BSD 4.4 Lite Lib Sources

71 files changed, 9769 insertions, 0 deletions

diff --git a/lib/libcurses/EXAMPLES/ex1.c b/lib/libcurses/EXAMPLES/ex1.c
new file mode 100644
index 0000000..76da41b
--- /dev/null
+++ b/lib/libcurses/EXAMPLES/ex1.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1992, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ex1.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+#include <sys/types.h>
+#include <curses.h>
+#include <stdio.h>
+#include <signal.h>
+
+
+#define YSIZE 10 
+#define XSIZE 20
+
+int quit();
+
+main()
+{
+	int i, j, c;
+	size_t len;
+	char id[100];
+	FILE *fp;
+	char *s;
+
+	initscr();			/* Always call initscr() first */
+	signal(SIGINT, quit);		/* Make sure wou have a 'cleanup' fn */
+	crmode();			/* We want cbreak mode */
+	noecho();			/* We want to have control of chars */
+	delwin(stdscr);			/* Create our own stdscr */
+	stdscr = newwin(YSIZE, XSIZE, 10, 35); 
+	flushok(stdscr, TRUE);		/* Enable flushing of stdout */
+	scrollok(stdscr, TRUE);		/* Enable scrolling */
+	erase();			/* Initially, clear the screen */
+
+	standout();
+	move(0,0);
+	while (1) {
+		c = getchar();
+		switch(c) {
+		case 'q':		/* Quit on 'q' */
+			quit();
+			break;
+		case 's':		/* Go into standout mode on 's' */
+			standout();
+			break;
+		case 'e':		/* Exit standout mode on 'e' */
+			standend();
+			break;
+		case 'r':		/* Force a refresh on 'r' */
+			wrefresh(curscr);
+			break;
+		default:		/* By default output the character */
+			addch(c);
+			refresh();
+		}
+	}
+}
+
+
+int
+quit()
+{
+	erase();		/* Terminate by erasing the screen */
+	refresh();
+	endwin();		/* Always end with endwin() */
+	delwin(curscr);		/* Return storage */
+	delwin(stdscr);
+	putchar('\n');
+	exit(0);
+}
+
+				
+	
+	
diff --git a/lib/libcurses/Makefile b/lib/libcurses/Makefile
new file mode 100644
index 0000000..06de56b
--- /dev/null
+++ b/lib/libcurses/Makefile
@@ -0,0 +1,20 @@
+#	@(#)Makefile	8.2 (Berkeley) 1/2/94
+
+CFLAGS+=#-DTFILE=\"/dev/ttyp0\"
+CFLAGS+=-D_CURSES_PRIVATE -I${.CURDIR}
+LIB=	curses
+SRCS=	addbytes.c addch.c addnstr.c box.c clear.c clrtobot.c clrtoeol.c \
+	cr_put.c ctrace.c cur_hash.c curses.c delch.c deleteln.c delwin.c \
+	erase.c fullname.c getch.c getstr.c id_subwins.c idlok.c initscr.c \
+	insch.c insertln.c longname.c move.c mvwin.c newwin.c overlay.c \
+	overwrite.c printw.c putchar.c refresh.c scanw.c scroll.c setterm.c \
+	standout.c toucholap.c touchwin.c tscroll.c tstp.c tty.c unctrl.c
+MAN3=	curses.0
+
+beforeinstall:
+	-cd ${.CURDIR}; cmp -s curses.h ${DESTDIR}/usr/include/curses.h > \
+	    /dev/null 2>&1 || \
+	    install -c -o ${BINOWN} -g ${BINGRP} -m 444 curses.h \
+	    ${DESTDIR}/usr/include
+
+.include <bsd.lib.mk>
diff --git a/lib/libcurses/PSD.doc/Makefile b/lib/libcurses/PSD.doc/Makefile
new file mode 100644
index 0000000..f93ee64
--- /dev/null
+++ b/lib/libcurses/PSD.doc/Makefile
@@ -0,0 +1,35 @@
+#	@(#)Makefile	8.1 (Berkeley) 8/14/93
+
+DIR=	psd/19.curses
+SRCS=	Master
+MACROS=	-me
+
+CLEANFILES+=win_st.gr twinkle1.gr twinkle2.gr life.gr intro.2.tbl appen.A.tbl \
+	ex1.gr ex2.gr
+
+.SUFFIXES:
+.SUFFIXES: .c .gr
+
+#
+# this section formats C input source into nice troffable (or nroffable)
+# versions.  It uses the capabilites of "vgrind", which sets keywords in
+# bold font, and comments in italics.
+#
+
+# Don't re-run vgrind unless you want to patch the output files.
+VFONT=	/usr/libexec/vfontedpr
+.c.gr:
+	${VFONT} $*.c | grep -v "^'wh" > $*.gr
+
+paper.ps: ${SRCS}
+	${ROFF} ${SRCS} > ${.TARGET}
+
+Master: twinkle1.gr ex1.gr ex2.gr fns.doc intro.5 intro.2.tbl intro.0 intro.1 \
+	intro.3 intro.4 intro.6 macros c_macros
+
+intro.2.tbl: intro.2
+	${TBL} intro.2 > intro.2.tbl
+
+.include <bsd.doc.mk>
+
+
diff --git a/lib/libcurses/PSD.doc/Master b/lib/libcurses/PSD.doc/Master
new file mode 100644
index 0000000..d9e7171
--- /dev/null
+++ b/lib/libcurses/PSD.doc/Master
@@ -0,0 +1,54 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)Master	8.1 (Berkeley) 6/8/93
+.\"
+.ds Ln Screen Package
+.so macros
+.so c_macros
+.so intro.0
+.pn 3
+.bp
+.so intro.1
+.so intro.2.tbl
+.so intro.3
+.so intro.4
+.so intro.5
+.so intro.6
+.bp
+.so appen.A
+.pn 2
+.oh '\*(Ln''PS1:19-%'
+.eh 'PS1:19-%''\*(Ln'
+.bp
+.bi Contents
+.sp
+.xp
diff --git a/lib/libcurses/PSD.doc/appen.A b/lib/libcurses/PSD.doc/appen.A
new file mode 100644
index 0000000..a40c95d
--- /dev/null
+++ b/lib/libcurses/PSD.doc/appen.A
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)appen.A	8.1 (Berkeley) 6/8/93
+.\"
+.ie t .oh '\*(Ln Appendix A''PS1:19-%'
+.eh 'PS1:19-%''\*(Ln Appendix A'
+.el .he ''\fIAppendix A\fR''
+.bp
+.(x
+.ti 0
+.b "Appendix A"
+.)x
+.sh 1 "Examples" 1
+.pp
+Here we present a few examples
+of how to use the package.
+They attempt to be representative,
+though not comprehensive.  Further examples can be found in the games section
+of the source tree and in various utilities that use the screen such as 
+.i systat(1) .
+.pp
+The following examples are intended to demonstrate
+the basic structure of a program
+using the package.  An additional, more comprehensive, program can be found in
+the source code in the 
+\fIexamples\fP subdirectory.
+.sh 2 "Simple Character Output"
+.pp
+This program demonstrates how to set up a window and output characters to it.
+Also, it demonstrates how one might control the output to the window.  If
+you run this program, you will get a demonstration of the character output
+chracteristics discussed in the above Character Output section.
+.(l I
+.so ex1.gr
+.)l
+.sh 2 "Twinkle"
+.pp
+This is a moderately simple program which prints
+patterns on the screen.
+It switches between patterns of asterisks,
+putting them on one by one in random order,
+and then taking them off in the same fashion.
+It is more efficient to write this
+using only the motion optimization,
+as is demonstrated below.
+.(l I
+.so twinkle1.gr
+.)l
diff --git a/lib/libcurses/PSD.doc/appen.B b/lib/libcurses/PSD.doc/appen.B
new file mode 100644
index 0000000..0f89fa5
--- /dev/null
+++ b/lib/libcurses/PSD.doc/appen.B
@@ -0,0 +1,201 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)appen.B	8.1 (Berkeley) 6/8/93
+.\"
+.ie t .oh '\*(Ln Appendix B''PS1:19-%'
+.eh 'PS1:19-%''\*(Ln Appendix B'
+.el .he ''\fIAppendix B\fR''
+.bp
+.(x
+.ti 0
+.b "Appendix B"
+.)x
+.nr $1 0
+.sh 1 "The WINDOW structure"
+.pp
+The WINDOW structure is defined as follows:
+.(l I
+.so win_st.gr
+.)l
+.pp
+.Vn \*_cury \\*
+.(f
+\**
+All variables not normally accessed directly by the user
+are named with an initial
+.Bq \*_
+to avoid conflicts with the user's variables.
+.)f
+and
+.Vn \*_curx
+are the current \*y for the window.
+New characters added to the screen
+are added at this point.
+.Vn \*_maxy
+and
+.Vn \*_maxx
+are the maximum values allowed for
+.Vn \*_cury\*,\*_curx ). (
+.Vn \*_begy
+and
+.Vn \*_begx
+are the starting \*y on the terminal for the window,
+.i i.e. ,
+the window's home.
+.Vn \*_cury ,
+.Vn \*_curx ,
+.Vn \*_maxy ,
+and
+.Vn \*_maxx
+are measured relative to
+.Vn \*_begy\*,\*_begx ), (
+not the terminal's home.
+.pp
+.Vn \*_clear
+tells if a clear-screen sequence is to be generated
+on the next
+.Fn refresh
+call.
+This is only meaningful for screens.
+The initial clear-screen for the first
+.Fn refresh
+call is generated by initially setting clear to be TRUE for
+.Vn curscr ,
+which always generates a clear-screen if set,
+irrelevant of the dimensions of the window involved.
+.Vn \*_leave
+is TRUE if the current \*y and the cursor
+are to be left after the last character changed on the terminal,
+or not moved if there is no change.
+.Vn \*_scroll
+is TRUE
+if scrolling is allowed.
+.pp
+.Vn \*_y
+is a pointer to an array of lines which describe the terminal.
+Thus:
+.(l
+\*_y[i]
+.)l
+.lp
+is a pointer to the
+.Vn i th
+line, and
+.(l
+\*_y[i][j]
+.)l
+.lp
+is the
+.Vn j th
+character on the
+.Vn i th
+line.
+.Vn \*_flags
+can have one or more values
+or'd into it.
+.pp
+For windows that are not subwindows,
+.Vn \*_orig
+is
+NULL .
+For subwindows,
+it points to the main window
+to which the window is subsidiary.
+.Vn \*_nextp
+is a pointer in a circularly linked list
+of all the windows which are subwindows of the same main window,
+plus the main window itself.
+.pp
+.Vn \*_firstch
+and
+.Vn \*_lastch
+are
+.Fn malloc ed
+arrays which contain the index of the
+first and last changed characters
+on the line.
+.Vn \*_ch\*_off
+is the x offset for the window
+in the
+.Vn \*_firstch
+and
+.Vn \*_lastch
+arrays for this window.
+For main windows,
+this is always 0;
+for subwindows
+it is the difference between the starting point of the main window
+and that of the subindow,
+so that change markers can be set relative to the main window.
+This makes these markers global in scope.
+.pp
+All subwindows share the appropriate portions of
+.Vn _y ,
+.Vn _firstch ,
+.Vn _lastch ,
+and
+.Vn _insdel
+with their main window.
+.pp
+.b \*_ENDLINE
+says that the end of the line for this window
+is also the end of a screen.
+.b \*_FULLWIN
+says that this window is a screen.
+.b \*_SCROLLWIN
+indicates that the last character of this screen
+is at the lower right-hand corner of the terminal;
+.i i.e. ,
+if a character was put there,
+the terminal would scroll.
+.b \*_FULLLINE
+says that the width of a line is the same as the width of the terminal.
+If
+.b \*_FLUSH
+is set,
+it says that
+.Fn fflush "" "" stdout
+should be called at the end of each
+.Fn refresh
+.b \*_STANDOUT
+says that all characters added to the screen
+are in standout mode.
+.b \*_INSDEL
+is reserved for future use,
+and is set by
+.Fn idlok .
+.Vn \*_firstch
+is set to
+.b \*_NOCHANGE
+for lines on which there has been no change
+since the last
+.Fn refresh .
diff --git a/lib/libcurses/PSD.doc/appen.C b/lib/libcurses/PSD.doc/appen.C
new file mode 100644
index 0000000..65bef2b
--- /dev/null
+++ b/lib/libcurses/PSD.doc/appen.C
@@ -0,0 +1,127 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)appen.C	8.1 (Berkeley) 6/8/93
+.\"
+.ie t .oh '\*(Ln Appendix A''PS1:19-%'
+.eh 'PS1:19-%''\*(Ln Appendix A'
+.el .he ''\fIAppendix A\fR''
+.bp
+.(x
+.ti 0
+.b "Appendix A"
+.)x
+.sh 1 "Examples" 1
+.pp
+Here we present a few examples
+of how to use the package.
+They attempt to be representative,
+though not comprehensive.  Further examples can be found in the games section
+of the source tree and in various utilities that use the screen such as 
+.i systat(1) .
+.sh 2 "Screen Updating"
+.pp
+The following examples are intended to demonstrate
+the basic structure of a program
+using the screen updating sections of the package.
+Several of the programs require calculational sections
+which are irrelevant of to the example,
+and are therefore usually not included.
+It is hoped that the data structure definitions
+give enough of an idea to allow understanding
+of what the relevant portions do.
+.sh 3 "Simple Character Output"
+.pp
+This program demonstrates how to set up a window and output characters to it.
+Also, it demonstrates how one might control the output to the window.  If
+you run this program, you will get a demonstration of the character output
+chracteristics discussed in the above Character Output section.
+.(l I
+.so t2.gr
+.)l
+.sh 3 "A Small Screen Manipulator"
+.pp
+The next example follows the lines of the previous one but extends then to 
+demonstrate the various othe uses of the package.  Make sure you understand 
+how this program works as it encompasses most of anything you will
+need to do with the package.
+.(l I
+.so t3.gr
+.)l
+.sh 3 "Twinkle"
+.pp
+This is a moderately simple program which prints
+patterns on the screen.
+It switches between patterns of asterisks,
+putting them on one by one in random order,
+and then taking them off in the same fashion.
+It is more efficient to write this
+using only the motion optimization,
+as is demonstrated below.
+.(l I
+.so twinkle1.gr
+.)l
+.sh 3 "Life"
+.pp
+This program fragment models the famous computer pattern game of life
+(Scientific American, May, 1974).
+The calculational routines create a linked list of structures
+defining where each piece is.
+Nothing here claims to be optimal,
+merely demonstrative.
+This code, however,
+is a very good place to use the screen updating routines,
+as it allows them to worry about what the last position looked like,
+so you don't have to.
+It also demonstrates some of the input routines.
+.(l I
+.so life.gr
+.)l
+.sh 2 "Motion optimization"
+.pp
+The following example shows how motion optimization
+is written on its own.
+Programs which flit from one place to another without
+regard for what is already there
+usually do not need the overhead of both space and time
+associated with screen updating.
+They should instead use motion optimization.
+.sh 3 "Twinkle"
+.pp
+The
+.b twinkle
+program
+is a good candidate for simple motion optimization.
+Here is how it could be written
+(only the routines that have been changed are shown):
+.(l
+.so twinkle2.gr
+.)l
diff --git a/lib/libcurses/PSD.doc/c_macros b/lib/libcurses/PSD.doc/c_macros
new file mode 100644
index 0000000..ba6ebbc
--- /dev/null
+++ b/lib/libcurses/PSD.doc/c_macros
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)c_macros	8.1 (Berkeley) 6/4/93
+.\"
+'ie t 'ds _ \d\(mi\u
+'el 'ds _ _
+'tr *\(**
+'ps 9p
+'vs 10p
+'ds - \(mi
+'ds /* \\h'\\w' 'u-\\w'/'u'/*
+'bd B 3
+'bd S B 3
+'nr cm 0
+'nf
+'de ()
+'pn 1
+..
+'de +C
+'nr cm 1
+'ft 2
+'ds +K
+'ds -K
+..
+'de -C
+'nr cm 0
+'ft 1
+.ie t 'ds +K \f3
+.el 'ds +K \fI
+'ds -K \fP
+..
+'+C
+'-C
+'am +C
+'ne 3
+..
+'de -F
+'rm =f
+..
+'ft 1
+'lg 0
diff --git a/lib/libcurses/PSD.doc/doc.I b/lib/libcurses/PSD.doc/doc.I
new file mode 100644
index 0000000..2345aba
--- /dev/null
+++ b/lib/libcurses/PSD.doc/doc.I
@@ -0,0 +1,349 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)doc.I	8.1 (Berkeley) 6/4/93
+.\"
+.Ds
+.Fd addch ch \*m
+char	ch;
+.Fd waddch win\*,ch
+WINDOW	*win;
+char	ch;
+.De
+Add the character
+.Vn ch
+on the window
+at the current \*y.
+If the character is a newline
+(\'\en\')
+the line will be cleared to the end,
+and the current \*y will be changed to the
+beginning off the next line
+if newline mapping is on,
+or to the next line at the same x co-ordinate
+if it is off.
+A return
+(\'\er\')
+will move to the beginning of the line on the window.
+Tabs
+(\'\et\')
+will be expanded into spaces
+in the normal tabstop positions of
+every eight characters.
+\*(Es
+.Ds
+.Fd addstr str \*m
+char	*str;
+.Fd waddstr win\*,str
+WINDOW	*win;
+char	*str;
+.De
+Add the string pointed to by
+.Vn str
+on the window at the current \*y.
+\*(Es
+In this case, it will put on as much as it can.
+.Ds
+.Fd box win\*,vert\*,hor
+WINDOW	*win;
+char	vert\*,hor;
+.De
+.Pp
+Draws a box around the window using
+.Vn vert
+as the character for drawing the vertical sides, and
+.Vn hor
+for drawing the horizontal lines.
+If scrolling is not allowed,
+and the window encompasses the lower right-hand corner of the terminal,
+the corners are left blank to avoid a scroll.
+.Ds
+.Fd clear "" \*m
+.Fd wclear win
+WINDOW	*win;
+.De
+Resets the entire window to blanks.
+If
+.Vn win
+is a screen,
+this sets the clear flag,
+which will cause a clear-screen sequence to be sent
+on the next
+.Fn refresh
+call.
+This also moves the current \*y
+to (0\*,0).
+.Ds
+.Fd clearok scr\*,boolf \*m
+WINDOW	*scr;
+bool	boolf;
+.De
+Sets the clear flag for the screen
+.Vn scr .
+If
+.Vn boolf
+is TRUE,
+this will force a clear-screen to be printed on the next
+.Fn refresh ,
+or stop it from doing so if
+.Vn boolf
+is FALSE.
+This only works on screens,
+and,
+unlike
+.Fn clear ,
+does not alter the contents of the screen.
+If
+.Vn scr
+is
+.Vn curscr ,
+the next
+.Fn refresh
+call will cause a clear-screen,
+even if the window passed to
+.Fn refresh
+is not a screen.
+.Ds
+.Fd clrtobot "" \*m
+.Fd wclrtobot win
+WINDOW	*win;
+.De
+Wipes the window clear from the current \*y to the bottom.
+This does not force a clear-screen sequence on the next refresh
+under any circumstances.
+\*(Nm
+.Ds
+.Fd clrtoeol "" \*m
+.Fd wclrtoeol win
+WINDOW	*win;
+.De
+Wipes the window clear from the current \*y to the end of the line.
+\*(Nm
+.Ds
+.Fd delch
+.Fd wdelch win
+WINDOW	*win;
+.De
+Delete the character at the current \*y.
+Each character after it on the line shifts to the left,
+and the last character becomes blank.
+.Ds
+.Fd deleteln
+.Fd wdeleteln win
+WINDOW	*win;
+.De
+Delete the current line.
+Every line below the current one will move up,
+and the bottom line will become blank.
+The current \*y will remain unchanged.
+.Ds
+.Fd erase "" \*m
+.Fd werase win
+WINDOW	*win;
+.De
+Erases the window to blanks without setting the clear flag.
+This is analagous to
+.Fn clear ,
+except that it never causes a clear-screen sequence to be generated
+on a
+.Fn refresh .
+\*(Nm
+.Ds
+.Fd flushok win\*,boolf \*m
+WINDOW	*win;
+bool	boolf;
+.De
+Normally,
+.Fn refresh
+.Fn fflush 's
+.Vn stdout
+when it is finished.
+.Fn flushok
+allows you to control this.
+if
+.Vn boolf
+is TRUE
+(\c
+.i i.e. ,
+non-zero)
+it will do the
+.Fn fflush ;
+if it is FALSE.
+it will not.
+.Ds
+.Fd idlok win\*,boolf
+WINDOW	*win;
+bool	boolf;
+.De
+Reserved for future use.
+This will eventually signal to
+.Fn refresh
+that it is all right to use the insert and delete line sequences
+when updating the window.
+.Ds
+.Fd insch c
+char	c;
+.Fd winsch win\*,c
+WINDOW	*win;
+char	c;
+.De
+Insert
+.Vn c
+at the current \*y
+Each character after it shifts to the right,
+and the last character disappears.
+\*(Es
+.Ds
+.Fd insertln
+.Fd winsertln win
+WINDOW	*win;
+.De
+Insert a line above the current one.
+Every line below the current line
+will be shifted down,
+and the bottom line will disappear.
+The current line will become blank,
+and the current \*y will remain unchanged.
+.Ds
+.Fd move y\*,x \*m
+int	y\*,x;
+.Fd wmove win\*,y\*,x
+WINDOW	*win;
+int	y\*,x;
+.De
+Change the current \*y of the window to
+.Vn y\*,x ). (
+\*(Es
+.Ds
+.Fd overlay win1\*,win2
+WINDOW	*win1\*,*win2;
+.De
+Overlay
+.Vn win1
+on
+.Vn win2 .
+The contents of
+.Vn win1 ,
+insofar as they fit,
+are placed on
+.Vn win2
+at their starting \*y.
+This is done non-destructively,
+i.e., blanks on
+.Vn win1
+leave the contents of the space on
+.Vn win2
+untouched.
+.Ds
+.Fd overwrite win1\*,win2
+WINDOW	*win1\*,*win2;
+.De
+Overwrite
+.Vn win1
+on
+.Vn win2 .
+The contents of
+.Vn win1 ,
+insofar as they fit,
+are placed on
+.Vn win2
+at their starting \*y.
+This is done destructively,
+.i i.e. ,
+blanks on
+.Vn win1
+become blank on
+.Vn win2 .
+.Ds
+.Fd printw fmt\*,arg1\*,arg2\*,...
+char	*fmt;
+.Fd wprintw win\*,fmt\*,arg1\*,arg2\*,...
+WINDOW	*win;
+char	*fmt;
+.De
+Performs a
+.Fn printf
+on the window starting at the current \*y.
+It uses
+.Fn addstr
+to add the string on the window.
+It is often advisable to use the field width options of
+.Fn printf
+to avoid leaving things on the window from earlier calls.
+\*(Es
+.Ds
+.Fd refresh "" \*m
+.Fd wrefresh win
+WINDOW	*win;
+.De
+Synchronize the terminal screen with the desired window.
+If the window is not a screen,
+only that part covered by it is updated.
+\*(Es
+In this case, it will update whatever it can
+without causing the scroll.
+.sp
+As a special case,
+if
+.Fn wrefresh
+is called with the window
+.Vn curscr
+the screen is cleared
+and repainted as it is currently.
+This is very useful for allowing the redrawing of the screen
+when the user has garbage dumped on his terminal.
+.Ds
+.Fd standout "" \*m
+.Fd wstandout win
+WINDOW	*win;
+.Fd standend "" \*m
+.Fd wstandend win
+WINDOW	*win;
+.De
+Start and stop putting characters onto
+.i win
+in standout mode.
+.Fn standout
+causes any characters added to the window
+to be put in standout mode on the terminal
+(if it has that capability).
+.Fn standend
+stops this.
+The sequences
+.Vn SO
+and
+.Vn SE
+(or
+.Vn US
+and
+.Vn UE
+if they are not defined)
+are used (see Appendix A).
diff --git a/lib/libcurses/PSD.doc/doc.II b/lib/libcurses/PSD.doc/doc.II
new file mode 100644
index 0000000..1f68802
--- /dev/null
+++ b/lib/libcurses/PSD.doc/doc.II
@@ -0,0 +1,142 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)doc.II	8.1 (Berkeley) 6/4/93
+.\"
+.Ds
+.Fd cbreak "" \*m
+.Fd nocbreak "" \*m
+.Fd crmode "" \*m
+.Fd nocrmode "" \*m
+.De
+Set or unset the terminal to/from cbreak mode.
+The misnamed macros
+.Fn crmode
+and
+.Fn nocrmode
+are retained for backwards compatibility
+with ealier versions of the library.
+.Ds
+.Fd echo "" \*m
+.Fd noecho "" \*m
+.De
+Sets the terminal to echo or not echo characters.
+.Ds
+.Fd getch "" \*m
+.Fd wgetch win
+WINDOW	*win;
+.De
+Gets a character from the terminal and (if necessary)
+echos it on the window.
+\*(Es
+Otherwise, the character gotten is returned.
+If
+.i noecho
+has been set, then the window is left unaltered.
+In order to retain control of the terminal,
+it is necessary to have one of
+.i noecho ,
+.i cbreak ,
+or
+.i rawmode
+set.
+If you do not set one,
+whatever routine you call to read characters will set
+.i cbreak
+for you,
+and then reset to the original mode when finished.
+.Ds
+.Fd getstr str \*m
+char	*str;
+.Fd wgetstr win\*,str
+WINDOW	*win;
+char	*str;
+.De
+Get a string through the window
+and put it in the location pointed to by
+.Vn str ,
+which is assumed to be large enough to handle it.
+It sets tty modes if necessary,
+and then calls
+.Fn getch
+(or
+.Fn wgetch ) "" win
+to get the characters needed to fill in the string
+until a newline or EOF is encountered.
+The newline stripped off the string.
+\*(Es
+.Ds
+.Fd \*_putchar c
+char	c;
+.De
+Put out a character using the
+.Fn putchar
+macro.
+This function is used to output every character
+that
+.b curses
+generates.
+Thus,
+it can be redefined by the user who wants to do non-standard things
+with the output.
+It is named with an initial \*(lq\*_\*(rq
+because it usually should be invisible to the programmer.
+.Ds
+.Fd raw "" \*m
+.Fd noraw "" \*m
+.De
+Set or unset the terminal to/from raw mode.
+On version 7
+.Un \**
+.(f
+\**
+.Un
+is a trademark of Bell Laboratories.
+.)f
+this also turns of newline mapping
+(see
+.Fn nl ).
+.Ds
+.Fd scanw fmt\*,arg1\*,arg2\*,...
+char	*fmt;
+.Fd wscanw win\*,fmt\*,arg1\*,arg2\*,...
+WINDOW	*win;
+char	*fmt;
+.De
+Perform a
+.Fn scanf
+through the window using
+.Vn fmt .
+It does this using consecutive
+.Fn getch 's
+(or
+.Fn wgetch 's). "" win
+\*(Es
diff --git a/lib/libcurses/PSD.doc/doc.III b/lib/libcurses/PSD.doc/doc.III
new file mode 100644
index 0000000..7d710d4
--- /dev/null
+++ b/lib/libcurses/PSD.doc/doc.III
@@ -0,0 +1,343 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)doc.III	8.1 (Berkeley) 6/4/93
+.\"
+.Ds
+.Fd baudrate "" \*m
+.De
+Returns the output baud rate of the terminal.
+This is a system dependent constant
+(defined in
+.b <sys/tty.h>
+on BSD systems,
+which is included by
+.b <curses.h> ).
+.Ds
+.Fd delwin win
+WINDOW	*win;
+.De
+Deletes the window from existence.
+All resources are freed for future use by
+.b calloc (3).
+If a window has a
+.Fn subwin
+allocated window inside of it,
+deleting the outer window
+the subwindow is not affected,
+even though this does invalidate it.
+Therefore,
+subwindows should be deleted before their
+outer windows are.
+.Ds
+.Fd endwin
+.De
+Finish up window routines before exit.
+This restores the terminal to the state it was before
+.Fn initscr
+(or
+.Fn gettmode
+and
+.Fn setterm )
+was called.
+It should always be called before exiting.
+It does not exit.
+This is especially useful for resetting tty stats
+when trapping rubouts via
+.b signal (2).
+.Ds
+.Fd erasechar "" \*m
+.De
+Returns the erase character
+for the terminal,
+.i i.e. ,
+the character used by the user to erase a single character from the input.
