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diff --git a/gnu/lib/libdialog/COPYING b/gnu/lib/libdialog/COPYING
new file mode 100644
index 0000000..a43ea21
--- /dev/null
+++ b/gnu/lib/libdialog/COPYING
@@ -0,0 +1,339 @@
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                          675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
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+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
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+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
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+    customarily used for software interchange; or,
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+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
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+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
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+If distribution of executable or object code is made by offering
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+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
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+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	Appendix: How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) 19yy  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) 19yy name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
diff --git a/gnu/lib/libdialog/Makefile b/gnu/lib/libdialog/Makefile
new file mode 100644
index 0000000..06f73bf
--- /dev/null
+++ b/gnu/lib/libdialog/Makefile
@@ -0,0 +1,17 @@
+# Makefile for libdialog
+# $Id: Makefile,v 1.2 1994/10/09 00:46:16 pst Exp $
+
+LIB=    dialog
+SRCS=   kernel.c rc.c checklist.c inputbox.c menubox.c msgbox.c \
+	radiolist.c textbox.c yesno.c
+
+CFLAGS+= -Wall -Wstrict-prototypes -DHAVE_NCURSES -DLOCALE
+
+SHARED_LDADD+= -lncurses -lmytinfo
+
+beforeinstall:
+	-cd ${.CURDIR}; cmp -s dialog.h ${DESTDIR}/usr/include/dialog.h || \
+	    install -c -o ${BINOWN} -g ${BINGRP} -m 444 dialog.h \
+	    ${DESTDIR}/usr/include
+
+.include <bsd.lib.mk>
diff --git a/gnu/lib/libdialog/README b/gnu/lib/libdialog/README
new file mode 100644
index 0000000..ce66cf2
--- /dev/null
+++ b/gnu/lib/libdialog/README
@@ -0,0 +1,7 @@
+This library splitted out from 'dialog' program for use inside
+C-programs. For interface function list see dialog.h.
+For usage examples see 'dialog' program sources itself into
+/usr/src/gnu/usr.bin/dialog.
+You can additionly use any ncurses functions after init_dialog().
+
+							Ache.
diff --git a/gnu/lib/libdialog/checklist.c b/gnu/lib/libdialog/checklist.c
new file mode 100644
index 0000000..78a6b95
--- /dev/null
+++ b/gnu/lib/libdialog/checklist.c
@@ -0,0 +1,357 @@
+/*
+ *  checklist.c -- implements the checklist box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected);
+
+
+static int list_width, check_x, item_x;
+
+
+/*
+ * Display a dialog box with a list of options that can be turned on or off
+ */
+int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, int width, int list_height, int item_no, unsigned char **items, unsigned char *result)
+{
+  int i, x, y, cur_x, cur_y, box_x, box_y, key = 0, button = 0, choice = 0,
+      scroll = 0, max_choice, *status;
+  WINDOW *dialog, *list;
+
+  /* Allocate space for storing item on/off status */
+  if ((status = malloc(sizeof(int)*item_no)) == NULL) {
+    endwin();
+    fprintf(stderr, "\nCan't allocate memory in dialog_checklist().\n");
+    exit(-1);
+  }
+  /* Initializes status */
+  for (i = 0; i < item_no; i++)
+    status[i] = !strcasecmp(items[i*3 + 2], "on");
+
+  max_choice = MIN(list_height, item_no);
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+  
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width, 1, 3);
+
+  list_width = width-6;
+  getyx(dialog, cur_y, cur_x);
+  box_y = cur_y + 1;
+  box_x = (width - list_width)/2 - 1;
+
+  /* create new window for the list */
+  list = subwin(dialog, list_height, list_width, y + box_y + 1, x + box_x + 1);
+  keypad(list, TRUE);
+
+  /* draw a box around the list items */
+  draw_box(dialog, box_y, box_x, list_height+2, list_width+2, menubox_border_attr, menubox_attr);
+
+  check_x = 0;
+  item_x = 0;
+  /* Find length of longest item in order to center checklist */
+  for (i = 0; i < item_no; i++) {
+    check_x = MAX(check_x, strlen(items[i*3]) + strlen(items[i*3 + 1]) + 6);
+    item_x = MAX(item_x, strlen(items[i*3]));
+  }
+  check_x = (list_width - check_x) / 2;
+  item_x = check_x + item_x + 6;
+
+  /* Print the list */
+  for (i = 0; i < max_choice; i++)
+    print_item(list, items[i*3], items[i*3 + 1], status[i], i, i == choice);
+  wnoutrefresh(list);
+
+  if (list_height < item_no) {
+    wattrset(dialog, darrow_attr);
+    wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+    waddch(dialog, ACS_DARROW);
+    wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+    waddstr(dialog, "(+)");
+  }
+
+  x = width/2-11;
+  y = height-2;
+  print_button(dialog, "Cancel", y, x+14, FALSE);
+  print_button(dialog, "  OK  ", y, x, TRUE);
+  wrefresh(dialog);
+
+  while (key != ESC) {
+    key = wgetch(dialog);
+    /* Check if key pressed matches first character of any item tag in list */
+    for (i = 0; i < max_choice; i++)
+      if (key < 0x100 && toupper(key) == toupper(items[(scroll+i)*3][0]))
+        break;
+
+    if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || 
+        key == KEY_UP || key == KEY_DOWN || key == ' ' ||
+        key == '+' || key == '-' ) {
+      if (key >= '1' && key <= MIN('9', '0'+max_choice))
+        i = key - '1';
+      else if (key == KEY_UP || key == '-') {
+        if (!choice) {
+          if (scroll) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll--;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint list to scroll down */
+            for (i = 0; i < max_choice; i++)
+              print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice);
+
+#else
+
+            /* Scroll list down */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (list_height > 1) {
+              /* De-highlight current first item before scrolling down */
+              print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, FALSE);
+              scrollok(list, TRUE);
+              wscrl(list, -1);
+              scrollok(list, FALSE);
+            }
+            scroll--;
+            print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, TRUE);
+#endif
+            wnoutrefresh(list);
+
+            /* print the up/down arrows */
+            wmove(dialog, box_y, box_x + check_x + 5);
+            wattrset(dialog, scroll ? uarrow_attr : menubox_attr);
+            waddch(dialog, scroll ? ACS_UARROW : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 6);
+            waddch(dialog, scroll ? '(' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 7);
+            waddch(dialog, scroll ? '-' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 8);
+            waddch(dialog, scroll ? ')' : ACS_HLINE);
+            wattrset(dialog, darrow_attr);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+            waddch(dialog, ACS_DARROW);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+            waddch(dialog, '(');
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 7);
+            waddch(dialog, '+');
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 8);
+            waddch(dialog, ')');
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice - 1;
+      }
+      else if (key == KEY_DOWN || key == '+') {
+        if (choice == max_choice - 1) {
+          if (scroll+choice < item_no-1) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll++;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint list to scroll up */
+            for (i = 0; i < max_choice; i++)
+              print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice);
+
+#else
+
+            /* Scroll list up */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (list_height > 1) {
+              /* De-highlight current last item before scrolling up */
+              print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1], status[scroll+max_choice-1], max_choice-1, FALSE);
+              scrollok(list, TRUE);
+              scroll(list);
+              scrollok(list, FALSE);
+            }
+            scroll++;
+            print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1], status[scroll+max_choice-1], max_choice-1, TRUE);
+#endif
+            wnoutrefresh(list);
+
+            /* print the up/down arrows */
+            wattrset(dialog, uarrow_attr);
+            wmove(dialog, box_y, box_x + check_x + 5);
+            waddch(dialog, ACS_UARROW);
+            wmove(dialog, box_y, box_x + check_x + 6);
+            waddstr(dialog, "(-)");
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+            wattrset(dialog, scroll+choice < item_no-1 ? darrow_attr : menubox_border_attr);
+            waddch(dialog, scroll+choice < item_no-1 ? ACS_DARROW : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+            waddch(dialog, scroll+choice < item_no-1 ? '(' : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 7);
+            waddch(dialog, scroll+choice < item_no-1 ? '+' : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 8);
+            waddch(dialog, scroll+choice < item_no-1 ? ')' : ACS_HLINE);
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice + 1;
+      }
+      else if (key == ' ') {    /* Toggle item status */
+        status[scroll+choice] = !status[scroll+choice];
+        getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+        wmove(list, choice, check_x);
+        wattrset(list, check_selected_attr);
+        wprintw(list, "[%c]", status[scroll+choice] ? 'X' : ' ');
+        wnoutrefresh(list);
+        wmove(dialog, cur_y, cur_x);  /* Restore cursor to previous position */
+        wrefresh(dialog);
+        continue;    /* wait for another key press */
+      }
+
+      if (i != choice) {
+        /* De-highlight current item */
+        getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+        print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 + 1], status[scroll+choice], choice, FALSE);
+
+        /* Highlight new item */
+        choice = i;
+        print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 + 1], status[scroll+choice], choice, TRUE);
+        wnoutrefresh(list);
+        wmove(dialog, cur_y, cur_x);  /* Restore cursor to previous position */
+        wrefresh(dialog);
+      }
+      continue;    /* wait for another key press */
+    }
+
+    switch (key) {
+      case 'O':
+      case 'o':
+        delwin(dialog);
+	*result = '\0';
+        for (i = 0; i < item_no; i++)
+	  if (status[i]) {
+	    strcat(result, items[i*3]);
+	    strcat(result, "\n");
+	  }
+        free(status);
+        return 0;
+      case 'C':
+      case 'c':
+        delwin(dialog);
+        free(status);
+        return 1;
+      case TAB:
+      case KEY_BTAB:
+      case KEY_LEFT:
+      case KEY_RIGHT:
+        if (!button) {
+          button = 1;    /* Indicates "Cancel" button is selected */
+          print_button(dialog, "  OK  ", y, x, FALSE);
+          print_button(dialog, "Cancel", y, x+14, TRUE);
+        }
+        else {
+          button = 0;    /* Indicates "OK" button is selected */
+          print_button(dialog, "Cancel", y, x+14, FALSE);
+          print_button(dialog, "  OK  ", y, x, TRUE);
+        }
+        wrefresh(dialog);
+        break;
+      case ' ':
+      case '\n':
+        delwin(dialog);
+	if (!button) {
+	  *result = '\0';
+          for (i = 0; i < item_no; i++)
+	    if (status[i]) {
+	      strcat(result, items[i*3]);
+	      strcat(result, "\n");
+	    }
+	}
+        free(status);
+        return button;
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  free(status);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_checklist() */
+
+
+/*
+ * Print list item
+ */
+static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int status, int choice, int selected)
+{
+  int i;
+
+  /* Clear 'residue' of last item */
+  wattrset(win, menubox_attr);
+  wmove(win, choice, 0);
+  for (i = 0; i < list_width; i++)
+    waddch(win, ' ');
+  wmove(win, choice, check_x);
+  wattrset(win, selected ? check_selected_attr : check_attr);
+  wprintw(win, "[%c]", status ? 'X' : ' ');
+  wattrset(win, menubox_attr);
+  waddch(win, ' ');
+  wattrset(win, selected ? tag_key_selected_attr : tag_key_attr);
+  waddch(win, tag[0]);
+  wattrset(win, selected ? tag_selected_attr : tag_attr);
+  waddstr(win, tag + 1);
+  wmove(win, choice, item_x);
+  wattrset(win, selected ? item_selected_attr : item_attr);
+  waddstr(win, item);
+}
+/* End of print_item() */
diff --git a/gnu/lib/libdialog/colors.h b/gnu/lib/libdialog/colors.h
new file mode 100644
index 0000000..7cea0a0
--- /dev/null
+++ b/gnu/lib/libdialog/colors.h
@@ -0,0 +1,219 @@
+/*
+ *  colors.h -- color attribute definitions
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ *   Default color definitions
+ *
+ *   *_FG = foreground
+ *   *_BG = background
+ *   *_HL = highlight?
