-void add_offset(FILE *, off_t);
-int cmp_str(const void *, const void *);
-void die(const char *) NORETURN;
-void dieperror(const char *, char *) NORETURN;
-void do_order(void);
-void fwrite_be_offt(off_t, FILE *);
-void getargs(int, char *[]);
-int main(int, char *[]);
-void randomize(void);
-void usage(void) NORETURN;
+static uint32_t h2nl(uint32_t h);
+static void getargs(int argc, char **argv);
+static void usage(const char *, ...) __dead __printflike(1, 2);
+static void add_offset(FILE *fp, off_t off);
+static void do_order(void);
+static int cmp_str(const void *vp1, const void *vp2);
+static void randomize(void);
+static void fwrite_be_offt(off_t off, FILE *f);