From 5d603a01d8b43758db794f801f329042f5eb98c7 Mon Sep 17 00:00:00 2001
From: Philipp Schafft <lion@lion.leolix.org>
Date: Sat, 5 May 2018 06:41:29 +0000
Subject: [PATCH] Fix: Fixed a segfault when xsltApplyStylesheet() returns
 error

---
 src/xslt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/xslt.c b/src/xslt.c
index bfc33a3b..2e6797a5 100644
--- a/src/xslt.c
+++ b/src/xslt.c
@@ -311,9 +311,12 @@ void xslt_transform(xmlDocPtr doc, const char *xslfilename, client_t *client)
     }
 
     res = xsltApplyStylesheet(cur, doc, NULL);
-
-    if (xsltSaveResultToString (&string, &len, res, cur) < 0)
+    if (res != NULL) {
+        if (xsltSaveResultToString(&string, &len, res, cur) < 0)
+            problem = 1;
+    } else {
         problem = 1;
+    }
 
     /* lets find out the content type and character encoding to use */
     if (cur->encoding)