Bot persistence boilerplate

bot/lin/linpersist.c

@@ -0,0 +1,55 @@
+/* platform specific code for achieving persistence on linux */
+
+/* this is only used to check if another instance of laika is currently running */
+#define LAIKA_RESERVED_PORT 32876
+
+#include "persist.h"
+#include "lsocket.h"
+#include "lerror.h"
+
+static struct sLaika_socket laikaB_markerPort;
+
+/* check if laika is already running */
+bool laikaB_checkRunning() {
+    return true; /* stubbed for now */
+}
+
+/* check if laika is already installed on current machine */
+bool laikaB_checkPersist() {
+    return true; /* stubbed for now */
+}
+
+/* check if laika is running as super-user */
+bool laikaB_checkRoot() {
+    return true; /* stubbed for now */
+}
+
+/* mark that laika is currently running */
+void laikaB_markRunning() {
+#ifndef DEBUG
+    LAIKA_TRY
+        laikaS_initSocket(&laikaB_markerPort, NULL, NULL, NULL, NULL);
+        laikaS_bind(&laikaB_markerPort, LAIKA_RESERVED_PORT);
+    LAIKA_CATCH
+        LAIKA_DEBUG("Failed to bind marker port, laika is already running!\n");
+        exit(0);
+    LAIKA_TRYEND
+#endif
+}
+
+/* unmark that laika is currently running */
+void laikaB_unmarkRunning() {
+#ifndef DEBUG
+    laikaS_kill(&laikaB_markerPort);
+#endif
+}
+
+/* try to gain persistance on machine */
+void laikaB_tryPersist() {
+    /* stubbed */
+}
+
+/* try to gain root */
+void laikaB_tryRoot() {
+    /* stubbed */
+}