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pub fn stdout_isatty() -> bool {
isatty(stream::Stream::Stdout)
}
pub fn stderr_isatty() -> bool {
isatty(stream::Stream::Stderr)
}
mod stream {
pub enum Stream {
Stdout,
Stderr,
}
}
#[cfg(unix)]
use unix::isatty;
#[cfg(unix)]
mod unix {
use stream::Stream;
pub fn isatty(stream: Stream) -> bool {
extern crate libc;
let fd = match stream {
Stream::Stdout => libc::STDOUT_FILENO,
Stream::Stderr => libc::STDERR_FILENO,
};
unsafe { libc::isatty(fd) != 0 }
}
}
#[cfg(windows)]
use windows::isatty;
#[cfg(windows)]
mod windows {
extern crate kernel32;
extern crate winapi;
use stream::Stream;
pub fn isatty(stream: Stream) -> bool {
let handle = match stream {
Stream::Stdout => winapi::winbase::STD_OUTPUT_HANDLE,
Stream::Stderr => winapi::winbase::STD_ERROR_HANDLE,
};
unsafe {
let handle = kernel32::GetStdHandle(handle);
if is_cygwin_pty(handle) {
return true;
}
let mut out = 0;
kernel32::GetConsoleMode(handle, &mut out) != 0
}
}
fn is_cygwin_pty(handle: winapi::HANDLE) -> bool {
use std::ffi::OsString;
use std::mem;
use std::os::raw::c_void;
use std::os::windows::ffi::OsStringExt;
use std::slice;
use self::kernel32::GetFileInformationByHandleEx;
use self::winapi::fileapi::FILE_NAME_INFO;
use self::winapi::minwinbase::FileNameInfo;
use self::winapi::minwindef::MAX_PATH;
unsafe {
let size = mem::size_of::<FILE_NAME_INFO>();
let mut name_info_bytes = vec![0u8; size + MAX_PATH];
let res = GetFileInformationByHandleEx(handle,
FileNameInfo,
&mut *name_info_bytes as *mut _ as *mut c_void,
name_info_bytes.len() as u32);
if res == 0 {
return true;
}
let name_info: FILE_NAME_INFO = *(name_info_bytes[0..size]
.as_ptr() as *const FILE_NAME_INFO);
let name_bytes = &name_info_bytes[size..size + name_info.FileNameLength as usize];
let name_u16 = slice::from_raw_parts(name_bytes.as_ptr() as *const u16,
name_bytes.len() / 2);
let name = OsString::from_wide(name_u16)
.as_os_str()
.to_string_lossy()
.into_owned();
name.contains("msys-") || name.contains("-pty")
}
}
}