feature: Ctrl+C signal to foreground pgid

libusr/src/io/mod.rs

@@ -1,7 +1,11 @@
 use libsys::{
-    calls::sys_fstatat,
+    calls::{sys_fstatat, sys_ioctl},
     stat::{FileDescriptor, Stat},
+    ioctl::IoctlCmd,
+    error::Errno,
+    proc::Pid
 };
+use core::mem::size_of;
 use core::fmt;
 
 mod error;
@@ -24,6 +28,14 @@ pub trait AsRawFd {
     fn as_raw_fd(&self) -> FileDescriptor;
 }
 
+pub fn tcgetpgrp(fd: FileDescriptor) -> Result<Pid, Errno> {
+    todo!()
+}
+
+pub fn tcsetpgrp(fd: FileDescriptor, pgid: Pid) -> Result<(), Errno> {
+    sys_ioctl(fd, IoctlCmd::TtySetPgrp, &pgid as *const _ as usize, size_of::<Pid>()).map(|_| ())
+}
+
 pub fn stat(pathname: &str) -> Result<Stat, Error> {
     let mut buf = Stat::default();
     // TODO error handling

libusr/src/sys/mod.rs

@@ -1,5 +1,5 @@
 pub use libsys::signal::{Signal, SignalDestination};
-pub use libsys::proc::ExitCode;
+pub use libsys::proc::{self, ExitCode};
 pub use libsys::termios;
 pub use libsys::abi;
 pub use libsys::calls::*;