xref: /titanic_41/usr/src/lib/libbc/libc/gen/common/memccpy.c (revision c037192b037119c9fd354732fc29b38ce097d356)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*      Copyright (c) 1984 AT&T */
23 /*        All Rights Reserved   */
24 
25 #pragma ident	"%Z%%M%	%I%	%E% SMI"  /* from S5R2 1.1 */
26 
27 /*LINTLIBRARY*/
28 /*
29  * Copy s2 to s1, stopping if character c is copied. Copy no more than n bytes.
30  * Return a pointer to the byte after character c in the copy,
31  * or NULL if c is not found in the first n bytes.
32  */
33 char *
34 memccpy(s1, s2, c, n)
35 register char *s1, *s2;
36 register int c, n;
37 {
38 	while (--n >= 0)
39 		if ((*s1++ = *s2++) == c)
40 			return (s1);
41 	return (0);
42 }
43