From d9d7440a7ffe5e4c68611ec370bc784866d08cc6 Mon Sep 17 00:00:00 2001
From: Paul Sajna <paulsajna@gmail.com>
Date: Sun, 4 Mar 2018 06:37:45 -0800
Subject: [PATCH] implement some unistd
---
platform/src/linux/mod.rs | 18 ++++++++++++++++++
platform/src/redox/mod.rs | 21 +++++++++++++++++++++
src/unistd/src/lib.rs | 6 +++---
3 files changed, 42 insertions(+), 3 deletions(-)
diff --git a/platform/src/linux/mod.rs b/platform/src/linux/mod.rs
index adc1994c..d8608f9e 100644
--- a/platform/src/linux/mod.rs
+++ b/platform/src/linux/mod.rs
@@ -2,12 +2,30 @@ use types::*;
const AT_FDCWD: c_int = -100;
+pub fn chdir(path: *const c_char) -> c_int {
+ unsafe {
+ syscall!(CHDIR, path) as c_int
+ }
+}
+
pub fn close(fildes: c_int) -> c_int {
unsafe {
syscall!(CLOSE, fildes) as c_int
}
}
+pub fn dup(fildes: c_int) -> c_int {
+ unsafe {
+ syscall!(DUP, fildes) as c_int
+ }
+}
+
+pub fn dup2(fildes: c_int, fildes2:c_int) -> c_int {
+ unsafe {
+ syscall!(DUP2, fildes, fildes2) as c_int
+ }
+}
+
pub fn exit(status: c_int) -> ! {
unsafe {
syscall!(EXIT, status);
diff --git a/platform/src/redox/mod.rs b/platform/src/redox/mod.rs
index 239d06a6..7964839e 100644
--- a/platform/src/redox/mod.rs
+++ b/platform/src/redox/mod.rs
@@ -1,3 +1,24 @@
+use core::slice;
+
+pub unsafe fn cstr_to_slice<'a>(buf: *const c_char) -> &'a [u8] {
+ slice::from_raw_parts(buf as *const u8, ::strlen(buf) as usize)
+}
+
+pub fn chdir(path: *const c_char) -> c_int {
+ syscall::chdir(cstr_to_slice(path))? as c_int
+}
+
+pub fn close(fildes: c_int) -> c_int {
+ syscall::close(fildes as usize)? as c_int
+}
+
+pub fn dup(fildes: c_int) -> c_int {
+ syscall::dup(file as usize, &[])? as c_int
+}
+
+pub fn dup2(fildes: c_int, fildes2) -> c_int {
+ syscall::dup2(fildes as usize, fildes2 as usize, &[])? as c_int
+
pub fn exit(status: c_int) -> ! {
syscall::exit(status);
}
diff --git a/src/unistd/src/lib.rs b/src/unistd/src/lib.rs
index cf911b4f..3db682fe 100644
--- a/src/unistd/src/lib.rs
+++ b/src/unistd/src/lib.rs
@@ -46,7 +46,7 @@ pub extern "C" fn brk(addr: *mut c_void) -> c_int {
#[no_mangle]
pub extern "C" fn chdir(path: *const c_char) -> c_int {
- unimplemented!();
+ platform::chdir(path)
}
#[no_mangle]
@@ -86,12 +86,12 @@ pub extern "C" fn cuserid(s: *mut c_char) -> *mut c_char {
#[no_mangle]
pub extern "C" fn dup(fildes: c_int) -> c_int {
- unimplemented!();
+ platform::dup(fildes)
}
#[no_mangle]
pub extern "C" fn dup2(fildes: c_int, fildes2: c_int) -> c_int {
- unimplemented!();
+ platform::dup2(fildes, fildes2)
}
#[no_mangle]
--
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