diff options
Diffstat (limited to 'sys/netinet6/raw_ip6.c')
| -rw-r--r-- | sys/netinet6/raw_ip6.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c index 1b27a00f625..0f735c0b9fa 100644 --- a/sys/netinet6/raw_ip6.c +++ b/sys/netinet6/raw_ip6.c @@ -1,5 +1,5 @@ -/* $OpenBSD: raw_ip6.c,v 1.3 2001/02/16 16:08:01 itojun Exp $ */ -/* $KAME: raw_ip6.c,v 1.65 2001/02/08 18:36:17 itojun Exp $ */ +/* $OpenBSD: raw_ip6.c,v 1.4 2001/03/04 16:48:25 itojun Exp $ */ +/* $KAME: raw_ip6.c,v 1.69 2001/03/04 15:55:44 itojun Exp $ */ /* * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. @@ -471,9 +471,8 @@ rip6_output(m, va_alist) if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 || in6p->in6p_cksum != -1) { - struct mbuf *n; int off; - u_int16_t *p; + u_int16_t sum; #define offsetof(type, member) ((size_t)(&((type *)0)->member)) /* XXX */ @@ -488,16 +487,10 @@ rip6_output(m, va_alist) } off += sizeof(struct ip6_hdr); - n = m; - while (n && n->m_len <= off) { - off -= n->m_len; - n = n->m_next; - } - if (!n) - goto bad; - p = (u_int16_t *)(mtod(n, caddr_t) + off); - *p = 0; - *p = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen); + sum = 0; + m_copyback(m, off, sizeof(sum), (caddr_t)&sum); + sum = in6_cksum(m, ip6->ip6_nxt, sizeof(*ip6), plen); + m_copyback(m, off, sizeof(sum), (caddr_t)&sum); } #ifdef IPSEC |