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Code Issues Activity

chroot: make Options.groups into an Option type

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Change the type of `Options.groups` to be `Option<Vec<String>>` so that
the absence of the `--groups` option is meaningfully distinguished from
an empty list of groups. This is important because `chroot --groups=''`
is used specifically to disable supplementary group lookup.
This commit is contained in:
Jeffrey Finkelstein 2025-01-02 19:06:49 -05:00
parent 52c05e2fd6
commit b59da37365
1 changed files with 7 additions and 5 deletions
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12
src/uu/chroot/src/chroot.rs
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@ -43,7 +43,7 @@ struct Options {
/// Whether to change to the new root directory.
skip_chdir: bool,
/// List of groups under which the command will be run.
groups: Vec<String>,
groups: Option<Vec<String>>,
/// The user and group (each optional) under which the command will be run.
userspec: Option<UserSpec>,
}
@ -133,12 +133,12 @@ impl Options {
None => return Err(ChrootError::MissingNewRoot.into()),
};
let groups = match matches.get_one::<String>(options::GROUPS) {
None => vec![],
None => None,
Some(s) => {
if s.is_empty() {
vec![]
Some(vec![])
} else {
parse_group_list(s)?
Some(parse_group_list(s)?)
}
}
};
@ -288,7 +288,9 @@ pub fn uu_app() -> Command {
fn set_context(options: &Options) -> UResult<()> {
enter_chroot(&options.newroot, options.skip_chdir)?;
set_groups_from_str(&options.groups)?;
if let Some(groups) = &options.groups {
set_groups_from_str(groups)?;
}
match &options.userspec {
None | Some(UserSpec::NeitherGroupNorUser) => {}
Some(UserSpec::UserOnly(user)) => set_user(user)?,