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net: netlink_getname, packet_getname -- use DECLARE_SOCKADDR guard 

Use guard DECLARE_SOCKADDR in a few more places which allow
us to catch if the structure copied back is too big.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cyrill Gorcunov 2009-11-08 05:51:19 +00:00 committed by David S. Miller
parent 37e8273cd3
commit 13cfa97bef
3 changed files with 3 additions and 3 deletions
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2
net/netlink/af_netlink.c
View File

@ -708,7 +708,7 @@ static int netlink_getname(struct socket *sock, struct sockaddr *addr,
{
struct sock *sk = sock->sk;
struct netlink_sock *nlk = nlk_sk(sk);
struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr;
DECLARE_SOCKADDR(struct sockaddr_nl *, nladdr, addr);
nladdr->nl_family = AF_NETLINK;
nladdr->nl_pad = 0;

2
net/packet/af_packet.c
View File

@ -1537,7 +1537,7 @@ static int packet_getname(struct socket *sock, struct sockaddr *uaddr,
struct net_device *dev;
struct sock *sk = sock->sk;
struct packet_sock *po = pkt_sk(sk);
struct sockaddr_ll *sll = (struct sockaddr_ll *)uaddr;
DECLARE_SOCKADDR(struct sockaddr_ll *, sll, uaddr);
if (peer)
return -EOPNOTSUPP;

2
net/unix/af_unix.c
View File

@ -1259,7 +1259,7 @@ static int unix_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_
{
struct sock *sk = sock->sk;
struct unix_sock *u;
struct sockaddr_un *sunaddr = (struct sockaddr_un *)uaddr;
DECLARE_SOCKADDR(struct sockaddr_un *, sunaddr, uaddr);
int err = 0;
if (peer) {