X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=test%2Fncurses.c;h=ef6e1e481373155fb1647ab01d1175cb5fadece2;hp=5764dd75c2451d15da18f53507d7077e393995f8;hb=690589d8f19e38925db061296d4f704e4a965bb2;hpb=603f0cb25b7acc8f04f4b18d2a2fe6f90039829a

diff --git a/test/ncurses.c b/test/ncurses.c
index 5764dd75..ef6e1e48 100644
--- a/test/ncurses.c
+++ b/test/ncurses.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2015,2016 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2016,2017 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -40,7 +40,7 @@ AUTHOR
    Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
            Thomas E. Dickey (beginning revision 1.27 in 1996).
 
-$Id: ncurses.c,v 1.438 2016/06/11 21:05:48 tom Exp $
+$Id: ncurses.c,v 1.453 2017/06/24 20:49:44 tom Exp $
 
 ***************************************************************************/
 
@@ -77,7 +77,6 @@ $Id: ncurses.c,v 1.438 2016/06/11 21:05:48 tom Exp $
 
 #ifdef TRACE
 static unsigned save_trace = TRACE_ORDINARY | TRACE_ICALLS | TRACE_CALLS;
-extern unsigned _nc_tracing;
 #endif
 
 #else
@@ -142,7 +141,7 @@ extern unsigned _nc_tracing;
 #define state_unused
 #endif
 
-#define ToggleAcs(temp,real) temp = ((temp == real) ? 0 : real)
+#define ToggleAcs(temp,real) temp = ((temp == real) ? NULL : real)
 
 #define P(string)	printw("%s\n", string)
 
@@ -165,6 +164,7 @@ typedef struct {
 static RGB_DATA *all_colors;
 
 static void main_menu(bool);
+static void failed(const char *s) GCC_NORETURN;
 
 static void
 failed(const char *s)
@@ -515,10 +515,15 @@ mouse_decode(MEVENT const *ep)
 {
     static char buf[80 + (5 * 10) + (32 * 15)];
 
-    (void) sprintf(buf, "id %2d at (%2d, %2d, %d) state %4lx = {",
-		   ep->id, ep->x, ep->y, ep->z, (unsigned long) ep->bstate);
+    (void) _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
+		       "id %2d at (%2d, %2d, %d) state %4lx = {",
+		       ep->id, ep->x, ep->y, ep->z, (unsigned long) ep->bstate);
 
-#define SHOW(m, s) if ((ep->bstate & m)==m) {strcat(buf,s); strcat(buf, ", ");}
+#define SHOW(m, s) \
+	if ((ep->bstate & m)==m) { \
+		_nc_STRCAT(buf, s, sizeof(buf)); \
+		_nc_STRCAT(buf, ", ", sizeof(buf)); \
+	}
 
     SHOW(BUTTON1_RELEASED, "release-1");
     SHOW(BUTTON1_PRESSED, "press-1");
@@ -574,7 +579,7 @@ mouse_decode(MEVENT const *ep)
 
     if (buf[strlen(buf) - 1] == ' ')
 	buf[strlen(buf) - 2] = '\0';
-    (void) strcat(buf, "}");
+    _nc_STRCAT(buf, "}", sizeof(buf));
     return (buf);
 }
 
@@ -1306,7 +1311,7 @@ attr_legend(WINDOW *helpwin)
 	      "Toggles:");
     if (use_colors) {
 	MvWPrintw(helpwin, row++, col,
-		  "  f/F/b/F toggle foreground/background background color");
+		  "  f/F/b/B toggle foreground/background background color");
 	MvWPrintw(helpwin, row++, col,
 		  "  t/T     toggle text/background color attribute");
     }
@@ -1569,7 +1574,7 @@ attr_getc(int *skip,
 	    case CTRL('L'):
 		Repaint();
 		break;
-	    case '?':
+	    case HELP_KEY_1:
 		if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
 		    box(helpwin, 0, 0);
 		    attr_legend(helpwin);
@@ -1919,7 +1924,7 @@ wide_attr_getc(int *skip,
 	    case CTRL('L'):
 		Repaint();
 		break;
-	    case '?':
+	    case HELP_KEY_1:
 		if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
 		    box_set(helpwin, 0, 0);
 		    attr_legend(helpwin);
@@ -2089,14 +2094,17 @@ show_color_name(int y, int x, int color, bool wide)
 	int width = 8;
 
