97 lines
3.9 KiB
C
97 lines
3.9 KiB
C
/* Copyright (c) 2001 Matej Pfajfar.
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* Copyright (c) 2001-2004, Roger Dingledine.
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* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
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* Copyright (c) 2007-2013, The Tor Project, Inc. */
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/* See LICENSE for licensing information */
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/**
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* \file buffers.h
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* \brief Header file for buffers.c.
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**/
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#ifndef TOR_BUFFERS_H
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#define TOR_BUFFERS_H
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buf_t *buf_new(void);
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buf_t *buf_new_with_capacity(size_t size);
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void buf_free(buf_t *buf);
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void buf_clear(buf_t *buf);
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buf_t *buf_copy(const buf_t *buf);
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void buf_shrink(buf_t *buf);
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void buf_shrink_freelists(int free_all);
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void buf_dump_freelist_sizes(int severity);
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size_t buf_datalen(const buf_t *buf);
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size_t buf_allocation(const buf_t *buf);
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size_t buf_slack(const buf_t *buf);
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int read_to_buf(tor_socket_t s, size_t at_most, buf_t *buf, int *reached_eof,
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int *socket_error);
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int read_to_buf_tls(tor_tls_t *tls, size_t at_most, buf_t *buf);
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int flush_buf(tor_socket_t s, buf_t *buf, size_t sz, size_t *buf_flushlen);
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int flush_buf_tls(tor_tls_t *tls, buf_t *buf, size_t sz, size_t *buf_flushlen);
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int write_to_buf(const char *string, size_t string_len, buf_t *buf);
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int write_to_buf_zlib(buf_t *buf, tor_zlib_state_t *state,
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const char *data, size_t data_len, int done);
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int move_buf_to_buf(buf_t *buf_out, buf_t *buf_in, size_t *buf_flushlen);
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int fetch_from_buf(char *string, size_t string_len, buf_t *buf);
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int fetch_var_cell_from_buf(buf_t *buf, var_cell_t **out, int linkproto);
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int fetch_from_buf_http(buf_t *buf,
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char **headers_out, size_t max_headerlen,
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char **body_out, size_t *body_used, size_t max_bodylen,
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int force_complete);
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socks_request_t *socks_request_new(void);
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void socks_request_free(socks_request_t *req);
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int fetch_from_buf_socks(buf_t *buf, socks_request_t *req,
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int log_sockstype, int safe_socks);
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int fetch_from_buf_socks_client(buf_t *buf, int state, char **reason);
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int fetch_from_buf_line(buf_t *buf, char *data_out, size_t *data_len);
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int peek_buf_has_control0_command(buf_t *buf);
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#ifdef USE_BUFFEREVENTS
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int fetch_var_cell_from_evbuffer(struct evbuffer *buf, var_cell_t **out,
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int linkproto);
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int fetch_from_evbuffer_socks(struct evbuffer *buf, socks_request_t *req,
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int log_sockstype, int safe_socks);
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int fetch_from_evbuffer_socks_client(struct evbuffer *buf, int state,
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char **reason);
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int fetch_from_evbuffer_http(struct evbuffer *buf,
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char **headers_out, size_t max_headerlen,
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char **body_out, size_t *body_used, size_t max_bodylen,
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int force_complete);
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int peek_evbuffer_has_control0_command(struct evbuffer *buf);
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int write_to_evbuffer_zlib(struct evbuffer *buf, tor_zlib_state_t *state,
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const char *data, size_t data_len,
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int done);
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#endif
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#ifdef USE_BUFFEREVENTS
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#define generic_buffer_new() evbuffer_new()
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#define generic_buffer_len(b) evbuffer_get_length((b))
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#define generic_buffer_add(b,dat,len) evbuffer_add((b),(dat),(len))
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#define generic_buffer_get(b,buf,buflen) evbuffer_remove((b),(buf),(buflen))
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#define generic_buffer_clear(b) evbuffer_drain((b), evbuffer_get_length((b)))
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#define generic_buffer_free(b) evbuffer_free((b))
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#else
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#define generic_buffer_new() buf_new()
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#define generic_buffer_len(b) buf_datalen((b))
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#define generic_buffer_add(b,dat,len) write_to_buf((dat),(len),(b))
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#define generic_buffer_get(b,buf,buflen) fetch_from_buf((buf),(buflen),(b))
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#define generic_buffer_clear(b) buf_clear((b))
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#define generic_buffer_free(b) buf_free((b))
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#endif
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int generic_buffer_set_to_copy(generic_buffer_t **output,
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const generic_buffer_t *input);
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void assert_buf_ok(buf_t *buf);
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#ifdef BUFFERS_PRIVATE
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int buf_find_string_offset(const buf_t *buf, const char *s, size_t n);
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#endif
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#endif
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