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-rw-r--r--scripts/kconfig/mconf.c782
1 files changed, 782 insertions, 0 deletions
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
new file mode 100644
index 000000000..807969e7f
--- /dev/null
+++ b/scripts/kconfig/mconf.c
@@ -0,0 +1,782 @@
+/*
+ * 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>
+ */
+
+#include <sys/ioctl.h>
+#include <sys/wait.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>
+
+#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> includes, <N> excludes, <M> modularizes features. "
+ "Press <Esc><Esc> to exit, <?> for Help. "
+ "Legend: [*] built-in [ ] excluded <M> module < > module capable",
+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 kernel 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 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[] =
+ "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 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"
+;
+
+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;
+
+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 cprint_init(void);
+static int cprint1(const char *fmt, ...);
+static void cprint_done(void);
+static int cprint(const char *fmt, ...);
+
+static void init_wsize(void)
+{
+ struct winsize ws;
+ char *env;
+
+ if (ioctl(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 cprint_init(void)
+{
+ bufptr = buf;
+ argptr = args;
+ memset(args, 0, sizeof(args));
+ indent = 0;
+ child_count = 0;
+ cprint("./scripts/lxdialog/lxdialog");
+ cprint("--backtitle");
+ cprint(menu_backtitle);
+}
+
+static int cprint1(const char *fmt, ...)
+{
+ va_list ap;
+ int res;
+
+ if (!*argptr)
+ *argptr = bufptr;
+ va_start(ap, fmt);
+ res = vsprintf(bufptr, fmt, ap);
+ va_end(ap);
+ bufptr += res;
+
+ return res;
+}
+
+static void cprint_done(void)
+{
+ *bufptr++ = 0;
+ argptr++;
+}
+
+static int cprint(const char *fmt, ...)
+{
+ va_list ap;
+ int res;
+
+ *argptr++ = bufptr;
+ va_start(ap, fmt);
+ res = vsprintf(bufptr, fmt, ap);
+ va_end(ap);
+ bufptr += res;
+ *bufptr++ = 0;
+
+ return res;
+}
+
+pid_t pid;
+
+static void winch_handler(int sig)
+{
+ if (!do_resize) {
+ kill(pid, SIGINT);
+ do_resize = 1;
+ }
+}
+
+static int exec_conf(void)
+{
+ int pipefd[2], stat, size;
+ struct sigaction sa;
+ sigset_t sset, osset;
+
+ sigemptyset(&sset);
+ sigaddset(&sset, SIGINT);
+ sigprocmask(SIG_BLOCK, &sset, &osset);
+
+ signal(SIGINT, SIG_DFL);
+
+ sa.sa_handler = winch_handler;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = SA_RESTART;
+ sigaction(SIGWINCH, &sa, NULL);
+
+ *argptr++ = NULL;
+
+ pipe(pipefd);
+ pid = fork();
+ if (pid == 0) {
+ sigprocmask(SIG_SETMASK, &osset, NULL);
+ dup2(pipefd[1], 2);
+ close(pipefd[0]);
+ close(pipefd[1]);
+ execv(args[0], args);
+ _exit(EXIT_FAILURE);
+ }
+
+ close(pipefd[1]);
+ bufptr = input_buf;
+ while (1) {
+ size = input_buf + sizeof(input_buf) - bufptr;
+ size = read(pipefd[0], bufptr, size);
+ if (size <= 0) {
+ if (size < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ perror("read");
+ }
+ break;
+ }
+ bufptr += size;
+ }
+ *bufptr++ = 0;
+ close(pipefd[0]);
+ waitpid(pid, &stat, 0);
+
+ if (do_resize) {
+ init_wsize();
+ do_resize = 0;
+ sigprocmask(SIG_SETMASK, &osset, NULL);
