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https://github.com/qixinynan/libloader

A easy-to-use dll loader for rust that based on libloading
https://github.com/qixinynan/libloader

rust

Last synced: 4 months ago
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A easy-to-use dll loader for rust that based on libloading

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README

          

Welcome to libloader 👋



Version

License: MIT


License: MIT

> libloader is a easy-to-use DLL loader for rust that based on libloading

It is very easy to dynamically call a function from dynamic link library (DLL files for Windows, so files for Unix/Linux dylib for macOS )

Use this function to get the function from DLL

```rust
get_libfn!(
"path.dll",
"func_name",
name_to_call,
return_type, // ifreturn type is none, use "()" instead
param1_name: param1_type
param2_name: param2_type
param3_name: param3_type
...
);
```

For example, We have these functions from libstd.dylib

```rust
// lib.rs (compiled into libstd.dylib)
#[no_mangle]
pub fn println(str: &str) {
println!("{}", str);
}

#[no_mangle]
pub fn add(a: usize, b: usize) -> usize {
a + b
}

#[no_mangle]
pub fn print_hello() {
println!("Hello");
}

```

We can call it with:

```rust
// main.rs
use libloader::libloading
fn main() {
get_libfn!("libstd.dylib", "println", my_println, (), str: &str);
my_println("Hello World");

get_libfn!("libstd.dylib", "add", my_add, usize, a: usize, b: usize);
println!("10 + 20 = {}", my_add(10, 20));

get_libfn!("libstd.dylib", "print_hello", my_print_hello, ());
my_print_hello();
}
```

The output is:
```
Hello World
10 + 20 = 30
hello
```