db_berkeley: clean gcc warnings

pg_cmd.c:183:17: warning: variable ‘pcmd’ set but not used [-Wunused-but-set-variable]
pg_cmd.c:372:17: warning: variable ‘pcmd’ set but not used [-Wunused-but-set-variable]
pg_cmd.c:396:17: warning: variable ‘pcmd’ set but not used [-Wunused-but-set-variable]
bdb_cmd.c:512:13: warning: variable ‘bcon’ set but not used [-Wunused-but-set-variable]
bdb_cmd.c:511:13: warning: variable ‘bres’ set but not used [-Wunused-but-set-variable]
bdb_con.c:52:13: warning: variable ‘buri’ set but not used [-Wunused-but-set-variable]
km_bdb_res.c:405:2: warning: enumeration value ‘DB1_UNKNOWN’ not handled in switch [-Wswitch]
km_bdb_res.c:498:2: warning: enumeration value ‘DB1_UNKNOWN’ not handled in switch [-Wswitch]
km_bdb_val.c:105:2: warning: enumeration value ‘DB1_UNKNOWN’ not handled in switch [-Wswitch]
km_db_berkeley.c:779:6: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
km_db_berkeley.c:907:6: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]

modules/db_berkeley/bdb_cmd.c

@@ -507,17 +507,11 @@ int bdb_cmd_first(db_res_t* res)
 
 int bdb_cmd_next(db_res_t* res)
 {
-	db_con_t *con;
-	bdb_res_t *bres;
-	bdb_con_t *bcon;
 	bdb_cmd_t *bcmd;
 	DBT key, data;
 	int ret;
 	static char dbuf[MAX_ROW_SIZE];
 
-	con = res->cmd->ctx->con[db_payload_idx];
-	bres = DB_GET_PAYLOAD(res);
-	bcon = DB_GET_PAYLOAD(con);
 	bcmd = DB_GET_PAYLOAD(res->cmd);
 
 	if (bcmd->next_flag == 2 || bcmd->next_flag == -2) return 1;

modules/db_berkeley/bdb_con.c

@@ -49,12 +49,9 @@
  */
 static void bdb_con_free(db_con_t* con, bdb_con_t *payload)
 {
-	bdb_uri_t *buri;
 	if (!payload)
 		return;
 
-	buri = DB_GET_PAYLOAD(con->uri);
-
 	/* Delete the structure only if there are no more references
 	 * to it in the connection pool
 	 */

modules/db_berkeley/km_bdb_res.c

@@ -429,6 +429,8 @@ int bdb_is_neq_type(db_type_t _t0, db_type_t _t1)
 		case DB1_BITMAP:
 			if (_t0==DB1_INT)
 				return 0;
+		default:
+			break;
 	}
 	return 1;
 }
@@ -545,6 +547,8 @@ int bdb_cmp_val(db_val_t* _vp, db_val_t* _v)
 		case DB1_BITMAP:
 			return (_vp->val.int_val<_v->val.bitmap_val)?-1:
 				(_vp->val.int_val>_v->val.bitmap_val)?1:0;
+		default:
+			break;
 	}
 	return -2;
 }

modules/db_berkeley/km_bdb_val.c

@@ -173,6 +173,8 @@ int bdb_str2val(db_type_t _t, db_val_t* _v, char* _s, int _l)
 		VAL_TYPE(_v) = DB1_BLOB;
 		LM_DBG("got blob len %d\n", _l);
 		return 0;
+	default:
+		break;
 	}
 
 	return -6;

modules/db_berkeley/km_db_berkeley.c

@@ -776,13 +776,13 @@ int bdb_delete(db1_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v, int _n)
 	tbl_cache_p _tbc = NULL;
 	table_p _tp = NULL;
 	char kbuf[MAX_ROW_SIZE];
-	int i, j, ret, klen;
+	int ret, klen;
 	int *lkey=NULL;
 	DBT key;
 	DB *db;
 	DBC *dbcp;
 
-	i = j = ret = 0;
+	ret = 0;
 	klen=MAX_ROW_SIZE;
 
 	if (_op)
@@ -904,13 +904,13 @@ int _bdb_delete_cursor(db1_con_t* _h, db_key_t* _k, db_op_t* _op, db_val_t* _v,
 	db1_res_t* _r   = NULL;
 	char kbuf[MAX_ROW_SIZE];
 	char dbuf[MAX_ROW_SIZE];
-	int i, ret, klen=MAX_ROW_SIZE;
+	int ret, klen=MAX_ROW_SIZE;
 	DBT key, data;
 	DB *db;
 	DBC *dbcp;
 	int *lkey=NULL;
 	
-	i = ret = 0;
+	ret = 0;
 	
 	if ((!_h) || !CON_TABLE(_h))
 		return -1;