Program that read file and send it to parent process with pipe

Question

I need to write a program that create pipe send filename from command line to child process. In child read that file and send it back using pipe. Parent process should print

Answer 1

This code does not compile:

  while (fgets(buff, sizeof(buff), file) != NULL) {
        write(pipefd[1], "Error reading file", 18);
     } else {
        write(pipefd[1], buff, sizeof(buff));
     }

You can't have an else clause there.