diff options
Diffstat (limited to 'io.c')
-rw-r--r-- | io.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -177,6 +177,7 @@ rb_io_taint_check(io) { if (!OBJ_TAINTED(io) && rb_safe_level() >= 4) rb_raise(rb_eSecurityError, "Insecure: operation on untainted IO"); + rb_check_frozen(io); return io; } @@ -2270,6 +2271,7 @@ rb_io_become(clone, io) char *mode; io = rb_io_get_io(io); + if (clone == io) return clone; GetOpenFile(io, orig); MakeOpenFile(clone, fptr); |