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