1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181

// 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)]
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::*;