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953 lines
23 KiB
953 lines
23 KiB
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1998, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// iasparms.cpp
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//
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// SYNOPSIS
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//
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// Defines functions for storing and retrieving (name, value) pairs from
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// the SAM UserParameters field.
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//
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// MODIFICATION HISTORY
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//
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// 10/16/1998 Original version.
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// 02/11/1999 Add RasUser0 functions.
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// 02/24/1999 Treat invalid UserParameters as no dialin.
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// 03/16/1999 Truncate callback number if too long.
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//
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///////////////////////////////////////////////////////////////////////////////
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <stdio.h>
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#define IASSAMAPI
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#include <iasapi.h>
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#include <iasparms.h>
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//////////
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// I included the Netp function declarations here to avoid dependency on
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// the net project.
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//////////
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DECLSPEC_IMPORT
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NTSTATUS
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NTAPI
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NetpParmsSetUserProperty (
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IN LPWSTR UserParms,
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IN LPWSTR Property,
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IN UNICODE_STRING PropertyValue,
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IN WCHAR PropertyFlag,
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OUT LPWSTR * pNewUserParms,
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OUT BOOL * Update
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);
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DECLSPEC_IMPORT
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NTSTATUS
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NTAPI
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NetpParmsQueryUserProperty (
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IN LPWSTR UserParms,
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IN LPWSTR Property,
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OUT PWCHAR PropertyFlag,
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OUT PUNICODE_STRING PropertyValue
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);
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DECLSPEC_IMPORT
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VOID
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NTAPI
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NetpParmsUserPropertyFree (
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LPWSTR NewUserParms
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);
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//////////
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// Concatenates two BSTR's and returns the result. The caller is responsible
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// for freeing the returned string.
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//////////
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BSTR
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WINAPI
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ConcatentateBSTRs(
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IN CONST OLECHAR *bstr1,
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IN CONST OLECHAR *bstr2
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)
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{
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UINT len1, len2;
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BSTR retval;
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// Compute the lengths of the two strings.
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len1 = bstr1 ? SysStringByteLen((BSTR)bstr1) : 0;
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len2 = bstr2 ? SysStringByteLen((BSTR)bstr2) : 0;
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// Allocate memory for the result.
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retval = SysAllocStringByteLen(NULL, len1 + len2);
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if (retval)
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{
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// Copy in the first string.
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if (bstr1)
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{
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memcpy(retval, bstr1, len1 + sizeof(WCHAR));
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}
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// Copy in the second string.
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if (bstr2)
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{
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memcpy((PBYTE)retval + len1, bstr2, len2 + sizeof(WCHAR));
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}
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}
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return retval;
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}
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//////////
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// Saves a single-valued VARIANT (i.e., not a SAFEARRAY) to a string.
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//////////
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HRESULT
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WINAPI
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SaveSingleVariantToString(
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IN CONST VARIANT *pvarSrc,
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OUT BSTR *pbstrDest
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)
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{
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HRESULT hr;
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VARIANT v;
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UINT len;
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OLECHAR tag[18]; // 5 + 1 + 10 + 1 + 1
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// Coerce the VARIANT to a BSTR.
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VariantInit(&v);
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hr = IASVariantChangeType(
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&v,
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(LPVARIANT)pvarSrc,
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0,
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VT_BSTR
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);
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if (FAILED(hr)) { return hr; }
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// Compute the length of the header and the data.
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len = SysStringLen(V_BSTR(&v));
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len += swprintf(tag, L"%hu:%lu:", V_VT(pvarSrc), len);
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// Allocate the result string.
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*pbstrDest = SysAllocStringLen(NULL, len);
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if (*pbstrDest != NULL)
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{
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// Copy in the tag and the data.
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wcscat(wcscpy(*pbstrDest, tag), V_BSTR(&v));
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}
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else
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{
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hr = E_OUTOFMEMORY;
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}
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// Clear the intermediate string.
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VariantClear(&v);
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return hr;
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}
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//////////
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// Loads a single-valued VARIANT (i.e., not a SAFEARRAY) from a string.
