[PATCH] [kconfig] Direct use of lxdialog routines by menuconfig (resent,v2)

From: Petr Baudis (pasky@ucw.cz)
Date: Sat Nov 23 2002 - 04:50:40 EST


  Hello,

  this patch (against 2.5.49) cleans up interaction between kconfig's mconf
(menuconfig frontend) and lxdialog. Its commandline interface (called
imaginatively lxdialog) no longer exists, instead a huge .o 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 (we can still do better, maybe I will make few more patches in
future; the difference won't be very big anymore though, I suppose), the screen
updates are better optimalized as ncurses aren't 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.

  It appears to work fine for me, and the change should cause overall
improvement of the configuration process. Please apply.

 Makefile | 7
 scripts/kconfig/Makefile | 3
 scripts/kconfig/mconf.c | 376 ++++++++++++++-----------------------------
 scripts/lxdialog/Makefile | 23 ++
 scripts/lxdialog/checklist.c | 34 +--
 scripts/lxdialog/dialog.h | 28 ++-
 scripts/lxdialog/lxdialog.c | 226 -------------------------
 scripts/lxdialog/menubox.c | 59 ++----
 scripts/lxdialog/textbox.c | 2
 scripts/lxdialog/util.c | 18 +-
 10 files changed, 232 insertions(+), 544 deletions(-)

  Note that this is a progeny of the previous (already ancient)
kconfig_lxso_mconf.patch - this one actually creates an .o, not a .so, thus it
doesn't need any kbuild modifications (altough I'm a little anxious from the
hacks I had to do).

  Note also that this is the third resubmission of the patch. There are no
changes between 2.5.48 and 2.5.49 in this part of kernel, thus there are no
changes in this patch as well.

  Kind regards,
                                Petr Baudis

--- linux/Makefile Thu Nov 14 19:03:20 2002
+++ linux+pasky/Makefile Thu Nov 14 21:55:26 2002
@@ -641,8 +641,7 @@
 xconfig: scripts/kconfig/qconf
         ./scripts/kconfig/qconf arch/$(ARCH)/Kconfig
 
-menuconfig: scripts/kconfig/mconf
- $(Q)$(MAKE) -f scripts/Makefile.build obj=scripts lxdialog
+menuconfig: scripts/lxdialog/built-in.o scripts/kconfig/mconf
         ./scripts/kconfig/mconf arch/$(ARCH)/Kconfig
 
 config: scripts/kconfig/conf
@@ -665,6 +664,10 @@
 
 defconfig: scripts/kconfig/conf
         ./scripts/kconfig/conf -d arch/$(ARCH)/Kconfig
+
+scripts/lxdialog/built-in.o: FORCE
+ $(Q)$(MAKE) -f scripts/Makefile.build obj=scripts lxdialog
+
 
 ###
 # Cleaning is done on three levels.
diff -ru linux/scripts/kconfig/Makefile linux+pasky/scripts/kconfig/Makefile
--- linux/scripts/kconfig/Makefile Wed Nov 6 21:49:55 2002
+++ linux+pasky/scripts/kconfig/Makefile Thu Nov 14 21:44:41 2002
@@ -27,6 +27,9 @@
 HOSTCFLAGS_lex.zconf.o := -I$(src)
 HOSTCFLAGS_zconf.tab.o := -I$(src)
 
+# See scripts/lxdialog/Makefile header for reason of this:
+HOSTLOADLIBES_mconf = $(obj)/../lxdialog/built-in.o -lncurses
+
 HOSTLOADLIBES_qconf = -L$(QTDIR)/lib -Wl,-rpath,$(QTDIR)/lib -l$(QTLIB) -ldl
 HOSTCXXFLAGS_qconf.o = -I$(QTDIR)/include
 
diff -ru linux/scripts/kconfig/mconf.c linux+pasky/scripts/kconfig/mconf.c
--- linux/scripts/kconfig/mconf.c Thu Nov 14 19:03:45 2002
+++ linux+pasky/scripts/kconfig/mconf.c Thu Nov 14 20:43:59 2002
@@ -4,6 +4,9 @@
  *
  * Introduced single menu mode (show all sub-menus in one large tree).
  * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * Directly use liblxdialog library routines.
+ * 2002-11-14 Petr Baudis <pasky@ucw.cz>
  */
 
