From 5ff65a47686854b082fca1fbb7b64e11e9a47e3f Mon Sep 17 00:00:00 2001
From: Andrej Kacian <ticho@claws-mail.org>
Date: Wed, 3 Jul 2019 11:02:20 +0200
Subject: [PATCH] Fix a crash in litehtml plugin if one of the MIME parts has
 no Content-ID

---
 src/plugins/litehtml_viewer/lh_widget.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/litehtml_viewer/lh_widget.cpp b/src/plugins/litehtml_viewer/lh_widget.cpp
index 7f87b0d4d..fb2d2a640 100644
--- a/src/plugins/litehtml_viewer/lh_widget.cpp
+++ b/src/plugins/litehtml_viewer/lh_widget.cpp
@@ -447,8 +447,9 @@ GdkPixbuf *lh_widget::get_local_image(const litehtml::tstring url) const
 		size_t len = strlen(name);
 
 		/* p->id is in format "<partname>" */
-		if (!strncasecmp(name, p->id + 1, len) &&
+		if (p->id != NULL &&
 				strlen(p->id) >= len + 2 &&
+				!strncasecmp(name, p->id + 1, len) &&
 				*(p->id + len + 1) == '>') {
 			GInputStream *stream;
 			GError *error = NULL;
-- 
2.25.1