From 62a16395b17460887747602a4184372a0c9a6d6f Mon Sep 17 00:00:00 2001
From: Carlos Martín Nieto <cmn@dwim.me>
Date: Fri, 8 Mar 2013 16:03:49 +0100
Subject: Oid: make sure not to dereference a NULL git_oid

Some calls like Reference.Target() can return NULL if the reference is
symbolic. Make sure newOidFromC() can handle these situations.
---
 git.go | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'git.go')

diff --git a/git.go b/git.go
index 84716e3..68712d4 100644
--- a/git.go
+++ b/git.go
@@ -26,6 +26,10 @@ type Oid struct {
 }
 
 func newOidFromC(coid *C.git_oid) *Oid {
+	if coid == nil {
+		return nil
+	}
+
 	oid := new(Oid)
 	copy(oid.bytes[0:20], C.GoBytes(unsafe.Pointer(coid), 20))
 	return oid
-- 
cgit v1.2.3