From af969f602c8ce6bb417eba3ba2908e74f4da5854 Mon Sep 17 00:00:00 2001
From: Kristoffer Dalby <kristoffer@tailscale.com>
Date: Mon, 25 Nov 2024 10:03:47 +0100
Subject: [PATCH] add node hasip

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
---
 hscontrol/types/node.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/hscontrol/types/node.go b/hscontrol/types/node.go
index c8558993..885f7238 100644
--- a/hscontrol/types/node.go
+++ b/hscontrol/types/node.go
@@ -135,6 +135,16 @@ func (node *Node) IPs() []netip.Addr {
 	return ret
 }
 
+// HasIP reports if a node has a given IP address.
+func (node *Node) HasIP(i netip.Addr) bool {
+	for _, ip := range node.IPs() {
+		if ip.Compare(i) == 0 {
+			return true
+		}
+	}
+	return false
+}
+
 // IsTagged reports if a device is tagged
 // and therefore should not be treated as a
 // user owned device.