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Fix confusing error message on macOS when running without sudo #492

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Fix confusing error message on macOS when running without sudo #492

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Fix confusing error message on macOS when running without sudo (#492)
chiranjeevi-max Feb 12, 2026
b6bb191
Merge branch 'imsnif:main' into main
chiranjeevi-max Apr 30, 2026
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)

### Fixed

* Fix confusing error message on macOS when running without sudo #492 - @chiranjeevi-max
* Fix Ctrl+C handling to use SIGINT signal instead of keypress #491 - @chiranjeevi-max
* Update CONTRIBUTING information #438 - @YJDoc2 @cyqsimon
* Fix new clippy lint #457 - @cyqsimon
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7 changes: 7 additions & 0 deletions src/os/shared.rs
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Expand Up @@ -76,6 +76,13 @@ pub(crate) fn get_datalink_channel(
ErrorKind::PermissionDenied => Err(GetInterfaceError::PermissionError(
interface.name.to_owned(),
)),
// on macOS/FreeBSD, permission errors when opening BPF devices manifest as
// "No such file or directory" (ENOENT) rather than EPERM
// see https://github.com/imsnif/bandwhich/issues/486
#[cfg(any(target_os = "macos", target_os = "freebsd"))]
ErrorKind::NotFound => Err(GetInterfaceError::PermissionError(
interface.name.to_owned(),
)),
_ => Err(GetInterfaceError::OtherError(format!(
"{}: {e}",
&interface.name
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