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