From 498c09f69dba8d4282f6f58a0724c56fad7cd8e7 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg
Date: Mon, 9 Aug 2010 09:18:44 -0700
Subject: tcpflow - enable loopback [aparajita]

---
 Library/Formula/tcpflow.rb | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'Library/Formula')

diff --git a/Library/Formula/tcpflow.rb b/Library/Formula/tcpflow.rb
index aef9eebff..d03f12931 100644
--- a/Library/Formula/tcpflow.rb
+++ b/Library/Formula/tcpflow.rb
@@ -36,3 +36,25 @@ __END__
      /* set the current to the maximum or specified value */
      if (max_desired_fds)
        limit.rlim_cur = max_desired_fds;
+
+--- a/src/datalink.c	2002-03-29 18:19:03.000000000 -0500
++++ b/src/datalink.c	2010-08-06 17:40:55.000000000 -0400
+@@ -49,6 +49,9 @@
+  * DLT_NULL is used by the localhost interface. */
+ #define	NULL_HDRLEN 4
+ 
++/* loopback family */
++#define AF_LOOPBACK 0x2000000
++
+ void dl_null(u_char *user, const struct pcap_pkthdr *h, const u_char *p)
+ {
+   u_int caplen = h->caplen;
+@@ -72,7 +75,7 @@
+   /* make sure this is AF_INET */
+   memcpy((char *)&family, (char *)p, sizeof(family));
+   family = ntohl(family);
+-  if (family != AF_INET) {
++  if (family != AF_INET && family != AF_LOOPBACK) {
+     DEBUG(6) ("warning: received non-AF_INET null frame (type %d)", family);
+     return;
+   }
-- 
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