Known bugs:

- crypt() is corrupt on some new slackware versions and maybe other 
  distributions you need a patch for this function.

- setenv() may not work on old redhat versions.

- Dirlisting of large directories may make ftps to crash due to not
  yet fully understood circumstances. The solution is not without
  tradeoffs however you may revert back to old behaviour wich will
  be stable but not fast if you comment out (_COMMENT OUT_ not
  redefining) LIST_EXPERIMENTAL in src/ftps/list.c

