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TTYN(III)                    1/15/73                    TTYN(III)



NAME
     ttyn - return name of current typewriter

SYNOPSIS
     jsr  pc,ttyn

     ttyn(file)


DESCRIPTION
     Ttyn  hunts  up  the last character of the name of the type-
     writer which is the standard input (from as) or is specified
     by the argument file descriptor (from C).  If n is returned,
     the typewriter name is then ``/dev/ttyn''.

     x is returned if the indicated file does not correspond to a
     typewriter.

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