686 lines
15 KiB
C++
686 lines
15 KiB
C++
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/*++
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Copyright (c) 1995 Microsoft Corporation
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Module Name:
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String.cxx
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Abstract:
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Methods of construction of various kinds of DUALSTRINGARRAYs.
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Author:
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Mario Goertzel [MarioGo]
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Revision History:
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MarioGo 04-01-95 Bits 'n pieces
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MarioGO 01-??-96 STIRNGARRYs replaced by DUALSTRINGARRAYs
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--*/
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#include <or.hxx>
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#include <dcomss.h> // GetProtseq et al
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static CONST WCHAR aCallbackSecurity[] = L"Security=Identification Static True";
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static CONST DWORD dwCallbackSecurityLength = sizeof(aCallbackSecurity)/sizeof(WCHAR);
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RPC_BINDING_HANDLE
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GetBinding(
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IN PWSTR pCompressedBinding
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)
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{
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ASSERT(pCompressedBinding);
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PWSTR pwstrStringBinding;
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PWSTR pwstrProtseq = GetProtseq(*pCompressedBinding);
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PWSTR pwstrT;
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RPC_STATUS Status;
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RPC_BINDING_HANDLE bhReturn;
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BOOL fLocal = FALSE;
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if (!pwstrProtseq)
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{
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return(0);
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}
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int size = OrStringLen(pwstrProtseq) + OrStringLen(pCompressedBinding);
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if (*pCompressedBinding == ID_LPC || *pCompressedBinding == ID_WMSG)
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{
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fLocal = TRUE;
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size += dwCallbackSecurityLength + 1; // +1 for ','
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}
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pwstrStringBinding = (PWSTR) new WCHAR[size];
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if (!pwstrStringBinding)
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{
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return(0);
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}
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OrStringCopy(pwstrStringBinding, pwstrProtseq);
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pwstrT = OrStringSearch(pwstrStringBinding, 0);
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*pwstrT = L':';
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pwstrT++;
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*pwstrT = 0;
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OrStringCopy(pwstrT, pCompressedBinding + 1);
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if (fLocal)
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{
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// We assume we have an endpoint.
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pwstrT = OrStringSearch(pwstrT, 0);
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pwstrT--;
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if (*pwstrT != L']')
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{
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OrDbgPrint(("OR: Local string binding missing endpoint %S\n",
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pwstrStringBinding));
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ASSERT(0);
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return(0);
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}
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*pwstrT = L',';
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pwstrT++;
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OrStringCopy(pwstrT, aCallbackSecurity);
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pwstrT = OrStringSearch(pwstrT, 0);
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*pwstrT = L']';
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*(pwstrT + 1) = 0;
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}
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Status =
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RpcBindingFromStringBinding( pwstrStringBinding,
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&bhReturn);
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#if DBG
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if (Status != RPC_S_OK)
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{
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OrDbgPrint(("OR: Unable to create binding for %S = %d\n",
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pwstrStringBinding,
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Status));
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}
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#endif
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return(bhReturn);
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}
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RPC_BINDING_HANDLE
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GetBindingToOr(
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IN PWSTR pwstrCompressedBinding
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)
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/*++
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Routine Description:
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Gets an RPC binding to a remote object resolver given
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a compressed string binding to the remote object resolver.
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Arguments:
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pwstrCompressedBinding - a compressed string binding without an endpoint.
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Return Value:
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0 - failed to allocate memory or RpcBindingFromStringBinding failed.
