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Diffstat (limited to 'src/or/dns.c')
-rw-r--r--src/or/dns.c76
1 files changed, 38 insertions, 38 deletions
diff --git a/src/or/dns.c b/src/or/dns.c
index 2d2914ff8f..1fa39caeeb 100644
--- a/src/or/dns.c
+++ b/src/or/dns.c
@@ -112,10 +112,10 @@ static void purge_expired_resolves(uint32_t now) {
/* this is fast because the linked list
* oldest_cached_resolve is ordered by when they came in.
*/
- while(oldest_cached_resolve && (oldest_cached_resolve->expire < now)) {
+ while (oldest_cached_resolve && (oldest_cached_resolve->expire < now)) {
resolve = oldest_cached_resolve;
log(LOG_DEBUG,"Forgetting old cached resolve (expires %lu)", (unsigned long)resolve->expire);
- if(resolve->state == CACHE_STATE_PENDING) {
+ if (resolve->state == CACHE_STATE_PENDING) {
log_fn(LOG_WARN,"Expiring a dns resolve that's still pending. Forgot to cull it?");
}
if (resolve->pending_connections) {
@@ -134,7 +134,7 @@ static void purge_expired_resolves(uint32_t now) {
}
}
oldest_cached_resolve = resolve->next;
- if(!oldest_cached_resolve) /* if there are no more, */
+ if (!oldest_cached_resolve) /* if there are no more, */
newest_cached_resolve = NULL; /* then make sure the list's tail knows that too */
SPLAY_REMOVE(cache_tree, &cache_root, resolve);
tor_free(resolve);
@@ -218,8 +218,8 @@ int dns_resolve(connection_t *exitconn) {
/* now check the tree to see if 'address' is already there. */
strlcpy(search.address, exitconn->address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
- if(resolve) { /* already there */
- switch(resolve->state) {
+ if (resolve) { /* already there */
+ switch (resolve->state) {
case CACHE_STATE_PENDING:
/* add us to the pending list */
pending_connection = tor_malloc_zero(
@@ -277,7 +277,7 @@ static int assign_to_dnsworker(connection_t *exitconn) {
dnsconn = connection_get_by_type_state(CONN_TYPE_DNSWORKER, DNSWORKER_STATE_IDLE);
- if(!dnsconn) {
+ if (!dnsconn) {
log_fn(LOG_WARN,"no idle dns workers. Failing.");
dns_cancel_pending_resolve(exitconn->address);
send_resolved_cell(exitconn, RESOLVED_TYPE_ERROR_TRANSIENT);
@@ -314,7 +314,7 @@ void connection_dns_remove(connection_t *conn)
strlcpy(search.address, conn->address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
- if(!resolve) {
+ if (!resolve) {
log_fn(LOG_WARN,"Address '%s' is not pending. Dropping.", conn->address);
return;
}
@@ -324,15 +324,15 @@ void connection_dns_remove(connection_t *conn)
pend = resolve->pending_connections;
- if(pend->conn == conn) {
+ if (pend->conn == conn) {
resolve->pending_connections = pend->next;
tor_free(pend);
log_fn(LOG_DEBUG, "First connection (fd %d) no longer waiting for resolve of '%s'",
conn->s, conn->address);
return;
} else {
- for( ; pend->next; pend = pend->next) {
- if(pend->next->conn == conn) {
+ for ( ; pend->next; pend = pend->next) {
+ if (pend->next->conn == conn) {
victim = pend->next;
pend->next = victim->next;
tor_free(victim);
@@ -352,7 +352,7 @@ void assert_connection_edge_not_dns_pending(connection_t *conn) {
struct cached_resolve *resolve;
SPLAY_FOREACH(resolve, cache_tree, &cache_root) {
- for(pend = resolve->pending_connections;
+ for (pend = resolve->pending_connections;
pend;
pend = pend->next) {
tor_assert(pend->conn != conn);
@@ -367,7 +367,7 @@ void assert_all_pending_dns_resolves_ok(void) {
struct cached_resolve *resolve;
SPLAY_FOREACH(resolve, cache_tree, &cache_root) {
- for(pend = resolve->pending_connections;
+ for (pend = resolve->pending_connections;
