Linux is a popular, open source operating system kernel. Linus Torvalds started development of the kernel in 1991.

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Overwriting a C system after exec? [closed]

So I used wrap to override the malloc call in my program, I didn't think that if I exec'd another it would work, and it didn't. I figure this is because it wasn't linked with my program. How could I ...
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23 views

Monitoring interfaces and subscribing to multicast on them

How can a program enumerate the available IP interfaces, and monitor changes in them, to subscribe to and send IP multicasts on all of them? I ask because I am troubleshooting a problem with the ...
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37 views

Best way to update driver data from userspace

I have a userspace application which interacts with a kernel-space driver in a Linux environment. The driver, in this case, is an LED driver. In typical *nix fashion, the driver exposes a file in ...
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69 views

A callback for when data is received?

So, my understanding is that the Kernel could receive TCP at any time, and that generally a C program asks the Kernel synchronously/asynchronously if it has data available. Would it be possible for a ...
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64 views

How to package a SDL2-based Linux app?

I've written a small toy application using SDL2. I want to distribute it the most user-friendly way, for Linux. I should make a deb package, but then I should also make packages for other distros, ...
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538 views

Best way to signal all child processes to terminate using C

I have been assigned the task of designing a simple web server using C in my UNIX & C class. The webserver listens and forks when a successful connection is made so that multiple clients may be ...
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1answer
281 views

Are ANSI* Escape Sequences Proper For Coloring Text in Terminal(Linux)?

I just switched back to Linux after a few years of Windows use and am wondering if ANSI Escape Sequences are okay for coloring text. I ask because the way I did it on windows isn't capable of crossing ...
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1answer
561 views

How to reconstruct this application using design pattern

I am engaging in redesigning a linux c++ server application. The application acts as file relayer in the form of receiving file packets (incuding control packets and data packets) from client A, ...
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1answer
260 views

Linux kernel development

I am trying to understand the linux kernel and there is one thing that is puzzling me for quite a while. As linux is used across variety of platforms (like smartphones,desktop,supercomputers etc) and ...
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1answer
1k views

Belkin device runs Linux, how can I create my own custom firmware for it? [closed]

The Belkin N300 F9K1002 firmware is located here. It does not appear to be encrypted. How can I upload my own custom Linux firmware to this device. How would I go about hacking it?
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3answers
378 views

Programming in Linux (C++) [closed]

So I don't know If this is the right place to ask this. I am new to programming, I am not very in to it (I know classes,arrays,functions..etc(Basic Things)). I was programming with Visual Studio 2013 ...
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1answer
64 views

Linux equivalent to Visual Studio “Debug -> Attach To Process”? [closed]

I work in a team of .Net web developers. One of my colleagues mentioned that in Linux there is nothing like the feature in Visual Studio where you can set debugging breakpoints in server code, then ...
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3answers
404 views

Why should PHP developer use/learn VI editor? [closed]

Why should PHP developer use/learn VI editor ? I mean there are 10 most amazing editors like PHPStorm, Netbeans which increases developers productivity. Lets just consider PHPStorm. I never got ...
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2answers
406 views

Best x86 processor(computer) to learn computer architecture and assembly [closed]

I'm planning to build a computer as a hobby from scratch, with the least basic hardware possible in functionality so I can learn the basics of computer architecture and assembly language. I already ...
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votes
1answer
69 views

dma allocation in kernel 4g patch theory [closed]

I was reading about that that old patch. The summary of that link is to create a 4Gb kernel space, instead of 1Gb by default. Since many dma capable devices can only access 32 bit addresses or 4Gb, ...