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// Also returns a pointer to where the scan stopped.
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//////////
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HRESULT
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WINAPI
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LoadSingleVariantFromString(
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IN PCWSTR pszSrc,
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IN UINT cSrcLen,
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OUT VARIANT *pvarDest,
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OUT PCWSTR *ppszEnd
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)
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{
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PCWSTR nptr;
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VARTYPE vt;
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PWSTR endptr;
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ULONG len;
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VARIANT v;
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HRESULT hr;
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// Initialize the cursor.
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nptr = pszSrc;
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// Read the VARTYPE token.
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vt = (VARTYPE)wcstoul(nptr, &endptr, 10);
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if (endptr == nptr || *endptr != L':') { return E_INVALIDARG; }
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nptr = endptr + 1;
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// Read the length token.
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len = wcstoul(nptr, &endptr, 10);
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if (endptr == nptr || *endptr != L':') { return E_INVALIDARG; }
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nptr = endptr + 1;
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// Make sure there's enough characters left for the data.
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if (nptr + len > pszSrc + cSrcLen) { return E_INVALIDARG; }
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// Read the BSTR data into a VARIANT.
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V_VT(&v) = VT_BSTR;
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V_BSTR(&v) = SysAllocStringLen(nptr, len);
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if (V_BSTR(&v) == NULL) { return E_OUTOFMEMORY; }
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// Coerce the VARIANT to the desired type.
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hr = IASVariantChangeType(
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pvarDest,
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&v,
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0,
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vt
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);
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// Clear the intermediate string.
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VariantClear(&v);
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// Return the position where the scan stopped.
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*ppszEnd = nptr + len;
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return hr;
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}
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//////////
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// Saves a VARIANT to a string. The caller is responsible for freeing the
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// returned string.
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//////////
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HRESULT
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WINAPI
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IASSaveVariantToString(
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IN CONST VARIANT *pvarSrc,
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OUT BSTR *pbstrDest
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)
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{
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HRESULT hr;
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SAFEARRAY *psa;
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LONG lowerBound, upperBound, idx;
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VARIANT *data;
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BSTR item, newResult;
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// Check the input arguments.
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if (pvarSrc == NULL || pbstrDest == NULL) { return E_POINTER; }
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// Initialize the return parameter.
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*pbstrDest = NULL;
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// Is this an array ?
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if (V_VT(pvarSrc) != (VT_VARIANT | VT_ARRAY))
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{
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// No, so we can delegate and bail.
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return SaveSingleVariantToString(pvarSrc, pbstrDest);
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}
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// Yes, so extract the SAFEARRAY.
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psa = V_ARRAY(pvarSrc);
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// We only handle one-dimensional arrays.
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if (SafeArrayGetDim(psa) != 1) { return DISP_E_TYPEMISMATCH; }
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// Get the array bounds.
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hr = SafeArrayGetLBound(psa, 1, &lowerBound);
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if (FAILED(hr)) { return hr; }
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hr = SafeArrayGetUBound(psa, 1, &upperBound);
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if (FAILED(hr)) { return hr; }
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// Get the embedded array of VARIANTs.
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hr = SafeArrayAccessData(psa, (PVOID*)&data);
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// Loop through each VARIANT in the array.
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for (idx = lowerBound; idx <= upperBound; ++idx, ++data)
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{
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// Save the VARIANT into a BSTR.
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hr = SaveSingleVariantToString(data, &item);
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if (FAILED(hr)) { break; }
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// Merge this into the result ...
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newResult = ConcatentateBSTRs(*pbstrDest, item);
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// ... and free the old strings.
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SysFreeString(*pbstrDest);
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SysFreeString(item);
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// Store the new result.
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*pbstrDest = newResult;
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if (!newResult)
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{
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hr = E_OUTOFMEMORY;
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break;
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}
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}
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// If anything went wrong, clean-up the partial result.