 	if (wide) {
-	    sprintf(temp, "%02d", color);
+	    _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+			"%02d", color);
 	    width = 4;
 	} else if (color >= 8) {
-	    sprintf(temp, "[%02d]", color);
+	    _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+			"[%02d]", color);
 	} else if (color < 0) {
-	    strcpy(temp, "default");
+	    _nc_STRCPY(temp, "default", sizeof(temp));
 	} else {
-	    sprintf(temp, "%.*s", 16, the_color_names[color]);
+	    _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+			"%.*s", 16, the_color_names[color]);
 	}
 	printw("%-*.*s", width, width, temp);
     }
@@ -2283,7 +2291,8 @@ color_test(void)
 		    attron(A_REVERSE);
 
 		if (opt_nums) {
-		    sprintf(numbered, "{%02X}", (int) i);
+		    _nc_SPRINTF(numbered, _nc_SLIMIT((size_t) (COLS + 1))
+				"{%02X}", (int) i);
 		    hello = numbered;
 		}
 		printw("%-*.*s", width, width, hello);
@@ -2377,7 +2386,7 @@ color_test(void)
 		}
 	    }
 	    break;
-	case '?':
+	case HELP_KEY_1:
 	    if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
 		box(helpwin, 0, 0);
 		color_legend(helpwin, FALSE);
@@ -2507,7 +2516,9 @@ wide_color_test(void)
 		    attr_on(A_REVERSE, NULL);
 
 		if (opt_nums) {
-		    sprintf(numbered, "{%02X}", i);
+		    _nc_SPRINTF(numbered,
+				_nc_SLIMIT((size_t) (COLS + 1) * sizeof(wchar_t))
+				"{%02X}", i);
 		    if (opt_xchr) {
 			make_fullwidth_text(buffer, numbered);
 		    } else {
@@ -2611,7 +2622,7 @@ wide_color_test(void)
 		}
 	    }
 	    break;
-	case '?':
+	case HELP_KEY_1:
 	    if ((helpwin = newwin(LINES - 1, COLS - 2, 0, 0)) != 0) {
 		box(helpwin, 0, 0);
 		color_legend(helpwin, TRUE);
@@ -2692,7 +2703,8 @@ init_all_colors(bool xterm_colors, char *palette_file)
 	int n;
 	int got;
 	char result[BUFSIZ];
-	int check_n, check_r, check_g, check_b;
+	int check_n;
+	unsigned check_r, check_g, check_b;
 
 	raw();
 	noecho();
@@ -2791,7 +2803,7 @@ color_edit(void)
 	     && (i < max_colors); i++) {
 	    char numeric[80];
 
-	    sprintf(numeric, "[%d]", i);
+	    _nc_SPRINTF(numeric, _nc_SLIMIT(sizeof(numeric)) "[%d]", i);
 	    MvPrintw(2 + i - top_color, 0, "%c %-8s:",
 		     (i == current ? '>' : ' '),
 		     (i < (int) SIZEOF(the_color_names)
@@ -2915,7 +2927,7 @@ color_edit(void)
 	    change_color((NCURSES_PAIRS_T) current, field, value, 0);
 	    break;
 
