curitem.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Mircrosystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.6 */
/*LINTLIBRARY*/
#include <sys/types.h>
#include "private.h"
int
set_current_item(MENU *m, ITEM *current)
{
int top;
if (m && current && Imenu(current) == m) {
if (Indriver(m)) {
return (E_BAD_STATE);
}
if (current != Current(m)) {
if (LinkNeeded(m)) {
_link_items(m);
}
top = Top(m);
_chk_current(m, &top, current);
/* Next clear the pattern buffer. */
Pindex(m) = 0;
IthPattern(m, Pindex(m)) = '\0';
_affect_change(m, top, current);
}
} else {
return (E_BAD_ARGUMENT);
}
return (E_OK);
}
ITEM *
current_item(MENU *m)
{
if (m && Items(m)) {
return (Current(m));
} else {
return ((ITEM *)0);
}
}
int
item_index(ITEM *i)
{
if (i && Imenu(i)) {
return (Index(i));
} else {
return (-1);
}
}