04c947c13a
`sys/ttycom.h` in both:
`#define TIOCGWINSZ _IOR('t', 104, struct winsize) /* get window size */`
82 lines
2.4 KiB
Rust
82 lines
2.4 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(deprecated)]
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use prelude::v1::*;
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use sys::fs::FileDesc;
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use libc::{self, c_int, c_ulong};
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use old_io::{self, IoResult, IoError};
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use sys::c;
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use sys_common;
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pub struct TTY {
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pub fd: FileDesc,
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}
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#[cfg(any(target_os = "macos",
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target_os = "ios",
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target_os = "dragonfly",
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target_os = "freebsd",
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target_os = "bitrig",
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target_os = "openbsd"))]
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const TIOCGWINSZ: c_ulong = 0x40087468;
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#[cfg(any(target_os = "linux", target_os = "android"))]
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const TIOCGWINSZ: c_ulong = 0x00005413;
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impl TTY {
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pub fn new(fd: c_int) -> IoResult<TTY> {
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if unsafe { libc::isatty(fd) } != 0 {
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Ok(TTY { fd: FileDesc::new(fd, true) })
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} else {
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Err(IoError {
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kind: old_io::MismatchedFileTypeForOperation,
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desc: "file descriptor is not a TTY",
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detail: None,
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})
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}
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}
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pub fn read(&mut self, buf: &mut [u8]) -> IoResult<uint> {
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self.fd.read(buf)
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}
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pub fn write(&mut self, buf: &[u8]) -> IoResult<()> {
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self.fd.write(buf)
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}
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pub fn set_raw(&mut self, _raw: bool) -> IoResult<()> {
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Err(sys_common::unimpl())
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}
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pub fn get_winsize(&mut self) -> IoResult<(int, int)> {
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unsafe {
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#[repr(C)]
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struct winsize {
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ws_row: u16,
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ws_col: u16,
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ws_xpixel: u16,
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ws_ypixel: u16
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}
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let mut size = winsize { ws_row: 0, ws_col: 0, ws_xpixel: 0, ws_ypixel: 0 };
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if c::ioctl(self.fd.fd(), TIOCGWINSZ, &mut size) == -1 {
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Err(IoError {
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kind: old_io::OtherIoError,
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desc: "Size of terminal could not be determined",
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detail: None,
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})
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} else {
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Ok((size.ws_col as int, size.ws_row as int))
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}
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}
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}
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}
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