+.Ds
+.Fd getcap str "" "char *"
+char	*str;
+.De
+Return a pointer to the
+.b termcap
+capability described by
+.Vn str
+(see
+.b termcap (5)
+for details).
+.Ds
+.Fd getyx win\*,y\*,x \*m
+WINDOW	*win;
+int	y\*,x;
+.De
+Puts the current \*y of
+.Vn win
+in the variables
+.Vn y
+and
+.Vn x .
+Since it is a macro,
+not a function,
+you do not pass the address
+of
+.Vn y
+and
+.Vn x .
+.Ds
+.Fd inch "" \*m
+.Fd winch win \*m
+WINDOW	*win;
+.De
+Returns the character at the current \*(y
+on the given window.
+This does not make any changes to the window.
+.Ds
+.Fd initscr
+.De
+Initialize the screen routines.
+This must be called before any of the screen routines are used.
+It initializes the terminal-type data and such,
+and without it none of the routines can operate.
+If standard input is not a tty,
+it sets the specifications to the terminal
+whose name is pointed to by
+.Vn Def\*_term
+(initialy "dumb").
+If the boolean
+.Vn My\*_term
+is true,
+.Vn Def\*_term
+is always used.
+If the system supports the
+.b TIOCGWINSZ
+.Fn ioctl "" "" 2
+call,
+it is used to get the number of lines and columns for the terminal,
+otherwise it is taken from the
+.b termcap
+description.
+.Ds
+.Fd killchar "" \*m
+.De
+Returns the line kill character
+for the terminal,
+.i i.e. ,
+the character used by the user to erase an entire line from the input.
+.Ds
+.Fd leaveok win\*,boolf \*m
+WINDOW	*win;
+bool	boolf;
+.De
+Sets the boolean flag for leaving the cursor after the last change.
+If
+.Vn boolf
+is TRUE,
+the cursor will be left after the last update on the terminal,
+and the current \*y for
+.Vn win
+will be changed accordingly.
+If it is FALSE,
+it will be moved to the current \*y.
+This flag
+(initialy FALSE)
+retains its value until changed by the user.
+.Ds
+.Fd longname termbuf\*,name
+char	*termbuf\*,*name;
+.Fd fullname termbuf\*,name
+char	*termbuf\*,*name;
+.De
+.Fn longname
+fills in
+.Vn name
+with the long name of the terminal described by the
+.b termcap
+entry in
+.Vn termbuf .
+It is generally of little use,
+but is nice for telling the user in a readable format what terminal
+we think he has.
+This is available in the global variable
+.Vn ttytype .
+.Vn termbuf
+is usually set via the termlib routine
+.Fn tgetent .
+.Fn fullname
+is the same as
+.Fn longname ,
+except that it gives the fullest name given in the entry,
+which can be quite verbose.
+.Ds
+.Fd mvwin win\*,y\*,x
+WINDOW	*win;
+int	y, x;
+.De
+Move the home position of the window
+.Vn win
+from its current starting coordinates
+to
+.Vn y\*,x ). (
+If that would put part or all of the window
+off the edge of the terminal screen,
+.Fn mvwin
+returns ERR and does not change anything.
+For subwindows,
+.Fn mvwin
+also returns ERR if you attempt to move it off its main window.
+If you move a main window,
+all subwindows are moved along with it.
+.Ds
+.Fd newwin lines\*,cols\*,begin\*_y\*,begin\*_x "" "WINDOW *"
+int	lines\*,cols\*,begin\*_y\*,begin\*_x;
+.De
+Create a new window with
+.Vn lines
+lines and
+.Vn cols
+columns starting at position
+.Vn begin\*_y\*,begin\*_x ). (
+If either
+.Vn lines
+or
+.Vn cols
+is 0 (zero),
+that dimension will be set to
+.Vn "LINES \- begin\*_y" ) (
+or
+.Vn "COLS \- begin\*_x" ) (
+respectively.
+Thus, to get a new window of dimensions
+.Vn LINES
+\(mu
+.Vn COLS ,
+use
+.Fn newwin . "" 0\*,0\*,0\*,0
+.Ds
+.Fd nl "" \*m
+.Fd nonl "" \*m
+.De
+Set or unset the terminal to/from nl mode,
+.i i.e. ,
+start/stop the system from mapping
+.b <RETURN>
+to
+.b <LINE-FEED> .
+If the mapping is not done,
+.Fn refresh
+can do more optimization,
+so it is recommended, but not required, to turn it off.
+.Ds
+.Fd scrollok win\*,boolf \*m
+WINDOW	*win;
+bool	boolf;
+.De
+Set the scroll flag for the given window.
+If
+.Vn boolf
+is FALSE, scrolling is not allowed.
+This is its default setting.
+.Ds
+.Fd touchline win\*,y\*,startx\*,endx
+WINDOW	*win;
+int	y\*,startx\*,endx;
+.De
+This function performs a function similar to
+.Fn touchwin
+on a single line.
+It marks the first change for the given line
+to be
+.Vn startx ,
+if it is before the current first change mark,
+and
+the last change mark is set to be
+.Vn endx
+if it is currently less than
+.Vn endx .
+.Ds
+.Fd touchoverlap win1\*,win2
+WINDOW	*win1, *win2;
+.De
+Touch the window
+.Vn win2
+in the area which overlaps with
+.Vn win1 .
+If they do not overlap,
+no changes are made.
+.Ds
+.Fd touchwin win
+WINDOW	*win;
+.De
+Make it appear that the every location on the window
+has been changed.
+This is usually only needed for refreshes with overlapping windows.
+.Ds
+.Fd subwin win\*,lines\*,cols\*,begin\*_y\*,begin\*_x "" "WINDOW *"
+WINDOW	*win;
+int	lines\*,cols\*,begin\*_y\*,begin\*_x;
+.De
+Create a new window with
+.Vn lines
+lines and
+.Vn cols
+columns starting at position
+.Vn begin\*_y\*,begin\*_x ) (
+inside the window
+.i win .
+This means that any change made to either window
+in the area covered
+by the subwindow will be made on both windows.
+.Vn begin\*_y\*,begin\*_x
+are specified relative to the overall screen,
+not the relative (0\*,0) of
+.Vn win .
+If either
+.Vn lines
+or
+.Vn cols
+is 0 (zero),
+that dimension will be set to
+.Vn "LINES \- begin\*_y" ) (
+or
+.Vn "COLS \- begin\*_x" ) (
+respectively.
+.Ds
+.Fd unctrl ch \*m
+char	ch;
+.De
+This is actually a debug function for the library,
+but it is of general usefulness.
+It returns a string which is a representation of
+.Vn ch .
+Control characters become their upper-case equivalents preceded by a "^".
+Other letters stay just as they are.
+To use
+.Fn unctrl ,
+you may have to have
+.b #include\ <unctrl.h>
+in your file.
diff --git a/lib/libcurses/PSD.doc/doc.IV b/lib/libcurses/PSD.doc/doc.IV
new file mode 100644
index 0000000..717a986
--- /dev/null
+++ b/lib/libcurses/PSD.doc/doc.IV
@@ -0,0 +1,110 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)doc.IV	8.1 (Berkeley) 6/4/93
+.\"
+.Ds
+.Fd gettmode
+.De
+Get the tty stats.
+This is normally called by
+.Fn initscr .
+.Ds
+.Fd mvcur lasty\*,lastx\*,newy\*,newx
+int	lasty\*,lastx\*,newy\*,newx;
+.De
+Moves the terminal's cursor from
+.Vn lasty\*,lastx ) (
+to
+.Vn newy\*,newx ) (
+in an approximation of optimal fashion.
+This routine uses the functions borrowed from
+.i ex
+version 2.6.
+It is possible to use this optimization
+without the benefit of the screen routines.
+With the screen routines, this should not be called by the user.
+.Fn move
+and
+.Fn refresh
+should be used to move the cursor position,
+so that the routines know what's going on.
+.Ds
+.Fd scroll win
+WINDOW	*win;
+.De
+Scroll the window upward one line.
+This is normally not used by the user.
+.Ds
+.Fd savetty "" \*m
+.Fd resetty "" \*m
+.De
+.Fn savetty
+saves the current tty characteristic flags.
+.Fn resetty
+restores them to what
+.Fn savetty
+stored.
+These functions are performed automatically by
+.Fn initscr
+and
+.Fn endwin .
+.Ds
+.Fd setterm name
+char	*name;
+.De
+Set the terminal characteristics to be those of the terminal named
+.Vn name ,
+getting the terminal size from the
+.b TIOCGWINSZ
+.Fn ioctl "" "" 2
+if it exists,
+otherwise from the environment.
+This is normally called by
+.Fn initscr .
+.Ds
+.Fd tstp
+.De
+If the new
+.b tty (4)
+driver is in use,
+this function
+will save the current tty state
+and then put the process to sleep.
+When the process gets restarted,
+it restores the tty state
+and then calls
+.Fn wrefresh "" "" curscr
+to redraw the screen.
+.Fn initscr
+sets the signal
+SIGTSTP
+to trap to this routine.
diff --git a/lib/libcurses/PSD.doc/ex1.c b/lib/libcurses/PSD.doc/ex1.c
new file mode 100644
index 0000000..02ed9b9
--- /dev/null
+++ b/lib/libcurses/PSD.doc/ex1.c
@@ -0,0 +1,102 @@
+.\" Copyright (c) 1992, 1993
+.\"	 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.
+.\"
+.\"     @(#)ex1.c	8.1 (Berkeley) 6/8/93
+.\"
+#include <sys/types.h>
+#include <curses.h>
+#include <stdio.h>
+#include <signal.h>
+
+
+#define YSIZE 10 
+#define XSIZE 20
+
+int quit();
+
+main()
+{
+	int i, j, c;
+	size_t len;
+	char id[100];
+	FILE *fp;
+	char *s;
+
+	initscr();			/* Always call initscr() first */
+	signal(SIGINT, quit);		/* Make sure wou have a 'cleanup' fn */
+	crmode();			/* We want cbreak mode */
+	noecho();			/* We want to have control of chars */
+	delwin(stdscr);			/* Create our own stdscr */
+	stdscr = newwin(YSIZE, XSIZE, 10, 35); 
+	flushok(stdscr, TRUE);		/* Enable flushing of stdout */
+	scrollok(stdscr, TRUE);		/* Enable scrolling */
+	erase();			/* Initially, clear the screen */
+
+	standout();
+	move(0,0);
+	while (1) {
+		c = getchar();
+		switch(c) {
+		case 'q':		/* Quit on 'q' */
+			quit();
+			break;
+		case 's':		/* Go into standout mode on 's' */
+			standout();
+			break;
+		case 'e':		/* Exit standout mode on 'e' */
+			standend();
+			break;
+		case 'r':		/* Force a refresh on 'r' */
+			wrefresh(curscr);
+			break;
+		default:		/* By default output the character */
+			addch(c);
+			refresh();
+		}
+	}
+}
+
+
+int
+quit()
+{
+	erase();		/* Terminate by erasing the screen */
+	refresh();
+	endwin();		/* Always end with endwin() */
+	delwin(curscr);		/* Return storage */
+	delwin(stdscr);
+	putchar('\n');
+	exit(0);
+}
+
+				
+	
+	
diff --git a/lib/libcurses/PSD.doc/ex2.c b/lib/libcurses/PSD.doc/ex2.c
new file mode 100644
index 0000000..13e8f29
--- /dev/null
+++ b/lib/libcurses/PSD.doc/ex2.c
@@ -0,0 +1,210 @@
+.\" Copyright (c) 1992, 1993
+.\"	 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.
+.\"
+.\"     @(#)ex2.c	8.1 (Berkeley) 6/8/93
+.\"
+#include <curses.h>
+#include <stdio.h>
+#include <signal.h>
+
+#define YSIZE LINES
+#define XSIZE COLS
+
+static int quit();
+
+/*
+ * This program fills the screen up with characters and the allows the user to
+ * manipulate the text on the screen using some basic commands.
+ * Nothing fancy, just a demonstration of the elementary features of the
+ * curses(3) package.
+ */
+main()
+{
+	int i, j, c, n, d = 0;
+	char id[100];
+	int hh = 0;
+	int curx, cury, base, arg;
+	
+	initscr();
+	signal(SIGINT, quit);
+	crmode();
+	noecho();
+	nonl();
+	delwin(stdscr);
+	stdscr = newwin(YSIZE, XSIZE, 0, 0);
+	flushok(stdscr, TRUE);
+	scrollok(stdscr, TRUE);
+	erase();
+	refresh();
+
+	move(0,0);
+	refresh();
+	for (i = 0; i < YSIZE + 2; i++) {
+		sprintf(id, "%d: ", i);
+		addstr(id);
+		for (j = 0; j < XSIZE - strlen(id); j++)
+			addch('0' + (i % 10));
+	}
+	c = getchar();
+	base = 2;
+	curx = cury = 0;
+	move(0, 0);
+	refresh();
+
+	/*
+	 * The screen manipulator has the following commands:
+	 * 'D' - clear to the end of the current line.
+	 * 'B' - clear to the bottom of the screen.
+	 * 'E' - erase the screen.
+	 * 's' - enter standout mode.
+	 * 'e' - exit standout mode.
+	 * 'd' n - delete n lines below cursor line.
+	 * 'i' n - insert n lines below cursor line.
+	 * 'q' - quit.
+	 * 'f' - move cursor one position to the right.
+	 * 'b' - move cursor one position to the left.
+	 * 'n' - move cursor one line down.
+	 * 'p' - move cursor one line up.
+	 * 'h' - home cusor.
+	 * 'l' - force refresh.
+	 * 'r' - simulate a carriage return.
+	 *
+	 * All other characters are ignored.
+	 */
+	for(;;) {
+		switch(c = getchar()) {
+		case 'D':
+			clrtoeol();
+			refresh();
+			continue;
+		case 'B':
+			clrtobot();
+			refresh();
+			continue;
+		case 'E':
+			erase();
+			refresh();
+			continue;
+		case 's':
+			standout();
+			continue;
+		case 'e':
+			standend();
+			continue;
+		case 'd':
+			arg = getchar() - '0';
+			for (i = 0; i < arg; i++)
+				deleteln();
+			refresh();
+			continue;
+		case 'i':
+			arg = getchar() - '0';
+			for (i = 0; i < arg; i++)
+				insertln();
+			refresh();
+			continue;
+		case 'q':
+			quit();
+		case 'f':
+			if (curx < XSIZE - 1)
+				curx++;
+			else {
+				cury++;
+				curx = 0;
+			}
+			break;
+		case 'b':
+			if (curx == 0) {
+				cury--;
+				curx = XSIZE - 1;
+			} else
+				curx--;
+			break;
+		case 'n':
+			cury++;
+			break;
+		case 'p':
+			cury--;
+			break;
+		case 'h':
+			curx = cury = 0;
+			break;
+		case 'l':
+			wrefresh(curscr);
+			continue;
+		case 'r':   /* return */
+		{
+			int x, y;
+			getyx(stdscr, y, x);
+			move(y+1, 0);
+			insertln();
+			move(y, x);
+			clrtoeol();
+			refresh();
+			continue;
+		}
+		default:
+			continue;
+		}
+
+		if (cury < 0) {
+			base--;
+			move(0, 0);
+			insertln();
+			sprintf(id, "%d: ", base);
+			addstr(id);
+			for (j = 0; j < XSIZE - strlen(id) - 2; j++) 
+				addch('0' + (base % 10));
+			cury++;
+		} else if (cury >= YSIZE) {
+			move(0, 0);
+			deleteln();
+			move(YSIZE - 1, 0);
+			sprintf(id, "%d: ", base + YSIZE);
+			addstr(id);
+			for (j = 0; j < XSIZE - strlen(id) - 2; j++)
+				addch('0' + ((base + YSIZE) % 10));
+			cury--;
+			base++;
+		}
+		move(cury, curx);
+		refresh();
+	}
+}
+
+int
+quit()
+{
+	erase();
+	refresh();
+	endwin();
+	exit(0);
+}
diff --git a/lib/libcurses/PSD.doc/fns.doc b/lib/libcurses/PSD.doc/fns.doc
new file mode 100644
index 0000000..30d5c4c
--- /dev/null
+++ b/lib/libcurses/PSD.doc/fns.doc
@@ -0,0 +1,795 @@
+.\" Copyright (c) 1992, 1993
+.\"	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.
+.\"
+.\"     @(#)fns.doc	8.1 (Berkeley) 6/4/93
+.\"
+.Ds
+.Fn addch "char ch" \(dg
+.De
+Add the character
+.Vn ch
+on the window
+at the current \*y.
+If the character is a newline
+(\'\en\')
+the line will be cleared to the end,
+and the current \*y will be changed to the
+beginning off the next line
+if newline mapping is on,
+or to the next line at the same x co-ordinate
+if it is off.
+A return
+(\'\er\')
+will move to the beginning of the line on the window.
+Tabs
+(\'\et\')
+will be expanded into spaces
+in the normal tabstop positions of
+every eight characters.
+\*(Es
+.Ds
+.Fn addstr "char *str" \(dg
+.De
+Add the string pointed to by
+.Vn str
+on the window at the current \*y.
+\*(Es
+In this case, it will put on as much as it can.
+.Ds
+.Fn baudrate "" \(dg
+.De
+Returns the output baud rate of the terminal.
+This is a system dependent constant
+(defined in
+.b <sys/tty.h>
+on BSD systems,
+which is included by
+.b <curses.h> ).
+.Ds
+.Fn box "WINDOW win" "char vert" "char hor"
+.De
+.Pp
+Draws a box around the window using
+.Vn vert
+as the character for drawing the vertical sides, and
+.Vn hor
+for drawing the horizontal lines.
+If scrolling is not allowed,
+and the window encompasses the lower right-hand corner of the terminal,
+the corners are left blank to avoid a scroll.
+.Ds
+.Fn cbreak "" \(dg
+.De
+Set or the terminal to cbreak mode.
+.Ds
+.Fn clear "" \(dg
+.De
+Resets the entire window to blanks.
+If
+.Vn win
+is a screen,
+this sets the clear flag,
+which will cause a clear-screen sequence to be sent
+on the next
+.Fn refresh
+call.
+This also moves the current \*y
+to (0\*,0).
+.Ds
+.Fn clearok "WINDOW *scr" "int boolf" \(dg
+.De
+Sets the clear flag for the screen
+.Vn scr .
+If
+.Vn boolf
+is non-zero,
+this will force a clear-screen to be printed on the next
+.Fn refresh ,
+or stop it from doing so if
+.Vn boolf
+is 0.
+This only works on screens,
+and,
+unlike
+.Fn clear ,
+does not alter the contents of the screen.
+If
+.Vn scr
+is
+.Vn curscr ,
+the next
+.Fn refresh
+call will cause a clear-screen,
+even if the window passed to
+.Fn refresh
+is not a screen.
+.Ds
+.Fn clrtobot "" \(dg
+.De
+Wipes the window clear from the current \*y to the bottom.
+This does not force a clear-screen sequence on the next refresh
+under any circumstances.
+\*(Nm
+.Ds
+.Fn clrtoeol "" \(dg
+.De
+Wipes the window clear from the current \*y to the end of the line.
+\*(Nm
+.Ds
+.Fn crmode "" \(dg
+.De
+Identical to 
+.Fn cbreak .
+The misnamed macro
+.Fn crmode
+and
+.Fn nocrmode
+is retained for backwards compatibility
+with ealier versions of the library.
+.Ds
+.Fn delch ""
+.De
+Delete the character at the current \*y.
+Each character after it on the line shifts to the left,
+and the last character becomes blank.
+.Ds
+.Fn deleteln ""
+.De
+Delete the current line.
+Every line below the current one will move up,
+and the bottom line will become blank.
+The current \*y will remain unchanged.
+.Ds
+.Fn delwin "WINDOW *win"
+.De
+Deletes the window from existence.
+All resources are freed for future use by
+.b calloc (3).
+If a window has a
+.Fn subwin
+allocated window inside of it,
+deleting the outer window
+the subwindow is not affected,
+even though this does invalidate it.
+Therefore,
+subwindows should be deleted before their
+outer windows are.
+.Ds
+.Fn echo "" \(dg
+.De
+Sets the terminal to echo characters.
+.Ds
+.Fn endwin ""
+.De
+Finish up window routines before exit.
+This restores the terminal to the state it was before
+.Fn initscr
+(or
+.Fn gettmode
+and
+.Fn setterm )
+was called.
+It should always be called before exiting and before the final calls to 
+.Fn delwin .
+It does not exit.
+This is especially useful for resetting tty stats
+when trapping rubouts via
+.b signal (2).
+.Ds
+.Fn erase "" \(dg
+.De
+Erases the window to blanks without setting the clear flag.
+This is analagous to
+.Fn clear ,
+except that it never causes a clear-screen sequence to be generated
+on a
+.Fn refresh .
+\*(Nm
+.Ds
+.Fn erasechar "" \(dg
+.De
+Returns the erase character
+for the terminal,
+.i i.e. ,
+the character used by the user to erase a single character from the input.
+.Ds
+.Fn flushok "WINDOW *win" "int boolf"
+.De
+Normally,
+.Fn refresh
+.Fn fflush 's
+.Vn stdout
+when it is finished.
+.Fn flushok
+allows you to control this.
+if
+.Vn boolf
+is non-zero
+(\c
+.i i.e. ,
+non-zero)
+it will do the
+.Fn fflush ,
+otherwise it will not.
+.Ds
+.Fn getch "" \(dg
+.De
+Gets a character from the terminal and (if necessary)
+echos it on the window.
+\*(Es
+Otherwise, the character gotten is returned.
+If
+.i noecho
+has been set, then the window is left unaltered.
+In order to retain control of the terminal,
+it is necessary to have one of
+.i noecho ,
+.i cbreak ,
+or
+.i rawmode
+set.
+If you do not set one,
+whatever routine you call to read characters will set
+.i cbreak
+for you,
+and then reset to the original mode when finished.
+.Ds
+.Fn getstr "char *str" \(dg
+.De
+Get a string through the window
+and put it in the location pointed to by
+.Vn str ,
+which is assumed to be large enough to handle it.
+It sets tty modes if necessary,
+and then calls
+.Fn getch
+(or
+.Fn wgetch )
+to get the characters needed to fill in the string
+until a newline or EOF is encountered.
+The newline stripped off the string.
+\*(Es
+.Ds
+.Fn gettmode ""
+.De
+Get the tty stats.
+This is normally called by
+.Fn initscr .
+.Ds
+.Fn getyx "WINDOW *win" "int y" "int x"
+.De
+Puts the current \*y of
+.Vn win
+in the variables
+.Vn y
+and
+.Vn x .
+Since it is a macro,
+not a function,
+you do not pass the address
+of
+.Vn y
+and
+.Vn x .
+.Ds
+.Fn idlok "WINDOW *win" "int boolf"
+.De
+Reserved for future use.
+This will eventually signal to
+.Fn refresh
+that it is all right to use the insert and delete line sequences
+when updating the window.
+.Ds
+.Fn inch "" \(dg
+.De
+Returns the character at the current position on the given window.
+This does not make any changes to the window.
+.Ds
+.Fn initscr ""
+.De
+Initialize the screen routines.
+This must be called before any of the screen routines are used.
+It initializes the terminal-type data and such,
+and without it none of the routines can operate.
+If standard input is not a tty,
+it sets the specifications to the terminal
+whose name is pointed to by
+.Vn Def\*_term
+(initially "dumb").
+If the boolean
+.Vn My\*_term
+is non-zero,
+.Vn Def\*_term
+is always used.
+If the system supports the
+.b TIOCGWINSZ
+.i ioctl(2)
+call,
+it is used to get the number of lines and columns for the terminal,
+otherwise it is taken from the
+.b termcap
+description.
+.Ds
+.Fn insch "char c"
+.De
+Insert
+.Vn c
+at the current \*y
+Each character after it shifts to the right,
+and the last character disappears.
+\*(Es
+.Ds
+.Fn insertln ""
+.De
+Insert a line above the current one.
+Every line below the current line
+will be shifted down,
+and the bottom line will disappear.
+The current line will become blank,
+and the current \*y will remain unchanged.
+.Ds
+.Fn killchar "" \(dg
+.De
+Returns the line kill character
+for the terminal,
+.i i.e. ,
+the character used by the user to erase an entire line from the input.
+.Ds
+.Fn leaveok "WINDOW *win" "int boolf" \(dg
+.De
+Sets the boolean flag for leaving the cursor after the last change.
+If
+.Vn boolf
+is non-zero,
+the cursor will be left after the last update on the terminal,
+and the current \*y for
+.Vn win
+will be changed accordingly.
+If 
+.Vn boolf
+ is 0 the cursor will be moved to the current \*y.
+This flag
+(initially 0)
+retains its value until changed by the user.
+.Ds
+.Fn move "int y" "int x"
+.De
+Change the current \*y of the window to
+.Vn y\*,x ). (
+\*(Es
+.Ds
+.Fn mvcur "int lasty" "int lastx" "int newy" "int newx"
+.De
+Moves the terminal's cursor from
+.Vn lasty\*,lastx ) (
+to
+.Vn newy\*,newx ) (
+in an approximation of optimal fashion.
+This routine uses the functions borrowed from
+.i ex
+version 2.6.
+It is possible to use this optimization
+without the benefit of the screen routines.
+With the screen routines, this should not be called by the user.
+.Fn move
+and
+.Fn refresh
+should be used to move the cursor position,
+so that the routines know what's going on.
+.Ds
+.Fn mvprintw "int y" "int x" "const char *fmt" "..."
+.De
+Equivalent to:
+.(l
+move(y, x);
+printw(fmt, ...);
+.)l
+.Ds 
+.Fn mvscanw "int y" "int x" "const char *fmt" "..."
+.De
+Equivalent to:
+.(l
+move(y, x);
+scanw(fmt, ...);
+.)l
+.Ds
+.Fn mvwin "WINDOW *win" "int y" "int x"
+.De
+Move the home position of the window
+.Vn win
+from its current starting coordinates
+to
+.Vn y\*,x ). (
+If that would put part or all of the window
+off the edge of the terminal screen,
+.Fn mvwin
+returns ERR and does not change anything.
+For subwindows,
+.Fn mvwin
+also returns ERR if you attempt to move it off its main window.
+If you move a main window,
+all subwindows are moved along with it.
+.Ds
+.Fn mvwprintw "WINDOW *win" "int y" "int x" "const char *fmt" "..."
+.De
+Equivalent to:
+.(l
+wmove(win, y, x);
+printw(fmt, ...);
+.)l
+.Ds
+.Fn mvwscanw "WINDOW *win" "int y" "int x" "const char *fmt" "..."
+.De
+Equivalent to:
+.(l
+wmove(win, y, x);
+scanw(fmt, ...);
+.)l
+.Ds
+.Ft "WINDOW *"
+.Fn newwin "int lines" "int cols" "int begin_y" "int begin_x" 
+.De
+Create a new window with
+.Vn lines
+lines and
+.Vn cols
+columns starting at position
+.Vn begin\*_y\*,begin\*_x ). (
+If either
+.Vn lines
+or
+.Vn cols
+is 0 (zero),
+that dimension will be set to
+.Vn "LINES \- begin\*_y" ) (
+or
+.Vn "COLS \- begin\*_x" ) (
+respectively.
+Thus, to get a new window of dimensions
+.Vn LINES
+\(mu
+.Vn COLS ,
+use
+.Fn newwin 0 0 0 0 .
+.Ds
+.Fn nl "" \(dg
+.De
+Set the terminal to nl mode,
+.i i.e. ,
+start/stop the system from mapping
+.b <RETURN>
+to
+.b <LINE-FEED> .
+If the mapping is not done,
+.Fn refresh
+can do more optimization,
+so it is recommended, but not required, to turn it off.
+.Ds
+.Fn nocbreak "" \(dg
+.De
+Unset the terminal from cbreak mode.
+.Ds
+.Fn nocrmode "" \(dg
+.De
+Identical to
+.Fn nocbreak .
+The misnamed macro
+.Fn nocrmode
+is retained for backwards compatibility
+with ealier versions of the library.
+.Ds
+.Fn noecho "" \(dg
+.De
+Turn echoing of characters off.
+.Ds
+.Fn nonl "" \(dg
+.De
+Unset the terminal to from nl mode.  See 
+.Fn nl .
+.Ds
+.Fn noraw "" \(dg
+.De
+Unset the terminal from raw mode.  See 
+.Fn raw .
+.Ds
+.Fn overlay "WINDOW *win1" "WINDOW *win2"
+.De
+Overlay
+.Vn win1
+on
+.Vn win2 .
