51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
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*
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* compress.h
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*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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*
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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*
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* Created: Wed Oct 25 22:12:46 1995 ylo
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*
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* Interface to packet compression for ssh.
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*
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*/
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/* RCSID("$Id: compress.h,v 1.4 2000/04/14 10:30:31 markus Exp $"); */
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#ifndef COMPRESS_H
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#define COMPRESS_H
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/*
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* Initializes compression; level is compression level from 1 to 9 (as in
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* gzip).
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*/
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void buffer_compress_init(int level);
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/* Frees any data structures allocated by buffer_compress_init. */
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void buffer_compress_uninit();
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/*
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* Compresses the contents of input_buffer into output_buffer. All packets
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* compressed using this function will form a single compressed data stream;
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* however, data will be flushed at the end of every call so that each
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* output_buffer can be decompressed independently (but in the appropriate
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* order since they together form a single compression stream) by the
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* receiver. This appends the compressed data to the output buffer.
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*/
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void buffer_compress(Buffer * input_buffer, Buffer * output_buffer);
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/*
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* Uncompresses the contents of input_buffer into output_buffer. All packets
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* uncompressed using this function will form a single compressed data
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* stream; however, data will be flushed at the end of every call so that
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* each output_buffer. This must be called for the same size units that the
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* buffer_compress was called, and in the same order that buffers compressed
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* with that. This appends the uncompressed data to the output buffer.
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*/
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void buffer_uncompress(Buffer * input_buffer, Buffer * output_buffer);
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#endif /* COMPRESS_H */
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