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• Learning Electronics & the Arduino Microcontroller

  - by Chris Williams

  Lately, I've had a growing interest in Electronics & Microcontrollers. I'm a loyal reader of Make Magazine and thoroughly enjoy seeing all the various projects in each issue, even though I rarely try to make any of them. I've been reading and watching videos about the Arduino, which is an open source Microcontroller and software project that the people at Make (and a lot of other folks) are pretty hot about. Even the prebuilt hardware is remarkably inexpensive , although there are kits available to build one from the base components. (Full disclosure: I bought my first soldering iron... EVER... just last week, so I fully acknowledge the likelihood of making some mistakes. That's why I'm not trying to do the "build it yourself" kit just yet. It's also another reason to be happy the hardware is so cheap.) There are a number of different Arduino boards available, but the two that have really piqued my interest are the Arduino UNO and the NETduino. The UNO is a very popular board, with a number of features and is under $35 which means I won't hurl myself off a bridge when I inevitably destroy it. The NETduino is very similar to the Arduino UNO and has the added advantage of being programmable with... you guessed it... C#. I'm actually ordering both boards and some miscellaneous other doodads to go with them.  There are a few good websites for this sort of thing, including www.makershed.com and www.adafruit.com. The price difference is negligible, so in my case, I'm ordering from Maker Shed (the Make Magazine people) because I want to support them. :) I've also picked up a few O'Reilly books on the subject which I am looking forward to reading & reviewing: Make: Electronics, Arduino: A Quick Start Guide and Getting Started With Arduino (all three of which arrived on my doorstep today.) This ties in with my "learn more about robotics" goals as well, since I'll need a good understanding of Electronics if I want to move past Lego Mindstorms eventually.

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• Strategies for managUse of types in Python

  - by dave

  I'm a long time programmer in C# but have been coding in Python for the past year. One of the big hurdles for me was the lack of type definitions for variables and parameters. Whereas I totally get the idea of duck typing, I do find it frustrating that I can't tell the type of a variable just by looking at it. This is an issue when you look at someone else's code where they've used ambiguous names for method parameters (see edit below). In a few cases, I've added asserts to ensure parameters comply with an expected type but this goes against the whole duck typing thing. On some methods, I'll document the expected type of parameters (eg: list of user objects), but even this seems to go against the idea of just using an object and let the runtime deal with exceptions. What strategies do you use to avoid typing problems in Python? Edit: Example of the parameter naming issues: If our code base we have a task object (ORM object) and a task_obj object (higher level object that embeds a task). Needless to say, many methods accept a parameter named 'task'. The method might expect a task or a task_obj or some other construct such as a dictionary of task properties - it is not clear. It is them up to be to look at how that parameter is used in order to work out what the method expects.

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• How should I generate and store the boundries of a cave?

  - by Bob Roberts

  I am making a small cave copter game (seriously, where did this type of game come from anyway) and I am trying to figure out how to make and store the procedural generated walls. I am thinking about creating the walls by randomly picking two points away from the center of the screen. They will be no closer than the height of helicopter and no further than the edge of the screen, weighted to prefer to go in the same direction as the point prior so I end up with stalactites and stalagmites and not just noise, at set intervals of distance. To store, perhaps parallel arrays/lists, one for distance from center to top screen and one for distance from center to bottom. Am I way off base with my thinking? I just want the cave to be varied and challenging, I just have never worked with generating data like this. Edit: Woah, I just realized that my idea would lead to a player being able to stay in the middle of the screen and win. That isn't right at all. So the very basis of how I was going to generate is wrong. Edit 2: I also realized I left out a very crucial point. Part of the mechanics of the game will let the player go backwards therefor the data structure should be continuous.

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• How can I resolve component types in a way that supports adding new types relatively easily?

  - by John

  I am trying to build an Entity Component System for an interactive application developed using C++ and OpenGL. My question is quite simple. In my GameObject class I have a collection of Components. I can add and retrieve components. class GameObject: public Object { public: GameObject(std::string objectName); ~GameObject(void); Component * AddComponent(std::string name); Component * AddComponent(Component componentType); Component * GetComponent (std::string TypeName); Component * GetComponent (<Component Type Here>); private: std::map<std::string,Component*> m_components; }; I will have a collection of components that inherit from the base Components class. So if I have a meshRenderer component and would like to do the following GameObject * warship = new GameObject("myLovelyWarship"); MeshRenderer * meshRenderer = warship->AddComponent(MeshRenderer); or possibly MeshRenderer * meshRenderer = warship->AddComponent("MeshRenderer"); I could be make a Component Factory like this: class ComponentFactory { public: static Component * CreateComponent(const std::string &compTyp) { if(compTyp == "MeshRenderer") return new MeshRenderer; if(compTyp == "Collider") return new Collider; return NULL; } }; However, I feel like I should not have to keep updating the Component Factory every time I want to create a new custom Component but it is an option. Is there a more proper way to add and retrieve these components? Is standard templates another solution?

