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From: Bruce Richardson <bruce.richardson@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH 4/5] replace snprintf with strlcpy without adding extra include
Date: Wed, 3 Apr 2019 16:56:39 +0100	[thread overview]
Message-ID: <20190403155638.GA1336@bricha3-MOBL.ger.corp.intel.com> (raw)
Message-ID: <20190403155639.HUj3Tn7TX7dhzkzHJEZysPxRbasHtIiFIlkyjhCXSgI@z> (raw)
In-Reply-To: <20190403085132.1fa33194@shemminger-XPS-13-9360>

On Wed, Apr 03, 2019 at 08:51:32AM -0700, Stephen Hemminger wrote:
> On Wed,  3 Apr 2019 15:45:04 +0100
> Bruce Richardson <bruce.richardson@intel.com> wrote:
> 
> > diff --git a/lib/librte_ring/rte_ring.c b/lib/librte_ring/rte_ring.c
> > index d215acecc..a542f6f5d 100644
> > --- a/lib/librte_ring/rte_ring.c
> > +++ b/lib/librte_ring/rte_ring.c
> > @@ -78,7 +78,7 @@ rte_ring_init(struct rte_ring *r, const char *name, unsigned count,
> >  
> >  	/* init the ring structure */
> >  	memset(r, 0, sizeof(*r));
> > -	ret = snprintf(r->name, sizeof(r->name), "%s", name);
> > +	ret = strlcpy(r->name, name, sizeof(r->name));
> >  	if (ret < 0 || ret >= (int)sizeof(r->name))
> 
> I would rather use the name length that is part of the header file.
> 
> 	if (strnlen(name, RTE_RING_NAMESIZE) == RTE_RING_NAMESIZE)
> 		return -ENAMETOOLONG;
> 
> 	strlcpy(r->name, name, sizeof(r->name))
>
Yes, though honestly it's a matter of preference. Since this was a scripted
replacement each change wasn't checked in too much detail other than a
cursory check for correctness.

  parent reply	other threads:[~2019-04-03 15:56 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-03 14:45 [dpdk-dev] [PATCH 0/5] clean up snprintf use for string copying Bruce Richardson
2019-04-03 14:45 ` Bruce Richardson
2019-04-03 14:45 ` [dpdk-dev] [PATCH 1/5] net/bonding: fix buffer length when printing strings Bruce Richardson
2019-04-03 14:45   ` Bruce Richardson
2019-04-03 15:47   ` Stephen Hemminger
2019-04-03 15:47     ` Stephen Hemminger
2019-04-03 15:51     ` Bruce Richardson
2019-04-03 15:51       ` Bruce Richardson
2019-04-03 15:53       ` Stephen Hemminger
2019-04-03 15:53         ` Stephen Hemminger
2019-04-03 14:45 ` [dpdk-dev] [PATCH 2/5] devtools/cocci: make strlcpy replacement smarter Bruce Richardson
2019-04-03 14:45   ` Bruce Richardson
2019-04-03 14:45 ` [dpdk-dev] [PATCH 3/5] devtools/cocci: create safer version of strlcpy script Bruce Richardson
2019-04-03 14:45   ` Bruce Richardson
2019-04-03 14:45 ` [dpdk-dev] [PATCH 4/5] replace snprintf with strlcpy without adding extra include Bruce Richardson
2019-04-03 14:45   ` Bruce Richardson
2019-04-03 15:51   ` Stephen Hemminger
2019-04-03 15:51     ` Stephen Hemminger
2019-04-03 15:56     ` Bruce Richardson [this message]
2019-04-03 15:56       ` Bruce Richardson
2019-04-04 18:05       ` Thomas Monjalon
2019-04-04 18:05         ` Thomas Monjalon
2019-04-03 14:45 ` [dpdk-dev] [PATCH 5/5] replace snprintf with strlcpy Bruce Richardson
2019-04-03 14:45   ` Bruce Richardson
2019-04-03 14:57 ` [dpdk-dev] [PATCH 0/5] clean up snprintf use for string copying Wiles, Keith
2019-04-03 14:57   ` Wiles, Keith
2019-04-03 15:13   ` Bruce Richardson
2019-04-03 15:13     ` Bruce Richardson
2019-04-03 15:27   ` Stephen Hemminger
2019-04-03 15:27     ` Stephen Hemminger
2019-04-04 20:11 ` Thomas Monjalon
2019-04-04 20:11   ` Thomas Monjalon

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