Re: Easy question, how to use stdio.h

["ISLERO77@telefonica.net" <ISLERO77@telefonica.net>]

Ok, I'm just trying to understand how netfilter works, because after I would 
like to make my own match (it's an University task) 
So I'm making some changes in an existent match, ipt_multiport.c 
concretely. And now I was trying to load in a file the source and the dest 
ports of the packets. 
 
If you could tell me how can I do that (in the kernel space or in the user 
space, it's the same) 
 
Thank you very much. 
 
	Juan. 
 
  
----- Mensaje Original -----  
De: Markus Schaber <markus.schaber@student.uni-ulm.de>  
Fecha: Martes, Abril 22, 2003 7:05 pm  
Asunto: Re: Easy question, how to use stdio.h  
  
> Hallo,  
>   
> "ISLERO77@telefonica.net" <ISLERO77@telefonica.net> schrieb:  
>   
> > Maybe my question is very easy, but I'm new developing in Linux.    
> > I'm trying to use fopen, fprintf and fclose in a match, so I'm  
> > writting   #include <stdio.h>    
> > but when I compile the kernel and I do     
> > make modules    
> > the system doesn't recognize any of these functions    
> > How can I use them???    
>   
> Basically, you can't.  
>   
> As matches are kernel modules, they run in kernel space. They don't   
> havethe usual application infrastructure (as it is the kernel's   
> task to  
> provide the fundament of this infrastructure, and the libc's task to  
> provide the rest.)  
>   
> Maybe you could tell us what you want to achieve, so we can possibly  
> tell you how to do it.  
>   
>   
> Gruß,  
> Markus  
>   
> --   
> Schabi's Flohmarkt: http://schabi.de/flohmarkt/  
>   
> Der Dienstweg ist die Verbindung der Sackgasse mit dem Holzweg!  
> [DoLi in unibwm.studium]  
>