#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdio.h>

typedef struct basic_file basic_FILE;

struct basic_file{
        int fd;
};

basic_FILE *basic_fopen(char *filename){
        int fd = open(filename, O_RDONLY);
        basic_FILE *f = malloc(sizeof(basic_FILE));
        f->fd = fd;
        return f;
}

int basic_fgetc(basic_FILE *f){
        int c;
        read(f->fd,&c, 1);
        return c;
}

int main( int argc, char *argv[]){

        basic_FILE *f = basic_fopen(argv[1]);
        int c = basic_fgetc(f);
        printf("%c",c);
        c = basic_fgetc(f);       
        printf("%c",c);

        close(f->fd);
        return 0;
}