From: Jeff King <peff@peff.net>
To: "brian m. carlson" <sandals@crustytoothpaste.net>,
git@vger.kernel.org, "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>,
"Junio C Hamano" <gitster@pobox.com>
Subject: Re: [PATCH v2 07/21] builtin/receive-pack: convert portions to struct object_id
Date: Wed, 29 Mar 2017 21:37:33 -0400 [thread overview]
Message-ID: <20170330013733.mr7ocka63iddmdj7@sigill.intra.peff.net> (raw)
In-Reply-To: <20170329232152.lpz3biuk6eq43ftb@genre.crustytoothpaste.net>
On Wed, Mar 29, 2017 at 11:21:52PM +0000, brian m. carlson wrote:
> On Tue, Mar 28, 2017 at 03:07:12AM -0400, Jeff King wrote:
> > It took me a while to find it. This is the switch from "len == 48" to
> > "len > 8" when matching "shallow" lines. I think this makes sense.
> >
> > > Note that in queue_command we are guaranteed to have a NUL-terminated
> > > buffer or at least one byte of overflow that we can safely read, so the
> > > linelen check can be elided. We would die in such a case, but not read
> > > invalid memory.
> >
> > I think linelen is always just strlen(line). Since the queue_command
> > function no longer cares about it, perhaps we can just omit it?
>
> I've just looked at this to put in a fix, and I don't agree. We are
> guaranteed that we'll have overflow, but linelen can point to a newline,
> not just a NUL, so it isn't always strlen(line). This is the case in
> queue_commands_from_cert.
>
> We do use this value, in computing the reflen value, so I think it's
> better to keep it for now. I agree that a future refactor could convert
> it to be NUL-terminated, but I'd rather not make that change here.
Yeah, you might have missed my followup:
http://public-inbox.org/git/20170328173536.ylwesrj7jbreztcy@sigill.intra.peff.net/
Basically yes, I agree it's probably not worth trying to refactor
further.
-Peff
next prev parent reply other threads:[~2017-03-30 1:37 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-26 16:01 [PATCH v2 00/21] object_id part 7 brian m. carlson
2017-03-26 16:01 ` [PATCH v2 01/21] Define new hash-size constants for allocating memory brian m. carlson
2017-03-26 16:01 ` [PATCH v2 02/21] Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ brian m. carlson
2017-03-26 16:01 ` [PATCH v2 03/21] Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ brian m. carlson
2017-03-26 16:01 ` [PATCH v2 04/21] builtin/diff: convert to struct object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 05/21] builtin/pull: convert portions " brian m. carlson
2017-03-26 16:01 ` [PATCH v2 06/21] builtin/receive-pack: fix incorrect pointer arithmetic brian m. carlson
2017-03-28 6:51 ` Jeff King
2017-03-28 16:58 ` Junio C Hamano
2017-03-26 16:01 ` [PATCH v2 07/21] builtin/receive-pack: convert portions to struct object_id brian m. carlson
2017-03-28 7:07 ` Jeff King
2017-03-29 23:21 ` brian m. carlson
2017-03-30 1:37 ` Jeff King [this message]
2017-03-26 16:01 ` [PATCH v2 08/21] fsck: convert init_skiplist " brian m. carlson
2017-03-26 16:01 ` [PATCH v2 09/21] parse-options-cb: convert sha1_array_append caller " brian m. carlson
2017-03-26 16:01 ` [PATCH v2 10/21] test-sha1-array: convert most code " brian m. carlson
2017-03-26 16:01 ` [PATCH v2 11/21] sha1_name: convert struct disambiguate_state to object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 12/21] sha1_name: convert disambiguate_hint_fn to take object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 13/21] submodule: convert check_for_new_submodule_commits to object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 14/21] builtin/pull: convert to struct object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 15/21] sha1-array: convert internal storage for struct sha1_array to object_id brian m. carlson
2017-03-28 7:24 ` Jeff King
2017-03-26 16:01 ` [PATCH v2 16/21] Make sha1_array_append take a struct object_id * brian m. carlson
2017-03-28 7:26 ` Jeff King
2017-03-28 17:27 ` Junio C Hamano
2017-03-29 0:06 ` brian m. carlson
2017-03-29 15:14 ` Junio C Hamano
2017-03-29 22:28 ` brian m. carlson
2017-03-26 16:01 ` [PATCH v2 17/21] Convert remaining callers of sha1_array_lookup to object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 18/21] Convert sha1_array_lookup to take struct object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 19/21] Convert sha1_array_for_each_unique and for_each_abbrev to object_id brian m. carlson
2017-03-26 16:01 ` [PATCH v2 20/21] Rename sha1_array to oid_array brian m. carlson
2017-03-26 16:01 ` [PATCH v2 21/21] Documentation: update and rename api-sha1-array.txt brian m. carlson
2017-03-28 7:31 ` [PATCH v2 00/21] object_id part 7 Jeff King
2017-03-28 11:13 ` brian m. carlson
2017-03-28 17:35 ` Jeff King
2017-03-28 17:42 ` Jeff King
2017-03-28 19:40 ` Junio C Hamano
2017-03-28 20:00 ` Jeff King
2017-03-28 17:32 ` Junio C Hamano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170330013733.mr7ocka63iddmdj7@sigill.intra.peff.net \
--to=peff@peff.net \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=pclouds@gmail.com \
--cc=sandals@crustytoothpaste.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).