[PATCH 0/3] Link lxdialog with mconf directly

[PATCH 0/3] Link lxdialog with mconf directly

[Petr Baudis]

  The following series revives one three years old patch, turning lxdialog
to a library and linking it directly to mconf, making menuconfig nicer and
things in general quite simpler and cleaner.

  The first two patches make slight adjustements to kbuild in order to make
liblxdialog possible. The third patch does the libification itself and
appropriate modifications to mconf.c.

  PS: Sorry for the blank covermail I've sent before. StGIT still seems
to behave, er.. erratically.

				Petr Baudis

-- 
And on the eigth day, God started debugging.

[PATCH 1/3] [kbuild] Allow building of standalone .so libraries

[Petr Baudis]

This patch allows specifying .so libraries directly in 'hostprogs-y'.
I need to create a .so library not linked to anything in the
scripts/lxdialog/ directory.

Signed-off-by: Petr Baudis <pasky@suse.cz>
---

 scripts/Makefile.host |   14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 2d51970..ff1b54d 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -29,6 +29,12 @@
 # conf.c is compiled as a c program, and conf.o is linked together with
 # libkconfig.so as the executable conf.
 # Note: Shared libraries consisting of C++ files are not supported
+#
+# hostprogs-y := liblxdialog.so
+# liblxdialog-objs := checklist.o util.o
+# Will create a "standalone" liblxdialog.so library in the directory,
+# not linked against anything (useful when you want to link something
+# to it later).
 
 __hostprogs := $(sort $(hostprogs-y)$(hostprogs-m))
 
@@ -39,7 +45,7 @@ obj-dirs := $(strip $(sort $(filter-out 
 
 # C code
 # Executables compiled from a single .c file
-host-csingle	:= $(foreach m,$(__hostprogs),$(if $($(m)-objs),,$(m)))
+host-csingle	:= $(foreach m,$(__hostprogs),$(if $($(m:.so=)-objs),,$(m)))
 
 # C executables linked based on several .o files
 host-cmulti	:= $(foreach m,$(__hostprogs),\
@@ -57,8 +63,10 @@ host-cxxmulti	:= $(foreach m,$(__hostpro
 host-cxxobjs	:= $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
 
 # Shared libaries (only .c supported)
-# Shared libraries (.so) - all .so files referenced in "xxx-objs"
-host-cshlib	:= $(sort $(filter %.so, $(host-cobjs)))
+# Shared libraries (.so) - all .so files referenced in "xxx-objs", and
+# also standalone .so's referenced in hostprogs.
+host-cshlib	:= $(sort $(filter %.so, $(host-cobjs))) \
+		   $(sort $(filter %.so, $(__hostprogs)))
 # Remove .so files from "xxx-objs"
 host-cobjs	:= $(filter-out %.so,$(host-cobjs))
 

[PATCH 2/3] [kbuild] Possibility to sanely link against off-directory .so

[Petr Baudis]

This patch introduces two special variables which make it actually possible
to link something against .so being built in another directory. The
variable $(<foo>-linkobjs) allows the user to specify additional objects
to link <foo> against, while not creating any dependencies of <foo> on the
objects.

I need this in order to link scripts/lxdialog/liblxdialog.so from
scripts/kconfig (I'll be able to build that lib thanks to the previous
patch and the actual change to make it a library will follow in the next
patch).

On 6 Nov 2002 Sam Ravnborg <sam@ravnborg.org> disputed this approach,
saying that such an extra complexity will bog the whole kernel build, but
this involves only the host tools build and there I think the extra penalty
is negligible. Also, .so has two users instead of a single one now, so it's
not that easy to use his suggested approach to offload the functionality to
the leaf makefiles.

Signed-off-by: Petr Baudis <pasky@suse.cz>
---

 scripts/Makefile.host |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index ff1b54d..1161f4c 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -34,7 +34,12 @@
 # liblxdialog-objs := checklist.o util.o
 # Will create a "standalone" liblxdialog.so library in the directory,
 # not linked against anything (useful when you want to link something
-# to it later).
+# to it later). To link the library from another directory, do:
+# hostprogs-y    := mconf
+# mconf-objs     := mconf.o
+# mconf-linkobjs := ../lxdialog/liblxdialog.so
+# This will prevent kbuild from trying to build ../lxdialog/liblxdialog.so
+# from scripts/kconfig nor make mconf depend on it.
 
 __hostprogs := $(sort $(hostprogs-y)$(hostprogs-m))
 
@@ -116,6 +121,7 @@ $(host-csingle): %: %.c FORCE
 quiet_cmd_host-cmulti	= HOSTLD  $@
       cmd_host-cmulti	= $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
 			  $(addprefix $(obj)/,$($(@F)-objs)) \
+			  $(addprefix $(obj)/,$($(@F)-linkobjs)) \
 			  $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
 $(host-cmulti): %: $(host-cobjs) $(host-cshlib) FORCE
 	$(call if_changed,host-cmulti)

[PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Petr Baudis]

After three years, the zombie walks again!  This patch (against the latest
git tree) cleans up interaction between kconfig's mconf (menuconfig
frontend) and lxdialog. Its commandline interface disappears in this patch,
instead a .so is packed from the lxdialog objects and the relevant
functions are called directly from mconf.

In practice, this means that drawing on the screen is done with _MUCH_
less overhead now, the screen updates are better optimalized as ncurses
won't get reset everytime you display something, that also implies that
the ugly screen flickering is done. As a cute side-effect, the dialogs
are now rendered on the top of the menu or help panel.  In the future,
this also gives us much more freedom for enhancing the user interface.

This opens space for plenty of cleanups of liblxdialog, removal of
superfluous stuff and temporary files usage, etc.

Compared to the previous version (from February 2003), this one should be
less buggy (especially wrt. the escape character handling), should not
crash while resizing and the resizing should have immediate effect
(although things can still start looking ugly when you are resizing while
not in a menu - to fix that properly, more liblxdialog integration is
required). Also, the code is considerably simplified on few places.

Signed-off-by: Petr Baudis <pasky@suse.cz>
---

 scripts/kconfig/Makefile     |   18 +
 scripts/kconfig/mconf.c      |  538 ++++++++++++++++--------------------------
 scripts/lxdialog/.gitignore  |    4 
 scripts/lxdialog/Makefile    |   18 +
 scripts/lxdialog/checklist.c |  113 ++++-----
 scripts/lxdialog/dialog.h    |   58 +++--
 scripts/lxdialog/inputbox.c  |    5 
 scripts/lxdialog/lxdialog.c  |  226 ------------------
 scripts/lxdialog/menubox.c   |   95 ++++---
 scripts/lxdialog/msgbox.c    |    8 -
 scripts/lxdialog/textbox.c   |    8 +
 scripts/lxdialog/util.c      |   62 +++++
 scripts/lxdialog/yesno.c     |    6 
 13 files changed, 448 insertions(+), 711 deletions(-)

diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index a96153f..0dc42ea 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -10,9 +10,8 @@ xconfig: $(obj)/qconf
 gconfig: $(obj)/gconf
 	$< arch/$(ARCH)/Kconfig
 
-menuconfig: $(obj)/mconf
-	$(Q)$(MAKE) $(build)=scripts/lxdialog
-	$< arch/$(ARCH)/Kconfig
+menuconfig: build-lxdialog $(obj)/mconf
+	$(obj)/mconf arch/$(ARCH)/Kconfig
 
 config: $(obj)/conf
 	$< arch/$(ARCH)/Kconfig
@@ -83,7 +82,7 @@ help:
 # ===========================================================================
 # Shared Makefile for the various kconfig executables:
 # conf:	  Used for defconfig, oldconfig and related targets
-# mconf:  Used for the mconfig target.
+# mconf:  Used for the mconfig target
 #         Utilizes the lxdialog package
 # qconf:  Used for the xconfig target
 #         Based on QT which needs to be installed to compile it
@@ -94,6 +93,7 @@ help:
 hostprogs-y	:= conf mconf qconf gconf kxgettext
 conf-objs	:= conf.o  zconf.tab.o
 mconf-objs	:= mconf.o zconf.tab.o
+mconf-linkobjs	:= ../lxdialog/liblxdialog.so
 kxgettext-objs	:= kxgettext.o zconf.tab.o
 
 ifeq ($(MAKECMDGOALS),xconfig)
@@ -129,6 +129,9 @@ endif
 HOSTCFLAGS_lex.zconf.o	:= -I$(src)
 HOSTCFLAGS_zconf.tab.o	:= -I$(src)
 
+HOSTLOADLIBES_mconf	= -lncurses
+
+
 HOSTLOADLIBES_qconf	= $(KC_QT_LIBS) -ldl
 HOSTCXXFLAGS_qconf.o	= $(KC_QT_CFLAGS) -D LKC_DIRECT_LINK
 
@@ -226,6 +229,13 @@ $(obj)/lkc_defs.h: $(src)/lkc_proto.h
 	sed < $< > $@ 's/P(\([^,]*\),.*/#define \1 (\*\1_p)/'
 
 
+# We need to do it indirectly since default kbuild rule will override
+# us otherwise.
+.PHONY: build-lxdialog
+build-lxdialog:	FORCE
+	$(Q)$(MAKE) $(build)=scripts/lxdialog
+
+
 ###
 # The following requires flex/bison/gperf
 # By default we use the _shipped versions, uncomment the following line if
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index d1ad405..6284de2 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -6,9 +6,12 @@
  * 2002-11-06 Petr Baudis <pasky@ucw.cz>
  *
  * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
+ *
+ * Rewritten to use liblxdialog directly instead of calling it as an
+ * external tool.
+ * 2005-12-11 Petr Baudis <pasky@suse.cz>
  */
 
-#include <sys/ioctl.h>
 #include <sys/wait.h>
 #include <ctype.h>
 #include <errno.h>
@@ -22,10 +25,11 @@
 #include <unistd.h>
 #include <locale.h>
 
+#include "../lxdialog/dialog.h"
+
 #define LKC_DIRECT_LINK
 #include "lkc.h"
 
-static char menu_backtitle[128];
 static const char mconf_readme[] = N_(
 "Overview\n"
 "--------\n"
@@ -256,18 +260,17 @@ search_help[] = N_(
 	"          USB$ => find all CONFIG_ symbols ending with USB\n"
 	"\n");
 
-static char buf[4096], *bufptr = buf;
-static char input_buf[4096];
 static char filename[PATH_MAX+1] = ".config";
-static char *args[1024], **argptr = args;
 static int indent;
 static struct termios ios_org;
-static int rows = 0, cols = 0;
 static struct menu *current_menu;
 static int child_count;
-static int do_resize;
 static int single_menu_mode;
 
