/****************************************************************************/
/*	Copyright (c) 2009, Bendor Research Pty. Ltd. All rights reserved.		*/
/*	This software is released under the GNU General Public License, version	*/
/*	3, with the exemptions that 1) the header files installed by this 	 	*/
/*	package can be included in closed-source code and 2) the libraries		*/
/*	built by this package can be statically linked into a closed-source 	*/
/*	binary. See the file LICENSE for the details.							*/
/*	This software is provided "AS IS", without any warranty or guarantee.	*/
/*	By using this software you acknowledge that neither Bendor Research nor	*/
/*	any of its personnel or affiliates can be held liable for any damages,	*/
/*	including, but not limited to, loss of business, loss of money, loss of */
/*	life, loss of reputation, arising out of this software being faulty or	*/
/*	not performing as advertised, even if Bendor Research was aware of such	*/
/*	faults in the software. You use this software at your own risk, any and */
/*	all liabilities that arise out of your using this software are strictly	*/
/*	yours.																	*/
/****************************************************************************/

#include <string.h>

/** @addtogroup string */
/** @{ */

/**
*	Return the length of a NUL terminated string, with a limit.
*
*	The function calculates the length of a string but it does not
*	test more than a given number characters. If the limit is reached,
*	the function stops, even if no NUL character was seen. The function
*	does not read beyond the given number of characters.
*
*	@param	s		Pointer to the string.
*	@param	m		The maximum length of the string
*	@return			The number of characters in the string before the
*					terminating NUL or m, if the first m characters
*					of the string did not contain a NUL character.
*/

size_t	strnlen( const char *s, size_t m )
{
const	char	*p = s;

	for ( ;; ) {

		if ( ! m-- ) return( s - p );
		if ( ! *s++ ) return( s - p - 1 );
	}
}

/** @} */

