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+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+#define LKC_DIRECT_LINK
+#include "lkc.h"
+#include "nconf.h"
+
+static const char nconf_readme[] = N_(
+"Overview\n"
+"--------\n"
+"Some kernel features may be built directly into the kernel.\n"
+"Some may be made into loadable runtime modules. Some features\n"
+"may be completely removed altogether. There are also certain\n"
+"kernel parameters which are not really features, but must be\n"
+"entered in as decimal or hexadecimal numbers or possibly text.\n"
+"\n"
+"Menu items beginning with following braces represent features that\n"
+" [ ] can be built in or removed\n"
+" < > can be built in, modularized or removed\n"
+" { } can be built in or modularized (selected by other feature)\n"
+" - - are selected by other feature,\n"
+" XXX cannot be selected. use Symbol Info to find out why,\n"
+"while *, M or whitespace inside braces means to build in, build as\n"
+"a module or to exclude the feature respectively.\n"
+"\n"
+"To change any of these features, highlight it with the cursor\n"
+"keys and press <Y> to build it in, <M> to make it a module or\n"
+"<N> to removed it. You may also press the <Space Bar> to cycle\n"
+"through the available options (ie. Y->N->M->Y).\n"
+"\n"
+"Some additional keyboard hints:\n"
+"\n"
+"Menus\n"
+"----------\n"
+"o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
+" you wish to change use <Enter> or <Space>. Goto submenu by \n"
+" pressing <Enter> of <right-arrow>. Use <Esc> or <left-arrow> to go back.\n"
+" Submenus are designated by \"--->\".\n"
+"\n"
+" Shortcut: Press the option's highlighted letter (hotkey).\n"
+" Pressing a hotkey more than once will sequence\n"
+" through all visible items which use that hotkey.\n"
+"\n"
+" You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
+" unseen options into view.\n"
+"\n"
+"o To exit a menu use the just press <ESC> <F5> <F8> or <left-arrow>.\n"
+"\n"
+"o To get help with an item, press <F1>\n"
+" Shortcut: Press <h> or <?>.\n"
+"\n"
+"\n"
+"Radiolists (Choice lists)\n"
+"-----------\n"
+"o Use the cursor keys to select the option you wish to set and press\n"
+" <S> or the <SPACE BAR>.\n"
+"\n"
+" Shortcut: Press the first letter of the option you wish to set then\n"
+" press <S> or <SPACE BAR>.\n"
+"\n"
+"o To see available help for the item, press <F1>\n"
+" Shortcut: Press <H> or <?>.\n"
+"\n"
+"\n"
+"Data Entry\n"
+"-----------\n"
+"o Enter the requested information and press <ENTER>\n"
+" If you are entering hexadecimal values, it is not necessary to\n"
+" add the '0x' prefix to the entry.\n"
+"\n"
+"o For help, press <F1>.\n"
+"\n"
+"\n"
+"Text Box (Help Window)\n"
+"--------\n"
+"o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
+" keys h,j,k,l function here as do <SPACE BAR> for those\n"
+" who are familiar with less and lynx.\n"
+"\n"
+"o Press <Enter>, <F1>, <F5>, <F7> or <Esc> to exit.\n"
+"\n"
+"\n"
+"Alternate Configuration Files\n"
+"-----------------------------\n"
+"nconfig supports the use of alternate configuration files for\n"
+"those who, for various reasons, find it necessary to switch\n"
+"between different kernel configurations.\n"
+"\n"
+"At the end of the main menu you will find two options. One is\n"
+"for saving the current configuration to a file of your choosing.\n"
+"The other option is for loading a previously saved alternate\n"
+"configuration.\n"
+"\n"
+"Even if you don't use alternate configuration files, but you\n"
+"find during a nconfig session that you have completely messed\n"
+"up your settings, you may use the \"Load Alternate...\" option to\n"
+"restore your previously saved settings from \".config\" without\n"
+"restarting nconfig.\n"
+"\n"
+"Other information\n"
+"-----------------\n"
+"If you use nconfig in an XTERM window make sure you have your\n"
+"$TERM variable set to point to a xterm definition which supports color.\n"
+"Otherwise, nconfig will look rather bad. nconfig will not\n"
+"display correctly in a RXVT window because rxvt displays only one\n"
+"intensity of color, bright.\n"
+"\n"
+"nconfig will display larger menus on screens or xterms which are\n"
+"set to display more than the standard 25 row by 80 column geometry.\n"
+"In order for this to work, the \"stty size\" command must be able to\n"
+"display the screen's current row and column geometry. I STRONGLY\n"
+"RECOMMEND that you make sure you do NOT have the shell variables\n"
+"LINES and COLUMNS exported into your environment. Some distributions\n"
+"export those variables via /etc/profile. Some ncurses programs can\n"
+"become confused when those variables (LINES & COLUMNS) don't reflect\n"
+"the true screen size.\n"
+"\n"
+"Optional personality available\n"
+"------------------------------\n"
+"If you prefer to have all of the kernel options listed in a single\n"
+"menu, rather than the default multimenu hierarchy, run the nconfig\n"
+"with NCONFIG_MODE environment variable set to single_menu. Example:\n"
+"\n"
+"make NCONFIG_MODE=single_menu nconfig\n"
+"\n"
+"<Enter> will then unroll the appropriate category, or enfold it if it\n"
+"is already unrolled.\n"
+"\n"
+"Note that this mode can eventually be a little more CPU expensive\n"
+"(especially with a larger number of unrolled categories) than the\n"
+"default mode.\n"
+"\n"),
+menu_no_f_instructions[] = N_(
+" You do not have function keys support. Please follow the\n"
+" following instructions:\n"
+" Arrow keys navigate the menu.\n"
