kernel: env support

src/include/kernel/env.h

@@ -0,0 +1,11 @@
+#ifndef _ENV_H_INCLUDE
+#define _ENV_H_INCLUDE
+
+#include <stdbool.h>
+
+int env_set(const char*, const char*);
+char* env_get(const char*);
+bool env_isset(const char*);
+void env_init();
+
+#endif