[PATCH] ncurses based config

* [PATCH] ncurses based config
@ 2008-09-03 19:11 Nir Tzachar
  2008-09-03 19:38 ` Bartlomiej Zolnierkiewicz
                   ` (4 more replies)
  0 siblings, 5 replies; 27+ messages in thread
From: Nir Tzachar @ 2008-09-03 19:11 UTC (permalink / raw)
  To: linux-kernel; +Cc: zippel, linux-kbuild, Nir Tzachar

This patch was inspired by the kernel projects page, where an ncurses
replacement for menuconfig was mentioned (by Sam Ravnborg).

Building on menuconfig, this patch implements a more modern look interface using
ncurses and ncurses' satellite libraries (menu, panel, form). The implementation
does not depend on lxdialog, which is currently distributed with the kernel.

The only change outside of nconf.c is due to a name clash: both ncurses and
lkc.h define a fucntion named menu_init(). I changed the internal version's
name. 

Please consider the patch for merging. Comments are appreciated.

---
 scripts/kconfig/Makefile |   16 +-
 scripts/kconfig/lkc.h    |    2 +-
 scripts/kconfig/mconf.c  |    2 +
 scripts/kconfig/menu.c   |    2 +-
 scripts/kconfig/nconf.c  | 1852 ++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 1871 insertions(+), 3 deletions(-)
 create mode 100644 scripts/kconfig/nconf.c

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index fa1a7d5..3e59f70 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -15,6 +15,9 @@ gconfig: $(obj)/gconf
 menuconfig: $(obj)/mconf
 	$< $(Kconfig)
 
+nconfig: $(obj)/nconf
+	$< $(Kconfig)
+
 config: $(obj)/conf
 	$< $(Kconfig)
 
@@ -102,6 +105,8 @@ HOST_EXTRACFLAGS += -DLOCALE
 # conf:	  Used for defconfig, oldconfig and related targets
 # mconf:  Used for the mconfig target.
 #         Utilizes the lxdialog package
+# nconf:  Used for the nconfig target.
+#         Utilizes ncurses
 # qconf:  Used for the xconfig target
 #         Based on QT which needs to be installed to compile it
 # gconf:  Used for the gconfig target
@@ -113,6 +118,7 @@ lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
 
 conf-objs	:= conf.o  zconf.tab.o
 mconf-objs	:= mconf.o zconf.tab.o $(lxdialog)
+nconf-objs	:= nconf.o zconf.tab.o 
 kxgettext-objs	:= kxgettext.o zconf.tab.o
 
 hostprogs-y := conf qconf gconf kxgettext
@@ -121,6 +127,10 @@ ifeq ($(MAKECMDGOALS),menuconfig)
 	hostprogs-y += mconf
 endif
 
+ifeq ($(MAKECMDGOALS),nconfig)
+	hostprogs-y += nconf
+endif
+
 ifeq ($(MAKECMDGOALS),xconfig)
 	qconf-target := 1
 endif
@@ -140,7 +150,7 @@ endif
 
 clean-files	:= lkc_defs.h qconf.moc .tmp_qtcheck \
 		   .tmp_gtkcheck zconf.tab.c lex.zconf.c zconf.hash.c gconf.glade.h
-clean-files     += mconf qconf gconf
+clean-files     += mconf qconf gconf nconf
 clean-files     += config.pot linux.pot
 
 # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
@@ -158,6 +168,10 @@ HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh $(HOSTCC)
 HOSTCFLAGS_lex.zconf.o	:= -I$(src)
 HOSTCFLAGS_zconf.tab.o	:= -I$(src)
 
+HOSTLOADLIBES_nconf	= -lmenu -lpanel -lform -lncurses 
+HOSTCFLAGS_nconf.o	= 
+LDFLAGS_nconf.o	= 
+
 HOSTLOADLIBES_qconf	= $(KC_QT_LIBS) -ldl
 HOSTCXXFLAGS_qconf.o	= $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
 
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 4a9af6f..0e9c477 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -83,7 +83,7 @@ void conf_set_all_new_symbols(enum conf_def_mode mode);
 void kconfig_load(void);
 
 /* menu.c */
-void menu_init(void);
+void _menu_init(void);
 void menu_warn(struct menu *menu, const char *fmt, ...);
 struct menu *menu_add_menu(void);
 void menu_end_menu(void);
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 6841e95..8225458 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -6,6 +6,8 @@
  * 2002-11-06 Petr Baudis <pasky@ucw.cz>
  *
  * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * ncurses interface, 2008, Nir Tzachar <nir@tzachar.com>
  */
 
 #include <ctype.h>
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 07ff8d1..ade19a3 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -35,7 +35,7 @@ static void prop_warn(struct property *prop, const char *fmt, ...)
 	va_end(ap);
 }
 
