mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

make find_pack_revindex() aware of the nasty world

Browse Source 
It currently calls die() whenever given offset is not found thinking
that such thing should never happen.  But this offset may come from a
corrupted pack whych _could_ happen and not be found.  Callers should
deal with this possibility gracefully instead.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nicolas Pitre
2008-10-29 19:02:49 -04:00
committed by Junio C Hamano
parent 03d660150c
commit 08698b1e32
3 changed files with 16 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
sha1_file.c
View File

@ -1388,9 +1388,12 @@ static int packed_delta_info(struct packed_git *p,
return OBJ_BAD;
type = packed_object_info(p, base_offset, NULL);
if (type <= OBJ_NONE) {
struct revindex_entry *revidx = find_pack_revindex(p, base_offset);
const unsigned char *base_sha1 =
nth_packed_object_sha1(p, revidx->nr);
struct revindex_entry *revidx;
const unsigned char *base_sha1;
revidx = find_pack_revindex(p, base_offset);
if (!revidx)
return OBJ_BAD;
base_sha1 = nth_packed_object_sha1(p, revidx->nr);
mark_bad_packed_object(p, base_sha1);
type = sha1_object_info(base_sha1, NULL);
if (type <= OBJ_NONE)
@ -1682,9 +1685,12 @@ static void *unpack_delta_entry(struct packed_git *p,
* This is costly but should happen only in the presence
* of a corrupted pack, and is better than failing outright.
*/
struct revindex_entry *revidx = find_pack_revindex(p, base_offset);
const unsigned char *base_sha1 =
nth_packed_object_sha1(p, revidx->nr);
struct revindex_entry *revidx;
const unsigned char *base_sha1;
revidx = find_pack_revindex(p, base_offset);
if (!revidx)
return NULL;
base_sha1 = nth_packed_object_sha1(p, revidx->nr);
error("failed to read delta base object %s"
" at offset %"PRIuMAX" from %s",
sha1_to_hex(base_sha1), (uintmax_t)base_offset,