* ext/socket/ancdata.c (bsock_sendmsg_internal): only retry on error
	  (bsock_recvmsg_internal): ditto

	* test/socket/test_unix.rb: test above for infinite loop


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	* ext/socket/init.c (wait_connectable): break if the socket is
	  writable to avoid infinite loops on FreeBSD and other platforms
	  which conforms to SUSv3.  This problem cannot be reproduced with
	  loopback interfaces, so it's hard to write test code.
	  rsock_connect() and wait_connectable() are overly complicated, so
	  they should be refactored, but I commit this fix as a workaround
	  for the release of Ruby 1.9.3 scheduled on Feb 24.
	  [ruby-core:60940] [Bug #9547]


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  platforms.


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	* ext/socket: Avoid unnecessary ppoll/select on Linux.
	  Patch by Eric Wong.  [ruby-core:57950] [Bug #9039]


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	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): work around for Ubuntu
	  13.04's getaddrinfo issue with mdns4. [ruby-list:49420]

	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): Add missing return
	  value assignment.

	* ext/socket/raddrinfo.c (nogvl_getaddrinfo): Fix indent.


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	* ext/socket/lib/socket.rb: Don't test $! in "ensure" clause because
	  it may be set before the body.
	  Reported by ko1 and mrkn.  [ruby-core:59088] [Bug #9247]

	* lib/cgi/core.rb: Ditto.

	* lib/drb/ssl.rb: Ditto.


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	* ext/socket/extconf.rb:  Enable RFC 3542 IPV6 socket options for OS X
	  10.7+.  [ruby-trunk - Bug #8517]


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	* ext/socket/raddrinfo.c (init_unix_addrinfo): support the longest
	  path in sockaddr_un.
	  (inspect_sockaddr): ditto.
	  (addrinfo_mdump): ditto.
	  (addrinfo_mload): ditto.
	  (rsock_unixpath_str): new function.
	  (rsock_unixpath): removed.
	  (rsock_unixaddr): use rsock_unixpath_str.

	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
	  path in sockaddr_un.
	  (sock_s_unpack_sockaddr_un): ditto.
	  (sock_s_gethostbyaddr): unused variable removed.

	* ext/socket/unixsocket.c (rsock_init_unixsock): support the longest
	  path in sockaddr_un.

	* ext/socket/rubysocket.h (rsock_unixpath_str): declared.
	  (rsock_unixpath): removed.

	* test/socket/test_unix.rb: comment out test_nul because abstract unix
	  sockets may contain NULs.

	* ext/socket/socket.c (sock_s_pack_sockaddr_un): support the longest
	  path in sockaddr_un, really.
	  reported by nagachika.
	  http://d.hatena.ne.jp/nagachika/20120426/ruby_trunk_changes_35474_35476

	* ext/socket/raddrinfo.c (rsock_unixpath_len, init_unix_addrinfo),
	  ext/socket/unixsocket.c (unixsock_connect_internal,
	  rsock_init_unixsock): calculate the correct address length of
	  an abstract socket.  Without this fix, sizeof(struct sockaddr_un)
	  is specified as the length of an abstract socket for bind(2) or
	  connect(2), so the address of the socket is filled with extra NUL
	  characters.  See unix(7) for details.

	* ext/socket/lib/socket.rb (unix_server_socket): don't access the
	  file system if the platform is Linux and path starts with NUL,
	  which means that the socket is an abstract socket.

	* test/socket/test_unix.rb: related test.

	* ext/socket/raddrinfo (rsock_unix_sockaddr_len): renamed from
	  rsock_unixpath_len, because it returns not the length of the path,
	  but the length of a socket address for the path.

	* ext/socket/socket.c (sock_s_pack_sockaddr_un): calculate the
	  correct address length of an abstract socket.

	* test/socket/test_unix.rb: related test.

	* ext/socket/unixsocket.c (rsock_init_unixsock): use rb_inspect()
	  because rb_sys_fail_str() fails if its argument contains NUL.

	* test/socket/test_unix.rb: related test.

	* ext/socket/raddrinfo.c (rsock_unix_sockaddr_len): return
	  sizeof(sa_familiy_t) if path is empty.  see "Autobind Feature" in
	  unix(7) for details.

	* ext/socket/lib/socket.rb (unix_socket_abstract_name?): treat an
	  empty path as an abstract name.

	* test/socket/test_unix.rb: related test.


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	* ext/socket/basicsocket.c (bsock_getsockname): ignore truncated
	  part of socket address.
	  (bsock_getpeername): ditto.
	  (bsock_local_address): ditto.
	  (bsock_remote_address): ditto.

	* ext/socket/unixsocket.c (unix_path): ditto.
	  (unix_addr): ditto.
	  (unix_peeraddr): ditto.

	* ext/socket/init.c (cloexec_accept): ditto.


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