-	case '?':
+	case HELP_KEY_1:
 	    erase();
 	    P("                      RGB Value Editing Help");
 	    P("");
@@ -3159,7 +3171,7 @@ slk_test(void)
 	case 's':
 	    MvPrintw(SLK_WORK, 0, "Press Q to stop the scrolling-test: ");
 	    while ((c = Getchar()) != 'Q' && (c != ERR))
-		addch((chtype) c);
+		AddCh(c);
 	    break;
 
 	case 'd':
@@ -3187,9 +3199,9 @@ slk_test(void)
 	case '7':
 	case '8':
 	    MvAddStr(SLK_WORK, 0, "Please enter the label value: ");
-	    strcpy(buf, "");
+	    _nc_STRCPY(buf, "", sizeof(buf));
 	    if ((s = slk_label(c - '0')) != 0) {
-		strncpy(buf, s, (size_t) 8);
+		_nc_STRNCPY(buf, s, (size_t) 8);
 	    }
 	    wGetstring(stdscr, buf, 8);
 	    slk_set((c - '0'), buf, fmt);
@@ -3279,7 +3291,7 @@ wide_slk_test(void)
 	case 's':
 	    MvPrintw(SLK_WORK, 0, "Press Q to stop the scrolling-test: ");
 	    while ((c = Getchar()) != 'Q' && (c != ERR))
-		addch((chtype) c);
+		AddCh(c);
 	    break;
 
 	case 'd':
@@ -3411,7 +3423,7 @@ show_256_chars(int repeat, attr_t attr, NCURSES_PAIRS_T pair)
 	int col = (int) (5 * (code % 16));
 	IGNORE_RC(mvaddch(row, col, colored_chtype(code, attr, pair)));
 	for (count = 1; count < repeat; ++count) {
-	    addch(colored_chtype(code, attr, pair));
+	    AddCh(colored_chtype(code, attr, pair));
 	}
     }
 
@@ -3445,7 +3457,7 @@ show_upper_chars(int base, int pagesize, int repeat, attr_t attr, NCURSES_PAIRS_
 	int row = 2 + ((int) (code - first) % (pagesize / 2));
 	int col = ((int) (code - first) / (pagesize / 2)) * COLS / 2;
 	char tmp[80];
-	sprintf(tmp, "%3u (0x%x)", code, code);
+	_nc_SPRINTF(tmp, _nc_SLIMIT(sizeof(tmp)) "%3u (0x%x)", code, code);
 	MvPrintw(row, col, "%*s: ", COLS / 4, tmp);
 
 	do {
@@ -3455,7 +3467,7 @@ show_upper_chars(int base, int pagesize, int repeat, attr_t attr, NCURSES_PAIRS_
 	    if (C1) {
 		/* (yes, this _is_ crude) */
 		while ((reply = Getchar()) != ERR) {
-		    addch(UChar(reply));
+		    AddCh(UChar(reply));
 		    napms(10);
 		}
 		nodelay(stdscr, FALSE);
@@ -3500,7 +3512,7 @@ show_pc_chars(int repeat, attr_t attr, NCURSES_PAIRS_T pair)
 		 */
 		break;
 	    default:
-		addch(colored_chtype(code, A_ALTCHARSET | attr, pair));
+		AddCh(colored_chtype(code, A_ALTCHARSET | attr, pair));
 		break;
 	    }
 	} while (--count > 0);
@@ -3549,7 +3561,7 @@ show_1_acs(int n, int repeat, const char *name, chtype code)
 
     MvPrintw(row, col, "%*s : ", COLS / 4, name);
     do {
-	addch(code);
+	AddCh(code);
     } while (--repeat > 0);
     return n + 1;
 }
@@ -3783,7 +3795,7 @@ show_paged_widechars(int base,
 	setcchar(&temp, codes, attr, pair, 0);
 	move(row, col);
 	if (wcwidth(code) == 0 && code != 0) {
-	    addch((chtype) space |
+	    AddCh((chtype) space |
 		  (A_REVERSE ^ attr) |
 		  (attr_t) COLOR_PAIR(pair));
 	}
@@ -3814,7 +3826,8 @@ show_upper_widechars(int first, int repeat, int space, attr_t attr, NCURSES_PAIR
 	int count = repeat;
 	int y, x;
 
