reactos/tools/rbuild/backend/msvc/genguid.cpp

   1 /*
   2  *  Based on the genguid utility for WINE and ReactOS
   3  *
   4  *  Copyright 2003 Jonathan Wilson
   5  *  Copyright 2005 Steven Edwards
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  */
  22
  23
  24 #include "msvc.h"
  25 #include <string>
  26
  27 using std::string;
  28
  29 #ifdef _WIN32
  30 #include <objbase.h>
  31 #include <stdio.h>
  32
  33 typedef HRESULT _stdcall CoInitializeFunc ( PVOID );
  34 typedef void _stdcall CoUninitializeFunc ( void );
  35 typedef HRESULT _stdcall CoCreateGuidFunc ( GUID* );
  36
  37 static CoInitializeFunc *pCoInitialize = NULL;
  38 static CoUninitializeFunc *pCoUninitialize = NULL;
  39 static CoCreateGuidFunc *pCoCreateGuid = NULL;
  40
  41
  42 std::string
  43 MSVCBackend::_gen_guid()
  44 {
  45         GUID m_guid;
  46         HRESULT result;
  47         bool good_guid = false;
  48         char* guid;
  49
  50         // Load ole32. We will need it later on
  51         HMODULE olelib = LoadLibrary ( "ole32.dll" );
  52         if ( olelib != NULL )
  53         {
  54                 pCoInitialize = (CoInitializeFunc *)GetProcAddress( olelib, "CoInitialize" );
  55                 pCoUninitialize = (CoUninitializeFunc *)GetProcAddress( olelib, "CoUninitialize" );
  56                 pCoCreateGuid = (CoCreateGuidFunc *)GetProcAddress( olelib, "CoCreateGuid" );
  57                 if ( !pCoInitialize || !pCoUninitialize || !pCoCreateGuid )
  58                         printf ( "Missing exports from ole32.dll\n" );
  59                 else
  60                 {
  61                         if (pCoInitialize(NULL) != S_OK)
  62                                 printf("Unable to initalize OLE libraries\n");
  63                         else
  64                         {
  65                                 result = pCoCreateGuid(&m_guid);
  66                                 if (result != S_OK)
  67                                         printf("Unable to create GUID\n");
  68                                 else
  69                                         good_guid = true;
  70                                 pCoUninitialize();
  71                         }
  72                 }
  73                 FreeLibrary ( olelib );
  74         }
  75         if ( !good_guid )
  76         {
  77                 // TODO FIXME - fall-back to random #'s
  78         }
  79         const char* strfmt = "%08lX-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X";
  80         sprintf(guid, strfmt,m_guid.Data1,m_guid.Data2,m_guid.Data3,m_guid.Data4[0],
  81                 m_guid.Data4[1],m_guid.Data4[2],m_guid.Data4[3],m_guid.Data4[4],m_guid.Data4[5],
  82                 m_guid.Data4[6],m_guid.Data4[7],m_guid.Data1,m_guid.Data2,m_guid.Data3,m_guid.Data4[0],
  83                 m_guid.Data4[1],m_guid.Data4[2],m_guid.Data4[3],m_guid.Data4[4],m_guid.Data4[5],
  84                 m_guid.Data4[6],m_guid.Data4[7]);
  85
  86         return guid;
  87 }
  88
  89 #else /* Linux, etc */
  90
  91 std::string
  92 MSVCBackend::_gen_guid()
  93 {
  94 }
  95 #endif /* WIN32/Linux */