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• jQuery 2.0 drops support for legacy IE (IE6, IE7, IE8)

  - by Renso

  Originally posted on: http://geekswithblogs.net/renso/archive/2013/10/31/jquery-2.0-drops-support-for-legacy-ie-ie6-ie7-ie8.aspxjQuery upgrades may not be as reverse compatible as you may think. Starting from version 2 of jQuery, IE6, IE7 and yes also IE8 will no longer be supported. These are now considered legacy browsers. You will need to stop any upgrades to jQuery until your SLA states that IE8 is no longer supported and remain in jQuery 1.9.Some of the reasons for not supporting IE8 and before:- Remove all the code clutter in the jQuery library with code that has to deal with IE browser compatibility issues between IE6, 7 and 8 and the newer IE versions, the latter being more compliant.- IE6 and 7 may have fallen to below 2% generally, that does not mean that that is true for your client base. In the oil and gas industry some clients are years behind and you may have 50% or more of clients remain on IE8 or older for the foreseeable future.- The difference between browser engines has become almost negligible, as it should be. So one of the greatest goals of jQuery to abstract that out for developers is no longer needed, for most part anyway. - CSS3 features like animations basically replace the need for jQuery’s 2.0 animations and effects.If the need is still there to support IE8 or before, but you also want to upgrade, then use conditional comments:<!--[if lt IE 9]>    <script src="jQuery-1.9.0.js"></script><![endif]--><!--[if gte IE 9]><!-->    <script src="jQuery-2.0.0.js"><</script><!--<![endif]-->

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• Is there such a thing as "closure" with software work?

  - by Bobby Tables

  I burned out last year (after a decade of fulltime programming jobs) and am on a sabbatical now. With all the self-examination I've started to figure out some of the root causes of my burnout, and one of the major ones is basically this: there was never any real closure in any of the work I've ever done. It was always a case of getting into an open-ended support/maintenance grind and going stale. When I first entered the industry, I had this image of programming work being very project-based. And I expected projects to have a start, beginning, and END. And then you move on and start on something totally new and fresh. Basically I never expected that a lot (most) of software work involves supporting and maintaining the same code base for open-ended long periods of time - years and even decades. That, combined with generally having itchy feet makes me think that burnout is inevitable for me, after 2-3 years, in ANY fulltime software job. All this sounds like I probably should have been a contractor instead of a fulltimer. But when I discuss this with people, a lot of them say that even THEN you can't really escape having to go back and maintain/support the stuff you worked on, over and over (eg. Coming back on support contracts, for example). The nature of software work is simply like that. There is no project closure, unlike in many other engineering fields. So my question is - Is there ANY programming work out there which is based on short to mid term projects/stints and then moving on cleanly? And is there any particular industry domain or specialization where this kind of project work is typical?

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• Novice prototyping a massive multiplayer webpage based gaming system

  - by Sean Hendlin

  I'm trying to build a website based game in which various pages of the site act as different areas of the game. I am wondering what you would recommended as a design structure. Which languages would be best if building what will hopefully becomes a massive system able to scale to massive amounts of users. I am wondering if and how various elements from differing languages could be meshed to interact with each other. For example could I use html5, javascript, and PHP? What about asp.net how might that factor in? I'm a newbie programmer but I've been working on this idea for years and I want to build it to reality. Your comments and suggestions are appreciated. P.S.: The game is not all graphics and animation (though flash like appearance and some animation would be nice). What I am thinking of is essentially a heavily gamified system of forms. And LOTS of data in many different categories cross referencing each-other. I'm not sure how to go about structuring the collection of data. Also while I know javascript can be used to process some functions, I'm wondering what sort of base system I would need to handle the server side processing of what I am expecting to be some pretty significant algorithm processing. That is to say I expect to have many many many functions and I'm not sure how to mange this using javascript. I feel like they would be forgotten, mixed up, disorganizes as they essentially only exist where they are coded. I guess I need to learn something of libraries? OK, Thank you! Is enough from me for now.

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• How to Figure AdSense PPC with AdWords CPC of $0.05

  - by Melanie

  Often when I am using the Adwords Keyword tool I find keywords with a CPC of $0.05... I mean VERY often. Is this like base level when it comes to PPC or is this a possible error? For example, with a few keywords I have targetted with a 0.05 CPC, I often find a PPC of 0.25 or more. Obviously, this is because my content is triggering other keywords, although it is centered around a 0.05 keyword. I have found several keywords that have over 200,000 searches using the [exact] search parameter but have a CPC of $0.05. I plan on writing content to cover these keywords, but I am trying to figure the approximate value of these keywords. 0.05 leads me to believe there are no advertisers so IF someone were to advertise and use this keyword, it would cost them ~0.05. But since there is obviously no demand for these keywords and thus they aren't getting bids, other ads MUST be shown. How can I predict the value of ads with a CPC of $0.05? Strange question I know, but I'm just trying to understand this a bit more.

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• Code structure for multiple applications with a common core

  - by Azrael Seraphin

  I want to create two applications that will have a lot of common functionality. Basically, one system is a more advanced version of the other system. Let's call them Simple and Advanced. The Advanced system will add to, extend, alter and sometimes replace the functionality of the Simple system. For instance, the Advanced system will add new classes, add properties and methods to existing Simple classes, change the behavior of classes, etc. Initially I was thinking that the Advanced classes simply inherited from the Simple classes but I can see the functionality diverging quite significantly as development progresses, even while maintaining a core base functionality. For instance, the Simple system might have a Project class with a Sponsor property whereas the Advanced system has a list of Project.Sponsors. It seems poor practice to inherit from a class and then hide, alter or throw away significant parts of its features. An alternative is just to run two separate code bases and copy the common code between them but that seems inefficient, archaic and fraught with peril. Surely we have moved beyond the days of "copy-and-paste inheritance". Another way to structure it would be to use partial classes and have three projects: Core which has the common functionality, Simple which extends the Core partial classes for the simple system, and Advanced which also extends the Core partial classes for the advanced system. Plus having three test projects as well for each system. This seems like a cleaner approach. What would be the best way to structure the solution/projects/code to create two versions of a similar system? Let's say I later want to create a third system called Extreme, largely based on the Advanced system. Do I then create an AdvancedCore project which both Advanced and Extreme extend using partial classes? Is there a better way to do this? If it matters, this is likely to be a C#/MVC system but I'd be happy to do this in any language/framework that is suitable.