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if (FAILED(hr))
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{
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SysFreeString(*pbstrDest);
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*pbstrDest = NULL;
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}
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// Unlock the array.
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SafeArrayUnaccessData(psa);
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return hr;
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}
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//////////
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// Loads a VARIANT from a string. The caller is responsible for freeing the
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// returned VARIANT.
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//////////
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HRESULT
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WINAPI
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IASLoadVariantFromString(
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IN PCWSTR pszSrc,
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IN UINT cSrcLen,
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OUT VARIANT *pvarDest
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)
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{
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PCWSTR end;
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HRESULT hr;
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SAFEARRAYBOUND bound;
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SAFEARRAY *psa;
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LONG index;
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VARIANT* item;
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// Check the parameters.
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if (pszSrc == NULL || pvarDest == NULL) { return E_POINTER; }
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// Initialize the out parameter.
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VariantInit(pvarDest);
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// Compute the end of the buffer.
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end = pszSrc + cSrcLen;
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// Go for the quick score on a single-valued property.
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hr = LoadSingleVariantFromString(
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pszSrc,
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cSrcLen,
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pvarDest,
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&pszSrc
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);
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if (FAILED(hr) || pszSrc == end) { return hr; }
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// Create a SAFEARRAY of VARIANTs to hold the array elements.
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// We know we have at least two elements.
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bound.cElements = 2;
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bound.lLbound = 0;
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psa = SafeArrayCreate(VT_VARIANT, 1, &bound);
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if (psa == NULL)
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{
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VariantClear(pvarDest);
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return E_OUTOFMEMORY;
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}
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// Store the VARIANT we already converted.
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index = 0;
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SafeArrayPtrOfIndex(psa, &index, (PVOID*)&item);
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memcpy(item, pvarDest, sizeof(VARIANT));
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// Now put the SAFEARRAY into the returned VARIANT.
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V_VT(pvarDest) = VT_ARRAY | VT_VARIANT;
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V_ARRAY(pvarDest) = psa;
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do
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{
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// Get the next element in the array.
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++index;
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hr = SafeArrayPtrOfIndex(psa, &index, (PVOID*)&item);
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if (FAILED(hr)) { break; }
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// Load the next value.
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hr = LoadSingleVariantFromString(
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pszSrc,
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(UINT)(end - pszSrc),
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item,
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&pszSrc
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);
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if (FAILED(hr) || pszSrc == end) { break; }
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// We must have at least one more element, so grow the array.
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++bound.cElements;
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hr = SafeArrayRedim(psa, &bound);
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} while (SUCCEEDED(hr));
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// If we failed, clean-up any partial results.
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if (FAILED(hr)) { VariantClear(pvarDest); }
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return hr;
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}
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HRESULT
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WINAPI
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IASParmsSetUserProperty(
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IN PCWSTR pszUserParms,
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IN PCWSTR pszName,
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IN CONST VARIANT *pvarValue,
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OUT PWSTR *ppszNewUserParms
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)
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{
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BSTR bstrValue;
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UNICODE_STRING uniValue;
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NTSTATUS status;
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HRESULT hr;
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BOOL update;
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// Check the parameters.
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if (pvarValue == NULL || ppszNewUserParms == NULL) { return E_POINTER; }
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// Initialize the out parameter.
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*ppszNewUserParms = NULL;
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// Is the VARIANT empty ?
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if (V_VT(pvarValue) != VT_EMPTY)
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{
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// No, so save it to a string.
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hr = IASSaveVariantToString(
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pvarValue,
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&bstrValue
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);
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if (FAILED(hr)) { return hr; }
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RtlInitUnicodeString(&uniValue, bstrValue);
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}
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else
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{
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// Yes, so we're actually going to erase the property.
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bstrValue = NULL;
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memset(&uniValue, 0, sizeof(UNICODE_STRING));
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}
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// Write the property to UserParms.