+/* FIXME: This ought to be dynamic. */
+static struct dialog_list_item *items[32768];
+static int items_count;
+
 static void conf(struct menu *menu);
 static void conf_choice(struct menu *menu);
 static void conf_string(struct menu *menu);
@@ -278,94 +281,65 @@ static void show_helptext(const char *ti
 static void show_help(struct menu *menu);
 static void show_file(const char *filename, const char *title, int r, int c);
 
-static void cprint_init(void);
-static int cprint1(const char *fmt, ...);
-static void cprint_done(void);
-static int cprint(const char *fmt, ...);
-
-static void init_wsize(void)
-{
-	struct winsize ws;
-	char *env;
-
-	if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
-		rows = ws.ws_row;
-		cols = ws.ws_col;
-	}
 
-	if (!rows) {
-		env = getenv("LINES");
-		if (env)
-			rows = atoi(env);
-		if (!rows)
-			rows = 24;
-	}
-	if (!cols) {
-		env = getenv("COLUMNS");
-		if (env)
-			cols = atoi(env);
-		if (!cols)
-			cols = 80;
-	}
+static void winch_handler(int sig)
+{
+	static int lock;
 
-	if (rows < 19 || cols < 80) {
-		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
-		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
-		exit(1);
+	lock++;
+	if (lock == 1) {
+		resize_dialog();
+		lock--;
 	}
-
-	rows -= 4;
-	cols -= 5;
 }
 
-static void cprint_init(void)
-{
-	bufptr = buf;
-	argptr = args;
-	memset(args, 0, sizeof(args));
-	indent = 0;
-	child_count = 0;
-	cprint("./scripts/lxdialog/lxdialog");
-	cprint("--backtitle");
-	cprint(menu_backtitle);
-}
 
-static int cprint1(const char *fmt, ...)
+static void creset(void)
 {
-	va_list ap;
-	int res;
-
-	if (!*argptr)
-		*argptr = bufptr;
-	va_start(ap, fmt);
-	res = vsprintf(bufptr, fmt, ap);
-	va_end(ap);
-	bufptr += res;
+	int i;
 
-	return res;
+	for (i = 0; i < items_count; i++) {
+		free(items[i]->name);
+		free(items[i]);
+	}
+	items_count = 0;
 }
 
-static void cprint_done(void)
+static void cmake(void)
 {
-	*bufptr++ = 0;
-	argptr++;
+	items[items_count] = calloc(1, sizeof(struct dialog_list_item));
+	items[items_count]->name = malloc(512); items[items_count]->name[0] = 0;
+	items[items_count]->namelen = 0;
+	items_count++;
 }
 
-static int cprint(const char *fmt, ...)
+static int cprint_name(const char *fmt, ...)
 {
 	va_list ap;
-	int res;
+	int i, res;
+
+	if (!items_count)
+		cmake();
+	i = items_count - 1;
 
-	*argptr++ = bufptr;
 	va_start(ap, fmt);
-	res = vsprintf(bufptr, fmt, ap);
+	res = vsnprintf(items[i]->name + items[i]->namelen,
+			512 - items[i]->namelen, fmt, ap);
+	if (res > 0)
+		items[i]->namelen += res;
 	va_end(ap);
-	bufptr += res;
-	*bufptr++ = 0;
 
 	return res;
 }
 
+static int cset_tag(char type, void *ptr)
+{
+	items[items_count - 1]->type = type;
+	items[items_count - 1]->data = ptr;
+	return 0;
+}
+
+
 static void get_prompt_str(struct gstr *r, struct property *prop)
 {
 	int i, j;
@@ -438,108 +412,18 @@ static struct gstr get_relations_str(str
 	return res;
 }
 
-pid_t pid;
-
-static void winch_handler(int sig)
-{
-	if (!do_resize) {
-		kill(pid, SIGINT);
-		do_resize = 1;
-	}
-}
-
-static int exec_conf(void)
-{
-	int pipefd[2], stat, size;
-	struct sigaction sa;
-	sigset_t sset, osset;
-
-	sigemptyset(&sset);
-	sigaddset(&sset, SIGINT);
-	sigprocmask(SIG_BLOCK, &sset, &osset);
-
-	signal(SIGINT, SIG_DFL);
-
-	sa.sa_handler = winch_handler;
-	sigemptyset(&sa.sa_mask);
-	sa.sa_flags = SA_RESTART;
-	sigaction(SIGWINCH, &sa, NULL);
-
-	*argptr++ = NULL;
-
-	pipe(pipefd);
-	pid = fork();
-	if (pid == 0) {
-		sigprocmask(SIG_SETMASK, &osset, NULL);
-		dup2(pipefd[1], 2);
-		close(pipefd[0]);
-		close(pipefd[1]);
-		execv(args[0], args);
-		_exit(EXIT_FAILURE);
-	}
-
-	close(pipefd[1]);
-	bufptr = input_buf;
-	while (1) {
-		size = input_buf + sizeof(input_buf) - bufptr;
-		size = read(pipefd[0], bufptr, size);
-		if (size <= 0) {
-			if (size < 0) {
-				if (errno == EINTR || errno == EAGAIN)
-					continue;
-				perror("read");
-			}
-			break;
-		}
-		bufptr += size;
-	}
-	*bufptr++ = 0;
-	close(pipefd[0]);
-	waitpid(pid, &stat, 0);
-
-	if (do_resize) {
-		init_wsize();
-		do_resize = 0;
-		sigprocmask(SIG_SETMASK, &osset, NULL);
-		return -1;
-	}
-	if (WIFSIGNALED(stat)) {
-		printf("\finterrupted(%d)\n", WTERMSIG(stat));
-		exit(1);
-	}
-#if 0
-	printf("\fexit state: %d\nexit data: '%s'\n", WEXITSTATUS(stat), input_buf);
-	sleep(1);
-#endif
-	sigpending(&sset);
-	if (sigismember(&sset, SIGINT)) {
-		printf("\finterrupted\n");
-		exit(1);
-	}
-	sigprocmask(SIG_SETMASK, &osset, NULL);
-
-	return WEXITSTATUS(stat);
-}
 
 static void search_conf(void)
 {
 	struct symbol **sym_arr;
-	int stat;
 	struct gstr res;
 
 again:
-	cprint_init();
-	cprint("--title");
-	cprint(_("Search Configuration Parameter"));
-	cprint("--inputbox");
-	cprint(_("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"));
-	cprint("10");
-	cprint("75");
-	cprint("");
-	stat = exec_conf();
-	if (stat < 0)
+	switch (dialog_inputbox(_("Search Configuration Parameter"),
+				_("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"),
+				10, 75, "")) {
+	case -1:
 		goto again;
-	switch (stat) {
 	case 0:
 		break;
 	case 1:
@@ -549,7 +433,7 @@ again:
 		return;
 	}
 
-	sym_arr = sym_re_search(input_buf);
+	sym_arr = sym_re_search(dialog_input_result);
 	res = get_relations_str(sym_arr);
 	free(sym_arr);
 	show_textbox(_("Search Results"), str_get(&res), 0, 0);
@@ -576,24 +460,25 @@ static void build_conf(struct menu *menu
 			switch (prop->type) {
 			case P_MENU:
 				child_count++;
-				cprint("m%p", menu);
+				cmake();
+				cset_tag('m', menu);
 
 				if (single_menu_mode) {
-					cprint1("%s%*c%s",
+					cprint_name("%s%*c%s",
 						menu->data ? "-->" : "++>",
 						indent + 1, ' ', prompt);
 				} else
-					cprint1("   %*c%s  --->", indent + 1, ' ', prompt);
+					cprint_name("   %*c%s  --->", indent + 1, ' ', prompt);
 
-				cprint_done();
 				if (single_menu_mode && menu->data)
 					goto conf_childs;
 				return;
 			default:
 				if (prompt) {
 					child_count++;
-					cprint(":%p", menu);
-					cprint("---%*c%s", indent + 1, ' ', prompt);
+					cmake();
+					cset_tag(':', menu);
+					cprint_name("---%*c%s", indent + 1, ' ', prompt);
 				}
 			}
 		} else
@@ -601,6 +486,7 @@ static void build_conf(struct menu *menu
 		goto conf_childs;
 	}
 
+	cmake();
 	type = sym_get_type(sym);
 	if (sym_is_choice(sym)) {
 		struct symbol *def_sym = sym_get_choice_value(sym);
@@ -614,10 +500,10 @@ static void build_conf(struct menu *menu
 
 		val = sym_get_tristate_value(sym);
 		if (sym_is_changable(sym)) {
-			cprint("t%p", menu);
+			cset_tag('t', menu);
 			switch (type) {
 			case S_BOOLEAN:
-				cprint1("[%c]", val == no ? ' ' : '*');
+				cprint_name("[%c]", val == no ? ' ' : '*');
 				break;
 			case S_TRISTATE:
 				switch (val) {
@@ -625,84 +511,78 @@ static void build_conf(struct menu *menu
 				case mod: ch = 'M'; break;
 				default:  ch = ' '; break;
 				}
-				cprint1("<%c>", ch);
+				cprint_name("<%c>", ch);
 				break;
 			}
 		} else {
-			cprint("%c%p", def_menu ? 't' : ':', menu);
-			cprint1("   ");
+			cset_tag(def_menu ? 't' : ':', menu);
+			cprint_name("   ");
 		}
 
