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<tt>Hi Ben<br>
<br>
<tt>Thanks for <tt>more testing :). I <tt>man<tt>aged to <tt>identify
the <tt>bug for this crash - even if the regexp is
bogus, <tt>opensips <tt>should not crash. See<br>
<tt>
<a class="moz-txt-link-freetext" href="https://github.com/OpenSIPS/opensips/commit/37eab9a8c2dd19a17f2617057ca2014e9ffee263">https://github.com/OpenSIPS/opensips/commit/37eab9a8c2dd19a17f2617057ca2014e9ffee263</a><br>
<br>
<tt>Regards,</tt><br>
</tt></tt></tt></tt></tt></tt></tt></tt></tt></tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Summit 2018
<a class="moz-txt-link-freetext" href="http://www.opensips.org/events/Summit-2018Amsterdam">http://www.opensips.org/events/Summit-2018Amsterdam</a>
</pre>
<div class="moz-cite-prefix">On 02/27/2018 09:47 PM, Ben Newlin
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:478773D5-3955-4A6A-BA6F-15467E39CC29@genesys.com">
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<p class="MsoNormal"><span style="font-size:11.0pt">Bogdan,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I found this
previous thread that has this error:
</span><a
href="http://lists.opensips.org/pipermail/users/2016-October/035635.html"
target="_blank" moz-do-not-send="true"><span
style="font-size:10.5pt;font-family:"Helvetica
Neue";color:#4C4C4C;background:white">http://lists.opensips.org/pipermail/users/2016-October/035635.html</span></a><span
style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The fix
suggested there worked. When I removed the quotes around the
regexp used in re.subst the crash did not occur.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span
style="color:black">Ben Newlin
<a class="moz-txt-link-rfc2396E" href="mailto:Ben.Newlin@genesys.com"><Ben.Newlin@genesys.com></a><br>
<b>Date: </b>Tuesday, February 27, 2018 at 2:20 PM<br>
<b>To: </b>Bogdan-Andrei Iancu
<a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a>, OpenSIPS users mailling list
<a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on
200 OK<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">Bogdan,</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I just
tested it and that crash is no longer occurring. However I
am now seeing a different crash, but it seems to still be
related to regexp.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [369] ERROR:core:subst_parser: string too short</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [369] ERROR:core:tr_eval_re: Can't compile regexp</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [369] WARNING:core:do_assign: no value in right
expression at /opensips/control.cfg:1952</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [361] <a class="moz-txt-link-freetext" href="INFO:core:handle_sigs">INFO:core:handle_sigs</a>: child process 369
exited by a signal 11</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [361] <a class="moz-txt-link-freetext" href="INFO:core:handle_sigs">INFO:core:handle_sigs</a>: core was generated</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Feb 27
19:07:17 [361] <a class="moz-txt-link-freetext" href="INFO:core:handle_sigs">INFO:core:handle_sigs</a>: terminating due to
SIGCHLD</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The
do_assign error makes it seem like there may be something
wrong in my script, but I can’t see what it is. And I’m not
sure what the “string too short” error is either or why the
regexp could not be compiled. It looks valid to me.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Backtrace:
<a class="moz-txt-link-freetext" href="https://pastebin.com/Fk2BRnsg">https://pastebin.com/Fk2BRnsg</a></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span
style="color:black">Bogdan-Andrei Iancu
<a class="moz-txt-link-rfc2396E" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a><br>
<b>Date: </b>Tuesday, February 27, 2018 at 12:55 PM<br>
<b>To: </b>OpenSIPS users mailling list
<a class="moz-txt-link-rfc2396E" href="mailto:users@lists.opensips.org"><users@lists.opensips.org></a>, Ben Newlin
<a class="moz-txt-link-rfc2396E" href="mailto:Ben.Newlin@genesys.com"><Ben.Newlin@genesys.com></a><br>
<b>Subject: </b>Re: [OpenSIPS-Users] OpenSIPS crashing on
200 OK</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
</div>
<p class="MsoNormal"><a name="_MailOriginalBody"
moz-do-not-send="true"><tt><span style="font-size:10.0pt">Hi
Ben,</span></tt></a><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:10.0pt;font-family:"Courier
New""><br>
<br>
<tt>I just committed the fix for this - could you update
from GIT and give it a new try ?</tt><br>
<br>
<tt>Thanks and regards,</tt><br>
<br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<div>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody">On 02/27/2018 06:19
PM, Bogdan-Andrei Iancu wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><tt><span
style="font-size:10.0pt">Thanks Ben for the support in
investigating this. The bug was identified and
confirm, let me work on a fix right now. I will
shortly ping you for testing ;)</span></tt></span><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:10.0pt;font-family:"Courier
New""><br>
<br>
<tt>Regards,</tt><br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<div>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody">On 02/27/2018
12:12 AM, Bogdan-Andrei Iancu wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><tt><span
style="font-size:10.0pt">OK, to be more precise, the
crash is around an "If" statement where you have in
the condition an REGEXP test (=~) with a left
operand translated into "downstream" (maybe a
$DLG_dir ??).</span></tt></span><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:10.0pt;font-family:"Courier
New""><br>
<tt>Does it sound familiar to you :) ?</tt><br>
<br>
<tt>Regards,</tt><br>
<br>
<br>
</span><o:p></o:p></span></p>
<pre><span style="mso-bookmark:_MailOriginalBody">Bogdan-Andrei Iancu<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> <o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Founder and Developer<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips-solutions.com" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips-solutions.com</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody">OpenSIPS Summit 2018<o:p></o:p></span></pre>
<pre><span style="mso-bookmark:_MailOriginalBody"> </span><a href="http://www.opensips.org/events/Summit-2018Amsterdam" moz-do-not-send="true"><span style="mso-bookmark:_MailOriginalBody">http://www.opensips.org/events/Summit-2018Amsterdam</span><span style="mso-bookmark:_MailOriginalBody"></span></a><span style="mso-bookmark:_MailOriginalBody"><o:p></o:p></span></pre>
<div>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody">On 02/26/2018
11:32 PM, Ben Newlin wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt">Yes, that is from that
exact file, line 435. It’s just a return statement.
I can send you the file off-list if you’d like.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt"> </span><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt">I do use the $DLG_dir in my
script in a few places, but the only one this crash
would have hit is in some logging.</span><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt"> </span><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt">Ben Newlin</span><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt"> </span><o:p></o:p></span></p>
</blockquote>
</blockquote>
</blockquote>
<p class="MsoNormal"><span
style="mso-bookmark:_MailOriginalBody"><span
style="font-size:11.0pt"><br>
<br>
<br>
</span><o:p></o:p></span></p>
</div>
</blockquote>
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