[Toybox] Working on a [currently lame] downloader

[Rob Landley]

On 07/14/2015 02:25 AM, Isaac Dunham wrote:
> On Tue, Jul 14, 2015 at 12:21:28AM -0500, Rob Landley wrote:
>> On 07/13/2015 01:18 AM, Isaac Dunham wrote:
>>> Hello,
>>> I've been working on an HTTP(S) downloader (what wget does, but currently
>>> completely incompatible with everything) for toybox.
>>> Currently it works to some degree, so I thought I'd mention that it's
>>> in progress, ask for a general idea of what's desired, and give people
>>> an idea of how completely lame it is right now and how I'm doing it.
>>>
>>> I presume that the agenda for toybox is implementing some subset of wget
>>> in a compatible manner; is "what busybox wget supports + SSL" a rough
>>> approximation of the desired functionality?
>>
>> Yup.
>>
>>> I mentioned that it's HTTP(S); it fetches files over SSL without
>>> implementing SSL. I cheated on networking: it calls netcat or 
>>> openssl s_client -quiet -connect.
>>
>> Huh, I didn't know about that. Cool.
> 
> I actually found out about that from the busybox popmaildir help.
> 
>>> It uses an approach roughly similar to xpopen_both(), except that
>>> it uses socketpair() instead of pipe(); it should be possible to switch
>>> to xpopen_both(), which would probably fix a few of the bugs.
>>> (I'd not realized that there was an xpopen_both until just now.)
>>> This strategy is probably the main part that will actually be useful.
>>
>> Ok. (I note there was no patch attached to this...)
>  
> Yes, I figured the code as it stands is close to useless; it's more
> of a proof-of-concept.

So should I wait for a patch form you, or just start poking a this
myself? (The lack of a strategy for https was the blocker, the fact
openssl has a builtin stunnel makes life much easier...)

Rob

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