* 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/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]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45129 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* 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


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45120 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* ext/socket/option.c: IP_MULTICAST_LOOP and IP_MULTICAST_TTL socket
	  option takes a byte on OpenBSD.
	  Fixed by Jeremy Evans.  [ruby-core:59496] [Bug #9350]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45056 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

  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.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  When a system had no interface, this function used xmalloc for root
  but did not return any reference to it.  This patch fixes it by
  immediately returning an empty array if no interface is found.
  Coverity Scan found this bug.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  [ruby-core:57138] [Feature #8897]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42948 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  SI brochure.
  http://www.bipm.org/en/si/si_brochure/
  https://www.nmij.jp/library/units/si/

* time.c: Ditto.

* ext/socket/ancdata.c: Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42897 b2dd03c8-39d4-4d8f-98ff-823fe69b080e