77 lines
2 KiB
C++
77 lines
2 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: srothint.cxx
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//
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// Contents: Implementation of classes used in implementing the ROT hint
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// table in the SCM.
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//
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// History: 20-Jan-95 Ricksa Created
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//
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//--------------------------------------------------------------------------
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#include "act.hxx"
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//+-------------------------------------------------------------------------
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//
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// Member: CScmRotHintTable::CScmRotHintTable
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//
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// Synopsis: Create SCM ROT hint table
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//
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// Arguments: [pwszName] - name for shared memory
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// [psid] - security ID
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//
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// Algorithm: Create and map in shared memory for the hint table
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//
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// History: 20-Jan-95 Ricksa Created
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//
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//--------------------------------------------------------------------------
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CScmRotHintTable::CScmRotHintTable(WCHAR *pwszName)
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{
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#ifndef _CHICAGO_
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BOOL fCreated;
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PSECURITY_DESCRIPTOR pRotSecurityDescriptor = NULL;
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SID_IDENTIFIER_AUTHORITY SidAuthWorld = SECURITY_WORLD_SID_AUTHORITY;
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PSID pSid;
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pSid = 0;
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fCreated = AllocateAndInitializeSid(
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&SidAuthWorld, 1, 0, 0, 0, 0, 0, 0, 0, 0, &pSid );
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Win4Assert(fCreated && "CRotHintTable::CRotHintTable No SID");
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if ( ! fCreated || ! pSid )
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return;
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CAccessInfo AccessInfo(pSid);
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pRotSecurityDescriptor = AccessInfo.IdentifyAccess (
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TRUE,
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FILE_MAP_READ,
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FILE_MAP_ALL_ACCESS
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);
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_hSm = CreateSharedFileMapping(pwszName,
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SCM_HASH_SIZE,
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SCM_HASH_SIZE,
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NULL,
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pRotSecurityDescriptor,
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PAGE_READWRITE,
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(void **) &_pbHintArray,
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&fCreated);
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Win4Assert(_hSm && "CRotHintTable::CRotHintTable create SM failed");
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Win4Assert(fCreated && "CRotHintTable::CRotHintTable Memory not created");
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FreeSid( pSid );
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if (_pbHintArray != NULL)
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{
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memset(_pbHintArray, 0, SCM_HASH_SIZE);
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}
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#endif // _CHICAGO_
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}
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