[Bug 2709] Permission Error logged at Debug

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2709

--- Comment #2 from Clay Gerrard <clay.gerrard at gmail.com> ---
You're probably right.  But please consider...

Unlike ENOENT - the permissions error is not really an expected normal
condition.  Consider when the permissions are *too* permissive:

Jun  2 16:05:44 localhost sshd[3343]: Authentication refused: bad
ownership or modes for file /home/ubuntu/.ssh/authorized_keys

Or this message when the file is a directory:

Jun  2 16:14:17 localhost sshd[3421]: User ubuntu authorized keys
/home/ubuntu/.ssh/authorized_keys is not a regular file

Where as when the user/owner is wrong (which causes an error trying to
read the file) - AFAICT there is no helpful/clarifying message printed
unless the log level is DEBUG.

Which is *fine* - but I think this EPERM is hardly something you would
expect to be any more unlikely/common than the file's mode, or it being
a non-regular file.

OTOH, if there was some more esoteric error reading the file.... well
that might be *very* interesting/noteworthy.

/me shrugs

Thanks for the response and suggested doc patch, very
helpful/responsive.  I appreciate your maintenance/service.  Thank you!

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