Merged revisions 321100 via svnmerge from

Merged revisions 321100 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.8

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  r321100 | markm | 2011-05-26 16:09:35 -0400 (Thu, 26 May 2011) | 11 lines

  ast_sockaddr_resolve() in netsock2.c may deref a null pointer

  Added a null check in netsock2 ast_sockaddr_resolve() as well as added default initalizers in chan_sip parse_uri_legacy_check() to make sure that invalid uris will make null (and not undefined) user,pass,domain,transport variables

  (closes issue #19346)
  Reported by: kobaz
  Patches:
        netsock2.patch uploaded by kobaz (license 834)
  Tested by: kobaz, Marquis
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@321101 65c4cc65-6c06-0410-ace0-fbb531ad65f3