Add "check_sha1_signature()" helper function

diff --git a/cache.h b/cache.h
index 17328597657d2ae4a944a49b337a4beef60942ec..864f70bfe5aad68614a50c825d724833294834de 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -82,6 +82,7 @@ extern int write_sha1_buffer(unsigned char *sha1, void *buf, unsigned int size);
 
 /* Read and unpack a sha1 file into memory, write memory to a sha1 file */
 extern void * map_sha1_file(unsigned char *sha1, unsigned long *size);
+extern void * unpack_sha1_file(void *map, unsigned long mapsize, char *type, unsigned long *size);
 extern void * read_sha1_file(unsigned char *sha1, char *type, unsigned long *size);
 extern int write_sha1_file(char *buf, unsigned len);
 extern int check_sha1_signature(unsigned char *sha1, void *buf, unsigned long size);