Setting Up

In this guide, we will be setting up our exploit project

by @99tracheae

Let's set up the project!

First we shall create a folder with the name of our exploit. I'll call it examploit

mkdir examploit

Now let's go ahead and initialize it

cd examploit && zig init

Now you will see 2 files and a folder. Delete src/root.zig and edit build.zig accordingly.

After you have done that let's edit main.zig and try printing hello world.

const std = @import("std");

pub fn main(init: std.process.Init) !void {
    // Create a buffer for writer, we don't want to spam syscalls that's slow af
    var stdout_buffer: [1024]u8 = undefined;
    // Create writer
    var stdout_writer = std.Io.File.stdout().writer(init.io, &stdout_buffer);
    // get the writer interface
    const stdout = &stdout_writer.interface;
    // print stuff, you can mix words in format string but I like to keep it separate
    try stdout.print("{s}{X}{c}", .{ "Hello World! I write ", 195936478, '\n' });
    // don't forget to flush the buffer
    try stdout.flush();
}

Now compile and run it with:

zig build run

Notice: by default this runs in DEBUG mode which can be slow, you can use ReleaseFast mode instead with:

zig build -Doptimize=ReleaseFast run

If the code ran successfully, you should get the message "Hello World! I write BADC0DE"

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