92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
|
|
||
|
// IPLookup.cpp
|
||
|
|
||
|
// Implements the cIPLookup class representing an IP-to-hostname lookup in progress.
|
||
|
|
||
|
#include "Globals.h"
|
||
|
#include "IPLookup.h"
|
||
|
#include <event2/dns.h>
|
||
|
#include "NetworkSingleton.h"
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
////////////////////////////////////////////////////////////////////////////////
|
||
|
// cIPLookup:
|
||
|
|
||
|
cIPLookup::cIPLookup(const AString & a_IP, cNetwork::cResolveNameCallbacksPtr a_Callbacks):
|
||
|
m_Callbacks(a_Callbacks),
|
||
|
m_IP(a_IP)
|
||
|
{
|
||
|
sockaddr_storage sa;
|
||
|
int salen = static_cast<int>(sizeof(sa));
|
||
|
memset(&sa, 0, sizeof(sa));
|
||
|
evutil_parse_sockaddr_port(a_IP.c_str(), reinterpret_cast<sockaddr *>(&sa), &salen);
|
||
|
switch (sa.ss_family)
|
||
|
{
|
||
|
case AF_INET:
|
||
|
{
|
||
|
sockaddr_in * sa4 = reinterpret_cast<sockaddr_in *>(&sa);
|
||
|
evdns_base_resolve_reverse(cNetworkSingleton::Get().GetDNSBase(), &(sa4->sin_addr), 0, Callback, this);
|
||
|
break;
|
||
|
}
|
||
|
case AF_INET6:
|
||
|
{
|
||
|
sockaddr_in6 * sa6 = reinterpret_cast<sockaddr_in6 *>(&sa);
|
||
|
evdns_base_resolve_reverse_ipv6(cNetworkSingleton::Get().GetDNSBase(), &(sa6->sin6_addr), 0, Callback, this);
|
||
|
break;
|
||
|
}
|
||
|
default:
|
||
|
{
|
||
|
LOGWARNING("%s: Unknown address family: %d", __FUNCTION__, sa.ss_family);
|
||
|
ASSERT(!"Unknown address family");
|
||
|
break;
|
||
|
}
|
||
|
} // switch (address family)
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
void cIPLookup::Callback(int a_Result, char a_Type, int a_Count, int a_Ttl, void * a_Addresses, void * a_Self)
|
||
|
{
|
||
|
// Get the Self class:
|
||
|
cIPLookup * Self = reinterpret_cast<cIPLookup *>(a_Self);
|
||
|
ASSERT(Self != nullptr);
|
||
|
|
||
|
// Call the proper callback based on the event received:
|
||
|
if ((a_Result != 0) || (a_Addresses == nullptr))
|
||
|
{
|
||
|
// An error has occurred, notify the error callback:
|
||
|
Self->m_Callbacks->OnError(a_Result);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
// Call the success handler:
|
||
|
Self->m_Callbacks->OnNameResolved(*(reinterpret_cast<char **>(a_Addresses)), Self->m_IP);
|
||
|
Self->m_Callbacks->OnFinished();
|
||
|
}
|
||
|
cNetworkSingleton::Get().RemoveIPLookup(Self);
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
////////////////////////////////////////////////////////////////////////////////
|
||
|
// cNetwork API:
|
||
|
|
||
|
bool cNetwork::IPToHostName(
|
||
|
const AString & a_IP,
|
||
|
cNetwork::cResolveNameCallbacksPtr a_Callbacks
|
||
|
)
|
||
|
{
|
||
|
return cNetworkSingleton::Get().IPToHostName(a_IP, a_Callbacks);
|
||
|
}
|
||
|
|
||
|
|
||
|
|
||
|
|