From e19d46c808267f53455e96a28ff7654211523d2c Mon Sep 17 00:00:00 2001 From: Robert Clausecker Date: Wed, 8 Nov 2023 23:25:55 -0500 Subject: lib/libc/amd64/string: implement strncpy() by calling stpncpy() Sponsored by: The FreeBSD Foundation Tested by: developers@, exp-run Approved by: mjg MFC after: 1 month MFC to: stable/14 PR: 275785 Differential Revision: https://reviews.freebsd.org/D42519 --- lib/libc/amd64/string/Makefile.inc | 1 + lib/libc/amd64/string/strncpy.c | 41 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 lib/libc/amd64/string/strncpy.c (limited to 'lib/libc') diff --git a/lib/libc/amd64/string/Makefile.inc b/lib/libc/amd64/string/Makefile.inc index cc8b0e825e3e..d982061e080b 100644 --- a/lib/libc/amd64/string/Makefile.inc +++ b/lib/libc/amd64/string/Makefile.inc @@ -15,6 +15,7 @@ MDSRCS+= \ strcspn.S \ strlen.S \ strncmp.S \ + strncpy.c \ strnlen.c \ strpbrk.c \ strrchr.S \ diff --git a/lib/libc/amd64/string/strncpy.c b/lib/libc/amd64/string/strncpy.c new file mode 100644 index 000000000000..b3d868787fbe --- /dev/null +++ b/lib/libc/amd64/string/strncpy.c @@ -0,0 +1,41 @@ +/*- + * Copyright (c) 2023 The FreeBSD Foundation + * + * This software was developed by Robert Clausecker + * under sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ''AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE + */ + +#include +#include + +char *__stpncpy(char *restrict, const char *restrict, size_t); + +char * +strncpy(char *restrict dst, const char *restrict src, size_t len) +{ + + __stpncpy(dst, src, len); + + return (dst); +} -- cgit v1.2.3