Slightly better error handling

1 files changed, 22 insertions, 2 deletions

diff --git a/error.rs b/error.rs
index 90429996..5e5479f8 100644
--- a/error.rs
+++ b/error.rs
@@ -6,14 +6,34 @@ use super::ffi;
 pub enum SslError {
     StreamEof,
     SslSessionClosed,
-    UnknownError(c_ulong)
+    UnknownError {
+        library: u8,
+        function: u16,
+        reason: u16
+    }
+}
+
+fn get_lib(err: c_ulong) -> u8 {
+    ((err >> 24) & 0xff) as u8
+}
+
+fn get_func(err: c_ulong) -> u16 {
+    ((err >> 12) & 0xfff) as u16
+}
+
+fn get_reason(err: c_ulong) -> u16 {
+    (err & 0xfff) as u16
 }
 
 impl SslError {
     pub fn get() -> Option<SslError> {
         match unsafe { ffi::ERR_get_error() } {
             0 => None,
-            err => Some(UnknownError(err))
+            err => Some(UnknownError {
+                library: get_lib(err),
+                function: get_func(err),
+                reason: get_reason(err)
+            })
         }
     }
 }