openssh bugs - Mar 2019 - [Bug 2978] New: download status file

https://bugzilla.mindrot.org/show_bug.cgi?id=2978

            Bug ID: 2978
           Summary: download status file
           Product: Portable OpenSSH
           Version: -current
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: sftp
          Assignee: unassigned-bugs at mindrot.org
          Reporter: life25go at ukr.net

step to reproduce
1. download file from sftp server
$ echo -n "get file.txt"|sftp -a user at host -
Connected to user at host.
sftp> get file.txt
Resuming /home/user/file.txt to file.txt
/home/user/file.txt

2. check file with stat utility
$ stat file.txt
Access: 2019-03-12 18:25:30.326646411 +0200
Modify: 2019-03-12 18:25:30.328646433 +0200
Change: 2019-03-12 18:25:30.328646433 +0200

3. repeat step 1
$ echo -n "get file.txt"|sftp -a user at host -
Connected to user at host.
sftp> get file.txt
Resuming /home/user/file.txt to file.txt
/home/user/file.txt

4. check file with stat utility again
$ stat file.txt
Access: 2019-03-12 18:25:30.326646411 +0200
Modify: 2019-03-12 18:25:30.328646433 +0200
Change: 2019-03-12 18:25:30.328646433 +0200
file not modified!

expected results:
in step 3 suppress the output line
Resuming /home/user/file.txt to file.txt
or in some way show that file not modified?

Some times i need update files from server.
But not all files could be modified.
It will be nice to see what files really downloaded(or modified).

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
Created attachment 3284
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3284&action=edit
Print "not modified" message when resumed transfer does not modify
files

I guess we could do something like the attached: print a "not
modified"
message when a resumed transfer results in no file changes.

E.g.

$ ./sftp -D ./sftp-server
Attached to ./sftp-server.
sftp> lcd /tmp
sftp> get /bin/ls
Fetching /bin/ls to ls
/bin/ls                                       100%  132KB 161.8MB/s  
00:00    
sftp> reget /bin/ls
Resuming /bin/ls to ls
/bin/ls                                       100%  132KB   0.0KB/s  
00:00    
File "ls" was not modified

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |2988


Referenced Bugs:

https://bugzilla.mindrot.org/show_bug.cgi?id=2988
[Bug 2988] Tracking bug for 8.1 release
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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dtucker at dtucker.net
   Attachment #3284|                            |ok?(dtucker at dtucker.net)
              Flags|                            |

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Darren Tucker <dtucker at dtucker.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #3284|ok?(dtucker at dtucker.net)    |ok+
              Flags|                            |

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #2 from Damien Miller <djm at mindrot.org> ---
Patch applied and will be in OpenSSH 8.1 - thanks.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #3 from Damien Miller <djm at mindrot.org> ---
Closing all resolved bug with release of openssh-8.2

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