correct file open modes

diff --git a/ext/dba/dba_dbm.c b/ext/dba/dba_dbm.c
index ff079a7760c8c92416d0ed9c8f30dac29bbec2e5..343affa0acc62e34997090ab0c79980f330d5b2f 100644 (file)
--- a/ext/dba/dba_dbm.c
+++ b/ext/dba/dba_dbm.c
@@ -73,11 +73,13 @@ DBA_OPEN_FUNC(dbm)
                        fmode = "r";
                        break;
                case DBA_WRITER:
-                       fmode = "a+";
+                       fmode = "r+b";
                        break;
                case DBA_CREAT:
+                       fmode = "a+b";
+                       break;
                case DBA_TRUNC:
-                       fmode = "w+";
+                       fmode = "w+b";
                        break;
                default:
                        return FAILURE; /* not possible */