1 /*
2 * Copyright (c) 2011 Apple, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24 #include "strings.h"
25
26 __attribute__((visibility("hidden")))
27 size_t
_libkernel_strlcpy(char * restrict dst,const char * restrict src,size_t maxlen)28 _libkernel_strlcpy(char * restrict dst, const char * restrict src, size_t maxlen)
29 {
30 const size_t srclen = _libkernel_strlen(src);
31 if (srclen < maxlen) {
32 _libkernel_memmove(dst, src, srclen + 1);
33 } else if (maxlen != 0) {
34 _libkernel_memmove(dst, src, maxlen - 1);
35 dst[maxlen - 1] = '\0';
36 }
37 return srclen;
38 }
39