1 /* $OpenBSD: lib_key_name.c,v 1.2 2023/10/17 09:52:09 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2020,2023 Thomas E. Dickey *
5 * Copyright 2007-2008,2017 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /*
33 ** lib_key_name.c
34 **
35 ** The routine key_name().
36 **
37 */
38
39 #include <curses.priv.h>
40
41 MODULE_ID("$Id: lib_key_name.c,v 1.2 2023/10/17 09:52:09 nicm Exp $")
42
43 #define MyData _nc_globals.key_name
44
NCURSES_EXPORT(NCURSES_CONST char *)45 NCURSES_EXPORT(NCURSES_CONST char *)
46 key_name(wchar_t c)
47 {
48 cchar_t my_cchar;
49 wchar_t *my_wchars;
50 size_t len;
51 NCURSES_CONST char *result = NULL;
52
53 memset(&my_cchar, 0, sizeof(my_cchar));
54 my_cchar.chars[0] = c;
55 my_cchar.chars[1] = L'\0';
56
57 my_wchars = wunctrl(&my_cchar);
58 /*
59 * wunctrl() could return a wide character rather than just a "printable"
60 * representation. Check for that and return a corresponding multibyte
61 * character string.
62 */
63 len = wcstombs(MyData, my_wchars, sizeof(MyData) - 1);
64 if (!isEILSEQ(len) && (len != 0) && (len <= MB_LEN_MAX)) {
65 MyData[len] = '\0';
66 result = MyData;
67 }
68 return result;
69 }
70