K 10
svn:author
V 5
andre
K 8
svn:date
V 27
2005-08-29T20:15:33.000000Z
K 7
svn:log
V 552
Add m_copymdata(struct mbuf *m, struct mbuf *n, int off, int len,
 int prep, int how).

Copies the data portion of mbuf (chain) n starting from offset off
for length len to mbuf (chain) m.  Depending on prep the copied
data will be appended or prepended.  The function ensures that the
mbuf (chain) m will be fully writeable by making real (not refcnt)
copies of mbuf clusters.  For the prepending the function returns
a pointer to the new start of mbuf chain m and leaves as much
leading space as possible in the new first mbuf.

Reviewed by:	glebius

END