/**
Ordered local closest node lookup
@return k neighbors in a list
*/
struct ilist*
KDA_Closest(KDA_ID object_id)
{
NOTE_FX(object_id);
struct ilist* result = ilist_create();
int d = XOR(self->id, object_id);
ilist_add(result, d, self);
for (int i = 0; i < KDA_SPACE_SIZE; i++)
{
for (struct list_item* item = k_bucket[i]->head;
item; item = item->next)
{
KDA_Neighbor* neighbor = (KDA_Neighbor*) item->data;
d = XOR(neighbor->id, object_id);
if (result->size < k)
{
ilist_ordered_insert(result, d, neighbor);
}
else if (d < result->tail->key)
{
ilist_ordered_insert(result, d, neighbor);
ilist_pop(result);
}
}
}
return result;
}
static void server_io (void) {
for (;;) {
int client = accept(server, NULL, 0);
if (client == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)) break;
check(client, "accept()");
setup_io(client);
clients = ilist_add(clients, client);
report("connect (%d)\n", client);
}
}
xmpp_ibb_session_t *xmpp_ibb_open(xmpp_conn_t * const conn, char * const peer, char * const sid)
{
xmpp_ibb_session_t *sess;
xmpp_stanza_t *iq, *open;
xmpp_ctx_t *ctx;
const char *jid = xmpp_conn_get_bound_jid(conn);
char sizetemp[6] = "";
int size;
if (peer == NULL || strlen(peer) == 0) {
return NULL;
}
sess = _ibb_session_init(conn, peer, sid);
if (sess == NULL) {
return NULL;
}
size = snprintf(sizetemp, sizeof(sizetemp), "%d", sess->block_size);
if (size < sizeof(sizetemp)) {
sizetemp[size] = '\0';
}
nmtoken_generate(sess->id, 8);
ctx = xmpp_conn_get_context(conn);
iq = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iq, "iq");
xmpp_stanza_set_type(iq, "set");
xmpp_stanza_set_id(iq, sess->id);
xmpp_stanza_set_attribute(iq, "from", jid);
xmpp_stanza_set_attribute(iq, "to", sess->peer);
open = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(open, "open");
xmpp_stanza_set_ns(open, XMLNS_IBB);
xmpp_stanza_set_attribute(open, "block-size", sizetemp);
xmpp_stanza_set_attribute(open, "sid", sess->sid);
xmpp_stanza_set_attribute(open, "stanza", "iq");
xmpp_stanza_add_child(iq, open);
xmpp_send(conn, iq);
xmpp_stanza_release(open);
xmpp_stanza_release(iq);
ilist_add(g_list, sess);
return sess;
}
static int _ibb_set_handler(xmpp_conn_t * const conn, xmpp_stanza_t * const stanza, void * const userdata)
{
xmpp_stanza_t *child;
xmpp_ibb_userdata_t * udata = (xmpp_ibb_userdata_t *) userdata;
xmpp_ibb_session_t * sess;
char *from, *id, *type;
id = xmpp_stanza_get_id(stanza);
from = xmpp_stanza_get_attribute(stanza, "from");
type = xmpp_stanza_get_type(stanza);
if ((child = xmpp_stanza_get_child_by_name(stanza, "open")) != NULL) {
char *sid = xmpp_stanza_get_attribute(child, "sid");
char *bsize = xmpp_stanza_get_attribute(child, "block-size");
if (sid == NULL || bsize == NULL) {
xmpp_iq_ack_error(conn, id, from, "cancel", "not-acceptable");
return 1;
} else {
xmpp_iq_ack_result(conn, id, from);
}
sess = _ibb_session_init(conn, from, sid);
strncpy(sess->id, id, sizeof(sess->id));
strncpy(sess->peer, from, sizeof(sess->peer));
sess->state = STATE_READY;
sess->block_size = atoi(bsize);
if (udata != NULL && udata->open_cb != NULL)
udata->open_cb(sess, type);
ilist_add(g_list, sess);
} else if ((child = xmpp_stanza_get_child_by_name(stanza, "data")) != NULL) {
char *sid = xmpp_stanza_get_attribute(child, "sid");
sess = ilist_finditem_func(g_list, _find_sid, sid);
if (sess != NULL) {
xmppdata_t xdata;
int seq = 0;
char *intext = xmpp_stanza_get_text(child);
xmpp_iq_ack_result(conn, id, from);
xdata.from = from;
strncpy(sess->id, id, sizeof(sess->id));
seq = atoi(xmpp_stanza_get_attribute(child, "seq"));
if (seq != (sess->recv_seq + 1)) {
//printf("sequence number is not continue. new seq %d last seq %d\n", seq, sess->recv_seq);
}
sess->recv_seq = seq;
xmpp_b64decode(intext, (char **) &xdata.data, (size_t *) &xdata.size);
if (udata != NULL && udata->recv_cb != NULL)
udata->recv_cb(sess, &xdata);
xmpp_b64free(sess->recv_data);
sess->recv_data = NULL;
} else {
//printf("unknown session is not in handle.\n");
xmpp_iq_ack_error(conn, id, from, "cancel", "item-not-found");
}
} else if ((child = xmpp_stanza_get_child_by_name(stanza, "close")) != NULL) {
char *sid = xmpp_stanza_get_attribute(child, "sid");
sess = ilist_finditem_func(g_list, _find_sid, sid);
if (sess != NULL) {
xmpp_iq_ack_result(conn, id, from);
strncpy(sess->id, id, sizeof(sess->id));
sess->state = STATE_NONE;
if (udata != NULL && udata->close_cb != NULL)
udata->close_cb(sess, type);
_ibb_session_release(sess);
}
}
time(&glast_ping_time);
return 1;
}
/*! \brief Add a new quest item
*
* Add a Quest info item to the current set
* \sa ILIST
* \param key The title of the item
* \param text The text to associate with it
* \author PH
* \date 20050429
*/
void add_questinfo(const char *key, const char *text)
{
ilist_add(&quest_list, key, text);
}
