Re: [squid-users] External C program

On Thu, Apr 30, 2009 at 4:40 AM, Amos Jeffries <squid3_at_treenet.co.nz> wrote:
> Julien Philibin wrote:
>>
>> On Wed, Apr 29, 2009 at 11:15 PM, Amos Jeffries <squid3_at_treenet.co.nz>
>> wrote:
>>>>
>>>> Very interesting Bharath !!!
>>>>
>>> Yes thank you. You have identified the issue and we can now tell Julien
>>> exactly what he has to do.
>>>
>>>> What would be your advice to get my program working ?!
>>>>
>>> Use fgets(). The scan() family apparently do not handle EOF in the way
>>> needed.
>>>
>>> Thus to work your code must be:
>>>
>>>  char line[8196];
>>>  char ip[45];
>>>  char url[8196];
>>>
>>>  ip[0] = '\0';
>>>  url[0] = '\0';
>>>
>>>  while( fgets(line, 8196, stdin) != NULL ) {
>>>     snscanf(sbuf, 8196, "%s %s" ip, url);
>>>     // happy joy ....
>>>  }
>>>
>>> Amos
>>>
>>
>> Hey that's smart! :)
>>
>> I'm going to go for that and if things go wrong, I'll let you know ...
>
> It is slightly wrong. The sbuf there should be 'line'.
> I hope your compiler catches that also.
>

Yep I found it out :)

> And please do use snscanf instead of scanf. It will save you from many
> security and segfault bugs over your coding time.
>

You are talking about snscanf, but nor "man snscanf" nor google are
showing me revelant stuff about this function ... Am I missing
something ? I am using sscanf instead, for now ...

>>
>> Thank you everyone!
>>
>> btw: Amos, any idea why I get a randomly 127.0.0.1 instead of my real
>> Ip in the logs ?
>>
>
> As someone said earlier 127.0.0.1 is one of the IPs assigned to your
> machine. It is a special IPv4 address assigned as "localhost". Every machine
> with networking has that same IP for private non-Internet traffic use.
>
> Most machines will have two of these; 127.0.0.1 for IPv4 and ::1 for IPv6.
> They are identical in use and purpose for their own IP protocols.
>
>
> Why you get it randomly I don't know. I expect it to show up consistently
> for requests the OS identifies as local-machine only. And never for requests
> the OS thinks are remote global.
>
> If your testing uses localhost:3128 as the proxy it will connect to
> 127.0.0.1 privately. If it uses the public IP or name resolving to the
> public IP it will use a global public connections.
>

I am using the public IP address to access my proxy. I'll try to
remove the 127.0.0.1 from the hosts file and see how things go on ...

>
> Amos
> --
> Please be using
>  Current Stable Squid 2.7.STABLE6 or 3.0.STABLE14
>  Current Beta Squid 3.1.0.7
>

Thank you everyone again for your time, and sorry for the delay in
getting back to you, I've been doing some researches and making my
hands dirty with my external helpers all week long!

Julien
Received on Sat May 02 2009 - 00:35:07 MDT