+The contents of
+.Vn win1 ,
+insofar as they fit,
+are placed on
+.Vn win2
+at their starting \*y.
+This is done non-destructively,
+i.e., blanks on
+.Vn win1
+leave the contents of the space on
+.Vn win2
+untouched.  Note that all non-blank characters are overwritten 
+destructively in the overlay.
+.Ds
+.Fn overwrite "WINDOW *win1" "WINDOW *win2"
+.De
+Overwrite
+.Vn win1
+on
+.Vn win2 .
+The contents of
+.Vn win1 ,
+insofar as they fit,
+are placed on
+.Vn win2
+at their starting \*y.
+This is done destructively,
+.i i.e. ,
+blanks on
+.Vn win1
+become blank on
+.Vn win2 .
+.Ds
+.Fn printw "char *fmt" "..."
+.De
+Performs a
+.Fn printf
+on the window starting at the current \*y.
+It uses
+.Fn addstr
+to add the string on the window.
+It is often advisable to use the field width options of
+.Fn printf
+to avoid leaving things on the window from earlier calls.
+\*(Es
+.Ds
+.Fn raw "" \(dg
+.De
+Set the terminal to raw mode.
+On version 7
+.Un \**
+.(f
+\**
+.Un
+is a trademark of Unix System Laboratories.
+.)f
+this also turns off newline mapping
+(see
+.Fn nl ).
+.Ds
+.Fn refresh "" \(dg
+.De
+Synchronize the terminal screen with the desired window.
+If the window is not a screen,
+only that part covered by it is updated.
+\*(Es
+In this case, it will update whatever it can
+without causing the scroll.
+.sp
+As a special case,
+if
+.Fn wrefresh
+is called with the window
+.Vn curscr
+the screen is cleared
+and repainted as it is currently.
+This is very useful for allowing the redrawing of the screen
+when the user has garbage dumped on his terminal.
+.Ds
+.Fn resetty "" \(dg
+.De
+.Fn resetty
+restores them to what
+.Fn savetty
+stored.
+These functions are performed automatically by
+.Fn initscr
+and
+.Fn endwin .  
+This function should not be used by the user.
+.Ds
+.Fn savetty "" \(dg
+.De
+.Fn savetty
+saves the current tty characteristic flags. See
+.Fn resetty .
+This function should not be used by the user.
+.Ds
+.Fn scanw "char *fmt" "..."
+.De
+Perform a
+.Fn scanf
+through the window using
+.Vn fmt .
+It does this using consecutive calls to 
+.Fn getch
+(or
+.Fn wgetch ).
+\*(Es
+.Ds
+.Fn scroll "WINDOW *win"
+.De
+Scroll the window upward one line.
+This is normally not used by the user.
+.Ds
+.Fn scrollok "WINDOW *win" "int boolf" \(dg
+.De
+Set the scroll flag for the given window.
+If
+.Vn boolf
+is 0, scrolling is not allowed.
+This is its default setting.
+.Ds
+.Fn standend "" \(dg
+.De
+End standout mode initiated by
+.Fn standout .
+.Ds
+.Fn standout "" \(dg
+.De
+Causes any characters added to the window
+to be put in standout mode on the terminal
+(if it has that capability).
+.Ds
+.Ft "WINDOW *"
+.Fn subwin "WINDOW *win" "int lines" "int cols" "int begin_y" "int begin_x"
+.De
+Create a new window with
+.Vn lines
+lines and
+.Vn cols
+columns starting at position
+.Vn begin\*_y\*,begin\*_x ) (
+inside the window
+.i win .
+This means that any change made to either window
+in the area covered
+by the subwindow will be made on both windows.
+.Vn begin\*_y\*,begin\*_x
+are specified relative to the overall screen,
+not the relative (0\*,0) of
+.Vn win .
+If either
+.Vn lines
+or
+.Vn cols
+is 0 (zero),
+that dimension will be set to
+.Vn "LINES \- begin\*_y" ) (
+or
+.Vn "COLS \- begin\*_x" ) (
+respectively.
+.Ds
+.Fn touchline "WINDOW *win" "int y" "int startx" "int endx"
+.De
+This function performs a function similar to
+.Fn touchwin
+on a single line.
+It marks the first change for the given line
+to be
+.Vn startx ,
+if it is before the current first change mark,
+and
+the last change mark is set to be
+.Vn endx
+if it is currently less than
+.Vn endx .
+.Ds
+.Fn touchoverlap "WINDOW *win1" "WINDOW *win2"
+.De
+Touch the window
+.Vn win2
+in the area which overlaps with
+.Vn win1 .
+If they do not overlap,
+no changes are made.
+.Ds
+.Fn touchwin "WINDOW *win"
+.De
+Make it appear that the every location on the window
+has been changed.
+This is usually only needed for refreshes with overlapping windows.
+.Ds
+.Fn tstp
+.De
+This function
+will save the current tty state
+and then put the process to sleep.
+When the process gets restarted,
+it restores the saved tty state
+and then calls
+.Fn wrefresh "curscr"
+to redraw the screen.
+.Fn Initscr
+sets the signal
+SIGTSTP
+to trap to this routine.
+.Ds
+.Fn unctrl "char *ch" \(dg
+.De
+Returns a string which is an ASCII representation of
+.Vn ch .  
+Characters are 8 bits long.
+.Ds
+.Fn unctrllen "char *ch" \(dg
+.De
+Returns the length of the ASCII representation of 
+.Vn ch .
+.Ds
+.Fn vwprintw "WINDOW *win" "const char *fmt" "va_list ap"
+.De
+Identical to 
+.Fn printw 
+except that it takes both a window specification and a pointer to a variable
+length argument list.
+.Ds
+.Fn vwscanw "WINDOW *win" "const char *fmt" "va_list ap"
+.De
+Identical to 
+.Fn scanw
+except that it takes both a window specification and a pointer to a variable
+length argument list.
+.Ds
+.Fn waddbytes "WINDOW *win" "char *str" "int len"
+.De
+This function is the low level character output function.  
+.Vn Len
+characters of the string
+.Vn str
+are output to the current \*y position of the window specified by
+.Vn win.
+.sp 2
+.pp
+\fIThe following functions differ from the standard functions only in their 
+specification of a window, rather than the use of the default
+.Vn stdscr.\fP
+.Ds
+.Fn waddch "WINDOW *win" "char ch" 
+.Fn waddstr "WINDOW *win" "char *str" 
+.Fn wclear "WINDOW *win"  
+.Fn wclrtobot "WINDOW *win"  
+.Fn wclrtoeol "WINDOW *win"  
+.Fn wdelch "WINDOW *win"  
+.Fn wdeleteln "WINDOW *win" 
+.Fn werase "WINDOW *win" 
+.Fn wgetch "WINDOW *win" 
+.Fn wgetstr "WINDOW *win" "char *str" 
+.Fn winch "WINDOW *win" \(dg
+.Fn winsch "WINDOW *win" "char c" 
+.Fn winsertln "WINDOW *win" 
+.Fn wmove "WINDOW *win" "int y" int x" 
+.Fn wprintw "WINDOW *win" "char *fmt" "..." 
+.Fn wrefresh "WINDOW *win" 
+.Fn wscanw "WINDOW *win" "char *fmt" "..." 
+.Fn wstandend "WINDOW *win" 
+.Fn wstandout "WINDOW *win"
+.Dg
diff --git a/lib/libcurses/PSD.doc/intro.0 b/lib/libcurses/PSD.doc/intro.0
new file mode 100644
index 0000000..c95b49d
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.0
@@ -0,0 +1,106 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.0	8.1 (Berkeley) 6/4/93
+.\"
+.tp
+.(l C
+.ps 12
+.ft B
+Screen Updating and Cursor Movement Optimization:
+.fl
+A Library Package
+.ft
+.ps
+.sp
+.i "Kenneth C. R. C. Arnold"
+.i "Elan Amir"
+.sp
+Computer Science Division
+Department of Electrical Engineering and Computer Science
+University of California, Berkeley
+Berkeley, California  94720
+.sp 3
+.bi ABSTRACT
+.sp 2
+.)l
+.(q
+.pp
+This document describes a package of C library functions
+which allow the user to:
+.ie t .ip \ \ \ \(bu
+.el .ip 1)
+update a screen with reasonable optimization,
+.ie t .ip \ \ \ \(bu
+.el .ip 2)
+get input from the terminal
+in a screen-oriented fashion,
+and
+.ie t .ip \ \ \ \(bu
+.el .ip 3)
+independent from the above, move the cursor optimally
+from one point to another.
+.pp
+These routines all use the
+\*(tc \*(db to describe the capabilities of the terminal.
+.)q
+.b Acknowledgements
+.pp
+This package would not exist
+without the work of Bill Joy,
+who,
+in writing his editor,
+created the capability to generally describe terminals,
+wrote the routines which read this \*(db,
+and, most importantly,
+those which implement optimal cursor movement,
+which routines I have simply lifted nearly intact.
+Doug Merritt and Kurt Shoens also were extremely important,
+as were both willing to waste time listening to me rant and rave.
+The help and/or support of
+Ken Abrams,
+Alan Char,
+Mark Horton,
+and
+Joe Kalash,
+was, and is,
+also greatly appreciated.
+.i "Ken Arnold    16 April 1986"
+.pp
+The help and/or support of Kirk McKusick and Keith Bostic (public vi!)
+was invaluable in bringing the package ``into the 90's'', which now 
+includes completely new data structures and screen refresh optimization 
+routines.
+.i "Elan Amir   29 December 1992"
+
+
+
+
diff --git a/lib/libcurses/PSD.doc/intro.1 b/lib/libcurses/PSD.doc/intro.1
new file mode 100644
index 0000000..a86d757
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.1
@@ -0,0 +1,249 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.1	8.1 (Berkeley) 6/4/93
+.\"
+.bp
+.sh 1 Overview
+.pp
+In making available the generalized terminal descriptions in \*(tc,
+much information was made available to the programmer,
+but little work was taken out of one's hands.
+The purpose of this package is to allow the C programmer
+to do the most common type of terminal dependent functions,
+those of movement optimization and optimal screen updating,
+without doing any of the dirty work,
+and with nearly as much ease as is necessary to simply print
+or read things.
+.sh 2 "Terminology"
+.pp
+In this document, the following terminology is used:
+.de Ip
+.sp
+.in 5n
+.ti 0n
+.b "\\$1" :
+..
+.Ip window
+An internal representation
+containing an image of what a section of the terminal screen may look like
+at some point in time.
+This subsection can either encompass the entire terminal screen,
+or any smaller portion down to a single character within that screen.
+.Ip terminal
+Sometimes called
+.b terminal
+.b screen .
+The package's idea of what the terminal's screen currently looks like,
+.i i.e. ,
+what the user sees now.
+This is a special
+.i screen :
+.Ip screen
+This is a subset of windows which are as large as the terminal screen,
+.i i.e. ,
+they start at the upper left hand corner
+and encompass the lower right hand corner.
+One of these,
+.Vn stdscr ,
+is automatically provided for the programmer.
+.rm Ip
+.sh 2 "Compiling Applications"
+.pp
+In order to use the library,
+it is necessary to have certain types and variables defined.
+Therefore, the programmer must have a line:
+.(l
+.b "#include <curses.h>"
+.)l
+at the top of the program source.
+Compilations should have the following form:
+.(l
+.ie t \fBcc\fR [ \fIflags\fR ] file ... \fB\-lcurses \-ltermcap\fR
+.el \fIcc\fR [ flags ] file ... \fI\-lcurses \-ltermcap\fR
+.)l
+.sh 2 "Screen Updating"
+.pp
+In order to update the screen optimally,
+it is necessary for the routines to know what the screen currently looks like
+and what the programmer wants it to look like next.
+For this purpose,
+a data type
+(structure)
+named
+.Vn WINDOW
+is defined
+which describes a window image to the routines,
+including its starting position on the screen
+(the \*y of the upper left hand corner)
+and its size.
+One of these
+(called
+.Vn curscr
+for
+.i "current screen" )
+is a screen image of what the terminal currently looks like.
+Another screen
+(called
+.Vn stdscr ,
+for
+.i "standard screen" )
+is provided
+by default
+to make changes on.
+.pp
+A window is a purely internal representation.
+It is used to build and store
+a potential image of a portion of the terminal.
+It doesn't bear any necessary relation
+to what is really on the terminal screen.
+It is more like an array of characters on which to make changes.
+.pp
+When one has a window which describes
+what some part the terminal should look like,
+the routine
+.Fn refresh
+(or
+.Fn wrefresh
+if the window is not
+.Vn stdscr )
+is called.
+.Fn Refresh
+makes the terminal,
+in the area covered by the window,
+look like that window.
+Note, therefore, that changing something on a window
+.i does
+.bi not
+.i "change the terminal" .
+Actual updates to the terminal screen
+are made only by calling
+.Fn refresh
+or
+.Fn wrefresh .
+This allows the programmer to maintain several different ideas
+of what a portion of the terminal screen should look like.
+Also, changes can be made to windows in any order,
+without regard to motion efficiency.
+Then, at will,
+the programmer can effectively say
+.q "make it look like this" ,
+and the package will execute the changes in an optimal way.
+.sh 2 "Naming Conventions"
+.pp
+As hinted above,
+the routines can use several windows,
+but two are always available:
+.Vn curscr ,
+which is the image of what the terminal looks like at present, 
+and
+.Vn stdscr ,
+which is the image of what the programmer wants the terminal to look like next.
+The user should not access
+.Vn curscr
+directly.
+Changes should be made to
+the appropriate screen,
+and then the routine
+.Fn refresh
+(or
+.Fn wrefresh )
+should be called.
+.pp
+Many functions are set up to deal with
+.Vn stdscr
+as a default screen.
+For example, to add a character to
+.Vn stdscr ,
+one calls
+.Fn addch
+with the desired character.
+If a different window is to be used,
+the routine
+.Fn waddch
+(for
+.b w indow-specific
+.Fn addch )
+is provided\**.
+.(f
+\**
+Actually,
+.Fn addch
+is really a
+.q #define
+macro with arguments,
+as are most of the "functions" which act upon
+.Vn stdscr .
+.)f
+This convention of prepending function names with a
+.Bq w
+when they are to be applied to specific windows
+is consistent.
+The only routines which do
+.i not
+do this are those
+to which a window must always be specified.
+.pp
+In order to move the current \*y from one point to another,
+the routines
+.Fn move
+and
+.Fn wmove
+are provided.
+However,
+it is often desirable to first move and then perform some I/O operation.
+In order to avoid clumsiness,
+most I/O routines can be preceded by the prefix
+.Bq mv
+and the desired \*y can then be added to the arguments to the function.
+For example,
+the calls
+.(l
+move(y\*,x);
+addch(ch);
+.)l
+can be replaced by
+.(l
+mvaddch(y\*,x\*,ch);
+.)l
+and
+.(l
+wmove(win\*,y\*,x);
+waddch(win\*,ch);
+.)l
+can be replaced by
+.(l
+mvwaddch(win\*,y\*,x\*,ch);
+.)l
+Note that the window description pointer
+.Vn win ) (
+comes before the added \*y.
+If a window pointer is needed, it is always the first parameter passed.
diff --git a/lib/libcurses/PSD.doc/intro.2 b/lib/libcurses/PSD.doc/intro.2
new file mode 100644
index 0000000..d98c0c7
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.2
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.2	8.1 (Berkeley) 6/4/93
+.\"
+.sh 1 Variables
+.pp
+Many variables which are used to describe the terminal environment
+are available to the programmer. They are:
+.(b
+.TS
+expand;
+lw(6m) lw(8n) lw(50n).
+type	name	description
+_
+WINDOW *	curscr	T{
+.fi
+current version of the screen (terminal screen).
+T}
+WINDOW *	stdscr	T{
+standard screen.  Most updates are usually done here.
+T}
+char *	Def\*_term	T{
+default terminal type if type cannot be determined
+T}
+bool	My\*_term	T{
+use the terminal specification in \fIDef\*_term\fR as terminal,
+irrelevant of real terminal type
+T}
+char *	ttytype	T{
+full name of the current terminal.
+T}
+int	LINES	T{
+number of lines on the terminal
+T}
+int	COLS	T{
+number of columns on the terminal
+T}
+int	ERR	T{
+error flag returned by routines on a fail.
+T}
+int	OK	T{
+flag returned by routines upon success.
+T}
+.TE
+.fi
+.ev
+.)b
+.lp
diff --git a/lib/libcurses/PSD.doc/intro.3 b/lib/libcurses/PSD.doc/intro.3
new file mode 100644
index 0000000..d0ba9a2
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.3
@@ -0,0 +1,228 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.3	8.1 (Berkeley) 6/4/93
+.\"
+.sh 1 Usage
+.pp
+This is a description of how to actually use the screen package.
+For simplicity, we assume all updating, reading, etc.
+is applied to
+.Vn stdscr , 
+although a different window can of course be specified.
+.sh 2 "Initialization"
+.pp
+In order to use the screen package,
+the routines must know about terminal characteristics,
+and the space for
+.Vn curscr
+and
+.Vn stdscr
+must be allocated.
+These functions are performed by
+.Fn initscr .
+Since it must allocate space for the windows,
+it can overflow core when attempting to do so.
+On this rather rare occasion,
+.Fn initscr
+returns ERR.
+.Fn Initscr
+must
+.bi always
+be called before any of the routines which affect windows are used.
+If it is not,
+the program will core dump as soon as either
+.Vn curscr
+or
+.Vn stdscr
+are referenced.
+However, it is usually best to wait to call it
+until after you are sure you will need it,
+like after checking for startup errors.
+Terminal status changing routines
+like
+.Fn nl
+and
+.Fn cbreak
+should be called after
+.Fn initscr .
+.pp
+After the initial window allocation done by 
+.Fn initscr ,
+specific window characteristics can be set.
+Scrolling can be enabled by calling
+.Fn scrollok .
+If you want the cursor to be left after the last change, use
+.Fn leaveok .
+If this isn't done,
+.Fn refresh
+will move the cursor to the window's current \*y after updating it.
+Additional windows can be created by using the functions
+.Fn newwin
+and
+.Fn subwin .
+.Fn Delwin
+allows you to delete an exisiting window.
+The variables
+.Vn LINES
+and
+.Vn COLS
+control the size of the terminal.  They are initially implicitly set by 
+.Fn initscr ,
+but can be altered explicitly by the user followed by a call to 
+.Fn initscr .
+Note that any call to 
+.Fn initscr ,
+will always delete any existing
+.Vn stdscr
+and/or
+.Vn curscr
+before creating new ones so this change is best done before the initial call to
+.Fn initscr .
+.pp
+.sh 2 "Output"
+.pp
+The basic functions
+used to change what will go on a window are
+.Fn addch
+and
+.Fn move .
+.Fn Addch
+adds a character at the current \*y,
+returning ERR if it would cause the window to illegally scroll,
+.i i.e. ,
+printing a character in the lower right-hand corner
+of a terminal which automatically scrolls
+if scrolling is not allowed.
+.Fn Move
+changes the current \*y to whatever you want them to be.
+It returns ERR if you try to move off the window.
+As mentioned above, you can combine the two into
+.Fn mvaddch
+to do both things in one call.
+.pp
+The other output functions 
+(such as
+.Fn addstr
+and
+.Fn printw )
+all call
+.Fn addch
+to add characters to the window.
+.pp
+After a change has been made to the window,
+you must call 
+.Fn refresh .
+when you want the portion of the terminal covered by the window
+to reflect the change.
+In order to optimize finding changes,
+.Fn refresh
+assumes that any part of the window not changed
+since the last
+.Fn refresh
+of that window has not been changed on the terminal,
+.i i.e. ,
+that you have not refreshed a portion of the terminal
+with an overlapping window.
+If this is not the case,
+the routines
+.Fn touchwin ,
+.Fn touchline ,
+and
+.Fn touchoverlap
+are provided to make it look like a desired part of window has been changed,
+thus forcing
+.Fn refresh
+to check that whole subsection of the terminal for changes.
+.pp
+If you call
+.Fn wrefresh
+with
+.Vn curscr ,
+it will make the screen look like the image of 
+.Vn curscr .
+This is useful for implementing a command
+which would redraw the screen in case it got messed up.
+.sh 2 Input
+.pp
+Input is essentially a mirror image of output.
+The complementary function to
+.Fn addch
+is
+.Fn getch
+which,
+if echo is set,
+will call
+.Fn addch
+to echo the character.
+Since the screen package needs to know what is on the terminal at all times,
+if characters are to be echoed,
+the tty must be in raw or cbreak mode.
+If it is not,
+.Fn getch
+sets it to be cbreak,
+and then reads in the character.
+.sh 2 "Termination"
+.pp
+In order to perform certain optimizations,
+and, 
+on some terminals,
+to work at all,
+some things must be done
+before the screen routines start up.
+These functions are performed in
+.Fn getttmode
+and
+.Fn setterm ,
+which are called by
+.Fn initscr .
+In order to clean up after the routines,
+the routine
+.Fn endwin
+is provided.
+It restores tty modes to what they were
+when
+.Fn initscr
+was first called.
+The terminal state module uses the variable 
+.Vn curses_termios
+to save the original terminal state which is then restored upon a call to 
+.Fn endwin .
+Thus,
+anytime after the call to initscr,
+.Fn endwin
+should be called before exiting.  Note however, that 
+.Fn endwin 
+should always be called 
+.b before
+the final calls to
+.Fn delwin ,
+which free the storage of the windows.
diff --git a/lib/libcurses/PSD.doc/intro.4 b/lib/libcurses/PSD.doc/intro.4
new file mode 100644
index 0000000..9e52982
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.4
@@ -0,0 +1,69 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.4	8.1 (Berkeley) 6/4/93
+.\"
+.sh 1 "Cursor Movement Optimizations"
+.pp
+One of the most difficult things to do properly is motion optimization.
+After using
+.Fn gettmode
+and
+.Fn setterm
+to get the terminal descriptions,
+the function
+.Fn mvcur
+deals with this task.
+It usage is simple:
+simply tell it where you are now and where you want to go.
+For example
+.(l
+mvcur(0\*,0\*,LINES/2\*,COLS/2);
+.)l
+.lp
+would move the cursor from the home position (0\*,0)
+to the middle of the screen.
+If you wish to force absolute addressing,
+you can use the function
+.Fn tgoto
+from the
+.b termlib (7)
+routines,
+or you can tell
+.Fn mvcur
+that you are impossibly far away,
+For example,
+to absolutely address the lower left hand corner of the screen
+from anywhere
+just claim that you are in the upper right hand corner:
+.(l
+mvcur(0\*,COLS\-1\*,LINES\-1\*,0);
+.)l
diff --git a/lib/libcurses/PSD.doc/intro.5 b/lib/libcurses/PSD.doc/intro.5
new file mode 100644
index 0000000..d0f9657
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.5
@@ -0,0 +1,87 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.5	8.1 (Berkeley) 6/4/93
+.\"
+.sh 1 "Character Output and Scrolling"
+.pp
+The character output policy deals with the following problems.  First,
+where is the location of the cursor after a character is printed, and 
+secondly, when does the screen scroll if scrolling is enabled.
+.pp
+In the normal case the characters are output as expected, with the cursor 
+occupying the position of the next character to be output.  However, when the
+cursor is on the last column of the line, the cursor will remain on that 
+position after the last character on the line is output and will only assume
+the position on the next line when the next character (the first on the next
+line) is output.
+.pp
+Likewise, if scrolling is enabled, a scroll will be invoked only when the
+first character on he first line past the bottom line of the window is
+output.  If scrolling is not enabled the chracters will to be output to the
+bottom right corner of the window which is the cursor location.
+.pp
+This policy allows consistent behavior of the cursor at the boundary 
+conditions.  Furthermore, it prevents a scroll from happening before it is
+actually needed (the old package used to scroll when the bottom right position
+was output a character).  As a precendent, it models the 
+.i xterm
+character output conventions.
+.sh 1 "Terminal State Handling"
+.pp
+The variable
+.Vn curses_termios
+contains the terminal state of the terminal.  Certain historical routines 
+return information:
+.Fn baudrate , 
+.Fn erasechar ,
+.Fn killchar ,
+and 
+.Fn ospeed .
+These routines are obsolete and exist only for backward compatibility.  If
+you wish to use the information in the 
+.Vn curses_termios
+structure, you should use the
+\fItsetattr\fP(3) 
+routines.
+.sh 1 "Subwindows"
+.pp
+Subwindows are windows which do not have an independent text structure, 
+.i i.e. , 
+they are windows whose text is a subset of the text of a larger window: the
+.i parent 
+window.  One consequence of this is that changes to either the parent or the
+child window are destructive to the other, 
+.i i.e. , 
+a change to the subwindow is also a change to the parent window and a change 
+to the parent window in the region defined by the subwindow is implicitly a 
+change to the subwindow as well.
+Apart from this detail, subwindows function like any other window.
diff --git a/lib/libcurses/PSD.doc/intro.6 b/lib/libcurses/PSD.doc/intro.6
new file mode 100644
index 0000000..7c4560d
--- /dev/null
+++ b/lib/libcurses/PSD.doc/intro.6
@@ -0,0 +1,44 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)intro.6	8.1 (Berkeley) 6/4/93
+.\"
+.sh 1 "The Functions"
+.pp
+In the following definitions,
+.q \*m
+means that the
+.q function
+is really a
+.q #define
+macro with arguments.
+.ta 11m 17m 25m 33m 41m 49m 57m 65m 73m
+.so fns.doc
diff --git a/lib/libcurses/PSD.doc/life.c b/lib/libcurses/PSD.doc/life.c
new file mode 100644
index 0000000..72febba
--- /dev/null
+++ b/lib/libcurses/PSD.doc/life.c
@@ -0,0 +1,163 @@
+.\" Copyright (c) 1980, 1993
+.\"	 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.
+.\"
+.\"	@(#)life.c	8.1 (Berkeley) 6/8/93
+.\"
+# include	<curses.h>
+# include	<signal.h>
+
+/*
+ *	Run a life game.  This is a demonstration program for
+ * the Screen Updating section of the -lcurses cursor package.
+ */
+
+typedef struct lst_st {			/* linked list element */
+	int		y, x;		/* (y, x) position of piece */
+	struct lst_st	*next, *last;	/* doubly linked */
+} LIST;
+
+LIST	*Head;			/* head of linked list */
+
+int	die();
+
+main(ac, av)
+int	ac;
+char	*av[];
+{
+	evalargs(ac, av);		/* evaluate arguments */
+
+	initscr();			/* initialize screen package */
+	signal(SIGINT, die);		/* set to restore tty stats */
+	cbreak();			/* set for char-by-char */
+	noecho();			/*	input */
+	nonl();				/* for optimization */
+
+	getstart();			/* get starting position */
+	for (;;) {
+		prboard();		/* print out current board */
+		update();		/* update board position */
+	}
+}
+
+/*
+ * This is the routine which is called when rubout is hit.
+ * It resets the tty stats to their original values.  This
+ * is the normal way of leaving the program.
+ */
+die()
+{
+	signal(SIGINT, SIG_IGN);		/* ignore rubouts */
+	mvcur(0, COLS - 1, LINES - 1, 0);	/* go to bottom of screen */
+	endwin();				/* set terminal to good state */
+	exit(0);
+}
+
+/*
+ * Get the starting position from the user.  They keys u, i, o, j, l,
+ * m, ,, and . are used for moving their relative directions from the
+ * k key.  Thus, u move diagonally up to the left, , moves directly down,
+ * etc.  x places a piece at the current position, " " takes it away.
+ * The input can also be from a file.  The list is built after the
+ * board setup is ready.
