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<p style="margin-top:0;margin-bottom:0">Hi Dmitry,</p>
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<p style="margin-top:0;margin-bottom:0">Thanks a heap, you are correct.</p>
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<p style="margin-top:0;margin-bottom:0">The process does disappear after the incorrect password.</p>
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<div>10> process_info(H).</div>
<div>undefined</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> erlang-questions-bounces@erlang.org <erlang-questions-bounces@erlang.org> on behalf of Dmitry Klionsky <dm.klionsky@gmail.com><br>
<b>Sent:</b> Friday, 29 June 2018 10:14 PM<br>
<b>To:</b> erlang-questions@erlang.org<br>
<b>Subject:</b> Re: [erlang-questions] eldap hangs</font>
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<p>The wrong password call raised an exception and the process behind H (<0.131.0> is dead.
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<p>And I think this is the reason of hang.</p>
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<p>You can start your session with <br>
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<p>> catch_exception(true). <br>
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<p>This is catch exceptions and your H will survive the crash and should work.</p>
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<div class="x_moz-cite-prefix">On 06/29/2018 03:07 PM, Technion wrote:<br>
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<p style="margin-top:0; margin-bottom:0">Hi,</p>
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<p style="margin-top:0; margin-bottom:0">I seem to have a replicable hang in the eldap module. Allow me to start with a working example. If it matters, the LDAP server is a Samba4 AD server. Before anyone asks, these are throw away passwords.</p>
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<div>Erlang/OTP 21 [erts-10.0] [source] [64-bit] [smp:1:1] [ds:1:1:10] [async-threads:1] [hipe]</div>
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<div>Eshell V10.0 (abort with ^G)</div>
<div>1> ===> The rebar3 shell is a development tool; to deploy applications in production, consider using releases (<a class="x_moz-txt-link-freetext OWAAutoLink" href="http://www.rebar3.org/docs/releases" id="LPlnk49543" previewremoved="true">http://www.rebar3.org/docs/releases</a>)</div>
<div>===> Booted p3</div>
<div>===> Booted sasl</div>
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<div>1> {ok, H} = eldap:open(["127.0.0.1"], [{port, 1636}, {ssl, true}, {timeout, 500}]).</div>
<div>{ok,<0.131.0>}</div>
<div>2> ok = eldap:simple_bind(H, <a class="x_moz-txt-link-rfc2396E OWAAutoLink" href="mailto:Kevin@ad.lolware.net" id="LPlnk981108" previewremoved="true">
"Kevin@ad.lolware.net"</a>, "Kevin111").</div>
<div>ok</div>
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<div>So we definitely have of using this. Now let's see what happens in a new session if we first get the username wrong, then try it correctly:</div>
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<div>1> {ok, H} = eldap:open(["127.0.0.1"], [{port, 1636}, {ssl, true}, {timeout, 500}]).</div>
<div>{ok,<0.131.0>}</div>
<div>2> ok = eldap:simple_bind(H, "Kevin", "Kevin111").</div>
<div>** exception error: no match of right hand side value {error,invalidCredentials}</div>
<div>3> ok = eldap:simple_bind(H, <a class="x_moz-txt-link-rfc2396E OWAAutoLink" href="mailto:Kevin@ad.lolware.net" id="LPlnk593276" previewremoved="true">
"Kevin@ad.lolware.net"</a>, "Kevin111").</div>
<div><indefinite hang></div>
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Given I'm trying to build an interface where users can enter their own username, well it creates an easily hung session. The docs describe a timeout on open/2 but it obviously doesn't apply to everything. Given I"m not seeing any output at all I have no real
idea where to debug this.
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<p style="margin-top:0; margin-bottom:0">Any assistance appreciated.</p>
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<pre class="x_moz-signature" cols="72">--
BR,
Dmitry
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