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authorShawn O. Pearce <spearce@spearce.org>2010-04-19 07:23:07 -0700
committerJunio C Hamano <gitster@pobox.com>2010-04-19 17:56:13 -0700
commit9b0aa728705439ca4b4e7ec845f79f8487059320 (patch)
tree519fe764ab29f4ab7f87c9baccff601a5e2a9313 /pack-check.c
parentfa5fc15d6ecfb9452c578bb4c80e98ccca12750c (diff)
Extract verify_pack_index for reuse from verify_pack
The dumb HTTP transport should verify an index is completely valid
before trying to use it.  That requires checking the header/footer
but also checking the complete content SHA-1.  All of this logic is
already in the front half of verify_pack, so pull it out into a new
function that can be reused.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'pack-check.c')
-rw-r--r--pack-check.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/pack-check.c b/pack-check.c
index 166ca703c1..395fb9527a 100644
--- a/pack-check.c
+++ b/pack-check.c
@@ -133,14 +133,13 @@ static int verify_packfile(struct packed_git *p,
 	return err;
 }
 
-int verify_pack(struct packed_git *p)
+int verify_pack_index(struct packed_git *p)
 {
 	off_t index_size;
 	const unsigned char *index_base;
 	git_SHA_CTX ctx;
 	unsigned char sha1[20];
 	int err = 0;
-	struct pack_window *w_curs = NULL;
 
 	if (open_pack_index(p))
 		return error("packfile %s index not opened", p->pack_name);
@@ -154,8 +153,18 @@ int verify_pack(struct packed_git *p)
 	if (hashcmp(sha1, index_base + index_size - 20))
 		err = error("Packfile index for %s SHA1 mismatch",
 			    p->pack_name);
+	return err;
+}
+
+int verify_pack(struct packed_git *p)
+{
+	int err = 0;
+	struct pack_window *w_curs = NULL;
+
+	err |= verify_pack_index(p);
+	if (!p->index_data)
+		return -1;
 
-	/* Verify pack file */
 	err |= verify_packfile(p, &w_curs);
 	unuse_pack(&w_curs);