57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package flags
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import (
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"errors"
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"net"
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"strconv"
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"strings"
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)
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// IPAddressPort implements the flag.Value interface. The argument
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// is validated as "ip:port".
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type IPAddressPort struct {
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IP string
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Port int
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}
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func (a *IPAddressPort) Set(arg string) error {
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arg = strings.TrimSpace(arg)
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host, portStr, err := net.SplitHostPort(arg)
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if err != nil {
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return err
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}
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if net.ParseIP(host) == nil {
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return errors.New("bad IP in address specification")
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}
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port, err := strconv.Atoi(portStr)
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if err != nil {
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return errors.New("bad port in address specification")
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}
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a.IP = host
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a.Port = port
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return nil
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}
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func (a *IPAddressPort) String() string {
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return net.JoinHostPort(a.IP, strconv.Itoa(a.Port))
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}
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