[openssh.git] / compress.h

/*
 * 
 * compress.h
 * 
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * 
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * 
 * Created: Wed Oct 25 22:12:46 1995 ylo
 * 
 * Interface to packet compression for ssh.
 * 
 */

/* RCSID("$Id$"); */

#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();

/* 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 */
Commit	Line	Data
8efc0c15	1	/*
5260325f	2	*
	3	* compress.h
	4	*
	5	* Author: Tatu Ylonen <ylo@cs.hut.fi>
	6	*
	7	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
	8	* All rights reserved
	9	*
	10	* Created: Wed Oct 25 22:12:46 1995 ylo
	11	*
	12	* Interface to packet compression for ssh.
	13	*
	14	*/
8efc0c15	15
	16	/* RCSID("$Id$"); */
	17
	18	#ifndef COMPRESS_H
	19	#define COMPRESS_H
	20
	21	/* Initializes compression; level is compression level from 1 to 9 (as in
	22	gzip). */
5260325f	23	void buffer_compress_init(int level);
8efc0c15	24
8efc0c15	25	/* Frees any data structures allocated by buffer_compress_init. */
5260325f	26	void buffer_compress_uninit();
8efc0c15	27
	28	/* Compresses the contents of input_buffer into output_buffer. All
	29	packets compressed using this function will form a single
	30	compressed data stream; however, data will be flushed at the end of
	31	every call so that each output_buffer can be decompressed
	32	independently (but in the appropriate order since they together
	33	form a single compression stream) by the receiver. This appends
	34	the compressed data to the output buffer. */
5260325f	35	void buffer_compress(Buffer * input_buffer, Buffer * output_buffer);
8efc0c15	36
	37	/* Uncompresses the contents of input_buffer into output_buffer. All
	38	packets uncompressed using this function will form a single
	39	compressed data stream; however, data will be flushed at the end of
	40	every call so that each output_buffer. This must be called for the
	41	same size units that the buffer_compress was called, and in the
	42	same order that buffers compressed with that. This appends the
	43	uncompressed data to the output buffer. */
5260325f	44	void buffer_uncompress(Buffer * input_buffer, Buffer * output_buffer);
8efc0c15	45
5260325f	46	#endif /* COMPRESS_H */