Unable to find method 'prepare' (#23)

[impost0r]

Referencing this: #23

Current working directory is just the fpicker root.

script goes a bit like this

import { Fuzzer } from "./harness/fuzzer.js"; //relative path

class VMWareFuzzer extends Fuzzer {
    constructor() {
        // The constructor needs to specify the address of the targeted function and a NativeFunction
        // object that can later be called by the fuzzer.

        // Usually you would use:
        //     const proc_fn_addr = Module.getExportByName(null, "proc_fn");
        // However, there are cases where the symbol is not an export. We can still find it by enumerating
        // all symbols and filtering for the one we're looking for.
        const proc_fn_addr = Module.enumerateSymbolsSync("stuff").filter(function(o) {return o.name == "stuff";})[0].address;
        //const proc_fn_addr = Module.getExportByName(null, "MKSMM_Calloc");
        const proc_fn = new NativeFunction(
            proc_fn_addr,
            "int64", ["uint", "int64", "int64"], {
        });

        // The constructor needs:
        //      - the module name
        //      - the address of the targeted function
        //      - the NativeFunction object of the targeted function
        super("process", proc_fn_addr, proc_fn);
    }

    // The pepare function is called once the script is loaded into the target process in case any
    // preparation or state setup is required. In this case, no preparation is needed (see the bluetoothd
    // example for a preparation function that does something)
    prepare() { 
        // No preparation needed
    }

    // This function is called by the fuzzer with the first argument being a pointer into memory
    // where the payload is stored and the second the length of the input.
    fuzz(payload, len) {
        this.debug_log(payload, len);
        this.target_function(payload, parseInt(len));
    }

}

const f = new VMWareFuzzer();
rpc.exports.fuzzer = f;

Also a secondary error:

[->] error: {"type":"error","description":"TypeError: cannot read property 'address' of undefined","stack":"TypeError: cannot read property 'address' of undefined\n    at VMWareFuzzer (harness.js:12)\n    at <anonymous> (harness.js:41)","fileName":"harness.js","lineNumber":12,"columnNumber":1}

The module does have symbols but is they're not visual via nm. So how would I go about calling those?

[Noi98]

Have you found a solution for it?

[impost0r]

I've not been working on the project for a while now, so I haven't.