1 /* Copyright (c) 2001 Matej Pfajfar.
2 * Copyright (c) 2001-2004, Roger Dingledine.
3 * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
4 * Copyright (c) 2007-2011, The Tor Project, Inc. */
5 /* See LICENSE for licensing information */
9 * \brief Header file for buffers.c.
12 #ifndef _TOR_BUFFERS_H
13 #define _TOR_BUFFERS_H
16 buf_t
*buf_new_with_capacity(size_t size
);
17 void buf_free(buf_t
*buf
);
18 void buf_clear(buf_t
*buf
);
19 void buf_shrink(buf_t
*buf
);
20 void buf_shrink_freelists(int free_all
);
21 void buf_dump_freelist_sizes(int severity
);
23 size_t buf_datalen(const buf_t
*buf
);
24 size_t buf_allocation(const buf_t
*buf
);
25 size_t buf_slack(const buf_t
*buf
);
27 int read_to_buf(int s
, size_t at_most
, buf_t
*buf
, int *reached_eof
,
29 int read_to_buf_tls(tor_tls_t
*tls
, size_t at_most
, buf_t
*buf
);
31 int flush_buf(int s
, buf_t
*buf
, size_t sz
, size_t *buf_flushlen
);
32 int flush_buf_tls(tor_tls_t
*tls
, buf_t
*buf
, size_t sz
, size_t *buf_flushlen
);
34 int write_to_buf(const char *string
, size_t string_len
, buf_t
*buf
);
35 int write_to_buf_zlib(buf_t
*buf
, tor_zlib_state_t
*state
,
36 const char *data
, size_t data_len
, int done
);
37 int move_buf_to_buf(buf_t
*buf_out
, buf_t
*buf_in
, size_t *buf_flushlen
);
38 int fetch_from_buf(char *string
, size_t string_len
, buf_t
*buf
);
39 int fetch_var_cell_from_buf(buf_t
*buf
, var_cell_t
**out
, int linkproto
);
40 int fetch_from_buf_http(buf_t
*buf
,
41 char **headers_out
, size_t max_headerlen
,
42 char **body_out
, size_t *body_used
, size_t max_bodylen
,
44 int fetch_from_buf_socks(buf_t
*buf
, socks_request_t
*req
,
45 int log_sockstype
, int safe_socks
);
46 int fetch_from_buf_socks_client(buf_t
*buf
, int state
, char **reason
);
47 int fetch_from_buf_line(buf_t
*buf
, char *data_out
, size_t *data_len
);
49 int peek_buf_has_control0_command(buf_t
*buf
);
51 void assert_buf_ok(buf_t
*buf
);
53 #ifdef BUFFERS_PRIVATE
54 int buf_find_string_offset(const buf_t
*buf
, const char *s
, size_t n
);