initial import of NetBSD tree

1 files changed, 146 insertions, 0 deletions

diff --git a/usr.bin/tn3270/ctlr/screen.h b/usr.bin/tn3270/ctlr/screen.h
new file mode 100644
index 00000000000..f4a76154ea2
--- /dev/null
+++ b/usr.bin/tn3270/ctlr/screen.h
@@ -0,0 +1,146 @@
+/*-
+ * Copyright (c) 1988 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)screen.h	4.3 (Berkeley) 4/26/91
+ *	$Id: screen.h,v 1.1 1995/10/18 08:46:21 deraadt Exp $
+ */
+
+#define	INCLUDED_SCREEN
+
+/* defines and defines to describe how to deal with the screen */
+
+#if	!defined(MSDOS)
+#define	MAXNUMBERLINES		43		/* 3278-4 */
+#define	MAXNUMBERCOLUMNS	132		/* 3278-5 */
+#define	MAXSCREENSIZE		3564		/* (27*132) 3278-5 */
+#else	/* !defined(MSDOS) */	/* MSDOS has memory constraints */
+#define	MAXNUMBERLINES		25		/* XXX */
+#define	MAXNUMBERCOLUMNS	80
+#define	MAXSCREENSIZE		(MAXNUMBERLINES*MAXNUMBERCOLUMNS)
+#endif	/* !defined(MSDOS) */	/* MSDOS has memory constraints */
+#define LowestScreen()	0
+#define HighestScreen()	(ScreenSize-1)
+
+#define ScreenLineOffset(x)	((x)%NumberColumns)
+#define ScreenLine(x)	((int)((x)/NumberColumns))
+#define ScreenInc(x)	(((x)==HighestScreen())? LowestScreen():x+1)
+#define ScreenDec(x)	(((x)==LowestScreen())? HighestScreen():x-1)
+#define ScreenUp(x)	(((x)+(ScreenSize-NumberColumns))%ScreenSize)
+#define ScreenDown(x)	(((x)+NumberColumns)%ScreenSize)
+#define	IsOrder(x)	(Orders[x])
+#define BAIC(x)		((x)&0x3f)
+#define CIAB(x)		(CIABuffer[(x)&0x3f])
+#define BufferTo3270_0(x)	(CIABuffer[(int)((x)/0x40)])
+#define BufferTo3270_1(x)	(CIABuffer[(x)&0x3f])
+#define Addr3270(x,y)	(BAIC(x)*64+BAIC(y))
+#define SetBufferAddress(x,y)	((x)*NumberColumns+(y))
+
+/* These know how fields are implemented... */
+
+#define WhereAttrByte(p)	(IsStartField(p)? p: FieldDec(p))
+#define	WhereHighByte(p)	ScreenDec(FieldInc(p))
+#define WhereLowByte(p)		ScreenInc(WhereAttrByte(p))
+#define FieldAttributes(x)	(IsStartField(x)? GetHost(x) : \
+				    GetHost(WhereAttrByte(x)))
+#define FieldAttributesPointer(p)	(IsStartFieldPointer(p)? \
+				    GetHostPointer(p): \
+				    GetHost(WhereAttrByte((p)-&Host[0])))
+
+/*
+ * The MDT functions need to protect against the case where the screen
+ * is unformatted (sigh).
+ */
+
+/* Turn off the Modified Data Tag */
+#define TurnOffMdt(x) \
+    if (HasMdt(WhereAttrByte(x))) { \
+	ModifyMdt(x, 0); \
+    }
+
+/* Turn on the Modified Data Tag */
+#define TurnOnMdt(x) \
+    if (!HasMdt(WhereAttrByte(x))) { \
+	ModifyMdt(x, 1); \
+    }
+
+/* If this location has the MDT bit turned on (implies start of field) ... */
+#define HasMdt(x) \
+    ((GetHost(x)&(ATTR_MDT|ATTR_MASK)) == (ATTR_MDT|ATTR_MASK))
+
+	/*
+	 * Is the screen formatted?  Some algorithms change depending
+	 * on whether there are any attribute bytes lying around.
+	 */
+#define	FormattedScreen() \
+	    ((WhereAttrByte(0) != 0) || ((GetHost(0)&ATTR_MASK) == ATTR_MASK))
+
+					    /* field starts here */
+#define IsStartField(x)	((GetHost(x)&ATTR_MASK) == ATTR_MASK)
+#define IsStartFieldPointer(p)	((GetHostPointer(p)&ATTR_MASK) == ATTR_MASK)
+
+#define NewField(p,a)	SetHost(p, (a)|ATTR_MASK)
+#define DeleteField(p)	SetHost(p, 0)
+#define	DeleteAllFields()
+
+/* The following are independent of the implementation of fields */
+#define IsProtectedAttr(p,a)	(IsStartField(p) || ((a)&ATTR_PROT))
+#define IsProtected(p)	IsProtectedAttr(p,FieldAttributes(p))
+
+#define IsUnProtected(x)	(!IsProtected(x))
+
+#define IsAutoSkip(x)	(FieldAttributes(x)&ATTR_AUTO_SKIP)
+
+#define IsNonDisplayAttr(c)	(((c)&ATTR_DSPD_MASK) == ATTR_DSPD_NONDISPLAY)
+#define	IsNonDisplay(p)	IsNonDisplayAttr(FieldAttributes(p))
+
+#define IsHighlightedAttr(c) \
+		(((c)&ATTR_DSPD_MASK) == ATTR_DSPD_HIGH)
+#define	IsHighlighted(p) \
+		(IsHighlightedAttr(FieldAttributes(p)) && !IsStartField(p))
+
+typedef unsigned char ScreenImage;
+
+extern int
+	FieldFind();
+
+extern char
+	CIABuffer[];
+
+#define	GetGeneric(i,h)		(h)[i]
+#define	GetGenericPointer(p)	(*(p))
+#define	SetGeneric(i,c,h)	((h)[i] = (c))
+#define	ModifyGeneric(i,what,h)	{(h)[i] what;}
+
+#define GetHost(i)		GetGeneric(i,Host)
+#define GetHostPointer(p)	GetGenericPointer(p)
+#define	SetHost(i,c)		SetGeneric(i,c,Host)
+#define	ModifyHost(i,what)	ModifyGeneric(i,what,Host)