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/*
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 *
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 * Conditional compilation definitions needed in ifdef.c and postio.c.
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 *
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 */
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#ifdef SYSV
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#include <termio.h>
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#ifdef DKSTREAMS
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#include <sys/stream.h>
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#include <sys/stropts.h>
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#endif
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#endif
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#ifdef V9
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#include <sys/filio.h>
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#include <sys/ttyio.h>
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extern int	tty_ld;
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#endif
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#ifdef BSD4_2
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#include <sgtty.h>
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#include <sys/time.h>
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#include <errno.h>
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#define FD_ZERO(s) (s) = 0
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#define FD_SET(n,s) (s) |= 1 << (n)
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extern int	errno;
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#endif
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#ifdef DKHOST
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#include <dk.h>
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#include <sysexits.h>
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extern char	*dtnamer();
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extern int	dkminor();
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#endif
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/*
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 *
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 * External variable declarations - most (if not all) are defined in postio.c and
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 * needed by the routines in ifdef.c.
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 *
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 */
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extern char	*line;			/* printer is on this line */
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extern int	ttyi;			/* input */
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extern int	ttyo;			/* and output file descriptors */
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extern FILE	*fp_log;		/* just for DKHOST stuff */
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extern char	mesg[];			/* exactly what came back on ttyi */
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extern char	*endmesg;		/* one in front of last free slot in mesg */
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extern int	next;			/* next character goes in mesg[next] */
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extern short	baudrate;		/* printer is running at this speed */
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extern int	stopbits;		/* and expects this many stop bits */
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extern int	interactive;		/* TRUE for interactive mode */
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extern int	whatami;		/* a READ or WRITE process - or both */
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extern int	canread;		/* allows reads */
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extern int	canwrite;		/* and writes if TRUE */
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