-	sprintf(tmp, "%3ld (0x%lx)", (long) code, (long) code);
+	_nc_SPRINTF(tmp, _nc_SLIMIT(sizeof(tmp))
+		    "%3ld (0x%lx)", (long) code, (long) code);
 	MvPrintw(row, col, "%*s: ", COLS / 4, tmp);
 
 	memset(&codes, 0, sizeof(codes));
@@ -3829,7 +3842,7 @@ show_upper_widechars(int first, int repeat, int space, attr_t attr, NCURSES_PAIR
 	     * the display.
 	     */
 	    if (wcwidth(code) == 0) {
-		addch((chtype) space |
+		AddCh((chtype) space |
 		      (A_REVERSE ^ attr) |
 		      (attr_t) COLOR_PAIR(pair));
 	    }
@@ -3970,7 +3983,7 @@ show_wacs_chars_double(int repeat, attr_t attr, NCURSES_PAIRS_T pair)
     n = show_1_wacs(n, repeat, BOTH2(WACS_DEGREE));
     n = show_1_wacs(n, repeat, BOTH2(WACS_DIAMOND));
     n = show_1_wacs(n, repeat, BOTH2(WACS_PLMINUS));
-    n = show_1_wacs(n, repeat, BOTH2(WACS_PLUS));
+    n = show_1_wacs(n, repeat, BOTH2(WACS_D_PLUS));
 
 #ifdef CURSES_WACS_ARRAY
     n = show_1_wacs(n, repeat, BOTH2(WACS_GEQUAL));
@@ -4031,7 +4044,7 @@ show_wacs_chars_thick(int repeat, attr_t attr, NCURSES_PAIRS_T pair)
     n = show_1_wacs(n, repeat, BOTH2(WACS_DEGREE));
     n = show_1_wacs(n, repeat, BOTH2(WACS_DIAMOND));
     n = show_1_wacs(n, repeat, BOTH2(WACS_PLMINUS));
-    n = show_1_wacs(n, repeat, BOTH2(WACS_PLUS));
+    n = show_1_wacs(n, repeat, BOTH2(WACS_T_PLUS));
 
 #ifdef CURSES_WACS_ARRAY
     n = show_1_wacs(n, repeat, BOTH2(WACS_GEQUAL));
@@ -4097,7 +4110,8 @@ show_2_wacs(int n, const char *name, const char *code, attr_t attr, NCURSES_PAIR
 
     MvPrintw(row, col, "%*s : ", COLS / 4, name);
     (void) attr_set(attr, pair, 0);
-    addstr(strncpy(temp, code, 20));
+    _nc_STRNCPY(temp, code, 20);
+    addstr(temp);
     (void) attr_set(A_NORMAL, 0, 0);
     return n + 1;
 }
@@ -4435,16 +4449,19 @@ newwin_legend(FRAME * curp)
     for (n = 0; n < SIZEOF(legend); n++) {
 	switch (legend[n].code) {
 	default:
-	    strcpy(buf, legend[n].msg);
+	    _nc_STRCPY(buf, legend[n].msg, sizeof(buf));
 	    break;
 	case 1:
-	    sprintf(buf, legend[n].msg, do_keypad ? "yes" : "no");
+	    _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
+			legend[n].msg, do_keypad ? "yes" : "no");
 	    break;
 	case 2:
-	    sprintf(buf, legend[n].msg, do_scroll ? "yes" : "no");
+	    _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
+			legend[n].msg, do_scroll ? "yes" : "no");
 	    break;
 	case 3:
-	    sprintf(buf, legend[n].msg, do_keypad ? "/ESC" : "");
+	    _nc_SPRINTF(buf, _nc_SLIMIT(sizeof(buf))
+			legend[n].msg, do_keypad ? "/ESC" : "");
 	    break;
 	}
 	x = getcurx(stdscr);
@@ -4533,8 +4550,8 @@ selectcell(int uli, int ulj, int lri, int lrj)
 		    break;
 		}
 	    }
-	    /* FALLTHRU */
 #endif
+	    /* FALLTHRU */
 	default:
 	    res.y = uli + i;
 	    res.x = ulj + j;
@@ -4635,7 +4652,7 @@ delete_framed(FRAME * fp, bool showit)
 	}
 	delwin(fp->wind);
 
