extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
+extern int hash_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *sha1);
extern int write_sha1_file(void *buf, unsigned long len, const char *type, unsigned char *return_sha1);
-extern char *write_sha1_file_prepare(void *buf,
- unsigned long len,
- const char *type,
- unsigned char *sha1,
- unsigned char *hdr,
- int *hdrlen);
extern int check_sha1_signature(const unsigned char *sha1, void *buf, unsigned long size, const char *type);