libemail-mime-perl: fails to handle boundary="0"

[gregoa]

We have the following bug reported to the Debian package of
Email-MIME, c.f. https://bugs.debian.org/944887

The bug report contains a patch.

It doesn't seem to be a bug in the packaging, so you may want to take
a look. Thanks!

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Email::MIME fails to handle mail with a boundary value of "0",
since Perl treats 0 as false.  This is a common type of bug in
Perl code.

Reading RFC 2046, the BNF for allowed boundary characters
allows 1-70 characters, so a single "0" is acceptable:

     boundary := 0*69<bchars> bcharsnospace
     bchars := bcharsnospace / " "
     bcharsnospace := DIGIT / ALPHA / "'" / "(" / ")" /
                      "+" / "_" / "," / "-" / "." /
                      "/" / ":" / "=" / "?"

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Thanks for considering,
gregor herrmann,
Debian Perl Group

[pali]

Patch in that Debian bug tracker is not complete, there is missing proper check on another place. I took that patch, fixed that problem, changed coding style to what is used in Email::MIME and created a pull request: #64

CC: @devmchakan

[gregoa]

On Sun, 17 Nov 2019 08:46:30 -0800, pali wrote: Patch in that Debian bug tracker is not complete, there is missing proper check on another place. I took that patch, fixed that problem, changed coding style to what is used in Email::MIME and created a pull request: #64

Thanks @pali!