lstFindFrom.c revision 1.14 
1/*	$OpenPackages$ */
2/*	$OpenBSD: lstFindFrom.c,v 1.14 2004/04/07 13:11:36 espie Exp $	*/
3/*	$NetBSD: lstFindFrom.c,v 1.6 1996/11/06 17:59:40 christos Exp $ */
4
5/*
6 * Copyright (c) 1988, 1989, 1990, 1993
7 *	The Regents of the University of California.  All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Adam de Boor.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37/*-
38 * LstFindFrom.c --
39 *	Find a node on a list from a given starting point. Used by Lst_Find.
40 */
41
42#include	"lstInt.h"
43#include	<stddef.h>
44
45/*-
46 *-----------------------------------------------------------------------
47 * Lst_FindFrom --
48 *	Search for a node starting and ending with the given one on the
49 *	given list using the passed datum and comparison function to
50 *	determine when it has been found.
51 *
52 * Results:
53 *	The found node or NULL
54 *-----------------------------------------------------------------------
55 */
56LstNode
57Lst_FindFrom(LstNode ln, FindProc cProc, void *d)
58{
59    LstNode		tln;
60
61    for (tln = ln; tln != NULL; tln = tln->nextPtr)
62	if ((*cProc)(tln->datum, d) == 0)
63	    return tln;
64
65    return NULL;
66}
67
68