Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / dll / np / nfs / options.c

diff --git a/dll/np/nfs/options.c b/dll/np/nfs/options.c
new file mode 100644 (file)
index 0000000..f32b1fe
--- /dev/null
+++ b/dll/np/nfs/options.c
@@ -0,0 +1,102 @@
+/* NFSv4.1 client for Windows
+ * Copyright © 2012 The Regents of the University of Michigan
+ *
+ * Olga Kornievskaia <aglo@umich.edu>
+ * Casey Bodley <cbodley@umich.edu>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * without any warranty; without even the implied warranty of merchantability
+ * or fitness for a particular purpose.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ */
+
+#include <windows.h>
+#include "options.h"
+
+
+DWORD InitializeConnectionInfo(
+    IN OUT PCONNECTION_INFO Connection,
+    IN PMOUNT_OPTION_BUFFER Options,
+    OUT LPWSTR *ConnectionName)
+{
+    DWORD result = WN_SUCCESS;
+    SIZE_T size;
+
+    /* verify that this is a mount options buffer */
+    if (Options &&
+        Options->Zero == 0 &&
+        Options->Secret == MOUNT_OPTION_BUFFER_SECRET)
+    {
+        Connection->Options = Options;
+        size = MAX_CONNECTION_BUFFER_SIZE(Options->Length);
+    }
+    else
+    {
+        Connection->Options = NULL;
+        size = MAX_CONNECTION_BUFFER_SIZE(0);
+    }
+
+    Connection->Buffer = LocalAlloc(LMEM_ZEROINIT, size);
+    if (Connection->Buffer)
+        *ConnectionName = (LPWSTR)Connection->Buffer->Buffer;
+    else
+        result = WN_OUT_OF_MEMORY;
+
+    return result;
+}
+
+#ifdef __REACTOS__
+FORCEINLINE SIZE_T ConnectionBufferSize(
+#else
+static FORCEINLINE SIZE_T ConnectionBufferSize(
+#endif
+    IN PCONNECTION_BUFFER Buffer)
+{
+    return sizeof(USHORT) + sizeof(USHORT) + sizeof(ULONG) +
+        Buffer->NameLength + Buffer->EaPadding + Buffer->EaLength;
+}
+
+void MarshalConnectionInfo(
+    IN OUT PCONNECTION_INFO Connection)
+{
+    PCONNECTION_BUFFER Buffer = Connection->Buffer;
+    LPWSTR ConnectionName = (LPWSTR)Buffer->Buffer;
+
+    Buffer->NameLength = (USHORT)(wcslen(ConnectionName) + 1) * sizeof(WCHAR);
+
+    /* copy the EaBuffer after the end of ConnectionName */
+    if (Connection->Options && Connection->Options->Length)
+    {
+        PBYTE ptr = Buffer->Buffer + Buffer->NameLength;
+        /* add padding so EaBuffer starts on a ULONG boundary */
+        Buffer->EaPadding = (USHORT)
+            (sizeof(ULONG) - (SIZE_T)ptr % sizeof(ULONG)) % sizeof(ULONG);
+        Buffer->EaLength = Connection->Options->Length;
+        ptr += Buffer->EaPadding;
+
+        RtlCopyMemory(ptr, Connection->Options->Buffer, Buffer->EaLength);
+    }
+
+    Connection->BufferSize = (ULONG)ConnectionBufferSize(Buffer);
+}
+
+void FreeConnectionInfo(
+    IN PCONNECTION_INFO Connection)
+{
+    if (Connection->Buffer)
+    {
+        LocalFree(Connection->Buffer);
+        Connection->Buffer = NULL;
+    }
+    Connection->Options = NULL;
+    Connection->BufferSize = 0;
+}