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When our IP address changes, do not break all existing dns server sockets. Patch from Christopher Davis

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svn:r1329
This commit is contained in:
Nick Mathewson 2009-06-24 22:40:15 +00:00
parent 01be8708e9
commit f901f9867c
1 changed files with 4 additions and 6 deletions
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10
evdns.c
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@ -219,6 +219,7 @@ struct reply {
struct nameserver {
evutil_socket_t socket; /* a connected UDP socket */
struct sockaddr_storage address;
socklen_t addrlen;
int failed_times; /* number of times which we have given this server a chance */
int timedout; /* number of times in a row a request has timed out */
struct event event;
@ -2135,7 +2136,8 @@ static int
evdns_request_transmit_to(struct evdns_request *req, struct nameserver *server) {
int r;
ASSERT_LOCKED(req->base);
r = send(server->socket, req->request, req->request_len, 0);
r = sendto(server->socket, req->request, req->request_len, 0,
(struct sockaddr *)&server->address, server->addrlen);
if (r < 0) {
int err = evutil_socket_geterror(server->socket);
if (EVUTIL_ERR_RW_RETRIABLE(err))
@ -2421,12 +2423,8 @@ _evdns_nameserver_add_impl(struct evdns_base *base, const struct sockaddr *addre
}
}
if (connect(ns->socket, address, addrlen) != 0) {
err = 2;
goto out2;
}
memcpy(&ns->address, address, addrlen);
ns->addrlen = addrlen;
ns->state = 1;
event_assign(&ns->event, ns->base->event_base, ns->socket, EV_READ | EV_PERSIST, nameserver_ready_callback, ns);
if (event_add(&ns->event, NULL) < 0) {