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authorJeryl Vaz <jerylvaz@yahoo.com>2021-04-23 16:48:41 +0200
committerJeryl Vaz <jeryl-david-paul.vaz@bmw.de>2021-05-31 16:17:50 +0200
commitb481a0eb2fa8ff8b8376c8077b971b793c81d5eb (patch)
tree87afc3ee6cd09008191559e307de1038ec5e7067 /src/unistd.rs
parent77e44027b36222f1c0b8f1d2c82b7e533a694a04 (diff)
downloadnix-b481a0eb2fa8ff8b8376c8077b971b793c81d5eb.zip
Add getresuid() and getresgid() to unistd
Diffstat (limited to 'src/unistd.rs')
-rw-r--r--src/unistd.rs64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/unistd.rs b/src/unistd.rs
index 8e361bad..d406efe8 100644
--- a/src/unistd.rs
+++ b/src/unistd.rs
@@ -29,6 +29,9 @@ pub use self::pivot_root::*;
target_os = "linux", target_os = "openbsd"))]
pub use self::setres::*;
+#[cfg(any(target_os = "android", target_os = "linux"))]
+pub use self::getres::*;
+
/// User identifier
///
/// Newtype pattern around `uid_t` (which is just alias). It prevents bugs caused by accidentally
@@ -2516,6 +2519,67 @@ mod setres {
}
}
+#[cfg(any(target_os = "android", target_os = "linux"))]
+mod getres {
+ use crate::Result;
+ use crate::errno::Errno;
+ use super::{Uid, Gid};
+
+ /// Real, effective and saved user IDs.
+ #[derive(Debug, Copy, Clone, Eq, PartialEq)]
+ pub struct ResUid {
+ pub real: Uid,
+ pub effective: Uid,
+ pub saved: Uid
+ }
+
+ /// Real, effective and saved group IDs.
+ #[derive(Debug, Copy, Clone, Eq, PartialEq)]
+ pub struct ResGid {
+ pub real: Gid,
+ pub effective: Gid,
+ pub saved: Gid
+ }
+
+ /// Gets the real, effective, and saved user IDs.
+ ///
+ /// ([see getresuid(2)](http://man7.org/linux/man-pages/man2/getresuid.2.html))
+ ///
+ /// #Returns
+ ///
+ /// - `Ok((Uid, Uid, Uid))`: tuple of real, effective and saved uids on success.
+ /// - `Err(x)`: libc error code on failure.
+ ///
+ #[inline]
+ pub fn getresuid() -> Result<ResUid> {
+ let mut ruid = libc::uid_t::max_value();
+ let mut euid = libc::uid_t::max_value();
+ let mut suid = libc::uid_t::max_value();
+ let res = unsafe { libc::getresuid(&mut ruid, &mut euid, &mut suid) };
+
+ Errno::result(res).map(|_| ResUid{ real: Uid(ruid), effective: Uid(euid), saved: Uid(suid) })
+ }
+
+ /// Gets the real, effective, and saved group IDs.
+ ///
+ /// ([see getresgid(2)](http://man7.org/linux/man-pages/man2/getresgid.2.html))
+ ///
+ /// #Returns
+ ///
+ /// - `Ok((Gid, Gid, Gid))`: tuple of real, effective and saved gids on success.
+ /// - `Err(x)`: libc error code on failure.
+ ///
+ #[inline]
+ pub fn getresgid() -> Result<ResGid> {
+ let mut rgid = libc::gid_t::max_value();
+ let mut egid = libc::gid_t::max_value();
+ let mut sgid = libc::gid_t::max_value();
+ let res = unsafe { libc::getresgid(&mut rgid, &mut egid, &mut sgid) };
+
+ Errno::result(res).map(|_| ResGid { real: Gid(rgid), effective: Gid(egid), saved: Gid(sgid) } )
+ }
+}
+
libc_bitflags!{
/// Options for access()
pub struct AccessFlags : c_int {