diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2000-05-06 01:47:06 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2000-05-06 01:47:06 +0000 |
| commit | 47a162cd84d4e690cbc0bf99a91b17e12f2ff49b (patch) | |
| tree | 72be9f86b982af87a8672a48135ad6f5cb98b925 /sys/netinet/ip_input.c | |
| parent | 2dfba2c94c71e76580bbdf5d9a00aa99c1b778c9 (diff) | |
avoid unaligned access in timestamp; http://www.newhackcity.net/advisories/20000504a_0.txt; checked by provos and itojun
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index 0702db57c88..a62dc6f916b 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ip_input.c,v 1.52 2000/04/09 17:43:02 angelos Exp $ */ +/* $OpenBSD: ip_input.c,v 1.53 2000/05/06 01:47:05 deraadt Exp $ */ /* $NetBSD: ip_input.c,v 1.30 1996/03/16 23:53:58 christos Exp $ */ /* @@ -852,7 +852,7 @@ ip_dooptions(m) register struct ip_timestamp *ipt; register struct in_ifaddr *ia; int opt, optlen, cnt, off, code, type = ICMP_PARAMPROB, forward = 0; - struct in_addr *sin, dst; + struct in_addr sin, dst; n_time ntime; dst = ip->ip_dst; @@ -993,7 +993,7 @@ ip_dooptions(m) goto bad; break; } - sin = (struct in_addr *)(cp + ipt->ipt_ptr - 1); + bcopy(cp + ipt->ipt_ptr - 1, &sin, sizeof sin); switch (ipt->ipt_flg) { case IPOPT_TS_TSONLY: @@ -1009,7 +1009,7 @@ ip_dooptions(m) if (ia == 0) continue; bcopy((caddr_t)&ia->ia_addr.sin_addr, - (caddr_t)sin, sizeof(struct in_addr)); + (caddr_t)&sin, sizeof(struct in_addr)); ipt->ipt_ptr += sizeof(struct in_addr); break; @@ -1017,7 +1017,7 @@ ip_dooptions(m) if (ipt->ipt_ptr - 1 + sizeof(n_time) + sizeof(struct in_addr) > ipt->ipt_len) goto bad; - bcopy((caddr_t)sin, (caddr_t)&ipaddr.sin_addr, + bcopy((caddr_t)&sin, (caddr_t)&ipaddr.sin_addr, sizeof(struct in_addr)); if (ifa_ifwithaddr((SA)&ipaddr) == 0) continue; |