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Option --create-file-mode has no effect #6657

JohannesLesr opened this issue Feb 25, 2021 · 4 comments

Option --create-file-mode has no effect #6657

JohannesLesr opened this issue Feb 25, 2021 · 4 comments


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Hello Daniel,
Hello everybody,

I tried this new feature you kindly provided. Unfortunately it had no
effekt on the mode of the created file. Here is what I did. I used
Ubuntu 20.4.1 to compile the final version of curl 7.75.0 with the
following commands:

./configure --with-libssh2
sudo make install

and I got the following curl version without any warnings:

curl 7.75.0 (x86_64-pc-linux-gnu) libcurl/7.75.0 OpenSSL/1.1.1f
zlib/1.2.11 libssh2/1.8.0
Release-Date: 2021-02-03
Protocols: dict file ftp ftps gopher gophers http https imap imaps mqtt
pop3 pop3s rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS HTTPS-proxy IPv6 Largefile libz NTLM NTLM_WB
SSL TLS-SRP UnixSockets

I then tried to upload a file to localhost (same Ubuntu machine) several

curl -k -u jojo:password --create-file-mode 777 -T Zahnpasta.txt
curl -k -u jojo:password --create-file-mode 0777 -T Zahnpasta.txt

The upload worked out without warnings but the file still has the 644
permissions .

What do I have to do to get this feature working?

Thanks in advance,


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bagder commented Feb 25, 2021

Is that an openssh SFTP server in the other end? What umask do you run that with?

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It's a default ubuntu installation. In my sshd_config I found the following line:

# override default of no subsystems
Subsystem sftp /usr/lib/openssh/sftp-server

and no other config-files are included. So I assume I'm using openssh SFTP.

My sshd-process runs as root and root has the umask 0022.
Even restricting the permissions to --create-file-mode 0600 has no effect.

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bagder commented Feb 26, 2021

Thanks, I can reproduce. Quite obviously my work on adding this option was only partial. PR coming up.

@bagder bagder self-assigned this Feb 26, 2021
bagder added a commit that referenced this issue Feb 26, 2021
The --create-file-mode code logic accepted the value but never actually
passed it on to libcurl!

Follow-up to a7696c7 (shipped in 7.75.0)
Reported-by: Johannes Lesr
Fixes #6657
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Thanks, al lot! I copied the additional lines of tool_operate.c into my copy of 7.75.0, recompiled and it works!

@bagder bagder closed this as completed in 40f3c18 Feb 26, 2021
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2 participants