common: implement conversion from b_status to ivy_status

common/include/ivy/status.h

@@ -3,6 +3,8 @@
 
 #include <ivy/misc.h>
 
+enum b_status;
+
 enum ivy_status {
 	IVY_OK = 0,
 	IVY_ERR_EOF = -1,
@@ -13,8 +15,11 @@ enum ivy_status {
 	IVY_ERR_INTERNAL_FAILURE = -6,
 	IVY_ERR_BAD_STATE = -7,
 	IVY_ERR_INVALID_VALUE = -8,
+	IVY_ERR_NO_ENTRY = -9,
+	IVY_ERR_NAME_EXISTS = -10,
 };
 
 IVY_API const char *ivy_status_to_string(enum ivy_status status);
+IVY_API enum ivy_status ivy_status_from_b_status(enum b_status status);
 
 #endif