-		cprint1("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+		cprint_name("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
 		if (val == yes) {
 			if (def_menu) {
-				cprint1(" (%s)", menu_get_prompt(def_menu));
-				cprint1("  --->");
-				cprint_done();
+				cprint_name(" (%s)", menu_get_prompt(def_menu));
+				cprint_name("  --->");
 				if (def_menu->list) {
 					indent += 2;
 					build_conf(def_menu);
 					indent -= 2;
 				}
-			} else
-				cprint_done();
+			}
 			return;
 		}
-		cprint_done();
 	} else {
 		if (menu == current_menu) {
-			cprint(":%p", menu);
-			cprint("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+			cset_tag(':', menu);
+			cprint_name("---%*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) {
-			cprint(":%p", menu);
-			cprint1("   ");
+			cset_tag(':', menu);
+			cprint_name("   ");
 		} else {
 			switch (type) {
 			case S_BOOLEAN:
-				cprint("t%p", menu);
+				cset_tag('t', menu);
 				if (sym_is_changable(sym))
-					cprint1("[%c]", val == no ? ' ' : '*');
+					cprint_name("[%c]", val == no ? ' ' : '*');
 				else
-					cprint1("---");
+					cprint_name("---");
 				break;
 			case S_TRISTATE:
-				cprint("t%p", menu);
+				cset_tag('t', menu);
 				switch (val) {
 				case yes: ch = '*'; break;
 				case mod: ch = 'M'; break;
 				default:  ch = ' '; break;
 				}
 				if (sym_is_changable(sym))
-					cprint1("<%c>", ch);
+					cprint_name("<%c>", ch);
 				else
-					cprint1("---");
+					cprint_name("---");
 				break;
 			default:
-				cprint("s%p", menu);
-				tmp = cprint1("(%s)", sym_get_string_value(sym));
+				cset_tag('s', menu);
+				tmp = cprint_name("(%s)", sym_get_string_value(sym));
 				tmp = indent - tmp + 4;
 				if (tmp < 0)
 					tmp = 0;
-				cprint1("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
+				cprint_name("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
 					(sym_has_value(sym) || !sym_is_changable(sym)) ?
 					"" : " (NEW)");
-				cprint_done();
 				goto conf_childs;
 			}
 		}
-		cprint1("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
+		cprint_name("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
 			(sym_has_value(sym) || !sym_is_changable(sym)) ?
 			"" : " (NEW)");
 		if (menu->prompt->type == P_MENU) {
-			cprint1("  --->");
-			cprint_done();
+			cprint_name("  --->");
 			return;
 		}
-		cprint_done();
 	}
 
 conf_childs:
@@ -714,62 +594,58 @@ conf_childs:
 
 static void conf(struct menu *menu)
 {
-	struct menu *submenu;
+	char active_type = 0; void *active_ptr = NULL;
+	int choice;
 	const char *prompt = menu_get_prompt(menu);
+	struct menu *submenu;
 	struct symbol *sym;
-	char active_entry[40];
-	int stat, type, i;
+	int stat;
 
 	unlink("lxdialog.scrltmp");
-	active_entry[0] = 0;
 	while (1) {
-		cprint_init();
-		cprint("--title");
-		cprint("%s", prompt ? prompt : _("Main Menu"));
-		cprint("--menu");
-		cprint(_(menu_instructions));
-		cprint("%d", rows);
-		cprint("%d", cols);
-		cprint("%d", rows - 10);
-		cprint("%s", active_entry);
+		indent = 0;
+		child_count = 0;
 		current_menu = menu;
+		creset();
 		build_conf(menu);
 		if (!child_count)
 			break;
+
 		if (menu == &rootmenu) {
-			cprint(":");
-			cprint("--- ");
-			cprint("L");
-			cprint(_("    Load an Alternate Configuration File"));
-			cprint("S");
-			cprint(_("    Save Configuration to an Alternate File"));
+			cmake(); cset_tag(':', NULL); cprint_name("--- ");
+			cmake(); cset_tag('L', NULL); cprint_name(_("    Load an Alternate Configuration File"));
+			cmake(); cset_tag('S', NULL); cprint_name(_("    Save Configuration to an Alternate File"));
+		}
+
+		/* We must find choice again because build_conf() can shift
+		 * the items[] back/forth. */
+		/* This way, choice defaults to 0. */
+		for (choice = items_count - 1; choice; choice--) {
+			if (active_type == items[choice]->type
+			    && active_ptr == items[choice]->data)
+				break;
 		}
-		stat = exec_conf();
-		if (stat < 0)
-			continue;
-
-		if (stat == 1 || stat == 255)
-			break;
-
-		type = input_buf[0];
-		if (!type)
-			continue;
-
-		for (i = 0; input_buf[i] && !isspace(input_buf[i]); i++)
-			;
-		if (i >= sizeof(active_entry))
-			i = sizeof(active_entry) - 1;
-		input_buf[i] = 0;
-		strcpy(active_entry, input_buf);
+
+		dialog_clear();
+		stat = dialog_menu(prompt ? prompt : _("Main Menu"),
+				menu_instructions, rows, cols, rows - 10,
+				&choice, items_count, items);
+		if (stat < -1)
+			continue; /* Window resized, let's redraw... */
+		if (stat < 0 || stat == 1)
+			break;
+
+		active_type = items[choice]->type;
+		active_ptr = items[choice]->data;
 
 		sym = NULL;
-		submenu = NULL;
-		if (sscanf(input_buf + 1, "%p", &submenu) == 1)
+		submenu = active_ptr;
+		if (submenu)
 			sym = submenu->sym;
 
 		switch (stat) {
 		case 0:
-			switch (type) {
+			switch (active_type) {
 			case 'm':
 				if (single_menu_mode)
 					submenu->data = (void *) (long) !submenu->data;
@@ -800,7 +676,7 @@ static void conf(struct menu *menu)
 				show_helptext("README", _(mconf_readme));
 			break;
 		case 3:
-			if (type == 't') {
+			if (active_type == 't') {
 				if (sym_set_tristate_value(sym, yes))
 					break;
 				if (sym_set_tristate_value(sym, mod))
@@ -808,18 +684,22 @@ static void conf(struct menu *menu)
 			}
 			break;
 		case 4:
-			if (type == 't')
+			if (active_type == 't')
 				sym_set_tristate_value(sym, no);
 			break;
 		case 5:
-			if (type == 't')
+			if (active_type == 't')
 				sym_set_tristate_value(sym, mod);
 			break;
 		case 6:
-			if (type == 't')
+			if (active_type == 't') {
 				sym_toggle_tristate_value(sym);
-			else if (type == 'm')
-				conf(submenu);
+			} else if (active_type == 'm') {
+				if (single_menu_mode)
+					submenu->data = (void *) !submenu->data;
+				else
+					conf(submenu);
+			}
 			break;
 		case 7:
 			search_conf();
@@ -866,67 +746,55 @@ static void show_help(struct menu *menu)
 
 static void show_file(const char *filename, const char *title, int r, int c)
 {
-	do {
-		cprint_init();
-		if (title) {
-			cprint("--title");
-			cprint("%s", title);
-		}
-		cprint("--textbox");
-		cprint("%s", filename);
-		cprint("%d", r ? r : rows);
-		cprint("%d", c ? c : cols);
-	} while (exec_conf() < 0);
+	while (dialog_textbox(title, filename, r ? r : rows, c ? c : cols) < -1)
+		;
 }
 
 static void conf_choice(struct menu *menu)
 {
 	const char *prompt = menu_get_prompt(menu);
 	struct menu *child;
-	struct symbol *active;
-	int stat;
+	struct symbol *active_sym;
+	int active = 0, selected = 0;
 
-	active = sym_get_choice_value(menu->sym);
+	active_sym = sym_get_choice_value(menu->sym);
 	while (1) {
-		cprint_init();
-		cprint("--title");
-		cprint("%s", prompt ? prompt : _("Main Menu"));
-		cprint("--radiolist");
-		cprint(_(radiolist_instructions));
-		cprint("15");
-		cprint("70");
-		cprint("6");
-
 		current_menu = menu;
+		creset();
 		for (child = menu->list; child; child = child->next) {
 			if (!menu_is_visible(child))
 				continue;
-			cprint("%p", child);
-			cprint("%s", menu_get_prompt(child));
+			cmake();
+			cset_tag(0, child);
+			cprint_name("%s", menu_get_prompt(child));
 			if (child->sym == sym_get_choice_value(menu->sym))
-				cprint("ON");
-			else if (child->sym == active)
-				cprint("SELECTED");
-			else
-				cprint("OFF");
+				selected = items_count - 1;
+			if (child->sym == active_sym)
+				active = items_count - 1;
 		}
 
-		stat = exec_conf();
-		switch (stat) {
+		switch (dialog_checklist(prompt ? prompt : _("Main Menu"),
+					_(radiolist_instructions), 15, 70, 6,
+					&active, &selected,
+					items_count, items)) {
+		case -2:
+			break;
+		case -1:
+			return;
 		case 0:
-			if (sscanf(input_buf, "%p", &child) != 1)
+			child = items[selected]->data;
+			if (!child)
 				break;
 			sym_set_tristate_value(child->sym, yes);
 			return;
 		case 1:
-			if (sscanf(input_buf, "%p", &child) == 1) {
+			child = items[active]->data;
+			if (child) {
 				show_help(child);
-				active = child->sym;
+				active_sym = child->sym;
 			} else
 				show_help(menu);
 			break;
-		case 255:
-			return;
 		}
 	}
 }
@@ -934,99 +802,86 @@ static void conf_choice(struct menu *men
 static void conf_string(struct menu *menu)
 {
 	const char *prompt = menu_get_prompt(menu);
-	int stat;
 
 	while (1) {
-		cprint_init();
-		cprint("--title");
-		cprint("%s", prompt ? prompt : _("Main Menu"));
-		cprint("--inputbox");
+		char *heading;
+
 		switch (sym_get_type(menu->sym)) {
 		case S_INT:
-			cprint(_(inputbox_instructions_int));
+			heading = _(inputbox_instructions_int);
 			break;
 		case S_HEX:
-			cprint(_(inputbox_instructions_hex));
+			heading = _(inputbox_instructions_hex);
 			break;
 		case S_STRING:
-			cprint(_(inputbox_instructions_string));
+			heading = _(inputbox_instructions_string);
 			break;
 		default:
+			heading = "Internal mconf error!";
 			/* panic? */;
 		}
-		cprint("10");
-		cprint("75");
-		cprint("%s", sym_get_string_value(menu->sym));
-		stat = exec_conf();
-		switch (stat) {
+
+		switch (dialog_inputbox(prompt ? prompt : _("Main Menu"),
+					heading, 10, 75,
+					sym_get_string_value(menu->sym))) {
+		case -2:
+			break;
+		case -1:
+			return;
 		case 0:
-			if (sym_set_string_value(menu->sym, input_buf))
+			if (sym_set_string_value(menu->sym, dialog_input_result))
 				return;
 			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
 			break;
 		case 1:
 			show_help(menu);
 			break;
-		case 255:
-			return;
 		}
 	}
 }
 
 static void conf_load(void)
 {
-	int stat;
-
 	while (1) {
-		cprint_init();
-		cprint("--inputbox");
-		cprint(load_config_text);
-		cprint("11");
-		cprint("55");
-		cprint("%s", filename);
-		stat = exec_conf();
-		switch(stat) {
+		switch (dialog_inputbox(NULL, load_config_text, 11, 55,
+					filename)) {
+		case -2:
+			break;
+		case -1:
+			return;
 		case 0:
-			if (!input_buf[0])
+			if (!dialog_input_result[0])
 				return;
-			if (!conf_read(input_buf))
+			if (!conf_read(dialog_input_result))
 				return;
 			show_textbox(NULL, _("File does not exist!"), 5, 38);
 			break;
 		case 1:
 			show_helptext(_("Load Alternate Configuration"), load_config_help);
 			break;
-		case 255:
-			return;
 		}
 	}
 }
 
 static void conf_save(void)
 {
-	int stat;
-
 	while (1) {
-		cprint_init();
-		cprint("--inputbox");
-		cprint(save_config_text);
-		cprint("11");
-		cprint("55");
-		cprint("%s", filename);
-		stat = exec_conf();
-		switch(stat) {
+		switch (dialog_inputbox(NULL, save_config_text, 11, 55,
+					filename)) {
+		case -2:
+			break;
+		case -1:
+			return;
 		case 0:
-			if (!input_buf[0])
+			if (!dialog_input_result[0])
 				return;
-			if (!conf_write(input_buf))
+			if (!conf_write(dialog_input_result))
 				return;
 			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
 			break;
 		case 1:
 			show_helptext(_("Save Alternate Configuration"), save_config_help);
 			break;
-		case 255:
-			return;
 		}
 	}
 }
@@ -1051,9 +906,10 @@ int main(int ac, char **av)
 	conf_parse(av[1]);
 	conf_read(NULL);
 
