[dpdk-dev] examples/ip_pipeline: fix buffer not null terminated

  The destination string may not have a null termination if
the source string's length is equal to the sizeof(pipeline->name).

Fix by replacing strncpy with strlcpy that guarantees NULL-termination.

Coverty issue: 272606
Fixes: d75c371e9b46 ("examples/ip_pipeline: add pipeline object")

Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
---
 examples/ip_pipeline/pipeline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

On Tue, Apr 17, 2018 at 02:28:25PM +0100, Jasvinder Singh wrote:
> The destination string may not have a null termination if
> the source string's length is equal to the sizeof(pipeline->name).
> 
> Fix by replacing strncpy with strlcpy that guarantees NULL-termination.
> 
> Coverty issue: 272606
> Fixes: d75c371e9b46 ("examples/ip_pipeline: add pipeline object")
> 
> Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>

Does this need an include of rte_string_fns.h?

In terms of the change itself:

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

> ---
>  examples/ip_pipeline/pipeline.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/examples/ip_pipeline/pipeline.c b/examples/ip_pipeline/pipeline.c
> index 76aa1d3..132f1a8 100644
> --- a/examples/ip_pipeline/pipeline.c
> +++ b/examples/ip_pipeline/pipeline.c
> @@ -129,7 +129,7 @@ pipeline_create(const char *name, struct pipeline_params *params)
>  	}
>  
>  	/* Node fill in */
> -	strncpy(pipeline->name, name, sizeof(pipeline->name));
> +	strlcpy(pipeline->name, name, sizeof(pipeline->name));
>  	pipeline->p = p;
>  	pipeline->n_ports_in = 0;
>  	pipeline->n_ports_out = 0;
> -- 
> 2.9.3
>
  

> -----Original Message-----
> From: Richardson, Bruce
> Sent: Tuesday, April 17, 2018 4:01 PM
> To: Singh, Jasvinder <jasvinder.singh@intel.com>
> Cc: dev@dpdk.org; Dumitrescu, Cristian <cristian.dumitrescu@intel.com>
> Subject: Re: [dpdk-dev] [PATCH] examples/ip_pipeline: fix buffer not null
> terminated
> 
> On Tue, Apr 17, 2018 at 02:28:25PM +0100, Jasvinder Singh wrote:
> > The destination string may not have a null termination if the source
> > string's length is equal to the sizeof(pipeline->name).
> >
> > Fix by replacing strncpy with strlcpy that guarantees NULL-termination.
> >
> > Coverty issue: 272606
> > Fixes: d75c371e9b46 ("examples/ip_pipeline: add pipeline object")
> >
> > Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
> 
> Does this need an include of rte_string_fns.h?
> 
> In terms of the change itself:
> 
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> 

It got reference of rte_string_fns.h through other header files there. So build was ok, but I will send v2 with explicit include. Thanks.