World: r3wp

I need to construct what is called a "triplet".  The triplet in greylisting 
parlance is a unique set of three facts about an email.
These are IP-address+smtp envelope from+smtp envelope to

The idea is that you construct a database of triplets from smtp clients. 
 If you have never seen such a triplet before, you send a smtp delay 
back to the client.  Most well constructed MTA's honor the delay 
and try again.  You set a block period .. from 10 seconds to 1 hour 
during which you do not accept any mail from that triplet.  Spamming 
engines generally ignore this delay, and just give up.  It's too 
expensive for them to log such delays and retry again.

If you have seen mail from such a triplet before, you then allow 
that mail to go thru without any delays.

In my testing, I found that my ISP sent me three consecutive emails 
to my smtp server using three different ip addresses all within the 
same subnet.  So, this meant that all three emails were subjected 
to a delay.

So, I constructed the triplet without the last set of digits so that 
it will treat all email from the same subnet as orginating from the 
same address.

Shouldn't parse and checksum be able to work directly on files? The 
only current option is to bring the files to memory either in chunks 
or completely, which can be very expensive in memory resources.

checksum more than parse, because with parse there are (not easy) 
workarounds, not with checksum

Romano. Why not parse, because of skip not working?

Isn't skip working now in the new alphas ?

I believe so.  But I havent tested this.

useful for both, but checksum has not workaround while some workaround 
can be found for parse

like inserting data at tail of parsed string?

I guess you have to access to the whole file in memory to calculate 
md5s ...

need some other checksum that can be calculated by loading parts 
of a file at a time.

Vincent: almost, it is not easy: you must 1) read a chunk of data, 
parse it 2) when parse stop remember the position where it stops 
3) delete parsed data 4) read a ne chunk of the file 5) append it 
to the old data 6) restart parse from the right rule (this is the 
hardest part)

Why you think it will be difficult for parse to work natively on 
files?

After all a file is just a binary! series

No Jaimie, i wanted only say: "there are NOT workaround for checksum 
 - there are workarounds for parse"

Ok. Then. Can we put feature requests in RAMBO?

Romano: thanks, I will try it - I have a version of rebzip decompressing 
a file while it's downloaded, but the code isn't pretty (two nearly 
same funcs.)

Is there a way to get the name, file, or line number of a function's 
caller?

no

the maillist archives will have some very good discussions on the 
subject

ok, thanks

How does one lookup MX records ?

but it boils down to the fact that code is data, i.e. these function 
calling can emitted from functions which are constructed on the fly, 
so there is no home to phone to.

http://www.webmaster-toolkit.com/mx-record-lookup.shtml

So, there is no nslookup utility for rebol ?

must be http://www.compkarori.com/soap/index.shtml

you lost me ...

print read dns://www.coolnamehere.com/

or is that not what you were thinking of?

hmm.

that is what I was looking for

I want to find the mail server for a given email address...

so I can implement outgoing smtp mail ...

finger? whois?

I'm behind a firewall, so I don't know which (if either)

read join dns:// mailhost

but how do you know the mailhost ?

from the part agrer the @ in the email address I wouls think

after

nope ..

I have an email ... [gchiu-:-compkarori-:-com] .. 
How would you get the MX record for that?

... trying to find something useful right now :-)

this is the answer : 203.79.110.37

because I know it :)

leave me a message here if you find anything :)

Will do :-)

http://www.rebol.org/cgi-bin/cgiwrap/rebol/view-script.r?script=dig.r
maybe?

Dig.r does appear to support MX...

ahh... I looked for digger but not dig

>> res: read dig://203.96.152.4/MX/www.compkarori.com
connecting to: 203.96.152.4
>> print res/to-str
;; REQUEST: MX(15) for www.compkarori.com

;; id: 52715 AA: 0.0 RD: 1.0 RA: 1.0 ANSWER(s): 0 AUTHORITY(s): 1 
ADDITIONAL(s): 0

;; ANSWER(s):

;; AUTHORITY(s)

compkarori.com. 531 SOA ns1.webxess.net.  postmaster.webxess.net. 
 2005030501  10800  3600  1209600  600

;; ADDITIONAL(s)

Doesn't give me the correct answer :(