[Swan-commit] Changes to ref refs/heads/main

[Andrew Cagney]

New commits:
commit cd4b4bab90b64110c80b93ffec27a563c957f56a
Author: Andrew Cagney <cagney at gnu.org>
Date:   Mon May 9 20:38:03 2022 -0400

    iface: update find_raw_ifaces[46]()
    
    - use realloc_bytes(), not free()+malloc() (no typo)
    - make raw_iface's .name variable length using overalloc
    - use ifname[IFNAMSIZ+1] to hold a NUL terminated name
    - document that linux can't use SIOCGIFCONF + struct ifconf for IPv6
    - note that BSD probably can, hmm ...

commit eb6336382130848dc1c7446702bad31e987ce656
Author: Andrew Cagney <cagney at gnu.org>
Date:   Tue May 3 11:03:58 2022 -0400

    memory: add overalloc_thing()