1 /* $OpenBSD: lib_slk_wset.c,v 1.2 2023/10/17 09:52:09 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2020 Thomas E. Dickey                                          *
5  * Copyright 2003-2011,2016 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  *  Author: Thomas E. Dickey                                                *
34  ****************************************************************************/
35 
36 /*
37  *	lib_slk_wset.c
38  *      Set soft label text.
39  */
40 #include <curses.priv.h>
41 
42 #if HAVE_WCTYPE_H
43 #include <wctype.h>
44 #endif
45 
46 MODULE_ID("$Id: lib_slk_wset.c,v 1.2 2023/10/17 09:52:09 nicm Exp $")
47 
48 NCURSES_EXPORT(int)
49 slk_wset(int i, const wchar_t *astr, int format)
50 {
51     int result = ERR;
52     const wchar_t *str;
53     mbstate_t state;
54 
55     T((T_CALLED("slk_wset(%d, %s, %d)"), i, _nc_viswbuf(astr), format));
56 
57     if (astr != 0) {
58 	size_t arglen;
59 
60 	init_mb(state);
61 	str = astr;
62 
63 	if ((arglen = wcsrtombs(NULL, &str, (size_t) 0, &state)) != (size_t) -1) {
64 	    char *mystr;
65 
66 	    if ((mystr = (char *) _nc_doalloc(0, arglen + 1)) != 0) {
67 		str = astr;
68 		if (wcsrtombs(mystr, &str, arglen, &state) != (size_t) -1) {
69 		    /* glibc documentation claims that the terminating L'\0'
70 		     * is written, but it is not...
71 		     */
72 		    mystr[arglen] = 0;
73 		    result = slk_set(i, mystr, format);
74 		}
75 		free(mystr);
76 	    }
77 	}
78     }
79     returnCode(result);
80 }
81