* io.c (copy_stream_body): call rb_io_check_readable and

  rb_io_check_writable.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16128 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/io.c b/io.c
index 22b82bba8d..d682ea288a 100644
--- a/io.c
+++ b/io.c
@@ -6628,6 +6628,7 @@ copy_stream_body(VALUE arg)
             stp->close_src = 1;
         }
         GetOpenFile(src_io, src_fptr);
+        rb_io_check_readable(src_fptr);
         src_fd = src_fptr->fd;
     }
     stp->src_fd = src_fd;
@@ -6660,6 +6661,7 @@ copy_stream_body(VALUE arg)
             stp->dst = dst_io;
         }
         GetOpenFile(dst_io, dst_fptr);
+        rb_io_check_writable(dst_fptr);
         dst_fd = dst_fptr->fd;
     }
     stp->dst_fd = dst_fd;