Overhauled SSL to use explicit BIO buffers

luprex/cpp/core/drivenengine.cpp

@@ -505,12 +505,13 @@ void DrivenEngine::drv_sent_outgoing(uint32_t chid, uint32_t nbytes) {
 }
 
 void DrivenEngine::drv_recv_incoming(uint32_t chid, uint32_t nbytes, const char *bytes) {
+    std::string_view sbytes(bytes, nbytes);
     if (nbytes > 0) {
         Channel *ch = get_chid(chid);
         if (ch->sb_drvout_ != ch->sb_out_) {
-            ch->feed_readline(bytes);
+            ch->feed_readline(sbytes);
         } else {
-            ch->sb_in_->write_bytes(bytes);
+            ch->sb_in_->write_bytes(sbytes);
         }
     }
 }

luprex/cpp/core/drivenengine.hpp

@@ -77,7 +77,7 @@ public:
     //
     const eng::string &target() const { return target_; }
 
-    // True if the remote closed the connection, or a failure occurred.
+    // True if the remote has closed the connection.
     //
     bool closed() const { return closed_; }