Hi!
It seems that the StrToNetAddr6 function is not implemented yet
(http://svn.freepascal.org/svn/fpc/trunk/rtl/inc/sockets.inc). I wrote
an implementation (attached as file including some testcases). I hope
you can use it for the Sockets unit.
Bye
Hansi
Program IP6;
Function StrToNetAddr6(IP : String) : TIn6_addr;
Var Part : String;
IPv6 : TIn6_addr;
P,J : Integer;
W : Word;
Index : Integer;
ZeroAt : Integer;
Begin
FillChar(IPv6,SizeOf(IPv6),0);
{ Every 16-bit block is converted at its own and stored into Result. When }
{ the '::' zero-spacer is found, its location is stored. Afterwards the }
{ address is shifted and zero-filled. }
Index := 0; ZeroAt := -1;
J := 0;
P := Pos(':',IP);
While (P > 0) and (Length(IP) > 0) and (Index < 8) do
Begin
Part := '$'+Copy(IP,1,P-1);
Delete(IP,1,P);
if Length(Part) > 1 then { is there a digit after the '$'? }
Val(Part,W,J)
else W := 0;
IPv6.u6_addr16[Index] := HtoNS(W);
if J <> 0 then
Begin
FillChar(IPv6,SizeOf(IPv6),0);
Exit;
End;
if IP[1] = ':' then
Begin
ZeroAt := Index;
Delete(IP,1,1);
End;
Inc(Index);
P := Pos(':',IP); if P = 0 then P := Length(IP)+1;
End;
{ address a:b:c::f:g:h }
{ Result now a : b : c : f : g : h : 0 : 0, ZeroAt = 2, Index = 6 }
{ Result after a : b : c : 0 : 0 : f : g : h }
if ZeroAt >= 0 then
Begin
Move(IPv6.u6_addr16[ZeroAt+1],IPv6.u6_addr16[(8-Index)+ZeroAt+1],2*(Index-ZeroAt-1));
FillChar(IPv6.u6_addr16[ZeroAt+1],2*(8-Index),0);
End;
Result := IPv6;
End;
Begin
StrToNetAddr6('1:2:3:4:5:6:7:8');
StrToNetAddr6('1:2:3::7:8');
StrToNetAddr6('1:2:3:4:5:6::');
StrToNetAddr6('::4:5:6:7:8');
StrToNetAddr6('::7:8');
StrToNetAddr6('1:2::');
StrToNetAddr6('::8');
StrToNetAddr6('::');
End;
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