How To: Security-Oriented C Tutorial 0x15 - File I/O
Hello readers, in this tutorial, we will be discussing how to perform file operations such as reading and writing.
Hello readers, in this tutorial, we will be discussing how to perform file operations such as reading and writing.
What's up readers? We have ever so slightly touched upon this concept of scope with variables but still don't really know what it means. In this tutorial we will learn the behaviors of variables existing in our programs and within functions.
In recent weeks, some people have been shunned from the Null Byte community because they expressed "black hat" aspirations. This is because Null Byte is the "white hat" hacker training/playground. Although most of us think we know what that means, it does beg the question; "Who and what is a white hat hacker?"
Welcome back, my greenhorn hackers! As expected with Null Byte's dramatic growth over the last year, we have added many new aspiring hackers who are still lacking in the basics of networking. In addition, with the new "White Hat" certifications coming out shortly, the exam will require some basic networking skills and knowledge to pass.
We're near the end of a productive year for Apple, one that introduced a new Apple TV, the iPad Mini 4 (in conjunction with the Apple Pen), the iPad Pro, and the iPhone 6S and 6S Plus, as well as iOS 9. Now, the second major update to iOS 9—version 9.2—has just been released to the public.
The morning started out like most of them do: I was hungry, and it was time to chow down on some breakfast. However, this particular morning had me craving something besides the usual milk and cereal.
Microsoft's Windows 10 has proven to be a solid release by Microsoft, with faster adoption rates than its predecessor builds. The seamless integration of cloud services and tweaks both major and minor make using Windows easier than ever now. And it's almost enough to forget you ever used Windows Vista... almost.
Microsoft's "Fall Update" to Windows 10, code named Threshold 2, has a lot of new tricks up its sleeve. It's the biggest update we've seen since Windows 10 was released this summer, and it's rolling out to all users right now.
Garlic is magical. It fends off vampires (or so I hear), helps lower blood pressure, reduces the production of cholesterol in the body... oh, and it's also freaking delicious, of course. Garlic is a culinary staple in countries all over the world. That lovable stink and sharp bite of flavor are essential to many dishes we know and love today, from spaghetti to sesame chicken.
Of all the new features in Android 6.0 Marshmallow, an automatic battery-saving function called "Doze" might just be the most interesting. What it all boils down to is that if you set your phone down on a flat surface, the device uses internal sensors to detect that it's motionless and not in use, then responds by drastically scaling back battery-sucking services until the next time you pick your phone up.
There are few things more satisfying than fulfilling a craving with instant gratification. Companies like Pillsbury and have made this possible with the introduction of their famous Ready to Bake Cookies line: just rip open the package, break off the cookies along the creased lines, place on a cookie sheet, and bake.
Samsung's Galaxy series of devices have one common design theme that ties them all together—the physical home button at the bottom of the phone. This button can wake the phone, take you to your home screen, and even scan your fingerprint to securely unlock your device.
I love brownies. Through the turmoil of my teenage years and the raucous over-eating of my college years to now, brownies have been a constant companion to my highs and (calorie-laden) lows. I've made brownies from scratch, I've used the box mix... hell, I was a baker at a bakery that specialized in brownies. So yeah... I'd say I'm pretty familiar with them.
If there's one thing that gets used far too frequently in the modern kitchen, it's the trash can. Home cooks everywhere waste enormous amounts of food by throwing it away before it's actually ready to be tossed.
Live Photos is exclusive to the iPhone 6S and 6S Plus models, and provides a new dimension to your pictures. When taking a picture, the camera captures moments immediately right before and after you hit the shutter, creating a GIF-like animation that's approximately three seconds long when combined.
Black lights come in all shapes and sizes, and they're useful in a variety of ways. They can help you spot fake currency, urine stains, interesting rocks, and deadly scorpions, and they can even help you view cool fluorescent artwork.
Butter is one of the most versatile ingredients in the world: its variety of uses range from brightening a morning piece of toast to finishing a beautiful rib-eye steak with decadent flair.
Android has a brand new mobile payments system, and it's rolling out to most devices as we speak. Android Pay, as it's called, will replace the existing Google Wallet app as an update, and it brings some awesome new functionality such as tokenization and the ability to tap-and-pay by simply unlocking your phone.
Like a strong-tasting cup of joe, but want more caffeine out of it? Start double brewing your coffee. To paraphrase a big fan of the double brew process on Reddit, it'll make you feel like you can throw an orange at 60 percent the speed of light. It's that strong. Really.
Apple's unveiling of the iPhone 6S, iPhone 6S Plus, Apple TV, and iPad Pro dominated the news today, but at the end of their special September 9th event, they quietly released the final version of iOS 9 to developers, called the Gold Master (GM) build.
