xref: /openbsd-src/lib/libcurses/tinfo/home_terminfo.c (revision 43003dfe3ad45d1698bed8a37f2b0f5b14f20d4f)
1 /*	$OpenBSD: home_terminfo.c,v 1.8 2003/03/17 19:16:59 millert Exp $	*/
2 
3 /****************************************************************************
4  * Copyright (c) 1998,2000 Free Software Foundation, Inc.                   *
5  *                                                                          *
6  * Permission is hereby granted, free of charge, to any person obtaining a  *
7  * copy of this software and associated documentation files (the            *
8  * "Software"), to deal in the Software without restriction, including      *
9  * without limitation the rights to use, copy, modify, merge, publish,      *
10  * distribute, distribute with modifications, sublicense, and/or sell       *
11  * copies of the Software, and to permit persons to whom the Software is    *
12  * furnished to do so, subject to the following conditions:                 *
13  *                                                                          *
14  * The above copyright notice and this permission notice shall be included  *
15  * in all copies or substantial portions of the Software.                   *
16  *                                                                          *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
20  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
21  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
22  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
23  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
24  *                                                                          *
25  * Except as contained in this notice, the name(s) of the above copyright   *
26  * holders shall not be used in advertising or otherwise to promote the     *
27  * sale, use or other dealings in this Software without prior written       *
28  * authorization.                                                           *
29  ****************************************************************************/
30 
31 /****************************************************************************
32  *  Author: Thomas E. Dickey <dickey@clark.net> 1998,2000                   *
33  ****************************************************************************/
34 
35 /*
36  *	home_terminfo.c -- return the $HOME/.terminfo string, expanded
37  */
38 
39 #include <curses.priv.h>
40 #include <tic.h>
41 
42 MODULE_ID("$From: home_terminfo.c,v 1.6 2000/12/10 02:55:07 tom Exp $")
43 
44 #define my_length (strlen(home) + sizeof(PRIVATE_INFO))
45 
46 /* ncurses extension...fall back on user's private directory */
47 
48 NCURSES_EXPORT(char *)
49 _nc_home_terminfo(void)
50 {
51     char *home;
52     static char *temp = 0;
53 
54     if (use_terminfo_vars()) {
55 	if (temp == 0) {
56 	    if ((home = getenv("HOME")) != 0 && *home != '\0'
57 		&& my_length <= PATH_MAX) {
58 		temp = typeMalloc(char, my_length);
59 		if (temp == 0)
60 		    _nc_err_abort("Out of memory");
61 		(void) snprintf(temp, my_length, PRIVATE_INFO, home);
62 	    }
63 	}
64 	return temp;
65     }
66     return 0;
67 }
68