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uucore: entries: add documentation

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Jan Scheer 2021-06-13 10:12:00 +02:00
parent 60124b8fbd
commit 9af9343745
1 changed files with 7 additions and 0 deletions
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7
src/uucore/src/lib/features/entries.rs
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@ -179,6 +179,13 @@ impl Passwd {
self.inner self.inner
} }
/// This is a wrapper function for `libc::getgrouplist`.
///
/// From: https://man7.org/linux/man-pages/man3/getgrouplist.3.html
/// If the user is a member of more than *ngroups groups, then
/// getgrouplist() returns -1. In this case, the value returned in
/// *ngroups can be used to resize the buffer passed to a further
/// call getgrouplist().
pub fn belongs_to(&self) -> Vec<gid_t> { pub fn belongs_to(&self) -> Vec<gid_t> {
let mut ngroups: c_int = 8; let mut ngroups: c_int = 8;
let mut groups = Vec::with_capacity(ngroups as usize); let mut groups = Vec::with_capacity(ngroups as usize);