There is a new data format called "Sereal". You can produce a file with the format by this command: $ perl -MSereal::Encoder -e 'print Sereal::Encoder::encode_sereal({})' | hexdump -C 00000000 3d f3 72 6c 03 00 50 |=.rl..P| 00000007 The official documentation of the magic string is <https://github.com/Sereal/Sereal/blob/master/sereal_spec.pod#user-content-document-header-format>. Current file-5.20-2.fc22 does not support the format. Please enhance the file tool to support the Sereal format.
Created attachment 954432 [details] Example This is the output of command. It's the latest version 3 format.
Proposed upstream: http://bugs.gw.com/view.php?id=396
This is fixed in rawhide by update to file-5.24.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
$ rpm -q file file-5.31-8.fc27.x86_64 $ file sample.sereal sample.sereal: Sereal data packet (version 0, uncompressed) $ rpm -q file file-5.30-8.fc26.x86_64 $ file sample.sereal sample.sereal: Sereal data packet (version 0, uncompressed) $ rpm -q file file-5.29-7.fc25.x86_64 $ file sample.sereal sample.sereal: Sereal data packet (version 0, uncompressed)
Thank you.