From c9274ac92a6f021240d82682002240cfceaecd5e Mon Sep 17 00:00:00 2001
From: Leonid Bugaev <leonsbox@gmail.com>
Date: Tue, 3 Aug 2021 17:42:13 +0300
Subject: [PATCH] Fix windows loopback

Windows loopback do not have addresses
---
 capture/capture.go | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/capture/capture.go b/capture/capture.go
index 2fc0be26..9190ce69 100644
--- a/capture/capture.go
+++ b/capture/capture.go
@@ -571,10 +571,6 @@ func (l *Listener) setInterfaces() (err error) {
 	}
 
 	for _, pi := range pifis {
-		if len(pi.Addresses) == 0 {
-			continue
-		}
-
 		var ni net.Interface
 		for _, i := range ifis {
 			addrs, _ := i.Addrs()
@@ -586,14 +582,16 @@ func (l *Listener) setInterfaces() (err error) {
 					}
 				}
 			}
+
+			if len(addrs) == 0 && i.Name == pi.Name {
+				ni = i
+				break
+			}
 		}
 
 		if ni.Flags&net.FlagLoopback != 0 {
 			l.loopIndex = ni.Index
 		}
-		if ni.Flags&net.FlagUp == 0 {
-			continue
-		}
 
 		if isDevice(l.host, pi) {
 			l.Interfaces = []pcap.Interface{pi}