Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0+
/*
 *  util.c
 *
 *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
 *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
 */
 
#include <stdarg.h>
 
#include "dialog.h"
 
/* Needed in signal handler in mconf.c */
int saved_x, saved_y;
 
struct dialog_info dlg;
 
static void set_mono_theme(void)
{
<------>dlg.screen.atr = A_NORMAL;
<------>dlg.shadow.atr = A_NORMAL;
<------>dlg.dialog.atr = A_NORMAL;
<------>dlg.title.atr = A_BOLD;
<------>dlg.border.atr = A_NORMAL;
<------>dlg.button_active.atr = A_REVERSE;
<------>dlg.button_inactive.atr = A_DIM;
<------>dlg.button_key_active.atr = A_REVERSE;
<------>dlg.button_key_inactive.atr = A_BOLD;
<------>dlg.button_label_active.atr = A_REVERSE;
<------>dlg.button_label_inactive.atr = A_NORMAL;
<------>dlg.inputbox.atr = A_NORMAL;
<------>dlg.inputbox_border.atr = A_NORMAL;
<------>dlg.searchbox.atr = A_NORMAL;
<------>dlg.searchbox_title.atr = A_BOLD;
<------>dlg.searchbox_border.atr = A_NORMAL;
<------>dlg.position_indicator.atr = A_BOLD;
<------>dlg.menubox.atr = A_NORMAL;
<------>dlg.menubox_border.atr = A_NORMAL;
<------>dlg.item.atr = A_NORMAL;
<------>dlg.item_selected.atr = A_REVERSE;
<------>dlg.tag.atr = A_BOLD;
<------>dlg.tag_selected.atr = A_REVERSE;
<------>dlg.tag_key.atr = A_BOLD;
<------>dlg.tag_key_selected.atr = A_REVERSE;
<------>dlg.check.atr = A_BOLD;
<------>dlg.check_selected.atr = A_REVERSE;
<------>dlg.uarrow.atr = A_BOLD;
<------>dlg.darrow.atr = A_BOLD;
}
 
#define DLG_COLOR(dialog, f, b, h) \
do {                               \
<------>dlg.dialog.fg = (f);       \
<------>dlg.dialog.bg = (b);       \
<------>dlg.dialog.hl = (h);       \
} while (0)
 
static void set_classic_theme(void)
{
<------>DLG_COLOR(screen,                COLOR_CYAN,   COLOR_BLUE,   true);
<------>DLG_COLOR(shadow,                COLOR_BLACK,  COLOR_BLACK,  true);
<------>DLG_COLOR(dialog,                COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(title,                 COLOR_YELLOW, COLOR_WHITE,  true);
<------>DLG_COLOR(border,                COLOR_WHITE,  COLOR_WHITE,  true);
<------>DLG_COLOR(button_active,         COLOR_WHITE,  COLOR_BLUE,   true);
<------>DLG_COLOR(button_inactive,       COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(button_key_active,     COLOR_WHITE,  COLOR_BLUE,   true);
<------>DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_WHITE,  false);
<------>DLG_COLOR(button_label_active,   COLOR_YELLOW, COLOR_BLUE,   true);
<------>DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_WHITE,  true);
<------>DLG_COLOR(inputbox,              COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(inputbox_border,       COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(searchbox,             COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(searchbox_title,       COLOR_YELLOW, COLOR_WHITE,  true);
<------>DLG_COLOR(searchbox_border,      COLOR_WHITE,  COLOR_WHITE,  true);
<------>DLG_COLOR(position_indicator,    COLOR_YELLOW, COLOR_WHITE,  true);
<------>DLG_COLOR(menubox,               COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(menubox_border,        COLOR_WHITE,  COLOR_WHITE,  true);
<------>DLG_COLOR(item,                  COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(item_selected,         COLOR_WHITE,  COLOR_BLUE,   true);
<------>DLG_COLOR(tag,                   COLOR_YELLOW, COLOR_WHITE,  true);
<------>DLG_COLOR(tag_selected,          COLOR_YELLOW, COLOR_BLUE,   true);
<------>DLG_COLOR(tag_key,               COLOR_YELLOW, COLOR_WHITE,  true);
<------>DLG_COLOR(tag_key_selected,      COLOR_YELLOW, COLOR_BLUE,   true);
<------>DLG_COLOR(check,                 COLOR_BLACK,  COLOR_WHITE,  false);
<------>DLG_COLOR(check_selected,        COLOR_WHITE,  COLOR_BLUE,   true);
<------>DLG_COLOR(uarrow,                COLOR_GREEN,  COLOR_WHITE,  true);
<------>DLG_COLOR(darrow,                COLOR_GREEN,  COLOR_WHITE,  true);
}
 
