Cheat Engine

Stylo · Posted: Fri Aug 13, 2010 12:37 pm Post subject: setsockopt errors ?!

I'v been messing with sockets lately and wanted to control the packet's header
so i found out that i should use setsockopt for that
but i always get error 10014 ( means that it's a bad address - http://msdn.microsoft.com/en-us/library/ms740668%28v=VS.85%29.aspx )
that's my code

atom0s · Posted: Fri Aug 13, 2010 12:59 pm Post subject:

Change optval to char and cast with (char*)&optval.

Stylo · Posted: Fri Aug 13, 2010 2:09 pm Post subject:

atom0s · Posted: Fri Aug 13, 2010 2:55 pm Post subject:

IP_HDRINCL option is meant to be DWORD, sorry about that.

Try changing optval to DWORD instead.

Stylo · Posted: Fri Aug 13, 2010 4:12 pm Post subject:

justa_dude · Posted: Sun Aug 22, 2010 10:01 am Post subject:

Are you sure that you're getting error 10004 instead of 10014? 10014 would make sense, since you're passing reinterpret_cast<const char *>(optval) instead of &optval.

Cheers,
adude

Stylo · Posted: Thu Aug 26, 2010 9:13 am Post subject:

i've tested few options in that optval parameter and it wasn't helping
now i'm getting error 10004.
my other question is there another way to control the packet's header in windows > C++ or C

AhMunRa · Posted: Thu Aug 26, 2010 10:36 am Post subject:

What's your code look like now?

Stylo · Posted: Thu Aug 26, 2010 10:40 am Post subject:

AhMunRa · Posted: Thu Aug 26, 2010 11:32 am Post subject:

I saw that bit posted earlier, what is the context it is used in.

Are you looking up by domain name? Which if your DNS is doing reverse lookups, if the host you are trying to reach is configured improperly it will fail due to no reverse lookup. Or are you looking by IP.

Have a look at this, it might help to shed some light on what exactly you are trying to do.

Stylo · Posted: Thu Aug 26, 2010 11:42 am Post subject:

I'm not even trying to reach any host
i'm at the level where i create the socket and i want the socket will have the option of editing the packet's header

AhMunRa · Posted: Thu Aug 26, 2010 11:46 am Post subject:

In recent versions of Windows Microsoft has taken away alot of the ability for you to modify packets for security reasons.

http://tangentsoft.net/wskfaq/advanced.html#rawsocket

You will also be limited to what you can modify in a packets header, unless you are building the whole packet yourself.

Some suggested reading.

RFC-791 Internet Protocol
RFC-793 Transmission Control Protocol
Raw IP FAQ

This is unrelated in what you are trying to do, but what you would learn from this would greatly help you understand sockets and packets.

http://www.faqs.org/docs/Linux-mini/Divert-Sockets-mini-HOWTO.html

justa_dude · Posted: Thu Aug 26, 2010 3:36 pm Post subject:

In the code that you posted, you're still passing optval instead of the address of optval. That generates error 10014.

Stylo · Posted: Fri Aug 27, 2010 1:40 am Post subject:

AhMunRa · Posted: Fri Aug 27, 2010 12:51 pm Post subject:

I think it would help if we could see the code in it's entirety, a snippet is not enough in this case.