/*

* (C) 2016,2017 Jack Lloyd

*

* Botan is released under the Simplified BSD License (see license.txt)

*/

#include "fuzzers.h"

#include <botan/asn1_print.h>

#include <fstream>

class ASN1_Parser final : public Botan::ASN1_Formatter {

   public:

      ASN1_Parser() : Botan::ASN1_Formatter(true, 64) {}

   protected:

      std::string format(Botan::ASN1_Type, Botan::ASN1_Class, size_t, size_t, std::string_view) const override {

         return "";

      }

      std::string format_bin(Botan::ASN1_Type, Botan::ASN1_Class, const std::vector<uint8_t>&) const override {

         return "";

      }

      std::string format_bn(const Botan::BigInt&) const override { return ""; }

};

void fuzz(std::span<const uint8_t> in) {

   try {

      /*

      * Here we use an uninitialized ofstream so the fuzzer doesn't spend time

      * on actual output formatting, no memory is allocated, etc.

      */

      std::ofstream out;

      ASN1_Parser printer;

      printer.print_to_stream(out, in.data(), in.size());

   } catch(Botan::Exception& e) {}

}