static void set_blackbg_theme(void)
{
<------>DLG_COLOR(screen, COLOR_RED,   COLOR_BLACK, true);
<------>DLG_COLOR(shadow, COLOR_BLACK, COLOR_BLACK, false);
<------>DLG_COLOR(dialog, COLOR_WHITE, COLOR_BLACK, false);
<------>DLG_COLOR(title,  COLOR_RED,   COLOR_BLACK, false);
<------>DLG_COLOR(border, COLOR_BLACK, COLOR_BLACK, true);
 
<------>DLG_COLOR(button_active,         COLOR_YELLOW, COLOR_RED,   false);
<------>DLG_COLOR(button_inactive,       COLOR_YELLOW, COLOR_BLACK, false);
<------>DLG_COLOR(button_key_active,     COLOR_YELLOW, COLOR_RED,   true);
<------>DLG_COLOR(button_key_inactive,   COLOR_RED,    COLOR_BLACK, false);
<------>DLG_COLOR(button_label_active,   COLOR_WHITE,  COLOR_RED,   false);
<------>DLG_COLOR(button_label_inactive, COLOR_BLACK,  COLOR_BLACK, true);
 
<------>DLG_COLOR(inputbox,         COLOR_YELLOW, COLOR_BLACK, false);
<------>DLG_COLOR(inputbox_border,  COLOR_YELLOW, COLOR_BLACK, false);
 
<------>DLG_COLOR(searchbox,        COLOR_YELLOW, COLOR_BLACK, false);
<------>DLG_COLOR(searchbox_title,  COLOR_YELLOW, COLOR_BLACK, true);
<------>DLG_COLOR(searchbox_border, COLOR_BLACK,  COLOR_BLACK, true);
 
<------>DLG_COLOR(position_indicator, COLOR_RED, COLOR_BLACK,  false);
 
<------>DLG_COLOR(menubox,          COLOR_YELLOW, COLOR_BLACK, false);
<------>DLG_COLOR(menubox_border,   COLOR_BLACK,  COLOR_BLACK, true);
 
<------>DLG_COLOR(item,             COLOR_WHITE, COLOR_BLACK, false);
<------>DLG_COLOR(item_selected,    COLOR_WHITE, COLOR_RED,   false);
 
<------>DLG_COLOR(tag,              COLOR_RED,    COLOR_BLACK, false);
<------>DLG_COLOR(tag_selected,     COLOR_YELLOW, COLOR_RED,   true);
<------>DLG_COLOR(tag_key,          COLOR_RED,    COLOR_BLACK, false);
<------>DLG_COLOR(tag_key_selected, COLOR_YELLOW, COLOR_RED,   true);
 
<------>DLG_COLOR(check,            COLOR_YELLOW, COLOR_BLACK, false);
<------>DLG_COLOR(check_selected,   COLOR_YELLOW, COLOR_RED,   true);
 
<------>DLG_COLOR(uarrow, COLOR_RED, COLOR_BLACK, false);
<------>DLG_COLOR(darrow, COLOR_RED, COLOR_BLACK, false);
}
 
static void set_bluetitle_theme(void)
{
<------>set_classic_theme();
<------>DLG_COLOR(title,               COLOR_BLUE,   COLOR_WHITE, true);
<------>DLG_COLOR(button_key_active,   COLOR_YELLOW, COLOR_BLUE,  true);
<------>DLG_COLOR(button_label_active, COLOR_WHITE,  COLOR_BLUE,  true);
<------>DLG_COLOR(searchbox_title,     COLOR_BLUE,   COLOR_WHITE, true);
<------>DLG_COLOR(position_indicator,  COLOR_BLUE,   COLOR_WHITE, true);
<------>DLG_COLOR(tag,                 COLOR_BLUE,   COLOR_WHITE, true);
<------>DLG_COLOR(tag_key,             COLOR_BLUE,   COLOR_WHITE, true);
 