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• Updating password hashing without forcing a new password for existing users

  - by Willem

  You maintain an existing application with an established user base. Over time it is decided that the current password hashing technique is outdated and needs to be upgraded. Furthermore, for UX reasons, you don't want existing users to be forced to update their password. The whole password hashing update needs to happen behind the screen. Assume a 'simplistic' database model for users that contains: ID Email Password How does one go around to solving such a requirement? My current thoughts are: create a new hashing method in the appropriate class update the user table in the database to hold an additional password field Once a user successfully logs in using the outdated password hash, fill the second password field with the updated hash This leaves me with the problem that I cannot reasonable differentiate between users who have and those who have not updated their password hash and thus will be forced to check both. This seems horribly flawed. Furthermore this basically means that the old hashing technique could be forced to stay indefinitely until every single user has updated their password. Only at that moment could I start removing the old hashing check and remove the superfluous database field. I'm mainly looking for some design tips here, since my current 'solution' is dirty, incomplete and what not, but if actual code is required to describe a possible solution, feel free to use any language.

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• Extending AutoVue Through the API

  - by GrahamOracle

  The AutoVue API (previously called the “VueBean” API) is a great way to extend AutoVue Client/Server Deployment – specifically the client component – beyond the out-of-the-box capabilities and into new use-cases. In addition to having a solid grasp of J2SE programming, make sure to leverage the following resources if you’re developing or interested in developing customizations/extensions to AutoVue Client/Server Deployment: Programmer’s Guide: Before all else, read through the AutoVue API Programmer’s Guide to get an understanding of the architecture of the API. The Programmer’s Guide is included with the installation of AutoVue, and is posted on the Oracle Technology Network (OTN) website for the recent versions of AutoVue: http://www.oracle.com/technetwork/documentation/autovue-091442.html Javadocs: The AutoVue API Javadocs document the many packages, classes, and methods available to you. The Javadocs are included in the product installation under the \docs\JavaDocs\VueBean folder (easiest starting point is through the file index.html). Integrations Forum: If you have development questions that aren’t answered through the documentation, feel free to register and post in the public AutoVue Integrations Forum. For more information refer to the following blog post from October 2010: https://blogs.oracle.com/enterprisevisualization/entry/exciting_news_autovue_integrat Code Samples: Although the Oracle Support team’s scope of Support for API/customization topics is to answer questions regarding information already provided in the documentation (i.e. not to design or develop custom solutions), there are cases where Support comes across interesting samples or code snippets that may benefit various customers. In those cases, our Support team posts the samples into the Oracle knowledge base, and tracks them through a single reference note. The link to the KM Note depends on how you currently access the My Oracle Support portal: Flash interface: https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&doctype=REFERENCE&id=1325990.1 (New) HTML interface: https://supporthtml.oracle.com/epmos/faces/ui/km/SearchDocDisplay.jspx?type=DOCUMENT&id=1325990.1 Happy coding!

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• How do I install the EW-7318Ug wireless drivers?

  - by user69731

  I'm on Ubuntu 12.04 and I need to install & configure Internet connection. I want to use montor mode in Wireshark. After Ubuntu installation my wireless card was recognized but it doesn't connect to the Internet. Internal wireless card works well. What should I do? I'm new to Linux. PC:~$ ifconfig -a eth0 Link encap:Ethernet HWaddr 64:31:50:0f:d4:70 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:45 Base address:0x8000 eth1 Link encap:Ethernet HWaddr e0:2a:82:aa:2d:3e inet addr:192.168.0.101 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::e22a:82ff:feaa:2d3e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:20978 errors:0 dropped:0 overruns:0 frame:364651 TX packets:20949 errors:171 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:19299119 (19.2 MB) TX bytes:3024858 (3.0 MB) Interrupt:19 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:4788 errors:0 dropped:0 overruns:0 frame:0 TX packets:4788 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:387017 (387.0 KB) TX bytes:387017 (387.0 KB) wlan1 Link encap:Ethernet HWaddr 00:1f:1f:44:c1:a4 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:10508 errors:0 dropped:0 overruns:0 frame:0 TX packets:6143 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:14831319 (14.8 MB) TX bytes:644606 (644.6 KB) PC:~$ iwconfig lo no wireless extensions. wlan1 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on eth1 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:225 Noise level:162 Rx invalid nwid:0 invalid crypt:0 invalid misc:0 eth0 no wireless extensions.

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• What do I need to know to design a language and write a interpreter for it?

