#define PACK_IDX_SIGNATURE 0xff744f63 /* "\377tOc" */
extern int verify_pack(struct packed_git *, int);
+
+#define PH_ERROR_EOF (-1)
+#define PH_ERROR_PACK_SIGNATURE (-2)
+#define PH_ERROR_PROTOCOL (-3)
+extern int read_pack_header(int fd, struct pack_header *);
#endif