+ */
+getstart()
+{
+	reg char	c;
+	reg int		x, y;
+	auto char	buf[100];
+
+	box(stdscr, '|', '_');		/* box in the screen */
+	move(1, 1);			/* move to upper left corner */
+
+	for (;;) {
+		refresh();		/* print current position */
+		if ((c = getch()) == 'q')
+			break;
+		switch (c) {
+		  case 'u':
+		  case 'i':
+		  case 'o':
+		  case 'j':
+		  case 'l':
+		  case 'm':
+		  case ',':
+		  case '.':
+			adjustyx(c);
+			break;
+		  case 'f':
+			mvaddstr(0, 0, "File name: ");
+			getstr(buf);
+			readfile(buf);
+			break;
+		  case 'x':
+			addch('X');
+			break;
+		  case ' ':
+			addch(' ');
+			break;
+		}
+	}
+
+	if (Head != NULL)			/* start new list */
+		dellist(Head);
+	Head = malloc(sizeof (LIST)); 
+
+	/*
+	 * loop through the screen looking for 'x's, and add a list
+	 * element for each one
+	 */
+	for (y = 1; y < LINES - 1; y++)
+		for (x = 1; x < COLS - 1; x++) {
+			move(y, x);
+			if (inch() == 'x')
+				addlist(y, x);
+		}
+}
+
+/*
+ * Print out the current board position from the linked list
+ */
+prboard() {
+
+	reg LIST	*hp;
+
+	erase();			/* clear out last position */
+	box(stdscr, '|', '_');		/* box in the screen */
+
+	/*
+	 * go through the list adding each piece to the newly
+	 * blank board
+	 */
+	for (hp = Head; hp; hp = hp->next)
+		mvaddch(hp->y, hp->x, 'X');
+
+	refresh();
+}
diff --git a/lib/libcurses/PSD.doc/macros b/lib/libcurses/PSD.doc/macros
new file mode 100644
index 0000000..b7f3abf
--- /dev/null
+++ b/lib/libcurses/PSD.doc/macros
@@ -0,0 +1,144 @@
+.\" Copyright (c) 1980, 1993
+.\"	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.
+.\"
+.\"	@(#)macros	8.1 (Berkeley) 8/14/93
+.\"
+.\" this is the uncommented version.  The commented one is in "macros.coms"
+.ie t .ds _ \d\(mi\u
+.el .ds _ _
+.ds , ,\ 
+.ds y (y\*,x) co-ordinates
+.ds db database
+.ie n .ds f \fI
+.el .ds f \fB
+.ds tc \*ftermcap\fP(5)
+.ds Es This returns ERR if it would cause the screen to scroll illegally.
+.ds Nm This has no associated \*(lq\fBmv\fP\*(rq command.
+.ie t .ds m \fB\s-2\(dg\s+2\fP
+.el .ds m [*]
+.\" .hy WINDOW
+.\".he ''\*(Ln''
+.\".fo ''\- % \-''
+.oh '\*(Ln''PS1:19-%'
+.eh 'PS1:19-%''\*(Ln'
+.de Un
+.b
+\s-2\\$2UNIX\\$1\s+2
+.ft
+..
+.de Ds
+.sp
+.lp
+.ev 1
+.nf
+.ft I
+.in 0
+.di Df
+..
+.de De
+.di
+.Df
+.ne \n(dn+2
+.ev
+.ip
+..
+.de Dg
+.di
+.Df
+.ne \n(dn+2
+.ev
+..
+.de Fd
+.br
+\&\\$4
+.fi
+.b
+\&\\$1(\\$2)
+.ft
+\&\\$3
+.br
+.nf
+..
+.de Vn
+\&\\$3\c
+.i "\\$1" \\$2
+..
+.de Bq
+.ie t \&\*(lq\fB\\$1\fP\*(rq
+.el \&\*(lq\fI\\$1\fP\*(rq
+..
+.de $0
+.(x
+.in \\n(Xs
+\\*($n \\$1
+.)x
+..
+.de $1
+.nr Xs 0
+..
+.de $2
+.nr Xs 3
+..
+.de $3
+.nr Xs 6
+..
+.de Fn
+.if \\n(.$==0 .tm error
+.nr ll 0
+.nr dg 0
+.ft R
+.if '\\$\\n(.$'.' .nr ll 1
+.if '\\$\\n(.$',' .nr ll 1
+.if '\\$\\n(.$')' .nr ll 1
+.if '\\$\\n(.$').' .nr ll 1
+.if '\\$\\n(.$';' .nr ll 1
+.if '\\$\\n(.$':' .nr ll 1
+.if '\\$\\n(.$'\'s' .nr ll 1
+.if '\\$\\n(.$'\(dg' .nr ll 1
+.\" .if '\\$\\n(.$'' .nr ll 1
+.nr al \\n(.$-\\n(ll
+.ds ot \f(CB\\$1\fP(
+.if \\n(al>1 .as ot \fI\\$2\fP
+.if \\n(al>2 .as ot ", \fI\\$3\fP
+.if \\n(al>3 .as ot ", \fI\\$4\fP
+.if \\n(al>4 .as ot ", \fI\\$5\fP
+.if \\n(al>5 .as ot ", \fI\\$6\fP
+.if \\n(al>6 .as ot ", \fI\\$7\fP
+.if \\n(al>7 .as ot ", \fI\\$8\fP
+.if \\n(al>8 .as ot ", \fI\\$9\fP
+.as ot )
+.if \\n(.$>1 \{\
+.       if \\n(ll==0 .as ot ;
+.       if '\\$\\n(.$'\(dg' .as ot ;
+.\}
+.if \\n(ll==1 .as ot \\$\\n(.$
+\\*(ot
+..
diff --git a/lib/libcurses/PSD.doc/twinkle1.c b/lib/libcurses/PSD.doc/twinkle1.c
new file mode 100644
index 0000000..7d3d00d
--- /dev/null
+++ b/lib/libcurses/PSD.doc/twinkle1.c
@@ -0,0 +1,157 @@
+.\" Copyright (c) 1980, 1993
+.\"	 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.
+.\"
+.\"	@(#)twinkle1.c	8.1 (Berkeley) 6/8/93
+.\"
+# include	<curses.h>
+# include	<signal.h>
+
+/*
+ * the idea for this program was a product of the imagination of
+ * Kurt Schoens.  Not responsible for minds lost or stolen.
+ */
+
+# define	NCOLS	80
+# define	NLINES	24
+# define	MAXPATTERNS	4
+
+typedef struct {
+	int	y, x;
+} LOCS;
+
+LOCS	Layout[NCOLS * NLINES];	/* current board layout */
+
+int	Pattern,		/* current pattern number */
+	Numstars;		/* number of stars in pattern */
+
+char	*getenv();
+
+int	die();
+
+main()
+{
+	srand(getpid());		/* initialize random sequence */
+
+	initscr();
+	signal(SIGINT, die);
+	noecho();
+	nonl();
+	leaveok(stdscr, TRUE);
+	scrollok(stdscr, FALSE);
+
+	for (;;) {
+		makeboard();		/* make the board setup */
+		puton('*');		/* put on '*'s */
+		puton(' ');		/* cover up with ' 's */
+	}
+}
+
+/*
+ * On program exit, move the cursor to the lower left corner by
+ * direct addressing, since current location is not guaranteed.
+ * We lie and say we used to be at the upper right corner to guarantee
+ * absolute addressing.
+ */
+die()
+{
+	signal(SIGINT, SIG_IGN);
+	mvcur(0, COLS - 1, LINES - 1, 0);
+	endwin();
+	exit(0);
+}
+
+
+/*
+ * Make the current board setup.  It picks a random pattern and
+ * calls ison() to determine if the character is on that pattern
+ * or not.
+ */
+makeboard()
+{
+	reg int		y, x;
+	reg LOCS	*lp;
+
+	Pattern = rand() % MAXPATTERNS;
+	lp = Layout;
+	for (y = 0; y < NLINES; y++)
+		for (x = 0; x < NCOLS; x++)
+			if (ison(y, x)) {
+				lp->y = y;
+				lp->x = x;
+				lp++;
+			}
+	Numstars = lp - Layout;
+}
+
+/*
+ * Return TRUE if (y, x) is on the current pattern.
+ */
+ison(y, x)
+reg int	y, x; {
+
+	switch (Pattern) {
+	  case 0:	/* alternating lines */
+		return !(y & 01);
+	  case 1:	/* box */
+		if (x >= LINES && y >= NCOLS)
+			return FALSE;
+		if (y < 3 || y >= NLINES - 3)
+			return TRUE;
+		return (x < 3 || x >= NCOLS - 3);
+	  case 2:	/* holy pattern! */
+		return ((x + y) & 01);
+	  case 3:	/* bar across center */
+		return (y >= 9 && y <= 15);
+	}
+	/* NOTREACHED */
+}
+
+puton(ch)
+reg char	ch;
+{
+	reg LOCS	*lp;
+	reg int		r;
+	reg LOCS	*end;
+	LOCS		temp;
+
+	end = &Layout[Numstars];
+	for (lp = Layout; lp < end; lp++) {
+		r = rand() % Numstars;
+		temp = *lp;
+		*lp = Layout[r];
+		Layout[r] = temp;
+	}
+
+	for (lp = Layout; lp < end; lp++) {
+		mvaddch(lp->y, lp->x, ch);
+		refresh();
+	}
+}
diff --git a/lib/libcurses/PSD.doc/twinkle2.c b/lib/libcurses/PSD.doc/twinkle2.c
new file mode 100644
index 0000000..0a25590
--- /dev/null
+++ b/lib/libcurses/PSD.doc/twinkle2.c
@@ -0,0 +1,96 @@
+.\" Copyright (c) 1980, 1993
+.\"	 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.
+.\"
+.\"	@(#)twinkle2.c	8.1 (Berkeley) 6/8/93
+.\"
+extern int	_putchar();
+
+main()
+{
+	reg char	*sp;
+
+	srand(getpid());		/* initialize random sequence */
+
+	if (isatty(0)) {
+	       gettmode();
+	       if ((sp = getenv("TERM")) != NULL)
+		       setterm(sp);
+		signal(SIGINT, die);
+	}
+	else {
+		printf("Need a terminal on %d\n", _tty_ch);
+		exit(1);
+	}
+	_puts(TI);
+	_puts(VS);
+
+	noecho();
+	nonl();
+	tputs(CL, NLINES, _putchar);
+	for (;;) {
+		makeboard();		/* make the board setup */
+		puton('*');		/* put on '*'s */
+		puton(' ');		/* cover up with ' 's */
+	}
+}
+
+puton(ch)
+char	ch;
+{
+	reg LOCS	*lp;
+	reg int		r;
+	reg LOCS	*end;
+	LOCS		temp;
+	static int	lasty, lastx;
+
+	end = &Layout[Numstars];
+	for (lp = Layout; lp < end; lp++) {
+		r = rand() % Numstars;
+		temp = *lp;
+		*lp = Layout[r];
+		Layout[r] = temp;
+	}
+
+	for (lp = Layout; lp < end; lp++)
+			/* prevent scrolling */
+		if (!AM || (lp->y < NLINES - 1 || lp->x < NCOLS - 1)) {
+			mvcur(lasty, lastx, lp->y, lp->x);
+			putchar(ch);
+			lasty = lp->y;
+			if ((lastx = lp->x + 1) >= NCOLS)
+				if (AM) {
+					lastx = 0;
+					lasty++;
+				}
+				else
+					lastx = NCOLS - 1;
+		}
+}
diff --git a/lib/libcurses/PSD.doc/win_st.c b/lib/libcurses/PSD.doc/win_st.c
new file mode 100644
index 0000000..7790f6c
--- /dev/null
+++ b/lib/libcurses/PSD.doc/win_st.c
@@ -0,0 +1,58 @@
+.\" Copyright (c) 1980, 1993
+.\"	 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.
+.\"
+.\"	@(#)win_st.c	8.1 (Berkeley) 6/8/93
+.\"
+# define	WINDOW	struct _win_st
+
+struct _win_st {
+	short		_cury, _curx;
+	short		_maxy, _maxx;
+	short		_begy, _begx;
+	short		_flags;
+	short		_ch_off;
+	bool		_clear;
+	bool		_leave;
+	bool		_scroll;
+	char		**_y;
+	short		*_firstch;
+	short		*_lastch;
+	struct _win_st	*_nextp, *_orig;
+};
+
+# define	_ENDLINE	001
+# define	_FULLWIN	002
+# define	_SCROLLWIN	004
+# define	_FLUSH		010
+# define	_FULLLINE	020
+# define	_IDLINE		040
+# define	_STANDOUT	0200
+# define	_NOCHANGE	-1
diff --git a/lib/libcurses/addbytes.c b/lib/libcurses/addbytes.c
new file mode 100644
index 0000000..5ec3a06
--- /dev/null
+++ b/lib/libcurses/addbytes.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 1987, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)addbytes.c	8.3 (Berkeley) 3/19/94";
+#endif	/* not lint */
+
+#include <curses.h>
+
+#define	SYNCH_IN	{y = win->cury; x = win->curx;}
+#define	SYNCH_OUT	{win->cury = y; win->curx = x;}
+
+/*
+ * waddbytes --
+ *	Add the character to the current position in the given window.
+ */
+int
+__waddbytes(win, bytes, count, so)
+	register WINDOW *win;
+	register const char *bytes;
+	register int count;
+	int so;
+{
+	static char blanks[] = "        ";
+	register int c, newx, x, y;
+	char stand;
+	__LINE *lp;
+
+	SYNCH_IN;
+
+#ifdef DEBUG
+	__CTRACE("ADDBYTES('%c') at (%d, %d)\n", c, y, x);
+#endif
+	while (count--) {
+		c = *bytes++;
+		switch (c) {
+		case '\t':
+			SYNCH_OUT;
+			if (waddbytes(win, blanks, 8 - (x % 8)) == ERR)
+				return (ERR);
+			SYNCH_IN;
+			break;
+
+		default:
+#ifdef DEBUG
+	__CTRACE("ADDBYTES(%0.2o, %d, %d)\n", win, y, x);
+#endif
+			
+			lp = win->lines[y];
+			if (lp->flags & __ISPASTEOL) {
+				lp->flags &= ~__ISPASTEOL;
+newline:			if (y == win->maxy - 1) {
+					if (win->flags & __SCROLLOK) {
+						SYNCH_OUT;
+						scroll(win);
+						SYNCH_IN;
+						lp = win->lines[y];
+					        x = 0;
+					} else
+						return (ERR);
+				} else {
+					y++;
+					lp = win->lines[y];
+					x = 0;
+				}
+				if (c == '\n')
+					break;
+			}
+				
+			stand = '\0';
+			if (win->flags & __WSTANDOUT || so)
+				stand |= __STANDOUT;
+#ifdef DEBUG
+	__CTRACE("ADDBYTES: 1: y = %d, x = %d, firstch = %d, lastch = %d\n",
+	    y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp);
+#endif
+			if (lp->line[x].ch != c || 
+			    !(lp->line[x].attr & stand)) {
+				newx = x + win->ch_off;
+				if (!(lp->flags & __ISDIRTY)) {
+					lp->flags |= __ISDIRTY;
+					*lp->firstchp = *lp->lastchp = newx;
+				}
+				else if (newx < *lp->firstchp)
+					*lp->firstchp = newx;
+				else if (newx > *lp->lastchp)
+					*lp->lastchp = newx;
+#ifdef DEBUG
+	__CTRACE("ADDBYTES: change gives f/l: %d/%d [%d/%d]\n",
+	    *lp->firstchp, *lp->lastchp,
+	    *lp->firstchp - win->ch_off,
+	    *lp->lastchp - win->ch_off);
+#endif
+			}
+			lp->line[x].ch = c;
+			if (stand)
+				lp->line[x].attr |= __STANDOUT;
+			else
+				lp->line[x].attr &= ~__STANDOUT;
+			if (x == win->maxx - 1)
+				lp->flags |= __ISPASTEOL;
+			else
+				x++;
+#ifdef DEBUG
+	__CTRACE("ADDBYTES: 2: y = %d, x = %d, firstch = %d, lastch = %d\n",
+	    y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp);
+#endif
+			break;
+		case '\n':
+			SYNCH_OUT;
+			wclrtoeol(win);
+			SYNCH_IN;
+			if (!NONL)
+				x = 0;
+			goto newline;
+		case '\r':
+			x = 0;
+			break;
+		case '\b':
+			if (--x < 0)
+				x = 0;
+			break;
+		}
+	}
+	SYNCH_OUT;
+	return (OK);
+}
diff --git a/lib/libcurses/addch.c b/lib/libcurses/addch.c
new file mode 100644
index 0000000..a045c87
--- /dev/null
+++ b/lib/libcurses/addch.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)addch.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * waddch --
+ *	Add the character to the current position in the given window.
+ *
+ */
+int
+waddch(win, ch)
+	WINDOW *win;
+	int ch;
+{
+	__LDATA buf;
+
+	buf.ch = ch;
+	buf.attr = 0;
+	return (__waddch(win, &buf));
+}
+
+int
+__waddch(win, dp)
+	WINDOW *win;
+	__LDATA *dp;
+{
+	char buf[2];
+
+	buf[0] = dp->ch;
+	return (__waddbytes(win, buf, 1, dp->attr & __STANDOUT));
+}
diff --git a/lib/libcurses/addnstr.c b/lib/libcurses/addnstr.c
new file mode 100644
index 0000000..bf607a0
--- /dev/null
+++ b/lib/libcurses/addnstr.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)addnstr.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+/*
+ * waddnstr --
+ *	Add a string (at most n characters) to the given window
+ *	starting at (_cury, _curx).  If n is negative, add the
+ *	entire string.
+ */
+int
+waddnstr(win, s, n)
+	WINDOW *win;
+	const char *s;
+	int n;
+{
+	size_t len;
+	const char *p;
+
+	if (n > 0)
+		for (p = s, len = 0; n-- && *p++; ++len);
+	else
+		len = strlen(s);
+	return (waddbytes(win, s, len));
+}
diff --git a/lib/libcurses/box.c b/lib/libcurses/box.c
new file mode 100644
index 0000000..4da2303
--- /dev/null
+++ b/lib/libcurses/box.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)box.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * box --
+ *	Draw a box around the given window with "vert" as the vertical
+ *	delimiting char, and "hor", as the horizontal one.
+ */
+int
+box(win, vert, hor)
+	register WINDOW *win;
+	int vert, hor;
+{
+	register int endy, endx, i;
+	register __LDATA *fp, *lp;
+
+	endx = win->maxx;
+	endy = win->maxy - 1;
+	fp = win->lines[0]->line;
+	lp = win->lines[endy]->line;
+	for (i = 0; i < endx; i++) {
+		fp[i].ch = lp[i].ch = hor;
+		fp[i].attr &= ~__STANDOUT;
+		lp[i].attr &= ~__STANDOUT;
+	}
+	endx--;
+	for (i = 0; i <= endy; i++) {
+		win->lines[i]->line[0].ch = vert;
+	        win->lines[i]->line[endx].ch = vert;
+		win->lines[i]->line[0].attr &= ~__STANDOUT;
+		win->lines[i]->line[endx].attr &= ~__STANDOUT;
+	}
+	if (!(win->flags & __SCROLLOK) && (win->flags & __SCROLLWIN)) {
+		fp[0].ch = fp[endx].ch = lp[0].ch = lp[endx].ch = ' ';
+		fp[0].attr &= ~__STANDOUT;
+		fp[endx].attr &= ~__STANDOUT;
+		lp[0].attr &= ~__STANDOUT;
+		lp[endx].attr &= ~__STANDOUT;
+	}
+	__touchwin(win);
+	return (OK);
+}
diff --git a/lib/libcurses/clear.c b/lib/libcurses/clear.c
new file mode 100644
index 0000000..89891e2
--- /dev/null
+++ b/lib/libcurses/clear.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)clear.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wclear --
+ *	Clear the window.
+ */
+int
+wclear(win)
+	register WINDOW *win;
+{
+	if (werase(win) == OK) {
+		win->flags |= __CLEAROK;
+		return (OK);
+	}
+	return (ERR);
+}
diff --git a/lib/libcurses/clrtobot.c b/lib/libcurses/clrtobot.c
new file mode 100644
index 0000000..0e73ef8
--- /dev/null
+++ b/lib/libcurses/clrtobot.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)clrtobot.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wclrtobot --
+ *	Erase everything on the window.
+ */
+int
+wclrtobot(win)
+	register WINDOW *win;
+{
+	register int minx, startx, starty, y;
+	register __LDATA *sp, *end, *maxx;
+
+	if (win->lines[win->cury]->flags & __ISPASTEOL) {
+		starty = win->cury + 1;
+		startx = 0;
+	} else {
+		starty = win->cury;
+		startx = win->curx;
+	}
+	for (y = starty; y < win->maxy; y++) {
+		minx = -1;
+		end = &win->lines[y]->line[win->maxx];
+		for (sp = &win->lines[y]->line[startx]; sp < end; sp++)
+			if (sp->ch != ' ' || sp->attr != 0) {
+				maxx = sp;
+				if (minx == -1)
+					minx = sp - win->lines[y]->line;
+				sp->ch = ' ';
+				sp->attr = 0;
+			}
+		if (minx != -1)
+			__touchline(win, y, minx, maxx - win->lines[y]->line,
+		            0);
+		startx = 0;
+	}
+	return (OK);
+}
diff --git a/lib/libcurses/clrtoeol.c b/lib/libcurses/clrtoeol.c
new file mode 100644
index 0000000..6fa63b4
--- /dev/null
+++ b/lib/libcurses/clrtoeol.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)clrtoeol.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wclrtoeol --
+ *	Clear up to the end of line.
+ */
+int
+wclrtoeol(win)
+	register WINDOW *win;
+{
+	register int minx, x, y;
+	register __LDATA *end, *maxx, *sp;
+
+	y = win->cury;
+	x = win->curx;
+	if (win->lines[y]->flags & __ISPASTEOL) {
+		if (y < win->maxy - 1) {
+			y++;
+			x = 0;
+		} else
+			return (OK);
+	}
+	end = &win->lines[y]->line[win->maxx];
+	minx = -1;
+	maxx = &win->lines[y]->line[x];
+	for (sp = maxx; sp < end; sp++)
+		if (sp->ch != ' ' || sp->attr != 0) {
+			maxx = sp;
+			if (minx == -1)
+				minx = sp - win->lines[y]->line;
+			sp->ch = ' ';
+			sp->attr = 0;
+		}
+#ifdef DEBUG
+	__CTRACE("CLRTOEOL: minx = %d, maxx = %d, firstch = %d, lastch = %d\n",
+	    minx, maxx - win->lines[y]->line, *win->lines[y]->firstchp, 
+	    *win->lines[y]->lastchp);
+#endif
+	/* Update firstch and lastch for the line. */
+	return (__touchline(win, y, x, win->maxx - 1, 0));
+}
+
+
+
+
+
diff --git a/lib/libcurses/cr_put.c b/lib/libcurses/cr_put.c
new file mode 100644
index 0000000..2f7a9e9
--- /dev/null
+++ b/lib/libcurses/cr_put.c
@@ -0,0 +1,431 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)cr_put.c	8.2 (Berkeley) 1/9/94";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+#define	HARDTABS	8
+
+/*
+ * Terminal driving and line formatting routines.  Basic motion optimizations
+ * are done here as well as formatting lines (printing of control characters,
+ * line numbering and the like).
+ */
+
+/* Stub function for the users. */
+int
+mvcur(ly, lx, y, x)
+	int ly, lx, y, x;
+{
+	return (__mvcur(ly, lx, y, x, 0));
+}
+
+static void	fgoto __P((int));
+static int	plod __P((int, int));
+static void	plodput __P((int));
+static int	tabcol __P((int, int));
+
+static int outcol, outline, destcol, destline;
+
+/*
+ * Sync the position of the output cursor.  Most work here is rounding for
+ * terminal boundaries getting the column position implied by wraparound or
+ * the lack thereof and rolling up the screen to get destline on the screen.
+ */
+int
+__mvcur(ly, lx, y, x, in_refresh)
+	int ly, lx, y, x, in_refresh;
+{
+#ifdef DEBUG
+	__CTRACE("mvcur: moving cursor from (%d, %d) to (%d, %d)\n",
+	    ly, lx, y, x);
+#endif
+	destcol = x;
+	destline = y;
+	outcol = lx;
+	outline = ly;
+	fgoto(in_refresh);
+	return (OK);
+}	
+        
+static void
+fgoto(in_refresh)
+	int in_refresh;
+{
+	register int c, l;
+	register char *cgp;
+
+	if (destcol >= COLS) {
+		destline += destcol / COLS;
+		destcol %= COLS;
+	}
+	if (outcol >= COLS) {
+		l = (outcol + 1) / COLS;
+		outline += l;
+		outcol %= COLS;
+		if (AM == 0) {
+			while (l > 0) {
+				if (__pfast)
+					if (CR)
+						tputs(CR, 0, __cputchar);
+					else
+						putchar('\r');
+				if (NL)
+					tputs(NL, 0, __cputchar);
+				else
+					putchar('\n');
+				l--;
+			}
+			outcol = 0;
+		}
+		if (outline > LINES - 1) {
+			destline -= outline - (LINES - 1);
+			outline = LINES - 1;
+		}
+	}
+	if (destline >= LINES) {
+		l = destline;
+		destline = LINES - 1;
+		if (outline < LINES - 1) {
+			c = destcol;
+			if (__pfast == 0 && !CA)
+				destcol = 0;
+			fgoto(in_refresh);
+			destcol = c;
+		}
+		while (l >= LINES) {
+			/* The following linefeed (or simulation thereof) is
+			 * supposed to scroll up the screen, since we are on
+			 * the bottom line.  We make the assumption that
+			 * linefeed will scroll.  If ns is in the capability
+			 * list this won't work.  We should probably have an
+			 * sc capability but sf will generally take the place
+			 * if it works.
+			 * 
+			 * Superbee glitch: in the middle of the screen have
+			 * to use esc B (down) because linefeed screws up in
+			 * "Efficient Paging" (what a joke) mode (which is
+			 * essential in some SB's because CRLF mode puts
+			 * garbage in at end of memory), but you must use
+			 * linefeed to scroll since down arrow won't go past
+			 * memory end. I turned this off after recieving Paul
+			 * Eggert's Superbee description which wins better.
+			 */
+			if (NL /* && !XB */ && __pfast)
+				tputs(NL, 0, __cputchar);
+			else
+				putchar('\n');
+			l--;
+			if (__pfast == 0)
+				outcol = 0;
+		}
+	}
+	if (destline < outline && !(CA || UP))
+		destline = outline;
+	if (CA) {
+		cgp = tgoto(CM, destcol, destline);
+
+		/*
+		 * Need this condition due to inconsistent behavior
+		 * of backspace on the last column.
+		 */
+		if (outcol != COLS - 1 && plod(strlen(cgp), in_refresh) > 0)
+			plod(0, in_refresh);
+		else 
+			tputs(cgp, 0, __cputchar);
+	} else
+		plod(0, in_refresh);
+	outline = destline;
+	outcol = destcol;
+}
+/*
+ * Move (slowly) to destination.
+ * Hard thing here is using home cursor on really deficient terminals.
+ * Otherwise just use cursor motions, hacking use of tabs and overtabbing
+ * and backspace.
+ */
+
+static int plodcnt, plodflg;
+
+static void
+plodput(c)
+	int c;
+{
+	if (plodflg)
+		--plodcnt;
+	else
+		putchar(c);
+}
+
+static int
+plod(cnt, in_refresh)
+	int cnt, in_refresh;
+{
+	register int i, j, k, soutcol, soutline;
+
+	plodcnt = plodflg = cnt;
+	soutcol = outcol;
+	soutline = outline;
+	/*
+	 * Consider homing and moving down/right from there, vs. moving
+	 * directly with local motions to the right spot.
+	 */
+	if (HO) {
+		/*
+		 * i is the cost to home and tab/space to the right to get to
+		 * the proper column.  This assumes ND space costs 1 char.  So
+		 * i + destcol is cost of motion with home.
+		 */
+		if (GT)
+			i = (destcol / HARDTABS) + (destcol % HARDTABS);
+		else
+			i = destcol;
+
+		/* j is cost to move locally without homing. */
+		if (destcol >= outcol) {	/* if motion is to the right */
+			j = destcol / HARDTABS - outcol / HARDTABS;
+			if (GT && j)
+				j += destcol % HARDTABS;
+			else
+				j = destcol - outcol;
+		} else
+			/* leftward motion only works if we can backspace. */
+			if (outcol - destcol <= i && (BS || BC))
+				/* Cheaper to backspace. */
+				i = j = outcol - destcol;
+			else
+				/* Impossibly expensive. */
+				j = i + 1;
+
+		/* k is the absolute value of vertical distance. */
+		k = outline - destline;
+		if (k < 0)
+			k = -k;
+		j += k;
+
+		/* Decision.  We may not have a choice if no UP. */
+		if (i + destline < j || (!UP && destline < outline)) {
+			/*
+			 * Cheaper to home.  Do it now and pretend it's a
+			 * regular local motion.
+			 */
+			tputs(HO, 0, plodput);
+			outcol = outline = 0;
+		} else if (LL) {
+			/*
+			 * Quickly consider homing down and moving from there.
+			 * Assume cost of LL is 2.
