[plug] kernel programming

[Parag Nemade]

hello Peter,
           i require fopen cause i am calculating a
string value and storing it in a file for temporary
period and reading it by other file in kernel.
	   can i copy all header files from libc to kernel
include directory?
	   I am using a red hat Linux 9.0 with kernel 2.4.
Regards,
Parag.


--- Peter F Bradshaw <pfb at exadios.com> wrote:
> Hi Parag;
> 
> If you are talking about the fopen() function call
> then you are talking
> about libc - and libc is not avaliable in the
> kernel. In fact only those
> functions defined in the kernel (or a module) are
> avaliable.
> 
> Kernel programming and user mode programming are
> quite different - the
> enviroment and the implicit assumptions are
> different. Its hard to know
> why you would need to use fopen() in the kernel but
> if you really do
> then you may want to address what ever you are
> trying to do by writing a
> kernel and corresponding user mode components and
> doing the nasty stuff
> in user mode. There are a few ways to communicate -
> probably using the
> /proc file system is easiest (might be messy though
> :-).
> 
> You did not say which kernel version you are talking
> about but for 2.4
> take a look at:
> 
> http://www.linux.org.au/LDP/LDP/lkmpg/index.html
> and
> http://www.linux.org.au/LDP/LDP/lki/index.html
> 
> On Tue, 23 Mar 2004, Parag Nemade wrote:
> 
> > hello friends,
> > i want to modify kernel source code by adding my
> own C
> > files in net protocol stack but i found that some
> C
> > functions are not supported by kernel include
> > directory that is fopen is not found in any of
> header
> > files. what can i do? Also while compiling my own
> C
> > files with kernel files i got warnings that
> implicit
> > declaration of function and function declaration
> isn't
> > a prototype how can i solve it?
> > Parag.
> >
> 
> Cheers
> 
> -- 
> Peter F Bradshaw, pfb at exadios.com, ICQ 75431157
> (exadios).
> http://www.exadios.com
> PGP public key at
> http://www.exadios.com/public_key.html
> "I love truth, and the way the government still uses
> it occasionally to
>  keep us guessing.  " - Sam Kekovich.
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