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/*
* Marshaling Routines
*
* Copyright 2005 Robert Shearman
* Copyright 2009 Huw Davies
*
* 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
*/
#define COBJMACROS
#define NONAMELESSUNION
#include "ole2.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(ole);
#define ALIGNED_LENGTH(_Len, _Align) (((_Len)+(_Align))&~(_Align))
#define ALIGNED_POINTER(_Ptr, _Align) ((LPVOID)ALIGNED_LENGTH((ULONG_PTR)(_Ptr), _Align))
#define ALIGN_LENGTH(_Len, _Align) _Len = ALIGNED_LENGTH(_Len, _Align)
#define ALIGN_POINTER(_Ptr, _Align) _Ptr = ALIGNED_POINTER(_Ptr, _Align)
static const char* debugstr_user_flags(ULONG *pFlags)
{
char buf[12];
const char* loword;
switch (LOWORD(*pFlags))
{
case MSHCTX_LOCAL:
loword = "MSHCTX_LOCAL";
break;
case MSHCTX_NOSHAREDMEM:
loword = "MSHCTX_NOSHAREDMEM";
break;
case MSHCTX_DIFFERENTMACHINE:
loword = "MSHCTX_DIFFERENTMACHINE";
break;
case MSHCTX_INPROC:
loword = "MSHCTX_INPROC";
break;
default:
sprintf(buf, "%d", LOWORD(*pFlags));
loword=buf;
}
if (HIWORD(*pFlags) == NDR_LOCAL_DATA_REPRESENTATION)
return wine_dbg_sprintf("MAKELONG(%s, NDR_LOCAL_DATA_REPRESENTATION)", loword);
else
return wine_dbg_sprintf("MAKELONG(%s, 0x%04x)", loword, HIWORD(*pFlags));
}
static ULONG handle_UserSize(ULONG *pFlags, ULONG StartingSize, HANDLE *handle)
{
if (LOWORD(*pFlags) == MSHCTX_DIFFERENTMACHINE)
{
ERR("can't remote a local handle\n");
RaiseException(RPC_S_INVALID_TAG, 0, 0, NULL);
return StartingSize;
}
ALIGN_LENGTH(StartingSize, 3);
return StartingSize + sizeof(RemotableHandle);
}
static unsigned char * handle_UserMarshal(ULONG *pFlags, unsigned char *pBuffer, HANDLE *handle)
{
RemotableHandle *remhandle;
if (LOWORD(*pFlags) == MSHCTX_DIFFERENTMACHINE)
{
ERR("can't remote a local handle\n");
RaiseException(RPC_S_INVALID_TAG, 0, 0, NULL);
return pBuffer;
}
ALIGN_POINTER(pBuffer, 3);
remhandle = (RemotableHandle *)pBuffer;
remhandle->fContext = WDT_INPROC_CALL;
remhandle->u.hInproc = (LONG_PTR)*handle;
return pBuffer + sizeof(RemotableHandle);
}
static unsigned char * handle_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, HANDLE *handle)
{
RemotableHandle *remhandle;
ALIGN_POINTER(pBuffer, 3);
remhandle = (RemotableHandle *)pBuffer;
if (remhandle->fContext != WDT_INPROC_CALL)
RaiseException(RPC_X_BAD_STUB_DATA, 0, 0, NULL);
*handle = (HANDLE)(LONG_PTR)remhandle->u.hInproc;
return pBuffer + sizeof(RemotableHandle);
}
static void handle_UserFree(ULONG *pFlags, HANDLE *handle)
{
/* nothing to do */
}
#define IMPL_WIREM_HANDLE(type) \
ULONG __RPC_USER type##_UserSize(ULONG *pFlags, ULONG StartingSize, type *handle) \
{ \
TRACE("%s, %lu, %p.\n", debugstr_user_flags(pFlags), StartingSize, handle); \
return handle_UserSize(pFlags, StartingSize, (HANDLE *)handle); \
} \
\
unsigned char * __RPC_USER type##_UserMarshal(ULONG *pFlags, unsigned char *pBuffer, type *handle) \
{ \
TRACE("%s, %p, &%p.\n", debugstr_user_flags(pFlags), pBuffer, *handle); \
return handle_UserMarshal(pFlags, pBuffer, (HANDLE *)handle); \
} \
\
unsigned char * __RPC_USER type##_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, type *handle) \
{ \
TRACE("%s, %p, %p.\n", debugstr_user_flags(pFlags), pBuffer, handle); \
return handle_UserUnmarshal(pFlags, pBuffer, (HANDLE *)handle); \
} \
\
void __RPC_USER type##_UserFree(ULONG *pFlags, type *handle) \
{ \
TRACE("%s, &%p.\n", debugstr_user_flags(pFlags), *handle); \
handle_UserFree(pFlags, (HANDLE *)handle); \
}
IMPL_WIREM_HANDLE(HACCEL)
IMPL_WIREM_HANDLE(HBRUSH)
IMPL_WIREM_HANDLE(HDC)
IMPL_WIREM_HANDLE(HICON)
IMPL_WIREM_HANDLE(HMENU)
IMPL_WIREM_HANDLE(HWND)
/******************************************************************************
* CLIPFORMAT_UserSize (combase.@)
*
* Calculates the buffer size required to marshal a clip format.
