switch fd.family {
	case syscall.AF_INET, syscall.AF_INET6:
		switch fd.sotype {
		case syscall.SOCK_STREAM:
			return sockaddrToTCP
		case syscall.SOCK_DGRAM:
			return sockaddrToUDP
		case syscall.SOCK_RAW:
			return sockaddrToIP
		}
	case syscall.AF_UNIX:
		switch fd.sotype {
		case syscall.SOCK_STREAM:
			return sockaddrToUnix
		case syscall.SOCK_DGRAM:
			return sockaddrToUnixgram

// license that can be found in the LICENSE file.

//go:build unix || js || wasip1 || windows

package net

import (
	"context"
	"net/netip"
	"syscall"
)

func sockaddrToUDP(sa syscall.Sockaddr) Addr {
	switch sa := sa.(type) {
	case *syscall.SockaddrInet4:
		return &UDPAddr{IP: sa.Addr[0:], Port: sa.Port}
	case *syscall.SockaddrInet6: