[ 
https://issues.apache.org/jira/browse/PROTON-1473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16884137#comment-16884137
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ASF subversion and git services commented on PROTON-1473:
---------------------------------------------------------

Commit 45dba0047dab66465e011a0b65d21af670772aa3 in qpid-proton's branch 
refs/heads/master from Andrew Stitcher
[ https://gitbox.apache.org/repos/asf?p=qpid-proton.git;h=45dba00 ]

PROTON-1473: Better behaviour if peer disconnects in the middle of header 
exchange
- Especially if the server disconnects the client because of authentication 
failure
  There is no more spurious 'Header mismatch' error.


> [cpp] Cryptic error message when connection fails because server end requires 
> SASL
> ----------------------------------------------------------------------------------
>
>                 Key: PROTON-1473
>                 URL: https://issues.apache.org/jira/browse/PROTON-1473
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: cpp-binding
>    Affects Versions: proton-c-0.17.0
>         Environment: Fedora 25
> Client: examples/cpp/helloworld
> Server: Dispatch router listener configured with authenticatePeer: yes and a 
> suitable common sasl mechanism
>            Reporter: Chuck Rolke
>            Assignee: Andrew Stitcher
>            Priority: Major
>              Labels: sasl
>
> If you specify the URL with no credentials:
> {noformat}
> cpp> ./helloworld 192.168.0.16:5674/aaa
> amqp:connection:framing-error: AMQP header mismatch: Insufficient data to 
> determine protocol [''] (connection aborted)
> {noformat}
> This error message is true in a strict sense but does not give a user much of 
> a clue about what's wrong.
> The same setup with good URL credentials:
> {noformat}
> cpp> ./helloworld user:password@192.168.0.16:5674/aaa
> Hello World!
> {noformat}
> The same setup with bad URL credentials:
> {noformat}
> cpp> ./helloworld user:passwords@192.168.0.16:5674/aaa
> amqp:unauthorized-access: Authentication failed [mech=DIGEST-MD5]
> {noformat}
> This error message is good.



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