12
func newIPValue(val net.IP, p *net.IP) *ipValue {
17
func (i *ipValue) String() string { return net.IP(*i).String() }
18
func (i *ipValue) Set(s string) error {
19
ip := net.ParseIP(strings.TrimSpace(s))
21
return fmt.Errorf("failed to parse IP: %q", s)
27
func (i *ipValue) Type() string {
31
func ipConv(sval string) (interface{}, error) {
32
ip := net.ParseIP(sval)
36
return nil, fmt.Errorf("invalid string being converted to IP address: %s", sval)
39
// GetIP return the net.IP value of a flag with the given name
40
func (f *FlagSet) GetIP(name string) (net.IP, error) {
41
val, err := f.getFlagType(name, "ip", ipConv)
45
return val.(net.IP), nil
48
// IPVar defines an net.IP flag with specified name, default value, and usage string.
49
// The argument p points to an net.IP variable in which to store the value of the flag.
50
func (f *FlagSet) IPVar(p *net.IP, name string, value net.IP, usage string) {
51
f.VarP(newIPValue(value, p), name, "", usage)
54
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
55
func (f *FlagSet) IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
56
f.VarP(newIPValue(value, p), name, shorthand, usage)
59
// IPVar defines an net.IP flag with specified name, default value, and usage string.
60
// The argument p points to an net.IP variable in which to store the value of the flag.
61
func IPVar(p *net.IP, name string, value net.IP, usage string) {
62
CommandLine.VarP(newIPValue(value, p), name, "", usage)
65
// IPVarP is like IPVar, but accepts a shorthand letter that can be used after a single dash.
66
func IPVarP(p *net.IP, name, shorthand string, value net.IP, usage string) {
67
CommandLine.VarP(newIPValue(value, p), name, shorthand, usage)
70
// IP defines an net.IP flag with specified name, default value, and usage string.
71
// The return value is the address of an net.IP variable that stores the value of the flag.
72
func (f *FlagSet) IP(name string, value net.IP, usage string) *net.IP {
74
f.IPVarP(p, name, "", value, usage)
78
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
79
func (f *FlagSet) IPP(name, shorthand string, value net.IP, usage string) *net.IP {
81
f.IPVarP(p, name, shorthand, value, usage)
85
// IP defines an net.IP flag with specified name, default value, and usage string.
86
// The return value is the address of an net.IP variable that stores the value of the flag.
87
func IP(name string, value net.IP, usage string) *net.IP {
88
return CommandLine.IPP(name, "", value, usage)
91
// IPP is like IP, but accepts a shorthand letter that can be used after a single dash.
92
func IPP(name, shorthand string, value net.IP, usage string) *net.IP {
93
return CommandLine.IPP(name, shorthand, value, usage)