[gitg] Temporary fix for null-bytes in hunk header

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 9962c325b94ccfa375fb57dfcc44db021d5b4230
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Fri Jul 5 20:24:35 2013 +0200

    Temporary fix for null-bytes in hunk header

 libgitg/gitg-diff-view-request-diff.vala |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)
---
diff --git a/libgitg/gitg-diff-view-request-diff.vala b/libgitg/gitg-diff-view-request-diff.vala
index 8a0f1e5..8cb214e 100644
--- a/libgitg/gitg-diff-view-request-diff.vala
+++ b/libgitg/gitg-diff-view-request-diff.vala
@@ -255,7 +255,20 @@ namespace Gitg
                                                maxlines = ml;
                                        }
 
-                                       hunk_cb(builder, state, delta, range, ((string)header).substring(0, 
header.length));
+                                       // There seems to be a bug where sometimes the hunk header
+                                       // contains null-bytes. As a temporary fix, we scan the
+                                       // header for the first null byte and truncate it
+                                       //
+                                       // see: https://github.com/libgit2/libgit2/issues/1710
+                                       for (int i = 0; i < header.length; ++i)
+                                       {
+                                               if (header[i] == 0)
+                                               {
+                                                       header.length = i;
+                                               }
+                                       }
+
+                                       hunk_cb(builder, state, delta, range, 
((string)header)[0:header.length]);
                                        return 0;
                                },
 
@@ -269,7 +282,7 @@ namespace Gitg
                                        {
                                                ++numlines;
 
-                                               line_cb(builder, delta, range, line_type, 
((string)content).substring(0, content.length));
+                                               line_cb(builder, delta, range, line_type, 
((string)content)[0:content.length]);
                                        }
 
                                        return 0;