Auto merge of #22541 - Manishearth:rollup, r=Gankro 1.0.0-alpha.2

Continued from #22520

1 files changed, 3 insertions, 2 deletions

diff --git a/src/libstd/sys/unix/mod.rs b/src/libstd/sys/unix/mod.rs
index 850189140d1..b79ad7031fa 100644
--- a/src/libstd/sys/unix/mod.rs
+++ b/src/libstd/sys/unix/mod.rs
@@ -17,7 +17,7 @@
 
 use prelude::v1::*;
 
-use ffi;
+use ffi::CStr;
 use io::{self, ErrorKind};
 use libc;
 use num::{Int, SignedInt};
@@ -91,7 +91,8 @@ pub fn last_gai_error(s: libc::c_int) -> IoError {
 
     let mut err = decode_error(s);
     err.detail = Some(unsafe {
-        str::from_utf8(ffi::c_str_to_bytes(&gai_strerror(s))).unwrap().to_string()
+        let data = CStr::from_ptr(gai_strerror(s));
+        str::from_utf8(data.to_bytes()).unwrap().to_string()
     });
     err
 }