+typedef struct fhashstate {
+ const gchash *gch;
+ unsigned f;
+ struct fhent *ents;
+} fhashstate;
+
+#define FHF_BINARY 0x100u
+#define FHF_PROGRESS 0x200u
+#define FHF_JUNK 0x400u
+
+#define FHF_MASK 0xff00u
+
+/* --- @gethash@ --- *
+ *
+ * Arguments: @const char *name@ = pointer to name string
+ *
+ * Returns: Pointer to appropriate hash class.
+ *
+ * Use: Chooses a hash function by name.
+ */
+
+extern const gchash *gethash(const char */*name*/);
+
+/* --- @describefile@ --- *
+ *
+ * Arguments: @const struct stat *st@ = pointer to file state
+ *
+ * Returns: A snappy one-word description of the file.
+ */
+
+extern const char *describefile(const struct stat */*st*/);
+
+/* --- @fhash_init@ ---*
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state to initialize
+ * @const gchash *gch@ = hash class to set
+ * @unsigned f@ initial flags to set
+ *
+ * Returns: ---
+ *
+ * Use: Initializes an @fhashstate@ structure.
+ */
+
+extern void fhash_init(fhashstate */*fh*/,
+ const gchash */*gch*/, unsigned /*f*/);
+
+/* --- @fhash_free@ --- *
+ *
+ * Arguments: @fhashstate *fh@ = pointer to fhash state to free
+ *
+ * Returns: ---
+ *
+ * Use: Frees an fhash state.
+ */
+
+extern void fhash_free(fhashstate */*fh*/);
+