added devcontainer

src/state.h

@@ -0,0 +1,27 @@
+#ifndef OPENUF_STATE_H
+#define OPENUF_STATE_H
+
+#include <stdbool.h>
+
+#define OPENUF_CONFIG_SCHEMA 3
+
+typedef struct {
+    bool  adopted;
+    char  authkey[64];
+    char  inform_url[256];
+    char  cfgversion[32];
+    bool  config_applied;
+    int   config_schema;
+    bool  use_aes_gcm;
+    char  mac[32];
+    char  ip[64];
+    char  hostname[64];
+} openuf_state_t;
+
+/* Load state from OPENUF_STATE_FILE.  Fills defaults if file missing. */
+void state_load(openuf_state_t *st);
+
+/* Persist state to OPENUF_STATE_FILE (creates /etc/openuf/ if needed). */
+int  state_save(const openuf_state_t *st);
+
+#endif /* OPENUF_STATE_H */