-void menu_init(void)
+void _menu_init(void)
 {
 	current_entry = current_menu = &rootmenu;
 	last_entry_ptr = &rootmenu.list;
diff --git a/scripts/kconfig/nconf.c b/scripts/kconfig/nconf.c
new file mode 100644
index 0000000..3ad4559
--- /dev/null
+++ b/scripts/kconfig/nconf.c
@@ -0,0 +1,1852 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Introduced single menu mode (show all sub-menus in one large tree).
+ * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <locale.h>
+#include <curses.h>
+#include <menu.h>
+#include <panel.h>
+#include <form.h>
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+
+
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+#include "ncurses.h"
+
+#define max(a,b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a > _b ? _a : _b; })
+
+#define min(a,b) ({\
+		typeof(a) _a = a;\
+		typeof(b) _b = b;\
+		_a < _b ? _a : _b; })
+
+
+static const char mconf_readme[] = N_(
+"Overview\n"
+"--------\n"
+"Some kernel features may be built directly into the kernel.\n"
+"Some may be made into loadable runtime modules.  Some features\n"
+"may be completely removed altogether.  There are also certain\n"
+"kernel parameters which are not really features, but must be\n"
+"entered in as decimal or hexadecimal numbers or possibly text.\n"
+"\n"
+"Menu items beginning with following braces represent features that\n"
+"  [ ] can be built in or removed\n"
+"  < > can be built in, modularized or removed\n"
+"  { } can be built in or modularized (selected by other feature)\n"
+"  - - are selected by other feature,\n"
+"while *, M or whitespace inside braces means to build in, build as\n"
+"a module or to exclude the feature respectively.\n"
+"\n"
+"To change any of these features, highlight it with the cursor\n"
+"keys and press <Y> to build it in, <M> to make it a module or\n"
+"<N> to removed it.  You may also press the <Space Bar> to cycle\n"
+"through the available options (ie. Y->N->M->Y).\n"
+"\n"
+"Some additional keyboard hints:\n"
+"\n"
+"Menus\n"
+"----------\n"
+"o  Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
+"   you wish to change or submenu wish to select and press <Enter>.\n"
+"   Submenus are designated by \"--->\".\n"
+"\n"
+"   Shortcut: Press the option's highlighted letter (hotkey).\n"
+"             Pressing a hotkey more than once will sequence\n"
+"             through all visible items which use that hotkey.\n"
+"\n"
+"   You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+"   unseen options into view.\n"
+"\n"
+"o  To exit a menu use the cursor keys to highlight the <Exit> button\n"
+"   and press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
+"             using those letters.  You may press a single <ESC>, but\n"
+"             there is a delayed response which you may find annoying.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
+"   <Exit> and <Help>\n"
+"\n"
+"o  To get help with an item, use the cursor keys to highlight <Help>\n"
+"   and Press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"\n"
+"Radiolists  (Choice lists)\n"
+"-----------\n"
+"o  Use the cursor keys to select the option you wish to set and press\n"
+"   <S> or the <SPACE BAR>.\n"
+"\n"
+"   Shortcut: Press the first letter of the option you wish to set then\n"
+"             press <S> or <SPACE BAR>.\n"
+"\n"
+"o  To see available help for the item, use the cursor keys to highlight\n"
+"   <Help> and Press <ENTER>.\n"
+"\n"
+"   Shortcut: Press <H> or <?>.\n"
+"\n"
+"   Also, the <TAB> and cursor keys will cycle between <Select> and\n"
+"   <Help>\n"
+"\n"
+"\n"
+"Data Entry\n"
+"-----------\n"
+"o  Enter the requested information and press <ENTER>\n"
+"   If you are entering hexadecimal values, it is not necessary to\n"
+"   add the '0x' prefix to the entry.\n"
+"\n"
+"o  For help, use the <TAB> or cursor keys to highlight the help option\n"
+"   and press <ENTER>.  You can try <TAB><H> as well.\n"
+"\n"
+"\n"
+"Text Box    (Help Window)\n"
+"--------\n"
+"o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
+"   keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
+"   who are familiar with less and lynx.\n"
+"\n"
+"o  Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"Menuconfig supports the use of alternate configuration files for\n"
+"those who, for various reasons, find it necessary to switch\n"
+"between different kernel configurations.\n"
+"\n"
+"At the end of the main menu you will find two options.  One is\n"
+"for saving the current configuration to a file of your choosing.\n"
+"The other option is for loading a previously saved alternate\n"
+"configuration.\n"
+"\n"
+"Even if you don't use alternate configuration files, but you\n"
+"find during a Menuconfig session that you have completely messed\n"
+"up your settings, you may use the \"Load Alternate...\" option to\n"
+"restore your previously saved settings from \".config\" without\n"
+"restarting Menuconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use Menuconfig in an XTERM window make sure you have your\n"
+"$TERM variable set to point to a xterm definition which supports color.\n"
+"Otherwise, Menuconfig will look rather bad.  Menuconfig will not\n"
+"display correctly in a RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"Menuconfig will display larger menus on screens or xterms which are\n"
+"set to display more than the standard 25 row by 80 column geometry.\n"
+"In order for this to work, the \"stty size\" command must be able to\n"
+"display the screen's current row and column geometry.  I STRONGLY\n"
+"RECOMMEND that you make sure you do NOT have the shell variables\n"
+"LINES and COLUMNS exported into your environment.  Some distributions\n"
+"export those variables via /etc/profile.  Some ncurses programs can\n"
+"become confused when those variables (LINES & COLUMNS) don't reflect\n"
+"the true screen size.\n"
+"\n"
+"Optional personality available\n"
+"------------------------------\n"
+"If you prefer to have all of the kernel options listed in a single\n"
+"menu, rather than the default multimenu hierarchy, run the menuconfig\n"
+"with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
+"\n"
+"make MENUCONFIG_MODE = single_menu menuconfig\n"
+"\n"
+"<Enter> will then unroll the appropriate category, or enfold it if it\n"
+"is already unrolled.\n"
+"\n"
+"Note that this mode can eventually be a little more CPU expensive\n"
+"(especially with a larger number of unrolled categories) than the\n"
+"default mode.\n"
+"\n"
+"Different color themes available\n"
+"--------------------------------\n"
+"It is possible to select different color themes using the variable\n"
+"MENUCONFIG_COLOR. To select a theme use:\n"
+"\n"
+"make MENUCONFIG_COLOR = <theme> menuconfig\n"
+"\n"
+"Available themes are\n"