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non-NULL - completed okay
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--*/
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{
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PWSTR protseq, endpoint;
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PWSTR strbinding;
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USHORT len;
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RPC_BINDING_HANDLE bh = 0;
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ASSERT(pwstrCompressedBinding);
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ASSERT(*pwstrCompressedBinding != 0);
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protseq = GetProtseq(*pwstrCompressedBinding);
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endpoint = GetEndpoint(*pwstrCompressedBinding);
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if (0 == protseq || 0 == endpoint)
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{
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ASSERT(0);
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return(0);
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}
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len = 4; // ':' '[' ']' and '\0'
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len += OrStringLen(protseq);
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len += OrStringLen(endpoint);
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len += OrStringLen(&pwstrCompressedBinding[1]);
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strbinding = new USHORT[len];
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if (strbinding)
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{
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PWSTR pwstrT;
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OrStringCopy(strbinding, protseq); // protseq
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pwstrT = OrStringSearch(strbinding, 0); // :
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*pwstrT = L':';
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pwstrT++;
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*pwstrT = 0;
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OrStringCat(strbinding, &pwstrCompressedBinding[1]); // network address
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pwstrT = OrStringSearch(strbinding, 0); // [
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*pwstrT = L'[';
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pwstrT++;
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*pwstrT = 0;
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OrStringCat(strbinding, endpoint); // endpoint
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pwstrT = OrStringSearch(strbinding, 0); // ]
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*pwstrT = L']';
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pwstrT++;
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*pwstrT = 0;
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RPC_STATUS status = RpcBindingFromStringBinding(strbinding, &bh);
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ASSERT(bh == 0 || status == RPC_S_OK);
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delete strbinding;
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}
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if (bh == 0)
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{
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OrDbgDetailPrint(("OR: Unable to bind to %S\n", pwstrCompressedBinding + 1));
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}
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return(bh);
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}
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DUALSTRINGARRAY *
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GetStringBinding(
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IN PWSTR pwstrCompressed,
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IN PWSTR pwstrSecurityBindings
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)
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/*++
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Routine Description:
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Converts the compressed string binding into an expanded
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string binding. An enpoint maybe optionally specified.
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Arguments:
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pwstrCompressed - a compressed string binding
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pwstrSecurityBindings - optional security bindings
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too be tacked onto the end of the expanded string binding.
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Terminated by two nulls.
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Return Value:
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NULL - out of memory
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non-NULL - a string binding.
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--*/
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{
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DUALSTRINGARRAY *pT;
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PWSTR protseq;
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USHORT seccount;
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PWSTR t = pwstrSecurityBindings;
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if (t && *t)
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{
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seccount = 0;
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do
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{
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seccount++;
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t++;
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if (*t == 0)
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{
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seccount++;
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t++;
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}
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}
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while(*t);
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seccount++; // final NULL
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}
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else
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{
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// Two nulls only.
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seccount = 2;
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}
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protseq = GetProtseq(*pwstrCompressed);
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int l = OrStringLen(pwstrCompressed) + OrStringLen(protseq) + seccount + 1 + 1;
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pT =(DUALSTRINGARRAY *)midl_user_allocate(sizeof(DUALSTRINGARRAY) + l * sizeof(WCHAR));
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if (!pT)
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{
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return (0);
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}
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pT->wNumEntries = l;
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OrStringCopy(pT->aStringArray, protseq);
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OrStringCat(pT->aStringArray, L":");
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OrStringCat(pT->aStringArray, pwstrCompressed + 1);
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if (pwstrSecurityBindings)
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{
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PWSTR t = pT->aStringArray;
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t = OrStringSearch(t, 0);
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t++;
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*t = 0; // Second NULL on string bindings.
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t++;
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OrMemoryCopy(t, pwstrSecurityBindings, seccount*sizeof(WCHAR));
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}
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else
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{
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// Add three NULLs, total of four.
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PWSTR t = pT->aStringArray;
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t = OrStringSearch(t, 0);
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t[1] = 0;
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t[2] = 0;
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t[3] = 0;
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}
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pT->wSecurityOffset = pT->wNumEntries - seccount;
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ASSERT(dsaValid(pT));
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return(pT);
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}
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ORSTATUS
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ConvertToRemote(
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IN DUALSTRINGARRAY *pdsaLocal,
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OUT DUALSTRINGARRAY **ppdsaRemote
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)
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/* ++
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Parameters:
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pdsaLocal - An array of string bindings with compressed protseqs.
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ppdsaRemote - Will contain only those string bindings in pdsaLocal
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which are not "IsLocal()".
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Note: *ppdsaRemote maybe used as a flag, don't set it to non-NULL
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until it is valid.
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-- */
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{
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int iTotalSize;
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int iSize;
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USHORT *p1, *p2;
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DUALSTRINGARRAY *pdsaT;
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// Size remote array
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// Final null terminator
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iSize = 1;
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p1 = pdsaLocal->aStringArray;
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while(*p1)
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{
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if (! IsLocal(*p1) )
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{
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iSize += OrStringLen(p1) + 1;
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}
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p1 = OrStringSearch(p1, 0) + 1;
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}
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if (iSize == 1)
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{
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iSize = 2; // No non-local strings, need two terminators.