+	backtitle = malloc(128);
 	sym = sym_lookup("KERNELRELEASE", 0);
 	sym_calc_value(sym);
-	sprintf(menu_backtitle, _("Linux Kernel v%s Configuration"),
+	snprintf(backtitle, 128, _("Linux Kernel v%s Configuration"),
 		sym_get_string_value(sym));
 
 	mode = getenv("MENUCONFIG_MODE");
@@ -1062,19 +918,25 @@ int main(int ac, char **av)
 			single_menu_mode = 1;
 	}
 
+	{
+		struct sigaction sa;
+		sa.sa_handler = winch_handler;
+		sigemptyset(&sa.sa_mask);
+		sa.sa_flags = 0;
+		sigaction(SIGWINCH, &sa, NULL);
+	}
+
 	tcgetattr(1, &ios_org);
 	atexit(conf_cleanup);
+	init_dialog();
 	init_wsize();
 	conf(&rootmenu);
-
 	do {
-		cprint_init();
-		cprint("--yesno");
-		cprint(_("Do you wish to save your new kernel configuration?"));
-		cprint("5");
-		cprint("60");
-		stat = exec_conf();
+		stat = dialog_yesno(NULL,
+				_("Do you wish to save your new kernel configuration?"),
+				5, 60);
 	} while (stat < 0);
+	end_dialog();
 
 	if (stat == 0) {
 		if (conf_write(NULL)) {
diff --git a/scripts/lxdialog/.gitignore b/scripts/lxdialog/.gitignore
new file mode 100644
index 0000000..4519018
--- /dev/null
+++ b/scripts/lxdialog/.gitignore
@@ -0,0 +1,4 @@
+#
+# The library
+#
+liblxdialog.so
diff --git a/scripts/lxdialog/Makefile b/scripts/lxdialog/Makefile
index a45a13f..9f65107 100644
--- a/scripts/lxdialog/Makefile
+++ b/scripts/lxdialog/Makefile
@@ -1,4 +1,14 @@
-HOST_EXTRACFLAGS := -DLOCALE 
+# A little excursion to the grand scheme of things:
+#
+# Unlike how it used to be in the past, now we don't use the external lxdialog
+# utility in make menuconfig, but we link the lxdialog suite directly against
+# mconf. Also, mconf is linked against ncurses only over there, regardless
+# to what you see here in HOST_LOADLIBES; here we merely check for ncurses
+# presence.
+#
+# 2005-12-11 Petr Baudis <pasky@suse.cz>
+
+HOST_EXTRACFLAGS := -DLOCALE
 ifeq ($(shell uname),SunOS)
 HOST_LOADLIBES   := -lcurses
 else
@@ -19,11 +29,11 @@ endif
 endif
 endif
 
-hostprogs-y	:= lxdialog
+hostprogs-y	:= liblxdialog.so
 always		:= ncurses $(hostprogs-y)
 
-lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
-		 util.o lxdialog.o msgbox.o
+liblxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
+		util.o msgbox.o
 
 .PHONY: $(obj)/ncurses
 $(obj)/ncurses:
diff --git a/scripts/lxdialog/checklist.c b/scripts/lxdialog/checklist.c
index 7aba17c..4788480 100644
--- a/scripts/lxdialog/checklist.c
+++ b/scripts/lxdialog/checklist.c
@@ -23,7 +23,7 @@
 
 #include "dialog.h"
 
-static int list_width, check_x, item_x, checkflag;
+static int list_width, check_x, item_x;
 
 /*
  * Print list item
@@ -42,10 +42,7 @@ print_item (WINDOW * win, const char *it
 
     wmove (win, choice, check_x);
     wattrset (win, selected ? check_selected_attr : check_attr);
-    if (checkflag == FLAG_CHECK)
-	wprintw (win, "[%c]", status ? 'X' : ' ');
-    else
-	wprintw (win, "(%c)", status ? 'X' : ' ');
+    wprintw (win, "(%c)", status ? 'X' : ' ');
 
     wattrset (win, selected ? tag_selected_attr : tag_attr);
     mvwaddch(win, choice, item_x, item[0]);
@@ -61,7 +58,7 @@ print_item (WINDOW * win, const char *it
  * Print the scroll indicators.
  */
 static void
-print_arrows (WINDOW * win, int choice, int item_no, int scroll,
+print_arrows (WINDOW * win, int choice, int items_count, int scroll,
 		int y, int x, int height)
 {
     wmove(win, y, x);
@@ -82,7 +79,7 @@ print_arrows (WINDOW * win, int choice, 
    y = y + height + 1;
    wmove(win, y, x);
 
-   if ((height < item_no) && (scroll + choice < item_no - 1)) {
+   if ((height < items_count) && (scroll + choice < items_count - 1)) {
 	wattrset (win, darrow_attr);
 	waddch (win, ACS_DARROW);
 	waddstr (win, "(+)");
@@ -113,22 +110,22 @@ print_buttons( WINDOW *dialog, int heigh
 }
 
 /*
- * Display a dialog box with a list of options that can be turned on or off
- * The `flag' parameter is used to select between radiolist and checklist.
+ * Display a dialog box with a list of options that can be turned on or off,
+ * in the style of radiobuttons (only one option valid at a time)
  */
 int
-dialog_checklist (const char *title, const char *prompt, int height, int width,
-	int list_height, int item_no, const char * const * items, int flag)
-	
+dialog_checklist (const char *title, const char *prompt,
+		int height, int width, int list_height,
+		int *active, int *checked,
+		int items_count, struct dialog_list_item ** items)
 {
     int i, x, y, box_x, box_y;
     int key = 0, button = 0, choice = 0, scroll = 0, max_choice, *status;
     WINDOW *dialog, *list;
 
-    checkflag = flag;
-
     /* Allocate space for storing item on/off status */
-    if ((status = malloc (sizeof (int) * item_no)) == NULL) {
+    /* XXX: This whole status[] thing can be killed now. */
+    if ((status = malloc (sizeof (int) * items_count)) == NULL) {
 	endwin ();
 	fprintf (stderr,
 		 "\nCan't allocate memory in dialog_checklist().\n");
@@ -136,15 +133,12 @@ dialog_checklist (const char *title, con
     }
 
     /* Initializes status */
-    for (i = 0; i < item_no; i++) {
-	status[i] = !strcasecmp (items[i * 3 + 2], "on");
-	if ((!choice && status[i]) || !strcasecmp (items[i * 3 + 2], "selected"))
-            choice = i + 1;
+    for (i = 0; i < items_count; i++) {
+	status[i] = 0;
     }
-    if (choice)
-	    choice--;
-
-    max_choice = MIN (list_height, item_no);
+    status[*checked] = 1;
+    choice = *active;
+    max_choice = MIN (list_height, items_count);
 
     /* center dialog box on screen */
     x = (COLS - width) / 2;
@@ -196,8 +190,8 @@ dialog_checklist (const char *title, con
 
     /* Find length of longest item in order to center checklist */
     check_x = 0;
-    for (i = 0; i < item_no; i++) 
-	check_x = MAX (check_x, + strlen (items[i * 3 + 1]) + 4);
+    for (i = 0; i < items_count; i++) 
+	check_x = MAX (check_x, + strlen (items[i]->name) + 4);
 
     check_x = (list_width - check_x) / 2;
     item_x = check_x + 4;
@@ -209,11 +203,11 @@ dialog_checklist (const char *title, con
 
     /* Print the list */
     for (i = 0; i < max_choice; i++) {
-	print_item (list, items[(scroll+i) * 3 + 1],
+	print_item (list, items[scroll + i]->name,
 		    status[i+scroll], i, i == choice);
     }
 
-    print_arrows(dialog, choice, item_no, scroll,
+    print_arrows(dialog, choice, items_count, scroll,
 			box_y, box_x + check_x + 5, list_height);
 
     print_buttons(dialog, height, width, 0);
@@ -225,8 +219,11 @@ dialog_checklist (const char *title, con
     while (key != ESC) {
 	key = wgetch (dialog);
 
+	if (should_resize)
+	    do_resize_dialog();
+
     	for (i = 0; i < max_choice; i++)
-            if (toupper(key) == toupper(items[(scroll+i)*3+1][0]))
+            if (toupper(key) == toupper(items[scroll + i]->name[0]))
                 break;
 
 
@@ -239,18 +236,18 @@ dialog_checklist (const char *title, con
 		    /* Scroll list down */
 		    if (list_height > 1) {
 			/* De-highlight current first item */
-			print_item (list, items[scroll * 3 + 1],
+			print_item (list, items[scroll]->name,
 					status[scroll], 0, FALSE);
 			scrollok (list, TRUE);
 			wscrl (list, -1);
 			scrollok (list, FALSE);
 		    }
 		    scroll--;
-		    print_item (list, items[scroll * 3 + 1],
+		    print_item (list, items[scroll]->name,
 				status[scroll], 0, TRUE);
 		    wnoutrefresh (list);
 
-    		    print_arrows(dialog, choice, item_no, scroll,
+    		    print_arrows(dialog, choice, items_count, scroll,
 				box_y, box_x + check_x + 5, list_height);
 
 		    wrefresh (dialog);
@@ -260,12 +257,12 @@ dialog_checklist (const char *title, con
 		    i = choice - 1;
 	    } else if (key == KEY_DOWN || key == '+') {
 		if (choice == max_choice - 1) {
-		    if (scroll + choice >= item_no - 1)
+		    if (scroll + choice >= items_count - 1)
 			continue;
 		    /* Scroll list up */
 		    if (list_height > 1) {
 			/* De-highlight current last item before scrolling up */
-			print_item (list, items[(scroll + max_choice - 1) * 3 + 1],
+			print_item (list, items[scroll + max_choice - 1]->name,
 				    status[scroll + max_choice - 1],
 				    max_choice - 1, FALSE);
 			scrollok (list, TRUE);
@@ -273,12 +270,12 @@ dialog_checklist (const char *title, con
 			scrollok (list, FALSE);
 		    }
 		    scroll++;
-		    print_item (list, items[(scroll + max_choice - 1) * 3 + 1],
+		    print_item (list, items[scroll + max_choice - 1]->name,
 				status[scroll + max_choice - 1],
 				max_choice - 1, TRUE);
 		    wnoutrefresh (list);
 
