reactos/dll/win32/sxs/sxs.c
2019-11-30 14:56:42 +01:00

193 lines
5.9 KiB
C

/*
* sxs main
*
* Copyright 2007 EA Durbin
*
* 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 "windef.h"
#include "winbase.h"
#include "wine/heap.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(sxs);
/***********************************************************************
* DllMain (SXS.@)
*
*/
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
switch(fdwReason)
{
case DLL_WINE_PREATTACH:
return FALSE; /* prefer native version */
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls( hinstDLL );
break;
}
return TRUE;
}
typedef struct _SXS_GUID_INFORMATION_CLR
{
DWORD cbSize;
DWORD dwFlags;
PCWSTR pcwszRuntimeVersion;
PCWSTR pcwszTypeName;
PCWSTR pcwszAssemblyIdentity;
} SXS_GUID_INFORMATION_CLR, *PSXS_GUID_INFORMATION_CLR;
#define SXS_GUID_INFORMATION_CLR_FLAG_IS_SURROGATE 0x1
#define SXS_GUID_INFORMATION_CLR_FLAG_IS_CLASS 0x2
#define SXS_LOOKUP_CLR_GUID_USE_ACTCTX 0x00000001
#define SXS_LOOKUP_CLR_GUID_FIND_SURROGATE 0x00010000
#define SXS_LOOKUP_CLR_GUID_FIND_CLR_CLASS 0x00020000
struct comclassredirect_data
{
ULONG size;
BYTE res;
BYTE miscmask;
BYTE res1[2];
DWORD model;
GUID clsid;
GUID alias;
GUID clsid2;
GUID tlbid;
ULONG name_len;
ULONG name_offset;
ULONG progid_len;
ULONG progid_offset;
ULONG clrdata_len;
ULONG clrdata_offset;
DWORD miscstatus;
DWORD miscstatuscontent;
DWORD miscstatusthumbnail;
DWORD miscstatusicon;
DWORD miscstatusdocprint;
};
struct clrclass_data
{
ULONG size;
DWORD res[2];
ULONG module_len;
ULONG module_offset;
ULONG name_len;
ULONG name_offset;
ULONG version_len;
ULONG version_offset;
DWORD res2[2];
};
BOOL WINAPI SxsLookupClrGuid(DWORD flags, GUID *clsid, HANDLE actctx, void *buffer, SIZE_T buffer_len,
SIZE_T *buffer_len_required)
{
ACTCTX_SECTION_KEYED_DATA guid_info = { sizeof(ACTCTX_SECTION_KEYED_DATA) };
ACTIVATION_CONTEXT_ASSEMBLY_DETAILED_INFORMATION *assembly_info;
SIZE_T bytes_assembly_info;
struct comclassredirect_data *redirect_data;
struct clrclass_data *class_data;
int len_version = 0, len_name, len_identity;
const void *ptr_name, *ptr_version, *ptr_identity;
SXS_GUID_INFORMATION_CLR *ret = buffer;
char *ret_strings;
TRACE("(%x, %s, %p, %p, %08lx, %p): stub\n", flags, wine_dbgstr_guid(clsid), actctx,
buffer, buffer_len, buffer_len_required);
if (flags & ~SXS_LOOKUP_CLR_GUID_FIND_CLR_CLASS)
FIXME("Ignored flags: %x\n", flags & ~SXS_LOOKUP_CLR_GUID_FIND_CLR_CLASS);
if (!FindActCtxSectionGuid(FIND_ACTCTX_SECTION_KEY_RETURN_HACTCTX, 0,
ACTIVATION_CONTEXT_SECTION_COM_SERVER_REDIRECTION, clsid, &guid_info))
{
SetLastError(ERROR_NOT_FOUND);
return FALSE;
}
QueryActCtxW(0, guid_info.hActCtx, &guid_info.ulAssemblyRosterIndex,
AssemblyDetailedInformationInActivationContext, NULL, 0, &bytes_assembly_info);
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
{
ReleaseActCtx(guid_info.hActCtx);
return FALSE;
}
assembly_info = heap_alloc(bytes_assembly_info);
if(!QueryActCtxW(0, guid_info.hActCtx, &guid_info.ulAssemblyRosterIndex,
AssemblyDetailedInformationInActivationContext, assembly_info,
bytes_assembly_info, &bytes_assembly_info))
{
heap_free(assembly_info);
ReleaseActCtx(guid_info.hActCtx);
return FALSE;
}
redirect_data = guid_info.lpData;
class_data = (void *)((char*)redirect_data + redirect_data->clrdata_offset);
ptr_identity = assembly_info->lpAssemblyEncodedAssemblyIdentity;
ptr_name = (char *)class_data + class_data->name_offset;
ptr_version = (char *)class_data + class_data->version_offset;
len_identity = assembly_info->ulEncodedAssemblyIdentityLength + sizeof(WCHAR);
len_name = class_data->name_len + sizeof(WCHAR);
if (class_data->version_len > 0)
len_version = class_data->version_len + sizeof(WCHAR);
*buffer_len_required = sizeof(SXS_GUID_INFORMATION_CLR) + len_identity + len_version + len_name;
if (!buffer || buffer_len < *buffer_len_required)
{
SetLastError(ERROR_INSUFFICIENT_BUFFER);
heap_free(assembly_info);
ReleaseActCtx(guid_info.hActCtx);
return FALSE;
}
ret->cbSize = sizeof(SXS_GUID_INFORMATION_CLR);
ret->dwFlags = SXS_GUID_INFORMATION_CLR_FLAG_IS_CLASS;
/* Copy strings into buffer */
ret_strings = (char *)ret + sizeof(SXS_GUID_INFORMATION_CLR);
memcpy(ret_strings, ptr_identity, len_identity);
ret->pcwszAssemblyIdentity = (WCHAR *)ret_strings;
ret_strings += len_identity;
memcpy(ret_strings, ptr_name, len_name);
ret->pcwszTypeName = (WCHAR *)ret_strings;
ret_strings += len_name;
if (len_version > 0)
{
memcpy(ret_strings, ptr_version, len_version);
ret->pcwszRuntimeVersion = (WCHAR *)ret_strings;
}
else
ret->pcwszRuntimeVersion = NULL;
SetLastError(0);
ReleaseActCtx(guid_info.hActCtx);
heap_free(assembly_info);
return TRUE;
}