  - by alFReD NSH

  I know this question has been asked and even there are thousands of books and articles about it. But the problem is that there are too many, and I don't know are they good enough, I have to design a language and write a interpreter for it. The base language is javascript (using nodejs) but it's ok if the compiler was written in another language that I can use from node. I had done a research about compiler compilers in JS, there is jison (Bison implementaion in JS), waxeye, peg.js. I decided to give jison a try, due to the popularity and its being used by coffee script, so it should be able to cover my language too. The grammar definition syntax is similar to bison. But when I tried read the bison manual it seemed very hard to understand for me. And I think it's because I don't know a lot of things about what I'm doing. Like I don't what is formal language theory. I am experienced in Javascript (I'm more talented in JS than most average programmers). And also know basic C and C++ (not much experience but can write a working code for basic things). I haven't had any formal education, so I may not be familiar with some software engineering and computer science principles. Though everyday I try to grasp a lot of articles and improve. So I'm asking if you know any good book or article that can help me. Please also write why the resource you're suggesting is good. --update-- The language I'm trying to create, is not really complicated. All it has is expressions (with or without units), comparisons and logical operators. There are no functions, loops, ... The goal is to create a language that non-programmers can easily learn. And to write customized validations and calculations.

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• Building Enterprise Smartphone App &ndash; Part 4: Application Development Considerations

  - by Tim Murphy

  This is the final part in a series of posts based on a talk I gave recently at the Chicago Information Technology Architects Group.  Feel free to leave feedback. Application Development Considerations Now we get to the actual building of your solutions.  What are the skills and resources that will be needed in order to develop a smartphone application in the enterprise? Language Knowledge One of the first things you need to consider when you are deciding which platform language do you either have the most in house skill base or can you easily acquire.  If you already have developers who know Java or C# you may want to use either Android or Windows Phone.  You should also take into consideration the market availability of developers.  If your key developer leaves how easy is it to find a knowledgeable replacement? A second consideration when it comes to programming languages is the qualities exposed by the languages of a particular platform.  How well does that development language and its associated frameworks support things like security and access to the features of the smartphone hardware?  This will play into your overall cost of ownership if you have to create this infrastructure on your own. Manage Limited Resources Everything is limited on a smartphone: battery, memory, processing power, network bandwidth.  When developing your applications you will have to keep your footprint as small as possible in every way.  This means not running unnecessary processes in the background that will drain the battery or pulling more data over the airwaves than you have to.  You also want to keep your on device in as compact a format as possible. Mobile Design Patterns There are a number of design patterns that have either come to life because of smartphone development or have been adapted for this use.  The main pattern in the Windows Phone environment is the MVVM (Model-View-View-Model).  This is great for overall application structure and separation of concerns.  The fun part is trying to keep that separation as pure as possible.  Many of the other patterns may or may not have strict definitions, but some that you need to be concerned with are push notification, asynchronous communication and offline data storage. Real estate is limited on smartphones and even tablets. You are also limited in the type of controls that can be represented in the UI. This means rethinking how you modularize your application. Typing is also much harder to do so you want to reduce this as much as possible.  This leads to UI patterns.  While not what we would traditionally think of as design patterns the guidance each platform has for UI design is critical to the success of your application.  If user find the application difficult navigate they will not use it. Development Process Because of the differences in development tools required, test devices and certification and deployment processes your teams will need to learn new way of working together.  This will include the need to integrate service contracts of back-end systems with mobile applications.  You will also want to make sure that you present consistency across different access points to corporate data.  Your web site may have more functionality than your smartphone application, but it should have a consistent core set of functionality.  This all requires greater communication between sub-teams of your developers. Testing Process Testing of smartphone apps has a lot more to do with what happens when you lose connectivity or if the user navigates away from your application. There are a lot more opportunities for the user or the device to perform disruptive acts.  This should be your main testing concentration aside from the main business requirements.  You will need to do things like setting the phone to airplane mode and seeing what the application does in order to weed out any gaps in your handling communication interruptions. Need For Outside Experts Since this is a development area that is new to most companies the need for experts is a lot greater. Whether these are consultants, vendor representatives or just development community forums you will need to establish expert contacts. Nothing is more dangerous for your project timelines than a lack of knowledge.  Make sure you know who to call to avoid lengthy delays in your project because of knowledge gaps. Security Security has to be a major concern for enterprise applications. You aren't dealing with just someone's game standings. You are dealing with a companies intellectual property and competitive advantage. As such you need to start by limiting access to the application itself.  Once the user is in the app you need to ensure that the data is secure at all times.  This includes both local storage and across the wire.  This means if a platform doesn’t natively support encryption for these functions you will need to find alternatives to secure your data.  You also need to keep secret (encryption) keys obfuscated or locked away outside of the application. People can disassemble the code otherwise and break your encryption. Offline Capabilities As we discussed earlier one your biggest concerns is not having connectivity.  Because of this a good portion of your code may be dedicated to handling loss of connection and reconnection situations.  What do you do if you lose the network?  Back up all your transactions and store of any supporting data so that operations can continue off line. In order to support this you will need to determine the available flat file or local data base capabilities of the platform.  Any failed transactions will need to support a retry mechanism whether it is automatic or user initiated.  This also includes your services since they will need to be able to roll back partially completed transactions.  What ever you do, don’t ignore this area when you are designing your system. Deployment Each platform has different deployment capabilities. Some are more suited to enterprise situations than others. Apple's approach is probably the most mature at the moment. Prior to the current generation of smartphone platforms it would have been Windows CE. Windows Phone 7 has the limitation that the app has to be distributed through the same network as public facing applications. You mark them as private which means that they are only accessible by a direct URL. Unfortunately this does not make them undiscoverable (although it is very difficult). This will change with Windows Phone 8 where companies will be able to certify their own applications and distribute them.  Given this Windows Phone applications need to be more diligent with application access in order to keep them restricted to the company's employees. My understanding of the Android deployment schemes is that it is much less standardized then either iOS or Windows Phone. Someone would have to confirm or deny that for me though since I have not yet put the time into researching this platform further. Given my limited exposure to the iOS and Android platforms I have not been able to confirm this, but there are varying degrees of user involvement to install and keep applications updated. At one extreme the user just goes to a website to do the install and in other case they may need to download files and perform steps to install them. Future Bluetooth Today we use Bluetooth for keyboards, mice and headsets.  In the future it could be used to interrogate car computers or manufacturing systems or possibly retail machines by service techs.  This would open smartphones to greater use as a almost a Star Trek Tricorder.  You would get you all your data as well as being able to use it as a universal remote for just about any device or machine. Better corporation controlled deployment At least in the Windows Phone world the upcoming release of Windows Phone 8 will include a private certification and deployment option that is currently not available with Windows Phone 7 (Mango). We currently have to run the apps through the Marketplace certification process and use a targeted distribution method. Platform independent approaches HTML5 and JavaScript with Web Service has become a popular topic lately for not only creating flexible web site, but also creating cross platform mobile applications.  I’m not yet convinced that this lowest common denominator approach is viable in most cases, but it does have it’s place and seems to be growing.  Be sure to keep an eye on it. Summary From my perspective enterprise smartphone applications can offer a great competitive advantage to many companies.  They are not cheap to build and should be approached cautiously.  Understand the factors I have outlined in this series, do you due diligence and see if there is a portion of your business that can benefit from the mobile experience. del.icio.us Tags: Architecture,Smartphones,Windows Phone,iOS,Android

