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[PATCH 1/5] git rev-list: fix invalid typecast

From
Clemens Buchacher <drizzd@aon.at>
Date
Feb 13, 2012, 20:17 UTC
Message-ID
<1329164235-29955-2-git-send-email-drizzd@aon.at>
In-Reply-To
<1329164235-29955-1-git-send-email-drizzd@aon.at>

git rev-list passes rev_list_info, not rev_list objects. Without this fix, rev-list enables or disables the --verify-objects option depending on a read from an undefined memory location.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
---
 builtin/rev-list.c |    4 ++--
 t/t1450-fsck.sh    |   26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index ab3be7c..264e3ae 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -180,10 +180,10 @@ static void show_object(struct object *obj,
 			const struct name_path *path, const char *component,
 			void *cb_data)
 {
-	struct rev_info *info = cb_data;
+	struct rev_list_info *info = cb_data;
 
 	finish_object(obj, path, component, cb_data);
-	if (info->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
+	if (info->revs->verify_objects && !obj->parsed && obj->type != OBJ_COMMIT)
 		parse_object(obj->sha1);
 	show_object_with_name(stdout, obj, path, component);
 }
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index 523ce9c..5b8ebd8 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -191,4 +191,30 @@ test_expect_success 'cleaned up' '
 	test_cmp empty actual
 '
 
+test_expect_success 'rev-list --verify-objects' '
+	git rev-list --verify-objects --all >/dev/null 2>out &&
+	test_cmp empty out
+'
+
+test_expect_success 'rev-list --verify-objects with bad sha1' '
+	sha=$(echo blob | git hash-object -w --stdin) &&
+	old=$(echo $sha | sed "s+^..+&/+") &&
+	new=$(dirname $old)/ffffffffffffffffffffffffffffffffffffff &&
+	sha="$(dirname $new)$(basename $new)" &&
+	mv .git/objects/$old .git/objects/$new &&
+	test_when_finished "remove_object $sha" &&
+	git update-index --add --cacheinfo 100644 $sha foo &&
+	test_when_finished "git read-tree -u --reset HEAD" &&
+	tree=$(git write-tree) &&
+	test_when_finished "remove_object $tree" &&
+	cmt=$(echo bogus | git commit-tree $tree) &&
+	test_when_finished "remove_object $cmt" &&
+	git update-ref refs/heads/bogus $cmt &&
+	test_when_finished "git update-ref -d refs/heads/bogus" &&
+
+	test_might_fail git rev-list --verify-objects refs/heads/bogus >/dev/null 2>out &&
+	cat out &&
+	grep -q "error: sha1 mismatch 63ffffffffffffffffffffffffffffffffffffff" out
+'
+
 test_done
-- 
1.7.9
Previous: Clemens BuchacherNext: Junio C Hamano
Message 4 of 16 in “optionally deny all pushes”
  1. optionally deny all pushesClemens Buchacher, Jan 21, 2012
  2. Junio C HamanoJan 21, 2012
  3. 0/5 verify refs earlyClemens Buchacher, Feb 13, 2012
  4. 1/5 git rev-list: fix invalid typecastClemens Buchacher, Feb 13, 2012
  5. Junio C HamanoFeb 13, 2012
  6. 2/5 do not override receive-pack errorsClemens Buchacher, Feb 13, 2012
  7. Junio C HamanoFeb 13, 2012
  8. Clemens BuchacherFeb 14, 2012
  9. Junio C HamanoFeb 14, 2012
  10. 3/5 git push: verify refs earlyClemens Buchacher, Feb 13, 2012
  11. Junio C HamanoFeb 13, 2012
  12. Clemens BuchacherFeb 14, 2012
  13. 4/5 t5541: use configured port numberClemens Buchacher, Feb 13, 2012
  14. Junio C HamanoFeb 13, 2012
  15. 5/5 push/fetch/clone --no-progress suppresses progress outputClemens Buchacher, Feb 13, 2012
  16. Junio C HamanoFeb 13, 2012

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