Citeren Kris Deugau <kdeu...@vianet.ca>:
Arjen de Korte via clamav-users wrote:
Citeren Paul Kosinski via clamav-users <clamav-users@lists.clamav.net>:
However, applying clamscan to this file (which was slightly renamed by
my download script to be more readable) results in the following output:
clamscan --alert-exceeds-max=yes --max-scantime=999
--max-scansize=4090M --max-filesize=4090M --max-files=30000
--max-recursion=30 --pcre-match-limit=999999999
--pcre-max-filesize=999999999 firefox-68.6.1-esr-64.tar.bz2
Before writing this whole rant, you have not considered checking
which of the options might have triggered this? You've reduced the
--max-scantime from the default 120 seconds to under 1 second and
still wonder why this breaks? Really?
That option seems to be missing from the man page entirely:
$ dpkg -l clamav
ii clamav 0.102.1+dfsg-0+deb10u2 amd64 [...]
$ zgrep scantime /usr/share/man/man1/clamscan.1.gz
$
and does not specify units in the --help text:
$ clamscan --help
[...]
--max-scantime=#n Scan time longer than this
will be skipped and assumed clean
[...]
Absent any documentation, I would reasonably assume this to be in
seconds, not milliseconds.
I have no idea if you're wrong about this being the cause, but
without diving into the source, Paul's use of that option looks
entirely reasonable to me.
If one is overriding a default value by providing it on the
commandline, you should know what you're doing. Guessing is never a
good idea, especially if (like here) the documentation is lacking. It
was noted in the list of notable changes in 0.102.0 (see
https://blog.clamav.net/2019/10/clamav-01020-has-been-released.html)
which Paul must have read, otherwise he would not have known of the
existence of this parameter.
-kgd
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