ntdll: Add a helper function to map a section.

dlls/ntdll/unix/env.c

@@ -2458,10 +2458,9 @@ NTSTATUS WINAPI NtGetNlsSectionPtr( ULONG type, ULONG id, void *unknown, void **
     }
     if (!status)
     {
-        *ptr = NULL;
-        *size = 0;
-        status = NtMapViewOfSection( handle, GetCurrentProcess(), ptr, 0, 0, NULL, size,
-                                     ViewShare, 0, PAGE_READONLY );
+        status = map_section( handle, ptr, size, PAGE_READONLY );
+        NtClose( handle );
+    }
     }
     NtClose( handle );
     return status;

dlls/ntdll/unix/loader.c

@@ -2032,11 +2032,7 @@ static void load_apiset_dll(void)
     }
     if (!status)
     {
-        ptr = NULL;
-        size = 0;
-        status = NtMapViewOfSection( mapping, NtCurrentProcess(), &ptr,
-                                     is_win64 && wow_peb ? 0x7fffffff : 0, 0, NULL,
-                                     &size, ViewShare, 0, PAGE_READONLY );
+        status = map_section( mapping, &ptr, &size, PAGE_READONLY );
         NtClose( mapping );
     }
     if (!status)

dlls/ntdll/unix/unix_private.h

@@ -450,4 +450,12 @@ static inline void init_unicode_string( UNICODE_STRING *str, const WCHAR *data )
     str->Buffer = (WCHAR *)data;
 }
 
+static inline NTSTATUS map_section( HANDLE mapping, void **ptr, SIZE_T *size, ULONG protect )
+{
+    *ptr = NULL;
+    *size = 0;
+    return NtMapViewOfSection( mapping, NtCurrentProcess(), ptr, is_win64 && wow_peb ? 0x7fffffff : 0,
+                               0, NULL, size, ViewShare, 0, protect );
+}
+
 #endif /* __NTDLL_UNIX_PRIVATE_H */