RE : [lwip-users] sockaddr structure

[Frédéric BERNON]

Perhaps I'm wrong, but I think you can't use in the same time ipv4 and ipv6 
with lwIP. Because, functions use the exact same name... By example, ip_route 
got two implementation (one for ipv4, one for ipv6), but there is no way to 
choose the good one at run time. If I'm right, you have to choose with which ip 
stack release you want to link at build time...

I know that Tai-hwa Liang has proposed a patch there is few weeks about ipv6, 
perhaps he can help you... 
  
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Frédéric BERNON 
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-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Jonathan Larmour
Envoyé : mardi 24 avril 2007 15:52
À : Mailing list for lwIP users
Objet : Re: [lwip-users] sockaddr structure


address@hidden wrote:
> 
> This time my
> question deals with the sockaddr structure, more concretely with the 
> sockaddr_in:
> 
> struct sockaddr_in {                (from sockets.h, where 
> lwip/ip_addr.h is included)
>   u8_t sin_len;
>   u8_t sin_family;
>   u16_t sin_port;
>   struct in_addr sin_addr;
>   char sin_zero[8];
> };
> 
> I would like to use this structure with both ipv4 and ipv6,

lwIP's ipv6 is called "very experimental" but I'm not sure it's even 
advanced enough to be called that.

Usually with IPv6, there should be an entirely separate struct sockaddr_in6 
structure. None of that stuff exists. What source files there are don't 
even particularly attempt to deal with IPv6 at all. I wouldn't try to use 
IPv6 with lwIP.

Jifl
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