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• Multiple Denial of Service (DoS) vulnerabilities in FreeType

  - by chandan

  CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-1126 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 10.0 FreeType Font Engine Solaris 11 Contact Support Solaris 10 SPARC: 119812-16 X86: 119813-18 Solaris 9 Contact Support CVE-2012-1127 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1128 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1129 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1130 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1131 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1132 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1133 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1134 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1135 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1136 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1137 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1138 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1139 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1140 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1141 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1142 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 CVE-2012-1143 Numeric Errors vulnerability 4.3 CVE-2012-1144 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability 9.3 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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• Is there value in having new developers (graduates) start as testers / bug-fixers?

  - by Nico Huysamen

  Hi Programmers Community. What are your thoughts on the following: Is there value in having new developers (graduates) start as testers / bug-fixers? There are two schools of thought here that I have come across. Having new developers (graduates) start as testers / bug-fixers / doing SLA (Service Level Agreement) work, get's them familiar with the code base. It also allows them the opportunity to learn how to read [other people's] code. Further more, by fixing bugs, they will learn certain bad and good practices, which could hopefully help them in the future. The other way of thinking though, is that if you immediately start new developers on something like testing / bug-fixing / SLA work, their appetite for the development world might go away, and/or they might leave the company and you potentially loose out on a great future resource. Is there a balance that should be kept between these two? Currently where I work there is no clear-cut definition of what new starters do. Some go directly on to client work, while some fall in to the SLA world. Should companies have such a policy? Or should it be handled on a case-by-case or opportunity-based basis? Hope to hear from some of you that have experience in this field. Thanks!

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• If I install Ubuntu 12.04, will it recognize all of my RAM?

  - by user91048

  I have a question that's been bugging me since a long time. A friend of mine told me that when he had Ubuntu 11.10 installed the OS only recognized 3.4GB instead of 8GB. In the next week I'll be buying a new computer and I'll have 8GB of RAM, does the Video Card need to have it's own video memory for the OS to recognize the RAM entirely?. If you could give me some advise on how to configure my PC before I buy it it would be great. Thanks. Tengo una duda que me ronda de hace tiempo. Un amigo mio me comento que con ubuntu 11.10 tenia 8 gb de RAM y que solo le reconocia 3.4. Dentro de unos 5 dias me comprare un ordenador nuevo a base de componentes y voy a meterle 8 gb de RAM. ¿Hace falta que la tarjeta gráfica tenga Gb dedicados para que el sistema me reconozca la RAM entera? Si podeis darme algunos consejillos sobre como configurar el PC antes de comprarmelo para que ese problema no me pase, Muchisimas Gracias.

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• Low-level game engine renderer design

  - by Mark Ingram

  I'm piecing together the beginnings of an extremely basic engine which will let me draw arbitrary objects (SceneObject). I've got to the point where I'm creating a few sensible sounding classes, but as this is my first outing into game engines, I've got the feeling I'm overlooking things. I'm familiar with compartmentalising larger portions of the code so that individual sub-systems don't overly interact with each other, but I'm thinking more of the low-level stuff, starting from vertices working up. So if I have a Vertex class, I can combine that with a list of indices to make a Mesh class. How does the engine determine identical meshes for objects? Or is that left to the level designer? Once we have a Mesh, that can be contained in the SceneObject class. And a list of SceneObject can be placed into the Scene to be drawn. Right now I'm only using OpenGL, but I'm aware that I don't want to be tying OpenGL calls right in to base classes (such as updating the vertices in the Mesh, I don't want to be calling glBufferData etc). Are there any good resources that discuss these issues? Are there any "common" heirachies which should be used?

