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9d5bc1a935
This patch refactors the `torgzip` module to allow us to extend a common compression API to support multiple compression backends. Additionally we move the gzip/zlib code into its own module under the name `compress_zlib`. See https://bugs.torproject.org/21664
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* Copyright (c) 2003, Roger Dingledine
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2017, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file compress_zlib.h
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* \brief Header for compress_zlib.c
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**/
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#ifndef TOR_COMPRESS_ZLIB_H
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#define TOR_COMPRESS_ZLIB_H
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const char *
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tor_zlib_get_version_str(void);
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const char *
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tor_zlib_get_header_version_str(void);
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int
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tor_zlib_compress(char **out, size_t *out_len,
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const char *in, size_t in_len,
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compress_method_t method);
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int
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tor_zlib_uncompress(char **out, size_t *out_len,
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const char *in, size_t in_len,
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compress_method_t method,
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int complete_only,
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int protocol_warn_level);
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/** Internal state for an incremental zlib/gzip compression/decompression. */
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typedef struct tor_zlib_compress_state_t tor_zlib_compress_state_t;
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tor_zlib_compress_state_t *
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tor_zlib_compress_new(int compress,
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compress_method_t method,
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compression_level_t compression_level);
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tor_compress_output_t
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tor_zlib_compress_process(tor_zlib_compress_state_t *state,
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char **out, size_t *out_len,
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const char **in, size_t *in_len,
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int finish);
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void
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tor_zlib_compress_free(tor_zlib_compress_state_t *state);
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size_t
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tor_zlib_compress_state_size(const tor_zlib_compress_state_t *state);
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size_t
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tor_zlib_get_total_allocation(void);
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#endif // TOR_COMPRESS_ZLIB_H.
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