From 587f44fd93a0024500418ce25bf01d0f177644f4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Anton=20L=2E=20=C5=A0ijanec?= Date: Sat, 16 May 2020 19:35:55 +0200 Subject: easier to add commands, accept values, added substirng --- lib/strlcat.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 lib/strlcat.c (limited to 'lib/strlcat.c') diff --git a/lib/strlcat.c b/lib/strlcat.c new file mode 100644 index 0000000..5d4e99e --- /dev/null +++ b/lib/strlcat.c @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2011 Apple, Inc. All rights reserved. + * + * @APPLE_LICENSE_HEADER_START@ + * + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this + * file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, + * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. + * + * @APPLE_LICENSE_HEADER_END@ + */ + +#include + +size_t +strlcat(char * restrict dst, const char * restrict src, size_t maxlen) { + const size_t srclen = strlen(src); + const size_t dstlen = strnlen(dst, maxlen); + if (dstlen == maxlen) return maxlen+srclen; + if (srclen < maxlen-dstlen) { + memcpy(dst+dstlen, src, srclen+1); + } else { + memcpy(dst+dstlen, src, maxlen-1); + dst[dstlen+maxlen-1] = '\0'; + } + return dstlen + srclen; +} + -- cgit v1.2.3