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49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* Find the length of STRING, but scan at most MAXLEN characters.
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Copyright (C) 1996, 1997, 1998, 2000-2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program 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 General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#undef strnlen
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#include <string.h>
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#undef __strnlen
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#undef strnlen
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#ifndef _LIBC
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# define strnlen rpl_strnlen
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#endif
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#ifndef weak_alias
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# define __strnlen strnlen
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#endif
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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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#ifdef weak_alias
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weak_alias (__strnlen, strnlen)
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#endif
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