Merged revisions 237573 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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  r237573 | tilghman | 2010-01-04 15:45:46 -0600 (Mon, 04 Jan 2010) | 6 lines
  
  Bounds checking for input string
  (closes issue #16407)
   Reported by: qwell
   Patches: 
         20100104__issue16407.diff.txt uploaded by tilghman (license 14)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@237574 65c4cc65-6c06-0410-ace0-fbb531ad65f3