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status = NetpParmsSetUserProperty(
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(PWSTR)pszUserParms,
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(PWSTR)pszName,
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uniValue,
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0,
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ppszNewUserParms,
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&update
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);
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if (NT_SUCCESS(status))
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{
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hr = S_OK;
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}
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else
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{
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status = RtlNtStatusToDosError(status);
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hr = HRESULT_FROM_WIN32(status);
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}
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// Free the BSTR value.
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SysFreeString(bstrValue);
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return hr;
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}
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HRESULT
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WINAPI
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IASParmsQueryUserProperty(
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IN PCWSTR pszUserParms,
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IN PCWSTR pszName,
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OUT VARIANT *pvarValue
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)
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{
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NTSTATUS status;
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HRESULT hr;
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WCHAR flag;
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UNICODE_STRING uniValue;
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// Check the parameters.
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if (pvarValue == NULL) { return E_POINTER; }
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// Initialize the out parameter.
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VariantInit(pvarValue);
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// Get the property from UserParms.
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status = NetpParmsQueryUserProperty(
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(PWSTR)pszUserParms,
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(PWSTR)pszName,
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&flag,
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&uniValue
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);
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if (NT_SUCCESS(status))
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{
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if (uniValue.Buffer != NULL)
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{
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// We got a string so convert it to a VARIANT ...
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hr = IASLoadVariantFromString(
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uniValue.Buffer,
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uniValue.Length / sizeof (WCHAR),
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pvarValue
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);
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// ... and free the string.
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LocalFree(uniValue.Buffer);
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}
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else
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{
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// Buffer is zero-length, so we return VT_EMPTY.
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hr = S_OK;
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}
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}
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else
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{
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status = RtlNtStatusToDosError(status);
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hr = HRESULT_FROM_WIN32(status);
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}
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return hr;
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}
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VOID
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WINAPI
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IASParmsFreeUserParms(
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IN PWSTR pszNewUserParms
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)
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{
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LocalFree(pszNewUserParms);
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}
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/////////
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// Constants used for compressing/decompressing phone numbers.
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/////////
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CONST WCHAR COMPRESS_MAP[] = L"() tTpPwW,-@*#";
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#define UNPACKED_DIGIT (100)
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#define COMPRESS_MAP_BEGIN (110)
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#define COMPRESS_MAP_END (COMPRESS_MAP_BEGIN + 14)
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#define UNPACKED_OTHER (COMPRESS_MAP_END + 1)
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|
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///////////////////////////////////////////////////////////////////////////////
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//
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// FUNCTION
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//
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// CompressPhoneNumber
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//
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// DESCRIPTION
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//
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// Bizarre algorithm used to compress phone numbers stored in the
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// usr_parms field.
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//
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///////////////////////////////////////////////////////////////////////////////
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VOID
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WINAPI
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CompressPhoneNumber(
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IN PCWSTR uncompressed,
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OUT PWSTR compressed
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)
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{
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BOOL packed = FALSE;
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for( ; *uncompressed; ++uncompressed)
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{
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switch (*uncompressed)
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{
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case L'0':
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if (packed)
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{
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// Put zero as the second paired digit
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if (*compressed)
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{
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*compressed *= 10;
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++compressed;
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packed = FALSE;
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}
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else
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{
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// We have a zero, we cant put a second zero or that
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// will be a null byte. So, we store the value
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// UNPACKED_DIGIT to fake this.
