1 files changed, 34 insertions, 0 deletions
diff --git a/core/state.c b/core/state.c
new file mode 100644
index 0000000..8c3dea1
--- /dev/null
+++ b/core/state.c
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2026, Apollo Telephone Laboratories.
+ * Provided under the BSD-3 clause.
+ */
+
+#include <atas/state.h>
+#include <errno.h>
+
+int
+atas_state_init(const char *in_file, struct atas_state *state)
+{
+    if (in_file == NULL || state == NULL) {
+        errno = EINVAL;
+        return -1;
+    }
+
+    state->in_file = fopen(in_file, "r");
+    if (state->in_file == NULL) {
+        return -1;
+    }
+
+    return 0;
+}
+
+void
+atas_state_destroy(struct atas_state *state)
+{
+    if (state == NULL) {
+        return;
+    }
+
+    fclose(state->in_file);
+    state->in_file = NULL;
+}