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Posted to dev@qpid.apache.org by "Andrew Stitcher (Jira)" <ji...@apache.org> on 2022/07/07 17:25:00 UTC

[jira] [Commented] (PROTON-2104) [cpp] Error specifying url with IPv6 literal host address

    [ https://issues.apache.org/jira/browse/PROTON-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17563900#comment-17563900 ] 

Andrew Stitcher commented on PROTON-2104:
-----------------------------------------

Actually you can't use a link local address like fe80::c662:ab36:1ef1:1596 without specifying  the scope of the address and so this example will always fail in a similar fashion.

If you do add the link scope then this works correctly for me:

{{$ cpp/examples/simple_send -a [fe80::f0c8:9d35:768b:2df0%wlp2s0]/blah}}
{{all messages confirmed}}

Similarly if I use a correct global address it also works:

{{$ cpp/examples/simple_send -a [2a00:23c5:2b82:a001:7055:2efa:945c:547]/blah}}
{{all messages confirmed}}

If you add the link scope or use a global address then the C clients also work:

{{$ c/examples/send 'fe80::f0c8:9d35:768b:2df0%wlp2s0' 5672 blah}}
{{10 messages sent and acknowledged}}

and

{{$ c/examples/send '2a00:23c5:2b82:a001:7055:2efa:945c:547' 5672 blah}}
{{10 messages sent and acknowledged}}

So it's not clear to me that there is actually any bug here at all!

> [cpp] Error specifying url with IPv6 literal host address
> ---------------------------------------------------------
>
>                 Key: PROTON-2104
>                 URL: https://issues.apache.org/jira/browse/PROTON-2104
>             Project: Qpid Proton
>          Issue Type: Bug
>          Components: cpp-binding
>    Affects Versions: proton-c-0.29.0, proton-c-0.33.0
>            Reporter: Charles E. Rolke
>            Assignee: Andrew Stitcher
>            Priority: Major
>
> C++ examples simple_send and simple_recv accept IPv6 loopback address [::1] but have issues with other apparently legal addresses.
> These work on my system:
> {noformat}
> ping6 fe80::c662:ab36:1ef1:1596
> ping6 fe80::c662:ab36:1ef1:1596%wlp4s0
> ping6 fe80:0000:0000:0000:c662:ab36:1ef1:1596
> {noformat}
> Wrapping the host part in square brackets and sending that address to simple_send fails:
> {noformat}
>  ./simple_send -a [fe80::c662:ab36:1ef1:1596]:5672/abc
>  proton:io: Invalid argument - on connect fe80::c662:ab36:1ef1:1596:5672
> {noformat}
> All three variants of the address that work with ping6 fail with the same error on the simple_send command line.
>  



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