+" <Enter> or <right-arrow> selects submenus --->.\n"
+" Capital Letters are hotkeys.\n"
+" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
+" Pressing SpaceBar toggles between the above options\n"
+" Press <Esc> or <left-arrow> to go back one menu, \n"
+" <?> or <h> for Help, </> for Search.\n"
+" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
+" <Esc> always leaves the current window\n"),
+menu_instructions[] = N_(
+" Arrow keys navigate the menu.\n"
+" <Enter> or <right-arrow> selects submenus --->.\n"
+" Capital Letters are hotkeys.\n"
+" Pressing <Y> includes, <N> excludes, <M> modularizes features.\n"
+" Pressing SpaceBar toggles between the above options\n"
+" Press <Esc>, <F3> or <left-arrow> to go back one menu, \n"
+" <?>, <F1> or <h> for Help, </> for Search.\n"
+" <1> is interchangable with <F1>, <2> with <F2>, etc.\n"
+" Legend: [*] built-in [ ] excluded <M> module < > module capable.\n"
+" <Esc> always leaves the current window\n"),
+radiolist_instructions[] = N_(
+" Use the arrow keys to navigate this window or\n"
+" press the hotkey of the item you wish to select\n"
+" followed by the <SPACE BAR>.\n"
+" Press <?>, <F1> or <h> for additional information about this option.\n"),
+inputbox_instructions_int[] = N_(
+"Please enter a decimal value.\n"
+"Fractions will not be accepted.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_hex[] = N_(
+"Please enter a hexadecimal value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+inputbox_instructions_string[] = N_(
+"Please enter a string value.\n"
+"Press <RETURN> to accept, <ESC> to cancel."),
+setmod_text[] = N_(
+"This feature depends on another which\n"
+"has been configured as a module.\n"
+"As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+"There is no help available for this kernel option.\n"),
+load_config_text[] = N_(
+"Enter the name of the configuration file you wish to load.\n"
+"Accept the name shown to restore the configuration you\n"
+"last retrieved. Leave blank to abort."),
+load_config_help[] = N_(
+"\n"
+"For various reasons, one may wish to keep several different kernel\n"
+"configurations available on a single machine.\n"
+"\n"
+"If you have saved a previous configuration in a file other than the\n"
+"kernel's default, entering the name of the file here will allow you\n"
+"to modify that configuration.\n"
+"\n"
+"If you are uncertain, then you have probably never used alternate\n"
+"configuration files. You should therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
+"Enter a filename to which this configuration should be saved\n"
+"as an alternate. Leave blank to abort."),
+save_config_help[] = N_(
+"\n"
+"For various reasons, one may wish to keep different kernel\n"
+"configurations available on a single machine.\n"
+"\n"
+"Entering a file name here will allow you to later retrieve, modify\n"
+"and use the current configuration as an alternate to whatever\n"
+"configuration options you have selected at that time.\n"
+"\n"
+"If you are uncertain what all this means then you should probably\n"
+"leave this blank.\n"),
+search_help[] = N_(
+"\n"
+"Search for CONFIG_ symbols and display their relations.\n"
+"Regular expressions are allowed.\n"
+"Example: search for \"^FOO\"\n"
+"Result:\n"
+"-----------------------------------------------------------------\n"
+"Symbol: FOO [ = m]\n"
+"Prompt: Foo bus is used to drive the bar HW\n"
+"Defined at drivers/pci/Kconfig:47\n"
+"Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
+"Location:\n"
+" -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
+" -> PCI support (PCI [ = y])\n"
+" -> PCI access mode (<choice> [ = y])\n"
+"Selects: LIBCRC32\n"
+"Selected by: BAR\n"
+"-----------------------------------------------------------------\n"
+"o The line 'Prompt:' shows the text used in the menu structure for\n"
+" this CONFIG_ symbol\n"
+"o The 'Defined at' line tell at what file / line number the symbol\n"
+" is defined\n"
+"o The 'Depends on:' line tell what symbols needs to be defined for\n"
+" this symbol to be visible in the menu (selectable)\n"
+"o The 'Location:' lines tell where in the menu structure this symbol\n"
+" is located\n"
+" A location followed by a [ = y] indicate that this is a selectable\n"
+" menu item - and current value is displayed inside brackets.\n"
+"o The 'Selects:' line tell what symbol will be automatically\n"
+" selected if this symbol is selected (y or m)\n"
+"o The 'Selected by' line tell what symbol has selected this symbol\n"
+"\n"
+"Only relevant lines are shown.\n"
+"\n\n"
+"Search examples:\n"
+"Examples: USB = > find all CONFIG_ symbols containing USB\n"
+" ^USB => find all CONFIG_ symbols starting with USB\n"
+" USB$ => find all CONFIG_ symbols ending with USB\n"
+"\n");
+
+struct mitem {
+ char str[256];
+ char tag;
+ void *usrptr;
+ int is_hot;
+ int is_visible;
+};
+
+#define MAX_MENU_ITEMS 4096
+static int show_all_items;
+static int indent;
+static struct menu *current_menu;
+static int child_count;
+static int single_menu_mode;
+/* the window in which all information appears */
+static WINDOW *main_window;
+/* the largest size of the menu window */
+static int mwin_max_lines;
+static int mwin_max_cols;
+/* the window in which we show option buttons */
+static MENU *curses_menu;
+static ITEM *curses_menu_items[MAX_MENU_ITEMS];
+static struct mitem k_menu_items[MAX_MENU_ITEMS];
+static int items_num;
+static int global_exit;
+/* the currently selected button */
