nebula/udp_all.go

71 lines
1.2 KiB
Go

package nebula
import (
"encoding/json"
"fmt"
"net"
"strconv"
)
type udpAddr struct {
IP net.IP
Port uint16
}
func NewUDPAddr(ip net.IP, port uint16) *udpAddr {
addr := udpAddr{IP: make([]byte, len(ip)), Port: port}
copy(addr.IP, ip)
return &addr
}
func NewUDPAddrFromString(s string) *udpAddr {
ip, port, err := parseIPAndPort(s)
//TODO: handle err
_ = err
return &udpAddr{IP: ip, Port: port}
}
func (ua *udpAddr) Equals(t *udpAddr) bool {
if t == nil || ua == nil {
return t == nil && ua == nil
}
return ua.IP.Equal(t.IP) && ua.Port == t.Port
}
func (ua *udpAddr) String() string {
return net.JoinHostPort(ua.IP.String(), fmt.Sprintf("%v", ua.Port))
}
func (ua *udpAddr) MarshalJSON() ([]byte, error) {
return json.Marshal(m{"ip": ua.IP, "port": ua.Port})
}
func (ua *udpAddr) Copy() *udpAddr {
nu := udpAddr{
Port: ua.Port,
IP: make(net.IP, len(ua.IP)),
}
copy(nu.IP, ua.IP)
return &nu
}
func parseIPAndPort(s string) (net.IP, uint16, error) {
rIp, sPort, err := net.SplitHostPort(s)
if err != nil {
return nil, 0, err
}
addr, err := net.ResolveIPAddr("ip", rIp)
if err != nil {
return nil, 0, err
}
iPort, err := strconv.Atoi(sPort)
if err != nil {
return nil, 0, err
}
return addr.IP, uint16(iPort), nil
}