+ */
+#define SCREEN_FG                    COLOR_CYAN
+#define SCREEN_BG                    COLOR_BLUE
+#define SCREEN_HL                    TRUE
+
+#define SHADOW_FG                    COLOR_BLACK
+#define SHADOW_BG                    COLOR_BLACK
+#define SHADOW_HL                    TRUE
+
+#define DIALOG_FG                    COLOR_BLACK
+#define DIALOG_BG                    COLOR_WHITE
+#define DIALOG_HL                    FALSE
+
+#define TITLE_FG                     COLOR_YELLOW
+#define TITLE_BG                     COLOR_WHITE
+#define TITLE_HL                     TRUE
+
+#define BORDER_FG                    COLOR_WHITE
+#define BORDER_BG                    COLOR_WHITE
+#define BORDER_HL                    TRUE
+
+#define BUTTON_ACTIVE_FG             COLOR_WHITE
+#define BUTTON_ACTIVE_BG             COLOR_BLUE
+#define BUTTON_ACTIVE_HL             TRUE
+
+#define BUTTON_INACTIVE_FG           COLOR_BLACK
+#define BUTTON_INACTIVE_BG           COLOR_WHITE
+#define BUTTON_INACTIVE_HL           FALSE
+
+#define BUTTON_KEY_ACTIVE_FG         COLOR_WHITE
+#define BUTTON_KEY_ACTIVE_BG         COLOR_BLUE
+#define BUTTON_KEY_ACTIVE_HL         TRUE
+
+#define BUTTON_KEY_INACTIVE_FG       COLOR_RED
+#define BUTTON_KEY_INACTIVE_BG       COLOR_WHITE
+#define BUTTON_KEY_INACTIVE_HL       FALSE
+
+#define BUTTON_LABEL_ACTIVE_FG       COLOR_YELLOW
+#define BUTTON_LABEL_ACTIVE_BG       COLOR_BLUE
+#define BUTTON_LABEL_ACTIVE_HL       TRUE
+
+#define BUTTON_LABEL_INACTIVE_FG     COLOR_BLACK
+#define BUTTON_LABEL_INACTIVE_BG     COLOR_WHITE
+#define BUTTON_LABEL_INACTIVE_HL     TRUE
+
+#define INPUTBOX_FG                  COLOR_BLACK
+#define INPUTBOX_BG                  COLOR_WHITE
+#define INPUTBOX_HL                  FALSE
+
+#define INPUTBOX_BORDER_FG           COLOR_BLACK
+#define INPUTBOX_BORDER_BG           COLOR_WHITE
+#define INPUTBOX_BORDER_HL           FALSE
+
+#define SEARCHBOX_FG                 COLOR_BLACK
+#define SEARCHBOX_BG                 COLOR_WHITE
+#define SEARCHBOX_HL                 FALSE
+
+#define SEARCHBOX_TITLE_FG           COLOR_YELLOW
+#define SEARCHBOX_TITLE_BG           COLOR_WHITE
+#define SEARCHBOX_TITLE_HL           TRUE
+
+#define SEARCHBOX_BORDER_FG          COLOR_WHITE
+#define SEARCHBOX_BORDER_BG          COLOR_WHITE
+#define SEARCHBOX_BORDER_HL          TRUE
+
+#define POSITION_INDICATOR_FG        COLOR_YELLOW
+#define POSITION_INDICATOR_BG        COLOR_WHITE
+#define POSITION_INDICATOR_HL        TRUE
+
+#define MENUBOX_FG                   COLOR_BLACK
+#define MENUBOX_BG                   COLOR_WHITE
+#define MENUBOX_HL                   FALSE
+
+#define MENUBOX_BORDER_FG            COLOR_WHITE
+#define MENUBOX_BORDER_BG            COLOR_WHITE
+#define MENUBOX_BORDER_HL            TRUE
+
+#define ITEM_FG                      COLOR_BLACK
+#define ITEM_BG                      COLOR_WHITE
+#define ITEM_HL                      FALSE
+
+#define ITEM_SELECTED_FG             COLOR_WHITE
+#define ITEM_SELECTED_BG             COLOR_BLUE
+#define ITEM_SELECTED_HL             TRUE
+
+#define TAG_FG                       COLOR_YELLOW
+#define TAG_BG                       COLOR_WHITE
+#define TAG_HL                       TRUE
+
+#define TAG_SELECTED_FG              COLOR_YELLOW
+#define TAG_SELECTED_BG              COLOR_BLUE
+#define TAG_SELECTED_HL              TRUE
+
+#define TAG_KEY_FG                   COLOR_RED
+#define TAG_KEY_BG                   COLOR_WHITE
+#define TAG_KEY_HL                   TRUE
+
+#define TAG_KEY_SELECTED_FG          COLOR_RED
+#define TAG_KEY_SELECTED_BG          COLOR_BLUE
+#define TAG_KEY_SELECTED_HL          TRUE
+
+#define CHECK_FG                     COLOR_BLACK
+#define CHECK_BG                     COLOR_WHITE
+#define CHECK_HL                     FALSE
+
+#define CHECK_SELECTED_FG            COLOR_WHITE
+#define CHECK_SELECTED_BG            COLOR_BLUE
+#define CHECK_SELECTED_HL            TRUE
+
+#define UARROW_FG                    COLOR_GREEN
+#define UARROW_BG                    COLOR_WHITE
+#define UARROW_HL                    TRUE
+
+#define DARROW_FG                    COLOR_GREEN
+#define DARROW_BG                    COLOR_WHITE
+#define DARROW_HL                    TRUE
+
+/* End of default color definitions */
+
+#define C_ATTR(x,y)                  ((x ? A_BOLD : 0) | COLOR_PAIR((y)))
+#define COLOR_NAME_LEN               10
+#define COLOR_COUNT                  8
+
+
+/*
+ * Global variables
+ */
+
+typedef struct {
+  unsigned char name[COLOR_NAME_LEN];
+  int  value;
+} color_names_st;
+
+
+#ifdef __DIALOG_MAIN__
+
+/*
+ * For matching color names with color values
+ */
+color_names_st color_names[] = {
+  {"BLACK",   COLOR_BLACK},
+  {"RED",     COLOR_RED},
+  {"GREEN",   COLOR_GREEN},
+  {"YELLOW",  COLOR_YELLOW},
+  {"BLUE",    COLOR_BLUE},
+  {"MAGENTA", COLOR_MAGENTA},
+  {"CYAN",    COLOR_CYAN},
+  {"WHITE",   COLOR_WHITE},
+};    /* color names */
+
+
+/*
+ * Table of color values
+ */
+int color_table[][3] = {
+  {SCREEN_FG,               SCREEN_BG,               SCREEN_HL               },
+  {SHADOW_FG,               SHADOW_BG,               SHADOW_HL               },
+  {DIALOG_FG,               DIALOG_BG,               DIALOG_HL               },
+  {TITLE_FG,                TITLE_BG,                TITLE_HL                },
+  {BORDER_FG,               BORDER_BG,               BORDER_HL               },
+  {BUTTON_ACTIVE_FG,        BUTTON_ACTIVE_BG,        BUTTON_ACTIVE_HL        },
+  {BUTTON_INACTIVE_FG,      BUTTON_INACTIVE_BG,      BUTTON_INACTIVE_HL      },
+  {BUTTON_KEY_ACTIVE_FG,    BUTTON_KEY_ACTIVE_BG,    BUTTON_KEY_ACTIVE_HL    },
+  {BUTTON_KEY_INACTIVE_FG,  BUTTON_KEY_INACTIVE_BG,  BUTTON_KEY_INACTIVE_HL  },
+  {BUTTON_LABEL_ACTIVE_FG,  BUTTON_LABEL_ACTIVE_BG,  BUTTON_LABEL_ACTIVE_HL  },
+  {BUTTON_LABEL_INACTIVE_FG,BUTTON_LABEL_INACTIVE_BG,BUTTON_LABEL_INACTIVE_HL},
+  {INPUTBOX_FG,             INPUTBOX_BG,             INPUTBOX_HL             },
+  {INPUTBOX_BORDER_FG,      INPUTBOX_BORDER_BG,      INPUTBOX_BORDER_HL      },
+  {SEARCHBOX_FG,            SEARCHBOX_BG,            SEARCHBOX_HL            },
+  {SEARCHBOX_TITLE_FG,      SEARCHBOX_TITLE_BG,      SEARCHBOX_TITLE_HL      },
+  {SEARCHBOX_BORDER_FG,     SEARCHBOX_BORDER_BG,     SEARCHBOX_BORDER_HL     },
+  {POSITION_INDICATOR_FG,   POSITION_INDICATOR_BG,   POSITION_INDICATOR_HL   },
+  {MENUBOX_FG,              MENUBOX_BG,              MENUBOX_HL              },
+  {MENUBOX_BORDER_FG,       MENUBOX_BORDER_BG,       MENUBOX_BORDER_HL       },
+  {ITEM_FG,                 ITEM_BG,                 ITEM_HL                 },
+  {ITEM_SELECTED_FG,        ITEM_SELECTED_BG,        ITEM_SELECTED_HL        },
+  {TAG_FG,                  TAG_BG,                  TAG_HL                  },
+  {TAG_SELECTED_FG,         TAG_SELECTED_BG,         TAG_SELECTED_HL         },
+  {TAG_KEY_FG,              TAG_KEY_BG,              TAG_KEY_HL              },
+  {TAG_KEY_SELECTED_FG,     TAG_KEY_SELECTED_BG,     TAG_KEY_SELECTED_HL     },
+  {CHECK_FG,                CHECK_BG,                CHECK_HL                },
+  {CHECK_SELECTED_FG,       CHECK_SELECTED_BG,       CHECK_SELECTED_HL       },
+  {UARROW_FG,               UARROW_BG,               UARROW_HL               },
+  {DARROW_FG,               DARROW_BG,               DARROW_HL               },
+};    /* color_table */
+
+#else
+
+extern color_names_st color_names[];
+extern int color_table[][3];
+
+#endif    /* __DIALOG_MAIN__ */
diff --git a/gnu/lib/libdialog/dialog.h b/gnu/lib/libdialog/dialog.h
new file mode 100644
index 0000000..ffc03ac
--- /dev/null
+++ b/gnu/lib/libdialog/dialog.h
@@ -0,0 +1,35 @@
+/*
+ *  dialog.h -- common declarations for all dialog modules
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define VERSION "0.4"
+#define MAX_LEN 2048
+
+void dialog_create_rc(unsigned char *filename);
+int dialog_yesno(unsigned char *title, unsigned char *prompt, int height, int width);
+int dialog_msgbox(unsigned char *title, unsigned char *prompt, int height, int width, int pause);
+int dialog_textbox(unsigned char *title, unsigned char *file, int height, int width);
+int dialog_menu(unsigned char *title, unsigned char *prompt, int height, int width, int menu_height, int item_no, unsigned char **items, unsigned char *result);
+int dialog_checklist(unsigned char *title, unsigned char *prompt, int height, int width, int list_height, int item_no, unsigned char **items, unsigned char *result);
+int dialog_radiolist(char *title, char *prompt, int height, int width, int list_height, int item_no, unsigned char **items, unsigned char *result);
+int dialog_inputbox(unsigned char *title, unsigned char *prompt, int height, int width, unsigned char *result);
+void dialog_clear(void);
+void dialog_update(void);
+void init_dialog(void);
+void end_dialog(void);
diff --git a/gnu/lib/libdialog/dialog.priv.h b/gnu/lib/libdialog/dialog.priv.h
new file mode 100644
index 0000000..90a2432
--- /dev/null
+++ b/gnu/lib/libdialog/dialog.priv.h
@@ -0,0 +1,218 @@
+/*
+ *  dialog.h -- common declarations for all dialog modules
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_NCURSES
+#include <ncurses.h>
+
+#else
+
+#ifdef ultrix
+#include <cursesX.h>
+#else
+#include <curses.h>
+#endif
+
+#endif
+
+#if defined(LOCALE)
+#include <locale.h>
+#endif
+
+/*
+ * Change these if you want
+ */
+#define USE_SHADOW TRUE
+#define USE_COLORS TRUE
+
+#define ESC 27
+#define TAB 9
+#define BUF_SIZE (10*1024)
+#define MIN(x,y) (x < y ? x : y)
+#define MAX(x,y) (x > y ? x : y)
+
+#ifndef HAVE_NCURSES
+#ifndef ACS_ULCORNER
+#define ACS_ULCORNER '+'
+#endif
+#ifndef ACS_LLCORNER
+#define ACS_LLCORNER '+'
+#endif
+#ifndef ACS_URCORNER
+#define ACS_URCORNER '+'
+#endif
+#ifndef ACS_LRCORNER
+#define ACS_LRCORNER '+'
+#endif
+#ifndef ACS_HLINE
+#define ACS_HLINE '-'
+#endif
+#ifndef ACS_VLINE
+#define ACS_VLINE '|'
+#endif
+#ifndef ACS_LTEE
+#define ACS_LTEE '+'
+#endif
+#ifndef ACS_RTEE
+#define ACS_RTEE '+'
+#endif
+#ifndef ACS_UARROW
+#define ACS_UARROW '^'
+#endif
+#ifndef ACS_DARROW
+#define ACS_DARROW 'v'
+#endif
+#endif    /* HAVE_NCURSES */
+
+
+/* 
+ * Attribute names
+ */
+#define screen_attr                   attributes[0]
+#define shadow_attr                   attributes[1]
+#define dialog_attr                   attributes[2]
+#define title_attr                    attributes[3]
+#define border_attr                   attributes[4]
+#define button_active_attr            attributes[5]
+#define button_inactive_attr          attributes[6]
+#define button_key_active_attr        attributes[7]
+#define button_key_inactive_attr      attributes[8]
+#define button_label_active_attr      attributes[9]
+#define button_label_inactive_attr    attributes[10]
+#define inputbox_attr                 attributes[11]
+#define inputbox_border_attr          attributes[12]
+#define searchbox_attr                attributes[13]
+#define searchbox_title_attr          attributes[14]
+#define searchbox_border_attr         attributes[15]
+#define position_indicator_attr       attributes[16]
+#define menubox_attr                  attributes[17]
+#define menubox_border_attr           attributes[18]
+#define item_attr                     attributes[19]
+#define item_selected_attr            attributes[20]
+#define tag_attr                      attributes[21]
+#define tag_selected_attr             attributes[22]
+#define tag_key_attr                  attributes[23]
+#define tag_key_selected_attr         attributes[24]
+#define check_attr                    attributes[25]
+#define check_selected_attr           attributes[26]
+#define uarrow_attr                   attributes[27]
+#define darrow_attr                   attributes[28]
+
+/* number of attributes */
+#define ATTRIBUTE_COUNT               29
+
+
+/*
+ * Global variables
+ */
+#ifdef __DIALOG_MAIN__
+
+#ifdef HAVE_NCURSES
+
+/* use colors by default? */
+bool use_colors = USE_COLORS;
+
+/* shadow dialog boxes by default?
