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dirname: fix dirname . >/dev/full panic #12810

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Merged
cakebaker merged 1 commit into from
Jun 13, 2026
+5 −4
Merged

dirname: fix dirname . >/dev/full panic #12810

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9 changes: 5 additions & 4 deletions src/uu/dirname/src/dirname.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@

use clap::{Arg, ArgAction, Command};
use std::ffi::OsString;
use std::io::{Write as _, stdout};
#[cfg(unix)]
use uucore::display::print_verbatim;
use uucore::error::{UResult, UUsageError};
Expand Down Expand Up @@ -122,20 +123,20 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
{
use std::os::unix::ffi::OsStrExt;
let result_os = std::ffi::OsStr::from_bytes(result);
print_verbatim(result_os).unwrap();
print_verbatim(result_os)?;
}
#[cfg(not(unix))]
{
// On non-Unix, fall back to lossy conversion
if let Ok(s) = std::str::from_utf8(result) {
print!("{s}");
write!(stdout(), "{s}")?;
} else {
// Fallback for non-UTF-8 paths on non-Unix systems
print!(".");
write!(stdout(), ".")?;
}
}

print!("{line_ending}");
write!(stdout(), "{line_ending}")?;
}

Ok(())
Expand Down
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