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isReserved IPv6 support
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ztimson
2026-10-08 10:01:03 -04:00
parent 01e799274a
commit 59b03d5b51
2 changed files with 6 additions and 6 deletions
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package.json
+1 -1
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@@ -1,6 +1,6 @@
{
"name": "@ztimson/utils",
"version": "0.30.9",
"version": "0.30.10",
"description": "Utility library",
"author": "Zak Timson",
"license": "MIT",
src/ip.ts
+4 -4
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@@ -48,11 +48,11 @@ export function reservedIp(ip: string): boolean {
* @returns {null | 'Invalid' | 'Host' | 'Loopback' | 'Private (Class A)' | 'Private (Class B)' | 'Link-Local' | 'IETF Protocol Assignments' | 'Documentation (TEST-NET-1)' | 'Benchmarking' | 'Documentation (TEST-NET-2)' | 'Documentation (TEST-NET-3)' | 'Multicast' | 'Reserved (Class E)'} null if public, class name if reserved
*/
export function isReserved(ip: string): null | 'Invalid' | 'Host' | 'Loopback' | 'Private (Class A)' | 'Private (Class B)' | 'Link-Local' | 'IETF Protocol Assignments' | 'Documentation (TEST-NET-1)' | 'Benchmarking' | 'Documentation (TEST-NET-2)' | 'Documentation (TEST-NET-3)' | 'Multicast' | 'Reserved (Class E)' {
const ipToNumber = (ip: string) => {
return ip.split('.').reduce((acc: number, octet: string) => (acc << 8) + parseInt(octet, 10), 0) >>> 0;
};
const ipToNumber = (ip: string) => ip.split('.').reduce((acc: number, octet: string) => (acc << 8) + parseInt(octet, 10), 0) >>> 0;
const ipNum = ipToNumber(ip);
const ipv4 = ip.includes(':') ? ipV6ToV4(ip) : ip;
if(ipv4 === null || !ipv4.includes('.')) return 'Invalid';
const ipNum = ipToNumber(ipv4);
if(ipNum === null) return 'Invalid';
const reserved = [