deadbeef 996fc6bdb7 Don't crash if STUN error message is missing ERROR-CODE attribute.
This is something a well-behaving STUN server shouldn't do, but we shouldn't
crash if it does happen.

Also adding helper function for the common operation of extracting just
the error code out of a STUN packet.

BUG=chromium:708469

Review-Url: https://codereview.webrtc.org/2837133003
Cr-Commit-Position: refs/heads/master@{#17892}
2017-04-26 16:21:22 +00:00
..
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2017-04-26 06:42:15 +00:00
2017-04-25 07:35:35 +00:00
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Name: WebRTC
URL: http://www.webrtc.org
Version: 90
License: BSD
License File: LICENSE

Description:
WebRTC provides real time voice and video processing
functionality to enable the implementation of 
PeerConnection/MediaStream.

Third party code used in this project is described 
in the file LICENSE_THIRD_PARTY.