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Postings from July 2019
On 7/22/19 2:07 AM, sisyphus wrote:
> From mirrors.rit.edu <http://mirrors.rit.edu>, I can't get a valid file
> via Net::FTP for either perl-5.31.2.tar.gz or perl-5.31.1.tar.gz.
> But, using the same perl script, I do get a valid perl-5.31.1.tar.gz
> from ftp.funet.fi <http://ftp.funet.fi>.
>
Up until now ftp.funet.fi has been very reliable. But
http://mirrors.cpan.org/#fi indicates it's 7.2 days out-of-date. So
5.31.2 hasn't even arrived there.
> Here's the script I used:
>
> #######################
> use Net::FTP;
> $ftp = Net::FTP->new("ftp.funet.fi <http://ftp.funet.fi>", Debug => 1,
> Passive => 1)
> or die "Cannot connect: $@";
> $ftp->binary();
> $ftp->login("anonymous",'')
> or die "Cannot login ", $ftp->message;
> $ftp->cwd("pub/languages/perl/CPAN/src/5.0")
> or die "Cannot change working directory ", $ftp->message;
> $ftp->get("perl-5.31.1.tar.gz")
> or die "get failed ", $ftp->message;
> $ftp->quit;
> ########################
>
> If I connect instead to "mirrors.ret.edu <http://mirrors.ret.edu>" and
> cwd to "CPAN/src/5.0" I get a corrupted perl-5.31.1.tar.gz.
> Makes no difference if I switch to active mode, or if I turn off binary
> - mirrors.rit.edu <http://mirrors.rit.edu> always returns the same
> corrupted file.
> That corrupted file is actually bigger than the valid one.
> For perl-5.31.1.tar.gz, ftp.funet.fi <http://ftp.funet.fi> delivers a
> file that is 17 593 158 bytes, whereas mirrors.rit.edu
> <http://mirrors.rit.edu> delivers a file that is 17 659 694 bytes
> For perl 5.31.2.tar.gz, correct size is 17 631 507 bytes, but
> mirrors.rit.edu <http://mirrors.rit.edu> delivers a file that is
> 17 697 887 bytes.
>
> I also found that there are no problems with files from mirrors.rit.edu
> <http://mirrors.rit.edu> that were downloaded using wget.
> Nor was there a problem downloading by browsing to
> ftp://mirrors.rit.edu/CPAN/src/5.0 and clicking on the tarball link.
>
> Cheers,
> Rob
>
>
So we seem to be having a problem that is a combination of this month's
tarball and Net::FTP.
>
>
>
>
> On Mon, Jul 22, 2019 at 3:07 PM Tony Cook <tony@develop-help.com
> <mailto:tony@develop-help.com>> wrote:
>
> On Sun, Jul 21, 2019 at 09:49:04PM -0400, James E Keenan wrote:
> > >
> > > Does that sha256 match?
> > >
> > > tony@mars:~/src$ sha256sum perl-5.31.2.tar.gz
> > >
> 4047199a79bf793e1f245e20fe7eb25f3c76969a475634613b152c5969826d01
> perl-5.31.2.tar.gz
> > > tony@mars:~/src$ cat perl-5.31.2.tar.gz.sha256.txt
> > > 4047199a79bf793e1f245e20fe7eb25f3c76969a475634613b152c5969826d01
> >
> > That looks like the problem:
> >
> > #####
> > # In my FreeBSD-12 VM:
> > $ sha256 perl-5.31.2.tar.gz
> > SHA256 (perl-5.31.2.tar.gz) =
> > a26478e09f7e3c9ad78c295cb0a4781132c56c200b208ac93291474f85fa21d3
> >
> > # ftp://mirrors.rit.edu/CPAN/src/5.0/perl-5.31.2.tar.gz.sha256.txt
> >
> > 4047199a79bf793e1f245e20fe7eb25f3c76969a475634613b152c5969826d01
> > #####
> >
> > Also:
> >
> > #####
> > # In my FreeBSD-12 VM:
> > $ sha1 perl-5.31.2.tar.gz
> > SHA1 (perl-5.31.2.tar.gz) = 306fcf528e33e2985fab954ccba73cd6397717a5
> >
> > # ftp://mirrors.rit.edu/CPAN/src/5.0/perl-5.31.2.tar.gz.sha1.txt
> > 3a2e2beb54e6a44b4bb6c4bd2967ec0a0c9f5324
> > #####
> >
> > How should we proceed?
> >
>
> The sha256 mismatch isn't the "the problem" - it's just a diagnostic.
>
> > >
> > > Otherwise, since you're using FTP, do you call binary() on the
> > > Net::FTP object?
> > >
> >
> > No, I don't. But I've performed this call (inside
> Perl::Download::FTP)
> > hundreds of times with no problem -- and now dozens of times from
> within
> > this VM.
>
> Try it, I expect you've just been lucky in your choice of mirrors.
>
> If you're transferring binary files always use binary mode for FTP.
>
> You might want to check the checksums too.
>
> Tony
>
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