C# - WinRT - Convert IPv4 address from uint to string?

Question

I have a IPv4 address provided as a uint and I would like to convert it to string (for the purpose of logging).

I would normally achieve this in C# using the System.Net.IPAddress constructor...but it seems that System.Net.IPAddress is not available in C# for WinRT/Windows Store. Does anyone have an equivalent way to do this conversion?

Thank you.

Jurion · Accepted Answer · 2014-02-27 04:46:15Z

5

A little "dirty", but seems to work

        uint ip = 0xFFDF5F4F;
        var bytes = BitConverter.GetBytes(ip);
        string res = string.Join(".", bytes.Reverse());

Output is 255.223.95.79 for this case

edited Feb 27, 2014 at 4:46

answered Feb 27, 2014 at 4:34

Jurion

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6 Comments

DaveUK Over a year ago

Works for me - thanks! (except my IP was already in host order so I just removed the reverse())

DaveUK Over a year ago

Should the same work for IPv6 addresses stored as uint? (if . is changed for :)

Jurion Over a year ago

By definition, you can not store Ipv6 address as uint :) unit has only 4 bytes. And I'm not sure it will work even with long or Int64. Ipv6 are not coded the same way

DaveUK Over a year ago

Lol, sorry my bad...yes, I have the IPv6 address stored in a byte[16]. Usually I would pass that byte array into System.Net.IPAddress constructor. Any tips on how to get that byte array formatted as a IPv6 address string without System.Net.IPAddress ? :)

Jurion Over a year ago

You can try the same method, but I really don't know what the result will be :) Take just last line. But I think ipv6 is not formatted byte by byte

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