Are simple C file operation functions like getc, putc and seek available in the Linux kernel?

Question

I am going to write a Lexical that is going to be part of a kernel module in which I will parse a file and return tokens. For that, I may need to use functions like fopen, getc,putc,fseek etc which obviously are user space functions. I have searched for alternatives to these functions in kernel space and I found functions like open, filp_open, sys_open etc which I guess would be OK for me. But what I want to know is whether functions like getc, putc, seek etc (which can be very handy in file operations), are available in kernel space?

Answer 1

Don't.

Reading files, and especially complex configuration files, is not something which should be done from the kernel.

There's a lot of information about why this is a bad idea. The KernelNewbies FAQ is a good start.

Really, really don't do this. I integrate a lot of vendor (kernel) code, and this is one of the mistakes which keeps coming up and biting us. Learn to do things the right way from the start.