libpayload: Add PDCurses and ncurses' libform/libmenu

PDCurses provides an alternative implementation of the curses library
standard in addition to tinycurses.
Where tinycurses is really tiny, PDCurses is more complete and provides
virtually unlimited windows and the full API.
The PDCurses code is brought in "vanilla", with all local changes
residing in curses/pdcurses-backend/

In addition to a curses library, this change also provides libpanel (as
part of the PDCurses code), and libform and libmenu which were derived
from ncurses-5.9.
As they rely on ncurses internals (and PDCurses is not ncurses), more
changes were required for these libraries to work.

The build system is extended to install the right set of header files
depending on the selected curses implementation.

Change-Id: I9e5b920f94b6510da01da2f656196a993170d1c5
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/106
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

16 files changed, 2529 insertions, 0 deletions

diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/README b/payloads/libpayload/curses/PDCurses-3.4/dos/README
new file mode 100644
index 0000000000..569034bbae
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/README
@@ -0,0 +1,49 @@
+PDCurses for DOS
+================
+
+This directory contains PDCurses source code files specific to DOS.
+
+
+Building
+--------
+
+. Choose the appropriate makefile for your compiler:
+
+	bccdos.mak	- Borland C++ 3.0+
+	gccdos.mak	- DJGPP V2
+	mscdos.mak	- Microsoft C
+	wccdos16.mak	- Watcom 10.6+ (16-bit)
+	wccdos4g.mak	- Watcom 10.6+ (32-bit)
+
+. For 16-bit compilers, you can change the memory MODEL in the makefile.
+  (Large model is the default, and recommended.)
+
+. Optionally, you can build in a different directory than the platform
+  directory by setting PDCURSES_SRCDIR to point to the directory where
+  you unpacked PDCurses, and changing to your target directory:
+
+	set PDCURSES_SRCDIR=c:\pdcurses
+
+. Build it:
+
+	make -f makefile
+
+  (For Watcom, use "wmake" instead of "make"; for MSVC, "nmake".) You'll
+  get the libraries (pdcurses.lib or .a, depending on your compiler; and
+  panel.lib or .a), the demos (*.exe), and a lot of object files. Note
+  that the panel library is just a copy of the main library, provided 
+  for convenience; both panel and curses functions are in the main 
+  library.
+
+
+Distribution Status
+-------------------
+
+The files in this directory are released to the Public Domain.
+
+
+Acknowledgements
+----------------
+
+Watcom C port was provided by Pieter Kunst <kunst@prl.philips.nl>
+DJGPP 1.x port was provided by David Nugent <davidn@csource.oz.au>
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.lrf b/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.lrf
new file mode 100644
index 0000000000..9bd18c6b2d
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.lrf
@@ -0,0 +1,9 @@
++addch.obj +addchstr.obj +addstr.obj +attr.obj +beep.obj +bkgd.obj &
++border.obj +clear.obj +color.obj +delch.obj +deleteln.obj +deprec.obj &
++getch.obj +getstr.obj +getyx.obj +inch.obj +inchstr.obj +initscr.obj &
++inopts.obj +insch.obj +insstr.obj +instr.obj +kernel.obj +keyname.obj &
++mouse.obj +move.obj +outopts.obj +overlay.obj +pad.obj +panel.obj &
++printw.obj +refresh.obj +scanw.obj +scr_dump.obj +scroll.obj +slk.obj &
++termattr.obj +terminfo.obj +touch.obj +util.obj +window.obj +debug.obj &
++pdcclip.obj +pdcdisp.obj +pdcgetsc.obj +pdckbd.obj +pdcscrn.obj &
++pdcsetsc.obj +pdcutil.obj ,lib.map
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.mak b/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.mak
new file mode 100644
index 0000000000..6361a4d8b7
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/bccdos.mak
@@ -0,0 +1,82 @@
+# Borland MAKE Makefile for PDCurses library - DOS BC++ 3.0+
+#
+# Usage: make -f [path\]bccdos.mak [DEBUG=] [target]
+#
+# where target can be any of:
+# [all|demos|pdcurses.lib|testcurs.exe...]
+
+# Change the memory MODEL here, if desired
+MODEL = l
+
+O = obj
+
+!ifndef PDCURSES_SRCDIR
+PDCURSES_SRCDIR = ..
+!endif
+
+!include $(PDCURSES_SRCDIR)\version.mif
+!include $(PDCURSES_SRCDIR)\libobjs.mif
+
+osdir		= $(PDCURSES_SRCDIR)\dos
+
+!ifdef DEBUG
+CFLAGS		= -N -v -y -DPDCDEBUG 
+!else
+CFLAGS		= -O 
+!endif
+
+CPPFLAGS	= -I$(PDCURSES_SRCDIR)
+
+BUILD		= $(CC) -1- -K -G -rd -d -w-eff -w-par -c \
+-m$(MODEL) $(CFLAGS) $(CPPFLAGS)
+
+LIBEXE		= tlib /C /E
+
+LIBCURSES	= pdcurses.lib
+
+all:	$(LIBCURSES) $(DEMOS)
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.map
+	-del *.exe
+
+demos:	$(DEMOS)
+
+$(LIBCURSES) : $(LIBOBJS) $(PDCOBJS)
+	-del $@
+	$(LIBEXE) $@ @$(osdir)\bccdos.lrf
+	-copy $(LIBCURSES) panel.lib
+
+.autodepend
+
+{$(srcdir)\}.c.obj:
+	$(BUILD) $<
+
+{$(osdir)\}.c.obj:
+	$(BUILD) $<
+
+{$(demodir)\}.c.obj:
+	$(BUILD) $<
+
+.c.obj:
+	$(BUILD) $<
+
+.obj.exe:
+	$(CC) -m$(MODEL) -e$@ $** $(LIBCURSES)
+
+tuidemo.exe:	tuidemo.obj tui.obj $(LIBCURSES)
+	$(CC) -m$(MODEL) -e$@ $**
+
+tui.obj: $(demodir)\tui.c $(demodir)\tui.h $(PDCURSES_CURSES_H)
+	$(BUILD) -I$(demodir) $(demodir)\tui.c
+
+tuidemo.obj: $(demodir)\tuidemo.c $(PDCURSES_CURSES_H)
+	$(BUILD) -I$(demodir) $(demodir)\tuidemo.c
+
+PLATFORM1 = Borland C++ 3.1
+PLATFORM2 = Borland C/C++ 3.1 for DOS
+ARCNAME = pdc$(VER)bcc
+
+!include $(PDCURSES_SRCDIR)\makedist.mif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/gccdos.mak b/payloads/libpayload/curses/PDCurses-3.4/dos/gccdos.mak
new file mode 100644
index 0000000000..26a4ed3d09
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/gccdos.mak
@@ -0,0 +1,87 @@
+# GNU MAKE (3.79.1) Makefile for PDCurses library - DOS DJGPP V2.0+
+#
+# Usage: make -f [path\]gccdos.mak [DEBUG=Y] [target]
+#
+# where target can be any of:
+# [all|libs|demos|dist|pdcurses.a|testcurs.exe...]
+
+O = o
+
+ifndef PDCURSES_SRCDIR
+	PDCURSES_SRCDIR = ..
+endif
+
+include $(PDCURSES_SRCDIR)/version.mif
+include $(PDCURSES_SRCDIR)/libobjs.mif
+
+osdir		= $(PDCURSES_SRCDIR)/dos
+
+PDCURSES_DOS_H	= $(osdir)/pdcdos.h
+
+CC		= gcc
+
+ifeq ($(DEBUG),Y)
+	CFLAGS  = -g -Wall -DPDCDEBUG
+	LDFLAGS = -g
+else
+	CFLAGS  = -O2 -Wall
+	LDFLAGS =
+endif
+
+CFLAGS += -I$(PDCURSES_SRCDIR)
+
+LINK		= gcc
+
+LIBEXE		= ar
+LIBFLAGS	= rcv
+
+LIBCURSES	= pdcurses.a
+
+.PHONY: all libs clean demos dist
+
+all:	libs demos
+
+libs:	$(LIBCURSES)
+
+clean:
+	-del *.o
+	-del *.a
+	-del *.exe
+
+demos:	$(DEMOS)
+	strip *.exe
+
+$(LIBCURSES) : $(LIBOBJS) $(PDCOBJS)
+	$(LIBEXE) $(LIBFLAGS) $@ $?
+	-copy $(LIBCURSES) panel.a
+
+$(LIBOBJS) $(PDCOBJS) : $(PDCURSES_HEADERS)
+$(PDCOBJS) : $(PDCURSES_DOS_H)
+$(DEMOS) : $(PDCURSES_CURSES_H) $(LIBCURSES)
+panel.o : $(PANEL_HEADER)
+terminfo.o: $(TERM_HEADER)
+
+$(LIBOBJS) : %.o: $(srcdir)/%.c
+	$(CC) -c $(CFLAGS) $<
+
+$(PDCOBJS) : %.o: $(osdir)/%.c
+	$(CC) -c $(CFLAGS) $<
+
+firework.exe newdemo.exe rain.exe testcurs.exe worm.exe xmas.exe \
+ptest.exe: %.exe: $(demodir)/%.c
+	$(CC) $(CFLAGS) -o$@ $< $(LIBCURSES)
+
+tuidemo.exe: tuidemo.o tui.o
+	$(LINK) $(LDFLAGS) -o$@ tuidemo.o tui.o $(LIBCURSES)
+
+tui.o: $(demodir)/tui.c $(demodir)/tui.h $(PDCURSES_CURSES_H)
+	$(CC) -c $(CFLAGS) -I$(demodir) -o$@ $<
+
+tuidemo.o: $(demodir)/tuidemo.c $(PDCURSES_CURSES_H)
+	$(CC) -c $(CFLAGS) -I$(demodir) -o$@ $<
+
+PLATFORM1 = DJGPP 2.03
+PLATFORM2 = DJGPP 2.03 for DOS
+ARCNAME = pdc$(VER)djg
+
+include $(PDCURSES_SRCDIR)/makedist.mif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.lrf b/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.lrf
new file mode 100644
index 0000000000..b1fdf37e99
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.lrf
@@ -0,0 +1,50 @@
+-+addch.obj &
+-+addchstr.obj &
+-+addstr.obj &
+-+attr.obj &
+-+beep.obj &
+-+bkgd.obj &
+-+border.obj &
+-+clear.obj &
+-+color.obj &
+-+delch.obj &
+-+deleteln.obj &
+-+deprec.obj &
+-+getch.obj &
+-+getstr.obj &
+-+getyx.obj &
+-+inch.obj & 
+-+inchstr.obj &
+-+initscr.obj &
+-+inopts.obj &
+-+insch.obj &
+-+insstr.obj &
+-+instr.obj &
+-+kernel.obj &
+-+keyname.obj &
+-+mouse.obj &
+-+move.obj & 
+-+outopts.obj &
+-+overlay.obj &
+-+pad.obj &  
+-+panel.obj &
+-+printw.obj &
+-+refresh.obj &
+-+scanw.obj &
+-+scr_dump.obj &
+-+scroll.obj &
+-+slk.obj &  
+-+termattr.obj &
+-+terminfo.obj &
+-+touch.obj &
+-+util.obj & 
+-+window.obj &
+-+debug.obj &
+-+pdcclip.obj &
+-+pdcdisp.obj &
+-+pdcgetsc.obj &
+-+pdckbd.obj &
+-+pdcscrn.obj &
+-+pdcsetsc.obj &
+-+pdcutil.obj &
+,lib.map;
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.mak b/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.mak
new file mode 100644
index 0000000000..7aa6c5f715
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/mscdos.mak
@@ -0,0 +1,114 @@
+# NMAKE Makefile for PDCurses library - Microsoft C for DOS
+#
+# Usage: nmake -f [path\]dosmsc.mak [DEBUG=] [target]
+#
+# where target can be any of:
+# [all|demos|pdcurses.lib|testcurs.exe...]
