mscoree: Implement ICLRMetaHost_GetVersionFromFile.

dlls/mscoree/Makefile.in

 MODULE    = mscoree.dll
-IMPORTS   = uuid shell32 advapi32
+IMPORTS   = dbghelp uuid shell32 advapi32
 
 C_SRCS = \
+	assembly.c \
 	corruntimehost.c \
 	metahost.c \
 	mscoree_main.c

dlls/mscoree/assembly.c

+/*
+ * assembly parser
+ *
+ * Copyright 2008 James Hawkins
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "windef.h"
+#include "winbase.h"
+#include "winuser.h"
+#include "winver.h"
+#include "dbghelp.h"
+#include "ole2.h"
+#include "corhdr.h"
+#include "mscoree_private.h"
+
+#include "wine/debug.h"
+#include "wine/unicode.h"
+
+typedef struct
+{
+    ULONG Signature;
+    USHORT MajorVersion;
+    USHORT MinorVersion;
+    ULONG Reserved;
+    ULONG VersionLength;
+    LPSTR Version;
+    BYTE Flags;
+    WORD Streams;
+} METADATAHDR;
+
+typedef struct
+{
+    DWORD Offset;
+    DWORD Size;
+} METADATASTREAMHDR;
+
+typedef struct tagCLRTABLE
+{
+    INT rows;
+    DWORD offset;
+} CLRTABLE;
+
+struct tagASSEMBLY
+{
+    LPWSTR path;
+
+    HANDLE hfile;
+    HANDLE hmap;
+    BYTE *data;
+
+    IMAGE_NT_HEADERS *nthdr;
+    IMAGE_COR20_HEADER *corhdr;
+
+    METADATAHDR *metadatahdr;
+};
+
+static inline LPWSTR strdupW(LPCWSTR src)
+{
+    LPWSTR dest;
+
+    if (!src)
+        return NULL;
+
+    dest = HeapAlloc(GetProcessHeap(), 0, (lstrlenW(src) + 1) * sizeof(WCHAR));
+    if (dest)
+        lstrcpyW(dest, src);
+
+    return dest;
+}
+
+static HRESULT parse_metadata_header(ASSEMBLY *assembly, DWORD *hdrsz)
+{
+    METADATAHDR *metadatahdr;
+    BYTE *ptr, *dest;
+    DWORD size, ofs;
+    ULONG rva;
+
+    rva = assembly->corhdr->MetaData.VirtualAddress;
+    ptr = ImageRvaToVa(assembly->nthdr, assembly->data, rva, NULL);
+    if (!ptr)
+        return E_FAIL;
+
+    metadatahdr = (METADATAHDR *)ptr;
+
+    assembly->metadatahdr = HeapAlloc(GetProcessHeap(), 0, sizeof(METADATAHDR));
+    if (!assembly->metadatahdr)
+        return E_OUTOFMEMORY;
+
+    size = FIELD_OFFSET(METADATAHDR, Version);
+    memcpy(assembly->metadatahdr, metadatahdr, size);
+
+    assembly->metadatahdr->Version = (LPSTR)&metadatahdr->Version;
+
+    ofs = FIELD_OFFSET(METADATAHDR, Flags);
+    ptr += FIELD_OFFSET(METADATAHDR, Version) + metadatahdr->VersionLength + 1;
+    dest = (BYTE *)assembly->metadatahdr + ofs;
+    memcpy(dest, ptr, sizeof(METADATAHDR) - ofs);
+
+    *hdrsz = sizeof(METADATAHDR) - sizeof(LPSTR) + metadatahdr->VersionLength + 1;
+
+    return S_OK;
+}
+
+static HRESULT parse_clr_metadata(ASSEMBLY *assembly)
+{
+    HRESULT hr;
+    DWORD hdrsz;
+
+    hr = parse_metadata_header(assembly, &hdrsz);
+    if (FAILED(hr))
+        return hr;
+
+    return S_OK;
+}
+
+static HRESULT parse_pe_header(ASSEMBLY *assembly)
+{
+    IMAGE_DATA_DIRECTORY *datadirs;
+
+    assembly->nthdr = ImageNtHeader(assembly->data);
+    if (!assembly->nthdr)
+        return E_FAIL;
+
+    if (assembly->nthdr->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
+    {
+        IMAGE_OPTIONAL_HEADER64 *opthdr =
+                (IMAGE_OPTIONAL_HEADER64 *)&assembly->nthdr->OptionalHeader;
+        datadirs = opthdr->DataDirectory;
+    }
+    else
+    {
+        IMAGE_OPTIONAL_HEADER32 *opthdr =
+                (IMAGE_OPTIONAL_HEADER32 *)&assembly->nthdr->OptionalHeader;
+        datadirs = opthdr->DataDirectory;
+    }
+
+    if (!datadirs)
+        return E_FAIL;
+
+    if (!datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress ||
+        !datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size)
+    {
+        return E_FAIL;
+    }
+
+    assembly->corhdr = ImageRvaToVa(assembly->nthdr, assembly->data,
+        datadirs[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress, NULL);
+    if (!assembly->corhdr)
+        return E_FAIL;
+
+    return S_OK;
+}
+
+HRESULT assembly_create(ASSEMBLY **out, LPCWSTR file)
+{
+    ASSEMBLY *assembly;
+    HRESULT hr;
+
+    *out = NULL;
+
+    assembly = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ASSEMBLY));
+    if (!assembly)
+        return E_OUTOFMEMORY;
+
+    assembly->path = strdupW(file);
+    if (!assembly->path)
+    {
+        hr = E_OUTOFMEMORY;
+        goto failed;
+    }
+
+    assembly->hfile = CreateFileW(file, GENERIC_READ, FILE_SHARE_READ,
+                                  NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (assembly->hfile == INVALID_HANDLE_VALUE)
+    {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        goto failed;
+    }
+
+    assembly->hmap = CreateFileMappingW(assembly->hfile, NULL, PAGE_READONLY,
+                                        0, 0, NULL);
+    if (!assembly->hmap)
+    {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        goto failed;
+    }
+
+    assembly->data = MapViewOfFile(assembly->hmap, FILE_MAP_READ, 0, 0, 0);
+    if (!assembly->data)
+    {
+        hr = HRESULT_FROM_WIN32(GetLastError());
+        goto failed;
+    }
+
+    hr = parse_pe_header(assembly);
+    if (FAILED(hr)) goto failed;
+
+    hr = parse_clr_metadata(assembly);
+    if (FAILED(hr)) goto failed;
+
+    *out = assembly;
+    return S_OK;
+
+failed:
+    assembly_release(assembly);
+    return hr;
+}
+
+HRESULT assembly_release(ASSEMBLY *assembly)
+{
+    if (!assembly)
+        return S_OK;
+
+    HeapFree(GetProcessHeap(), 0, assembly->metadatahdr);
+    HeapFree(GetProcessHeap(), 0, assembly->path);
+    UnmapViewOfFile(assembly->data);
+    CloseHandle(assembly->hmap);
+    CloseHandle(assembly->hfile);
+    HeapFree(GetProcessHeap(), 0, assembly);
+
+    return S_OK;
+}
+
+HRESULT assembly_get_runtime_version(ASSEMBLY *assembly, LPSTR *version)
+{
+    *version = assembly->metadatahdr->Version;
+
+    return S_OK;
+}

