If BYE response data is received, return a stream error instead of returning a parse error (fixed #42)

src/low-level/imap/mailimap_parser.c

@@ -8992,6 +8992,17 @@ mailimap_response_parse_progress(mailstream * fd, MMAPString * buffer,
   if ((r != MAILIMAP_NO_ERROR) && (r != MAILIMAP_ERROR_PARSE))
     return r;
   
+  for(clistiter * iter = clist_begin(cont_req_or_resp_data_list) ; iter != NULL ; iter = clist_next(iter)) {
+    struct mailimap_cont_req_or_resp_data * cont_req_or_resp_data = clist_content(iter);
+    if (cont_req_or_resp_data->rsp_type != MAILIMAP_RESP_RESP_DATA) {
+      continue;
+    }
+    if (cont_req_or_resp_data->rsp_data.rsp_resp_data->rsp_type == MAILIMAP_RESP_DATA_TYPE_COND_BYE) {
+      res = MAILIMAP_ERROR_STREAM;
+      goto free_list;
+    }
+  }
+  
   r = mailimap_response_done_parse(fd, buffer, &cur_token, &resp_done,
                                    progr_rate, progr_fun);
   if (r != MAILIMAP_NO_ERROR) {