 #include <sys/ioctl.h>
@@ -19,10 +22,11 @@
 #include <termios.h>
 #include <unistd.h>
 
+#include "../lxdialog/dialog.h"
+
 #define LKC_DIRECT_LINK
 #include "lkc.h"
 
-static char menu_backtitle[128];
 static const char menu_instructions[] =
         "Arrow keys navigate the menu. "
         "<Enter> selects submenus --->. "
@@ -81,18 +85,17 @@
         "leave this blank.\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 = 0;
 static struct termios ios_org;
 static int rows, cols;
 static struct menu *current_menu;
 static int child_count;
-static int do_resize;
 static int single_menu_mode;
 
+struct dialog_list_item *items[16384]; /* FIXME: This ought to be dynamic. */
+int item_no;
+
 static void conf(struct menu *menu);
 static void conf_choice(struct menu *menu);
 static void conf_string(struct menu *menu);
@@ -103,11 +106,6 @@
 static void show_help(struct menu *menu);
 static void show_readme(void);
 
-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;
@@ -130,135 +128,63 @@
         cols -= 5;
 }
 
-static void cprint_init(void)
+static void cinit(void)
+{
+ item_no = 0;
+}
+
+static void cmake(void)
 {
- bufptr = buf;
- argptr = args;
- memset(args, 0, sizeof(args));
- indent = 0;
- child_count = 0;
- cprint("./scripts/lxdialog/lxdialog");
- cprint("--backtitle");
- cprint(menu_backtitle);
+ items[item_no] = malloc(sizeof(struct dialog_list_item));
+ memset(items[item_no], 0, sizeof(struct dialog_list_item));
+ items[item_no]->tag = malloc(32); items[item_no]->tag[0] = 0;
+ items[item_no]->name = malloc(512); items[item_no]->name[0] = 0;
+ items[item_no]->namelen = 0;
+ item_no++;
 }
 
-static int cprint1(const char *fmt, ...)
+static int cprint_name(const char *fmt, ...)
 {
         va_list ap;
         int res;
 
- if (!*argptr)
- *argptr = bufptr;
+ if (!item_no)
+ cmake();
         va_start(ap, fmt);
- res = vsprintf(bufptr, fmt, ap);
+ res = vsnprintf(items[item_no - 1]->name + items[item_no - 1]->namelen,
+ 512 - items[item_no - 1]->namelen, fmt, ap);
+ if (res > 0)
+ items[item_no - 1]->namelen += res;
         va_end(ap);
- bufptr += res;
 
         return res;
 }
 
-static void cprint_done(void)
-{
- *bufptr++ = 0;
- argptr++;
-}
-
-static int cprint(const char *fmt, ...)
+static int cprint_tag(const char *fmt, ...)
 {
         va_list ap;
         int res;
 
- *argptr++ = bufptr;
+ if (!item_no)
+ cmake();
         va_start(ap, fmt);
- res = vsprintf(bufptr, fmt, ap);
+ res = vsnprintf(items[item_no - 1]->tag, 32, fmt, ap);
         va_end(ap);
- bufptr += res;
- *bufptr++ = 0;
 
         return res;
 }
 
-pid_t pid;
-
-static void winch_handler(int sig)
+static void cdone(void)
 {
- if (!do_resize) {
- kill(pid, SIGINT);
- do_resize = 1;
- }
-}
+ int i;
 
-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);
+ for (i = 0; i < item_no; i++) {
+ free(items[i]->tag);
+ free(items[i]->name);
+ free(items[i]);
         }
- sigprocmask(SIG_SETMASK, &osset, NULL);
 
- return WEXITSTATUS(stat);
+ item_no = 0;
 }
 
 static void build_conf(struct menu *menu)
@@ -281,27 +207,28 @@
                         switch (prop->type) {
                         case P_MENU:
                                 child_count++;
- cprint("m%p", menu);
+ cmake();
+ cprint_tag("m%p", menu);
 
