compress_zlib.h (1444B)
1 /* Copyright (c) 2003, Roger Dingledine 2 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson. 3 * Copyright (c) 2007-2021, The Tor Project, Inc. */ 4 /* See LICENSE for licensing information */ 5 6 /** 7 * \file compress_zlib.h 8 * \brief Header for compress_zlib.c 9 **/ 10 11 #ifndef TOR_COMPRESS_ZLIB_H 12 #define TOR_COMPRESS_ZLIB_H 13 14 int tor_zlib_method_supported(void); 15 16 const char *tor_zlib_get_version_str(void); 17 18 const char *tor_zlib_get_header_version_str(void); 19 20 /** Internal state for an incremental zlib/gzip compression/decompression. */ 21 typedef struct tor_zlib_compress_state_t tor_zlib_compress_state_t; 22 23 tor_zlib_compress_state_t * 24 tor_zlib_compress_new(int compress, 25 compress_method_t method, 26 compression_level_t compression_level); 27 28 tor_compress_output_t 29 tor_zlib_compress_process(tor_zlib_compress_state_t *state, 30 char **out, size_t *out_len, 31 const char **in, size_t *in_len, 32 int finish); 33 34 void tor_zlib_compress_free_(tor_zlib_compress_state_t *state); 35 #define tor_zlib_compress_free(st) \ 36 FREE_AND_NULL(tor_zlib_compress_state_t, \ 37 tor_zlib_compress_free_, (st)) 38 39 size_t tor_zlib_compress_state_size(const tor_zlib_compress_state_t *state); 40 41 size_t tor_zlib_get_total_allocation(void); 42 43 void tor_zlib_init(void); 44 45 #endif /* !defined(TOR_COMPRESS_ZLIB_H) */