C++ (Cpp) sockaddr_in_init Exemples

Exemple #1

int
nfs_boot_deladdress(struct ifnet *ifp, struct lwp *lwp, uint32_t addr)
{
	struct socket *so;
	struct ifreq ifr;
	struct sockaddr_in sin;
	struct in_addr ia = {.s_addr = addr};
	int error;

	/*
	 * Get a socket to use for various things in here.
	 * After this, use "goto out" to cleanup and return.
	 */
	error = socreate(AF_INET, &so, SOCK_DGRAM, 0, lwp, NULL);
	if (error) {
		printf("deladdress: socreate, error=%d\n", error);
		return (error);
	}

	memset(&ifr, 0, sizeof(ifr));
	memcpy(ifr.ifr_name, ifp->if_xname, IFNAMSIZ);

	sockaddr_in_init(&sin, &ia, 0);
	ifreq_setaddr(SIOCDIFADDR, &ifr, sintocsa(&sin)); 

	error = ifioctl(so, SIOCDIFADDR, &ifr, lwp);
	if (error) {
		printf("deladdress, error=%d\n", error);
		goto out;
	}

out:
	soclose(so);
	return (error);
}

Exemple #2

Fichier : tcp-relay.c Projet : apankrat/tcp-striper

int main(int argc, char ** argv)
{
	event_loop * evl;
	io_pipe * io_c2p;
	io_pipe * io_p2s;
	io_bridge * br;
	sockaddr_in sa;
	char buf[128];
	int sk, c2p, p2s;
	int yes = 1;

	//
//	signal(SIGPIPE, SIG_IGN);

	//
	evl = new_event_loop_select();

	//
	if (sk_init() < 0)
		return 1;

	sk = sk_create(AF_INET, SOCK_STREAM, 0);
	if (sk < 0)
		return 2;

	sockaddr_in_init(&sa);
	SOCKADDR_IN_PORT(&sa) = htons(55555);

	if (sk_setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof yes) < 0 ||
	    sk_bind_ip4(sk, &sa) < 0 ||
	    sk_listen(sk, 8) < 0)
		return 3;

	printf("listening on %s ...\n", sa_to_str(&sa, buf, sizeof buf));

	//
	c2p = sk_accept_ip4(sk, &sa);
	if (c2p < 0)
		return 4;
	
	printf("accepted\n");
	sk_unblock(c2p);

	//
	SOCKADDR_IN_ADDR(&sa) = inet_addr(argc > 1 ? argv[1] : "127.0.0.1");
	SOCKADDR_IN_PORT(&sa) = htons( (argc > 2) ? atoi(argv[2]) : 22 );
	
	p2s = sk_create(AF_INET, SOCK_STREAM, 0);
	if (p2s < 0)
		return 5;

	if (sk_unblock(p2s) < 0)
		return 6;
	
	printf("connecting to %s ...\n", sa_to_str(&sa, buf, sizeof buf));

	if (sk_connect_ip4(p2s, &sa) < 0 &&
	    sk_conn_fatal(sk_errno(p2s)))
		return 7;

	//
	io_c2p = new_tcp_pipe(c2p);
	io_p2s = new_tcp_pipe(p2s);

	br = new_io_bridge(io_c2p, io_p2s);
	br->on_shutdown = on_bridge_down;

	br->init(br, evl);

	while (! enough)
	{
		static uint tick = 0;
		evl->monitor(evl, 100);
		
		if ( (tick++ % 17) && ! enough )
			continue;

		printf("\r%u  |  [%c%c %10llu %10llu %4u] [%c%c %10llu %10llu %4u]", 
			tick++, 
			br->l->pipe->writable ? 'w' :
			br->l->pipe->fin_sent ? 'x' : '-',
			br->l->pipe->readable ? 'r' : 
			br->l->pipe->fin_rcvd ? 'x' : '-',
			br->l->tx, br->l->rx, br->l->congestions,
			br->r->pipe->writable ? 'w' : 
			br->r->pipe->fin_sent ? 'x' : '-',
			br->r->pipe->readable ? 'r' : 
			br->r->pipe->fin_rcvd ? 'x' : '-',
			br->r->tx, br->r->rx, br->r->congestions);

		fflush(stdout);
	}

	printf("\n");

	return 0;
}