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}
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iTotalSize = iSize + (pdsaLocal->wNumEntries - pdsaLocal->wSecurityOffset);
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pdsaT = new(iTotalSize * sizeof(WCHAR)) DUALSTRINGARRAY;
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if (!pdsaT)
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{
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return(OR_NOMEM);
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}
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pdsaT->wNumEntries = iTotalSize;
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pdsaT->wSecurityOffset = iSize;
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p2 = pdsaT->aStringArray;
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// Copy security bindings
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OrMemoryCopy(p2 + iSize,
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pdsaLocal->aStringArray + pdsaLocal->wSecurityOffset,
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(iTotalSize - iSize) * sizeof(WCHAR));
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if (iSize == 2)
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{
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// No non-local strings, fill in terminators and return.
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*p2 = 0;
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*(p2 + 1) = 0;
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*ppdsaRemote = pdsaT;
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ASSERT(dsaValid(pdsaT));
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return(OR_OK);
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}
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p1 = pdsaLocal->aStringArray;
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while(*p1)
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{
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if ( ! IsLocal(*p1) )
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{
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OrStringCopy(p2, p1);
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p2 = OrStringSearch(p2, 0) + 1;
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}
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p1 = OrStringSearch(p1, 0) + 1;
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}
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*p2 = 0; // Second terminator.
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*ppdsaRemote = pdsaT;
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ASSERT(dsaValid(pdsaT));
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return(OR_OK);
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}
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DUALSTRINGARRAY *
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CompressStringArray(
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IN DUALSTRINGARRAY *pdsaExpanded,
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IN BOOL fSharedMem
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)
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/*++
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Routine Description:
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Converts a stringarray of regular string bindings into a
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compressed (protseq's replaced with WORD id's) array of
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string bindings.
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Arguments:
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pdsaExpanded - the string array to compress.
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Security information is copied.
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Return Value:
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|
0 - failed to allocate memory.
|
|||
|
|
|
|||
|
|
non-0 - compressed string array.
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
{
|
|||
|
|
int i, size;
|
|||
|
|
USHORT *p1, *p2, *p3;
|
|||
|
|
PWSTR pwstr;
|
|||
|
|
DUALSTRINGARRAY *pdsaCompressed;
|
|||
|
|
|
|||
|
|
// Compute size of result.
|
|||
|
|
|
|||
|
|
p1 = pdsaExpanded->aStringArray;
|
|||
|
|
|
|||
|
|
size = pdsaExpanded->wNumEntries - pdsaExpanded->wSecurityOffset;
|
|||
|
|
|
|||
|
|
if (*p1 == 0)
|
|||
|
|
{
|
|||
|
|
size += 2; // two null terminators ONLY.
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
size += 1; // last null terminator
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
while(*p1)
|
|||
|
|
{
|
|||
|
|
int sizeT = OrStringLen(p1);
|
|||
|
|
|
|||
|
|
p2 = OrStringSearch(p1, L':'); // ':' is not valid in protseq.
|
|||
|
|
if (p2)
|
|||
|
|
{
|
|||
|
|
size += sizeT + 1 - (p2 - p1); // proseq len (p2 - p1) become 1 for Id.
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
ASSERT(p2);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
p1 = OrStringSearch(p1, 0) + 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (fSharedMem)
|
|||
|
|
{
|
|||
|
|
pdsaCompressed = (DUALSTRINGARRAY*)
|
|||
|
|
OrMemAlloc(sizeof(DUALSTRINGARRAY) + size * sizeof(WCHAR));
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
pdsaCompressed = (DUALSTRINGARRAY*)
|
|||
|
|
midl_user_allocate(sizeof(DUALSTRINGARRAY) + size * sizeof(WCHAR));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (0 == pdsaCompressed)
|
|||
|
|
{
|
|||
|
|
return(0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
pdsaCompressed->wNumEntries = size;
|
|||
|
|
pdsaCompressed->wSecurityOffset = size - (pdsaExpanded->wNumEntries - pdsaExpanded->wSecurityOffset);
|
|||
|
|
p3 = pdsaCompressed->aStringArray;
|
|||
|
|
*p3 = 0;
|
|||
|
|
|
|||
|
|
p1 = pdsaExpanded->aStringArray;
|
|||
|
|
|
|||
|
|
if (*p1 == 0)
|
|||
|
|
{
|
|||
|
|
// Two null terminators only.
