From 412c3255c27750edf2f59ee7042ed1106bb59812 Mon Sep 17 00:00:00 2001
From: Artem Prilutskiy <cyanide.burnout@gmail.com>
Date: Sun, 7 Aug 2016 18:05:48 +0300
Subject: [PATCH] Trying to solve issue with RA using IPTOS_LOWDELAY

---
 CronosAgent.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/CronosAgent.c b/CronosAgent.c
index d912aa6..3b2ae03 100644
--- a/CronosAgent.c
+++ b/CronosAgent.c
@@ -10,6 +10,7 @@
 
 #include <netdb.h>
 #include <arpa/inet.h>
+#include <netinet/ip.h>
 
 #include <unistd.h>
 #include <syslog.h>
@@ -307,10 +308,10 @@ int main(int argc, const char* argv[])
   int trapHandle;
   int mediaHandle;
   int remoteHandle;
+  int socketOptionValue;
   struct sockaddr_in proxySocketAddress;
 
   socklen_t proxySocketLength = sizeof(proxySocketAddress);
-  int socketOptionValue = true;
 
   proxySocketAddress.sin_family = AF_INET;
   proxySocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
@@ -324,6 +325,7 @@ int main(int argc, const char* argv[])
     return EXIT_FAILURE;
   }
 
+  socketOptionValue = true;
   proxySocketAddress.sin_port = 0;
   remoteHandle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
   if((remoteHandle < 0) ||
@@ -334,11 +336,13 @@ int main(int argc, const char* argv[])
     return EXIT_FAILURE;
   }
 
+  socketOptionValue = IPTOS_LOWDELAY;
   proxySocketAddress.sin_port = 0;
   mediaHandle = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
   if((mediaHandle < 0) ||
      (bind(mediaHandle, (struct sockaddr*)&proxySocketAddress, proxySocketLength) < 0) ||
-     (getsockname(mediaHandle, (struct sockaddr*)&proxySocketAddress, &proxySocketLength) < 0))
+     (getsockname(mediaHandle, (struct sockaddr*)&proxySocketAddress, &proxySocketLength) < 0) ||
+     (setsockopt(mediaHandle, IPPROTO_IP, IP_TOS, &socketOptionValue, sizeof(socketOptionValue)) < 0))
   {
     print("Error opening port for External Server\n");
     return EXIT_FAILURE;