dlls/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 /******************************************************************
  56  *  CreateApplicationContext   (FUSION.@)
  57  */
  58 HRESULT WINAPI CreateApplicationContext(IAssemblyName *name, void *ctx)
  59 {
  60     FIXME("%p, %p\n", name, ctx);
  61     return E_NOTIMPL;
  62 }
  63
  64 static HRESULT (WINAPI *pGetCORVersion)(LPWSTR pbuffer, DWORD cchBuffer,
  65                                         DWORD *dwLength);
  66
  67 static HRESULT get_corversion(LPWSTR version, DWORD size)
  68 {
  69     HMODULE hmscoree;
  70     HRESULT hr;
  71     DWORD len;
  72
  73     hmscoree = LoadLibraryA("mscoree.dll");
  74     if (!hmscoree)
  75         return E_FAIL;
  76
  77     pGetCORVersion = (void *)GetProcAddress(hmscoree, "GetCORVersion");
  78     if (!pGetCORVersion)
  79         return E_FAIL;
  80
  81     hr = pGetCORVersion(version, size, &len);
  82
  83     FreeLibrary(hmscoree);
  84     return hr;
  85 }
  86
  87 /******************************************************************
  88  *  GetCachePath   (FUSION.@)
  89  */
  90 HRESULT WINAPI GetCachePath(ASM_CACHE_FLAGS dwCacheFlags, LPWSTR pwzCachePath,
  91                             PDWORD pcchPath)
  92 {
  93     WCHAR path[MAX_PATH];
  94     WCHAR windir[MAX_PATH];
  95     WCHAR version[MAX_PATH];
  96     DWORD len;
  97     HRESULT hr = S_OK;
  98
  99     static const WCHAR backslash[] = {'\\',0};
 100     static const WCHAR assembly[] = {'a','s','s','e','m','b','l','y',0};
 101     static const WCHAR gac[] = {'G','A','C',0};
 102     static const WCHAR nativeimg[] = {
 103         'N','a','t','i','v','e','I','m','a','g','e','s','_',0};
 104 #ifdef _WIN64
 105     static const WCHAR zapfmt[] = {'%','s','\\','%','s','\\','%','s','%','s','_','6','4',0};
 106 #else
 107     static const WCHAR zapfmt[] = {'%','s','\\','%','s','\\','%','s','%','s','_','3','2',0};
 108 #endif
 109
 110     TRACE("(%08x, %p, %p)\n", dwCacheFlags, pwzCachePath, pcchPath);
 111
 112     if (!pcchPath)
 113         return E_INVALIDARG;
 114
 115     GetWindowsDirectoryW(windir, MAX_PATH);
 116     lstrcpyW(path, windir);
 117     lstrcatW(path, backslash);
 118     lstrcatW(path, assembly);
 119
 120     switch (dwCacheFlags)
 121     {
 122         case ASM_CACHE_ZAP:
 123         {
 124             hr = get_corversion(version, MAX_PATH);
 125             if (FAILED(hr))
 126                 return hr;
 127
 128             sprintfW(path, zapfmt, windir, assembly, nativeimg, version);
 129             break;
 130         }
 131
 132         case ASM_CACHE_GAC:
 133         {
 134             lstrcatW(path, backslash);
 135             lstrcatW(path, gac);
 136             break;
 137         }
 138
 139         case ASM_CACHE_DOWNLOAD:
 140         {
 141             FIXME("Download cache not implemented\n");
 142             return E_FAIL;
 143         }
 144
 145         case ASM_CACHE_ROOT:
 146             break; /* already set */
 147
 148         default:
 149             return E_INVALIDARG;
 150     }
 151
 152     len = lstrlenW(path) + 1;
 153     if (*pcchPath <= len || !pwzCachePath)
 154         hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
 155     else if (pwzCachePath)
 156         lstrcpyW(pwzCachePath, path);
 157
 158     *pcchPath = len;
 159
 160     return hr;
 161 }