1 files changed, 17 insertions, 8 deletions
diff --git a/subprojects/plugin_hostlist/filterlist.cpp b/subprojects/plugin_hostlist/filterlist.cpp
index 42be349..a0fd414 100644
--- a/subprojects/plugin_hostlist/filterlist.cpp
+++ b/subprojects/plugin_hostlist/filterlist.cpp
@@ -6,14 +6,26 @@
  * SPDX-License-Identifier: GPL-3.0
  */
 
-#include "filterlist.hpp"
+#include "filterlist.h"
 #include <QIODevice>
 #include <QTextStream>
 
 using namespace Hostlist;
 
+#ifdef FUZZER
+extern "C" int LLVMFuzzerTestOneInput(const char *Data, long long Size)
+{
+    Filterlist::parseRule(QString::fromLatin1(Data, Size));
+    return 0;
+}
+#endif
+
 std::map<Filterlist::DomainHash, Filterlist::Rule> Filterlist::parseRule(const QString &line)
 {
+    if(line.isEmpty() || line.at(0) == '#') {
+        return {};
+    }
+
     auto parts = line.trimmed().split(' ');
     if(parts.size() < 2) {
         return {};
@@ -36,14 +48,11 @@ bool Filterlist::load(QIODevice &from)
 
     while(from.bytesAvailable() > 0) {
         const auto line = from.readLine(512).trimmed();
-        if(!line.isEmpty() && line.at(0) != '#') {
-            auto r = parseRule(line);
-            if(!r.empty()) {
-                qDebug("merging in %lu rules", r.size());
-                rules.merge(r);
-            }
+        auto r = parseRule(line);
+        if(!r.empty()) {
+            qDebug("merging in %lu rules", r.size());
+            rules.merge(r);
         }
     }
     return true;
 }
-