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32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
#pragma once
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#include <common/types.h>
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#include <Poco/Net/IPAddress.h>
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namespace Poco
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{
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namespace Net
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{
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class SocketAddress;
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}
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}
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namespace DB
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{
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/** Lets you check if the address is similar to `localhost`.
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* The purpose of this check is usually to make an assumption,
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* that when we go to this address via the Internet, we'll get to ourselves.
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* Please note that this check is not accurate:
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* - the address is simply compared to the addresses of the network interfaces;
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* - only the first address is taken for each network interface;
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* - the routing rules that affect which network interface we go to the specified address are not checked.
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*/
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bool isLocalAddress(const Poco::Net::SocketAddress & address, UInt16 clickhouse_port);
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bool isLocalAddress(const Poco::Net::SocketAddress & address);
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bool isLocalAddress(const Poco::Net::IPAddress & address);
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/// Returns number of different bytes in hostnames, used for load balancing
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size_t getHostNameDifference(const std::string & local_hostname, const std::string & host);
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}
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