blob: ade87f210b615254340259452d0c920a36493cf9 (
plain) (
blame)
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
|
// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All Rights Reserved.
import Foundation
import Network
struct LegacyIPAddressRange: Codable {
let address: IPAddress
let networkPrefixLength: UInt8
public init(from decoder: Decoder) throws {
let container = try decoder.singleValueContainer()
var data = try container.decode(Data.self)
networkPrefixLength = data.removeLast()
let ipAddressFromData: IPAddress? = {
switch data.count {
case 4: return IPv4Address(data)
case 16: return IPv6Address(data)
default: return nil
}
}()
guard let ipAddress = ipAddressFromData else { throw DecodingError.invalidData }
address = ipAddress
}
public func encode(to encoder: Encoder) throws {
var container = encoder.singleValueContainer()
let addressDataLength: Int
if address is IPv4Address {
addressDataLength = 4
} else if address is IPv6Address {
addressDataLength = 16
} else {
fatalError()
}
var data = Data(capacity: addressDataLength + 1)
data.append(address.rawValue)
data.append(networkPrefixLength)
try container.encode(data)
}
enum DecodingError: Error {
case invalidData
}
}
extension LegacyIPAddressRange {
var migrated: IPAddressRange {
return IPAddressRange(address: address, networkPrefixLength: networkPrefixLength)
}
}
extension Array where Element == LegacyIPAddressRange {
var migrated: [IPAddressRange] {
return map { $0.migrated }
}
}
|
