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#pragma once
#include "ip.h"
#include "socket.h"
#include <util/generic/ptr.h>
#include <util/generic/string.h>
namespace NAddr {
class IRemoteAddr {
public:
virtual ~IRemoteAddr() = default;
virtual const sockaddr* Addr() const = 0;
virtual socklen_t Len() const = 0;
};
using IRemoteAddrPtr = THolder<IRemoteAddr>;
using IRemoteAddrRef = TAtomicSharedPtr<NAddr::IRemoteAddr>;
IRemoteAddrPtr GetSockAddr(SOCKET s);
IRemoteAddrPtr GetPeerAddr(SOCKET s);
void PrintHost(IOutputStream& out, const IRemoteAddr& addr);
TString PrintHost(const IRemoteAddr& addr);
TString PrintHostAndPort(const IRemoteAddr& addr);
bool IsLoopback(const IRemoteAddr& addr);
bool IsSame(const IRemoteAddr& lhs, const IRemoteAddr& rhs);
socklen_t SockAddrLength(const sockaddr* addr);
//for accept, recvfrom - see LenPtr()
class TOpaqueAddr: public IRemoteAddr {
public:
inline TOpaqueAddr() noexcept
: L_(sizeof(S_))
{
Zero(S_);
}
inline TOpaqueAddr(const IRemoteAddr* addr) noexcept {
Assign(addr->Addr(), addr->Len());
}
inline TOpaqueAddr(const sockaddr* addr) {
Assign(addr, SockAddrLength(addr));
}
const sockaddr* Addr() const override {
return MutableAddr();
}
socklen_t Len() const override {
return L_;
}
inline sockaddr* MutableAddr() const noexcept {
return (sockaddr*)&S_;
}
inline socklen_t* LenPtr() noexcept {
return &L_;
}
private:
inline void Assign(const sockaddr* addr, socklen_t len) noexcept {
L_ = len;
memcpy(MutableAddr(), addr, L_);
}
private:
sockaddr_storage S_;
socklen_t L_;
};
//for TNetworkAddress
class TAddrInfo: public IRemoteAddr {
public:
inline TAddrInfo(const addrinfo* ai) noexcept
: AI_(ai)
{
}
const sockaddr* Addr() const override {
return AI_->ai_addr;
}
socklen_t Len() const override {
return (socklen_t)AI_->ai_addrlen;
}
private:
const addrinfo* const AI_;
};
//compat, for TIpAddress
class TIPv4Addr: public IRemoteAddr {
public:
inline TIPv4Addr(const TIpAddress& addr) noexcept
: A_(addr)
{
}
const sockaddr* Addr() const override {
return A_;
}
socklen_t Len() const override {
return A_;
}
private:
const TIpAddress A_;
};
//same, for ipv6 addresses
class TIPv6Addr: public IRemoteAddr {
public:
inline TIPv6Addr(const sockaddr_in6& a) noexcept
: A_(a)
{
}
const sockaddr* Addr() const override {
return (sockaddr*)&A_;
}
socklen_t Len() const override {
return sizeof(A_);
}
private:
const sockaddr_in6 A_;
};
}
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