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-rw-r--r--vendor/rustix-0.37.6/src/backend/linux_raw/termios/syscalls.rs302
1 files changed, 0 insertions, 302 deletions
diff --git a/vendor/rustix-0.37.6/src/backend/linux_raw/termios/syscalls.rs b/vendor/rustix-0.37.6/src/backend/linux_raw/termios/syscalls.rs
deleted file mode 100644
index f5643f3c3..000000000
--- a/vendor/rustix-0.37.6/src/backend/linux_raw/termios/syscalls.rs
+++ /dev/null
@@ -1,302 +0,0 @@
-//! linux_raw syscalls supporting `rustix::termios`.
-//!
-//! # Safety
-//!
-//! See the `rustix::backend` module documentation for details.
-#![allow(unsafe_code)]
-#![allow(clippy::undocumented_unsafe_blocks)]
-
-use super::super::conv::{by_ref, c_uint, ret};
-use crate::fd::BorrowedFd;
-use crate::io;
-use crate::process::{Pid, RawNonZeroPid};
-use crate::termios::{
- Action, OptionalActions, QueueSelector, Termios, Winsize, BRKINT, CBAUD, CS8, CSIZE, ECHO,
- ECHONL, ICANON, ICRNL, IEXTEN, IGNBRK, IGNCR, INLCR, ISIG, ISTRIP, IXON, OPOST, PARENB, PARMRK,
- VMIN, VTIME,
-};
-#[cfg(feature = "procfs")]
-use crate::{ffi::CStr, fs::FileType, path::DecInt};
-use core::mem::MaybeUninit;
-use linux_raw_sys::general::__kernel_pid_t;
-use linux_raw_sys::ioctl::{
- TCFLSH, TCGETS, TCSBRK, TCSETS, 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();
- ret(syscall!(__NR_ioctl, fd, c_uint(TCGETS), &mut result))?;
- Ok(result.assume_init())
- }
-}
-
-#[inline]
-#[cfg(any(
- target_arch = "x86",
- target_arch = "x86_64",
- target_arch = "x32",
- target_arch = "riscv64",
- target_arch = "aarch64",
- target_arch = "arm",
- target_arch = "mips",
- target_arch = "mips64",
-))]
-pub(crate) fn tcgetattr2(fd: BorrowedFd<'_>) -> io::Result<crate::termios::Termios2> {
- unsafe {
- let mut result = MaybeUninit::<crate::termios::Termios2>::uninit();
- ret(syscall!(
- __NR_ioctl,
- fd,
- c_uint(linux_raw_sys::ioctl::TCGETS2),
- &mut result
- ))?;
- Ok(result.assume_init())
- }
-}
-
-#[inline]
-pub(crate) fn tcgetpgrp(fd: BorrowedFd<'_>) -> io::Result<Pid> {
- unsafe {
- let mut result = MaybeUninit::<__kernel_pid_t>::uninit();
- ret(syscall!(__NR_ioctl, fd, c_uint(TIOCGPGRP), &mut result))?;
- let pid = result.assume_init();
- debug_assert!(pid > 0);
- Ok(Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(
- pid as u32,
- )))
- }
-}
-
-#[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 = if cfg!(any(target_arch = "mips", target_arch = "mips64")) {
- optional_actions as u32
- } else {
- TCSETS + optional_actions as u32
- };
- unsafe {
- ret(syscall_readonly!(
- __NR_ioctl,
- fd,
- c_uint(request as u32),
- by_ref(termios)
- ))
- }
-}
-
-#[inline]
-#[cfg(any(
- target_arch = "x86",
- target_arch = "x86_64",
- target_arch = "x32",
- target_arch = "riscv64",
- target_arch = "aarch64",
- target_arch = "arm",
- target_arch = "mips",
- target_arch = "mips64",
-))]
-pub(crate) fn tcsetattr2(
- fd: BorrowedFd,
- optional_actions: OptionalActions,
- termios: &crate::termios::Termios2,
-) -> io::Result<()> {
- unsafe {
- ret(syscall_readonly!(
- __NR_ioctl,
- fd,
- c_uint(linux_raw_sys::ioctl::TCSETS2 + optional_actions as u32),
