Add frename

Cargo.toml

 [package]
 name = "redox_syscall"
-version = "0.1.32"
+version = "0.1.33"
 description = "A Rust library to access raw Redox system calls"
 license = "MIT"
 authors = ["Jeremy Soller <jackpot51@gmail.com>"]

src/call.rs

@@ -120,6 +120,11 @@ pub fn fpath(fd: usize, buf: &mut [u8]) -> Result<usize> {
     unsafe { syscall3(SYS_FPATH, fd, buf.as_mut_ptr() as usize, buf.len()) }
 }
 
+/// Rename a file
+pub fn frename<T: AsRef<[u8]>>(fd: usize, path: T) -> Result<usize> {
+    unsafe { syscall3(SYS_FRENAME, fd, path.as_ref().as_ptr() as usize, path.as_ref().len()) }
+}
+
 /// Get metadata about a file
 pub fn fstat(fd: usize, stat: &mut Stat) -> Result<usize> {
     unsafe { syscall3(SYS_FSTAT, fd, stat as *mut Stat as usize, mem::size_of::<Stat>()) }

src/number.rs

@@ -29,6 +29,7 @@ pub const SYS_FEVENT: usize =   SYS_CLASS_FILE | 927;
 pub const SYS_FMAP: usize =     SYS_CLASS_FILE | 90;
 pub const SYS_FUNMAP: usize =   SYS_CLASS_FILE | 91;
 pub const SYS_FPATH: usize =    SYS_CLASS_FILE | SYS_ARG_MSLICE | 928;
+pub const SYS_FRENAME: usize =  SYS_CLASS_FILE | SYS_ARG_PATH | 38;
 pub const SYS_FSTAT: usize =    SYS_CLASS_FILE | SYS_ARG_MSLICE | 28;
 pub const SYS_FSTATVFS: usize = SYS_CLASS_FILE | SYS_ARG_MSLICE | 100;
 pub const SYS_FSYNC: usize =    SYS_CLASS_FILE | 118;

src/scheme.rs

@@ -20,6 +20,7 @@ pub trait Scheme {
             SYS_FEVENT => self.fevent(packet.b, packet.c),
             SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
             SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
                 self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
             } else {
@@ -115,6 +116,11 @@ pub trait Scheme {
         Err(Error::new(EBADF))
     }
 
+    #[allow(unused_variables)]
+    fn frename(&self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
     #[allow(unused_variables)]
     fn fstat(&self, id: usize, stat: &mut Stat) -> Result<usize> {
         Err(Error::new(EBADF))
@@ -164,6 +170,7 @@ pub trait SchemeMut {
             SYS_FEVENT => self.fevent(packet.b, packet.c),
             SYS_FMAP => self.fmap(packet.b, packet.c, packet.d),
             SYS_FPATH => self.fpath(packet.b, unsafe { slice::from_raw_parts_mut(packet.c as *mut u8, packet.d) }),
+            SYS_FRENAME => self.frename(packet.b, unsafe { slice::from_raw_parts(packet.c as *const u8, packet.d) }, packet.uid, packet.gid),
             SYS_FSTAT => if packet.d >= mem::size_of::<Stat>() {
                 self.fstat(packet.b, unsafe { &mut *(packet.c as *mut Stat) })
             } else {
@@ -258,6 +265,11 @@ pub trait SchemeMut {
         Err(Error::new(EBADF))
     }
 
+    #[allow(unused_variables)]
+    fn frename(&mut self, id: usize, path: &[u8], uid: u32, gid: u32) -> Result<usize> {
+        Err(Error::new(EBADF))
+    }
+
     #[allow(unused_variables)]
     fn fstat(&mut self, id: usize, stat: &mut Stat) -> Result<usize> {
         Err(Error::new(EBADF))