);
01037 
01038           if (ne.lNetworkEvents & (FD_WRITE | FD_CONNECT))
01039               msgp += sprintf (msgp, "W:%d ", fdp->fd);
01040 
01041           if (ne.lNetworkEvents & (FD_OOB))
01042               msgp += sprintf (msgp, "E:%d ", fdp->fd);
01043 
01044           msgp += sprintf (msgp, "lNetworkEvents:%d ", ne.lNetworkEvents);
01045 
01046           if(ne.lNetworkEvents)
01047             ret++;
01048 
01049           WSAEventSelect(fdp->fd, pEvents[i], 0);
01050         }
01051 
01052       msgp += sprintf (msgp, "\n");
01053       _dbus_verbose ("%s",msg);
01054     }
01055   else
01056     {
01057       _dbus_verbose ("WSAWaitForMultipleEvents: failed for unknown reason!");
01058       ret = -1;
01059     }
01060 
01061   for(i = 0; i < n_fds; i++)
01062     {
01063       WSACloseEvent(pEvents[i]);
01064     }
01065 
01066   if (n_fds > DBUS_STACK_WSAEVENTS)
01067     free(pEvents);
01068 
01069   return ret;
01070 
01071 #else   /* USE_CHRIS_IMPL */
01072 
01073 #define DBUS_POLL_CHAR_BUFFER_SIZE 2000
01074   char msg[DBUS_POLL_CHAR_BUFFER_SIZE];
01075   char *msgp;
01076 
01077   fd_set read_set, write_set, err_set;
01078   int max_fd = 0;
01079   int i;
01080   struct timeval tv;
01081   int ready;
01082 
01083   FD_ZERO (&read_set);
01084   FD_ZERO (&write_set);
01085   FD_ZERO (&err_set);
01086 
01087 
01088 #ifdef DBUS_ENABLE_VERBOSE_MODE
01089   msgp = msg;
01090   msgp += sprintf (msgp, "select: to=%d\n\t", timeout_milliseconds);
01091   for (i = 0; i < n_fds; i++)
01092     {
01093       static dbus_bool_t warned = FALSE;
01094       DBusPollFD *fdp = &fds[i];
01095 
01096 
01097       if (fdp->events & _DBUS_POLLIN)
01098         msgp += sprintf (msgp, "R:%d ", fdp->fd);
01099 
01100       if (fdp->events & _DBUS_POLLOUT)
01101         msgp += sprintf (msgp, "W:%d ", fdp->fd);
01102 
01103       msgp += sprintf (msgp, "E:%d\n\t", fdp->fd);
01104 
01105       // FIXME: more robust code for long  msg
01106       //        create on heap when msg[] becomes too small
01107       if (msgp >= msg + DBUS_POLL_CHAR_BUFFER_SIZE)
01108         {
01109           _dbus_assert_not_reached ("buffer overflow in _dbus_poll");
01110         }
01111     }
01112 
01113   msgp += sprintf (msgp, "\n");
01114   _dbus_verbose ("%s",msg);
01115 #endif
01116   for (i = 0; i < n_fds; i++)
01117     {
01118       DBusPollFD *fdp = &fds[i]; 
01119 
01120       if (fdp->events & _DBUS_POLLIN)
01121         FD_SET (fdp->fd, &read_set);
01122 
01123       if (fdp->events & _DBUS_POLLOUT)
01124         FD_SET (fdp->fd, &write_set);
01125 
01126       FD_SET (fdp->fd, &err_set);
01127 
01128       max_fd = MAX (max_fd, fdp->fd);
01129     }
01130 
01131 
01132   tv.tv_sec = timeout_milliseconds / 1000;
01133   tv.tv_usec = (timeout_milliseconds % 1000) * 1000;
01134 
01135   ready = select (max_fd + 1, &read_set, &write_set, &err_set,
01136                   timeout_milliseconds < 0 ? NULL : &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   if (!_dbus_set_fd_nonblocking (fd, error))
01363     {
01364       closesocket (fd);
01365       return -1;
01366     }
01367 
01368   return fd;
01369 }
01370 
01386 int
01387 _dbus_listen_tcp_socket (const char     *host,
01388                          const char     *port,
01389                          const char     *family,
01390                          DBusString     *retport,
01391                          int           **fds_p,
01392                          DBusError      *error)
01393 {
01394   int nlisten_fd = 0, *listen_fd = NULL, res, i, port_num = -1;
01395   struct addrinfo hints;
01396   struct addrinfo *ai, *tmp;
01397 
01398   // On Vista, sockaddr_gen must be a sockaddr_in6, and not a sockaddr_in6_old
01399   //That's required for family == IPv6(which is the default on Vista if family is not given)
01400   //So we use our own union instead of sockaddr_gen:
01401 
01402   typedef union {
01403         struct sockaddr Address;
01404         struct sockaddr_in AddressIn;
01405         struct sockaddr_in6 AddressIn6;
01406   } mysockaddr_gen;
01407 
01408   *fds_p = NULL;
01409   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01410 
01411   _dbus_win_startup_winsock ();
01412 
01413   _DBUS_ZERO (hints);
01414 
01415   if (!family)
01416     hints.ai_family = AF_UNSPEC;
01417   else if (!strcmp(family, "ipv4"))
01418     hints.ai_family = AF_INET;
01419   else if (!strcmp(family, "ipv6"))
01420     hints.ai_family = AF_INET6;
01421   else
01422     {
01423       dbus_set_error (error,
01424                       DBUS_ERROR_INVALID_ARGS,
01425                       "Unknown address family %s", family);
01426       return -1;
01427     }
01428 
01429   hints.ai_protocol = IPPROTO_TCP;
01430   hints.ai_socktype = SOCK_STREAM;
01431 #ifdef AI_ADDRCONFIG
01432   hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
01433 #else
01434   hints.ai_flags = AI_PASSIVE;
01435 #endif
01436 
01437  redo_lookup_with_port:
01438   if ((res = getaddrinfo(host, port, &hints, &ai)) != 0 || !ai)
01439     {
01440       dbus_set_error (error,
01441                       _dbus_error_from_errno (res),
01442                       "Failed to lookup host/port: \"%s:%s\": %s (%d)",
01443                       host ? host : "*", port, _dbus_strerror(res), res);
01444       return -1;
01445     }
01446 
01447   tmp = ai;
01448   while (tmp)
01449     {
01450       int fd = -1, *newlisten_fd;
01451       if ((fd = socket (tmp->ai_family, SOCK_STREAM, 0)) == INVALID_SOCKET)
01452         {
01453           DBUS_SOCKET_SET_ERRNO ();
01454           dbus_set_error (error,
01455                           _dbus_error_from_errno (errno),
01456                          "Failed to open socket: %s",
01457                          _dbus_strerror_from_errno ());
01458           goto failed;
01459         }
01460       _DBUS_ASSERT_ERROR_IS_CLEAR(error);
01461 
01462       if (bind (fd, (struct sockaddr*) tmp->ai_addr, tmp->ai_addrlen) == SOCKET_ERROR)
01463         {
01464           DBUS_SOCKET_SET_ERRNO ();
01465           dbus_set_error (error, _dbus_error_from_errno (errno),
01466                           "Failed to bind socket \"%s:%s\": %s",
01467                           host ? host : "*", port, _dbus_strerror_from_errno ());
01468           closesocket (fd);
01469           goto failed;
01470     }
01471 
01472       if (listen (fd, 30 /* backlog */) == SOCKET_ERROR)
01473         {
01474           DBUS_SOCKET_SET_ERRNO ();
01475           dbus_set_error (error, _dbus_error_from_errno (errno),
01476                           "Failed to listen on socket \"%s:%s\": %s",
01477                           host ? host : "*", port, _dbus_strerror_from_errno ());
01478           closesocket (fd);
01479           goto failed;
01480         }
01481 
01482       newlisten_fd = dbus_realloc(listen_fd, sizeof(int)*(nlisten_fd+1));
01483       if (!newlisten_fd)
01484         {
01485           closesocket (fd);
01486           dbus_set_error (error, DBUS_ERROR_NO_MEMORY,
01487                           "Failed to allocate file handle array");
01488           goto failed;
01489         }
01490       listen_fd = newlisten_fd;
01491       listen_fd[nlisten_fd] = fd;
01492       nlisten_fd++;
01493 
01494       if (!_dbus_string_get_length(retport))
01495         {
01496           /* If the user didn't specify a port, or used 0, then
01497              the kernel chooses a port. After the first address
01498              is bound to, we need to force all remaining addresses
01499              to use the same port */
01500           if (!port || !strcmp(port, "0"))
01501             {
01502               mysockaddr_gen addr;
01503               socklen_t addrlen = sizeof(addr);
01504               char portbuf[10];
01505 
01506               if (getsockname(fd, &addr.Address, &addrlen) == SOCKET_ERROR)
01507                 {
01508                   DBUS_SOCKET_SET_ERRNO ();
01509                   dbus_set_error (error, _dbus_error_from_errno (errno),
01510                                   "Failed to resolve port \"%s:%s\": %s",
01511                                   host ? host : "*", port, _dbus_strerror_from_errno());
01512                   goto failed;
01513                 }
01514               snprintf( portbuf, sizeof( portbuf ) - 1, "%d", addr.AddressIn.sin_port );
01515               if (!_dbus_string_append(retport, portbuf))
01516                 {
01517                   dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01518                   goto failed;
01519                 }
01520 
01521               /* Release current address list & redo lookup */
