static int c_lo_connect(u_sourceinfo *si, u_msg *msg)
{
u_link_block *block;
int port;
int af;
struct sockaddr_storage addr;
socklen_t addrlen = sizeof(addr);
/* TODO: remote version */
if (!(block = u_find_link(msg->argv[0]))) {
notice(si->u, "connect: host %s not in config", msg->argv[0]);
return 0;
}
port = block->port;
if (msg->argc > 1) {
port = atoi(msg->argv[1]);
if (port <= 0 || port >= 65536) {
port = block->port;
notice(si->u, "connect: %s: invalid port number; "
"using %d in config", msg->argv[1], port);
}
}
u_pton(block->host, &addr);
switch (addr.ss_family) {
case AF_INET6:
((struct sockaddr_in*) &addr)->sin_port = htons(port);
break;
case AF_INET:
((struct sockaddr_in6*)&addr)->sin6_port = htons(port);
break;
default:
notice(si->u, "connect: could not make host %s in config "
"into an address", block->host);
return 0;
}
u_link_connect(base_ev, block, (struct sockaddr*)&addr, addrlen);
return 0;
}
u_link *u_link_from_json(mowgli_json_t *jl)
{
u_link *link;
mowgli_json_t *jcookie, *jconn;
mowgli_string_t *jpass, *jslinkname;
ssize_t sz;
link = link_create();
if (json_ogetu(jl, "flags", &link->flags) < 0)
goto error;
if (json_ogetu(jl, "type", &link->type) < 0)
goto error;
if (json_ogeti(jl, "sendq", &link->sendq) < 0)
goto error;
if ((sz = json_ogetb64(jl, "ibuf", link->ibuf, IBUFSIZE)) < 0)
goto error;
link->ibuflen = sz;
link->ibuf[link->ibuflen] = '\0';
jpass = json_ogets(jl, "pass");
if (jpass) {
link->pass = malloc(jpass->pos+1);
memcpy(link->pass, jpass->str, jpass->pos);
link->pass[jpass->pos] = '\0';
}
jcookie = json_ogeto(jl, "ck_sendto");
if (!jcookie)
goto error;
if (u_cookie_from_json(jcookie, &link->ck_sendto) < 0)
goto error;
jconn = json_ogeto(jl, "conn");
if (!jconn)
goto error;
link->conn = u_conn_from_json(base_ev, &u_link_conn_ctx, link, jconn);
if (!link->conn)
goto error;
link->conn->priv = link;
/* This must run after the config has been loaded. */
switch (link->type) {
case LINK_USER:
/* If the user is post-registration, re-find his auth block. */
if (link->flags & U_LINK_REGISTERED) {
/* XXX: Should this be in user.c? */
link->conf.auth = u_find_auth(link);
if (!link->conf.auth)
goto error;
}
break;
case LINK_SERVER:
jslinkname = json_ogets(jl, "server_link_block_name");
if (!jslinkname)
goto error;
/* mowgli_string is NULL-terminated. We needn't care about NULLs. */
link->conf.link = u_find_link(jslinkname->str);
if (!link->conf.link)
goto error;
break;
default:
u_log(LG_SEVERE, "unexpected link type %d", link->type);
abort();
}
return link;
error:
if (link) {
free(link->pass);
free(link);
}
return NULL;
}