* ext/openssl/ossl.c (ossl_verify_cb): trap the exception from
verify callback of SSLContext and X509Store and make the
verification fail normally. Raising exception directly from callback
causes orphan resouces in OpenSSL stack. Patched by Ippei Obayashi.
See #4445.
* test/openssl/test_ssl.rb
(test_exception_in_verify_callback_is_ignored): test it.
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variable.
* test/openssl/*: less warnings while test running with -w.
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- SSLContext#client_cert_cb is a Proc. it is called when a client
certificate is requested by a server and no certificate was yet
set for the SSLContext. it must return an Array which includes
OpenSSL::X509::Certificate and OpenSSL::PKey::RSA/DSA objects.
- SSLContext#tmp_dh_callback is called in key exchange with DH
algorithm. it must return an OpenSSL::PKey::DH object.
* ext/openssl/ossl_ssl.c:
(ossl_sslctx_set_ciphers): ignore the argument if it's nil.
(ossl_start_ssl, ossl_ssl_write): call rb_sys_fail if errno isn't 0.
[ruby-dev:25831]
* ext/openssl/ossl_pkey.c
(GetPrivPKeyPtr, ossl_pkey_sign): should call rb_funcall first.
(DupPrivPKeyPtr): new function.
* ext/openssl/ossl_pkey_dh.c: add default DH parameters.
* ext/openssl/ossl_pkey.h: ditto.
* ext/openssl/lib/openssl/cipher.rb: fix typo. [ruby-dev:24285]
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the underlying IO become readable or writable if the error was
SSL_ERROR_WANT_READ or SSL_ERROR_WANT_WRITE. [ruby-dev:25795]
* ext/openssl/ossl_ssl.c (ossl_ssl_read, ossl_ssl_write): ditto.
* ext/openssl/lib/openssl/buffering.rb
(Buffering#consume_rbuf): pointless eof flag resetting is deleted.
(Buffering#read): should return an empty string if the specified
size is zero.
(Buffering#readpartial): new method.
(Buffering#readline): fix typo.
(Buffering#getc): return the first character of string correctly.
(Buffering#readchar): fix typo.
(Buffering#eof?): should read again it the input buffer is empty.
(Buffering#do_write): should rescue Errno::EAGAIN.
(Buffering#puts): use "\n" as the output field separator.
* ext/openssl/extconf.rb: get rid of GNUmakefile generation.
* text/openssl/test_pair.rb: test for IO like methods.
* test/ruby/ut_eof.rb: test about empty file.
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