}
 
/*
 * Select color theme
 */
static int set_theme(const char *theme)
{
<------>int use_color = 1;
<------>if (!theme)
<------><------>set_bluetitle_theme();
<------>else if (strcmp(theme, "classic") == 0)
<------><------>set_classic_theme();
<------>else if (strcmp(theme, "bluetitle") == 0)
<------><------>set_bluetitle_theme();
<------>else if (strcmp(theme, "blackbg") == 0)
<------><------>set_blackbg_theme();
<------>else if (strcmp(theme, "mono") == 0)
<------><------>use_color = 0;
 
<------>return use_color;
}
 
static void init_one_color(struct dialog_color *color)
{
<------>static int pair = 0;
 
<------>pair++;
<------>init_pair(pair, color->fg, color->bg);
<------>if (color->hl)
<------><------>color->atr = A_BOLD | COLOR_PAIR(pair);
<------>else
<------><------>color->atr = COLOR_PAIR(pair);
}
 
static void init_dialog_colors(void)
{
<------>init_one_color(&dlg.screen);
<------>init_one_color(&dlg.shadow);
<------>init_one_color(&dlg.dialog);
<------>init_one_color(&dlg.title);
<------>init_one_color(&dlg.border);
<------>init_one_color(&dlg.button_active);
<------>init_one_color(&dlg.button_inactive);
<------>init_one_color(&dlg.button_key_active);
<------>init_one_color(&dlg.button_key_inactive);
<------>init_one_color(&dlg.button_label_active);
<------>init_one_color(&dlg.button_label_inactive);
<------>init_one_color(&dlg.inputbox);
<------>init_one_color(&dlg.inputbox_border);
<------>init_one_color(&dlg.searchbox);
<------>init_one_color(&dlg.searchbox_title);
<------>init_one_color(&dlg.searchbox_border);
<------>init_one_color(&dlg.position_indicator);
<------>init_one_color(&dlg.menubox);
<------>init_one_color(&dlg.menubox_border);
<------>init_one_color(&dlg.item);
<------>init_one_color(&dlg.item_selected);
<------>init_one_color(&dlg.tag);
<------>init_one_color(&dlg.tag_selected);
<------>init_one_color(&dlg.tag_key);
<------>init_one_color(&dlg.tag_key_selected);
<------>init_one_color(&dlg.check);
<------>init_one_color(&dlg.check_selected);
<------>init_one_color(&dlg.uarrow);
<------>init_one_color(&dlg.darrow);
}
 
/*
 * Setup for color display
 */
static void color_setup(const char *theme)
{
<------>int use_color;
 
<------>use_color = set_theme(theme);
<------>if (use_color && has_colors()) {
<------><------>start_color();
<------><------>init_dialog_colors();
<------>} else
<------><------>set_mono_theme();
}
 
/*
 * Set window to attribute 'attr'
 */
void attr_clear(WINDOW * win, int height, int width, chtype attr)
{
<------>int i, j;
 
<------>wattrset(win, attr);
<------>for (i = 0; i < height; i++) {
<------><------>wmove(win, i, 0);
<------><------>for (j = 0; j < width; j++)
<------><------><------>waddch(win, ' ');
<------>}
<------>touchwin(win);
}
 
void dialog_clear(void)
{
<------>int lines, columns;
 
<------>lines = getmaxy(stdscr);
<------>columns = getmaxx(stdscr);
 
<------>attr_clear(stdscr, lines, columns, dlg.screen.atr);
<------>/* Display background title if it exists ... - SLH */
<------>if (dlg.backtitle != NULL) {
<------><------>int i, len = 0, skip = 0;
<------><------>struct subtitle_list *pos;
 
<------><------>wattrset(stdscr, dlg.screen.atr);
<------><------>mvwaddstr(stdscr, 0, 1, (char *)dlg.backtitle);
 
<------><------>for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
<------><------><------>/* 3 is for the arrow and spaces */
<------><------><------>len += strlen(pos->text) + 3;
<------><------>}
 
<------><------>wmove(stdscr, 1, 1);
<------><------>if (len > columns - 2) {
<------><------><------>const char *ellipsis = "[...] ";
<------><------><------>waddstr(stdscr, ellipsis);
<------><------><------>skip = len - (columns - 2 - strlen(ellipsis));
<------><------>}
 
<------><------>for (pos = dlg.subtitles; pos != NULL; pos = pos->next) {
<------><------><------>if (skip == 0)
<------><------><------><------>waddch(stdscr, ACS_RARROW);
<------><------><------>else
<------><------><------><------>skip--;
 
<------><------><------>if (skip == 0)
<------><------><------><------>waddch(stdscr, ' ');
<------><------><------>else
<------><------><------><------>skip--;
 
