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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-13 09:19:20 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2015-12-13 09:19:20 +0000
commit739d9a37cb03f01dc92b9e4f401e6cd83b6e1ab8 (patch)
treeea6a76c581db2829843ef70592cd876bddb254db /ext/win32ole
parent207360044ba6e03e2132fdef2985a485da9a8466 (diff)
win32ole.c: check argument type
* ext/win32ole/win32ole.c (ole_vstr2wc): check argument type, vstr must be a String here. reported by Marcin 'Icewall' Noga of Cisco Talos. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53074 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/win32ole')
-rw-r--r--ext/win32ole/win32ole.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/ext/win32ole/win32ole.c b/ext/win32ole/win32ole.c
index 14147ab..02ad82b 100644
--- a/ext/win32ole/win32ole.c
+++ b/ext/win32ole/win32ole.c
@@ -860,6 +860,11 @@ ole_vstr2wc(VALUE vstr)
LPWSTR pw;
st_data_t data;
struct st_table *tbl = DATA_PTR(enc2cp_hash);
+
+ /* do not type-conversion here to prevent from other arguments
+ * changing (if exist) */
+ Check_Type(vstr, T_STRING);
+
enc = rb_enc_get(vstr);
if (st_lookup(tbl, (VALUE)enc | FIXNUM_FLAG, &data)) {