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chroot: resolve all ids before chroot #11211

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chroot: resolve all ids before chroot #11211

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5 changes: 4 additions & 1 deletion src/uu/chroot/src/chroot.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -390,31 +390,34 @@ fn set_supplemental_gids_with_strategy(

/// Change the root, set the user ID, and set the group IDs for this process.
fn set_context(options: &Options) -> UResult<()> {
enter_chroot(&options.newroot, options.skip_chdir)?;
match &options.userspec {
None | Some(UserSpec::NeitherGroupNorUser) => {
let strategy = Strategy::Nothing;
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
}
Some(UserSpec::UserOnly(user)) => {
let uid = name_to_uid(user)?;
let gid = usr2gid(user).map_err(|_| ChrootError::NoGroupSpecified(uid))?;
let strategy = Strategy::FromUID(uid, false);
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(user.to_owned(), e))?;
set_uid(uid).map_err(|e| ChrootError::SetUserFailed(user.to_owned(), e))?;
}
Some(UserSpec::GroupOnly(group)) => {
let gid = name_to_gid(group)?;
let strategy = Strategy::Nothing;
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(group.to_owned(), e))?;
}
Some(UserSpec::UserAndGroup(user, group)) => {
let uid = name_to_uid(user)?;
let gid = name_to_gid(group)?;
let strategy = Strategy::FromUID(uid, true);
set_supplemental_gids_with_strategy(strategy, options.groups.as_ref())?;
enter_chroot(&options.newroot, options.skip_chdir)?;
set_gid(gid).map_err(|e| ChrootError::SetGidFailed(group.to_owned(), e))?;
set_uid(uid).map_err(|e| ChrootError::SetUserFailed(user.to_owned(), e))?;
}
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