Functions
	cidr2mask (netmask)
	Converts CIDR notation into IPv4 decimal netmask. More...

	get_ipv4_broadcast (address, netmask)
	Computes the broadcast address of an IPv4 subnet. More...

	get_ipv4_network (address, netmask)
	Computes the network address of an IPv4 subnet. More...

	is_fqdn (fqdn)
	Tests a FQDN. More...

	is_ipv4 (address)
	Tests an IPv4 address. More...

	is_ipv4_cidr (netmask)
	Tests an IPv4 CIDR netmask. More...

	is_ipv4_netmask (netmask)
	Tests if an IPv4 decimal netmask is valid. More...

	is_ipv4_subnet (subnet)
	Tests an IPv4 subnet. More...

	mask2cidr (netmask)
	Converts IPv4 decimal netmask notation into CIDR. More...

Detailed Description

Function Documentation

cidr2mask ( netmask )

Converts CIDR notation into IPv4 decimal netmask.

Parameters

netmask CIDR to convert.

Return values

0	if the input parameters are valid.
1	in others cases.

Returns: Decimal notation of the given CIDR.

get_ipv4_broadcast	(	address	,
		netmask
	)

Computes the broadcast address of an IPv4 subnet.

Parameters

address	IPv4 address.
netmask	IPv4 netmask.

Return values

0	if the input parameters are valid.
1	in others cases.

Returns: Broadcast address.

get_ipv4_network	(	address	,
		netmask
	)

Computes the network address of an IPv4 subnet.

Parameters

address	IPv4 address.
netmask	IPv4 netmask.

Return values

0	if the input parameters are valid.
1	in others cases.

Returns: Network address.

is_fqdn ( fqdn )

Tests a FQDN.

Parameters

fqdn	FQDN to test.

Return values

0	if the FQDN is valid.
1	in others cases.

is_ipv4 ( address )

Tests an IPv4 address.

Parameters

address Address to test.

Return values

0	if the address is an IPv4.
1	in others cases.

is_ipv4_cidr ( netmask )

Tests an IPv4 CIDR netmask.

Parameters

netmask CIDR netmask to test.

Return values

0	if the IPv4 CIDR netmask is valid.
1	in others cases.

is_ipv4_netmask ( netmask )

Tests if an IPv4 decimal netmask is valid.

Parameters

netmask IPv4 decimal netmask to test.

Return values

0	if the IPv4 decimal netmask is valid.
1	in others cases.

is_ipv4_subnet ( subnet )

Tests an IPv4 subnet.

Parameters

subnet Subnet to test with /CIDR.

Return values

0	if the IPv4 subnet is valid.
1	in others cases.

mask2cidr ( netmask )

Converts IPv4 decimal netmask notation into CIDR.

Parameters

netmask Decimal netmask to convert.

Return values

0	if the input parameters are valid.
1	in others cases.

Returns: CIDR notation of the given decimal netmask.

Functions

Detailed Description

Function Documentation