-    		    print_arrows(dialog, choice, item_no, scroll,
+    		    print_arrows(dialog, choice, items_count, scroll,
 				box_y, box_x + check_x + 5, list_height);
 
 		    wrefresh (dialog);
@@ -289,11 +286,11 @@ dialog_checklist (const char *title, con
 	    }
 	    if (i != choice) {
 		/* De-highlight current item */
-		print_item (list, items[(scroll + choice) * 3 + 1],
+		print_item (list, items[scroll + choice]->name,
 			    status[scroll + choice], choice, FALSE);
 		/* Highlight new item */
 		choice = i;
-		print_item (list, items[(scroll + choice) * 3 + 1],
+		print_item (list, items[scroll + choice]->name,
 			    status[scroll + choice], choice, TRUE);
 		wnoutrefresh (list);
 		wrefresh (dialog);
@@ -304,7 +301,7 @@ dialog_checklist (const char *title, con
 	case 'H':
 	case 'h':
 	case '?':
-	    fprintf (stderr, "%s", items[(scroll + choice) * 3]);
+	    *active = scroll + choice;
 	    delwin (dialog);
 	    free (status);
 	    return 1;
@@ -317,41 +314,26 @@ dialog_checklist (const char *title, con
 	    print_buttons(dialog, height, width, button);
 	    wrefresh (dialog);
 	    break;
+	case KEY_RESIZE:
+	    button = -2;
 	case 'S':
 	case 's':
 	case ' ':
 	case '\n':
 	    if (!button) {
-		if (flag == FLAG_CHECK) {
-		    status[scroll + choice] = !status[scroll + choice];
-		    wmove (list, choice, check_x);
-		    wattrset (list, check_selected_attr);
-		    wprintw (list, "[%c]", status[scroll + choice] ? 'X' : ' ');
-		} else {
-		    if (!status[scroll + choice]) {
-			for (i = 0; i < item_no; i++)
-			    status[i] = 0;
-			status[scroll + choice] = 1;
-			for (i = 0; i < max_choice; i++)
-			    print_item (list, items[(scroll + i) * 3 + 1],
-					status[scroll + i], i, i == choice);
-		    }
+		if (!status[scroll + choice]) {
+		    for (i = 0; i < items_count; i++)
+		        status[i] = 0;
+		    status[scroll + choice] = 1;
+		    for (i = 0; i < max_choice; i++)
+		        print_item (list, items[scroll + i]->name,
+		    		status[scroll + i], i, i == choice);
 		}
 		wnoutrefresh (list);
 		wrefresh (dialog);
-            
-		for (i = 0; i < item_no; i++) {
-		    if (status[i]) {
-			if (flag == FLAG_CHECK) {
-			    fprintf (stderr, "\"%s\" ", items[i * 3]);
-			} else {
-			    fprintf (stderr, "%s", items[i * 3]);
-			}
-
-		    }
-		}
-            } else
-		fprintf (stderr, "%s", items[(scroll + choice) * 3]);
+		*checked = scroll + choice;
+	    }
+	    *active = scroll + choice;
 	    delwin (dialog);
 	    free (status);
 	    return button;
@@ -365,7 +347,6 @@ dialog_checklist (const char *title, con
 	/* Now, update everything... */
 	doupdate ();
     }
-    
 
     delwin (dialog);
     free (status);
diff --git a/scripts/lxdialog/dialog.h b/scripts/lxdialog/dialog.h
index eb63e1b..d9239a8 100644
--- a/scripts/lxdialog/dialog.h
+++ b/scripts/lxdialog/dialog.h
@@ -29,6 +29,9 @@
 #ifdef __sun__
 #define CURS_MACROS
 #endif
+/* CURSES_LOC is not defined when we #include this from mconf.c. So in
+ * general, parts guarded in CURSES_LOC are private to liblxdialog. */
+#ifdef CURSES_LOC
 #include CURSES_LOC
 
 /*
@@ -128,41 +131,62 @@
  * Global variables
  */
 extern bool use_colors;
-extern bool use_shadow;
+extern volatile bool should_resize;
 
 extern chtype attributes[];
+#endif
+
+extern int rows, cols;
+extern char *backtitle;
 
-extern const char *backtitle;
+struct dialog_list_item {
+	char *name;
+	int namelen;
+	char type;
+	void *data;
+};
 
 /*
  * Function prototypes
  */
-extern void create_rc (const char *filename);
-extern int parse_rc (void);
-
 
 void init_dialog (void);
 void end_dialog (void);
-void attr_clear (WINDOW * win, int height, int width, chtype attr);
+void init_wsize (void);
+void resize_dialog (void);
+void do_resize_dialog (void);
 void dialog_clear (void);
+#ifdef CURSES_LOC
+void attr_clear (WINDOW * win, int height, int width, chtype attr);
 void color_setup (void);
 void print_autowrap (WINDOW * win, const char *prompt, int width, int y, int x);
 void print_button (WINDOW * win, const 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);
 void draw_shadow (WINDOW * win, int y, int x, int height, int width);
+#endif
 
 int first_alpha (const char *string, const char *exempt);
+
+/* Generally, these functions return the id of the pressed button, -1 for
+ * escape and -2 when the window was resized (just call the function again). */
+/* If the function accepts *active (index to the items[] array), it will
+ * change it to the last active item when returning. *checked is similar
+ * but it denotes which item was checked when returning (may not be same
+ * e.g. when the [Help] button was pressed). */
+
 int dialog_yesno (const char *title, const char *prompt, int height, int width);
 int dialog_msgbox (const char *title, const char *prompt, int height,
 		int width, int pause);
 int dialog_textbox (const char *title, const char *file, int height, int width);
-int dialog_menu (const char *title, const char *prompt, int height, int width,
-		int menu_height, const char *choice, int item_no, 
-		const char * const * items);
-int dialog_checklist (const char *title, const char *prompt, int height,
-		int width, int list_height, int item_no,
-		const char * const * items, int flag);
+int dialog_menu (const char *title, const char *prompt,
+		int height, int width, int menu_height,
+		int *active,
+		int items_count, struct dialog_list_item ** items);
+int dialog_checklist (const char *title, const char *prompt,
+		int height, int width, int list_height,
+		int *active, int *checked,
+		int items_count, struct dialog_list_item ** items);
 extern char dialog_input_result[];
 int dialog_inputbox (const char *title, const char *prompt, int height,
 		int width, const char *init);
@@ -176,12 +200,6 @@ int dialog_inputbox (const char *title, 
  *   -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o')
  *   -- uppercase chars are used to invoke the button (M_EVENT + 'O')
  */
+#ifdef CURSES_LOC
 #define M_EVENT (KEY_MAX+1)
-
-
-/*
- * The `flag' parameter in checklist is used to select between
- * radiolist and checklist
- */
-#define FLAG_CHECK 1
-#define FLAG_RADIO 0
+#endif
diff --git a/scripts/lxdialog/inputbox.c b/scripts/lxdialog/inputbox.c
index 074d2d6..e32ac9a 100644
--- a/scripts/lxdialog/inputbox.c
+++ b/scripts/lxdialog/inputbox.c
@@ -123,6 +123,9 @@ dialog_inputbox (const char *title, cons
     while (key != ESC) {
 	key = wgetch (dialog);
 