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*compressed = UNPACKED_DIGIT;
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*(++compressed) = 0;
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packed = TRUE;
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}
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}
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else
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{
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*compressed = 0;
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packed = TRUE;
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}
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break;
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case L'1':
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case L'2':
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case L'3':
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case L'4':
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case L'5':
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case L'6':
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case L'7':
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case L'8':
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case L'9':
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// If this is the second digit that is going to be
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// packed into one byte
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if (packed)
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{
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*compressed *= 10;
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*compressed += *uncompressed - L'0';
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// we need to special case number 32 which maps to a blank
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if (*compressed == L' ')
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{
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*compressed = COMPRESS_MAP_END;
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}
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++compressed;
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packed = FALSE;
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}
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else
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{
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*compressed = *uncompressed - '0';
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packed = TRUE;
|
|
}
|
|
|
|
break;
|
|
|
|
case L'(':
|
|
case L')':
|
|
case L' ':
|
|
case L't':
|
|
case L'T':
|
|
case L'p':
|
|
case L'P':
|
|
case L'w':
|
|
case L'W':
|
|
case L',':
|
|
case L'-':
|
|
case L'@':
|
|
case L'*':
|
|
case L'#':
|
|
|
|
// if the byte was packed then we unpack it
|
|
if (packed)
|
|
{
|
|
*compressed += UNPACKED_DIGIT;
|
|
++compressed;
|
|
packed = FALSE;
|
|
}
|
|
|
|
*compressed = (WCHAR)(COMPRESS_MAP_BEGIN +
|
|
(wcschr(COMPRESS_MAP, *uncompressed) -
|
|
COMPRESS_MAP));
|
|
++compressed;
|
|
break;
|
|
|
|
default:
|
|
|
|
// if the chracter is none of the above specially recognized
|
|
// characters then copy the value + UNPACKED_OTHER to make it
|
|
// possible to decompress at the other end. [ 6/4/96 RamC ]
|
|
if (packed)
|
|
{
|
|
*compressed += UNPACKED_DIGIT;
|
|
++compressed;
|
|
packed = FALSE;
|
|
}
|
|
|
|
*compressed = *uncompressed + UNPACKED_OTHER;
|
|
++compressed;
|
|
}
|
|
}
|
|
|
|
// If we are in the middle of packing something then we unpack it.
|
|
if (packed)
|
|
{
|
|
*compressed += UNPACKED_DIGIT;
|
|
++compressed;
|
|
}
|
|
|
|
// Add the null terminator.
|
|
*compressed = L'\0';
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// FUNCTION
|
|
//
|
|
// DecompressPhoneNumber
|
|
//
|
|
// DESCRIPTION
|
|
//
|
|
// The inverse of CompressPhoneNumber above.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
VOID
|
|
WINAPI
|
|
DecompressPhoneNumber(
|
|
IN PCWSTR compressed,
|
|
OUT PWSTR decompressed
|
|
)
|
|
{
|
|
for( ; *compressed; ++compressed, ++decompressed)
|
|
{
|
|
// If this character is packed, then we unpack it.
|
|
if (*compressed < UNPACKED_DIGIT)
|
|
{
|
|
*decompressed = *compressed / 10 + L'0';
|
|
++decompressed;
|
|
*decompressed = *compressed % 10 + L'0';
|
|
continue;
|
|
}
|
|
|
|
// We need to special case number 32 which maps to a blank.
|
|
if (*compressed == COMPRESS_MAP_END)
|
|
{
|
|
*decompressed = L'3';
|
|
++decompressed;
|
|
*decompressed = L'2';
|
|
continue;
|
|
}
|
|
|
|
// The character is an unpacked digit.
|
|
if (*compressed < COMPRESS_MAP_BEGIN)
|
|
{
|
|
*decompressed = *compressed - UNPACKED_DIGIT + L'0';
|
|
continue;
|
|
}
|
|
|
|
// The character is from the compression map.
|
|
if (*compressed < UNPACKED_OTHER)
|
|
{
|
|
*decompressed = COMPRESS_MAP[*compressed - COMPRESS_MAP_BEGIN];
|
|
continue;
|
|
}
|
|
|
|
// Otherwise the character is unpacked.
|
|
*decompressed = *compressed - UNPACKED_OTHER;
|
|
}
|
|
|
|
// Add a null terminator.
|
|
*decompressed = L'\0';
|
|
}
|
|
|
|
/////////
|
|
// Definition of the downlevel UserParameters.