+ return -1;
+ }
+ if (WIFSIGNALED(stat)) {
+ printf("\finterrupted(%d)\n", WTERMSIG(stat));
+ exit(1);
+ }
+#if 0
+ printf("\fexit state: %d\nexit data: '%s'\n", WEXITSTATUS(stat), input_buf);
+ sleep(1);
+#endif
+ sigpending(&sset);
+ if (sigismember(&sset, SIGINT)) {
+ printf("\finterrupted\n");
+ exit(1);
+ }
+ sigprocmask(SIG_SETMASK, &osset, NULL);
+
+ return WEXITSTATUS(stat);
+}
+
+static void 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++;
+ cprint("m%p", menu);
+
+ if (single_menu_mode) {
+ cprint1("%s%*c%s",
+ menu->data ? "-->" : "++>",
+ indent + 1, ' ', prompt);
+ } else {
+ if (menu->parent != &rootmenu)
+ cprint1(" %*c", indent + 1, ' ');
+ cprint1("%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);
+ }
+ }
+ } 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)) {
+ cprint("t%p", menu);
+ switch (type) {
+ case S_BOOLEAN:
+ cprint1("[%c]", val == no ? ' ' : '*');
+ break;
+ case S_TRISTATE:
+ switch (val) {
+ case yes: ch = '*'; break;
+ case mod: ch = 'M'; break;
+ default: ch = ' '; break;
+ }
+ cprint1("<%c>", ch);
+ break;
+ }
+ } else {
+ cprint("%c%p", def_menu ? 't' : ':', menu);
+ cprint1(" ");
+ }
+
+ cprint1("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
+ if (val == yes) {
+ if (def_menu) {
+ cprint1(" (%s)", menu_get_prompt(def_menu));
+ cprint1(" --->");
+ cprint_done();
+ 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(" ");
+ } else {
+ switch (type) {
+ case S_BOOLEAN:
+ cprint("t%p", menu);
+ cprint1("[%c]", val == no ? ' ' : '*');
+ break;
+ case S_TRISTATE:
+ cprint("t%p", menu);
+ switch (val) {
+ case yes: ch = '*'; break;
+ case mod: ch = 'M'; break;
+ default: ch = ' '; break;
+ }
+ cprint1("<%c>", ch);
+ break;
+ default:
+ cprint("s%p", menu);
+ tmp = cprint1("(%s)", sym_get_string_value(sym));
+ tmp = indent - tmp + 4;
+ if (tmp < 0)
+ tmp = 0;
+ cprint1("%*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),
+ sym_has_value(sym) ? "" : " (NEW)");
+ cprint_done();
+ }
+
+conf_childs:
+ indent += doint;
+ for (child = menu->list; child; child = child->next)
+ build_conf(child);
+ indent -= doint;
+}
+
+static void conf(struct menu *menu)
+{
+ struct menu *submenu;
+ const char *prompt = menu_get_prompt(menu);
+ struct symbol *sym;
+ char active_entry[40];
+ int stat, type, i;
+
+ 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);
+ current_menu = menu;
+ 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();
+ if (stat < 0)
+ continue;
+
+ if (stat == 1 || stat == 255)
+ break;
+
+ type = input_buf[0];
+ if (!type)
+ continue;
+
+ for (i = 0; input_buf[i] && !isspace(input_buf[i]); i++)
+ ;
+ if (i >= sizeof(active_entry))
+ i = sizeof(active_entry) - 1;
+ input_buf[i] = 0;
+ strcpy(active_entry, input_buf);
+
+ sym = NULL;
+ submenu = NULL;
+ if (sscanf(input_buf + 1, "%p", &submenu) == 1)
+ sym = submenu->sym;
+
+ switch (stat) {
+ case 0:
+ switch (type) {
+ case 'm':
+ if (single_menu_mode)
+ submenu->data = (void *) !submenu->data;
+ else
+ conf(submenu);
+ break;
+ case 't':
+ if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
+ conf_choice(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);
+ 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);
