commit efeee76996a2266ef977b4d0f2a15014ca5353df
author Roman Arutyunyan <arut@nginx.com> Thu Feb 22 13:16:21 2018 +0300
committer Roman Arutyunyan <arut@nginx.com> Thu Feb 22 13:16:21 2018 +0300
tree 477ecc1e77e6f0d4bd6155ee55c0e8ef2c0ee146
parent 0827ad643043eeefebc7034b44ab349625fe23c6

Generate error for unsupported IPv6 transparent proxy.

On some platforms (for example, Linux with glibc 2.12-2.25) IPv4 transparent
proxying is available, but IPv6 transparent proxying is not.  The entire feature
is enabled in this case and NGX_HAVE_TRANSPARENT_PROXY macro is set to 1.
Previously, an attempt to enable transparency for an IPv6 socket was silently
ignored in this case and was usually followed by a bind(2) EADDRNOTAVAIL error
(ticket #1487).  Now the error is generated for unavailable IPv6 transparent
proxy.