NAME

       isatty - does this descriptor refer to a terminal

SYNOPSIS

       #include <unistd.h>
       int isatty ( int desc );

DESCRIPTION

       returns  1  if  desc  is an open descriptor connected to a
       terminal and 0 else.

CONFORMING TO

       SVID, AT&T, X/OPEN, BSD 4.3

SEE ALSO

       fstat(2), ttyname(3)