Alexandre Julliard : ntdll: Detect the fake dlls created by setupapi and refuse to load them.

[Alexandre Julliard]

Module: wine
Branch: refs/heads/master
Commit: 2f2819466bbc551ae37d72c7c9a759bd82d5e003
URL:    http://source.winehq.org/git/?p=wine.git;a=commit;h=2f2819466bbc551ae37d72c7c9a759bd82d5e003

Author: Alexandre Julliard <julliard at winehq.org>
Date:   Tue Mar 21 11:31:23 2006 +0100

ntdll: Detect the fake dlls created by setupapi and refuse to load them.

---

 dlls/ntdll/loader.c |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index efc2bed..967c298 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -1202,6 +1202,22 @@ NTSTATUS WINAPI LdrGetProcedureAddress(H
 
 
 /***********************************************************************
+ *           is_fake_dll
+ *
+ * Check if a loaded native dll is a Wine fake dll.
+ */
+static BOOL is_fake_dll( const void *base )
+{
+    static const char fakedll_signature[] = "Wine placeholder DLL";
+    const IMAGE_DOS_HEADER *dos = base;
+
+    if (dos->e_lfanew >= sizeof(*dos) + sizeof(fakedll_signature) &&
+        !memcmp( dos + 1, fakedll_signature, sizeof(fakedll_signature) )) return TRUE;
+    return FALSE;
+}
+
+
+/***********************************************************************
  *           get_builtin_fullname
  *
  * Build the full pathname for a builtin dll.
@@ -1371,6 +1387,13 @@ static NTSTATUS load_native_dll( LPCWSTR
     NtClose( mapping );
     if (status != STATUS_SUCCESS) return status;
 
+    if (is_fake_dll( module ))
+    {
+        TRACE( "%s is a fake dll, not loading it\n", debugstr_w(name) );
+        NtUnmapViewOfSection( NtCurrentProcess(), module );
+        return STATUS_DLL_NOT_FOUND;
+    }
+
     /* create the MODREF */
 
     if (!(wm = alloc_module( module, name ))) return STATUS_NO_MEMORY;