start of an implementation

1 files changed, 41 insertions, 0 deletions

diff --git a/src/command.rs b/src/command.rs
new file mode 100644
index 0000000..b2d8ef7
--- /dev/null
+++ b/src/command.rs
@@ -0,0 +1,41 @@
+use crate::error::*;
+
+use std::os::unix::io::{AsRawFd as _, FromRawFd as _};
+
+pub struct Command {
+    pty: crate::pty::Pty,
+    command: std::process::Command,
+}
+
+impl Command {
+    pub fn new<S: std::convert::AsRef<std::ffi::OsStr>>(
+        program: S,
+    ) -> Result<Self> {
+        let pty = crate::pty::Pty::new()?;
+        let fd = pty.master().as_raw_fd();
+        let stdin = unsafe { std::process::Stdio::from_raw_fd(fd) };
+        let stdout = unsafe { std::process::Stdio::from_raw_fd(fd) };
+        let stderr = unsafe { std::process::Stdio::from_raw_fd(fd) };
+        let mut command = std::process::Command::new(program);
+        command.stdin(stdin).stdout(stdout).stderr(stderr);
+        Ok(Self { pty, command })
+    }
+
+    pub fn pty(&self) -> &std::fs::File {
+        self.pty.slave()
+    }
+}
+
+impl std::ops::Deref for Command {
+    type Target = std::process::Command;
+
+    fn deref(&self) -> &Self::Target {
+        &self.command
+    }
+}
+
+impl std::ops::DerefMut for Command {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        &mut self.command
+    }
+}