+
+# Change the memory MODEL here, if desired
+MODEL	= L       # one of L, S, M, T, H, C
+SIZE	= LARGE   # one of LARGE, SMALL, MEDIUM, TINY, HUGE, COMPACT
+
+O = obj
+
+!ifndef PDCURSES_SRCDIR
+PDCURSES_SRCDIR = ..
+!endif
+
+!include $(PDCURSES_SRCDIR)\version.mif
+!include $(PDCURSES_SRCDIR)\libobjs.mif
+
+osdir		= $(PDCURSES_SRCDIR)\dos
+
+PDCURSES_DOS_H	= $(osdir)\pdcdos.h
+
+CC		= cl
+
+!ifdef DEBUG
+CFLAGS		= /Od /Zi /DPDCDEBUG
+LDFLAGS		= /CO /NOE /SE:160 
+!else
+CFLAGS		= /Ox
+LDFLAGS		= /NOE /SE:160
+!endif
+
+CPPFLAGS	= -I$(PDCURSES_SRCDIR)
+
+BUILD		= $(CC) /J /nologo /c /D$(SIZE) /A$(MODEL) $(CFLAGS) $(CPPFLAGS)
+
+LINK		= link
+
+CCLIBS		=
+
+LIBEXE		= lib
+
+LIBCURSES	= pdcurses.lib
+
+all:	$(LIBCURSES) $(DEMOS)
+
+clean:
+	-del *.obj
+	-del *.lib
+	-del *.exe
+
+demos:	$(DEMOS)
+
+DEMOOBJS = $(DEMOS:.exe=.obj) tui.obj
+
+$(LIBOBJS) $(PDCOBJS) : $(PDCURSES_HEADERS)
+$(DEMOOBJS) : $(PDCURSES_CURSES_H)
+$(DEMOS) : $(LIBCURSES)
+panel.obj : $(PANEL_HEADER)
+terminfo.obj: $(TERM_HEADER)
+
+$(LIBCURSES) : $(LIBOBJS) $(PDCOBJS)
+	$(LIBEXE) $@ @$(osdir)\mscdos.lrf
+	-copy $(LIBCURSES) panel.lib
+
+{$(srcdir)\}.c{}.obj:
+	$(BUILD) $<
+
+{$(osdir)\}.c{}.obj:
+	$(BUILD) $<
+
+{$(demodir)\}.c{}.obj:
+	$(BUILD) $<
+
+firework.exe: firework.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+newdemo.exe: newdemo.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+ptest.exe: ptest.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+rain.exe: rain.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+testcurs.exe: testcurs.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+tuidemo.exe: tuidemo.obj tui.obj
+	$(LINK) $(LDFLAGS) $*.obj+tui.obj,$*,,$(LIBCURSES);
+
+worm.exe: worm.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+xmas.exe: xmas.obj
+	$(LINK) $(LDFLAGS) $*.obj,$*,,$(LIBCURSES);
+
+ptest.obj: $(demodir)\ptest.c $(PANEL_HEADER)
+	$(BUILD) $(demodir)\ptest.c
+
+tui.obj: $(demodir)\tui.c $(demodir)\tui.h
+	$(BUILD) -I$(demodir) $(demodir)\tui.c
+
+tuidemo.obj: $(demodir)\tuidemo.c
+	$(BUILD) -I$(demodir) $(demodir)\tuidemo.c
+
+PLATFORM1 = Microsoft C
+PLATFORM2 = Microsoft C for DOS
+ARCNAME = pdc$(VER)msc
+
+!include $(PDCURSES_SRCDIR)\makedist.mif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcclip.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcclip.c
new file mode 100644
index 0000000000..74607aa0bc
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcclip.c
@@ -0,0 +1,129 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcclip.c,v 1.33 2008/07/13 16:08:17 wmcbrine Exp $")
+
+#include <stdlib.h>
+
+/*man-start**************************************************************
+
+  Name:                                                         clipboard
+
+  Synopsis:
+        int PDC_getclipboard(char **contents, long *length);
+        int PDC_setclipboard(const char *contents, long length);
+        int PDC_freeclipboard(char *contents);
+        int PDC_clearclipboard(void);
+
+  Description:
+        PDC_getclipboard() gets the textual contents of the system's 
+        clipboard. This function returns the contents of the clipboard 
+        in the contents argument. It is the responsibilitiy of the 
+        caller to free the memory returned, via PDC_freeclipboard().
+        The length of the clipboard contents is returned in the length 
+        argument.
+
+        PDC_setclipboard copies the supplied text into the system's 
+        clipboard, emptying the clipboard prior to the copy.
+
+        PDC_clearclipboard() clears the internal clipboard.
+
+  Return Values:
+        indicator of success/failure of call.
+        PDC_CLIP_SUCCESS        the call was successful
+        PDC_CLIP_MEMORY_ERROR   unable to allocate sufficient memory for 
+                                the clipboard contents
+        PDC_CLIP_EMPTY          the clipboard contains no text
+        PDC_CLIP_ACCESS_ERROR   no clipboard support
+
+  Portability                                X/Open    BSD    SYS V
+        PDC_getclipboard                        -       -       -
+        PDC_setclipboard                        -       -       -
+        PDC_freeclipboard                       -       -       -
+        PDC_clearclipboard                      -       -       -
+
+**man-end****************************************************************/
+
+/* global clipboard contents, should be NULL if none set */
+
+static char *pdc_DOS_clipboard = NULL;
+
+int PDC_getclipboard(char **contents, long *length)
+{
+    int len;
+
+    PDC_LOG(("PDC_getclipboard() - called\n"));
+
+    if (!pdc_DOS_clipboard)
+        return PDC_CLIP_EMPTY;
+
+    len = strlen(pdc_DOS_clipboard);
+    if ((*contents = malloc(len + 1)) == NULL)
+        return PDC_CLIP_MEMORY_ERROR;
+
+    strcpy(*contents, pdc_DOS_clipboard);
+    *length = len;
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_setclipboard(const char *contents, long length)
+{
+    PDC_LOG(("PDC_setclipboard() - called\n"));
+
+    if (pdc_DOS_clipboard)
+    {
+        free(pdc_DOS_clipboard);
+        pdc_DOS_clipboard = NULL;
+    }
+
+    if (contents)
+    {
+        if ((pdc_DOS_clipboard = malloc(length + 1)) == NULL)
+            return PDC_CLIP_MEMORY_ERROR;
+
+        strcpy(pdc_DOS_clipboard, contents);
+    }
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_freeclipboard(char *contents)
+{
+    PDC_LOG(("PDC_freeclipboard() - called\n"));
+
+    /* should we also free empty the system clipboard? probably not */
+
+    if (contents)
+    {
+
+        /* NOTE: We free the memory, but we can not set caller's pointer 
+           to NULL, so if caller calls again then will try to access 
+           free'd memory.  We 1st overwrite memory with a string so if 
+           caller tries to use free memory they won't get what they 
+           expect & hopefully notice. */
+
+        /* memset(contents, 0xFD, strlen(contents)); */
+
+        if (strlen(contents) >= strlen("PDCURSES"))
+            strcpy(contents, "PDCURSES");
+
+        free(contents);
+    }
+
+    return PDC_CLIP_SUCCESS;
+}
+
+int PDC_clearclipboard(void)
+{
+    PDC_LOG(("PDC_clearclipboard() - called\n"));
+
+    if (pdc_DOS_clipboard) 
+    {
+        free(pdc_DOS_clipboard);
+        pdc_DOS_clipboard = NULL;
+    }
+
+    return PDC_CLIP_SUCCESS;
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdisp.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdisp.c
new file mode 100644
index 0000000000..aae9bfb56d
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdisp.c
@@ -0,0 +1,158 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcdisp.c,v 1.65 2008/07/13 16:08:17 wmcbrine Exp $")
+
+/* ACS definitions originally by jshumate@wrdis01.robins.af.mil -- these
+   match code page 437 and compatible pages (CP850, CP852, etc.) */
+
+#ifdef CHTYPE_LONG
+
+# define A(x) ((chtype)x | A_ALTCHARSET)
+
+chtype acs_map[128] =
+{
+    A(0), A(1), A(2), A(3), A(4), A(5), A(6), A(7), A(8), A(9), A(10), 
+    A(11), A(12), A(13), A(14), A(15), A(16), A(17), A(18), A(19), 
+    A(20), A(21), A(22), A(23), A(24), A(25), A(26), A(27), A(28), 
+    A(29), A(30), A(31), ' ', '!', '"', '#', '$', '%', '&', '\'', '(', 
+    ')', '*',
+
+    A(0x1a), A(0x1b), A(0x18), A(0x19),
+
+    '/',
+
+    0xdb,
+
+    '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(0x04), 0xb1,
+
+    'b', 'c', 'd', 'e',
+
+    0xf8, 0xf1, 0xb0, A(0x0f), 0xd9, 0xbf, 0xda, 0xc0, 0xc5, 0x2d, 0x2d, 
+    0xc4, 0x2d, 0x5f, 0xc3, 0xb4, 0xc1, 0xc2, 0xb3, 0xf3, 0xf2, 0xe3, 
+    0xd8, 0x9c, 0xf9,
+
+    A(127)
+};
+
+# undef A
+
+#endif
+
+#ifdef __PACIFIC__
+void movedata(unsigned sseg, unsigned soff, unsigned dseg,
+              unsigned doff, unsigned n)
+{
+    far char *src = MK_FP(sseg, soff);
+    far char *dst = MK_FP(dseg, doff);
+
+    while (n--)
+        *dst++ = *src++;
+}
+#endif
+
+/* position hardware cursor at (y, x) */
+
+void PDC_gotoyx(int row, int col)
+{
+    PDCREGS regs;
+
+    PDC_LOG(("PDC_gotoyx() - called: row %d col %d\n", row, col));
+
+    regs.h.ah = 0x02;
+    regs.h.bh = 0;
+    regs.h.dh = (unsigned char) row;
+    regs.h.dl = (unsigned char) col;
+    PDCINT(0x10, regs);
+}
+
+/* update the given physical line to look like the corresponding line in 
+   curscr */
+
+void PDC_transform_line(int lineno, int x, int len, const chtype *srcp)
+{
+    int j;
+
+    PDC_LOG(("PDC_transform_line() - called: line %d\n", lineno));
+
+    if (pdc_direct_video)
+    {
+#if SMALL || MEDIUM
+# ifndef __PACIFIC__
+        struct SREGS segregs;
+# endif
+        int ds;
+#endif
