I don't know any FTP host names or passwords.
In such cases, the following sites are helpful.
http://blog.tstylestudio.com/2012/08/22/%E3%80%8C%E8%A6%81%E6%B1%82%E3%81%95%E3%82%8C%E3%81%9F%E3%82%A2%E3%82%AF%E3%82%B7%E3%83%A7%E3%83%B3%E3%82%92%E5%AE%9F%E8%A1%8C%E3%81%99%E3%82%8B%E3%81%AB%E3%81%AF%E3%80%81wordpress-%E3%81%8C-web/
For some reason, I can't enter the wp-config.php file, even if I enter the username and password that are written in the wp-config.php file.
As a result, this site was most helpful.
http://patareru.net/archives/350
-rw-r--r--@ 1 yakko_tofu wheel 28 1 8 2012 index.php
drwxr-xr-x@ 10 yakko_tofu wheel 340 9 8 2012 languages
drwxrwxrwx@ 6 yakko_tofu wheel 204 9 8 2012 plugins
drwxr-xr-x@ 5 yakko_tofu wheel 170 9 8 2012 themes
drwxrwxrwx 2 yakko_tofu wheel 68 6 18 00:44 upgrade