*
* PARAMS
* pFlags [I] Flags. See notes.
* StartingSize [I] Starting size of the buffer. This value is added on to
* the buffer size required for the clip format.
* pCF [I] Clip format to size.
*
* RETURNS
* The buffer size required to marshal a clip format plus the starting size.
*
* NOTES
* Even though the function is documented to take a pointer to an unsigned
* long in pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an unsigned long.
* This function is only intended to be called by the RPC runtime.
*/
ULONG __RPC_USER CLIPFORMAT_UserSize(ULONG *pFlags, ULONG size, CLIPFORMAT *pCF)
{
TRACE("%s, %lu, %p.\n", debugstr_user_flags(pFlags), size, pCF);
ALIGN_LENGTH(size, 3);
size += 8;
/* only need to marshal the name if it is not a pre-defined type and
* we are going remote */
if ((*pCF >= 0xc000) && (LOWORD(*pFlags) == MSHCTX_DIFFERENTMACHINE))
{
WCHAR format[255];
INT ret;
size += 3 * sizeof(UINT);
/* urg! this function is badly designed because it won't tell us how
* much space is needed without doing a dummy run of storing the
* name into a buffer */
ret = GetClipboardFormatNameW(*pCF, format, ARRAY_SIZE(format)-1);
if (!ret)
RaiseException(DV_E_CLIPFORMAT, 0, 0, NULL);
size += (ret + 1) * sizeof(WCHAR);
}
return size;
}
/******************************************************************************
* CLIPFORMAT_UserMarshal (combase.@)
*
* Marshals a clip format into a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format into.
* pCF [I] Clip format to marshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an unsigned
* long in pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an unsigned long.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER CLIPFORMAT_UserMarshal(ULONG *pFlags, unsigned char *pBuffer, CLIPFORMAT *pCF)
{
TRACE("%s, %p, &0x%04x.\n", debugstr_user_flags(pFlags), pBuffer, *pCF);
ALIGN_POINTER(pBuffer, 3);
/* only need to marshal the name if it is not a pre-defined type and
* we are going remote */
if ((*pCF >= 0xc000) && (LOWORD(*pFlags) == MSHCTX_DIFFERENTMACHINE))
{
WCHAR format[255];
UINT len;
*(DWORD *)pBuffer = WDT_REMOTE_CALL;
pBuffer += 4;
*(DWORD *)pBuffer = *pCF;
pBuffer += 4;
len = GetClipboardFormatNameW(*pCF, format, ARRAY_SIZE(format)-1);
if (!len)
RaiseException(DV_E_CLIPFORMAT, 0, 0, NULL);
len += 1;
*(UINT *)pBuffer = len;
pBuffer += sizeof(UINT);
*(UINT *)pBuffer = 0;
pBuffer += sizeof(UINT);
*(UINT *)pBuffer = len;
pBuffer += sizeof(UINT);
TRACE("marshaling format name %s\n", debugstr_w(format));
memcpy(pBuffer, format, len * sizeof(WCHAR));
pBuffer += len * sizeof(WCHAR);
}
else
{
*(DWORD *)pBuffer = WDT_INPROC_CALL;
pBuffer += 4;
*(DWORD *)pBuffer = *pCF;
pBuffer += 4;
}
return pBuffer;
}
/******************************************************************************
* CLIPFORMAT_UserUnmarshal (combase.@)
*
* Unmarshals a clip format from a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format from.