|
|||
|
|
*(p3 + 1) = 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
while(*p1)
|
|||
|
|
{
|
|||
|
|
p2 = OrStringSearch(p1, L':');
|
|||
|
|
if (p2)
|
|||
|
|
{
|
|||
|
|
*p2 = 0;
|
|||
|
|
*p3 = GetProtseqId(p1);
|
|||
|
|
*p2 = L':';
|
|||
|
|
if (*p3 != 0)
|
|||
|
|
{
|
|||
|
|
p3++;
|
|||
|
|
p1 = p2 + 1; // Just after ':'
|
|||
|
|
OrStringCopy(p3, p1);
|
|||
|
|
|
|||
|
|
// Move p3 to start of next string if any.
|
|||
|
|
p3 = OrStringSearch(p3, 0) + 1;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Move p1 to start of next string if any.
|
|||
|
|
p1 = OrStringSearch(p1, 0) + 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Second terminator, p3 already points to it.
|
|||
|
|
*p3 = 0;
|
|||
|
|
|
|||
|
|
// Copy security bindings
|
|||
|
|
OrMemoryCopy(p3 + 1,
|
|||
|
|
pdsaExpanded->aStringArray + pdsaExpanded->wSecurityOffset,
|
|||
|
|
(pdsaExpanded->wNumEntries - pdsaExpanded->wSecurityOffset) * sizeof(WCHAR));
|
|||
|
|
|
|||
|
|
ASSERT(dsaValid(pdsaCompressed));
|
|||
|
|
|
|||
|
|
return(pdsaCompressed);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
PWSTR
|
|||
|
|
FindMatchingProtseq(
|
|||
|
|
IN USHORT cClientProtseqs,
|
|||
|
|
IN USHORT aClientProtseqs[],
|
|||
|
|
IN PWSTR pwstrServerBindings
|
|||
|
|
)
|
|||
|
|
/*++
|
|||
|
|
|
|||
|
|
Routine Description:
|
|||
|
|
|
|||
|
|
Finds the first protseq id in aClientProtseqs which appears in any of
|
|||
|
|
the server bindings.
|
|||
|
|
|
|||
|
|
Arguments:
|
|||
|
|
|
|||
|
|
cClientProtseqs - the number of entries in aClientProtseqs.
|
|||
|
|
aClientProtseqs - Protseq tower id's support by the client.
|
|||
|
|
pwstrServerBindings - compressed array of bindings supported by the server
|
|||
|
|
terminated by two NULLs.
|
|||
|
|
|
|||
|
|
Return Value:
|
|||
|
|
|
|||
|
|
0 - no match found.
|
|||
|
|
non-0 - a pointer into the pwstrCompressedBindings.
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
|
|||
|
|
// Called by server oxid's and processes when checking for lazy use protseq.
|
|||
|
|
{
|
|||
|
|
ULONG i;
|
|||
|
|
|
|||
|
|
if (0 == cClientProtseqs)
|
|||
|
|
{
|
|||
|
|
return(0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
while(*pwstrServerBindings)
|
|||
|
|
{
|
|||
|
|
for(i = 0; i < cClientProtseqs; i++)
|
|||
|
|
{
|
|||
|
|
if (aClientProtseqs[i] == *pwstrServerBindings)
|
|||
|
|
{
|
|||
|
|
return(pwstrServerBindings);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
pwstrServerBindings = OrStringSearch(pwstrServerBindings, 0) + 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return(NULL);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
PWSTR
|
|||
|
|
FindMatchingProtseq(
|
|||
|
|
IN USHORT protseq,
|
|||
|
|
IN PWSTR pwstrCompressedBindings
|
|||
|
|
)
|
|||
|
|
/*++
|
|||
|
|
|
|||
|
|
Routine Description:
|
|||
|
|
|
|||
|
|
Searches a compressed string array for an entry which
|
|||
|
|
matches a particular protseq.