-	np = (fp == fp->next) ? 0 : fp->next;
+	np = (fp == fp->next) ? NULL : fp->next;
 	free(fp);
     }
     return np;
@@ -4972,7 +4989,7 @@ mkpanel(NCURSES_COLOR_T color, int rows, int cols, int tly, int tlx)
 	rmpanel(pan)
 --------------------------------------------------------------------------*/
 static void
-rmpanel(PANEL * pan)
+rmpanel(PANEL *pan)
 {
     WINDOW *win = panel_window(pan);
     del_panel(pan);
@@ -5004,7 +5021,7 @@ init_panel(WINDOW *win)
 }
 
 static void
-fill_panel(PANEL * pan)
+fill_panel(PANEL *pan)
 {
     WINDOW *win = panel_window(pan);
     const char *userptr = (const char *) panel_userptr(pan);
@@ -5041,7 +5058,7 @@ init_wide_panel(WINDOW *win)
 }
 
 static void
-fill_wide_panel(PANEL * pan)
+fill_wide_panel(PANEL *pan)
 {
     WINDOW *win = panel_window(pan);
     const char *userptr = (const char *) panel_userptr(pan);
@@ -5064,7 +5081,7 @@ fill_wide_panel(PANEL * pan)
 #define MAX_PANELS 5
 
 static void
-canned_panel(PANEL * px[MAX_PANELS + 1], NCURSES_CONST char *cmd)
+canned_panel(PANEL *px[MAX_PANELS + 1], NCURSES_CONST char *cmd)
 {
     int which = cmd[1] - '0';
 
@@ -5354,8 +5371,8 @@ panner(WINDOW *pad,
 	    erase();
 
 	    /* FALLTHRU */
-	case '?':
-	    if (c == '?')
+	case HELP_KEY_1:
+	    if (c == HELP_KEY_1)
 		show_panner_legend = !show_panner_legend;
 	    panner_legend(LINES - 4);
 	    panner_legend(LINES - 3);
@@ -5938,29 +5955,31 @@ static char *
 tracetrace(unsigned tlevel)
 {
     static char *buf;
+    static size_t need = 12;
     int n;
 
     if (buf == 0) {
-	size_t need = 12;
 	for (n = 0; t_tbl[n].name != 0; n++)
 	    need += strlen(t_tbl[n].name) + 2;
 	buf = typeMalloc(char, need);
 	if (!buf)
 	    failed("tracetrace");
     }
-    sprintf(buf, "0x%02x = {", tlevel);
+    _nc_SPRINTF(buf, _nc_SLIMIT(need) "0x%02x = {", tlevel);
     if (tlevel == 0) {
-	sprintf(buf + strlen(buf), "%s, ", t_tbl[0].name);
+	_nc_STRCAT(buf, t_tbl[0].name, need);
+	_nc_STRCAT(buf, ", ", need);
     } else {
 	for (n = 1; t_tbl[n].name != 0; n++)
 	    if ((tlevel & t_tbl[n].mask) == t_tbl[n].mask) {
-		strcat(buf, t_tbl[n].name);
-		strcat(buf, ", ");
+		_nc_STRCAT(buf, t_tbl[n].name, need);
+		_nc_STRCAT(buf, ", ", need);
 	    }
     }
     if (buf[strlen(buf) - 2] == ',')
 	buf[strlen(buf) - 2] = '\0';
-    return (strcat(buf, "}"));
+    _nc_STRCAT(buf, "}", need);
+    return buf;
 }
 
