Added new error codes

@@ -97,6 +97,23 @@ extern "C" {
   /* Requested item not found */
 #define MU_ERR_BUFSPACE             (MU_ERR_BASE + 40)
   /* Not enough buffer space */
+
+#define MU_ERR_SQL                  (MU_ERR_BASE + 41)
+  /* SQL error */ 
+#define MU_ERR_DB_ALREADY_CONNECTED (MU_ERR_BASE + 42)
+  /* Already connected to the database */ 
+#define MU_ERR_DB_NOT_CONNECTED     (MU_ERR_BASE + 43)
+  /* Not connected to the database */
+#define MU_ERR_RESULT_NOT_RELEASED  (MU_ERR_BASE + 44)
+  /* Result of the previous query is not released */
+#define MU_ERR_NO_QUERY             (MU_ERR_BASE + 45)
+  /* No query was executed */
+#define MU_ERR_BAD_COLUMN           (MU_ERR_BASE + 46)
+  /* Bad column address */
+#define MU_ERR_NO_RESULT            (MU_ERR_BASE + 47)
+  /* No result from the previous query available */
+#define MU_ERR_NO_INTERFACE         (MU_ERR_BASE + 48)
+  /* No such interface */
   
 const char *mu_errname __P((int e));
 const char *mu_strerror __P((int e));

@@ -99,6 +99,15 @@ mu_errname (int e)
       EN(MU_ERR_PARSE);
       EN(MU_ERR_NOENT);
       EN(MU_ERR_BUFSPACE);
+
+      EN(MU_ERR_SQL);
+      EN(MU_ERR_DB_ALREADY_CONNECTED);
+      EN(MU_ERR_DB_NOT_CONNECTED);
+      EN(MU_ERR_RESULT_NOT_RELEASED);
+      EN(MU_ERR_NO_QUERY);
+      EN(MU_ERR_BAD_COLUMN);
+      EN(MU_ERR_NO_RESULT);
+      EN(MU_ERR_NO_INTERFACE);
     }
 
   snprintf (buf, sizeof buf, _("Error %d"), e);
@@ -167,6 +176,16 @@ mu_strerror (int e)
       ES(MU_ERR_PARSE,            _("Parse error"));
       ES(MU_ERR_NOENT,            _("Requested item not found"));
       ES(MU_ERR_BUFSPACE,         _("Not enough buffer space"));
+
+      ES(MU_ERR_SQL,              _("SQL error"));
+      ES(MU_ERR_DB_ALREADY_CONNECTED, _("Already connected to the database"));
+      ES(MU_ERR_DB_NOT_CONNECTED,     _("Not connected to the database"));
+      ES(MU_ERR_RESULT_NOT_RELEASED,  _("Result of the previous query is not released"));
+      ES(MU_ERR_NO_QUERY,         _("No query was executed"));
+      ES(MU_ERR_BAD_COLUMN,       _("Bad column address"));
+      ES(MU_ERR_NO_RESULT,        _("No result from the previous query available"));
+
+      ES(MU_ERR_NO_INTERFACE,     _("No such interface"));
     }
 
   return msg ? msg : strerror (e);