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From: Bruce M Simpson <bms@FreeBSD.org>
Date: Wed, 29 Apr 2009 09:58:31 +0000 (UTC)
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Subject: cvs commit: src/lib/libc/net sourcefilter.c
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bms         2009-04-29 09:58:31 UTC

  FreeBSD src repository

  Modified files:
    lib/libc/net         sourcefilter.c 
  Log:
  SVN rev 191654 on 2009-04-29 09:58:31Z by bms
  
  Fix an obvious bug in getsourcefilter()'s use of struct __msfilterreq;
  the kernel will return in msfr_nsrcs the number of source filters
  in-mode for a given multicast group.
  However, the filters themselves were never copied out, as the libc
  function clobbers this field with zero, causing the kernel to assume
  the provided vector of struct sockaddr_storage has zero length.
  This bug would only affect users of SSM multicast, which is shimmed
  in 7.x.
  Picked up during mtest(8) refactoring.
  
  MFC after:      1 day
  
  Revision  Changes    Path
  1.5       +3 -2      src/lib/libc/net/sourcefilter.c