|
|
/////////
|
|
|
|
#define UP_CLIENT_MAC (L'm')
|
|
#define UP_CLIENT_DIAL (L'd')
|
|
#define UP_LEN_MAC (LM20_UNLEN)
|
|
#define UP_LEN_DIAL (LM20_MAXCOMMENTSZ - 4 - UP_LEN_MAC)
|
|
|
|
typedef struct {
|
|
WCHAR up_MACid;
|
|
WCHAR up_PriGrp[UP_LEN_MAC];
|
|
WCHAR up_MAC_Terminator;
|
|
WCHAR up_DIALid;
|
|
WCHAR up_Privilege;
|
|
WCHAR up_CBNum[UP_LEN_DIAL];
|
|
} USER_PARMS;
|
|
|
|
#define USER_PARMS_LEN (sizeof(USER_PARMS)/sizeof(WCHAR))
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// FUNCTION
|
|
//
|
|
// InitUserParms
|
|
//
|
|
// DESCRIPTION
|
|
//
|
|
// Initializes a USER_PARMS struct to a valid default state.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
VOID
|
|
WINAPI
|
|
InitUserParms(
|
|
IN USER_PARMS* userParms
|
|
)
|
|
{
|
|
WCHAR *i, *end;
|
|
|
|
// Set everything to a space ' '.
|
|
i = (PWCHAR)userParms;
|
|
end = i + USER_PARMS_LEN;
|
|
for ( ; i != end; ++i)
|
|
{
|
|
*i = L' ';
|
|
}
|
|
|
|
// Initialize the 'special' fields.
|
|
userParms->up_MACid = UP_CLIENT_MAC;
|
|
userParms->up_PriGrp[0] = L':';
|
|
userParms->up_DIALid = UP_CLIENT_DIAL;
|
|
userParms->up_Privilege = RASPRIV_NoCallback;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// FUNCTION
|
|
//
|
|
// IASParmsSetRasUser0
|
|
//
|
|
// DESCRIPTION
|
|
//
|
|
// Encodes the RAS_USER_0 struct into the downlevel portion of the
|
|
// UserParameters string.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
DWORD
|
|
WINAPI
|
|
IASParmsSetRasUser0(
|
|
IN OPTIONAL PCWSTR pszOldUserParms,
|
|
IN CONST RAS_USER_0* pRasUser0,
|
|
OUT PWSTR* ppszNewUserParms
|
|
)
|
|
{
|
|
size_t oldLen, newLen, compressedLen;
|
|
USER_PARMS userParms;
|
|
WCHAR compressed[MAX_PHONE_NUMBER_LEN + 1];
|
|
|
|
// Check the pointers.
|
|
if (pRasUser0 == NULL || ppszNewUserParms == NULL)
|
|
{
|
|
return ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
// Initialize the out parameters.
|
|
*ppszNewUserParms = NULL;
|
|
|
|
// Determine the length of the old UserParameters.
|
|
oldLen = pszOldUserParms ? wcslen(pszOldUserParms) : 0;
|
|
|
|
// Initialize the USER_PARMS structure.
|
|
InitUserParms(&userParms);
|
|
|
|
// Preserve the MAC Primary Group if present.
|
|
if (oldLen > UP_LEN_MAC)
|
|
{
|
|
memcpy(
|
|
userParms.up_PriGrp,
|
|
pszOldUserParms + 1,
|
|
sizeof(userParms.up_PriGrp)
|
|
);
|
|
}
|
|
|
|
// Validate the CallbackType and save the compressed phone number.
|
|
switch (pRasUser0->bfPrivilege & RASPRIV_CallbackType)
|
|
{
|
|
case RASPRIV_NoCallback:
|
|
case RASPRIV_AdminSetCallback:
|
|
case RASPRIV_CallerSetCallback:
|
|
{
|
|
|
|
// Compress the phone number.
|
|
CompressPhoneNumber(pRasUser0->wszPhoneNumber, compressed);
|
|
|
|
// Make sure it will fit in USER_PARMS.
|
|
compressedLen = wcslen(compressed);
|
|
if (compressedLen > UP_LEN_DIAL) { compressedLen = UP_LEN_DIAL; }
|
|
|
|
// Store the compressed phone number.
