netsukuku/src/buffer.c

/* This file is part of Netsukuku
 * (c) Copyright 2005 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
 *
 * This source code 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 2 of the License,
 * or (at your option) any later version.
 *
 * This source code 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.
 * Please refer to the GNU Public License for more details.
 *
 * You should have received a copy of the GNU Public License along with
 * this source code; if not, write to:
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * --
 * buffer.c: various functions to manipulate buffers
 */

/*
 * is_bufzero
 *
 * Is the buffer `a' filled with `sz'# of zeros?
 * If yes return 1. 
 */
int
is_bufzero(const void *a, int sz)
{
	const char *p = a;
	int i;
	for (i = 0; i < sz; i++, p++)
		if (*p)
			return 0;
	return 1;
}