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) 1986 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * Concatenate s2 on the end of s1. S1's space must be large enough. 34 * At most n characters are moved. 35 * return s1. 36 */ 37 38 #pragma weak _wcsncat = wcsncat 39 #pragma weak _wsncat = wsncat 40 41 #include "lint.h" 42 #include <stdlib.h> 43 #include <wchar.h> 44 45 wchar_t * 46 wcsncat(wchar_t *s1, const wchar_t *s2, size_t n) 47 { 48 wchar_t *os1 = s1; 49 50 while (*s1++) /* find end of s1 */ 51 ; 52 ++n; 53 --s1; 54 while (*s1++ = *s2++) /* copy s2 to s1 */ 55 if (--n == 0) { /* at most n chars */ 56 *--s1 = 0; 57 break; 58 } 59 return (os1); 60 } 61 62 wchar_t * 63 wsncat(wchar_t *s1, const wchar_t *s2, size_t n) 64 { 65 return (wcsncat(s1, s2, n)); 66 } 67