+			 */
+			k = (LINES - 1) - destline;
+			if (i + k + 2 < j && (k <= 0 || UP)) {
+				tputs(LL, 0, plodput);
+				outcol = 0;
+				outline = LINES - 1;
+			}
+		}
+	} else
+		/* No home and no up means it's impossible. */
+		if (!UP && destline < outline)
+			return (-1);
+	if (GT)
+		i = destcol % HARDTABS + destcol / HARDTABS;
+	else
+		i = destcol;
+#ifdef notdef
+	if (BT && outcol > destcol &&
+	    (j = (((outcol+7) & ~7) - destcol - 1) >> 3)) {
+		j *= (k = strlen(BT));
+		if ((k += (destcol&7)) > 4)
+			j += 8 - (destcol&7);
+		else
+			j += k;
+	}
+	else
+#endif
+		j = outcol - destcol;
+
+	/*
+	 * If we will later need a \n which will turn into a \r\n by the
+	 * system or the terminal, then don't bother to try to \r.
+	 */
+	if ((NONL || !__pfast) && outline < destline)
+		goto dontcr;
+
+	/*
+	 * If the terminal will do a \r\n and there isn't room for it, then
+	 * we can't afford a \r.
+	 */
+	if (NC && outline >= destline)
+		goto dontcr;
+
+	/*
+	 * If it will be cheaper, or if we can't back up, then send a return
+	 * preliminarily.
+	 */
+	if (j > i + 1 || outcol > destcol && !BS && !BC) {
+		/*
+		 * BUG: this doesn't take the (possibly long) length of CR
+		 * into account.
+		 */
+		if (CR)
+			tputs(CR, 0, plodput);
+		else
+			plodput('\r');
+		if (NC) {
+			if (NL)
+				tputs(NL, 0, plodput);
+			else
+				plodput('\n');
+			outline++;
+		}
+		outcol = 0;
+	}
+
+dontcr:	while (outline < destline) {
+		outline++;
+		if (NL)
+			tputs(NL, 0, plodput);
+		else
+			plodput('\n');
+		if (plodcnt < 0)
+			goto out;
+		if (NONL || __pfast == 0)
+			outcol = 0;
+	}
+	if (BT)
+		k = strlen(BT);
+	while (outcol > destcol) {
+		if (plodcnt < 0)
+			goto out;
+#ifdef notdef
+		if (BT && outcol - destcol > k + 4) {
+			tputs(BT, 0, plodput);
+			outcol--;
+			outcol &= ~7;
+			continue;
+		}
+#endif
+		outcol--;
+		if (BC)
+			tputs(BC, 0, plodput);
+		else
+			plodput('\b');
+	}
+	while (outline > destline) {
+		outline--;
+		tputs(UP, 0, plodput);
+		if (plodcnt < 0)
+			goto out;
+	}
+	if (GT && destcol - outcol > 1) {
+		for (;;) {
+			i = tabcol(outcol, HARDTABS);
+			if (i > destcol)
+				break;
+			if (TA)
+				tputs(TA, 0, plodput);
+			else
+				plodput('\t');
+			outcol = i;
+		}
+		if (destcol - outcol > 4 && i < COLS && (BC || BS)) {
+			if (TA)
+				tputs(TA, 0, plodput);
+			else
+				plodput('\t');
+			outcol = i;
+			while (outcol > destcol) {
+				outcol--;
+				if (BC)
+					tputs(BC, 0, plodput);
+				else
+					plodput('\b');
+			}
+		}
+	}
+	while (outcol < destcol) {
+		/*
+		 * Move one char to the right.  We don't use ND space because
+		 * it's better to just print the char we are moving over.
+		 */
+		if (in_refresh)
+			if (plodflg)	/* Avoid a complex calculation. */
+				plodcnt--;
+			else {
+				i = curscr->lines[outline]->line[outcol].ch;
+				if ((curscr->lines[outline]->line[outcol].attr
+				     & __STANDOUT) ==
+				    (curscr->flags & __WSTANDOUT))
+					putchar(i);
+				else
+					goto nondes;
+			}
+		else
+nondes:			if (ND)
+				tputs(ND, 0, plodput);
+			else
+				plodput(' ');
+		outcol++;
+		if (plodcnt < 0)
+			goto out;
+	}
+
+out:	if (plodflg) {
+		outcol = soutcol;
+		outline = soutline;
+	}
+	return (plodcnt);
+}
+
+/*
+ * Return the column number that results from being in column col and
+ * hitting a tab, where tabs are set every ts columns.  Work right for
+ * the case where col > COLS, even if ts does not divide COLS.
+ */
+static int
+tabcol(col, ts)
+	int col, ts;
+{
+	int offset;
+
+	if (col >= COLS) {
+		offset = COLS * (col / COLS);
+		col -= offset;
+	} else
+		offset = 0;
+	return (col + ts - (col % ts) + offset);
+}
diff --git a/lib/libcurses/ctrace.c b/lib/libcurses/ctrace.c
new file mode 100644
index 0000000..4f53906
--- /dev/null
+++ b/lib/libcurses/ctrace.c
@@ -0,0 +1,76 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)ctrace.c	8.2 (Berkeley) 10/5/93";
+#endif /* not lint */
+
+#ifdef DEBUG
+#include <stdio.h>
+
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#ifndef TFILE
+#define	TFILE	"__curses.out"
+#endif
+
+static FILE *tracefp;			/* Curses debugging file descriptor. */
+
+void
+#ifdef __STDC__
+__CTRACE(const char *fmt, ...)
+#else
+__CTRACE(fmt, va_alist)
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	if (tracefp == NULL)
+		tracefp = fopen(TFILE, "w");
+	if (tracefp == NULL)
+		return;
+	(void)vfprintf(tracefp, fmt, ap);
+	va_end(ap);
+	(void)fflush(tracefp);
+}
+#endif
diff --git a/lib/libcurses/cur_hash.c b/lib/libcurses/cur_hash.c
new file mode 100644
index 0000000..ed47fe3
--- /dev/null
+++ b/lib/libcurses/cur_hash.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)cur_hash.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <sys/types.h>
+
+
+/*
+ * __hash() is "hashpjw" from the Dragon Book, Aho, Sethi & Ullman, p.436.
+ */
+u_int
+__hash(s, len)
+	char *s;
+	int len;
+{
+        register u_int	h, g, i;
+
+	h = 0;
+	i = 0;
+        while (i < len) {
+                h = (h << 4) + s[i];
+                if (g = h & 0xf0000000) {
+                        h = h ^ (g >> 24);
+                        h = h ^ g;
+                }
+		i++;
+	}
+        return h;
+}
diff --git a/lib/libcurses/curses.3 b/lib/libcurses/curses.3
new file mode 100644
index 0000000..cd3a18f
--- /dev/null
+++ b/lib/libcurses/curses.3
@@ -0,0 +1,197 @@
+.\" Copyright (c) 1985, 1991, 1993
+.\"	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.
+.\"
+.\"     @(#)curses.3	8.1 (Berkeley) 6/4/93
+.\"
+.Dd June 4, 1993
+.Dt CURSES 3
+.Os BSD 4
+.Sh NAME
+.Nm curses
+.Nd screen functions with ``optimal'' cursor motion
+.Sh SYNOPSIS
+.Nm cc
+.Op Ar flags
+.Ar files
+.Fl lcurses ltermcap
+.Op Ar libraries
+.Sh DESCRIPTION
+These routines give the user a method of updating screens with reasonable
+optimization.  They keep an image of the current screen,
+and the user sets up an image of a new one.  Then the
+.Fn refresh
+tells the routines to make the current screen look like the new one.
+In order to initialize the routines, the routine
+.Fn initscr
+must be called before any of the other routines that deal with windows and
+screens are used.  The routine
+.Fn endwin
+should be called before exiting.
+.Sh SEE ALSO
+.Xr ioctl 2 ,
+.Xr getenv 3 ,
+.Xr tty 4 ,
+.Xr termcap 5
+.Rs
+.%T Screen Updating and Cursor Movement Optimization: A Library Package
+.%A Ken Arnold
+.Re
+.Sh AUTHOR
+.An Ken Arnold
+.Sh FUNCTIONS
+.Bl -column "subwin(win,lines,cols,begin_y,begin_x)   "
+.It addch(ch)	add a character to
+.Em stdscr
+.It addstr(str)	add a string to
+.Em stdscr
+.It box(win,vert,hor)	draw a box around a window
+.It cbreak()	set cbreak mode
+.It clear()	clear
+.Em stdscr
+.It clearok(scr,boolf)	set clear flag for
+.Em scr
+.It clrtobot()	clear to bottom on
+.Em stdscr
+.It clrtoeol()	clear to end of line on
+.Em stdscr
+.It delch()	delete a character
+.It deleteln()	delete a line
+.It delwin(win)	delete
+.Em stdscr
+.It echo()	set echo mode
+.It endwin()	end window modes
+.It erase()	erase
+.Em stdscr
+.It flusok(win,boolf)	set flush-on-refresh flag for
+.Em win
+.It getch()	get a char through
+.Em stdscr
+.It getcap(name)	get terminal capability
+.Em name
+.It getstr(str)	get a string through
+.Em stdscr
+.It gettmode()	get tty modes
+.It getyx(win,y,x)	get (y,x) co-ordinates
+.It inch()	get char at current (y,x) co-ordinates
+.It initscr()	initialize screens
+.It insch(c)	insert a char
+.It insertln()	insert a line
+.It leaveok(win,boolf)	set leave flag for
+.Em stdscr
+.It longname(termbuf,name)	get long name from
+.Em termbuf
+.It move(y,x)	move to (y,x) on
+.Em stdscr
+.It mvcur(lasty,lastx,newy,newx)	actually move cursor
+.It newwin(lines,cols,begin_y,begin_x)\ 	create a new window
+.It nl()	set newline mapping
+.It nocbreak()	unset cbreak mode
+.It noecho()	unset echo mode
+.It nonl()	unset newline mapping
+.It noraw()	unset raw mode
+.It overlay(win1,win2)	overlay win1 on win2
+.It overwrite(win1,win2)	overwrite win1 on top of win2
+.It printw(fmt,arg1,arg2,...)	printf on
+.Em stdscr
+.It raw()	set raw mode
+.It refresh()	make current screen look like
+.Em stdscr
+.It resetty()	reset tty flags to stored value
+.It savetty()	stored current tty flags
+.It scanw(fmt,arg1,arg2,...)	scanf through
+.Em stdscr
+.It scroll(win)	scroll
+.Em win
+one line
+.It scrollok(win,boolf)	set scroll flag
+.It setterm(name)	set term variables for name
+.It standend()	end standout mode
+.It standout()	start standout mode
+.It subwin(win,lines,cols,begin_y,begin_x)\ 	create a subwindow
+.It touchline(win,y,sx,ex)	mark line
+.Em y
+.Em sx
+through
+.Em sy
+as changed
+.It touchoverlap(win1,win2)	mark overlap of
+.Em win1
+on
+.Em win2
+as changed
+.It touchwin(win)	\*(lqchange\*(rq all of
+.Em win
+.It unctrl(ch)	printable version of
+.Em ch
+.It waddch(win,ch)	add char to
+.Em win
+.It waddstr(win,str)	add string to
+.Em win
+.It wclear(win)	clear
+.Em win
+.It wclrtobot(win)	clear to bottom of
+.Em win
+.It wclrtoeol(win)	clear to end of line on
+.Em win
+.It wdelch(win,c)	delete char from
+.Em win
+.It wdeleteln(win)	delete line from
+.Em win
+.It werase(win)	erase
+.Em win
+.It wgetch(win)	get a char through
+.Em win
+.It wgetstr(win,str)	get a string through
+.Em win
+.It winch(win)	get char at current (y,x) in
+.Em win
+.It winsch(win,c)	insert char into
+.Em win
+.It winsertln(win)	insert line into
+.Em win
+.It wmove(win,y,x)	set current (y,x) co-ordinates on
+.Em win
+.It wprintw(win,fmt,arg1,arg2,...)\ 	printf on
+.Em win
+.It wrefresh(win)	make screen look like
+.Em win
+.It wscanw(win,fmt,arg1,arg2,...)\ 	scanf through
+.Em win
+.It wstandend(win)	end standout mode on
+.Em win
+.It wstandout(win)	start standout mode on
+.Em win
+.El
+.Sh HISTORY
+The
+.Nm
+package appeared in 
+.Bx 4.0 .
diff --git a/lib/libcurses/curses.c b/lib/libcurses/curses.c
new file mode 100644
index 0000000..87ed839
--- /dev/null
+++ b/lib/libcurses/curses.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)curses.c	8.2 (Berkeley) 1/2/94";
+#endif /* not lint */
+
+#include <curses.h>
+
+/* Private. */
+int	__echoit = 1;			/* If stty indicates ECHO. */
+int	__pfast;
+int	__rawmode = 0;			/* If stty indicates RAW mode. */
+int	__noqch = 0;			/* 
+					 * If terminal doesn't have 
+					 * insert/delete line capabilities 
+					 * for quick change on refresh.
+					 */
+char	AM, BS, CA, DA, EO, HC, IN, MI, MS, NC, NS, OS, PC,
+	UL, XB, XN, XT, XS, XX;
+char	*AL, *BC, *BT, *CD, *CE, *CL, *CM, *CR, *CS, *DC, *DL,
+	*DM, *DO, *ED, *EI, *K0, *K1, *K2, *K3, *K4, *K5, *K6,
+	*K7, *K8, *K9, *HO, *IC, *IM, *IP, *KD, *KE, *KH, *KL,
+	*KR, *KS, *KU, *LL, *MA, *ND, *NL, *RC, *SC, *SE, *SF,
+	*SO, *SR, *TA, *TE, *TI, *UC, *UE, *UP, *US, *VB, *VS,
+	*VE, *al, *dl, *sf, *sr,
+	*AL_PARM, *DL_PARM, *UP_PARM, *DOWN_PARM, *LEFT_PARM,
+	*RIGHT_PARM;
+/*
+ * Public.
+ *
+ * XXX
+ * UPPERCASE isn't used by libcurses, and is left for backward
+ * compatibility only.
+ */
+WINDOW	*curscr;			/* Current screen. */
+WINDOW	*stdscr;			/* Standard screen. */
+int	 COLS;				/* Columns on the screen. */
+int	 LINES;				/* Lines on the screen. */
+int	 My_term = 0;			/* Use Def_term regardless. */
+char	*Def_term = "unknown";		/* Default terminal type. */
+char	 GT;				/* Gtty indicates tabs. */
+char	 NONL;				/* Term can't hack LF doing a CR. */
+char	 UPPERCASE;			/* Terminal is uppercase only. */
diff --git a/lib/libcurses/curses.h b/lib/libcurses/curses.h
new file mode 100644
index 0000000..0eaef1e
--- /dev/null
+++ b/lib/libcurses/curses.h
@@ -0,0 +1,335 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ *
+ *	@(#)curses.h	8.2 (Berkeley) 1/2/94
+ */
+
+#ifndef _CURSES_H_
+#define	_CURSES_H_
+
+#include <stdio.h>
+
+/*
+ * The following #defines and #includes are present for backward
+ * compatibility only.  They should not be used in future code.
+ *
+ * START BACKWARD COMPATIBILITY ONLY.
+ */
+#ifndef _CURSES_PRIVATE
+#define	bool	char
+#define	reg	register
+
+#ifndef TRUE
+#define	TRUE	(1)
+#endif
+#ifndef FALSE
+#define	FALSE	(0)
+#endif
+
+#define	_puts(s)	tputs(s, 0, __cputchar)
+#define	_putchar(c)	__cputchar(c)
+
+/* Old-style terminal modes access. */
+#define	baudrate()	(cfgetospeed(&__baset))
+#define	crmode()	cbreak()
+#define	erasechar()	(__baset.c_cc[VERASE])
+#define	killchar()	(__baset.c_cc[VKILL])
+#define	nocrmode()	nocbreak()
+#define	ospeed		(cfgetospeed(&__baset))
+#endif /* _CURSES_PRIVATE */
+
+extern char	 GT;			/* Gtty indicates tabs. */
+extern char	 NONL;			/* Term can't hack LF doing a CR. */
+extern char	 UPPERCASE;		/* Terminal is uppercase only. */
+
+extern int	 My_term;		/* Use Def_term regardless. */
+extern char	*Def_term;		/* Default terminal type. */
+
+/* Termcap capabilities. */
+extern char	AM, BS, CA, DA, EO, HC, IN, MI, MS, NC, NS, OS,
+		PC, UL, XB, XN, XT, XS, XX;
+extern char	*AL, *BC, *BT, *CD, *CE, *CL, *CM, *CR, *CS, *DC, *DL,
+		*DM, *DO, *ED, *EI, *K0, *K1, *K2, *K3, *K4, *K5, *K6,
+		*K7, *K8, *K9, *HO, *IC, *IM, *IP, *KD, *KE, *KH, *KL,
+		*KR, *KS, *KU, *LL, *MA, *ND, *NL, *RC, *SC, *SE, *SF,
+		*SO, *SR, *TA, *TE, *TI, *UC, *UE, *UP, *US, *VB, *VS,
+		*VE, *al, *dl, *sf, *sr,
+		*AL_PARM, *DL_PARM, *UP_PARM, *DOWN_PARM, *LEFT_PARM,
+		*RIGHT_PARM;
+
+/* END BACKWARD COMPATIBILITY ONLY. */
+
+/* 8-bit ASCII characters. */
+#define	unctrl(c)		__unctrl[(c) & 0xff]
+#define	unctrllen(ch)		__unctrllen[(ch) & 0xff]
+
+extern char	*__unctrl[256];	/* Control strings. */
+extern char	 __unctrllen[256];	/* Control strings length. */
+
+/*
+ * A window an array of __LINE structures pointed to by the 'lines' pointer.
+ * A line is an array of __LDATA structures pointed to by the 'line' pointer.
+ *
+ * IMPORTANT: the __LDATA structure must NOT induce any padding, so if new
+ * fields are added -- padding fields with *constant values* should ensure 
+ * that the compiler will not generate any padding when storing an array of
+ *  __LDATA structures.  This is to enable consistent use of memcmp, and memcpy
+ * for comparing and copying arrays.
+ */
+typedef struct {
+	char ch;			/* the actual character */
+
+#define	__STANDOUT	0x01  		/* Added characters are standout. */
+	char attr;			/* attributes of character */
+} __LDATA;
+
+#define __LDATASIZE	(sizeof(__LDATA))
+
+typedef struct {
+#define	__ISDIRTY	0x01		/* Line is dirty. */
+#define __ISPASTEOL	0x02		/* Cursor is past end of line */
+#define __FORCEPAINT	0x04		/* Force a repaint of the line */
+	u_int flags;
+	u_int hash;			/* Hash value for the line. */
+	size_t *firstchp, *lastchp;	/* First and last chngd columns ptrs */
+	size_t firstch, lastch;		/* First and last changed columns. */
+	__LDATA *line;			/* Pointer to the line text. */
+} __LINE;
+
+typedef struct __window {		/* Window structure. */
+	struct __window	*nextp, *orig;	/* Subwindows list and parent. */
+	size_t begy, begx;		/* Window home. */
+	size_t cury, curx;		/* Current x, y coordinates. */
+	size_t maxy, maxx;		/* Maximum values for curx, cury. */
+	short ch_off;			/* x offset for firstch/lastch. */
+	__LINE **lines;			/* Array of pointers to the lines */
+	__LINE  *lspace;		/* line space (for cleanup) */
+	__LDATA *wspace;		/* window space (for cleanup) */
+
+#define	__ENDLINE	0x001		/* End of screen. */
+#define	__FLUSH		0x002		/* Fflush(stdout) after refresh. */
+#define	__FULLLINE	0x004		/* Line width = terminal width. */
+#define	__FULLWIN	0x008		/* Window is a screen. */
+#define	__IDLINE	0x010		/* Insert/delete sequences. */
+#define	__SCROLLWIN	0x020		/* Last char will scroll window. */
+#define	__SCROLLOK	0x040		/* Scrolling ok. */
+#define	__CLEAROK	0x080		/* Clear on next refresh. */
+#define __WSTANDOUT	0x100		/* Standout window */
+#define __LEAVEOK	0x200		/* If curser left */	
+	u_int flags;
+} WINDOW;
+
+/* Curses external declarations. */
+extern WINDOW	*curscr;		/* Current screen. */
+extern WINDOW	*stdscr;		/* Standard screen. */
+
+extern struct termios __orig_termios;	/* Terminal state before curses */
+extern struct termios __baset;		/* Our base terminal state */
+extern int __tcaction;			/* If terminal hardware set. */
+
+extern int	 COLS;			/* Columns on the screen. */
+extern int	 LINES;			/* Lines on the screen. */
+
+extern char	*ttytype;		/* Full name of current terminal. */
+
+#define	ERR	(0)			/* Error return. */
+#define	OK	(1)			/* Success return. */
+
+/* Standard screen pseudo functions. */
+#define	addbytes(s, n)			__waddbytes(stdscr, s, n, 0)
+#define	addch(ch)			waddch(stdscr, ch)
+#define	addnstr(s, n)			waddnstr(stdscr, s, n)
+#define	addstr(s)			__waddbytes(stdscr, s, strlen(s), 0)
+#define	clear()				wclear(stdscr)
+#define	clrtobot()			wclrtobot(stdscr)
+#define	clrtoeol()			wclrtoeol(stdscr)
+#define	delch()				wdelch(stdscr)
+#define	deleteln()			wdeleteln(stdscr)
+#define	erase()				werase(stdscr)
+#define	getch()				wgetch(stdscr)
+#define	getstr(s)			wgetstr(stdscr, s)
+#define	inch()				winch(stdscr)
+#define	insch(ch)			winsch(stdscr, ch)
+#define	insertln()			winsertln(stdscr)
+#define	move(y, x)			wmove(stdscr, y, x)
+#define	refresh()			wrefresh(stdscr)
+#define	standend()			wstandend(stdscr)
+#define	standout()			wstandout(stdscr)
+#define	waddbytes(w, s, n)		__waddbytes(w, s, n, 0)
+#define	waddstr(w, s)			__waddbytes(w, s, strlen(s), 0)
+
+/* Standard screen plus movement pseudo functions. */
+#define	mvaddbytes(y, x, s, n)		mvwaddbytes(stdscr, y, x, s, n)
+#define	mvaddch(y, x, ch)		mvwaddch(stdscr, y, x, ch)
+#define	mvaddnstr(y, x, s, n)		mvwaddnstr(stdscr, y, x, s, n)
+#define	mvaddstr(y, x, s)		mvwaddstr(stdscr, y, x, s)
+#define	mvdelch(y, x)			mvwdelch(stdscr, y, x)
+#define	mvgetch(y, x)			mvwgetch(stdscr, y, x)
+#define	mvgetstr(y, x, s)		mvwgetstr(stdscr, y, x, s)
+#define	mvinch(y, x)			mvwinch(stdscr, y, x)
+#define	mvinsch(y, x, c)		mvwinsch(stdscr, y, x, c)
+#define	mvwaddbytes(w, y, x, s, n) \
+	(wmove(w, y, x) == ERR ? ERR : __waddbytes(w, s, n, 0))
+#define	mvwaddch(w, y, x, ch) \
+	(wmove(w, y, x) == ERR ? ERR : waddch(w, ch))
+#define	mvwaddnstr(w, y, x, s, n) \
+	(wmove(w, y, x) == ERR ? ERR : waddnstr(w, s, n))
+#define	mvwaddstr(w, y, x, s) \
+	(wmove(w, y, x) == ERR ? ERR : __waddbytes(w, s, strlen(s), 0))
+#define	mvwdelch(w, y, x) \
+	(wmove(w, y, x) == ERR ? ERR : wdelch(w))
+#define	mvwgetch(w, y, x) \
+	(wmove(w, y, x) == ERR ? ERR : wgetch(w))
+#define	mvwgetstr(w, y, x, s) \
+	(wmove(w, y, x) == ERR ? ERR : wgetstr(w, s))
+#define	mvwinch(w, y, x) \
+	(wmove(w, y, x) == ERR ? ERR : winch(w))
+#define	mvwinsch(w, y, x, c) \
+	(wmove(w, y, x) == ERR ? ERR : winsch(w, c))
+
+/* Psuedo functions. */
+#define	clearok(w, bf) \
+	((bf) ? ((w)->flags |= __CLEAROK) : ((w)->flags &= ~__CLEAROK))
+#define	flushok(w, bf) \
+	((bf) ? ((w)->flags |= __FLUSH) : ((w)->flags &= ~__FLUSH))
+#define	getyx(w, y, x) \
+	(y) = (w)->cury, (x) = (w)->curx
+#define	leaveok(w, bf) \
+	((bf) ? ((w)->flags |= __LEAVEOK) : ((w)->flags &= ~__LEAVEOK))
+#define	scrollok(w, bf) \
+	((bf) ? ((w)->flags |= __SCROLLOK) : ((w)->flags &= ~__SCROLLOK))
+#define	winch(w) \
+	((w)->lines[(w)->cury]->line[(w)->curx].ch & 0177)
+
+/* Public function prototypes. */
+int	 box __P((WINDOW *, int, int));
+int	 cbreak __P((void));
+int	 delwin __P((WINDOW *));
+int	 echo __P((void));
+int	 endwin __P((void));
+char	*fullname __P((char *, char *));
+char	*getcap __P((char *));
+int	 gettmode __P((void));
+void	 idlok __P((WINDOW *, int));
+WINDOW	*initscr __P((void));
+char	*longname __P((char *, char *));
+int	 mvcur __P((int, int, int, int));
+int	 mvprintw __P((int, int, const char *, ...));
+int	 mvscanw __P((int, int, const char *, ...));
+int	 mvwin __P((WINDOW *, int, int));
+int	 mvwprintw __P((WINDOW *, int, int, const char *, ...));
+int	 mvwscanw __P((WINDOW *, int, int, const char *, ...));
+WINDOW	*newwin __P((int, int, int, int));
+int	 nl __P((void));
+int	 nocbreak __P((void));
+int	 noecho __P((void));
+int	 nonl __P((void));
+int	 noraw __P((void));
+int	 overlay __P((WINDOW *, WINDOW *));
+int	 overwrite __P((WINDOW *, WINDOW *));
+int	 printw __P((const char *, ...));
+int	 raw __P((void));
+int	 resetty __P((void));
+int	 savetty __P((void));
+int	 scanw __P((const char *, ...));
+int	 scroll __P((WINDOW *));
+int	 setterm __P((char *));
+int	 sscans __P((WINDOW *, const char *, ...));
+WINDOW	*subwin __P((WINDOW *, int, int, int, int));
+int	 suspendwin __P((void));
+int	 touchline __P((WINDOW *, int, int, int));
+int	 touchoverlap __P((WINDOW *, WINDOW *));
+int	 touchwin __P((WINDOW *));
+int 	 vwprintw __P((WINDOW *, const char *, _BSD_VA_LIST_));
+int      vwscanw __P((WINDOW *, const char *, _BSD_VA_LIST_));
+int	 waddch __P((WINDOW *, int));
+int	 waddnstr __P((WINDOW *, const char *, int));
+int	 wclear __P((WINDOW *));
+int	 wclrtobot __P((WINDOW *));
+int	 wclrtoeol __P((WINDOW *));
+int	 wdelch __P((WINDOW *));
+int	 wdeleteln __P((WINDOW *));
+int	 werase __P((WINDOW *));
+int	 wgetch __P((WINDOW *));
+int	 wgetstr __P((WINDOW *, char *));
+int	 winsch __P((WINDOW *, int));
+int	 winsertln __P((WINDOW *));
+int	 wmove __P((WINDOW *, int, int));
+int	 wprintw __P((WINDOW *, const char *, ...));
+int	 wrefresh __P((WINDOW *));
+int	 wscanw __P((WINDOW *, const char *, ...));
+char	*wstandend __P((WINDOW *));
+char	*wstandout __P((WINDOW *));
+int	 vwprintw __P((WINDOW *, const char *, _BSD_VA_LIST_));
+
+/* Private functions that are needed for user programs prototypes. */
+void	 __cputchar __P((int));
+int	 __waddbytes __P((WINDOW *, const char *, int, int));
+
+/* Private functions. */
+#ifdef _CURSES_PRIVATE
+void	 __CTRACE __P((const char *, ...));
+u_int	 __hash __P((char *, int));
+void	 __id_subwins __P((WINDOW *));
+int	 __mvcur __P((int, int, int, int, int));
+void	 __restore_stophandler __P((void));
+void	 __set_stophandler __P((void));
+void	 __set_subwin __P((WINDOW *, WINDOW *));
+void	 __startwin __P((void));
+void	 __stop_signal_handler __P((int));
+void	 __swflags __P((WINDOW *));
+int	 __touchline __P((WINDOW *, int, int, int, int));
+int	 __touchwin __P((WINDOW *));
+char	*__tscroll __P((const char *, int));
+int	 __waddch __P((WINDOW *, __LDATA *));
+
+/* Private #defines. */
+#define	min(a,b)	(a < b ? a : b)
+#define	max(a,b)	(a > b ? a : b)
+
+/* Private externs. */
+extern int	 __echoit;
+extern int	 __endwin;
+extern int	 __pfast;
+extern int	 __rawmode;
+extern int	 __noqch;
+#endif
+
+/* Termcap functions. */
+int	 tgetent __P((char *, char *));
+int	 tgetnum __P((char *));
+int	 tgetflag __P((char *));
+char	*tgetstr __P((char *, char **));
+char	*tgoto __P((char *, int, int));
+int	 tputs __P((char *, int, void (*)(int)));
+
+#endif /* !_CURSES_H_ */
diff --git a/lib/libcurses/delch.c b/lib/libcurses/delch.c
new file mode 100644
index 0000000..ad7d352
--- /dev/null
+++ b/lib/libcurses/delch.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)delch.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+/*
+ * wdelch --
+ *	Do an insert-char on the line, leaving (cury, curx) unchanged.
