111.host.patch

[David Robinson <dr...@ast.cam.ac.uk>]

 Subject: Only lookup DNS name for client at the time it is needed, and allow
          the HostNameLookups directive in Directory sections.
 Affects: Makefile.tmpl, alloc.h, alloc.c, http_config.c, http_core.h,
          http_core.c, http_log.c, http_main.c, httpd.h, mod_access.c,
          mod_cookies.c, mod_log_common.c, mod_log_config.c, util.c,
          util_script.c
 ChangeLog: Make hostname_lookups a per-directory core configuration variable.
            Replace all accesses to the connection.remote_host and remote_name
            variables to calls to get_remote_host(), which is now in
            http_core.c. Also fix prototype of table_set() and in_domain().
 Comments: Allows more control over DNS access; improves server response time.
           Decouples hostname lookup from finding the virtual host for a
           request. This patch should be applied after 110.buff.patch

I'll do the same for the rfc931 check, and rewrite rfc931.c at the
same time.

 David.