X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=sha1_file.c;h=0a3a721e97c89f1dd494831a9321de4668f214c8;hb=7a979d99bafae3576d9480007f958eed0c9e0278;hp=3d11a9bfdc56c00056c2057af5e6455742ab31f5;hpb=3f6726e1f112d221bd2a919e9b1b2927aeef6150;p=git.git

diff --git a/sha1_file.c b/sha1_file.c
index 3d11a9bf..0a3a721e 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -826,11 +826,30 @@ static unsigned long unpack_object_header(struct packed_git *p, unsigned long of
 	return offset;
 }
 
+int check_reuse_pack_delta(struct packed_git *p, unsigned long offset,
+			   unsigned char *base, unsigned long *sizep,
+			   enum object_type *kindp)
+{
+	unsigned long ptr;
+	int status = -1;
+
+	use_packed_git(p);
+	ptr = offset;
+	ptr = unpack_object_header(p, ptr, kindp, sizep);
+	if (*kindp != OBJ_DELTA)
+		goto done;
+	memcpy(base, p->pack_base + ptr, 20);
+	status = 0;
+ done:
+	unuse_packed_git(p);
+	return status;
+}
+
 void packed_object_info_detail(struct pack_entry *e,
 			       char *type,
 			       unsigned long *size,
 			       unsigned long *store_size,
-			       int *delta_chain_length,
+			       unsigned int *delta_chain_length,
 			       unsigned char *base_sha1)
 {
 	struct packed_git *p = e->p;
@@ -844,7 +863,7 @@ void packed_object_info_detail(struct pack_entry *e,
 	if (kind != OBJ_DELTA)
 		*delta_chain_length = 0;
 	else {
-		int chain_length = 0;
+		unsigned int chain_length = 0;
 		memcpy(base_sha1, pack, 20);
 		do {
 			struct pack_entry base_ent;