1 files changed, 127 insertions, 0 deletions
diff --git a/xbmc/filesystem/ISO9660File.cpp b/xbmc/filesystem/ISO9660File.cpp
new file mode 100644
index 0000000..83de0cc
--- /dev/null
+++ b/xbmc/filesystem/ISO9660File.cpp
@@ -0,0 +1,127 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "ISO9660File.h"
+
+#include "URL.h"
+
+#include <cmath>
+
+using namespace XFILE;
+
+CISO9660File::CISO9660File() : m_iso(new ISO9660::IFS())
+{
+}
+
+bool CISO9660File::Open(const CURL& url)
+{
+  if (m_iso && m_stat)
+    return true;
+
+  if (!m_iso->open(url.GetHostName().c_str()))
+    return false;
+
+  m_stat.reset(m_iso->stat(url.GetFileName().c_str()));
+
+  if (!m_stat)
+    return false;
+
+  if (!m_stat->p_stat)
+    return false;
+
+  m_start = m_stat->p_stat->lsn;
+  m_current = 0;
+
+  return true;
+}
+
+int CISO9660File::Stat(const CURL& url, struct __stat64* buffer)
+{
+  if (!m_iso)
+    return -1;
+
+  if (!m_stat)
+    return -1;
+
+  if (!m_stat->p_stat)
+    return -1;
+
+  if (!buffer)
+    return -1;
+
+  *buffer = {};
+  buffer->st_size = m_stat->p_stat->size;
+
+  switch (m_stat->p_stat->type)
+  {
+    case 2:
+      buffer->st_mode = S_IFDIR;
+      break;
+    case 1:
+    default:
+      buffer->st_mode = S_IFREG;
+      break;
+  }
+
+  return 0;
+}
+
+ssize_t CISO9660File::Read(void* buffer, size_t size)
+{
+  const int maxSize = std::min(size, static_cast<size_t>(GetLength()));
+  const int blocks = std::ceil(maxSize / ISO_BLOCKSIZE);
+
+  if (m_current > std::ceil(GetLength() / ISO_BLOCKSIZE))
+    return -1;
+
+  auto read = m_iso->seek_read(buffer, m_start + m_current, blocks);
+
+  m_current += blocks;
+
+  return read;
+}
+
+int64_t CISO9660File::Seek(int64_t filePosition, int whence)
+{
+  int block = std::floor(filePosition / ISO_BLOCKSIZE);
+
+  switch (whence)
+  {
+    case SEEK_SET:
+      m_current = block;
+      break;
+    case SEEK_CUR:
+      m_current += block;
+      break;
+    case SEEK_END:
+      m_current = std::ceil(GetLength() / ISO_BLOCKSIZE) + block;
+      break;
+  }
+
+  return m_current * ISO_BLOCKSIZE;
+}
+
+int64_t CISO9660File::GetLength()
+{
+  return m_stat->p_stat->size;
+}
+
+int64_t CISO9660File::GetPosition()
+{
+  return m_current * ISO_BLOCKSIZE;
+}
+
+bool CISO9660File::Exists(const CURL& url)
+{
+  return Open(url);
+}
+
+int CISO9660File::GetChunkSize()
+{
+  return ISO_BLOCKSIZE;
+}