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G
Gilthas
Gilthas
G
Hi there!

We're trying to fix some holes in a language filter we have on our network.

Since the IRCd does not "know" the ASCII codes for text highlighting, it simply passes them through the filter and they can be used to evade it.

Does anyone know the specific ASCII codes for all of the various graphical highlighting methods in mIRC, that are sent to the IRCd?

We've tried a sniffer and a dump, but it all apears as "normal' text.

Any help would be appreciated!

Joined: May 2003
Posts: 161
A
Vogon poet
Offline
Vogon poet
A
Joined: May 2003
Posts: 161
Bold (ctrl-B) = $chr(2)
Color (ctrl-K) = $chr(3)
Normal (ctrl-O) = $chr(15)
Reverse (ctrl-R) = $chr(22)
Underline (ctrl-U) = $chr(31)

G
Gilthas
Gilthas
G
Thanks...but that's not what we're looking for. =\

We have that list already.

The ASCII should look something like "0133," or "0166," etc.

C
codemastr
codemastr
C
Umm what he gave you is ASCII codes.

Bold is ASCII code 2
Color is ASCII code 3
etc.

G
Gilthas
Gilthas
G
None of those codes work, though, so they must not be correct.

002, bold
031, itallics
022, reverse

Nadda... frown

G
Gilthas
Gilthas
G
OK, we seem to have it under control with bold, but not underline or reverse, which is odd.

Also, it started to work when we combined our filter mode with +c...not sure what other alterations were made.

Still looking into it. Any ideas are welcome. =)

C
codemastr
codemastr
C
022 and 22 are not the same thing. When you use 022, you are talking about an octal number, 22 is decimal. In octal, 22 would be 026 for example.

G
Gilthas
Gilthas
G
I'm told it needs to be three letters/characters. 22 does not work.

I really have no idea how the IRCd looks at codes. I'm not the one programming this, I'm relaying what is said here to one of our network/server admins. =)

C
codemastr
codemastr
C
Well who ever told you an ASCII code has to be 3 digits doesn't know what he is talking about.

G
Gilthas
Gilthas
G
Quoth I:

Quote:
No it does not, but the extended code we use for IRC does.

C
codemastr
codemastr
C
Well I don't have any idea what this guy is talking about. I've been programming an IRCd for the last 3 years, those codes work perfectly for me. If they don't work for you, then talk to the people who are familiar with your particular IRCd. The codes you were given are the ASCII codes, if you want something different, then there's nothing I can do for you.

G
Gilthas
Gilthas
G
Would that IRCd be Unreal?

We use Bahamut.

C
codemastr
codemastr
C
Yes it would be Unreal. And, I'm rather familiar with Bahamut code, and it does not have anything to the effect of "ascii codes must be 3 digits." ASCII codes are NOT required to be 3 digits, as I said, if you're going to tell me they are, then you need to go and get help from whoever is telling you this, because he is the only one who can help you.

G
Gilthas
Gilthas
G
We have so many blasted modifications to the IRCd and services I can't name them all. It may be some custom bit that she coded...so I don't know. I will find out.

G
Gilthas
Gilthas
G
I haven't a clue - I mentioned she should post here, not me, but I didn't recieve a reaction.

Quote:
ASCII by itself does not have to [have three characters], but extended characters like BOLD and them typically do.


*shrugs* confused

C
codemastr
codemastr
C
Bold is NOT an extended ASCII character. Bold is ASCII code 2. Extended ASCII codes are those with codes between 128 and 255 inclusive, not ASCII code 2. This is the last I am posting on the issue, this is now pointless.

Joined: Feb 2003
Posts: 806
C
Hoopy frood
Offline
Hoopy frood
C
Joined: Feb 2003
Posts: 806
Anyway, just in case, if you're looking for the octal values: 002 (bold), 003 (colour), 017 (plain), 026 (reverse) and 037 (underline).

P
paultwang
paultwang
P
The triple digit is the octal escape code for a character. The C compiler sees "\003" as "3" in base-8.

C
codemastr
codemastr
C
No kidding, I already said that. However it is meaningless for codes 2 and 3 because they are exactly the same value in decimal and octal.


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