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 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 #include "synonyms.h" 34 #include <string.h> 35 #include <sys/types.h> 36 37 /* 38 * Concatenate s2 on the end of s1. S1's space must be large enough. 39 * At most n characters are moved. 40 * Return s1. 41 */ 42 char * 43 strncat(char *s1, const char *s2, size_t n) 44 { 45 char *os1 = s1; 46 47 n++; 48 while (*s1++) 49 ; 50 --s1; 51 while (*s1++ = *s2++) 52 if (--n == 0) { 53 s1[-1] = '\0'; 54 break; 55 } 56 return (os1); 57 } 58