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• ld: symbol(s) not found with OpenSSL (libssl)

  - by Benjamin

  Hi all, I'm trying to build TorTunnel on my mac. I've successfully installed the Boost library and its development files. TorTunnel also requires the OpenSSL and its development files. I've got them installed in /usr/lib/libssl.dylib and /usr/include/openssl/. When I run the make command this is the error i'm getting: g++ -ggdb -g -O2 -lssl -lboost_system-xgcc42-mt-1_38 -o torproxy TorProxy.o HybridEncryption.o Connection.o Cell.o Directory.o ServerListing.o Util.o Circuit.o CellEncrypter.o RelayCellDispatcher.o CellConsumer.o ProxyShuffler.o CreateCell.o CreatedCell.o TorTunnel.o SocksConnection.o Network.o Undefined symbols: "_BN_hex2bn", referenced from: Circuit::initializeDhParameters() in Circuit.o "_BN_free", referenced from: Circuit::~Circuit()in Circuit.o Circuit::~Circuit()in Circuit.o CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o "_DH_generate_key", referenced from: Circuit::initializeDhParameters() in Circuit.o "_PEM_read_bio_RSAPublicKey", referenced from: ServerListing::getOnionKey() in ServerListing.o "_BIO_s_mem", referenced from: Connection::initializeSSL() in Connection.o Connection::initializeSSL() in Connection.o "_DH_free", referenced from: Circuit::~Circuit()in Circuit.o "_BIO_ctrl_pending", referenced from: Connection::writeFromBuffer(boost::function)in Connection.o "_RSA_size", referenced from: HybridEncryption::encryptInSingleChunk(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o HybridEncryption::encryptInHybridChunk(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o HybridEncryption::encrypt(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o "_RSA_public_encrypt", referenced from: HybridEncryption::encryptInSingleChunk(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o HybridEncryption::encryptInHybridChunk(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o "_BN_num_bits", referenced from: CreateCell::CreateCell(unsigned short, dh_st*, rsa_st*)in CreateCell.o CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o CreatedCell::isValid() in CreatedCell.o "_SHA1", referenced from: CellEncrypter::expandKeyMaterial(unsigned char*, int, unsigned char*, int)in CellEncrypter.o "_BN_bn2bin", referenced from: CreateCell::CreateCell(unsigned short, dh_st*, rsa_st*)in CreateCell.o "_BN_bin2bn", referenced from: CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o "_DH_compute_key", referenced from: CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o "_BIO_new", referenced from: Connection::initializeSSL() in Connection.o Connection::initializeSSL() in Connection.o "_BIO_new_mem_buf", referenced from: ServerListing::getOnionKey() in ServerListing.o "_AES_ctr128_encrypt", referenced from: HybridEncryption::AES_encrypt(unsigned char*, int, unsigned char*, unsigned char*, int)in HybridEncryption.o CellEncrypter::aesOperate(Cell&, aes_key_st*, unsigned char*, unsigned char*, unsigned int*)in CellEncrypter.o "_BIO_read", referenced from: Connection::writeFromBuffer(boost::function)in Connection.o "_SHA1_Update", referenced from: CellEncrypter::calculateDigest(SHAstate_st*, RelayCell&, unsigned char*)in CellEncrypter.o CellEncrypter::initKeyMaterial(unsigned char*)in CellEncrypter.o CellEncrypter::initKeyMaterial(unsigned char*)in CellEncrypter.o "_SHA1_Final", referenced from: CellEncrypter::calculateDigest(SHAstate_st*, RelayCell&, unsigned char*)in CellEncrypter.o "_DH_size", referenced from: CreatedCell::getKeyMaterial(unsigned char**, unsigned char**)in CreatedCell.o "_DH_new", referenced from: Circuit::initializeDhParameters() in Circuit.o "_BIO_write", referenced from: Connection::readIntoBufferComplete(boost::function, boost::system::error_code const&, unsigned long)in Connection.o "_RSA_free", referenced from: Circuit::~Circuit()in Circuit.o "_BN_dup", referenced from: Circuit::initializeDhParameters() in Circuit.o Circuit::initializeDhParameters() in Circuit.o "_BN_new", referenced from: Circuit::initializeDhParameters() in Circuit.o Circuit::initializeDhParameters() in Circuit.o "_SHA1_Init", referenced from: CellEncrypter::CellEncrypter()in CellEncrypter.o CellEncrypter::CellEncrypter()in CellEncrypter.o "_RAND_bytes", referenced from: HybridEncryption::encryptInHybridChunk(unsigned char*, int, unsigned char**, int*, rsa_st*)in HybridEncryption.o Util::getRandomId() in Util.o "_AES_set_encrypt_key", referenced from: HybridEncryption::AES_encrypt(unsigned char*, int, unsigned char*, unsigned char*, int)in HybridEncryption.o CellEncrypter::initKeyMaterial(unsigned char*)in CellEncrypter.o CellEncrypter::initKeyMaterial(unsigned char*)in CellEncrypter.o "_BN_set_word", referenced from: Circuit::initializeDhParameters() in Circuit.o "_RSA_new", referenced from: ServerListing::getOnionKey() in ServerListing.o ld: symbol(s) not found collect2: ld returned 1 exit status make: *** [torproxy] Error 1 Any idea how I could fix it?

