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Code Issues Activity

Merge pull request #256 from ebfe/chroot

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chroot: fix setgroups prototype on linux
This commit is contained in:
Arcterus 2014-06-16 17:44:56 -07:00
commit f4615d746d
1 changed files with 28 additions and 6 deletions
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34
chroot/chroot.rs
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@ -21,9 +21,18 @@ use libc::funcs::posix88::unistd::{execvp, setuid, setgid};
extern {
fn chroot(path: *libc::c_char) -> libc::c_int;
}
#[cfg(target_os = "macos")]
extern {
fn setgroups(size: libc::c_int, list: *libc::gid_t) -> libc::c_int;
}
#[cfg(target_os = "linux")]
extern {
fn setgroups(size: libc::size_t, list: *libc::gid_t) -> libc::c_int;
}
static NAME: &'static str = "chroot";
static VERSION: &'static str = "1.0.0";
@ -112,7 +121,7 @@ fn set_context(root: &Path, options: &getopts::Matches) {
enter_chroot(root);
set_groups(groupsStr.as_slice());
set_groups_from_str(groupsStr.as_slice());
set_main_group(group);
set_user(user);
}
@ -143,7 +152,23 @@ fn set_main_group(group: &str) {
}
}
fn set_groups(groups: &str) {
#[cfg(target_os = "macos")]
fn set_groups(groups: Vec<libc::gid_t>) -> libc::c_int {
unsafe {
setgroups(groups.len() as libc::c_int,
groups.as_slice().as_ptr())
}
}
#[cfg(target_os = "linux")]
fn set_groups(groups: Vec<libc::gid_t>) -> libc::c_int {
unsafe {
setgroups(groups.len() as libc::size_t,
groups.as_slice().as_ptr())
}
}
fn set_groups_from_str(groups: &str) {
if !groups.is_empty() {
let groupsVec: Vec<libc::gid_t> = FromIterator::from_iter(
groups.split(',').map(
@ -152,10 +177,7 @@ fn set_groups(groups: &str) {
Some(g) => g.gr_gid
})
);
let err = unsafe {
setgroups(groupsVec.len() as libc::c_int,
groupsVec.as_slice().as_ptr() as *libc::gid_t)
};
let err = set_groups(groupsVec);
if err != 0 {
crash!(1, "cannot set groups: {:s}", strerror(err).as_slice())
}