* pCF [O] Address that receive the unmarshaled clip format.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an unsigned
* long in pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an unsigned long.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER CLIPFORMAT_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, CLIPFORMAT *pCF)
{
LONG fContext;
TRACE("%s, %p, %p.\n", debugstr_user_flags(pFlags), pBuffer, pCF);
ALIGN_POINTER(pBuffer, 3);
fContext = *(DWORD *)pBuffer;
pBuffer += 4;
if (fContext == WDT_INPROC_CALL)
{
*pCF = *(CLIPFORMAT *)pBuffer;
pBuffer += 4;
}
else if (fContext == WDT_REMOTE_CALL)
{
CLIPFORMAT cf;
UINT len;
/* pointer ID for registered clip format string */
if (*(DWORD *)pBuffer == 0)
RaiseException(RPC_S_INVALID_BOUND, 0, 0, NULL);
pBuffer += 4;
len = *(UINT *)pBuffer;
pBuffer += sizeof(UINT);
if (*(UINT *)pBuffer != 0)
RaiseException(RPC_S_INVALID_BOUND, 0, 0, NULL);
pBuffer += sizeof(UINT);
if (*(UINT *)pBuffer != len)
RaiseException(RPC_S_INVALID_BOUND, 0, 0, NULL);
pBuffer += sizeof(UINT);
if (((WCHAR *)pBuffer)[len - 1] != '\0')
RaiseException(RPC_S_INVALID_BOUND, 0, 0, NULL);
TRACE("unmarshaling clip format %s\n", debugstr_w((LPCWSTR)pBuffer));
cf = RegisterClipboardFormatW((LPCWSTR)pBuffer);
pBuffer += len * sizeof(WCHAR);
if (!cf)
RaiseException(DV_E_CLIPFORMAT, 0, 0, NULL);
*pCF = cf;
}
else
/* code not really appropriate, but nearest I can find */
RaiseException(RPC_S_INVALID_TAG, 0, 0, NULL);
return pBuffer;
}
/******************************************************************************
* CLIPFORMAT_UserFree (combase.@)
*
* Frees an unmarshaled clip format.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pCF [I] Clip format to free.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an unsigned
* long in pFlags, it actually takes a pointer to a USER_MARSHAL_CB
* structure, of which the first parameter is an unsigned long.
* This function is only intended to be called by the RPC runtime.
*/
void __RPC_USER CLIPFORMAT_UserFree(ULONG *pFlags, CLIPFORMAT *pCF)
{
/* there is no inverse of the RegisterClipboardFormat function,
* so nothing to do */
}
/******************************************************************************
* HBITMAP_UserSize (combase.@)
*
* Calculates the buffer size required to marshal a bitmap.
*
* PARAMS
* pFlags [I] Flags. See notes.
* StartingSize [I] Starting size of the buffer. This value is added on to
* the buffer size required for the clip format.
* phBmp [I] Bitmap to size.
*
* RETURNS
* The buffer size required to marshal an bitmap plus the starting size.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
ULONG __RPC_USER HBITMAP_UserSize(ULONG *flags, ULONG size, HBITMAP *bmp)
{
TRACE("%s, %lu, %p.\n", debugstr_user_flags(flags), size, *bmp);
ALIGN_LENGTH(size, 3);
size += sizeof(ULONG);
if (LOWORD(*flags) == MSHCTX_INPROC)
size += sizeof(ULONG);
else
{
size += sizeof(ULONG);
if (*bmp)
{
size += sizeof(ULONG);
size += FIELD_OFFSET(userBITMAP, cbSize);
size += GetBitmapBits(*bmp, 0, NULL);
}
}
return size;
}
/******************************************************************************
* HBITMAP_UserMarshal (combase.@)
*
* Marshals a bitmap into a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format into.
