17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57257d1b4Sraf * Common Development and Distribution License (the "License"). 67257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217257d1b4Sraf 227c478bd9Sstevel@tonic-gate /* 23*23a1cceaSRoger A. Faulkner * Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate /* Copyright (c) 1986 AT&T */ 277c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 287c478bd9Sstevel@tonic-gate 297257d1b4Sraf #pragma weak _wcsncpy = wcsncpy 307257d1b4Sraf #pragma weak _wsncpy = wsncpy 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #include "lint.h" 337c478bd9Sstevel@tonic-gate #include <stdlib.h> 347c478bd9Sstevel@tonic-gate #include <wchar.h> 357c478bd9Sstevel@tonic-gate 36*23a1cceaSRoger A. Faulkner /* 37*23a1cceaSRoger A. Faulkner * Copy s2 to s1, truncating or null-padding to always copy n 38*23a1cceaSRoger A. Faulkner * wide-character codes. Return s1. 39*23a1cceaSRoger A. Faulkner */ 407c478bd9Sstevel@tonic-gate wchar_t * 417257d1b4Sraf wcsncpy(wchar_t *s1, const wchar_t *s2, size_t n) 427c478bd9Sstevel@tonic-gate { 437c478bd9Sstevel@tonic-gate wchar_t *os1 = s1; 447c478bd9Sstevel@tonic-gate 457c478bd9Sstevel@tonic-gate n++; 46*23a1cceaSRoger A. Faulkner while (--n > 0 && (*s1++ = *s2++) != 0) 47*23a1cceaSRoger A. Faulkner continue; 487c478bd9Sstevel@tonic-gate if (n > 0) 497c478bd9Sstevel@tonic-gate while (--n > 0) 507c478bd9Sstevel@tonic-gate *s1++ = 0; 517c478bd9Sstevel@tonic-gate return (os1); 527c478bd9Sstevel@tonic-gate } 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate wchar_t * 557257d1b4Sraf wsncpy(wchar_t *s1, const wchar_t *s2, size_t n) 567c478bd9Sstevel@tonic-gate { 577257d1b4Sraf return (wcsncpy(s1, s2, n)); 587c478bd9Sstevel@tonic-gate } 59*23a1cceaSRoger A. Faulkner 60*23a1cceaSRoger A. Faulkner /* 61*23a1cceaSRoger A. Faulkner * Same as wcsncpy(), except return a pointer to the terminating null 62*23a1cceaSRoger A. Faulkner * wide-character code in s1, or, if s1 is not null-terminated, s1 + n. 63*23a1cceaSRoger A. Faulkner */ 64*23a1cceaSRoger A. Faulkner wchar_t * 65*23a1cceaSRoger A. Faulkner wcpncpy(wchar_t *s1, const wchar_t *s2, size_t n) 66*23a1cceaSRoger A. Faulkner { 67*23a1cceaSRoger A. Faulkner wchar_t *os1 = s1; 68*23a1cceaSRoger A. Faulkner 69*23a1cceaSRoger A. Faulkner n++; 70*23a1cceaSRoger A. Faulkner while (--n != 0) { 71*23a1cceaSRoger A. Faulkner if ((*s1++ = *s2++) == 0) { 72*23a1cceaSRoger A. Faulkner os1 = s1 - 1; 73*23a1cceaSRoger A. Faulkner break; 74*23a1cceaSRoger A. Faulkner } 75*23a1cceaSRoger A. Faulkner os1 = s1; 76*23a1cceaSRoger A. Faulkner } 77*23a1cceaSRoger A. Faulkner if (n != 0) 78*23a1cceaSRoger A. Faulkner while (--n != 0) 79*23a1cceaSRoger A. Faulkner *s1++ = 0; 80*23a1cceaSRoger A. Faulkner return (os1); 81*23a1cceaSRoger A. Faulkner } 82