hostnameIsIpAddress

fnbool hostnameIsIpAddress(string hostname)

Tests if hostname is the string form of an IPv4 or IPv6 address. (Eg, "192.168.0.1".)

Since 2.66, IPv6 addresses with a zone-id are accepted (RFC6874).

Parameters

hostnamea hostname (or IP address in string form)

Returns

true if hostname is an IP address