107 lines
2.4 KiB
C++
107 lines
2.4 KiB
C++
// File: util.cpp
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//
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// General Utilities
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#include "precomp.h"
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#include "avcommon.h"
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#include "util.h"
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static BOOL VersionCheck(PCC_VENDORINFO pVendorInfo, LPCSTR pszVersion)
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{
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return (0 == _StrCmpN((char*)(pVendorInfo->pVersionNumber->pOctetString),
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pszVersion,
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pVendorInfo->pVersionNumber->wOctetStringLength));
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}
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static BOOL ProductCheck(PCC_VENDORINFO pVendorInfo, LPCSTR pszName)
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{
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BOOL fFound = FALSE;
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// Octet string may not be terminated allow for terminator
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int len = pVendorInfo->pProductNumber->wOctetStringLength + 1;
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char* pszPN = new char[len];
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if (NULL != pszPN)
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{
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lstrcpyn(pszPN, (char*)pVendorInfo->pProductNumber->pOctetString, len);
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fFound = (NULL != _StrStr(pszPN, pszName));
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delete[] pszPN;
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}
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return fFound;
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}
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H323VERSION GetH323Version(PCC_VENDORINFO pRemoteVendorInfo)
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{
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if (NULL == pRemoteVendorInfo)
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{
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return H323_Unknown;
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}
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// make sure we are dealing with a Microsoft product
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if ((pRemoteVendorInfo->bCountryCode != USA_H221_COUNTRY_CODE) ||
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(pRemoteVendorInfo->wManufacturerCode != MICROSOFT_H_221_MFG_CODE) ||
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(pRemoteVendorInfo->pProductNumber == NULL) ||
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(pRemoteVendorInfo->pVersionNumber == NULL)
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)
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{
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return H323_Unknown;
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}
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// redundant check to make sure we are a Microsoft H.323 product
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if (!ProductCheck(pRemoteVendorInfo, H323_COMPANYNAME_STR))
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{
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return H323_Unknown;
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}
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// check for NetMeeting in the string
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if (ProductCheck(pRemoteVendorInfo, H323_PRODUCTNAME_SHORT_STR))
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{
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if (VersionCheck(pRemoteVendorInfo, H323_20_PRODUCTRELEASE_STR))
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{
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return H323_NetMeeting20;
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}
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if (VersionCheck(pRemoteVendorInfo, H323_21_PRODUCTRELEASE_STR))
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{
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return H323_NetMeeting21;
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}
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if (VersionCheck(pRemoteVendorInfo, H323_21_SP1_PRODUCTRELEASE_STR))
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{
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return H323_NetMeeting21;
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}
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if (VersionCheck(pRemoteVendorInfo, H323_211_PRODUCTRELEASE_STR))
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{
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return H323_NetMeeting211;
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}
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if (VersionCheck(pRemoteVendorInfo, H323_30_PRODUCTRELEASE_STR))
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{
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return H323_NetMeeting30;
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}
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// must be future version of NetMeeting 3.1
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return H323_NetMeetingFuture;
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}
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// filter out TAPI v3.0
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// their version string is "Version 3.0"
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if (VersionCheck(pRemoteVendorInfo, H323_TAPI30_PRODUCTRELEASE_STR))
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{
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return H323_TAPI30;
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}
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// must be TAPI 3.1, or some other Microsoft product
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return H323_MicrosoftFuture;
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}
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