From: Jeff King <peff@peff.net>
To: "René Scharfe" <l.s.r@web.de>
Cc: "Junio C Hamano" <gitster@pobox.com>,
"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
"Git List" <git@vger.kernel.org>
Subject: Re: [PATCH v2] bisect--helper: plug strvec leak
Date: Mon, 10 Oct 2022 22:39:10 -0400 [thread overview]
Message-ID: <Y0TXTl0gSBOFQa9B@coredump.intra.peff.net> (raw)
In-Reply-To: <1965b54b-122a-c965-f886-1a7dd6afbfb4@web.de>
On Fri, Oct 07, 2022 at 05:08:42PM +0200, René Scharfe wrote:
> diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
> index 501245fac9..28ef7ec2a4 100644
> --- a/builtin/bisect--helper.c
> +++ b/builtin/bisect--helper.c
> @@ -765,11 +765,10 @@ static enum bisect_error bisect_start(struct bisect_terms *terms, const char **a
> strbuf_read_file(&start_head, git_path_bisect_start(), 0);
> strbuf_trim(&start_head);
> if (!no_checkout) {
> - struct strvec argv = STRVEC_INIT;
> + const char *argv[] = { "checkout", start_head.buf,
> + "--", NULL };
>
> - strvec_pushl(&argv, "checkout", start_head.buf,
> - "--", NULL);
> - if (run_command_v_opt(argv.v, RUN_GIT_CMD)) {
> + if (run_command_v_opt(argv, RUN_GIT_CMD)) {
This is OK with me, but note that one thing we lose is compiler
protection that we remembered the trailing NULL pointer in the argv
array (whereas strvec_pushl() has an attribute that makes sure the last
argument is a NULL).
Probably not that big a deal in practice. It would be nice if there was
a way to annotate this for the compiler, but I don't think there's any
attribute for "this pointer-to-pointer parameter should have a NULL at
the end".
-Peff
next prev parent reply other threads:[~2022-10-11 2:39 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 16:06 PATCH] bisect--helper: plug strvec leak in bisect_start() René Scharfe
2022-10-05 7:29 ` Ævar Arnfjörð Bjarmason
2022-10-05 15:43 ` René Scharfe
2022-10-05 19:44 ` Junio C Hamano
2022-10-06 21:35 ` Ævar Arnfjörð Bjarmason
2022-10-06 21:53 ` Junio C Hamano
2022-10-07 15:08 ` [PATCH v2] bisect--helper: plug strvec leak René Scharfe
2022-10-07 17:21 ` Junio C Hamano
2022-10-11 2:39 ` Jeff King [this message]
2022-10-11 5:42 ` Junio C Hamano
2022-10-11 7:29 ` Ævar Arnfjörð Bjarmason
2022-10-11 13:21 ` Jeff King
2022-10-11 13:20 ` Jeff King
2022-10-11 17:11 ` Junio C Hamano
2022-10-11 18:13 ` Ævar Arnfjörð Bjarmason
2022-10-11 21:43 ` Junio C Hamano
2022-10-14 19:44 ` Jeff King
2022-10-14 20:23 ` Junio C Hamano
2022-10-15 6:51 ` René Scharfe
2022-10-15 18:21 ` Jeff King
2022-10-05 19:41 ` PATCH] bisect--helper: plug strvec leak in bisect_start() Junio C Hamano
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