01522               port = _dbus_string_get_const_data(retport);
01523               freeaddrinfo(ai);
01524               goto redo_lookup_with_port;
01525             }
01526           else
01527             {
01528               if (!_dbus_string_append(retport, port))
01529                 {
01530                     dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL);
01531                     goto failed;
01532                 }
01533             }
01534         }
01535   
01536       tmp = tmp->ai_next;
01537     }
01538   freeaddrinfo(ai);
01539   ai = NULL;
01540 
01541   if (!nlisten_fd)
01542     {
01543       _dbus_win_set_errno (WSAEADDRINUSE);
01544       dbus_set_error (error, _dbus_error_from_errno (errno),
01545                       "Failed to bind socket \"%s:%s\": %s",
01546                       host ? host : "*", port, _dbus_strerror_from_errno ());
01547       return -1;
01548     }
01549 
01550   sscanf(_dbus_string_get_const_data(retport), "%d", &port_num);
01551 
01552   for (i = 0 ; i < nlisten_fd ; i++)
01553     {
01554       if (!_dbus_set_fd_nonblocking (listen_fd[i], error))
01555         {
01556           goto failed;
01557         }
01558     }
01559 
01560   *fds_p = listen_fd;
01561 
01562   return nlisten_fd;
01563 
01564  failed:
01565   if (ai)
01566     freeaddrinfo(ai);
01567   for (i = 0 ; i < nlisten_fd ; i++)
01568     closesocket (listen_fd[i]);
01569   dbus_free(listen_fd);
01570   return -1;
01571 }
01572 
01573 
01581 int
01582 _dbus_accept  (int listen_fd)
01583 {
01584   int client_fd;
01585 
01586  retry:
01587   client_fd = accept (listen_fd, NULL, NULL);
01588 
01589   if (DBUS_SOCKET_IS_INVALID (client_fd))
01590     {
01591       DBUS_SOCKET_SET_ERRNO ();
01592       if (errno == EINTR)
01593         goto retry;
01594     }
01595 
01596   _dbus_verbose ("client fd %d accepted\n", client_fd);
01597   
01598   return client_fd;
01599 }
01600 
01601 
01602 
01603 
01604 dbus_bool_t
01605 _dbus_send_credentials_socket (int            handle,
01606                         DBusError      *error)
01607 {
01608 /* FIXME: for the session bus credentials shouldn't matter (?), but
01609  * for the system bus they are presumably essential. A rough outline
01610  * of a way to implement the credential transfer would be this:
01611  *
01612  * client waits to *read* a byte.
01613  *
01614  * server creates a named pipe with a random name, sends a byte
01615  * contining its length, and its name.
01616  *
01617  * client reads the name, connects to it (using Win32 API).
01618  *
01619  * server waits for connection to the named pipe, then calls
01620  * ImpersonateNamedPipeClient(), notes its now-current credentials,
01621  * calls RevertToSelf(), closes its handles to the named pipe, and
01622  * is done. (Maybe there is some other way to get the SID of a named
01623  * pipe client without having to use impersonation?)
01624  *
01625  * client closes its handles and is done.
01626  * 
01627  * Ralf: Why not sending credentials over the given this connection ?
01628  * Using named pipes makes it impossible to be connected from a unix client.  
01629  *
01630  */
01631   int bytes_written;
01632   DBusString buf; 
01633 
01634   _dbus_string_init_const_len (&buf, "\0", 1);
01635 again:
01636   bytes_written = _dbus_write_socket (handle, &buf, 0, 1 );
01637 
01638   if (bytes_written < 0 && errno == EINTR)
01639     goto again;
01640 
01641   if (bytes_written < 0)
01642     {
01643       dbus_set_error (error, _dbus_error_from_errno (errno),
01644                       "Failed to write credentials byte: %s",
01645                      _dbus_strerror_from_errno ());
01646       return FALSE;
01647     }
01648   else if (bytes_written == 0)
01649     {
01650       dbus_set_error (error, DBUS_ERROR_IO_ERROR,
01651                       "wrote zero bytes writing credentials byte");
01652       return FALSE;
01653     }
01654   else
01655     {
01656       _dbus_assert (bytes_written == 1);
01657       _dbus_verbose ("wrote 1 zero byte, credential sending isn't implemented yet\n");
01658       return TRUE;
01659     }
01660   return TRUE;
01661 }
01662 
01681 dbus_bool_t
01682 _dbus_read_credentials_socket  (int              handle,
01683                                 DBusCredentials *credentials,
01684                                 DBusError       *error)
01685 {
01686   int bytes_read = 0;
01687   DBusString buf;
01688   
01689   // could fail due too OOM
01690   if (_dbus_string_init(&buf))
01691     {
01692       bytes_read = _dbus_read_socket(handle, &buf, 1 );
01693 
01694       if (bytes_read > 0) 
01695         _dbus_verbose("got one zero byte from server");
01696 
01697       _dbus_string_free(&buf);
01698     }
01699 
01700   _dbus_credentials_add_from_current_process (credentials);
01701   _dbus_verbose("FIXME: get faked credentials from current process");
01702 
01703   return TRUE;
01704 }
01705 
01714 dbus_bool_t
01715 _dbus_check_dir_is_private_to_user (DBusString *dir, DBusError *error)
01716 {
01717   /* TODO */
01718   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01719   return TRUE;
01720 }
01721 
01722 
01733 dbus_bool_t
01734 _dbus_concat_dir_and_file (DBusString       *dir,
01735                            const DBusString *next_component)
01736 {
01737   dbus_bool_t dir_ends_in_slash;
01738   dbus_bool_t file_starts_with_slash;
01739 
01740   if (_dbus_string_get_length (dir) == 0 ||
01741       _dbus_string_get_length (next_component) == 0)
01742     return TRUE;
01743 
01744   dir_ends_in_slash =
01745     ('/' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1) ||
01746      '\\' == _dbus_string_get_byte (dir, _dbus_string_get_length (dir) - 1));
01747 
01748   file_starts_with_slash =
01749     ('/' == _dbus_string_get_byte (next_component, 0) ||
01750      '\\' == _dbus_string_get_byte (next_component, 0));
01751 
01752   if (dir_ends_in_slash && file_starts_with_slash)
01753     {
01754       _dbus_string_shorten (dir, 1);
01755     }
01756   else if (!(dir_ends_in_slash || file_starts_with_slash))
01757     {
01758       if (!_dbus_string_append_byte (dir, '\\'))
01759         return FALSE;
01760     }
01761 
01762   return _dbus_string_copy (next_component, 0, dir,
01763                             _dbus_string_get_length (dir));
01764 }
01765 
01766 /*---------------- DBusCredentials ----------------------------------*/
01767 
01775 dbus_bool_t
01776 _dbus_credentials_add_from_user (DBusCredentials  *credentials,
01777                                      const DBusString *username)
01778 {
01779   return _dbus_credentials_add_windows_sid (credentials,
01780                     _dbus_string_get_const_data(username));
01781 }
01782 
01791 dbus_bool_t
01792 _dbus_credentials_add_from_current_process (DBusCredentials *credentials)
01793 {
01794   dbus_bool_t retval = FALSE;
01795   char *sid = NULL;
01796 
01797   if (!_dbus_getsid(&sid))
01798     goto failed;
01799 
01800   if (!_dbus_credentials_add_unix_pid(credentials, _dbus_getpid()))
01801     goto failed;
01802 
01803   if (!_dbus_credentials_add_windows_sid (credentials,sid))
01804     goto failed;
01805 
01806   retval = TRUE;
01807   goto end;
01808 failed:
01809   retval = FALSE;
01810 end:
01811   if (sid)
01812     LocalFree(sid);
01813 
01814   return retval;
01815 }
01816 
01829 dbus_bool_t
01830 _dbus_append_user_from_current_process (DBusString *str)
01831 {
01832   dbus_bool_t retval = FALSE;
01833   char *sid = NULL;
01834 
01835   if (!_dbus_getsid(&sid))
01836     return FALSE;
01837 
01838   retval = _dbus_string_append (str,sid);
01839 
01840   LocalFree(sid);
01841   return retval;
01842 }
01843 
01848 dbus_pid_t
01849 _dbus_getpid (void)
01850 {
01851   return GetCurrentProcessId ();
01852 }
01853 
01855 #define NANOSECONDS_PER_SECOND       1000000000
01856 
01857 #define MICROSECONDS_PER_SECOND      1000000
01858 
01859 #define MILLISECONDS_PER_SECOND      1000
01860 
01861 #define NANOSECONDS_PER_MILLISECOND  1000000
01862 
01863 #define MICROSECONDS_PER_MILLISECOND 1000
01864 
01869 void
01870 _dbus_sleep_milliseconds (int milliseconds)
01871 {
01872   Sleep (milliseconds);
01873 }
01874 
01875 
01882 void
01883 _dbus_get_current_time (long *tv_sec,
01884                         long *tv_usec)
01885 {
01886   FILETIME ft;
01887   dbus_uint64_t time64;
01888 
01889   GetSystemTimeAsFileTime (&ft);
01890 
01891   memcpy (&time64, &ft, sizeof (time64));
01892 
01893   /* Convert from 100s of nanoseconds since 1601-01-01
01894   * to Unix epoch. Yes, this is Y2038 unsafe.