+        /* this should be enough for the maximum width of a screen */
+
+        struct {unsigned char text, attr;} temp_line[256];
+
+        /* replace the attribute part of the chtype with the actual 
+           color value for each chtype in the line */
+
+        for (j = 0; j < len; j++)
+        {
+            chtype ch = srcp[j];
+
+            temp_line[j].attr = pdc_atrtab[ch >> PDC_ATTR_SHIFT];
+#ifdef CHTYPE_LONG
+            if (ch & A_ALTCHARSET && !(ch & 0xff80))
+                ch = acs_map[ch & 0x7f];
+#endif
+            temp_line[j].text = ch & 0xff;
+        }
+
+#ifdef __DJGPP__
+        dosmemput(temp_line, len * 2,
+                  (unsigned long)_FAR_POINTER(pdc_video_seg,
+                  pdc_video_ofs + (lineno * curscr->_maxx + x) * 2));
+#else
+# if SMALL || MEDIUM
+#  ifdef __PACIFIC__
+        ds = FP_SEG((void far *) temp_line);
+#  else
+        segread(&segregs);
+        ds = segregs.ds;
+#  endif
+        movedata(ds, (int)temp_line, pdc_video_seg,
+                 pdc_video_ofs + (lineno * curscr->_maxx + x) * 2, len * 2);
+# else
+        memcpy((void *)_FAR_POINTER(pdc_video_seg,
+               pdc_video_ofs + (lineno * curscr->_maxx + x) * 2),
+               temp_line, len * 2);
+# endif
+#endif
+
+    }
+    else
+        for (j = 0; j < len;)
+        {
+            PDCREGS regs;
+            unsigned short count = 1;
+            chtype ch = srcp[j];
+
+            while ((j + count < len) && (ch == srcp[j + count]))
+                count++;
+
+            PDC_gotoyx(lineno, j + x);
+
+            regs.h.ah = 0x09;
+            regs.W.bx = pdc_atrtab[ch >> PDC_ATTR_SHIFT];
+            regs.W.cx = count;
+#ifdef CHTYPE_LONG
+            if (ch & A_ALTCHARSET && !(ch & 0xff80))
+                ch = acs_map[ch & 0x7f];
+#endif
+            regs.h.al = (unsigned char) (ch & 0xff);
+
+            PDCINT(0x10, regs);
+
+            j += count;
+        }
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdos.h b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdos.h
new file mode 100644
index 0000000000..436699de2f
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcdos.h
@@ -0,0 +1,186 @@
+/* Public Domain Curses */
+
+/* $Id: pdcdos.h,v 1.30 2008/07/13 16:08:17 wmcbrine Exp $ */
+
+#include <curspriv.h>
+#include <string.h>
+
+#if defined(_MSC_VER) || defined(_QC)
+# define MSC 1
+#endif
+
+#if defined(__PACIFIC__) && !defined(__SMALL__)
+# define __SMALL__
+#endif
+
+#if defined(__HIGHC__) || MSC
+# include <bios.h>
+#endif
+
+/*----------------------------------------------------------------------
+ *  MEMORY MODEL SUPPORT:
+ *
+ *  MODELS
+ *    TINY    cs,ds,ss all in 1 segment (not enough memory!)
+ *    SMALL   cs:1 segment, ds:1 segment
+ *    MEDIUM  cs:many segments, ds:1 segment
+ *    COMPACT cs:1 segment, ds:many segments
+ *    LARGE   cs:many segments, ds:many segments
+ *    HUGE    cs:many segments, ds:segments > 64K
+ */
+
+#ifdef __TINY__
+# define SMALL 1
+#endif
+#ifdef __SMALL__
+# define SMALL 1
+#endif
+#ifdef __MEDIUM__
+# define MEDIUM 1
+#endif
+#ifdef __COMPACT__
+# define COMPACT 1
+#endif
+#ifdef __LARGE__
+# define LARGE 1
+#endif
+#ifdef __HUGE__
+# define HUGE 1
+#endif
+
+#include <dos.h>
+
+extern unsigned char *pdc_atrtab;
+extern int pdc_adapter;
+extern int pdc_scrnmode;
+extern int pdc_font;
+extern bool pdc_direct_video;
+extern bool pdc_bogus_adapter;
+extern unsigned pdc_video_seg;
+extern unsigned pdc_video_ofs;
+
+#ifdef __DJGPP__        /* Note: works only in plain DOS... */
+# if DJGPP == 2
+#  define _FAR_POINTER(s,o) ((((int)(s)) << 4) + ((int)(o)))
+# else
+#  define _FAR_POINTER(s,o) (0xe0000000 + (((int)(s)) << 4) + ((int)(o)))
+# endif
+# define _FP_SEGMENT(p)     (unsigned short)((((long)p) >> 4) & 0xffff)
+#else
+# ifdef __TURBOC__
+#  define _FAR_POINTER(s,o) MK_FP(s,o)
+# else
+#  if defined(__WATCOMC__) && defined(__FLAT__)
+#   define _FAR_POINTER(s,o) ((((int)(s)) << 4) + ((int)(o)))
+#  else
+#   define _FAR_POINTER(s,o) (((long)s << 16) | (long)o)
+#  endif
+# endif
+# define _FP_SEGMENT(p)     (unsigned short)(((long)p) >> 4)
+#endif
+#define _FP_OFFSET(p)       ((unsigned short)p & 0x000f)
+
+#ifdef __DJGPP__
+# include <sys/movedata.h>
+unsigned char getdosmembyte(int offs);
+unsigned short getdosmemword(int offs);
+unsigned long getdosmemdword(int offs);
+void setdosmembyte(int offs, unsigned char b);
+void setdosmemword(int offs, unsigned short w);
+#else
+# if SMALL || MEDIUM || MSC
+#  define PDC_FAR far
+# else
+#  define PDC_FAR
+# endif
+# define getdosmembyte(offs) \
+    (*((unsigned char PDC_FAR *) _FAR_POINTER(0,offs)))
+# define getdosmemword(offs) \
+    (*((unsigned short PDC_FAR *) _FAR_POINTER(0,offs)))
+# define getdosmemdword(offs) \
+    (*((unsigned long PDC_FAR *) _FAR_POINTER(0,offs)))
+# define setdosmembyte(offs,x) \
+    (*((unsigned char PDC_FAR *) _FAR_POINTER(0,offs)) = (x))
+# define setdosmemword(offs,x) \
+    (*((unsigned short PDC_FAR *) _FAR_POINTER(0,offs)) = (x))
+#endif
+
+#if defined(__WATCOMC__) && defined(__386__)
+
+typedef union
+{
+    struct
+    {
+        unsigned long edi, esi, ebp, res, ebx, edx, ecx, eax;
+    } d;
+
+    struct
+    {
+        unsigned short di, di_hi, si, si_hi, bp, bp_hi, res, res_hi,
+                       bx, bx_hi, dx, dx_hi, cx, cx_hi, ax, ax_hi, 
+                       flags, es, ds, fs, gs, ip, cs, sp, ss;
+    } w;
+
+    struct
+    {
+        unsigned char edi[4], esi[4], ebp[4], res[4],
+                      bl, bh, ebx_b2, ebx_b3, dl, dh, edx_b2, edx_b3,
+                      cl, ch, ecx_b2, ecx_b3, al, ah, eax_b2, eax_b3;
+    } h;
+} pdc_dpmi_regs;
+
+void PDC_dpmi_int(int, pdc_dpmi_regs *);
+
+#endif
+
+#ifdef __DJGPP__
+# include <dpmi.h>
+# define PDCREGS __dpmi_regs
+# define PDCINT(vector, regs) __dpmi_int(vector, &regs)
+#else
+# ifdef __WATCOMC__
+#  ifdef __386__
+#   define PDCREGS pdc_dpmi_regs
+#   define PDCINT(vector, regs) PDC_dpmi_int(vector, &regs)
+#  else
+#   define PDCREGS union REGPACK
+#   define PDCINT(vector, regs) intr(vector, &regs)
+#  endif
+# else
+#  define PDCREGS union REGS
+#  define PDCINT(vector, regs) int86(vector, &regs, &regs)
+# endif
+#endif
+
+/* Wide registers in REGS: w or x? */
+
+#ifdef __WATCOMC__
+# define W w
+#else
+# define W x
+#endif
+
+/* Monitor (terminal) type information */
+
+enum
+{
+    _NONE, _MDA, _CGA,
+    _EGACOLOR = 0x04, _EGAMONO,
+    _VGACOLOR = 0x07, _VGAMONO,
+    _MCGACOLOR = 0x0a, _MCGAMONO,
+    _MDS_GENIUS = 0x30
+};
+
+/* Text-mode font size information */
+
+enum
+{
+    _FONT8 = 8,
+    _FONT14 = 14,
+    _FONT15,    /* GENIUS */
+    _FONT16
+};
+
+#ifdef __PACIFIC__
+void movedata(unsigned, unsigned, unsigned, unsigned, unsigned);
+#endif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcgetsc.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcgetsc.c
new file mode 100644
index 0000000000..290db5a3c7
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcgetsc.c
@@ -0,0 +1,100 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcgetsc.c,v 1.42 2008/07/13 16:08:17 wmcbrine Exp $")
+
+#include <stdlib.h>
+
+/* return width of screen/viewport */
+
+int PDC_get_columns(void)
+{
+    PDCREGS regs;
+    int cols;
+    const char *env_cols;
+
+    PDC_LOG(("PDC_get_columns() - called\n"));
+
+    /* use the value from COLS environment variable, if set. MH 10-Jun-92 */
+    /* and use the minimum of COLS and return from int10h    MH 18-Jun-92 */
+
+    regs.h.ah = 0x0f;
+    PDCINT(0x10, regs);
+    cols = (int)regs.h.ah;
+
+    env_cols = getenv("COLS");
+
+    if (env_cols)
+        cols = min(atoi(env_cols), cols);
+
+    PDC_LOG(("PDC_get_columns() - returned: cols %d\n", cols));
+
+    return cols;
+}
+
+/* get the cursor size/shape */
+
+int PDC_get_cursor_mode(void)
+{
+    PDC_LOG(("PDC_get_cursor_mode() - called\n"));
+
+    return getdosmemword(0x460);
+}
+
+/* return number of screen rows */
+
+int PDC_get_rows(void)
+{
+    const char *env_rows;
+    int rows;
+
+    PDC_LOG(("PDC_get_rows() - called\n"));
+
+    /* use the value from LINES environment variable, if set. MH 10-Jun-92 */
+    /* and use the minimum of LINES and *ROWS.                MH 18-Jun-92 */
+
+    rows = getdosmembyte(0x484) + 1;
+    env_rows = getenv("LINES");
+
+    if (env_rows)
+        rows = min(atoi(env_rows), rows);
+
+    if (rows == 1 && pdc_adapter == _MDS_GENIUS)
+        rows = 66;
+    if (rows == 1 && pdc_adapter == _MDA)
+        rows = 25;
+
+    if (rows == 1)
+    {
+        rows = 25;
+        pdc_direct_video = FALSE;
+    }
+
