This is because on some platforms (gnutls on cygwin for example),
library always fails for this function and getting ERROR every time
aria2c invoked is too hard.
To enable RPC over SSL/TLS, specify server certificate and private key
using --rpc-certificate and --rpc-private-key options and enable
--rpc-secure option. After the encryption is enabled, use https and
wss scheme to access RPC server.
Use system-wide certificates for SSL. For GnuTLS it requires the
latest version, 3.0.20. OpenSSL had it for longer. This means that if
SSL library is properly configured to locate system-wide certificates
store, the user don't have to use --ca-certificate option. Also
packagers don't have to use --with-ca-bundle configure option.
Patch from Cristian Morales Vega
Added the ability to verify peer in SSL/TLS using given CA
certificates.
The CA certificates are specified in --ca-certificate option.
By default, the verification is disabled. Use --check-certificate
option to enable it.
* src/HttpRequestCommand.cc
* src/LibgnutlsTLSContext.cc
* src/LibgnutlsTLSContext.h
* src/LibsslTLSContext.cc
* src/LibsslTLSContext.h
* src/MultiUrlRequestInfo.cc
* src/OptionHandlerFactory.cc
* src/SocketCore.cc
* src/SocketCore.h
* src/a2functional.h
* src/message.h
* src/option_processing.cc
* src/prefs.cc
* src/prefs.h
* src/usage_text.h
Introduced TLSContext that holds TLS related data that can be
shared with multiple SSL connections.
* src/DownloadEngineFactory.cc
* src/LibgnutlsTLSContext.cc
* src/LibgnutlsTLSContext.h
* src/LibsslTLSContext.cc
* src/LibsslTLSContext.h
* src/Makefile.am
* src/SocketCore.cc
* src/SocketCore.h
* src/TLSContext.h
* src/message.h
Tatsuhiro Tsujikawa