From 3c2573917024c89bb2b53079ca196fe13ea74b1f Mon Sep 17 00:00:00 2001
From: David Greenberg <dsg123456789@gmail.com>
Date: Wed, 15 Jul 2015 09:12:36 -0400
Subject: [PATCH] Free err strings correctly

---
 src/rocksdb.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/rocksdb.rs b/src/rocksdb.rs
index 59c2413..d20a24a 100644
--- a/src/rocksdb.rs
+++ b/src/rocksdb.rs
@@ -163,8 +163,11 @@ pub trait Writable {
 
 fn error_message(ptr: *const i8) -> String {
     let c_str = unsafe { CStr::from_ptr(ptr) };
-//TODO I think we're leaking the c string here; should be a call to free once realloced into rust String
-    from_utf8(c_str.to_bytes()).unwrap().to_owned()
+    let s = from_utf8(c_str.to_bytes()).unwrap().to_owned();
+    unsafe{
+        libc::free(ptr as *mut libc::c_void);
+    }
+    s
 }
 
 impl RocksDB {