undefined symbol "c.sin_family"

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Havok

Joined: 29 Oct 2011
Posts: 7

Havok 02 Nov 2011, 03:45

Hello everyone,

I have a bit of a problem that I hope I can get help with. I'm working on a HTTP server and I'm having a problem getting it to compile while trying not to use any include files. Here is a part of my code I am having trouble with:

Code:

format pe gui

push a 
push 0202h
call [WSAStartup]
push 0
push 0
push 0
push 6
push 1
push 2
call [WSASocket]
mov [b],eax
mov [c.sin_family],2

a db WSADATA
b dd 0
c dd sockaddr_in

Where I am having the problem is at "mov [c.sin_family],2". I get an error that says "undefined symbol "c.sin_family"". But I thought I had already defined it with "c dd sockaddr_in"? Any help would be appreciated.

02 Nov 2011, 03:45

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20299
Location: In your JS exploiting you and your system

revolution 02 Nov 2011, 04:02

You will need to define the structure of 'c'.

Code:

struc sockaddr_in {
  .sin_family dd ?
  .handle dd ?
  ;...
}

c sockaddr_in
;...

02 Nov 2011, 04:02

typedef

Joined: 25 Jul 2010
Posts: 2909
Location: 0x77760000

typedef 02 Nov 2011, 04:23

Why not use WinHTTP API. It has server functionality too.

http://msdn.microsoft.com/en-us/library/windows/desktop/aa384273(v=vs.85).aspx

02 Nov 2011, 04:23

Havok

Joined: 29 Oct 2011
Posts: 7

Havok 02 Nov 2011, 05:24

Thanks revolution! I'll try it.

typdef,

Thanks for that. I just wanted to see if I could do this with Winsock 2. I guess I'm a glutton for punishment.

02 Nov 2011, 05:24

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