+2006-12-07 Michael Poole <mdpoole@troilus.org>
+
+ * doc/example.conf (Port): Document the method to select IPv4 or
+ IPv6 restriction for a port.
+
+ * include/listener.h (LISTEN_IPV4): New listener flag.
+ (LISTEN_IPV6): New listener flag.
+ (struct Listener): Split 'fd' and 'socket' fields into two each.
+
+ * ircd/ircd_lexer.l (gb): Move to be alphabetical.
+ (gigabytes): Likewise.
+ (ipv4): New token.
+ (ipv6): Likewise.
+ Adapted word matcher to handle digits in the non-leading character.
+
+ * ircd/ircd_parser.y (USE_IPV4): New macro.
+ (USE_IPV6): Likewise.
+ (TOK_IPV4): New token.
+ (TOK_IPV6): Likewise.
+ (address_family): New non-terminal rule.
+ (portblock): Default to listening on both IPv4 and IPv6.
+ (portnumber): Add address_family element and use it.
+ (portvhost): Likewise.
+
+ * ircd/listener.c (make_listener): Adjust for newly split fields
+ in struct Listener.
+ (inetport): Likewise. Adjust return value as well.
+ (add_listener): Update to handle both IPv4 and IPV6 support.
+ (close_listener): Likewise.
+ (accept_connection): Because each listener has two sockets, it is
+ no longer safe to free the listener when one is destroyed -- so
+ don't. Also accept() on the file descriptor from the incoming
+ event rather than on a fixed fd.
+
+ * ircd/os_generic.c (os_socket): For platforms with IPV6_V6ONLY,
+ enable it for AF_INET6 sockets rather than disabling it for
+ unspecified sockets.
+