Playground for dumping text section with __launchd_plist

DumpPlistTextSection.swift

import Cocoa
import MachO

if let handle = dlopen("/Applications/App.app/Contents/MacOS/some.helper.binary", RTLD_LAZY) {
    defer { dlclose(handle) }

    if let ptr = dlsym(handle, MH_EXECUTE_SYM) {
        let mhExecHeaderPtr = ptr.assumingMemoryBound(to: mach_header_64.self)

        var size: UInt = 0
        if let plistSection = getsectiondata(
            mhExecHeaderPtr,
            "__TEXT",
            "__launchd_plist",
            &size) {
            let plistSectionStr = String.init(cString: plistSection)

            print("\(plistSectionStr)")
        } else {
            print("Text section not found")
        }
    } else {
        print("Cannot dlsym")
    }
} else {
    print("Cannot dlopen!")
}