+ */
+int
+wdelch(win)
+	register WINDOW *win;
+{
+	register __LDATA *end, *temp1, *temp2;
+
+	end = &win->lines[win->cury]->line[win->maxx - 1];
+	temp1 = &win->lines[win->cury]->line[win->curx];
+	temp2 = temp1 + 1;
+	while (temp1 < end) {
+		(void)memcpy(temp1, temp2, sizeof(__LDATA));
+		temp1++, temp2++;
+	}
+	temp1->ch = ' ';
+	temp1->attr = 0;
+	__touchline(win, win->cury, win->curx, win->maxx - 1, 0);
+	return (OK);
+}
diff --git a/lib/libcurses/deleteln.c b/lib/libcurses/deleteln.c
new file mode 100644
index 0000000..6c4688a
--- /dev/null
+++ b/lib/libcurses/deleteln.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)deleteln.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+/*
+ * wdeleteln --
+ *	Delete a line from the screen.  It leaves (cury, curx) unchanged.
+ */
+int
+wdeleteln(win)
+	register WINDOW *win;
+{
+	register int y, i;
+	register __LINE *temp;
+
+#ifdef DEBUG
+	__CTRACE("deleteln: (%0.2o)\n", win);
+#endif
+	temp = win->lines[win->cury];
+	for (y = win->cury; y < win->maxy - 1; y++) {
+		win->lines[y]->flags &= ~__ISPASTEOL;
+		win->lines[y + 1]->flags &= ~__ISPASTEOL;
+		if (win->orig == NULL)
+			win->lines[y] = win->lines[y + 1];
+		else
+			(void) memcpy(win->lines[y]->line, 
+			    win->lines[y + 1]->line, 
+			    win->maxx * __LDATASIZE);
+		__touchline(win, y, 0, win->maxx - 1, 0);
+	}
+
+	if (win->orig == NULL)
+		win->lines[y] = temp;
+	else
+		temp = win->lines[y];
+
+	for(i = 0; i < win->maxx; i++) {
+		temp->line[i].ch = ' ';
+		temp->line[i].attr = 0;
+	}
+	__touchline(win, y, 0, win->maxx - 1, 0);
+	if (win->orig == NULL)
+		__id_subwins(win);
+	return (OK);
+}
diff --git a/lib/libcurses/delwin.c b/lib/libcurses/delwin.c
new file mode 100644
index 0000000..3f6848a
--- /dev/null
+++ b/lib/libcurses/delwin.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)delwin.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <stdlib.h>
+
+/*
+ * delwin --
+ *	Delete a window and release it back to the system.
+ */
+int
+delwin(win)
+	register WINDOW *win;
+{
+
+	register WINDOW *wp, *np;
+
+	if (win->orig == NULL) {
+		/*
+		 * If we are the original window, delete the space for all
+		 * the subwindows, the line space and the window space.
+		 */
+		free(win->lspace);
+		free(win->wspace);
+		free(win->lines);
+		wp = win->nextp;
+		while (wp != win) {
+			np = wp->nextp;
+			delwin(wp);
+			wp = np;
+		}
+	} else {
+		/*
+		 * If we are a subwindow, take ourselves out of the list.
+		 * NOTE: if we are a subwindow, the minimum list is orig
+		 * followed by this subwindow, so there are always at least
+		 * two windows in the list.
+		 */
+		for (wp = win->nextp; wp->nextp != win; wp = wp->nextp)
+			continue;
+		wp->nextp = win->nextp;
+	}
+	free(win);
+	return (OK);
+}
diff --git a/lib/libcurses/erase.c b/lib/libcurses/erase.c
new file mode 100644
index 0000000..b19e15b
--- /dev/null
+++ b/lib/libcurses/erase.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)erase.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * werase --
+ *	Erases everything on the window.
+ */
+int
+werase(win)
+	register WINDOW *win;
+{
+
+	register int minx, y;
+	register __LDATA *sp, *end, *start, *maxx;
+
+#ifdef DEBUG
+	__CTRACE("werase: (%0.2o)\n", win);
+#endif
+	for (y = 0; y < win->maxy; y++) {
+		minx = -1;
+		start = win->lines[y]->line;
+		end = &start[win->maxx];
+		for (sp = start; sp < end; sp++)
+			if (sp->ch != ' ' || sp->attr != 0) {
+				maxx = sp; 
+				if (minx == -1)
+					minx = sp - start;
+				sp->ch = ' ';
+				sp->attr = 0;
+			}
+		if (minx != -1)
+			__touchline(win, y, minx, maxx - win->lines[y]->line,
+			   0);
+	}
+	return (OK);
+}
diff --git a/lib/libcurses/fullname.c b/lib/libcurses/fullname.c
new file mode 100644
index 0000000..3d05e5d
--- /dev/null
+++ b/lib/libcurses/fullname.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)fullname.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+/*
+ * fullname --
+ *	This routine fills in "def" with the full name of the terminal.
+ *	This is assumed to be the last name in the list of aliases.
+ */
+char *
+fullname(bp, def)
+	register char *bp, *def;
+{
+	register char *cp;
+
+	*def = '\0';		/* In case no name. */
+
+	while (*bp && *bp != ':') {
+		cp = def;	/* Start of answer. */
+		while (*bp && *bp != ':' && *bp != '|')
+			*cp++ = *bp++;	/* Copy name over. */
+		*cp = '\0';		/* Zero end of name. */
+		if (*bp == '|')
+			bp++;		/* Skip over '|' if that is case. */
+	}
+	return (def);
+}
diff --git a/lib/libcurses/getch.c b/lib/libcurses/getch.c
new file mode 100644
index 0000000..77825bb
--- /dev/null
+++ b/lib/libcurses/getch.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)getch.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wgetch --
+ *	Read in a character from the window.
+ */
+int
+wgetch(win)
+	register WINDOW *win;
+{
+	register int inp, weset;
+
+	if (!(win->flags & __SCROLLOK) && (win->flags & __FULLWIN)
+	    && win->curx == win->maxx - 1 && win->cury == win->maxy - 1)
+		return (ERR);
+#ifdef DEBUG
+	__CTRACE("wgetch: __echoit = %d, __rawmode = %d\n",
+	    __echoit, __rawmode);
+#endif
+	if (__echoit && !__rawmode) {
+		cbreak();
+		weset = 1;
+	} else
+		weset = 0;
+
+	inp = getchar();
+#ifdef DEBUG
+	__CTRACE("wgetch got '%s'\n", unctrl(inp));
+#endif
+	if (__echoit) {
+		mvwaddch(curscr,
+		    win->cury + win->begy, win->curx + win->begx, inp);
+		waddch(win, inp);
+	}
+	if (weset)
+		nocbreak();
+	return (inp);
+}
diff --git a/lib/libcurses/getstr.c b/lib/libcurses/getstr.c
new file mode 100644
index 0000000..6194f1f
--- /dev/null
+++ b/lib/libcurses/getstr.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)getstr.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wgetstr --
+ *	Get a string starting at (cury, curx).
+ */
+int
+wgetstr(win, str)
+	register WINDOW *win;
+	register char *str;
+{
+	while ((*str = wgetch(win)) != ERR && *str != '\n')
+		str++;
+	if (*str == ERR) {
+		*str = '\0';
+		return (ERR);
+	}
+	*str = '\0';
+	return (OK);
+}
diff --git a/lib/libcurses/id_subwins.c b/lib/libcurses/id_subwins.c
new file mode 100644
index 0000000..6dc715c
--- /dev/null
+++ b/lib/libcurses/id_subwins.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)id_subwins.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * __id_subwins --
+ *	Re-sync the pointers to lines for all the subwindows.
+ */
+void
+__id_subwins(orig)
+	register WINDOW *orig;
+{
+	register WINDOW *win;
+	register int oy, realy, y;
+
+	realy = orig->begy + orig->cury;
+	for (win = orig->nextp; win != orig; win = win->nextp) {
+		/*
+		 * If the window ends before our current position, don't need
+		 * to do anything.
+		 */
+		if (win->begy + win->maxy <= realy)
+			continue;
+
+		oy = orig->cury;
+		for (y = realy - win->begy; y < win->maxy; y++, oy++)
+			win->lines[y]->line = 
+				&orig->lines[oy]->line[win->ch_off];
+	}
+}
diff --git a/lib/libcurses/idlok.c b/lib/libcurses/idlok.c
new file mode 100644
index 0000000..ef0a1e2
--- /dev/null
+++ b/lib/libcurses/idlok.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)idlok.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * idlok --
+ *	Turn on and off using insert/deleteln sequences for the
+ *	given window.
+ */
+void
+idlok(win, bf)
+	WINDOW *win;
+	int bf;
+{
+	if (bf)
+		win->flags |= __IDLINE;
+	else
+		win->flags &= ~__IDLINE;
+}
diff --git a/lib/libcurses/initscr.c b/lib/libcurses/initscr.c
new file mode 100644
index 0000000..8ed0f9f
--- /dev/null
+++ b/lib/libcurses/initscr.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)initscr.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <signal.h>
+#include <stdlib.h>
+
+/*
+ * initscr --
+ *	Initialize the current and standard screen.
+ */
+WINDOW *
+initscr()
+{
+	register char *sp;
+
+#ifdef DEBUG
+	__CTRACE("initscr\n");
+#endif
+	__echoit = 1;
+        __pfast = __rawmode = __noqch = 0;
+
+	if (gettmode() == ERR)
+		return (NULL);
+
+	/*
+	 * If My_term is set, or can't find a terminal in the environment,
+	 * use Def_term.
+	 */
+	if (My_term || (sp = getenv("TERM")) == NULL)
+		sp = Def_term;
+	if (setterm(sp) == ERR)
+		return (NULL);
+
+	/* Need either homing or cursor motion for refreshes */
+	if (!HO && !CM) 
+		return (NULL);
+
+	if (curscr != NULL)
+		delwin(curscr);
+	if ((curscr = newwin(LINES, COLS, 0, 0)) == ERR)
+		return (NULL);
+	clearok(curscr, 1);
+
+	if (stdscr != NULL)
+		delwin(stdscr);
+	if ((stdscr = newwin(LINES, COLS, 0, 0)) == ERR) {
+		delwin(curscr);
+		return (NULL);
+	}
+
+	__set_stophandler();
+
+#ifdef DEBUG
+	__CTRACE("initscr: LINES = %d, COLS = %d\n", LINES, COLS);
+#endif
+	__startwin();
+
+	return (stdscr);
+}
diff --git a/lib/libcurses/insch.c b/lib/libcurses/insch.c
new file mode 100644
index 0000000..41b7383
--- /dev/null
+++ b/lib/libcurses/insch.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)insch.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+/*
+ * winsch --
+ *	Do an insert-char on the line, leaving (cury, curx) unchanged.
+ */
+int
+winsch(win, ch)
+	register WINDOW *win;
+	int ch;
+{
+
+	register __LDATA *end, *temp1, *temp2;
+
+	end = &win->lines[win->cury]->line[win->curx];
+	temp1 = &win->lines[win->cury]->line[win->maxx - 1];
+	temp2 = temp1 - 1;
+	while (temp1 > end) {
+		(void)memcpy(temp1, temp2, sizeof(__LDATA));
+		temp1--, temp2--;
+	}
+	temp1->ch = ch;
+	temp1->attr &= ~__STANDOUT;
+	__touchline(win, win->cury, win->curx, win->maxx - 1, 0);
+	if (win->cury == LINES - 1 && 
+	    (win->lines[LINES - 1]->line[COLS - 1].ch != ' ' ||
+	    win->lines[LINES -1]->line[COLS - 1].attr != 0))
+		if (win->flags & __SCROLLOK) {
+			wrefresh(win);
+			scroll(win);
+			win->cury--;
+		} else
+			return (ERR);
+	return (OK);
+}
diff --git a/lib/libcurses/insertln.c b/lib/libcurses/insertln.c
new file mode 100644
index 0000000..87a61ee
--- /dev/null
+++ b/lib/libcurses/insertln.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)insertln.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+/*
+ * winsertln --
+ *	Do an insert-line on the window, leaving (cury, curx) unchanged.
+ */
+int
+winsertln(win)
+	register WINDOW *win;
+{
+
+	register int y, i;
+	register __LINE *temp;
+
+#ifdef DEBUG
+	__CTRACE("insertln: (%0.2o)\n", win);
+#endif
+	if (win->orig == NULL)
+		temp = win->lines[win->maxy - 1];
+	for (y = win->maxy - 1; y > win->cury; --y) {
+		win->lines[y]->flags &= ~__ISPASTEOL;
+		win->lines[y - 1]->flags &= ~__ISPASTEOL;
+		if (win->orig == NULL)
+			win->lines[y] = win->lines[y - 1];
+		else
+			(void)memcpy(win->lines[y]->line, 
+			    win->lines[y - 1]->line, 
+			    win->maxx * __LDATASIZE);
+		__touchline(win, y, 0, win->maxx - 1, 0);
+	}
+	if (win->orig == NULL)
+		win->lines[y] = temp;
+	else
+		temp = win->lines[y];
+	for(i = 0; i < win->maxx; i++) {
+		temp->line[i].ch = ' ';
+		temp->line[i].attr = 0;
+	}
+	__touchline(win, y, 0, win->maxx - 1, 0);
+	if (win->orig == NULL)
+		__id_subwins(win);
+	return (OK);
+}
diff --git a/lib/libcurses/longname.c b/lib/libcurses/longname.c
new file mode 100644
index 0000000..fd54630
--- /dev/null
+++ b/lib/libcurses/longname.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)longname.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+/*
+ * longname --
+ *	Fill in "def" with the long name of the terminal.
+ */
+char *
+longname(bp, def)
+	register char *bp, *def;
+{
+	register char *cp;
+
+	while (*bp && *bp != ':' && *bp != '|')
+		bp++;
+	if (*bp == '|') {
+		for (cp = def, ++bp; *bp && *bp != ':' && *bp != '|';)
+			*cp++ = *bp++;
+		*cp = '\0';
+	}
+	return (def);
+}
diff --git a/lib/libcurses/move.c b/lib/libcurses/move.c
new file mode 100644
index 0000000..60a377b
--- /dev/null
+++ b/lib/libcurses/move.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)move.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * wmove --
+ *	Moves the cursor to the given point.
+ */
+int
+wmove(win, y, x)
+	register WINDOW *win;
+	register int y, x;
+{
+
+#ifdef DEBUG
+	__CTRACE("wmove: (%d, %d)\n", y, x);
+#endif
+	if (x < 0 || y < 0)
+		return (ERR);
+	if (x >= win->maxx || y >= win->maxy)
+		return (ERR);
+	win->curx = x;
+	win->lines[win->cury]->flags &= ~__ISPASTEOL;
+	win->cury = y;
+	win->lines[y]->flags &= ~__ISPASTEOL;
+	return (OK);
+}
diff --git a/lib/libcurses/mvwin.c b/lib/libcurses/mvwin.c
new file mode 100644
index 0000000..5699295
--- /dev/null
+++ b/lib/libcurses/mvwin.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)mvwin.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+/*
+ * mvwin --
+ *	Relocate the starting position of a window.
+ */
+int
+mvwin(win, by, bx)
+	register WINDOW *win;
+	register int by, bx;
+{
+	register WINDOW *orig;
+	register int dy, dx;
+
+	if (by + win->maxy > LINES || bx + win->maxx > COLS)
+		return (ERR);
+	dy = by - win->begy;
+	dx = bx - win->begx;
+	orig = win->orig;
+	if (orig == NULL) {
+		orig = win;
+		do {
+			win->begy += dy;
+			win->begx += dx;
+			__swflags(win);
+			win = win->nextp;
+		} while (win != orig);
+	} else {
+		if (by < orig->begy || win->maxy + dy > orig->maxy)
+			return (ERR);
+		if (bx < orig->begx || win->maxx + dx > orig->maxx)
+			return (ERR);
+		win->begy = by;
+		win->begx = bx;
+		__swflags(win);
+		__set_subwin(orig, win);
+	}
+	__touchwin(win);
+	return (OK);
+}
diff --git a/lib/libcurses/newwin.c b/lib/libcurses/newwin.c
new file mode 100644
index 0000000..a2f577a
--- /dev/null
+++ b/lib/libcurses/newwin.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)newwin.c	8.1 (Berkeley) 7/20/93";
+#endif	/* not lint */
+
+#include <curses.h>
+#include <stdlib.h>
+
+#undef	nl		/* Don't need it here, and it interferes. */
+
+static WINDOW 	*__makenew __P((int, int, int, int, int));
+
+void	 __set_subwin __P((WINDOW *, WINDOW *));
+
+/*
+ * newwin --
+ *	Allocate space for and set up defaults for a new window.
+ */
+WINDOW *
+newwin(nl, nc, by, bx)
+	register int nl, nc, by, bx;
+{
+	register WINDOW *win;
+	register __LINE *lp;
+	register int  i, j;
+	register __LDATA *sp;
+
+	if (nl == 0)
+		nl = LINES - by;
+	if (nc == 0)
+		nc = COLS - bx;
+
+	if ((win = __makenew(nl, nc, by, bx, 0)) == NULL)
+		return (NULL);
+
+	win->nextp = win;
+	win->ch_off = 0;
+	win->orig = NULL;
+
+#ifdef DEBUG
+	__CTRACE("newwin: win->ch_off = %d\n", win->ch_off);
+#endif
+
+	for (i = 0; i < nl; i++) {
+		lp = win->lines[i];
+		lp->flags = 0;
+		for (sp = lp->line, j = 0; j < nc; j++, sp++) {
+			sp->ch = ' ';
+			sp->attr = 0;
+		}
+		lp->hash = __hash((char *) lp->line, nc * __LDATASIZE);
+	}
+	return (win);
+}
+
+WINDOW *
+subwin(orig, nl, nc, by, bx)
+	register WINDOW *orig;
+	register int by, bx, nl, nc;
+{
+	int i;
+	__LINE *lp;
+	register WINDOW *win;
+
+	/* Make sure window fits inside the original one. */
+#ifdef	DEBUG
+	__CTRACE("subwin: (%0.2o, %d, %d, %d, %d)\n", orig, nl, nc, by, bx);
+#endif
+	if (by < orig->begy || bx < orig->begx
+	    || by + nl > orig->maxy + orig->begy
+	    || bx + nc > orig->maxx + orig->begx)
+		return (NULL);
+	if (nl == 0)
+		nl = orig->maxy + orig->begy - by;
+	if (nc == 0)
+		nc = orig->maxx + orig->begx - bx;
+	if ((win = __makenew(nl, nc, by, bx, 1)) == NULL)
+		return (NULL);
+	win->nextp = orig->nextp;
+	orig->nextp = win;
+	win->orig = orig;
+
+	/* Initialize flags here so that refresh can also use __set_subwin. */
+	for (lp = win->lspace, i = 0; i < win->maxy; i++, lp++)
+		lp->flags = 0;
+	__set_subwin(orig, win);
+	return (win);
+}
+
+/*
+ * This code is shared with mvwin().
+ */
+void
+__set_subwin(orig, win)
+	register WINDOW *orig, *win;
+{
+	int i;
+	__LINE *lp, *olp;
+
+	win->ch_off = win->begx - orig->begx;
+	/*  Point line pointers to line space. */
+	for (lp = win->lspace, i = 0; i < win->maxy; i++, lp++) {
+		win->lines[i] = lp;
+		olp = orig->lines[i + win->begy];
+		lp->line = &olp->line[win->begx];
+		lp->firstchp = &olp->firstch;
+		lp->lastchp = &olp->lastch;
+		lp->hash = __hash((char *) lp->line, win->maxx * __LDATASIZE);
+	}
+
+#ifdef DEBUG
+	__CTRACE("__set_subwin: win->ch_off = %d\n", win->ch_off);
+#endif
+}
+
+/*
+ * __makenew --
+ *	Set up a window buffer and returns a pointer to it.
+ */
+static WINDOW *
+__makenew(nl, nc, by, bx, sub)
+	register int by, bx, nl, nc;
+	int sub;
+{
+	register WINDOW *win;
+	register __LINE *lp;
+	int i;
+	
+
+#ifdef	DEBUG
+	__CTRACE("makenew: (%d, %d, %d, %d)\n", nl, nc, by, bx);
+#endif
+	if ((win = malloc(sizeof(*win))) == NULL)
+		return (NULL);
+#ifdef DEBUG
+	__CTRACE("makenew: nl = %d\n", nl);
+#endif
+
+	/* 
+	 * Set up line pointer array and line space.
+	 */
+	if ((win->lines = malloc (nl * sizeof(__LINE *))) == NULL) {
+		free(win);
+		return NULL;
+	}
+	if ((win->lspace = malloc (nl * sizeof(__LINE))) == NULL) {
+		free (win);
+		free (win->lines);
+		return NULL;
+	}
+
+	/* Don't allocate window and line space if it's a subwindow */
+	if (!sub) {
+		/*
+		 * Allocate window space in one chunk.
+		 */
+		if ((win->wspace = 
+		    malloc(nc * nl * sizeof(__LDATA))) == NULL) {
+			free(win->lines);
+			free(win->lspace);
+			free(win);
+			return NULL;
+		}
+		
+		/*
+		 * Point line pointers to line space, and lines themselves into
+		 * window space.
+		 */
+		for (lp = win->lspace, i = 0; i < nl; i++, lp++) {
+			win->lines[i] = lp;
+			lp->line = &win->wspace[i * nc];
+			lp->firstchp = &lp->firstch;
+			lp->lastchp = &lp->lastch;
+			lp->firstch = 0;
+			lp->lastch = 0;
+		}
+	}
+#ifdef DEBUG
+	__CTRACE("makenew: nc = %d\n", nc);
+#endif
+	win->cury = win->curx = 0;
+	win->maxy = nl;
+	win->maxx = nc;
+
+	win->begy = by;
+	win->begx = bx;
+	win->flags = 0;
+	__swflags(win);
+#ifdef DEBUG
+	__CTRACE("makenew: win->flags = %0.2o\n", win->flags);
+	__CTRACE("makenew: win->maxy = %d\n", win->maxy);
+	__CTRACE("makenew: win->maxx = %d\n", win->maxx);
+	__CTRACE("makenew: win->begy = %d\n", win->begy);
+	__CTRACE("makenew: win->begx = %d\n", win->begx);
+#endif
+	return (win);
+}
+
+void
+__swflags(win)
+	register WINDOW *win;
+{
+	win->flags &= 
+	    ~(__ENDLINE | __FULLLINE | __FULLWIN | __SCROLLWIN | __LEAVEOK);
+	if (win->begx + win->maxx == COLS) {
+		win->flags |= __ENDLINE;
+		if (win->begx == 0) {
+			if (AL && DL)
+				win->flags |= __FULLLINE;
+			if (win->maxy == LINES && win->begy == 0)
+				win->flags |= __FULLWIN;
+		}
+		if (win->begy + win->maxy == LINES)
+			win->flags |= __SCROLLWIN;
+	}
+}
diff --git a/lib/libcurses/overlay.c b/lib/libcurses/overlay.c
new file mode 100644
index 0000000..77248db
--- /dev/null
+++ b/lib/libcurses/overlay.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)overlay.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <ctype.h>
+#include <curses.h>
+
+/*
+ * overlay --
+ *	Writes win1 on win2 non-destructively.
+ */
+int
+overlay(win1, win2)
+	register WINDOW *win1, *win2;
+{
+
+	register int x, y, y1, y2, endy, endx, starty, startx;
+	register __LDATA *sp, *end;
+
+#ifdef DEBUG
+	__CTRACE("overlay: (%0.2o, %0.2o);\n", win1, win2);
+#endif
+	starty = max(win1->begy, win2->begy);
+	startx = max(win1->begx, win2->begx);
+	endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx);
+	endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx);
+#ifdef DEBUG
+	__CTRACE("overlay: from (%d,%d) to (%d,%d)\n",
+	    starty, startx, endy, endx);
+#endif
+	if (starty >= endy || startx >= endx)
+		return (OK);
+	y1 = starty - win1->begy;
+	y2 = starty - win2->begy;
+	for (y = starty; y < endy; y++, y1++, y2++) {
+		end = &win1->lines[y1]->line[endx - win1->begx];
+		x = startx - win2->begx;
+		for (sp = &win1->lines[y1]->line[startx - win1->begx]; 
+		     sp < end; sp++) {
+			if (!isspace(sp->ch)) {
+				wmove(win2, y2, x);
+				__waddch(win2, sp);
+			}
+			x++;
+		}
+	}
+	return (OK);
+}
diff --git a/lib/libcurses/overwrite.c b/lib/libcurses/overwrite.c
new file mode 100644
index 0000000..55c2b5e
--- /dev/null
+++ b/lib/libcurses/overwrite.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)overwrite.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <ctype.h>
+#include <curses.h>
+#include <string.h>
+
+/*
+ * overwrite --
+ *	Writes win1 on win2 destructively.
+ */
+int
+overwrite(win1, win2)
+	register WINDOW *win1, *win2;
+{
+	register int x, y, endy, endx, starty, startx;
+
+#ifdef DEBUG
+	__CTRACE("overwrite: (%0.2o, %0.2o);\n", win1, win2);
+#endif
+	starty = max(win1->begy, win2->begy);
+	startx = max(win1->begx, win2->begx);
+	endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx);
+	endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx);
+	if (starty >= endy || startx >= endx)
+		return (OK);
+#ifdef DEBUG
+	__CTRACE("overwrite: from (%d, %d) to (%d, %d)\n",
+	    starty, startx, endy, endx);
+#endif
+	x = endx - startx;
+	for (y = starty; y < endy; y++) {
+		(void)memcpy(
+		    &win2->lines[y - win2->begy]->line[startx - win2->begx], 
+		    &win1->lines[y - win1->begy]->line[startx - win1->begx],
+		    x * __LDATASIZE);
+		__touchline(win2, y, startx - win2->begx, endx - win2->begx,
+		    0);
+	}
+	return (OK);
+}
diff --git a/lib/libcurses/printw.c b/lib/libcurses/printw.c
new file mode 100644
index 0000000..bc34ce6
--- /dev/null
+++ b/lib/libcurses/printw.c
@@ -0,0 +1,200 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)printw.c	8.2 (Berkeley) 10/5/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+/*
+ * printw and friends.
+ *
+ * These routines make nonportable assumptions about varargs if __STDC__
+ * is not in effect.
+ */
+
+static int __winwrite __P((void *, const char *, int));
+
+/*
+ * printw --
+ *	Printf on the standard screen.
+ */
+int
+#ifdef __STDC__
+printw(const char *fmt, ...)
+#else
+printw(fmt, va_alist)
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwprintw(stdscr, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * wprintw --
+ *	Printf on the given window.
+ */
+int
+#ifdef __STDC__
+wprintw(WINDOW * win, const char *fmt, ...)
+#else
+wprintw(win, fmt, va_alist)
+	WINDOW *win;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwprintw(win, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * mvprintw, mvwprintw --
+ *	Implement the mvprintw commands.  Due to the variable number of
+ *	arguments, they cannot be macros.  Sigh....
+ */
+int
+#ifdef __STDC__
+mvprintw(register int y, register int x, const char *fmt, ...)
+#else
+mvprintw(y, x, fmt, va_alist)
+	register int y, x;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	if (move(y, x) != OK)
+		return (ERR);
+	ret = vwprintw(stdscr, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+int
+#ifdef __STDC__
+mvwprintw(register WINDOW * win, register int y, register int x,
+    const char *fmt, ...)
