xref: /freebsd-11-stable/contrib/ipfilter/lib/dupmbt.c (revision 0bfd163f522701b486e066fa2e56624c02f5081a) 
1 /*
2  * Copyright (C) 2012 by Darren Reed.
3  *
4  * See the IPFILTER.LICENCE file for details on licencing.
5  *
6  * $Id: dupmbt.c,v 1.3.2.2 2012/07/22 08:04:24 darren_r Exp $
7  */
8 
9 #include "ipf.h"
10 
dupmbt(orig)11 mb_t *dupmbt(orig)
12 	mb_t *orig;
13 {
14 	mb_t *m;
15 
16 	m = (mb_t *)malloc(sizeof(mb_t));
17 	if (m == NULL)
18 		return NULL;
19 	m->mb_len = orig->mb_len;
20 	m->mb_next = NULL;
21 	m->mb_data = (char *)m->mb_buf + (orig->mb_data - (char *)orig->mb_buf);
22 	bcopy(orig->mb_data, m->mb_data, m->mb_len);
23 	return m;
24 }
25