From cf65f11dcf8e0a26a85af6856b4bdf0015ab0770 Mon Sep 17 00:00:00 2001
From: Emil Mikulic <emikulic@gmail.com>
Date: Thu, 1 Jan 2009 22:30:37 +1100
Subject: [PATCH] Ignore errors from pcap_dispatch.

This makes interface going down survivable on Linux.

Prompted by: Chris Franklin
---
 cap.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cap.c b/cap.c
index b39b1c4..986bed5 100644
--- a/cap.c
+++ b/cap.c
@@ -244,8 +244,10 @@ cap_poll(fd_set *read_set
             linkhdr->handler, /* callback func from decode.c */
             NULL);            /* user */
 
-      if (ret < 0)
-         errx(1, "pcap_dispatch(): %s", pcap_geterr(pcap));
+      if (ret < 0) {
+         warnx("pcap_dispatch(): %s", pcap_geterr(pcap));
+         return;
+      }
 
       /* Despite count = -1, Linux will only dispatch one packet at a time. */
       total += ret;
-- 
2.17.1