01895   */
01896   time64 -= DBUS_INT64_CONSTANT (116444736000000000);
01897   time64 /= 10;
01898 
01899   if (tv_sec)
01900     *tv_sec = time64 / 1000000;
01901 
01902   if (tv_usec)
01903     *tv_usec = time64 % 1000000;
01904 }
01905 
01906 
01910 void
01911 _dbus_disable_sigpipe (void)
01912 {
01913 }
01914 
01923 dbus_bool_t
01924 _dbus_create_directory (const DBusString *filename,
01925                         DBusError        *error)
01926 {
01927   const char *filename_c;
01928 
01929   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
01930 
01931   filename_c = _dbus_string_get_const_data (filename);
01932 
01933   if (!CreateDirectoryA (filename_c, NULL))
01934     {
01935       if (GetLastError () == ERROR_ALREADY_EXISTS)
01936         return TRUE;
01937 
01938       dbus_set_error (error, DBUS_ERROR_FAILED,
01939                       "Failed to create directory %s: %s\n",
01940                       filename_c, _dbus_strerror_from_errno ());
01941       return FALSE;
01942     }
01943   else
01944     return TRUE;
01945 }
01946 
01947 
01956 dbus_bool_t
01957 _dbus_generate_random_bytes (DBusString *str,
01958                              int         n_bytes)
01959 {
01960   int old_len;
01961   char *p;
01962   HCRYPTPROV hprov;
01963 
01964   old_len = _dbus_string_get_length (str);
01965 
01966   if (!_dbus_string_lengthen (str, n_bytes))
01967     return FALSE;
01968 
01969   p = _dbus_string_get_data_len (str, old_len, n_bytes);
01970 
01971   if (!CryptAcquireContext (&hprov, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
01972     return FALSE;
01973 
01974   if (!CryptGenRandom (hprov, n_bytes, p))
01975     {
01976       CryptReleaseContext (hprov, 0);
01977       return FALSE;
01978     }
01979 
01980   CryptReleaseContext (hprov, 0);
01981 
01982   return TRUE;
01983 }
01984 
01991 const char*
01992 _dbus_get_tmpdir(void)
01993 {
01994   static const char* tmpdir = NULL;
01995   static char buf[1000];
01996 
01997   if (tmpdir == NULL)
01998     {
01999       char *last_slash;
02000 
02001       if (!GetTempPathA (sizeof (buf), buf))
02002         {
02003           _dbus_warn ("GetTempPath failed\n");
02004           _dbus_abort ();
02005         }
02006 
02007       /* Drop terminating backslash or slash */
02008       last_slash = _mbsrchr (buf, '\\');
02009       if (last_slash > buf && last_slash[1] == '\0')
02010         last_slash[0] = '\0';
02011       last_slash = _mbsrchr (buf, '/');
02012       if (last_slash > buf && last_slash[1] == '\0')
02013         last_slash[0] = '\0';
02014 
02015       tmpdir = buf;
02016     }
02017 
02018   _dbus_assert(tmpdir != NULL);
02019 
02020   return tmpdir;
02021 }
02022 
02023 
02032 dbus_bool_t
02033 _dbus_delete_file (const DBusString *filename,
02034                    DBusError        *error)
02035 {
02036   const char *filename_c;
02037 
02038   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02039 
02040   filename_c = _dbus_string_get_const_data (filename);
02041 
02042   if (DeleteFileA (filename_c) == 0)
02043     {
02044       dbus_set_error (error, DBUS_ERROR_FAILED,
02045                       "Failed to delete file %s: %s\n",
02046                       filename_c, _dbus_strerror_from_errno ());
02047       return FALSE;
02048     }
02049   else
02050     return TRUE;
02051 }
02052 
02053 /* Forward declaration of prototype used in next function */
02054 static dbus_bool_t
02055 _dbus_get_install_root(char *prefix, int len);
02056 
02057 /*
02058  * replaces the term DBUS_PREFIX in configure_time_path by the
02059  * current dbus installation directory. On unix this function is a noop
02060  *
02061  * @param configure_time_path
02062  * @return real path
02063  */
02064 const char *
02065 _dbus_replace_install_prefix (const char *configure_time_path)
02066 {
02067 #ifndef DBUS_PREFIX
02068   return configure_time_path;
02069 #else
02070   static char retval[1000];
02071   static char runtime_prefix[1000];
02072   int len = 1000;
02073   int i;
02074 
02075   if (!configure_time_path)
02076     return NULL;
02077 
02078   if ((!_dbus_get_install_root(runtime_prefix, len) ||
02079        strncmp (configure_time_path, DBUS_PREFIX "/",
02080                 strlen (DBUS_PREFIX) + 1))) {
02081      strcat (retval, configure_time_path);
02082      return retval;
02083   }
02084 
02085   strcpy (retval, runtime_prefix);
02086   strcat (retval, configure_time_path + strlen (DBUS_PREFIX) + 1);
02087 
02088   /* Somehow, in some situations, backslashes get collapsed in the string.
02089    * Since windows C library accepts both forward and backslashes as
02090    * path separators, convert all backslashes to forward slashes.
02091    */
02092 
02093   for(i = 0; retval[i] != '\0'; i++) {
02094     if(retval[i] == '\\')
02095       retval[i] = '/';
02096   }
02097   return retval;
02098 #endif
02099 }
02100 
02101 #if !defined (DBUS_DISABLE_ASSERTS) || defined(DBUS_BUILD_TESTS)
02102 
02103 #if defined(_MSC_VER) || defined(DBUS_WINCE)
02104 # ifdef BACKTRACES
02105 #  undef BACKTRACES
02106 # endif
02107 #else
02108 # define BACKTRACES
02109 #endif
02110 
02111 #ifdef BACKTRACES
02112 /*
02113  * Backtrace Generator
02114  *
02115  * Copyright 2004 Eric Poech
02116  * Copyright 2004 Robert Shearman
02117  *
02118  * This library is free software; you can redistribute it and/or
02119  * modify it under the terms of the GNU Lesser General Public
02120  * License as published by the Free Software Foundation; either
02121  * version 2.1 of the License, or (at your option) any later version.
02122  *
02123  * This library is distributed in the hope that it will be useful,
02124  * but WITHOUT ANY WARRANTY; without even the implied warranty of
02125  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
02126  * Lesser General Public License for more details.