|
|||
|
|
|
|||
|
|
|
|||
|
|
Arguments:
|
|||
|
|
|
|||
|
|
protseq - The protseq to search for.
|
|||
|
|
|
|||
|
|
pwstrCompressedBindings - The bindings to search.
|
|||
|
|
|
|||
|
|
Return Value:
|
|||
|
|
|
|||
|
|
0 - not found
|
|||
|
|
|
|||
|
|
non-0 - a pointer into the pwstrCompressedBindings
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
{
|
|||
|
|
ASSERT(pwstrCompressedBindings);
|
|||
|
|
|
|||
|
|
while(*pwstrCompressedBindings)
|
|||
|
|
{
|
|||
|
|
if (*pwstrCompressedBindings == protseq)
|
|||
|
|
{
|
|||
|
|
return(pwstrCompressedBindings);
|
|||
|
|
}
|
|||
|
|
pwstrCompressedBindings = OrStringSearch(pwstrCompressedBindings, 0) + 1;
|
|||
|
|
}
|
|||
|
|
return(0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
ORSTATUS
|
|||
|
|
MergeBindings(
|
|||
|
|
IN DUALSTRINGARRAY *pdsaStringBindings,
|
|||
|
|
IN DUALSTRINGARRAY *pdsaSecurityBindings,
|
|||
|
|
OUT DUALSTRINGARRAY **ppdsaMergedBindings
|
|||
|
|
)
|
|||
|
|
/*++
|
|||
|
|
|
|||
|
|
Routine Description:
|
|||
|
|
|
|||
|
|
Merges the string bindings from the first param with the security
|
|||
|
|
bindings from the second param to create a new dualstring array.
|
|||
|
|
|
|||
|
|
|
|||
|
|
Arguments:
|
|||
|
|
|
|||
|
|
pdsaStringBindings -- The string bindings supplier
|
|||
|
|
|
|||
|
|
pdsaSecurityBindings -- The security bindings supplier
|
|||
|
|
|
|||
|
|
ppdsaMergedBindings -- the merged result
|
|||
|
|
|
|||
|
|
Return Value:
|
|||
|
|
|
|||
|
|
OR_OK (0) - success
|
|||
|
|
|
|||
|
|
OR_NOMEM - memory allocation failed
|
|||
|
|
|
|||
|
|
--*/
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
ASSERT(dsaValid(pdsaStringBindings));
|
|||
|
|
ASSERT(dsaValid(pdsaSecurityBindings));
|
|||
|
|
|
|||
|
|
USHORT wBindingsSize = pdsaStringBindings->wSecurityOffset;
|
|||
|
|
|
|||
|
|
USHORT wSecuritySize = pdsaSecurityBindings->wNumEntries -
|
|||
|
|
pdsaSecurityBindings->wSecurityOffset;
|
|||
|
|
|
|||
|
|
USHORT wNumEntries = wBindingsSize + wSecuritySize;
|
|||
|
|
|
|||
|
|
DUALSTRINGARRAY *pdsa = (DUALSTRINGARRAY *)
|
|||
|
|
new char[
|
|||
|
|
sizeof(DUALSTRINGARRAY) +
|
|||
|
|
(wNumEntries - 1) * sizeof(WCHAR)
|
|||
|
|
];
|
|||
|
|
|
|||
|
|
if (!pdsa)
|
|||
|
|
{
|
|||
|
|
return OR_NOMEM;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
*ppdsaMergedBindings = pdsa;
|
|||
|
|
|
|||
|
|
pdsa->wNumEntries = wNumEntries;
|
|||
|
|
pdsa->wSecurityOffset = wBindingsSize;
|
|||
|
|
|
|||
|
|
memcpy(
|
|||
|
|
pdsa->aStringArray,
|
|||
|
|
pdsaStringBindings->aStringArray,
|
|||
|
|
wBindingsSize * sizeof(WCHAR)
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
memcpy(
|
|||
|
|
pdsa->aStringArray + pdsa->wSecurityOffset,
|
|||
|
|
pdsaSecurityBindings->aStringArray + pdsaSecurityBindings->wSecurityOffset,
|
|||
|
|
sizeof(WCHAR) * wSecuritySize
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
return OR_OK;
|
|||
|
|
}
|