sys/netinet6/ip6_output.c

1156 	struct mbuf *mopt;
1169 		mopt = m_get(M_NOWAIT, MT_DATA);
1170 		if (mopt == NULL)
1172 		mopt->m_len = JUMBOOPTLEN;
1173 		optbuf = mtod(mopt, u_char *);
1175 		exthdrs->ip6e_hbh = mopt;
1179 		mopt = exthdrs->ip6e_hbh;
1180 		if (M_TRAILINGSPACE(mopt) < JUMBOOPTLEN) {
1187 			int oldoptlen = mopt->m_len;
1205 			bcopy(mtod(mopt, caddr_t), mtod(n, caddr_t),
1208 			m_freem(mopt);
1209 			mopt = exthdrs->ip6e_hbh = n;
1211 			optbuf = mtod(mopt, u_char *) + mopt->m_len;
1212 			mopt->m_len += JUMBOOPTLEN;
1221 		hbh = mtod(mopt, struct ip6_hbh *);