xref: /openbsd/lib/libcurses/tinfo/home_terminfo.c (revision 3bef86f7)
1 /* $OpenBSD: home_terminfo.c,v 1.10 2023/10/17 09:52:09 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2020 Thomas E. Dickey                                          *
5  * Copyright 1998-2012,2016 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      *
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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  *	home_terminfo.c -- return the $HOME/.terminfo string, expanded
38  */
39 
40 #include <curses.priv.h>
41 #include <tic.h>
42 
43 MODULE_ID("$Id: home_terminfo.c,v 1.10 2023/10/17 09:52:09 nicm Exp $")
44 
45 /* ncurses extension...fall back on user's private directory */
46 
47 #define MyBuffer _nc_globals.home_terminfo
48 
49 NCURSES_EXPORT(char *)
50 _nc_home_terminfo(void)
51 {
52     char *result = 0;
53 #if USE_HOME_TERMINFO
54     if (use_terminfo_vars()) {
55 
56 	if (MyBuffer == 0) {
57 	    char *home;
58 
59 	    if ((home = getenv("HOME")) != 0) {
60 		size_t want = (strlen(home) + sizeof(PRIVATE_INFO));
61 		TYPE_MALLOC(char, want, MyBuffer);
62 		_nc_SPRINTF(MyBuffer, _nc_SLIMIT(want) PRIVATE_INFO, home);
63 	    }
64 	}
65 	result = MyBuffer;
66     }
67 #endif
68     return result;
69 }
70