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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 #ifndef _KMDB 31 #pragma weak _memccpy = memccpy 32 33 #include "lint.h" 34 #endif /* !_KMDB */ 35 #include <sys/types.h> 36 #include <string.h> 37 #include <stddef.h> 38 #include <memory.h> 39 40 /* 41 * Copy s0 to s, stopping if character c is copied. Copy no more than n bytes. 42 * Return a pointer to the byte after character c in the copy, 43 * or NULL if c is not found in the first n bytes. 44 */ 45 void * 46 memccpy(void *s, const void *s0, int c, size_t n) 47 { 48 if (n != 0) { 49 unsigned char *s1 = s; 50 const unsigned char *s2 = s0; 51 do { 52 if ((*s1++ = *s2++) == (unsigned char)c) 53 return (s1); 54 } while (--n != 0); 55 } 56 return (NULL); 57 } 58