105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
//
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// Broadbnd.cpp
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//
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// Code for keeping track of which NIC is the user's broadband NIC.
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// NOTE: this may be replaced by standard ICS APIs.
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//
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// History:
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//
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// 9/29/1999 KenSh Created from JetNet sources
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// 11/03/1999 KenSh Fixed so it uses proper registry keys
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//
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#include "stdafx.h"
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#include "NetConn.h"
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#include "nconnwrap.h"
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static const TCHAR c_szAppRegKey[] = _T("Software\\Microsoft\\Windows\\CurrentVersion\\HomeNetWizard");
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static const TCHAR c_szRegVal_Broadband[] = _T("BroadbandAdapter");
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// Did the user pick this adapter as their broadband connection either in Setup
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// or in the diagnostic app?
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BOOL WINAPI IsAdapterBroadband(const NETADAPTER* pAdapter)
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{
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CRegistry reg;
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if (!reg.OpenKey(HKEY_LOCAL_MACHINE, c_szAppRegKey, KEY_READ))
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{
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return (pAdapter->bIcsStatus == ICS_EXTERNAL);
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}
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if (pAdapter->bNicType == NIC_VIRTUAL || pAdapter->bNetType != NETTYPE_LAN)
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return FALSE; // not an ethernet NIC, therefore not broadband
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TCHAR szAdapterNumber[20];
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if (reg.QueryStringValue(c_szRegVal_Broadband, szAdapterNumber, _countof(szAdapterNumber)))
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{
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return (0 == lstrcmpi(FindFileTitle(pAdapter->szClassKey), szAdapterNumber));
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}
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else
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{
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return FALSE;
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}
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}
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// Saves info about the user's broadband selection into the registry
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// Adapter number is FindFileTitle(pAdapter->szClassKey)
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void WINAPI SaveBroadbandSettings(LPCSTR pszBroadbandAdapterNumber)
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{
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CRegistry reg;
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if (reg.CreateKey(HKEY_LOCAL_MACHINE, c_szAppRegKey))
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{
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// No high speed connection? then don't save one.
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if (pszBroadbandAdapterNumber == NULL || *pszBroadbandAdapterNumber == _T('\0'))
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{
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reg.DeleteValue(c_szRegVal_Broadband);
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}
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else
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{
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// Save the enum key of the NIC we want to use
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reg.SetStringValue(c_szRegVal_Broadband, pszBroadbandAdapterNumber);
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}
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}
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}
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#if 0 // old JetNet function not used by Home Networking Wizard
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// Loads current broadband settings from the registry, and updates the registry
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// if we now have more information about a recently installed broadband NIC
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BOOL WINAPI UpdateBroadbandSettings(LPTSTR pszEnumKeyBuf, int cchEnumKeyBuf)
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{
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ASSERT(pszEnumKeyBuf != NULL);
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*pszEnumKeyBuf = '\0';
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CRegistry reg;
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if (reg.OpenKey(HKEY_LOCAL_MACHINE, c_szBroadbandRegKey))
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{
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if (reg.QueryStringValue("BroadbandYes", pszEnumKeyBuf, cchEnumKeyBuf))
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goto done; // we already have a particular broadband NIC selected
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NETADAPTER* prgAdapters;
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int cAdapters = EnumNetAdapters(&prgAdapters);
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NETADAPTER* pBroadbandAdapter = NULL;
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for (int iAdapter = 0; iAdapter < cAdapters; iAdapter++)
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{
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NETADAPTER* pAdapter = &prgAdapters[iAdapter];
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if (IsAdapterBroadband(pAdapter))
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{
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pBroadbandAdapter = pAdapter;
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break;
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}
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}
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if (pBroadbandAdapter != NULL)
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{
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SaveBroadbandSettings(pBroadbandAdapter->szEnumKey);
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lstrcpyn(pszEnumKeyBuf, pBroadbandAdapter->szEnumKey, cchEnumKeyBuf);
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}
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NetConnFree(prgAdapters);
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}
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done:
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return (*pszEnumKeyBuf != '\0');
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}
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#endif // 0
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