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43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/*
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* Copyright (C) 2007 Alan Robertson <alanr@unix.sh>
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* This software licensed under the GNU LGPL.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "os_base.h"
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/*
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* strlcat() appends string src to the end of dst. It will append at most
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* maxlen - strlen(dst) - 1 characters. It will then NUL-terminate, unless
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* maxlen is 0 or the original dst string was longer than maxlen (in
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* practice this should not happen as it means that either maxlen is
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* incorrect or that dst is not a proper string).
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*
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* @return the total length of the string it tried to create
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* (the length of dst plus the length of src).
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*/
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size_t
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strlcat(char *dest, const char * src, size_t maxlen)
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{
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size_t curlen = strlen(dest);
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size_t addlen = strlen(src);
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size_t appendlen = maxlen - curlen;
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if (appendlen > 0) {
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strlcpy(dest+curlen, src, appendlen);
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}
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return curlen + addlen;
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}
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