+ 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, "CONFIG_%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)
+{
+ do {
+ cprint_init();
+ cprint("--textbox");
+ cprint("scripts/README.Menuconfig");
+ cprint("%d", rows);
+ cprint("%d", cols);
+ } while (exec_conf() == -1);
+}
+
+static void conf_choice(struct menu *menu)
+{
+ 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);
+ 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");
+ }
+
+ stat = exec_conf();
+ switch (stat) {
+ case 0:
+ if (sscanf(input_buf, "%p", &menu) != 1)
+ break;
+ sym_set_tristate_value(menu->sym, yes);
+ return;
+ case 1:
+ show_help(menu);
+ break;
+ case 255:
+ return;
+ }
+ }
+}
+
+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");
+ switch (sym_get_type(menu->sym)) {
+ case S_INT:
+ cprint(inputbox_instructions_int);
+ break;
+ case S_HEX:
+ cprint(inputbox_instructions_hex);
+ break;
+ case S_STRING:
+ cprint(inputbox_instructions_string);
+ break;
+ default:
+ /* panic? */;
+ }
+ cprint("10");
+ cprint("75");
+ cprint("%s", sym_get_string_value(menu->sym));
+ stat = exec_conf();
+ switch (stat) {
+ case 0:
+ if (sym_set_string_value(menu->sym, input_buf))
+ return;
+ show_textbox(NULL, "You have made an invalid entry.", 5, 43);
+ break;
+ case 1:
+ show_help(menu);
+ break;
+ case 255:
+ return;
+ }
+ }
+}
+
+static void conf_load(void)
+{
+ int stat;
+
+ while (1) {
+ cprint_init();
+ cprint("--inputbox");
+ cprint(load_config_text);
+ cprint("11");
+ cprint("55");
+ cprint("%s", filename);
+ stat = exec_conf();
+ switch(stat) {
+ case 0:
+ if (!input_buf[0])
+ return;
+ if (!conf_read(input_buf))
+ return;
+ show_textbox(NULL, "File does not exist!", 5, 38);
+ break;
+ case 1:
+ show_helptext("Load Alternate Configuration", load_config_help);
+ break;
+ case 255:
+ return;
+ }
+ }
+}
+
+static void conf_save(void)
+{
+ int stat;
+
+ while (1) {
+ cprint_init();
+ cprint("--inputbox");
+ cprint(save_config_text);
+ cprint("11");
+ cprint("55");
+ cprint("%s", filename);
+ stat = exec_conf();
+ switch(stat) {
+ case 0:
+ if (!input_buf[0])
+ return;
+ if (!conf_write(input_buf))
+ 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");
+ unlink("lxdialog.scrltmp");
+}
+
+int main(int ac, char **av)
+{
+ struct symbol *sym;
+ char *mode;
+ int stat;
+
+ conf_parse(av[1]);
+ conf_read(NULL);
+
+ sym = sym_lookup("KERNELRELEASE", 0);
+ sym_calc_value(sym);
+ sprintf(menu_backtitle, "%s v%s.%s.%s%s Configuration",
+ getenv("PROJECT"),
+ getenv("VERSION"), getenv("PATCHLEVEL"),
+ getenv("SUBLEVEL"), getenv("EXTRAVERSION"));
+
+ mode = getenv("MENUCONFIG_MODE");
+ if (mode) {
+ if (!strcasecmp(mode, "single_menu"))
+ single_menu_mode = 1;
+ }
+
+ tcgetattr(1, &ios_org);
+ atexit(conf_cleanup);
+ init_wsize();
+ conf(&rootmenu);
+
+ do {
+ cprint_init();
+ cprint("--yesno");
+ cprint("Do you wish to save your new configuration?");
+ cprint("5");
+ cprint("60");
+ stat = exec_conf();
+ } while (stat < 0);
+
+ if (stat == 0) {
+ conf_write(NULL);
+ printf("\n\n"
+ "*** End of configuration.\n"
+ "*** Check the top-level Makefile for additional configuration.\n"
+ "*** Next, you may run 'make'.\n\n");
+ } else
+ printf("\n\nYour configuration changes were NOT saved.\n\n");
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-20 02:21:35 +0000