+" mono       => selects colors suitable for monochrome displays\n"
+" blackbg    => selects a color scheme with black background\n"
+" classic    => theme with blue background. The classic look\n"
+" bluetitle  => a LCD friendly version of classic. (default)\n"
+"\n"),
+menu_instructions[] = N_(
+	" Arrow keys navigate the menu.\n"
+	" <Enter> selects submenus --->.\n"
+	" Highlighted letters are hotkeys.\n"
+	" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
+	" Press <Esc><Esc> to exit, <?> for Help, </> for Search.\n"
+	" Legend: [*] built-in  [ ] excluded  <M> module  < > module capable.\n"),
+radiolist_instructions[] = N_(
+	" Use the arrow keys to navigate this window or\n"
+	" press the hotkey of the item you wish to select\n"
+	" followed by the <SPACE BAR>.\n"
+	" Press <?> for additional information about this option.\n"),
+inputbox_instructions_int[] = N_(
+	"Please enter a decimal value.\n"
+	"Fractions will not be accepted.\n"
+	"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_hex[] = N_(
+	"Please enter a hexadecimal value.\n"
+	"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_string[] = N_(
+	"Please enter a string value.\n"
+	"Press <RETURN> to accept, <ESC> to cancel."),
+setmod_text[] = N_(
+	"This feature depends on another which\n"
+	"has been configured as a module.\n"
+	"As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+	"There is no help available for this kernel option.\n"),
+load_config_text[] = N_(
+	"Enter the name of the configuration file you wish to load.\n"
+	"Accept the name shown to restore the configuration you\n"
+	"last retrieved.  Leave blank to abort."),
+load_config_help[] = N_(
+	"\n"
+	"For various reasons, one may wish to keep several different kernel\n"
+	"configurations available on a single machine.\n"
+	"\n"
+	"If you have saved a previous configuration in a file other than the\n"
+	"kernel's default, entering the name of the file here will allow you\n"
+	"to modify that configuration.\n"
+	"\n"
+	"If you are uncertain, then you have probably never used alternate\n"
+	"configuration files.  You should therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
+	"Enter a filename to which this configuration should be saved\n"
+	"as an alternate.  Leave blank to abort."),
+save_config_help[] = N_(
+	"\n"
+	"For various reasons, one may wish to keep different kernel\n"
+	"configurations available on a single machine.\n"
+	"\n"
+	"Entering a file name here will allow you to later retrieve, modify\n"
+	"and use the current configuration as an alternate to whatever\n"
+	"configuration options you have selected at that time.\n"
+	"\n"
+	"If you are uncertain what all this means then you should probably\n"
+	"leave this blank.\n"),
+search_help[] = N_(
+	"\n"
+	"Search for CONFIG_ symbols and display their relations.\n"
+	"Regular expressions are allowed.\n"
+	"Example: search for \"^FOO\"\n"
+	"Result:\n"
+	"-----------------------------------------------------------------\n"
+	"Symbol: FOO [ = m]\n"
+	"Prompt: Foo bus is used to drive the bar HW\n"
+	"Defined at drivers/pci/Kconfig:47\n"
+	"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+	"Location:\n"
+	"  -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
+	"    -> PCI support (PCI [ = y])\n"
+	"      -> PCI access mode (<choice> [ = y])\n"
+	"Selects: LIBCRC32\n"
+	"Selected by: BAR\n"
+	"-----------------------------------------------------------------\n"
+	"o The line 'Prompt:' shows the text used in the menu structure for\n"
+	"  this CONFIG_ symbol\n"
+	"o The 'Defined at' line tell at what file / line number the symbol\n"
+	"  is defined\n"
+	"o The 'Depends on:' line tell what symbols needs to be defined for\n"
+	"  this symbol to be visible in the menu (selectable)\n"
+	"o The 'Location:' lines tell where in the menu structure this symbol\n"
+	"  is located\n"
+	"    A location followed by a [ = y] indicate that this is a selectable\n"
+	"    menu item - and current value is displayed inside brackets.\n"
+	"o The 'Selects:' line tell what symbol will be automatically\n"
+	"  selected if this symbol is selected (y or m)\n"
+	"o The 'Selected by' line tell what symbol has selected this symbol\n"
+	"\n"
+	"Only relevant lines are shown.\n"
+	"\n\n"
+	"Search examples:\n"
+	"Examples: USB	 = > find all CONFIG_ symbols containing USB\n"
+	"          ^USB => find all CONFIG_ symbols starting with USB\n"
+	"          USB$ => find all CONFIG_ symbols ending with USB\n"
+	"\n");
+
+struct mitem {
+	char str[256];
+	char tag;
+	void *usrptr;
+};
+
+#define MAX_MENU_ITEMS 4096
+static int indent;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+/* the window in which all information appears */
+static WINDOW *main_window;
+static WINDOW *menu_window;
+/* the window in which we show instructions */
+static WINDOW *insts_window;
+/* the window in which we show option buttons */
+static WINDOW *btns_window;
+static MENU *curses_menu;
+static MENU *btns_menu;
+static ITEM *curses_menu_items[MAX_MENU_ITEMS];
+static ITEM *btns_items[4];
+static struct mitem k_menu_items[MAX_MENU_ITEMS];
+static int items_num;
+/* the currently selected button */
+static enum current_btn_t { BTN_SELECT = 0, BTN_EXIT, BTN_HELP}
+	current_btn = BTN_SELECT;
+
+static char *btns[] = {
+	"<Select>",
+	" <Exit> ",
+	" <Help> ",
+	NULL
+};
+
+static void refresh_all_windows(void);
+static void conf(struct menu *menu);
+static void conf_choice(struct menu *menu);
+static void conf_string(struct menu *menu);
+static void conf_load(void);
+static void conf_save(void);
+static void show_scroll_win(const char *title, const char *text);
+static void show_help(struct menu *menu);
+
+static enum attributes_t {
+	NORMAL = 1,
+	MAIN_HEADING,
+	MAIN_MENU_BOX,
+	MAIN_MENU_FORE,
+	MAIN_MENU_BACK,
+	MAIN_MENU_HEADING,
+	INSTS_WIN_BOX,
+	INSTS_WIN_HEADING,
+	INSTS_WIN_TEXT,
+	SCROLLWIN_TEXT,
+	SCROLLWIN_HEADING,
+	SCROLLWIN_BOX,
+	BOTTOM_MENU_FORE,
+	BOTTOM_MENU_BACK,
+	DIALOG_TEXT,
+	DIALOG_MENU_FORE,
+	DIALOG_MENU_BACK,
+	DIALOG_BOX,
+	INPUT_BOX,
+	INPUT_HEADING,
+	INPUT_TEXT,
+	INPUT_FIELD,
+	ATTR_MAX
+} attributes[ATTR_MAX+1];
+
+/* available colors:
+   COLOR_BLACK   0
+   COLOR_RED     1
+   COLOR_GREEN   2
+   COLOR_YELLOW  3
+   COLOR_BLUE    4
+   COLOR_MAGENTA 5
+   COLOR_CYAN    6
+   COLOR_WHITE   7
+   */
+static void set_normal_colors(void)
+{
+	init_pair(NORMAL, COLOR_RED, COLOR_BLACK);
+	init_pair(MAIN_HEADING, COLOR_MAGENTA, COLOR_BLACK);
+
+	/* FORE is for the selected item */
+	init_pair(MAIN_MENU_FORE, COLOR_CYAN, COLOR_BLACK);
+	/* BACK for all the rest */
+	init_pair(MAIN_MENU_BACK, COLOR_CYAN, COLOR_BLACK);
+	init_pair(MAIN_MENU_HEADING, COLOR_GREEN, COLOR_BLACK);
+	init_pair(MAIN_MENU_BOX, COLOR_YELLOW, COLOR_BLACK);
+
+	init_pair(INSTS_WIN_TEXT, COLOR_BLUE, COLOR_BLACK);
