-
Notifications
You must be signed in to change notification settings - Fork 363
/
parse_port.go
41 lines (36 loc) · 1.29 KB
/
parse_port.go
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
33
34
35
36
37
38
39
40
41
// Copyright 2020 Antrea Authors
//
// 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 util
import (
"fmt"
"strconv"
"strings"
)
const (
delim = ":"
)
// BuildPortProto creates a single string using port and protocol separated by a delimiter.
func BuildPortProto(port, protocol string) string {
return fmt.Sprint(port) + delim + strings.ToLower(protocol)
}
// ParsePortProto separates out port and protocol from a string generated using BuildPortProto.
func ParsePortProto(portProtocol string) (int, string, error) {
portProtoSlice := strings.Split(portProtocol, delim)
if len(portProtoSlice) != 2 {
return 0, "", fmt.Errorf("invalid format for PortProto string '%s'", portProtoSlice)
}
port, err := strconv.Atoi(portProtoSlice[0])
protocol := portProtoSlice[1]
return port, protocol, err
}