117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1994 - 1996.
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//
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// File: window.cxx
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//
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// Contents: local functions
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//
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// History: 8/94 davemont Created
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//
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//----------------------------------------------------------------------------
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#include <aclpch.hxx>
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#pragma hdrstop
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//+---------------------------------------------------------------------------
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//
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// Function: ReadWindowPropertyRights
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//
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// Synopsis: Gets the specified security info from the specified handle's
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// window
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//
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// Arguments: [IN hWindow] -- Handle to the open window to
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// read the info on
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// [IN pRightsList] -- SecurityInfo to read based
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// on properties
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// [IN cRights] -- Number of items in rights list
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// [IN AccessList] -- Access List to fill in
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//
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// Returns: ERROR_SUCCESS -- Success
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// ERROR_INVALID_PARAMETER -- A bad property was encountered
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// ERROR_NOT_ENOUGH_MEMORY -- A memory allocation failed
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//
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//----------------------------------------------------------------------------
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DWORD
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ReadWindowPropertyRights(IN HANDLE hWindow,
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IN PACTRL_RIGHTS_INFO pRightsList,
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IN ULONG cRights,
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IN CAccessList& AccessList)
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{
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acDebugOut((DEB_TRACE, "In ReadWindowPropertyRights\n"));
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//
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// For the moment, there is only service property itself...
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//
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ASSERT(cRights == 1 && pRightsList[0].pwszProperty == NULL);
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if(cRights != 1 || pRightsList[0].pwszProperty != NULL)
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{
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return(ERROR_INVALID_PARAMETER);
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}
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UCHAR SDBuff[PSD_BASE_LENGTH];
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PISECURITY_DESCRIPTOR pSD = (PISECURITY_DESCRIPTOR)SDBuff;
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DWORD dwErr = ERROR_SUCCESS;
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ULONG cSize = 0;
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//
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// Get the security descriptor
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//
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if(GetUserObjectSecurity(hWindow,
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&(pRightsList[0].SeInfo),
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pSD,
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PSD_BASE_LENGTH,
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&cSize) == FALSE)
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{
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dwErr = GetLastError();
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if(dwErr == ERROR_INSUFFICIENT_BUFFER)
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{
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pSD = (PISECURITY_DESCRIPTOR)AccAlloc(cSize);
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if(pSD == NULL)
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{
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dwErr = ERROR_NOT_ENOUGH_MEMORY;
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}
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else
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{
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dwErr = ERROR_SUCCESS;
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//
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// Let's read it again
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//
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if(GetUserObjectSecurity(hWindow,
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&(pRightsList[0].SeInfo),
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pSD,
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cSize,
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&cSize) == FALSE)
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{
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dwErr = GetLastError();
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}
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}
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}
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}
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if(dwErr == ERROR_SUCCESS)
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{
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//
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// Add it
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//
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dwErr = AccessList.AddSD(pSD,
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pRightsList->SeInfo,
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pRightsList->pwszProperty);
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}
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//
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// Free our buffer, if necessary
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//
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if(cSize > PSD_BASE_LENGTH)
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{
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AccFree(pSD);
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}
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acDebugOut((DEB_TRACE, "Out ReadWindowPropertyRights: %lu\n", dwErr));
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return(dwErr);
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}
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