cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

yesno.c (2262B)

      1// SPDX-License-Identifier: GPL-2.0+
      2/*
      3 *  yesno.c -- implements the yes/no box
      4 *
      5 *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
      6 *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
      7 */
      8
      9#include "dialog.h"
     10
     11/*
     12 * Display termination buttons
     13 */
     14static void print_buttons(WINDOW * dialog, int height, int width, int selected)
     15{
     16	int x = width / 2 - 10;
     17	int y = height - 2;
     18
     19	print_button(dialog, " Yes ", y, x, selected == 0);
     20	print_button(dialog, "  No  ", y, x + 13, selected == 1);
     21
     22	wmove(dialog, y, x + 1 + 13 * selected);
     23	wrefresh(dialog);
     24}
     25
     26/*
     27 * Display a dialog box with two buttons - Yes and No
     28 */
     29int dialog_yesno(const char *title, const char *prompt, int height, int width)
     30{
     31	int i, x, y, key = 0, button = 0;
     32	WINDOW *dialog;
     33
     34do_resize:
     35	if (getmaxy(stdscr) < (height + YESNO_HEIGTH_MIN))
     36		return -ERRDISPLAYTOOSMALL;
     37	if (getmaxx(stdscr) < (width + YESNO_WIDTH_MIN))
     38		return -ERRDISPLAYTOOSMALL;
     39
     40	/* center dialog box on screen */
     41	x = (getmaxx(stdscr) - width) / 2;
     42	y = (getmaxy(stdscr) - height) / 2;
     43
     44	draw_shadow(stdscr, y, x, height, width);
     45
     46	dialog = newwin(height, width, y, x);
     47	keypad(dialog, TRUE);
     48
     49	draw_box(dialog, 0, 0, height, width,
     50		 dlg.dialog.atr, dlg.border.atr);
     51	wattrset(dialog, dlg.border.atr);
     52	mvwaddch(dialog, height - 3, 0, ACS_LTEE);
     53	for (i = 0; i < width - 2; i++)
     54		waddch(dialog, ACS_HLINE);
     55	wattrset(dialog, dlg.dialog.atr);
     56	waddch(dialog, ACS_RTEE);
     57
     58	print_title(dialog, title, width);
     59
     60	wattrset(dialog, dlg.dialog.atr);
     61	print_autowrap(dialog, prompt, width - 2, 1, 3);
     62
     63	print_buttons(dialog, height, width, 0);
     64
     65	while (key != KEY_ESC) {
     66		key = wgetch(dialog);
     67		switch (key) {
     68		case 'Y':
     69		case 'y':
     70			delwin(dialog);
     71			return 0;
     72		case 'N':
     73		case 'n':
     74			delwin(dialog);
     75			return 1;
     76
     77		case TAB:
     78		case KEY_LEFT:
     79		case KEY_RIGHT:
     80			button = ((key == KEY_LEFT ? --button : ++button) < 0) ? 1 : (button > 1 ? 0 : button);
     81
     82			print_buttons(dialog, height, width, button);
     83			wrefresh(dialog);
     84			break;
     85		case ' ':
     86		case '\n':
     87			delwin(dialog);
     88			return button;
     89		case KEY_ESC:
     90			key = on_key_esc(dialog);
     91			break;
     92		case KEY_RESIZE:
     93			delwin(dialog);
     94			on_key_resize();
     95			goto do_resize;
     96		}
     97	}
     98
     99	delwin(dialog);
    100	return key;		/* ESC pressed */
    101}