DragonFly-2.3.2.92.g4466b9 master libexec/dma dma.c

[Simon Schubert]

commit 4466b9c28dec3932614c842bd17d3a38668f1dbb
Author: Simon Schubert <simon.schubert at epfl.ch>
Date:   Thu Jul 9 23:24:35 2009 +0200

    dma: prevent races from sharing fd between children
    
    On fork, fds are shared between children.  If two processes work on
    different recipients, but on the same queue file, they might get
    confused when the fd (and thus the offset) is shared.  Prevent this by
    re-opening the queue file after fork.
    
    Reported-by: Daniel Roethlisberger <daniel at roe.ch>

Summary of changes:
 libexec/dma/dma.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/4466b9c28dec3932614c842bd17d3a38668f1dbb


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