/* Copyright 2017 - 2025 R. Thomas

* Copyright 2017 - 2025 Quarkslab

*

* 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.

*/

#include <iomanip>

#include <numeric>

#include <sstream>

#include "LIEF/ELF/hash.hpp"

#include "LIEF/ELF/SysvHash.hpp"

namespace LIEF {

namespace ELF {

void SysvHash::accept(Visitor& visitor) const {

visitor.visit(*this);

}

std::ostream& operator<<(std::ostream& os, const SysvHash& sysvhash) {

os << std::hex << std::left;

const std::vector<uint32_t>& buckets = sysvhash.buckets();

const std::vector<uint32_t>& chains = sysvhash.chains();

std::string buckets_str = std::accumulate(

std::begin(buckets),

std::end(buckets), std::string{},

[] (const std::string& a, uint32_t b) {

std::ostringstream dec_bucket;

dec_bucket << std::dec;

dec_bucket << b;

return a.empty() ? "[" + dec_bucket.str() : a + ", " + dec_bucket.str();

});

buckets_str += "]";

std::string chains_str = std::accumulate(

std::begin(chains),

std::end(chains), std::string{},

[] (const std::string& a, uint32_t b) {

std::ostringstream dec_bucket;

dec_bucket << std::dec;

dec_bucket << b;

return a.empty() ? "[" + dec_bucket.str() : a + ", " + dec_bucket.str();

});

buckets_str += "]";

os << std::setw(33) << std::setfill(' ') << "Number of buckets:" << sysvhash.nbucket() << '\n';

os << std::setw(33) << std::setfill(' ') << "Buckets:" << buckets_str << '\n';

os << std::setw(33) << std::setfill(' ') << "Number of chains:" << sysvhash.nchain() << '\n';

os << std::setw(33) << std::setfill(' ') << "Chains:" << chains_str << '\n';

return os;

}

} // namespace ELF

} // namespace LIEF