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• Problems with wired ethernet connection Ubuntu 11.10

  - by Andrew Fielden

  After some partition shuffling, I've got a problem on my 11.10 system. The wired ethernet interface fails to come up, although the wireless interface is working. I'm using NetworkManager. I thought this may be a problem with NetworkManager, so I checked the config files, which look ok. I then tried re-installing the package, but this didn't resolve the issues. I'm not sure at this point if the problem is due to software configuration, or a hardware problem. I've also tried the cable in other router ports, but same problem. The symptoms are:- System settings - Network reports that the cable is unplugged (it isn't) ifconfig reports the following eth0 Link encap:Ethernet HWaddr f0:4d:a2:a2:a7:fe UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:10 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:792 (792.0 B) TX bytes:0 (0.0 B) Interrupt:46 Base address:0xe000 My /etc/network/interfaces file has the following: auto lo iface lo inet loopback My /etc/resolv.conf file has the following: # Generated by NetworkManager The router's red light is on for this port dmesg reports ADDRCONF(NETDEV_UP): eth0: link is not ready

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• How to manage drawing loop when changing render targets

  - by George Duckett

  I'm managing my game state by having a base GameScreen class with a Draw method. I then have (basically) a stack of GameScreens that I render. I render the bottom one first, as screens above might not completely cover the ones below. I now have a problem where one GameScreen changes render targets while doing its rendering. Anything the previous screens have drawn to the backbuffer is lost (as XNA emulates what happens on the xbox). I don't want to just set the backbuffer to preserve its contents as I want this to work on the xbox as well as PC. How should I manage this problem? A few ideas I've had: Render every GameScreen to its own render target, then render them all to the backbuffer. Create some kind of RenderAction queue where a game screen (and anything else I guess) could queue something to be rendered to the back buffer. They'd render whatever they wanted to any render target as normal, but if they wanted to render to the backbuffer they'd stick that in a queue which would get processed once all rendertarget rendering was done. Abstract away from render targets and backbuffers and have some way of representing the way graphics flows and transforms between render targets and have something manage/work out the correct rendering order (and render targets) given what rendering process needs as input and what it produces as output. I think each of my ideas have pros and cons and there are probably several other ways of approaching this general problem so I'm interested in finding out what solutions are out there.

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• 12.0.4.3 - Missing Battery Icon, auto Suspend not working, Keyboard shortcuts volume up/down no longer working

  - by Navraj

  Problems I am experiencing: Battery Icon not showing up unity bar (top right corner). Volume Up/Down/Mute not working. Bluetooth hot keys described above also not working.Brightness up/down keys on this keyboard no longer working (apple wireless keyboard) Laptop no longer suspends when lid is shut. I have to go to 'power' button on top right corner and click on 'Suspend' All was working flawlessly until I did the following: I have recently upgraded to Nvidia propriety driver version 319 {version recommended}. Installed Xscreensaver and then removed it and went back to default screensaver. Done a system update (1st since installing) and now currently running: Linux 3.8.0-32-generic #47~precise1-Ubuntu SMP Wed Oct 2 16:19:35 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux NOTE: Base system was ubuntu 12.04.3 installed from ISO however lsb_release reports "No LSB modules are available" 4.installed psensor. I have check power setting (via Settings) and power setting via dconf-editor and set to recommended settings as described in posts detailing solution to this problem. - I have disabled 1) Nvdia settings at startup and 2) psensor at startup but this does not help. I am using an HP DV7 with 2GB Nvidia card. Not using any fancy graphics features. Recommendations? Thanks.

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• CodePlex Daily Summary for Thursday, June 05, 2014

