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				/* $OpenBSD: strndup.c,v 1.3 2019/01/25 00:19:25 millert Exp $ */
				/* $OpenBSD: strnlen.c,v 1.9 2019/01/25 00:19:25 millert Exp $ */

				/*
				* Copyright (c) 2010 Todd C. Miller <millert@openbsd.org>
				*
				* Permission to use, copy, modify, and distribute this software for any
				* purpose with or without fee is hereby granted, provided that the above
				* copyright notice and this permission notice appear in all copies.
				*
				* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
				* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
				* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
				* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
				* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
				* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
				* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
				*/

				#include <stddef.h>
				#include <stdlib.h>
				#include <string.h>

				#include "config.h"

				#ifndef HAVE_STRNDUP

				static size_t
				strnlen(const char *str, size_t maxlen)
				{
				const char *cp;

				for (cp = str; maxlen != 0 && *cp != '\0'; cp++, maxlen--)
				;

				return (size_t)(cp - str);
				}

				char *
				strndup(const char *str, size_t maxlen)
				{
				char *copy;
				size_t len;

				len = strnlen(str, maxlen);
				copy = malloc(len + 1);
				if (copy != NULL) {
				(void)memcpy(copy, str, len);
				copy[len] = '\0';
				}

				return copy;
				}

				#endif /* !HAVE_STRNDUP */