                                 if (single_menu_mode) {
- cprint1("%s%*c%s",
+ cprint_name("%s%*c%s",
                                                 menu->data ? "-->" : "++>",
                                                 indent + 1, ' ', prompt);
                                 } else {
                                         if (menu->parent != &rootmenu)
- cprint1(" %*c", indent + 1, ' ');
- cprint1("%s --->", prompt);
+ cprint_name(" %*c", indent + 1, ' ');
+ cprint_name("%s --->", 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();
+ cprint_tag(":%p", menu);
+ cprint_name("---%*c%s", indent + 1, ' ', prompt);
                                 }
                         }
                 } else
@@ -309,6 +236,7 @@
                 goto conf_childs;
         }
 
+ cmake();
         type = sym_get_type(sym);
         if (sym_is_choice(sym)) {
                 struct symbol *def_sym = sym_get_choice_value(sym);
@@ -322,10 +250,10 @@
 
                 val = sym_get_tristate_value(sym);
                 if (sym_is_changable(sym)) {
- cprint("t%p", menu);
+ cprint_tag("t%p", menu);
                         switch (type) {
                         case S_BOOLEAN:
- cprint1("[%c]", val == no ? ' ' : '*');
+ cprint_name("[%c]", val == no ? ' ' : '*');
                                 break;
                         case S_TRISTATE:
                                 switch (val) {
@@ -333,66 +261,61 @@
                                 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(" ");
+ cprint_tag("%c%p", 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 {
                 child_count++;
                 val = sym_get_tristate_value(sym);
                 if (sym_is_choice_value(sym) && val == yes) {
- cprint(":%p", menu);
- cprint1(" ");
+ cprint_tag(":%p", menu);
+ cprint_name(" ");
                 } else {
                         switch (type) {
                         case S_BOOLEAN:
- cprint("t%p", menu);
- cprint1("[%c]", val == no ? ' ' : '*');
+ cprint_tag("t%p", menu);
+ cprint_name("[%c]", val == no ? ' ' : '*');
                                 break;
                         case S_TRISTATE:
- cprint("t%p", menu);
+ cprint_tag("t%p", menu);
                                 switch (val) {
                                 case yes: ch = '*'; break;
                                 case mod: ch = 'M'; break;
                                 default: ch = ' '; break;
                                 }
- cprint1("<%c>", ch);
+ cprint_name("<%c>", ch);
                                 break;
                         default:
- cprint("s%p", menu);
- tmp = cprint1("(%s)", sym_get_string_value(sym));
+ cprint_tag("s%p", 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) ? "" : " (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) ? "" : " (NEW)");
- cprint_done();
         }
 
 conf_childs:
@@ -404,57 +327,52 @@
 
 static void conf(struct menu *menu)
 {
+ struct dialog_list_item *active_item = NULL;
         struct menu *submenu;
         const char *prompt = menu_get_prompt(menu);
         struct symbol *sym;
         char active_entry[40];
- int stat, type, i;
+ int stat, type;
 
         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;
+ cdone(); cinit();
                 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");
- }
- stat = exec_conf();
+ cmake(); cprint_tag(":"); cprint_name("--- ");
+ cmake(); cprint_tag("L"); cprint_name("Load an Alternate Configuration File");
+ cmake(); cprint_tag("S"); cprint_name("Save Configuration to an Alternate File");
+ }
+ dialog_clear();
+ stat = dialog_menu(prompt ? prompt : "Main Menu",
+ menu_instructions, rows, cols, rows - 10,
+ active_entry, item_no, items);
                 if (stat < 0)
                         continue;
 
                 if (stat == 1 || stat == 255)
                         break;
 
- type = input_buf[0];
+ active_item = first_sel_item(item_no, items);
+ if (!active_item)
+ continue;
+ active_item->selected = 0;
+ strncpy(active_entry, active_item->tag, sizeof(active_entry));
+ active_entry[sizeof(active_entry)-1] = 0;
+ type = active_entry[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);
-
                 sym = NULL;
                 submenu = NULL;
- if (sscanf(input_buf + 1, "%p", &submenu) == 1)
+ if (sscanf(active_entry + 1, "%p", &submenu) == 1)
                         sym = submenu->sym;
 
                 switch (stat) {
@@ -520,17 +438,8 @@
         fd = creat(".help.tmp", 0777);
         write(fd, text, strlen(text));
         close(fd);
- do {
- cprint_init();
- if (title) {
- cprint("--title");
- cprint("%s", title);
- }
- cprint("--textbox");
- cprint(".help.tmp");
- cprint("%d", r);
- cprint("%d", c);
- } while (exec_conf() < 0);
+ while (dialog_textbox(title, ".help.tmp", r, c) < 0)
+ ;
         unlink(".help.tmp");
 }
 
