From: Jeff King <peff@peff.net>
To: Elia Pinto <gitter.spiros@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 10/10] wrapper.c: convert trivial snprintf calls to xsnprintf
Date: Fri, 3 Jun 2016 05:13:47 -0400 [thread overview]
Message-ID: <20160603091347.GG28401@sigill.intra.peff.net> (raw)
In-Reply-To: <20160603074724.12173-10-gitter.spiros@gmail.com>
On Fri, Jun 03, 2016 at 07:47:24AM +0000, Elia Pinto wrote:
> diff --git a/wrapper.c b/wrapper.c
> index 5dc4e15..0d44835 100644
> --- a/wrapper.c
> +++ b/wrapper.c
> @@ -433,16 +433,11 @@ int xmkstemp(char *template)
> int git_mkstemp(char *path, size_t len, const char *template)
> {
> const char *tmp;
> - size_t n;
>
> tmp = getenv("TMPDIR");
> if (!tmp)
> tmp = "/tmp";
> - n = snprintf(path, len, "%s/%s", tmp, template);
> - if (len <= n) {
> - errno = ENAMETOOLONG;
> - return -1;
> - }
> + (void)xsnprintf(path, len, "%s/%s", tmp, template);
> return mkstemp(path);
> }
I don't think this one is a good change. git_mkstemp is a library
function, and there are places that indirectly call it (via the gpg
code) that do not die when it fails (and even if all the callers _did_
die, isn't "could not create temporary file ..." a better error message
than "BUG: attempt to snprintf into too-small buffer"?).
-Peff
next prev parent reply other threads:[~2016-06-03 9:13 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-03 7:47 [PATCH 01/10] builtin/commit.c: convert trivial snprintf calls to xsnprintf Elia Pinto
2016-06-03 7:47 ` [PATCH 02/10] builtin/index-pack.c: " Elia Pinto
2016-06-03 8:53 ` Jeff King
2016-06-03 15:32 ` Ramsay Jones
2016-06-03 17:10 ` Jeff King
2016-06-03 7:47 ` [PATCH 03/10] builtin/tag.c: " Elia Pinto
2016-06-03 8:52 ` Jeff King
2016-06-03 15:37 ` Ramsay Jones
2016-06-03 7:47 ` [PATCH 04/10] combine-diff.c: " Elia Pinto
2016-06-03 8:54 ` Jeff King
2016-06-03 7:47 ` [PATCH 05/10] compat/inet_ntop.c: " Elia Pinto
2016-06-03 7:47 ` [PATCH 06/10] diff.c: " Elia Pinto
2016-06-03 9:03 ` Jeff King
2016-06-03 7:47 ` [PATCH 07/10] fast-import.c: " Elia Pinto
2016-06-03 7:47 ` [PATCH 08/10] refs.c: " Elia Pinto
2016-06-03 7:47 ` [PATCH 09/10] transport-helper.c: " Elia Pinto
2016-06-03 7:47 ` [PATCH 10/10] wrapper.c: " Elia Pinto
2016-06-03 9:13 ` Jeff King [this message]
2016-06-03 8:49 ` [PATCH 01/10] builtin/commit.c: " Jeff King
2016-06-03 9:04 ` Jeff King
2016-06-03 15:25 ` Ramsay Jones
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