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• Visualizing an AST created with ANTLR (in a .Net environment)

  - by Benjamin Podszun

  Hi there. For a pet project I started to fiddle with ANTLR. After following some tutorials I'm now trying to create the grammar for my very own language and to generate an AST. For now I'm messing around in ANTLRWorks mostly, but now that I have validated that the parse tree seems to be fine I'd like to (iteratively, because I'm still learning and still need to make some decisions regarding the final structure of the tree) create the AST. It seems that antlrworks won't visualize it (or at least not using the "Interpreter" feature, Debug's not working on any of my machines). Bottom line: Is the only way to visualize the AST the manual way, traversing/showing it or printing the tree in string representation to a console? What I'm looking for is a simple way to go from input, grammar - visual AST representation a la the "Interpreter" feature of ANTLRWorks. Any ideas?

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• PHP gallery, thumbnail listing

  - by Benjamin

  Hi everyone, I am planning a dynamic PHP photo gallery and having difficulty deciding on the best way to display the thumbnails after they have been retrieved via MySQL. I considered using an inline unordered list but this resulted in the thumbs being stacked one on top of the other (touching). Also tried a table but not sure how I would start the next row after x number of thumbnails. Any suggestions on page layout for this purpose? I will be using Lightbox to cycle through the photos themselves, that isn't the issue. Also, would a while() loop be best for fetching the list of thumbs and inserting the appropriate HTML? Thanks! -Ben

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• Perl script -need some help.

  - by benjamin button

  I have an sql file which will give me an output like below: 10|1 10|2 10|3 11|2 11|4 . . . I am using this in a perl script like below: my @tmp_cycledef = `sqlplus -s $connstr \@DLCycleState.sql`; after this above statement,since tmp_cycledef has all the output of the sql query i want to show the output as: 10 1,2,3 11 2,4 how could i do this using perl?

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• Populating fields in modal form using PHP, jQuery

  - by Benjamin

  I have a form that adds links to a database, deletes them, and -- soon -- allows the user to edit details. I am using jQuery and Ajax heavily on this project and would like to keep all control in the same page. In the past, to handle editing something like details about another website (link entry), I would have sent the user to another PHP page with form fields populated with PHP from a MySQL database table. How do I accomplish this using a jQuery UI modal form and calling the details individually for that particular entry? Here is what I have so far- <?php while ($linkDetails = mysql_fetch_assoc($getLinks)) {?> <div class="linkBox ui-corner-all" id="linkID<?php echo $linkDetails['id'];?>"> <div class="linkHeader"><?php echo $linkDetails['title'];?></div> <div class="linkDescription"><p><?php echo $linkDetails['description'];?></p> <p><strong>Link:</strong><br/> <span class="link"><a href="<?php echo $linkDetails['url'];?>" target="_blank"><?php echo $linkDetails['url'];?></a></span></p></div> <p align="right"> <span class="control"> <span class="delete addButton ui-state-default">Delete</span> <span class="edit addButton ui-state-default">Edit</span> </span> </p> </div> <?php }?> And here is the jQuery that I am using to delete entries- $(".delete").click(function() { var parent = $(this).closest('div'); var id = parent.attr('id'); $("#delete-confirm").dialog({ resizable: false, modal: true, title: 'Delete Link?', buttons: { 'Delete': function() { var dataString = 'id='+ id ; $.ajax({ type: "POST", url: "../includes/forms/delete_link.php", data: dataString, cache: false, success: function() { parent.fadeOut('slow'); $("#delete-confirm").dialog('close'); } }); }, Cancel: function() { $(this).dialog('close'); } } }); return false; }); Everything is working just fine, just need to find a solution to edit. Thanks!

