[LTP] [PATCH 2/2] syscalls/splice05: check if splice supports stream af_unix sockets

[Xiao Yang <yangx.jy@cn.fujitsu.com>]

Hi,

I have modified it and will send the v2 patch.

Thanks,
Xiao Yang
On 2017/06/08 14:41, Xiao Yang wrote:
> On some older kernel(e.g, 3.10.0), test result should be TCONF instead
> of TFAIL when splice does not support stream af_unix sockets as input.
>
> This implement is introduced in kernel:
> '2b514574f7e8(net: af_unix: implement splice for stream af_unix sockets)'
>
> Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
> ---
>  testcases/kernel/syscalls/splice/splice05.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/testcases/kernel/syscalls/splice/splice05.c b/testcases/kernel/syscalls/splice/splice05.c
> index d7edf8d..b65df4b 100644
> --- a/testcases/kernel/syscalls/splice/splice05.c
> +++ b/testcases/kernel/syscalls/splice/splice05.c
> @@ -24,6 +24,7 @@
>   */
>  
>  #define _GNU_SOURCE
> +#include <errno.h>
>  #include <sys/types.h>
>  #include <sys/socket.h>
>  #include <sys/stat.h>
> @@ -90,6 +91,11 @@ static void pipe_socket(void)
>  	for (i = num_len_data; i > 0; i = i - ret) {
>  		ret = splice(sv[1], 0, pp2[1], NULL, i, 0);
>  		if (ret == -1) {
> +			if (errno == EINVAL) {
> +				tst_res(TCONF | TERRNO, "splice doesn't "
> +					"support stream af_unix sockets");
> +				goto exit;
> +			}
>  			tst_res(TFAIL | TERRNO, "splice error");
>  			goto exit;
>  		}