This module provides a variety of constants, structure manipulators
and other functions related to socket-based networking. The values
and functions provided are useful when used in conjunction with Perl
core functions such as socket(), setsockopt() and bind(). It also
provides several other support functions, mostly for dealing with
conversions of network addresses between human-readable and native
binary forms, and for hostname resolver operations.
Some constants and functions are exported by default by this module;
but for backward-compatibility any recently-added symbols are not
exported by default and must be requested explicitly. When an import
list is provided to the use Socket line, the default exports are not
automatically imported. It is therefore best practice to always to
explicitly list all the symbols required.