3 files changed, 17 insertions, 0 deletions
diff --git a/src/client.c b/src/client.c
index b748541..9b73fbd 100644
--- a/src/client.c
+++ b/src/client.c
@@ -35,6 +35,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "libvchan.h"
+
 #include "client.h"
 
 /* head of client list */
@@ -94,3 +96,12 @@ client_remove_all(void)
 	while (!LIST_EMPTY(&clients))
 		client_remove(LIST_FIRST(&clients));
 }
+
+int
+client_send_message(struct client *c, unsigned char msg)
+{
+	if (!c->vchan)
+		return -1;
+
+	return libvchan_send(c->vchan, &msg, 1);
+}
diff --git a/src/client.h b/src/client.h
index 298c793..33df48c 100644
--- a/src/client.h
+++ b/src/client.h
@@ -33,6 +33,8 @@
 #ifndef _LINPICKER_CLIENT_H_
 #define _LINPICKER_CLIENT_H_
 
+#include "libvchan.h"
+
 #include "common.h"
 #include "buffer.h"
 #include "view.h"
@@ -66,6 +68,7 @@ struct client {
 	struct view      *bg;           /* background view      */
 	LIST_ENTRY(client) next;        /* linked list          */
 	struct XenInput  *input;        /* Xen input device     */
+	struct libvchan  *vchan;        /* libvchan endpoint    */
 };
 
 LIST_HEAD(client_list, client);
@@ -84,5 +87,7 @@ client_remove(struct client *c);
 void
 client_remove_all(void);
 
+int
+client_send_message(struct client *c, unsigned char msg);
 
 #endif /* _LINPICKER_CLIENT_H_ */
diff --git a/src/xen_server.c b/src/xen_server.c
index a178525..c264544 100644
--- a/src/xen_server.c
+++ b/src/xen_server.c
@@ -153,6 +153,7 @@ vchan_setup(struct xs_handle *xenstore, xc_interface* xen_xc, const char *path)
     if (fd_set_handler(d->fd, vchan_update, d) < 0)
 	goto err;
 
+    d->client->vchan = ctrl;
     vchan_queue(d);
 
     TAILQ_INSERT_TAIL(&vchans, d, next);