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• Which full-text search package should I use for SQLite3?

  - by Benjamin Pollack

  SQLite3 appears to come with three different full-text search engines, called FTS1, FTS2, and FTS3. The documentation available on the website mentions that FTS1 is stable, FTS2 is in development, and that you should use FTS2. Examples I find online use FTS3, which is in CVS, and not documented versus FTS2. None of the full-text search engines come with the amalgamated source, as near as I can tell. So, my question: which of these three engines, if any, should I use for full-text indexing in SQLite? Or should I simply use a third-party tool like Sphinx, or a custom solution in Lucene, instead?

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• How can I run NUnit(Selenium Grid) tests in parallel?

  - by Benjamin Lee

  My current project uses NUnit for unit tests and to drive UATs written with Selenium. Developers normally run tests using ReSharper's test runner in VS.Net 2003 and our build box kicks them off via NAnt. We would like to run the UAT tests in parallel so that we can take advantage of Selenium Grid/RCs so that they will be able to run much faster. Does anyone have any thoughts on how this might be achieved? and/or best practices for testing Selenium tests against multiple browsers environments without writing duplicate tests automatically? Thank you.

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• Perl open call failing.

  - by benjamin button

  I am new to perl coding. I am facing a problem while executing a small script i have: open is not able to find the file which i am giving as an argument.Please see below: File is available: ls -l DLmissing_months.sql -rwxr-xr-x 1 tlmwrk61 aimsys 2842 May 16 09:44 DLmissing_months.sql My perl script: #!/usr/local/bin/perl use strict; use warnings; my $this_line = ""; my $do_next = 0; my $file_name = $ARGV[0]; open( my $fh, '<', '$file_name') or die "Error opening file - $!\n"; close($fh); executing the perl script : > new.pl DLmissing_months.sql Error opening file - No such file or directory what is the problem with my perl script.

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• VirtualTreeView add roots with Threads

  - by Benjamin Weiss

  I would like to add roots to a VirtualTreeView http://www.delphi-gems.com/index.php/controls/virtual-treeview with a thread like this: function AddRoot ( p : TForm1 ) : Integer; stdcall; begin p.VirtualStringTree1.AddChild(NIL); end; var Dummy : DWORD; i : Integer; begin for i := 0 to 2000 do begin CloseHandle(CreateThread(NIL,0, @ADDROOT, Self,0, Dummy)); end; end; The reason for this is that I want to add all connections from my INDY Server to the TreeView. Indy's onexecute/onconnect get's called as a thread. So if 3+ connections come in at the same time the app crashes due to the TreeView. Same is if a client gets disconnected and I want to delete the Node. I am using Delphi7 and Indy9 Any Idea how to fix that?

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• viewing the updated data in a file

  - by benjamin button

  If i have file for eg: a log file created by any background process on unix, how do i view the data that getting updated each and every time. i know that i can use tail command to see the file.but let's say i have used tail -10 file.txt it will give the last 10 lines.but if lets say at one time 10 lines got added and at the next instance it has been added 2 lines. now from the tail command i can see previous 8 lines also.i don't want this.i want only those two lines which were added. In short i want to view only those lines which were appended.how can i do this?

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• Problem with late binding!

