From 295ebb679ca1c786da86673c7dfd1c77bbaeac2f Mon Sep 17 00:00:00 2001
From: Matias Fontanini <matias.fontanini@gmail.com>
Date: Tue, 19 Nov 2013 20:51:58 -0300
Subject: [PATCH] Added 1000ms as the default read timeout used when calling
 pcap_open_live. Added BaseSniffer::set_timeout to modify this parameter.

---
 include/sniffer.h | 8 ++++++++
 src/sniffer.cpp   | 6 +++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/sniffer.h b/include/sniffer.h
index 005c8e6..b588ac6 100644
--- a/include/sniffer.h
+++ b/include/sniffer.h
@@ -192,6 +192,14 @@ namespace Tins {
          */
         int get_fd();
 
+        /**
+         * \brief Sets the read timeout for this sniffer.
+         *
+         * This calls pcap_set_timeout using the provided parameter.
+         * \param ms The amount of milliseconds.
+         */
+        void set_timeout(int ms);
+
         /**
          * \brief Retrieves this sniffer's link type.
          *
diff --git a/src/sniffer.cpp b/src/sniffer.cpp
index cedef83..d813407 100644
--- a/src/sniffer.cpp
+++ b/src/sniffer.cpp
@@ -178,6 +178,10 @@ bool BaseSniffer::set_filter(const std::string &filter) {
     return result;
 }
 
+void BaseSniffer::set_timeout(int ms) {
+    pcap_set_timeout(handle, ms);
+}
+
 // ****************************** Sniffer ******************************
 
 Sniffer::Sniffer(const string &device, unsigned max_packet_size, 
@@ -201,7 +205,7 @@ void Sniffer::init_sniffer(const std::string &device, unsigned max_packet_size,
         ip = 0;
         if_mask = 0;
     }
-    pcap_t *phandle = pcap_open_live(device.c_str(), max_packet_size, promisc, 0, error);
+    pcap_t *phandle = pcap_open_live(device.c_str(), max_packet_size, promisc, 1000, error);
     if(!phandle)
         throw runtime_error(error);