+	if (should_resize)
+	    do_resize_dialog();
+
 	if (button == -1) {	/* Input box selected */
 	    switch (key) {
 	    case TAB:
@@ -223,6 +226,8 @@ dialog_inputbox (const char *title, cons
 		break;
 	    }
 	    break;
+	case KEY_RESIZE:
+	    button = -2;
 	case ' ':
 	case '\n':
 	    delwin (dialog);
diff --git a/scripts/lxdialog/lxdialog.c b/scripts/lxdialog/lxdialog.c
deleted file mode 100644
index f283a85..0000000
--- a/scripts/lxdialog/lxdialog.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- *  dialog - Display simple dialog boxes from shell scripts
- *
- *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
- *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- *
- *  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.h"
-
-static void Usage (const char *name);
-
-typedef int (jumperFn) (const char *title, int argc, const char * const * argv);
-
-struct Mode {
-    char *name;
-    int argmin, argmax, argmod;
-    jumperFn *jumper;
-};
-
-jumperFn j_menu, j_checklist, j_radiolist, j_yesno, j_textbox, j_inputbox;
-jumperFn j_msgbox, j_infobox;
-
-static struct Mode modes[] =
-{
-    {"--menu", 9, 0, 3, j_menu},
-    {"--checklist", 9, 0, 3, j_checklist},
-    {"--radiolist", 9, 0, 3, j_radiolist},
-    {"--yesno",    5,5,1, j_yesno},
-    {"--textbox",  5,5,1, j_textbox},
-    {"--inputbox", 5, 6, 1, j_inputbox},
-    {"--msgbox", 5, 5, 1, j_msgbox},
-    {"--infobox", 5, 5, 1, j_infobox},
-    {NULL, 0, 0, 0, NULL}
-};
-
-static struct Mode *modePtr;
-
-#ifdef LOCALE
-#include <locale.h>
-#endif
-
-int
-main (int argc, const char * const * argv)
-{
-    int offset = 0, opt_clear = 0, end_common_opts = 0, retval;
-    const char *title = NULL;
-
-#ifdef LOCALE
-    (void) setlocale (LC_ALL, "");
-#endif
-
-#ifdef TRACE
-    trace(TRACE_CALLS|TRACE_UPDATE);
-#endif
-    if (argc < 2) {
-	Usage (argv[0]);
-	exit (-1);
-    }
-
-    while (offset < argc - 1 && !end_common_opts) {	/* Common options */
-	if (!strcmp (argv[offset + 1], "--title")) {
-	    if (argc - offset < 3 || title != NULL) {
-		Usage (argv[0]);
-		exit (-1);
-	    } else {
-		title = argv[offset + 2];
-		offset += 2;
-	    }
-        } else if (!strcmp (argv[offset + 1], "--backtitle")) {
-            if (backtitle != NULL) {
-                Usage (argv[0]);
-                exit (-1);
-            } else {
-                backtitle = argv[offset + 2];
-                offset += 2;
-            }
-	} else if (!strcmp (argv[offset + 1], "--clear")) {
-	    if (opt_clear) {		/* Hey, "--clear" can't appear twice! */
-		Usage (argv[0]);
-		exit (-1);
-	    } else if (argc == 2) {	/* we only want to clear the screen */
-		init_dialog ();
-		refresh ();	/* init_dialog() will clear the screen for us */
-		end_dialog ();
-		return 0;
-	    } else {
-		opt_clear = 1;
-		offset++;
-	    }
-	} else			/* no more common options */
-	    end_common_opts = 1;
-    }
-
-    if (argc - 1 == offset) {	/* no more options */
-	Usage (argv[0]);
-	exit (-1);
-    }
-    /* use a table to look for the requested mode, to avoid code duplication */
-
-    for (modePtr = modes; modePtr->name; modePtr++)	/* look for the mode */
-	if (!strcmp (argv[offset + 1], modePtr->name))
-	    break;
-
-    if (!modePtr->name)
-	Usage (argv[0]);
-    if (argc - offset < modePtr->argmin)
-	Usage (argv[0]);
-    if (modePtr->argmax && argc - offset > modePtr->argmax)
-	Usage (argv[0]);
-
-
-
-    init_dialog ();
-    retval = (*(modePtr->jumper)) (title, argc - offset, argv + offset);
-
-    if (opt_clear) {		/* clear screen before exit */
-	attr_clear (stdscr, LINES, COLS, screen_attr);
-	refresh ();
-    }
-    end_dialog();
-
-    exit (retval);
-}
-
-/*
- * Print program usage
- */
-static void
-Usage (const char *name)
-{
-    fprintf (stderr, "\
-\ndialog, by Savio Lam (lam836@cs.cuhk.hk).\
-\n  patched by Stuart Herbert (S.Herbert@shef.ac.uk)\
-\n  modified/gutted for use as a Linux kernel config tool by \
-\n  William Roadcap (roadcapw@cfw.com)\
-\n\
-\n* Display dialog boxes from shell scripts *\
-\n\
-\nUsage: %s --clear\
-\n       %s [--title <title>] [--backtitle <backtitle>] --clear <Box options>\
-\n\
-\nBox options:\
-\n\
-\n  --menu      <text> <height> <width> <menu height> <tag1> <item1>...\
-\n  --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
-\n  --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
-\n  --textbox   <file> <height> <width>\
-\n  --inputbox  <text> <height> <width> [<init>]\
-\n  --yesno     <text> <height> <width>\
-\n", name, name);
-    exit (-1);
-}
-
-/*
- * These are the program jumpers
- */
-
-int
-j_menu (const char *t, int ac, const char * const * av)
-{
-    return dialog_menu (t, av[2], atoi (av[3]), atoi (av[4]),
-			atoi (av[5]), av[6], (ac - 6) / 2, av + 7);
-}
-
-int
-j_checklist (const char *t, int ac, const char * const * av)
-{
-    return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
-	atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_CHECK);
-}
-
-int
-j_radiolist (const char *t, int ac, const char * const * av)
-{
-    return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
-	atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_RADIO);
-}
-
-int
-j_textbox (const char *t, int ac, const char * const * av)
-{
-    return dialog_textbox (t, av[2], atoi (av[3]), atoi (av[4]));
-}
-
-int
-j_yesno (const char *t, int ac, const char * const * av)
-{
-    return dialog_yesno (t, av[2], atoi (av[3]), atoi (av[4]));
-}
-
-int
-j_inputbox (const char *t, int ac, const char * const * av)
-{
-    int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),
-                            ac == 6 ? av[5] : (char *) NULL);
-    if (ret == 0)
-        fprintf(stderr, dialog_input_result);
-    return ret;
-}
-
-int
-j_msgbox (const char *t, int ac, const char * const * av)
-{
-    return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 1);
-}
-
-int
-j_infobox (const char *t, int ac, const char * const * av)
-{
-    return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 0);
-}
-
diff --git a/scripts/lxdialog/menubox.c b/scripts/lxdialog/menubox.c
index 91d82ba..48df20a 100644
--- a/scripts/lxdialog/menubox.c
+++ b/scripts/lxdialog/menubox.c
@@ -93,7 +93,7 @@ print_item (WINDOW * win, const char *it
     }
     if (selected) {
 	wmove (win, choice, item_x+1);
-	wrefresh (win);
+	wnoutrefresh (win);
     }
 }
 
@@ -101,7 +101,7 @@ print_item (WINDOW * win, const char *it
  * Print the scroll indicators.
  */
 static void
-print_arrows (WINDOW * win, int item_no, int scroll,
+print_arrows (WINDOW * win, int items_count, int scroll,
 		int y, int x, int height)
 {
     int cur_y, cur_x;
@@ -126,7 +126,7 @@ print_arrows (WINDOW * win, int item_no,
    y = y + height + 1;
    wmove(win, y, x);
 
-   if ((height < item_no) && (scroll + height < item_no)) {
+   if ((height < items_count) && (scroll + height < items_count)) {
 	wattrset (win, darrow_attr);
 	waddch (win, ACS_DARROW);
 	waddstr (win, "(+)");
@@ -163,17 +163,18 @@ print_buttons (WINDOW *win, int height, 
  * Display a menu for choosing among a number of options
  */
 int
-dialog_menu (const char *title, const char *prompt, int height, int width,
-		int menu_height, const char *current, int item_no,
-		const char * const * items)
-
+dialog_menu (const char *title, const char *prompt,
+		int height, int width, int menu_height,
+		int *active,
+		int items_count, struct dialog_list_item ** items)
 {
     int i, j, x, y, box_x, box_y;
     int key = 0, button = 0, scroll = 0, choice = 0, first_item = 0, max_choice;
     WINDOW *dialog, *menu;
     FILE *f;
 
-    max_choice = MIN (menu_height, item_no);
+    choice = *active;
+    max_choice = MIN (menu_height, items_count);
 
     /* center dialog box on screen */
     x = (COLS - width) / 2;
@@ -226,12 +227,10 @@ dialog_menu (const char *title, const ch
 
     /*
      * Find length of longest item in order to center menu.
-     * Set 'choice' to default item. 
      */
     item_x = 0;
-    for (i = 0; i < item_no; i++) {
-	item_x = MAX (item_x, MIN(menu_width, strlen (items[i * 2 + 1]) + 2));
-	if (strcmp(current, items[i*2]) == 0) choice = i;
+    for (i = 0; i < items_count; i++) {
+	item_x = MAX (item_x, MIN(menu_width, strlen (items[i]->name) + 2));
     }
 
     item_x = (menu_width - item_x) / 2;
@@ -240,7 +239,7 @@ dialog_menu (const char *title, const ch
     if ( (f=fopen("lxdialog.scrltmp","r")) != NULL ) {
 	if ( (fscanf(f,"%d\n",&scroll) == 1) && (scroll <= choice) &&
 	     (scroll+max_choice > choice) && (scroll >= 0) &&
-	     (scroll+max_choice <= item_no) ) {
+	     (scroll+max_choice <= items_count) ) {
 	    first_item = scroll;
 	    choice = choice - scroll;
 	    fclose(f);
@@ -252,8 +251,8 @@ dialog_menu (const char *title, const ch
 	}
     }
     if ( (choice >= max_choice) || (f==NULL && choice >= max_choice/2) ) {
-	if (choice >= item_no-max_choice/2)
-	    scroll = first_item = item_no-max_choice;
+	if (choice >= items_count-max_choice/2)
+	    scroll = first_item = items_count-max_choice;
 	else
 	    scroll = first_item = choice - max_choice/2;
 	choice = choice - scroll;
@@ -261,13 +260,13 @@ dialog_menu (const char *title, const ch
 
     /* Print the menu */
     for (i=0; i < max_choice; i++) {
-	print_item (menu, items[(first_item + i) * 2 + 1], i, i == choice,
-                    (items[(first_item + i)*2][0] != ':'));
+	print_item (menu, items[first_item + i]->name, i, i == choice,
+                    (items[first_item + i]->type != ':'));
     }
 
     wnoutrefresh (menu);
 
-    print_arrows(dialog, item_no, scroll,
+    print_arrows(dialog, items_count, scroll,
 		 box_y, box_x+item_x+1, menu_height);
 
     print_buttons (dialog, height, width, 0);
@@ -277,20 +276,23 @@ dialog_menu (const char *title, const ch
     while (key != ESC) {
 	key = wgetch(menu);
 
+	if (should_resize)
+	    do_resize_dialog();
+
 	if (key < 256 && isalpha(key)) key = tolower(key);
 
 	if (strchr("ynmh", key))
 		i = max_choice;
 	else {
         for (i = choice+1; i < max_choice; i++) {
-		j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh");
-		if (key == tolower(items[(scroll+i)*2+1][j]))
+		j = first_alpha(items[scroll + i]->name, "YyNnMmHh");
+		if (key == tolower(items[scroll + i]->name[j]))
                 	break;
 	}
 	if (i == max_choice)
        		for (i = 0; i < max_choice; i++) {
-			j = first_alpha(items[(scroll+i)*2+1], "YyNnMmHh");
-			if (key == tolower(items[(scroll+i)*2+1][j]))
+			j = first_alpha(items[scroll + i]->name, "YyNnMmHh");
+			if (key == tolower(items[scroll + i]->name[j]))
                 		break;
 		}
 	}
@@ -300,8 +302,8 @@ dialog_menu (const char *title, const ch
             key == '-' || key == '+' ||
             key == KEY_PPAGE || key == KEY_NPAGE) {
 
-            print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
-                       (items[(scroll+choice)*2][0] != ':'));
+            print_item (menu, items[scroll + choice]->name, choice, FALSE,
+                       (items[scroll + choice]->type != ':'));
 
 	    if (key == KEY_UP || key == '-') {
                 if (choice < 2 && scroll) {
@@ -312,18 +314,18 @@ dialog_menu (const char *title, const ch
 
                     scroll--;
 
-                    print_item (menu, items[scroll * 2 + 1], 0, FALSE,
-                               (items[scroll*2][0] != ':'));
+                    print_item (menu, items[scroll]->name, 0, FALSE,
+                               (items[scroll]->type != ':'));
 		} else
 		    choice = MAX(choice - 1, 0);
 
 	    } else if (key == KEY_DOWN || key == '+')  {
 
-		print_item (menu, items[(scroll+choice)*2+1], choice, FALSE,
-                                (items[(scroll+choice)*2][0] != ':'));
+		print_item (menu, items[scroll + choice]->name, choice, FALSE,
+                                (items[scroll + choice]->type != ':'));
 
                 if ((choice > max_choice-3) &&
-                    (scroll + max_choice < item_no)
+                    (scroll + max_choice < items_count)
                    ) {
 		    /* Scroll menu up */
 		    scrollok (menu, TRUE);
@@ -332,9 +334,9 @@ dialog_menu (const char *title, const ch
 
                     scroll++;
 
