int nfs_call_umount(clnt_addr_t *, dirpath *);
int clnt_ping(struct sockaddr_in *, const unsigned long,
const unsigned long, const unsigned int,
struct sockaddr_in *);
int nfs_call_umount(clnt_addr_t *, dirpath *);
int clnt_ping(struct sockaddr_in *, const unsigned long,
const unsigned long, const unsigned int,
struct sockaddr_in *);