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-rw-r--r--package/config/mconf.c713
1 files changed, 713 insertions, 0 deletions
diff --git a/package/config/mconf.c b/package/config/mconf.c
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+++ b/package/config/mconf.c
@@ -0,0 +1,713 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Introduced single menu mode (show all sub-menus in one large tree).
+ * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * Directly use liblxdialog library routines.
+ * 2002-11-14 Petr Baudis <pasky@ucw.cz>
+ */
+
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <sys/termios.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include "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 --->. "
+ "Highlighted letters are hotkeys. "
+ "Pressing <Y> selectes a feature, while <N> will exclude a feature. "
+ "Press <Esc><Esc> to exit, <?> for Help. "
+ "Legend: [*] feature is selected [ ] feature is excluded",
+radiolist_instructions[] =
+ "Use the arrow keys to navigate this window or "
+ "press the hotkey of the item you wish to select "
+ "followed by the <SPACE BAR>. "
+ "Press <?> for additional information about this option.",
+inputbox_instructions_int[] =
+ "Please enter a decimal value. "
+ "Fractions will not be accepted. "
+ "Use the <TAB> key to move from the input field to the buttons below it.",
+inputbox_instructions_hex[] =
+ "Please enter a hexadecimal value. "
+ "Use the <TAB> key to move from the input field to the buttons below it.",
+inputbox_instructions_string[] =
+ "Please enter a string value. "
+ "Use the <TAB> key to move from the input field to the buttons below it.",
+setmod_text[] =
+ "This feature depends on another which has been configured as a module.\n"
+ "As a result, this feature will be built as a module.",
+nohelp_text[] =
+ "There is no help available for this option.\n",
+load_config_text[] =
+ "Enter the name of the configuration file you wish to load. "
+ "Accept the name shown to restore the configuration you "
+ "last retrieved. Leave blank to abort.",
+load_config_help[] =
+ "\n"
+ "For various reasons, one may wish to keep several different Buildroot\n"
+ "configurations available on a single machine.\n"
+ "\n"
+ "If you have saved a previous configuration in a file other than the\n"
+ "Buildroot's default, entering the name of the file here will allow you\n"
+ "to modify that configuration.\n"
+ "\n"
+ "If you are uncertain, then you have probably never used alternate\n"
+ "configuration files. You should therefor leave this blank to abort.\n",
+save_config_text[] =
+ "Enter a filename to which this configuration should be saved "
+ "as an alternate. Leave blank to abort.",
+save_config_help[] =
+ "\n"
+ "For various reasons, one may wish to keep different Buildroot\n"
+ "configurations available on a single machine.\n"
+ "\n"
+ "Entering a file name here will allow you to later retrieve, modify\n"
+ "and use the current configuration as an alternate to whatever\n"
+ "configuration options you have selected at that time.\n"
+ "\n"
+ "If you are uncertain what all this means then you should probably\n"
+ "leave this blank.\n",
+top_menu_help[] =
+ "\n"
+ "Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
+ "you wish to change or submenu wish to select and press <Enter>.\n"
+ "Submenus are designated by \"--->\".\n"
+ "\n"
+ "Shortcut: Press the option's highlighted letter (hotkey).\n"
+ "\n"
+ "You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+ "unseen options into view.\n"
+;
+
+static char filename[PATH_MAX+1] = ".config";
+static int indent = 0;
+static struct termios ios_org;
+static int rows, cols;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+
+static struct dialog_list_item *items[16384]; /* FIXME: This ought to be dynamic. */
+static int item_no;
+
+static void conf(struct menu *menu);
+static void conf_choice(struct menu *menu);
+static void conf_string(struct menu *menu);
+static void conf_load(void);
+static void conf_save(void);
+static void show_textbox(const char *title, const char *text, int r, int c);
+static void show_helptext(const char *title, const char *text);
+static void show_help(struct menu *menu);
+static void show_readme(void);
+
+static void init_wsize(void)
+{
+ struct winsize ws;
+ char *env;
+
+ if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
+ rows = 24;
+ cols = 80;
+ } else {
+ 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) {
+ 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;
+}
+
+static void cinit(void)
+{
+ item_no = 0;
+}
+
+static void cmake(void)
+{
+ 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 cprint_name(const char *fmt, ...)