 /* fake a dynamically reconfigurable menu using the 0th entry to deselect
@@ -6108,7 +6127,7 @@ make_field(int frow, int fcol, int rows, int cols, bool secure)
 }
 
 static void
-display_form(FORM * f)
+display_form(FORM *f)
 {
     WINDOW *w;
     int rows, cols;
@@ -6126,7 +6145,7 @@ display_form(FORM * f)
 }
 
 static void
-erase_form(FORM * f)
+erase_form(FORM *f)
 {
     WINDOW *w = form_win(f);
     WINDOW *s = form_sub(f);
@@ -6139,7 +6158,7 @@ erase_form(FORM * f)
 }
 
 static int
-edit_secure(FIELD * me, int c)
+edit_secure(FIELD *me, int c)
 {
     int rows, cols, frow, fcol, nrow, nbuf;
 
@@ -6152,7 +6171,7 @@ edit_secure(FIELD * me, int c)
 	size_t len;
 
 	if (temp != 0) {
-	    strncpy(temp, source ? source : "", have + 1);
+	    _nc_STRNCPY(temp, source ? source : "", have + 1);
 	    len = (size_t) (char *) field_userptr(me);
 	    if (c <= KEY_MAX) {
 		if (isgraph(c) && (len + 1) < sizeof(temp)) {
@@ -6205,7 +6224,7 @@ edit_secure(FIELD * me, int c)
 }
 
 static int
-form_virtualize(FORM * f, WINDOW *w)
+form_virtualize(FORM *f, WINDOW *w)
 {
     /* *INDENT-OFF* */
     static const struct {
@@ -6312,7 +6331,7 @@ form_virtualize(FORM * f, WINDOW *w)
 }
 
 static int
-my_form_driver(FORM * form, int c)
+my_form_driver(FORM *form, int c)
 {
     if (c == (MAX_FORM_COMMAND + 1)
 	&& form_driver(form, REQ_VALIDATION) == E_OK)
@@ -6612,7 +6631,8 @@ overlap_help(int state, int flavors[OVERLAP_FLAVORS])
 	switch (row) {
 	case 0:
 	    flavors[row] = 0;
-	    sprintf(msg, "refresh %s, then %s, then doupdate.", ths, tht);
+	    _nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			"refresh %s, then %s, then doupdate.", ths, tht);
 	    break;
 	case 1:
 	    if (use_colors) {
@@ -6621,7 +6641,8 @@ overlap_help(int state, int flavors[OVERLAP_FLAVORS])
 		flavors[row] %= 2;
 	    }
 	    overlap_test_1_attr(stdscr, flavors[row], col);
-	    sprintf(msg, "fill window %s with letter %s.", ths, ths);
+	    _nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			"fill window %s with letter %s.", ths, ths);
 	    break;
 	case 2:
 	    if (use_colors) {
@@ -6631,37 +6652,46 @@ overlap_help(int state, int flavors[OVERLAP_FLAVORS])
 	    }
 	    switch (flavors[row]) {
 	    case 0:
-		sprintf(msg, "cross pattern in window %s.", ths);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "cross pattern in window %s.", ths);
 		break;
 	    case 1:
-		sprintf(msg, "draw box in window %s.", ths);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "draw box in window %s.", ths);
 		break;
 	    case 2:
-		sprintf(msg, "set background of window %s.", ths);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "set background of window %s.", ths);
 		break;
 	    case 3:
-		sprintf(msg, "reset background of window %s.", ths);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "reset background of window %s.", ths);
 		break;
 	    }
 	    break;
 	case 3:
 	    flavors[row] = 0;
-	    sprintf(msg, "clear window %s.", ths);
+	    _nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			"clear window %s.", ths);
 	    break;
 	case 4:
 	    flavors[row] %= 4;
 	    switch (flavors[row]) {
 	    case 0:
-		sprintf(msg, "overwrite %s onto %s.", ths, tht);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "overwrite %s onto %s.", ths, tht);
 		break;
 	    case 1:
-		sprintf(msg, "copywin(FALSE) %s onto %s.", ths, tht);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "copywin(FALSE) %s onto %s.", ths, tht);
 		break;
 	    case 2:
-		sprintf(msg, "copywin(TRUE) %s onto %s.", ths, tht);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "copywin(TRUE) %s onto %s.", ths, tht);
 		break;
 	    case 3:
-		sprintf(msg, "overlay %s onto %s.", ths, tht);
+		_nc_SPRINTF(msg, _nc_SLIMIT(sizeof(msg))
+			    "overlay %s onto %s.", ths, tht);
 		break;
 	    }
 	    break;
@@ -6819,7 +6849,7 @@ overlap_test(void)
 	    state = overlap_help(state, flavor);
 	    break;
 