02127  *
02128  * You should have received a copy of the GNU Lesser General Public
02129  * License along with this library; if not, write to the Free Software
02130  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
02131  */
02132 
02133 #include <winver.h>
02134 #include <imagehlp.h>
02135 #include <stdio.h>
02136 
02137 #define DPRINTF _dbus_warn
02138 
02139 #ifdef _MSC_VER
02140 #define BOOL int
02141 
02142 #define __i386__
02143 #endif
02144 
02145 //#define MAKE_FUNCPTR(f) static typeof(f) * p##f
02146 
02147 //MAKE_FUNCPTR(StackWalk);
02148 //MAKE_FUNCPTR(SymGetModuleBase);
02149 //MAKE_FUNCPTR(SymFunctionTableAccess);
02150 //MAKE_FUNCPTR(SymInitialize);
02151 //MAKE_FUNCPTR(SymGetSymFromAddr);
02152 //MAKE_FUNCPTR(SymGetModuleInfo);
02153 static BOOL (WINAPI *pStackWalk)(
02154   DWORD MachineType,
02155   HANDLE hProcess,
02156   HANDLE hThread,
02157   LPSTACKFRAME StackFrame,
02158   PVOID ContextRecord,
02159   PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02160   PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02161   PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02162   PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02163 );
02164 #ifdef _WIN64
02165 static DWORD64 (WINAPI *pSymGetModuleBase)(
02166   HANDLE hProcess,
02167   DWORD64 dwAddr
02168 );
02169 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02170   HANDLE hProcess,
02171   DWORD64 AddrBase
02172 );
02173 #else
02174 static DWORD (WINAPI *pSymGetModuleBase)(
02175   HANDLE hProcess,
02176   DWORD dwAddr
02177 );
02178 static PVOID  (WINAPI *pSymFunctionTableAccess)(
02179   HANDLE hProcess,
02180   DWORD AddrBase
02181 );
02182 #endif
02183 static BOOL  (WINAPI *pSymInitialize)(
02184   HANDLE hProcess,
02185   PSTR UserSearchPath,
02186   BOOL fInvadeProcess
02187 );
02188 static BOOL  (WINAPI *pSymGetSymFromAddr)(
02189   HANDLE hProcess,
02190   DWORD Address,
02191   PDWORD Displacement,
02192   PIMAGEHLP_SYMBOL Symbol
02193 );
02194 static BOOL  (WINAPI *pSymGetModuleInfo)(
02195   HANDLE hProcess,
02196   DWORD dwAddr,
02197   PIMAGEHLP_MODULE ModuleInfo
02198 );
02199 static DWORD  (WINAPI *pSymSetOptions)(
02200   DWORD SymOptions
02201 );
02202 
02203 
02204 static BOOL init_backtrace()
02205 {
02206     HMODULE hmodDbgHelp = LoadLibraryA("dbghelp");
02207 /*
02208     #define GETFUNC(x) \
02209     p##x = (typeof(x)*)GetProcAddress(hmodDbgHelp, #x); \
02210     if (!p##x) \
02211     { \
02212         return FALSE; \
02213     }
02214     */
02215 
02216 
02217 //    GETFUNC(StackWalk);
02218 //    GETFUNC(SymGetModuleBase);
02219 //    GETFUNC(SymFunctionTableAccess);
02220 //    GETFUNC(SymInitialize);
02221 //    GETFUNC(SymGetSymFromAddr);
02222 //    GETFUNC(SymGetModuleInfo);
02223 
02224 #define FUNC(x) #x
02225 
02226       pStackWalk = (BOOL  (WINAPI *)(
02227 DWORD MachineType,
02228 HANDLE hProcess,
02229 HANDLE hThread,
02230 LPSTACKFRAME StackFrame,
02231 PVOID ContextRecord,
02232 PREAD_PROCESS_MEMORY_ROUTINE ReadMemoryRoutine,
02233 PFUNCTION_TABLE_ACCESS_ROUTINE FunctionTableAccessRoutine,
02234 PGET_MODULE_BASE_ROUTINE GetModuleBaseRoutine,
02235 PTRANSLATE_ADDRESS_ROUTINE TranslateAddress
02236 ))GetProcAddress (hmodDbgHelp, FUNC(StackWalk));
02237 #ifdef _WIN64
02238     pSymGetModuleBase=(DWORD64  (WINAPI *)(
02239   HANDLE hProcess,
02240   DWORD64 dwAddr
02241 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02242     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02243   HANDLE hProcess,
02244   DWORD64 AddrBase
02245 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02246 #else
02247     pSymGetModuleBase=(DWORD  (WINAPI *)(
02248   HANDLE hProcess,
02249   DWORD dwAddr
02250 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleBase));
02251     pSymFunctionTableAccess=(PVOID  (WINAPI *)(
02252   HANDLE hProcess,
02253   DWORD AddrBase
02254 ))GetProcAddress (hmodDbgHelp, FUNC(SymFunctionTableAccess));
02255 #endif
02256     pSymInitialize = (BOOL  (WINAPI *)(
02257   HANDLE hProcess,
02258   PSTR UserSearchPath,
02259   BOOL fInvadeProcess
02260 ))GetProcAddress (hmodDbgHelp, FUNC(SymInitialize));
02261     pSymGetSymFromAddr = (BOOL  (WINAPI *)(
02262   HANDLE hProcess,
02263   DWORD Address,
02264   PDWORD Displacement,
02265   PIMAGEHLP_SYMBOL Symbol
02266 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetSymFromAddr));
02267     pSymGetModuleInfo = (BOOL  (WINAPI *)(
02268   HANDLE hProcess,
02269   DWORD dwAddr,
02270   PIMAGEHLP_MODULE ModuleInfo
02271 ))GetProcAddress (hmodDbgHelp, FUNC(SymGetModuleInfo));
02272 pSymSetOptions = (DWORD  (WINAPI *)(
02273 DWORD SymOptions
02274 ))GetProcAddress (hmodDbgHelp, FUNC(SymSetOptions));
02275 
02276 
02277     pSymSetOptions(SYMOPT_UNDNAME);
02278 
02279     pSymInitialize(GetCurrentProcess(), NULL, TRUE);
02280 
02281     return TRUE;
02282 }
02283 
02284 static void dump_backtrace_for_thread(HANDLE hThread)
02285 {
02286     STACKFRAME sf;
02287     CONTEXT context;
02288     DWORD dwImageType;
02289 
02290     if (!pStackWalk)
02291         if (!init_backtrace())
02292             return;
02293 
02294     /* can't use this function for current thread as GetThreadContext
02295      * doesn't support getting context from current thread */
02296     if (hThread == GetCurrentThread())
02297         return;
02298 
02299     DPRINTF("Backtrace:\n");
02300 
02301     _DBUS_ZERO(context);
02302     context.ContextFlags = CONTEXT_FULL;
02303 
02304     SuspendThread(hThread);
02305 
02306     if (!GetThreadContext(hThread, &context))
02307     {
02308         DPRINTF("Couldn't get thread context (error %ld)\n", GetLastError());
02309         ResumeThread(hThread);
02310         return;
02311     }
02312 
02313     _DBUS_ZERO(sf);
02314 
02315 #ifdef __i386__
02316     sf.AddrFrame.Offset = context.Ebp;
02317     sf.AddrFrame.Mode = AddrModeFlat;
02318     sf.AddrPC.Offset = context.Eip;
02319     sf.AddrPC.Mode = AddrModeFlat;
02320     dwImageType = IMAGE_FILE_MACHINE_I386;
02321 #elif _M_X64
02322   dwImageType                = IMAGE_FILE_MACHINE_AMD64;
02323   sf.AddrPC.Offset    = context.Rip;
02324   sf.AddrPC.Mode      = AddrModeFlat;
02325   sf.AddrFrame.Offset = context.Rsp;
02326   sf.AddrFrame.Mode   = AddrModeFlat;
02327   sf.AddrStack.Offset = context.Rsp;
02328   sf.AddrStack.Mode   = AddrModeFlat;
02329 #elif _M_IA64
02330   dwImageType                 = IMAGE_FILE_MACHINE_IA64;
02331   sf.AddrPC.Offset    = context.StIIP;
02332   sf.AddrPC.Mode      = AddrModeFlat;
02333   sf.AddrFrame.Offset = context.IntSp;
02334   sf.AddrFrame.Mode   = AddrModeFlat;
02335   sf.AddrBStore.Offset= context.RsBSP;
02336   sf.AddrBStore.Mode  = AddrModeFlat;
02337   sf.AddrStack.Offset = context.IntSp;
02338   sf.AddrStack.Mode   = AddrModeFlat;
02339 #else
02340 # error You need to fill in the STACKFRAME structure for your architecture
02341 #endif
02342 
02343     while (pStackWalk(dwImageType, GetCurrentProcess(),
02344                      hThread, &sf, &context, NULL, pSymFunctionTableAccess,
02345                      pSymGetModuleBase, NULL))
02346     {
02347         BYTE buffer[256];
02348         IMAGEHLP_SYMBOL * pSymbol = (IMAGEHLP_SYMBOL *)buffer;
02349         DWORD dwDisplacement;
02350 
02351         pSymbol->SizeOfStruct = sizeof(IMAGEHLP_SYMBOL);
02352         pSymbol->MaxNameLength = sizeof(buffer) - sizeof(IMAGEHLP_SYMBOL) + 1;