+{
+ va_list ap;
+ int res;
+
+ if (!item_no)
+ cmake();
+ va_start(ap, fmt);
+ 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);
+
+ return res;
+}
+
+static int cprint_tag(const char *fmt, ...)
+{
+ va_list ap;
+ int res;
+
+ if (!item_no)
+ cmake();
+ va_start(ap, fmt);
+ res = vsnprintf(items[item_no - 1]->tag, 32, fmt, ap);
+ va_end(ap);
+
+ return res;
+}
+
+static void cdone(void)
+{
+ int i;
+
+ for (i = 0; i < item_no; i++) {
+ free(items[i]->tag);
+ free(items[i]->name);
+ free(items[i]);
+ }
+
+ item_no = 0;
+}
+
+static void build_conf(struct menu *menu)
+{
+ struct symbol *sym;
+ struct property *prop;
+ struct menu *child;
+ int type, tmp, doint = 2;
+ tristate val;
+ char ch;
+
+ if (!menu_is_visible(menu))
+ return;
+
+ sym = menu->sym;
+ prop = menu->prompt;
+ if (!sym) {
+ if (prop && menu != current_menu) {
+ const char *prompt = menu_get_prompt(menu);
+ switch (prop->type) {
+ case P_MENU:
+ child_count++;
+ cmake();
+ cprint_tag("m%p", menu);
+
+ if (single_menu_mode) {
+ cprint_name("%s%*c%s",
+ menu->data ? "-->" : "++>",
+ indent + 1, ' ', prompt);
+ } else {
+ cprint_name(" %*c%s --->", indent + 1, ' ', prompt);
+ }
+
+ if (single_menu_mode && menu->data)
+ goto conf_childs;
+ return;
+ default:
+ if (prompt) {
+ child_count++;
+ cmake();
+ cprint_tag(":%p", menu);
+ cprint_name("---%*c%s", indent + 1, ' ', prompt);
+ }
+ }
+ } else
+ doint = 0;
+ goto conf_childs;
+ }
+
+ cmake();
+ type = sym_get_type(sym);
+ if (sym_is_choice(sym)) {
+ struct symbol *def_sym = sym_get_choice_value(sym);
+ struct menu *def_menu = NULL;
+
+ child_count++;
+ for (child = menu->list; child; child = child->next) {
+ if (menu_is_visible(child) && child->sym == def_sym)
+ def_menu = child;
+ }
+
+ val = sym_get_tristate_value(sym);
+ if (sym_is_changable(sym)) {
+ cprint_tag("t%p", menu);
+ switch (type) {
+ case S_BOOLEAN:
+ cprint_name("[%c]", val == no ? ' ' : '*');
+ break;
+ case S_TRISTATE:
+ switch (val) {
+ case yes: ch = '*'; break;
+ case mod: ch = 'M'; break;
+ default: ch = ' '; break;
+ }
+ cprint_name("<%c>", ch);
+ break;
+ }
+ } else {
+ cprint_tag("%c%p", def_menu ? 't' : ':', menu);
+ cprint_name(" ");
+ }
+
+ cprint_name("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+ if (val == yes) {
+ if (def_menu) {
+ cprint_name(" (%s)", menu_get_prompt(def_menu));
+ cprint_name(" --->");
+ if (def_menu->list) {
+ indent += 2;
+ build_conf(def_menu);
+ indent -= 2;
+ }
+ }
+ return;
+ }
+ } else {
+ child_count++;
+ val = sym_get_tristate_value(sym);
+ if (sym_is_choice_value(sym) && val == yes) {
+ cprint_tag(":%p", menu);
+ cprint_name(" ");
+ } else {
+ switch (type) {
+ case S_BOOLEAN:
+ cprint_tag("t%p", menu);
+ if (sym_is_changable(sym))
+ cprint_name("[%c]", val == no ? ' ' : '*');
+ else
+ cprint_name("---");
+ break;
+ case S_TRISTATE:
+ cprint_tag("t%p", menu);
+ switch (val) {
+ case yes: ch = '*'; break;
+ case mod: ch = 'M'; break;
+ default: ch = ' '; break;
+ }
+ if (sym_is_changable(sym))
+ cprint_name("<%c>", ch);
+ else
+ cprint_name("---");
+ break;
+ default:
+ cprint_tag("s%p", menu);
+ tmp = cprint_name("(%s)", sym_get_string_value(sym));
+ tmp = indent - tmp + 4;
+ if (tmp < 0)
+ tmp = 0;
+ cprint_name("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
+ (sym_has_value(sym) || !sym_is_changable(sym)) ?
