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d559eed93a
Add a library function to parse and validate an IPv6 address from a string. It can parse the first two versions of an IPv6 address according to https://datatracker.ietf.org/doc/html/rfc4291#section-2.2. The third form "x❌x❌x:x.d.d.d.d" is not yet implemented. Optionally parser can accept prefix length (128 is default). Add shell script network.sh to test IPv6 parser functionality.
50 lines
1.1 KiB
Nix
50 lines
1.1 KiB
Nix
{ lib }:
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let
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inherit (import ./internal.nix { inherit lib; }) _ipv6;
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in
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{
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ipv6 = {
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/**
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Creates an `IPv6Address` object from an IPv6 address as a string. If
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the prefix length is omitted, it defaults to 64. The parser is limited
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to the first two versions of IPv6 addresses addressed in RFC 4291.
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The form "x:x:x:x:x:x:d.d.d.d" is not yet implemented. Addresses are
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NOT compressed, so they are not always the same as the canonical text
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representation of IPv6 addresses defined in RFC 5952.
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# Type
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```
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fromString :: String -> IPv6Address
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```
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# Examples
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```nix
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fromString "2001:DB8::ffff/32"
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=> {
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address = "2001:db8:0:0:0:0:0:ffff";
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prefixLength = 32;
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}
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```
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# Arguments
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- [addr] An IPv6 address with optional prefix length.
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*/
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fromString =
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addr:
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let
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splittedAddr = _ipv6.split addr;
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addrInternal = splittedAddr.address;
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prefixLength = splittedAddr.prefixLength;
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address = _ipv6.toStringFromExpandedIp addrInternal;
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in
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{
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inherit address prefixLength;
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};
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};
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}
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