IPFROMINT Function

Computes a four-octet internet protocol (IP) address from a 32-bit integer input.

Source value must be a valid integer within the range specified by the formula below. A valid IPv4 address is in the following format:

aaa.bbb.ccc.ddd

NOTE: IPv6 addresses are not supported.

The formula used to compute the integer equivalent of an IP address is the following:

(aaa * 2563) + (bbb * 2562) + (ccc * 256) + (ddd)

So, the formula to compute this IP address is the following:

Inputaaabbbcccddd
X

aaa = floor(Input / (256 3 ))

remainderA = Input - aaa

bbb = floor(remainderA / (256 2 ))

remainderB = remainderA - bbb

ccc = floor(remainderB / 256)

remainderC = remainderB - ccc

ddd = remainderC

Output value:

Output = aaa + '.' + bbb + '.' + ccc + '.' + ddd

Basic Usage

Numeric literal example:

derive type:single value: IPFROMINT('16909060' ) as:'ip_addr'

Output: Generates a column containing the IP address 1.2.3.4.

Column reference example:

derive type:single value: IPFROMINT(IpInt) as: 'ip_addr'

Output: Generates the new ip_addr column containing the values of the IpInt column converted to an IP address value.

Syntax

derive type:single value: IPFROMINT(column_int)

ArgumentRequired?Data TypeDescription
column_intYstring or integerName of column or integer literal that is to be converted to an IP address value

For more information on syntax standards, see Language Documentation Syntax Notes.

column_int

Name of the column or integer literal whose values are used to compute the equivalent IP address value.

  • Missing input values generate missing results.
  • Multiple columns and wildcards are not supported.

Usage Notes:

Required?Data TypeExample Value
YesInteger literal or column reference16909060

Examples

Example - Convert IP addresses to integers

This examples illustrates how you can convert IP addresses to numeric values for purposes of comparison and sorting. This example illustrates the following functions:

  • IPTOINT - converts an IP address to an integer value according to a formula. See IPTOINT Function.
  • IPFROMINT - converts an integer value back to an IP address according to formula. See IPFROMINT Function.

Source:

Your dataset includes the following values for IP addresses:

IpAddr
192.0.0.1
10.10.10.10
1.2.3.4
1.2.3
http://12.13.14.15
https://16.17.18.19

Transform:

When the above data is imported, the application initially types the column as URL values, due to the presence of the http:// and https:// protocol identifiers. Select the IP Address data type for the column. The last three values are listed as mismatched values. You can fix the issues with the last two entries by applying the following transform, which matches on both http:// and https:// strings:

replace col:IpAddr with:'' on:`http%?://`

NOTE: The %? Cloud Dataprep pattern matches zero or one time on any character, which enables the matching on both variants of the protocol identifier.

Now, only the 1.2.3 value is mismatched. Perhaps you know that there is a missing zero at the end of it. To add it back, you can do the following:

replace col: IpAddr on: `1.2.3{end}` with: '1.2.3.0' global: true

All values in the column should be valid for the IP Address data type. To convert these values to their integer equivalents:

derive type:single value:IPTOINT(IpAddr) as:'ip_as_int'

You can now manipulate the data based on this numeric key. To convert the integer values back to IP addresses for checking purposes, use the following:

derive type:single value:IPFROMINT(ip_as_int) as:'ip_check'

Results:

Xip_as_intip_check
192.0.0.13221225473192.0.0.1
10.10.10.1016843009010.10.10.10
1.2.3.4169090601.2.3.4
1.2.3.0169090561.2.3.0
12.13.14.1520218215912.13.14.15
16.17.18.1926955419516.17.18.19

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