fresh git tree for public release

we regretfully had to remove our git history for licensing reasons

Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>

dll/options.c

@@ -0,0 +1,100 @@
+/* Copyright (c) 2010
+ * The Regents of the University of Michigan
+ * All Rights Reserved
+ *
+ * Permission is granted to use, copy and redistribute this software
+ * for noncommercial education and research purposes, so long as no
+ * fee is charged, and so long as the name of the University of Michigan
+ * is not used in any advertising or publicity pertaining to the use
+ * or distribution of this software without specific, written prior
+ * authorization.  Permission to modify or otherwise create derivative
+ * works of this software is not granted.
+ *
+ * This software is provided as is, without representation or warranty
+ * of any kind either express or implied, including without limitation
+ * the implied warranties of merchantability, fitness for a particular
+ * purpose, or noninfringement.  The Regents of the University of
+ * Michigan shall not be liable for any damages, including special,
+ * indirect, incidental, or consequential damages, with respect to any
+ * claim arising out of or in connection with the use of the software,
+ * even if it has been or is hereafter advised of the possibility of
+ * such damages.
+ */
+
+#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;
+}
+
+static FORCEINLINE SIZE_T ConnectionBufferSize(
+    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;
+}