making dir or ls command using C interrupts

[haroonob]

hello
i have to made a program which show list of folders and files using in interrupt in C language can any buddy help me

Haroon Idrees

[sicarie]

I'm sorry, I don't understand what you are trying to do? Are you attempting to create your own version of those commands? Or are you trying to do something else?

[haroonob]

I want to make simple C Program which show current directories and files like dir or ls .This should be use interrupt for getting current directory and its subdirectories and files.Help me to make this program. I Saw 21h interrupt with its service 47h and 4Eh .

Thanks

[ashitpro]

I want to make simple C Program which show current directories and files like dir or ls .This should be use interrupt for getting current directory and its subdirectories and files.Help me to make this program. I Saw 21h interrupt with its service 47h and 4Eh .

Thanks

ls command belongs to linux,
Do you really believe that it uses DOS interrupts(in linux) to get the output.?
this link will help you
http://www.frontiernet.net/~fys/filedir.htm

[haroonob]

I made a program for getting current directory but it is not working

#include <stdio.h>
#include <string.h>
#include <dir.h>
#include <dos.h>
union REGS inregs, outregs;
void main(){
inregs.h.ah = 0x47;
int86(0x21,&inregs,&outregs);
printf("%s",outregs.x.si);
}

it prints (null)Null pointer assignment