1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1988 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 /*
27  * Copyright (c) 1997, by Sun Mircrosystems, Inc.
28  * All rights reserved.
29  */
30 
31 #pragma	ident	"%Z%%M%	%I%	%E% SMI"	/* SVr4.0 1.6	*/
32 
33 /*LINTLIBRARY*/
34 
35 #include <sys/types.h>
36 #include "private.h"
37 
38 int
set_current_item(MENU * m,ITEM * current)39 set_current_item(MENU *m, ITEM *current)
40 {
41 	int top;
42 
43 	if (m && current && Imenu(current) == m) {
44 		if (Indriver(m)) {
45 			return (E_BAD_STATE);
46 		}
47 		if (current != Current(m)) {
48 			if (LinkNeeded(m)) {
49 				_link_items(m);
50 			}
51 
52 			top = Top(m);
53 			_chk_current(m, &top, current);
54 
55 			/* Next clear the pattern buffer. */
56 			Pindex(m) = 0;
57 			IthPattern(m, Pindex(m)) = '\0';
58 			_affect_change(m, top, current);
59 		}
60 	} else {
61 		return (E_BAD_ARGUMENT);
62 	}
63 	return (E_OK);
64 }
65 
66 ITEM *
current_item(MENU * m)67 current_item(MENU *m)
68 {
69 	if (m && Items(m)) {
70 		return (Current(m));
71 	} else {
72 		return ((ITEM *)0);
73 	}
74 }
75 
76 int
item_index(ITEM * i)77 item_index(ITEM *i)
78 {
79 	if (i && Imenu(i)) {
80 		return (Index(i));
81 	} else {
82 		return (-1);
83 	}
84 }
85