1 files changed, 22 insertions, 0 deletions
diff --git a/dep/CascLib/src/CascOpenFile.cpp b/dep/CascLib/src/CascOpenFile.cpp
index f590155144d..9db3691af48 100644
--- a/dep/CascLib/src/CascOpenFile.cpp
+++ b/dep/CascLib/src/CascOpenFile.cpp
@@ -270,6 +270,28 @@ bool WINAPI CascOpenFile(HANDLE hStorage, const char * szFileName, DWORD dwLocal
     return (nError == ERROR_SUCCESS);
 }
 
+DWORD WINAPI CascGetFileId(HANDLE hStorage, const char * szFileName)
+{
+    TCascStorage * hs;
+
+    // Validate the storage handle
+    hs = IsValidStorageHandle(hStorage);
+    if (hs == NULL)
+    {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return false;
+    }
+
+    // Validate the other parameters
+    if (szFileName == NULL || szFileName[0] == 0)
+    {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return false;
+    }
+
+    return RootHandler_GetFileId(hs->pRootHandler, szFileName);
+}
+
 bool WINAPI CascCloseFile(HANDLE hFile)
 {
     TCascFile * hf;