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[TIPC]: Allow stream receive to read from multiple TIPC messages 

This patch allows a stream socket to receive data from multiple
TIPC messages in its receive queue, without requiring the use of
the MSG_WAITALL flag.

Acknowledgements to Florian Westphal <fw-tipc@strlen.de> for
identifying this issue and suggesting how to correct it.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Allan Stephens 2008-04-15 00:07:15 -07:00 committed by David S. Miller
parent 990098068f
commit a198d3a200
1 changed files with 3 additions and 1 deletions
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4
net/tipc/socket.c
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@ -1065,7 +1065,9 @@ restart:
/* Loop around if more data is required */
if ((sz_copied < buf_len) /* didn't get all requested data */
&& (flags & MSG_WAITALL) /* ... and need to wait for more */
&& (!skb_queue_empty(&sock->sk->sk_receive_queue) ||
(flags & MSG_WAITALL))
/* ... and more is ready or required */
&& (!(flags & MSG_PEEK)) /* ... and aren't just peeking at data */
&& (!err) /* ... and haven't reached a FIN */
)