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31 lines
1.1 KiB
C
31 lines
1.1 KiB
C
/* Find the length of STRING, but scan at most MAXLEN characters.
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Copyright (C) 2005-2007, 2009-2022 Free Software Foundation, Inc.
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Written by Simon Josefsson.
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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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#include <string.h>
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/* Find the length of STRING, but scan at most MAXLEN characters.
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If no '\0' terminator is found in that many characters, return MAXLEN. */
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size_t
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strnlen (const char *string, size_t maxlen)
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{
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const char *end = memchr (string, '\0', maxlen);
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return end ? (size_t) (end - string) : maxlen;
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}
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