1 files changed, 24 insertions, 0 deletions
diff --git a/sbin/ipf/libipf/dupmbt.c b/sbin/ipf/libipf/dupmbt.c
new file mode 100644
index 000000000000..722d92e2705c
--- /dev/null
+++ b/sbin/ipf/libipf/dupmbt.c
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2012 by Darren Reed.
+ *
+ * See the IPFILTER.LICENCE file for details on licencing.
+ *
+ * $Id: dupmbt.c,v 1.3.2.2 2012/07/22 08:04:24 darren_r Exp $
+ */
+
+#include "ipf.h"
+
+mb_t *
+dupmbt(mb_t *orig)
+{
+	mb_t *m;
+
+	m = (mb_t *)malloc(sizeof(mb_t));
+	if (m == NULL)
+		return (NULL);
+	m->mb_len = orig->mb_len;
+	m->mb_next = NULL;
+	m->mb_data = (char *)m->mb_buf + (orig->mb_data - (char *)orig->mb_buf);
+	bcopy(orig->mb_data, m->mb_data, m->mb_len);
+	return (m);
+}