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TCP_CONNECT(3)		   libdill Library Functions		TCP_CONNECT(3)

NAME
       tcp_connect - creates a connection to remote TCP	endpoint

SYNOPSIS
	      #include <libdill.h>

	      int tcp_connect(
		  const	struct ipaddr* addr,
		  int64_t deadline);

DESCRIPTION
       TCP  protocol  is  a reliable bytestream	protocol for transporting data
       over network.  It is defined in RFC 793.

       This function creates a connection to a remote TCP endpoint.

       addr: IP	address	to connect to.

       deadline: A point in time when the operation should time	out,  in  mil-
       liseconds.   Use	the now	function to get	your current point in time.  0
       means immediate timeout,	i.e., perform the operation if possible	or re-
       turn  without  blocking	if  not.  -1 means no deadline,	i.e., the call
       will block forever if the operation cannot be performed.

       The socket can be cleanly shut down using tcp_close function.

       This function is	not available  if  libdill  is	compiled  with	--dis-
       able-sockets option.

RETURN VALUE
       In  case	 of  success the function returns newly	created	socket handle.
       In case of error	it returns -1 and sets errno to	one of the values  be-
       low.

ERRORS
       o ECANCELED: Current coroutine was canceled.

       o ECONNREFUSED: The target address was not listening for	connections or
	 refused the connection	request.

       o ECONNRESET: Remote host reset the connection request.

       o EHOSTUNREACH: The destination host cannot be reached.

       o EINVAL: Invalid argument.

       o EMFILE: The maximum number of file descriptors	in the process are al-
	 ready open.

       o ENETDOWN:  The	 local network interface used to reach the destination
	 is down.

       o ENETUNREACH: No route to the network is present.

       o ENFILE: The maximum number of file descriptors	in the system are  al-
	 ready open.

       o ENOMEM: Not enough memory.

       o ETIMEDOUT: Deadline was reached.

EXAMPLE
	      struct ipaddr addr;
	      ipaddr_remote(&addr, "www.example.org", 80, 0, -1);
	      int s = tcp_connect(&addr, -1);
	      bsend(s, "ABC", 3, -1);
	      char buf[3];
	      brecv(s, buf, sizeof(buf), -1);
	      tcp_close(s);

SEE ALSO
       brecv(3)	 brecvl(3)  bsend(3)  bsendl(3)	hclose(3) now(3) tcp_accept(3)
       tcp_accept_mem(3)    tcp_close(3)    tcp_connect_mem(3)	   tcp_done(3)
       tcp_fromfd(3)	tcp_fromfd_mem(3)    tcp_listen(3)   tcp_listen_mem(3)
       tcp_listener_fromfd(3) tcp_listener_fromfd_mem(3)

libdill								TCP_CONNECT(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLE | SEE ALSO

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