<------><------><------>if (skip < strlen(pos->text)) {
<------><------><------><------>waddstr(stdscr, pos->text + skip);
<------><------><------><------>skip = 0;
<------><------><------>} else
<------><------><------><------>skip -= strlen(pos->text);
 
<------><------><------>if (skip == 0)
<------><------><------><------>waddch(stdscr, ' ');
<------><------><------>else
<------><------><------><------>skip--;
<------><------>}
 
<------><------>for (i = len + 1; i < columns - 1; i++)
<------><------><------>waddch(stdscr, ACS_HLINE);
<------>}
<------>wnoutrefresh(stdscr);
}
 
/*
 * Do some initialization for dialog
 */
int init_dialog(const char *backtitle)
{
<------>int height, width;
 
<------>initscr();		/* Init curses */
 
<------>/* Get current cursor position for signal handler in mconf.c */
<------>getyx(stdscr, saved_y, saved_x);
 
<------>getmaxyx(stdscr, height, width);
<------>if (height < WINDOW_HEIGTH_MIN || width < WINDOW_WIDTH_MIN) {
<------><------>endwin();
<------><------>return -ERRDISPLAYTOOSMALL;
<------>}
 
<------>dlg.backtitle = backtitle;
<------>color_setup(getenv("MENUCONFIG_COLOR"));
 
<------>keypad(stdscr, TRUE);
<------>cbreak();
<------>noecho();
<------>dialog_clear();
 
<------>return 0;
}
 
void set_dialog_backtitle(const char *backtitle)
{
<------>dlg.backtitle = backtitle;
}
 
void set_dialog_subtitles(struct subtitle_list *subtitles)
{
<------>dlg.subtitles = subtitles;
}
 
/*
 * End using dialog functions.
 */
void end_dialog(int x, int y)
{
<------>/* move cursor back to original position */
<------>move(y, x);
<------>refresh();
<------>endwin();
}
 
/* Print the title of the dialog. Center the title and truncate
 * tile if wider than dialog (- 2 chars).
 **/
void print_title(WINDOW *dialog, const char *title, int width)
{
<------>if (title) {
<------><------>int tlen = MIN(width - 2, strlen(title));
<------><------>wattrset(dialog, dlg.title.atr);
<------><------>mvwaddch(dialog, 0, (width - tlen) / 2 - 1, ' ');
<------><------>mvwaddnstr(dialog, 0, (width - tlen)/2, title, tlen);
<------><------>waddch(dialog, ' ');
<------>}
}
 
/*
 * Print a string of text in a window, automatically wrap around to the
 * next line if the string is too long to fit on one line. Newline
 * characters '\n' are propperly processed.  We start on a new line
 * if there is no room for at least 4 nonblanks following a double-space.
 */
void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x)
{
<------>int newl, cur_x, cur_y;
<------>int prompt_len, room, wlen;
<------>char tempstr[MAX_LEN + 1], *word, *sp, *sp2, *newline_separator = 0;
 
<------>strcpy(tempstr, prompt);
 
<------>prompt_len = strlen(tempstr);
 
<------>if (prompt_len <= width - x * 2) {	/* If prompt is short */
<------><------>wmove(win, y, (width - prompt_len) / 2);
<------><------>waddstr(win, tempstr);
<------>} else {
<------><------>cur_x = x;
<------><------>cur_y = y;
<------><------>newl = 1;
<------><------>word = tempstr;
<------><------>while (word && *word) {
<------><------><------>sp = strpbrk(word, "\n ");
<------><------><------>if (sp && *sp == '\n')
<------><------><------><------>newline_separator = sp;
 
<------><------><------>if (sp)
<------><------><------><------>*sp++ = 0;
 
<------><------><------>/* Wrap to next line if either the word does not fit,
<------><------><------>   or it is the first word of a new sentence, and it is
<------><------><------>   short, and the next word does not fit. */
<------><------><------>room = width - cur_x;
<------><------><------>wlen = strlen(word);
<------><------><------>if (wlen > room ||
<------><------><------>    (newl && wlen < 4 && sp
<------><------><------>     && wlen + 1 + strlen(sp) > room
<------><------><------>     && (!(sp2 = strpbrk(sp, "\n "))
<------><------><------><------> || wlen + 1 + (sp2 - sp) > room))) {
<------><------><------><------>cur_y++;
<------><------><------><------>cur_x = x;
<------><------><------>}
<------><------><------>wmove(win, cur_y, cur_x);
<------><------><------>waddstr(win, word);
<------><------><------>getyx(win, cur_y, cur_x);
 
