From ea628b4d207f9ffd5bdd8b4bf6d4378b46268b98 Mon Sep 17 00:00:00 2001 From: Atanas Filipov Date: Sun, 8 Jul 2018 17:52:05 +0300 Subject: Initial commit --- src/strncat.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 src/strncat.c (limited to 'src/strncat.c') diff --git a/src/strncat.c b/src/strncat.c new file mode 100644 index 0000000..55ec182 --- /dev/null +++ b/src/strncat.c @@ -0,0 +1,60 @@ +/* + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is refactored by Atanas Filipov - it.feel.filipov@gmail.com + * + * 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. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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 * strncat(char * dst, const char * src, size_t n) +{assert((dst) && (src)); + + if (n != 0) { + + char *d = dst; + const char *s = src; + + while (*d != 0) { + d++; + } + + do { + if ((*d = *s++) == 0) { + break; + } + d++; + } while (--n != 0); + + *d = 0; + } + + return (dst); +} -- cgit v1.2.3