02353 
02354         if (!pSymGetSymFromAddr(GetCurrentProcess(), sf.AddrPC.Offset,
02355                                 &dwDisplacement, pSymbol))
02356         {
02357             IMAGEHLP_MODULE ModuleInfo;
02358             ModuleInfo.SizeOfStruct = sizeof(ModuleInfo);
02359 
02360             if (!pSymGetModuleInfo(GetCurrentProcess(), sf.AddrPC.Offset,
02361                                    &ModuleInfo))
02362                 DPRINTF("1\t%p\n", (void*)sf.AddrPC.Offset);
02363             else
02364                 DPRINTF("2\t%s+0x%lx\n", ModuleInfo.ImageName,
02365                     sf.AddrPC.Offset - ModuleInfo.BaseOfImage);
02366         }
02367         else if (dwDisplacement)
02368             DPRINTF("3\t%s+0x%lx\n", pSymbol->Name, dwDisplacement);
02369         else
02370             DPRINTF("4\t%s\n", pSymbol->Name);
02371     }
02372 
02373     ResumeThread(hThread);
02374 }
02375 
02376 static DWORD WINAPI dump_thread_proc(LPVOID lpParameter)
02377 {
02378     dump_backtrace_for_thread((HANDLE)lpParameter);
02379     return 0;
02380 }
02381 
02382 /* cannot get valid context from current thread, so we have to execute
02383  * backtrace from another thread */
02384 static void dump_backtrace()
02385 {
02386     HANDLE hCurrentThread;
02387     HANDLE hThread;
02388     DWORD dwThreadId;
02389     DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
02390         GetCurrentProcess(), &hCurrentThread, 0, FALSE, DUPLICATE_SAME_ACCESS);
02391     hThread = CreateThread(NULL, 0, dump_thread_proc, (LPVOID)hCurrentThread,
02392         0, &dwThreadId);
02393     WaitForSingleObject(hThread, INFINITE);
02394     CloseHandle(hThread);
02395     CloseHandle(hCurrentThread);
02396 }
02397 #endif
02398 #endif /* asserts or tests enabled */
02399 
02400 #ifdef BACKTRACES
02401 void _dbus_print_backtrace(void)
02402 {
02403   init_backtrace();
02404   dump_backtrace();
02405 }
02406 #else
02407 void _dbus_print_backtrace(void)
02408 {
02409   _dbus_verbose ("  D-Bus not compiled with backtrace support\n");
02410 }
02411 #endif
02412 
02413 static dbus_uint32_t fromAscii(char ascii)
02414 {
02415     if(ascii >= '0' && ascii <= '9')
02416         return ascii - '0';
02417     if(ascii >= 'A' && ascii <= 'F')
02418         return ascii - 'A' + 10;
02419     if(ascii >= 'a' && ascii <= 'f')
02420         return ascii - 'a' + 10;
02421     return 0;    
02422 }
02423 
02424 dbus_bool_t _dbus_read_local_machine_uuid   (DBusGUID         *machine_id,
02425                                              dbus_bool_t       create_if_not_found,
02426                                              DBusError        *error)
02427 {
02428 #ifdef DBUS_WINCE
02429         return TRUE;
02430   // TODO
02431 #else
02432     HW_PROFILE_INFOA info;
02433     char *lpc = &info.szHwProfileGuid[0];
02434     dbus_uint32_t u;
02435 
02436     //  the hw-profile guid lives long enough
02437     if(!GetCurrentHwProfileA(&info))
02438       {
02439         dbus_set_error (error, DBUS_ERROR_NO_MEMORY, NULL); // FIXME
02440         return FALSE;  
02441       }
02442 
02443     // Form: {12340001-4980-1920-6788-123456789012}
02444     lpc++;
02445     // 12340001
02446     u = ((fromAscii(lpc[0]) <<  0) |
02447          (fromAscii(lpc[1]) <<  4) |
02448          (fromAscii(lpc[2]) <<  8) |
02449          (fromAscii(lpc[3]) << 12) |
02450          (fromAscii(lpc[4]) << 16) |
02451          (fromAscii(lpc[5]) << 20) |
02452          (fromAscii(lpc[6]) << 24) |
02453          (fromAscii(lpc[7]) << 28));
02454     machine_id->as_uint32s[0] = u;
02455 
02456     lpc += 9;
02457     // 4980-1920
02458     u = ((fromAscii(lpc[0]) <<  0) |
02459          (fromAscii(lpc[1]) <<  4) |
02460          (fromAscii(lpc[2]) <<  8) |
02461          (fromAscii(lpc[3]) << 12) |
02462          (fromAscii(lpc[5]) << 16) |
02463          (fromAscii(lpc[6]) << 20) |
02464          (fromAscii(lpc[7]) << 24) |
02465          (fromAscii(lpc[8]) << 28));
02466     machine_id->as_uint32s[1] = u;
02467     
02468     lpc += 10;
02469     // 6788-1234
02470     u = ((fromAscii(lpc[0]) <<  0) |
02471          (fromAscii(lpc[1]) <<  4) |
02472          (fromAscii(lpc[2]) <<  8) |
02473          (fromAscii(lpc[3]) << 12) |
02474          (fromAscii(lpc[5]) << 16) |
02475          (fromAscii(lpc[6]) << 20) |
02476          (fromAscii(lpc[7]) << 24) |
02477          (fromAscii(lpc[8]) << 28));
02478     machine_id->as_uint32s[2] = u;
02479     
02480     lpc += 9;
02481     // 56789012
02482     u = ((fromAscii(lpc[0]) <<  0) |
02483          (fromAscii(lpc[1]) <<  4) |
02484          (fromAscii(lpc[2]) <<  8) |
02485          (fromAscii(lpc[3]) << 12) |
02486          (fromAscii(lpc[4]) << 16) |
02487          (fromAscii(lpc[5]) << 20) |
02488          (fromAscii(lpc[6]) << 24) |
02489          (fromAscii(lpc[7]) << 28));
02490     machine_id->as_uint32s[3] = u;
02491 #endif
02492     return TRUE;
02493 }
02494 
02495 static
02496 HANDLE _dbus_global_lock (const char *mutexname)
02497 {
02498   HANDLE mutex;
02499   DWORD gotMutex;
02500 
02501   mutex = CreateMutexA( NULL, FALSE, mutexname );
02502   if( !mutex )
02503     {
02504       return FALSE;
02505     }
02506 
02507    gotMutex = WaitForSingleObject( mutex, INFINITE );
02508    switch( gotMutex )
02509      {
02510        case WAIT_ABANDONED:
02511                ReleaseMutex (mutex);
02512                CloseHandle (mutex);
02513                return 0;
02514        case WAIT_FAILED:
02515        case WAIT_TIMEOUT:
02516                return 0;
02517      }
02518 
02519    return mutex;
02520 }
02521 
02522 static
02523 void _dbus_global_unlock (HANDLE mutex)
02524 {
02525   ReleaseMutex (mutex);
02526   CloseHandle (mutex); 
02527 }
02528 
02529 // for proper cleanup in dbus-daemon
02530 static HANDLE hDBusDaemonMutex = NULL;
02531 static HANDLE hDBusSharedMem = NULL;
02532 // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02533 static const char *cUniqueDBusInitMutex = "UniqueDBusInitMutex";
02534 // sync _dbus_get_autolaunch_address
02535 static const char *cDBusAutolaunchMutex = "DBusAutolaunchMutex";
02536 // mutex to determine if dbus-daemon is already started (per user)
02537 static const char *cDBusDaemonMutex = "DBusDaemonMutex";
02538 // named shm for dbus adress info (per user)
02539 #ifdef _DEBUG
02540 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfoDebug";
02541 #else
02542 static const char *cDBusDaemonAddressInfo = "DBusDaemonAddressInfo";
02543 #endif
02544 
02545 
02546 void
02547 _dbus_daemon_publish_session_bus_address (const char* address)
02548 {
02549   HANDLE lock;
02550   char *shared_addr = NULL;
02551   DWORD ret;
02552 
02553   _dbus_assert (address);
02554   // before _dbus_global_lock to keep correct lock/release order
02555   hDBusDaemonMutex = CreateMutexA( NULL, FALSE, cDBusDaemonMutex );
02556   ret = WaitForSingleObject( hDBusDaemonMutex, 1000 );
02557   if ( ret != WAIT_OBJECT_0 ) {
02558     _dbus_warn("Could not lock mutex %s (return code %ld). daemon already running? Bus address not published.\n", cDBusDaemonMutex, ret );
02559     return;
02560   }
02561 
02562   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02563   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02564 
02565   // create shm
02566   hDBusSharedMem = CreateFileMappingA( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