* phBmp [I] Bitmap to marshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HBITMAP_UserMarshal(ULONG *flags, unsigned char *buffer, HBITMAP *bmp)
{
TRACE("(%s, %p, %p)\n", debugstr_user_flags(flags), buffer, *bmp);
ALIGN_POINTER(buffer, 3);
if (LOWORD(*flags) == MSHCTX_INPROC)
{
*(ULONG *)buffer = WDT_INPROC_CALL;
buffer += sizeof(ULONG);
*(ULONG *)buffer = (ULONG)(ULONG_PTR)*bmp;
buffer += sizeof(ULONG);
}
else
{
*(ULONG *)buffer = WDT_REMOTE_CALL;
buffer += sizeof(ULONG);
*(ULONG *)buffer = (ULONG)(ULONG_PTR)*bmp;
buffer += sizeof(ULONG);
if (*bmp)
{
static const ULONG header_size = FIELD_OFFSET(userBITMAP, cbSize);
BITMAP bitmap;
ULONG bitmap_size;
bitmap_size = GetBitmapBits(*bmp, 0, NULL);
*(ULONG *)buffer = bitmap_size;
buffer += sizeof(ULONG);
GetObjectW(*bmp, sizeof(BITMAP), &bitmap);
memcpy(buffer, &bitmap, header_size);
buffer += header_size;
GetBitmapBits(*bmp, bitmap_size, buffer);
buffer += bitmap_size;
}
}
return buffer;
}
/******************************************************************************
* HBITMAP_UserUnmarshal (combase.@)
*
* Unmarshals a bitmap from a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format from.
* phBmp [O] Address that receive the unmarshaled bitmap.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HBITMAP_UserUnmarshal(ULONG *flags, unsigned char *buffer, HBITMAP *bmp)
{
ULONG context;
TRACE("(%s, %p, %p)\n", debugstr_user_flags(flags), buffer, bmp);
ALIGN_POINTER(buffer, 3);
context = *(ULONG *)buffer;
buffer += sizeof(ULONG);
if (context == WDT_INPROC_CALL)
{
*bmp = *(HBITMAP *)buffer;
buffer += sizeof(*bmp);
}
else if (context == WDT_REMOTE_CALL)
{
ULONG handle = *(ULONG *)buffer;
buffer += sizeof(ULONG);
if (handle)
{
static const ULONG header_size = FIELD_OFFSET(userBITMAP, cbSize);
BITMAP bitmap;
ULONG bitmap_size;
unsigned char *bits;
bitmap_size = *(ULONG *)buffer;
buffer += sizeof(ULONG);
bits = HeapAlloc(GetProcessHeap(), 0, bitmap_size);
memcpy(&bitmap, buffer, header_size);
buffer += header_size;
memcpy(bits, buffer, bitmap_size);
buffer += bitmap_size;
bitmap.bmBits = bits;
*bmp = CreateBitmapIndirect(&bitmap);
HeapFree(GetProcessHeap(), 0, bits);
}
else
*bmp = NULL;
}
else
RaiseException(RPC_S_INVALID_TAG, 0, 0, NULL);
return buffer;
}
/******************************************************************************
* HBITMAP_UserFree (combase.@)
*
* Frees an unmarshaled bitmap.
*
* PARAMS
* pFlags [I] Flags. See notes.
* phBmp [I] Bitmap to free.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of
* which the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
void __RPC_USER HBITMAP_UserFree(ULONG *flags, HBITMAP *bmp)
{
TRACE("(%s, %p)\n", debugstr_user_flags(flags), *bmp);
if (LOWORD(*flags) != MSHCTX_INPROC)
DeleteObject(*bmp);
}
/******************************************************************************
* HPALETTE_UserSize (combase.@)
*
* Calculates the buffer size required to marshal a palette.
*
* PARAMS
* pFlags [I] Flags. See notes.
* StartingSize [I] Starting size of the buffer. This value is added on to
* the buffer size required for the clip format.
* phPal [I] Palette to size.
*
* RETURNS
* The buffer size required to marshal a palette plus the starting size.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
ULONG __RPC_USER HPALETTE_UserSize(ULONG *pFlags, ULONG StartingSize, HPALETTE *phPal)
{
FIXME(":stub\n");
return StartingSize;
}
/******************************************************************************
* HPALETTE_UserMarshal (combase.@)
*
* Marshals a palette into a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format into.
