[lwip-devel] [bug #51531] getsockopt/SO_ERROR not returning value stored in errno

[Joel Cunningham]

Follow-up Comment #7, bug #51531 (project lwip):

> In my opinion, we had to remove the SO_ERROR handling to meet the standards.


I agree, I'm in favor of the standard behavior :)  Before David commented, I
didn't have correct understanding of the way SO_ERROR behaved on POSIX.  errno
with TLS is working on my platforms, so I can upgrade my old applications to
use SO_ERROR correctly.

My suggestion of updating the UPGRADING file and remove LWIP_SOCKET_SET_ERRNO
was to make it clear that the previous use case is no longer available.  I
don't have an opinion about getting this use case working again since all of
my platforms have errno with TLS

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