+   Note that 'use_shadow' implies 'use_colors' */
+bool use_shadow = USE_SHADOW;
+
+#endif
+
+
+/* 
+ * Attribute values, default is for mono display
+ */
+chtype attributes[] = {
+  A_NORMAL,       /* screen_attr */
+  A_NORMAL,       /* shadow_attr */
+  A_REVERSE,      /* dialog_attr */
+  A_REVERSE,      /* title_attr */
+  A_REVERSE,      /* border_attr */
+  A_BOLD,         /* button_active_attr */
+  A_DIM,          /* button_inactive_attr */
+  A_UNDERLINE,    /* button_key_active_attr */
+  A_UNDERLINE,    /* button_key_inactive_attr */
+  A_NORMAL,       /* button_label_active_attr */
+  A_NORMAL,       /* button_label_inactive_attr */
+  A_REVERSE,      /* inputbox_attr */
+  A_REVERSE,      /* inputbox_border_attr */
+  A_REVERSE,      /* searchbox_attr */
+  A_REVERSE,      /* searchbox_title_attr */
+  A_REVERSE,      /* searchbox_border_attr */
+  A_REVERSE,      /* position_indicator_attr */
+  A_REVERSE,      /* menubox_attr */
+  A_REVERSE,      /* menubox_border_attr */
+  A_REVERSE,      /* item_attr */
+  A_NORMAL,       /* item_selected_attr */
+  A_REVERSE,      /* tag_attr */
+  A_REVERSE,      /* tag_selected_attr */
+  A_NORMAL,       /* tag_key_attr */
+  A_BOLD,         /* tag_key_selected_attr */
+  A_REVERSE,      /* check_attr */
+  A_REVERSE,      /* check_selected_attr */
+  A_REVERSE,      /* uarrow_attr */
+  A_REVERSE       /* darrow_attr */
+};
+
+#else
+
+#ifdef HAVE_NCURSES
+extern bool use_colors;
+extern bool use_shadow;
+#endif
+
+extern chtype attributes[];
+
+#endif    /* __DIALOG_MAIN__ */
+
+
+
+#ifdef HAVE_NCURSES
+
+/*
+ * Function prototypes
+ */
+#ifdef __DIALOG_MAIN__
+
+extern int parse_rc(void);
+
+#endif    /* __DIALOG_MAIN__ */
+
+#endif
+
+
+#ifdef HAVE_NCURSES
+void color_setup(void);
+#endif
+void attr_clear(WINDOW *win, int height, int width, chtype attr);
+void print_autowrap(WINDOW *win, unsigned char *prompt, int width, int y, int x);
+void print_button(WINDOW *win, unsigned char *label, int y, int x, int selected);
+void draw_box(WINDOW *win, int y, int x, int height, int width, chtype box, chtype border);
+#ifdef HAVE_NCURSES
+void draw_shadow(WINDOW *win, int y, int x, int height, int width);
+#endif
+
diff --git a/gnu/lib/libdialog/inputbox.c b/gnu/lib/libdialog/inputbox.c
new file mode 100644
index 0000000..a30e39a
--- /dev/null
+++ b/gnu/lib/libdialog/inputbox.c
@@ -0,0 +1,281 @@
+/*
+ *  inputbox.c -- implements the input box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+/*
+ * Display a dialog box for inputing a string
+ */
+int dialog_inputbox(unsigned char *title, unsigned char *prompt, int height, int width, unsigned char *result)
+{
+  int i, x, y, box_y, box_x, box_width,
+      input_x = 0, scroll = 0, key = 0, button = -1;
+  unsigned char instr[MAX_LEN+1];
+  WINDOW *dialog;
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+
+  memset(instr, 0, sizeof(instr));
+
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width, 1, 3);
+
+  /* Draw the input field box */
+  box_width = width-6;
+  getyx(dialog, y, x);
+  box_y = y + 2;
+  box_x = (width - box_width)/2;
+  draw_box(dialog, y+1, box_x-1, 3, box_width+2, border_attr, dialog_attr);
+
+  x = width/2-11;
+  y = height-2;
+  print_button(dialog, "Cancel", y, x+14, FALSE);
+  print_button(dialog, "  OK  ", y, x, TRUE);
+
+  wmove(dialog, box_y, box_x);
+  wrefresh(dialog);
+  while (key != ESC) {
+    key = wgetch(dialog);
+
+    if (button == -1) {    /* Input box selected */
+      switch (key) {
+        case TAB:
+	case KEY_BTAB:
+        case KEY_UP:
+        case KEY_DOWN:
+          break;
+	case KEY_HOME:
+	  input_x = scroll = 0;
+	  wmove(dialog, box_y, box_x);
+	  for (i = 0; i < box_width; i++)
+	    waddch(dialog, instr[i] ? instr[i] : ' ');
+	  wmove(dialog, box_y, box_x);
+	  wrefresh(dialog);
+	  continue;
+	case KEY_END:
+	  for (i = strlen(instr) - 1; i >= scroll + input_x && instr[i] == ' '; i--)
+	    instr[i] = '\0';
+	  i++;
+	  input_x = i % box_width;
+	  scroll = i - input_x;
+	  wmove(dialog, box_y, box_x);
+	  for (i = 0; i < box_width; i++)
+	    waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
+	  wmove(dialog, box_y, input_x + box_x);
+	  wrefresh(dialog);
+	  continue;
+        case KEY_LEFT:
+          if (input_x || scroll) {
+            wattrset(dialog, inputbox_attr);
+            if (!input_x) {
+	      int oldscroll = scroll;
+              scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1);
+              wmove(dialog, box_y, box_x);
+              for (i = 0; i < box_width; i++)
+                waddch(dialog, instr[scroll+input_x+i] ? instr[scroll+input_x+i] : ' ');
+	      input_x = oldscroll - 1 - scroll;
+            }
+            else
+              input_x--;
+            wmove(dialog, box_y, input_x + box_x);
+            wrefresh(dialog);
+          }
+          continue;
+        case KEY_RIGHT:
+            if (scroll+input_x < MAX_LEN) {
+	      wattrset(dialog, inputbox_attr);
+	      if (!instr[scroll+input_x])
+		instr[scroll+input_x] = ' ';
+	      if (input_x == box_width-1) {
+		scroll++;
+		wmove(dialog, box_y, box_x);
+		for (i = 0; i < box_width; i++)
+		  waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
+		wmove(dialog, box_y, box_x + box_width - 1);
+	      }
+	      else {
+		wmove(dialog, box_y, input_x + box_x);
+		waddch(dialog, instr[scroll+input_x]);
+		input_x++;
+	      }
+              wrefresh(dialog);
+            } else
+	      flash(); /* Alarm user about overflow */
+          continue;
+        case KEY_BACKSPACE:
+	case KEY_DC:
+          if (input_x || scroll) {
+	    i = strlen(instr);
+	    memmove(instr+scroll+input_x-1, instr+scroll+input_x, i-scroll+input_x+1);
+            wattrset(dialog, inputbox_attr);
+            if (!input_x) {
+	      int oldscroll = scroll;
+              scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1);
+              wmove(dialog, box_y, box_x);
+              for (i = 0; i < box_width; i++)
+                waddch(dialog, instr[scroll+input_x+i] ? instr[scroll+input_x+i] : ' ');
+	      input_x = oldscroll - 1 - scroll;
+            }
+            else
+              input_x--;
+	    wmove(dialog, box_y, input_x + box_x);
+	    for (i = input_x; i < box_width; i++)
+	      waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
+	    wmove(dialog, box_y, input_x + box_x);
+            wrefresh(dialog);
+          }
+          continue;
+        default:
+          if (key < 0x100 && isprint(key)) {
+	    for (i = strlen(instr) - 1; i >= scroll + input_x && instr[i] == ' '; i--)
+	      instr[i] = '\0';
+	    i++;
+	    if (i < MAX_LEN) {
+	      memmove(instr+scroll+input_x+1, instr+scroll+input_x, i-scroll+input_x);
+              wattrset(dialog, inputbox_attr);
+              instr[scroll+input_x] = key;
+              if (input_x == box_width-1) {
+                scroll++;
+                wmove(dialog, box_y, box_x);
+                for (i = 0; i < box_width-1; i++)
+                  waddch(dialog, instr[scroll+i]);
+              }
+              else {
+		wmove(dialog, box_y, input_x + box_x);
+		for (i = input_x; i < box_width; i++)
+		  waddch(dialog, instr[scroll+i] ? instr[scroll+i] : ' ');
+		wmove(dialog, box_y, ++input_x + box_x);
+              }
+              wrefresh(dialog);
+            } else
+	      flash(); /* Alarm user about overflow */
+            continue;
+          }
+      }
+    }
+
+    switch (key) {
+      case 'O':
+      case 'o':
+        delwin(dialog);
+	strcpy(result, instr);
+        return 0;
+      case 'C':
+      case 'c':
+        delwin(dialog);
+        return 1;
+      case KEY_UP:
+      case KEY_LEFT:
+      case KEY_BTAB:
+        switch (button) {
+	  case -1:
+            button = 1;    /* Indicates "Cancel" button is selected */
+	    print_button(dialog, "  OK  ", y, x, FALSE);
+	    print_button(dialog, "Cancel", y, x+14, TRUE);
+            wrefresh(dialog);
+	    break;
+          case 0:
+            button = -1;   /* Indicates input box is selected */
+	    print_button(dialog, "Cancel", y, x+14, FALSE);
+	    print_button(dialog, "  OK  ", y, x, TRUE);
+            wmove(dialog, box_y, box_x + input_x);
+            wrefresh(dialog);
+            break;
+          case 1:
+	    button = 0;    /* Indicates "OK" button is selected */
+	    print_button(dialog, "Cancel", y, x+14, FALSE);
+	    print_button(dialog, "  OK  ", y, x, TRUE);
+            wrefresh(dialog);
+            break;
+        }
+        break;
+      case TAB:
+      case KEY_DOWN:
+      case KEY_RIGHT:
+        switch (button) {
+	  case -1:
+	    button = 0;    /* Indicates "OK" button is selected */
+	    print_button(dialog, "Cancel", y, x+14, FALSE);
+	    print_button(dialog, "  OK  ", y, x, TRUE);
+            wrefresh(dialog);
+            break;
+          case 0:
+            button = 1;    /* Indicates "Cancel" button is selected */
+	    print_button(dialog, "  OK  ", y, x, FALSE);
+	    print_button(dialog, "Cancel", y, x+14, TRUE);
+            wrefresh(dialog);
+	    break;
+          case 1:
+            button = -1;   /* Indicates input box is selected */
+	    print_button(dialog, "Cancel", y, x+14, FALSE);
+	    print_button(dialog, "  OK  ", y, x, TRUE);
+            wmove(dialog, box_y, box_x + input_x);
+            wrefresh(dialog);
+            break;
+        }
+        break;
+      case ' ':
+      case '\n':
+        delwin(dialog);
+	for (i = strlen(instr) - 1; i >= scroll + input_x && instr[i] == ' '; i--)
+	  instr[i] = '\0';
+	if (button < 1)
+	  strcpy(result, instr);
+        return (button == -1 ? 0 : button);
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_inputbox() */
diff --git a/gnu/lib/libdialog/kernel.c b/gnu/lib/libdialog/kernel.c
new file mode 100644
index 0000000..4a45dd3
--- /dev/null
+++ b/gnu/lib/libdialog/kernel.c
@@ -0,0 +1,330 @@
+/*
+ *  dialog - Display simple dialog boxes from shell scripts
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ *  HISTORY:
+ *
+ *  17/12/93 - Version 0.1 released.
+ *
+ *  19/12/93 - menu will now scroll if there are more items than can fit
+ *             on the screen.
+ *           - added 'checklist', a dialog box with a list of options that
+ *             can be turned on or off. A list of options that are on is 
+ *             returned on exit.
+ *
+ *  20/12/93 - Version 0.15 released.
+ *
+ *  29/12/93 - Incorporated patch from Patrick J. Volkerding
+ *             (volkerdi@mhd1.moorhead.msus.edu) that made these changes:
+ *             - increased MAX_LEN to 2048
+ *             - added 'infobox', equivalent to a message box without pausing
+ *             - added option '--clear' that will clear the screen
+ *             - Explicit line breaking when printing prompt text can be
+ *               invoked by real newline '\n' besides the string "\n"
+ *           - an optional parameter '--title <string>' can be used to
+ *             specify a title string for the dialog box
+ *
+ *  03/01/94 - added 'textbox', a dialog box for displaying text from a file.
+ *           - Version 0.2 released.
+ *
+ *  04/01/94 - some fixes and improvements for 'textbox':
+ *             - fixed a bug that will cause a segmentation violation when a
+ *               line is longer than MAX_LEN characters. Lines will now be
+ *               truncated if they are longer than MAX_LEN characters.
+ *             - removed wrefresh() from print_line(). This will increase
+ *               efficiency of print_page() which calls print_line().
+ *             - display current position in the form of percentage into file.
+ *           - Version 0.21 released.
+ *
+ *  05/01/94 - some changes for faster screen update.
+ *
+ *  07/01/94 - much more flexible color settings. Can use all 16 colors
+ *             (8 normal, 8 highlight) of the Linux console.
+ *
+ *  08/01/94 - added run-time configuration using configuration file.
+ *
+ *  09/01/94 - some minor bug fixes and cleanups for menubox, checklist and
+ *             textbox.
+ *
+ *  11/01/94 - added a man page.
+ *
+ *  13/01/94 - some changes for easier porting to other Unix systems (tested
+ *             on Ultrix, SunOS and HPUX)
+ *           - Version 0.3 released.
+ * 
+ *  08/06/94 - Patches by Stuart Herbert - S.Herbert@shef.ac.uk
+ * 	       Fixed attr_clear and the textbox stuff to work with ncurses 1.8.5
+ * 	       Fixed the wordwrap routine - it'll actually wrap properly now
+ *	       Added a more 3D look to everything - having your own rc file could
+ *	         prove 'interesting' to say the least :-)
+ *             Added radiolist option
+ *	     - Version 0.4 released.
