From 1e8097a4b895e673846be848feffdd0556041a65 Mon Sep 17 00:00:00 2001
From: Tomoyuki Sahara <tsahara@iij.ad.jp>
Date: Sat, 16 Nov 2013 05:12:22 +0900
Subject: IO.sysopen raises an exception when open(2) fails.  closes #6.

---
 src/io.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/io.c')

diff --git a/src/io.c b/src/io.c
index 2438a1101..79f72d386 100644
--- a/src/io.c
+++ b/src/io.c
@@ -396,6 +396,8 @@ mrb_io_s_sysopen(mrb_state *mrb, mrb_value klass)
 
   flags = mrb_io_modestr_to_flags(mrb, mrb_string_value_cstr(mrb, &mode));
   fd = io_open(mrb, path, flags, perm);
+  if (fd == -1)
+    mrb_sys_fail(mrb, mrb_str_to_cstr(mrb, path));
 
   return mrb_fixnum_value(fd);
 }
-- 
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