+const char *current_instructions = menu_instructions;
+/* this array is used to implement hot keys. it is updated in item_make and
+ * resetted in clean_items. It would be better to use a hash, but lets keep it
+ * simple... */
+#define MAX_SAME_KEY MAX_MENU_ITEMS
+struct {
+ int count;
+ int ptrs[MAX_MENU_ITEMS];
+} hotkeys[1<<(sizeof(char)*8)];
+
+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_help(struct menu *menu);
+static int do_exit(void);
+static void setup_windows(void);
+
+typedef void (*function_key_handler_t)(int *key, struct menu *menu);
+static void handle_f1(int *key, struct menu *current_item);
+static void handle_f2(int *key, struct menu *current_item);
+static void handle_f3(int *key, struct menu *current_item);
+static void handle_f4(int *key, struct menu *current_item);
+static void handle_f5(int *key, struct menu *current_item);
+static void handle_f6(int *key, struct menu *current_item);
+static void handle_f7(int *key, struct menu *current_item);
+static void handle_f8(int *key, struct menu *current_item);
+
+struct function_keys {
+ const char *key_str;
+ const char *func;
+ function_key key;
+ function_key_handler_t handler;
+};
+
+static const int function_keys_num = 8;
+struct function_keys function_keys[] = {
+ {
+ .key_str = "F1",
+ .func = "Help",
+ .key = F_HELP,
+ .handler = handle_f1,
+ },
+ {
+ .key_str = "F2",
+ .func = "Symbol Info",
+ .key = F_SYMBOL,
+ .handler = handle_f2,
+ },
+ {
+ .key_str = "F3",
+ .func = "Instructions",
+ .key = F_INSTS,
+ .handler = handle_f3,
+ },
+ {
+ .key_str = "F4",
+ .func = "Config",
+ .key = F_CONF,
+ .handler = handle_f4,
+ },
+ {
+ .key_str = "F5",
+ .func = "Back",
+ .key = F_BACK,
+ .handler = handle_f5,
+ },
+ {
+ .key_str = "F6",
+ .func = "Save",
+ .key = F_SAVE,
+ .handler = handle_f6,
+ },
+ {
+ .key_str = "F7",
+ .func = "Load",
+ .key = F_LOAD,
+ .handler = handle_f7,
+ },
+ {
+ .key_str = "F8",
+ .func = "Exit",
+ .key = F_EXIT,
+ .handler = handle_f8,
+ },
+};
+
+static void print_function_line(void)
+{
+ int i;
+ int offset = 1;
+ const int skip = 1;
+
+ for (i = 0; i < function_keys_num; i++) {
+ wattrset(main_window, attributes[FUNCTION_HIGHLIGHT]);
+ mvwprintw(main_window, LINES-3, offset,
+ "%s",
+ function_keys[i].key_str);
+ wattrset(main_window, attributes[FUNCTION_TEXT]);
+ offset += strlen(function_keys[i].key_str);
+ mvwprintw(main_window, LINES-3,
+ offset, "%s",
+ function_keys[i].func);
+ offset += strlen(function_keys[i].func) + skip;
+ }
+ wattrset(main_window, attributes[NORMAL]);
+}
+
+/* help */
+static void handle_f1(int *key, struct menu *current_item)
+{
+ show_scroll_win(main_window,
+ _("README"), _(nconf_readme));
+ return;
+}
+
+/* symbole help */
+static void handle_f2(int *key, struct menu *current_item)
+{
+ show_help(current_item);
+ return;
+}
+
+/* instructions */
+static void handle_f3(int *key, struct menu *current_item)
+{
+ show_scroll_win(main_window,
+ _("Instructions"),
+ _(current_instructions));
+ return;
+}
+
+/* config */
+static void handle_f4(int *key, struct menu *current_item)
+{
+ int res = btn_dialog(main_window,
+ _("Show all symbols?"),
+ 2,
+ " <Show All> ",
+ "<Don't show all>");
+ if (res == 0)
+ show_all_items = 1;
+ else if (res == 1)
+ show_all_items = 0;
+
+ return;
+}
+
+/* back */
+static void handle_f5(int *key, struct menu *current_item)
+{
+ *key = KEY_LEFT;
+ return;
+}
+
+/* save */
+static void handle_f6(int *key, struct menu *current_item)
+{
+ conf_save();
+ return;
+}
+
+/* load */
+static void handle_f7(int *key, struct menu *current_item)
+{
+ conf_load();
+ return;
+}
+
+/* exit */
+static void handle_f8(int *key, struct menu *current_item)
+{
+ do_exit();
+ return;
+}
+
+/* return != 0 to indicate the key was handles */
+static int process_special_keys(int *key, struct menu *menu)
+{
+ int i;
+
+ if (*key == KEY_RESIZE) {
+ setup_windows();
+ return 1;
+ }
+
+ for (i = 0; i < function_keys_num; i++) {
+ if (*key == KEY_F(function_keys[i].key) ||
+ *key == '0' + function_keys[i].key){
+ function_keys[i].handler(key, menu);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+static void clean_items(void)
+{
+ int i;
+ for (i = 0; curses_menu_items[i]; i++)
+ free_item(curses_menu_items[i]);
+ bzero(curses_menu_items, sizeof(curses_menu_items));
+ bzero(k_menu_items, sizeof(k_menu_items));
+ bzero(hotkeys, sizeof(hotkeys));
+ items_num = 0;
+}
+
+/* return the index of the next hot item, or -1 if no such item exists */
+static int get_next_hot(int c)
+{
+ static int hot_index;
+ static int hot_char;
+
+ if (c < 0 || c > 255 || hotkeys[c].count <= 0)
+ return -1;
+
+ if (hot_char == c) {
+ hot_index = (hot_index+1)%hotkeys[c].count;
+ return hotkeys[c].ptrs[hot_index];
+ } else {
+ hot_char = c;
+ hot_index = 0;
+ return hotkeys[c].ptrs[0];
+ }
+}
+
+/* can the char c be a hot key? no, if c is a common shortcut used elsewhere */
+static int canbhot(char c)
+{
+ c = tolower(c);
+ return isalnum(c) && c != 'y' && c != 'm' && c != 'h' &&
+ c != 'n' && c != '?';
+}
+
+/* check if str already contains a hot key. */
+static int is_hot(int index)
+{
+ return k_menu_items[index].is_hot;
+}
+
+/* find the first possible hot key, and mark it.
+ * index is the index of the item in the menu
+ * return 0 on success*/
+static int make_hot(char *dest, int len, const char *org, int index)
+{
+ int position = -1;
+ int i;
+ int tmp;
+ int c;
+ int org_len = strlen(org);
+
+ if (org == NULL || is_hot(index))
+ return 1;
+
+ /* make sure not to make hot keys out of markers.
