1/*	$OpenBSD: lstFindFrom.c,v 1.19 2015/10/14 13:50:22 espie Exp $	*/
2/*	$NetBSD: lstFindFrom.c,v 1.6 1996/11/06 17:59:40 christos Exp $ */
3
4/*
5 * Copyright (c) 1988, 1989, 1990, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Adam de Boor.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36/*-
37 * LstFindFrom.c --
38 *	Find a node on a list from a given starting point. Used by Lst_Find.
39 */
40
41#include	"lstInt.h"
42#include	<stddef.h>
43
44/*-
45 *-----------------------------------------------------------------------
46 * Lst_FindFrom --
47 *	Search for a node starting and ending with the given one on the
48 *	given list using the passed datum and comparison function to
49 *	determine when it has been found.
50 *
51 * Results:
52 *	The found node or NULL
53 *-----------------------------------------------------------------------
54 */
55LstNode
56Lst_FindFrom(LstNode ln, FindProc cProc, void *d)
57{
58	LstNode tln;
59
60	for (tln = ln; tln != NULL; tln = tln->nextPtr)
61		if (!(*cProc)(tln->datum, d))
62			return tln;
63
64	return NULL;
65}
66
67