| OZ++ Sample: RoutingTableMonitor |
/******************************************************************************
*
* Copyright (c) 2014 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
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*
* RoutingTableMonitor.cpp
*
*****************************************************************************/
#include <oz++/CommonObject.h>
#include <oz++/Exception.h>
#include <oz++/Locale.h>
#include <oz++/netlink/SocketNetlink.h>
#include <oz++/netlink/SockAddrNetlink.h>
#include <oz++/netlink/RoutingTableAttribute.h>
#include <oz++/netlink/NetlinkMsgHeader.h>
#include <oz++/netlink/RoutingTableMsg.h>
#include <oz++/netlink/NetlinkReply.h>
//Simple program to monitor IPv4 route changes through Netlink++.
namespace OZ {
class RoutingTableMonitor :public CommonObject {
private:
SockAddrNetlink addr;
SocketNetlink socketNetlink;
public:
RoutingTableMonitor(unsigned char family)
{
}
int bind()
{
addr.setFamily(AF_NETLINK);
addr.setGroups(RTMGRP_IPV4_ROUTE);
return socketNetlink.bind(addr);
}
void recv()
{
while (true) {
char buffer[4096];
bzero(buffer, sizeof(buffer));
int n = socketNetlink.recv(buffer, sizeof(buffer), 0);
if (n < 0){
break;;
}
NetlinkMsgHeader replyHeader(buffer, n);
if (replyHeader.isDone() || replyHeader.isError() ) {
break;
}
try {
do {
replyHeader.display();
RoutingTableMsg routingTableMsg(replyHeader.data());
RoutingTableAttribute attr(replyHeader, routingTableMsg);
do {
attr.parse();
} while (attr.next() );
routingTableMsg.display();
printf("\n");
} while (replyHeader.next());
} catch (Exception& ex) {
ex.display();
}
fflush(stdout);
} //while
}
};
}
//
int main(int argc, char* argv[])
{
Locale locale;
try {
//IPv4
RoutingTableMonitor request(AF_INET);
request.bind();
request.recv();
} catch (Exception& ex) {
ex.display();
}
return 0;
}