include stdlib include stdio include unistd include sys types include

#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

int main(int argc, char ** argv)
{
        unsigned long blocksize;
        char *buffer;
        int file;
        int i;


        if (argc != 3) {
                printf("%s: <filename> <block size>\n", argv[0]);
                exit(1);
        }

        blocksize = atol(argv[2]);

        file = open(argv[1], O_RDONLY);
        if (file < 0) {
                perror("Failed to open file for reading");
                exit(1);
        }

        buffer = malloc(blocksize);

        do {
                i = read(file, buffer, blocksize);
        } while (i > 0);

        return 0;

}