1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
30*0Sstevel@tonic-gate /* All Rights Reserved */
31*0Sstevel@tonic-gate
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate #include <sys/types.h>
34*0Sstevel@tonic-gate #if defined(_KERNEL)
35*0Sstevel@tonic-gate #include <sys/systm.h>
36*0Sstevel@tonic-gate #else
37*0Sstevel@tonic-gate #include <string.h>
38*0Sstevel@tonic-gate #include <stddef.h>
39*0Sstevel@tonic-gate #endif
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate /*
42*0Sstevel@tonic-gate * Return the ptr in sptr at which the character c1 appears;
43*0Sstevel@tonic-gate * or NULL if not found in n chars; don't stop at \0.
44*0Sstevel@tonic-gate */
45*0Sstevel@tonic-gate void *
memchr(const void * sptr,int c1,size_t n)46*0Sstevel@tonic-gate memchr(const void *sptr, int c1, size_t n)
47*0Sstevel@tonic-gate {
48*0Sstevel@tonic-gate if (n != 0) {
49*0Sstevel@tonic-gate unsigned char c = (unsigned char)c1;
50*0Sstevel@tonic-gate const unsigned char *sp = sptr;
51*0Sstevel@tonic-gate
52*0Sstevel@tonic-gate do {
53*0Sstevel@tonic-gate if (*sp++ == c)
54*0Sstevel@tonic-gate return ((void *)--sp);
55*0Sstevel@tonic-gate } while (--n != 0);
56*0Sstevel@tonic-gate }
57*0Sstevel@tonic-gate return (NULL);
58*0Sstevel@tonic-gate }
59