From b7058842c940ad2c08dd829b21e5c92ebe3b8758 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 30 Sep 2009 16:12:20 -0700 Subject: net: Make setsockopt() optlen be unsigned. This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller --- include/net/compat.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/net/compat.h') diff --git a/include/net/compat.h b/include/net/compat.h index 5bbf8bf9efe..7c3002832d0 100644 --- a/include/net/compat.h +++ b/include/net/compat.h @@ -40,8 +40,8 @@ extern int put_cmsg_compat(struct msghdr*, int, int, int, void *); extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int); -extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, int, - int (*)(struct sock *, int, int, char __user *, int)); +extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int, + int (*)(struct sock *, int, int, char __user *, unsigned int)); extern int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *, int (*)(struct sock *, int, int, char __user *, int __user *)); -- cgit v1.2.3