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# Rust bindings to *nix APIs
[](https://travis-ci.org/nix-rust/nix)
[](https://crates.io/crates/nix)
[Documentation](https://nix-rust.github.io/nix/nix/index.html)
Nix seeks to provide friendly bindings to various *nix platform APIs (Linux, Darwin,
...). The goal is to not provide a 100% unified interface, but to unify
what can be while still providing platform specific APIs.
For many system APIs, Nix provides a safe alternative to the unsafe APIs
exposed by the [libc crate](https://github.com/rust-lang/libc). This is done by
wrapping the libc functionality with types/abstractions that enforce legal/safe
usage.
As an example of what Nix provides, examine the differences between what is
exposed by libc and nix for the
[gethostname](http://man7.org/linux/man-pages/man2/gethostname.2.html) system
call:
```rust,ignore
// libc api (unsafe, requires handling return code/errno)
pub unsafe extern fn gethostname(name: *mut c_char, len: size_t) -> c_int;
// nix api (returns a nix::Result)
pub fn gethostname(name: &mut [u8]) -> Result<()>;
```
## Usage
To use `nix`, first add this to your `Cargo.toml`:
```toml
[dependencies]
nix = "0.7.0"
```
Then, add this to your crate root:
```rust,ignore
extern crate nix;
```
## Contributing
Contributions are very welcome. Please See [CONTRIBUTING](CONTRIBUTING.md) for
additional details.
## License
Nix is licensed under the MIT license. See [LICENSE](LICENSE) for more details.
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