[LTP] [PATCH v6 2/3] Add tst_secureboot_enabled() helper function

[Cyril Hrubis <chrubis@suse.cz>]

Hi!
> +int tst_secureboot_enabled(void)
> +{
> +	int fd;
> +	char data[5];
> +
> +	if (access(EFIVAR_SECUREBOOT, F_OK)) {
> +		tst_res(TINFO, "Efivar FS not available");
> +		return -1;
> +	}
> +
> +	fd = open(EFIVAR_SECUREBOOT, O_RDONLY);
> +
> +	if (fd == -1) {
> +		tst_res(TINFO | TERRNO,
> +			"Cannot open SecureBoot Efivar sysfile");
> +		return -1;
> +	} else if (fd < 0) {
> +		tst_brk(TBROK | TERRNO, "Invalid open() return value %d", fd);
> +		return -1;
> +	}

If we change the access() above to R_OK we can just do SAFE_OPEN() here, right?

Other than this the code looks good.

-- 
Cyril Hrubis
chrubis@suse.cz