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Merged
merged 1 commit into from
Mar 18, 2016
Merged

Add is_documentation for IPv6 #32207

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48 changes: 29 additions & 19 deletions src/libstd/net/ip.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -363,6 +363,12 @@ impl Ipv6Addr {
(self.segments()[0] & 0xffc0) == 0xfec0
}

/// Returns true if this is an address reserved for documentation
/// This is defined to be 2001:db8::/32 in RFC RFC 3849
pub fn is_documentation(&self) -> bool {
(self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8)
}

/// Returns true if the address is a globally routable unicast address.
///
/// The following return false:
Expand All @@ -372,11 +378,12 @@ impl Ipv6Addr {
/// - the (deprecated) site-local addresses
/// - unique local addresses
/// - the unspecified address
/// - the address range reserved for documentation
pub fn is_unicast_global(&self) -> bool {
!self.is_multicast()
&& !self.is_loopback() && !self.is_unicast_link_local()
&& !self.is_unicast_site_local() && !self.is_unique_local()
&& !self.is_unspecified()
&& !self.is_unspecified() && !self.is_documentation()
}

/// Returns the address's multicast scope if the address is multicast.
Expand Down Expand Up @@ -752,7 +759,7 @@ mod tests {
fn ipv6_properties() {
fn check(str_addr: &str, unspec: bool, loopback: bool,
unique_local: bool, global: bool,
u_link_local: bool, u_site_local: bool, u_global: bool,
u_link_local: bool, u_site_local: bool, u_global: bool, u_doc: bool,
m_scope: Option<Ipv6MulticastScope>) {
let ip: Ipv6Addr = str_addr.parse().unwrap();
assert_eq!(str_addr, ip.to_string());
Expand All @@ -764,43 +771,46 @@ mod tests {
assert_eq!(ip.is_unicast_link_local(), u_link_local);
assert_eq!(ip.is_unicast_site_local(), u_site_local);
assert_eq!(ip.is_unicast_global(), u_global);
assert_eq!(ip.is_documentation(), u_doc);
assert_eq!(ip.multicast_scope(), m_scope);
assert_eq!(ip.is_multicast(), m_scope.is_some());
}

// unspec loopbk uniqlo global unill unisl uniglo mscope
// unspec loopbk uniqlo global unill unisl uniglo doc mscope
check("::",
true, false, false, false, false, false, false, None);
true, false, false, false, false, false, false, false, None);
check("::1",
false, true, false, false, false, false, false, None);
false, true, false, false, false, false, false, false, None);
check("::0.0.0.2",
false, false, false, true, false, false, true, None);
false, false, false, true, false, false, true, false, None);
check("1::",
false, false, false, true, false, false, true, None);
false, false, false, true, false, false, true, false, None);
check("fc00::",
false, false, true, false, false, false, false, None);
false, false, true, false, false, false, false, false, None);
check("fdff:ffff::",
false, false, true, false, false, false, false, None);
false, false, true, false, false, false, false, false, None);
check("fe80:ffff::",
false, false, false, false, true, false, false, None);
false, false, false, false, true, false, false, false, None);
check("febf:ffff::",
false, false, false, false, true, false, false, None);
false, false, false, false, true, false, false, false, None);
check("fec0::",
false, false, false, false, false, true, false, None);
false, false, false, false, false, true, false, false, None);
check("ff01::",
false, false, false, false, false, false, false, Some(InterfaceLocal));
false, false, false, false, false, false, false, false, Some(InterfaceLocal));
check("ff02::",
false, false, false, false, false, false, false, Some(LinkLocal));
false, false, false, false, false, false, false, false, Some(LinkLocal));
check("ff03::",
false, false, false, false, false, false, false, Some(RealmLocal));
false, false, false, false, false, false, false, false, Some(RealmLocal));
check("ff04::",
false, false, false, false, false, false, false, Some(AdminLocal));
false, false, false, false, false, false, false, false, Some(AdminLocal));
check("ff05::",
false, false, false, false, false, false, false, Some(SiteLocal));
false, false, false, false, false, false, false, false, Some(SiteLocal));
check("ff08::",
false, false, false, false, false, false, false, Some(OrganizationLocal));
false, false, false, false, false, false, false, false, Some(OrganizationLocal));
check("ff0e::",
false, false, false, true, false, false, false, Some(Global));
false, false, false, true, false, false, false, false, Some(Global));
check("2001:db8:85a3::8a2e:370:7334",
false, false, false, false, false, false, false, true, None);
}

#[test]
Expand Down