81 lines
1.6 KiB
C++
81 lines
1.6 KiB
C++
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// NameLookup.cpp
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// Implements a DNS name lookup using the LibEvent-based cNetwork API
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#include "Globals.h"
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#include <thread>
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#include "OSSupport/Event.h"
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#include "OSSupport/Network.h"
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class cFinishLookupCallbacks:
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public cNetwork::cResolveNameCallbacks
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{
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cEvent & m_Event;
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virtual void OnNameResolved(const AString & a_Name, const AString & a_IP) override
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{
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LOGD("%s resolves to IP %s", a_Name.c_str(), a_IP.c_str());
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}
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virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override
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{
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LOGD("Error %d (%s) while performing lookup!", a_ErrorCode, a_ErrorMsg.c_str());
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exit(a_ErrorCode);
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}
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virtual void OnFinished(void) override
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{
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LOGD("Resolving finished.");
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m_Event.Set();
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}
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public:
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cFinishLookupCallbacks(cEvent & a_Event):
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m_Event(a_Event)
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{
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}
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};
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int main()
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{
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cEvent evtFinish;
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// Look up google.com (has multiple IP addresses):
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LOGD("Network test: Looking up google.com");
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if (!cNetwork::HostnameToIP("google.com", std::make_shared<cFinishLookupCallbacks>(evtFinish)))
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{
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LOGWARNING("Cannot resolve google.com to IP");
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abort();
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}
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LOGD("Name lookup has been successfully queued");
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evtFinish.Wait();
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LOGD("Lookup finished.");
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// Look up 8.8.8.8 (Google free DNS):
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LOGD("Network test: Looking up IP 8.8.8.8");
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if (!cNetwork::IPToHostName("8.8.8.8", std::make_shared<cFinishLookupCallbacks>(evtFinish)))
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{
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LOGWARNING("Cannot resolve 8.8.8.8 to name");
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abort();
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}
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LOGD("IP lookup has been successfully queued");
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evtFinish.Wait();
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LOGD("IP lookup finished.");
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LOGD("Network test finished");
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return 0;
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}
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