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ip_port.go
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ip_port.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package ips
import (
"errors"
"fmt"
"net"
"strconv"
)
var errBadIP = errors.New("bad ip format")
// An IP and a port.
type IPPort struct {
IP net.IP `json:"ip"`
Port uint16 `json:"port"`
}
func (ipPort IPPort) Equal(other IPPort) bool {
return ipPort.Port == other.Port && ipPort.IP.Equal(other.IP)
}
func (ipPort IPPort) String() string {
return net.JoinHostPort(ipPort.IP.String(), fmt.Sprintf("%d", ipPort.Port))
}
// IsZero returns if the IP or port is zeroed out
func (ipPort IPPort) IsZero() bool {
ip := ipPort.IP
return ipPort.Port == 0 ||
len(ip) == 0 ||
ip.Equal(net.IPv4zero) ||
ip.Equal(net.IPv6zero)
}
func ToIPPort(str string) (IPPort, error) {
host, portStr, err := net.SplitHostPort(str)
if err != nil {
return IPPort{}, errBadIP
}
port, err := strconv.ParseUint(portStr, 10 /*=base*/, 16 /*=size*/)
if err != nil {
// TODO: Should this return a locally defined error? (e.g. errBadPort)
return IPPort{}, err
}
ip := net.ParseIP(host)
if ip == nil {
return IPPort{}, errBadIP
}
return IPPort{
IP: ip,
Port: uint16(port),
}, nil
}