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[unix-history] / usr / src / libc / gen / isatty.c

/*
* Returns 1 iff file is a tty
*/

#include <sgtty.h>

isatty(f)
{
       struct sgttyb ttyb;

       if (gtty(f, &ttyb) < 0)
               return(0);
       return(1);
}