dlls/mscoree/metahost.c

@@ -86,9 +86,36 @@ static HRESULT WINAPI CLRMetaHost_GetRuntime(ICLRMetaHost* iface,
 static HRESULT WINAPI CLRMetaHost_GetVersionFromFile(ICLRMetaHost* iface,
     LPCWSTR pwzFilePath, LPWSTR pwzBuffer, DWORD *pcchBuffer)
 {
-    FIXME("%s %p %p\n", debugstr_w(pwzFilePath), pwzBuffer, pcchBuffer);
+    ASSEMBLY *assembly;
+    HRESULT hr;
+    LPSTR version;
+    ULONG buffer_size=*pcchBuffer;
 
-    return E_NOTIMPL;
+    TRACE("%s %p %p\n", debugstr_w(pwzFilePath), pwzBuffer, pcchBuffer);
+
+    hr = assembly_create(&assembly, pwzFilePath);
+
+    if (SUCCEEDED(hr))
+    {
+        hr = assembly_get_runtime_version(assembly, &version);
+
+        if (SUCCEEDED(hr))
+        {
+            *pcchBuffer = MultiByteToWideChar(CP_UTF8, 0, version, -1, NULL, 0);
+
+            if (pwzBuffer)
+            {
+                if (buffer_size >= *pcchBuffer)
+                    MultiByteToWideChar(CP_UTF8, 0, version, -1, pwzBuffer, buffer_size);
+                else
+                    hr = HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
+            }
+        }
+
+        assembly_release(assembly);
+    }
+
+    return hr;
 }
 
 static HRESULT WINAPI CLRMetaHost_EnumerateInstalledRuntimes(ICLRMetaHost* iface,

dlls/mscoree/mscoree_private.h

@@ -24,6 +24,12 @@ extern IUnknown* create_corruntimehost(void);
 
 extern HRESULT CLRMetaHost_CreateInstance(REFIID riid, void **ppobj);
 
+typedef struct tagASSEMBLY ASSEMBLY;
+
+HRESULT assembly_create(ASSEMBLY **out, LPCWSTR file);
+HRESULT assembly_release(ASSEMBLY *assembly);
+HRESULT assembly_get_runtime_version(ASSEMBLY *assembly, LPSTR *version);
+
 /* Mono 2.6 embedding */
 typedef struct _MonoDomain MonoDomain;
 typedef struct _MonoAssembly MonoAssembly;