pcap_free_datalinks(3) on FreeBSD
The text 10880706a912, as FreeBSD 16.0-CURRENT (2026-10-27), FreeBSD 15.1-RELEASE, FreeBSD 15.0-RELEASE, FreeBSD 14.5-RELEASE, FreeBSD 14.4-RELEASE, FreeBSD 14.3-RELEASE, FreeBSD 14.2-RELEASE, FreeBSD 14.1-RELEASE, FreeBSD 14.0-RELEASE, FreeBSD 13.5-RELEASE shipped it. The page shows this text now.
get a list of link-layer header types supported by a capture device, and free that list