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Member "nano-4.5/lib/strnlen.c" (4 Oct 2019, 1141 Bytes) of package /linux/misc/nano-4.5.tar.xz:
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1 /* Find the length of STRING, but scan at most MAXLEN characters.
2 Copyright (C) 2005-2007, 2009-2019 Free Software Foundation, Inc.
3 Written by Simon Josefsson.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, see <https://www.gnu.org/licenses/>. */
18 #include <config.h>
20 #include <string.h>
22 /* Find the length of STRING, but scan at most MAXLEN characters.
23 If no '\0' terminator is found in that many characters, return MAXLEN. */
26 strnlen (const char *string, size_t maxlen)
28 const char *end = memchr (string, '\0', maxlen);
29 return end ? (size_t) (end - string) : maxlen;