110 lines
2.7 KiB
C
110 lines
2.7 KiB
C
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: wire_mar.c
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//
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// Contents: wire_marshal routines for shell data types
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//
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// History: 18-JUN-99 ZekeL - created file
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//
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//--------------------------------------------------------------------------
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#define DUMMYUNIONNAME
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#include <shtypes.h>
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#include <ole2.h>
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// unsafe macros
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#define _ILSkip(pidl, cb) ((LPITEMIDLIST)(((BYTE*)(pidl))+cb))
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#define _ILNext(pidl) _ILSkip(pidl, (pidl)->mkid.cb)
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ULONG MyILSize(LPCITEMIDLIST pidl)
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{
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ULONG cb = 0;
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if (pidl)
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{
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cb = sizeof(pidl->mkid.cb); // Null terminator
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while (pidl->mkid.cb)
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{
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cb += pidl->mkid.cb;
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pidl = _ILNext(pidl);
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}
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}
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return cb;
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}
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ULONG __RPC_USER LPITEMIDLIST_UserSize(ULONG *pFlags, ULONG StartingSize, LPITEMIDLIST *ppidl)
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{
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return StartingSize + sizeof(ULONG) + MyILSize(*ppidl);
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}
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UCHAR * __RPC_USER LPITEMIDLIST_UserMarshal(ULONG *pFlags, UCHAR *pBuffer, LPITEMIDLIST *ppidl)
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{
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ULONG cb = MyILSize(*ppidl);
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// set the size of the BYTE_BLOB
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*((ULONG UNALIGNED *)pBuffer) = cb;
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pBuffer += sizeof(ULONG);
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if (cb)
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{
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// copy the pidl over
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memcpy(pBuffer, *ppidl, cb);
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}
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return pBuffer + cb;
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}
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UCHAR * __RPC_USER LPITEMIDLIST_UserUnmarshal(ULONG *pFlags, UCHAR *pBuffer, LPITEMIDLIST *ppidl)
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{
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ULONG cb = *((ULONG UNALIGNED *)pBuffer);
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pBuffer += sizeof(ULONG);
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if (cb)
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{
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//ASSERT(cb == MyILSize((LPCITEMIDLIST)pBuffer);
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*ppidl = (LPITEMIDLIST)CoTaskMemRealloc(*ppidl, cb);
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if (*ppidl)
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{
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memcpy(*ppidl, pBuffer, cb);
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}
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else
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{
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RpcRaiseException(E_OUTOFMEMORY);
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}
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}
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else
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*ppidl = NULL;
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return pBuffer + cb;
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}
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void __RPC_USER LPITEMIDLIST_UserFree(ULONG *pFlags, LPITEMIDLIST *ppidl)
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{
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CoTaskMemFree(*ppidl);
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}
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ULONG __RPC_USER LPCITEMIDLIST_UserSize(ULONG *pFlags, ULONG StartingSize, LPCITEMIDLIST *ppidl)
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{
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return LPITEMIDLIST_UserSize(pFlags, StartingSize, (LPITEMIDLIST *)ppidl);
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}
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UCHAR * __RPC_USER LPCITEMIDLIST_UserMarshal(ULONG *pFlags, UCHAR *pBuffer, LPCITEMIDLIST *ppidl)
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{
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return LPITEMIDLIST_UserMarshal(pFlags, pBuffer, (LPITEMIDLIST *)ppidl);
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}
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UCHAR * __RPC_USER LPCITEMIDLIST_UserUnmarshal(ULONG *pFlags, UCHAR *pBuffer, LPCITEMIDLIST *ppidl)
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{
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return LPITEMIDLIST_UserUnmarshal(pFlags, pBuffer, (LPITEMIDLIST *)ppidl);
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}
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void __RPC_USER LPCITEMIDLIST_UserFree(ULONG *pFlags, LPCITEMIDLIST *ppidl)
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{
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CoTaskMemFree((LPITEMIDLIST)*ppidl);
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}
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