+	init_pair(INSTS_WIN_HEADING, COLOR_GREEN, COLOR_BLACK);
+	init_pair(INSTS_WIN_BOX, COLOR_YELLOW, COLOR_BLACK);
+
+	init_pair(SCROLLWIN_TEXT, COLOR_RED, COLOR_BLACK);
+	init_pair(SCROLLWIN_HEADING, COLOR_GREEN, COLOR_BLACK);
+	init_pair(SCROLLWIN_BOX, COLOR_YELLOW, COLOR_BLACK);
+
+	init_pair(BOTTOM_MENU_FORE, COLOR_YELLOW, COLOR_BLACK);
+	init_pair(BOTTOM_MENU_BACK, COLOR_WHITE, COLOR_BLACK);
+
+	init_pair(DIALOG_TEXT, COLOR_RED, COLOR_BLACK);
+	init_pair(DIALOG_BOX, COLOR_YELLOW, COLOR_BLACK);
+	init_pair(DIALOG_MENU_FORE, COLOR_MAGENTA, COLOR_BLACK);
+	init_pair(DIALOG_MENU_BACK, COLOR_WHITE, COLOR_BLACK);
+
+	init_pair(INPUT_BOX, COLOR_YELLOW, COLOR_BLACK);
+	init_pair(INPUT_HEADING, COLOR_GREEN, COLOR_BLACK);
+	init_pair(INPUT_TEXT, COLOR_RED, COLOR_BLACK);
+	init_pair(INPUT_FIELD, COLOR_BLUE, COLOR_BLACK);
+}
+
+/* available attributes:
+   A_NORMAL        Normal display (no highlight)
+   A_STANDOUT      Best highlighting mode of the terminal.
+   A_UNDERLINE     Underlining
+   A_REVERSE       Reverse video
+   A_BLINK         Blinking
+   A_DIM           Half bright
+   A_BOLD          Extra bright or bold
+   A_PROTECT       Protected mode
+   A_INVIS         Invisible or blank mode
+   A_ALTCHARSET    Alternate character set
+   A_CHARTEXT      Bit-mask to extract a character
+   COLOR_PAIR(n)   Color-pair number n
+   */
+static void normal_color_theme(void)
+{
+/* automatically add color... */
+#define mkattr(name, attr) { attributes[name] = attr | COLOR_PAIR(name); }
+
+	mkattr(NORMAL, NORMAL);
+	mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);
+
+	mkattr(MAIN_MENU_FORE, A_STANDOUT);
+	mkattr(MAIN_MENU_BACK, A_NORMAL);
+	mkattr(MAIN_MENU_HEADING, A_BOLD);
+	mkattr(MAIN_MENU_BOX, A_NORMAL);
+
+	mkattr(INSTS_WIN_TEXT, A_NORMAL);
+	mkattr(INSTS_WIN_HEADING, A_BOLD);
+	mkattr(INSTS_WIN_BOX, A_NORMAL);
+
+	mkattr(SCROLLWIN_TEXT, A_NORMAL);
+	mkattr(SCROLLWIN_HEADING, A_BOLD);
+	mkattr(SCROLLWIN_BOX, A_BOLD);
+
+	mkattr(BOTTOM_MENU_FORE, A_STANDOUT);
+	mkattr(BOTTOM_MENU_BACK, A_BOLD);
+
+	mkattr(DIALOG_TEXT, A_NORMAL);
+	mkattr(DIALOG_BOX, A_BOLD);
+	mkattr(DIALOG_MENU_FORE, A_STANDOUT);
+	mkattr(DIALOG_MENU_BACK, A_BOLD);
+
+	mkattr(INPUT_BOX, A_BOLD);
+	mkattr(INPUT_HEADING, A_BOLD);
+	mkattr(INPUT_TEXT, A_NORMAL);
+	mkattr(INPUT_FIELD, A_UNDERLINE);
+}
+
+
+static int get_line_no(const char *text)
+{
+	int i;
+	int total = 1;
+
+	if (!text)
+		return 0;
+
+	for (i = 0; text[i] != '\0'; i++)
+		if (text[i] == '\n')
+			total++;
+	return total;
+}
+
+const char *get_line(const char *text, int line_no)
+{
+	int i;
+	int lines = 0;
+
+	if (!text)
+		return 0;
+
+	for (i = 0; text[i] != '\0' && lines < line_no; i++)
+		if (text[i] == '\n')
+			lines++;
+	return text+i;
+}
+
+static void update_current_btn(void)
+{
+	int index = item_index(current_item(btns_menu));
+	switch (index) {
+	case 0:
+		current_btn = BTN_SELECT;
+		break;
+	case 1:
+		current_btn = BTN_EXIT;
+		break;
+	case 2:
+		current_btn = BTN_HELP;
+		break;
+	}
+}
+
+
+/* this changes the windows attributes !!! */
+static void print_in_middle(WINDOW *win,
+		int starty,
+		int startx,
+		int width,
+		const char *string,
+		chtype color)
+{	int length, x, y;
+	float temp;
+
+
+	if (win == NULL)
+		win = stdscr;
+	getyx(win, y, x);
+	if (startx != 0)
+		x = startx;
+	if (starty != 0)
+		y = starty;
+	if (width == 0)
+		width = 80;
+
+	length = strlen(string);
+	temp = (width - length) / 2;
+	x = startx + (int)temp;
+	wattrset(win, color);
+	mvwprintw(win, y, x, "%s", string);
+	refresh();
+}
+
+static void clean_items(void)
+{
+	int i;
+	for (i = 0; curses_menu_items[i]; i++)
+		free_item(curses_menu_items[i]);
+	bzero(curses_menu_items, sizeof(curses_menu_items));
+	bzero(k_menu_items, sizeof(k_menu_items));
+	items_num = 0;
+}
+
+void item_make(void *usrptr, char tag, const char *fmt, ...)
+{
+	va_list ap;
+
+	if (items_num > MAX_MENU_ITEMS-1)
+		return;
+
+	bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
+	k_menu_items[items_num].tag = tag;
+	k_menu_items[items_num].usrptr = usrptr;
+
+	va_start(ap, fmt);
+	vsnprintf(k_menu_items[items_num].str,
+		sizeof(k_menu_items[items_num].str),
+		fmt, ap);
+	va_end(ap);
+
+
+	curses_menu_items[items_num] = new_item(
+			k_menu_items[items_num].str,
+			k_menu_items[items_num].str);
+	set_item_userptr(curses_menu_items[items_num],
+			&k_menu_items[items_num]);
+	items_num++;
+	curses_menu_items[items_num] = NULL;
+}
+
+/* very hackish. adds a string to the last item added */
+void item_add_str(const char *fmt, ...)
+{
+	va_list ap;
+	size_t avail;
+	int index = items_num-1;
+	if (index < 0)
+		return;
+
+	avail = sizeof(k_menu_items[index].str) -
+		strlen(k_menu_items[index].str);
+
+	va_start(ap, fmt);
+	vsnprintf(k_menu_items[index].str +
+		  strlen(k_menu_items[index].str),
+		  avail, fmt, ap);
+	k_menu_items[index].str[sizeof(k_menu_items[index].str) - 1] = '\0';
+	free_item(curses_menu_items[index]);
+	curses_menu_items[index] = new_item(
+			k_menu_items[index].str,
+			k_menu_items[index].str);
+	set_item_userptr(curses_menu_items[index],
+			&k_menu_items[index]);
+	va_end(ap);
+}
+
+/* get the tag of the currently selected item */
+char item_tag(void)
+{
+	ITEM *cur;
+	struct mitem *mcur;
+
+	cur = current_item(curses_menu);
+	if (cur == NULL)
+		return 0;
+	mcur = (struct mitem *) item_userptr(cur);
+	return mcur->tag;
+}
+
+int curses_item_index(void)
+{
+	return	item_index(current_item(curses_menu));
+}
+
+void *item_data(void)
+{
+	ITEM *cur;
+	struct mitem *mcur;
+
+	cur = current_item(curses_menu);
+	mcur = (struct mitem *) item_userptr(cur);
+	return mcur->usrptr;
+
+}
+
+int item_is_tag(char tag)
+{
+	return item_tag() == tag;
+}
+
+int get_line_length(const char *line)
+{
+	int res = 0;
+	while (*line != '\0' && *line != '\n') {
+		line++;
+		res++;
+	}
+	return res;
+}
+
+/* get the message, and buttons.
+ * each button must be a char*
+ * return the selected button
+ *
+ * this dialog is used for 2 different things:
+ * 1) show a text box, no buttons.
+ * 2) show a dialog, with horizontal buttons
+ */
+static int btn_dialog(const char *msg, int btn_num, ...)
+{
+	va_list ap;
+	char *btn;
+	int btns_width = 0;
+	int msg_lines = 0;
+	int msg_width = 0;
+	int total_width;
+	int win_rows = 0;
+	WINDOW *win;
+	WINDOW *msg_win;
+	WINDOW *menu_win;
+	PANEL *panel;
+	MENU *menu;
+	ITEM *btns[btn_num+1];
+	int i, x, y;
+	int res = -1;
+
+
+	va_start(ap, btn_num);
+	for (i = 0; i < btn_num; i++) {
+		btn = va_arg(ap, char *);
+		btns[i] = new_item(btn, "");
+		btns_width += strlen(btn)+1;
+	}
+	va_end(ap);
+	btns[btn_num] = NULL;
+
+	/* find the widest line of msg: */
+	msg_lines = get_line_no(msg);
+	for (i = 0; i < msg_lines; i++) {
+		const char *line = get_line(msg, i);
+		int len = get_line_length(line);
+		if (msg_width < len)
+			msg_width = len;
