Function call_module_entry_point

dumpy/dinvoke/src/lib.rs:136–162

Calls the module's entry point with the option DLL_ATTACH_PROCESS. # Examples ```ignore let pe = manualmap::read_and_map_module("c:\\some\\random\\file.dll").unwrap(); let ret = dinvoke::call_module_entry_point(&pe.0, pe.1); ```

(pe_info: &PeMetadata, module_base_address: isize)

///    let ret = dinvoke::call_module_entry_point(&pe.0, pe.1);
/// ```
pub fn call_module_entry_point(pe_info: &PeMetadata, module_base_address: isize) -> Result<(), String> {

    let entry_point: isize;
    if pe_info.is_32_bit 
    {
        entry_point = module_base_address + pe_info.opt_header_32.AddressOfEntryPoint as isize;
    }
    else 
    {
        entry_point = module_base_address + pe_info.opt_header_64.address_of_entry_point as isize;

    }

    unsafe 
    {
        let main: EntryPoint = std::mem::transmute(entry_point);
        let module = HINSTANCE {0: entry_point as isize};
        let ret = main(module, DLL_PROCESS_ATTACH, ptr::null_mut());

        if !ret.as_bool()
        {
            return Err(lc!("[x] Failed to call module's entry point (DllMain -> DLL_PROCESS_ATTACH)."));
        }

        Ok(())
    }
}

/// Retrieves the address of an exported function from the specified module by its ordinal.
///