Simply avoid null sources.

1 files changed, 3 insertions, 0 deletions

diff --git a/Sources.mm b/Sources.mm
index 11a86dc..ee7e5ac 100644
--- a/Sources.mm
+++ b/Sources.mm
@@ -84,6 +84,9 @@ void CydiaAddSource(NSDictionary *source) {
 }
 
 void CydiaAddSource(NSString *href, NSString *distribution, NSArray *sections) {
+    if (href == nil || distribution == nil)
+        return;
+
     CydiaAddSource([NSMutableDictionary dictionaryWithObjectsAndKeys:
         @"deb", @"Type",
         href, @"URI",