Systems

vipaddress

IPv4 addresses and networks, parsed, checked and compared.

Released v1.0.0 · 2026-09-28

Import

use "stdlib/ipaddress.ven"

IPv4 address and network handling in pure Venutian: parsing and validating dotted decimal addresses and comparing them against a fixed set of reserved ranges, using plain arithmetic on four small numbers.

vipaddress.ven

print ipv4_is_valid("192.168.1.256")

Reference (10 functions)

ipv4_is_valid
ipv4_octets
ipv4_to_integer
ipv4_from_integer
ipv4_is_private
ipv4_is_loopback
ipv4_is_multicast
ipv4_network_address
ipv4_broadcast_address
ipv4_in_network

API reference

`ipv4_is_valid(text)`

ipv4_is_valid("192.168.1.256")

`ipv4_octets(text)`

ipv4_octets("192.168.1.10")

`ipv4_to_integer(text)`

ipv4_to_integer("192.168.1.10")

`ipv4_from_integer(value)`

ipv4_from_integer(3232235786)

`ipv4_is_private(text)`

Tests whether text falls in a common private-use or link-local range.

ipv4_is_private("10.1.2.3")

`ipv4_is_loopback(text)`

Tests whether text is a loopback address.

ipv4_is_loopback("127.0.0.1")

`ipv4_is_multicast(text)`

Tests whether text is a multicast address.

ipv4_is_multicast("224.0.0.1")

`ipv4_network_address(cidr)`

Gives back the network address of CIDR network cidr.

ipv4_network_address("192.168.1.130/24")

`ipv4_broadcast_address(cidr)`

Gives back the broadcast address of CIDR network cidr.

ipv4_broadcast_address("192.168.1.0/24")

`ipv4_in_network(address, cidr)`

Tests whether address falls inside CIDR network cidr.

ipv4_in_network("192.168.2.42", "192.168.1.0/24")

API reference

Get notified when vipaddress changes