@@ -559,13 +468,8 @@
 
 static void show_readme(void)
 {
- do {
- cprint_init();
- cprint("--textbox");
- cprint("scripts/README.Menuconfig");
- cprint("%d", rows);
- cprint("%d", cols);
- } while (exec_conf() == -1);
+ while (dialog_textbox(NULL, "scripts/README.Menuconfig", rows, cols) < 0)
+ ;
 }
 
 static void conf_choice(struct menu *menu)
@@ -573,32 +477,25 @@
         const char *prompt = menu_get_prompt(menu);
         struct menu *child;
         struct symbol *active;
- int stat;
 
         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;
                 active = sym_get_choice_value(menu->sym);
+ cdone(); cinit();
                 for (child = menu->list; child; child = child->next) {
                         if (!menu_is_visible(child))
                                 continue;
- cprint("%p", child);
- cprint("%s", menu_get_prompt(child));
- cprint(child->sym == active ? "ON" : "OFF");
+ cmake();
+ cprint_tag("%p", child);
+ cprint_name("%s", menu_get_prompt(child));
+ items[item_no - 1]->selected = (child->sym == active);
                 }
 
- stat = exec_conf();
- switch (stat) {
+ switch (dialog_checklist(prompt ? prompt : "Main Menu",
+ radiolist_instructions, 15, 70, 6,
+ item_no, items, FLAG_RADIO)) {
                 case 0:
- if (sscanf(input_buf, "%p", &menu) != 1)
+ if (sscanf(first_sel_item(item_no, items)->tag, "%p", &menu) != 1)
                                 break;
                         sym_set_tristate_value(menu->sym, yes);
                         return;
@@ -614,33 +511,30 @@
 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 = (char *) inputbox_instructions_int;
                         break;
                 case S_HEX:
- cprint(inputbox_instructions_hex);
+ heading = (char *) inputbox_instructions_hex;
                         break;
                 case S_STRING:
- cprint(inputbox_instructions_string);
+ heading = (char *) 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 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;
@@ -655,21 +549,13 @@
 
 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 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;
@@ -684,21 +570,13 @@
 
 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 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;
@@ -727,9 +605,10 @@
         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");
@@ -741,16 +620,15 @@
         tcgetattr(1, &ios_org);
         atexit(conf_cleanup);
         init_wsize();
+ init_dialog();
         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) {
                 conf_write(NULL);
diff -ru linux/scripts/lxdialog/Makefile linux+pasky/scripts/lxdialog/Makefile
--- linux/scripts/lxdialog/Makefile Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/Makefile Thu Nov 14 21:42:41 2002
@@ -1,3 +1,17 @@
+# A little excursion to the grand scheme of the 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 against mconf
+# directly. This is a little hackish, though - we want to make up a variation
+# to the "static library" theme for lxdialog, and we have to use standart
+# kbuild tools for that; these are tuned for in-kernel use, though, thus we
+# need to do some flags swaps etc. The resulting object, built-in.o, is then
+# linked against mconf.o inside of scripts/kconfig/Makefile. Also, mconf is
+# linked against ncurses _THERE_, regardless to what you see here in
+# HOST_LOADLIBES; here we merely check for ncurses presence.
+#
+# 2002-11-14 Petr Baudis <pasky@ucw.cz>
+
 HOST_EXTRACFLAGS := -DLOCALE
 HOST_LOADLIBES := -lncurses
 
@@ -15,12 +29,13 @@
 endif
 endif
 
-host-progs := lxdialog
 
-lxdialog-objs := checklist.o menubox.o textbox.o yesno.o inputbox.o \
- util.o lxdialog.o msgbox.o
+# Replace kernel CFLAGS with host CFLAGS, which is what we want in fact.
+CFLAGS := $(HOSTCFLAGS) $(HOST_EXTRACFLAGS)
+NOSTDINC_FLAGS :=
+
+obj-y := checklist.o menubox.o textbox.o yesno.o inputbox.o util.o msgbox.o
 
