97 lines
3 KiB
Go
97 lines
3 KiB
Go
|
package pflag
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"net"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
var _ = strings.TrimSpace
|
||
|
|
|
||
|
|
// -- net.IP value
|
||
|
|
type ipValue net.IP
|
||
|
|
|
||
|
|
func newIPValue(val net.IP, p *net.IP) *ipValue {
|
||
|
|
*p = val
|
||
|
|
return (*ipValue)(p)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *ipValue) String() string { return net.IP(*i).String() }
|
||
|
|
func (i *ipValue) Set(s string) error {
|
||
|
|
ip := net.ParseIP(strings.TrimSpace(s))
|
||
|
|
if ip == nil {
|
||
|
|
return fmt.Errorf("failed to parse IP: %q", s)
|
||
|
|
}
|
||
|
|
*i = ipValue(ip)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (i *ipValue) Type() string {
|
||
|
|
return "ip"
|
||
|
|
}
|
||
|
|
|
||
|
|
func ipConv(sval string) (interface{}, error) {
|
||
|
|
ip := net.ParseIP(sval)
|
||
|
|
if ip != nil {
|
||
|
|
return ip, nil
|
||
|
|
}
|
||
|
|
return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
|
||
|
|
}
|
||
|
|
|
||
|
|
// GetIP return the net.IP value of a flag with the given name
|
||
|
|
func (f *FlagSet) GetIP(name string) (net.IP, error) {
|
||
|
|
val, err := f.getFlagType(name, "ip", ipConv)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return val.(net.IP), nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPVar defines an net.IP flag with specified name, default value, and usage string.
|
||
|
|
// The argument p points to an net.IP variable in which to store the value of the flag.
|
||
|
|
func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
|
||
|
|
f.VarP(newIPValue(value, p), name, "", usage)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
|
||
|
|
func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
|
||
|
|
f.VarP(newIPValue(value, p), name, shorthand, usage)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPVar defines an net.IP flag with specified name, default value, and usage string.
|
||
|
|
// The argument p points to an net.IP variable in which to store the value of the flag.
|
||
|
|
func IPVar(p *net.IP, name string, value net.IP, usage string) {
|
||
|
|
CommandLine.VarP(newIPValue(value, p), name, "", usage)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
|
||
|
|
func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
|
||
|
|
CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IP defines an net.IP flag with specified name, default value, and usage string.
|
||
|
|
// The return value is the address of an net.IP variable that stores the value of the flag.
|
||
|
|
func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
|
||
|
|
p := new(net.IP)
|
||
|
|
f.IPVarP(p, name, "", value, usage)
|
||
|
|
return p
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
|
||
|
|
func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
|
||
|
|
p := new(net.IP)
|
||
|
|
f.IPVarP(p, name, shorthand, value, usage)
|
||
|
|
return p
|
||
|
|
}
|
||
|
|
|
||
|
|
// IP defines an net.IP flag with specified name, default value, and usage string.
|
||
|
|
// The return value is the address of an net.IP variable that stores the value of the flag.
|
||
|
|
func IP(name string, value net.IP, usage string) *net.IP {
|
||
|
|
return CommandLine.IPP(name, "", value, usage)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
|
||
|
|
func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
|
||
|
|
return CommandLine.IPP(name, shorthand, value, usage)
|
||
|
|
}
|