+ "" : " (NEW)");
+ goto conf_childs;
+ }
+ }
+ 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) {
+ cprint_name(" --->");
+ return;
+ }
+ }
+
+conf_childs:
+ indent += doint;
+ for (child = menu->list; child; child = child->next)
+ build_conf(child);
+ indent -= doint;
+}
+
+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;
+
+ unlink("lxdialog.scrltmp");
+ active_entry[0] = 0;
+ while (1) {
+ indent = 0;
+ child_count = 0;
+ current_menu = menu;
+ cdone(); cinit();
+ build_conf(menu);
+ if (!child_count)
+ break;
+ if (menu == &rootmenu) {
+ 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)
+ return;
+
+ if (stat == 1 || stat == 255)
+ break;
+
+ 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;
+
+ sym = NULL;
+ submenu = NULL;
+ if (sscanf(active_entry + 1, "%p", &submenu) == 1)
+ sym = submenu->sym;
+
+ switch (stat) {
+ case 0:
+ switch (type) {
+ case 'm':
+ if (single_menu_mode)
+ submenu->data = (void *) (long) !submenu->data;
+ else
+ conf(submenu);
+ break;
+ case 't':
+ if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
+ conf_choice(submenu);
+ else if (submenu->prompt->type == P_MENU)
+ conf(submenu);
+ break;
+ case 's':
+ conf_string(submenu);
+ break;
+ case 'L':
+ conf_load();
+ break;
+ case 'S':
+ conf_save();
+ break;
+ }
+ break;
+ case 2:
+ if (sym)
+ show_help(submenu);
+ else
+ show_readme();
+ break;
+ case 3:
+ if (type == 't') {
+ if (sym_set_tristate_value(sym, yes))
+ break;
+ if (sym_set_tristate_value(sym, mod))
+ show_textbox(NULL, setmod_text, 6, 74);
+ }
+ break;
+ case 4:
+ if (type == 't')
+ sym_set_tristate_value(sym, no);
+ break;
+ case 5:
+ if (type == 't')
+ sym_set_tristate_value(sym, mod);
+ break;
+ case 6:
+ if (type == 't')
+ sym_toggle_tristate_value(sym);
+ else if (type == 'm')
+ conf(submenu);
+ break;
+ }
+ }
+}
+
+static void show_textbox(const char *title, const char *text, int r, int c)
+{
+ int fd;
+
+ fd = creat(".help.tmp", 0777);
+ write(fd, text, strlen(text));
+ close(fd);
+ while (dialog_textbox(title, ".help.tmp", r, c) < 0)
+ ;
+ unlink(".help.tmp");
+}
+
+static void show_helptext(const char *title, const char *text)
+{
+ show_textbox(title, text, rows, cols);
+}
+
+static void show_help(struct menu *menu)
+{
+ const char *help;
+ char *helptext;
+ struct symbol *sym = menu->sym;
+
+ help = sym->help;
+ if (!help)
+ help = nohelp_text;
+ if (sym->name) {
+ helptext = malloc(strlen(sym->name) + strlen(help) + 16);
+ sprintf(helptext, "%s:\n\n%s", sym->name, help);
+ show_helptext(menu_get_prompt(menu), helptext);
+ free(helptext);
+ } else
+ show_helptext(menu_get_prompt(menu), help);
+}
+
+static void show_readme(void)
+{
+ show_helptext("Help", top_menu_help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+ const char *prompt = menu_get_prompt(menu);
+ struct menu *child;
+ struct symbol *active;
+
+ active = sym_get_choice_value(menu->sym);
+ while (1) {
+ current_menu = menu;
+ cdone(); cinit();
+ for (child = menu->list; child; child = child->next) {
+ if (!menu_is_visible(child))
+ continue;
+ cmake();
+ cprint_tag("%p", child);
+ cprint_name("%s", menu_get_prompt(child));