02567                                       0, strlen( address ) + 1, cDBusDaemonAddressInfo );
02568   _dbus_assert( hDBusSharedMem );
02569 
02570   shared_addr = MapViewOfFile( hDBusSharedMem, FILE_MAP_WRITE, 0, 0, 0 );
02571 
02572   _dbus_assert (shared_addr);
02573 
02574   strcpy( shared_addr, address);
02575 
02576   // cleanup
02577   UnmapViewOfFile( shared_addr );
02578 
02579   _dbus_global_unlock( lock );
02580 }
02581 
02582 void
02583 _dbus_daemon_unpublish_session_bus_address (void)
02584 {
02585   HANDLE lock;
02586 
02587   // sync _dbus_daemon_publish_session_bus_address, _dbus_daemon_unpublish_session_bus_address and _dbus_daemon_already_runs
02588   lock = _dbus_global_lock( cUniqueDBusInitMutex );
02589 
02590   CloseHandle( hDBusSharedMem );
02591 
02592   hDBusSharedMem = NULL;
02593 
02594   ReleaseMutex( hDBusDaemonMutex );
02595 
02596   CloseHandle( hDBusDaemonMutex );
02597 
02598   hDBusDaemonMutex = NULL;
02599 
02600   _dbus_global_unlock( lock );
02601 }
02602 
02603 static dbus_bool_t
02604 _dbus_get_autolaunch_shm (DBusString *address)
02605 {
02606   HANDLE sharedMem;
02607   char *shared_addr;
02608   int i;
02609 
02610   // read shm
02611   for(i=0;i<20;++i) {
02612       // we know that dbus-daemon is available, so we wait until shm is available
02613       sharedMem = OpenFileMappingA( FILE_MAP_READ, FALSE, cDBusDaemonAddressInfo );
02614       if( sharedMem == 0 )
02615           Sleep( 100 );
02616       if ( sharedMem != 0)
02617           break;
02618   }
02619 
02620   if( sharedMem == 0 )
02621       return FALSE;
02622 
02623   shared_addr = MapViewOfFile( sharedMem, FILE_MAP_READ, 0, 0, 0 );
02624 
02625   if( !shared_addr )
02626       return FALSE;
02627 
02628   _dbus_string_init( address );
02629 
02630   _dbus_string_append( address, shared_addr );
02631 
02632   // cleanup
02633   UnmapViewOfFile( shared_addr );
02634 
02635   CloseHandle( sharedMem );
02636 
02637   return TRUE;
02638 }
02639 
02640 static dbus_bool_t
02641 _dbus_daemon_already_runs (DBusString *address)
02642 {
02643   HANDLE lock;
02644   HANDLE daemon;
02645   dbus_bool_t bRet = 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   // do checks
02651   daemon = CreateMutexA( NULL, FALSE, cDBusDaemonMutex );
02652   if(WaitForSingleObject( daemon, 10 ) != WAIT_TIMEOUT)
02653     {
02654       ReleaseMutex (daemon);
02655       CloseHandle (daemon);
02656 
02657       _dbus_global_unlock( lock );
02658       return FALSE;
02659     }
02660 
02661   // read shm
02662   bRet = _dbus_get_autolaunch_shm( address );
02663 
02664   // cleanup
02665   CloseHandle ( daemon );
02666 
02667   _dbus_global_unlock( lock );
02668 
02669   return bRet;
02670 }
02671 
02672 dbus_bool_t
02673 _dbus_get_autolaunch_address (DBusString *address, 
02674                               DBusError *error)
02675 {
02676   HANDLE mutex;
02677   STARTUPINFOA si;
02678   PROCESS_INFORMATION pi;
02679   dbus_bool_t retval = FALSE;
02680   LPSTR lpFile;
02681   char dbus_exe_path[MAX_PATH];
02682   char dbus_args[MAX_PATH * 2];
02683   const char * daemon_name = DBUS_DAEMON_NAME ".exe";
02684 
02685   mutex = _dbus_global_lock ( cDBusAutolaunchMutex );
02686 
02687   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02688 
02689   if (_dbus_daemon_already_runs(address))
02690     {
02691         _dbus_verbose("found already running dbus daemon\n");
02692         retval = TRUE;
02693         goto out;
02694     }
02695 
02696   if (!SearchPathA(NULL, daemon_name, NULL, sizeof(dbus_exe_path), dbus_exe_path, &lpFile))
02697     {
02698       printf ("please add the path to %s to your PATH environment variable\n", daemon_name);
02699       printf ("or start the daemon manually\n\n");
02700       goto out;
02701     }
02702 
02703   // Create process
02704   ZeroMemory( &si, sizeof(si) );
02705   si.cb = sizeof(si);
02706   ZeroMemory( &pi, sizeof(pi) );
02707 
02708   _snprintf(dbus_args, sizeof(dbus_args) - 1, "\"%s\" %s", dbus_exe_path,  " --session");
02709 
02710 //  argv[i] = "--config-file=bus\\session.conf";
02711 //  printf("create process \"%s\" %s\n", dbus_exe_path, dbus_args);
02712   if(CreateProcessA(dbus_exe_path, dbus_args, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &si, &pi))
02713     {
02714       CloseHandle (pi.hThread);
02715       CloseHandle (pi.hProcess);
02716       retval = _dbus_get_autolaunch_shm( address );
02717     }
02718   
02719   if (retval == FALSE)
02720     dbus_set_error_const (error, DBUS_ERROR_FAILED, "Failed to launch dbus-daemon");
02721 
02722 out:
02723   if (retval)
02724     _DBUS_ASSERT_ERROR_IS_CLEAR (error);
02725   else
02726     _DBUS_ASSERT_ERROR_IS_SET (error);
02727   
02728   _dbus_global_unlock (mutex);
02729 
02730   return retval;
02731  }
02732 
02733 
02740 dbus_bool_t
02741 _dbus_make_file_world_readable(const DBusString *filename,
02742                                DBusError *error)
02743 {
02744   // TODO
02745   return TRUE;
02746 }
02747 
02754 static const char *
02755 _dbus_windows_get_datadir (void)
02756 {
02757         return _dbus_replace_install_prefix(DBUS_DATADIR);
02758 }
02759 
02760 #undef DBUS_DATADIR
02761 #define DBUS_DATADIR _dbus_windows_get_datadir ()
02762 
02763 
02764 #define DBUS_STANDARD_SESSION_SERVICEDIR "/dbus-1/services"
02765 #define DBUS_STANDARD_SYSTEM_SERVICEDIR "/dbus-1/system-services"
02766 
02783 dbus_bool_t 
02784 _dbus_get_standard_session_servicedirs (DBusList **dirs)
02785 {
02786   const char *common_progs;
02787   DBusString servicedir_path;
02788 
02789   if (!_dbus_string_init (&servicedir_path))
02790     return FALSE;
02791 
02792 #ifdef DBUS_WINCE
02793   {
02794     /* On Windows CE, we adjust datadir dynamically to installation location.  */
02795     const char *data_dir = _dbus_getenv ("DBUS_DATADIR");
02796 
02797     if (data_dir != NULL)
02798       {
02799         if (!_dbus_string_append (&servicedir_path, data_dir))
02800           goto oom;
02801         
02802         if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
02803           goto oom;
02804       }
02805   }
02806 #else
02807   if (!_dbus_string_append (&servicedir_path, DBUS_DATADIR))
02808     goto oom;
02809 
02810   if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
02811     goto oom;
02812 #endif
02813 
02814   common_progs = _dbus_getenv ("CommonProgramFiles");
02815 
02816   if (common_progs != NULL)
02817     {
02818       if (!_dbus_string_append (&servicedir_path, common_progs))
02819         goto oom;
02820 
02821       if (!_dbus_string_append (&servicedir_path, _DBUS_PATH_SEPARATOR))
02822         goto oom;
02823     }
02824 
02825   if (!_dbus_split_paths_and_append (&servicedir_path, 
02826                                DBUS_STANDARD_SESSION_SERVICEDIR, 
02827                                dirs))
02828     goto oom;
02829 
02830   _dbus_string_free (&servicedir_path);  
02831   return TRUE;
02832 
02833  oom:
02834   _dbus_string_free (&servicedir_path);
02835   return FALSE;
02836 }
02837 
02856 dbus_bool_t
02857 _dbus_get_standard_system_servicedirs (DBusList **dirs)
02858 {
02859   *dirs = NULL;
02860   return TRUE;
02861 }
02862 
02863 _DBUS_DEFINE_GLOBAL_LOCK (atomic);
02864 
02872 dbus_int32_t
02873 _dbus_atomic_inc (DBusAtomic *atomic)
02874 {
02875   // +/- 1 is needed here!
