51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/* $NetBSD: compress.h,v 1.1.1.2 2001/01/14 04:50:16 itojun Exp $ */
|
|
|
|
/*
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
* All rights reserved
|
|
* Interface to packet compression for ssh.
|
|
*
|
|
* As far as I am concerned, the code I have written for this software
|
|
* can be used freely for any purpose. Any derived versions of this
|
|
* software must be clearly marked as such, and if the derived work is
|
|
* incompatible with the protocol description in the RFC file, it must be
|
|
* called by a name other than "ssh" or "Secure Shell".
|
|
*/
|
|
|
|
/* from OpenBSD: compress.h,v 1.7 2000/12/20 19:37:22 markus Exp */
|
|
|
|
#ifndef COMPRESS_H
|
|
#define COMPRESS_H
|
|
|
|
/*
|
|
* Initializes compression; level is compression level from 1 to 9 (as in
|
|
* gzip).
|
|
*/
|
|
void buffer_compress_init(int level);
|
|
|
|
/* Frees any data structures allocated by buffer_compress_init. */
|
|
void buffer_compress_uninit(void);
|
|
|
|
/*
|
|
* Compresses the contents of input_buffer into output_buffer. All packets
|
|
* compressed using this function will form a single compressed data stream;
|
|
* however, data will be flushed at the end of every call so that each
|
|
* output_buffer can be decompressed independently (but in the appropriate
|
|
* order since they together form a single compression stream) by the
|
|
* receiver. This appends the compressed data to the output buffer.
|
|
*/
|
|
void buffer_compress(Buffer * input_buffer, Buffer * output_buffer);
|
|
|
|
/*
|
|
* Uncompresses the contents of input_buffer into output_buffer. All packets
|
|
* uncompressed using this function will form a single compressed data
|
|
* stream; however, data will be flushed at the end of every call so that
|
|
* each output_buffer. This must be called for the same size units that the
|
|
* buffer_compress was called, and in the same order that buffers compressed
|
|
* with that. This appends the uncompressed data to the output buffer.
|
|
*/
|
|
void buffer_uncompress(Buffer * input_buffer, Buffer * output_buffer);
|
|
|
|
#endif /* COMPRESS_H */
|