+ */
+
+#define __DIALOG_MAIN__
+
+#include "dialog.priv.h"
+#include <dialog.h>
+#ifdef HAVE_NCURSES
+#include "colors.h"
+#endif
+
+/*
+ * Do some initialization for dialog
+ */
+void init_dialog(void)
+{
+#if defined(LOCALE)
+  (void) setlocale(LC_ALL, "");
+#endif
+
+#ifdef HAVE_NCURSES
+  if (parse_rc() == -1)    /* Read the configuration file */
+    exit(-1);
+#endif
+
+  initscr();     /* Init curses */
+  keypad(stdscr, TRUE);
+  cbreak();
+  noecho();
+
+#ifdef HAVE_NCURSES
+  if (use_colors || use_shadow)    /* Set up colors */
+    color_setup();
+#endif
+
+  /* Set screen to screen attribute */
+  attr_clear(stdscr, LINES, COLS, screen_attr);
+  wnoutrefresh(stdscr);
+}
+/* End of init_dialog() */
+
+
+#ifdef HAVE_NCURSES
+/*
+ * Setup for color display
+ */
+void color_setup(void)
+{
+  int i;
+
+  if (has_colors()) {    /* Terminal supports color? */
+    start_color();
+
+    /* Initialize color pairs */
+    for (i = 0; i < ATTRIBUTE_COUNT; i++)
+      init_pair(i+1, color_table[i][0], color_table[i][1]);
+
+    /* Setup color attributes */
+    for (i = 0; i < ATTRIBUTE_COUNT; i++)
+      attributes[i] = C_ATTR(color_table[i][2], i+1);
+  }
+}
+/* End of color_setup() */
+#endif
+
+
+/*
+ * Set window to attribute 'attr'
+ */
+void attr_clear(WINDOW *win, int height, int width, chtype attr)
+{
+  int i, j;
+
+  wattrset(win, attr);    /* Set window to attribute 'attr' */
+  for (i = 0; i < height; i++) {
+    wmove(win, i, 0);
+    for (j = 0; j < width; j++)
+      waddch(win, ' ');
+  }
+}
+/* End of attr_clear() */
+
+
+/*
+ * Print a string of text in a window, automatically wrap around to the
+ * next line if the string is too long to fit on one line. Note that the
+ * string may contain "\n" to represent a newline character or the real
+ * newline '\n', but in that case, auto wrap around will be disabled.
+ */
+void print_autowrap(WINDOW *win, unsigned char *prompt, int width, int y, int x)
+{
+  int first = 1, cur_x, cur_y;
+  unsigned char tempstr[MAX_LEN+1], *word, *tempptr, *tempptr1;
+
+  strcpy(tempstr, prompt);
+  if ((strstr(tempstr, "\\n") != NULL) ||
+      (strchr(tempstr, '\n') != NULL)) {    /* Prompt contains "\n" or '\n' */
+    word = tempstr;
+    cur_y = y;
+    wmove(win, cur_y, x);
+    while (1) {
+      tempptr = strstr(word, "\\n");
+      tempptr1 = strchr(word, '\n');
+      if (tempptr == NULL && tempptr1 == NULL)
+        break;
+      else if (tempptr == NULL) {    /* No more "\n" */
+        tempptr = tempptr1;
+        tempptr[0] = '\0';
+      }
+      else if (tempptr1 == NULL) {    /* No more '\n' */
+        tempptr[0] = '\0';
+        tempptr++;
+      }
+      else {    /* Prompt contains both "\n" and '\n' */
+        if (strlen(tempptr)-2 < strlen(tempptr1)-1) {
+          tempptr = tempptr1;
+          tempptr[0] = '\0';
+        }
+        else {
+          tempptr[0] = '\0';
+          tempptr++;
+        }
+      }
+
+      waddstr(win, word);
+      word = tempptr + 1;
+      wmove(win, ++cur_y, x);
+    }
+    waddstr(win, word);
+  }
+  else if (strlen(tempstr) <= width-x*2) {    /* If prompt is short */
+    wmove(win, y, (width - strlen(tempstr)) / 2);
+    waddstr(win, tempstr);
+  }
+  else {
+    cur_x = x;
+    cur_y = y;
+    /* Print prompt word by word, wrap around if necessary */
+    while ((word = strtok(first ? tempstr : NULL, " ")) != NULL) {
+      if (first)    /* First iteration */
+        first = 0;
+      if (cur_x+strlen(word) >= width) {    /* wrap around to next line */
+        cur_y++;
+        cur_x = x;
+      }
+      wmove(win, cur_y, cur_x);
+      waddstr(win, word);
+      getyx(win, cur_y, cur_x);
+      cur_x++;
+    }
+  }
+}
+/* End of print_autowrap() */
+
+
+/*
+ * Print a button
+ */
+void print_button(WINDOW *win, unsigned char *label, int y, int x, int selected)
+{
+  int i, temp;
+
+  wmove(win, y, x);
+  wattrset(win, selected ? button_active_attr : button_inactive_attr);
+  waddstr(win, "<");
+  temp = strspn(label, " ");
+  label += temp;
+  wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
+  for (i = 0; i < temp; i++)
+    waddch(win, ' ');
+  wattrset(win, selected ? button_key_active_attr : button_key_inactive_attr);
+  waddch(win, label[0]);
+  wattrset(win, selected ? button_label_active_attr : button_label_inactive_attr);
+  waddstr(win, label+1);
+  wattrset(win, selected ? button_active_attr : button_inactive_attr);
+  waddstr(win, ">");
+  wmove(win, y, x+temp+1);
+}
+/* End of print_button() */
+
+
+/*
+ * Draw a rectangular box with line drawing characters
+ */
+void draw_box(WINDOW *win, int y, int x, int height, int width, chtype box, chtype border)
+{
+  int i, j;
+
+  wattrset(win, 0);
+  for (i = 0; i < height; i++) {
+    wmove(win, y + i, x);
+    for (j = 0; j < width; j++)
+      if (!i && !j)
+        waddch(win, border | ACS_ULCORNER);
+      else if (i == height-1 && !j)
+        waddch(win, border | ACS_LLCORNER);
+      else if (!i && j == width-1)
+        waddch(win, box | ACS_URCORNER);
+      else if (i == height-1 && j == width-1)
+        waddch(win, box | ACS_LRCORNER);
+      else if (!i)
+        waddch(win, border | ACS_HLINE);
+      else if (i == height-1)
+        waddch(win, box | ACS_HLINE);
+      else if (!j)
+        waddch(win, border | ACS_VLINE);
+      else if (j == width-1)
+        waddch(win, box | ACS_VLINE);
+      else
+        waddch(win, box | ' ');
+  }
+}
+/* End of draw_box() */
+
+
+#ifdef HAVE_NCURSES
+/*
+ * Draw shadows along the right and bottom edge to give a more 3D look
+ * to the boxes
+ */
+void draw_shadow(WINDOW *win, int y, int x, int height, int width)
+{
+  int i;
+
+  if (has_colors()) {    /* Whether terminal supports color? */
+    wattrset(win, shadow_attr);
+    wmove(win, y + height, x + 2);
+    for (i = 0; i < width; i++)
+      waddch(win, winch(win) & A_CHARTEXT);
+    for (i = y + 1; i < y + height + 1; i++) {
+      wmove(win, i, x + width);
+      waddch(win, winch(win) & A_CHARTEXT);
+      waddch(win, winch(win) & A_CHARTEXT);
+    }
+    wnoutrefresh(win);
+  }
+}
+/* End of draw_shadow() */
+#endif
+
+void dialog_clear(void)
+{
+    attr_clear(stdscr, LINES, COLS, screen_attr);
+}
+
+void dialog_update(void)
+{
+    refresh();
+}
+
+void end_dialog(void)
+{
+    endwin();
+}
diff --git a/gnu/lib/libdialog/menubox.c b/gnu/lib/libdialog/menubox.c
new file mode 100644
index 0000000..da818aa
--- /dev/null
+++ b/gnu/lib/libdialog/menubox.c
@@ -0,0 +1,311 @@
+/*
+ *  menubox.c -- implements the menu box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected);
+
+
+static int menu_width, tag_x, item_x;
+
+
+/*
+ * Display a menu for choosing among a number of options
+ */
+int dialog_menu(unsigned char *title, unsigned char *prompt, int height, int width, int menu_height, int item_no, unsigned char **items, unsigned char *result)
+{
+  int i, x, y, cur_x, cur_y, box_x, box_y, key = 0, button = 0, choice = 0,
+      scroll = 0, max_choice;
+  WINDOW *dialog, *menu;
+
+  max_choice = MIN(menu_height, item_no);
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+  
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width, 1, 3);
+
+  menu_width = width-6;
+  getyx(dialog, cur_y, cur_x);
+  box_y = cur_y + 1;
+  box_x = (width - menu_width)/2 - 1;
+
+  /* create new window for the menu */
+  menu = subwin(dialog, menu_height, menu_width, y + box_y + 1, x + box_x + 1);
+  keypad(menu, TRUE);
+
+  /* draw a box around the menu items */
+  draw_box(dialog, box_y, box_x, menu_height+2, menu_width+2, menubox_border_attr, menubox_attr);
+
+  tag_x = 0;
+  item_x = 0;
+  /* Find length of longest item in order to center menu */
+  for (i = 0; i < item_no; i++) {
+    tag_x = MAX(tag_x, strlen(items[i*2]) + strlen(items[i*2 + 1]) + 2);
+    item_x = MAX(item_x, strlen(items[i*2]));
+  }
+  tag_x = (menu_width - tag_x) / 2;
+  item_x = tag_x + item_x + 2;
+
+  /* Print the menu */
+  for (i = 0; i < max_choice; i++)
+    print_item(menu, items[i*2], items[i*2 + 1], i, i == choice);
+  wnoutrefresh(menu);
+
+  if (menu_height < item_no) {
+    wattrset(dialog, darrow_attr);
+    wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1);
+    waddch(dialog, ACS_DARROW);
+    wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2);
+    waddstr(dialog,"(+)");
+  }
+
+  x = width/2-11;
+  y = height-2;
+  print_button(dialog, "Cancel", y, x+14, FALSE);
+  print_button(dialog, "  OK  ", y, x, TRUE);
+  wrefresh(dialog);
+
+  while (key != ESC) {
+    key = wgetch(dialog);
+    /* Check if key pressed matches first character of any item tag in menu */
+    for (i = 0; i < max_choice; i++)
+      if (key < 0x100 && toupper(key) == toupper(items[(scroll+i)*2][0]))
+        break;
+
+    if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || 
+        key == KEY_UP || key == KEY_DOWN || key == '-' || key == '+') {
+      if (key >= '1' && key <= MIN('9', '0'+max_choice))
+        i = key - '1';
+      else if (key == KEY_UP || key == '-') {
+        if (!choice) {
+          if (scroll) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll--;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint menu to scroll down */
+            for (i = 0; i < max_choice; i++)
+              print_item(menu, items[(scroll+i)*2], items[(scroll+i)*2 + 1], i, i == choice);
+
+#else
+
+            /* Scroll menu down */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (menu_height > 1) {
+              /* De-highlight current first item before scrolling down */
+              print_item(menu, items[scroll*2], items[scroll*2 + 1], 0, FALSE);
+              scrollok(menu, TRUE);
+              wscrl(menu, -1);
+              scrollok(menu, FALSE);
+            }
+            scroll--;
+            print_item(menu, items[scroll*2], items[scroll*2 + 1], 0, TRUE);
+#endif
+            wnoutrefresh(menu);
+
+            /* print the up/down arrows */
+            wmove(dialog, box_y, box_x + tag_x + 1);
+            wattrset(dialog, scroll ? uarrow_attr : menubox_attr);
+            waddch(dialog, scroll ? ACS_UARROW : ACS_HLINE);
+            wmove(dialog, box_y, box_x + tag_x + 2);
+            waddch(dialog, scroll ? '(' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + tag_x + 3);
+            waddch(dialog, scroll ? '-' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + tag_x + 4);
+            waddch(dialog, scroll ? ')' : ACS_HLINE);
+            wattrset(dialog, darrow_attr);
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1);
+            waddch(dialog, ACS_DARROW);
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2);
+            waddstr(dialog,"(+)");
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice - 1;
+      }
+      else if (key == KEY_DOWN || key == '+')
+        if (choice == max_choice - 1) {
+          if (scroll+choice < item_no-1) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll++;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint menu to scroll up */
+            for (i = 0; i < max_choice; i++)
+              print_item(menu, items[(scroll+i)*2], items[(scroll+i)*2 + 1], i, i == choice);
+
+#else
+
+            /* Scroll menu up */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (menu_height > 1) {
+              /* De-highlight current last item before scrolling up */
+              print_item(menu, items[(scroll+max_choice-1)*2], items[(scroll+max_choice-1)*2 + 1], max_choice-1, FALSE);
+              scrollok(menu, TRUE);
+              scroll(menu);
+              scrollok(menu, FALSE);
+            }
+            scroll++;
+              print_item(menu, items[(scroll+max_choice-1)*2], items[(scroll+max_choice-1)*2 + 1], max_choice-1, TRUE);
+#endif
+            wnoutrefresh(menu);
+
+            /* print the up/down arrows */
+            wattrset(dialog, uarrow_attr);
+            wmove(dialog, box_y, box_x + tag_x + 1);
+            waddch(dialog, ACS_UARROW);
+            wmove(dialog, box_y, box_x + tag_x + 2);
+            waddstr(dialog,"(-)");
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 1);
+            wattrset(dialog, scroll+choice < item_no-1 ? darrow_attr : menubox_border_attr);
+            waddch(dialog, scroll+choice < item_no-1 ? ACS_DARROW : ACS_HLINE);
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 2);
+            waddch(dialog, scroll+choice < item_no-1 ? '(' : ACS_HLINE);
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 3);
+            waddch(dialog, scroll+choice < item_no-1 ? '+' : ACS_HLINE);
+            wmove(dialog, box_y + menu_height + 1, box_x + tag_x + 4);
+            waddch(dialog, scroll+choice < item_no-1 ? ')' : ACS_HLINE);
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice + 1;
+
+      if (i != choice) {
+        /* De-highlight current item */
+        getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+        print_item(menu, items[(scroll+choice)*2], items[(scroll+choice)*2 + 1], choice, FALSE);
+
+        /* Highlight new item */
+        choice = i;
+        print_item(menu, items[(scroll+choice)*2], items[(scroll+choice)*2 + 1], choice, TRUE);
+        wnoutrefresh(menu);
+        wmove(dialog, cur_y, cur_x);  /* Restore cursor to previous position */
+        wrefresh(dialog);
+      }
+      continue;    /* wait for another key press */
+    }
+
+    switch (key) {
+      case 'O':
+      case 'o':
+        delwin(dialog);
+	strcpy(result, items[(scroll+choice)*2]);
+        return 0;
+      case 'C':
+      case 'c':
+        delwin(dialog);
+        return 1;
+      case KEY_BTAB:
+      case TAB:
+      case KEY_LEFT:
+      case KEY_RIGHT:
+        if (!button) {
+          button = 1;    /* Indicates "Cancel" button is selected */
+          print_button(dialog, "  OK  ", y, x, FALSE);
+          print_button(dialog, "Cancel", y, x+14, TRUE);
+        }
+        else {
+          button = 0;    /* Indicates "OK" button is selected */
+          print_button(dialog, "Cancel", y, x+14, FALSE);
+          print_button(dialog, "  OK  ", y, x, TRUE);
+        }
+        wrefresh(dialog);
+        break;
+      case ' ':
+      case '\n':
+        delwin(dialog);
+        if (!button)
+	  strcpy(result, items[(scroll+choice)*2]);
+        return button;
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_menu() */
+
+
+/*
+ * Print menu item
+ */
+static void print_item(WINDOW *win, unsigned char *tag, unsigned char *item, int choice, int selected)
+{
+  int i;
+
+  /* Clear 'residue' of last item */
+  wattrset(win, menubox_attr);
+  wmove(win, choice, 0);
+  for (i = 0; i < menu_width; i++)
+    waddch(win, ' ');
+  wmove(win, choice, tag_x);
+  wattrset(win, selected ? tag_key_selected_attr : tag_key_attr);
+  waddch(win, tag[0]);
+  wattrset(win, selected ? tag_selected_attr : tag_attr);
+  waddstr(win, tag + 1);
+  wmove(win, choice, item_x);
+  wattrset(win, selected ? item_selected_attr : item_attr);
+  waddstr(win, item);
+}
+/* End of print_item() */
diff --git a/gnu/lib/libdialog/msgbox.c b/gnu/lib/libdialog/msgbox.c
new file mode 100644
index 0000000..c28a7c8
--- /dev/null
+++ b/gnu/lib/libdialog/msgbox.c
@@ -0,0 +1,82 @@
+/*
+ *  msgbox.c -- implements the message box and info box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+/*
+ * Display a message box. Program will pause and display an "OK" button
+ * if the parameter 'pause' is non-zero.