+#else
+mvwprintw(win, y, x, fmt, va_alist)
+	register WINDOW *win;
+	register int y, x;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	if (wmove(win, y, x) != OK)
+		return (ERR);
+
+	ret = vwprintw(win, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * Internal write-buffer-to-window function.
+ */
+static int
+__winwrite(cookie, buf, n)
+	void *cookie;
+	register const char *buf;
+	int n;
+{
+	register WINDOW *win;
+	register int c;
+
+	for (c = n, win = cookie; --c >= 0;)
+		if (waddch(win, *buf++) == ERR)
+			return (-1);
+	return (n);
+}
+
+/*
+ * vwprintw --
+ *	This routine actually executes the printf and adds it to the window.
+ */
+int
+vwprintw(win, fmt, ap)
+	WINDOW *win;
+	const char *fmt;
+	va_list ap;
+{
+	FILE *f;
+
+	if ((f = funopen(win, NULL, __winwrite, NULL, NULL)) == NULL)
+		return (ERR);
+	(void)vfprintf(f, fmt, ap);
+	return (fclose(f) ? ERR : OK);
+}
diff --git a/lib/libcurses/putchar.c b/lib/libcurses/putchar.c
new file mode 100644
index 0000000..7309bde
--- /dev/null
+++ b/lib/libcurses/putchar.c
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)putchar.c	8.1 (Berkeley) 6/4/93";
+#endif	/* not lint */
+
+#include <curses.h>
+
+void
+__cputchar(ch)
+	int ch;
+{
+
+#ifdef DEBUG
+	__CTRACE("__cputchar: %s\n", unctrl(ch));
+#endif
+	(void)putchar(ch);
+}
diff --git a/lib/libcurses/refresh.c b/lib/libcurses/refresh.c
new file mode 100644
index 0000000..1cd62f0
--- /dev/null
+++ b/lib/libcurses/refresh.c
@@ -0,0 +1,723 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)refresh.c	8.1 (Berkeley) 7/20/93";
+#endif /* not lint */
+
+#include <curses.h>
+#include <string.h>
+
+static int curwin;
+static short ly, lx;
+
+static void	domvcur __P((int, int, int, int));
+static int	makech __P((WINDOW *, int));
+static void	quickch __P((WINDOW *));	
+static void	scrolln __P((WINDOW *, int, int, int, int, int));
+
+/*
+ * wrefresh --
+ *	Make the current screen look like "win" over the area coverd by
+ *	win.
+ */
+int
+wrefresh(win)
+	register WINDOW *win;
+{
+	register __LINE *wlp;
+	register int retval;
+	register short wy;
+	int dnum;
+	
+	/* Initialize loop parameters. */
+	ly = curscr->cury;
+	lx = curscr->curx;
+	wy = 0;
+	curwin = (win == curscr);
+
+	if (!curwin)
+		for (wy = 0; wy < win->maxy; wy++) {
+			wlp = win->lines[wy];
+			if (wlp->flags & __ISDIRTY)
+				wlp->hash = 
+				   __hash((char *) wlp->line, win->maxx * __LDATASIZE);
+		}
+
+	if (win->flags & __CLEAROK || curscr->flags & __CLEAROK || curwin) {
+		if ((win->flags & __FULLWIN) || curscr->flags & __CLEAROK) {
+			tputs(CL, 0, __cputchar);
+			ly = 0;
+			lx = 0;
+			if (!curwin) {
+				curscr->flags &= ~__CLEAROK;
+				curscr->cury = 0;
+				curscr->curx = 0;
+				werase(curscr);
+			}
+			__touchwin(win);
+		}
+		win->flags &= ~__CLEAROK;
+	}
+	if (!CA) {
+		if (win->curx != 0)
+			putchar('\n');
+		if (!curwin)
+			werase(curscr);
+	}
+#ifdef DEBUG
+	__CTRACE("wrefresh: (%0.2o): curwin = %d\n", win, curwin);
+	__CTRACE("wrefresh: \tfirstch\tlastch\n");
+#endif
+
+#ifndef NOQCH
+	if ((win->flags & __FULLWIN) && !curwin) {
+		/*
+		 * Invoke quickch() only if more than a quarter of the lines
+		 * in the window are dirty.
+		 */
+		for (wy = 0, dnum = 0; wy < win->maxy; wy++)
+			if (win->lines[wy]->flags & (__ISDIRTY | __FORCEPAINT))
+				dnum++;
+		if (!__noqch && dnum > (int) win->maxy / 4)
+			quickch(win);
+	}
+#endif
+
+#ifdef DEBUG
+{ int i, j;
+		__CTRACE("#####################################\n");
+		for (i = 0; i < curscr->maxy; i++) {
+			__CTRACE("C: %d:", i);
+			__CTRACE(" 0x%x \n", curscr->lines[i]->hash);
+			for (j = 0; j < curscr->maxx; j++) 
+				__CTRACE("%c", 
+			           curscr->lines[i]->line[j].ch);
+			__CTRACE("\n");
+			for (j = 0; j < curscr->maxx; j++) 
+				__CTRACE("%x", 
+			           curscr->lines[i]->line[j].attr);
+			__CTRACE("\n");
+			__CTRACE("W: %d:", i);
+			__CTRACE(" 0x%x \n", win->lines[i]->hash);
+			__CTRACE(" 0x%x ", win->lines[i]->flags);
+			for (j = 0; j < win->maxx; j++) 
+				__CTRACE("%c", 
+			           win->lines[i]->line[j].ch);
+			__CTRACE("\n");
+			for (j = 0; j < win->maxx; j++) 
+				__CTRACE("%x", 
+			           win->lines[i]->line[j].attr);
+			__CTRACE("\n");
+		}
+}
+#endif /* DEBUG */
+
+	for (wy = 0; wy < win->maxy; wy++) {
+#ifdef DEBUG
+		__CTRACE("%d\t%d\t%d\n",
+		    wy, *win->lines[wy]->firstchp, *win->lines[wy]->lastchp);
+#endif
+		if (!curwin)
+			curscr->lines[wy]->hash = win->lines[wy]->hash;
+		if (win->lines[wy]->flags & (__ISDIRTY | __FORCEPAINT)) {
+			if (makech(win, wy) == ERR)
+				return (ERR);
+			else {
+				if (*win->lines[wy]->firstchp >= win->ch_off)
+					*win->lines[wy]->firstchp = win->maxx +
+					    win->ch_off;
+				if (*win->lines[wy]->lastchp < win->maxx +
+				    win->ch_off)
+					*win->lines[wy]->lastchp = win->ch_off;
+				if (*win->lines[wy]->lastchp < 
+				    *win->lines[wy]->firstchp) {
+#ifdef DEBUG
+					__CTRACE("wrefresh: line %d notdirty \n", wy);
+#endif
+					win->lines[wy]->flags &= ~__ISDIRTY;
+				}
+			}
+
+		}
+#ifdef DEBUG
+		__CTRACE("\t%d\t%d\n", *win->lines[wy]->firstchp, 
+			*win->lines[wy]->lastchp);
+#endif
+	}
+	
+#ifdef DEBUG
+	__CTRACE("refresh: ly=%d, lx=%d\n", ly, lx);
+#endif
+
+	if (win == curscr)
+		domvcur(ly, lx, win->cury, win->curx);
+	else {
+		if (win->flags & __LEAVEOK) {
+			curscr->cury = ly;
+			curscr->curx = lx;
+			ly -= win->begy;
+			lx -= win->begx;
+			if (ly >= 0 && ly < win->maxy && lx >= 0 &&
+			    lx < win->maxx) {
+				win->cury = ly;
+				win->curx = lx;
+			} else
+				win->cury = win->curx = 0;
+		} else {
+			domvcur(ly, lx, win->cury + win->begy,
+			    win->curx + win->begx);
+			curscr->cury = win->cury + win->begy;
+			curscr->curx = win->curx + win->begx;
+		}
+	}
+	retval = OK;
+
+	(void)fflush(stdout);
+	return (retval);
+}
+
+/*
+ * makech --
+ *	Make a change on the screen.
+ */
+static int
+makech(win, wy)
+	register WINDOW *win;
+	int wy;
+{
+	static __LDATA blank = {' ', 0};
+	register int nlsp, clsp;		/* Last space in lines. */
+	register int wx, lch, y;
+	register __LDATA *nsp, *csp, *cp, *cep;
+	u_int force;
+	char *ce;
+
+	/* Is the cursor still on the end of the last line? */
+	if (wy > 0 && win->lines[wy - 1]->flags & __ISPASTEOL) {
+		domvcur(ly, lx, ly + 1, 0);
+		ly++;
+		lx = 0;
+	}
+	wx = *win->lines[wy]->firstchp - win->ch_off;
+	if (wx < 0)
+		wx = 0;
+	else if (wx >= win->maxx)
+		return (OK);
+	lch = *win->lines[wy]->lastchp - win->ch_off;
+	if (lch < 0)
+		return (OK);
+	else if (lch >= (int) win->maxx)
+		lch = win->maxx - 1;
+	y = wy + win->begy;
+
+	if (curwin)
+		csp = &blank;
+	else
+		csp = &curscr->lines[wy + win->begy]->line[wx + win->begx];
+
+	nsp = &win->lines[wy]->line[wx];
+	force = win->lines[wy]->flags & __FORCEPAINT;
+	win->lines[wy]->flags &= ~__FORCEPAINT;
+	if (CE && !curwin) {
+		for (cp = &win->lines[wy]->line[win->maxx - 1]; 
+		     cp->ch == ' ' && cp->attr == 0; cp--)
+			if (cp <= win->lines[wy]->line)
+				break;
+		nlsp = cp - win->lines[wy]->line;
+	}
+	if (!curwin)
+		ce = CE;
+	else
+		ce = NULL;
+
+	if (force) {
+		if (CM)
+			tputs(tgoto(CM, lx, ly), 0, __cputchar);
+		else {
+			tputs(HO, 0, __cputchar);
+			__mvcur(0, 0, ly, lx, 1);
+		}
+	}
+	while (wx <= lch) {
+		if (!force && memcmp(nsp, csp, sizeof(__LDATA)) == 0) {
+			if (wx <= lch) {
+				while (wx <= lch &&
+				       memcmp(nsp, csp, sizeof(__LDATA)) == 0) {
+					    nsp++;
+					    if (!curwin)
+						    csp++;
+					    ++wx;
+				    }
+				continue;
+			}
+			break;
+		}
+		domvcur(ly, lx, y, wx + win->begx);
+
+#ifdef DEBUG
+		__CTRACE("makech: 1: wx = %d, ly= %d, lx = %d, newy = %d, newx = %d, force =%d\n", 
+		    wx, ly, lx, y, wx + win->begx, force);
+#endif
+		ly = y;
+		lx = wx + win->begx;
+		while ((force || memcmp(nsp, csp, sizeof(__LDATA)) != 0) 
+		    && wx <= lch) {
+
+			if (ce != NULL && win->maxx + win->begx == 
+			    curscr->maxx && wx >= nlsp && nsp->ch == ' ') {
+				/* Check for clear to end-of-line. */
+				cep = &curscr->lines[wy]->line[win->maxx - 1];
+				while (cep->ch == ' ' && cep->attr == 0)
+					if (cep-- <= csp)
+						break;
+				clsp = cep - curscr->lines[wy]->line - 
+				       win->begx * __LDATASIZE;
+#ifdef DEBUG
+			__CTRACE("makech: clsp = %d, nlsp = %d\n", clsp, nlsp);
+#endif
+				if ((clsp - nlsp >= strlen(CE) 
+				    && clsp < win->maxx * __LDATASIZE) ||
+				    wy == win->maxy - 1) {
+#ifdef DEBUG
+					__CTRACE("makech: using CE\n");
+#endif
+					tputs(CE, 0, __cputchar);
+					lx = wx + win->begx;
+					while (wx++ <= clsp) {
+						csp->ch = ' ';
+						csp->attr = 0;
+						csp++;
+					}
+					return (OK);
+				}
+				ce = NULL;
+			}
+
+			/* Enter/exit standout mode as appropriate. */
+			if (SO && (nsp->attr & __STANDOUT) !=
+			    (curscr->flags & __WSTANDOUT)) {
+				if (nsp->attr & __STANDOUT) {
+					tputs(SO, 0, __cputchar);
+					curscr->flags |= __WSTANDOUT;
+				} else {
+					tputs(SE, 0, __cputchar);
+					curscr->flags &= ~__WSTANDOUT;
+				}
+			}
+
+			wx++;
+			if (wx >= win->maxx && wy == win->maxy - 1 && !curwin)
+				if (win->flags & __SCROLLOK) {
+					if (curscr->flags & __WSTANDOUT
+					    && win->flags & __ENDLINE)
+						if (!MS) {
+							tputs(SE, 0,
+							    __cputchar);
+							curscr->flags &=
+							    ~__WSTANDOUT;
+						}
+					if (!(win->flags & __SCROLLWIN)) {
+						if (!curwin) {
+							csp->attr = nsp->attr;
+							putchar(csp->ch = nsp->ch);
+						} else
+							putchar(nsp->ch);
+					}
+					if (wx + win->begx < curscr->maxx) {
+						domvcur(ly, wx + win->begx, 
+						    win->begy + win->maxy - 1,
+						    win->begx + win->maxx - 1);
+					}
+					ly = win->begy + win->maxy - 1;
+					lx = win->begx + win->maxx - 1;
+					return (OK);
+				} 
+			if (wx < win->maxx || wy < win->maxy - 1 || 
+			    !(win->flags & __SCROLLWIN)) {
+				if (!curwin) {
+					csp->attr = nsp->attr;
+					putchar(csp->ch = nsp->ch);
+					csp++;
+				} else 
+					putchar(nsp->ch);
+			}
+#ifdef DEBUG
+			__CTRACE("makech: putchar(%c)\n", nsp->ch & 0177);
+#endif
+			if (UC && (nsp->attr & __STANDOUT)) {
+				putchar('\b');
+				tputs(UC, 0, __cputchar);
+			}
+			nsp++;
+#ifdef DEBUG
+		__CTRACE("makech: 2: wx = %d, lx = %d\n", wx, lx);
+#endif
+		}
+		if (lx == wx + win->begx)	/* If no change. */
+			break;
+		lx = wx + win->begx;
+		if (lx >= COLS && AM)
+			lx = COLS - 1;
+		else if (wx >= win->maxx) {
+			domvcur(ly, lx, ly, win->maxx + win->begx - 1);
+			lx = win->maxx + win->begx - 1;
+		}
+
+#ifdef DEBUG
+		__CTRACE("makech: 3: wx = %d, lx = %d\n", wx, lx);
+#endif
+	}
+	return (OK);
+}
+
+/*
+ * domvcur --
+ *	Do a mvcur, leaving standout mode if necessary.
+ */
+static void
+domvcur(oy, ox, ny, nx)
+	int oy, ox, ny, nx;
+{
+	if (curscr->flags & __WSTANDOUT && !MS) {
+		tputs(SE, 0, __cputchar);
+		curscr->flags &= ~__WSTANDOUT;
+	}
+
+	__mvcur(oy, ox, ny, nx, 1);
+}
+
+/*
+ * Quickch() attempts to detect a pattern in the change of the window
+ * in order to optimize the change, e.g., scroll n lines as opposed to 
+ * repainting the screen line by line.
+ */
+
+static void
+quickch(win)
+	WINDOW *win;
+{
+#define THRESH		(int) win->maxy / 4
+
+	register __LINE *clp, *tmp1, *tmp2;
+	register int bsize, curs, curw, starts, startw, i, j;
+	int n, target, cur_period, bot, top, sc_region;
+	__LDATA buf[1024];
+	u_int blank_hash;
+
+	/* 
+	 * Find how many lines from the top of the screen are unchanged.
+	 */
+	for (top = 0; top < win->maxy; top++) 
+		if (win->lines[top]->flags & __FORCEPAINT ||
+		    win->lines[top]->hash != curscr->lines[top]->hash 
+		    || memcmp(win->lines[top]->line, 
+		    curscr->lines[top]->line, 
+		    win->maxx * __LDATASIZE) != 0)
+			break;
+		else
+			win->lines[top]->flags &= ~__ISDIRTY;
+       /*
+	* Find how many lines from bottom of screen are unchanged. 
+	*/
+	for (bot = win->maxy - 1; bot >= 0; bot--)
+		if (win->lines[bot]->flags & __FORCEPAINT ||
+		    win->lines[bot]->hash != curscr->lines[bot]->hash 
+		    || memcmp(win->lines[bot]->line, 
+		    curscr->lines[bot]->line, 
+		    win->maxx * __LDATASIZE) != 0)
+			break;
+		else
+			win->lines[bot]->flags &= ~__ISDIRTY;
+
+#ifdef NO_JERKINESS
+	/*
+	 * If we have a bottom unchanged region return.  Scrolling the
+	 * bottom region up and then back down causes a screen jitter.
+	 * This will increase the number of characters sent to the screen
+	 * but it looks better.
+	 */
+	if (bot < win->maxy - 1)
+		return;
+#endif /* NO_JERKINESS */
+
+	/*
+	 * Search for the largest block of text not changed.
+	 * Invariants of the loop:
+	 * - Startw is the index of the beginning of the examined block in win.
+         * - Starts is the index of the beginning of the examined block in 
+	 *    curscr.
+	 * - Curs is the index of one past the end of the exmined block in win.
+	 * - Curw is the index of one past the end of the exmined block in 
+	 *   curscr.
+	 * - bsize is the current size of the examined block.
+         */
+	for (bsize = bot - top; bsize >= THRESH; bsize--) {
+		for (startw = top; startw <= bot - bsize; startw++)
+			for (starts = top; starts <= bot - bsize; 
+			     starts++) {
+				for (curw = startw, curs = starts;
+				     curs < starts + bsize; curw++, curs++)
+					if (win->lines[curw]->flags &
+					    __FORCEPAINT ||
+					    (win->lines[curw]->hash !=
+					    curscr->lines[curs]->hash ||
+				            memcmp(win->lines[curw]->line, 
+					    curscr->lines[curs]->line, 
+					    win->maxx * __LDATASIZE) != 0))
+						break;
+				if (curs == starts + bsize)
+					goto done;
+			}
+	}
+ done:
+	/* Did not find anything */
+	if (bsize < THRESH)	
+		return;
+
+#ifdef DEBUG
+	__CTRACE("quickch:bsize=%d,starts=%d,startw=%d,curw=%d,curs=%d,top=%d,bot=%d\n", 
+		bsize, starts, startw, curw, curs, top, bot);
+#endif
+
+	/* 
+	 * Make sure that there is no overlap between the bottom and top 
+	 * regions and the middle scrolled block.
+	 */
+	if (bot < curs)
+		bot = curs - 1;
+	if (top > starts)
+		top = starts;
+
+	n = startw - starts;
+
+#ifdef DEBUG
+		__CTRACE("#####################################\n");
+		for (i = 0; i < curscr->maxy; i++) {
+			__CTRACE("C: %d:", i);
+			__CTRACE(" 0x%x \n", curscr->lines[i]->hash);
+			for (j = 0; j < curscr->maxx; j++) 
+				__CTRACE("%c", 
+			           curscr->lines[i]->line[j].ch);
+			__CTRACE("\n");
+			for (j = 0; j < curscr->maxx; j++) 
+				__CTRACE("%x", 
+			           curscr->lines[i]->line[j].attr);
+			__CTRACE("\n");
+			__CTRACE("W: %d:", i);
+			__CTRACE(" 0x%x \n", win->lines[i]->hash);
+			__CTRACE(" 0x%x ", win->lines[i]->flags);
+			for (j = 0; j < win->maxx; j++) 
+				__CTRACE("%c", 
+			           win->lines[i]->line[j].ch);
+			__CTRACE("\n");
+			for (j = 0; j < win->maxx; j++) 
+				__CTRACE("%x", 
+			           win->lines[i]->line[j].attr);
+			__CTRACE("\n");
+		}
+#endif 
+	
+	/* So we don't have to call __hash() each time */
+	for (i = 0; i < win->maxx; i++) {
+		buf[i].ch = ' ';
+		buf[i].attr = 0;
+	}
+	blank_hash = __hash((char *) buf, win->maxx * __LDATASIZE);
+
+	/*
+	 * Perform the rotation to maintain the consistency of curscr.
+	 * This is hairy since we are doing an *in place* rotation.
+	 * Invariants of the loop:
+	 * - I is the index of the current line.
+	 * - Target is the index of the target of line i.
+	 * - Tmp1 points to current line (i).
+	 * - Tmp2 and points to target line (target);
+	 * - Cur_period is the index of the end of the current period. 
+	 *   (see below).
+	 *
+	 * There are 2 major issues here that make this rotation non-trivial:
+	 * 1.  Scrolling in a scrolling region bounded by the top
+	 *     and bottom regions determined (whose size is sc_region).
+	 * 2.  As a result of the use of the mod function, there may be a 
+	 *     period introduced, i.e., 2 maps to 4, 4 to 6, n-2 to 0, and
+	 *     0 to 2, which then causes all odd lines not to be rotated.
+	 *     To remedy this, an index of the end ( = beginning) of the 
+	 *     current 'period' is kept, cur_period, and when it is reached, 
+	 *     the next period is started from cur_period + 1 which is 
+	 *     guaranteed not to have been reached since that would mean that
+	 *     all records would have been reached. (think about it...).
+	 * 
+	 * Lines in the rotation can have 3 attributes which are marked on the
+	 * line so that curscr is consistent with the visual screen.
+	 * 1.  Not dirty -- lines inside the scrolled block, top region or
+	 *                  bottom region.
+	 * 2.  Blank lines -- lines in the differential of the scrolling 
+	 *		      region adjacent to top and bot regions 
+	 *                    depending on scrolling direction.
+	 * 3.  Dirty line -- all other lines are marked dirty.
+	 */
+	sc_region = bot - top + 1;
+	i = top;
+	tmp1 = curscr->lines[top];
+	cur_period = top;
+	for (j = top; j <= bot; j++) {
+		target = (i - top + n + sc_region) % sc_region + top;
+		tmp2 = curscr->lines[target];
+		curscr->lines[target] = tmp1;
+		/* Mark block as clean and blank out scrolled lines. */
+		clp = curscr->lines[target];
+#ifdef DEBUG
+		__CTRACE("quickch: n=%d startw=%d curw=%d i = %d target=%d ",
+			n, startw, curw, i, target);
+#endif
+		if ((target >= startw && target < curw) || target < top 
+		    || target > bot) {
+#ifdef DEBUG
+			__CTRACE("-- notdirty");
+#endif
+			win->lines[target]->flags &= ~__ISDIRTY;
+		} else if ((n > 0 && target >= top && target < top + n) ||
+		           (n < 0 && target <= bot && target > bot + n)) {
+			if (clp->hash != blank_hash ||  memcmp(clp->line, 
+			    buf, win->maxx * __LDATASIZE) !=0) {
+				(void)memcpy(clp->line,  buf,
+				    win->maxx * __LDATASIZE);
+#ifdef DEBUG
+				__CTRACE("-- blanked out: dirty");
+#endif
+				clp->hash = blank_hash;
+				__touchline(win, target, 0, win->maxx - 1, 0);
+			} else {
+				__touchline(win, target, 0, win->maxx - 1, 0);
+#ifdef DEBUG
+				__CTRACE(" -- blank line already: dirty");
+#endif
+			}
+		} else {
+#ifdef DEBUG
+			__CTRACE(" -- dirty");
+#endif
+			__touchline(win, target, 0, win->maxx - 1, 0);
+		}
+#ifdef DEBUG
+		__CTRACE("\n");
+#endif
+		if (target == cur_period) {
+			i = target + 1;
+			tmp1 = curscr->lines[i];
+			cur_period = i;
+		} else {
+			tmp1 = tmp2;
+			i = target;
+		}
+	}
+#ifdef DEBUG
+		__CTRACE("$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$\n");
+		for (i = 0; i < curscr->maxy; i++) {
+			__CTRACE("C: %d:", i);
+			for (j = 0; j < curscr->maxx; j++) 
+				__CTRACE("%c", 
+			           curscr->lines[i]->line[j].ch);
+			__CTRACE("\n");
+			__CTRACE("W: %d:", i);
+			for (j = 0; j < win->maxx; j++) 
+				__CTRACE("%c", 
+			           win->lines[i]->line[j].ch);
+			__CTRACE("\n");
+		}
+#endif
+	if (n != 0) {
+		WINDOW *wp;
+		scrolln(win, starts, startw, curs, bot, top);
+		/*
+		 * Need to repoint any subwindow lines to the rotated
+		 * line structured. 
+		 */
+		for (wp = win->nextp; wp != win; wp = wp->nextp)
+			__set_subwin(win, wp);
+	}
+}
+
+/*
+ * Scrolln performs the scroll by n lines, where n is starts - startw.
+ */
+static void
+scrolln(win, starts, startw, curs, bot, top)
+	WINDOW *win;
+	int starts, startw, curs, bot, top;
+{
+	int i, oy, ox, n;
+
+	oy = curscr->cury;
+	ox = curscr->curx;
+	n = starts - startw;
+
+	if (n > 0) {
+		__mvcur(oy, ox, top, 0, 1);
+		/* Scroll up the block */
+		if (DL)
+			tputs(__tscroll(DL, n), 0, __cputchar);
+		else
+			for(i = 0; i < n; i++)
+				tputs(dl, 0, __cputchar);
+
+		/* 
+		 * Push down the bottom region.
+		 */
+		__mvcur(top, 0, bot - n + 1, 0, 1);
+		if (AL) 
+			tputs(__tscroll(AL, n), 0, __cputchar);
+		else
+			for(i = 0; i < n; i++)
+				tputs(al, 0, __cputchar);
+		__mvcur(bot - n + 1, 0, oy, ox, 1);
+	} else {
+		/* Preserve the bottom lines */
+		__mvcur(oy, ox, bot + n + 1, 0, 1);	/* n < 0 */
+		if (DL)
+			tputs(__tscroll(DL, -n), 0, __cputchar);
+		else
+		       	for(i = n; i < 0; i++)
+				tputs(dl, 0, __cputchar);
+		__mvcur(bot + n + 1, 0, top, 0, 1);
+
+		/* Scroll the block down */
+		if (AL) 
+			tputs(__tscroll(AL, -n), 0, __cputchar);
+		else
+			for(i = n; i < 0; i++)
+				tputs(al, 0, __cputchar);
+		__mvcur(top, 0, oy, ox, 1);
+	}		
+}
diff --git a/lib/libcurses/scanw.c b/lib/libcurses/scanw.c
new file mode 100644
index 0000000..ddd1ba9
--- /dev/null
+++ b/lib/libcurses/scanw.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)scanw.c	8.2 (Berkeley) 10/5/93";
+#endif	/* not lint */
+
+/*
+ * scanw and friends.
+ */
+
+#include <curses.h>
+
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+/*
+ * scanw --
+ *	Implement a scanf on the standard screen.
+ */
+int
+#ifdef __STDC__
+scanw(const char *fmt, ...)
+#else
+scanw(fmt, va_alist)
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwscanw(stdscr, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * wscanw --
+ *	Implements a scanf on the given window.
+ */
+int
+#ifdef __STDC__
+wscanw(WINDOW *win, const char *fmt, ...)
+#else
+wscanw(win, fmt, va_alist)
+	WINDOW *win;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwscanw(win, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * mvscanw, mvwscanw -- 
+ *	Implement the mvscanw commands.  Due to the variable number of
+ *	arguments, they cannot be macros.  Another sigh....
+ */
+int
+#ifdef __STDC__
+mvscanw(register int y, register int x, const char *fmt,...)
+#else
+mvscanw(y, x, fmt, va_alist)
+	register int y, x;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+	if (move(y, x) != OK)
+		return (ERR);
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwscanw(stdscr, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+int
+#ifdef __STDC__
+mvwscanw(register WINDOW * win, register int y, register int x,
+    const char *fmt, ...)
+#else
+mvwscanw(win, y, x, fmt, va_alist)
+	register WINDOW *win;
+	register int y, x;
+	char *fmt;
+	va_dcl
+#endif
+{
+	va_list ap;
+	int ret;
+
+	if (move(y, x) != OK)
+		return (ERR);
+#ifdef __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	ret = vwscanw(win, fmt, ap);
+	va_end(ap);
+	return (ret);
+}
+
+/*
+ * vwscanw --
+ *	This routine actually executes the scanf from the window.
