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shred: fix permissions_set_readonly_false clippy error #4488

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merged 1 commit into from
Mar 12, 2023
Merged

shred: fix permissions_set_readonly_false clippy error #4488

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16 changes: 16 additions & 0 deletions src/uu/shred/src/shred.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,13 @@ use std::fs;
use std::fs::{File, OpenOptions};
use std::io;
use std::io::prelude::*;
#[cfg(unix)]
use std::os::unix::fs::PermissionsExt;
use std::path::{Path, PathBuf};
use uucore::display::Quotable;
use uucore::error::{FromIo, UResult, USimpleError, UUsageError};
#[cfg(unix)]
use uucore::libc::S_IWUSR;
use uucore::{format_usage, show, show_if_err, util_name};

const BLOCK_SIZE: usize = 512;
Expand Down Expand Up @@ -462,6 +466,18 @@ fn wipe_file(
if force {
let metadata = fs::metadata(path).map_err_context(String::new)?;
let mut perms = metadata.permissions();
#[cfg(unix)]
#[allow(clippy::useless_conversion)]
{
// NOTE: set_readonly(false) makes the file world-writable on Unix.
// NOTE: S_IWUSR type is u16 on macOS.
if (perms.mode() & u32::from(S_IWUSR)) == 0 {
perms.set_mode(u32::from(S_IWUSR));
}
}
#[cfg(not(unix))]
// TODO: Remove the following once https:/rust-lang/rust-clippy/issues/10477 is resolved.
#[allow(clippy::permissions_set_readonly_false)]
perms.set_readonly(false);
fs::set_permissions(path, perms).map_err_context(String::new)?;
}
Expand Down