dotted-to-ipaddr

Arguments: dotted &key errorp

If dotted is a string like "192.132.95.84" (or one of the extensions to this format), this function converts the string to an unsigned 32-bit IP address. If there are any invalid characters in the string then an error will be signaled unless the value of errorp keyword is nil, in which case nil is returned.

dotted-to-ipaddr supports IPv6 "colon hex" address notation, including the %scopeid extension. The scope id can be an interface number or interface name. dotted-to-ipaddr supports IPv4-mapped IPv6 address notation (::ffff:w.x.y.z).

IPv6 colon hex notation examples:

"2001:5c0:0:2::24"              ;; 6bone.net
"fe80::209:5bff:fe8e:61c1"      ;; a link-local address
"fe80::209:5bff:fe8e:61c1%eth0" ;; a link-local address with scope-id
"fe80::209:5bff:fe8e:61c1%2"    ;; a link-local address with numeric scope-id
"::"                            ;; unspecific/wildcard address
"::1"                           ;; loopback
"::ffff:192.168.0.1"            ;; IPv4-mapped IPv6 address

See also get-ip-interfaces.

See socket.htm for general information on sockets in Allegro CL.

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This page was not revised from the 10.0 page.
Created 2019.8.20.