STRING_TO_IPADDR

This function converts a STRING in IP address format into a value of the data type DWORD.

Thereby the attached string is first converted into a value of the data type STRING[32]. Finally this is converted into a value of the data type DWORD via a sub-programm of approx. 330 steps that is also used in the functions STRING_TO_IPADDR and STRING_TO_ETLANADDR.

Parameters

Input

Unnamed input (STRING)

Input data type

Output

Unnamed output (DWORD)

Conversion result

Remarks

• The analysis ends with the first non-decimal number after the 4th octet or in case of a format error.

• If the format is wrong the result is 0.

• The conversion is such that the first octet represents the lowest byte of the IP address and the fourth octet the highest byte of the ET-LAN address. The format corresponds to the standard format as used in "Standard Socket Application Interfaces", for example.

Permissible format: '[Space]Octet1.Octet2.Octet3.Octet4[Space]', e.g.: ' [192.168.206.4] '

Permissible characters Octets 1-4:

Decimal numbers "0“-"9“, maximal 3 positions, with or without leading zeros in the range 0-255

Space: All characters except for decimal numbers