Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b558ff799977a4eda8b3823d1cf6c1c33becb671
Commit: b558ff799977a4eda8b3823d1cf6c1c33becb671
Parent: b7aa0bf70c4afb9e38be25f5c0922498d0f8684c
Author: David S. Miller <[EMAIL PROTECTED]>
AuthorDate: Tue Mar 6 17:02:35 2007 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Apr 25 22:23:35 2007 -0700
[NETLINK]: Mirror UDP MSG_TRUNC semantics.
If the user passes MSG_TRUNC in via msg_flags, return
the full packet size not the truncated size.
Idea from Herbert Xu and Thomas Graf.
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
net/netlink/af_netlink.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index c48b0f4..5890210 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1242,6 +1242,9 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct
socket *sock,
scm_recv(sock, msg, siocb->scm, flags);
+ if (flags & MSG_TRUNC)
+ copied = skb->len;
+
out:
netlink_rcv_wake(sk);
return err ? : copied;
-
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