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net.go
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net.go
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/*
Copyright 2014 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package flagtypes
import (
"fmt"
"net"
"strings"
)
// lifted from kubernetes/pkg/util/net.go. same flags vs pflags problem as we had with StringList
// IP adapts net.IP for use as a flag.
type IP net.IP
func (ip IP) String() string {
return net.IP(ip).String()
}
func (ip *IP) Set(value string) error {
*ip = IP(net.ParseIP(strings.TrimSpace(value)))
if *ip == nil {
return fmt.Errorf("invalid IP address: '%s'", value)
}
return nil
}
// Type returns a string representation of what kind of argument this is
func (ip *IP) Type() string {
return "cmd.flagtypes.IP"
}
// IPNet adapts net.IPNet for use as a flag.
type IPNet net.IPNet
func DefaultIPNet(value string) IPNet {
ret := IPNet{}
if err := ret.Set(value); err != nil {
panic(err)
}
return ret
}
func (ipnet IPNet) String() string {
n := net.IPNet(ipnet)
return n.String()
}
func (ipnet *IPNet) Set(value string) error {
_, n, err := net.ParseCIDR(strings.TrimSpace(value))
if err != nil {
return err
}
*ipnet = IPNet(*n)
return nil
}
// Type returns a string representation of what kind of argument this is
func (ipnet *IPNet) Type() string {
return "cmd.flagtypes.IPNet"
}