--- /dev/null
+/*
+ * $XConsortium: Whead.c,v 1.4 94/04/17 20:16:47 gildea Exp $
+ *
+ *
+Copyright (c) 1989 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+ * *
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+#include <X11/Xos.h>
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xdmcp.h>
+
+int
+XdmcpWriteHeader (buffer, header)
+ XdmcpBufferPtr buffer;
+ XdmcpHeaderPtr header;
+{
+ BYTE *newData;
+
+ if ((int)buffer->size < 6 + (int)header->length)
+ {
+ newData = (BYTE *) Xalloc (XDM_MAX_MSGLEN * sizeof (BYTE));
+ if (!newData)
+ return FALSE;
+ Xfree (buffer->data);
+ buffer->data = newData;
+ buffer->size = XDM_MAX_MSGLEN;
+ }
+ buffer->pointer = 0;
+ if (!XdmcpWriteCARD16 (buffer, header->version))
+ return FALSE;
+ if (!XdmcpWriteCARD16 (buffer, header->opcode))
+ return FALSE;
+ if (!XdmcpWriteCARD16 (buffer, header->length))
+ return FALSE;
+ return TRUE;
+}