T_RCVCONNECT(3N)           DG/UX 4.30            T_RCVCONNECT(3N)



     NAME
          t_rcvconnect - receive the confirmation from a connect
          request

     SYNOPSIS
          #include <tiuser.h>

          int t_rcvconnect(fd, call)
          int fd;
          struct t_call *call;

     DESCRIPTION
          This function enables a calling transport user to determine
          the status of a previously sent connect request and is used
          in conjunction with t_connect to establish a connection in
          asynchronous mode.  The connection will be established on
          successful completion of this function.

          Fd identifies the local transport endpoint where
          communication will be established, and call contains
          information associated with the newly established
          connection.  Call points to a t_call structure which
          contains the following members:

               struct netbuf addr;
               struct netbuf opt;
               struct netbuf udata;
               int sequence;

          Netbuf is described in intro(3).  In call, addr returns the
          protocol address associated with the responding transport
          endpoint, opt presents any protocol-specific information
          associated with the connection, udata points to optional
          user data that may be returned by the destination transport
          user during connection establishment, and sequence has no
          meaning for this function.

          The maxlen [see netbuf in intro(3)] field of each argument
          must be set before issuing this function to indicate the
          maximum size of the buffer for each.  However, call may be
          NULL, in which case no information is given to the user on
          return from t_rcvconnect.  By default, t_rcvconnect executes
          in synchronous mode and waits for the connection to be
          established before returning.  On return, the addr, opt, and
          udata fields reflect values associated with the connection.

          If O_NDELAY is set (via t_open or fcntl), t_rcvconnect
          executes in asynchronous mode, and reduces to a poll for
          existing connect confirmations.  If none are available,
          t_rcvconnect fails and returns immediately without waiting
          for the connection to be established.  (See TNODATA below.)
          t_rcvconnect must be re-issued at a later time to complete



     Licensed material--property of copyright holder(s)         Page 1

     T_RCVCONNECT(3N)           DG/UX 4.30            T_RCVCONNECT(3N)



          the connection establishment phase and retrieve the
          information returned in call.

          On failure, t_errno may be set to one of the following:

          [TBADF]             The specified file descriptor does not
                              refer to a transport endpoint.

          [TBUFOVFLW]         The number of bytes allocated for an
                              incoming argument is not sufficient to
                              store the value of that argument and the
                              connect information to be returned in
                              call will be discarded.  The provider's
                              state, as seen by the user, will be
                              changed to DATAXFER.

          [TNODATA]           O_NDELAY was set, but a connect
                              confirmation has not yet arrived.

          [TLOOK]             An asynchronous event has occurred on
                              this transport connection and requires
                              immediate attention.

          [TNOTSUPPORT]       This function is not supported by the
                              underlying transport provider.

          [TSYSERR]           A system error has occurred during
                              execution of this function.

     SEE ALSO
          intro(3), t_accept(3N), t_bind(3N), t_connect(3N),
          t_listen(3N), t_open(3N).

     DIAGNOSTICS
          t_rcvconnect returns 0 on success and -1 on failure and
          t_errno is set to indicate the error.



















     Licensed material--property of copyright holder(s)         Page 2