unix/dgram: fix peeking with an offset larger than data in queue

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Currently, peeking on a unix datagram socket with an offset larger than len of
the data in the sk receive queue returns immediately with bogus data. That's
because *off is not reset between each skb_queue_walk().

This patch fixes this so that the behavior is the same as peeking with no
offset on an empty queue: the caller blocks.

Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Benjamin Poirier 2013-04-29 11:42:13 +00:00 • committed by David S. Miller

parent add05ad4e9

commit 39cc86130b

1 changed files with 13 additions and 8 deletions

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21

net/core/datagram.c

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