- 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::<__kernel_pid_t>::uninit();
- ret(syscall!(__NR_ioctl, fd, c_uint(TIOCGSID), &mut result))?;
- let pid = result.assume_init();
- debug_assert!(pid > 0);
- Ok(Pid::from_raw_nonzero(RawNonZeroPid::new_unchecked(
- pid as u32,
- )))
- }
-}
-
-#[inline]
-pub(crate) fn tcsetwinsize(fd: BorrowedFd, winsize: Winsize) -> io::Result<()> {
- unsafe {
- ret(syscall!(
- __NR_ioctl,
- fd,
- c_uint(TIOCSWINSZ),
- by_ref(&winsize)
- ))
- }
-}
-
-#[inline]
-pub(crate) fn tcsetpgrp(fd: BorrowedFd<'_>, pid: Pid) -> io::Result<()> {
- unsafe { ret(syscall!(__NR_ioctl, fd, c_uint(TIOCSPGRP), pid)) }
-}
-
-#[inline]
-#[must_use]
-#[allow(clippy::missing_const_for_fn)]
-pub(crate) fn cfgetospeed(termios: &Termios) -> u32 {
- termios.c_cflag & CBAUD
-}
-
-#[inline]
-#[must_use]
-#[allow(clippy::missing_const_for_fn)]
-pub(crate) fn cfgetispeed(termios: &Termios) -> u32 {
- termios.c_cflag & CBAUD
-}
-
-#[inline]
-pub(crate) fn cfmakeraw(termios: &mut Termios) {
- // From the Linux [`cfmakeraw` man page]:
- //
- // [`cfmakeraw` man page]: https://man7.org/linux/man-pages/man3/cfmakeraw.3.html
- termios.c_iflag &= !(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
- termios.c_oflag &= !OPOST;
- termios.c_lflag &= !(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
- termios.c_cflag &= !(CSIZE | PARENB);
- termios.c_cflag |= CS8;
-
- // Musl and glibc also do these:
- termios.c_cc[VMIN] = 1;
- termios.c_cc[VTIME] = 0;
-}
-
-#[inline]
-pub(crate) fn cfsetospeed(termios: &mut Termios, speed: u32) -> io::Result<()> {
- if (speed & !CBAUD) != 0 {
- return Err(io::Errno::INVAL);
- }
- termios.c_cflag &= !CBAUD;
- termios.c_cflag |= speed;
- Ok(())
-}
-
-#[inline]
-pub(crate) fn cfsetispeed(termios: &mut Termios, speed: u32) -> io::Result<()> {
- if speed == 0 {
- return Ok(());
- }
- if (speed & !CBAUD) != 0 {
- return Err(io::Errno::INVAL);
- }
- termios.c_cflag &= !CBAUD;
- termios.c_cflag |= speed;
- Ok(())
-}
-
-#[inline]
-pub(crate) fn cfsetspeed(termios: &mut Termios, speed: u32) -> io::Result<()> {
- if (speed & !CBAUD) != 0 {
- return Err(io::Errno::INVAL);
- }
- termios.c_cflag &= !CBAUD;
- termios.c_cflag |= speed;
- Ok(())
-}
-
-#[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(feature = "procfs")]
-pub(crate) fn ttyname(fd: BorrowedFd<'_>, buf: &mut [u8]) -> io::Result<usize> {
- let fd_stat = super::super::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(crate::io::Errno::NOTTY);
- }
-
- // Check that `fd` is really a tty.
- tcgetwinsize(fd)?;
-
- // Get a fd to '/proc/self/fd'.
- let proc_self_fd = io::proc_self_fd()?;
-
- // Gather the ttyname by reading the 'fd' file inside 'proc_self_fd'.
- let r =
- super::super::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);
- }
- buf[r] = b'\0';
-
- // Check that the path we read refers to the same file as `fd`.
- let path = CStr::from_bytes_with_nul(&buf[..=r]).unwrap();
-
- let path_stat = super::super::fs::syscalls::stat(path)?;
- if path_stat.st_dev != fd_stat.st_dev || path_stat.st_ino != fd_stat.st_ino {
- return Err(crate::io::Errno::NODEV);
- }
-
- Ok(r)
-}
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