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

typedef struct basic_file basic_FILE;

struct basic_file {
    int fd;
};

//FILE *fopen(char *path, char *mode);

//ONLY CAN OPEN FILES FOR READING
basic_FILE *basic_fopen(char *path) {
    int fd = open(path, 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[]) {
    if(argc < 2){
        fprintf(stderr, "Usage %s filename\n", argv[0]);
        return 1;
    }
    basic_FILE *my_file = basic_fopen(argv[1]);
    int c = basic_fgetc(my_file);
    printf("%c\n", c);
    c = basic_fgetc(my_file);
    printf("%c\n", c);
    return 0;
}