1 /* $Id: lfind.c,v 1.3 2005/12/27 15:08:22 dron Exp $ */

     2 

     3 /*

     4  * Copyright (c) 1989, 1993

     5  *	The Regents of the University of California.  All rights reserved.

     6  *

     7  * This code is derived from software contributed to Berkeley by

     8  * Roger L. Snyder.

     9  *

    10  * Redistribution and use in source and binary forms, with or without

    11  * modification, are permitted provided that the following conditions

    12  * are met:

    13  * 1. Redistributions of source code must retain the above copyright

    14  *    notice, this list of conditions and the following disclaimer.

    15  * 2. Redistributions in binary form must reproduce the above copyright

    16  *    notice, this list of conditions and the following disclaimer in the

    17  *    documentation and/or other materials provided with the distribution.

    18  * 3. Neither the name of the University nor the names of its contributors

    19  *    may be used to endorse or promote products derived from this software

    20  *    without specific prior written permission.

    21  *

    22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

    23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

    26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

    27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

    28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

    30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

    31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

    32  * SUCH DAMAGE.

    33  */

    34 

    35 #if 0

    36 static char sccsid[] = "@(#)lsearch.c	8.1 (Berkeley) 6/4/93";

    37 __RCSID("$NetBSD: lsearch.c,v 1.2 2005/07/06 15:47:15 drochner Exp $");

    38 #endif

    39 

    40 #include <sys/types.h>

    41 

    42 #ifndef NULL

    43 # define NULL 0

    44 #endif

    45 

    46 void *

    47 lfind(const void *key, const void *base, size_t *nmemb, size_t size,

    48       int(*compar)(const void *, const void *))

    49 {

    50 	char *element, *end;

    51 

    52 	end = (char *)base + *nmemb * size;

    53 	for (element = (char *)base; element < end; element += size)

    54 		if (!compar(element, key))		/* key found */

    55 			return element;

    56 

    57 	return NULL;

    58 }