[apparmor] [PATCH 2/5] Add the ability to read proc attr interfaces

[John Johansen]

On 07/21/2011 06:57 PM, Kees Cook wrote:
> Hi John,
>
> On Thu, Jul 21, 2011 at 11:16:35AM -0700, John Johansen wrote:
>> +int aa_getprocattr(pid_t tid, const char *attr, char **buf, char **mode)
>> +{
>> +	int rc, size = INITIAL_GUESS_SIZE/2;
>> +	char *buffer = NULL;
>
> How about doing a buf!=NULL test here just to be extra defensive?
>
sure we can throw in


	if (!buf) {
		errno = EINVAL;
		return -1;
	}