From 93524d32b3c75083549e3871dcd10db30c94283d Mon Sep 17 00:00:00 2001
From: "Jay Freeman (saurik)" <saurik@saurik.com>
Date: Thu, 2 Jul 2015 08:25:46 -0700
Subject: [PATCH] Don't inject sources.list if cydia.list is linked.

---
 MobileCydia.mm | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/MobileCydia.mm b/MobileCydia.mm
index a636eeb5..75d28421 100644
--- a/MobileCydia.mm
+++ b/MobileCydia.mm
@@ -3743,11 +3743,23 @@ class CydiaLogCleaner :
     return [self popErrorWithTitle:title] || !success;
 }
 
+- (bool) _isEtceteraAptSourcesListDirectoryCydiaListSymbolicallyLinkedToMobileCachesCydiaSourceList {
+    char target[1024];
+    ssize_t length(readlink("/etc/apt/sources.list.d/cydia.list", target, sizeof(target) - 1));
+    if (length == -1)
+        return false;
+    if (length >= sizeof(target))
+        return false;
+    target[length] = '\0';
+    return strcmp(target, "/var/mobile/Library/Caches/com.saurik.Cydia/sources.list") == 0;
+}
+
 - (bool) popErrorWithTitle:(NSString *)title forReadList:(pkgSourceList &)list {
     if ([self popErrorWithTitle:title forOperation:list.ReadMainList()])
         return true;
-    if ([self popErrorWithTitle:title forOperation:list.Read(SOURCES_LIST)])
-        return true;
+    if (![self _isEtceteraAptSourcesListDirectoryCydiaListSymbolicallyLinkedToMobileCachesCydiaSourceList])
+        if ([self popErrorWithTitle:title forOperation:list.Read(SOURCES_LIST)])
+            return true;
     return false;
 }
 
-- 
2.50.0