Add ossfuzz.c fuzzer for sqlite3 (taken from the upstream).

Add ossfuzz.c fuzzer for sqlite3 (taken from the upstream).

R=aizatsky@chromium.org, inferno@chromium.org, ochang@chromium.org, shess@chromium.org
BUG=665382
Committed: https://crrev.com/656b55356751d12fd8c643f927691275ef10dded
Cr-Commit-Position: refs/heads/master@{#434002}

[inferno, 2016-11-22 15:15:29]

lgtm

[Scott Hess - ex-Googler, 2016-11-22 19:14:15]

lgtm

https://codereview.chromium.org/2524753002/diff/1/third_party/sqlite/BUILD.gn
File third_party/sqlite/BUILD.gn (right):

https://codereview.chromium.org/2524753002/diff/1/third_party/sqlite/BUILD.gn...
third_party/sqlite/BUILD.gn:281: # TODO(mmoroz, shess): remove fuzz/ossfuzz.c
after next sqlite3 update.
Just for my info, you mean replace that reference with src/test/ossfuzz.c?

[mmoroz, 2016-11-22 20:11:35]

https://codereview.chromium.org/2524753002/diff/1/third_party/sqlite/BUILD.gn
File third_party/sqlite/BUILD.gn (right):

https://codereview.chromium.org/2524753002/diff/1/third_party/sqlite/BUILD.gn...
third_party/sqlite/BUILD.gn:281: # TODO(mmoroz, shess): remove fuzz/ossfuzz.c
after next sqlite3 update.
On 2016/11/22 19:14:14, Scott Hess wrote:
> Just for my info, you mean replace that reference with src/test/ossfuzz.c?

Yes, replace it + remove 'fuzz/ossfuzz.c' file from the repo.

[mmoroz, 2016-11-22 20:11:38]

The CQ bit was checked by mmoroz@chromium.org

[commit-bot: I haz the power, 2016-11-22 20:12:26]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-22 22:04:49]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479845498825570, "parent_rev":
"740609055717b43cb84fbe3bbf66135a9b11a344", "commit_rev":
"d9b468f6040c237c51a6a128381e45373122c529"}

[commit-bot: I haz the power, 2016-11-22 22:05:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-22 22:06:54]

Description was changed from

==========
Add ossfuzz.c fuzzer for sqlite3 (taken from the upstream).

R=aizatsky@chromium.org, inferno@chromium.org, ochang@chromium.org,
shess@chromium.org
BUG=665382
==========

to

==========
Add ossfuzz.c fuzzer for sqlite3 (taken from the upstream).

R=aizatsky@chromium.org, inferno@chromium.org, ochang@chromium.org,
shess@chromium.org
BUG=665382

Committed: https://crrev.com/656b55356751d12fd8c643f927691275ef10dded
Cr-Commit-Position: refs/heads/master@{#434002}
==========

[commit-bot: I haz the power, 2016-11-22 22:06:55]

Patchset 1 (id:??) landed as
https://crrev.com/656b55356751d12fd8c643f927691275ef10dded
Cr-Commit-Position: refs/heads/master@{#434002}

[aizatsky, 2016-11-22 22:18:41]

Max,

I have found that corpus improves coverage of this fuzzer a lot:

https://github.com/google/oss-fuzz/blob/master/targets/sqlite3/Dockerfile#L28

[mmoroz, 2016-12-12 12:23:40]

On 2016/11/22 22:18:41, aizatsky wrote:
> Max,
> 
> I have found that corpus improves coverage of this fuzzer a lot:
> 
> https://github.com/google/oss-fuzz/blob/master/targets/sqlite3/Dockerfile#L28

Thanks for the notice, Mike! I've did the same and uploaded 1994 '*.test' files
from Chromium sqlite revision to
gs://clusterfuzz-corpus/libfuzzer/sqlite3_ossfuzz_fuzzer_static bucket.