-	case '?':
+	case HELP_KEY_1:
 	    state = overlap_help(state, flavor);
 	    break;
 
@@ -6835,6 +6865,88 @@ overlap_test(void)
     endwin();
 }
 
+static void
+show_setting_name(const char *name)
+{
+    printw("%-25s ", name);
+}
+
+static void
+show_string_setting(const char *name, const char *value)
+{
+    show_setting_name(name);
+    if (value) {
+	printw("\"%s\"", value);
+    } else {
+	attron(A_REVERSE);
+	addstr("<NULL>");
+	attroff(A_REVERSE);
+    }
+    AddCh('\n');
+}
+
+static void
+show_number_setting(const char *name, int value)
+{
+    show_setting_name(name);
+    if (value >= 0) {
+	printw("%d", value);
+    } else {
+	attron(A_REVERSE);
+	printw("%d", value);
+	attroff(A_REVERSE);
+    }
+    AddCh('\n');
+}
+
+static void
+show_boolean_setting(const char *name, int value)
+{
+    show_setting_name(name);
+    if (value >= 0) {
+	printw("%s", value ? "TRUE" : "FALSE");
+    } else {
+	attron(A_REVERSE);
+	printw("%d", value);
+	attroff(A_REVERSE);
+    }
+    AddCh('\n');
+}
+
+static void
+show_settings(void)
+{
+#if USE_WIDEC_SUPPORT
+    wchar_t ch;
+#endif
+
+    move(0, 0);
+    show_string_setting("termname", termname());
+    show_string_setting("longname", longname());
+    show_number_setting("baudrate", baudrate());
+    if (erasechar() > 0) {
+	show_string_setting("unctrl(erasechar)", unctrl((chtype) erasechar()));
+	show_string_setting("keyname(erasechar)", keyname(erasechar()));
+    }
+    if (killchar() > 0) {
+	show_string_setting("unctrl(killchar)", unctrl((chtype) killchar()));
+	show_string_setting("keyname(killchar)", keyname(killchar()));
+    }
+#if USE_WIDEC_SUPPORT
+    if (erasewchar(&ch) == OK) {
+	show_string_setting("key_name(erasewchar)", key_name(ch));
+    }
+    if (killwchar(&ch) == OK) {
+	show_string_setting("key_name(killwchar)", key_name(ch));
+    }
+#endif
+    show_boolean_setting("has_ic", has_ic());
+    show_boolean_setting("has_il", has_il());
+    Pause();
+    erase();
+    endwin();
+}
+
 /****************************************************************************
  *
  * Main sequence
@@ -6967,6 +7079,10 @@ do_single_test(const char c)
 	break;
 #endif
 
+    case 'v':
+	show_settings();
+	break;
+
     case '?':
 	break;
 
@@ -7114,6 +7230,7 @@ main_menu(bool top)
 #if USE_LIBMENU && defined(TRACE)
 	(void) puts("t = set trace level");
 #endif
+	(void) puts("v = show terminal name and settings");
 	(void) puts("? = repeat this command summary");
 
 	(void) fputs("> ", stdout);