-                    print_item (menu, items[(scroll+max_choice-1)*2+1],
+                    print_item (menu, items[scroll + max_choice - 1]->name,
                                max_choice-1, FALSE,
-                               (items[(scroll+max_choice-1)*2][0] != ':'));
+                               (items[scroll + max_choice - 1]->type != ':'));
                 } else
                     choice = MIN(choice+1, max_choice-1);
 
@@ -344,8 +346,8 @@ dialog_menu (const char *title, const ch
                     if (scroll > 0) {
                 	wscrl (menu, -1);
                 	scroll--;
-                	print_item (menu, items[scroll * 2 + 1], 0, FALSE,
-                	(items[scroll*2][0] != ':'));
+                	print_item (menu, items[scroll]->name, 0, FALSE,
+                	(items[scroll]->type != ':'));
                     } else {
                         if (choice > 0)
                             choice--;
@@ -355,14 +357,14 @@ dialog_menu (const char *title, const ch
 
             } else if (key == KEY_NPAGE) {
                 for (i=0; (i < max_choice); i++) {
-                    if (scroll+max_choice < item_no) {
+                    if (scroll+max_choice < items_count) {
 			scrollok (menu, TRUE);
 			wscrl (menu, 1);
 			scrollok (menu, FALSE);
                 	scroll++;
-                	print_item (menu, items[(scroll+max_choice-1)*2+1],
+                	print_item (menu, items[scroll + max_choice - 1]->name,
 			            max_choice-1, FALSE,
-			            (items[(scroll+max_choice-1)*2][0] != ':'));
+			            (items[scroll + max_choice - 1]->type != ':'));
 		    } else {
 			if (choice+1 < max_choice)
 			    choice++;
@@ -372,10 +374,10 @@ dialog_menu (const char *title, const ch
             } else
                 choice = i;
 
-            print_item (menu, items[(scroll+choice)*2+1], choice, TRUE,
-                       (items[(scroll+choice)*2][0] != ':'));
+            print_item (menu, items[scroll + choice]->name, choice, TRUE,
+                       (items[scroll + choice]->type != ':'));
 
-            print_arrows(dialog, item_no, scroll,
+            print_arrows(dialog, items_count, scroll,
                          box_y, box_x+item_x+1, menu_height);
 
             wnoutrefresh (dialog);
@@ -394,19 +396,20 @@ dialog_menu (const char *title, const ch
 	    print_buttons(dialog, height, width, button);
 	    wrefresh (menu);
 	    break;
-	case ' ':
+	case KEY_RESIZE:
 	case 's':
 	case 'y':
 	case 'n':
 	case 'm':
 	case '/':
+	case ' ':
 	    /* save scroll info */
 	    if ( (f=fopen("lxdialog.scrltmp","w")) != NULL ) {
 		fprintf(f,"%d\n",scroll);
 		fclose(f);
 	    }
 	    delwin (dialog);
-            fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
+	    *active = scroll + choice;
             switch (key) {
             case 's': return 3;
             case 'y': return 3;
@@ -415,19 +418,13 @@ dialog_menu (const char *title, const ch
             case ' ': return 6;
             case '/': return 7;
             }
-	    return 0;
+	    return -2;
 	case 'h':
 	case '?':
 	    button = 2;
 	case '\n':
 	    delwin (dialog);
-	    if (button == 2) 
-            	fprintf(stderr, "%s \"%s\"\n", 
-			items[(scroll + choice) * 2],
-			items[(scroll + choice) * 2 + 1] +
-			first_alpha(items[(scroll + choice) * 2 + 1],""));
-	    else
-            	fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
+	    *active = scroll + choice;
 
 	    remove("lxdialog.scrltmp");
 	    return button;
diff --git a/scripts/lxdialog/msgbox.c b/scripts/lxdialog/msgbox.c
index 93692e1..a175532 100644
--- a/scripts/lxdialog/msgbox.c
+++ b/scripts/lxdialog/msgbox.c
@@ -73,13 +73,17 @@ dialog_msgbox (const char *title, const 
 
 	wrefresh (dialog);
 	while (key != ESC && key != '\n' && key != ' ' &&
-               key != 'O' && key != 'o' && key != 'X' && key != 'x')
+               key != 'O' && key != 'o' && key != 'X' && key != 'x' &&
+	       key != KEY_RESIZE) {
 	    key = wgetch (dialog);
+	    if (should_resize)
+		do_resize_dialog ();
+	}
     } else {
 	key = '\n';
 	wrefresh (dialog);
     }
 
     delwin (dialog);
-    return key == ESC ? -1 : 0;
+    return key == ESC ? -1 : key == KEY_RESIZE ? -2 : 0;
 }
diff --git a/scripts/lxdialog/textbox.c b/scripts/lxdialog/textbox.c
index ed23df2..dd4d985 100644
--- a/scripts/lxdialog/textbox.c
+++ b/scripts/lxdialog/textbox.c
@@ -133,7 +133,13 @@ dialog_textbox (const char *title, const
 
     while ((key != ESC) && (key != '\n')) {
 	key = wgetch (dialog);
+
+	if (should_resize) {
+	    do_resize_dialog();
+	}
+
 	switch (key) {
+	case KEY_RESIZE:
 	case 'E':		/* Exit */
 	case 'e':
 	case 'X':
@@ -141,7 +147,7 @@ dialog_textbox (const char *title, const
 	    delwin (dialog);
 	    free (buf);
 	    close (fd);
-	    return 0;
+	    return key == KEY_RESIZE ? -2 : 0;
 	case 'g':		/* First page */
 	case KEY_HOME:
 	    if (!begin_reached) {
diff --git a/scripts/lxdialog/util.c b/scripts/lxdialog/util.c
index e7bce9b..37dffdd 100644
--- a/scripts/lxdialog/util.c
+++ b/scripts/lxdialog/util.c
@@ -19,13 +19,16 @@
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <sys/ioctl.h>
+
 #include "dialog.h"
 
 
 /* use colors by default? */
 bool use_colors = 1;
+int rows = 0, cols = 0;
 
-const char *backtitle = NULL;
+char *backtitle = NULL;
 
 const char *dialog_result;
 
@@ -188,6 +191,63 @@ end_dialog (void)
 }
 
 
+void
+init_wsize()
+{
+	struct winsize ws;
+	char *env;
+
+	if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
+		rows = ws.ws_row;
+		cols = ws.ws_col;
+	}
+
+	if (!rows) {
+		env = getenv("LINES");
+		if (env)
+			rows = atoi(env);
+		if (!rows)
+			rows = 24;
+	}
+	if (!cols) {
+		env = getenv("COLUMNS");
+		if (env)
+			cols = atoi(env);
+		if (!cols)
+			cols = 80;
+	}
+
+	if (rows < 19 || cols < 80) {
+		end_dialog();
+		fprintf(stderr, "Your display is too small to run Menuconfig!\n");
+		fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
+		exit(1);
+	}
+
+	rows -= 4;
+	cols -= 5;
+}
+
+volatile bool should_resize = 0;
+
+void
+resize_dialog ()
+{
+    should_resize = 1;
+}
+
+void
+do_resize_dialog ()
+{
+    should_resize = 0;
+    init_wsize();
+    resizeterm(rows + 4, cols + 5);
+    LINES = rows + 4;
+    COLS = cols + 5;
+    ungetch(KEY_RESIZE);
+}
+
+
 /*
  * 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. Newline
diff --git a/scripts/lxdialog/yesno.c b/scripts/lxdialog/yesno.c
index 11fcc25..af59fe2 100644
--- a/scripts/lxdialog/yesno.c
+++ b/scripts/lxdialog/yesno.c
@@ -85,6 +85,10 @@ dialog_yesno (const char *title, const c
 
     while (key != ESC) {
 	key = wgetch (dialog);
+
+	if (should_resize)
+	    do_resize_dialog();
+
 	switch (key) {
 	case 'Y':
 	case 'y':
@@ -104,6 +108,8 @@ dialog_yesno (const char *title, const c
 	    print_buttons(dialog, height, width, button);
 	    wrefresh (dialog);
 	    break;
+	case KEY_RESIZE:
+	    button = -2;
 	case ' ':
 	case '\n':
 	    delwin (dialog);

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Kurt Wall]

On Sunday 11 December 2005 07:46 pm, Petr Baudis wrote:
> After three years, the zombie walks again!  This patch (against the latest
> git tree) cleans up interaction between kconfig's mconf (menuconfig
> frontend) and lxdialog. Its commandline interface disappears in this patch,
> instead a .so is packed from the lxdialog objects and the relevant
> functions are called directly from mconf.

> @@ -808,18 +684,22 @@ static void conf(struct menu *menu)
>     }
>     break;
>    case 4:
> -   if (type == 't')
> +   if (active_type == 't')
>      sym_set_tristate_value(sym, no);
>     break;
>    case 5:
> -   if (type == 't')
> +   if (active_type == 't')
>      sym_set_tristate_value(sym, mod);
>     break;
>    case 6:
> -   if (type == 't')
> +   if (active_type == 't') {
>      sym_toggle_tristate_value(sym);
> -   else if (type == 'm')
> -    conf(submenu);
> +   } else if (active_type == 'm') {
> +    if (single_menu_mode)
> +     submenu->data = (void *) !submenu->data;

Shouldn't this be:
     submenu->data = (void *) (long) !submenu->data;

> +    else
> +     conf(submenu);
> +   }
>     break;
>    case 7:
>     search_conf();

Kurt
-- 
The light at the end of the tunnel is the headlight of an approaching
train.

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Petr Baudis]

Dear diary, on Mon, Dec 12, 2005 at 04:18:26AM CET, I got a letter
where Kurt Wall <kwallinator@gmail.com> said that...
> On Sunday 11 December 2005 07:46 pm, Petr Baudis wrote:
> > After three years, the zombie walks again!  This patch (against the latest
> > git tree) cleans up interaction between kconfig's mconf (menuconfig
> > frontend) and lxdialog. Its commandline interface disappears in this patch,
> > instead a .so is packed from the lxdialog objects and the relevant
> > functions are called directly from mconf.
> 
> > @@ -808,18 +684,22 @@ static void conf(struct menu *menu)
> >     }
> >     break;
> >    case 4:
> > -   if (type == 't')
> > +   if (active_type == 't')
> >      sym_set_tristate_value(sym, no);
> >     break;
> >    case 5:
> > -   if (type == 't')
> > +   if (active_type == 't')
> >      sym_set_tristate_value(sym, mod);
> >     break;
> >    case 6:
> > -   if (type == 't')
> > +   if (active_type == 't') {
> >      sym_toggle_tristate_value(sym);
> > -   else if (type == 'm')
> > -    conf(submenu);
> > +   } else if (active_type == 'm') {
> > +    if (single_menu_mode)
> > +     submenu->data = (void *) !submenu->data;
> 
> Shouldn't this be:
>      submenu->data = (void *) (long) !submenu->data;

You are right, it should be so at least for consistency - it'll be fixed
in the next resend of the patch. I can't see why is it needed, though -
shouldn't the int be padded to void* anyway?