+ * find where to start looking for a hot key
+ */
+ i = 0;
+ /* skip white space */
+ while (i < org_len && org[i] == ' ')
+ i++;
+ if (i == org_len)
+ return -1;
+ /* if encountering '(' or '<' or '[', find the match and look from there
+ **/
+ if (org[i] == '[' || org[i] == '<' || org[i] == '(') {
+ i++;
+ for (; i < org_len; i++)
+ if (org[i] == ']' || org[i] == '>' || org[i] == ')')
+ break;
+ }
+ if (i == org_len)
+ return -1;
+ for (; i < org_len; i++) {
+ if (canbhot(org[i]) && org[i-1] != '<' && org[i-1] != '(') {
+ position = i;
+ break;
+ }
+ }
+ if (position == -1)
+ return 1;
+
+ /* ok, char at org[position] should be a hot key to this item */
+ c = tolower(org[position]);
+ tmp = hotkeys[c].count;
+ hotkeys[c].ptrs[tmp] = index;
+ hotkeys[c].count++;
+ /*
+ snprintf(dest, len, "%.*s(%c)%s", position, org, org[position],
+ &org[position+1]);
+ */
+ /* make org[position] uppercase, and all leading letter small case */
+ strncpy(dest, org, len);
+ for (i = 0; i < position; i++)
+ dest[i] = tolower(dest[i]);
+ dest[position] = toupper(dest[position]);
+ k_menu_items[index].is_hot = 1;
+ return 0;
+}
+
+/* Make a new item. Add a hotkey mark in the first possible letter.
+ * As ncurses does not allow any attributes inside menue item, we mark the
+ * hot key as the first capitalized letter in the string */
+static void item_make(struct menu *menu, char tag, const char *fmt, ...)
+{
+ va_list ap;
+ char tmp_str[256];
+
+ if (items_num > MAX_MENU_ITEMS-1)
+ return;
+
+ bzero(&k_menu_items[items_num], sizeof(k_menu_items[0]));
+ k_menu_items[items_num].tag = tag;
+ k_menu_items[items_num].usrptr = menu;
+ if (menu != NULL)
+ k_menu_items[items_num].is_visible =
+ menu_is_visible(menu);
+ else
+ k_menu_items[items_num].is_visible = 1;
+
+ va_start(ap, fmt);
+ vsnprintf(tmp_str, sizeof(tmp_str), fmt, ap);
+ if (!k_menu_items[items_num].is_visible)
+ memcpy(tmp_str, "XXX", 3);
+ va_end(ap);
+ if (make_hot(
+ k_menu_items[items_num].str,
+ sizeof(k_menu_items[items_num].str), tmp_str, items_num) != 0)
+ strncpy(k_menu_items[items_num].str,
+ tmp_str,
+ sizeof(k_menu_items[items_num].str));
+
+ curses_menu_items[items_num] = new_item(
+ k_menu_items[items_num].str,
+ k_menu_items[items_num].str);
+ set_item_userptr(curses_menu_items[items_num],
+ &k_menu_items[items_num]);
+ /*
+ if (!k_menu_items[items_num].is_visible)
+ item_opts_off(curses_menu_items[items_num], O_SELECTABLE);
+ */
+
+ items_num++;
+ curses_menu_items[items_num] = NULL;
+}
+
+/* very hackish. adds a string to the last item added */
+static void item_add_str(const char *fmt, ...)
+{
+ va_list ap;
+ int index = items_num-1;
+ char new_str[256];
+ char tmp_str[256];
+
+ if (index < 0)
+ return;
+
+ va_start(ap, fmt);
+ vsnprintf(new_str, sizeof(new_str), fmt, ap);
+ va_end(ap);
+ snprintf(tmp_str, sizeof(tmp_str), "%s%s",
+ k_menu_items[index].str, new_str);
+ if (make_hot(k_menu_items[index].str,
+ sizeof(k_menu_items[index].str), tmp_str, index) != 0)
+ strncpy(k_menu_items[index].str,
+ tmp_str,
+ sizeof(k_menu_items[index].str));
+
+ free_item(curses_menu_items[index]);
+ curses_menu_items[index] = new_item(
+ k_menu_items[index].str,
+ k_menu_items[index].str);
+ set_item_userptr(curses_menu_items[index],
+ &k_menu_items[index]);
+}
+
+/* get the tag of the currently selected item */
+static char item_tag(void)
+{
+ ITEM *cur;
+ struct mitem *mcur;
+
+ cur = current_item(curses_menu);
+ if (cur == NULL)
+ return 0;
+ mcur = (struct mitem *) item_userptr(cur);
+ return mcur->tag;
+}
+
+static int curses_item_index(void)
+{
+ return item_index(current_item(curses_menu));
+}
+
+static void *item_data(void)
+{
+ ITEM *cur;
+ struct mitem *mcur;
+
+ cur = current_item(curses_menu);
+ if (!cur)
+ return NULL;
+ mcur = (struct mitem *) item_userptr(cur);
+ return mcur->usrptr;
+
+}
+
+static int item_is_tag(char tag)
+{
+ return item_tag() == tag;
+}
+
+static char filename[PATH_MAX+1];
+static char menu_backtitle[PATH_MAX+128];
+static const char *set_config_filename(const char *config_filename)
+{
+ int size;
+ struct symbol *sym;
+
+ sym = sym_lookup("KERNELVERSION", 0);
+ sym_calc_value(sym);
+ size = snprintf(menu_backtitle, sizeof(menu_backtitle),
+ _("%s - Linux Kernel v%s Configuration"),
+ config_filename, sym_get_string_value(sym));
+ if (size >= sizeof(menu_backtitle))
+ menu_backtitle[sizeof(menu_backtitle)-1] = '\0';
+
+ size = snprintf(filename, sizeof(filename), "%s", config_filename);
+ if (size >= sizeof(filename))
+ filename[sizeof(filename)-1] = '\0';
+ return menu_backtitle;
+}
+
+/* command = 0 is supress, 1 is restore */
+static void supress_stdout(int command)
+{
+ static FILE *org_stdout;
+ static FILE *org_stderr;
+
+ if (command == 0) {
+ org_stdout = stdout;
+ org_stderr = stderr;
+ stdout = fopen("/dev/null", "a");
+ stderr = fopen("/dev/null", "a");
+ } else {
+ fclose(stdout);
+ fclose(stderr);
+ stdout = org_stdout;
+ stderr = org_stderr;
+ }
+}
+
+/* return = 0 means we are successful.