pend;
pend = pend->next) {
assert_connection_ok(pend->conn, 0);
@@ -390,7 +390,7 @@ void dns_cancel_pending_resolve(char *address) {
strlcpy(search.address, address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
- if(!resolve) {
+ if (!resolve) {
log_fn(LOG_WARN,"Address '%s' is not pending. Dropping.", address);
return;
}
@@ -400,12 +400,12 @@ void dns_cancel_pending_resolve(char *address) {
/* mark all pending connections to fail */
log_fn(LOG_DEBUG, "Failing all connections waiting on DNS resolve of '%s'",
address);
- while(resolve->pending_connections) {
+ while (resolve->pending_connections) {
pend = resolve->pending_connections;
pend->conn->state = EXIT_CONN_STATE_RESOLVEFAILED;
pendconn = pend->conn;
tor_assert(pendconn->s == -1);
- if(!pendconn->marked_for_close) {
+ if (!pendconn->marked_for_close) {
connection_edge_end(pendconn, END_STREAM_REASON_MISC, pendconn->cpath_layer);
}
circuit_detach_stream(circuit_get_by_conn(pendconn), pendconn);
@@ -423,17 +423,17 @@ static void dns_purge_resolve(struct cached_resolve *resolve) {
struct cached_resolve *tmp;
/* remove resolve from the linked list */
- if(resolve == oldest_cached_resolve) {
+ if (resolve == oldest_cached_resolve) {
oldest_cached_resolve = resolve->next;
- if(oldest_cached_resolve == NULL)
+ if (oldest_cached_resolve == NULL)
newest_cached_resolve = NULL;
} else {
/* FFFF make it a doubly linked list if this becomes too slow */
- for(tmp=oldest_cached_resolve; tmp && tmp->next != resolve; tmp=tmp->next) ;
+ for (tmp=oldest_cached_resolve; tmp && tmp->next != resolve; tmp=tmp->next) ;
tor_assert(tmp); /* it's got to be in the list, or we screwed up somewhere else */
tmp->next = resolve->next; /* unlink it */
- if(newest_cached_resolve == resolve)
+ if (newest_cached_resolve == resolve)
newest_cached_resolve = tmp;
}
@@ -460,7 +460,7 @@ static void dns_found_answer(char *address, uint32_t addr, char outcome) {
strlcpy(search.address, address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
- if(!resolve) {
+ if (!resolve) {
log_fn(LOG_INFO,"Resolved unasked address '%s'; caching anyway.", address);
resolve = tor_malloc_zero(sizeof(struct cached_resolve));
resolve->state = (outcome == DNS_RESOLVE_SUCCEEDED) ?
@@ -486,19 +486,19 @@ static void dns_found_answer(char *address, uint32_t addr, char outcome) {
/* tor_assert(resolve->state == CACHE_STATE_PENDING); */
resolve->addr = addr;
- if(outcome == DNS_RESOLVE_SUCCEEDED)
+ if (outcome == DNS_RESOLVE_SUCCEEDED)
resolve->state = CACHE_STATE_VALID;
else
resolve->state = CACHE_STATE_FAILED;
- while(resolve->pending_connections) {
+ while (resolve->pending_connections) {
pend = resolve->pending_connections;
assert_connection_ok(pend->conn,time(NULL));
pend->conn->addr = resolve->addr;
pendconn = pend->conn; /* don't pass complex things to the
connection_mark_for_close macro */
- if(resolve->state == CACHE_STATE_FAILED) {
+ if (resolve->state == CACHE_STATE_FAILED) {
/* prevent double-remove. */
pendconn->state = EXIT_CONN_STATE_RESOLVEFAILED;
if (pendconn->purpose == EXIT_PURPOSE_CONNECT) {
@@ -540,7 +540,7 @@ static void dns_found_answer(char *address, uint32_t addr, char outcome) {
tor_free(pend);
}
- if(outcome == DNS_RESOLVE_FAILED_TRANSIENT) { /* remove from cache */
+ if (outcome == DNS_RESOLVE_FAILED_TRANSIENT) { /* remove from cache */
dns_purge_resolve(resolve);
}
}
@@ -561,7 +561,7 @@ int connection_dns_finished_flushing(connection_t *conn) {
int connection_dns_reached_eof(connection_t *conn) {
