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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 <davem@davemloft.net>
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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4
include/net/sctp/structs.h
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@ -544,7 +544,7 @@ struct sctp_af {
int level,
int optname,
char __user *optval,
int optlen);
unsigned int optlen);
int (*getsockopt) (struct sock *sk,
int level,
int optname,
@ -554,7 +554,7 @@ struct sctp_af {
int level,
int optname,
char __user *optval,
int optlen);
unsigned int optlen);
int (*compat_getsockopt) (struct sock *sk,
int level,
int optname,