From: Stephen Hemminger <stephen@networkplumber.org>
To: Tyler Retzlaff <roretzla@linux.microsoft.com>
Cc: dev@dpdk.org, ciara.power@intel.com, bruce.richardson@intel.com,
david.marchand@redhat.com, thomas@monjalon.net
Subject: Re: [PATCH 1/2] telemetry: use malloc instead of variable length array
Date: Mon, 3 Apr 2023 13:19:12 -0700 [thread overview]
Message-ID: <20230403131913.0aec54ce@hermes.local> (raw)
In-Reply-To: <1680539424-20255-2-git-send-email-roretzla@linux.microsoft.com>
On Mon, 3 Apr 2023 09:30:23 -0700
Tyler Retzlaff <roretzla@linux.microsoft.com> wrote:
> __json_snprintf(char *buf, const int len, const char *format, ...)
> {
> - char tmp[len];
> + char *tmp = malloc(len);
> va_list ap;
> - int ret;
> + int ret = 0;
> +
> + if (tmp == NULL)
> + return ret;
>
> va_start(ap, format);
> ret = vsnprintf(tmp, sizeof(tmp), format, ap);
> va_end(ap);
> if (ret > 0 && ret < (int)sizeof(tmp) && ret < len) {
> strcpy(buf, tmp);
> - return ret;
> }
> - return 0; /* nothing written or modified */
> +
> + free(tmp);
> +
> + return ret;
> }
Not sure why it needs a tmp buffer anyway?
next prev parent reply other threads:[~2023-04-03 20:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-03 16:30 [PATCH 0/2] improve code portability Tyler Retzlaff
2023-04-03 16:30 ` [PATCH 1/2] telemetry: use malloc instead of variable length array Tyler Retzlaff
2023-04-03 17:17 ` Tyler Retzlaff
2023-04-03 20:19 ` Stephen Hemminger [this message]
2023-04-03 20:40 ` Tyler Retzlaff
2023-04-04 8:47 ` Bruce Richardson
2023-04-04 16:24 ` Tyler Retzlaff
2023-04-04 16:28 ` Bruce Richardson
2023-04-04 16:44 ` Tyler Retzlaff
2023-04-04 17:25 ` Bruce Richardson
2023-04-04 17:34 ` Tyler Retzlaff
2023-04-05 1:20 ` Stephen Hemminger
2023-04-05 8:53 ` Bruce Richardson
2023-04-05 1:04 ` Stephen Hemminger
2023-04-05 8:54 ` Bruce Richardson
2023-04-05 15:25 ` Tyler Retzlaff
2023-04-05 15:30 ` Dmitry Kozlyuk
2023-04-05 15:37 ` Stephen Hemminger
2023-04-05 15:47 ` Bruce Richardson
2023-04-03 16:30 ` [PATCH 2/2] telemetry: use portable syntax to initialize array Tyler Retzlaff
2023-04-03 17:04 ` [PATCH 0/2] improve code portability Bruce Richardson
2023-04-03 17:35 ` Tyler Retzlaff
2023-04-03 18:47 ` [PATCH v2] " Tyler Retzlaff
2023-04-03 18:47 ` [PATCH v2] telemetry: use portable syntax to initialize array Tyler Retzlaff
2023-04-03 18:59 ` [PATCH v3] improve code portability Tyler Retzlaff
2023-04-03 18:59 ` [PATCH v3] telemetry: use portable syntax to initialize array Tyler Retzlaff
2023-04-04 8:51 ` Bruce Richardson
2023-04-04 15:54 ` Tyler Retzlaff
2023-04-04 16:08 ` Bruce Richardson
2023-04-04 9:01 ` Konstantin Ananyev
2023-04-04 15:59 ` Tyler Retzlaff
2023-04-04 16:19 ` Bruce Richardson
2023-04-04 16:28 ` Tyler Retzlaff
2023-04-04 18:09 ` [PATCH v4] improve code portability Tyler Retzlaff
2023-04-04 18:09 ` [PATCH v4] telemetry: remove non-portable array initialization syntax Tyler Retzlaff
2023-04-05 8:56 ` Bruce Richardson
2023-04-05 15:27 ` Tyler Retzlaff
2023-04-05 18:52 ` [PATCH v5] improve code portability Tyler Retzlaff
2023-04-05 18:52 ` [PATCH v5] telemetry: remove non-portable array initialization syntax Tyler Retzlaff
2023-05-24 20:54 ` Thomas Monjalon
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