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r7008@Kushana: nickm | 2006-08-03 10:03:39 -0700

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Oops. We shouldnt initialize eventdns when we are not being a server and not resolving anything.


svn:r6975
This commit is contained in:
Nick Mathewson 2006-08-04 18:24:41 +00:00
parent a122bfb439
commit 87939813c3
1 changed files with 36 additions and 26 deletions
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62
src/or/dns.c
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@ -104,6 +104,8 @@ static int launch_resolve(edge_connection_t *exitconn);
static int dnsworker_main(void *data);
static int spawn_dnsworker(void);
static int spawn_enough_dnsworkers(void);
#else
static void configure_nameservers(void);
#endif
static void assert_cache_ok(void);
static void assert_resolve_ok(cached_resolve_t *resolve);
@ -156,34 +158,10 @@ eventdns_log_cb(const char *msg)
void
dns_init(void)
{
init_cache_map();
dnsworkers_rotate();
#ifdef USE_EVENTDNS
{
or_options_t *options = get_options();
eventdns_set_log_fn(eventdns_log_cb);
if (options->Nameservers && smartlist_len(options->Nameservers)) {
log_info(LD_EXIT, "Configuring nameservers from Tor configuration");
SMARTLIST_FOREACH(options->Nameservers, const char *, ip,
{
struct in_addr in;
if (tor_inet_aton(ip, &in)) {
log_info(LD_EXIT, "Adding nameserver '%s'", ip);
eventdns_nameserver_add(in.s_addr);
}
});
} else {
#ifdef MS_WINDOWS
eventdns_config_windows_nameservers();
#else
log_info(LD_EXIT, "Parsing /etc/resolv.conf");
eventdns_resolv_conf_parse(DNS_OPTION_NAMESERVERS|DNS_OPTION_MISC,
"/etc/resolv.conf");
#endif
}
}
#endif
if (server_mode(get_options()))
configure_nameservers();
}
uint32_t
@ -1198,6 +1176,36 @@ connection_dns_reached_eof(connection_t *conn)
tor_assert(0);
return 0;
}
static int nameservers_configured = 0;
static void
configure_nameservers(void)
{
or_options_t *options;
if (nameservers_configured)
return;
options = get_options();
eventdns_set_log_fn(eventdns_log_cb);
if (options->Nameservers && smartlist_len(options->Nameservers)) {
log_info(LD_EXIT, "Configuring nameservers from Tor configuration");
SMARTLIST_FOREACH(options->Nameservers, const char *, ip,
{
struct in_addr in;
if (tor_inet_aton(ip, &in)) {
log_info(LD_EXIT, "Adding nameserver '%s'", ip);
eventdns_nameserver_add(in.s_addr);
}
});
} else {
#ifdef MS_WINDOWS
eventdns_config_windows_nameservers();
#else
log_info(LD_EXIT, "Parsing /etc/resolv.conf");
eventdns_resolv_conf_parse(DNS_OPTION_NAMESERVERS|DNS_OPTION_MISC,
"/etc/resolv.conf");
#endif
}
nameservers_configured = 1;
}
static void
eventdns_callback(int result, char type, int count, int ttl, void *addresses,
void *arg)
@ -1237,6 +1245,8 @@ launch_resolve(edge_connection_t *exitconn)
{
char *addr = tor_strdup(exitconn->_base.address);
int r;
if (!nameservers_configured)
configure_nameservers();
log_info(LD_EXIT, "Launching eventdns request for %s",
escaped_safe_str(exitconn->_base.address));
r = eventdns_resolve(exitconn->_base.address, DNS_QUERY_NO_SEARCH,