* test/socket/test_socket.rb: unix socket is required by test case.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45037 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* configure.in: it must see rb_cv_broken_memmem not rb_cv_func_memmem.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45042 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-02-19

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45043 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/socket/ipsocket.c (ip_s_getaddress): Don't access freed memory.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45045 b2dd03c8-39d4-4d8f-98ff-823fe69b080e