* file.c (w32_io_info): CreateFile failed on Win9x if file was already

  opened. (FILE_SHARE_READ was needed, but actually I don't understand
  the flags of CreateFile well...)


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@9604 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/file.c b/file.c
index ca8bdf2f9..92bbf8951 100644
--- a/file.c
+++ b/file.c
@@ -655,7 +655,8 @@ w32_io_info(VALUE *file, BY_HANDLE_FILE_INFORMATION *st)
     }
     else {
 	FilePathValue(*file);
-	f = CreateFile(StringValueCStr(*file), 0, 0, NULL, OPEN_EXISTING,
+	f = CreateFile(StringValueCStr(*file), 0,
+	               FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
 	               rb_w32_iswin95() ? 0 : FILE_FLAG_BACKUP_SEMANTICS, NULL);
 	if (f == INVALID_HANDLE_VALUE) return FALSE;
     }