+static void accthdr __P((struct s_spcl *));
+static int checksum __P((int *));
+static void findinode __P((struct s_spcl *));
+static void findtapeblksize __P((void));
+static int gethead __P((struct s_spcl *));
+static void readtape __P((char *));
+static void setdumpnum __P((void));
+static u_long swabl __P((u_long));
+static u_char *swablong __P((u_char *, int));
+static u_char *swabshort __P((u_char *, int));
+static void terminateinput __P((void));
+static void xtrfile __P((char *, long));
+static void xtrlnkfile __P((char *, long));
+static void xtrlnkskip __P((char *, long));
+static void xtrmap __P((char *, long));
+static void xtrmapskip __P((char *, long));
+static void xtrskip __P((char *, long));
+