While basic I/O functions like read(), write(), and open() are sufficient for many tasks, high-performance or specialized applications often require advanced I/O techniques. In this article, we’ll...

Almost everything in Linux—whether it’s hardware devices, directories, or sockets—is treated as a file. The kernel provides a unified interface for file operations through system calls and the Virt...

“System programming involves developing software that provides core services to the operating system and hardware, enabling user applications to interact with system resources efficiently. It focus...

The kernel is the core component of an operating system that manages hardware resources and provides essential services to applications. In the world of operating systems, there are different types...

Welcome to “A Complete Guide to Linux System Programming” — a comprehensive journey into the heart of how Linux systems work under the hood. In today’s world, Linux is everywhere — from servers an...

Debugging is an essential skill for any software developer, and when it comes to Linux systems, it becomes even more critical. In Linux, the operating system is broadly divided into kernel space an...

Unlocking the bootloader of a smartphone is a crucial step for users who want to take complete control of their devices. Whether you’re interested in installing a custom ROM, rooting your phone, or...

/proc Filesystem The /proc filesystem (also known as procfs) is a virtual filesystem in Linux. It does not contain real files on disk. Instead, it provides runtime system information about the ker...

Fuzzing is a powerful technique for uncovering software vulnerabilities by feeding unexpected, malformed, or random inputs into a program. Among the many fuzzing tools available, Honggfuzz stands o...

Function hijacking is a technique used in programming to intercept calls to standard library functions and replace them with custom implementations. This report demonstrates how to hijack the puts ...