+	}
+
+	total_width = max(msg_width, btns_width);
+	/* place dialog in middle of screen */
+	y = (LINES-(msg_lines+4))/2;
+	x = (COLS-(total_width+4))/2;
+
+
+	/* create the windows */
+	if (btn_num > 0)
+		win_rows = msg_lines+4;
+	else
+		win_rows = msg_lines+2;
+
+	win = newwin(win_rows, total_width+4, y, x);
+	keypad(win, TRUE);
+	menu_win = derwin(win, 1, btns_width, win_rows-2,
+			1+(total_width+2-btns_width)/2);
+	menu = new_menu(btns);
+	msg_win = derwin(win, win_rows-2, msg_width, 1,
+			1+(total_width+2-msg_width)/2);
+
+	set_menu_fore(menu, attributes[DIALOG_MENU_FORE]);
+	set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
+
+	wattrset(win, attributes[DIALOG_BOX]);
+	box(win, 0, 0);
+
+	/* print message */
+	wattrset(msg_win, attributes[DIALOG_TEXT]);
+	for (i = 0; i < msg_lines; i++) {
+		char tmp[total_width+1];
+		const char *line = get_line(msg, i);
+
+		strncpy(tmp, line, get_line_length(line));
+		tmp[get_line_length(line)] = '\0';
+		mvwprintw(msg_win, i, 0, "%s", tmp);
+	}
+
+	set_menu_win(menu, win);
+	set_menu_sub(menu, menu_win);
+	set_menu_format(menu, 1, btn_num);
+	menu_opts_off(menu, O_SHOWDESC);
+	menu_opts_on(menu, O_SHOWMATCH);
+	menu_opts_on(menu, O_ONEVALUE);
+	menu_opts_on(menu, O_NONCYCLIC);
+	set_menu_mark(menu, "");
+	post_menu(menu);
+
+
+	/* create panels */
+	panel = new_panel(win);
+
+	touchwin(win);
+	refresh_all_windows();
+	while ((res = wgetch(win))) {
+		switch (res) {
+		case KEY_LEFT:
+			menu_driver(menu, REQ_LEFT_ITEM);
+			break;
+		case KEY_RIGHT:
+			menu_driver(menu, REQ_RIGHT_ITEM);
+			break;
+		case 10: /* ENTER */
+			break;
+		case 27: /* ESCAPE */
+			break;
+		}
+		touchwin(win);
+		refresh_all_windows();
+
+		if (res == 10) {
+			res = item_index(current_item(menu));
+			break;
+		} else if (res == 27) {
+			res = -1;
+			break;
+		}
+	}
+
+	unpost_menu(menu);
+	free_menu(menu);
+	for (i = 0; i < btn_num; i++)
+		free_item(btns[i]);
+
+	del_panel(panel);
+	delwin(win);
+	return res;
+}
+
+static int dialog_inputbox(const char *title, const char *prompt,
+		const char *init, char *result, int result_len)
+{
+	int prompt_lines = 0;
+	int prompt_width = 0;
+	WINDOW *win;
+	WINDOW *prompt_win;
+	WINDOW *form_win;
+	PANEL *panel;
+	FORM *form;
+	FIELD * fields[2];
+	int i, x, y;
+	int res = -1;
+
+
+	/* find the widest line of msg: */
+	prompt_lines = get_line_no(prompt);
+	for (i = 0; i < prompt_lines; i++) {
+		const char *line = get_line(prompt, i);
+		int len = get_line_length(line);
+		prompt_width = max(prompt_width, len);
+	}
+
+	if (title)
+		prompt_width = max(prompt_width, strlen(title));
+
+	/* place dialog in middle of screen */
+	y = (LINES-(prompt_lines+4))/2;
+	x = (COLS-(prompt_width+4))/2;
+
+	fields[0] = new_field(1, prompt_width, 0, 0, 0, 1);
+	field_opts_off(fields[0], O_AUTOSKIP);
+	strncpy(result, init, result_len);
+	set_field_buffer(fields[0], 0, result);
+	set_field_back(fields[0], attributes[INPUT_FIELD]);
+	fields[1] = NULL;
+	form = new_form(fields);
+
+	/* create the windows */
+	win = newwin(prompt_lines+5, prompt_width+4, y, x);
+	keypad(win, TRUE);
+	prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2);
+	form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2);
+	set_form_win(form, win);
+	set_form_sub(form, form_win);
+
+
+	wattrset(win, attributes[INPUT_BOX]);
+	box(win, 0, 0);
+	wattrset(win, attributes[INPUT_HEADING]);
+	if (title)
+		mvwprintw(win, 0, 3, "%s", title);
+
+	/* print message */
+	wattrset(prompt_win, attributes[INPUT_TEXT]);
+	for (i = 0; i < prompt_lines; i++) {
+		char tmp[prompt_width+1];
+		const char *line = get_line(prompt, i);
+
+		strncpy(tmp, line, get_line_length(line));
+		tmp[get_line_length(line)] = '\0';
+		mvwprintw(prompt_win, i, 0, "%s", tmp);
+	}
+
+
+	post_form(form);
+	/* create panels */
+	panel = new_panel(win);
+
+	touchwin(win);
+	refresh_all_windows();
+	while ((res = wgetch(form_win))) {
+		int len;
+		switch (res) {
+		case 10: /* ENTER */
+			break;
+		case 27: /* ESCAPE */
+			break;
+		case '?':
+			break;
+		case 127:
+		case KEY_DL:
+		case KEY_BACKSPACE:
+			len = strlen(result);
+			if (len > 0) {
+				result[len-1] = '\0';
+				set_field_buffer(fields[0], 0, result);
+			}
+			break;
+		default:
+			len = strlen(result);
+			if ((isgraph(res) || isspace(res)) &&
+			    len-1 < result_len) {
+				result[len] = res;
+				result[len+1] = '\0';
+				set_field_buffer(fields[0], 0, result);
+			}
+			break;
+		}
+		touchwin(win);
+		refresh_all_windows();
+
+		if (res == 10) {
+			res = 0;
+			break;
+		} else if (res == 27) {
+			res = KEY_EXIT;
+			break;
+		} else if (res == '?') {
+			res = 1;
+			break;
+		}
+	}
+
+	unpost_form(form);
+	free_form(form);
+	free_field(fields[0]);
+	del_panel(panel);
+	delwin(win);
+	return res;
+}
+
+static void get_prompt_str(struct gstr *r, struct property *prop)
+{
+	int i, j;
+	struct menu *submenu[8], *menu;
+
+	str_printf(r, _("Prompt: %s\n"), _(prop->text));
+	str_printf(r, _("  Defined at %s:%d\n"), prop->menu->file->name,
+		prop->menu->lineno);
+	if (!expr_is_yes(prop->visible.expr)) {
+		str_append(r, _("  Depends on: "));
+		expr_gstr_print(prop->visible.expr, r);
+		str_append(r, "\n");
+	}
+	menu = prop->menu->parent;
+	for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
+		submenu[i++] = menu;
+	if (i > 0) {
+		str_printf(r, _("  Location:\n"));
+		for (j = 4; --i >= 0; j += 2) {
+			menu = submenu[i];
+			str_printf(r, "%*c-> %s", j, ' ',
+					_(menu_get_prompt(menu)));
+			if (menu->sym) {
+				str_printf(r, " (%s [ = %s])", menu->sym->name ?
+					menu->sym->name : _("<choice>"),
+					sym_get_string_value(menu->sym));
+			}
+			str_append(r, "\n");
+		}
+	}
+}
+
+static void get_symbol_str(struct gstr *r, struct symbol *sym)
+{
+	bool hit;
+	struct property *prop;
+
+	if (sym && sym->name)
+		str_printf(r, "Symbol: %s [ = %s]\n", sym->name,
+				sym_get_string_value(sym));
+	for_all_prompts(sym, prop)
+		get_prompt_str(r, prop);
+	hit = false;
+	for_all_properties(sym, prop, P_SELECT) {
+		if (!hit) {
+			str_append(r, "  Selects: ");
+			hit = true;
+		} else
+			str_printf(r, " && ");
+		expr_gstr_print(prop->expr, r);
+	}
+	if (hit)
+		str_append(r, "\n");
+	if (sym->rev_dep.expr) {
+		str_append(r, _("  Selected by: "));
+		expr_gstr_print(sym->rev_dep.expr, r);
+		str_append(r, "\n");
+	}
+	str_append(r, "\n\n");
+}
+
+static struct gstr get_relations_str(struct symbol **sym_arr)
+{
+	struct symbol *sym;
+	struct gstr res = str_new();
+	int i;
+
+	for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
+		get_symbol_str(&res, sym);
+	if (!i)
+		str_append(&res, _("No matches found.\n"));
+	return res;
+}
+
+static char filename[PATH_MAX+1];
+const char *set_config_filename(const char *config_filename)
+{
+	static char menu_backtitle[PATH_MAX+128];
