1 files changed, 0 insertions, 330 deletions
diff --git a/vendor/rustix/src/backend/linux_raw/termios/syscalls.rs b/vendor/rustix/src/backend/linux_raw/termios/syscalls.rs
deleted file mode 100644
index 5a24c0a..0000000
--- a/vendor/rustix/src/backend/linux_raw/termios/syscalls.rs
+++ /dev/null
@@ -1,330 +0,0 @@
-//! linux_raw syscalls supporting `rustix::termios`.
-//!
-//! # Safety
-//!
-//! See the `rustix::backend` module documentation for details.
-#![allow(unsafe_code, clippy::undocumented_unsafe_blocks)]
-
-use crate::backend::c;
-use crate::backend::conv::{by_ref, c_uint, ret};
-use crate::fd::BorrowedFd;
-use crate::io;
-use crate::pid::Pid;
-#[cfg(all(feature = "alloc", feature = "procfs"))]
-use crate::procfs;
-use crate::termios::{
-    Action, ControlModes, InputModes, LocalModes, OptionalActions, OutputModes, QueueSelector,
-    SpecialCodeIndex, Termios, Winsize,
-};
-#[cfg(all(feature = "alloc", feature = "procfs"))]
-use crate::{ffi::CStr, fs::FileType, path::DecInt};
-use core::mem::MaybeUninit;
-use linux_raw_sys::general::IBSHIFT;
-use linux_raw_sys::ioctl::{
-    TCFLSH, TCSBRK, TCXONC, TIOCGPGRP, TIOCGSID, TIOCGWINSZ, TIOCSPGRP, TIOCSWINSZ,
-};
-
-#[inline]
-pub(crate) fn tcgetwinsize(fd: BorrowedFd<'_>) -> io::Result<Winsize> {
-    unsafe {
-        let mut result = MaybeUninit::<Winsize>::uninit();
-        ret(syscall!(__NR_ioctl, fd, c_uint(TIOCGWINSZ), &mut result))?;
-        Ok(result.assume_init())
-    }
-}
-
-#[inline]
-pub(crate) fn tcgetattr(fd: BorrowedFd<'_>) -> io::Result<Termios> {
-    unsafe {
-        let mut result = MaybeUninit::<Termios>::uninit();
-
-        // QEMU's `TCGETS2` doesn't currently set `input_speed` or
-        // `output_speed` on PowerPC, so zero out the fields ourselves.
-        #[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))]
-        {
-            result.write(core::mem::zeroed());
-        }
-
-        ret(syscall!(__NR_ioctl, fd, c_uint(c::TCGETS2), &mut result))?;
-
-        let result = result.assume_init();
-
-        // QEMU's `TCGETS2` doesn't currently set `input_speed` or
-        // `output_speed` on PowerPC, so set them manually if we can.
-        #[cfg(any(target_arch = "powerpc", target_arch = "powerpc64"))]
-        let result = {
-            use crate::termios::speed;
-            let mut result = result;
-            if result.output_speed == 0 && (result.control_modes.bits() & c::CBAUD) != c::BOTHER {
-                if let Some(output_speed) = speed::decode(result.control_modes.bits() & c::CBAUD) {
-                    result.output_speed = output_speed;
-                }
-            }
-            if result.input_speed == 0
-                && ((result.control_modes.bits() & c::CIBAUD) >> c::IBSHIFT) != c::BOTHER
-            {
-                // For input speeds, `B0` is special-cased to mean the input
-                // speed is the same as the output speed.
-                if ((result.control_modes.bits() & c::CIBAUD) >> c::IBSHIFT) == c::B0 {
-                    result.input_speed = result.output_speed;
-                } else if let Some(input_speed) =
-                    speed::decode((result.control_modes.bits() & c::CIBAUD) >> c::IBSHIFT)
-                {
-                    result.input_speed = input_speed;
-                }
-            }
-            result
-        };
-
-        Ok(result)
-    }
-}
-
-#[inline]
-pub(crate) fn tcgetpgrp(fd: BorrowedFd<'_>) -> io::Result<Pid> {
-    unsafe {
-        let mut result = MaybeUninit::<c::pid_t>::uninit();
-        ret(syscall!(__NR_ioctl, fd, c_uint(TIOCGPGRP), &mut result))?;
-        let pid = result.assume_init();
-
-        // This doesn't appear to be documented, but it appears `tcsetpgrp` can
-        // succceed and set the pid to 0 if we pass it a pseudo-terminal device
-        // fd. For now, fail with `OPNOTSUPP`.