+ */
+int dialog_msgbox(unsigned char *title, unsigned char *prompt, int height, int width, int pause)
+{
+  int i, x, y, key = 0;
+  WINDOW *dialog;
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width-2, 1, 2);
+
+  if (pause) {
+    wattrset(dialog, border_attr);
+    wmove(dialog, height-3, 0);
+    waddch(dialog, ACS_LTEE);
+    for (i = 0; i < width-2; i++)
+      waddch(dialog, ACS_HLINE);
+    wattrset(dialog, dialog_attr);
+    waddch(dialog, ACS_RTEE);
+    wmove(dialog, height-2, 1);
+    for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+    print_button(dialog, "  OK  ", height-2, width/2-4, TRUE);
+    wrefresh(dialog);
+    while (key != ESC && key != '\n' && key != ' ')
+      key = wgetch(dialog);
+  }
+  else {
+    key = '\n';
+    wrefresh(dialog);
+  }
+
+  delwin(dialog);
+  return (key == ESC ? -1 : 0);
+}
+/* End of dialog_msgbox() */
diff --git a/gnu/lib/libdialog/radiolist.c b/gnu/lib/libdialog/radiolist.c
new file mode 100644
index 0000000..fd69bb8
--- /dev/null
+++ b/gnu/lib/libdialog/radiolist.c
@@ -0,0 +1,368 @@
+/*
+ *  radiolist.c -- implements the radiolist box
+ *
+ *  AUTHOR: Stuart Herbert - S.Herbert@sheffield.ac.uk
+ *   (from checklist.c by Savio Lam (lam836@cs.cuhk.hk))
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+static void print_item(WINDOW *win, char *tag, char *item, int status, int choice, int selected);
+
+
+static int list_width, check_x, item_x;
+
+
+/*
+ * Display a dialog box with a list of options that can be turned on or off
+ */
+int dialog_radiolist(char *title, char *prompt, int height, int width, int list_height, int item_no, unsigned char **items, unsigned char *result)
+{
+  int i, x, y, cur_x, cur_y, box_x, box_y, key = 0, button = 0, choice = 0,
+      scroll = 0, max_choice, *status, was_on = 0;
+  WINDOW *dialog, *list;
+
+  /* Allocate space for storing item on/off status */
+  if ((status = malloc(sizeof(int)*item_no)) == NULL) {
+    endwin();
+    fprintf(stderr, "\nCan't allocate memory in dialog_radiolist().\n");
+    exit(-1);
+  }
+  /* Initializes status */
+  for (i = 0; i < item_no; i++) {
+    status[i] = !strcasecmp(items[i*3 + 2], "on");
+    if (status[i])
+      if (was_on) {
+	endwin();
+	fprintf(stderr, "\nOnly one status can be ON in dialog_radiolist().\n");
+	exit(-1);
+      } else
+	was_on = 1;
+  }
+  max_choice = MIN(list_height, item_no);
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+  
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width, 1, 3);
+
+  list_width = width-6;
+  getyx(dialog, cur_y, cur_x);
+  box_y = cur_y + 1;
+  box_x = (width - list_width)/2 - 1;
+
+  /* create new window for the list */
+  list = subwin(dialog, list_height, list_width, y + box_y + 1, x + box_x + 1);
+  keypad(list, TRUE);
+
+  /* draw a box around the list items */
+  draw_box(dialog, box_y, box_x, list_height+2, list_width+2, menubox_border_attr, menubox_attr);
+
+  check_x = 0;
+  item_x = 0;
+  /* Find length of longest item in order to center radiolist */
+  for (i = 0; i < item_no; i++) {
+    check_x = MAX(check_x, strlen(items[i*3]) + strlen(items[i*3 + 1]) + 6);
+    item_x = MAX(item_x, strlen(items[i*3]));
+  }
+  check_x = (list_width - check_x) / 2;
+  item_x = check_x + item_x + 6;
+
+  /* Print the list */
+  for (i = 0; i < max_choice; i++)
+    print_item(list, items[i*3], items[i*3 + 1], status[i], i, i == choice);
+  wnoutrefresh(list);
+
+  if (list_height < item_no) {
+    wattrset(dialog, darrow_attr);
+    wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+    waddch(dialog, ACS_DARROW);
+    wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+    waddstr(dialog, "(+)");
+  }
+
+  x = width/2-11;
+  y = height-2;
+  print_button(dialog, "Cancel", y, x+14, FALSE);
+  print_button(dialog, "  OK  ", y, x, TRUE);
+  wrefresh(dialog);
+
+  while (key != ESC) {
+    key = wgetch(dialog);
+    /* Check if key pressed matches first character of any item tag in list */
+    for (i = 0; i < max_choice; i++)
+      if (toupper(key) == toupper(items[(scroll+i)*3][0]))
+        break;
+
+    if (i < max_choice || (key >= '1' && key <= MIN('9', '0'+max_choice)) || 
+        key == KEY_UP || key == KEY_DOWN || key == ' ' ||
+        key == '+' || key == '-' ) {
+      if (key >= '1' && key <= MIN('9', '0'+max_choice))
+        i = key - '1';
+      else if (key == KEY_UP || key == '-') {
+        if (!choice) {
+          if (scroll) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll--;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint list to scroll down */
+            for (i = 0; i < max_choice; i++)
+              print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice);
+
+#else
+
+            /* Scroll list down */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (list_height > 1) {
+              /* De-highlight current first item before scrolling down */
+              print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, FALSE);
+              scrollok(list, TRUE);
+              wscrl(list, -1);
+              scrollok(list, FALSE);
+            }
+            scroll--;
+            print_item(list, items[scroll*3], items[scroll*3 + 1], status[scroll], 0, TRUE);
+#endif
+            wnoutrefresh(list);
+
+            /* print the up/down arrows */
+            wmove(dialog, box_y, box_x + check_x + 5);
+            wattrset(dialog, scroll ? uarrow_attr : menubox_attr);
+            waddch(dialog, scroll ? ACS_UARROW : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 6);
+            waddch(dialog, scroll ? '(' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 7);
+            waddch(dialog, scroll ? '-' : ACS_HLINE);
+            wmove(dialog, box_y, box_x + check_x + 8);
+            waddch(dialog, scroll ? ')' : ACS_HLINE);
+            wattrset(dialog, darrow_attr);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+            waddch(dialog, ACS_DARROW);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+            waddch(dialog, '(');
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 7);
+            waddch(dialog, '+');
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 8);
+            waddch(dialog, ')');
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice - 1;
+      }
+      else if (key == KEY_DOWN || key == '+') {
+        if (choice == max_choice - 1) {
+          if (scroll+choice < item_no-1) {
+#ifdef BROKEN_WSCRL
+    /* wscrl() in ncurses 1.8.1 seems to be broken, causing a segmentation
+       violation when scrolling windows of height = 4, so scrolling is not
+       used for now */
+            scroll++;
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            /* Reprint list to scroll up */
+            for (i = 0; i < max_choice; i++)
+              print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice);
+
+#else
+
+            /* Scroll list up */
+            getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+            if (list_height > 1) {
+              /* De-highlight current last item before scrolling up */
+              print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1], status[scroll+max_choice-1], max_choice-1, FALSE);
+              scrollok(list, TRUE);
+              scroll(list);
+              scrollok(list, FALSE);
+            }
+            scroll++;
+            print_item(list, items[(scroll+max_choice-1)*3], items[(scroll+max_choice-1)*3 + 1], status[scroll+max_choice-1], max_choice-1, TRUE);
+#endif
+            wnoutrefresh(list);
+
+            /* print the up/down arrows */
+            wattrset(dialog, uarrow_attr);
+            wmove(dialog, box_y, box_x + check_x + 5);
+            waddch(dialog, ACS_UARROW);
+            wmove(dialog, box_y, box_x + check_x + 6);
+            waddstr(dialog, "(-)");
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 5);
+            wattrset(dialog, scroll+choice < item_no-1 ? darrow_attr : menubox_border_attr);
+            waddch(dialog, scroll+choice < item_no-1 ? ACS_DARROW : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 6);
+            waddch(dialog, scroll+choice < item_no-1 ? '(' : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 7);
+            waddch(dialog, scroll+choice < item_no-1 ? '+' : ACS_HLINE);
+            wmove(dialog, box_y + list_height + 1, box_x + check_x + 8);
+            waddch(dialog, scroll+choice < item_no-1 ? ')' : ACS_HLINE);
+            wmove(dialog, cur_y, cur_x);  /* Restore cursor position */
+            wrefresh(dialog);
+          }
+          continue;    /* wait for another key press */
+        }
+        else
+          i = choice + 1;
+      }
+      else if (key == ' ') {    /* Toggle item status */
+	if (!status[scroll+choice])
+	{
+  	  for (i=0; i<item_no; i++)
+	    status[i]=0;
+	  status[scroll+choice]=1;
+          getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+          for (i = 0; i < max_choice; i++)
+            print_item(list, items[(scroll+i)*3], items[(scroll+i)*3 + 1], status[scroll+i], i, i == choice);
+          wnoutrefresh(list);
+          wmove(dialog, cur_y, cur_x);  /* Restore cursor to previous position */
+          wrefresh(dialog);
+	}
+        continue;    /* wait for another key press */
+      }
+
+      if (i != choice) {
+        /* De-highlight current item */
+        getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+	print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 +1], status[scroll+choice], choice, FALSE);
+        /* Highlight new item */
+        choice = i;
+        print_item(list, items[(scroll+choice)*3], items[(scroll+choice)*3 + 1], status[scroll+choice], choice, TRUE);
+        wnoutrefresh(list);
+        wmove(dialog, cur_y, cur_x);  /* Restore cursor to previous position */
+        wrefresh(dialog);
+      }
+      continue;    /* wait for another key press */
+    }
+
+    switch (key) {
+      case 'O':
+      case 'o':
+        delwin(dialog);
+	*result = '\0';
+        for (i = 0; i < item_no; i++)
+	  if (status[i]) {
+	    strcpy(result, items[i*3]);
+	    break;
+	  }
+        free(status);
+        return 0;
+      case 'C':
+      case 'c':
+        delwin(dialog);
+        free(status);
+        return 1;
+      case KEY_BTAB:
+      case TAB:
+      case KEY_LEFT:
+      case KEY_RIGHT:
+        if (!button) {
+          button = 1;    /* Indicates "Cancel" button is selected */
+          print_button(dialog, "  OK  ", y, x, FALSE);
+          print_button(dialog, "Cancel", y, x+14, TRUE);
+        }
+        else {
+          button = 0;    /* Indicates "OK" button is selected */
+          print_button(dialog, "Cancel", y, x+14, FALSE);
+          print_button(dialog, "  OK  ", y, x, TRUE);
+        }
+        wrefresh(dialog);
+        break;
+      case ' ':
+      case '\n':
+        delwin(dialog);
+	if (!button) {
+	  *result = '\0';
+          for (i = 0; i < item_no; i++)
+	    if (status[i]) {
+	      strcpy(result, items[i*3]);
+	      break;
+	    }
+	}
+        free(status);
+        return button;
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  free(status);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_radiolist() */
+
+
+/*
+ * Print list item
+ */
+static void print_item(WINDOW *win, char *tag, char *item, int status, int choice, int selected)
+{
+  int i;
+
+  /* Clear 'residue' of last item */
+  wattrset(win, menubox_attr);
+  wmove(win, choice, 0);
+  for (i = 0; i < list_width; i++)
+    waddch(win, ' ');
+  wmove(win, choice, check_x);
+  wattrset(win, selected ? check_selected_attr : check_attr);
+  wprintw(win, "(%c)", status ? '*' : ' ');
+  wattrset(win, menubox_attr);
+  waddch(win, ' ');
+  wattrset(win, selected ? tag_key_selected_attr : tag_key_attr);
+  waddch(win, tag[0]);
+  wattrset(win, selected ? tag_selected_attr : tag_attr);
+  waddstr(win, tag + 1);
+  wmove(win, choice, item_x);
+  wattrset(win, selected ? item_selected_attr : item_attr);
+  waddstr(win, item);
+}
+/* End of print_item() */
diff --git a/gnu/lib/libdialog/rc.c b/gnu/lib/libdialog/rc.c
new file mode 100644
index 0000000..7d244da
--- /dev/null
+++ b/gnu/lib/libdialog/rc.c
@@ -0,0 +1,375 @@
+/*
+ *  rc.c -- routines for processing the configuration file
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "dialog.priv.h"
+#include <dialog.h>
+#include "colors.h"
+#include "rc.h"
+
+
+static unsigned char *attr_to_str(int fg, int bg, int hl);
+static int str_to_attr(unsigned char *str, int *fg, int *bg, int *hl);
+static int parse_line(unsigned char *line, unsigned char **var, unsigned char **value);
+
+
+/*
+ * Create the configuration file
+ */
+void dialog_create_rc(unsigned char *filename)
+{
+  int i;
+  FILE *rc_file;
+
+  if ((rc_file = fopen(filename, "wt")) == NULL) {
+    fprintf(stderr, "\nError opening file for writing in create_rc().\n");
+    exit(-1);
+  }
+
+  fprintf(rc_file, "#\
+\n# Run-time configuration file for dialog\
+\n#\
+\n# Automatically generated by \"dialog --create-rc <file>\"\
+\n#\
+\n#\
+\n# Types of values:\
+\n#\
+\n# Number     -  <number>\
+\n# String     -  \"string\"\
+\n# Boolean    -  <ON|OFF>\
+\n# Attribute  -  (foreground,background,highlight?)\
+\n#\n\n");
+
+  /* Print an entry for each configuration variable */
+  for (i = 0; i < VAR_COUNT; i++) {
+    fprintf(rc_file, "\n# %s\n", vars[i].comment);    /* print comment */
+    switch (vars[i].type) {
+      case VAL_INT:
+        fprintf(rc_file, "%s = %d\n", vars[i].name, *((int *) vars[i].var));
+        break;
+      case VAL_STR:
+        fprintf(rc_file, "%s = \"%s\"\n", vars[i].name, (unsigned char *) vars[i].var);
+        break;
+      case VAL_BOOL:
+        fprintf(rc_file, "%s = %s\n", vars[i].name, *((bool *) vars[i].var) ? "ON" : "OFF");
+        break;
+      case VAL_ATTR:
+        fprintf(rc_file, "%s = %s\n", vars[i].name, attr_to_str(((int *) vars[i].var)[0], ((int *) vars[i].var)[1], ((int *) vars[i].var)[2]));
+        break;
+    }
+  }
+
+  fclose(rc_file);
+}
+/* End of create_rc() */
+
+
+/*
+ * Parse the configuration file and set up variables
+ */
+int parse_rc(void)
+{
+  int i, l = 1, parse, fg, bg, hl;
+  unsigned char str[MAX_LEN+1], *var, *value, *tempptr;
+  FILE *rc_file;
+
+  /*
+   *
+   *  At start, 'dialog' determines the settings to use as follows:
+   *
+   *  a) if environment variable DIALOGRC is set, it's value determines the
+   *     name of the configuration file.