+    switch (pdc_adapter)
+    {
+    case _EGACOLOR:
+    case _EGAMONO:
+        switch (rows)
+        {
+        case 25:
+        case 43:
+            break;
+        default:
+            rows = 25;
+        }
+        break;
+
+    case _VGACOLOR:
+    case _VGAMONO:
+        break;
+
+    default:
+        rows = 25;
+        break;
+    }
+
+    PDC_LOG(("PDC_get_rows() - returned: rows %d\n", rows));
+
+    return rows;
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c
new file mode 100644
index 0000000000..652cb0cba7
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdckbd.c
@@ -0,0 +1,511 @@
+/* Public Domain Curses */
+                          
+/* MS C doesn't return flags from int86() */
+#ifdef MSC
+# define USE_KBHIT
+#endif
+
+#ifdef USE_KBHIT
+# include <conio.h>
+#endif
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdckbd.c,v 1.87 2008/07/13 16:08:17 wmcbrine Exp $")
+
+/*man-start**************************************************************
+
+  Name:                                                         pdckbd
+
+  Synopsis:
+        unsigned long PDC_get_input_fd(void);
+
+  Description:
+        PDC_get_input_fd() returns the file descriptor that PDCurses 
+        reads its input from. It can be used for select().
+
+  Portability                                X/Open    BSD    SYS V
+        PDC_get_input_fd                        -       -       -
+
+**man-end****************************************************************/
+
+#ifdef __DJGPP__
+# include <fcntl.h>
+# include <io.h>
+# include <signal.h>
+#endif
+
+/************************************************************************
+ *    Table for key code translation of function keys in keypad mode    *
+ *    These values are for strict IBM keyboard compatibles only         *
+ ************************************************************************/
+
+static short key_table[] =
+{
+    -1,             ALT_ESC,        -1,             0,
+    -1,             -1,             -1,             -1,
+    -1,             -1,             -1,             -1,
+    -1,             -1,             ALT_BKSP,       KEY_BTAB,
+    ALT_Q,          ALT_W,          ALT_E,          ALT_R,
+    ALT_T,          ALT_Y,          ALT_U,          ALT_I,
+    ALT_O,          ALT_P,          ALT_LBRACKET,   ALT_RBRACKET,
+    ALT_ENTER,      -1,             ALT_A,          ALT_S,
+    ALT_D,          ALT_F,          ALT_G,          ALT_H,
+    ALT_J,          ALT_K,          ALT_L,          ALT_SEMICOLON,
+    ALT_FQUOTE,     ALT_BQUOTE,     -1,             ALT_BSLASH,
+    ALT_Z,          ALT_X,          ALT_C,          ALT_V,
+    ALT_B,          ALT_N,          ALT_M,          ALT_COMMA,
+    ALT_STOP,       ALT_FSLASH,     -1,             ALT_PADSTAR,
+    -1,             -1,             -1,             KEY_F(1),
+    KEY_F(2),       KEY_F(3),       KEY_F(4),       KEY_F(5),
+    KEY_F(6),       KEY_F(7),       KEY_F(8),       KEY_F(9),
+    KEY_F(10),      -1,             -1,             KEY_HOME,
+    KEY_UP,         KEY_PPAGE,      ALT_PADMINUS,   KEY_LEFT,
+    KEY_B2,         KEY_RIGHT,      ALT_PADPLUS,    KEY_END,
+    KEY_DOWN,       KEY_NPAGE,      KEY_IC,         KEY_DC,
+    KEY_F(13),      KEY_F(14),      KEY_F(15),      KEY_F(16),
+    KEY_F(17),      KEY_F(18),      KEY_F(19),      KEY_F(20),
+    KEY_F(21),      KEY_F(22),      KEY_F(25),      KEY_F(26),
+    KEY_F(27),      KEY_F(28),      KEY_F(29),      KEY_F(30),
+    KEY_F(31),      KEY_F(32),      KEY_F(33),      KEY_F(34),
+    KEY_F(37),      KEY_F(38),      KEY_F(39),      KEY_F(40),
+    KEY_F(41),      KEY_F(42),      KEY_F(43),      KEY_F(44),
+    KEY_F(45),      KEY_F(46),      -1,             CTL_LEFT,
+    CTL_RIGHT,      CTL_END,        CTL_PGDN,       CTL_HOME,
+    ALT_1,          ALT_2,          ALT_3,          ALT_4,
+    ALT_5,          ALT_6,          ALT_7,          ALT_8,
+    ALT_9,          ALT_0,          ALT_MINUS,      ALT_EQUAL,
+    CTL_PGUP,       KEY_F(11),      KEY_F(12),      KEY_F(23),
+    KEY_F(24),      KEY_F(35),      KEY_F(36),      KEY_F(47),
+    KEY_F(48),      CTL_UP,         CTL_PADMINUS,   CTL_PADCENTER,
+    CTL_PADPLUS,    CTL_DOWN,       CTL_INS,        CTL_DEL,
+    CTL_TAB,        CTL_PADSLASH,   CTL_PADSTAR,    ALT_HOME,
+    ALT_UP,         ALT_PGUP,       -1,             ALT_LEFT,
+    -1,             ALT_RIGHT,      -1,             ALT_END,
+    ALT_DOWN,       ALT_PGDN,       ALT_INS,        ALT_DEL,
+    ALT_PADSLASH,   ALT_TAB,        ALT_PADENTER,   -1
+};
+
+unsigned long pdc_key_modifiers = 0L;
+
+static struct {unsigned short pressed, released;} button[3];
+
+static bool mouse_avail = FALSE, mouse_vis = FALSE, mouse_moved = FALSE,
+            mouse_button = FALSE, key_pressed = FALSE;
+
+static unsigned char mouse_scroll = 0;
+static PDCREGS ms_regs, old_ms;
+static unsigned short shift_status, old_shift = 0;
+static unsigned char keyboard_function = 0xff, shift_function = 0xff,
+                     check_function = 0xff;
+
+static const unsigned short button_map[3] = {0, 2, 1};
+
+unsigned long PDC_get_input_fd(void)
+{
+    PDC_LOG(("PDC_get_input_fd() - called\n"));
+
+    return (unsigned long)fileno(stdin);
+}
+
+void PDC_set_keyboard_binary(bool on)
+{
+    PDC_LOG(("PDC_set_keyboard_binary() - called\n"));
+
+#ifdef __DJGPP__
+    setmode(fileno(stdin), on ? O_BINARY : O_TEXT);
+    signal(SIGINT, on ? SIG_IGN : SIG_DFL);
+#endif
+}
+
+/* check if a key or mouse event is waiting */
+
+bool PDC_check_key(void)
+{
+    PDCREGS regs;
+
+    if (shift_function == 0xff)
+    {
+        int scan;
+
+        /* get shift status for all keyboards */
+
+        regs.h.ah = 0x02;
+        PDCINT(0x16, regs);
+        scan = regs.h.al;
+
+        /* get shift status for enhanced keyboards */
+
+        regs.h.ah = 0x12;
+        PDCINT(0x16, regs);
+
+        if (scan == regs.h.al && getdosmembyte(0x496) == 0x10)
+        {
+            keyboard_function = 0x10;
+            check_function = 0x11;
+            shift_function = 0x12;
+        }
+        else
+        {
+            keyboard_function = 0;
+            check_function = 1;
+            shift_function = 2;
+        }
+    }
+
+    regs.h.ah = shift_function;
+    PDCINT(0x16, regs);
+
+    shift_status = regs.W.ax;
+
+    if (mouse_vis)
+    {
+        unsigned short i;
+
+        ms_regs.W.ax = 3;
+        PDCINT(0x33, ms_regs);
+
+        mouse_button = FALSE;
+
+        for (i = 0; i < 3; i++)
+        {
+            regs.W.ax = 6;
+            regs.W.bx = button_map[i];
+            PDCINT(0x33, regs);
+            button[i].released = regs.W.bx;
+            if (regs.W.bx)
+            {
+                ms_regs.W.cx = regs.W.cx;
+                ms_regs.W.dx = regs.W.dx;
+                mouse_button = TRUE;
+            }
+
+            regs.W.ax = 5;
+            regs.W.bx = button_map[i];
+            PDCINT(0x33, regs);
+            button[i].pressed = regs.W.bx;
+            if (regs.W.bx)
+            {
+                ms_regs.W.cx = regs.W.cx;
+                ms_regs.W.dx = regs.W.dx;
+                mouse_button = TRUE;
+            }
+        }
+
+        mouse_scroll = ms_regs.h.bh;
+
+        mouse_moved = !mouse_button && ms_regs.h.bl &&
+                       ms_regs.h.bl == old_ms.h.bl &&
+                    (((ms_regs.W.cx ^ old_ms.W.cx) >> 3) ||
+                     ((ms_regs.W.dx ^ old_ms.W.dx) >> 3));
+
+        if (mouse_scroll || mouse_button || mouse_moved)
+            return TRUE;
+    }
+
+    if (old_shift && !shift_status)     /* modifier released */
+    {
+        if (!key_pressed && SP->return_key_modifiers)
+            return TRUE;
+    }
+    else if (!old_shift && shift_status)    /* modifier pressed */
+        key_pressed = FALSE;
+
+    old_shift = shift_status;
+
+#ifndef USE_KBHIT
+    regs.h.ah = check_function;
+    PDCINT(0x16, regs);
+
+    return !(regs.W.flags & 64);
+#else
+    return kbhit();
+#endif
+}
+
+static int _process_mouse_events(void)
+{
+    int i;
+    short shift_flags = 0;
+
+    memset(&pdc_mouse_status, 0, sizeof(pdc_mouse_status));
+
+    key_pressed = TRUE;
+    old_shift = shift_status;
+    SP->key_code = TRUE;
+
+    /* Set shift modifiers */
+
+    if (shift_status & 3)
+        shift_flags |= BUTTON_SHIFT;
+
+    if (shift_status & 4)
+        shift_flags |= BUTTON_CONTROL;
+
+    if (shift_status & 8)
+        shift_flags |= BUTTON_ALT;
+
+    /* Scroll wheel support for CuteMouse */
+
+    if (mouse_scroll)
+    {
+        pdc_mouse_status.changes = mouse_scroll & 0x80 ?
