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vmprotect

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Unofficial Rust SDK for VMProtect

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# vmprotect ![crates.io](https://img.shields.io/crates/v/vmprotect.svg)

WIP VMProtect SDK for rust

## Basic VMProtect features

### `protected` attribute

You need to add [this script](./script.lua) to vmprotect project for this attribute

Syntax:

```rust
#[protected(TYPE[, lock])]
fn some_fn() { ... }
```

- TYPE: Protection type
- [, lock]: Require license to get this function to work.

Example:

```rust
#[protected(virtualize)]
fn stringify<T: Display>(value: T) -> String {
    format!("{}", value)
}
```

### `protected!` macro for code

Syntax:

```rust
use vmprotect::protected;

protected!(TYPE[, lock] "NAME"; { /*CODE*/ })
```

- NAME: Which name will be displayed in VMProtect GUI
- TYPE: Protection type (mutate/virtualize/ultra per VMProtect docs)
- [, lock]: For virtualize/ultra only, require license activation to get this function to work
- CODE: Your code goes here

Protected code block is works like any other rust block, i.e:

```rust
use vmprotect::protected;

// Before protection
let a = {2+3};
// After protection
let a = protected!(virtualize "Addiction"; { 2 + 3 });
```

Example:

```rust
fn main() {
    println!("{} + {} = {}", a, b, protected!(ultra "Adding"; {
        a + b
    }));
}
```

### `protected!` macro for texts

Syntax:

```rust
use vmprotect::protected;

protected!(TYPE "TEXT")
```

- TYPE: Text type, possible values: cstr (for normal c strings)/cwstr (for uint16_t c strings (Used i.e in windows))
- TEXT: Your text, should be supported by your selected text type

This macro returns string, which can be transformed to normal one. This string is freed when dropped, implementations is located at `vmprotect::strings::{encrypted_a::EncryptedStringA, encrypted_w::EncryptedStringW}`

```rust
use vmprotect::protected;

// Before protection
let a = "Hello, world!";
// After protection
let a = protected!(cstr "Hello, world!");
// Also for wide-strings:
let a = protected!(cwstr "Привет, мир!");
```

Example:

```rust
use vmprotect::protected;

fn main() {
    println!("Hello, {:?}!", protected!(A; "%Username%").into() as String);
}
```

## Licensing

TODO Section, see docs for now

### HWID

Example:

```rust
println!("Your hwid is \"{}\"", vmprotect::licensing::get_hwid().to_str().unwrap());
```

## Known problems

### MacOS: Not enough space for the new segment in the file header

Can be fixed by adding `-C link-arg=-Wl,-headerpad,0x500` to rustc args

For cargo:

```rs
export RUSTFLAGS="-C link-arg=-Wl,-headerpad,0x500"
```

(Based on <http://vmpsoft.com/forum/viewtopic.php?f=2&t=6837&start=15#p10527>)