// Copyright 2016 the V8 project authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

#include "src/base/file-utils.h"

#include <stdlib.h>

#include <string.h>

#include "src/base/platform/platform.h"

namespace v8 {

namespace base {

std::unique_ptr<char[]> RelativePath(const char* exec_path, const char* name) {

DCHECK(exec_path);

size_t basename_start = strlen(exec_path);

while (basename_start > 0 &&

!OS::isDirectorySeparator(exec_path[basename_start - 1])) {

--basename_start;

}

size_t name_length = strlen(name);

auto buffer = std::make_unique<char[]>(basename_start + name_length + 1);

if (basename_start > 0) memcpy(buffer.get(), exec_path, basename_start);

memcpy(buffer.get() + basename_start, name, name_length);

return buffer;

}

} // namespace base

} // namespace v8