+   *
+   *  b) if the file in (a) can't be found, use the file $HOME/.dialogrc
+   *     as the configuration file.
+   *
+   *  c) if the file in (b) can't be found, use compiled in defaults.
+   *
+   */
+
+  if ((tempptr = getenv("DIALOGRC")) != NULL)
+    rc_file = fopen(tempptr, "rt");
+
+  if (tempptr == NULL || rc_file == NULL) {    /* step (a) failed? */
+    /* try step (b) */
+    if ((tempptr = getenv("HOME")) == NULL)
+      return 0;    /* step (b) failed, use default values */
+
+    if (tempptr[0] == '\0' || lastch(tempptr) == '/')
+      sprintf(str, "%s%s", tempptr, DIALOGRC);
+    else
+      sprintf(str, "%s/%s", tempptr, DIALOGRC);
+
+    if ((rc_file = fopen(str, "rt")) == NULL)
+      return 0;    /* step (b) failed, use default values */
+  }
+
+  /* Scan each line and set variables */
+  while (fgets(str, MAX_LEN, rc_file) != NULL) {
+    if (lastch(str) != '\n') {    /* ignore rest of file if line too long */
+      fprintf(stderr, "\nParse error: line %d of configuration file too long.\n", l);
+      fclose(rc_file);
+      return -1;    /* parse aborted */
+    }
+    else {
+      lastch(str) = '\0';
+      parse = parse_line(str, &var, &value);    /* parse current line */
+
+      switch (parse) {
+	case LINE_BLANK:    /* ignore blank lines and comments */
+        case LINE_COMMENT:
+          break;
+        case LINE_OK:
+          /* search table for matching config variable name */
+          for (i = 0; i < VAR_COUNT && strcmp(vars[i].name, var); i++);
+
+          if (i == VAR_COUNT) {    /* no match */
+            fprintf(stderr, "\nParse error: unknown variable at line %d of configuration file.\n", l);
+            return -1;    /* parse aborted */
+          }
+          else {    /* variable found in table, set run time variables */
+            switch (vars[i].type) {
+              case VAL_INT:
+                *((int *) vars[i].var) = atoi(value);
+                break;
+              case VAL_STR:
+                if (!isquote(value[0]) || !isquote(lastch(value)) || strlen(value) < 2) {
+                  fprintf(stderr, "\nParse error: string value expected at line %d of configuration file.\n", l);
+                  return -1;    /* parse aborted */
+                }
+                else {
+                  /* remove the (") quotes */
+                  value++;
+                  lastch(value) = '\0';
+                  strcpy((unsigned char *) vars[i].var, value);
+		}
+                break;
+              case VAL_BOOL:
+                if (!strcasecmp(value, "ON"))
+                  *((bool *) vars[i].var) = TRUE;
+                else if (!strcasecmp(value, "OFF"))
+                  *((bool *) vars[i].var) = FALSE;
+                else {
+                  fprintf(stderr, "\nParse error: boolean value expected at line %d of configuration file.\n", l);
+                  return -1;    /* parse aborted */
+                }
+                break;
+              case VAL_ATTR:
+                if (str_to_attr(value, &fg, &bg, &hl) == -1) {
+                  fprintf(stderr, "\nParse error: attribute value expected at line %d of configuration file.\n", l);
+                  return -1;    /* parse aborted */
+                }
+                ((int *) vars[i].var)[0] = fg;
+                ((int *) vars[i].var)[1] = bg;
+                ((int *) vars[i].var)[2] = hl;
+                break;
+            }
+          }
+          break;
+        case LINE_ERROR:
+          fprintf(stderr, "\nParse error: syntax error at line %d of configuration file.\n", l);
+          return -1;    /* parse aborted */
+      }
+    }
+
+    l++;    /* next line */
+  }
+
+  fclose(rc_file);
+  return 0;    /* parse successful */
+}
+/* End of parse_rc() */
+
+
+/*
+ * Convert an attribute to a string representation like this:
+ *
+ * "(foreground,background,highlight)"
+ */
+static unsigned char *attr_to_str(int fg, int bg, int hl)
+{
+  int i;
+  static unsigned char str[MAX_LEN+1];
+
+  strcpy(str, "(");
+  /* foreground */
+  for (i = 0; fg != color_names[i].value; i++);
+  strcat(str, color_names[i].name);
+  strcat(str, ",");
+
+  /* background */
+  for (i = 0; bg != color_names[i].value; i++);
+  strcat(str, color_names[i].name);
+
+  /* highlight */
+  strcat(str, hl ? ",ON)" : ",OFF)");
+
+  return str;
+}
+/* End of attr_to_str() */
+
+
+/*
+ * Extract the foreground, background and highlight values from an attribute
+ * represented as a string in this form:
+ *
+ * "(foreground,background,highlight)"
+ */
+static int str_to_attr(unsigned char *str, int *fg, int *bg, int *hl)
+{
+  int i = 0, j, get_fg = 1;
+  unsigned char tempstr[MAX_LEN+1], *part;
+
+  if (str[0] != '(' || lastch(str) != ')')
+    return -1;    /* invalid representation */
+
+  /* remove the parenthesis */
+  strcpy(tempstr, str + 1);
+  lastch(tempstr) = '\0';
+
+
+  /* get foreground and background */
+
+  while (1) {
+    /* skip white space before fg/bg string */
+    while (whitespace(tempstr[i]) && tempstr[i] != '\0') i++;
+    if (tempstr[i] == '\0')
+      return -1;    /* invalid representation */
+    part = tempstr + i;    /* set 'part' to start of fg/bg string */
+
+    /* find end of fg/bg string */
+    while(!whitespace(tempstr[i]) && tempstr[i] != ',' && tempstr[i] != '\0') i++;
+
+    if (tempstr[i] == '\0')
+      return -1;    /* invalid representation */
+    else if (whitespace(tempstr[i])) {   /* not yet ',' */
+      tempstr[i++] = '\0';
+
+      /* skip white space before ',' */
+      while(whitespace(tempstr[i]) && tempstr[i] != '\0') i++;
+
+      if (tempstr[i] != ',')
+        return -1;    /* invalid representation */
+    }
+
+    tempstr[i++] = '\0';    /* skip the ',' */
+    for (j = 0; j < COLOR_COUNT && strcasecmp(part, color_names[j].name); j++);
+    if (j == COLOR_COUNT)    /* invalid color name */
+      return -1;
+    if (get_fg) {
+      *fg = color_names[j].value;
+      get_fg = 0;    /* next we have to get the background */
+    }
+    else {
+      *bg = color_names[j].value;
+      break;
+    }
+  }   /* got foreground and background */
+
+
+  /* get highlight */
+
+  /* skip white space before highlight string */
+  while (whitespace(tempstr[i]) && tempstr[i] != '\0') i++;
+  if (tempstr[i] == '\0')
+    return -1;    /* invalid representation */
+  part = tempstr + i;    /* set 'part' to start of highlight string */
+
+  /* trim trailing white space from highlight string */
+  i = strlen(part) - 1;
+  while(whitespace(part[i])) i--;
+  part[i+1] = '\0';
+
+  if (!strcasecmp(part, "ON"))
+    *hl = TRUE;
+  else if (!strcasecmp(part, "OFF"))
+    *hl = FALSE;
+  else
+    return -1;    /* invalid highlight value */
+
+  return 0;
+}
+/* End of str_to_attr() */
+
+
+/*
+ * Parse a line in the configuration file
+ *
+ * Each line is of the form:  "variable = value". On exit, 'var' will contain
+ * the variable name, and 'value' will contain the value string.
