1 files changed, 21 insertions, 0 deletions
diff --git a/src/fmt/test/fuzzing/main.cpp b/src/fmt/test/fuzzing/main.cpp
new file mode 100644
index 000000000..1053eeeb0
--- /dev/null
+++ b/src/fmt/test/fuzzing/main.cpp
@@ -0,0 +1,21 @@
+#include <cassert>
+#include <fstream>
+#include <sstream>
+#include <vector>
+#include "fuzzer_common.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* Data, size_t Size);
+int main(int argc, char* argv[]) {
+  for (int i = 1; i < argc; ++i) {
+    std::ifstream in(argv[i]);
+    assert(in);
+    in.seekg(0, std::ios_base::end);
+    const auto pos = in.tellg();
+    assert(pos >= 0);
+    in.seekg(0, std::ios_base::beg);
+    std::vector<char> buf(static_cast<size_t>(pos));
+    in.read(buf.data(), static_cast<long>(buf.size()));
+    assert(in.gcount() == pos);
+    LLVMFuzzerTestOneInput(fmt_fuzzer::as_bytes(buf.data()), buf.size());
+  }
+}