@ivanuschak - related to:
```
- *from = &si->su;
+ memcpy(*from, &si->su, sockaddru_len(si->su));
```
What I wanted to comment about is that the size are different between the
pointer to a structure and the structure itself. A pointer is 4 bytes on 32bit
CPU and 8 bytes on 64bit CPU. So the `&si->su` is a pointer (address), being
4/8bytes, `*from` is written with 4/8 bytes.
The change makes the `*from` to be written with `sockaddru_len(si->su)` bytes.
Is this correct in the way that `*from` has the proper reserved/allocated size?
For me it feels incorrect, the `struct sockaddr_in6` is more than 8 bytes:
- https://man7.org/linux/man-pages/man7/ipv6.7.html
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