+ *
+ * Return values:
+ *
+ * LINE_BLANK   - line is blank
+ * LINE_COMMENT - line is comment
+ * LINE_OK      - line is ok
+ * LINE_ERROR   - syntax error in line
+ */
+static int parse_line(unsigned char *line, unsigned char **var, unsigned char **value)
+{
+  int i = 0;
+
+  /* ignore white space at beginning of line */
+  while(whitespace(line[i]) && line[i] != '\0') i++;
+
+  if (line[i] == '\0')    /* line is blank */
+    return LINE_BLANK;
+  else if (line[i] == '#')    /* line is comment */
+    return LINE_COMMENT;
+  else if (line[i] == '=')    /* variables names can't strart with a '=' */
+    return LINE_ERROR;
+
+  /* set 'var' to variable name */
+  *var = line + i++;    /* skip to next character */
+
+  /* find end of variable name */
+  while(!whitespace(line[i]) && line[i] != '=' && line[i] != '\0') i++;
+
+  if (line[i] == '\0')    /* syntax error */
+    return LINE_ERROR;
+  else if (line[i] == '=')
+    line[i++] = '\0';
+  else {
+    line[i++] = '\0';
+
+    /* skip white space before '=' */
+    while(whitespace(line[i]) && line[i] != '\0') i++;
+
+    if (line[i] != '=')    /* syntax error */
+      return LINE_ERROR;
+    else
+      i++;    /* skip the '=' */
+  }
+
+  /* skip white space after '=' */
+  while(whitespace(line[i]) && line[i] != '\0') i++;
+
+  if (line[i] == '\0')
+    return LINE_ERROR;
+  else
+    *value = line + i;    /* set 'value' to value string */
+
+  /* trim trailing white space from 'value' */
+  i = strlen(*value) - 1;
+  while(whitespace((*value)[i])) i--;
+  (*value)[i+1] = '\0';
+
+  return LINE_OK;    /* no syntax error in line */
+}
+/* End of parse_line() */
diff --git a/gnu/lib/libdialog/rc.h b/gnu/lib/libdialog/rc.h
new file mode 100644
index 0000000..fc19d03
--- /dev/null
+++ b/gnu/lib/libdialog/rc.h
@@ -0,0 +1,222 @@
+/*
+ *  rc.h -- declarations for configuration file processing
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#define DIALOGRC ".dialogrc"
+#define VAR_LEN 30
+#define COMMENT_LEN 70
+
+/* Types of values */
+#define VAL_INT  0
+#define VAL_STR  1
+#define VAL_BOOL 2
+#define VAL_ATTR 3
+
+/* Type of line in configuration file */
+#define LINE_BLANK    2
+#define LINE_COMMENT  1
+#define LINE_OK       0
+#define LINE_ERROR   -1
+
+/* number of configuration variables */
+#define VAR_COUNT        (sizeof(vars) / sizeof(vars_st))
+
+/* check if character is white space */
+#define whitespace(c)    (c == ' ' || c == '\t')
+
+/* check if character is string quoting characters */
+#define isquote(c)       (c == '"' || c == '\'')
+
+/* get last character of string */
+#define lastch(str)      str[strlen(str)-1]
+
+/*
+ * Configuration variables
+ */
+typedef struct {
+  unsigned char      name[VAR_LEN];  /* name of configuration variable as in DIALOGRC */
+  void     *var;            /* address of actually variable to change */
+  int       type;           /* type of value */
+  unsigned char      comment[COMMENT_LEN];    /* comment to put in "rc" file */
+} vars_st;
+
+vars_st vars[] = {
+  {  "use_shadow",
+     &use_shadow,
+     VAL_BOOL,
+     "Shadow dialog boxes? This also turns on color."                        },
+
+  {  "use_colors",
+     &use_colors,
+     VAL_BOOL,
+     "Turn color support ON or OFF"                                          },
+
+  {  "screen_color",
+     color_table[0],
+     VAL_ATTR,
+     "Screen color"                                                          },
+
+  {  "shadow_color",
+     color_table[1],
+     VAL_ATTR,
+     "Shadow color"                                                          },
+
+  {  "dialog_color",
+     color_table[2],
+     VAL_ATTR,
+     "Dialog box color"                                                      },
+
+  {  "title_color",
+     color_table[3],
+     VAL_ATTR,
+     "Dialog box title color"                                                },
+
+  {  "border_color",
+     color_table[4],
+     VAL_ATTR,
+     "Dialog box border color"                                               },
+
+  {  "button_active_color",
+     color_table[5],
+     VAL_ATTR,
+     "Active button color"                                                   },
+
+  {  "button_inactive_color",
+     color_table[6],
+     VAL_ATTR,
+     "Inactive button color"                                                 },
+
+  {  "button_key_active_color",
+     color_table[7],
+     VAL_ATTR,
+     "Active button key color"                                               },
+
+  {  "button_key_inactive_color",
+     color_table[8],
+     VAL_ATTR,
+     "Inactive button key color"                                             },
+
+  {  "button_label_active_color",
+     color_table[9],
+     VAL_ATTR,
+     "Active button label color"                                             },
+
+  {  "button_label_inactive_color",
+     color_table[10],
+     VAL_ATTR,
+     "Inactive button label color"                                           },
+
+  {  "inputbox_color",
+     color_table[11],
+     VAL_ATTR,
+     "Input box color"                                                       },
+
+  {  "inputbox_border_color",
+     color_table[12],
+     VAL_ATTR,
+     "Input box border color"                                                },
+
+  {  "searchbox_color",
+     color_table[13],
+     VAL_ATTR,
+     "Search box color"                                                      },
+
+  {  "searchbox_title_color",
+     color_table[14],
+     VAL_ATTR,
+     "Search box title color"                                                },
+
+  {  "searchbox_border_color",
+     color_table[15],
+     VAL_ATTR,
+     "Search box border color"                                               },
+
+  {  "position_indicator_color",
+     color_table[16],
+     VAL_ATTR,
+     "File position indicator color"                                         },
+
+  {  "menubox_color",
+     color_table[17],
+     VAL_ATTR,
+     "Menu box color"                                                        },
+
+  {  "menubox_border_color",
+     color_table[18],
+     VAL_ATTR,
+     "Menu box border color"                                                 },
+
+  {  "item_color",
+     color_table[19],
+     VAL_ATTR,
+     "Item color"                                                            },
+
+  {  "item_selected_color",
+     color_table[20],
+     VAL_ATTR,
+     "Selected item color"                                                   },
+
+  {  "tag_color",
+     color_table[21],
+     VAL_ATTR,
+     "Tag color"                                                             },
+
+  {  "tag_selected_color",
+     color_table[22],
+     VAL_ATTR,
+     "Selected tag color"                                                    },
+
+  {  "tag_key_color",
+     color_table[23],
+     VAL_ATTR,
+     "Tag key color"                                                         },
+
+  {  "tag_key_selected_color",
+     color_table[24],
+     VAL_ATTR,
+     "Selected tag key color"                                                },
+
+  {  "check_color",
+     color_table[25],
+     VAL_ATTR,
+     "Check box color"                                                       },
+
+  {  "check_selected_color",
+     color_table[26],
+     VAL_ATTR,
+     "Selected check box color"                                              },
+
+  {  "uarrow_color",
+     color_table[27],
+     VAL_ATTR,
+     "Up arrow color"                                                        },
+
+  {  "darrow_color",
+     color_table[28],
+     VAL_ATTR,
+     "Down arrow color"                                                      }
+};    /* vars */
+
+
+
+/*
+ * Routines to process configuration file
+ */
+int parse_rc(void);
diff --git a/gnu/lib/libdialog/textbox.c b/gnu/lib/libdialog/textbox.c
new file mode 100644
index 0000000..e99cc86
--- /dev/null
+++ b/gnu/lib/libdialog/textbox.c
@@ -0,0 +1,710 @@
+/*
+ *  textbox.c -- implements the text box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+static void back_lines(int n);
+static void print_page(WINDOW *win, int height, int width);
+static void print_line(WINDOW *win, int row, int width);
+static unsigned char *get_line(void);
+static int get_search_term(WINDOW *win, unsigned char *search_term, int height, int width);
+static void print_position(WINDOW *win, int height, int width);
+
+
+static int hscroll = 0, fd, file_size, bytes_read, begin_reached = 1,
+           end_reached = 0, page_length;
+static unsigned char *buf, *page;
+
+
+/*
+ * Display text from a file in a dialog box.
+ */
+int dialog_textbox(unsigned char *title, unsigned char *file, int height, int width)
+{
+  int i, x, y, cur_x, cur_y, fpos, key = 0, dir, temp, temp1;
+#ifdef HAVE_NCURSES
+  int passed_end;
+#endif
+  unsigned char search_term[MAX_LEN+1], *tempptr, *found;
+  WINDOW *dialog, *text;
+
+  search_term[0] = '\0';    /* no search term entered yet */
+
+  /* Open input file for reading */
+  if ((fd = open(file, O_RDONLY)) == -1) {
+    endwin();
+    fprintf(stderr, "\nCan't open input file in dialog_textbox().\n");
+    exit(-1);
+  }
+  /* Get file size. Actually, 'file_size' is the real file size - 1,
+     since it's only the last byte offset from the beginning */
+  if ((file_size = lseek(fd, 0, SEEK_END)) == -1) {
+    endwin();
+    fprintf(stderr, "\nError getting file size in dialog_textbox().\n");
+    exit(-1);
+  }
+  /* Restore file pointer to beginning of file after getting file size */
+  if (lseek(fd, 0, SEEK_SET) == -1) {
+    endwin();
+    fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+    exit(-1);
+  }
+  /* Allocate space for read buffer */
+  if ((buf = malloc(BUF_SIZE+1)) == NULL) {
+    endwin();
+    fprintf(stderr, "\nCan't allocate memory in dialog_textbox().\n");
+    exit(-1);
+  }
+  if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+    endwin();
+    fprintf(stderr, "\nError reading file in dialog_textbox().\n");
+    exit(-1);
+  }
+  buf[bytes_read] = '\0';    /* mark end of valid data */
+  page = buf;    /* page is pointer to start of page to be displayed */
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  /* Create window for text region, used for scrolling text */
+/*  text = newwin(height-4, width-2, y+1, x+1); */
+  text = subwin(dialog, height-4, width-2, y+1, x+1);
+  keypad(text, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  print_button(dialog, " EXIT ", height-2, width/2-4, TRUE);
+  wnoutrefresh(dialog);
+  getyx(dialog, cur_y, cur_x);    /* Save cursor position */
+
+  /* Print first page of text */
+  attr_clear(text, height-4, width-2, dialog_attr);
+  print_page(text, height-4, width-2);
+  print_position(dialog, height, width);
+  wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+  wrefresh(dialog);
+
+  while ((key != ESC) && (key != '\n')) {
+    key = wgetch(dialog);
+    switch (key) {
+      case 'E':    /* Exit */
+      case 'e':
+        delwin(dialog);
+        free(buf);
+        close(fd);
+        return 0;
+      case 'g':    /* First page */
+      case KEY_HOME:
+        if (!begin_reached) {
+          begin_reached = 1;
+          /* First page not in buffer? */
+          if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+            endwin();
+            fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+            exit(-1);
+          }
+          if (fpos > bytes_read) {    /* Yes, we have to read it in */
+            if (lseek(fd, 0, SEEK_SET) == -1) {
+              endwin();
+              fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+              exit(-1);
+            }
+            if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+              endwin();
+              fprintf(stderr, "\nError reading file in dialog_textbox().\n");
+              exit(-1);
+            }
+            buf[bytes_read] = '\0';
+          }
+          page = buf;
+          print_page(text, height-4, width-2);
+          print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case 'G':    /* Last page */
+#ifdef HAVE_NCURSES
+      case KEY_END:
+#endif
+        end_reached = 1;
+        /* Last page not in buffer? */
+        if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+          endwin();
+          fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+          exit(-1);
+        }
+        if (fpos < file_size) {    /* Yes, we have to read it in */
+          if (lseek(fd, -BUF_SIZE, SEEK_END) == -1) {
+            endwin();
+            fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+            exit(-1);
+          }
+          if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+            endwin();
+            fprintf(stderr, "\nError reading file in dialog_textbox().\n");
+            exit(-1);
+          }
+          buf[bytes_read] = '\0';
+        }
+        page = buf + bytes_read;
+        back_lines(height-4);
+        print_page(text, height-4, width-2);
+        print_position(dialog, height, width);
+        wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+        wrefresh(dialog);
+        break;
+      case 'K':    /* Previous line */
+      case 'k':
+      case KEY_UP:
+        if (!begin_reached) {
+          back_lines(page_length+1);
+#ifdef HAVE_NCURSES
+          /* We don't call print_page() here but use scrolling to ensure
+             faster screen update. However, 'end_reached' and 'page_length'
+             should still be updated, and 'page' should point to start of
+             next page. This is done by calling get_line() in the following
+             'for' loop. */
+          scrollok(text, TRUE);
+          wscrl(text, -1);    /* Scroll text region down one line */
+          scrollok(text, FALSE);
+          page_length = 0;
+          passed_end = 0;
+          for (i = 0; i < height-4; i++) {
+            if (!i) {
+              print_line(text, 0, width-2);    /* print first line of page */
+              wnoutrefresh(text);
+            }
+            else
+              get_line();    /* Called to update 'end_reached' and 'page' */
+            if (!passed_end)
+              page_length++;
+            if (end_reached && !passed_end)
+              passed_end = 1;
+          }
+#else
+          print_page(text, height-4, width-2);
+#endif
+          print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case 'B':    /* Previous page */
+      case 'b':
+      case KEY_PPAGE:
+        if (!begin_reached) {
+          back_lines(page_length + height-4);
+          print_page(text, height-4, width-2);
+          print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case 'J':    /* Next line */
+      case 'j':
+      case KEY_DOWN:
+        if (!end_reached) {
+          begin_reached = 0;
+          scrollok(text, TRUE);
+          scroll(text);    /* Scroll text region up one line */
+          scrollok(text, FALSE);
+          print_line(text, height-5, width-2);
+#ifndef HAVE_NCURSES
+          wmove(text, height-5, 0);
+          waddch(text, ' ');
+          wmove(text, height-5, width-3);
+          waddch(text, ' ');
+#endif
+          wnoutrefresh(text);
+          print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case ' ':    /* Next page */
+      case KEY_NPAGE:
+        if (!end_reached) {
+          begin_reached = 0;
+          print_page(text, height-4, width-2);
+          print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case '0':    /* Beginning of line */
+      case 'H':    /* Scroll left */
+      case 'h':
+      case KEY_LEFT:
+        if (hscroll > 0) {
+          if (key == '0')
+            hscroll = 0;
+          else
+            hscroll--;
+          /* Reprint current page to scroll horizontally */
+          back_lines(page_length);
+          print_page(text, height-4, width-2);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case 'L':    /* Scroll right */
+      case 'l':
+      case KEY_RIGHT:
+        if (hscroll < MAX_LEN) {
+          hscroll++;
+          /* Reprint current page to scroll horizontally */
+          back_lines(page_length);
+          print_page(text, height-4, width-2);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        break;
+      case '/':    /* Forward search */
+      case 'n':    /* Repeat forward search */
+      case '?':    /* Backward search */
+      case 'N':    /* Repeat backward search */
+        /* set search direction */
+        dir = (key == '/' || key == 'n') ? 1 : 0;
+        if (dir ? !end_reached : !begin_reached) {
+          if (key == 'n' || key == 'N') {
+            if (search_term[0] == '\0') {    /* No search term yet */
+              fprintf(stderr, "\a");    /* beep */
+              break;
+            }
+	  }
+          else    /* Get search term from user */
+            if (get_search_term(text, search_term, height-4, width-2) == -1) {
+              /* ESC pressed in get_search_term(). Reprint page to clear box */
+              wattrset(text, dialog_attr);
+              back_lines(page_length);
+              print_page(text, height-4, width-2);
+              wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+              wrefresh(dialog);
+              break;
+            }
+          /* Save variables for restoring in case search term can't be found */
+          tempptr = page;
+          temp = begin_reached;
+          temp1 = end_reached;
+          if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+            endwin();
+            fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+            exit(-1);
+          }
+          fpos -= bytes_read;
+          /* update 'page' to point to next (previous) line before
+             forward (backward) searching */
+          back_lines(dir ? page_length-1 : page_length+1);
+          found = NULL;
+          if (dir)    /* Forward search */
+            while((found = strstr(get_line(), search_term)) == NULL) {
+              if (end_reached)
+                break;
+	    }
+          else    /* Backward search */
+            while((found = strstr(get_line(), search_term)) == NULL) {
+              if (begin_reached)
+                break;
+              back_lines(2);
+            }
+          if (found == NULL) {    /* not found */
+            fprintf(stderr, "\a");    /* beep */
+            /* Restore program state to that before searching */
+            if (lseek(fd, fpos, SEEK_SET) == -1) {
+              endwin();
+              fprintf(stderr, "\nError moving file pointer in dialog_textbox().\n");
+              exit(-1);
+            }
+            if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+              endwin();
+              fprintf(stderr, "\nError reading file in dialog_textbox().\n");
+              exit(-1);
+            }
+            buf[bytes_read] = '\0';
+            page = tempptr;
+            begin_reached = temp;
+            end_reached = temp1;
+            /* move 'page' to point to start of current page in order to
+               re-print current page. Note that 'page' always points to
+               start of next page, so this is necessary */
+            back_lines(page_length);
+          }
+          else    /* Search term found */
+            back_lines(1);
+          /* Reprint page */
+          wattrset(text, dialog_attr);
+          print_page(text, height-4, width-2);
+          if (found != NULL)
+            print_position(dialog, height, width);
+          wmove(dialog, cur_y, cur_x);    /* Restore cursor position */
+          wrefresh(dialog);
+        }
+        else    /* no need to find */
+          fprintf(stderr, "\a");    /* beep */
+        break;
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  free(buf);
+  close(fd);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_textbox() */
+
+
+/*
+ * Go back 'n' lines in text file. Called by dialog_textbox().