+	int size;
+	struct symbol *sym;
+
+	sym = sym_lookup("KERNELVERSION", 0);
+	sym_calc_value(sym);
+	size = snprintf(menu_backtitle, sizeof(menu_backtitle),
+			_("%s - Linux Kernel v%s Configuration"),
+			config_filename, sym_get_string_value(sym));
+	if (size >= sizeof(menu_backtitle))
+		menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
+
+	size = snprintf(filename, sizeof(filename), "%s", config_filename);
+	if (size >= sizeof(filename))
+		filename[sizeof(filename)-1] = '\0';
+	return menu_backtitle;
+}
+
+
+static void search_conf(void)
+{
+	struct symbol **sym_arr;
+	struct gstr res;
+	char dialog_input_result[100];
+	char *dialog_input;
+	int dres;
+again:
+	wclear(menu_window);
+	dres = dialog_inputbox(_("Search Configuration Parameter"),
+			      _("Enter CONFIG_ (sub)string to search for "
+				"(with or without \"CONFIG\")"),
+			      "", dialog_input_result, 99);
+	switch (dres) {
+	case 0:
+		break;
+	case 1:
+		show_scroll_win(_("Search Configuration"), search_help);
+		goto again;
+	default:
+		return;
+	}
+
+	/* strip CONFIG_ if necessary */
+	dialog_input = dialog_input_result;
+	if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
+		dialog_input += 7;
+
+	sym_arr = sym_re_search(dialog_input);
+	res = get_relations_str(sym_arr);
+	free(sym_arr);
+	show_scroll_win(_("Search Results"), str_get(&res));
+	str_free(&res);
+}
+
+
+static void build_conf(struct menu *menu)
+{
+	struct symbol *sym;
+	struct property *prop;
+	struct menu *child;
+	int type, tmp, doint = 2;
+	tristate val;
+	char ch;
+
+
+	if (!menu_is_visible(menu))
+		return;
+
+	sym = menu->sym;
+	prop = menu->prompt;
+	if (!sym) {
+		if (prop && menu != current_menu) {
+			const char *prompt = menu_get_prompt(menu);
+			switch (prop->type) {
+			case P_MENU:
+				child_count++;
+				prompt = _(prompt);
+				if (single_menu_mode) {
+					item_make(menu, 'm',
+						"%s%*c%s",
+						menu->data ? "-->" : "++>",
+						indent + 1, ' ', prompt);
+				} else
+					item_make(menu, 'm',
+							"   %*c%s  --->",
+							indent + 1,
+							' ', prompt);
+
+				if (single_menu_mode && menu->data)
+					goto conf_childs;
+				return;
+			case P_COMMENT:
+				if (prompt) {
+					child_count++;
+					item_make(menu, ':',
+							"   %*c*** %s ***",
+							indent + 1, ' ',
+							_(prompt));
+				}
+				break;
+			default:
+				if (prompt) {
+					child_count++;
+					item_make(menu, ':', "---%*c%s",
+							indent + 1, ' ',
+							_(prompt));
+				}
+			}
+		} else
+			doint = 0;
+		goto conf_childs;
+	}
+
+	type = sym_get_type(sym);
+	if (sym_is_choice(sym)) {
+		struct symbol *def_sym = sym_get_choice_value(sym);
+		struct menu *def_menu = NULL;
+
+		child_count++;
+		for (child = menu->list; child; child = child->next) {
+			if (menu_is_visible(child) && child->sym == def_sym)
+				def_menu = child;
+		}
+
+		val = sym_get_tristate_value(sym);
+		if (sym_is_changable(sym)) {
+			switch (type) {
+			case S_BOOLEAN:
+				item_make(menu, 't', "[%c]",
+						val == no ? ' ' : '*');
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes:
+					ch = '*';
+					break;
+				case mod:
+					ch = 'M';
+					break;
+				default:
+					ch = ' ';
+					break;
+				}
+				item_make(menu, 't', "<%c>", ch);
+				break;
+			}
+		} else {
+			item_make(menu, def_menu ? 't' : ':', "   ");
+		}
+
+		item_add_str("%*c%s", indent + 1,
+				' ', _(menu_get_prompt(menu)));
+		if (val == yes) {
+			if (def_menu) {
+				item_add_str(" (%s)",
+					_(menu_get_prompt(def_menu)));
+				item_add_str("  --->");
+				if (def_menu->list) {
+					indent += 2;
+					build_conf(def_menu);
+					indent -= 2;
+				}
+			}
+			return;
+		}
+	} else {
+		if (menu == current_menu) {
+			item_make(menu, ':',
+				"---%*c%s", indent + 1,
+				' ', _(menu_get_prompt(menu)));
+			goto conf_childs;
+		}
+		child_count++;
+		val = sym_get_tristate_value(sym);
+		if (sym_is_choice_value(sym) && val == yes) {
+			item_make(menu, ':', "   ");
+		} else {
+			switch (type) {
+			case S_BOOLEAN:
+				if (sym_is_changable(sym))
+					item_make(menu, 't', "[%c]",
+						val == no ? ' ' : '*');
+				else
+					item_make(menu, 't', "-%c-",
+						val == no ? ' ' : '*');
+				break;
+			case S_TRISTATE:
+				switch (val) {
+				case yes:
+					ch = '*';
+					break;
+				case mod:
+					ch = 'M';
+					break;
+				default:
+					ch = ' ';
+					break;
+				}
+				if (sym_is_changable(sym)) {
+					if (sym->rev_dep.tri == mod)
+						item_make(menu,
+							't', "{%c}", ch);
+					else
+						item_make(menu,
+							't', "<%c>", ch);
+				} else
+					item_make(menu, 't', "-%c-", ch);
+				break;
+			default:
+				tmp = 2 + strlen(sym_get_string_value(sym));
+				item_make(menu, 's', "(%s)",
+					sym_get_string_value(sym));
+				tmp = indent - tmp + 4;
+				if (tmp < 0)
+					tmp = 0;
+				item_add_str("%*c%s%s", tmp, ' ',
+					_(menu_get_prompt(menu)),
+					(sym_has_value(sym) ||
+					 !sym_is_changable(sym)) ? "" :
+					   _(" (NEW)"));
+				goto conf_childs;
+			}
+		}
+		item_add_str("%*c%s%s", indent + 1, ' ',
+			_(menu_get_prompt(menu)),
+			(sym_has_value(sym) || !sym_is_changable(sym)) ?
+			  "" : _(" (NEW)"));
+		if (menu->prompt->type == P_MENU) {
+			item_add_str("  --->");
+			return;
+		}
+	}
+
+conf_childs:
+	indent += doint;
+	for (child = menu->list; child; child = child->next)
+		build_conf(child);
+	indent -= doint;
+}
+
+static void reset_menu(void)
+{
+	unpost_menu(curses_menu);
+	unpost_menu(btns_menu);
+	clean_items();
+}
+
+/* refresh all windows in the correct order */
+static void refresh_all_windows(void)
+{
+	update_panels();
+	doupdate();
+	refresh();
+}
+
+/* this function assumes reset_menu has been called before */
+static void show_menu(const char *prompt, const char *instructions,
+		int selected_index, int toprow)
+{
+	wclear(menu_window);
+	wclear(main_window);
+	wclear(insts_window);
+	wclear(btns_window);
+
+	wattrset(main_window, attributes[MAIN_MENU_BOX]);
+	box(main_window, 0, 0);
+	wattrset(main_window, attributes[MAIN_MENU_HEADING]);
+	mvwprintw(main_window, 0, 3, " %s ", prompt);
+
+	wattrset(insts_window, attributes[INSTS_WIN_TEXT]);
+	mvwprintw(insts_window, 1, 0, "%s", instructions);
+	wattrset(insts_window, attributes[INSTS_WIN_BOX]);
+	box(insts_window, 0, 0);
+	wattrset(insts_window, attributes[INSTS_WIN_HEADING]);
+	mvwprintw(insts_window, 0, 10, " Instructions ");
+
+	set_menu_items(curses_menu, curses_menu_items);
+	/* must reassert this after changing items, otherwise returns to a
+	 * default of 16
+	 */
+	set_menu_format(curses_menu, LINES-20, 1);
+	set_top_row(curses_menu, toprow);
+	set_current_item(curses_menu, curses_menu_items[selected_index]);
+
+	/* move lower menu btn to <select> */
+	set_current_item(btns_menu, btns_items[BTN_SELECT]);
+
+	/* Post the menu */
+	post_menu(curses_menu);
