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     EMDUPMAP(K)               UNIX System V               EMDUPMAP(K)



     Name
          emdupmap - duplicates channel mapping

     Syntax
          #include "sys/tty.h"

          int
          emdupmap(tp, ntp)
          struct tty *tp, *ntp;

     Description
          The emdupmap routine duplicates the mapping of a given
          channel for a new channel.

     Parameters
          The tp parameter is a pointer to the tty structure for the
          line the mapping should be duplicated from.

          The ntp parameter is a pointer to the tty structure for the
          line where the characters are to be placed.

     Return Value
          This routine has no return value, but the routine can return
          immediately with no work done if both arguments point to the
          same tty structure.

     Notes
          Note that this routine is for use only within character
          device drivers.

     See Also
          emunmap(K)

                                                      (printed 7/6/89)