-        if pid == 0 {
-            return Err(io::Errno::OPNOTSUPP);
-        }
-
-        Ok(Pid::from_raw_unchecked(pid))
-    }
-}
-
-#[inline]
-pub(crate) fn tcsetattr(
-    fd: BorrowedFd<'_>,
-    optional_actions: OptionalActions,
-    termios: &Termios,
-) -> io::Result<()> {
-    // Translate from `optional_actions` into an ioctl request code. On MIPS,
-    // `optional_actions` already has `TCGETS` added to it.
-    let request = linux_raw_sys::ioctl::TCSETS2
-        + if cfg!(any(
-            target_arch = "mips",
-            target_arch = "mips32r6",
-            target_arch = "mips64",
-            target_arch = "mips64r6"
-        )) {
-            optional_actions as u32 - linux_raw_sys::ioctl::TCSETS
-        } else {
-            optional_actions as u32
-        };
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_ioctl,
-            fd,
-            c_uint(request),
-            by_ref(termios)
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn tcsendbreak(fd: BorrowedFd<'_>) -> io::Result<()> {
-    unsafe { ret(syscall_readonly!(__NR_ioctl, fd, c_uint(TCSBRK), c_uint(0))) }
-}
-
-#[inline]
-pub(crate) fn tcdrain(fd: BorrowedFd<'_>) -> io::Result<()> {
-    unsafe { ret(syscall_readonly!(__NR_ioctl, fd, c_uint(TCSBRK), c_uint(1))) }
-}
-
-#[inline]
-pub(crate) fn tcflush(fd: BorrowedFd<'_>, queue_selector: QueueSelector) -> io::Result<()> {
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_ioctl,
-            fd,
-            c_uint(TCFLSH),
-            c_uint(queue_selector as u32)
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn tcflow(fd: BorrowedFd<'_>, action: Action) -> io::Result<()> {
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_ioctl,
-            fd,
-            c_uint(TCXONC),
-            c_uint(action as u32)
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn tcgetsid(fd: BorrowedFd<'_>) -> io::Result<Pid> {
-    unsafe {
-        let mut result = MaybeUninit::<c::pid_t>::uninit();
-        ret(syscall!(__NR_ioctl, fd, c_uint(TIOCGSID), &mut result))?;
-        let pid = result.assume_init();
-        Ok(Pid::from_raw_unchecked(pid))
-    }
-}
-
-#[inline]
-pub(crate) fn tcsetwinsize(fd: BorrowedFd<'_>, winsize: Winsize) -> io::Result<()> {
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_ioctl,
-            fd,
-            c_uint(TIOCSWINSZ),
-            by_ref(&winsize)
-        ))
-    }
-}
-
-#[inline]
-pub(crate) fn tcsetpgrp(fd: BorrowedFd<'_>, pid: Pid) -> io::Result<()> {
-    let raw_pid: c::c_int = pid.as_raw_nonzero().get();
-    unsafe {
-        ret(syscall_readonly!(
-            __NR_ioctl,
-            fd,
-            c_uint(TIOCSPGRP),
-            by_ref(&raw_pid)
-        ))
-    }
-}
-
-/// A wrapper around a conceptual `cfsetspeed` which handles an arbitrary
-/// integer speed value.
-#[inline]
-pub(crate) fn set_speed(termios: &mut Termios, arbitrary_speed: u32) -> io::Result<()> {
-    let encoded_speed = crate::termios::speed::encode(arbitrary_speed).unwrap_or(c::BOTHER);
-
-    debug_assert_eq!(encoded_speed & !c::CBAUD, 0);
-
-    termios.control_modes -= ControlModes::from_bits_retain(c::CBAUD | c::CIBAUD);
-    termios.control_modes |=
-        ControlModes::from_bits_retain(encoded_speed | (encoded_speed << IBSHIFT));
-
-    termios.input_speed = arbitrary_speed;
-    termios.output_speed = arbitrary_speed;
-
-    Ok(())
-}
-
-/// A wrapper around a conceptual `cfsetospeed` which handles an arbitrary
-/// integer speed value.
-#[inline]
-pub(crate) fn set_output_speed(termios: &mut Termios, arbitrary_speed: u32) -> io::Result<()> {
-    let encoded_speed = crate::termios::speed::encode(arbitrary_speed).unwrap_or(c::BOTHER);
-
-    debug_assert_eq!(encoded_speed & !c::CBAUD, 0);
-
-    termios.control_modes -= ControlModes::from_bits_retain(c::CBAUD);
-    termios.control_modes |= ControlModes::from_bits_retain(encoded_speed);
-
-    termios.output_speed = arbitrary_speed;
-
-    Ok(())
-}
-
-/// A wrapper around a conceptual `cfsetispeed` which handles an arbitrary
-/// integer speed value.