  CodePlex Daily Summary for Thursday, June 05, 2014Popular Releases51Degrees - Device Detection and Redirection: 3.1.2.3: Version 3.1 HighlightsDevice detection algorithm is over 100 times faster. Regular expressions and levenshtein distance calculations are no longer used. The device detection algorithm performance is no longer limited by the number of device combinations contained in the dataset. Two modes of operation are available: Memory – the detection data set is loaded into memory and there is no continuous connection to the source data file. Slower initialisation time but faster detection performanc...CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.27.0: CodeMap now indicates the type name for all members Implemented running scripts 'as administrator'. Just add '//css_npp asadmin' to the script and run it as usual. 'Prepare script for distribution' now aggregates script dependency assemblies. Various improvements in CodeSnipptet, Autcompletion and MethodInfo interactions with each other. Added printing line number for the entries in CodeMap (subject of configuration value) Improved debugging step indication for classless scripts ...Load Runner - HTTP Pressure Test Tool: Load Runner 1.1: 1. added support for measuring total in time / hits / traffic / requests 2. abstracted log, default log to console / text file 3. refactored codeKartris E-commerce: Kartris v2.6003: Bug fixes: Fixed issue where category could not be saved if parent categories not altered Updated split string function to 500 chars otherwise problems with attribute filtering in PowerPack Improvements: If a user has group pricing below that available through qty discounts, that will show in place of the qty discountMagicaVoxel: MagicaVoxel Renderer ver 0.01: MagicaVoxel Renderer (Win 0.01)ClosedXML - The easy way to OpenXML: ClosedXML 0.72.3: 70426e13c415 ClosedXML for .Net 4.0 now uses Open XML SDK 2.5 b9ef53a6654f Merge branch 'master' of https://git01.codeplex.com/forks/vbjay/closedxml 727714e86416 Fix range.Merge(Boolean) for .Net 3.5 eb1ed478e50e Make public range.Merge(Boolean checkIntersects) 6284cf3c3991 More performance improvements when saving.MCE Controller: MCE Controller V1.8.6: BETA. Adds option to disable all internal commands. If the "Disable Internal Commands" checkbox in settings is checked, MCE Controller will disable all internally defined commands (e.g. VK key codes, single characters, mouse commands, etc...) and only respond to commands defined in the MCEControl.commmands file. Attempts to fix inability for clients to reconnect after they forcibly close the connection. Build 1.8.6.37445Visual F# Tools: Daily Builds Preview 06-04-2014: This preview is released for use under a proprietary license.SEToolbox: SEToolbox 01.032.018 Release 1: Added ability to merge/join two ships, regardless of origin. Added Language selection menu to set display text language (for SE resources only), and fixed inherent issues. Added full support for Dedicated Servers, allowing use on PC without Steam present, and only the Dedicated Server install. Added Browse button for used specified save game selection in Load dialog. Installation of this version will replace older version.Service monitor: Version 3.1: Added the ability of the tool to restart itself in 'Admin' mode without UAC prompt. Note that this only works after the tool has run in 'Admin' mode at least once before. This is only supported on Vista, Windows 7 or later. See my blog post on how it is done.DNN Blog: 06.00.07: Highlights: Enhancement: Option to show management panel on child modules Fix: Changed SPROC and code to ensure the right people are notified of pending comments. (CP-24018) Fix: Fix to have notification actions authentication assume the right module id so these will work from the messaging center (CP-24019) Fix: Fix to issue in categories in a post that will not save when no categories and no tags selectedTEncoder: 4.0.0: --4.0.0 -Added: Video downloader -Added: Total progress will be updated more smoothly -Added: MP4Box progress will be shown -Added: A tool to create gif image from video -Added: An option to disable trimming -Added: Audio track option won't be used for mpeg sources as default -Fixed: Subtitle position wasn't used -Fixed: Duration info in the file list wasn't updated after trimming -Updated: FFMpegQuickMon: Version 3.14 (Pie release): This is unofficially the 'Pie' release. There are two big changes.1. 'Presets' - basically templates. Future releases might build on this to allow users to add more presets. 2. MSI Installer now allows you to choose components (in case you don't want all collectors etc.). This means you don't have to download separate components anymore (AllAgents.zip still included in case you want to use them separately) Some other changes:1. Add/changed default file extension for monitor packs to *.qmp (...VeraCrypt: VeraCrypt version 1.0d: Changes between 1.0c and 1.0d (03 June 2014) : Correct issue while creating hidden operating system. Minor fixes (look at git history for more details).Keepass2Android: 0.9.4-pre1: added plug-in support: See settings for how to get plug-ins! published QR plug-in (scan passwords, display passwords as QR code, transfer entries to other KP2A devices) published InputStick plugin (transfer credentials to your PC via bluetooth - requires InputStick USB stick) Third party apps can now simply implement querying KP2A for credentials. Are you a developer? Please add this to your app if suitable! added TOTP support (compatible with KeeOTP and TrayTotp) app should no l...Microsoft Web Protection Library: AntiXss Library 4.3.0: Download from nuget or the Microsoft Download Center This issue finally addresses the over zealous behaviour of the HTML Sanitizer which should now function as expected once again. HTML encoding has been changed to safelist a few more characters for webforms compatibility. This will be the last version of AntiXSS that contains a sanitizer. Any new releases will be encoding libraries only. We recommend you explore other sanitizer options, for example AntiSamy https://www.owasp.org/index....Z SqlBulkCopy Extensions: SqlBulkCopy Extensions 1.0.0: SqlBulkCopy Extensions provide MUST-HAVE methods with outstanding performance missing from the SqlBulkCopy class like Delete, Update, Merge, Upsert. Compatible with .NET 2.0, SQL Server 2000, SQL Azure and more! Bulk MethodsBulkDelete BulkInsert BulkMerge BulkUpdate BulkUpsert Utility MethodsGetSqlConnection GetSqlTransaction You like this library? Find out how and why you should support Z Project Become a Memberhttp://zzzproject.com/resources/images/all/become-a-member.png|ht...Tweetinvi a friendly Twitter C# API: Tweetinvi 0.9.3.x: Timelines- Added all the parameters available from the Timeline Endpoints in Tweetinvi. - This is available for HomeTimeline, UserTimeline, MentionsTimeline // Simple query var tweets = Timeline.GetHomeTimeline(); // Create a parameter for queries with specific parameters var timelineParameter = Timeline.CreateHomeTimelineRequestParameter(); timelineParameter.ExcludeReplies = true; timelineParameter.TrimUser = true; var tweets = Timeline.GetHomeTimeline(timelineParameter); Tweetinvi 0.9.3.1...Sandcastle Help File Builder: Help File Builder and Tools v2014.5.31.0: General InformationIMPORTANT: On some systems, the content of the ZIP file is blocked and the installer may fail to run. Before extracting it, right click on the ZIP file, select Properties, and click on the Unblock button if it is present in the lower right corner of the General tab in the properties dialog. This release completes removal of the branding transformations and implements the new VS2013 presentation style that utilizes the new lightweight website format. Several breaking cha...Magick.NET: Magick.NET 6.8.9.101: Magick.NET linked with ImageMagick 6.8.9.1. Breaking changes: - Int/short Set methods of WritablePixelCollection are now unsigned. - The Q16 build no longer uses HDRI, switch to the new Q16-HDRI build if you need HDRI.New Projects12306helper: 12306 ????2112110044: dasda2112110202: asdfsdfsdfsd2112110298: TieuDan2112110315: vftgcdxfrBaidu PCS: BaiduPCSExcel2Sobek: Here the project Excel2Sobek is hosted. Excel2Sobek is a preprocessor in Excel's VBA for the SOBEK 2 hydrological and hydraulic simulation model by Deltares.Help Desk Pro: Manage a business of customer serviceMARGYE: MARGYE CMS CMR E-CommerceMemberBS: MemberBS20140605MiKroTik API: Api untuk menghubungkan aplikasi anda dengan router Mikrotik.MiniProfiler + Log4Net: Use MiniProfiler and Log4Net in ASP.NET projectStore Apps Unity App Base for Prism: This simple library provides an Application Base for a Windows Store application that automatically connects Unity to provide injection as the container.SuperCaptcha for MVC: Custom captcha control for MVCTC760240: myappwithfailuresWindows Phone 8 Dilbert Comic Reader: Basic WP8.1 app that displays comics from http://www.dilbert.com.x86 Proved: Prove what you run!

