BUG#18779944: MYSQLDUMP BUFFER OVERFLOW

Reverted change due to mtr test failure.

client/mysqldump.c

@@ -5538,36 +5538,19 @@ int main(int argc, char **argv)
       dump_all_tablespaces();
     dump_all_databases();
   }
+  else if (argc > 1 && !opt_databases)
+  {
+    /* Only one database and selected table(s) */
+    if (!opt_alltspcs && !opt_notspcs)
+      dump_tablespaces_for_tables(*argv, (argv + 1), (argc -1));
+    dump_selected_tables(*argv, (argv + 1), (argc - 1));
+  }
   else
   {
-    // Check all arguments meet length condition. Currently database and table
-    // names are limited to NAME_LEN bytes and stack-based buffers assumes
-    // that escaped name will be not longer than NAME_LEN*2 + 2 bytes long.
-    int argument;
-    for (argument= 0; argument < argc; argument++)
-    {
-      size_t argument_length= strlen(argv[argument]);
-      if (argument_length > NAME_LEN)
-      {
-        die(EX_CONSCHECK, "[ERROR] Argument '%s' is too long, it cannot be "
-          "name for any table or database.\n", argv[argument]);
-      }
-    }
-
-    if (argc > 1 && !opt_databases)
-    {
-      /* Only one database and selected table(s) */
-      if (!opt_alltspcs && !opt_notspcs)
-        dump_tablespaces_for_tables(*argv, (argv + 1), (argc - 1));
-      dump_selected_tables(*argv, (argv + 1), (argc - 1));
-    }
-    else
-    {
-      /* One or more databases, all tables */
-      if (!opt_alltspcs && !opt_notspcs)
-        dump_tablespaces_for_databases(argv);
-      dump_databases(argv);
-    }
+    /* One or more databases, all tables */
+    if (!opt_alltspcs && !opt_notspcs)
+      dump_tablespaces_for_databases(argv);
+    dump_databases(argv);
   }
 
   /* if --dump-slave , start the slave sql thread */