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Posted to dev@mina.apache.org by "Thomas Wolf (Jira)" <ji...@apache.org> on 2022/09/25 21:26:00 UTC
[jira] [Resolved] (SSHD-1195) User id/ Group id of the file and directories are not shown correctly for a single file
[ https://issues.apache.org/jira/browse/SSHD-1195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Wolf resolved SSHD-1195.
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Resolution: Not A Problem
For remote files, it's the server that does the group/user-id-to-names translation; that information is only available in the SFTP longname attribute. The client cannot do this translation.
And indeed this appears to be a problem in the OpenSSH SFTP client. It does a remote glob, which loses the SFTP longname information because it maps the SFTP info to standard stat records. If it then sees that the glob returned a single directory, it does a SFTP directory listing, which does return the longname, and it does print the longname. Otherwise it prints the info collected in the remote glob, which has only numeric group and user ids.
So not a problem in Apache MINA sshd but in OpenSSH, and partly in the SFTP protocol, which has no explicit mechanism to transport symbolic user/group names to the client except implicitly via that longname.
> User id/ Group id of the file and directories are not shown correctly for a single file
> ----------------------------------------------------------------------------------------
>
> Key: SSHD-1195
> URL: https://issues.apache.org/jira/browse/SSHD-1195
> Project: MINA SSHD
> Issue Type: Bug
> Reporter: Susmit Sarkar
> Priority: Blocker
> Attachments: image-2021-07-11-23-51-18-281.png
>
>
> Hello Team,
> I believe there is a issue while fetching the user and groupid for a particular file. The issue is not seen when you see for all files, strangely in a specified directory.
> Looks the PosixFileAttributes for group and user id is not getting set in a single file.
> Please see the screenshot below:
> !image-2021-07-11-23-51-18-281.png|width=635,height=218!
> ls -lrt works fine for all file under the directory.
> ls -lrt mina.log.8 returns 0, so it may be an issue
>
> Thanks,
> Susmit
>
>
>
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