mirror/Lidarr
1
0
Fork 0
mirror of https://github.com/lidarr/Lidarr synced 2024-12-22 07:42:28 +00:00
Code Issues Releases Wiki Activity

Remove unnecessary heap allocations in local IP check

Browse source 
(cherry picked from commit ed536a85ad5f2062bf6f01f80efddb19fa935f63)
This commit is contained in:
Gylesie 2024-12-02 01:22:04 +01:00 committed by Bogdan
parent beabad5e3a
commit eef55f65c6
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/NzbDrone.Common/Extensions/IpAddressExtensions.cs
View file

@ -39,18 +39,18 @@ public static bool IsLocalAddress(this IPAddress ipAddress)
private static bool IsLocalIPv4(byte[] ipv4Bytes)
{
// Link local (no IP assigned by DHCP): 169.254.0.0 to 169.254.255.255 (169.254.0.0/16)
bool IsLinkLocal() => ipv4Bytes[0] == 169 && ipv4Bytes[1] == 254;
var isLinkLocal = ipv4Bytes[0] == 169 && ipv4Bytes[1] == 254;
// Class A private range: 10.0.0.0 – 10.255.255.255 (10.0.0.0/8)
bool IsClassA() => ipv4Bytes[0] == 10;
var isClassA = ipv4Bytes[0] == 10;
// Class B private range: 172.16.0.0 – 172.31.255.255 (172.16.0.0/12)
bool IsClassB() => ipv4Bytes[0] == 172 && ipv4Bytes[1] >= 16 && ipv4Bytes[1] <= 31;
var isClassB = ipv4Bytes[0] == 172 && ipv4Bytes[1] >= 16 && ipv4Bytes[1] <= 31;
// Class C private range: 192.168.0.0 – 192.168.255.255 (192.168.0.0/16)
bool IsClassC() => ipv4Bytes[0] == 192 && ipv4Bytes[1] == 168;
var isClassC = ipv4Bytes[0] == 192 && ipv4Bytes[1] == 168;
return IsLinkLocal() || IsClassA() || IsClassC() || IsClassB();
return isLinkLocal || isClassA || isClassC || isClassB;
}
}
}