tor/src/or/dns.h
Nick Mathewson b7843ca554 Make DNS callback pass IPv6 answers to dns_answer_found
Also, count ipv6 timeouts vs others.  If we have too many ipv6
requests time out, then we could be degrading performance because of a
broken DNS server that ignores AAAA requests.  Other cases in which
we never learn an AAAA address aren't so bad, since they don't slow
A (ipv4) answers down very much.
2012-11-14 23:16:23 -05:00

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C

/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2012, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file dns.h
* \brief Header file for dns.c.
**/
#ifndef TOR_DNS_H
#define TOR_DNS_H
int dns_init(void);
int has_dns_init_failed(void);
void dns_free_all(void);
uint32_t dns_clip_ttl(uint32_t ttl);
int dns_reset(void);
void connection_dns_remove(edge_connection_t *conn);
void assert_connection_edge_not_dns_pending(edge_connection_t *conn);
void assert_all_pending_dns_resolves_ok(void);
void dns_cancel_pending_resolve(const char *question);
int dns_resolve(edge_connection_t *exitconn);
void dns_launch_correctness_checks(void);
int dns_seems_to_be_broken(void);
int dns_seems_to_be_broken_for_ipv6(void);
void dns_reset_correctness_checks(void);
void dump_dns_mem_usage(int severity);
#endif