elevate privileges when calling clonepath. closes #41

src/create.cpp

@@ -70,7 +70,10 @@ _create(const fs::SearchFunc  searchFunc,
     return -errno;
 
   if(createpath[0].base != existingpath[0].base)
+    {
+      const mergerfs::ugid::SetResetGuard ugid(0,0);
       fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+    }
 
   path = fs::make_path(createpath[0].base,fusepath);
 

src/link.cpp

@@ -73,7 +73,11 @@ _link(const fs::SearchFunc  searchFunc,
           fs::find::ffwp(srcmounts,todir,topaths);
           if(topaths.size() > 0)
             {
+              {
+                const mergerfs::ugid::SetResetGuard ugid(0,0);
                 fs::clonepath(topaths[0].base,i->base,todir);
+              }
+
               lrv = ::link(pathfrom.c_str(),pathto.c_str());
             }
         }

src/mkdir.cpp

@@ -64,7 +64,10 @@ _mkdir(const fs::SearchFunc  searchFunc,
 
   rv = createPathFunc(srcmounts,dirname,createpath);
   if(createpath[0].base != existingpath[0].base)
+    {
+      const mergerfs::ugid::SetResetGuard ugid(0,0);
       fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+    }
 
   path = fs::make_path(createpath[0].base,fusepath);
 

src/mknod.cpp

@@ -66,7 +66,10 @@ _mknod(const fs::SearchFunc  searchFunc,
 
   createPathFunc(srcmounts,dirname,createpath);
   if(existingpath[0].base != createpath[0].base)
+    {
+      const mergerfs::ugid::SetResetGuard ugid(0,0);
       fs::clonepath(existingpath[0].base,createpath[0].base,dirname);
+    }
 
   path = fs::make_path(createpath[0].base,fusepath);