On 30 October 2012 16:57, Okan Demirmen <[email protected]> wrote:
> On Tue, Oct 30, 2012 at 11:53 AM, Christiano F. Haesbaert
> <[email protected]> wrote:
>> On 30 October 2012 16:52, Christiano F. Haesbaert
>> <[email protected]> wrote:
>>> On 30 October 2012 16:45, Okan Demirmen <[email protected]> wrote:
>>>> On Tue, Oct 30, 2012 at 10:32 AM, Christiano F. Haesbaert
>>>> <[email protected]> wrote:
>>>>> On 30 October 2012 15:03, Christiano F. Haesbaert
>>>>> <[email protected]> wrote:
>>>>>> On 30 October 2012 15:00, Mike Belopuhov <[email protected]> wrote:
>>>>>>> On Tue, Oct 30, 2012 at 2:58 PM, Christiano F. Haesbaert
>>>>>>> <[email protected]> wrote:
>>>>>>>> On 30 October 2012 14:36, rustyBSD <[email protected]> wrote:
>>>>>>>>> MMmhh...
>>>>>>>>>
>>>>>>>>> == /usr/src/usr.bin/mg/dired.c ==
>>>>>>>>> Go look the line 729:
>>>>>>>>>
>>>>>>>>>     if ((fopen(dname,"r")) == NULL) {
>>>>>>>>>         ...
>>>>>>>>>
>>>>>>>>> Now you can cry
>>>>>>>>>
>>>>>>>>
>>>>>>>> What is your point ?
>>>>>>>>
>>>>>>>
>>>>>>> you leak a FILE object and a descriptor.
>>>>>>
>>>>>> Aww jesus, completely missed it !
>>>>>
>>>>> So that was just to check permission:
>>>>>
>>>>> ==
>>>>> http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/mg/dired.c.diff?r1=1.45;r2=1.46
>>>>>
>>>>> From the Loganaden Velvindron:
>>>>>  Make dired more sane (and emacslike):
>>>>>  *  Position cursor at first filename after ..
>>>>>  *  Don't reposition cursor on reopening
>>>>>  *  Check for permission before attempting to open directory
>>>>>
>>>>> I took forever to get this in. Thanks, Logan for being patient!
>>>>> ==
>>>>>
>>>>> That should be an access(2) call.
>>>>>
>>>>
>>>> or stat(2) due to tctu.
>>>
>>> I believe in that case it would be the same, since there is still a
>>> window between stat(2)/access(2) and open(2).
>>
>> I mean, considering he would open/stat/close and open again.
>
> I didn't actually look at the code; I just noticed the words
> permission and access(2) and hit reply :)
>
> Cheers.

Today is definately not my day, forgot that stat takes a path and not an fd.

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