/*
 * wpa_supplicant/hostapd / Internal implementation of OS specific functions
 * Copyright (c) 2005-2006, Jouni Malinen <j@w1.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 *
 * This file is an example of operating system specific  wrapper functions.
 * This version implements many of the functions internally, so it can be used
 * to fill in missing functions from the target system C libraries.
 *
 * Some of the functions are using standard C library calls in order to keep
 * this file in working condition to allow the functions to be tested on a
 * Linux target. Please note that OS_NO_C_LIB_DEFINES needs to be defined for
 * this file to work correctly. Note that these implementations are only
 * examples and are not optimized for speed.
 */

/* This is copied from wpa_supplicant-0.7.3/src/utils/os_internal.c */

#include "includes.h"

#undef OS_REJECT_C_LIB_FUNCTIONS
#include "os.h"

size_t os_strlcpy(char *dest, const char *src, size_t siz)
{
	const char *s = src;
	size_t left = siz;

	if (left) {
		/* Copy string up to the maximum size of the dest buffer */
		while (--left != 0) {
			if ((*dest++ = *s++) == '\0')
				break;
		}
	}

	if (left == 0) {
		/* Not enough room for the string; force NUL-termination */
		if (siz != 0)
			*dest = '\0';
		while (*s++)
			; /* determine total src string length */
	}

	return s - src - 1;
}