Initially reluctant to port Firefox over to iOS, Mozilla has finally released the first public preview of their famed web browser. While this is great news for all Firefox users, the bad news is that the browser is currently available for download only in New Zealand.
In an age where restaurants can charge $20 for eggs Benedict at brunchtime (if you're lucky enough to even get a reservation on a Sunday), many people long for a way to create this classic dish at home. But once you've taken pains to perfectly poach an egg and gently crisp your sourdough, the problem of the hollandaise still lies before you. The key to any good hollandaise sauce is to apply enough heat to cook the egg yolks, but not enough to scramble them. The minute the eggs begin to solidi...
When attempting to gain access to a server, there may come a point when you need to get around file upload restrictions to upload something. If we can find a way to get around the restrictions, then we can upload anything we want to the server, effectively compromising it. That is what we'll be doing here today, so let's get started!
Welcome back, my novice hackers! Episode 6 of Mr. Robot has come and gone and, as usual, it did not disappoint. Once again, our hero, Elliot, has used his extraordinary intellect and hacking skills to awe and inspire us.
When attempting to run a script, it can be rather inconvenient to have to locate the script, and run it time and time again. What if there were a way to run a script from anywhere. Well that's what we'll be doing today. This can be useful for any scripts you use frequently, it can save you time by removing the need to locate and execute.
In my opinion, there is nothing in the culinary world as satisfying as cutting into a steak, and seeing that you've cooked it to perfection. Even if you're one of those bizarre people that prefers their steak medium or well done (hey, no judgement... okay, fine, a little bit of judgement), it's culinary heaven when you realize that you achieved the perfect doneness on your steak.
This decadent dessert is inspired and created by marrying tiramisu and s'mores. It's a moan-worthy version of that classic English dessert, trifle, that combines the soft, creamy layers of tiramisu with the gooey, sticky goodness of s'mores. You can make it as easy as you wish, with store-bought whipped cream and pound cake, or you can make everything from scratch for a special company-ready dessert.
Welcome back, my tenderfoot hackers! In this series, we are exploring the myriad of ways to hack web applications. As you know, web applications are those apps that run the websites of everything from your next door neighbor, to the all-powerful financial institutions that run the world. Each of these applications is vulnerable to attack, but not all in the same way.
The day has finally come, and after quite a bit of hype and buildup, Windows 10 is now officially available. The update itself is on a staged rollout, which means it will be slowly becoming available to users over the coming weeks and months, so don't panic if you haven't already received an update notification. Besides, you have until July 29th, 2016 to download your free copy of Windows 10 if you're eligible, so there's plenty of time to get your ducks in a row.
Quite a few things have changed with Windows 10, but one of the more central features that has received a makeover is the old Windows Explorer program, which has been renamed to File Explorer in this version.
When I finally saved up some cash and got my first good chef's knife, I vowed to do everything by the book: clean it properly, hone it regularly, sharpen it faithfully, stand by it in sickness and in health, blah blah blabbity blah.
Most primary cocktail ingredients just sound delicious. Lime and tonic water? Yes, please. Bitters and simple syrup? Sign me up. Egg whites and... wait... egg whites? In a cocktail?
Barbecue season: it's the perfect time to play with fire, produce your best burger ever (until next year, that is), and find even more ways to make beer a part of your daily life. However, even a grilling badass occasionally gets stumped by minor BBQ problems. No worries: We've got solutions!
When you think of bivalves, such as manila clams and oysters, you tend to think of the meat as being nicely tucked in the shell. Anything else would be scary, right?
Brought to you by Purdy Paints The art of painting requires excellent tools. And with so many options on the market, it can be hard to find a brand that works for you and your DIY project. That's where Purdy comes in.
Oatmeal isn't the most glamorous breakfast, but it's definitely one of the best. It's healthy, filling, delicious, and easy to personalize. And, if you have instant packets, oatmeal is also a very quick and easy breakfast.
If you couldn't wait to test drive iOS 9 before its official release this fall, you probably have the beta software on your iPhone right now. However, if you're not a fan of all the bugs and glitches that accompanies it, it's not too late—you can still downgrade back to the latest version of iOS 8.
Ice pops are like summer on a stick, with all the sweetness and stickiness of July and August. Store-bought popsicles, although refreshing, are never as good as homemade. So it's time to up your popsicle game with some of these beautiful creations, including some boozy pops (poptails) for adults.
Boasting over 800 million users a month, WhatsApp has quickly become one of the most popular messaging services available today. Thanks to its low price, ease of use, lack of ads, cross-platform functionality, and great features, its popularity is well-deserved.
Tomatoes are the perfect barometer for kitchen knives and knife skills. If you've ever watched an infomercial for a set of knives, you've surely seen the enthusiastic host waxing about how well the knives cut tomatoes. And if you've ever had your knives sharpened, you've most likely tested them out on a tomato.