feat: Add relpathat

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "libredox"
 authors = ["4lDO2 <4lDO2@protonmail.com>"]
-version = "0.1.16"
+version = "0.1.17"
 edition = "2021"
 license = "MIT"
 description = "Redox stable ABI"
@@ -21,6 +21,6 @@ mkns = ["ioslice"]
 [dependencies]
 bitflags = { version = "2", optional = true }
 libc = { version = "0.2", optional = true }
-redox_syscall = { version = "0.7", optional = true }
+redox_syscall = { version = "0.8", optional = true }
 ioslice = { version = "0.6", optional = true }
 plain = { version = "0.2", optional = true }

src/lib.rs

@@ -115,7 +115,7 @@ pub mod flag {
         O_NONBLOCK, O_PATH, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY,
     };
 
-    pub use libc::{MSG_DONTROUTE, MSG_OOB, MSG_PEEK, MSG_DONTWAIT, MSG_EOR, };
+    pub use libc::{MSG_DONTROUTE, MSG_DONTWAIT, MSG_EOR, MSG_OOB, MSG_PEEK};
 
     pub use libc::{CLOCK_MONOTONIC, CLOCK_REALTIME};
 
@@ -257,6 +257,7 @@ extern "C" {
     fn redox_unlinkat_v0(fd: usize, buf: *const u8, path_len: usize, flags: u32) -> RawResult;
     */
     fn redox_fpath_v1(fd: usize, dst_base: *mut u8, dst_len: usize) -> RawResult;
+    fn redox_relpathat_v0(dirfd: usize, fd: usize, dst_base: *mut u8, dst_len: usize) -> RawResult;
     fn redox_close_v1(fd: usize) -> RawResult;
 
     // NOTE: While the Redox kernel currently doesn't distinguish between threads and processes,
@@ -412,6 +413,10 @@ impl Fd {
         call::fpath(self.raw(), path)
     }
     #[inline]
+    pub fn relpathat(&self, fd: usize, path: &mut [u8]) -> Result<usize> {
+        call::relpathat(self.raw(), fd, path)
+    }
+    #[inline]
     pub fn close(self) -> Result<()> {
         call::close(self.into_raw())
     }
@@ -564,6 +569,10 @@ pub mod call {
         Error::demux(unsafe { redox_fpath_v1(raw_fd, buf.as_mut_ptr(), buf.len()) })
     }
     #[inline]
+    pub fn relpathat(raw_fd: usize, fd: usize, buf: &mut [u8]) -> Result<usize> {
+        Error::demux(unsafe { redox_relpathat_v0(raw_fd, fd, buf.as_mut_ptr(), buf.len()) })
+    }
+    #[inline]
     pub fn close(raw_fd: usize) -> Result<()> {
         Error::demux(unsafe { redox_close_v1(raw_fd) })?;
         Ok(())