+            PDC_MOUSE_WHEEL_UP : PDC_MOUSE_WHEEL_DOWN;
+
+        pdc_mouse_status.x = -1;
+        pdc_mouse_status.y = -1;
+
+        return KEY_MOUSE;
+    }
+
+    if (mouse_moved)
+    {
+        pdc_mouse_status.changes = PDC_MOUSE_MOVED;
+
+        for (i = 0; i < 3; i++)
+        {
+            if (ms_regs.h.bl & (1 << button_map[i]))
+            {
+                pdc_mouse_status.button[i] = BUTTON_MOVED | shift_flags;
+                pdc_mouse_status.changes |= (1 << i);
+            }
+        }
+    }
+    else    /* button event */
+    {
+        for (i = 0; i < 3; i++)
+        {
+            if (button[i].pressed)
+            {
+                /* Check for a click -- a PRESS followed 
+                   immediately by a release */
+
+                if (!button[i].released)
+                {
+                    if (SP->mouse_wait)
+                    {
+                        PDCREGS regs;
+
+                        napms(SP->mouse_wait);
+
+                        regs.W.ax = 6;
+                        regs.W.bx = button_map[i];
+                        PDCINT(0x33, regs);
+
+                        pdc_mouse_status.button[i] = regs.W.bx ?
+                            BUTTON_CLICKED : BUTTON_PRESSED;
+                    }
+                    else
+                        pdc_mouse_status.button[i] = BUTTON_PRESSED;
+                }
+                else
+                    pdc_mouse_status.button[i] = BUTTON_CLICKED;
+            }
+
+            if (button[i].pressed || button[i].released)
+            {
+                pdc_mouse_status.button[i] |= shift_flags;
+                pdc_mouse_status.changes |= (1 << i);
+            }
+        }
+    }
+
+    pdc_mouse_status.x = ms_regs.W.cx >> 3;
+    pdc_mouse_status.y = ms_regs.W.dx >> 3;
+
+    old_ms = ms_regs;
+
+    return KEY_MOUSE;
+}
+
+/* return the next available key or mouse event */
+
+int PDC_get_key(void)
+{
+    PDCREGS regs;
+    int key, scan;
+
+    pdc_key_modifiers = 0;
+
+    if (mouse_vis && (mouse_scroll || mouse_button || mouse_moved))
+        return _process_mouse_events();
+
+    /* Return modifiers as keys? */
+
+    if (old_shift && !shift_status)
+    {
+        key = -1;
+
+        if (old_shift & 1)
+            key = KEY_SHIFT_R;
+
+        if (old_shift & 2)
+            key = KEY_SHIFT_L;
+
+        if (shift_function == 0x12)
+        {
+            if (old_shift & 0x400)
+                key = KEY_CONTROL_R;
+
+            if (old_shift & 0x100)
+                key = KEY_CONTROL_L;
+
+            if (old_shift & 0x800)
+                key = KEY_ALT_R;
+
+            if (old_shift & 0x200)
+                key = KEY_ALT_L;
+        }
+        else
+        {
+            if (old_shift & 4)
+                key = KEY_CONTROL_R;
+
+            if (old_shift & 8)
+                key = KEY_ALT_R;
+        }
+
+        key_pressed = FALSE;
+        old_shift = shift_status;
+
+        SP->key_code = TRUE;
+        return key;
+    }
+
+    regs.h.ah = keyboard_function;
+    PDCINT(0x16, regs);
+    key = regs.h.al;
+    scan = regs.h.ah;
+
+    if (SP->save_key_modifiers)
+    {
+        if (shift_status & 3)
+            pdc_key_modifiers |= PDC_KEY_MODIFIER_SHIFT;
+
+        if (shift_status & 4)
+            pdc_key_modifiers |= PDC_KEY_MODIFIER_CONTROL;
+
+        if (shift_status & 8)
+            pdc_key_modifiers |= PDC_KEY_MODIFIER_ALT;
+
+        if (shift_status & 0x20)
+            pdc_key_modifiers |= PDC_KEY_MODIFIER_NUMLOCK;
+    }
+
+    if (scan == 0x1c && key == 0x0a)    /* ^Enter */
+        key = CTL_ENTER;
+    else if (scan == 0xe0 && key == 0x0d)   /* PadEnter */
+        key = PADENTER;
+    else if (scan == 0xe0 && key == 0x0a)   /* ^PadEnter */
+        key = CTL_PADENTER;
+    else if (scan == 0x37 && key == 0x2a)   /* Star */
+        key = PADSTAR;
+    else if (scan == 0x4a && key == 0x2d)   /* Minus */
+        key = PADMINUS;
+    else if (scan == 0x4e && key == 0x2b)   /* Plus */
+        key = PADPLUS;
+    else if (scan == 0xe0 && key == 0x2f)   /* Slash */
+        key = PADSLASH;
+    else if (key == 0x00 || (key == 0xe0 && scan > 53 && scan != 86))
+        key = (scan > 0xa7) ? -1 : key_table[scan];
+
+    if (shift_status & 3)
+    {
+        switch (key)
+        {
+        case KEY_HOME:  /* Shift Home */
+            key = KEY_SHOME;
+            break;
+        case KEY_UP:    /* Shift Up */
+            key = KEY_SUP;
+            break;
+        case KEY_PPAGE: /* Shift PgUp */
+            key = KEY_SPREVIOUS;
+            break;
+        case KEY_LEFT:  /* Shift Left */
+            key = KEY_SLEFT;
+            break;
+        case KEY_RIGHT: /* Shift Right */
+            key = KEY_SRIGHT;
+            break;
+        case KEY_END:   /* Shift End */
+            key = KEY_SEND;
+            break;
+        case KEY_DOWN:  /* Shift Down */
+            key = KEY_SDOWN;
+            break;
+        case KEY_NPAGE: /* Shift PgDn */
+            key = KEY_SNEXT;
+            break;
+        case KEY_IC:    /* Shift Ins */
+            key = KEY_SIC;
+            break;
+        case KEY_DC:    /* Shift Del */
+            key = KEY_SDC;
+        }
+    }
+
+    key_pressed = TRUE;
+    SP->key_code = ((unsigned)key >= 256);
+
+    return key;
+}
+
+/* discard any pending keyboard or mouse input -- this is the core 
+   routine for flushinp() */
+
+void PDC_flushinp(void)
+{
+    PDC_LOG(("PDC_flushinp() - called\n"));
+
+    /* Force the BIOS keyboard buffer head and tail pointers to be 
+       the same...  Real nasty trick... */
+
+    setdosmemword(0x41a, getdosmemword(0x41c));
+}
+
+int PDC_mouse_set(void)
+{
+    PDCREGS regs;
+    unsigned long mbe = SP->_trap_mbe;
+
+    if (mbe && !mouse_avail)
+    {
+        regs.W.ax = 0;
+        PDCINT(0x33, regs);
+
+        mouse_avail = !!(regs.W.ax);
+    }
+
+    if (mbe)
+    {
+        if (mouse_avail && !mouse_vis)
+        {
+            memset(&old_ms, 0, sizeof(old_ms));
+
+            regs.W.ax = 1;
+            PDCINT(0x33, regs);
+
+            mouse_vis = TRUE;
+        }
+    }
+    else
+    {
+        if (mouse_avail && mouse_vis)
+        {
+            regs.W.ax = 2;
+            PDCINT(0x33, regs);
+
+            mouse_vis = FALSE;
+        }
+    }
+
+    return (mouse_avail || !mbe) ? OK : ERR;
+}
+
+int PDC_modifiers_set(void)
+{
+    key_pressed = FALSE;
+
+    return OK;
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcscrn.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcscrn.c
new file mode 100644
index 0000000000..ddfb095677
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcscrn.c
@@ -0,0 +1,757 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcscrn.c,v 1.89 2008/07/13 16:08:17 wmcbrine Exp $")
+
+#include <stdlib.h>
+
+#ifdef CHTYPE_LONG
+# define PDC_OFFSET 32
+#else
+# define PDC_OFFSET  8
+#endif
+
+/* COLOR_PAIR to attribute encoding table. */
+
+unsigned char *pdc_atrtab = (unsigned char *)NULL;
+
+int pdc_adapter;         /* screen type */
+int pdc_scrnmode;        /* default screen mode */
+int pdc_font;            /* default font size */
+bool pdc_direct_video;   /* allow direct screen memory writes */
+bool pdc_bogus_adapter;  /* TRUE if adapter has insane values */
+unsigned pdc_video_seg;  /* video base segment */
+unsigned pdc_video_ofs;  /* video base offset */
+
+static short curstoreal[16], realtocurs[16] =
+{
+    COLOR_BLACK, COLOR_BLUE, COLOR_GREEN, COLOR_CYAN, COLOR_RED,
+    COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE, COLOR_BLACK + 8,
+    COLOR_BLUE + 8, COLOR_GREEN + 8, COLOR_CYAN + 8, COLOR_RED + 8,
+    COLOR_MAGENTA + 8, COLOR_YELLOW + 8, COLOR_WHITE + 8
+};
+
+static bool sizeable = FALSE;   /* TRUE if adapter is resizeable    */
+
+static unsigned short *saved_screen = NULL;
+static int saved_lines = 0;
+static int saved_cols = 0;
+
+static int saved_scrnmode[3];
+static int saved_font[3];
+
+/* Thanks to Jeff Duntemann, K16RA for providing the impetus
+   (through the Dr. Dobbs Journal, March 1989 issue) for getting
+   the routines below merged into Bjorn Larsson's PDCurses 1.3...
