dll/win32/fusion/fusion.c

   1 /*
   2  * Implementation of the Fusion API
   3  *
   4  * Copyright 2008 James Hawkins
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "fusion.h"
  30 #include "wine/debug.h"
  31 #include "wine/unicode.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(fusion);
  34
  35 /******************************************************************
  36  *  ClearDownloadCache   (FUSION.@)
  37  */
  38 HRESULT WINAPI ClearDownloadCache(void)
  39 {
  40     FIXME("stub!\n");
  41     return E_NOTIMPL;
  42 }
  43
  44 /******************************************************************
  45  *  CreateInstallReferenceEnum   (FUSION.@)
  46  */
  47 HRESULT WINAPI CreateInstallReferenceEnum(IInstallReferenceEnum **ppRefEnum,
  48                                           IAssemblyName *pName, DWORD dwFlags,
  49                                           LPVOID pvReserved)
  50 {
  51     FIXME("(%p, %p, %08x, %p) stub!\n", ppRefEnum, pName, dwFlags, pvReserved);
  52     return E_NOTIMPL;
  53 }
  54
  55 static HRESULT (WINAPI *pGetCORVersion)(LPWSTR pbuffer, DWORD cchBuffer,
  56                                         DWORD *dwLength);
  57
  58 static HRESULT get_corversion(LPWSTR version, DWORD size)
  59 {
  60     HMODULE hmscoree;
  61     HRESULT hr;
  62     DWORD len;
  63
  64     hmscoree = LoadLibraryA("mscoree.dll");
  65     if (!hmscoree)
  66         return E_FAIL;
  67
  68     pGetCORVersion = (void *)GetProcAddress(hmscoree, "GetCORVersion");
  69     if (!pGetCORVersion)
  70         return E_FAIL;
  71
  72     hr = pGetCORVersion(version, size, &len);
  73
  74     FreeLibrary(hmscoree);
  75     return hr;
  76 }
  77
  78 /******************************************************************
  79  *  GetCachePath   (FUSION.@)
  80  */
  81 HRESULT WINAPI GetCachePath(ASM_CACHE_FLAGS dwCacheFlags, LPWSTR pwzCachePath,
  82                             PDWORD pcchPath)
  83 {
  84     WCHAR path[MAX_PATH];
  85     WCHAR windir[MAX_PATH];
  86     WCHAR version[MAX_PATH];
  87     DWORD len;
  88     HRESULT hr = S_OK;
  89
  90     static const WCHAR backslash[] = {'\\',0};
  91     static const WCHAR assembly[] = {'a','s','s','e','m','b','l','y',0};
  92     static const WCHAR gac[] = {'G','A','C',0};
  93     static const WCHAR nativeimg[] = {
  94         'N','a','t','i','v','e','I','m','a','g','e','s','_',0};
  95 #ifdef _WIN64
  96     static const WCHAR zapfmt[] = {'%','s','\\','%','s','\\','%','s','%','s','_','6','4',0};
  97 #else
  98     static const WCHAR zapfmt[] = {'%','s','\\','%','s','\\','%','s','%','s','_','3','2',0};
  99 #endif
 100
 101     TRACE("(%08x, %p, %p)\n", dwCacheFlags, pwzCachePath, pcchPath);
 102
 103     if (!pcchPath)
 104         return E_INVALIDARG;
 105
 106     GetWindowsDirectoryW(windir, MAX_PATH);
 107     lstrcpyW(path, windir);
 108     lstrcatW(path, backslash);
 109     lstrcatW(path, assembly);
 110
 111     switch (dwCacheFlags)
 112     {
 113         case ASM_CACHE_ZAP:
 114         {
 115             hr = get_corversion(version, MAX_PATH);
 116             if (FAILED(hr))
 117                 return hr;
 118
 119             sprintfW(path, zapfmt, windir, assembly, nativeimg, version);
 120             break;
 121         }
 122
 123         case ASM_CACHE_GAC:
 124         {
 125             lstrcatW(path, backslash);
 126             lstrcatW(path, gac);
 127             break;
 128         }
 129
 130         case ASM_CACHE_DOWNLOAD:
 131         {
 132             FIXME("Download cache not implemented\n");
 133             return E_FAIL;
 134         }
 135
 136         case ASM_CACHE_ROOT:
 137             break; /* already set */
 138
 139         default:
 140             return E_INVALIDARG;
 141     }
 142
 143     len = lstrlenW(path) + 1;
 144     if (*pcchPath <= len || !pwzCachePath)
 145         hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
 146     else if (pwzCachePath)
 147         lstrcpyW(pwzCachePath, path);
 148
 149     *pcchPath = len;
 150
 151     return hr;
 152 }