/* add_nameserver()
*
* input - either an IPV4 address in dotted quad
* or an IPV6 address in : format
* output - NONE
* side effects - entry in irc_nsaddr_list is filled in as needed
*/
static void
add_nameserver(const char *arg)
{
struct addrinfo hints, *res;
/* Done max number of nameservers? */
if (irc_nscount >= IRCD_MAXNS) {
ilog (L_MAIN, "Too many nameservers, ignoring %s", arg);
return;
}
ilog (L_MAIN, "Using nameserver: %s", arg);
memset(&hints, 0, sizeof(hints));
hints.ai_family = PF_UNSPEC;
hints.ai_socktype = SOCK_DGRAM;
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
if (getaddrinfo(arg, "domain", &hints, &res))
return;
if (res == NULL)
return;
memcpy(&irc_nsaddr_list[irc_nscount], res->ai_addr, res->ai_addrlen);
SET_SS_LEN(&irc_nsaddr_list[irc_nscount], res->ai_addrlen);
irc_nscount++;
freeaddrinfo(res);
}
/*
* add_listener- create a new listener
* port - the port number to listen on
* vhost_ip - if non-null must contain a valid IP address string in
* the format "255.255.255.255"
*/
void
add_listener(int port, const char *vhost_ip, int family, int ssl)
{
struct Listener *listener;
struct rb_sockaddr_storage vaddr;
/*
* if no port in conf line, don't bother
*/
if(port == 0)
return;
memset(&vaddr, 0, sizeof(vaddr));
vaddr.ss_family = family;
if(vhost_ip != NULL)
{
if(family == AF_INET)
{
if(rb_inet_pton(family, vhost_ip, &((struct sockaddr_in *)&vaddr)->sin_addr) <= 0)
return;
}
#ifdef RB_IPV6
else
{
if(rb_inet_pton(family, vhost_ip, &((struct sockaddr_in6 *)&vaddr)->sin6_addr) <= 0)
return;
}
#endif
} else
{
switch(family)
{
case AF_INET:
((struct sockaddr_in *)&vaddr)->sin_addr.s_addr = INADDR_ANY;
break;
#ifdef RB_IPV6
case AF_INET6:
memcpy(&((struct sockaddr_in6 *)&vaddr)->sin6_addr, &in6addr_any, sizeof(struct in6_addr));
break;
default:
return;
#endif
}
}
switch(family)
{
case AF_INET:
SET_SS_LEN(&vaddr, sizeof(struct sockaddr_in));
((struct sockaddr_in *)&vaddr)->sin_port = htons(port);
break;
#ifdef RB_IPV6
case AF_INET6:
SET_SS_LEN(&vaddr, sizeof(struct sockaddr_in6));
((struct sockaddr_in6 *)&vaddr)->sin6_port = htons(port);
break;
#endif
default:
break;
}
if((listener = find_listener(&vaddr)))
{
if(listener->F != NULL)
return;
}
else
{
listener = make_listener(&vaddr);
listener->next = ListenerPollList;
ListenerPollList = listener;
}
listener->F = NULL;
listener->ssl = ssl;
if(inetport(listener))
listener->active = 1;
else
close_listener(listener);
}
/*
* void comm_connect_tcp(int fd, const char *host, u_short port,
* struct sockaddr *clocal, int socklen,
* CNCB *callback, void *data, int aftype, int timeout)
* Input: An fd to connect with, a host and port to connect to,
* a local sockaddr to connect from + length(or NULL to use the
* default), a callback, the data to pass into the callback, the
* address family.
* Output: None.
* Side-effects: A non-blocking connection to the host is started, and
* if necessary, set up for selection. The callback given
* may be called now, or it may be called later.
*/
void
comm_connect_tcp(int fd, const char *host, u_short port,
struct sockaddr *clocal, int socklen, CNCB * callback,
void *data, int aftype, int timeout)
{
void *ipptr = NULL;
fde_t *F;
s_assert(fd >= 0);
F = &fd_table[fd];
F->flags.called_connect = 1;
s_assert(callback);
F->connect.callback = callback;
F->connect.data = data;
memset(&F->connect.hostaddr, 0, sizeof(F->connect.hostaddr));
#ifdef IPV6
if(aftype == AF_INET6)
{
struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)&F->connect.hostaddr;
SET_SS_LEN(F->connect.hostaddr, sizeof(struct sockaddr_in6));
in6->sin6_port = htons(port);
in6->sin6_family = AF_INET6;
ipptr = &in6->sin6_addr;
} else
#endif
{
struct sockaddr_in *in = (struct sockaddr_in *)&F->connect.hostaddr;
SET_SS_LEN(F->connect.hostaddr, sizeof(struct sockaddr_in));
in->sin_port = htons(port);
in->sin_family = AF_INET;
ipptr = &in->sin_addr;
}
/* Note that we're using a passed sockaddr here. This is because
* generally you'll be bind()ing to a sockaddr grabbed from
* getsockname(), so this makes things easier.
* XXX If NULL is passed as local, we should later on bind() to the
* virtual host IP, for completeness.
* -- adrian
*/
if((clocal != NULL) && (bind(F->fd, clocal, socklen) < 0))
{
/* Failure, call the callback with COMM_ERR_BIND */
comm_connect_callback(F->fd, COMM_ERR_BIND);
/* ... and quit */
return;
}
/* Next, if we have been given an IP, get the addr and skip the
* DNS check (and head direct to comm_connect_tryconnect().
*/
if(inetpton(aftype, host, ipptr) <= 0)
{
/* Send the DNS request, for the next level */
F->dns_query = MyMalloc(sizeof(struct DNSQuery));
F->dns_query->ptr = F;
F->dns_query->callback = comm_connect_dns_callback;
adns_gethost(host, aftype, F->dns_query);
}
else
{
/* We have a valid IP, so we just call tryconnect */
/* Make sure we actually set the timeout here .. */
comm_settimeout(F->fd, timeout * 1000, comm_connect_timeout, NULL);
comm_connect_tryconnect(F->fd, NULL);
}
}