log_fn(LOG_WARN,"Read eof. Worker died unexpectedly.");
- if(conn->state == DNSWORKER_STATE_BUSY) {
+ if (conn->state == DNSWORKER_STATE_BUSY) {
dns_cancel_pending_resolve(conn->address);
num_dnsworkers_busy--;
}
@@ -580,11 +580,11 @@ int connection_dns_process_inbuf(connection_t *conn) {
tor_assert(conn);
tor_assert(conn->type == CONN_TYPE_DNSWORKER);
- if(conn->state != DNSWORKER_STATE_BUSY) {
+ if (conn->state != DNSWORKER_STATE_BUSY) {
log_fn(LOG_WARN,"Bug: poll() indicated than an idle dns worker was readable. Please report.");
return 0;
}
- if(buf_datalen(conn->inbuf) < 5) /* entire answer available? */
+ if (buf_datalen(conn->inbuf) < 5) /* entire answer available? */
return 0; /* not yet */
tor_assert(conn->state == DNSWORKER_STATE_BUSY);
tor_assert(buf_datalen(conn->inbuf) == 5);
@@ -659,14 +659,14 @@ static int dnsworker_main(void *data) {
#endif
handle_signals(0); /* ignore interrupts from the keyboard, etc */
- for(;;) {
+ for (;;) {
- if(recv(fd, &address_len, 1, 0) != 1) {
+ if (recv(fd, &address_len, 1, 0) != 1) {
log_fn(LOG_INFO,"dnsworker exiting because tor process closed connection (either pruned idle dnsworker or died).");
spawn_exit();
}
- if(address_len && read_all(fd, address, address_len, 1) != address_len) {
+ if (address_len && read_all(fd, address, address_len, 1) != address_len) {
log_fn(LOG_ERR,"read hostname failed. Child exiting.");
spawn_exit();
}
@@ -692,7 +692,7 @@ static int dnsworker_main(void *data) {
break;
}
set_uint32(answer+1, ip);
- if(write_all(fd, answer, 5, 1) != 5) {
+ if (write_all(fd, answer, 5, 1) != 5) {
log_fn(LOG_ERR,"writing answer failed. Child exiting.");
spawn_exit();
}
@@ -706,7 +706,7 @@ static int spawn_dnsworker(void) {
int fd[2];
connection_t *conn;
- if(tor_socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) {
+ if (tor_socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) {
log(LOG_ERR, "Couldn't construct socketpair: %s",
tor_socket_strerror(tor_socket_errno(-1)));
tor_cleanup();
@@ -725,7 +725,7 @@ static int spawn_dnsworker(void) {
conn->s = fd[0];
conn->address = tor_strdup("<unused>");
- if(connection_add(conn) < 0) { /* no space, forget it */
+ if (connection_add(conn) < 0) { /* no space, forget it */
log_fn(LOG_WARN,"connection_add failed. Giving up.");
connection_free(conn); /* this closes fd[0] */
return -1;
@@ -752,7 +752,7 @@ static void spawn_enough_dnsworkers(void) {
* Maybe we should compromise and only kill if it's been at it for
* more than, e.g., 2 seconds. -RD
*/
- if(num_dnsworkers_busy == MAX_DNSWORKERS) {
+ if (num_dnsworkers_busy == MAX_DNSWORKERS) {
/* We always want at least one worker idle.
* So find the oldest busy worker and kill it.
*/
@@ -768,20 +768,20 @@ static void spawn_enough_dnsworkers(void) {
num_dnsworkers--;
}
- if(num_dnsworkers_busy >= MIN_DNSWORKERS)
+ if (num_dnsworkers_busy >= MIN_DNSWORKERS)
num_dnsworkers_needed = num_dnsworkers_busy+1;
else
num_dnsworkers_needed = MIN_DNSWORKERS;
- while(num_dnsworkers < num_dnsworkers_needed) {
- if(spawn_dnsworker() < 0) {
+ while (num_dnsworkers < num_dnsworkers_needed) {
+ if (spawn_dnsworker() < 0) {
log(LOG_WARN,"spawn_enough_dnsworkers(): spawn failed!");
return;
}
num_dnsworkers++;
}
- while(num_dnsworkers > num_dnsworkers_busy+MAX_IDLE_DNSWORKERS) { /* too many idle? */
+ while (num_dnsworkers > num_dnsworkers_busy+MAX_IDLE_DNSWORKERS) { /* too many idle? */
/* cull excess workers */
log_fn(LOG_WARN,"%d of %d dnsworkers are idle. Killing one.",
num_dnsworkers-num_dnsworkers_needed, num_dnsworkers);