* phPal [I] Palette to marshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HPALETTE_UserMarshal(ULONG *pFlags, unsigned char *pBuffer, HPALETTE *phPal)
{
FIXME(":stub\n");
return pBuffer;
}
/******************************************************************************
* HPALETTE_UserUnmarshal (combase.@)
*
* Unmarshals a palette from a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format from.
* phPal [O] Address that receive the unmarshaled palette.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HPALETTE_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, HPALETTE *phPal)
{
FIXME(":stub\n");
return pBuffer;
}
/******************************************************************************
* HGLOBAL_UserSize (combase.@)
*
* Calculates the buffer size required to marshal an HGLOBAL.
*
* PARAMS
* pFlags [I] Flags. See notes.
* StartingSize [I] Starting size of the buffer. This value is added on to
* the buffer size required for the clip format.
* phGlobal [I] HGLOBAL to size.
*
* RETURNS
* The buffer size required to marshal an HGLOBAL plus the starting size.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
ULONG __RPC_USER HGLOBAL_UserSize(ULONG *pFlags, ULONG StartingSize, HGLOBAL *phGlobal)
{
ULONG size = StartingSize;
TRACE("%s, %lu, %p.\n", debugstr_user_flags(pFlags), StartingSize, phGlobal);
ALIGN_LENGTH(size, 3);
size += sizeof(ULONG);
if (LOWORD(*pFlags) == MSHCTX_INPROC)
size += sizeof(HGLOBAL);
else
{
size += sizeof(ULONG);
if (*phGlobal)
{
SIZE_T ret;
size += 3 * sizeof(ULONG);
ret = GlobalSize(*phGlobal);
size += (ULONG)ret;
}
}
return size;
}
/******************************************************************************
* HGLOBAL_UserMarshal (combase.@)
*
* Marshals an HGLOBAL into a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format into.
* phGlobal [I] HGLOBAL to marshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HGLOBAL_UserMarshal(ULONG *pFlags, unsigned char *pBuffer, HGLOBAL *phGlobal)
{
TRACE("%s, %p, &%p.\n", debugstr_user_flags(pFlags), pBuffer, *phGlobal);
ALIGN_POINTER(pBuffer, 3);
if (LOWORD(*pFlags) == MSHCTX_INPROC)
{
if (sizeof(*phGlobal) == 8)
*(ULONG *)pBuffer = WDT_INPROC64_CALL;
else
*(ULONG *)pBuffer = WDT_INPROC_CALL;
pBuffer += sizeof(ULONG);
*(HGLOBAL *)pBuffer = *phGlobal;
pBuffer += sizeof(HGLOBAL);
}
else
{
*(ULONG *)pBuffer = WDT_REMOTE_CALL;
pBuffer += sizeof(ULONG);
*(ULONG *)pBuffer = HandleToULong(*phGlobal);
pBuffer += sizeof(ULONG);
if (*phGlobal)
{
const unsigned char *memory;
SIZE_T size = GlobalSize(*phGlobal);
*(ULONG *)pBuffer = (ULONG)size;
pBuffer += sizeof(ULONG);
*(ULONG *)pBuffer = HandleToULong(*phGlobal);
pBuffer += sizeof(ULONG);
*(ULONG *)pBuffer = (ULONG)size;
pBuffer += sizeof(ULONG);
memory = GlobalLock(*phGlobal);
memcpy(pBuffer, memory, size);
pBuffer += size;
GlobalUnlock(*phGlobal);
}
}
return pBuffer;
}
/******************************************************************************
* HGLOBAL_UserUnmarshal (combase.@)
*
* Unmarshals an HGLOBAL from a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format from.
* phGlobal [O] Address that receive the unmarshaled HGLOBAL.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an ULONG.
* This function is only intended to be called by the RPC runtime.
