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net: Make setsockopt() optlen be unsigned.

Browse source 
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 <[email protected]>
This commit is contained in:
David S. Miller 2009-09-30 16:12:20 -07:00
commit b7058842c9
67 changed files with 149 additions and 153 deletions
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2
net/llc/af_llc.c
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@ -973,7 +973,7 @@ static int llc_ui_ioctl(struct socket *sock, unsigned int cmd,
* Set various connection specific parameters.
*/
static int llc_ui_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, int optlen)
char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
struct llc_sock *llc = llc_sk(sk);