+    -- frotz@dri.com    900730 */
+
+/* _get_font() - Get the current font size */
+
+static int _get_font(void)
+{
+    int retval;
+
+    retval = getdosmemword(0x485);
+
+    /* Assume the MDS Genius is in 66 line mode. */
+
+    if ((retval == 0) && (pdc_adapter == _MDS_GENIUS))
+        retval = _FONT15;
+
+    switch (pdc_adapter)
+    {
+    case _MDA:
+        retval = 10;    /* POINTS is not certain on MDA/Hercules */
+        break;
+
+    case _EGACOLOR:
+    case _EGAMONO:
+        switch (retval)
+        {
+        case _FONT8:
+        case _FONT14:
+            break;
+        default:
+            retval = _FONT14;
+        }
+        break;
+
+    case _CGA:
+        retval = _FONT8;
+    }
+
+    return retval;
+}
+
+/* _set_font() - Sets the current font size, if the adapter allows such a 
+   change. It is an error to attempt to change the font size on a 
+   "bogus" adapter. The reason for this is that we have a known video 
+   adapter identity problem. e.g. Two adapters report the same identifying 
+   characteristics. */
+
+static void _set_font(int size)
+{
+    PDCREGS regs;
+
+    if (pdc_bogus_adapter)
+        return;
+
+    switch (pdc_adapter)
+    {
+    case _CGA:
+    case _MDA:
+    case _MCGACOLOR:
+    case _MCGAMONO:
+    case _MDS_GENIUS:
+        break;
+
+    case _EGACOLOR:
+    case _EGAMONO:
+        if (sizeable && (pdc_font != size))
+        {
+            switch (size)
+            {
+            case _FONT8:
+                regs.W.ax = 0x1112;
+                regs.h.bl = 0x00;
+                PDCINT(0x10, regs);
+                break;
+            case _FONT14:
+                regs.W.ax = 0x1111;
+                regs.h.bl = 0x00;
+                PDCINT(0x10, regs);
+            }
+        }
+        break;
+
+    case _VGACOLOR:
+    case _VGAMONO:
+        if (sizeable && (pdc_font != size))
+        {
+            switch (size)
+            {
+            case _FONT8:
+                regs.W.ax = 0x1112;
+                regs.h.bl = 0x00;
+                PDCINT(0x10, regs);
+                break;
+            case _FONT14:
+                regs.W.ax = 0x1111;
+                regs.h.bl = 0x00;
+                PDCINT(0x10, regs);
+                break;
+            case _FONT16:
+                regs.W.ax = 0x1114;
+                regs.h.bl = 0x00;
+                PDCINT(0x10, regs);
+            }
+        }
+    }
+
+    curs_set(SP->visibility);
+
+    pdc_font = _get_font();
+}
+
+/* _set_80x25() - force a known screen state: 80x25 text mode. Forces the 
+   appropriate 80x25 alpha mode given the display adapter. */
+
+static void _set_80x25(void)
+{
+    PDCREGS regs;
+
+    switch (pdc_adapter)
+    {
+    case _CGA:
+    case _EGACOLOR:
+    case _EGAMONO:
+    case _VGACOLOR:
+    case _VGAMONO:
+    case _MCGACOLOR:
+    case _MCGAMONO:
+        regs.h.ah = 0x00;
+        regs.h.al = 0x03;
+        PDCINT(0x10, regs);
+        break;
+    case _MDA:
+        regs.h.ah = 0x00;
+        regs.h.al = 0x07;
+        PDCINT(0x10, regs);
+    }
+}
+
+/* _get_scrn_mode() - Return the current BIOS video mode */
+
+static int _get_scrn_mode(void)
+{
+    PDCREGS regs;
+
+    regs.h.ah = 0x0f;
+    PDCINT(0x10, regs);
+
+    return (int)regs.h.al;
+}
+
+/* _set_scrn_mode() - Sets the BIOS Video Mode Number only if it is 
+   different from the current video mode. */
+
+static void _set_scrn_mode(int new_mode)
+{
+    PDCREGS regs;
+
+    if (_get_scrn_mode() != new_mode)
+    {
+        regs.h.ah = 0;
+        regs.h.al = (unsigned char) new_mode;
+        PDCINT(0x10, regs);
+    }
+
+    pdc_font = _get_font();
+    pdc_scrnmode = new_mode;
+    LINES = PDC_get_rows();
+    COLS = PDC_get_columns();
+}
+
+/* _sanity_check() - A video adapter identification sanity check. This 
+   routine will force sane values for various control flags. */
+
+static int _sanity_check(int adapter)
+{
+    int fontsize = _get_font();
+    int rows = PDC_get_rows();
+
+    PDC_LOG(("_sanity_check() - called: Adapter %d\n", adapter));
+
+    switch (adapter)
+    {
+    case _EGACOLOR:
+    case _EGAMONO:
+        switch (rows)
+        {
+        case 25:
+        case 43:    
+            break;
+        default:
+            pdc_bogus_adapter = TRUE;
+        }
+
+        switch (fontsize)
+        {
+        case _FONT8:
+        case _FONT14:
+            break;
+        default:
+            pdc_bogus_adapter = TRUE;
+        }
+        break;
+
+    case _VGACOLOR:
+    case _VGAMONO:
+        break;
+
+    case _CGA:
+    case _MDA:
+    case _MCGACOLOR:
+    case _MCGAMONO:
+        switch (rows)
+        {
+        case 25:
+            break;
+        default:
+            pdc_bogus_adapter = TRUE;
+        }
+        break;
+
+    default:
+        pdc_bogus_adapter = TRUE;
+    }
+
+    if (pdc_bogus_adapter)
+    {
+        sizeable = FALSE;
+        pdc_direct_video = FALSE;
+    }
+
+    return adapter;
+}
+
+/* _query_adapter_type() - Determine PC video adapter type. */
+
+static int _query_adapter_type(void)
+{
+    PDCREGS regs;
+    int retval = _NONE;
+
+    /* thanks to paganini@ax.apc.org for the GO32 fix */
+
+#if !defined(__DJGPP__) && !defined(__WATCOMC__)
+    struct SREGS segs;
+#endif
+    short video_base = getdosmemword(0x463);
+
+    PDC_LOG(("_query_adapter_type() - called\n"));
+
+    /* attempt to call VGA Identify Adapter Function */
+
+    regs.W.ax = 0x1a00;
+    PDCINT(0x10, regs);
+
+    if ((regs.h.al == 0x1a) && (retval == _NONE))
+    {
+        /* We know that the PS/2 video BIOS is alive and well. */
+
+        switch (regs.h.al)
+        {
+        case 0:
+            retval = _NONE;
+            break;
+        case 1:
+            retval = _MDA;
+            break;
+        case 2:
+            retval = _CGA;
+            break;
+        case 4:
+            retval = _EGACOLOR;
+            sizeable = TRUE;
+            break;
+        case 5:
+            retval = _EGAMONO;
+            break;
+        case 26:            /* ...alt. VGA BIOS... */
+        case 7:
+            retval = _VGACOLOR;
+            sizeable = TRUE;
+            break;
+        case 8:
+            retval = _VGAMONO;
+            break;
+        case 10:
+        case 13:
+            retval = _MCGACOLOR;
+            break;
+        case 12:
+            retval = _MCGAMONO;
+            break;
+        default:
+            retval = _CGA;
+        }
+    }
+    else
+    {
+        /* No VGA BIOS, check for an EGA BIOS by selecting an
+           Alternate Function Service...
