Merge branch 'unistd-cleanup' into 'master'

unistd header cleanup

See merge request redox-os/relibc!949

src/header/unistd/brk.rs

@@ -3,7 +3,10 @@ use core::ptr;
 use crate::{
     error::ResultExtPtrMut,
     header::errno::ENOMEM,
-    platform::{self, Pal, Sys, types::*},
+    platform::{
+        self, Pal, Sys,
+        types::{c_int, c_void, intptr_t},
+    },
 };
 
 static mut BRK: *mut c_void = ptr::null_mut();

src/header/unistd/getpass.rs

@@ -12,7 +12,7 @@ use crate::{
     raw_cell::RawCell,
 };
 
-use crate::platform::types::*;
+use crate::platform::types::c_char;
 
 fn getpass_rs(prompt: CStr, passbuff: &mut [u8]) -> Result<*mut c_char, io::Error> {
     let mut f = File::open(c"/dev/tty".into(), O_RDWR | O_CLOEXEC)?;

src/header/unistd/pathconf.rs

@@ -1,6 +1,9 @@
 use crate::{
     header::{errno, termios::_POSIX_VDISABLE},
-    platform::{self, types::*},
+    platform::{
+        self,
+        types::{c_char, c_int, c_long},
+    },
 };
 
 pub const _PC_LINK_MAX: c_int = 0;

src/header/unistd/sysconf/redox.rs

@@ -8,7 +8,10 @@ use crate::{
     header::{errno, fcntl, limits, sys_statvfs},
     io::Read,
     out::Out,
-    platform::{self, Pal, Sys, types::*},
+    platform::{
+        self, Pal, Sys,
+        types::{c_int, c_long},
+    },
 };
 
 // POSIX.1 {