Remove SYS_UMASK.

Cargo.lock

@@ -224,7 +224,7 @@ checksum = "64072665120942deff5fd5425d6c1811b854f4939e7f1c01ce755f64432bbea7"
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.4"
+version = "0.5.6"
 dependencies = [
  "bitflags 2.4.2",
 ]

src/context/process.rs

@@ -54,8 +54,6 @@ pub struct ProcessInfo {
     pub egid: u32,
     /// The effective namespace id
     pub ens: SchemeNamespace,
-    /// Process umask
-    pub umask: usize,
 }
 impl Deref for Process {
     type Target = ProcessInfo;

src/main.rs

@@ -213,7 +213,6 @@ fn kmain(cpu_count: u32, bootstrap: Bootstrap) -> ! {
         egid: 0,
         rns: SchemeNamespace::new(0),
         ens: SchemeNamespace::new(0),
-        umask: 0o22,
     })
     .expect("failed to create init process");
 

src/syscall/debug.rs

@@ -190,7 +190,6 @@ pub fn format_call(a: usize, b: usize, c: usize, d: usize, e: usize, f: usize) -
         SYS_SETREGID => format!("setregid({}, {})", b, c),
         SYS_SETRENS => format!("setrens({}, {})", b, c),
         SYS_SETREUID => format!("setreuid({}, {})", b, c),
-        SYS_UMASK => format!("umask({:#o}", b),
         SYS_WAITPID => format!("waitpid({}, {:#X}, {:?})", b, c, WaitFlags::from_bits(d)),
         SYS_YIELD => format!("yield()"),
         _ => format!(

src/syscall/fs.rs

@@ -55,18 +55,10 @@ const PATH_MAX: usize = PAGE_SIZE;
 
 /// Open syscall
 pub fn open(raw_path: UserSliceRo, flags: usize) -> Result<FileHandle> {
-    let (pid, uid, gid, scheme_ns, umask) = match process::current()?.read() {
-        ref process => (
-            process.pid.into(),
-            process.euid,
-            process.egid,
-            process.ens,
-            process.umask,
-        ),
+    let (pid, uid, gid, scheme_ns) = match process::current()?.read() {
+        ref process => (process.pid.into(), process.euid, process.egid, process.ens),
     };
 
-    let flags = (flags & (!0o777)) | ((flags & 0o777) & (!(umask & 0o777)));
-
     // TODO: BorrowedHtBuf!
 
     /*

src/syscall/mod.rs

@@ -238,7 +238,6 @@ pub fn syscall(
             SYS_SETREUID => setreuid(b as u32, c as u32).map(|()| 0),
             SYS_SETRENS => setrens(SchemeNamespace::from(b), SchemeNamespace::from(c)).map(|()| 0),
             SYS_SETREGID => setregid(b as u32, c as u32).map(|()| 0),
-            SYS_UMASK => umask(b),
             SYS_VIRTTOPHYS => virttophys(b),
 
             SYS_MREMAP => mremap(b, c, d, e, f),

src/syscall/process.rs

@@ -620,18 +620,6 @@ pub fn setpgid(pid: ProcessId, pgid: ProcessId) -> Result<()> {
     }
 }
 
-pub fn umask(mask: usize) -> Result<usize> {
-    let previous;
-    {
-        let process_lock = process::current()?;
-        let mut process = process_lock.write();
-        previous = process.umask;
-        process.umask = mask;
-    }
-
-    Ok(previous)
-}
-
 fn reap(pid: ProcessId) -> Result<ProcessId> {
     let process_lock = Arc::clone(
         process::PROCESSES