Avoid overwriting extended_states with a symlink.

diff --git a/MobileCydia.mm b/MobileCydia.mm
index 968a67a0d42b7f60fdccc56b7bec8f4cce76d9b7..86e6a6f26841a1b59e23ed5d984de79fdd038bac 100644 (file)
--- a/MobileCydia.mm
+++ b/MobileCydia.mm
@@ -4089,11 +4089,17 @@ class CydiaLogCleaner :
 
     delock_ = nil;
 
 
     delock_ = nil;
 

+    pkgPackageManager::OrderResult result(manager_->DoInstall(statusfd_));
+

     NSString *oextended(@"/var/lib/apt/extended_states");
     NSString *nextended(Cache("extended_states"));
     NSString *oextended(@"/var/lib/apt/extended_states");
     NSString *nextended(Cache("extended_states"));

-    pkgPackageManager::OrderResult result(manager_->DoInstall(statusfd_));
-    system([[NSString stringWithFormat:@"/usr/libexec/cydia/cydo /bin/mv -f %@ %@", nextended, oextended] UTF8String]);
-    system([[NSString stringWithFormat:@"/usr/libexec/cydia/cydo /bin/chown 0:0 %@", oextended] UTF8String]);
+
+    struct stat info;
+    if (stat([nextended UTF8String], &info) != -1 && (info.st_mode & S_IFMT) == S_IFREG) {
+        system([[NSString stringWithFormat:@"/usr/libexec/cydia/cydo /bin/mv -f %@ %@", nextended, oextended] UTF8String]);
+        system([[NSString stringWithFormat:@"/usr/libexec/cydia/cydo /bin/chown 0:0 %@", oextended] UTF8String]);
+    }
+

     unlink([nextended UTF8String]);
     symlink([oextended UTF8String], [nextended UTF8String]);
 
     unlink([nextended UTF8String]);
     symlink([oextended UTF8String], [nextended UTF8String]);