appaddr.go

// Copyright 2018 ETH Zurich
// Copyright 2019 ETH Zurich, Anapaya Systems
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package addr

import (
	"fmt"
	"net"
)

type AppAddr struct {
	L3 HostAddr
	L4 uint16
}

func AppAddrFromUDP(a *net.UDPAddr) *AppAddr {
	if a == nil {
		return nil
	}
	return &AppAddr{
		L3: HostFromIP(append(a.IP[:0:0], a.IP...)),
		L4: uint16(a.Port),
	}
}

func (a *AppAddr) Copy() *AppAddr {
	if a == nil {
		return nil
	}
	var l3 HostAddr
	if a.L3 != nil {
		l3 = a.L3.Copy()
	}
	return &AppAddr{L3: l3, L4: a.L4}
}

func (a *AppAddr) Equal(o *AppAddr) bool {
	if (a == nil) || (o == nil) {
		return a == o
	}
	return a.L3.Equal(o.L3) && a.L4 == o.L4
}

func (a *AppAddr) EqType(o *AppAddr) bool {
	if (a == nil) || (o == nil) {
		return a == o
	}
	return a.L3.Type() == o.L3.Type()
}

func (a *AppAddr) Network() string {
	// FIXME implement proper network
	// Should we report Go style, ie. udp4, udp6, etc.
	return "AppAddr"
}

func (a *AppAddr) String() string {
	return fmt.Sprintf("[%v]:%d", a.L3, a.L4)
}