From: Marc Hoersken <info@marc-hoersken.de>
Date: Fri, 18 Apr 2014 21:53:48 +0000 (+0200)
Subject: tftp.c: fix possible dereference of null pointer
X-Git-Tag: curl-7_37_0~140
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3f74e149f88fef5419504439e0adee0d517d9033;p=thirdparty%2Fcurl.git

tftp.c: fix possible dereference of null pointer
---

diff --git a/lib/tftp.c b/lib/tftp.c
index 269d10f7ad..03a84e6311 100644
--- a/lib/tftp.c
+++ b/lib/tftp.c
@@ -1320,7 +1320,10 @@ static CURLcode tftp_do(struct connectdata *conn, bool *done)
     if(code)
       return code;
   }
+
   state = (tftp_state_data_t *)conn->proto.tftpc;
+  if(!state)
+    return CURLE_BAD_CALLING_ORDER;
 
   code = tftp_perform(conn, done);