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

[David van Moolenbroek]

Follow-up Comment #1, bug #51531 (project lwip):

What you're describing is expected behavior. Once an error has made it into
'errno', ht will not be available through SO_ERROR anymore. SO_ERROR is
effectively only to be used for cases where there was no possibility to move
the error code into 'errno'. As such, your application logic will not work on
other POSIX-compliant systems either.

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