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  ter-
     minal and 0 else.

CONFORMING TO

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

SEE ALSO

     fstat(2), ttyname(3)