+	post_menu(btns_menu);
+	refresh_all_windows();
+}
+
+
+static void conf(struct menu *menu)
+{
+	struct menu *submenu;
+	const char *prompt = menu_get_prompt(menu);
+	struct symbol *sym;
+	struct menu *active_menu = NULL;
+	int res;
+	int current_index = 0;
+	int toprow = 0;
+
+	while (1) {
+		reset_menu();
+		current_menu = menu;
+		build_conf(menu);
+		if (!child_count)
+			break;
+
+		if (menu == &rootmenu) {
+			item_make(NULL, 0, "--- ");
+			item_make(NULL, 'L',
+				_("    Load an Alternate Configuration File"));
+			item_make(NULL, 'S',
+				_("    Save an Alternate Configuration File"));
+		}
+
+		show_menu(prompt ? _(prompt) : _("Main Menu"),
+				_(menu_instructions),
+				current_index,
+				toprow);
+		while ((res = wgetch(menu_window))) {
+			switch (res) {
+			case KEY_DOWN:
+				menu_driver(curses_menu, REQ_DOWN_ITEM);
+				break;
+			case KEY_UP:
+				menu_driver(curses_menu, REQ_UP_ITEM);
+				break;
+			case KEY_LEFT:
+				menu_driver(btns_menu, REQ_LEFT_ITEM);
+				break;
+			case KEY_RIGHT:
+				menu_driver(btns_menu, REQ_RIGHT_ITEM);
+				break;
+			case KEY_NPAGE:
+				menu_driver(curses_menu, REQ_SCR_DPAGE);
+				break;
+			case KEY_PPAGE:
+				menu_driver(curses_menu, REQ_SCR_UPAGE);
+				break;
+			}
+			refresh_all_windows();
+			if (res == 10 || res == 27 ||  res == 'h' ||
+			    res == 32 || res == 'n' || res == 'y' ||
+			    res == 'm' || res == '/' || res == '?')
+				break;
+		}
+
+		/* update selected btn */
+		update_current_btn();
+		refresh_all_windows();
+
+		/* if ESC or btn_exit */
+		if (res == 27 || (res == 10 && current_btn == BTN_EXIT))
+			break;
+
+		/* remember location in the menu */
+		current_index = curses_item_index();
+		toprow = top_row(curses_menu);
+
+		if (!item_tag())
+			continue;
+
+		submenu = (struct menu *) item_data();
+		active_menu = (struct menu *)item_data();
+		if (submenu)
+			sym = submenu->sym;
+		else
+			sym = NULL;
+
+		/* check for btn help!! */
+		if (res == 10 && current_btn == BTN_HELP) {
+			if (sym)
+				show_help(submenu);
+			else
+				show_scroll_win(_("README"), _(mconf_readme));
+			continue;
+		}
+		switch (res) {
+		case 10: /* ENTER WAS PRESSED */
+			switch (item_tag()) {
+			case 'm':
+				if (single_menu_mode)
+					submenu->data =
+						(void *) (long) !submenu->data;
+				else
+					conf(submenu);
+				break;
+			case 't':
+				if (sym_is_choice(sym) &&
+					sym_get_tristate_value(sym) == yes)
+						conf_choice(submenu);
+				else if (submenu->prompt->type == P_MENU)
+					conf(submenu);
+				break;
+			case 's':
+				conf_string(submenu);
+				break;
+			case 'L':
+				conf_load();
+				break;
+			case 'S':
+				conf_save();
+				break;
+			}
+			break;
+		case 'h':
+		case '?':
+			if (sym)
+				show_help(submenu);
+			else
+				show_scroll_win(_("README"), _(mconf_readme));
+			break;
+		case 'y':
+			if (item_is_tag('t')) {
+				if (sym_set_tristate_value(sym, yes))
+					break;
+				if (sym_set_tristate_value(sym, mod))
+					btn_dialog(setmod_text, 0);
+			}
+			break;
+		case 'n':
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, no);
+			break;
+		case 'm':
+			if (item_is_tag('t'))
+				sym_set_tristate_value(sym, mod);
+			break;
+		case ' ':
+			if (item_is_tag('t'))
+				sym_toggle_tristate_value(sym);
+			else if (item_is_tag('m'))
+				conf(submenu);
+			break;
+		case '/':
+			search_conf();
+			break;
+		}
+	}
+}
+
+/* layman's scrollble window... */
+static void show_scroll_win(const char *title, const char *text)
+{
+	int res;
+	int total_lines = get_line_no(text);
+	int position = 0;
+	int x, y;
+	int cols = 0;
+	int lines = 0;
+	int i = 0;
+	WINDOW *win;
+	WINDOW *text_win;
+	PANEL *panel;
+
+	/* find the widest line of msg: */
+	total_lines = get_line_no(text);
+	for (i = 0; i < total_lines; i++) {
+		const char *line = get_line(text, i);
+		int len = get_line_length(line);
+		cols = max(cols, len);
+	}
+
+	lines = min(total_lines, LINES-10);
+
+	/* place window in middle of screen */
+	y = (LINES-lines-4)/2;
+	x = (COLS-cols-4)/2;
+
+	win = newwin(lines+4, cols+4, y, x);
+	text_win = derwin(win, lines, cols, 2, 2);
+	idlok(text_win, TRUE);
+	wsetscrreg(text_win, 0, lines);
+	keypad(win, TRUE);
+	/* show the help in the help window, and show the help panel */
+	wattrset(win, attributes[SCROLLWIN_BOX]);
+	box(win, 0, 0);
+	wattrset(win, attributes[SCROLLWIN_HEADING]);
+	mvwprintw(win, 0, 3, " %s ", title);
+	wattrset(text_win, attributes[SCROLLWIN_TEXT]);
+	panel = new_panel(win);
+
+	/* handle scrolling */
+	do {
+		for (i = 0; i < lines && i+position < total_lines; i++) {
+			char tmp[cols+1];
+			const char *line = get_line(text, i+position);
+
+			strncpy(tmp, line, get_line_length(line));
+			tmp[get_line_length(line)] = '\0';
+			mvwprintw(text_win, i, 0, "%s", tmp);
+			wclrtoeol(text_win);
+		}
+
+		touchwin(win);
+		wrefresh(win);
+
+		res = wgetch(win);
+		switch (res) {
+		case KEY_NPAGE:
+		case ' ':
+			position += cols-2;
+			break;
+		case KEY_PPAGE:
+			position -= cols+2;
+			break;
+		case KEY_DOWN:
+			position++;
+			break;
+		case KEY_UP:
+			position--;
+			break;
+		}
+		if (res == 10 || res == 27)
+			break;
+		if (position < 0)
+			position = 0;
+		if (position >= total_lines-lines)
+			position = total_lines-lines;
+	} while (res);
+
+	del_panel(panel);
+	delwin(win);
+	refresh_all_windows();
+}
+
+static void show_help(struct menu *menu)
+{
+	struct gstr help = str_new();
+	struct symbol *sym = menu->sym;
+
+	if (menu_has_help(menu)) {
+		if (sym->name) {
+			str_printf(&help, "CONFIG_%s:\n\n", sym->name);
+			str_append(&help, _(menu_get_help(menu)));
+			str_append(&help, "\n");
+		}
+	} else {
+		str_append(&help, nohelp_text);
+	}
+	get_symbol_str(&help, sym);
+	show_scroll_win(_(menu_get_prompt(menu)), str_get(&help));
+	str_free(&help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+	const char *prompt = _(menu_get_prompt(menu));
+	struct menu *child;
+	struct symbol *active;
+	int selected_index = 0;
+	int toprow = 0;
+	int res, i = 0;
+
+	active = sym_get_choice_value(menu->sym);
+	/* this is mostly duplicated from the conf() function.
+	 * maybe refactor??
+	 */
+	while (1) {
+		reset_menu();
+
+		for (i = 0, child = menu->list; child; child = child->next) {
+			if (!menu_is_visible(child))
+				continue;
+
+			if (child->sym == sym_get_choice_value(menu->sym))
+				item_make(child, ':', "(X) %s",
+					_(menu_get_prompt(child)));
+			else
+				item_make(child, ':', "    %s",
+					_(menu_get_prompt(child)));
+			if (child->sym == active) {
+				selected_index = i;
+				toprow = top_row(curses_menu);
+			}
+			i++;
+		}
+		show_menu(prompt ? _(prompt) : _("Choice Menu"),
+				_(radiolist_instructions),
+				selected_index,
+				toprow);
+		while ((res = wgetch(menu_window))) {
+			switch (res) {
