reaver: use 65536 as snaplen with pcap

It should fix issue #3333.  The patch was formed with help from
t6x/reaver-wps-fork-t6x#101

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

net/reaver/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=reaver
 PKG_VERSION:=1.4
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 PKG_MAINTAINER:=Yousong Zhou <yszhou4tech@gmail.com>
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz

net/reaver/patches/0101-pcap-use-65536-as-snaplen.patch

@@ -0,0 +1,11 @@
+--- a/src/init.c.orig	2016-12-08 13:23:17.386891467 +0800
++++ b/src/init.c	2016-12-08 13:23:20.850892551 +0800
+@@ -121,7 +121,7 @@ pcap_t *capture_init(char *capture_sourc
+ 	pcap_t *handle = NULL;
+ 	char errbuf[PCAP_ERRBUF_SIZE] = { 0 };
+ 	
+-	handle = pcap_open_live(capture_source, BUFSIZ, 1, 0, errbuf);
++	handle = pcap_open_live(capture_source, 65536, 1, 0, errbuf);
+ 	if(!handle)
+ 	{
+ 		handle = pcap_open_offline(capture_source, errbuf);