-
Notifications
You must be signed in to change notification settings - Fork 42
/
netparser_utils.go
99 lines (87 loc) · 1.9 KB
/
netparser_utils.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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
package utils
import (
"fmt"
"github.com/yaklang/yaklang/common/log"
"math/big"
"net"
"strconv"
)
func InetNtoA(ip int64) net.IP {
return net.ParseIP(fmt.Sprintf("%d.%d.%d.%d",
byte(ip>>24), byte(ip>>16), byte(ip>>8), byte(ip)))
}
func InetAtoN(ip net.IP) int64 {
if ip != nil {
ret := big.NewInt(0)
ret.SetBytes(ip.To4())
return ret.Int64()
} else {
return -1
}
}
func IPv4ToCClassNetwork(s string) (string, error) {
ip := net.ParseIP(FixForParseIP(s))
if ip != nil && ip.To4() != nil {
_, network, err := net.ParseCIDR(fmt.Sprintf("%v/24", s))
if err != nil {
return "", err
}
return network.String(), nil
}
return "", Errorf("invalid ipv4: %v", s)
}
func NetworkByteOrderUint8ToBytes(i any) []byte {
raw, err := strconv.ParseUint(fmt.Sprint(i), 10, 8)
if err != nil {
log.Warnf("cannot convert %v to uint8", i)
return make([]byte, 1)
}
return []byte{byte(raw)}
}
func NetworkByteOrderUint16ToBytes(i any) []byte {
raw, err := strconv.ParseUint(fmt.Sprint(i), 10, 16)
if err != nil {
log.Warnf("cannot convert %v to uint16", i)
return make([]byte, 2)
}
return []byte{
byte(raw >> 8),
byte(raw),
}
}
func NetworkByteOrderBytesToUint16(r []byte) uint16 {
if len(r) < 2 {
return 0
}
return uint16(r[0])<<8 | uint16(r[1])
}
func NetworkByteOrderUint32ToBytes(i any) []byte {
raw, err := strconv.ParseUint(fmt.Sprint(i), 10, 32)
if err != nil {
log.Warnf("cannot convert %v to uint32", i)
return make([]byte, 4)
}
return []byte{
byte(raw >> 24),
byte(raw >> 16),
byte(raw >> 8),
byte(raw),
}
}
func NetworkByteOrderUint64ToBytes(i any) []byte {
raw, err := strconv.ParseUint(fmt.Sprint(i), 10, 64)
if err != nil {
log.Warnf("cannot convert %v to uint64", i)
return make([]byte, 8)
}
return []byte{
byte(raw >> 56),
byte(raw >> 48),
byte(raw >> 40),
byte(raw >> 32),
byte(raw >> 24),
byte(raw >> 16),
byte(raw >> 8),
byte(raw),
}
}