* ext/socket: Wrap struct addrinfo by struct rb_addrinfo.

	* ext/socket: Bypass getaddrinfo() if node and serv are numeric.
	  Reporeted by Naotoshi Seo.  [ruby-core:60801] [Bug #9525]

	* ext/socket/extconf.rb: Detect struct sockaddr_in6.sin6_len.

	* ext/socket/sockport.h (SET_SIN6_LEN): New macro.
	  (INIT_SOCKADDR_IN6): Ditto.

	* ext/socket/rubysocket.h (struct rb_addrinfo): Add
	  allocated_by_malloc field.

	* ext/socket/raddrinfo.c (numeric_getaddrinfo): New function.
	  (rb_getaddrinfo): Call numeric_getaddrinfo at first.
	  (rb_freeaddrinfo): Free struct addrinfo properly when it is
	  allocated by numeric_getaddrinfo.

	* ext/socket/raddrinfo.c (numeric_getaddrinfo): Use xcalloc.
	  Suggested by Eric Wong.
	  https://bugs.ruby-lang.org/issues/9525#note-14

	* ext/socket/raddrinfo.c (rb_getaddrinfo): second argument of
	  MEMZERO is type.  Coverity Scan found this bug.

	* include/ruby/win32.h, win32/win32.c (rb_w32_inet_pton): add a
	  wrapper function for inet_pton minimum supported client is
	  Vista, as well as inet_ntop.

	* ext/socket/option.c (inet_pton): use rb_w32_inet_pton, instead of
	  inet_ntop directly, which is unavailable on older version Windows.

	* ext/socket/raddrinfo.c (inet_pton): use rb_w32_inet_pton, instead of
	  inet_pton directly, which is unavailable on older version Windows.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@47415 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* ext/socket/ipsocket.c (ip_s_getaddress): Don't access freed memory.

	* ext/socket: Wrap struct addrinfo by struct rb_addrinfo.

	* ext/socket/socket.c (sock_s_getnameinfo): Save errno for EAI_SYSTEM.
	  Reported by Saravana kumar.  [ruby-core:61820] [Bug #9697]
	  Fixed by Heesob Park.  [ruby-core:61868]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46054 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* ext/socket/socket.c (rsock_sys_fail_host_port): save and restore errno
	  before calling rb_sys_fail_str to prevent [BUG] errno == 0.
	  Patch by Eric Wong. [ruby-core:59498] [Bug #9352]

	* ext/socket/socket.c (rsock_sys_fail_path): ditto

	* ext/socket/socket.c (rsock_sys_fail_sockaddr): ditto

	* ext/socket/socket.c (rsock_sys_fail_raddrinfo): ditto

	* ext/socket/socket.c (rsock_sys_fail_raddrinfo_or_sockaddr): ditto

	* ext/socket/socket.c (rsock_syserr_fail_host_port): add errno
	  argument version anduse rb_syserr_fail_str() instead of
	  rb_sys_fail_str() with restoring errno.

	* ext/socket/socket.c (rsock_syserr_fail_path): ditto, and
	  rb_syserr_fail().

	* ext/socket/socket.c (rsock_sys_fail_sockaddr): ditto, use
	  rsock_syserr_fail_raddrinfo().

	* ext/socket/socket.c (rsock_sys_fail_raddrinfo): ditto.

	* ext/socket/socket.c (setup_domain_and_type): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@44842 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* ext/socket/extconf.rb: check for if_nametoindex() for
  i686-w64-mingw32, and check for declarations of if_indextoname() and
  if_nametoindex().
* ext/socket/ifaddr.c (ifaddr_ifindex): not-implement unless
  if_nametoindex() is available.
* ext/socket/rubysocket.h: declare if_indextoname() and
  if_nametoindex() if available but not declared.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  MSVC has struct sockadddr_dl, but its content is broken.
  http://ruby-mswin.cloudapp.net/vc10-x64/ruby-trunk/log/20130511T103938Z.log.html.gz

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40646 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  [ruby-core:54777] [Feature #8368]



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40639 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  ext/socket/ancdata.c: Use HAVE_STRUCT_MSGHDR_MSG_CONTROL instead
  of HAVE_ST_MSG_CONTROL.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40623 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40338 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* ext/socket/raddrinfo.c (ext/socket/raddrinfo.c): Reject too long
  Linux abstract socket name.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40335 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40196 b2dd03c8-39d4-4d8f-98ff-823fe69b080e