02876   // no volatile argument with mingw
02877   return InterlockedIncrement (&atomic->value) - 1;
02878 }
02879 
02887 dbus_int32_t
02888 _dbus_atomic_dec (DBusAtomic *atomic)
02889 {
02890   // +/- 1 is needed here!
02891   // no volatile argument with mingw
02892   return InterlockedDecrement (&atomic->value) + 1;
02893 }
02894 
02902 void
02903 _dbus_flush_caches (void)
02904 {
02905 }
02906 
02913 dbus_bool_t
02914 _dbus_get_is_errno_eagain_or_ewouldblock (void)
02915 {
02916   return errno == WSAEWOULDBLOCK;
02917 }
02918 
02926 static dbus_bool_t
02927 _dbus_get_install_root(char *prefix, int len)
02928 {
02929     //To find the prefix, we cut the filename and also \bin\ if present
02930     char* p = 0;
02931     int i;
02932     DWORD pathLength;
02933     char *lastSlash;
02934     SetLastError( 0 );
02935     pathLength = GetModuleFileNameA(_dbus_win_get_dll_hmodule(), prefix, len);
02936     if ( pathLength == 0 || GetLastError() != 0 ) {
02937         *prefix = '\0';
02938         return FALSE;
02939     }
02940     lastSlash = _mbsrchr(prefix, '\\');
02941     if (lastSlash == NULL) {
02942         *prefix = '\0';
02943         return FALSE;
02944     }
02945     //cut off binary name
02946     lastSlash[1] = 0;
02947 
02948     //cut possible "\\bin"
02949 
02950     //this fails if we are in a double-byte system codepage and the
02951     //folder's name happens to end with the *bytes*
02952     //"\\bin"... (I.e. the second byte of some Han character and then
02953     //the Latin "bin", but that is not likely I think...
02954     if (lastSlash - prefix >= 4 && strnicmp(lastSlash - 4, "\\bin", 4) == 0)
02955         lastSlash[-3] = 0;
02956     else if (lastSlash - prefix >= 10 && strnicmp(lastSlash - 10, "\\bin\\debug", 10) == 0)
02957         lastSlash[-9] = 0;
02958     else if (lastSlash - prefix >= 12 && strnicmp(lastSlash - 12, "\\bin\\release", 12) == 0)
02959         lastSlash[-11] = 0;
02960 
02961     return TRUE;
02962 }
02963 
02977 dbus_bool_t 
02978 _dbus_get_config_file_name(DBusString *config_file, char *s)
02979 {
02980   char path[MAX_PATH*2];
02981   int path_size = sizeof(path);
02982 
02983   if (!_dbus_get_install_root(path,path_size))
02984     return FALSE;
02985 
02986   if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
02987     return FALSE;
02988   strcat(path,"etc\\");
02989   strcat(path,s);
02990   if (_dbus_file_exists(path)) 
02991     {
02992       // find path from executable 
02993       if (!_dbus_string_append (config_file, path))
02994         return FALSE;
02995     }
02996   else 
02997     {
02998       if (!_dbus_get_install_root(path,path_size))
02999         return FALSE;
03000       if(strlen(s) + 11 + strlen(path) > sizeof(path)-2)
03001         return FALSE;
03002       strcat(path,"etc\\dbus-1\\");
03003       strcat(path,s);
03004   
03005       if (_dbus_file_exists(path)) 
03006         {
03007           if (!_dbus_string_append (config_file, path))
03008             return FALSE;
03009         }
03010       else
03011         {
03012           if (!_dbus_get_install_root(path,path_size))
03013             return FALSE;
03014           if(strlen(s) + 4 + strlen(path) > sizeof(path)-2)
03015             return FALSE;
03016           strcat(path,"bus\\");
03017           strcat(path,s);
03018           
03019           if (_dbus_file_exists(path)) 
03020             {
03021               if (!_dbus_string_append (config_file, path))
03022                 return FALSE;
03023             }
03024         }
03025     }
03026   return TRUE;
03027 }    
03028 
03037 dbus_bool_t
03038 _dbus_append_system_config_file (DBusString *str)
03039 {
03040   return _dbus_get_config_file_name(str, "system.conf");
03041 }
03042 
03049 dbus_bool_t
03050 _dbus_append_session_config_file (DBusString *str)
03051 {
03052   return _dbus_get_config_file_name(str, "session.conf");
03053 }
03054 
03055 /* See comment in dbus-sysdeps-unix.c */
03056 dbus_bool_t
03057 _dbus_lookup_session_address (dbus_bool_t *supported,
03058                               DBusString  *address,
03059                               DBusError   *error)
03060 {
03061   /* Probably fill this in with something based on COM? */
03062   *supported = FALSE;
03063   return TRUE;
03064 }
03065 
03079 dbus_bool_t
03080 _dbus_append_keyring_directory_for_credentials (DBusString      *directory,
03081                                                 DBusCredentials *credentials)
03082 {
03083   DBusString homedir;
03084   DBusString dotdir;
03085   dbus_uid_t uid;
03086   const char *homepath;
03087   const char *homedrive;
03088 
03089   _dbus_assert (credentials != NULL);
03090   _dbus_assert (!_dbus_credentials_are_anonymous (credentials));
03091   
03092   if (!_dbus_string_init (&homedir))
03093     return FALSE;
03094 
03095   homedrive = _dbus_getenv("HOMEDRIVE");
03096   if (homedrive != NULL && *homedrive != '\0')
03097     {
03098       _dbus_string_append(&homedir,homedrive);
03099     }
03100 
03101   homepath = _dbus_getenv("HOMEPATH");
03102   if (homepath != NULL && *homepath != '\0')
03103     {
03104       _dbus_string_append(&homedir,homepath);
03105     }
03106   
03107 #ifdef DBUS_BUILD_TESTS
03108   {
03109     const char *override;
03110     
03111     override = _dbus_getenv ("DBUS_TEST_HOMEDIR");
03112     if (override != NULL && *override != '\0')
03113       {
03114         _dbus_string_set_length (&homedir, 0);
03115         if (!_dbus_string_append (&homedir, override))
03116           goto failed;
03117 
03118         _dbus_verbose ("Using fake homedir for testing: %s\n",
03119                        _dbus_string_get_const_data (&homedir));
03120       }
03121     else
03122       {
03123         static dbus_bool_t already_warned = FALSE;
03124         if (!already_warned)
03125           {
03126             _dbus_warn ("Using your real home directory for testing, set DBUS_TEST_HOMEDIR to avoid\n");
03127             already_warned = TRUE;
03128           }
03129       }
03130   }
03131 #endif
03132 
03133 #ifdef DBUS_WINCE
03134   /* It's not possible to create a .something directory in Windows CE
03135      using the file explorer.  */
03136 #define KEYRING_DIR "dbus-keyrings"
03137 #else
03138 #define KEYRING_DIR ".dbus-keyrings"
03139 #endif
03140 
03141   _dbus_string_init_const (&dotdir, KEYRING_DIR);
03142   if (!_dbus_concat_dir_and_file (&homedir,
03143                                   &dotdir))
03144     goto failed;
03145   
03146   if (!_dbus_string_copy (&homedir, 0,
03147                           directory, _dbus_string_get_length (directory))) {
03148     goto failed;
03149   }
03150 
03151   _dbus_string_free (&homedir);
03152   return TRUE;
03153   
03154  failed: 
03155   _dbus_string_free (&homedir);
03156   return FALSE;
03157 }
03158 
03164 dbus_bool_t 
03165 _dbus_file_exists (const char *file)
