USE_FILE_CMD: seccomp Bad system call

[mc-butler]

Important

This issue was migrated from Trac:

Origin	https://midnight-commander.org/ticket/4219
Reporter	anton_kg (anton.bugs@….com)

Hi, I'm getting and error message when trying to "enter" into zip archive.
The error is the following:
file -L -z xxx.zip
xxx.zip: Bad system call

The call is here:
https://github.com/MidnightCommander/mc/blob/master/src/filemanager/ext.c#L75
"file -z"

A quick workaround is to add "-S" option:

-S, --no-sandbox

On systems where libseccomp (https://github.com/seccomp/libseccomp) is available, the -S flag
disables sandboxing which is enabled by default. This option is needed for file to execute ex‐
ternal decompressing programs, i.e. when the -z flag is specified and the built-in decompressors
are not available. On systems where sandboxing is not available, this option has no effect.

You might know a better solution

[mc-butler]

Changed by andrew_b (@aborodin) on Mar 18, 2021 at 5:42 UTC (comment 1)

-S is tested and used if available:
https://github.com/MidnightCommander/mc/blob/master/configure.ac#L159

[1ed638d]

Please show your config.log and config.h.

[mc-butler]

Changed by andrew_b (@aborodin) on Mar 28, 2021 at 13:01 UTC (comment 2)

ping

[mc-butler]

Changed by anton_kg (anton.bugs@….com) on Apr 1, 2021 at 1:42 UTC (comment 3)

sorry, I did not receive a notification about your comment. It seems you have fixed it, see ticket #4180 too.

Please close the ticket (this ticketing system is really confusing, looks like a software from 90x).

[mc-butler]

Changed by andrew_b (@aborodin) on Apr 1, 2021 at 5:34 UTC (comment 4)

• Version changed from master to 4.8.25
• Status changed from new to closed
• Resolution set to invalid
• Milestone Future Releases deleted