getaddrinfo(3) on macOS
The text 489a1be319db, as OS X 10.11.6, OS X 10.11.5, OS X 10.11.4, OS X 10.11.3, OS X 10.11.2 shipped it.
socket address structure to host and service name
The text 489a1be319db, as OS X 10.11.6, OS X 10.11.5, OS X 10.11.4, OS X 10.11.3, OS X 10.11.2 shipped it.
socket address structure to host and service name