+
+           bx == 0x0010 --> return EGA information */
+
+        regs.h.ah = 0x12;
+        regs.W.bx = 0x10;
+        PDCINT(0x10, regs);
+
+        if ((regs.h.bl != 0x10) && (retval == _NONE))
+        {
+            /* An EGA BIOS exists */
+
+            regs.h.ah = 0x12;
+            regs.h.bl = 0x10;
+            PDCINT(0x10, regs);
+
+            if (regs.h.bh == 0)
+                retval = _EGACOLOR;
+            else
+                retval = _EGAMONO;
+        }
+        else if (retval == _NONE)
+        {
+            /* Now we know we only have CGA or MDA */
+
+            PDCINT(0x11, regs);
+
+            switch (regs.h.al & 0x30)
+            {
+            case 0x10:
+            case 0x20:
+                retval = _CGA;
+                break;
+            case 0x30:
+                retval = _MDA;
+                break;
+            default:
+                retval = _NONE;
+            }
+        }
+    }
+
+    if (video_base == 0x3d4)
+    {
+        pdc_video_seg = 0xb800;
+        switch (retval)
+        {
+        case _EGAMONO:
+            retval = _EGACOLOR;
+            break;
+        case _VGAMONO:
+            retval = _VGACOLOR;
+        }
+    }
+
+    if (video_base == 0x3b4)
+    {
+        pdc_video_seg = 0xb000;
+        switch (retval)
+        {
+        case _EGACOLOR:
+            retval = _EGAMONO;
+            break;
+        case _VGACOLOR:
+            retval = _VGAMONO;
+        }
+    }
+
+    if ((retval == _NONE)
+#ifndef CGA_DIRECT
+    ||  (retval == _CGA)
+#endif
+    )
+        pdc_direct_video = FALSE;
+
+    if ((unsigned)pdc_video_seg == 0xb000)
+        SP->mono = TRUE;
+    else
+        SP->mono = FALSE;
+
+    /* Check for DESQview shadow buffer
+       thanks to paganini@ax.apc.org for the GO32 fix */
+
+#ifndef __WATCOMC__
+    regs.h.ah = 0xfe;
+    regs.h.al = 0;
+    regs.x.di = pdc_video_ofs;
+# ifdef __DJGPP__
+    regs.x.es = pdc_video_seg;
+    __dpmi_int(0x10, &regs);
+    pdc_video_seg = regs.x.es;
+# else
+    segs.es   = pdc_video_seg;
+    int86x(0x10, &regs, &regs, &segs);
+    pdc_video_seg = segs.es;
+# endif
+    pdc_video_ofs = regs.x.di;
+#endif
+    if (!pdc_adapter)
+        pdc_adapter = retval;
+
+    return _sanity_check(retval);
+}
+
+/* close the physical screen -- may restore the screen to its state 
+   before PDC_scr_open(); miscellaneous cleanup */
+
+void PDC_scr_close(void)
+{
+#if SMALL || MEDIUM
+# ifndef __PACIFIC__
+    struct SREGS segregs;
+# endif
+    int ds;
+#endif
+    PDC_LOG(("PDC_scr_close() - called\n"));
+
+    if (getenv("PDC_RESTORE_SCREEN") && saved_screen)
+    {
+#ifdef __DJGPP__
+        dosmemput(saved_screen, saved_lines * saved_cols * 2,
+            (unsigned long)_FAR_POINTER(pdc_video_seg,
+            pdc_video_ofs));
+#else
+# if (SMALL || MEDIUM)
+#  ifdef __PACIFIC__
+        ds = FP_SEG((void far *)saved_screen);
+#  else
+        segread(&segregs);
+        ds = segregs.ds;
+#  endif
+        movedata(ds, (int)saved_screen, pdc_video_seg, pdc_video_ofs,
+        (saved_lines * saved_cols * 2));
+# else
+        memcpy((void *)_FAR_POINTER(pdc_video_seg, pdc_video_ofs),
+        (void *)saved_screen, (saved_lines * saved_cols * 2));
+# endif
+#endif
+        free(saved_screen);
+        saved_screen = NULL;
+    }
+
+    reset_shell_mode();
+
+    if (SP->visibility != 1)
+        curs_set(1);
+
+    /* Position cursor to the bottom left of the screen. */
+
+    PDC_gotoyx(PDC_get_rows() - 2, 0);
+}
+
+void PDC_scr_free(void)
+{
+    if (SP)
+        free(SP);
+    if (pdc_atrtab)
+        free(pdc_atrtab);
+
+    pdc_atrtab = (unsigned char *)NULL;
+}
+
+/* open the physical screen -- allocate SP, miscellaneous intialization, 
+   and may save the existing screen for later restoration */
+
+int PDC_scr_open(int argc, char **argv)
+{
+#if SMALL || MEDIUM
+# ifndef __PACIFIC__
+    struct SREGS segregs;
+# endif
+    int ds;
+#endif
+    int i;
+
+    PDC_LOG(("PDC_scr_open() - called\n"));
+
+    SP = calloc(1, sizeof(SCREEN));
+    pdc_atrtab = calloc(PDC_COLOR_PAIRS * PDC_OFFSET, 1);
+
+    if (!SP || !pdc_atrtab)
+        return ERR;
+
+    for (i = 0; i < 16; i++)
+        curstoreal[realtocurs[i]] = i;
+
+    SP->orig_attr = FALSE;
+
+    pdc_direct_video = TRUE; /* Assume that we can */
+    pdc_video_seg = 0xb000;  /* Base screen segment addr */
+    pdc_video_ofs = 0x0;     /* Base screen segment ofs */
+
+    pdc_adapter = _query_adapter_type();
+    pdc_scrnmode = _get_scrn_mode();
+    pdc_font = _get_font();
+
+    SP->lines = PDC_get_rows();
+    SP->cols = PDC_get_columns();
+
+    SP->mouse_wait = PDC_CLICK_PERIOD;
+    SP->audible = TRUE;
+
+    /* If the environment variable PDCURSES_BIOS is set, the DOS int10() 
+       BIOS calls are used in place of direct video memory access. */
+
+    if (getenv("PDCURSES_BIOS"))
+        pdc_direct_video = FALSE;
+
+    /* This code for preserving the current screen. */
+
+    if (getenv("PDC_RESTORE_SCREEN"))
+    {
+        saved_lines = SP->lines;
+        saved_cols = SP->cols;
+
+        saved_screen = malloc(saved_lines * saved_cols * 2);
+
+        if (!saved_screen)
+        {
+            SP->_preserve = FALSE;
+            return OK;
+        }
+#ifdef __DJGPP__
+        dosmemget((unsigned long)_FAR_POINTER(pdc_video_seg, pdc_video_ofs),
+                  saved_lines * saved_cols * 2, saved_screen);
+#else
+# if SMALL || MEDIUM
+#  ifdef __PACIFIC__
+        ds = FP_SEG((void far *) saved_screen);
+#  else
+        segread(&segregs);
+        ds = segregs.ds;
+#  endif
+        movedata(pdc_video_seg, pdc_video_ofs, ds, (int)saved_screen,
+                 (saved_lines * saved_cols * 2));
+# else
+        memcpy((void *)saved_screen,
+               (void *)_FAR_POINTER(pdc_video_seg, pdc_video_ofs),
+               (saved_lines * saved_cols * 2));
+# endif
+#endif
+    }
+
+    SP->_preserve = (getenv("PDC_PRESERVE_SCREEN") != NULL);
+
+    return OK;
+}
+
+/* the core of resize_term() */
+
+int PDC_resize_screen(int nlines, int ncols)
+{
+    PDC_LOG(("PDC_resize_screen() - called. Lines: %d Cols: %d\n",
+             nlines, ncols));
+
+    /* Trash the stored value of orig_cursor -- it's only good if the 
+       video mode doesn't change */
+
+    SP->orig_cursor = 0x0607;
+
+    switch (pdc_adapter)
+    {
+    case _EGACOLOR:
+        if (nlines >= 43)
+            _set_font(_FONT8);
+        else
+            _set_80x25();
+        break;
+
+    case _VGACOLOR:
+        if (nlines > 28)
+            _set_font(_FONT8);
+        else
+            if (nlines > 25)
+                _set_font(_FONT14);
+            else
+                _set_80x25();
+    }
+
+    PDC_set_blink(COLORS == 8);
+
+    return OK;
+}
+
+void PDC_reset_prog_mode(void)
+{
+        PDC_LOG(("PDC_reset_prog_mode() - called.\n"));
+}
+
+void PDC_reset_shell_mode(void)
+{
+        PDC_LOG(("PDC_reset_shell_mode() - called.\n"));
+}
+
+void PDC_restore_screen_mode(int i)
+{
+    if (i >= 0 && i <= 2)
+    {
+        pdc_font = _get_font();
+        _set_font(saved_font[i]);
+
+        if (_get_scrn_mode() != saved_scrnmode[i])
+            _set_scrn_mode(saved_scrnmode[i]);
+    }
+}
+
+void PDC_save_screen_mode(int i)
+{
+    if (i >= 0 && i <= 2)
+    {
+        saved_font[i] = pdc_font;
+        saved_scrnmode[i] = pdc_scrnmode;
+    }
+}
+
+void PDC_init_pair(short pair, short fg, short bg)
+{
+    unsigned char att, temp_bg;
+    chtype i;
+
+    fg = curstoreal[fg];
+    bg = curstoreal[bg];
+
+    for (i = 0; i < PDC_OFFSET; i++)
+    {
+        att = fg | (bg << 4);
+
+        if (i & (A_REVERSE >> PDC_ATTR_SHIFT))
+            att = bg | (fg << 4);
+        if (i & (A_UNDERLINE >> PDC_ATTR_SHIFT))
+            att = 1;
+        if (i & (A_INVIS >> PDC_ATTR_SHIFT))
+        {
+            temp_bg = att >> 4;
+            att = temp_bg << 4 | temp_bg;
+        }
+        if (i & (A_BOLD >> PDC_ATTR_SHIFT))
+            att |= 8;
+        if (i & (A_BLINK >> PDC_ATTR_SHIFT))
+            att |= 128;
+
+        pdc_atrtab[pair * PDC_OFFSET + i] = att;
+    }
+}
+
+int PDC_pair_content(short pair, short *fg, short *bg)
+{
+    *fg = realtocurs[pdc_atrtab[pair * PDC_OFFSET] & 0x0F];
+    *bg = realtocurs[(pdc_atrtab[pair * PDC_OFFSET] & 0xF0) >> 4];
+
+    return OK;
+}
+
+/* _egapal() - Find the EGA palette value (0-63) for the color (0-15).
+   On VGA, this is an index into the DAC. */
+
+static short _egapal(short color)
+{
+    PDCREGS regs;
+
+    regs.W.ax = 0x1007;
+    regs.h.bl = curstoreal[color];
+
+    PDCINT(0x10, regs);
+
+    return regs.h.bh;
+}
+
+bool PDC_can_change_color(void)
+{
+    return (pdc_adapter == _VGACOLOR);
+}
+
+/* These are only valid when pdc_adapter == _VGACOLOR */
+
+int PDC_color_content(short color, short *red, short *green, short *blue)
+{
+    PDCREGS regs;
+
+    /* Read single DAC register */
+
+    regs.W.ax = 0x1015;
+    regs.h.bl = _egapal(color);
+
+    PDCINT(0x10, regs);
+
+    /* Scale and store */
+
+    *red = DIVROUND((unsigned)(regs.h.dh) * 1000, 63);
+    *green = DIVROUND((unsigned)(regs.h.ch) * 1000, 63);
+    *blue = DIVROUND((unsigned)(regs.h.cl) * 1000, 63);
+
+    return OK;
+}
+
+int PDC_init_color(short color, short red, short green, short blue)
+{
+    PDCREGS regs;
+
+    /* Scale */
+
+    regs.h.dh = DIVROUND((unsigned)red * 63, 1000);
+    regs.h.ch = DIVROUND((unsigned)green * 63, 1000);
+    regs.h.cl = DIVROUND((unsigned)blue * 63, 1000);
+
+    /* Set single DAC register */
+
+    regs.W.ax = 0x1010;
+    regs.W.bx = _egapal(color);
+
+    PDCINT(0x10, regs);
+
+    return OK;
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcsetsc.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcsetsc.c
new file mode 100644
index 0000000000..2180ef486c
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcsetsc.c
@@ -0,0 +1,99 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcsetsc.c,v 1.39 2008/07/13 16:08:17 wmcbrine Exp $")
+
+/*man-start**************************************************************
+
+  Name:                                                         pdcsetsc
+
+  Synopsis:
+        int PDC_set_blink(bool blinkon);
+        void PDC_set_title(const char *title);
+
+  Description:
+        PDC_set_blink() toggles whether the A_BLINK attribute sets an
+        actual blink mode (TRUE), or sets the background color to high
+        intensity (FALSE). The default is platform-dependent (FALSE in
+        most cases). It returns OK if it could set the state to match 
+        the given parameter, ERR otherwise. Current platforms also 
+        adjust the value of COLORS according to this function -- 16 for 
+        FALSE, and 8 for TRUE.
