[PROTON-2443] Workaround bug in cyrus-sasl that expects zero terminated clientid in EXTERNAL mechanism

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: proton-c-0.36.0
• Component/s: proton-c
• Assignee: Andrew Stitcher
• Reporter: Andrew Stitcher
• Created: 29/Oct/21 19:10
• Updated: 05/Nov/21 09:10
• Resolved: 29/Oct/21 19:42

Description

AMQP SASL init frame contains client response data that is the requested user and is passed to cyrus sasl with the sasl_server_start() call. There should be no need for zero termination of this string as the length is passed in to the API.

Reported to cyrus sasl: https://github.com/cyrusimap/cyrus-sasl/issues/689