VMS Help TCPIP Services, Programming Interfaces, Sockets API, shutdown()  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Shuts down all or part of a bidirectional connection on a socket.
    This function does not allow further receives or sends, or both.
    The $QIO equivalent is the IO$_DEACCESS function with the IO$M_
    SHUTDOWN function modifier.
    Format
      #include  <socket.h>
      int shutdown  ( int s, int how) ;

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