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  • Geoff's site: Keep it simple, stupid.
    impression and had to explain inserting into and deleting from linked lists on paper Afterwards I realized my interviewer didn t want a heavy object oriented linked list He wanted to make sure I knew the concept and pointers in C A simple struct node and a couple of loops would have done the job When I got home I was compelled to finish what I started I made the linked list anyway to prove to myself I could do it Here s the Xcode project and everything else that s necessary Obviously you don t need Xcode Compiling main cpp should do the trick on pretty much any system The linked list only has an AddToFront DeleteFromFront Next and GoBackToFront methods since that s about all you can do with a singly linked list I used templates so the thing could actually be useful if not for the total lack of documentation and testing Not to mention the fact that everyone writes one of these It does have an educational purpose though Since I made it spit output when nodes are added and deleted you can see how the destructor is implicitly called once the test object is out

    Original URL path: http://geoff.greer.fm/2007/03/06/keep-it-simple-stupid/ (2016-02-15)
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  • Geoff's site: Wget isn't as Evil as Hawaiian Airlines
    drive so I replayed the data and ran in through grep Lo and behold my name WAS in there Hawaiian Airlines was using the open wireless network to transfer passenger information What s worse is that their protocol was extremely simple Passengers on flights are listed as last name first name followed by seat number I searched for some nearby seat numbers and then asked the people if their names

    Original URL path: http://geoff.greer.fm/2006/12/28/wget-isnt-as-evil-as-hawaiian-airlines/ (2016-02-15)
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  • Geoff's site: Minesweeper... for OS X
    of Windows Minesweeper a while back It didn t detect right clicks properly and had some bugs in Safari but I fixed it and made it into a widget yet another instance of me standing on some else s shoulders Anyway anyone who wants it can click here Since the original Windows graphics are used there s probably some copyright infringement going on Oh well this screenshot makes it worth

    Original URL path: http://geoff.greer.fm/2006/09/29/minesweeper-for-os-x/ (2016-02-15)
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  • Geoff's site: Evil wget isn't as evil as regular wget
    Visual Studio 2005 but Microsoft gives away a free version that will work just as well for this purpose Wget depends on openssl to connect to secure http servers and openssl requires perl to build You can skip the whole installing ActivePerl step and grab a pre compiled version You ll want to get the zipped precompiled copy of OpenSSL linked to on that page After figuring this out I compiled evil wget for Windows You ll need the OpenSSL DLLs in the same directory Also evil wget is improved Now it fakes its User Agent to pretend to be IE 6 This means that clever admins who block by user agent are out of luck Blocking by IP is always an option though Source is here There are also binaries for OS X and Linux Both depend on OpenSSL By the way anyone using wget to retrieve files from a web server with password authentication should be careful Wget tries using basic authentication then digest auth if that fails Even if your web server is properly configured to use digest authentication wget will send your password out base64 encoded first Most sniffers will recognize the string is base64 encoded

    Original URL path: http://geoff.greer.fm/2006/08/15/evil-wget-isnt-as-evil-as-regular-wget/ (2016-02-15)
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  • Geoff's site: LSCOLORS=ExFxCxDxBxegedabagacad
    Directories are dark blue so they blend in very well with a black terminal background It s even worse if you re using a blue background such as the default Aqua background and a translucent terminal OS X uses a different format for its LSCOLORS environment variable than Linux so it s hard to figure out how to change the default colors and googling doesn t help much I threw together a JavaScript LSCOLORS generator as an exercise It probably works on most modern browsers I ve tested it in Safari and IE 7 but I make no guarantees I included a preview of what the colors will look like in a terminal The colors aren t perfect but it s not bad for toying around Also a note about why I have a bold checkbox for background colors bolding the background causes the color to be lighter bold brown is yellow in most terminals This is not reflected in the preview mostly because I don t know all the quirks about bold backgrounds If I m particularly interested I might add Linux LS COLORS to this also The options are much more complicated colors for any file extension blinking

    Original URL path: http://geoff.greer.fm/2006/08/01/lscolorsexfxcxdxbxegedabagacad/ (2016-02-15)
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  • Geoff's site: Sparkler bombs
    who lit the fuse and ran away I got to feel the heat of the fire and watch the audience glow white and Ooooooh at the display This year my friend Paul and I built three smaller ones around 600 sparklers each and managed to get some video The first one was set in a piece of steel pipe to try and direct the flames upward It worked fine but

    Original URL path: http://geoff.greer.fm/2006/07/06/sparkler-bombs/ (2016-02-15)
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  • Geoff's site: Content scrambling for... no particular reason.
    who said what or even when any person was in the channel or not The time stamps are still consistent but everything else is changed Usernames and content are pseudo randomly mixed up Even join part messages are in the wrong places making for a completely useless log at least for the person reading it Still a cursory glance of the logs doesn t raise any red flags It almost looks like there are 5 10 conversations going on at once and it s hard to figure out what s going on So I scrambled a copy of my logs since January and sent them over to Wikipedia Watch since they don t have anything from before April The guy I emailed didn t take the bait He found out by monitoring wikipedia where I mentioned my plan He also threw me on his hate list which is basically as much information he can find by googling someone s screenname along with some made up stuff He even took the copyrighted image from my user page on Wikipedia My script probably has quite a few bugs in it since I only coded it for my own Xchat logs I haven

    Original URL path: http://geoff.greer.fm/2006/06/15/content-scrambling-for-no-particular-reason/ (2016-02-15)
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  • Geoff's site: Evil wget
    Mar 2006 I got tired of wget obeying robots txt so I got rid of a lines of code in the source and recompiled It took me all of 5 minutes and most of that was waiting for evil wget to compile So to save others 5 minutes I ve thrown the new source and binaries up Deal or No Deal is a waste of an hour Content scrambling for

    Original URL path: http://geoff.greer.fm/2006/03/12/evil-wget/ (2016-02-15)
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