+
+        PDC_set_title() sets the title of the window in which the curses
+        program is running. This function may not do anything on some
+        platforms. (Currently it only works in Win32 and X11.)
+
+  Portability                                X/Open    BSD    SYS V
+        PDC_set_blink                           -       -       -
+        PDC_set_title                           -       -       -
+
+**man-end****************************************************************/
+
+int PDC_curs_set(int visibility)
+{
+    PDCREGS regs;
+    int ret_vis, start, end;
+
+    PDC_LOG(("PDC_curs_set() - called: visibility=%d\n", visibility));
+
+    ret_vis = SP->visibility;
+    SP->visibility = visibility;
+
+    switch (visibility)
+    {
+        case 0:  /* invisible */
+            start = 32;
+            end = 0;  /* was 32 */
+            break;
+        case 2:  /* highly visible */
+            start = 0;   /* full-height block */
+            end = 7;
+            break;
+        default:  /* normal visibility */
+            start = (SP->orig_cursor >> 8) & 0xff;
+            end = SP->orig_cursor & 0xff;
+    }
+
+    /* if scrnmode is not set, some BIOSes hang */
+
+    regs.h.ah = 0x01;
+    regs.h.al = (unsigned char)pdc_scrnmode; 
+    regs.h.ch = (unsigned char)start;
+    regs.h.cl = (unsigned char)end;
+    PDCINT(0x10, regs);
+
+    return ret_vis;
+}
+
+void PDC_set_title(const char *title)
+{
+    PDC_LOG(("PDC_set_title() - called: <%s>\n", title));
+}
+
+int PDC_set_blink(bool blinkon)
+{
+    PDCREGS regs;
+
+    switch (pdc_adapter)
+    {
+    case _EGACOLOR:
+    case _EGAMONO:
+    case _VGACOLOR:
+    case _VGAMONO:
+        regs.W.ax = 0x1003;
+        regs.W.bx = blinkon;
+
+        PDCINT(0x10, regs);
+
+        if (pdc_color_started)
+            COLORS = blinkon ? 8 : 16;
+
+        break;
+    default:
+        COLORS = 8;
+    }
+
+    return (COLORS - (blinkon * 8) != 8) ? OK : ERR;
+}
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/pdcutil.c b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcutil.c
new file mode 100644
index 0000000000..b209352a39
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/pdcutil.c
@@ -0,0 +1,105 @@
+/* Public Domain Curses */
+
+#include "pdcdos.h"
+
+RCSID("$Id: pdcutil.c,v 1.24 2008/07/13 16:08:17 wmcbrine Exp $")
+
+void PDC_beep(void)
+{
+    PDCREGS regs;
+
+    PDC_LOG(("PDC_beep() - called\n"));
+
+    regs.W.ax = 0x0e07;       /* Write ^G in TTY fashion */
+    regs.W.bx = 0;
+    PDCINT(0x10, regs);
+}
+
+void PDC_napms(int ms)
+{
+    PDCREGS regs;
+    long goal, start, current;
+
+    PDC_LOG(("PDC_napms() - called: ms=%d\n", ms));
+
+    goal = DIVROUND((long)ms, 50);
+    if (!goal)
+        goal++;
+
+    start = getdosmemdword(0x46c);
+
+    goal += start;
+
+    while (goal > (current = getdosmemdword(0x46c)))
+    {
+        if (current < start)    /* in case of midnight reset */
+            return;
+
+        regs.W.ax = 0x1680;
+        PDCINT(0x2f, regs);
+        PDCINT(0x28, regs);
+    }
+}
+
+const char *PDC_sysname(void)
+{
+    return "DOS";
+}
+
+#ifdef __DJGPP__
+
+unsigned char getdosmembyte(int offset)
+{
+    unsigned char b;
+
+    dosmemget(offset, sizeof(unsigned char), &b);
+    return b;
+}
+
+unsigned short getdosmemword(int offset)
+{
+    unsigned short w;
+
+    dosmemget(offset, sizeof(unsigned short), &w);
+    return w;
+}
+
+unsigned long getdosmemdword(int offset)
+{
+    unsigned long dw;
+
+    dosmemget(offset, sizeof(unsigned long), &dw);
+    return dw;
+}
+
+void setdosmembyte(int offset, unsigned char b)
+{
+    dosmemput(&b, sizeof(unsigned char), offset);
+}
+
+void setdosmemword(int offset, unsigned short w)
+{
+    dosmemput(&w, sizeof(unsigned short), offset);
+}
+
+#endif
+
+#if defined(__WATCOMC__) && defined(__386__)
+
+void PDC_dpmi_int(int vector, pdc_dpmi_regs *rmregs)
+{
+    union REGPACK regs = {0};
+
+    rmregs->w.ss = 0;
+    rmregs->w.sp = 0;
+    rmregs->w.flags = 0;
+
+    regs.w.ax = 0x300;
+    regs.h.bl = vector;
+    regs.x.edi = FP_OFF(rmregs);
+    regs.x.es = FP_SEG(rmregs);
+
+    intr(0x31, &regs);
+}
+
+#endif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos16.mak b/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos16.mak
new file mode 100644
index 0000000000..a0cbb22327
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos16.mak
@@ -0,0 +1,48 @@
+# Watcom WMAKE Makefile for PDCurses library - DOS (16 bit) Watcom C/C++ 10.6+
+#
+# Usage: wmake -f [path\]wccdos16.mak [DEBUG=Y] [target]
+#
+# where target can be any of:
+# [all|demos|pdcurses.lib|testcurs.exe...]
+
+# Change the memory MODEL here, if desired
+MODEL		= l
+
+!ifdef %PDCURSES_SRCDIR
+PDCURSES_SRCDIR	= $(%PDCURSES_SRCDIR)
+!else
+PDCURSES_SRCDIR	= ..
+!endif
+
+!include $(PDCURSES_SRCDIR)\version.mif
+
+osdir		= $(PDCURSES_SRCDIR)\dos
+
+CC		= wcc
+TARGET		= dos
+
+CFLAGS		= /bt=$(TARGET) /zq /wx /m$(MODEL) /i=$(PDCURSES_SRCDIR)
+
+!ifeq DEBUG Y
+CFLAGS  	+= /d2 /DPDCDEBUG
+LDFLAGS 	= D W A op q sys $(TARGET)
+!else
+CFLAGS  	+= /oneatx
+LDFLAGS 	= op q sys $(TARGET)
+!endif
+
+LIBEXE		= wlib /q /n /t
+
+!include $(PDCURSES_SRCDIR)\watcom.mif
+
+$(LIBCURSES) : $(LIBOBJS) $(PDCOBJS)
+	%write wccdos.lrf $(LIBOBJS) $(PDCOBJS)
+	$(LIBEXE) $@ @wccdos.lrf
+	-del wccdos.lrf
+	-copy $(LIBCURSES) panel.lib
+
+PLATFORM1	= Watcom C++ 16-bit DOS
+PLATFORM2	= Open Watcom 1.6 for 16-bit DOS
+ARCNAME		= pdc$(VER)16w
+
+!include $(PDCURSES_SRCDIR)\makedist.mif
diff --git a/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos4g.mak b/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos4g.mak
new file mode 100644
index 0000000000..e1ba1cdeca
--- /dev/null
+++ b/payloads/libpayload/curses/PDCurses-3.4/dos/wccdos4g.mak
@@ -0,0 +1,45 @@
+# Watcom WMAKE Makefile for PDCurses library - DOS/4GW Watcom C/C++ 10.6+
+#
+# Usage: wmake -f [path\]wccdos4g.mak [DEBUG=Y] [target]
+#
+# where target can be any of:
+# [all|demos|pdcurses.lib|testcurs.exe...]
+
+!ifdef %PDCURSES_SRCDIR
+PDCURSES_SRCDIR	= $(%PDCURSES_SRCDIR)
+!else
+PDCURSES_SRCDIR	= ..
+!endif
+
+!include $(PDCURSES_SRCDIR)\version.mif
+
+osdir		= $(PDCURSES_SRCDIR)\dos
+
+CC		= wcc386
+TARGET		= dos4g
+
+CFLAGS		= /bt=$(TARGET) /zq /wx /mf /i=$(PDCURSES_SRCDIR)
+
+!ifeq DEBUG Y
+CFLAGS  	+= /d2 /DPDCDEBUG
+LDFLAGS 	= D W A op q sys $(TARGET)
+!else
+CFLAGS  	+= /oneatx
+LDFLAGS 	= op q sys $(TARGET)
+!endif
+
+LIBEXE		= wlib /q /n /t
+
+!include $(PDCURSES_SRCDIR)\watcom.mif
+
+$(LIBCURSES) : $(LIBOBJS) $(PDCOBJS)
+	%write wccdos.lrf $(LIBOBJS) $(PDCOBJS)
+	$(LIBEXE) $@ @wccdos.lrf
+	-del wccdos.lrf
+	-copy $(LIBCURSES) panel.lib
+
+PLATFORM1	= Watcom C++ 32-bit DOS
+PLATFORM2	= Open Watcom 1.6 for 32-bit DOS
+ARCNAME		= pdc$(VER)32w
+
+!include $(PDCURSES_SRCDIR)\makedist.mif