Part 2 of prior commit

1 files changed, 141 insertions, 0 deletions

diff --git a/tdm/backend/protodpy.c b/tdm/backend/protodpy.c
new file mode 100644
index 000000000..08c38fbd1
--- /dev/null
+++ b/tdm/backend/protodpy.c
@@ -0,0 +1,141 @@
+/*
+
+Copyright 1988, 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 COPYRIGHT HOLDERS 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 a copyright holder 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 copyright holder.
+
+*/
+
+/*
+ * xdm - display manager daemon
+ * Author: Keith Packard, MIT X Consortium
+ *
+ * manage a collection of proto-displays.  These are displays for
+ * which sessionID's have been generated, but no session has been
+ * started.
+ */
+
+#include <config.h>
+
+#ifdef XDMCP
+
+#include "dm.h"
+#include "dm_error.h"
+
+static struct protoDisplay *protoDisplays;
+
+struct protoDisplay *
+FindProtoDisplay(
+                 XdmcpNetaddr address,
+                 int addrlen,
+                 CARD16 displayNumber )
+{
+	struct protoDisplay *pdpy;
+
+	Debug( "FindProtoDisplay\n" );
+	for (pdpy = protoDisplays; pdpy; pdpy=pdpy->next) {
+		if (pdpy->displayNumber == displayNumber &&
+		    addressEqual( address, addrlen, pdpy->address, pdpy->addrlen ))
+		{
+			return pdpy;
+		}
+	}
+	return (struct protoDisplay *)0;
+}
+
+static void
+TimeoutProtoDisplays (void)
+{
+	struct protoDisplay *pdpy, *next;
+
+	for (pdpy = protoDisplays; pdpy; pdpy = next) {
+		next = pdpy->next;
+		if (pdpy->date < (unsigned long)(now - PROTO_TIMEOUT))
+			DisposeProtoDisplay( pdpy );
+	}
+}
+
+struct protoDisplay *
+NewProtoDisplay( XdmcpNetaddr address, int addrlen, CARD16 displayNumber,
+                 CARD16 connectionType, ARRAY8Ptr connectionAddress,
+                 CARD32 sessionID )
+{
+	struct protoDisplay *pdpy;
+
+	Debug( "NewProtoDisplay\n" );
+	TimeoutProtoDisplays ();
+	pdpy = (struct protoDisplay *)Malloc( sizeof(*pdpy) );
+	if (!pdpy)
+		return NULL;
+	pdpy->address = (XdmcpNetaddr)Malloc( addrlen );
+	if (!pdpy->address) {
+		free( (char *)pdpy );
+		return NULL;
+	}
+	pdpy->addrlen = addrlen;
+	memmove( pdpy->address, address, addrlen );
+	pdpy->displayNumber = displayNumber;
+	pdpy->connectionType = connectionType;
+	pdpy->date = now;
+	if (!XdmcpCopyARRAY8( connectionAddress, &pdpy->connectionAddress )) {
+		free( (char *)pdpy->address );
+		free( (char *)pdpy );
+		return NULL;
+	}
+	pdpy->sessionID = sessionID;
+	pdpy->fileAuthorization = (Xauth *)NULL;
+	pdpy->xdmcpAuthorization = (Xauth *)NULL;
+	pdpy->next = protoDisplays;
+	protoDisplays = pdpy;
+	return pdpy;
+}
+
+void
+DisposeProtoDisplay( pdpy )
+	struct protoDisplay *pdpy;
+{
+	struct protoDisplay *p, *prev;
+
+	prev = 0;
+	for (p = protoDisplays; p; p=p->next) {
+		if (p == pdpy)
+			break;
+		prev = p;
+	}
+	if (!p)
+		return;
+	if (prev)
+		prev->next = pdpy->next;
+	else
+		protoDisplays = pdpy->next;
+	bzero( &pdpy->key, sizeof(pdpy->key) );
+	if (pdpy->fileAuthorization)
+		XauDisposeAuth( pdpy->fileAuthorization );
+	if (pdpy->xdmcpAuthorization)
+		XauDisposeAuth( pdpy->xdmcpAuthorization );
+	XdmcpDisposeARRAY8( &pdpy->connectionAddress );
+	free( (char *)pdpy->address );
+	free( (char *)pdpy );
+}
+
+#endif /* XDMCP */