<------><------><------>/* Move to the next line if the word separator was a newline */
<------><------><------>if (newline_separator) {
<------><------><------><------>cur_y++;
<------><------><------><------>cur_x = x;
<------><------><------><------>newline_separator = 0;
<------><------><------>} else
<------><------><------><------>cur_x++;
 
<------><------><------>if (sp && *sp == ' ') {
<------><------><------><------>cur_x++;	/* double space */
<------><------><------><------>while (*++sp == ' ') ;
<------><------><------><------>newl = 1;
<------><------><------>} else
<------><------><------><------>newl = 0;
<------><------><------>word = sp;
<------><------>}
<------>}
}
 
/*
 * Print a button
 */
void print_button(WINDOW * win, const char *label, int y, int x, int selected)
{
<------>int i, temp;
 
<------>wmove(win, y, x);
<------>wattrset(win, selected ? dlg.button_active.atr
<------><------> : dlg.button_inactive.atr);
<------>waddstr(win, "<");
<------>temp = strspn(label, " ");
<------>label += temp;
<------>wattrset(win, selected ? dlg.button_label_active.atr
<------><------> : dlg.button_label_inactive.atr);
<------>for (i = 0; i < temp; i++)
<------><------>waddch(win, ' ');
<------>wattrset(win, selected ? dlg.button_key_active.atr
<------><------> : dlg.button_key_inactive.atr);
<------>waddch(win, label[0]);
<------>wattrset(win, selected ? dlg.button_label_active.atr
<------><------> : dlg.button_label_inactive.atr);
<------>waddstr(win, (char *)label + 1);
<------>wattrset(win, selected ? dlg.button_active.atr
<------><------> : dlg.button_inactive.atr);
<------>waddstr(win, ">");
<------>wmove(win, y, x + temp + 1);
}
 
/*
 * Draw a rectangular box with line drawing characters
 */
void
draw_box(WINDOW * win, int y, int x, int height, int width,
<------> chtype box, chtype border)
{
<------>int i, j;
 
<------>wattrset(win, 0);
<------>for (i = 0; i < height; i++) {
<------><------>wmove(win, y + i, x);
<------><------>for (j = 0; j < width; j++)
<------><------><------>if (!i && !j)
<------><------><------><------>waddch(win, border | ACS_ULCORNER);
<------><------><------>else if (i == height - 1 && !j)
<------><------><------><------>waddch(win, border | ACS_LLCORNER);
<------><------><------>else if (!i && j == width - 1)
<------><------><------><------>waddch(win, box | ACS_URCORNER);
<------><------><------>else if (i == height - 1 && j == width - 1)
<------><------><------><------>waddch(win, box | ACS_LRCORNER);
<------><------><------>else if (!i)
<------><------><------><------>waddch(win, border | ACS_HLINE);
<------><------><------>else if (i == height - 1)
<------><------><------><------>waddch(win, box | ACS_HLINE);
<------><------><------>else if (!j)
<------><------><------><------>waddch(win, border | ACS_VLINE);
<------><------><------>else if (j == width - 1)
<------><------><------><------>waddch(win, box | ACS_VLINE);
<------><------><------>else
<------><------><------><------>waddch(win, box | ' ');
<------>}
}
 
/*
 * Draw shadows along the right and bottom edge to give a more 3D look
 * to the boxes
 */
void draw_shadow(WINDOW * win, int y, int x, int height, int width)
{
<------>int i;
 
<------>if (has_colors()) {	/* Whether terminal supports color? */
<------><------>wattrset(win, dlg.shadow.atr);
<------><------>wmove(win, y + height, x + 2);
<------><------>for (i = 0; i < width; i++)
<------><------><------>waddch(win, winch(win) & A_CHARTEXT);
<------><------>for (i = y + 1; i < y + height + 1; i++) {
<------><------><------>wmove(win, i, x + width);
<------><------><------>waddch(win, winch(win) & A_CHARTEXT);
<------><------><------>waddch(win, winch(win) & A_CHARTEXT);
<------><------>}
<------><------>wnoutrefresh(win);
<------>}
}
 
/*
 *  Return the position of the first alphabetic character in a string.
 */
int first_alpha(const char *string, const char *exempt)
{
<------>int i, in_paren = 0, c;
 
<------>for (i = 0; i < strlen(string); i++) {
<------><------>c = tolower(string[i]);
 