+ * -1 means go on doing what you were doing
+ */
+static int do_exit(void)
+{
+ int res;
+ if (!conf_get_changed()) {
+ global_exit = 1;
+ return 0;
+ }
+ res = btn_dialog(main_window,
+ _("Do you wish to save your "
+ "new kernel configuration?\n"
+ "<ESC> to cancel and resume nconfig."),
+ 2,
+ " <save> ",
+ "<don't save>");
+ if (res == KEY_EXIT) {
+ global_exit = 0;
+ return -1;
+ }
+
+ /* if we got here, the user really wants to exit */
+ switch (res) {
+ case 0:
+ supress_stdout(0);
+ res = conf_write(filename);
+ supress_stdout(1);
+ if (res)
+ btn_dialog(
+ main_window,
+ _("Error during writing of the kernel "
+ "configuration.\n"
+ "Your kernel configuration "
+ "changes were NOT saved."),
+ 1,
+ "<OK>");
+ else {
+ char buf[1024];
+ snprintf(buf, 1024,
+ _("Configuration written to %s\n"
+ "End of Linux kernel configuration.\n"
+ "Execute 'make' to build the kernel or try"
+ " 'make help'."), filename);
+ btn_dialog(
+ main_window,
+ buf,
+ 1,
+ "<OK>");
+ }
+ break;
+ default:
+ btn_dialog(
+ main_window,
+ _("Your kernel configuration changes were NOT saved."),
+ 1,
+ "<OK>");
+ break;
+ }
+ global_exit = 1;
+ return 0;
+}
+
+
+static void search_conf(void)
+{
+ struct symbol **sym_arr;
+ struct gstr res;
+ char dialog_input_result[100];
+ char *dialog_input;
+ int dres;
+again:
+ dres = dialog_inputbox(main_window,
+ _("Search Configuration Parameter"),
+ _("Enter CONFIG_ (sub)string to search for "
+ "(with or without \"CONFIG\")"),
+ "", dialog_input_result, 99);
+ switch (dres) {
+ case 0:
+ break;
+ case 1:
+ show_scroll_win(main_window,
+ _("Search Configuration"), search_help);
+ goto again;
+ default:
+ return;
+ }
+
+ /* strip CONFIG_ if necessary */
+ dialog_input = dialog_input_result;
+ if (strncasecmp(dialog_input_result, "CONFIG_", 7) == 0)
+ dialog_input += 7;
+
+ sym_arr = sym_re_search(dialog_input);
+ res = get_relations_str(sym_arr);
+ free(sym_arr);
+ show_scroll_win(main_window,
+ _("Search Results"), str_get(&res));
+ str_free(&res);
+}
+
+
+static void build_conf(struct menu *menu)
+{
+ struct symbol *sym;
+ struct property *prop;
+ struct menu *child;
+ int type, tmp, doint = 2;
+ tristate val;
+ char ch;
+
+ if (!menu || (!show_all_items && !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);
+ enum prop_type ptype;
+ ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
+ switch (ptype) {
+ case P_MENU:
+ child_count++;
+ prompt = _(prompt);
+ if (single_menu_mode) {
+ item_make(menu, 'm',
+ "%s%*c%s",
+ menu->data ? "-->" : "++>",
+ indent + 1, ' ', prompt);
+ } else
+ item_make(menu, 'm',
+ " %*c%s --->",
+ indent + 1,
+ ' ', prompt);
+
+ if (single_menu_mode && menu->data)
+ goto conf_childs;
+ return;
+ case P_COMMENT:
+ if (prompt) {
+ child_count++;
+ item_make(menu, ':',
+ " %*c*** %s ***",
+ indent + 1, ' ',
+ _(prompt));
+ }
+ break;
+ default:
+ if (prompt) {
+ child_count++;
+ item_make(menu, ':', "---%*c%s",
+ indent + 1, ' ',
+ _(prompt));
+ }
+ }
+ } else
+ doint = 0;
+ goto conf_childs;
+ }
+
+ type = sym_get_type(sym);
+ if (sym_is_choice(sym)) {
+ struct symbol *def_sym = sym_get_choice_value(sym);
+ struct menu *def_menu = NULL;
+
+ child_count++;
+ for (child = menu->list; child; child = child->next) {
+ if (menu_is_visible(child) && child->sym == def_sym)
+ def_menu = child;
+ }
+
+ val = sym_get_tristate_value(sym);
+ if (sym_is_changable(sym)) {
+ switch (type) {
+ case S_BOOLEAN:
+ item_make(menu, 't', "[%c]",
+ val == no ? ' ' : '*');
+ break;
+ case S_TRISTATE:
+ switch (val) {
+ case yes:
+ ch = '*';
+ break;
+ case mod:
+ ch = 'M';
+ break;
+ default:
+ ch = ' ';
+ break;
+ }
+ item_make(menu, 't', "<%c>", ch);
+ break;
+ }
+ } else {
+ item_make(menu, def_menu ? 't' : ':', " ");
+ }
+
+ item_add_str("%*c%s", indent + 1,
+ ' ', _(menu_get_prompt(menu)));
+ if (val == yes) {
+ if (def_menu) {
+ item_add_str(" (%s)",
+ _(menu_get_prompt(def_menu)));
+ item_add_str(" --->");
+ if (def_menu->list) {
+ indent += 2;
+ build_conf(def_menu);
+ indent -= 2;
+ }
+ }
+ return;
+ }
+ } else {
+ if (menu == current_menu) {
+ item_make(menu, ':',
+ "---%*c%s", indent + 1,
+ ' ', _(menu_get_prompt(menu)));
+ goto conf_childs;
+ }
+ child_count++;
+ val = sym_get_tristate_value(sym);
+ if (sym_is_choice_value(sym) && val == yes) {
+ item_make(menu, ':', " ");
+ } else {
+ switch (type) {
+ case S_BOOLEAN:
+ if (sym_is_changable(sym))
+ item_make(menu, 't', "[%c]",
+ val == no ? ' ' : '*');
+ else
+ item_make(menu, 't', "-%c-",
+ val == no ? ' ' : '*');
+ break;
+ case S_TRISTATE:
+ switch (val) {
+ case yes:
+ ch = '*';
+ break;
+ case mod:
+ ch = 'M';
+ break;
+ default:
+ ch = ' ';
+ break;
+ }
+ if (sym_is_changable(sym)) {
+ if (sym->rev_dep.tri == mod)
+ item_make(menu,
+ 't', "{%c}", ch);
+ else
+ item_make(menu,
+ 't', "<%c>", ch);
+ } else
+ item_make(menu, 't', "-%c-", ch);
+ break;
+ default:
+ tmp = 2 + strlen(sym_get_string_value(sym));
+ item_make(menu, 's', " (%s)",
+ sym_get_string_value(sym));
+ tmp = indent - tmp + 4;
+ if (tmp < 0)
+ tmp = 0;
+ item_add_str("%*c%s%s", tmp, ' ',
+ _(menu_get_prompt(menu)),
+ (sym_has_value(sym) ||
+ !sym_is_changable(sym)) ? "" :
+ _(" (NEW)"));
+ goto conf_childs;
+ }
+ }
+ item_add_str("%*c%s%s", indent + 1, ' ',
+ _(menu_get_prompt(menu)),
+ (sym_has_value(sym) || !sym_is_changable(sym)) ?
