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 <davem@davemloft.net>
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 42d00ce..6e5f0e0c 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -544,7 +544,7 @@
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 @@
int level,
int optname,
char __user *optval,
- int optlen);
+ unsigned int optlen);
int (*compat_getsockopt) (struct sock *sk,
int level,
int optname,