#include <stdio.h>
  #include <stdlib.h>
  #include <string.h>

  #include <sys/poll.h>
  #include <sys/socket.h>
  #include <sys/types.h>
  #include <unistd.h>

  #include <linux/types.h>
  #include <linux/netlink.h>

  void die(char *s)
  {
	write(2,s,strlen(s));
	exit(1);
  }

  int main(int argc, char *argv[])
  {
	struct sockaddr_nl nls;
	struct pollfd pfd;
	char buf[512];

	// Open hotplug event netlink socket

	memset(&nls,0,sizeof(struct sockaddr_nl));
	nls.nl_family = AF_NETLINK;
	nls.nl_pid = getpid();
	nls.nl_groups = -1;

	pfd.events = POLLIN;
	pfd.fd = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
	if (pfd.fd==-1)
		die("Not root\n");

	// Listen to netlink socket

	if (bind(pfd.fd, (void *)&nls, sizeof(struct sockaddr_nl)))
		die("Bind failed\n");
	while (-1!=poll(&pfd, 1, -1)) {
		int i, len = recv(pfd.fd, buf, sizeof(buf), MSG_DONTWAIT);
		if (len == -1) die("recv\n");

		// Print the data to stdout.
		i = 0;
		while (i<len) {
			printf("%s\n", buf+i);
			i += strlen(buf+i)+1;
		}
	}
	die("poll\n");

	// Dear gcc: shut up.
	return 0;
  }