From cd05282369e1b9c62368e817f86f6ce191201933 Mon Sep 17 00:00:00 2001
From: "Lars K.W. Gohlke" <lkwg82@gmx.de>
Date: Tue, 17 May 2016 20:07:18 +0000
Subject: [PATCH] lib/connection: Remove unused functions

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3110
---
 lib/connections/tcp_listen.go | 34 ----------------------------------
 1 file changed, 34 deletions(-)

diff --git a/lib/connections/tcp_listen.go b/lib/connections/tcp_listen.go
index 0b56cae36..666c40ca4 100644
--- a/lib/connections/tcp_listen.go
+++ b/lib/connections/tcp_listen.go
@@ -179,40 +179,6 @@ func (tcpListenerFactory) Enabled(cfg config.Configuration) bool {
 	return true
 }
 
-func isPublicIPv4(ip net.IP) bool {
-	ip = ip.To4()
-	if ip == nil {
-		// Not an IPv4 address (IPv6)
-		return false
-	}
-
-	// IsGlobalUnicast below only checks that it's not link local or
-	// multicast, and we want to exclude private (NAT:ed) addresses as well.
-	rfc1918 := []net.IPNet{
-		{IP: net.IP{10, 0, 0, 0}, Mask: net.IPMask{255, 0, 0, 0}},
-		{IP: net.IP{172, 16, 0, 0}, Mask: net.IPMask{255, 240, 0, 0}},
-		{IP: net.IP{192, 168, 0, 0}, Mask: net.IPMask{255, 255, 0, 0}},
-	}
-	for _, n := range rfc1918 {
-		if n.Contains(ip) {
-			return false
-		}
-	}
-
-	return ip.IsGlobalUnicast()
-}
-
-func isPublicIPv6(ip net.IP) bool {
-	if ip.To4() != nil {
-		// Not an IPv6 address (IPv4)
-		// (To16() returns a v6 mapped v4 address so can't be used to check
-		// that it's an actual v6 address)
-		return false
-	}
-
-	return ip.IsGlobalUnicast()
-}
-
 func fixupPort(uri *url.URL) *url.URL {
 	copyURI := *uri