pcap_file(3) on FreeBSD
The text e4fd10bbd7ed, as FreeBSD 15.0-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.
get the standard I/O stream for a savefile being read