+ "" : _(" (NEW)"));
+ if (menu->prompt && menu->prompt->type == P_MENU) {
+ item_add_str(" --->");
+ return;
+ }
+ }
+
+conf_childs:
+ indent += doint;
+ for (child = menu->list; child; child = child->next)
+ build_conf(child);
+ indent -= doint;
+}
+
+static void reset_menu(void)
+{
+ unpost_menu(curses_menu);
+ clean_items();
+}
+
+/* adjust the menu to show this item.
+ * prefer not to scroll the menu if possible*/
+static void center_item(int selected_index, int *last_top_row)
+{
+ int toprow;
+ int maxy, maxx;
+
+ scale_menu(curses_menu, &maxy, &maxx);
+ set_top_row(curses_menu, *last_top_row);
+ toprow = top_row(curses_menu);
+ if (selected_index >= toprow && selected_index < toprow+maxy) {
+ /* we can only move the selected item. no need to scroll */
+ set_current_item(curses_menu,
+ curses_menu_items[selected_index]);
+ } else {
+ toprow = max(selected_index-maxy/2, 0);
+ if (toprow >= item_count(curses_menu)-maxy)
+ toprow = item_count(curses_menu)-mwin_max_lines;
+ set_top_row(curses_menu, toprow);
+ set_current_item(curses_menu,
+ curses_menu_items[selected_index]);
+ }
+ *last_top_row = toprow;
+ post_menu(curses_menu);
+ refresh_all_windows(main_window);
+}
+
+/* this function assumes reset_menu has been called before */
+static void show_menu(const char *prompt, const char *instructions,
+ int selected_index, int *last_top_row)
+{
+ int maxx, maxy;
+ WINDOW *menu_window;
+
+ current_instructions = instructions;
+
+ clear();
+ wattrset(main_window, attributes[NORMAL]);
+ print_in_middle(stdscr, 1, 0, COLS,
+ menu_backtitle,
+ attributes[MAIN_HEADING]);
+
+ wattrset(main_window, attributes[MAIN_MENU_BOX]);
+ box(main_window, 0, 0);
+ wattrset(main_window, attributes[MAIN_MENU_HEADING]);
+ mvwprintw(main_window, 0, 3, " %s ", prompt);
+ wattrset(main_window, attributes[NORMAL]);
+
+ set_menu_items(curses_menu, curses_menu_items);
+
+ /* position the menu at the middle of the screen */
+ scale_menu(curses_menu, &maxy, &maxx);
+ maxx = min(maxx, mwin_max_cols-2);
+ maxy = mwin_max_lines-2;
+ menu_window = derwin(main_window,
+ maxy,
+ maxx,
+ 2,
+ (mwin_max_cols-maxx)/2);
+ keypad(menu_window, TRUE);
+ set_menu_win(curses_menu, menu_window);
+ set_menu_sub(curses_menu, menu_window);
+
+ /* must reassert this after changing items, otherwise returns to a
+ * default of 16
+ */
+ set_menu_format(curses_menu, maxy, 1);
+ center_item(selected_index, last_top_row);
+ set_menu_format(curses_menu, maxy, 1);
+
+ print_function_line();
+
+ /* Post the menu */
+ post_menu(curses_menu);
+ refresh_all_windows(main_window);
+}
+
+
+static void conf(struct menu *menu)
+{
+ char pattern[256];
+ struct menu *submenu = 0;
+ const char *prompt = menu_get_prompt(menu);
+ struct symbol *sym;
+ struct menu *active_menu = NULL;
+ int res;
+ int current_index = 0;
+ int last_top_row = 0;
+
+ bzero(pattern, sizeof(pattern));
+
+ while (!global_exit) {
+ reset_menu();
+ current_menu = menu;
+ build_conf(menu);
+ if (!child_count)
+ break;
+
+ show_menu(prompt ? _(prompt) : _("Main Menu"),
+ _(menu_instructions),
+ current_index, &last_top_row);
+ keypad((menu_win(curses_menu)), TRUE);
+ while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+ if (process_special_keys(&res,
+ (struct menu *) item_data()))
+ break;
+ switch (res) {
+ case KEY_DOWN:
+ menu_driver(curses_menu, REQ_DOWN_ITEM);
+ break;
+ case KEY_UP:
+ menu_driver(curses_menu, REQ_UP_ITEM);
+ break;
+ case KEY_NPAGE:
+ menu_driver(curses_menu, REQ_SCR_DPAGE);
+ break;
+ case KEY_PPAGE:
+ menu_driver(curses_menu, REQ_SCR_UPAGE);
+ break;
+ case KEY_HOME:
+ menu_driver(curses_menu, REQ_FIRST_ITEM);
+ break;
+ case KEY_END:
+ menu_driver(curses_menu, REQ_LAST_ITEM);
+ break;
+ case 'h':
+ case '?':
+ show_help((struct menu *) item_data());
+ break;
+ }
+ if (res == 10 || res == 27 ||
+ res == 32 || res == 'n' || res == 'y' ||
+ res == KEY_LEFT || res == KEY_RIGHT ||
+ res == 'm' || res == '/')
+ break;
+ else if (canbhot(res)) {
+ /* check for hot keys: */
+ int tmp = get_next_hot(res);
+ if (tmp != -1)
+ center_item(tmp, &last_top_row);
+ }
+ refresh_all_windows(main_window);
+ }
+
+ refresh_all_windows(main_window);
+ /* if ESC or left*/
+ if (res == 27 || (menu != &rootmenu && res == KEY_LEFT))
