--- libelwix/src/pack.c	2014/02/11 01:06:21	1.6
+++ libelwix/src/pack.c	2014/02/11 13:25:09	1.6.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: pack.c,v 1.6 2014/02/11 01:06:21 misho Exp $
+* $Id: pack.c,v 1.6.2.1 2014/02/11 13:25:09 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -97,6 +97,77 @@ rpack_destroy(rpack_t ** __restrict rp)
 		e_free(*rp);
 		*rp = NULL;
 	}
+}
+
+/*
+ * rpack_attach() - Attach dynamic allocating buffer at packet
+ *
+ * @rp = raw packet;
+ * @len = allocate bytes
+ * return: -1 error or 0 ok, should be detached with rpack_detach() 
+ * 				before call rpack_destroy() after use!
+ */
+int
+rpack_attach(rpack_t * __restrict rp, size_t len)
+{
+	if (!rp)
+		return -1;
+
+	rp->r_buf = e_malloc(len);
+	if (!rp->r_buf) {
+		RPACK_FREE(rp);
+		return -1;
+	} else
+		rp->r_len = len;
+	rp->r_next = rp->r_buf;
+
+	return 0;
+}
+
+/*
+ * rpack_resize() - Resize dynamic allocated buffer at packet
+ *
+ * @rp = raw packet
+ * @newlen = resize buffer to bytes
+ * return: -1 error or 0 ok, should be detached with rpack_detach() 
+ * 				before call rpack_destroy() after use!
+ */
+int
+rpack_resize(rpack_t * __restrict rp, size_t newlen)
+{
+	void *buf = NULL;
+
+	if (!rp)
+		return -1;
+
+	buf = e_realloc(rp->r_buf, newlen);
+	if (!buf)
+		return -1;
+	else {
+		rp->r_buf = buf;
+		rp->r_len = newlen;
+	}
+
+	if (rp->r_next > (rp->r_buf + rp->r_len))
+		rp->r_next = rp->r_buf;
+
+	return 0;
+}
+
+/*
+ * rpack_detach() - Detach and free dynamic allocated buffer from packet
+ *
+ * @rp = raw packet
+ * return: none
+ */
+void
+rpack_detach(rpack_t * __restrict rp)
+{
+	if (!rp)
+		return;
+
+	e_free(rp->r_buf);
+	RPACK_FREE(rp);
 }
 
 /*