36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
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/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
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Copyright (C) 2005-2006, 2009-2023 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include "strnlen1.h"
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#include <string.h>
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/* Find the length of STRING + 1, but scan at most MAXLEN bytes.
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If no '\0' terminator is found in that many characters, return MAXLEN. */
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/* This is the same as strnlen (string, maxlen - 1) + 1. */
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size_t
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strnlen1 (const char *string, size_t maxlen)
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{
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const char *end = (const char *) memchr (string, '\0', maxlen);
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if (end != NULL)
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return end - string + 1;
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else
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return maxlen;
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}
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