


      TTYNAM(3F)                  (bsd 4.2)                  TTYNAM(3F)



      NAME
           ttynam, isatty - find name of a terminal port

      SYNOPSIS
           character*(*) function ttynam (lunit)

           logical function isatty (lunit)

      DESCRIPTION
           Ttynam returns a blank padded path name of the terminal
           device associated with logical unit lunit.

           Isatty returns .true. if lunit is associated with a terminal
           device, .false. otherwise.

      FILES
           /dev/*
           /usr/lib/libU77.a

      DIAGNOSTICS
           Ttynam returns an empty string (all blanks) if lunit is not
           associated with a terminal device in directory `/dev'.

































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