--- Net2/sys/tty.h	2018/04/24 18:03:57	1.1.1.1
+++ Net2/sys/tty.h	2018/04/24 18:16:05	1.1.1.3
@@ -30,20 +30,45 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)tty.h	7.10 (Berkeley) 6/26/91
+ *	from: @(#)tty.h	7.10 (Berkeley) 6/26/91
+ *	tty.h,v 1.10 1993/07/19 05:52:27 mycroft Exp
  */
 
+#ifndef _SYS_TTY_H_
+#define _SYS_TTY_H_
+
 #include <sys/termios.h>
+#include <sys/select.h>			/* for struct selinfo */
 
+#ifndef REAL_CLISTS
+/*
+ * Clists are actually ring buffers. The c_cc, c_cf, c_cl fields have
+ * exactly the same behaviour as in true clists.
+ * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality
+ * (but, saves memory and cpu time)
+ * 
+ * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!!
+ */
+struct clist {
+	int	c_cc;		/* count of characters in queue */
+	int	c_cn;		/* total ring buffer length */
+	u_char	*c_cf;		/* points to first character */
+	u_char	*c_cl;		/* points to next open character */
+	u_char	*c_cs;		/* start of ring buffer */
+	u_char	*c_ce;		/* c_ce + c_len */
+	u_char	*c_cq;		/* N bits/bytes long, see tty_subr.c */
+};
+#else
 /*
  * Clists are character lists, which is a variable length linked list
  * of cblocks, wiht a count of the number of characters in the list.
  */
 struct clist {
-	int	c_cc;		/* count of characters in queue */
-	char	*c_cf;		/* first character/cblock */
-	char	*c_cl;		/* last chararacter/cblock */
+	int	c_cc;
+	u_char	*c_cf;
+	u_char	*c_cl;
 };
+#endif
 
 /*
  * Per-tty structure.
@@ -56,10 +81,10 @@ struct tty {
 	struct	clist t_rawq;		/* queues */
 	struct	clist t_canq;
 	struct	clist t_outq;
-	int	(*t_oproc)();		/* device */
+	int	(*t_oproc) __P((struct tty *tp));	/* device */
 	int	(*t_param)();		/* device */
-	struct	proc *t_rsel;		/* tty */
-	struct	proc *t_wsel;
+	struct selinfo t_rsel;		/* tty */
+	struct selinfo t_wsel;
 	caddr_t	T_LINEP; 		/* XXX */
 	caddr_t	t_addr;			/* ??? */
 	dev_t	t_dev;			/* device */
@@ -87,6 +112,7 @@ struct tty {
 	long	t_rawcc;
 	long	t_outcc;
 	short	t_gen;			/* generation number */
+	short	t_mask;			/* interrupt mask */
 };
 
 #define	TTIPRI	25			/* sleep priority for tty reads */
@@ -116,8 +142,8 @@ extern	struct ttychars ttydefaults;
 #define	TS_TTSTOP	0x000100	/* output stopped by ctl-s */
 /* was	TS_HUPCLS	0x000200 	 * hang up upon last close */
 #define	TS_TBLOCK	0x000400	/* tandem queue blocked */
-#define	TS_RCOLL	0x000800	/* collision in read select */
-#define	TS_WCOLL	0x001000	/* collision in write select */
+/* was	TS_RCOLL	0x000800	 * collision in read select */
+/* was	TS_WCOLL	0x001000	 * collision in write select */
 #define	TS_ASYNC	0x004000	/* tty in async i/o mode */
 /* state for intra-line fancy editing work */
 #define	TS_BKSL		0x010000	/* state for lowercase \ work */
@@ -161,6 +187,14 @@ struct speedtab {
 #define isbackground(p, tp)	(isctty((p), (tp)) && \
 				(p)->p_pgrp != (tp)->t_pgrp)
 /*
+ * Empty queue
+ */
+#define flushq(qq) { \
+        register struct clist *q = qq; \
+        if (q->c_cc) \
+                ndflush(q, q->c_cc); \
+}
+/*
  * Modem control commands (driver).
  */
 #define	DMSET		0
@@ -171,4 +205,65 @@ struct speedtab {
 #ifdef KERNEL
 /* symbolic sleep message strings */
 extern	 char ttyin[], ttyout[], ttopen[], ttclos[], ttybg[], ttybuf[];
+
+#ifdef __STDC__
+struct uio;
 #endif
+
+/* clist stuff */
+void	cinit		__P((void));
+int	clalloc		__P((struct clist *clp, int size, int quot));
+void	clfree		__P((struct clist *clp));
+int	getc		__P((struct clist *clp));
+int	q_to_b		__P((struct clist *clp, u_char *cp, int count));
+int	ndqb		__P((struct clist *clp, int flag));
+void	ndflush		__P((struct clist *clp, int count));
+int	putc		__P((int c, struct clist *clp));
+int	b_to_q		__P((u_char *cp, int count, struct clist *clp));
+u_char *nextc		__P((struct clist *clp, u_char *cp, int *c));
+u_char *firstc		__P((struct clist *clp, int *c));
+int	unputc		__P((struct clist *clp));
+void	catq		__P((struct clist *from, struct clist *to));
+
+int	ttioctl		__P((struct tty *tp, int com, caddr_t data, int flag));
+void	ttsetwater	__P((struct tty *tp));
+void	ttstart		__P((struct tty *tp));
+int	ttspeedtab	__P((int speed, struct speedtab *table));
+void	ttwakeup	__P((struct tty *tp));
+int	ttnread		__P((struct tty *tp));
+int	ttcompat	__P((struct tty *tp, int com, caddr_t data, int flag));
+void	ttyrub		__P((int c, struct tty *tp));
+void	ttyrubo		__P((struct tty *tp, int cnt));
+void	ttyretype	__P((struct tty *tp));
+void	ttyecho		__P((int c, struct tty *tp));
+void	ttyoutstr	__P((char *cp, struct tty *tp));
+int	ttywait		__P((struct tty *tp));
+void	ttyflush	__P((struct tty *tp, int rw));
+void	ttyblock	__P((struct tty *tp));
+void	ttychars	__P((struct tty *tp));
+int	ttyclose	__P((struct tty *tp));
+void	ttypend		__P((struct tty *tp));
+int	ttysleep	__P((struct tty *tp, caddr_t chan, int pri,
+			     char *wmesg, int timo));
+void	ttyinfo		__P((struct tty *tp));
+
+struct tty *ttymalloc	__P((void));
+void	ttyfree		__P((struct tty *));
+
+int	ttyopen __P((dev_t dev, struct tty *tp));
+void	ttylclose __P((struct tty *tp, int flag));
+int	ttread __P((struct tty *tp, struct uio *uio, int flag));
+int	ttwrite __P((struct tty *tp, struct uio *uio, int flag));
+void	ttyinput __P((int data, struct tty *tp));
+void	ttstart __P((struct tty *tp));
+int	ttymodem __P((struct tty *tp, int flag));
+
+/* XXX slip stuff for the line discipline init in tty_conf.c */
+int	slopen __P((dev_t dev, struct tty *tp));
+void	slclose __P((struct tty *tp, int flag));
+int	sltioctl __P((struct tty *vp, int cmd, caddr_t data, int flag));
+void	slinput __P((int data, struct tty *tp));
+void	slstart __P((struct tty *tp));
+#endif
+
+#endif /* !_SYS_TTY_H_ */