Changeset 77641 in vbox for trunk/src/VBox

Timestamp:

Mar 11, 2019 1:28:09 AM (6 years ago)

Author:

vboxsync

Message:

IPRT/fileio-win.cpp: Corrected RTFileReadAt so it does not return VERR_EOF when pcbRead is non-NULL, preserving the previous behavior and unixy host behaviour of the function. bugref:9172

File:

• trunk/src/VBox/Runtime/r3/win/fileio-win.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/win/fileio-win.cpp

@@ -550 +550 @@
         return VINF_SUCCESS;
     }
-    return RTErrConvertFromWin32(GetLastError());
+
+    /* We will get an EOF error when using overlapped I/O.  So, make sure we don't
+       return it when pcbhRead is not NULL. */
+    DWORD dwErr = GetLastError();
+    if (pcbRead && dwErr == ERROR_HANDLE_EOF)
+    {
+        *pcbRead = 0;
+        return VINF_SUCCESS;
+    }
+    return RTErrConvertFromWin32(dwErr);
 }