[core] add remote IP to some error msgs (fixes #3122)

add remote IP to some select error msgs

x-ref:
  "Error messages should include client IP"
  https://redmine.lighttpd.net/issues/3122

src/connections.c

@@ -715,10 +715,11 @@ static int connection_handle_read_state(connection * const con)  {
             /* expecting ASCII method beginning with alpha char
              * or HTTP/2 pseudo-header beginning with ':' */
             /*(TLS handshake begins with SYN 0x16 (decimal 22))*/
-            log_error(r->conf.errh, __FILE__, __LINE__, "%s",
+            log_error(r->conf.errh, __FILE__, __LINE__, "%s (%s)",
                       c->mem->ptr[c->offset] == 0x16
                       ? "unexpected TLS ClientHello on clear port"
-                      : "invalid request-line -> sending Status 400");
+                      : "invalid request-line -> sending Status 400",
+                      con->dst_addr_buf.ptr);
             r->http_status = 400; /* Bad Request */
             r->keep_alive = 0;
             connection_set_state(r, CON_STATE_REQUEST_END);

src/mod_openssl.c

@@ -3133,7 +3133,8 @@ connection_read_cq_ssl (connection * const con, chunkqueue * const cq, off_t max
         if (hctx->renegotiations > 1
             && hctx->conf.ssl_disable_client_renegotiation) {
             log_error(hctx->errh, __FILE__, __LINE__,
-              "SSL: renegotiation initiated by client, killing connection");
+              "SSL: renegotiation initiated by client, killing connection (%s)",
+              con->dst_addr_buf.ptr);
             return -1;
         }
 
@@ -3245,7 +3246,8 @@ connection_read_cq_ssl (connection * const con, chunkqueue * const cq, off_t max
                 }
                 /* get all errors from the error-queue */
                 log_error(hctx->errh, __FILE__, __LINE__,
-                  "SSL: %d %s", rc, ERR_error_string(ssl_err, NULL));
+                  "SSL: %d %s (%s)", rc, ERR_error_string(ssl_err, NULL),
+                  con->dst_addr_buf.ptr);
             }
             break;
         }