Merged revisions 373551 via svnmerge from

Merged revisions 373551 via svnmerge from
file:///srv/subversion/repos/asterisk/branches/10

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  r373551 | file | 2012-09-25 07:00:23 -0500 (Tue, 25 Sep 2012) | 15 lines

  Fix an issue where a caller to ast_write on a MulticastRTP channel would determine it failed when in reality it did not.

  When sending RTP packets via multicast the amount of data sent is stored in a variable and returned
  from the write function. This is incorrect as any non-zero value returned is considered a failure while
  a return value of 0 is success. For callers (such as ast_streamfile) that checked the return value
  they would have considered it a failure when in reality nothing went wrong and it was actually a success.

  The write function for the multicast RTP engine now returns -1 on failure and 0 on success, as it should.

  (closes issue ASTERISK-17254)
  Reported by: wybecom
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  Merged revisions 373550 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/10-digiumphones@373577 65c4cc65-6c06-0410-ace0-fbb531ad65f3