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Posted to dev@mina.apache.org by "Lyor Goldstein (Jira)" <ji...@apache.org> on 2020/02/27 09:18:00 UTC

[jira] [Comment Edited] (SSHD-970) transferTo function of SftpRemotePathChannel will loop if count parameter is greater than file size

    [ https://issues.apache.org/jira/browse/SSHD-970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17046374#comment-17046374 ] 

Lyor Goldstein edited comment on SSHD-970 at 2/27/20 9:17 AM:
--------------------------------------------------------------

Yes - I believe you are right - good catch... but this seems to relate to line 358 - are we looking at the same code ? Have you fetched the latest _master_  version ?


was (Author: lgoldstein):
Yes - I believe you are right - good catch...

> transferTo function of SftpRemotePathChannel will loop if count parameter is greater than file size
> ---------------------------------------------------------------------------------------------------
>
>                 Key: SSHD-970
>                 URL: https://issues.apache.org/jira/browse/SSHD-970
>             Project: MINA SSHD
>          Issue Type: Bug
>    Affects Versions: 2.4.1
>            Reporter: Michele Milesi
>            Assignee: Guillaume Nodet
>            Priority: Major
>              Labels: patch
>             Fix For: 2.4.1
>
>         Attachments: SftpRemotePathChannel.patch
>
>
> The method {{transferTo}} of {{SftpRemotePathChannel}} does not checks {{eof}} condition.
>  * The exit condition from the reading loop is that totalRead variable is not less than count parameter.
>  * At eof the value the method does not increment the totalRead variable
>  * If {{count}} parameter value is greater than source file size the value of {{totalRead}} will never reach the {{count}} value
> In order to exit from the loop we need to check the eof condition.
> The attached patch contains:
>  * A junit test (added to SftpRemotePathChannelTest.java)
>  * A simple fix to the exit condition
> The problem was found on:
>  * 2.4.0 released version
>  * current git head



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