03166 {
03167   DWORD attributes = GetFileAttributesA (file);
03168 
03169   if (attributes != INVALID_FILE_ATTRIBUTES && GetLastError() != ERROR_PATH_NOT_FOUND)
03170     return TRUE;
03171   else
03172     return FALSE;  
03173 }
03174 
03182 const char*
03183 _dbus_strerror (int error_number)
03184 {
03185 #ifdef DBUS_WINCE
03186   // TODO
03187   return "unknown";
03188 #else
03189   const char *msg;
03190 
03191   switch (error_number)
03192     {
03193     case WSAEINTR:
03194       return "Interrupted function call";
03195     case WSAEACCES:
03196       return "Permission denied";
03197     case WSAEFAULT:
03198       return "Bad address";
03199     case WSAEINVAL:
03200       return "Invalid argument";
03201     case WSAEMFILE:
03202       return "Too many open files";
03203     case WSAEWOULDBLOCK:
03204       return "Resource temporarily unavailable";
03205     case WSAEINPROGRESS:
03206       return "Operation now in progress";
03207     case WSAEALREADY:
03208       return "Operation already in progress";
03209     case WSAENOTSOCK:
03210       return "Socket operation on nonsocket";
03211     case WSAEDESTADDRREQ:
03212       return "Destination address required";
03213     case WSAEMSGSIZE:
03214       return "Message too long";
03215     case WSAEPROTOTYPE:
03216       return "Protocol wrong type for socket";
03217     case WSAENOPROTOOPT:
03218       return "Bad protocol option";
03219     case WSAEPROTONOSUPPORT:
03220       return "Protocol not supported";
03221     case WSAESOCKTNOSUPPORT:
03222       return "Socket type not supported";
03223     case WSAEOPNOTSUPP:
03224       return "Operation not supported";
03225     case WSAEPFNOSUPPORT:
03226       return "Protocol family not supported";
03227     case WSAEAFNOSUPPORT:
03228       return "Address family not supported by protocol family";
03229     case WSAEADDRINUSE:
03230       return "Address already in use";
03231     case WSAEADDRNOTAVAIL:
03232       return "Cannot assign requested address";
03233     case WSAENETDOWN:
03234       return "Network is down";
03235     case WSAENETUNREACH:
03236       return "Network is unreachable";
03237     case WSAENETRESET:
03238       return "Network dropped connection on reset";
03239     case WSAECONNABORTED:
03240       return "Software caused connection abort";
03241     case WSAECONNRESET:
03242       return "Connection reset by peer";
03243     case WSAENOBUFS:
03244       return "No buffer space available";
03245     case WSAEISCONN:
03246       return "Socket is already connected";
03247     case WSAENOTCONN:
03248       return "Socket is not connected";
03249     case WSAESHUTDOWN:
03250       return "Cannot send after socket shutdown";
03251     case WSAETIMEDOUT:
03252       return "Connection timed out";
03253     case WSAECONNREFUSED:
03254       return "Connection refused";
03255     case WSAEHOSTDOWN:
03256       return "Host is down";
03257     case WSAEHOSTUNREACH:
03258       return "No route to host";
03259     case WSAEPROCLIM:
03260       return "Too many processes";
03261     case WSAEDISCON:
03262       return "Graceful shutdown in progress";
03263     case WSATYPE_NOT_FOUND:
03264       return "Class type not found";
03265     case WSAHOST_NOT_FOUND:
03266       return "Host not found";
03267     case WSATRY_AGAIN:
03268       return "Nonauthoritative host not found";
03269     case WSANO_RECOVERY:
03270       return "This is a nonrecoverable error";
03271     case WSANO_DATA:
03272       return "Valid name, no data record of requested type";
03273     case WSA_INVALID_HANDLE:
03274       return "Specified event object handle is invalid";
03275     case WSA_INVALID_PARAMETER:
03276       return "One or more parameters are invalid";
03277     case WSA_IO_INCOMPLETE:
03278       return "Overlapped I/O event object not in signaled state";
03279     case WSA_IO_PENDING:
03280       return "Overlapped operations will complete later";
03281     case WSA_NOT_ENOUGH_MEMORY:
03282       return "Insufficient memory available";
03283     case WSA_OPERATION_ABORTED:
03284       return "Overlapped operation aborted";
03285 #ifdef WSAINVALIDPROCTABLE
03286 
03287     case WSAINVALIDPROCTABLE:
03288       return "Invalid procedure table from service provider";
03289 #endif
03290 #ifdef WSAINVALIDPROVIDER
03291 
03292     case WSAINVALIDPROVIDER:
03293       return "Invalid service provider version number";
03294 #endif
03295 #ifdef WSAPROVIDERFAILEDINIT
03296 
03297     case WSAPROVIDERFAILEDINIT:
03298       return "Unable to initialize a service provider";
03299 #endif
03300 
03301     case WSASYSCALLFAILURE:
03302       return "System call failure";
03303     }
03304   msg = strerror (error_number);
03305   if (msg == NULL)
03306     msg = "unknown";
03307 
03308   return msg;
03309 #endif //DBUS_WINCE
03310 }
03311 
03319 void
03320 _dbus_win_set_error_from_win_error (DBusError *error,
03321                                     int        code)
03322 {
03323   char *msg;
03324 
03325   /* As we want the English message, use the A API */
03326   FormatMessageA (FORMAT_MESSAGE_ALLOCATE_BUFFER |
03327                   FORMAT_MESSAGE_IGNORE_INSERTS |
03328                   FORMAT_MESSAGE_FROM_SYSTEM,
03329                   NULL, code, MAKELANGID (LANG_ENGLISH, SUBLANG_ENGLISH_US),
03330                   (LPSTR) &msg, 0, NULL);
03331   if (msg)
03332     {
03333       char *msg_copy;
03334 
03335       msg_copy = dbus_malloc (strlen (msg));
03336       strcpy (msg_copy, msg);
03337       LocalFree (msg);
03338 
03339       dbus_set_error (error, "win32.error", "%s", msg_copy);
03340     }
03341   else
03342     dbus_set_error (error, "win32.error", "Unknown error code %d or FormatMessage failed", code);
03343 }
03344 
03345 void
03346 _dbus_win_warn_win_error (const char *message,
03347                           int         code)
03348 {
03349   DBusError error;
03350 
03351   dbus_error_init (&error);
03352   _dbus_win_set_error_from_win_error (&error, code);
03353   _dbus_warn ("%s: %s\n", message, error.message);
03354   dbus_error_free (&error);
03355 }
03356 
03364 dbus_bool_t
03365 _dbus_delete_directory (const DBusString *filename,
03366                         DBusError        *error)
03367 {
03368   const char *filename_c;
03369 
03370   _DBUS_ASSERT_ERROR_IS_CLEAR (error);
03371 
03372   filename_c = _dbus_string_get_const_data (filename);
03373 
03374   if (RemoveDirectoryA (filename_c) == 0)
03375     {
03376       char *emsg = _dbus_win_error_string (GetLastError ());
03377       dbus_set_error (error, _dbus_win_error_from_last_error (),
03378                       "Failed to remove directory %s: %s",
03379                       filename_c, emsg);
03380       _dbus_win_free_error_string (emsg);
03381       return FALSE;
03382     }
03383 
03384   return TRUE;
03385 }
03386 
03388 /* tests in dbus-sysdeps-util.c */
03389