/* Find the length of STRING, but scan at most MAXLEN characters.

   Copyright (C) 2005-2007, 2009-2018 Free Software Foundation, Inc.

   Written by Simon Josefsson.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3, or (at your option)

   any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

#include <string.h>

/* Find the length of STRING, but scan at most MAXLEN characters.

   If no '\0' terminator is found in that many characters, return MAXLEN.  */

size_t

strnlen (const char *string, size_t maxlen)

{

  const char *end = memchr (string, '\0', maxlen);

  return end ? (size_t) (end - string) : maxlen;

}