Fix bug 73507

Author: K0R0L

DesktopEditor/fontengine/TextShaper.cpp

@@ -451,7 +451,7 @@ namespace NSShaper
 		CheckUnicodeFaceName(face, family_name, family_name_len);
 
 		unsigned int nLen1 = (unsigned int)family_name_len;
-		unsigned int nLen2 = (unsigned int)strlen(face->style_name);
+		unsigned int nLen2 = (unsigned int)((face->style_name != NULL) ? strlen(face->style_name) : 0);
 
 		unsigned int nLen = 28 + nLen1 + 1 + nLen2 + 1 + 1 + (int)face->num_fixed_sizes;
 

DesktopEditor/fontengine/TextShaper_p.h

@@ -94,11 +94,14 @@ void CheckUnicodeFaceName(FT_Face pFace, int*& UName, unsigned int& ULen)
 	bool isBadASCII = false;
 
 	unsigned int face_name_len = 0;
-	while ('\0' != face_name[face_name_len])
+	if (NULL != face_name)
 	{
-		if ('?' == face_name[face_name_len])
-			isBadASCII = true;
-		++face_name_len;
+		while ('\0' != face_name[face_name_len])
+		{
+			if ('?' == face_name[face_name_len])
+				isBadASCII = true;
+			++face_name_len;
+		}
 	}
 
 	if (face_name_len > 6 &&