[fpc-pascal] Bug 37080 -- StrToHostAddr accepts all Pascal number notations

[Michael Van Canneyt]

On Sat, 16 May 2020, Michael Van Canneyt wrote:

>
>
> On Sat, 16 May 2020, Jonas Maebe wrote:
>
>> On 15/05/2020 12:39, Noel Duffy via fpc-pascal wrote:
>>> While doing some work on bug 37060, the refactoring of StrToHostAddr and
>>> StrToHostAddr6 in the sockets
>>> unit,(https://bugs.freepascal.org/view.php?id=37060), I found that
>>> StrToHostAddr is doing no validation at all on input address characters
>>> before calling the function Val, so any Pascal notation that Val
>>> accepts, such as 0x and $ for hexadecimal, % for binary, & for octal,
>>> and mathematical signs are all accepted in ipv4 octets.
>>
>> I added a note to https://bugs.freepascal.org/view.php?id=37013 about
>> the fact that this test program fails if range checking is enabled (I
>> don't know if the range error is in StrToHostAddr6 or in the test
>> program itself).
>
> I will check. 
> I never use range checking, so that could have easily escaped me.

Fixed 2 occurrences of a range check.

Michael.