sync code with last improvements from OpenBSD

lib/libXdmcp/Flush.c

@@ -0,0 +1,53 @@
+/*
+Copyright 1989, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+ * *
+ * Author:  Keith Packard, MIT X Consortium
+ */
+
+#ifdef WIN32
+#define _WILLWINSOCK_
+#endif
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/Xos.h>
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xdmcp.h>
+
+#ifdef WIN32
+#include <X11/Xwinsock.h>
+#else
+#include <sys/socket.h>
+#endif
+
+int
+XdmcpFlush (int fd, XdmcpBufferPtr buffer, XdmcpNetaddr to, int tolen)
+{
+    int result;
+    result = sendto (fd, (char *)buffer->data, buffer->pointer, 0,
+		     (struct sockaddr *)to, tolen);
+    if (result != buffer->pointer)
+	return FALSE;
+    return TRUE;
+}