Initial commit

lib/utils/ip.ts

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+/**
+ * Convert IP address (with optional CIDR) to numeric value for sorting
+ * e.g., "192.168.1.0/24" -> 3232235776, "10.0.0.1" -> 167772161
+ */
+export function ipToNumber(ip: string | undefined | null): number {
+	if (!ip || ip === '-') return Infinity; // Push empty IPs to the end
+	// Strip CIDR notation if present
+	const ipOnly = ip.split('/')[0];
+	const parts = ipOnly.split('.');
+	if (parts.length !== 4) return Infinity;
+	return parts.reduce((acc, octet) => {
+		const num = parseInt(octet, 10);
+		return isNaN(num) ? Infinity : (acc << 8) + num;
+	}, 0) >>> 0; // Convert to unsigned 32-bit
+}