Unrelated: the code is equivalent to read(fd, buf, RECORD_SIZE) that may read less than RECORD_SIZE. The function should read in a loop, to fulfill its contrac

Unrelated: the code is equivalent to read(fd, buf, RECORD_SIZE) that may read less than RECORD_SIZE. The function should read in a loop, to fulfill its contract (read a record). #include <unistd.h> ssize_t read_record(int fd, void* buf, size_t record_size, size_t* written) { for (*written = 0; *written < record_size; ) { ssize_t n = read(fd, (char*)buf + *written, record_size - *written); if (n < 1) return n; /* error or EOF */ *written += n; } return *written; }