+ * 'page' will be updated to point to the desired line in 'buf'.
+ */
+static void back_lines(int n)
+{
+  int i, fpos;
+
+  begin_reached = 0;
+  /* We have to distinguish between end_reached and !end_reached since at end
+     of file, the line is not ended by a '\n'. The code inside 'if' basically
+     does a '--page' to move one character backward so as to skip '\n' of the
+     previous line */
+  if (!end_reached) {
+    /* Either beginning of buffer or beginning of file reached? */
+    if (page == buf) {
+      if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+        endwin();
+        fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+        exit(-1);
+      }
+      if (fpos > bytes_read) {    /* Not beginning of file yet */
+        /* We've reached beginning of buffer, but not beginning of file yet,
+           so read previous part of file into buffer. Note that we only
+           move backward for BUF_SIZE/2 bytes, but not BUF_SIZE bytes to
+           avoid re-reading again in print_page() later */
+        /* Really possible to move backward BUF_SIZE/2 bytes? */
+        if (fpos < BUF_SIZE/2 + bytes_read) {
+          /* No, move less then */
+          if (lseek(fd, 0, SEEK_SET) == -1) {
+            endwin();
+            fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+            exit(-1);
+          }
+          page = buf + fpos - bytes_read;
+        }
+        else {    /* Move backward BUF_SIZE/2 bytes */
+          if (lseek(fd, -(BUF_SIZE/2 + bytes_read), SEEK_CUR) == -1) {
+            endwin();
+            fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+            exit(-1);
+          }
+          page = buf + BUF_SIZE/2;
+        }
+        if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+          endwin();
+          fprintf(stderr, "\nError reading file in back_lines().\n");
+          exit(-1);
+        }
+        buf[bytes_read] = '\0';
+      }
+      else {    /* Beginning of file reached */
+        begin_reached = 1;
+        return;
+      }
+    }
+    if (*(--page) != '\n') {    /* '--page' here */
+      /* Something's wrong... */
+      endwin();
+      fprintf(stderr, "\nInternal error in back_lines().\n");
+      exit(-1);
+    }
+  }
+
+  /* Go back 'n' lines */
+  for (i = 0; i < n; i++)
+    do {
+      if (page == buf) {
+        if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+          endwin();
+          fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+          exit(-1);
+        }
+        if (fpos > bytes_read) {
+          /* Really possible to move backward BUF_SIZE/2 bytes? */
+          if (fpos < BUF_SIZE/2 + bytes_read) {
+            /* No, move less then */
+            if (lseek(fd, 0, SEEK_SET) == -1) {
+              endwin();
+              fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+              exit(-1);
+            }
+            page = buf + fpos - bytes_read;
+          }
+          else {    /* Move backward BUF_SIZE/2 bytes */
+            if (lseek(fd, -(BUF_SIZE/2 + bytes_read), SEEK_CUR) == -1) {
+              endwin();
+              fprintf(stderr, "\nError moving file pointer in back_lines().\n");
+              exit(-1);
+            }
+            page = buf + BUF_SIZE/2;
+          }
+          if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+            endwin();
+            fprintf(stderr, "\nError reading file in back_lines().\n");
+            exit(-1);
+          }
+          buf[bytes_read] = '\0';
+        }
+        else {    /* Beginning of file reached */
+          begin_reached = 1;
+          return;
+        }
+      }
+    } while (*(--page) != '\n');
+  page++;
+}
+/* End of back_lines() */
+
+
+/*
+ * Print a new page of text. Called by dialog_textbox().
+ */
+static void print_page(WINDOW *win, int height, int width)
+{
+  int i, passed_end = 0;
+
+  page_length = 0;
+  for (i = 0; i < height; i++) {
+    print_line(win, i, width);
+    if (!passed_end)
+      page_length++;
+    if (end_reached && !passed_end)
+      passed_end = 1;
+  }
+  wnoutrefresh(win);
+}
+/* End of print_page() */
+
+
+/*
+ * Print a new line of text. Called by dialog_textbox() and print_page().
+ */
+static void print_line(WINDOW *win, int row, int width)
+{
+  int i, y, x;
+  unsigned char *line;
+
+  line = get_line();
+  line += MIN(strlen(line),hscroll);    /* Scroll horizontally */
+  wmove(win, row, 0);    /* move cursor to correct line */
+  waddch(win,' ');
+#ifdef HAVE_NCURSES
+  waddnstr(win, line, MIN(strlen(line),width-2));
+#else
+  line[MIN(strlen(line),width-2)] = '\0';
+  waddstr(win, line);
+#endif
+
+  getyx(win, y, x);
+  /* Clear 'residue' of previous line */
+  for (i = 0; i < width-x; i++)
+    waddch(win, ' ');
+}
+/* End of print_line() */
+
+
+/*
+ * Return current line of text. Called by dialog_textbox() and print_line().
+ * 'page' should point to start of current line before calling, and will be
+ * updated to point to start of next line.
+ */
+static unsigned char *get_line(void)
+{
+  int i = 0, fpos;
+  static unsigned char line[MAX_LEN+1];
+
+  end_reached = 0;
+  while (*page != '\n') {
+    if (*page == '\0') {    /* Either end of file or end of buffer reached */
+      if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+        endwin();
+        fprintf(stderr, "\nError moving file pointer in get_line().\n");
+        exit(-1);
+      }
+      if (fpos < file_size) {    /* Not end of file yet */
+        /* We've reached end of buffer, but not end of file yet, so read next
+           part of file into buffer */
+        if ((bytes_read = read(fd, buf, BUF_SIZE)) == -1) {
+          endwin();
+          fprintf(stderr, "\nError reading file in get_line().\n");
+          exit(-1);
+        }
+        buf[bytes_read] = '\0';
+        page = buf;
+      }
+      else {
+        if (!end_reached)
+          end_reached = 1;
+        break;
+      }
+    }
+    else
+      if (i < MAX_LEN)
+        line[i++] = *(page++);
+      else {
+        if (i == MAX_LEN)  /* Truncate lines longer than MAX_LEN characters */
+          line[i++] = '\0';
+        page++;
+      }
+  }
+  if (i <= MAX_LEN)
+    line[i] = '\0';
+  if (!end_reached)
+    page++;    /* move pass '\n' */
+
+  return line;
+}
+/* End of get_line() */
+
+
+/*
+ * Display a dialog box and get the search term from user
+ */
+static int get_search_term(WINDOW *win, unsigned char *search_term, int height, int width)
+{
+  int i, x, y, input_x = 0, scroll = 0, key = 0,
+      box_height = 3, box_width = 30;
+
+  x = (width - box_width)/2;
+  y = (height - box_height)/2;
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(win, y, x, box_height, box_width);
+#endif
+  draw_box(win, y, x, box_height, box_width, dialog_attr, searchbox_border_attr);
+  wattrset(win, searchbox_title_attr);
+  wmove(win, y, x+box_width/2-4);
+  waddstr(win, " Search ");
+
+  box_width -= 2;
+  wmove(win, y+1, x+1);
+  wrefresh(win);
+  search_term[0] = '\0';
+  wattrset(win, searchbox_attr);
+  while (key != ESC) {
+    key = wgetch(win);
+    switch (key) {
+      case '\n':
+        if (search_term[0] != '\0')
+          return 0;
+        break;
+      case KEY_BACKSPACE:
+        if (input_x || scroll) {
+          if (!input_x) {
+            scroll = scroll < box_width-1 ? 0 : scroll-(box_width-1);
+            wmove(win, y+1, x+1);
+            for (i = 0; i < box_width; i++)
+              waddch(win, search_term[scroll+input_x+i] ?
+                            search_term[scroll+input_x+i] : ' ');
+            input_x = strlen(search_term) - scroll;
+          }
+          else
+            input_x--;
+          search_term[scroll+input_x] = '\0';
+          wmove(win, y+1, input_x + x+1);
+          waddch(win, ' ');
+          wmove(win, y+1, input_x + x+1);
+          wrefresh(win);
+        }
+        break;
+      case ESC:
+        break;
+      default:
+        if (isprint(key))
+          if (scroll+input_x < MAX_LEN) {
+            search_term[scroll+input_x] = key;
+            search_term[scroll+input_x+1] = '\0';
+            if (input_x == box_width-1) {
+              scroll++;
+              wmove(win, y+1, x+1);
+              for (i = 0; i < box_width-1; i++)
+                waddch(win, search_term[scroll+i]);
+            }
+            else {
+              wmove(win, y+1, input_x++ + x+1);
+              waddch(win, key);
+            }
+            wrefresh(win);
+          }
+    }
+  }
+
+  return -1;    /* ESC pressed */
+}
+/* End of get_search_term() */
+
+
+/*
+ * Print current position
+ */
+static void print_position(WINDOW *win, int height, int width)
+{
+  int fpos, percent;
+
+  if ((fpos = lseek(fd, 0, SEEK_CUR)) == -1) {
+    endwin();
+    fprintf(stderr, "\nError moving file pointer in print_position().\n");
+    exit(-1);
+  }
+  wattrset(win, position_indicator_attr);
+  percent = !file_size ? 100 : ((fpos-bytes_read+page-buf)*100)/file_size;
+  wmove(win, height-3, width-9);
+  wprintw(win, "(%3d%%)", percent);
+}
+/* End of print_position() */
diff --git a/gnu/lib/libdialog/yesno.c b/gnu/lib/libdialog/yesno.c
new file mode 100644
index 0000000..9a34fb5
--- /dev/null
+++ b/gnu/lib/libdialog/yesno.c
@@ -0,0 +1,114 @@
+/*
+ *  yesno.c -- implements the yes/no box
+ *
+ *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version 2
+ *  of the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include "dialog.priv.h"
+#include <dialog.h>
+
+
+/*
+ * Display a dialog box with two buttons - Yes and No
+ */
+int dialog_yesno(unsigned char *title, unsigned char * prompt, int height, int width)
+{
+  int i, x, y, key = 0, button = 0;
+  WINDOW *dialog;
+
+  /* center dialog box on screen */
+  x = (COLS - width)/2;
+  y = (LINES - height)/2;
+  
+#ifdef HAVE_NCURSES
+  if (use_shadow)
+    draw_shadow(stdscr, y, x, height, width);
+#endif
+  dialog = newwin(height, width, y, x);
+  keypad(dialog, TRUE);
+
+  draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
+  wattrset(dialog, border_attr);
+  wmove(dialog, height-3, 0);
+  waddch(dialog, ACS_LTEE);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ACS_HLINE);
+  wattrset(dialog, dialog_attr);
+  waddch(dialog, ACS_RTEE);
+  wmove(dialog, height-2, 1);
+  for (i = 0; i < width-2; i++)
+    waddch(dialog, ' ');
+
+  if (title != NULL) {
+    wattrset(dialog, title_attr);
+    wmove(dialog, 0, (width - strlen(title))/2 - 1);
+    waddch(dialog, ' ');
+    waddstr(dialog, title);
+    waddch(dialog, ' ');
+  }
+  wattrset(dialog, dialog_attr);
+  print_autowrap(dialog, prompt, width, 1, 3);
+
+  x = width/2-10;
+  y = height-2;
+  print_button(dialog, "  No  ", y, x+13, FALSE);
+  print_button(dialog, " Yes ", y, x, TRUE);
+  wrefresh(dialog);
+
+  while (key != ESC) {
+    key = wgetch(dialog);
+    switch (key) {
+      case 'Y':
+      case 'y':
+        delwin(dialog);
+        return 0;
+      case 'N':
+      case 'n':
+        delwin(dialog);
+        return 1;
+      case KEY_BTAB:
+      case TAB:
+      case KEY_UP:
+      case KEY_DOWN:
+      case KEY_LEFT:
+      case KEY_RIGHT:
+        if (!button) {
+          button = 1;    /* Indicates "No" button is selected */
+          print_button(dialog, " Yes ", y, x, FALSE);
+          print_button(dialog, "  No  ", y, x+13, TRUE);
+        }
+        else {
+          button = 0;    /* Indicates "Yes" button is selected */
+          print_button(dialog, "  No  ", y, x+13, FALSE);
+          print_button(dialog, " Yes ", y, x, TRUE);
+        }
+        wrefresh(dialog);
+        break;
+      case ' ':
+      case '\n':
+        delwin(dialog);
+        return button;
+      case ESC:
+        break;
+    }
+  }
+
+  delwin(dialog);
+  return -1;    /* ESC pressed */
+}
+/* End of dialog_yesno() */