SSL_R_SHORT_READ undefined in openssl-1.1

[LocutusOfBorg]

Hi, seems that variable disappeared from new openssl, and it makes websocketpp fail to build with the new one. I tried to understand the asio change chriskohlhoff/asio@7249bcc
but I probably failed.
Attached a patch that makes it build, but I honestly don't know what does it mean :)

--- websocketpp-0.7.0.orig/websocketpp/transport/asio/security/tls.hpp
+++ websocketpp-0.7.0/websocketpp/transport/asio/security/tls.hpp
@@ -355,8 +355,13 @@ protected:
     template <typename ErrorCodeType>
     lib::error_code translate_ec(ErrorCodeType ec) {
         if (ec.category() == lib::asio::error::get_ssl_category()) {
+#if defined SSL_R_SHORT_READ
             if (ERR_GET_REASON(ec.value()) == SSL_R_SHORT_READ) {
                 return make_error_code(transport::error::tls_short_read);
+#else
+            if (ERR_GET_REASON(ec.value()) == boost::asio::ssl::error::stream_truncated) {
+                return make_error_code(boost::asio::ssl::error::stream_truncated);
+#endif

[jeremyong]

+1 this issue is a blocker in adopting OpenSSL 1.1

[LocutusOfBorg]

the patch is already in Debian BTW
LocutusOfBorg@1dd0711

[leetal]

This also blocks for using BoringSSL

[LocutusOfBorg]

this is the commit to take
LocutusOfBorg@1dd0711