Mercurial > repos > rliterman > csp2

comparison CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/kj/cidr.h @ 69:33d812a61356

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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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67:0e9998148a16 69:33d812a61356
1
2 // Copyright (c) 2013-2014 Sandstorm Development Group, Inc. and contributors
3 // Licensed under the MIT License:
4 //
5 // Permission is hereby granted, free of charge, to any person obtaining a copy
6 // of this software and associated documentation files (the "Software"), to deal
7 // in the Software without restriction, including without limitation the rights
8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 // copies of the Software, and to permit persons to whom the Software is
10 // furnished to do so, subject to the following conditions:
11 //
12 // The above copyright notice and this permission notice shall be included in
13 // all copies or substantial portions of the Software.
14 //
15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 // THE SOFTWARE.
22
23 #pragma once
24
25 #include "common.h"
26 #include <cstdint>
27
28 KJ_BEGIN_HEADER
29
30 struct sockaddr;
31
32 namespace kj {
33
34 class CidrRange {
35 public:
36 CidrRange(StringPtr pattern);
37
38 static CidrRange inet4(ArrayPtr<const byte> bits, uint bitCount);
39 static CidrRange inet6(ArrayPtr<const uint16_t> prefix, ArrayPtr<const uint16_t> suffix,
40 uint bitCount);
41 // Zeros are inserted between `prefix` and `suffix` to extend the address to 128 bits.
42
43 uint getSpecificity() const { return bitCount; }
44
45 bool matches(const struct sockaddr* addr) const;
46 bool matchesFamily(int family) const;
47
48 String toString() const;
49
50 private:
51 int family;
52 byte bits[16];
53 uint bitCount; // how many bits in `bits` need to match
54
55 CidrRange(int family, ArrayPtr<const byte> bits, uint bitCount);
56
57 void zeroIrrelevantBits();
58 };
59
60 } // namespace kj
61
62 KJ_END_HEADER