Thanks a lot for all your inputs.

Further during the test I tried to scan a ".mp3" file of size 5.04MB. The
returned log mentions the number of Scanned files as 1, but when I see the
Data Scanned - it is 0.00 MB. Does ClamAV support scanning MP3 files? Has
anyone tried scanning MP3 files?

{'/tmp/bucket-file-upload/2copy.mp3': 'OK', 'Known viruses': '8931107',
'Engine version': '0.102.4', 'Scanned directories': '0', 'Scanned files':
'1', 'Infected files': '0', 'Data scanned': '0.00 MB', 'Data read': '5.04
MB (ratio 0.00:1)', 'Time': '22.727 sec (0 m 22 s)'}

I am using "clamscan" inside a Lambda function to scan the file which is
uploaded to an AWS S3 bucket.

regards
Ankur

On Wed, Nov 4, 2020 at 4:51 AM Mark Fortescue via clamav-users <
clamav-users@lists.clamav.net> wrote:

> Hi all,
>
> I would call this a bug. Scanning 1 byte is the same as scanning 1 block.
>
> When storing things in blocks is is always important to round up or you
> get a false impression of reality.
>
> You can't store 100 bytes in 0 disk sectors of 128 bytes. It is always 1
> disk sector.
>
> Can you not just round up by adding (BlockSize - 1) bytes when setting
> the block variables ?
>
> Regards
>         Mark.
>
> On 03/11/2020 16:07, Paul Kosinski via clamav-users wrote:
> > "This is a display problem, not a storage problem."
> >
> > I disagree. When the counts in info.blocks and info.rblocks are counts
> > of 16kb *blocks*, keeping precise track of the reading and scanning of
> > small files is impossible, no matter how clever the display code is.
> >
> >
> >
> > On Tue, 3 Nov 2020 17:44:18 +1100
> > "Gary R. Schmidt" <grschm...@acm.org> wrote:
> >
> >> On 03/11/2020 16:00, Paul Kosinski via clamav-users wrote:
> >>> "(don't you love C?)"
> >>>
> >>> I have never understood why the originators of C didn't give integers
> >>> explicit widths in bits: their scheme made C code often non-portable.
> >>>
> >> Because C is intended to be very, very close to the machine
> >> architecture, only a step or tow above assembler, or doing the
> >> bit-twiddling by hand.
> >>
> >>> When I wrote code in the mid 1990s for the DEC Alpha, ints were 32 bits
> >>> while longs were 64 (unlike "standard" C). This made Alpha C code not
> >>> portable to lesser CPUs. On the other hand, when I wrote C on DOS for
> >>> the IBM PC in the late 1980s, ints were only 8 bits! It took some time
> >>> to figure out why my C-compliant code failed so badly. In spite of all
> >>> that, having started programming before C was invented, I can safely
> >>> say that C is better than its predecessors for software like ClamAV.
> >>>
> >> Uh, not a good example, I've written C code that is still in use on
> >> everything from 80286s (yes, Virginia, there are people who keep them
> >> alive, not just because they're cheap, sometimes just because they
> >> *can*) to DEC Alphas and Power and SPARC64 and PA-RISC, it's just a
> >> matter of knowing what you are doing, and sticking to it...
> >>
> >>> P.S. Good code these days tends to use typedefs defining things like
> >>> int32, uint64 etc. A shame the original ClamAV coders didn't do that.
> >>>
> >> And none of this has *anything* to do with the original problem - seeing
> >> 0 when the value is 0.0000000001, or so.
> >>
> >> This is a display problem, not a storage problem.  You could declare
> >> something as PIC(9999999.99999999999999) and you will still only see 0
> >> if you told it to display two decimal places.
> >>
> >>      Cheers,
> >>              Gary    B-)
> >
> >
> > _______________________________________________
> >
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> > clamav-users@lists.clamav.net
> > https://lists.clamav.net/mailman/listinfo/clamav-users
> >
> >
> > Help us build a comprehensive ClamAV guide:
> > https://github.com/vrtadmin/clamav-faq
> >
> > http://www.clamav.net/contact.html#ml
> >
>
> _______________________________________________
>
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>
>
> Help us build a comprehensive ClamAV guide:
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>
> http://www.clamav.net/contact.html#ml
>


-- 
regards
Ankur
+61481141085
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