forked from Proxmox/proxmox
sys: Use safe wrapper for libc::isatty
Use the `std::io::IsTerminal` trait introduced in Rust 1.70. Internally it calls `libc::isatty`, see [1, 2]. Note that it switches the comparison from `== 1` to `!= 0` which shouldn't make a difference assuming that libc::isatty upholds the promises made in its man page. The MSRV was set on the workspace to reflect this change. [1] https://doc.rust-lang.org/src/std/io/stdio.rs.html#1079 [2] https://doc.rust-lang.org/src/std/sys/unix/io.rs.html#79 Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
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@ -44,6 +44,7 @@ license = "AGPL-3"
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repository = "https://git.proxmox.com/?p=proxmox.git"
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homepage = "https://proxmox.com"
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exclude = [ "debian" ]
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rust-version = "1.70"
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[workspace.dependencies]
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# any features enabled here are enabled on all members using 'workspace = true'!
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@ -1,4 +1,4 @@
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use std::io::{self, Read, Write};
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use std::io::{self, IsTerminal, Read, Write};
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use std::mem::MaybeUninit;
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use std::os::unix::io::{AsRawFd, OwnedFd};
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@ -25,20 +25,16 @@ pub fn stdout_terminal_size() -> (usize, usize) {
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(winsize.ws_row as usize, winsize.ws_col as usize)
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}
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/// Returns whether the current stdout is a tty .
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/// # Safety
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///
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/// uses unsafe call to libc::isatty
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/// Returns whether the current stdout is a tty.
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#[deprecated(note = "Use std::io::stdout().is_terminal()")]
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pub fn stdout_isatty() -> bool {
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unsafe { libc::isatty(std::io::stdin().as_raw_fd()) == 1 }
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std::io::stdout().is_terminal()
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}
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/// Returns whether the current stdin is a tty .
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/// # Safety
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///
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/// uses unsafe call to libc::isatty
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/// Returns whether the current stdin is a tty.
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#[deprecated(note = "Use std::io::stdin().is_terminal()")]
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pub fn stdin_isatty() -> bool {
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unsafe { libc::isatty(std::io::stdin().as_raw_fd()) == 1 }
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std::io::stdin().is_terminal()
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}
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pub enum TtyOutput {
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@ -75,7 +71,7 @@ impl TtyOutput {
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/// Get an output file descriptor for the current terminal.
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pub fn open() -> io::Result<Option<Self>> {
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let stdout = std::io::stdout();
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if unsafe { libc::isatty(stdout.as_raw_fd()) } == 1 {
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if stdout.is_terminal() {
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Ok(Some(TtyOutput::Stdout(stdout)))
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} else {
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match crate::fd::open(
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@ -97,7 +93,7 @@ impl TtyOutput {
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/// first.
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pub fn read_password(query: &str) -> Result<Vec<u8>, Error> {
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let input = std::io::stdin();
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if unsafe { libc::isatty(input.as_raw_fd()) } != 1 {
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if !input.is_terminal() {
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let mut out = String::new();
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input.read_line(&mut out)?;
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return Ok(out.into_bytes());
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