+ break;
+
+ /* remember location in the menu */
+ last_top_row = top_row(curses_menu);
+ current_index = curses_item_index();
+
+ if (!item_tag())
+ continue;
+
+ submenu = (struct menu *) item_data();
+ active_menu = (struct menu *)item_data();
+ if (!submenu || !menu_is_visible(submenu))
+ continue;
+ if (submenu)
+ sym = submenu->sym;
+ else
+ sym = NULL;
+
+ switch (res) {
+ case ' ':
+ if (item_is_tag('t'))
+ sym_toggle_tristate_value(sym);
+ else if (item_is_tag('m'))
+ conf(submenu);
+ break;
+ case KEY_RIGHT:
+ case 10: /* ENTER WAS PRESSED */
+ switch (item_tag()) {
+ case 'm':
+ if (single_menu_mode)
+ submenu->data =
+ (void *) (long) !submenu->data;
+ else
+ conf(submenu);
+ break;
+ case 't':
+ if (sym_is_choice(sym) &&
+ sym_get_tristate_value(sym) == yes)
+ conf_choice(submenu);
+ else if (submenu->prompt &&
+ submenu->prompt->type == P_MENU)
+ conf(submenu);
+ else if (res == 10)
+ sym_toggle_tristate_value(sym);
+ break;
+ case 's':
+ conf_string(submenu);
+ break;
+ }
+ break;
+ case 'y':
+ if (item_is_tag('t')) {
+ if (sym_set_tristate_value(sym, yes))
+ break;
+ if (sym_set_tristate_value(sym, mod))
+ btn_dialog(main_window, setmod_text, 0);
+ }
+ break;
+ case 'n':
+ if (item_is_tag('t'))
+ sym_set_tristate_value(sym, no);
+ break;
+ case 'm':
+ if (item_is_tag('t'))
+ sym_set_tristate_value(sym, mod);
+ break;
+ case '/':
+ search_conf();
+ break;
+ }
+ }
+}
+
+static void show_help(struct menu *menu)
+{
+ struct gstr help = str_new();
+
+ if (menu && menu->sym && menu_has_help(menu)) {
+ if (menu->sym->name) {
+ str_printf(&help, "CONFIG_%s:\n\n", menu->sym->name);
+ str_append(&help, _(menu_get_help(menu)));
+ str_append(&help, "\n");
+ get_symbol_str(&help, menu->sym);
+ }
+ } else {
+ str_append(&help, nohelp_text);
+ }
+ show_scroll_win(main_window, _(menu_get_prompt(menu)), str_get(&help));
+ str_free(&help);
+}
+
+static void conf_choice(struct menu *menu)
+{
+ const char *prompt = _(menu_get_prompt(menu));
+ struct menu *child = 0;
+ struct symbol *active;
+ int selected_index = 0;
+ int last_top_row = 0;
+ int res, i = 0;
+
+ active = sym_get_choice_value(menu->sym);
+ /* this is mostly duplicated from the conf() function. */
+ while (!global_exit) {
+ reset_menu();
+
+ for (i = 0, child = menu->list; child; child = child->next) {
+ if (!show_all_items && !menu_is_visible(child))
+ continue;
+
+ if (child->sym == sym_get_choice_value(menu->sym))
+ item_make(child, ':', "<X> %s",
+ _(menu_get_prompt(child)));
+ else
+ item_make(child, ':', " %s",
+ _(menu_get_prompt(child)));
+ if (child->sym == active){
+ last_top_row = top_row(curses_menu);
+ selected_index = i;
+ }
+ i++;
+ }
+ show_menu(prompt ? _(prompt) : _("Choice Menu"),
+ _(radiolist_instructions),
+ selected_index,
+ &last_top_row);
+ while (!global_exit && (res = wgetch(menu_win(curses_menu)))) {
+ if (process_special_keys(
+ &res,
+ (struct menu *) item_data()))
+ break;
+ switch (res) {
+ case KEY_DOWN:
+ menu_driver(curses_menu, REQ_DOWN_ITEM);
+ break;
+ case KEY_UP:
+ menu_driver(curses_menu, REQ_UP_ITEM);
+ break;
+ case KEY_NPAGE:
+ menu_driver(curses_menu, REQ_SCR_DPAGE);
+ break;
+ case KEY_PPAGE:
+ menu_driver(curses_menu, REQ_SCR_UPAGE);
+ break;
+ case KEY_HOME:
+ menu_driver(curses_menu, REQ_FIRST_ITEM);
+ break;
+ case KEY_END:
+ menu_driver(curses_menu, REQ_LAST_ITEM);
+ break;
+ case 'h':
+ case '?':
+ show_help((struct menu *) item_data());
+ break;
+ }
+ if (res == 10 || res == 27 || res == ' ' ||
+ res == KEY_LEFT)
+ break;
+ else if (canbhot(res)) {
+ /* check for hot keys: */
+ int tmp = get_next_hot(res);
+ if (tmp != -1)
+ center_item(tmp, &last_top_row);
+ }
+ refresh_all_windows(main_window);
+ }
+ /* if ESC or left */
+ if (res == 27 || res == KEY_LEFT)
+ break;
+
+ child = item_data();
+ if (!child || !menu_is_visible(child))
+ continue;
+ switch (res) {
+ case ' ':
+ case 10:
+ case KEY_RIGHT:
+ sym_set_tristate_value(child->sym, yes);
+ return;
+ case 'h':
+ case '?':
+ show_help(child);
+ active = child->sym;
+ break;
+ case KEY_EXIT:
+ return;
+ }
+ }
+}
+
+static void conf_string(struct menu *menu)
+{
+ const char *prompt = menu_get_prompt(menu);
+ char dialog_input_result[256];
