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Annotation of src/usr.bin/ssh/compress.h, Revision 1.2

1.1       deraadt     1: /*
1.2     ! deraadt     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:  */
1.1       deraadt    15:
1.2     ! deraadt    16: /* RCSID("$Id: compress.h,v 1.1 1999/09/26 20:53:34 deraadt Exp $"); */
1.1       deraadt    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). */
1.2     ! deraadt    23: void    buffer_compress_init(int level);
1.1       deraadt    24:
                     25: /* Frees any data structures allocated by buffer_compress_init. */
1.2     ! deraadt    26: void    buffer_compress_uninit();
1.1       deraadt    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. */
1.2     ! deraadt    35: void    buffer_compress(Buffer * input_buffer, Buffer * output_buffer);
1.1       deraadt    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. */
1.2     ! deraadt    44: void    buffer_uncompress(Buffer * input_buffer, Buffer * output_buffer);
1.1       deraadt    45:
1.2     ! deraadt    46: #endif                         /* COMPRESS_H */