+ if (child->sym == sym_get_choice_value(menu->sym))
+ items[item_no - 1]->selected = 1; /* ON */
+ else if (child->sym == active)
+ items[item_no - 1]->selected = 2; /* SELECTED */
+ else
+ items[item_no - 1]->selected = 0; /* OFF */
+ }
+
+ switch (dialog_checklist(prompt ? prompt : "Main Menu",
+ radiolist_instructions, 15, 70, 6,
+ item_no, items, FLAG_RADIO)) {
+ case 0:
+ if (sscanf(first_sel_item(item_no, items)->tag, "%p", &child) != 1)
+ break;
+ sym_set_tristate_value(child->sym, yes);
+ return;
+ case 1:
+ if (sscanf(first_sel_item(item_no, items)->tag, "%p", &child) == 1) {
+ show_help(child);
+ active = child->sym;
+ } else
+ show_help(menu);
+ break;
+ case 255:
+ return;
+ }
+ }
+}
+
+static void conf_string(struct menu *menu)
+{
+ const char *prompt = menu_get_prompt(menu);
+
+ while (1) {
+ char *heading;
+
+ switch (sym_get_type(menu->sym)) {
+ case S_INT:
+ heading = (char *) inputbox_instructions_int;
+ break;
+ case S_HEX:
+ heading = (char *) inputbox_instructions_hex;
+ break;
+ case S_STRING:
+ heading = (char *) inputbox_instructions_string;
+ break;
+ default:
+ heading = "Internal mconf error!";
+ /* panic? */;
+ }
+
+ 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, 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)
+{
+ while (1) {
+ switch (dialog_inputbox(NULL, load_config_text, 11, 55,
+ filename)) {
+ case 0:
+ if (!dialog_input_result[0])
+ return;
+ 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)
+{
+ while (1) {
+ switch (dialog_inputbox(NULL, save_config_text, 11, 55,
+ filename)) {
+ case 0:
+ if (!dialog_input_result[0])
+ return;
+ 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;
+ }
+ }
+}
+
+static void conf_cleanup(void)
+{
+ tcsetattr(1, TCSAFLUSH, &ios_org);
+ unlink(".help.tmp");
+}
+
+static void winch_handler(int sig)
+{
+ struct winsize ws;
+
+ if (ioctl(1, TIOCGWINSZ, &ws) == -1) {
+ rows = 24;
+ cols = 80;
+ } else {
+ rows = ws.ws_row;
+ cols = ws.ws_col;
+ }
+
+ 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;
+
+}
+
+int main(int ac, char **av)
+{
+ int stat;
+ char *mode;
+ struct symbol *sym;
+
+ conf_parse(av[1]);
+ conf_read(NULL);
+
+ sym = sym_lookup("VERSION", 0);
+ sym_calc_value(sym);
+ snprintf(menu_backtitle, 128, "Buildroot v%s Configuration",
+ sym_get_string_value(sym));
+
+ mode = getenv("MENUCONFIG_MODE");
+ if (mode) {
+ if (!strcasecmp(mode, "single_menu"))
+ single_menu_mode = 1;
+ }
+
+ tcgetattr(1, &ios_org);
+ atexit(conf_cleanup);
+ init_wsize();
+ init_dialog();
+ signal(SIGWINCH, winch_handler);
+ conf(&rootmenu);
+ end_dialog();
+
+ /* Restart dialog to act more like when lxdialog was still separate */
+ init_dialog();
+ do {
+ stat = dialog_yesno(NULL,
+ "Do you wish to save your new Buildroot configuration?", 5, 60);
+ } while (stat < 0);
+ end_dialog();
+
+ if (stat == 0) {
+ conf_write(NULL);
+ printf("\n\n"
+ "*** End of Buildroot configuration.\n"
+ "*** Check the top-level Makefile for additional configuration options.\n\n");
+ } else
+ printf("\n\nYour Buildroot configuration changes were NOT saved.\n\n");
+
+ return 0;
+}