xref: /freebsd/lib/libc/amd64/string/strncpy.c (revision e19d46c808267f53455e96a28ff7654211523d2c)
1*e19d46c8SRobert Clausecker /*-
2*e19d46c8SRobert Clausecker  * Copyright (c) 2023 The FreeBSD Foundation
3*e19d46c8SRobert Clausecker  *
4*e19d46c8SRobert Clausecker  * This software was developed by Robert Clausecker <fuz@FreeBSD.org>
5*e19d46c8SRobert Clausecker  * under sponsorship from the FreeBSD Foundation.
6*e19d46c8SRobert Clausecker  *
7*e19d46c8SRobert Clausecker  * Redistribution and use in source and binary forms, with or without
8*e19d46c8SRobert Clausecker  * modification, are permitted provided that the following conditions
9*e19d46c8SRobert Clausecker  * are met:
10*e19d46c8SRobert Clausecker  * 1. Redistributions of source code must retain the above copyright
11*e19d46c8SRobert Clausecker  *    notice, this list of conditions and the following disclaimer.
12*e19d46c8SRobert Clausecker  * 2. Redistributions in binary form must reproduce the above copyright
13*e19d46c8SRobert Clausecker  *    notice, this list of conditions and the following disclaimer in the
14*e19d46c8SRobert Clausecker  *    documentation and/or other materials provided with the distribution.
15*e19d46c8SRobert Clausecker  *
16*e19d46c8SRobert Clausecker  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ''AS IS'' AND
17*e19d46c8SRobert Clausecker  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18*e19d46c8SRobert Clausecker  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19*e19d46c8SRobert Clausecker  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20*e19d46c8SRobert Clausecker  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21*e19d46c8SRobert Clausecker  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22*e19d46c8SRobert Clausecker  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23*e19d46c8SRobert Clausecker  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24*e19d46c8SRobert Clausecker  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*e19d46c8SRobert Clausecker  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*e19d46c8SRobert Clausecker  * SUCH DAMAGE
27*e19d46c8SRobert Clausecker  */
28*e19d46c8SRobert Clausecker 
29*e19d46c8SRobert Clausecker #include <sys/cdefs.h>
30*e19d46c8SRobert Clausecker #include <string.h>
31*e19d46c8SRobert Clausecker 
32*e19d46c8SRobert Clausecker char *__stpncpy(char *restrict, const char *restrict, size_t);
33*e19d46c8SRobert Clausecker 
34*e19d46c8SRobert Clausecker char *
35*e19d46c8SRobert Clausecker strncpy(char *restrict dst, const char *restrict src, size_t len)
36*e19d46c8SRobert Clausecker {
37*e19d46c8SRobert Clausecker 
38*e19d46c8SRobert Clausecker 	__stpncpy(dst, src, len);
39*e19d46c8SRobert Clausecker 
40*e19d46c8SRobert Clausecker 	return (dst);
41*e19d46c8SRobert Clausecker }
42