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 #ifdef _WIN32
  24 #include <objbase.h>
  25 #include <stdio.h>
  26
  27 typedef HRESULT _stdcall CoInitializeFunc ( PVOID );
  28 typedef void _stdcall CoUninitializeFunc ( void );
  29 typedef HRESULT _stdcall CoCreateGuidFunc ( GUID* );
  30
  31 static CoInitializeFunc *pCoInitialize = NULL;
  32 static CoUninitializeFunc *pCoUninitialize = NULL;
  33 static CoCreateGuidFunc *pCoCreateGuid = NULL;
  34
  35 void gen_guid()
  36 {
  37         GUID m_guid;
  38         HRESULT result;
  39         bool good_guid = false;
  40
  41         // Load ole32. We will need it later on
  42         HMODULE olelib = LoadLibrary ( "ole32.dll" );
  43         if ( olelib != NULL )
  44         {
  45                 pCoInitialize = (CoInitializeFunc *)GetProcAddress( olelib, "CoInitialize" );
  46                 pCoUninitialize = (CoUninitializeFunc *)GetProcAddress( olelib, "CoUninitialize" );
  47                 pCoCreateGuid = (CoCreateGuidFunc *)GetProcAddress( olelib, "CoCreateGuid" );
  48                 if ( !pCoInitialize || !pCoUninitialize || !pCoCreateGuid )
  49                         printf ( "Missing exports from ole32.dll\n" );
  50                 else
  51                 {
  52                         if (pCoInitialize(NULL) != S_OK)
  53                                 printf("Unable to initalize OLE libraries\n");
  54                         else
  55                         {
  56                                 result = pCoCreateGuid(&m_guid);
  57                                 if (result != S_OK)
  58                                         printf("Unable to create GUID\n");
  59                                 else
  60                                         good_guid = true;
  61                                 pCoUninitialize();
  62                         }
  63                 }
  64                 FreeLibrary ( olelib );
  65         }
  66         if ( !good_guid )
  67         {
  68                 // TODO FIXME - fall-back to random #'s
  69         }
  70         const char* strfmt = "%08lX-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X\r\n";
  71         printf(strfmt,m_guid.Data1,m_guid.Data2,m_guid.Data3,m_guid.Data4[0],
  72                 m_guid.Data4[1],m_guid.Data4[2],m_guid.Data4[3],m_guid.Data4[4],m_guid.Data4[5],
  73                 m_guid.Data4[6],m_guid.Data4[7],m_guid.Data1,m_guid.Data2,m_guid.Data3,m_guid.Data4[0],
  74                 m_guid.Data4[1],m_guid.Data4[2],m_guid.Data4[3],m_guid.Data4[4],m_guid.Data4[5],
  75                 m_guid.Data4[6],m_guid.Data4[7]);
  76 }
  77
  78 #else /* Linux, etc */
  79 void gen_guid()
  80 {
  81 }
  82 #endif /* WIN32/Linux */