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use std::os::raw::c_int; #[derive(PartialEq,Eq,Debug)] pub enum Error { UnsupportedPlatform, Other(c_int), } pub enum Promise { Audio, Chown, CPath, DiskLabel, Dns, DPath, Drm, Exec, Fattr, Flock, Getpw, Id, Inet, Ioctl, MCast, Pf, Proc, ProtExec, Ps, Recvfd, Route, RPath, Sendfd, Settime, Stdio, TMPPath, Tty, Unix, Vminfo, Vmm, WPath, } impl Promise { pub fn to_promise_string(&self) -> &'static str { return match *self { Promise::Audio => "audio", Promise::Chown => "chown", Promise::CPath => "cpath", Promise::DiskLabel => "disklabel", Promise::Dns => "dns", Promise::DPath => "dpath", Promise::Drm => "drm", Promise::Exec => "exec", Promise::Fattr => "fattr", Promise::Flock => "flock", Promise::Getpw => "getpw", Promise::Id => "id", Promise::Inet => "inet", Promise::Ioctl => "ioctl", Promise::MCast => "mcast", Promise::Pf => "pf", Promise::Proc => "proc", Promise::ProtExec => "prot_exec", Promise::Ps => "ps", Promise::Recvfd => "recvfd", Promise::Route => "route", Promise::RPath => "rpath", Promise::Sendfd => "sendfd", Promise::Settime => "settime", Promise::Stdio => "stdio", Promise::TMPPath => "tmppath", Promise::Tty => "tty", Promise::Unix => "unix", Promise::Vminfo => "vminfo", Promise::Vmm => "vmm", Promise::WPath => "wpath", }; } } pub trait ToPromiseString { fn to_promise_string(&self) -> String; } impl ToPromiseString for [Promise] { fn to_promise_string(&self) -> String { return self.iter() .map(|p| p.to_promise_string()) .collect::<Vec<&'static str>>() .join(" "); } } #[cfg(any(target_os = "bitrig", target_os = "openbsd"))] mod openbsd; #[cfg(any(target_os = "bitrig", target_os = "openbsd"))] pub use openbsd::pledge_with_paths; #[cfg(not(any(target_os = "bitrig", target_os = "openbsd")))] pub fn pledge_with_paths(_: &str, _: &[&std::path::Path]) -> Result<(), Error> { return Err(Error::UnsupportedPlatform); } pub fn pledge(promises: &str) -> Result<(), Error> { return pledge_with_paths(promises, &[]); } #[macro_export] macro_rules! pledge { ( $( $x:ident ),* ) => { { let mut promises = Vec::new(); $( promises.push(Promise::$x); )* let promises_str = promises.to_promise_string(); pledge(&promises_str) } }; } #[cfg(test)] mod tests { use super::{Promise, ToPromiseString, pledge}; #[test] fn test_promise_str() { use super::ToPromiseString; assert_eq!(vec![].to_promise_string(), ""); assert_eq!(vec![Promise::Dns].to_promise_string(), "dns"); assert_eq!(vec![Promise::Stdio, Promise::ProtExec].to_promise_string(), "stdio prot_exec"); } #[test] #[cfg(not(any(target_os = "bitrig", target_os = "openbsd")))] fn test_pledge_unsupported() { use super::Error; assert_eq!(pledge![Stdio].unwrap_err(), Error::UnsupportedPlatform); } #[test] #[cfg(any(target_os = "bitrig", target_os = "openbsd"))] fn test_pledge_supported() { pledge![Stdio].unwrap(); assert!(pledge![Stdio, Audio].is_err()); } #[test] #[cfg(target_os = "openbsd")] fn test_as_string() { if pledge("stdio").is_err() { panic!("pledge"); } println!("hello world"); } }