  - by benjamin button

  Hi everyone, i was asked this question in an interview. late binding is dynamically identifying the symbol during the runtime as far as my knowledge is concerned.please correct me if i am wrong. i was asked a question like what are some of the problem that we would face when we use late binding in c++. i was actually out of my own ideas about that. could you please share the problems you might have faced during your professional life. thanks.

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• jquery anchor to html extract

  - by Benjamin Ortuzar

  I would like to implement something similar to the Google quick scroll extension with jquery for the extracts of a search result, so when the full document is opened (within the same website) it gives the user the opportunity to go straight to the extract location. Here is a sample of what I get returned from the search engine when I search for 'food'. <doc> <docid>129305</docid> <title><span class='highlighted'>Food</span></title> <summary> <summarytext>Papers subject to Negative Resolution: 4 <span class='highlighted'>Food</span> <span class='highlighted'>Food</span> Irradiation (England) Regulations 2009 (S.I., 2009, No. 1584), dated 24 June 2009 (by Act), </summarytext> </summary> <paras> <paraitemcount>2</paraitemcount> <para> <paraitem>1</paraitem> <paraid>42</paraid> <pararelevance>100</pararelevance> <paraweights>50</paraweights> <paratext>4 <span class='highlighted'>Food</span></paratext> </para> <para> <paraitem>2</paraitem> <paraid>54</paraid> <pararelevance>100</pararelevance> <paraweights>50</paraweights> <paratext><span class='highlighted'>Food</span> Irradiation (England) Regulations 2009 (S.I., 2009, No. 1584), dated 24 June 2009 (by Act), with an Explanatory Memorandum and an Impact Assessment (</paratext> </para> </paras> </doc> As you see the search engine has returned a document that contains one summary and two extracts. So let's say the user clicks on the second extract in the search resutls page, the browser would open the detailed document in the same website, and would offer the user the possibility to go to the extract as the Google quick scroll extension does. Is there an existing jquery script for this? If not, can you suggest any jquery/javascript code that would simplify my task to implement this. Notes: I can access the extracts from the document details page. I'm aware that the HTML in some cases could be slightly different in the extract than in the details page, finding no match. The search engine does not return where the extract was located. At the moment I'm trying to understand the JS code that the extension uses.

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• Printing the exact content of a text file in java

  - by Benjamin

  I want to print the content of a simple text file in java exactly the way the text appears in the text file. The print out has the same content as the text file but the format is not the same. tabs and line breaks are ignored in the print out. Any help will be very much appreciated.

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• Printing the exact content of a text file in java

  - by Benjamin

  I want to print the content of a simple text file in java exactly the way the text appears in the text file. The print out has the same content as the text file but the format is not the same. tabs and line breaks are ignored in the print out. Any help will be very much appreciated.

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• Core dump of a multithreaded program

  - by benjamin button

  Hi, i have regularly worked with single threaded programs. i never saw a multithreded program crashing since i havent worked on any. is there any difference between both teh core dumps? is there any additional information provided in the core dump of a multithreaded program when compared to a single threaded program?

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• parse search string

  - by Benjamin Ortuzar

  I have search strings, similar to the one bellow: energy food "olympics 2010" Terrorism OR "government" OR cups NOT transport and I need to parse it with PHP5 to detect if the content belongs to any of the following clusters: AllWords array AnyWords array NotWords array These are the rules i have set: If it has OR before or after the word or quoted words if belongs to AnyWord. If it has a NOT before word or quoted words it belongs to NotWords If it has 0 or more more spaces before the word or quoted phrase it belongs to AllWords. So the end result should be something similar to: AllWords: (energy, food, "olympics 2010") AnyWords: (terrorism, "government", cups) NotWords: (Transport) What would be a good way to do this?

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• what is wrong with this shell script

  - by benjamin button

  market_l="${echo $1 | awk '{print tolower($0)}'}" echo $market_l when i execute this its giving me an error below: ./test: market_l="${echo $1 | awk '{print tolower($0)}'}": The specified substitution is not valid for this command.