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• Ubuntu 12.04 Server ping gateway responds with destination host unreachable

  - by blckblttkd

  I consider myself fairly avid with Ubuntu and Linux, but this one has me stumped. I built up a Xen Server using Ubuntu 12.04 as the base operating system. It has multiple domUs running on it. My home network has a statically defined network where I got all the network connectivity going peachy. The server was moved to a permanent home this morning. So, the network configuration on the main system had to change. Again, another static network, but now I can't ping the upstream gateway from the host. As the VMs use this NIC over a bridge, they too are broken. Ping responds with "destination host unreachable." I simplified the networking down to a simple static network as seen below (no bridge or anything) just to get it to work. Here's the contents of my /etc/network/interfaces file: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 216.7.188.228 gateway 216.7.188.225 netmask 255.255.255.240 broadcast 216.7.188.255 network 216.7.188.0 dns-nameservers 8.8.8.8 8.8.4.4 Here's the contents of route -n 0.0.0.0 216.7.188.225 0.0.0.0 UG 100 0 0 eth0 216.7.188.224 0.0.0.0 255.255.255.240 U 0 0 0 eth0 And the results of pinging the gateway: PING 216.7.188.225 (216.7.188.225) 56(84) bytes of data. From 216.7.188.228 icmp_seq=1 Destination Host Unreachable From 216.7.188.228 icmp_seq=1 Destination Host Unreachable From 216.7.188.228 icmp_seq=1 Destination Host Unreachable Again, this worked in one network flawlessly (obviously with different parameters in the interfaces file). I did try using eth1 (as there are two NICS on the server (in case the MAC address got flipped on bootup). No success there. Yes, the cable is in the right port now :) Any thoughts? I appreciate the help!

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• QA - Developer communication

  - by exiter2000

  I am a developer and have worked at this company 4~5 years by now. We have been practicing scrum for about 2 years. I think, I have been worked well with QAs. I believe QAs/developers/technical writers are all one team. We are also actively hiring new team members. As a legacy member of the team, I have faced to assist new member(including developers and testers) with my business knowledge. We work on 2 weeks base scrum. I usually deliver my user story completely by the first date of second week and do some qa build with partial functionality of my user story so that QA has a good idea about my implementation and flow. Recently, I have met some QAs. In first week, the QAs do not talk... In stand up meeting, they say they are developing test cases regardless I deliver the user story or not. In second week, I do not have a single defect till Thursday afternoon and suddenly I have a major defect with several minor UI defect, which I delivered one week ago. Or I have one or two minor defects on second week however major defects on Thursday afternoon or Friday morning. This eventually make the story rolls over to the next sprint. Major defect takes time to fix and more importantly it would trigger the regression test for the story... Even if I worked Thursday evening and fixed it, the testing will not finish. And this happens multiple times with certain QAs. As a same team member, I talked to the QAs if they could test major defect with higher priority... Rejected... Because I do not understand QA process.. So I asked roughly how many major test cases are covered so far in the stand up meeting on 2nd week Wednesday.. The response is I should not ask this to the QA in the stand up meeting... What do I do?

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• Automatic Generalization

  - by Nick Harrison

  I have been interested in functional programming since college. I played around a little with LISP back then, but I have not had an opportunity since then. Now that F# ships standard with VS 2010, I figured now is my chance. So, I was reading up on it a little over the weekend when I came across a very interesting topic. F# includes a concept called "Automatic Generalization". As I understand it, the compiler will look at your method and analyze how you are using parameters. It will automatically switch to a generic parameter if it is possible based on your usage. Wow! I am looking forward to playing with this. I have long been an advocate of using the most generic types possible especially when developing library classes. Use the highest level base class that you can get away with. Use an interface instead of a specific implementation. I don't advocate passing object around, but you get the idea. Tools like resharper, fxCop, and most static code analysis tools provide guidance to help you identify when a more generalized type is possible, but this is the first time I have heard about the compiler taking matters into its own hands. I like the sound of this. We'll see if it is a good idea or not. What are your thoughts? Am I missing the mark on what Automatic Generalization does in F#? How would this work in C#? Do you see any problems with this?

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