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
VI has two modes: the one in which it beeps and the one in which
it doesn't.

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Kurt Wall]

On Monday 12 December 2005 06:20 am, Petr Baudis wrote:
> Dear diary, on Mon, Dec 12, 2005 at 04:18:26AM CET, I got a letter
> where Kurt Wall <kwallinator@gmail.com> said that...
>

[...]

> > > +     submenu->data = (void *) !submenu->data;
> >
> > Shouldn't this be:
> >      submenu->data = (void *) (long) !submenu->data;
>
> You are right, it should be so at least for consistency - it'll be fixed
> in the next resend of the patch. I can't see why is it needed, though -
> shouldn't the int be padded to void* anyway?

The cast to long quiets a warning from gcc. Without the cast, it
complains:

$ make menuconfig
  HOSTCC  scripts/kconfig/mconf.o
scripts/kconfig/mconf.c: In function `conf':
scripts/kconfig/mconf.c:699: warning: cast to pointer from integer of 
different size
  HOSTLD  scripts/kconfig/mconf
scripts/kconfig/mconf arch/x86_64/Kconfig

I like the changes, though -- menuconfig is much snappier and easier on
the eyes without the nasty flashing.

Kurt
-- 
"I'd love to go out with you, but it's my parakeet's bowling night."

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Roman Zippel]

Hi,

On Mon, 12 Dec 2005, Petr Baudis wrote:

> In practice, this means that drawing on the screen is done with _MUCH_
> less overhead now, the screen updates are better optimalized as ncurses
> won't get reset everytime you display something, that also implies that
> the ugly screen flickering is done. As a cute side-effect, the dialogs
> are now rendered on the top of the menu or help panel.  In the future,
> this also gives us much more freedom for enhancing the user interface.

At least in the first version I'd prefer not to do draw the dialogs over 
each other. It's just weird if a string dialog pops up over the help text.
In the next version we should add some infrastructure to properly layer 
windows on top of other (and should also help with resizing).

> Compared to the previous version (from February 2003), this one should be
> less buggy (especially wrt. the escape character handling), should not
> crash while resizing and the resizing should have immediate effect
> (although things can still start looking ugly when you are resizing while
> not in a menu - to fix that properly, more liblxdialog integration is
> required). Also, the code is considerably simplified on few places.

The <esc><esc> as described in mconf.c still produces two exits, which is 
a little annoying if one is used to it. I don't know how easy it is to 
supress that second <esc>.

Otherwise it looks good. Regarding merging please coordinate with Sam and 
if you move it, I'd prefer to keep it in a subdirectory, e.g. just "mv 
scripts/lxdialog scripts/kconfig/lxdialog".

bye, Roman

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Sam Ravnborg]

On Wed, Dec 14, 2005 at 11:18:32PM +0100, Roman Zippel wrote:
> 
> > Compared to the previous version (from February 2003), this one should be
> > less buggy (especially wrt. the escape character handling), should not
> > crash while resizing and the resizing should have immediate effect
> > (although things can still start looking ugly when you are resizing while
> > not in a menu - to fix that properly, more liblxdialog integration is
> > required). Also, the code is considerably simplified on few places.
> 
> The <esc><esc> as described in mconf.c still produces two exits, which is 
> a little annoying if one is used to it. I don't know how easy it is to 
> supress that second <esc>.
The <esc><esc> behaviour is just illogical and to let it die cannot
hurt much. We create a more logical interface but yes, some users will
be irritated only due to the change.

	Sam

Re: [PATCH 3/3] [kconfig] Direct use of lxdialog routines by menuconfig

[Jesper Juhl]

On 12/12/05, Petr Baudis <pasky@suse.cz> wrote:
> After three years, the zombie walks again!  This patch (against the latest
> git tree) cleans up interaction between kconfig's mconf (menuconfig
> frontend) and lxdialog. Its commandline interface disappears in this patch,
> instead a .so is packed from the lxdialog objects and the relevant
> functions are called directly from mconf.
>
> In practice, this means that drawing on the screen is done with _MUCH_
> less overhead now, the screen updates are better optimalized as ncurses
> won't get reset everytime you display something, that also implies that
> the ugly screen flickering is done. As a cute side-effect, the dialogs
> are now rendered on the top of the menu or help panel.  In the future,
> this also gives us much more freedom for enhancing the user interface.
>
> This opens space for plenty of cleanups of liblxdialog, removal of
> superfluous stuff and temporary files usage, etc.
>
> Compared to the previous version (from February 2003), this one should be
> less buggy (especially wrt. the escape character handling), should not
> crash while resizing and the resizing should have immediate effect
> (although things can still start looking ugly when you are resizing while
> not in a menu - to fix that properly, more liblxdialog integration is
> required). Also, the code is considerably simplified on few places.
>
> Signed-off-by: Petr Baudis <pasky@suse.cz>

I just gave it a very quick spin and I like it. Very nice.

It's definately a lot snappier, nice work.

--
Jesper Juhl <jesper.juhl@gmail.com>
Don't top-post  http://www.catb.org/~esr/jargon/html/T/top-post.html
Plain text mails only, please      http://www.expita.com/nomime.html

Re: [PATCH 0/3] Link lxdialog with mconf directly

[Sam Ravnborg]

On Mon, Dec 12, 2005 at 01:41:59AM +0100, Petr Baudis wrote:
>   The following series revives one three years old patch, turning lxdialog
> to a library and linking it directly to mconf, making menuconfig nicer and
> things in general quite simpler and cleaner.
> 
>   The first two patches make slight adjustements to kbuild in order to make
> liblxdialog possible. The third patch does the libification itself and
> appropriate modifications to mconf.c.

Why not just copy over relevant files to scripts/kconfig?
Then no playing tricks with libaries etc. is needed, and everythings
just works.

It is only 8 files and prefixing them with lx* would make them
stand out compared to the rest. It is not like there is any user planned
for the lxdialog functionality in the kernel, and kconfig users outside
the kernel I beleive copy lxdialog with rest of kconfig files.

Btw. the work you are doing are clashing with a general cleanup effort
of lxdialog I have in -mm at the moment.
I received only very limited feedback = looks ok.
Integrating principles from your old patch was on my TODO list.

I have something in the works that uses linked list instead of a
preallocated array, to keep the dynamic behaviour. I will probarly make
a version with the linked list approach but otherwise use your changes
to mconf.c. But it will take a few days until I get to it.

	Sam

Re: [PATCH 0/3] Link lxdialog with mconf directly

[Petr Baudis]

Dear diary, on Mon, Dec 12, 2005 at 08:14:22PM CET, I got a letter
where Sam Ravnborg <sam@ravnborg.org> said that...
> On Mon, Dec 12, 2005 at 01:41:59AM +0100, Petr Baudis wrote:
> >   The following series revives one three years old patch, turning lxdialog
> > to a library and linking it directly to mconf, making menuconfig nicer and
> > things in general quite simpler and cleaner.
> > 
> >   The first two patches make slight adjustements to kbuild in order to make
> > liblxdialog possible. The third patch does the libification itself and
> > appropriate modifications to mconf.c.
> 
> Why not just copy over relevant files to scripts/kconfig?
> Then no playing tricks with libaries etc. is needed, and everythings
> just works.
> 
> It is only 8 files and prefixing them with lx* would make them
> stand out compared to the rest. It is not like there is any user planned
> for the lxdialog functionality in the kernel, and kconfig users outside
> the kernel I beleive copy lxdialog with rest of kconfig files.

Ok. I didn't want to pollute scripts/kconfig/ too much, but if it's ok
by you, I can do it that way. I will submit another series later in the
evening.

> Btw. the work you are doing are clashing with a general cleanup effort
> of lxdialog I have in -mm at the moment.
> I received only very limited feedback = looks ok.
> Integrating principles from your old patch was on my TODO list.

Do you mean the series you posted at Nov 21? Should I just rebase my
patches on top of that?

FWIW, the changes there look fine to me. I actually wanted to change the
indentation of the menus as well; it looks horrible especially in the
singlemenu mode.

> I have something in the works that uses linked list instead of a
> preallocated array, to keep the dynamic behaviour. I will probarly make
> a version with the linked list approach but otherwise use your changes
> to mconf.c. But it will take a few days until I get to it.

I can do it and include it in the updated series.

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
VI has two modes: the one in which it beeps and the one in which
it doesn't.

Re: [PATCH 0/3] Link lxdialog with mconf directly

[Sam Ravnborg]

On Mon, Dec 12, 2005 at 09:08:17PM +0100, Petr Baudis wrote:
> > It is only 8 files and prefixing them with lx* would make them
> > stand out compared to the rest. It is not like there is any user planned
> > for the lxdialog functionality in the kernel, and kconfig users outside
> > the kernel I beleive copy lxdialog with rest of kconfig files.
> 
> Ok. I didn't want to pollute scripts/kconfig/ too much, but if it's ok
> by you, I can do it that way. I will submit another series later in the
> evening.
In the end this is Roman's call, not mine.
Keeping the lxdialog functionality close to the users though makes
total sense. We do not have to take special care of dependencies etc.
> 
> > Btw. the work you are doing are clashing with a general cleanup effort
> > of lxdialog I have in -mm at the moment.
> > I received only very limited feedback = looks ok.
> > Integrating principles from your old patch was on my TODO list.
> 
> Do you mean the series you posted at Nov 21? Should I just rebase my
> patches on top of that?
Please do so. I did not post the biggest one where I Lindented all of
lxdialog, but they are all in
git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild.git

> FWIW, the changes there look fine to me. I actually wanted to change the
> indentation of the menus as well; it looks horrible especially in the
> singlemenu mode.
> 
> > I have something in the works that uses linked list instead of a
> > preallocated array, to keep the dynamic behaviour. I will probarly make
> > a version with the linked list approach but otherwise use your changes
> > to mconf.c. But it will take a few days until I get to it.
> 
> I can do it and include it in the updated series.
Would be perfect!

I will then do a proper review of next round of patches.

	Sam

Re: [PATCH 0/3] Link lxdialog with mconf directly

[Sam Ravnborg]

On Mon, Dec 12, 2005 at 09:08:17PM +0100, Petr Baudis wrote:
> 
> Ok. I didn't want to pollute scripts/kconfig/ too much, but if it's ok
> by you, I can do it that way. I will submit another series later in the
> evening.

I've just done the renaming and relevant updates.
So you will deal with much smaller patches.

My kbuild tree is updated with the changes and will soon mirror out.

	Sam