+			case KEY_DOWN:
+				menu_driver(curses_menu, REQ_DOWN_ITEM);
+				break;
+			case KEY_UP:
+				menu_driver(curses_menu, REQ_UP_ITEM);
+				break;
+			case KEY_LEFT:
+				menu_driver(btns_menu, REQ_LEFT_ITEM);
+				break;
+			case KEY_RIGHT:
+				menu_driver(btns_menu, REQ_RIGHT_ITEM);
+				break;
+			case KEY_NPAGE:
+				menu_driver(curses_menu, REQ_SCR_DPAGE);
+				break;
+			case KEY_PPAGE:
+				menu_driver(curses_menu, REQ_SCR_UPAGE);
+				break;
+			}
+			refresh_all_windows();
+			if (res == 10 || res == 27 ||
+			    res == 'h' || res == ' ' ||
+					res == '?')
+				break;
+		}
+		/* update selected btn */
+		update_current_btn();
+
+		/* if ESC or btn_exit */
+		if (res == 27 || (res == 10 && current_btn == BTN_EXIT))
+			return;
+
+		child = item_data();
+		/* check for btn help!! */
+		if (res == 10 && current_btn == BTN_HELP) {
+			show_help(child);
+			continue;
+		}
+
+		switch (res) {
+		case ' ':
+		case  10:
+			sym_set_tristate_value(child->sym, yes);
+			return;
+		case 'h':
+		case '?':
+			show_help(child);
+			active = child->sym;
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_string(struct menu *menu)
+{
+	const char *prompt = menu_get_prompt(menu);
+	char dialog_input_result[256];
+
+	while (1) {
+		int res;
+		const char *heading;
+
+		switch (sym_get_type(menu->sym)) {
+		case S_INT:
+			heading = _(inputbox_instructions_int);
+			break;
+		case S_HEX:
+			heading = _(inputbox_instructions_hex);
+			break;
+		case S_STRING:
+			heading = _(inputbox_instructions_string);
+			break;
+		default:
+			heading = _("Internal mconf error!");
+		}
+		res = dialog_inputbox(prompt ? _(prompt) : _("Main Menu"),
+				      heading,
+				      sym_get_string_value(menu->sym),
+				      dialog_input_result,
+				      sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (sym_set_string_value(menu->sym,
+				dialog_input_result))
+					return;
+			btn_dialog(_("You have made an invalid entry."), 0);
+			break;
+		case 1:
+			show_help(menu);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_load(void)
+{
+	char dialog_input_result[256];
+	while (1) {
+		int res;
+		res = dialog_inputbox(NULL, load_config_text,
+				      filename,
+				      dialog_input_result,
+				      sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			if (!conf_read(dialog_input_result)) {
+				set_config_filename(dialog_input_result);
+				sym_set_change_count(1);
+				return;
+			}
+			btn_dialog(_("File does not exist!"), 0);
+			break;
+		case 1:
+			show_scroll_win(_("Load Alternate Configuration"),
+				load_config_help);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+static void conf_save(void)
+{
+	char dialog_input_result[256];
+	while (1) {
+		int res;
+		res = dialog_inputbox(NULL, save_config_text,
+				      filename,
+				      dialog_input_result,
+				      sizeof(dialog_input_result));
+		switch (res) {
+		case 0:
+			if (!dialog_input_result[0])
+				return;
+			if (!conf_write(dialog_input_result)) {
+				set_config_filename(dialog_input_result);
+				return;
+			}
+			btn_dialog(_("Can't create file! "
+				"Probably a nonexistent directory."), 0);
+			break;
+		case 1:
+			show_scroll_win(_("Save Alternate Configuration"),
+				save_config_help);
+			break;
+		case KEY_EXIT:
+			return;
+		}
+	}
+}
+
+int main(int ac, char **av)
+{
+	char *mode;
+	const char *title;
+	int res;
+	int i;
+
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+
+	conf_parse(av[1]);
+	conf_read(NULL);
+
+	mode = getenv("MENUCONFIG_MODE");
+	if (mode) {
+		if (!strcasecmp(mode, "single_menu"))
+			single_menu_mode = 1;
+	}
+
+	/* Initialize curses */
+	initscr();
+	start_color();
+	cbreak();
+	noecho();
+	raw();
+	keypad(stdscr, TRUE);
+	clear();
+
+	if (COLS < 60 || LINES < 25) {
+		endwin();
+		printf("Your terminal should have at "
+			"least 25 lines and 60 columns");
+		return 1;
+	}
+
+	/* set color theme */
+	set_normal_colors();
+	normal_color_theme();
+
+	notimeout(stdscr, TRUE);
+	/* notimeout does not seem to work!! */
+	ESCDELAY = 0;
+
+	title = set_config_filename(conf_get_configname());
+	print_in_middle(stdscr, 1, 0, COLS, title, attributes[MAIN_HEADING]);
+
+	/* set up the menu and menu windows */
+	main_window = newwin(LINES-10, COLS-4, 10, 2);
+	keypad(main_window, TRUE);
+	insts_window = newwin(7, COLS-4, 2, 2);
+	menu_window = newwin(LINES-20, COLS-30, 12, (COLS-(COLS-20))/2+10);
+	keypad(menu_window, TRUE);
+	btns_window = newwin(1, 30,  LINES-3, (COLS-30)/2);
+
+	/* panels order is from bottom to top */
+	new_panel(main_window);
+	new_panel(insts_window);
+	new_panel(btns_window);
+	new_panel(menu_window);
+
+	/* Set main window */
+	curses_menu = new_menu(curses_menu_items);
+	set_menu_win(curses_menu, menu_window);
+	set_menu_sub(curses_menu, menu_window);
+	set_menu_format(curses_menu, LINES-20, 1);
+	menu_opts_off(curses_menu, O_SHOWDESC);
+	menu_opts_on(curses_menu, O_SHOWMATCH);
+	menu_opts_on(curses_menu, O_ONEVALUE);
+	menu_opts_on(curses_menu, O_NONCYCLIC);
+	set_menu_mark(curses_menu, " ");
+	set_menu_fore(curses_menu, attributes[MAIN_MENU_FORE]);
+	set_menu_back(curses_menu, attributes[MAIN_MENU_BACK]);
+
+	/* set btns menu */
+	for (i = 0; i < 3; i++)
+		btns_items[i] = new_item(btns[i], "");
+	btns_items[3] = NULL;
+	btns_menu = new_menu(btns_items);
+	set_menu_win(btns_menu, btns_window);
+	set_menu_sub(btns_menu, btns_window);
+	set_menu_format(btns_menu, 1, 3);
+	menu_opts_off(btns_menu, O_SHOWDESC);
+	menu_opts_on(btns_menu, O_SHOWMATCH);
+	menu_opts_on(btns_menu, O_ONEVALUE);
+	menu_opts_on(btns_menu, O_NONCYCLIC);
+	set_menu_mark(btns_menu, "");
+	set_menu_fore(btns_menu, attributes[BOTTOM_MENU_FORE]);
+	set_menu_back(btns_menu, attributes[BOTTOM_MENU_BACK]);
+
+	do {
+		conf(&rootmenu);
+		clear();
+		if (conf_get_changed())
+			res = btn_dialog(_("Do you wish to save your "
+					     "new kernel configuration?\n"
+					     "<ESC><ESC> to continue."),
+					2,
+					"   <save>   ",
+					"<don't save>");
+		else
+			res = -1;
+	} while (res == KEY_EXIT);
+	unpost_menu(curses_menu);
+	unpost_menu(btns_menu);
+	free_menu(curses_menu);
+	free_menu(btns_menu);
+	delwin(main_window);
+	delwin(menu_window);
+	delwin(insts_window);
+	endwin();
+
+
+	switch (res) {
+	case 0:
+		if (conf_write(filename)) {
+			fprintf(stderr, _("\n\n"
+			"Error during writing of the kernel configuration.\n"
+			"Your kernel configuration changes were NOT saved."
+			"\n\n"));
+			return 1;
+		}
+	case -1:
+		printf(_("\n\n"
+		"*** End of Linux kernel configuration.\n"
+		"*** Execute 'make' to build the kernel or try 'make help'."
+		"\n\n"));
+		break;
+	default:
+		fprintf(stderr, _("\n\n"
+			"Your kernel configuration changes were NOT saved."
+			"\n\n"));
+	}
+
+	return 0;
+}
+
-- 
1.5.6.4


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