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// Native.cs created with MonoDevelop
// User: alan at 12:18 13/10/2008
//
// To change standard headers go to Edit->Preferences->Coding->Standard Headers
//
using System;
using System.Runtime.InteropServices;
namespace zipsharp
{
static class NativeZip
{
const int DEFAULT_COMPRESSION = 0;
const int Z_DEFLATED = 8;
public static void CloseArchive (ZipHandle handle)
{
CloseArchive (handle, null);
}
public static void CloseArchive (ZipHandle handle, string comment)
{
zipClose (handle, comment);
handle.SetHandleAsInvalid ();
}
public static void CloseFile (ZipHandle handle)
{
zipCloseFileInZip (handle);
}
public static ZipHandle OpenArchive (ZlibFileFuncDef funcDef, Append append)
{
ZipHandle h = zipOpen2 ("", (int) append, IntPtr.Zero, ref funcDef);
if (h.IsInvalid)
throw new Exception ("Could not open the zip archive");
return h;
}
public static int OpenFile (ZipHandle handle, string filename)
{
return OpenFile (handle, filename, DEFAULT_COMPRESSION);
}
public static int OpenFile (ZipHandle handle, string filename, int compressionLevel)
{
ZipFileInfo fileInfo = new ZipFileInfo (DateTime.Now);
int method = compressionLevel == 0 ? 0 : Z_DEFLATED;
return zipOpenNewFileInZip (handle, filename, ref fileInfo, IntPtr.Zero, 0, IntPtr.Zero, 0, "", method, compressionLevel);
}
public static unsafe void Write (ZipHandle handle, byte[] buffer, int offset, uint count)
{
fixed (byte* b = &buffer[offset])
zipWriteInFileInZip (handle, b, count);
}
[DllImport ("MonoPosixHelper")]
static extern unsafe int zipWriteInFileInZip (ZipHandle handle,
byte* buffer,
uint len);
[DllImport ("MonoPosixHelper")]
static extern int zipCloseFileInZip (ZipHandle handle);
[DllImport ("MonoPosixHelper")]
static extern ZipHandle zipOpen2 (string pathname,
int append,
IntPtr globalcomment, // zipcharpc*
ref ZlibFileFuncDef pzlib_filefunc_def); // zlib_filefunc_def*
[DllImport ("MonoPosixHelper")]
static extern int zipClose (ZipHandle handle, string globalComment);
[DllImport ("MonoPosixHelper")]
static extern int zipOpenNewFileInZip (ZipHandle handle,
string filename,
ref ZipFileInfo zipfi,
IntPtr extrafield_local,
uint size_extrafield_local,
IntPtr extrafield_global,
uint size_extrafield_global,
string comment,
int method,
int level);
}
}
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