*/
unsigned char * __RPC_USER HGLOBAL_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, HGLOBAL *phGlobal)
{
ULONG fContext;
TRACE("%s, %p, &%p.\n", debugstr_user_flags(pFlags), pBuffer, *phGlobal);
ALIGN_POINTER(pBuffer, 3);
fContext = *(ULONG *)pBuffer;
pBuffer += sizeof(ULONG);
if (((fContext == WDT_INPROC_CALL) && (sizeof(*phGlobal) < 8)) ||
((fContext == WDT_INPROC64_CALL) && (sizeof(*phGlobal) == 8)))
{
*phGlobal = *(HGLOBAL *)pBuffer;
pBuffer += sizeof(*phGlobal);
}
else if (fContext == WDT_REMOTE_CALL)
{
ULONG handle;
handle = *(ULONG *)pBuffer;
pBuffer += sizeof(ULONG);
if (handle)
{
ULONG size;
void *memory;
size = *(ULONG *)pBuffer;
pBuffer += sizeof(ULONG);
/* redundancy is bad - it means you have to check consistency like
* this: */
if (*(ULONG *)pBuffer != handle)
{
RaiseException(RPC_X_BAD_STUB_DATA, 0, 0, NULL);
return pBuffer;
}
pBuffer += sizeof(ULONG);
/* redundancy is bad - it means you have to check consistency like
* this: */
if (*(ULONG *)pBuffer != size)
{
RaiseException(RPC_X_BAD_STUB_DATA, 0, 0, NULL);
return pBuffer;
}
pBuffer += sizeof(ULONG);
/* FIXME: check size is not too big */
*phGlobal = GlobalAlloc(GMEM_MOVEABLE, size);
memory = GlobalLock(*phGlobal);
memcpy(memory, pBuffer, size);
pBuffer += size;
GlobalUnlock(*phGlobal);
}
else
*phGlobal = NULL;
}
else
RaiseException(RPC_S_INVALID_TAG, 0, 0, NULL);
return pBuffer;
}
/******************************************************************************
* HGLOBAL_UserFree (combase.@)
*
* Frees an unmarshaled HGLOBAL.
*
* PARAMS
* pFlags [I] Flags. See notes.
* phGlobal [I] HGLOBAL to free.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of
* which the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
void __RPC_USER HGLOBAL_UserFree(ULONG *pFlags, HGLOBAL *phGlobal)
{
TRACE("%s, &%p.\n", debugstr_user_flags(pFlags), *phGlobal);
if (LOWORD(*pFlags) != MSHCTX_INPROC && *phGlobal)
GlobalFree(*phGlobal);
}
/******************************************************************************
* HPALETTE_UserFree (combase.@)
*
* Frees an unmarshaled palette.
*
* PARAMS
* pFlags [I] Flags. See notes.
* phPal [I] Palette to free.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of
* which the first parameter is a ULONG.
* This function is only intended to be called by the RPC runtime.
*/
void __RPC_USER HPALETTE_UserFree(ULONG *pFlags, HPALETTE *phPal)
{
FIXME(":stub\n");
}
/******************************************************************************
* WdtpInterfacePointer_UserSize (combase.@)
*
* Calculates the buffer size required to marshal an interface pointer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* RealFlags [I] The MSHCTX to use when marshaling the interface.
* punk [I] Interface pointer to size.
* StartingSize [I] Starting size of the buffer. This value is added on to
* the buffer size required for the clip format.
* riid [I] ID of interface to size.
*
* RETURNS
* The buffer size required to marshal an interface pointer plus the starting size.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
*/
ULONG __RPC_USER WdtpInterfacePointer_UserSize(ULONG *pFlags, ULONG RealFlags, ULONG StartingSize, IUnknown *punk, REFIID riid)
{
DWORD marshal_size = 0;
HRESULT hr;
TRACE("%s, %#lx, %lu, %p, %s.\n", debugstr_user_flags(pFlags), RealFlags, StartingSize, punk, debugstr_guid(riid));
hr = CoGetMarshalSizeMax(&marshal_size, riid, punk, LOWORD(RealFlags), NULL, MSHLFLAGS_NORMAL);
if (FAILED(hr)) return StartingSize;
ALIGN_LENGTH(StartingSize, 3);
StartingSize += 2 * sizeof(DWORD);
return StartingSize + marshal_size;
}
/******************************************************************************
* WdtpInterfacePointer_UserMarshal (combase.@)
*
* Marshals an interface pointer into a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* RealFlags [I] The MSHCTX to use when marshaling the interface.
