1 | #pragma once |
2 | |
3 | #include <common/Types.h> |
4 | #include <Poco/Net/IPAddress.h> |
5 | |
6 | |
7 | namespace Poco |
8 | { |
9 | namespace Net |
10 | { |
11 | class SocketAddress; |
12 | } |
13 | } |
14 | |
15 | namespace DB |
16 | { |
17 | /** Lets you check if the address is similar to `localhost`. |
18 | * The purpose of this check is usually to make an assumption, |
19 | * that when we go to this address via the Internet, we'll get to ourselves. |
20 | * Please note that this check is not accurate: |
21 | * - the address is simply compared to the addresses of the network interfaces; |
22 | * - only the first address is taken for each network interface; |
23 | * - the routing rules that affect which network interface we go to the specified address are not checked. |
24 | */ |
25 | bool isLocalAddress(const Poco::Net::SocketAddress & address, UInt16 clickhouse_port); |
26 | bool isLocalAddress(const Poco::Net::SocketAddress & address); |
27 | bool isLocalAddress(const Poco::Net::IPAddress & address); |
28 | |
29 | /// Returns number of different bytes in hostnames, used for load balancing |
30 | size_t getHostNameDifference(const std::string & local_hostname, const std::string & host); |
31 | } |
32 | |