X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/18b3351a3791f19a63c0af05640719db8eb5d184..f377eee1983a7c9f33a9920b3bf16180dca909da:/cc.h

diff --git a/cc.h b/cc.h
index 04ff17f..2e0503a 100644
--- a/cc.h
+++ b/cc.h
@@ -326,6 +326,17 @@ extern const encodeops *getencoding(const char */*ename*/);
 
 /*----- File hashing ------------------------------------------------------*/
 
+/* --- @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*/);
+
 /* --- @fhash@ --- *
  *
  * Arguments:	@const gchash *gch@ = pointer to hash function to use
@@ -346,6 +357,37 @@ extern const encodeops *getencoding(const char */*ename*/);
 extern int fhash(const gchash */*gch*/, unsigned /*f*/,
 		 const char */*file*/, void */*buf*/);
 
+/* --- @hfparse@ --- *
+ *
+ * Arguments:	@hfpctx *hfp@ = pointer to the context structure
+ *
+ * Returns:	A code indicating what happened.
+ *
+ * Use:		Parses a line from the input file.
+ */
+
+enum {					/* Meaning and members set */
+  HF_FILE,				/* File hash: @dline@ and @hbuf@ */
+  HF_ENC,				/* Encoding: @ee@ */
+  HF_HASH,				/* Hash function: @gch@ */
+  HF_ESC,				/* Name escape: @f@ */
+  HF_EOF,				/* End of file */
+  HF_BAD				/* Unrecognized line */
+};
+
+typedef struct hfpctx {
+  unsigned f;				/* Flags to read */
+#define HFF_ESCAPE 1u			/*   File names are escaped */
+  FILE *fp;				/* Input file to read */
+  dstr *dline;				/* Line contents, corrupted */
+  const gchash *gch;			/* Hash function to use */
+  const encodeops *ee;			/* Encoding to apply to hashes */
+  dstr *dfile;				/* File name for @HF_FILE@ lines */
+  octet *hbuf;				/* Output buffer for hash data */
+} hfpctx;
+
+extern int hfparse(hfpctx */*hfp*/);
+
 /*----- String I/O --------------------------------------------------------*/
 
 #define GSF_RAW 4096u