randomize_buffer
randomize_buffer(data_map, page_size);
randomize_buffer(seq_nr, sizeof(*seq_nr));
randomize_buffer(buf, *key_len);
randomize_buffer(&packet.icmph.un.frag.mtu,
randomize_buffer(&packet.icmph.un.frag.mtu,
randomize_buffer(key->password, key->len);
extern void randomize_buffer(void *buf, size_t buflen);
randomize_buffer(seq_nr, sizeof(*seq_nr));
randomize_buffer(buf, buf_sz);