tcpflow - enable loopback [aparajita]

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;
+   }