-#[inline]
-pub(crate) fn set_input_speed(termios: &mut Termios, arbitrary_speed: u32) -> io::Result<()> {
-    let encoded_speed = crate::termios::speed::encode(arbitrary_speed).unwrap_or(c::BOTHER);
-
-    debug_assert_eq!(encoded_speed & !c::CBAUD, 0);
-
-    termios.control_modes -= ControlModes::from_bits_retain(c::CIBAUD);
-    termios.control_modes |= ControlModes::from_bits_retain(encoded_speed << IBSHIFT);
-
-    termios.input_speed = arbitrary_speed;
-
-    Ok(())
-}
-
-#[inline]
-pub(crate) fn cfmakeraw(termios: &mut Termios) {
-    // From the Linux [`cfmakeraw` manual page]:
-    //
-    // [`cfmakeraw` manual page]: https://man7.org/linux/man-pages/man3/cfmakeraw.3.html
-    termios.input_modes -= InputModes::IGNBRK
-        | InputModes::BRKINT
-        | InputModes::PARMRK
-        | InputModes::ISTRIP
-        | InputModes::INLCR
-        | InputModes::IGNCR
-        | InputModes::ICRNL
-        | InputModes::IXON;
-    termios.output_modes -= OutputModes::OPOST;
-    termios.local_modes -= LocalModes::ECHO
-        | LocalModes::ECHONL
-        | LocalModes::ICANON
-        | LocalModes::ISIG
-        | LocalModes::IEXTEN;
-    termios.control_modes -= ControlModes::CSIZE | ControlModes::PARENB;
-    termios.control_modes |= ControlModes::CS8;
-
-    // Musl and glibc also do these:
-    termios.special_codes[SpecialCodeIndex::VMIN] = 1;
-    termios.special_codes[SpecialCodeIndex::VTIME] = 0;
-}
-
-#[inline]
-pub(crate) fn isatty(fd: BorrowedFd<'_>) -> bool {
-    // On error, Linux will return either `EINVAL` (2.6.32) or `ENOTTY`
-    // (otherwise), because we assume we're never passing an invalid
-    // file descriptor (which would get `EBADF`). Either way, an error
-    // means we don't have a tty.
-    tcgetwinsize(fd).is_ok()
-}
-
-#[cfg(all(feature = "alloc", feature = "procfs"))]
-pub(crate) fn ttyname(fd: BorrowedFd<'_>, buf: &mut [MaybeUninit<u8>]) -> io::Result<usize> {
-    let fd_stat = crate::backend::fs::syscalls::fstat(fd)?;
-
-    // Quick check: if `fd` isn't a character device, it's not a tty.
-    if FileType::from_raw_mode(fd_stat.st_mode) != FileType::CharacterDevice {
-        return Err(io::Errno::NOTTY);
-    }
-
-    // Check that `fd` is really a tty.
-    tcgetwinsize(fd)?;
-
-    // Get a fd to "/proc/self/fd".
-    let proc_self_fd = procfs::proc_self_fd()?;
-
-    // Gather the ttyname by reading the "fd" file inside `proc_self_fd`.
-    let r = crate::backend::fs::syscalls::readlinkat(
-        proc_self_fd,
-        DecInt::from_fd(fd).as_c_str(),
-        buf,
-    )?;
-
-    // If the number of bytes is equal to the buffer length, truncation may
-    // have occurred. This check also ensures that we have enough space for
-    // adding a NUL terminator.
-    if r == buf.len() {
-        return Err(io::Errno::RANGE);
-    }
-
-    // `readlinkat` returns the number of bytes placed in the buffer.
-    // NUL-terminate the string at that offset.
-    buf[r].write(b'\0');
-
-    // Check that the path we read refers to the same file as `fd`.
-    {
-        // SAFETY: We just wrote the NUL byte above
-        let path = unsafe { CStr::from_ptr(buf.as_ptr().cast()) };
-
-        let path_stat = crate::backend::fs::syscalls::stat(path)?;
-        if path_stat.st_dev != fd_stat.st_dev || path_stat.st_ino != fd_stat.st_ino {
-            return Err(io::Errno::NODEV);
-        }
-    }
-
-    Ok(r)
-}