io.c: copy in binary mode

* io.c (copy_stream_body): should write in binary mode.  based on a
  patch by godfat (Lin Jen-Shin) at [ruby-core:56556].
  [ruby-core:56518] [Bug #8767]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 2 deletions

diff --git a/io.c b/io.c
index 5cffc6eeec..8d2ed8d06c 100644
--- a/io.c
+++ b/io.c
@@ -10229,9 +10229,9 @@ copy_stream_body(VALUE arg)
 #ifdef O_BINARY
     if (src_fptr)
 	SET_BINARY_MODE_WITH_SEEK_CUR(src_fptr);
-    if (dst_fptr)
-	setmode(dst_fd, O_BINARY);
 #endif
+    if (dst_fptr)
+	rb_io_ascii8bit_binmode(dst_io);
 
     if (stp->src_offset == (off_t)-1 && src_fptr && src_fptr->rbuf.len) {
         size_t len = src_fptr->rbuf.len;