Daniel Kahn Gillmor <d...@fifthhorseman.net> writes:

> On Wed 2019-05-22 09:18:53 -0300, David Bremner wrote:
>> Daniel Kahn Gillmor <d...@fifthhorseman.net> writes:
>>
>>> +static int
>>> +_notmuch_message_crypto_cleanup (_notmuch_message_crypto_t *msg_crypto)
>>> +{
>>> +    if (!msg_crypto)
>>> +   return 0;
>>> +    if (msg_crypto->sig_list)
>>> +   g_object_unref (msg_crypto->sig_list);
>>> +    return 0;
>>> +}
>>
>> we currently call destructors
>>
>>    - *_destroy
>>    - *_destructor (the most popular option)
>>    - *_free
>>
>> Is there a good reason to introduce a fourth option?
>
> nope.  I'm happy to stick with _destructor if you prefer it.

Sounds good.

>>
>> It might be worth a comment here to explain the interaction between
>> talloc and glib, i.e. why this is needed.
>
> OK, it'll be something like:
>
> / * This signature list needs to persist as long as the _n_m_crypto
>   * object survives. Increasing its reference counter prevents
>   * garbage-collection until after _n_m_crypto_destructor is called. */

Yep, sounds good. I only suggest it because I had to learn this stuff
the hard way.

> do you think i should move this explanation into the .c file instead of
> the header?  I think it's more important that it be visible to someone
> saying "what are these statuses?"  I could copy the text into the .c
> file as well, but then i worry about keeping it in sync.  Maybe just a
> reference is sufficient?

A reference is fine.
>
> Yes, PGP/MIME encrypted messages and signed from enigmail well-formed in
> this sense.  However, some mail transport agents (including mailman!)
> mangle them in ways that may change the well-formedness.  (see
> https://tools.ietf.org/html/draft-dkg-openpgp-pgpmime-message-mangling
> for more discussion on the topic of mangled messages; i plan to submit
> some patches to notmuch related to that work soon)
>
> My approach thus far around building the corpus of
> cryptographically-protected e-mail has been to keep the examples
> deliberately minimalist, so that they can be understood by someone
> taking them apart and inspecting by hand.
>
> If someone wants a trove of real-world messy e-mails i certainly
> wouldn't object to that (indeed, i'd be happy to help!), but i don't
> think it should be a blocker to land this series.

OK.

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