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 #pragma ident "%Z%%M% %I% %E% SMI" 23 /* from UCB 4.1 80/12/21 */ 24 25 /* 26 * Concatenate s2 on the end of s1. S1's space must be large enough. 27 * At most n characters are moved. 28 * Return s1. 29 */ 30 31 char * 32 strncat(s1, s2, n) 33 register char *s1, *s2; 34 register n; 35 { 36 register char *os1; 37 38 os1 = s1; 39 while (*s1++) 40 ; 41 --s1; 42 while (*s1++ = *s2++) 43 if (--n < 0) { 44 *--s1 = '\0'; 45 break; 46 } 47 return (os1); 48 } 49