+ */
+int
+vwscanw(win, fmt, ap)
+	WINDOW *win;
+	const char *fmt;
+	va_list ap;
+{
+
+	char buf[1024];
+
+	return (wgetstr(win, buf) == OK ?
+	    vsscanf(buf, fmt, ap) : ERR);
+}
diff --git a/lib/libcurses/scroll.c b/lib/libcurses/scroll.c
new file mode 100644
index 0000000..1b03ecc
--- /dev/null
+++ b/lib/libcurses/scroll.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)scroll.c	8.2 (Berkeley) 1/9/94";
+#endif /* not lint */
+
+#include <curses.h>
+
+/*
+ * scroll --
+ *	Scroll the window up a line.
+ */
+int
+scroll(win)
+	register WINDOW *win;
+{
+	register int oy, ox;
+
+#ifdef DEBUG
+	__CTRACE("scroll: (%0.2o)\n", win);
+#endif
+
+	if (!(win->flags & __SCROLLOK))
+		return (ERR);
+
+	getyx(win, oy, ox);
+	wmove(win, 0, 0);
+	wdeleteln(win);
+	wmove(win, oy, ox);
+
+	if (win == curscr) {
+		putchar('\n');
+		if (!NONL)
+			win->curx = 0;
+#ifdef DEBUG
+		__CTRACE("scroll: win == curscr\n");
+#endif
+	}
+	return (OK);
+}
diff --git a/lib/libcurses/setterm.c b/lib/libcurses/setterm.c
new file mode 100644
index 0000000..f611ac7
--- /dev/null
+++ b/lib/libcurses/setterm.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)setterm.c	8.3 (Berkeley) 1/2/94";
+#endif /* not lint */
+
+#include <sys/ioctl.h>
+
+#include <curses.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void zap __P((void));
+
+static char	*sflags[] = {
+		/*       am   bs   da   eo   hc   in   mi   ms  */
+			&AM, &BS, &DA, &EO, &HC, &IN, &MI, &MS,
+		/*	 nc   ns   os   ul   xb   xn   xt   xs   xx  */
+			&NC, &NS, &OS, &UL, &XB, &XN, &XT, &XS, &XX
+		};
+
+static char	*_PC,
+		**sstrs[] = {
+		/*	 AL   bc   bt   cd   ce   cl   cm   cr   cs  */
+			&AL, &BC, &BT, &CD, &CE, &CL, &CM, &CR, &CS,
+		/*	 dc   DL   dm   do   ed   ei   k0   k1   k2  */
+			&DC, &DL, &DM, &DO, &ED, &EI, &K0, &K1, &K2,
+		/*	 k3   k4   k5   k6   k7   k8   k9   ho   ic  */
+			&K3, &K4, &K5, &K6, &K7, &K8, &K9, &HO, &IC,
+		/*	 im   ip   kd   ke   kh   kl   kr   ks   ku  */
+			&IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU,
+		/*	 ll   ma   nd   nl    pc   rc   sc   se   SF */
+			&LL, &MA, &ND, &NL, &_PC, &RC, &SC, &SE, &SF,
+		/*	 so   SR   ta   te   ti   uc   ue   up   us  */
+			&SO, &SR, &TA, &TE, &TI, &UC, &UE, &UP, &US,
+		/*	 vb   vs   ve   al   dl   sf   sr   AL	     */
+			&VB, &VS, &VE, &al, &dl, &sf, &sr, &AL_PARM, 
+		/*	 DL	   UP	     DO		 LE	     */
+			&DL_PARM, &UP_PARM, &DOWN_PARM, &LEFT_PARM, 
+		/*	 RI					     */
+			&RIGHT_PARM,
+		};
+
+static char	*aoftspace;		/* Address of _tspace for relocation */
+static char	tspace[2048];		/* Space for capability strings */
+
+char *ttytype;
+
+int
+setterm(type)
+	register char *type;
+{
+	static char genbuf[1024];
+	static char __ttytype[1024];
+	register int unknown;
+	struct winsize win;
+	char *p;
+
+#ifdef DEBUG
+	__CTRACE("setterm: (\"%s\")\nLINES = %d, COLS = %d\n",
+	    type, LINES, COLS);
+#endif
+	if (type[0] == '\0')
+		type = "xx";
+	unknown = 0;
+	if (tgetent(genbuf, type) != 1) {
+		unknown++;
+		strcpy(genbuf, "xx|dumb:");
+	}
+#ifdef DEBUG
+	__CTRACE("setterm: tty = %s\n", type);
+#endif
+
+	/* Try TIOCGWINSZ, and, if it fails, the termcap entry. */
+	if (ioctl(STDERR_FILENO, TIOCGWINSZ, &win) != -1 &&
+	    win.ws_row != 0 && win.ws_col != 0) {
+		LINES = win.ws_row;
+		COLS = win.ws_col;
+	}  else {
+		LINES = tgetnum("li");
+		COLS = tgetnum("co");
+	}
+
+	/* POSIX 1003.2 requires that the environment override. */
+	if ((p = getenv("LINES")) != NULL)
+		LINES = strtol(p, NULL, 10);
+	if ((p = getenv("COLUMNS")) != NULL)
+		COLS = strtol(p, NULL, 10);
+
+	/*
+	 * Want cols > 4, otherwise things will fail.
+	 */
+	if (COLS <= 4)
+		return (ERR);
+
+#ifdef DEBUG
+	__CTRACE("setterm: LINES = %d, COLS = %d\n", LINES, COLS);
+#endif
+	aoftspace = tspace;
+	zap();			/* Get terminal description. */
+
+	/* If we can't tab, we can't backtab, either. */
+	if (!GT)
+		BT = NULL;
+
+	/*
+	 * Test for cursor motion capbility.
+	 *
+	 * XXX
+	 * This is truly stupid -- tgoto returns "OOPS" if it can't
+	 * do cursor motions.
+	 */
+	if (tgoto(CM, 0, 0)[0] == 'O') {
+		CA = 0;
+		CM = 0;
+	} else
+		CA = 1;
+
+	PC = _PC ? _PC[0] : 0;
+	aoftspace = tspace;
+	ttytype = longname(genbuf, __ttytype);
+
+	if ((!AL && !al) || (!DL && !dl))
+		__noqch = 1;
+
+	return (unknown ? ERR : OK);
+}
+
+/*
+ * zap --
+ *	Gets all the terminal flags from the termcap database.
+ */
+static void
+zap()
+{
+	register char *namp, ***sp;
+	register char **fp;
+	char tmp[3];
+#ifdef DEBUG
+	register char	*cp;
+#endif
+	tmp[2] = '\0';
+
+	namp = "ambsdaeohcinmimsncnsosulxbxnxtxsxx";
+	fp = sflags;
+	do {
+		*tmp = *namp;
+		*(tmp + 1) = *(namp + 1);
+		*(*fp++) = tgetflag(tmp);
+#ifdef DEBUG
+		__CTRACE("2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
+#endif
+		namp += 2;
+		
+	} while (*namp);
+	namp = "ALbcbtcdceclcmcrcsdcDLdmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmandnlpcrcscseSFsoSRtatetiucueupusvbvsvealdlsfsrALDLUPDOLERI";
+	sp = sstrs;
+	do {
+		*tmp = *namp;
+		*(tmp + 1) = *(namp + 1);
+		*(*sp++) = tgetstr(tmp, &aoftspace);
+#ifdef DEBUG
+		__CTRACE("2.2s = %s", namp, *sp[-1] == NULL ? "NULL\n" : "\"");
+		if (*sp[-1] != NULL) {
+			for (cp = *sp[-1]; *cp; cp++)
+				__CTRACE("%s", unctrl(*cp));
+			__CTRACE("\"\n");
+		}
+#endif
+		namp += 2;
+	} while (*namp);
+	if (XS)
+		SO = SE = NULL;
+	else {
+		if (tgetnum("sg") > 0)
+			SO = NULL;
+		if (tgetnum("ug") > 0)
+			US = NULL;
+		if (!SO && US) {
+			SO = US;
+			SE = UE;
+		}
+	}
+}
+
+/*
+ * getcap --
+ *	Return a capability from termcap.
+ */
+char *
+getcap(name)
+	char *name;
+{
+	return (tgetstr(name, &aoftspace));
+}
diff --git a/lib/libcurses/standout.c b/lib/libcurses/standout.c
new file mode 100644
index 0000000..907184b
--- /dev/null
+++ b/lib/libcurses/standout.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)standout.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+#include <curses.h>
+
+/*
+ * wstandout
+ *	Enter standout mode.
+ */
+char *
+wstandout(win)
+	register WINDOW *win;
+{
+	if (!SO && !UC)
+		return (0);
+
+	win->flags |= __WSTANDOUT;
+	return (SO ? SO : UC);
+}
+
+/*
+ * wstandend --
+ *	Exit standout mode.
+ */
+char *
+wstandend(win)
+	register WINDOW *win;
+{
+	if (!SO && !UC)
+		return (0);
+
+	win->flags &= ~__WSTANDOUT;
+	return (SE ? SE : UC);
+}
diff --git a/lib/libcurses/toucholap.c b/lib/libcurses/toucholap.c
new file mode 100644
index 0000000..8924ebe
--- /dev/null
+++ b/lib/libcurses/toucholap.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)toucholap.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+#include <curses.h>
+
+/*
+ * touchoverlap --
+ *	Touch, on win2, the part that overlaps with win1.
+ */
+int
+touchoverlap(win1, win2)
+	register WINDOW *win1, *win2;
+{
+	register int y, endy, endx, starty, startx;
+
+#ifdef DEBUG
+	__CTRACE("touchoverlap: (%0.2o, %0.2o);\n", win1, win2);
+#endif
+	starty = max(win1->begy, win2->begy);
+	startx = max(win1->begx, win2->begx);
+	endy = min(win1->maxy + win1->begy, win2->maxy + win2->begx);
+	endx = min(win1->maxx + win1->begx, win2->maxx + win2->begx);
+#ifdef DEBUG
+	__CTRACE("touchoverlap: from (%d,%d) to (%d,%d)\n",
+	    starty, startx, endy, endx);
+	__CTRACE("touchoverlap: win1 (%d,%d) to (%d,%d)\n",
+	    win1->begy, win1->begx, win1->begy + win1->maxy,
+	    win1->begx + win1->maxx);
+	__CTRACE("touchoverlap: win2 (%d,%d) to (%d,%d)\n",
+	    win2->begy, win2->begx, win2->begy + win2->maxy,
+	    win2->begx + win2->maxx);
+#endif
+	if (starty >= endy || startx >= endx)
+		return (OK);
+	starty -= win2->begy;
+	startx -= win2->begx;
+	endy -= win2->begy;
+	endx -= win2->begx;
+	for (--endx, y = starty; y < endy; y++)
+		__touchline(win2, y, startx, endx, 0);
+	return (OK);
+}
+
diff --git a/lib/libcurses/touchwin.c b/lib/libcurses/touchwin.c
new file mode 100644
index 0000000..68fa785
--- /dev/null
+++ b/lib/libcurses/touchwin.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)touchwin.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+#include <curses.h>
+
+
+/*
+ * touchline --
+ *	Touch a given line.
+ */
+int
+touchline(win, y, sx, ex)
+	WINDOW *win;
+	register int y, sx, ex;
+{
+	return (__touchline(win, y, sx, ex, 1));
+}
+
+
+/*
+ * touchwin --
+ *	Make it look like the whole window has been changed.
+ */
+int
+touchwin(win)
+	register WINDOW *win;
+{
+	register int y, maxy;
+
+#ifdef DEBUG
+	__CTRACE("touchwin: (%0.2o)\n", win);
+#endif
+	maxy = win->maxy;
+	for (y = 0; y < maxy; y++)
+		__touchline(win, y, 0, win->maxx - 1, 1);
+	return (OK);
+}
+
+
+int
+__touchwin(win)
+	register WINDOW *win;
+{
+	register int y, maxy;
+
+#ifdef DEBUG
+	__CTRACE("touchwin: (%0.2o)\n", win);
+#endif
+	maxy = win->maxy;
+	for (y = 0; y < maxy; y++)
+		__touchline(win, y, 0, win->maxx - 1, 0);
+	return (OK);
+}
+
+int
+__touchline(win, y, sx, ex, force)
+	register WINDOW *win;
+	register int y, sx, ex;
+	int force;
+{
+#ifdef DEBUG
+	__CTRACE("touchline: (%0.2o, %d, %d, %d, %d)\n", win, y, sx, ex, force);
+	__CTRACE("touchline: first = %d, last = %d\n",
+	    *win->lines[y]->firstchp, *win->lines[y]->lastchp);
+#endif
+	if (force)
+		win->lines[y]->flags |= __FORCEPAINT;
+	sx += win->ch_off;
+	ex += win->ch_off;
+	if (!(win->lines[y]->flags & __ISDIRTY)) {
+		win->lines[y]->flags |= __ISDIRTY;
+		*win->lines[y]->firstchp = sx;
+		*win->lines[y]->lastchp = ex;
+	} else {
+		if (*win->lines[y]->firstchp > sx)
+			*win->lines[y]->firstchp = sx;
+		if (*win->lines[y]->lastchp < ex)
+			*win->lines[y]->lastchp = ex;
+	}
+#ifdef DEBUG
+	__CTRACE("touchline: first = %d, last = %d\n",
+	    *win->lines[y]->firstchp, *win->lines[y]->lastchp);
+#endif
+	return (OK);
+}
+
+
diff --git a/lib/libcurses/tscroll.c b/lib/libcurses/tscroll.c
new file mode 100644
index 0000000..db7eda9
--- /dev/null
+++ b/lib/libcurses/tscroll.c
@@ -0,0 +1,138 @@
+/*-
+ * Copyright (c) 1992, 1993, 1994
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)tscroll.c	8.2 (Berkeley) 4/15/94";
+#endif /* not lint */
+
+#include <curses.h>
+
+#define	MAXRETURNSIZE	64
+
+/*
+ * Routine to perform scrolling.  Derived from tgoto.c in tercamp(3)
+ * library.  Cap is a string containing printf type escapes to allow
+ * scrolling.  The following escapes are defined for substituting n:
+ *
+ *	%d	as in printf
+ *	%2	like %2d
+ *	%3	like %3d
+ *	%.	gives %c hacking special case characters
+ *	%+x	like %c but adding x first
+ *
+ *	The codes below affect the state but don't use up a value.
+ *
+ *	%>xy	if value > x add y
+ *	%i	increments n
+ *	%%	gives %
+ *	%B	BCD (2 decimal digits encoded in one byte)
+ *	%D	Delta Data (backwards bcd)
+ *
+ * all other characters are ``self-inserting''.
+ */
+char *
+__tscroll(cap, n)
+	const char *cap;
+	int n;
+{
+	static char result[MAXRETURNSIZE];
+	int c;
+	char *dp;
+
+	if (cap == NULL)
+		goto err;
+	for (dp = result; (c = *cap++) != '\0';) {
+		if (c != '%') {
+			*dp++ = c;
+			continue;
+		}
+		switch (c = *cap++) {
+		case 'n':
+			n ^= 0140;
+			continue;
+		case 'd':
+			if (n < 10)
+				goto one;
+			if (n < 100)
+				goto two;
+			/* FALLTHROUGH */
+		case '3':
+			*dp++ = (n / 100) | '0';
+			n %= 100;
+			/* FALLTHROUGH */
+		case '2':
+two:			*dp++ = n / 10 | '0';
+one:			*dp++ = n % 10 | '0';
+			continue;
+		case '>':
+			if (n > *cap++)
+				n += *cap++;
+			else
+				cap++;
+			continue;
+		case '+':
+			n += *cap++;
+			/* FALLTHROUGH */
+		case '.':
+			*dp++ = n;
+			continue;
+		case 'i':
+			n++;
+			continue;
+		case '%':
+			*dp++ = c;
+			continue;
+		case 'B':
+			n = (n / 10 << 4) + n % 10;
+			continue;
+		case 'D':
+			n = n - 2 * (n % 16);
+			continue;
+		/*
+		 * XXX
+		 * System V terminfo files have lots of extra gunk.
+		 * The only one we've seen in scrolling strings is
+		 * %pN, and it seems to work okay if we ignore it.
+		 */
+		case 'p':
+			++cap;
+			continue;
+		default:
+			goto err;
+		}
+	}
+	*dp = '\0';
+	return (result);
+
+err:	return("curses: __tscroll failed");
+}
diff --git a/lib/libcurses/tstp.c b/lib/libcurses/tstp.c
new file mode 100644
index 0000000..3a81751
--- /dev/null
+++ b/lib/libcurses/tstp.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)tstp.c	8.2 (Berkeley) 1/2/94";
+#endif /* not lint */
+
+#include <curses.h>
+#include <errno.h>
+#include <signal.h>
+#include <termios.h>
+#include <unistd.h>
+
+
+/*
+ * stop_signal_handler --
+ *	Handle stop signals.
+ */
+void
+__stop_signal_handler(signo)
+	int signo;
+{
+	struct termios save;
+	sigset_t oset, set;
+
+	/* Get the current terminal state (which the user may have changed). */
+	if (tcgetattr(STDIN_FILENO, &save))
+		return;
+
+	/*
+	 * Block window change and timer signals.  The latter is because
+	 * applications use timers to decide when to repaint the screen.
+	 */
+	(void)sigemptyset(&set);
+	(void)sigaddset(&set, SIGALRM);
+	(void)sigaddset(&set, SIGWINCH);
+	(void)sigprocmask(SIG_BLOCK, &set, &oset);
+	
+	/*
+	 * End the window, which also resets the terminal state to the
+	 * original modes.
+	 */
+	endwin();
+
+	/* Unblock SIGTSTP. */
+	(void)sigemptyset(&set);
+	(void)sigaddset(&set, SIGTSTP);
+	(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
+
+	/* Stop ourselves. */
+	__restore_stophandler();
+	(void)kill(0, SIGTSTP);
+
+	/* Time passes ... */
+
+	/* Reset the curses SIGTSTP signal handler. */
+	__set_stophandler();
+
+	/* save the new "default" terminal state */
+	(void)tcgetattr(STDIN_FILENO, &__orig_termios);
+
+	/* Reset the terminal state to the mode just before we stopped. */
+	(void)tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, &save);
+
+	/* Restart the screen. */
+	__startwin();
+
+	/* Repaint the screen. */
+	wrefresh(curscr);
+
+	/* Reset the signals. */
+	(void)sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+static void (*otstpfn)() = SIG_DFL;
+
+/*
+ * Set the TSTP handler.
+ */
+void
+__set_stophandler()
+{
+	otstpfn = signal(SIGTSTP, __stop_signal_handler);
+}
+
+/*
+ * Restore the TSTP handler.
+ */
+void
+__restore_stophandler()
+{
+	(void)signal(SIGTSTP, otstpfn);
+}
diff --git a/lib/libcurses/tty.c b/lib/libcurses/tty.c
new file mode 100644
index 0000000..e2693fb
--- /dev/null
+++ b/lib/libcurses/tty.c
@@ -0,0 +1,264 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)tty.c	8.2 (Berkeley) 1/2/94";
+#endif /* not lint */
+
+#include <sys/ioctl.h>
+
+#include <curses.h>
+#include <termios.h>
+#include <unistd.h>
+
+/*
+ * In general, curses should leave tty hardware settings alone (speed, parity,
+ * word size).  This is most easily done in BSD by using TCSASOFT on all
+ * tcsetattr calls.  On other systems, it would be better to get and restore
+ * those attributes at each change, or at least when stopped and restarted.
+ * See also the comments in getterm().
+ */
+#ifdef TCSASOFT
+int __tcaction = 1;			/* Ignore hardware settings. */
+#else
+int __tcaction = 0;
+#endif
+
+struct termios __orig_termios, __baset;
+static struct termios cbreakt, rawt, *curt;
+static int useraw;
+
+#ifndef	OXTABS
+#ifdef	XTABS			/* SMI uses XTABS. */
+#define	OXTABS	XTABS
+#else
+#define	OXTABS	0
+#endif
+#endif
+
+/*
+ * gettmode --
+ *	Do terminal type initialization.
+ */
+int
+gettmode()
+{
+	useraw = 0;
+	
+	if (tcgetattr(STDIN_FILENO, &__orig_termios))
+		return (ERR);
+
+	__baset = __orig_termios;
+	__baset.c_oflag &= ~OXTABS;
+
+	GT = 0;		/* historical. was used before we wired OXTABS off */
+	NONL = (__baset.c_oflag & ONLCR) == 0;
+
+	/*
+	 * XXX
+	 * System V and SMI systems overload VMIN and VTIME, such that
+	 * VMIN is the same as the VEOF element, and VTIME is the same
+	 * as the VEOL element.  This means that, if VEOF was ^D, the
+	 * default VMIN is 4.  Majorly stupid.
+	 */
+	cbreakt = __baset;
+	cbreakt.c_lflag &= ~ICANON;
+	cbreakt.c_cc[VMIN] = 1;
+	cbreakt.c_cc[VTIME] = 0;
+
+	rawt = cbreakt;
+	rawt.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|INLCR|IGNCR|ICRNL|IXON);
+	rawt.c_oflag &= ~OPOST;
+	rawt.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
+
+	/*
+	 * In general, curses should leave hardware-related settings alone.
+	 * This includes parity and word size.  Older versions set the tty
+	 * to 8 bits, no parity in raw(), but this is considered to be an
+	 * artifact of the old tty interface.  If it's desired to change
+	 * parity and word size, the TCSASOFT bit has to be removed from the
+	 * calls that switch to/from "raw" mode.
+	 */
+	if (!__tcaction) {
+		rawt.c_iflag &= ~ISTRIP;
+		rawt.c_cflag &= ~(CSIZE|PARENB);
+		rawt.c_cflag |= CS8;
+	}
+
+	curt = &__baset;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt) ? ERR : OK);
+}
+
+int
+raw()
+{
+	useraw = __pfast = __rawmode = 1;
+	curt = &rawt;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+noraw()
+{
+	useraw = __pfast = __rawmode = 0;
+	curt = &__baset;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+cbreak()
+{
+
+	__rawmode = 1;
+	curt = useraw ? &rawt : &cbreakt;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+nocbreak()
+{
+
+	__rawmode = 0;
+	curt = useraw ? &rawt : &__baset;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+	
+int
+echo()
+{
+	rawt.c_lflag |= ECHO;
+	cbreakt.c_lflag |= ECHO;
+	__baset.c_lflag |= ECHO;
+	
+	__echoit = 1;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+noecho()
+{
+	rawt.c_lflag &= ~ECHO;
+	cbreakt.c_lflag &= ~ECHO;
+	__baset.c_lflag &= ~ECHO;
+	
+	__echoit = 0;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+nl()
+{
+	rawt.c_iflag |= ICRNL;
+	rawt.c_oflag |= ONLCR;
+	cbreakt.c_iflag |= ICRNL;
+	cbreakt.c_oflag |= ONLCR;
+	__baset.c_iflag |= ICRNL;
+	__baset.c_oflag |= ONLCR;
+
+	__pfast = __rawmode;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+int
+nonl()
+{
+	rawt.c_iflag &= ~ICRNL;
+	rawt.c_oflag &= ~ONLCR;
+	cbreakt.c_iflag &= ~ICRNL;
+	cbreakt.c_oflag &= ~ONLCR;
+	__baset.c_iflag &= ~ICRNL;
+	__baset.c_oflag &= ~ONLCR;
+
+	__pfast = 1;
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, curt));
+}
+
+void
+__startwin()
+{
+	(void)fflush(stdout);
+	(void)setvbuf(stdout, NULL, _IOFBF, 0);
+
+	tputs(TI, 0, __cputchar);
+	tputs(VS, 0, __cputchar);
+}
+
+int
+endwin()
+{
+	__restore_stophandler();
+
+	if (curscr != NULL) {
+		if (curscr->flags & __WSTANDOUT) {
+			tputs(SE, 0, __cputchar);
+			curscr->flags &= ~__WSTANDOUT;
+		}
+		__mvcur(curscr->cury, curscr->cury, curscr->maxy - 1, 0, 0);
+	}
+
+	(void)tputs(VE, 0, __cputchar);
+	(void)tputs(TE, 0, __cputchar);
+	(void)fflush(stdout);
+	(void)setvbuf(stdout, NULL, _IOLBF, 0);
+
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, &__orig_termios));
+}
+
+/*
+ * The following routines, savetty and resetty are completely useless and
+ * are left in only as stubs.  If people actually use them they will almost
+ * certainly screw up the state of the world.
+ */
+static struct termios savedtty;
+int
+savetty()
+{
+	return (tcgetattr(STDIN_FILENO, &savedtty));
+}
+
+int
+resetty()
+{
+	return (tcsetattr(STDIN_FILENO, __tcaction ?
+	    TCSASOFT | TCSADRAIN : TCSADRAIN, &savedtty));
+}
diff --git a/lib/libcurses/unctrl.c b/lib/libcurses/unctrl.c
new file mode 100644
index 0000000..ff52230
--- /dev/null
+++ b/lib/libcurses/unctrl.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 1981, 1993
+ *	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.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)unctrl.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint */
+
+char *__unctrl[256] = {
+	"^@",  "^A",  "^B",  "^C",  "^D",  "^E",  "^F",  "^G",
+	"^H",  "^I",  "^J",  "^K",  "^L",  "^M",  "^N",  "^O",
+	"^P",  "^Q",  "^R",  "^S",  "^T",  "^U",  "^V",  "^W",
+	"^X",  "^Y",  "^Z",  "^[", "^\\",  "^]",  "^~",  "^_",
+	 " ",   "!",  "\"",   "#",   "$",   "%",   "&",   "'",
+	 "(",   ")",   "*",   "+",   ",",   "-",   ".",   "/",
+	 "0",   "1",   "2",   "3",   "4",   "5",   "6",   "7",
+	 "8",   "9",   ":",   ";",   "<",   "=",   ">",   "?",
+	 "@",   "A",   "B",   "C",   "D",   "E",   "F",   "G",
+	 "H",   "I",   "J",   "K",   "L",   "M",   "N",   "O",
+	 "P",   "Q",   "R",   "S",   "T",   "U",   "V",   "W",
+	 "X",   "Y",   "Z",   "[",  "\\",   "]",   "^",   "_",
+	 "`",   "a",   "b",   "c",   "d",   "e",   "f",   "g",
+	 "h",   "i",   "j",   "k",   "l",   "m",   "n",   "o",
+	 "p",   "q",   "r",   "s",   "t",   "u",   "v",   "w",
+	 "x",   "y",   "z",   "{",   "|",   "}",   "~",   "^?",
+
+	"0x80", "0x81",	"0x82", "0x83", "0x84", "0x85", "0x86", "0x87",
+	"0x88", "0x89",	"0x8a", "0x8b", "0x8c", "0x8d", "0x8e", "0x8f",
+	"0x90", "0x91",	"0x92", "0x93", "0x94", "0x95", "0x96", "0x97",
+	"0x98", "0x99",	"0x9a", "0x9b", "0x9c", "0x9d", "0x9e", "0x9f",
+	"0xa0", "0xa1",	"0xa2", "0xa3", "0xa4", "0xa5", "0xa6", "0xa7",
+	"0xa8", "0xa9",	"0xaa", "0xab", "0xac", "0xad", "0xae", "0xaf",
+	"0xb0", "0xb1",	"0xb2", "0xb3", "0xb4", "0xb5", "0xb6", "0xb7",
+	"0xb8", "0xb9",	"0xba", "0xbb", "0xbc", "0xbd", "0xbe", "0xbf",
+	"0xc0", "0xc1",	"0xc2", "0xc3", "0xc4", "0xc5", "0xc6", "0xc7",
+	"0xc8", "0xc9",	"0xca", "0xcb", "0xcc", "0xcd", "0xce", "0xcf",
+	"0xd0", "0xd1",	"0xd2", "0xd3", "0xd4", "0xd5", "0xd6", "0xd7",
+	"0xd8", "0xd9",	"0xda", "0xdb", "0xdc", "0xdd", "0xde", "0xdf",
+	"0xe0", "0xe1",	"0xe2", "0xe3", "0xe4", "0xe5", "0xe6", "0xe7",
+	"0xe8", "0xe9",	"0xea", "0xeb", "0xec", "0xed", "0xee", "0xef",
+	"0xf0", "0xf1",	"0xf2", "0xf3", "0xf4", "0xf5", "0xf6", "0xf7",
+	"0xf8", "0xf9",	"0xfa", "0xfb", "0xfc", "0xfd", "0xfe", "0xff",
+};
+
+char __unctrllen[256] = {
+	2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 2, 
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+	4, 4, 4, 4, 4, 4, 4, 4,
+};