Re: [lwip-devel] Feature request: make socket errors public on a per socket basis

[address@hidden]

RAc wrote:
> the err member variable stored in struct lwip_sock should be accessible for
> evaluation by applications.

It is: call getsockopt(s, SOL_SOCKET, SO_ERROR, ...) to get and clear it 
at the same time.

> The errno mechanism is useless because the error
> code is not accessible on a per socket basis.

That doesn't make it useless. You can even override set_errno() to get a 
thread-specific errno.

> I suggest adding the following to sockets.c:
>
> int lwip_getsockerr(int socket)
> {
>      // add some sanity checks here
>      return (get_socket(socket)->err);
> }

Our socket API is meant to be an implementation of the standards. Being 
like that, you should use the method described above.


Simon