/* Copyright 2017 - 2022 R. Thomas
 * Copyright 2017 - 2022 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 "Segment.hpp"

namespace LIEF {
namespace ELF {

void init_c_segments(Elf_Binary_t* c_binary, Binary* binary) {

  Binary::it_segments segments = binary->segments();
  c_binary->segments = static_cast<Elf_Segment_t**>(
      malloc((segments.size() + 1) * sizeof(Elf_Segment_t**)));
  for (size_t i = 0; i < segments.size(); ++i) {
    Segment& segment = segments[i];

    span<const uint8_t> segment_content = segment.content();
    auto* content = static_cast<uint8_t*>(malloc(segment_content.size() * sizeof(uint8_t)));
    std::copy(
        std::begin(segment_content),
        std::end(segment_content),
        content);

    c_binary->segments[i] = static_cast<Elf_Segment_t*>(malloc(sizeof(Elf_Segment_t)));
    c_binary->segments[i]->type            = static_cast<enum LIEF_ELF_SEGMENT_TYPES>(segment.type());
    c_binary->segments[i]->flags           = static_cast<uint32_t>(segment.flags());
    c_binary->segments[i]->virtual_address = segment.virtual_address();
    c_binary->segments[i]->virtual_size    = segment.virtual_size();
    c_binary->segments[i]->offset          = segment.file_offset();
    c_binary->segments[i]->alignment       = segment.alignment();
    c_binary->segments[i]->size            = segment_content.size();
    c_binary->segments[i]->content         = content;
  }

  c_binary->segments[segments.size()] = nullptr;

}



void destroy_segments(Elf_Binary_t* c_binary) {

  Elf_Segment_t **segments = c_binary->segments;
  for (size_t idx = 0; segments[idx] != nullptr; ++idx) {
    free(segments[idx]->content);
    free(segments[idx]);
  }
  free(c_binary->segments);

}

}
}