72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
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// SPDX-License-Identifier: MIT
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package ice
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import (
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"net"
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)
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func parseMulticastAnswerAddr(in net.Addr) (net.IP, bool) {
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switch addr := in.(type) {
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case *net.IPAddr:
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return addr.IP, true
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case *net.UDPAddr:
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return addr.IP, true
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case *net.TCPAddr:
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return addr.IP, true
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}
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return nil, false
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}
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func parseAddr(in net.Addr) (net.IP, int, NetworkType, bool) {
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switch addr := in.(type) {
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case *net.UDPAddr:
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return addr.IP, addr.Port, NetworkTypeUDP4, true
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case *net.TCPAddr:
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return addr.IP, addr.Port, NetworkTypeTCP4, true
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}
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return nil, 0, 0, false
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}
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func createAddr(network NetworkType, ip net.IP, port int) net.Addr {
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switch {
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case network.IsTCP():
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return &net.TCPAddr{IP: ip, Port: port}
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default:
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return &net.UDPAddr{IP: ip, Port: port}
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}
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}
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func addrEqual(a, b net.Addr) bool {
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aIP, aPort, aType, aOk := parseAddr(a)
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if !aOk {
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return false
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}
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bIP, bPort, bType, bOk := parseAddr(b)
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if !bOk {
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return false
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}
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return aType == bType && aIP.Equal(bIP) && aPort == bPort
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}
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// AddrPort is an IP and a port number.
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type AddrPort [18]byte
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func toAddrPort(addr net.Addr) AddrPort {
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var ap AddrPort
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switch addr := addr.(type) {
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case *net.UDPAddr:
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copy(ap[:16], addr.IP.To16())
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ap[16] = uint8(addr.Port >> 8)
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ap[17] = uint8(addr.Port)
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case *net.TCPAddr:
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copy(ap[:16], addr.IP.To16())
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ap[16] = uint8(addr.Port >> 8)
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ap[17] = uint8(addr.Port)
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}
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return ap
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}
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