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std::net: add Ipv4Addr::is_benchmarking()

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This commit is contained in:
Corentin Henry 2018-11-19 09:37:21 -08:00
parent 8f679977e0
commit de3cf0d5eb
1 changed files with 25 additions and 0 deletions
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25
src/libstd/net/ip.rs
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@ -532,6 +532,31 @@ impl Ipv4Addr {
!self.is_broadcast() && !self.is_documentation() && !self.is_unspecified()
}
/// Returns [`true`] if this address part of the `198.18.0.0/15` range, which is reserved for
/// network devices benchmarking. This range is defined in [IETF RFC 2544] as `192.18.0.0`
/// through `198.19.255.255` but [errata 423] corrects it to `198.18.0.0/15`.
///
/// [IETF RFC 1112]: https://tools.ietf.org/html/rfc1112
/// [errate 423]: https://www.rfc-editor.org/errata/eid423
/// [`true`]: ../../std/primitive.bool.html
///
/// # Examples
///
/// ```
/// #![feature(ip)]
/// use std::net::Ipv4Addr;
///
/// fn main() {
/// assert_eq!(Ipv4Addr::new(198, 17, 255, 255).is_benchmarking(), false);
/// assert_eq!(Ipv4Addr::new(198, 18, 0, 0).is_benchmarking(), true);
/// assert_eq!(Ipv4Addr::new(198, 19, 255, 255).is_benchmarking(), true);
/// assert_eq!(Ipv4Addr::new(198, 20, 0, 0).is_benchmarking(), false);
/// }
/// ```
pub fn is_benchmarking(&self) -> bool {
self.octets()[0] == 198 && (self.octets()[1] & 0xfe) == 18
}
/// Returns [`true`] if this address is reserved by IANA for future use. [IETF RFC 1112]
/// defines the block of reserved addresses as `240.0.0.0/4`. This range normally includes the
/// broadcast address `255.255.255.255`, but this implementation explicitely excludes it, since