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// Copyright (c) 2020 Xu Shaohua <shaohua@biofan.org>. All rights reserved. // Use of this source is governed by Apache-2.0 License that can be found // in the LICENSE file. //! Execute system call directly. `nc` do not depend on `std`. //! //! - [Documentation](https://docs.rs/nc) //! - [Release notes](https://github.com/xushaohua/nc/releases) //! //! ## Usage //! Add this to `Cargo.toml`: //! ```toml //! [dependencies] //! nc = "0.7" //! ``` //! //! ## Examples //! Get file stat: //! ```rust //! let mut statbuf = nc::stat_t::default(); //! match nc::stat("/etc/passwd", &mut statbuf) { //! Ok(_) => println!("s: {:?}", statbuf), //! Err(errno) => eprintln!("Failed to get file status, got errno: {}", errno), //! } //! ``` //! //! Fork process: //! ```rust //! let pid = nc::fork(); //! match pid { //! Ok(pid) => { //! if pid == 0 { //! println!("child process: {}", pid); //! let args = [""]; //! let env = [""]; //! match nc::execve("/bin/ls", &args, &env) { //! Ok(_) => {}, //! Err(errno) => eprintln!("`ls` got err: {}", errno), //! } //! } else if pid < 0 { //! eprintln!("fork() error!"); //! } else { //! println!("parent process!"); //! } //! }, //! Err(errno) => eprintln!("errno: {}", errno), //! } //! ``` //! //! Kill self: //! ```rust //! let pid = nc::getpid(); //! let ret = nc::kill(pid, nc::SIGTERM); //! // Never reach here. //! println!("ret: {:?}", ret); //! ``` //! //! Or handle signals: //! ```rust //! fn handle_alarm(signum: i32) { //! assert_eq!(signum, nc::SIGALRM); //! } //! //! fn main() { //! let ret = nc::signal(nc::SIGALRM, handle_alarm as nc::sighandler_t); //! assert!(ret.is_ok()); //! let remaining = nc::alarm(1); //! let ret = nc::pause(); //! assert!(ret.is_err()); //! assert_eq!(ret, Err(nc::EINTR)); //! assert_eq!(remaining, 0); //! } //! ``` //! //! ## Stable version //! For stable version of rustc, please install a C compiler (`gcc` or `clang`) first. //! As `asm!` feature is unavailable in stable version. //! //! ## Platforms and Architectures //! - Linux //! - [x] x86 //! - [x] x86-64 //! - [x] arm //! - [x] aarch64 //! - [x] mips //! - [x] mipsel //! - [x] mips64 //! - [x] mips64el //! - [x] powerpc64 //! - [x] s390x //! //! Current work is focused on linux networking. //! FreeBSD and other OS are unavailable yet. //! //! //! ## Related projects //! * [nix][nix] //! * [syscall][syscall] //! * [relibc][relibc] //! //! [syscall]: https://github.com/kmcallister/syscall.rs //! [relibc]: https://gitlab.redox-os.org/redox-os/relibc.git //! [nix]: https://github.com/nix-rust/nix #![allow(dead_code)] #![no_std] #![cfg_attr(has_asm, feature(llvm_asm))] #[macro_use] extern crate alloc; #[cfg(test)] #[macro_use] extern crate std; pub mod c_str; pub mod syscalls; pub use syscalls::Errno; #[cfg(target_os = "freebsd")] #[path = "platform/freebsd-types/mod.rs"] pub mod types; #[cfg(target_os = "netbsd")] #[path = "platform/netbsd-types/mod.rs"] pub mod types; #[cfg(target_os = "linux")] #[path = "platform/linux-types/mod.rs"] pub mod types; #[cfg(all(target_os = "linux", target_arch = "aarch64"))] #[path = "platform/linux-aarch64/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "arm"))] #[path = "platform/linux-arm/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "mips"))] #[path = "platform/linux-mips/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "mips64"))] #[path = "platform/linux-mips64/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "powerpc64"))] #[path = "platform/linux-ppc64/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "s390x"))] #[path = "platform/linux-s390x/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "x86"))] #[path = "platform/linux-x86/mod.rs"] mod platform; #[cfg(all(target_os = "linux", target_arch = "x86_64"))] #[path = "platform/linux-x86_64/mod.rs"] mod platform; #[cfg(all(target_os = "freebsd", target_arch = "x86"))] #[path = "platform/freebsd-x86/mod.rs"] mod platform; #[cfg(all(target_os = "freebsd", target_arch = "x86_64"))] #[path = "platform/freebsd-x86_64/mod.rs"] mod platform; #[cfg(all(target_os = "netbsd", target_arch = "x86"))] #[path = "platform/netbsd-x86/mod.rs"] mod platform; #[cfg(all(target_os = "netbsd", target_arch = "x86_64"))] #[path = "platform/netbsd-x86_64/mod.rs"] mod platform; // Re-export functions pub use platform::*; pub use types::*;