#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/mman.h>

#define MAX_FILE_SIZE 65535

int main ()
{
    int fd = open("~/input.txt",O_RDONLY,0);
    void *bytes;
    void *byteptr;
    int i = 0;

    if (fp == -1)
    {
        printf("File not found!\n");
        exit(EXIT_FAILURE);
    }

    bytes = mmap(NULL,MAX_FILE_SIZE,PROT_READ,MAP_PRIVATE,fd,0);

    while ((char)*byteptr != EOF)
    {
        char *line = malloc(256*sizeof(char));
        char *lineptr = line;
        int line_size = 0;
        while (*lineptr++ = (char) *byteptr++ != '\n' && (char) *byteptr != EOF)
            line_size++;
        *lineptr = '\0';
        printf("Line size: %s\nLine: %s\n",line_size,line);
        i++;
    free(line);
    }

    munmap(bytes, MAX_FILE_SIZE);
    close(fd);
    printf("Total lines: %i\n", i);
}