| OZ++ Sample: IPAddressMonitor |
/******************************************************************************
*
* Copyright (c) 2015 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
* are met:
* 1. Redistributions of source code must retain the above copyright
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*
* IPAddressMonitor.cpp
*
*****************************************************************************/
#include <oz++/CommonObject.h>
#include <oz++/LocalDateTime.h>
#include <oz++/Exception.h>
#include <oz++/netlink/SocketNetlink.h>
#include <oz++/netlink/SockAddrNetlink.h>
#include <oz++/netlink/NetlinkReply.h>
#include <oz++/netlink/NetlinkMsgHeader.h>
#include <oz++/netlink/InterfaceAddrAttribute.h>
#include <oz++/netlink/InterfaceAddrMsg.h>
namespace OZ {
class IPAddressMonitor :public CommonObject {
private:
int rtmGroups;
SocketNetlink socketNetlink;
NetlinkReply<ifaddrmsg> reply;
public:
IPAddressMonitor(int group = RTMGRP_IPV4_IFADDR|RTMGRP_IPV6_IFADDR)
:rtmGroups(group)
{
}
int bind()
{
SockAddrNetlink addrNetlink;
addrNetlink.setFamily(AF_NETLINK);
addrNetlink.setGroups(rtmGroups);
return socketNetlink.bind(addrNetlink);
}
void recv()
{
while (true) {
bzero(&reply, sizeof(reply));
int n = socketNetlink.recv((char*)&reply, sizeof(reply), 0);
if ( n < 0 ){
perror("recv");
break;
}
try {
NetlinkMsgHeader netlinkMsgHeader(&reply.head);
if (netlinkMsgHeader.isDone() || netlinkMsgHeader.isError()) {
break;
}
do {
LocalDateTime dateTime;
CharString now = dateTime.nowToSeconds();
printf("%s\n", (const char*)now);
netlinkMsgHeader.display();
InterfaceAddrMsg addrMsg(&reply.body);
InterfaceAddrAttribute attribute(netlinkMsgHeader, addrMsg);
do {
attribute.parse();
} while (attribute.next() );
addrMsg.display();
printf("\n");
} while (netlinkMsgHeader.next());
} catch (Exception& ex) {
ex.display();
}
fflush(stdout);
}
}
};
}
int main(int argc, char* argv[])
{
try {
IPAddressMonitor monitor;
//IPAddressMonitor monitor(RTMGRP_IPV4_IFADDR);
monitor.bind();
monitor.recv();
} catch (Exception& ex) {
ex.display();
}
return 0;
}