-EXTRA_TARGETS := lxdialog
 
 first_rule: ncurses
 
diff -ru linux/scripts/lxdialog/checklist.c linux+pasky/scripts/lxdialog/checklist.c
--- linux/scripts/lxdialog/checklist.c Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/checklist.c Thu Nov 14 20:11:16 2002
@@ -118,7 +118,8 @@
  */
 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 list_height, int item_no, struct dialog_list_item ** items,
+ int flag)
         
 {
     int i, x, y, box_x, box_y;
@@ -137,7 +138,7 @@
 
     /* Initializes status */
     for (i = 0; i < item_no; i++) {
- status[i] = !strcasecmp (items[i * 3 + 2], "on");
+ status[i] = items[i]->selected;
         if (!choice && status[i])
             choice = i;
     }
@@ -195,7 +196,7 @@
     /* 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);
+ check_x = MAX (check_x, + strlen (items[i]->name) + 4);
 
     check_x = (list_width - check_x) / 2;
     item_x = check_x + 4;
@@ -207,7 +208,7 @@
 
     /* 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);
     }
 
@@ -224,7 +225,7 @@
         key = wgetch (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;
 
 
@@ -237,14 +238,14 @@
                     /* 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);
 
@@ -263,7 +264,7 @@
                     /* 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);
@@ -271,7 +272,7 @@
                         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);
@@ -287,11 +288,11 @@
             }
             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);
@@ -330,7 +331,7 @@
                             status[i] = 0;
                         status[scroll + choice] = 1;
                         for (i = 0; i < max_choice; i++)
- print_item (list, items[(scroll + i) * 3 + 1],
+ print_item (list, items[scroll + i]->name,
                                         status[scroll + i], i, i == choice);
                     }
                 }
@@ -338,14 +339,7 @@
                 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]);
- }
-
- }
+ items[i]->selected = status[i];
                 }
             }
             delwin (dialog);
diff -ru linux/scripts/lxdialog/dialog.h linux+pasky/scripts/lxdialog/dialog.h
--- linux/scripts/lxdialog/dialog.h Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/dialog.h Thu Nov 14 20:11:16 2002
@@ -26,6 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef CURSES_LOC
 #include CURSES_LOC
 
 /*
@@ -125,29 +126,35 @@
  * Global variables
  */
 extern bool use_colors;
-extern bool use_shadow;
 
 extern chtype attributes[];
+#endif
+
+extern char *backtitle;
 
-extern const char *backtitle;
+struct dialog_list_item {
+ char *name;
+ int namelen;
+ char *tag;
+ int selected; /* Set to 1 by dialog_*() function. */
+};
 
 /*
  * 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 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);
 int dialog_yesno (const char *title, const char *prompt, int height, int width);
@@ -156,14 +163,17 @@
 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);
+ struct dialog_list_item ** 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);
+ struct dialog_list_item ** items, int flag);
 extern unsigned char dialog_input_result[];
 int dialog_inputbox (const char *title, const char *prompt, int height,
                 int width, const char *init);
 
+struct dialog_list_item *first_sel_item(int item_no,
+ struct dialog_list_item ** items);
+
 /*
  * This is the base for fictitious keys, which activate
  * the buttons.
@@ -173,7 +183,9 @@
  * -- 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)
+#endif
 
 
 /*
diff -ru linux/scripts/lxdialog/menubox.c linux+pasky/scripts/lxdialog/menubox.c
--- linux/scripts/lxdialog/menubox.c Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/menubox.c Thu Nov 14 20:11:16 2002
@@ -93,7 +93,7 @@
     }
     if (selected) {
         wmove (win, choice, item_x+1);
- wrefresh (win);
+ wnoutrefresh (win);
     }
 }
 
