u_long nfsvers_to_mnt(const u_long);
u_long mntvers_to_nfs(const u_long);
int get_socket(struct sockaddr_in *, u_int, int, int);
u_long nfsvers_to_mnt(const u_long);
u_long mntvers_to_nfs(const u_long);
int get_socket(struct sockaddr_in *, u_int, int, int);