* test/net/http/test_https.rb: Stop the error due to openssl 1.1.1h

	On some environments that uses OpenSSL 1.1.1h, the two tests now fail.

	http://rubyci.s3.amazonaws.com/android29-x86_64/ruby-master/log/20200924T062352Z.fail.html.gz
	https://github.com/ruby/ruby/runs/1159288773?check_suite_focus=true

	```
	  1) Failure:
	TestNetHTTPS#test_get [/data/data/com.termux/files/home/cb/tmp/build/202	00924T062352Z/ruby/test/net/http/test_https.rb:47]:
	<"0\x82\x03\xED0\x82\x02\xD5\xA0\x03..."> expected but was
	<"0\x82\x03\xE30\x82\x02\xCB\xA0\x03...">.
	```

	Not sure why, but verify_callback now seems to receive only SERVER_CERT
	but not CA_CERT.
	It would be good to investigate the issue furthermore, but tentatively,
	I want to stop the failures.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67887 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	test_ftp.rb: loosen timeout for Travis osx

	https://travis-ci.org/ruby/ruby/jobs/454798071

	git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65723 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	net/http, net/ftp: fix session resumption with TLS 1.3

	When TLS 1.3 is in use, the session ticket may not have been sent yet
	even though a handshake has finished. Also, the ticket could change if
	multiple session ticket messages are sent by the server. Use
	SSLContext#session_new_cb instead of calling SSLSocket#session
	immediately after a handshake. This way also works with earlier protocol
	versions.

	net/http, net/ftp: skip SSL/TLS session resumption tests

	Due to a bug in OpenSSL 1.1.0h[1] (it's only in this specific version;
	it was introduced just before the release and is already fixed in their
	stable branch), the callback set by SSLContext#session_new_cb= does not
	get called for clients, making net/http and net/ftp not attempt session
	resumption.

	Let's disable the affected test cases for now. Another option would be
	to fallback to using SSLSocket#session as we did before r64234. But
	since only a single version is affected and hopefully a new stable
	version containing the fix will be released in near future, I chose not
	to add such workaround code to lib/.

	[1] https://github.com/openssl/openssl/pull/5967

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@67237 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	Try to update cert

	Try to update cert (2nd try)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@66689 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	net/pop: make modified strings mutable

	Thanks to Michael Zimmerman for the bug report

	* lib/net/pop.rb: make modified strings mutable
	  [ruby-core:85210] [Bug #14416]
	* test/net/pop/test_pop.rb: new test

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64443 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	net/imap: Fix ArgumentError in send_string_data

	Thanks to ShockwaveNN (Pavel Lobashov) for reporting the bug.
	[ruby-core:86990] [Bug #14750]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64420 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	io.c: workaround for EPROTOTYPE

	* io.c (internal_write_func, internal_writev_func): retry at
	  unexpected EPROTOTYPE on macOS, to get rid of a kernel bug.
	  [ruby-core:86690] [Bug #14713]

	* ext/socket/init.c (rsock_{sendto,send,write}_blocking): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@63826 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	net/ftp: fix FrozenError in BufferedSocket

	I noticed this bug while working on something else with
	RUBYOPT=-d on, existing test cases all passed with it.

	Note: I use String.new because it is the local style, here,
	I prefer +'' (or ''.b, for a future commit)

	* lib/net/ftp.rb (BufferedSocket#read): use String.new
	* test/net/ftp/test_buffered_socket.rb (test_read_nil): new test
	  [ruby-core:84675] [Bug #14323]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@62425 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

http://ci.rvm.jp/results/trunk-asserts-nopara@ruby-sky1/266962

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61393 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

like r59693, initialize_http_header also should raise error. [Bug #14208]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61359 b2dd03c8-39d4-4d8f-98ff-823fe69b080e