netaddr2 0.10.0

A Rust network address parsing and arithmetic library
Documentation 
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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127

use super::Mask;
use std::net::IpAddr;

impl Mask for IpAddr {
	type Output = Result<Self, &'static str>;

	fn mask(&self, other: &Self) -> Self::Output {
		match (self, other) {
			(Self::V4(a), Self::V4(b)) => Ok(Self::V4(a.mask(b))),
			(Self::V6(a), Self::V6(b)) => Ok(Self::V6(a.mask(b))),
			(_, _) => Err("mismatched address types"),
		}
	}
}

#[cfg(test)]
mod tests {
	use super::*;

	mod v4 {
		use super::*;

		#[test]
		fn bidirectionally_returns_ok() {
			let a: IpAddr = "192.0.2.1".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert!(a.mask(&b).is_ok());
			assert!(b.mask(&a).is_ok());
		}

		#[test]
		fn returns_correct_answer() {
			let a: IpAddr = "192.0.2.1".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert_eq!(a.mask(&b), Ok("192.0.2.0".parse::<IpAddr>().unwrap()));
		}

		#[test]
		fn is_reflexive() {
			let a: IpAddr = "192.0.2.1".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert_eq!(a.mask(&b), b.mask(&a));
		}

		#[test]
		fn v6_bidirectionally_returns_err() {
			let a: IpAddr = "192.0.2.0".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert!(a.mask(&b).is_err());
			assert!(b.mask(&a).is_err());
		}

		#[test]
		fn v6_returns_correct_error() {
			let a: IpAddr = "192.0.2.0".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert_eq!(a.mask(&b), Err("mismatched address types"));
		}

		#[test]
		fn v6_is_reflexive() {
			let a: IpAddr = "192.0.2.0".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert_eq!(a.mask(&b), b.mask(&a));
		}
	}

	mod v6 {
		use super::*;

		#[test]
		fn bidirectionally_returns_ok() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert!(a.mask(&b).is_ok());
			assert!(b.mask(&a).is_ok());
		}

		#[test]
		fn returns_correct_answer() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert_eq!(a.mask(&b), Ok("2001:db8::".parse::<IpAddr>().unwrap()));
		}

		#[test]
		fn is_reflexive() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "ffff:ffff::".parse().unwrap();

			assert_eq!(a.mask(&b), b.mask(&a));
		}

		#[test]
		fn v4_bidirectionally_returns_ok() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert!(a.mask(&b).is_err());
			assert!(b.mask(&a).is_err());
		}

		#[test]
		fn v4_returns_correct_answer() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert_eq!(a.mask(&b), Err("mismatched address types"));
		}

		#[test]
		fn v4_is_reflexive() {
			let a: IpAddr = "2001:db8::dead:beef".parse().unwrap();
			let b: IpAddr = "255.255.255.0".parse().unwrap();

			assert_eq!(a.mask(&b), b.mask(&a));
		}
	}
}