int  initFTP(char ***protocols, int *nrprotocols);
 int openFTP(const char *url, int method, int flags, const char *referer);
  int  doneFTP(int fd);
 int peekFTP(int fd);
 int readFTP(int fd, char *buffer, size_t nbytes);
 int writeFTP(int fd, const char *buf, size_t nbytes);
  int  closeFTP(int fd);
  int  deleteFTP(const char *url);
  int  infoFTP(int fd, W3ADocumentInfo *buf);