Thank you for your input so far. All the alternatives seem to work-around the
issue but not fulfill our needs.
We have debugged a little using `gdb`. We noticed that the value of
`msg->rcv->bind_address->address_str` is correct before calling `do_action`.
Afterwards, it is wrong.
Before:
```
s = "172.20.21.3"
len = 11
```
After:
```
s = "217.116.120.247"
len = 11 (sic!)
```
We took a closer look (step by step) and the problem seems to be using
`ip_addr2a`. It returns a pointer to a local static `char[]`. This is assigned
to the original struct of `address_str` inside of `parsing_hepv3_message`.
Later, when `ip_addr2a` is called again for xlog, then the same address is used
again and hence the value of `address_str.s` is overwriten.
A quick look at the git history for the functions did not show any relevant
changes to my untrained eyes.
As the jump from 5.1/5.4 (debian jessie) to 5.5/5.8 (debian bookworm) is kind
of huge, maybe this is related to changes in the compiler?
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