Kieran/ipnetwork
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fix for 0.0.0.0/0 network (#199)

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This commit is contained in:
SildCave
2024-09-07 21:22:12 +02:00
committed by GitHub
parent cbf8d6b29a
commit ad46759a55
2 changed files with 14 additions and 1 deletions
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7
src/ipv4.rs
View File

@ -166,7 +166,9 @@ impl Ipv4Network {
/// ``` /// ```
pub fn mask(&self) -> Ipv4Addr { pub fn mask(&self) -> Ipv4Addr {
debug_assert!(self.prefix <= 32); debug_assert!(self.prefix <= 32);
if self.prefix == 0 {
return Ipv4Addr::new(0, 0, 0, 0);
}
let mask = u32::MAX << (IPV4_BITS - self.prefix); let mask = u32::MAX << (IPV4_BITS - self.prefix);
Ipv4Addr::from(mask) Ipv4Addr::from(mask)
} }
@ -244,6 +246,9 @@ impl Ipv4Network {
/// ``` /// ```
pub fn size(self) -> u32 { pub fn size(self) -> u32 {
debug_assert!(self.prefix <= 32); debug_assert!(self.prefix <= 32);
if self.prefix == 0 {
return u32::MAX;
}
1 << (IPV4_BITS - self.prefix) 1 << (IPV4_BITS - self.prefix)
} }

8
tests/test_json.rs
View File

@ -82,4 +82,12 @@ mod tests {
panic!("{}", s); panic!("{}", s);
} }
} }
#[test]
fn test_ipnetwork_size_with_prefix_0() {
let network: Ipv4Network = "0.0.0.0/0".parse().unwrap();
let size = network.size();
assert_eq!(size, u32::MAX);
}
} }