hxopwaveresolv.cpp
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上传日期:2007-06-06
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文件大小:5k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hxopwaveresolv.h"
- #include "debug.h"
- #include "smartptr.h"
- #define D_RESOLVER 0x10000000
- //#define NO_OPENWAVE_DNS
- UINT32 HXOpwaveResolver::ubMaxHostNameLen = 256L;
- HXOpwaveResolver::HXOpwaveResolver()
- : OpDNSRequest()
- , m_lRefCount(0)
- , m_pResponse(0)
- , m_psHostname(NULL)
- , m_bInitialized(FALSE)
- , m_nNumAddr(0)
- , m_nCurAddrIndex(0)
- , m_dnsStatus(HXR_OK)
- {
- }
- HXOpwaveResolver::~HXOpwaveResolver()
- {
-
- HX_RELEASE(m_pResponse);
- HX_DELETE(m_psHostname);
- }
- /*
- * IUnknown methods
- */
- STDMETHODIMP HXOpwaveResolver::QueryInterface(THIS_
- REFIID riid,
- void** ppvObj)
- {
-
- if (IsEqualIID(riid, IID_IHXResolver))
- {
-
- AddRef();
- *ppvObj = (IHXResolver*)this;
- return HXR_OK;
- }
- else if (IsEqualIID(riid, IID_IUnknown))
- {
- AddRef();
- *ppvObj = (IUnknown*)(IHXResolver*)this;
- return HXR_OK;
- }
-
-
- *ppvObj = NULL;
- return HXR_NOINTERFACE;
-
- }
- STDMETHODIMP_(ULONG32) HXOpwaveResolver::AddRef(THIS)
- {
-
- return InterlockedIncrement(&m_lRefCount);
-
- }
- STDMETHODIMP_(ULONG32)HXOpwaveResolver::Release(THIS)
- {
-
- if (InterlockedDecrement(&m_lRefCount) > 0)
- {
- return m_lRefCount;
- }
-
- delete this;
- return 0;
- }
- /*
- * IHXResolver methods
- */
- STDMETHODIMP HXOpwaveResolver::Init(THIS_ IHXResolverResponse* pResponse)
- {
-
- DPRINTF(D_RESOLVER, ("HXOpwaveResolver::Init()n"));
-
- HX_RELEASE(m_pResponse);
- m_pResponse = pResponse;
-
- if (m_pResponse)
- {
- m_pResponse->AddRef();
- }
-
- m_bInitialized = TRUE;
- return HXR_OK;
-
- }
- STDMETHODIMP HXOpwaveResolver::GetHostByName(THIS_ const char* pHostName)
- {
-
- DPRINTF(D_RESOLVER, ("HXOpwaveResolver::GetHostByName(%s)n", pHostName));
-
- HX_RESULT res = HXR_OK;
-
- if (!pHostName)
- {
- res = HXR_INVALID_PARAMETER;
- }
-
- if (SUCCEEDED(res))
- {
- if (!m_psHostname)
- {
- m_psHostname = new char[ubMaxHostNameLen];
- if (!m_psHostname)
- {
- res = HXR_OUTOFMEMORY;
- }
- }
- }
- if (SUCCEEDED(res))
- {
- strncpy(m_psHostname, pHostName, ubMaxHostNameLen);
- lookupAddr(m_psHostname);
- }
- #ifdef NO_OPENWAVE_DNS
- /// Suppose the pHostName is in decimal form like
- /// 207.188.30.91, we convert it here manually into a UINT32
- UINT32 ipv4Host = 0;
- char* pStop = pHostName;
- char* pHead = pHostName;
- INT32 nShift = 24;
- while (nShift >= 0)
- {
- UINT32 ulTemp = strtoul(pHead, &pStop, 10);
- ipv4Host += ulTemp << nShift;
- pHead = pStop + 1;
- nShift -= 8;
- }
- m_pResponse->GetHostByNameDone(m_dnsStatus, ipv4Host);
- #endif
- return res;
-
- }
- /// OpDNSRequest callback to notify requests
- void
- HXOpwaveResolver::onAddrResult(const ipv4_t *addrs, unsigned numAddrs)
- {
- m_nNumAddr = numAddrs;
- if (addrs && m_nNumAddr > 0)
- {
- m_nCurAddrIndex = 0;
- m_pResponse->GetHostByNameDone(m_dnsStatus, addrs[m_nCurAddrIndex]);
- }
- }
- void
- HXOpwaveResolver::onErrorResult()
- {
- m_dnsStatus = HXR_FAIL;
- }