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Annotation of 43BSD/lib/libc/gen/isatty.c, revision 1.1

1.1     ! root        1: #if defined(LIBC_SCCS) && !defined(lint)
        !             2: static char sccsid[] = "@(#)isatty.c   5.2 (Berkeley) 3/9/86";
        !             3: #endif LIBC_SCCS and not lint
        !             4: 
        !             5: /*
        !             6:  * Returns 1 iff file is a tty
        !             7:  */
        !             8: 
        !             9: #include <sgtty.h>
        !            10: 
        !            11: isatty(f)
        !            12: {
        !            13:        struct sgttyb ttyb;
        !            14: 
        !            15:        if (ioctl(f, TIOCGETP, &ttyb) < 0)
        !            16:                return(0);
        !            17:        return(1);
        !            18: }

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