From 8bbe12302311142c2230eb1887aee7f4e9ca2130 Mon Sep 17 00:00:00 2001
From: Michael Gehring <mg@ebfe.org>
Date: Tue, 17 Jun 2014 03:01:44 +0200
Subject: [PATCH] hostname: fix sethostname prototype on linux

---
 hostname/hostname.rs | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/hostname/hostname.rs b/hostname/hostname.rs
index ed4f30930..48426b2e9 100644
--- a/hostname/hostname.rs
+++ b/hostname/hostname.rs
@@ -20,9 +20,18 @@ use getopts::{optflag, getopts, usage};
 
 extern {
     fn gethostname(name: *libc::c_char, namelen: libc::size_t) -> libc::c_int;
+}
+
+#[cfg(target_os = "macos")]
+extern {
     fn sethostname(name: *libc::c_char, namelen: libc::c_int) -> libc::c_int;
 }
 
+#[cfg(target_os = "linux")]
+extern {
+    fn sethostname(name: *libc::c_char, namelen: libc::size_t) -> libc::c_int;
+}
+
 #[allow(dead_code)]
 fn main () { os::set_exit_status(uumain(os::args())); }
 
@@ -99,11 +108,25 @@ fn xgethostname() -> String {
     str::from_utf8(name.slice_to(last_char)).unwrap().to_string()
 }
 
+#[cfg(target_os = "macos")]
 fn xsethostname(name: &str) {
-    let vec_name: Vec<libc::c_char> = name.bytes().map(|c| c as i8).collect();
+    let vec_name: Vec<libc::c_char> = name.bytes().map(|c| c as libc::c_char).collect();
 
     let err = unsafe {
-        sethostname (vec_name.as_ptr(), vec_name.len() as i32)
+        sethostname (vec_name.as_ptr(), vec_name.len() as libc::c_int)
+    };
+
+    if err != 0 {
+        println!("Cannot set hostname to {:s}", name);
+    }
+}
+
+#[cfg(target_os = "linux")]
+fn xsethostname(name: &str) {
+    let vec_name: Vec<libc::c_char> = name.bytes().map(|c| c as libc::c_char).collect();
+
+    let err = unsafe {
+        sethostname (vec_name.as_ptr(), vec_name.len() as libc::size_t)
     };
 
     if err != 0 {