On 5/5/11 6:01 AM, Jakub Zawadzki wrote:
> On Thu, May 05, 2011 at 02:01:06PM +0200, Jakub Zawadzki wrote:
>> IMHO when IPv4-mapping is used the longest address is:
>> ::ffff:255.255.255.255 (22B)
>>
>> Anyone knows inet_ntop(AF_INET6, ..) implementation which can actually use 46 bytes?
>
> Maybe some inet_ntop() implementation don't generate short addresses? (0000 instead of ::)
> so ipv4 mapped address would be: "0000:0000:0000:0000:0000:0000:255.255.255.255"
>
> I think I'll just copy inet_ntop6() from wsutil/inet_ntop.c to address_to_str.c...
RFC 2553 section 6.6 and MSDN's InetNtop documentation both specify 46
characters, but you'd think that if an implementation was smart enough
to check for v4-mapped addresses it would be smart enough to compress
zeroes.
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