* pBuffer [I] Buffer to marshal the clip format into.
* punk [I] Interface pointer to marshal.
* riid [I] ID of interface to marshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to a ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is a ULONG.
*/
unsigned char * WINAPI WdtpInterfacePointer_UserMarshal(ULONG *pFlags, ULONG RealFlags, unsigned char *pBuffer, IUnknown *punk, REFIID riid)
{
HGLOBAL h = GlobalAlloc(GMEM_MOVEABLE, 0);
IStream *stm;
DWORD size;
void *ptr;
TRACE("%s, %#lx, %p, &%p, %s.\n", debugstr_user_flags(pFlags), RealFlags, pBuffer, punk, debugstr_guid(riid));
if (!h) return NULL;
if (CreateStreamOnHGlobal(h, TRUE, &stm) != S_OK)
{
GlobalFree(h);
return NULL;
}
if (CoMarshalInterface(stm, riid, punk, LOWORD(RealFlags), NULL, MSHLFLAGS_NORMAL) != S_OK)
{
IStream_Release(stm);
return pBuffer;
}
ALIGN_POINTER(pBuffer, 3);
size = GlobalSize(h);
*(DWORD *)pBuffer = size;
pBuffer += sizeof(DWORD);
*(DWORD *)pBuffer = size;
pBuffer += sizeof(DWORD);
ptr = GlobalLock(h);
memcpy(pBuffer, ptr, size);
GlobalUnlock(h);
IStream_Release(stm);
return pBuffer + size;
}
/******************************************************************************
* WdtpInterfacePointer_UserUnmarshal (combase.@)
*
* Unmarshals an interface pointer from a buffer.
*
* PARAMS
* pFlags [I] Flags. See notes.
* pBuffer [I] Buffer to marshal the clip format from.
* ppunk [I/O] Address that receives the unmarshaled interface pointer.
* riid [I] ID of interface to unmarshal.
*
* RETURNS
* The end of the marshaled data in the buffer.
*
* NOTES
* Even though the function is documented to take a pointer to an ULONG in
* pFlags, it actually takes a pointer to a USER_MARSHAL_CB structure, of which
* the first parameter is an ULONG.
*/
unsigned char * WINAPI WdtpInterfacePointer_UserUnmarshal(ULONG *pFlags, unsigned char *pBuffer, IUnknown **ppunk, REFIID riid)
{
HRESULT hr;
HGLOBAL h;
IStream *stm;
DWORD size;
void *ptr;
IUnknown *orig;
TRACE("%s, %p, %p, %s.\n", debugstr_user_flags(pFlags), pBuffer, ppunk, debugstr_guid(riid));
ALIGN_POINTER(pBuffer, 3);
size = *(DWORD *)pBuffer;
pBuffer += sizeof(DWORD);
if (size != *(DWORD *)pBuffer)
RaiseException(RPC_X_BAD_STUB_DATA, 0, 0, NULL);
pBuffer += sizeof(DWORD);
/* FIXME: sanity check on size */
h = GlobalAlloc(GMEM_MOVEABLE, size);
if (!h) RaiseException(RPC_X_NO_MEMORY, 0, 0, NULL);
if (CreateStreamOnHGlobal(h, TRUE, &stm) != S_OK)
{
GlobalFree(h);
RaiseException(RPC_X_NO_MEMORY, 0, 0, NULL);
}
ptr = GlobalLock(h);
memcpy(ptr, pBuffer, size);
GlobalUnlock(h);
orig = *ppunk;
hr = CoUnmarshalInterface(stm, riid, (void**)ppunk);
IStream_Release(stm);
if (hr != S_OK) RaiseException(hr, 0, 0, NULL);
if (orig) IUnknown_Release(orig);
return pBuffer + size;
}
/******************************************************************************
* WdtpInterfacePointer_UserFree (combase.@)
*/
void WINAPI WdtpInterfacePointer_UserFree(IUnknown *punk)
{
TRACE("%p.\n", punk);
if (punk) IUnknown_Release(punk);
}
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