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

[Singh, Jasvinder]

> -----Original Message-----
> From: Pattan, Reshma
> Sent: Wednesday, April 18, 2018 5:58 PM
> To: dev at dpdk.org
> Cc: Singh, Jasvinder <jasvinder.singh at intel.com>; Pattan, Reshma
> <reshma.pattan at intel.com>
> Subject: [PATCH] examples/ip_pipeline: fix buffer not null terminated
> 
> Copying source string of length equal to sizeof(kni->name) will not append the
> NULL to destination string.
> 
> Using strlcpy in place of strncpy fixes this issue as strlcpy guarantees NULL
> termination.
> 
> Coverity issue: 272562
> Fixes: 9a408cc8ac ("examples/ip_pipeline: add KNI object")
> CC: jasvinder.singh at intel.com
> 
> Signed-off-by: Reshma Pattan <reshma.pattan at intel.com>
> ---
>  examples/ip_pipeline/kni.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/examples/ip_pipeline/kni.c b/examples/ip_pipeline/kni.c index
> ed5f8942e..7e5ff0543 100644
> --- a/examples/ip_pipeline/kni.c
> +++ b/examples/ip_pipeline/kni.c
> @@ -7,6 +7,7 @@
> 
>  #include <rte_ethdev.h>
>  #include <rte_bus_pci.h>
> +#include <rte_string_fns.h>
> 
>  #include "kni.h"
>  #include "mempool.h"
> @@ -153,7 +154,7 @@ kni_create(const char *name, struct kni_params
> *params)
>  		return NULL;
> 
>  	/* Node fill in */
> -	strncpy(kni->name, name, sizeof(kni->name));
> +	strlcpy(kni->name, name, sizeof(kni->name));
>  	kni->k = k;
> 
>  	/* Node add to list */
> --
> 2.14.3

Reviewed-by: Jasvinder Singh <jasvinder.singh at intel.com>