+
+ while (1) {
+ int res;
+ const char *heading;
+
+ switch (sym_get_type(menu->sym)) {
+ case S_INT:
+ heading = _(inputbox_instructions_int);
+ break;
+ case S_HEX:
+ heading = _(inputbox_instructions_hex);
+ break;
+ case S_STRING:
+ heading = _(inputbox_instructions_string);
+ break;
+ default:
+ heading = _("Internal nconf error!");
+ }
+ res = dialog_inputbox(main_window,
+ prompt ? _(prompt) : _("Main Menu"),
+ heading,
+ sym_get_string_value(menu->sym),
+ dialog_input_result,
+ sizeof(dialog_input_result));
+ switch (res) {
+ case 0:
+ if (sym_set_string_value(menu->sym,
+ dialog_input_result))
+ return;
+ btn_dialog(main_window,
+ _("You have made an invalid entry."), 0);
+ break;
+ case 1:
+ show_help(menu);
+ break;
+ case KEY_EXIT:
+ return;
+ }
+ }
+}
+
+static void conf_load(void)
+{
+ char dialog_input_result[256];
+ while (1) {
+ int res;
+ res = dialog_inputbox(main_window,
+ NULL, load_config_text,
+ filename,
+ dialog_input_result,
+ sizeof(dialog_input_result));
+ switch (res) {
+ case 0:
+ if (!dialog_input_result[0])
+ return;
+ if (!conf_read(dialog_input_result)) {
+ set_config_filename(dialog_input_result);
+ sym_set_change_count(1);
+ return;
+ }
+ btn_dialog(main_window, _("File does not exist!"), 0);
+ break;
+ case 1:
+ show_scroll_win(main_window,
+ _("Load Alternate Configuration"),
+ load_config_help);
+ break;
+ case KEY_EXIT:
+ return;
+ }
+ }
+}
+
+static void conf_save(void)
+{
+ char dialog_input_result[256];
+ while (1) {
+ int res;
+ res = dialog_inputbox(main_window,
+ NULL, save_config_text,
+ filename,
+ dialog_input_result,
+ sizeof(dialog_input_result));
+ switch (res) {
+ case 0:
+ if (!dialog_input_result[0])
+ return;
+ supress_stdout(0);
+ res = conf_write(dialog_input_result);
+ supress_stdout(1);
+ if (!res) {
+ char buf[1024];
+ sprintf(buf, "%s %s",
+ _("configuration file saved to: "),
+ dialog_input_result);
+ btn_dialog(main_window,
+ buf, 1, "<OK>");
+ set_config_filename(dialog_input_result);
+ return;
+ }
+ btn_dialog(main_window, _("Can't create file! "
+ "Probably a nonexistent directory."),
+ 1, "<OK>");
+ break;
+ case 1:
+ show_scroll_win(main_window,
+ _("Save Alternate Configuration"),
+ save_config_help);
+ break;
+ case KEY_EXIT:
+ return;
+ }
+ }
+}
+
+void setup_windows(void)
+{
+ if (main_window != NULL)
+ delwin(main_window);
+
+ /* set up the menu and menu window */
+ main_window = newwin(LINES-2, COLS-2, 2, 1);
+ keypad(main_window, TRUE);
+ mwin_max_lines = LINES-6;
+ mwin_max_cols = COLS-6;
+
+ /* panels order is from bottom to top */
+ new_panel(main_window);
+}
+
+int main(int ac, char **av)
+{
+ char *mode;
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+
+ conf_parse(av[1]);
+ conf_read(NULL);
+
+ mode = getenv("NCONFIG_MODE");
+ if (mode) {
+ if (!strcasecmp(mode, "single_menu"))
+ single_menu_mode = 1;
+ }
+
+ /* Initialize curses */
+ initscr();
+ /* set color theme */
+ set_colors();
+
+ cbreak();
+ noecho();
+ keypad(stdscr, TRUE);
+ curs_set(0);
+
+ if (COLS < 75 || LINES < 20) {
+ endwin();
+ printf("Your terminal should have at "
+ "least 20 lines and 75 columns\n");
+ return 1;
+ }
+
+ notimeout(stdscr, FALSE);
+ ESCDELAY = 1;
+
+ /* set btns menu */
+ curses_menu = new_menu(curses_menu_items);
+ menu_opts_off(curses_menu, O_SHOWDESC);
+ menu_opts_off(curses_menu, O_SHOWMATCH);
+ menu_opts_on(curses_menu, O_ONEVALUE);
+ menu_opts_on(curses_menu, O_NONCYCLIC);
+ set_menu_mark(curses_menu, " ");
+ set_menu_fore(curses_menu, attributes[MAIN_MENU_FORE]);
+ set_menu_back(curses_menu, attributes[MAIN_MENU_BACK]);
+ set_menu_grey(curses_menu, attributes[MAIN_MENU_GREY]);
+
+ set_config_filename(conf_get_configname());
+ setup_windows();
+
+ /* check for KEY_FUNC(1) */
+ if (has_key(KEY_F(1)) == FALSE) {
+ show_scroll_win(main_window,
+ _("Instructions"),
+ _(menu_no_f_instructions));
+ }
+
+
+
+ /* do the work */
+ while (!global_exit) {
+ conf(&rootmenu);
+ if (!global_exit && do_exit() == 0)
+ break;
+ }
+ /* ok, we are done */
+ unpost_menu(curses_menu);
+ free_menu(curses_menu);
+ delwin(main_window);
+ clear();
+ refresh();
+ endwin();
+ return 0;
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 20:32:59 +0000