1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
package iprange
import (
"bytes"
"fmt"
"net"
)
// Range defines a range of IP addresses.
// Optionally just set Start to indicate a single IP.
type Range struct {
Start net.IP
End net.IP
}
// ContainsIP tests whether a supplied IP falls within the IPRange.
func (r *Range) ContainsIP(ip net.IP) bool {
if r.End == nil {
// the range is only a single IP
return r.Start.Equal(ip)
}
return bytes.Compare(ip, r.Start) >= 0 && bytes.Compare(ip, r.End) <= 0
}
func (r *Range) String() string {
if r.End == nil {
return r.Start.String()
}
return fmt.Sprintf("%v-%v", r.Start, r.End)
}
|