|
|
memcpy(userParms.up_CBNum, compressed, compressedLen * sizeof(WCHAR));
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return ERROR_BAD_FORMAT;
|
|
}
|
|
|
|
// Store the privilege flags.
|
|
userParms.up_Privilege = pRasUser0->bfPrivilege;
|
|
|
|
// Allocate memory for the new UserParameters.
|
|
newLen = max(oldLen, USER_PARMS_LEN);
|
|
*ppszNewUserParms = (PWSTR)LocalAlloc(
|
|
LMEM_FIXED,
|
|
(newLen + 1) * sizeof(WCHAR)
|
|
);
|
|
if (*ppszNewUserParms == NULL) { return ERROR_NOT_ENOUGH_MEMORY; }
|
|
|
|
// Copy in the USER_PARMS struct.
|
|
memcpy(*ppszNewUserParms, &userParms, sizeof(USER_PARMS));
|
|
|
|
// Copy in any extra stuff.
|
|
if (oldLen > USER_PARMS_LEN)
|
|
{
|
|
memcpy(
|
|
*ppszNewUserParms + USER_PARMS_LEN,
|
|
pszOldUserParms + USER_PARMS_LEN,
|
|
(oldLen - USER_PARMS_LEN) * sizeof(WCHAR)
|
|
);
|
|
}
|
|
|
|
// Add the null terminator.
|
|
*(*ppszNewUserParms + newLen) = L'\0';
|
|
|
|
return NO_ERROR;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// FUNCTION
|
|
//
|
|
// IASParmsQueryRasUser0
|
|
//
|
|
// DESCRIPTION
|
|
//
|
|
// Decodes the RAS_USER_0 struct from the UserParameters string.
|
|
//
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
DWORD
|
|
WINAPI
|
|
IASParmsQueryRasUser0(
|
|
IN OPTIONAL PCWSTR pszUserParms,
|
|
OUT PRAS_USER_0 pRasUser0
|
|
)
|
|
{
|
|
USER_PARMS* usrp;
|
|
WCHAR callbackNumber[UP_LEN_DIAL + 1], *p;
|
|
|
|
// Check the pointers.
|
|
if (pRasUser0 == NULL)
|
|
{
|
|
return ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
// Cast the string buffer to a USER_PARMS struct.
|
|
usrp = (USER_PARMS*)pszUserParms;
|
|
|
|
// If parms is not properly initialized, default to no RAS privilege.
|
|
if (!pszUserParms ||
|
|
wcslen(pszUserParms) < USER_PARMS_LEN ||
|
|
usrp->up_DIALid != UP_CLIENT_DIAL)
|
|
{
|
|
pRasUser0->bfPrivilege = RASPRIV_NoCallback;
|
|
pRasUser0->wszPhoneNumber[0] = L'\0';
|
|
return NO_ERROR;
|
|
}
|
|
|
|
// Make a local copy.
|
|
memcpy(callbackNumber, usrp->up_CBNum, sizeof(WCHAR) * UP_LEN_DIAL);
|
|
|
|
// Add a null terminator and null out any trailing blanks.
|
|
p = callbackNumber + UP_LEN_DIAL;
|
|
*p = L'\0';
|
|
while (--p >= callbackNumber && *p == L' ') { *p = L'\0'; }
|
|
|
|
// Sanity check the bfPrivilege field.
|
|
switch(usrp->up_Privilege & RASPRIV_CallbackType)
|
|
{
|
|
case RASPRIV_NoCallback:
|
|
case RASPRIV_AdminSetCallback:
|
|
case RASPRIV_CallerSetCallback:
|
|
{
|
|
pRasUser0->bfPrivilege = (BYTE)usrp->up_Privilege;
|
|
DecompressPhoneNumber(callbackNumber, pRasUser0->wszPhoneNumber);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
pRasUser0->bfPrivilege = RASPRIV_NoCallback;
|
|
pRasUser0->wszPhoneNumber[0] = L'\0';
|
|
}
|
|
}
|
|
|
|
return NO_ERROR;
|
|
}
|