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• doubleton pattern in C++

  - by benjamin button

  I am aware of the singleton pattern in C++. but what is the logic to get two instances of the object? is there any such pattern where we could easily get 2 pattern. for the logic i could think of is that i can change the singleton pattern itself to have two objects created inside the class.this works. but if the requirement grows like if i need only 3 or only 4 what is the deswign pattern that i could think of to qualify such requirement?

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• Crazy interview question

  - by benjamin button

  I was asked this crazy question. I was out of my wits. Can a method in base class which is declared as virtual be called using the base class pointer which is pointing to a derived class object? Is this possible?

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• Is there a boolean literal in SQLite?

  - by Benjamin Oakes

  I know about the boolean column type, but is there a boolean literal in SQLite? In other languages, this might be true or false. Obviously, I can use 0 and 1, but I tend to avoid so-called "magic numbers" where possible. From this list, it seems like it might exist in other SQL implementations, but not SQLite. (I'm using SQLite 3.6.10, for what it's worth.)

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• Circular linked list

  - by benjamin button

  In case of Linked list, how do we identify whether it is a circular linked list? what is the check we have to do for a given linked list to check whether its circular?

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• Next track or shuffle in M3U playlist?

  - by Benjamin Oakes

  I have a M3U playlist that has URLs for some MP3s around the web. It's on a server so I can open it on other computers and my iPhone. Unfortunately, all the players I've tried don't let me hit the "next" button to go to the next song in the playlist. Is there a way to specify that ability in the M3U file? Or, if not that, can I make a media player automatically shuffle the playlist? I could always make a script to shuffle it myself, but I'd like to use something built into M3U if it exists.

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• jQuery multiple running totals

  - by Benjamin Randal

  0I am using jQuery to calculate a running total on multiple textboxes. Just found an awesome response on how to get that working a few days ago, but now I am running into another problem. When using one selector, the total for GetTotal is calculated perfectly. However, when I include the second selector, the totals begin to conflict with one another, and no longer calculate properly. I have been searching for a solution to this for some time now, does anyone have any ideas? Here is the selector i am currently using: function GetTotal(txtBox) { var total = 0; $('input:text').each(function(index, value) { total += parseInt($(value).val() || 0); }); $("#chkTotal").html(total); } My view uses these txt boxes <div class="editor-field"> @Html.TextBox("Field1", String.Empty, new {InputType = "text", id = "field1", onchange = "GetTotal(this)" }) </div> <div class="editor-field"> @Html.TextBox("Field2", String.Empty, new {InputType = "text", id = "field2", onchange = "GetTotal(this)" }) </div> <div> <h3>Total Checked</h3> </div> <div id="chkTotal"></div> Now I am trying to implement another selector which will total two additional editor fields... function GetTotal1(txtBox) { var total1 = 0; $('input:text').each(function (index, value) { total1 += parseInt($(value).val() || 0); }); $("#disTotal").html(total1); } View: <div class="editor-field"> @Html.TextBox("Field3", String.Empty, new {InputType = "text", id = "field3", onchange = "GetTotal1(this)" }) </div> <div class="editor-field"> @Html.TextBox("Field4", String.Empty, new {InputType = "text", id = "field4", onchange = "GetTotal1(this)" }) </div> <div> <h3>Total Distributed</h3> </div> <div id="disTotal"></div>

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• sql query problem

  - by benjamin button

  why this query give me an error:ORA-01790 SELECT TO_CHAR(logical_date,'MM') MONTH FROM logical_date WHERE logical_date_type='B' UNION SELECT TO_CHAR(logical_date,'MM')+1 MONTH FROM logical_date WHERE logical_date_type='B' but when i run them separately,they give the proper output.

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• Can I put some form of If..End blocks inside of a hash definition?

  - by Benjamin Manns

  I am creating a web application to integrate with Chargify. I want to return a hash with customer_id set if the user has a customer associated with the account, and customer_attributes if a customer has to be created. Is there any way that I could do this with an if..end block inside of the hash definition. For example, I would be wanting to do something like the following (does not work): def subscription_params(product_id) { :product_id => product_id, if customer_id.nil? :customer_attributes => customer_params, else :customer_id => customer_id, end :credit_card_attributes => credit_card_params } end

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