[Users] OpenSER crashes when attempting to use null avp variable

[Daniel-Constantin Mierla]

Hello,

On 03/23/07 13:59, Asterisk Expert wrote:
> Hello Daniel,
> I just figured out. I forgot to set db url for avpops :))
> But in this case openser should not start and give error. not?
does now, thanks for reporting (just committed on svn).
> Instead it started and when executed mysql query, it crashed.
> I have one more query. I read that if we set onreply_avp_mode=1 in tm 
> module, we can access avp variables in reply routes. I have done the 
> same. I set some avp value in request route and update mysql db based 
> on that value in reply route but I'm getting null :(
> What do you think will be the problem?
I will check it.

Cheers,
Daniel

>
>
> On 3/23/07, *Daniel-Constantin Mierla* <daniel at voice-system.ro 
> <mailto:daniel at voice-system.ro> > wrote:
>
>     Hello,
>
>     i tried to reproduce, but I got no same result. If the avp is
>     null, the
>     returned values is false in comparisons.
>
>     Could you send log messages and backtrace?
>
>     Cheers,
>     Daniel
>
>
>     On 03/23/07 10:37, Asterisk Expert wrote:
>     > Hello,
>     > I'm using openser 1.2.0 . I have following section in my
>     openser.cfg.
>     >
>     > avp_db_query("SELECT active, accountcode FROM openser_ip_auth WHERE
>     > ip_addr='$src_ip'","$avp(s:active);$avp(s:accountcode)");
>     >         xlog("L_INFO", "\n$avp(s:active):::$avp(s:accountcode)\n");
>     >         if (!avp_check("$avp(s:active)","eq/1/I"))
>     >         {
>     >             xlog("L_ERR", "$si [$Tf]: $rm $fu -> $ru: REGISTER: bad
>     > credentials, ask for credentials\n");
>     >
>     >             #authentication failed
>     >             www_challenge("", "0");
>     >             setflag(1);
>     >             return;
>     >         }
>     > Basically I'm doing IP based authentication. I have used the similar
>     > method in version 1.1 but openser 1.2.0 crashes if the query in
>     > avp_db_query returns no rows which keeps those two avp variables
>     null.
>     > Is this a bug or I'm doing something wrong?
>     > I also tried "==" operator for comparison but it crashes whenever it
>     > is trying to access one of those two variables.
>     > --
>     > Regards
>     > Ruchir Brahmbhatt
>     > Ecosmob Technologies
>     >
>     ------------------------------------------------------------------------
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>
>
>
> -- 
> Regards
> Ruchir Brahmbhatt