@@ -165,8 +165,7 @@
 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)
-
+ 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;
@@ -230,8 +229,8 @@
      */
     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;
+ item_x = MAX (item_x, MIN(menu_width, strlen (items[i]->name) + 2));
+ if (strcmp(current, items[i]->tag) == 0) choice = i;
     }
 
     item_x = (menu_width - item_x) / 2;
@@ -261,8 +260,8 @@
 
     /* 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]->tag[0] != ':'));
     }
 
     wnoutrefresh (menu);
@@ -283,14 +282,14 @@
                 i = max_choice;
         else {
         for (i = choice+1; i < max_choice; i++) {
- j = first_alpha(items[(scroll+i)*2+1], "YyNnMm>");
- if (key == tolower(items[(scroll+i)*2+1][j]))
+ j = first_alpha(items[scroll + i]->name, "YyNnMm>");
+ 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], "YyNnMm>");
- if (key == tolower(items[(scroll+i)*2+1][j]))
+ j = first_alpha(items[scroll + i]->name, "YyNnMm>");
+ if (key == tolower(items[scroll + i]->name[j]))
                                 break;
                 }
         }
@@ -300,8 +299,8 @@
             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]->tag[0] != ':'));
 
             if (key == KEY_UP || key == '-') {
                 if (choice < 2 && scroll) {
@@ -312,15 +311,15 @@
 
                     scroll--;
 
- print_item (menu, items[scroll * 2 + 1], 0, FALSE,
- (items[scroll*2][0] != ':'));
+ print_item (menu, items[scroll * 2]->name, 0, FALSE,
+ (items[scroll * 2]->tag[0] != ':'));
                 } 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]->tag[0] != ':'));
 
                 if ((choice > max_choice-3) &&
                     (scroll + max_choice < item_no)
@@ -332,9 +331,9 @@
 
                     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]->tag[0] != ':'));
                 } else
                     choice = MIN(choice+1, max_choice-1);
 
@@ -344,8 +343,8 @@
                     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 * 2]->name, 0, FALSE,
+ (items[scroll * 2]->tag[0] != ':'));
                     } else {
                         if (choice > 0)
                             choice--;
@@ -360,9 +359,9 @@
                         scroll(menu);
                         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]->tag[0] != ':'));
                     } else {
                         if (choice+1 < max_choice)
                             choice++;
@@ -372,8 +371,8 @@
             } 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]->tag[0] != ':'));
 
             print_arrows(dialog, item_no, scroll,
                          box_y, box_x+item_x+1, menu_height);
@@ -405,7 +404,7 @@
                 fclose(f);
             }
             delwin (dialog);
- fprintf(stderr, "%s\n", items[(scroll + choice) * 2]);
+ items[scroll + choice]->selected = 1;
             switch (key) {
             case 's': return 3;
             case 'y': return 3;
@@ -419,13 +418,7 @@
             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]);
+ items[scroll + choice]->selected = 1;
 
             remove("lxdialog.scrltmp");
             return button;
diff -ru linux/scripts/lxdialog/textbox.c linux+pasky/scripts/lxdialog/textbox.c
--- linux/scripts/lxdialog/textbox.c Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/textbox.c Thu Nov 14 20:11:16 2002
@@ -317,7 +317,7 @@
     delwin (dialog);
     free (buf);
     close (fd);
- return -1; /* ESC pressed */
+ return 1; /* ESC pressed */
 }
 
 /*
diff -ru linux/scripts/lxdialog/util.c linux+pasky/scripts/lxdialog/util.c
--- linux/scripts/lxdialog/util.c Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/util.c Thu Nov 14 20:11:16 2002
@@ -25,7 +25,7 @@
 /* use colors by default? */
 bool use_colors = 1;
 
-const char *backtitle = NULL;
+char *backtitle = NULL;
 
 const char *dialog_result;
 
@@ -356,4 +356,20 @@
         }
 
         return 0;
+}
+
+/*
+ * Get the first selected item in the dialog_list_item list.
+ */
+struct dialog_list_item *
+first_sel_item(int item_no, struct dialog_list_item ** items)
+{
+ int i;
+
+ for (i = 0; i < item_no; i++) {
+ if (items[i]->selected)
+ return items[i];
+ }
+
+ return NULL;
 }
diff -ruN linux/scripts/lxdialog/lxdialog.c linux+pasky/scripts/lxdialog/lxdialog.c
--- linux/scripts/lxdialog/lxdialog.c Wed Nov 6 21:50:00 2002
+++ linux+pasky/scripts/lxdialog/lxdialog.c Thu Jan 1 01:00:00 1970
@@ -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, clear_screen = 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 (clear_screen) { /* 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 {
- clear_screen = 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 (clear_screen) { /* 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);
-}
-
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Nov 23 2002 - 22:00:42 EST