49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/* strnlen - return length of passed string, with length limit */
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/* Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash 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 3 of the License, or
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(at your option) any later version.
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Bash 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
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along with Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if !defined (HAVE_STRNLEN)
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#include <sys/types.h>
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#if defined (HAVE_UNISTD_H)
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# include <unistd.h>
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#endif
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#include <stdc.h>
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/* Find the length of S, but scan at most MAXLEN characters. If no '\0'
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terminator is found within the first MAXLEN characters, return MAXLEN. */
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size_t
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strnlen (s, maxlen)
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register const char *s;
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size_t maxlen;
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{
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register const char *e;
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size_t n;
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for (e = s, n = 0; *e && n < maxlen; e++, n++)
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;
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return n;
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}
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#endif
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