New upstream version 1.0.1+dfsgupstream/1.0.1+dfsgupstream

1 files changed, 44 insertions, 0 deletions

diff --git a/fuzz/FuzzingUtils.h b/fuzz/FuzzingUtils.h
new file mode 100644
index 0000000..74d27d3
--- /dev/null
+++ b/fuzz/FuzzingUtils.h
@@ -0,0 +1,44 @@
+// Copyright 2025 Mikhail Khachaiants <mkhachaiants@gmail.com>
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef URI_FUZZING_UTILS_H
+#  define URI_FUZZING_UTILS_H 1
+
+#  include "uriparser/Uri.h"
+#  include <fuzzer/FuzzedDataProvider.h>
+#  include <string>
+
+using UriString = std::basic_string<URI_CHAR>;
+
+inline UriString tryConsumeBytesAsString(FuzzedDataProvider & fdp, size_t chars) {
+    UriString str(chars, 0);
+    const size_t bytes = fdp.ConsumeData(str.data(), chars * sizeof(URI_CHAR));
+    // FuzzedDataProvider may provide less data than requested if the input is
+    // insufficiently long. We need to adjust the string length accordingly.
+    str.resize(bytes / sizeof(URI_CHAR));
+    return str;
+}
+
+inline UriString consumeRandomLengthString(FuzzedDataProvider & fdp) {
+    const size_t max_chars = fdp.remaining_bytes() / sizeof(URI_CHAR);
+    const size_t chars = fdp.ConsumeIntegralInRange<size_t>(0, max_chars);
+    return tryConsumeBytesAsString(fdp, chars);
+}
+
+inline UriString consumeRemainingBytesAsString(FuzzedDataProvider & fdp) {
+    const size_t chars = fdp.remaining_bytes() / sizeof(URI_CHAR);
+    return tryConsumeBytesAsString(fdp, chars);
+}
+
+#endif /* URI_FUZZING_UTILS_H */