<------><------>if (strchr("<[(", c))
<------><------><------>++in_paren;
<------><------>if (strchr(">])", c) && in_paren > 0)
<------><------><------>--in_paren;
 
<------><------>if ((!in_paren) && isalpha(c) && strchr(exempt, c) == 0)
<------><------><------>return i;
<------>}
 
<------>return 0;
}
 
/*
 * ncurses uses ESC to detect escaped char sequences. This resutl in
 * a small timeout before ESC is actually delivered to the application.
 * lxdialog suggest <ESC> <ESC> which is correctly translated to two
 * times esc. But then we need to ignore the second esc to avoid stepping
 * out one menu too much. Filter away all escaped key sequences since
 * keypad(FALSE) turn off ncurses support for escape sequences - and thats
 * needed to make notimeout() do as expected.
 */
int on_key_esc(WINDOW *win)
{
<------>int key;
<------>int key2;
<------>int key3;
 
<------>nodelay(win, TRUE);
<------>keypad(win, FALSE);
<------>key = wgetch(win);
<------>key2 = wgetch(win);
<------>do {
<------><------>key3 = wgetch(win);
<------>} while (key3 != ERR);
<------>nodelay(win, FALSE);
<------>keypad(win, TRUE);
<------>if (key == KEY_ESC && key2 == ERR)
<------><------>return KEY_ESC;
<------>else if (key != ERR && key != KEY_ESC && key2 == ERR)
<------><------>ungetch(key);
 
<------>return -1;
}
 
/* redraw screen in new size */
int on_key_resize(void)
{
<------>dialog_clear();
<------>return KEY_RESIZE;
}
 
struct dialog_list *item_cur;
struct dialog_list item_nil;
struct dialog_list *item_head;
 
void item_reset(void)
{
<------>struct dialog_list *p, *next;
 
<------>for (p = item_head; p; p = next) {
<------><------>next = p->next;
<------><------>free(p);
<------>}
<------>item_head = NULL;
<------>item_cur = &item_nil;
}
 
void item_make(const char *fmt, ...)
{
<------>va_list ap;
<------>struct dialog_list *p = malloc(sizeof(*p));
 
<------>if (item_head)
<------><------>item_cur->next = p;
<------>else
<------><------>item_head = p;
<------>item_cur = p;
<------>memset(p, 0, sizeof(*p));
 
<------>va_start(ap, fmt);
<------>vsnprintf(item_cur->node.str, sizeof(item_cur->node.str), fmt, ap);
<------>va_end(ap);
}
 
void item_add_str(const char *fmt, ...)
{
<------>va_list ap;
<------>size_t avail;
 
<------>avail = sizeof(item_cur->node.str) - strlen(item_cur->node.str);
 
<------>va_start(ap, fmt);
<------>vsnprintf(item_cur->node.str + strlen(item_cur->node.str),
<------><------>  avail, fmt, ap);
<------>item_cur->node.str[sizeof(item_cur->node.str) - 1] = '\0';
<------>va_end(ap);
}
 
void item_set_tag(char tag)
{
<------>item_cur->node.tag = tag;
}
void item_set_data(void *ptr)
{
<------>item_cur->node.data = ptr;
}
 
void item_set_selected(int val)
{
<------>item_cur->node.selected = val;
}
 
int item_activate_selected(void)
{
<------>item_foreach()
<------><------>if (item_is_selected())
<------><------><------>return 1;
<------>return 0;
}
 
void *item_data(void)
{
<------>return item_cur->node.data;
}
 
char item_tag(void)
{
<------>return item_cur->node.tag;
}
 
int item_count(void)
{
<------>int n = 0;
<------>struct dialog_list *p;
 
<------>for (p = item_head; p; p = p->next)
<------><------>n++;
<------>return n;
}
 
void item_set(int n)
{
<------>int i = 0;
<------>item_foreach()
<------><------>if (i++ == n)
<------><------><------>return;
}
 
int item_n(void)
{
<------>int n = 0;
<------>struct dialog_list *p;
 
<------>for (p = item_head; p; p = p->next) {
<------><------>if (p == item_cur)
<------><------><------>return n;
<------><------>n++;
<------>}
<------>return 0;
}
 
const char *item_str(void)
{
<------>return item_cur->node.str;
}
 
int item_is_selected(void)
{
<------>return (item_cur->node.selected != 0);
}
 
int item_is_tag(char tag)
{
<------>return (item_cur->node.tag == tag);
}