/* complete the connection to the IRC server */
static unsigned int connectirc2(res_addrinfo_t *remote)
{
int retval;
int family;
if (remote->ai_reset)
gnetwork->serv_resolv.next = 0;
family = remote->ai_addr.sa_family;
gnetwork->ircserver = socket(family, remote->ai_socktype, remote->ai_protocol);
if (gnetwork->ircserver < 0) {
outerror(OUTERROR_TYPE_WARN_LOUD, "Socket Error: %s", strerror(errno));
return 1;
}
if (gdata.debug > 0) {
char *msg;
msg = mymalloc(maxtextlength);
my_getnameinfo(msg, maxtextlength -1, &(remote->ai_addr));
ioutput(OUT_S, COLOR_YELLOW, "Connecting to %s", msg);
mydelete(msg);
}
if (bind_irc_vhost(family, gnetwork->ircserver) != 0) {
outerror(OUTERROR_TYPE_WARN_LOUD, "Couldn't Bind To Virtual Host");
event_close(gnetwork->ircserver);
return 1;
}
if (set_socket_nonblocking(gnetwork->ircserver, 1) < 0 )
outerror(OUTERROR_TYPE_WARN, "Couldn't Set Non-Blocking");
alarm(CTIMEOUT);
retval = connect(gnetwork->ircserver, &(remote->ai_addr), remote->ai_addrlen);
if ( (retval < 0) && !((errno == EINPROGRESS) || (errno == EAGAIN)) ) {
outerror(OUTERROR_TYPE_WARN_LOUD, "Connection to Server Failed: %s", strerror(errno));
alarm(0);
event_close(gnetwork->ircserver);
return 1;
}
alarm(0);
if (gdata.debug > 0) {
ioutput(OUT_S, COLOR_YELLOW, "ircserver socket = %d", gnetwork->ircserver);
}
gnetwork->lastservercontact=gdata.curtime;
/* good */
gnetwork->serverstatus = SERVERSTATUS_TRYING;
return 0;
}
static void t_passive(transfer * const tr, ir_uint16 remoteport)
{
char *msg;
ir_uint32 netval;
SIGNEDSOCK int addrlen;
int retval;
updatecontext();
bzero ((char *) &(tr->con.remote), sizeof(tr->con.remote));
tr->con.clientsocket = socket(tr->con.family, SOCK_STREAM, 0);
if (tr->con.clientsocket < 0) {
t_closeconn(tr, "Socket Error", errno);
return;
}
if (tr->con.family == AF_INET ) {
addrlen = sizeof(struct sockaddr_in);
tr->con.remote.sin.sin_family = AF_INET;
tr->con.remote.sin.sin_port = htons(remoteport);
netval = atoul(tr->con.remoteaddr);
tr->con.remote.sin.sin_addr.s_addr = htonl(netval);
} else {
addrlen = sizeof(struct sockaddr_in6);
tr->con.remote.sin6.sin6_family = AF_INET6;
tr->con.remote.sin6.sin6_port = htons(remoteport);
retval = inet_pton(AF_INET6, tr->con.remoteaddr, &(tr->con.remote.sin6.sin6_addr));
if (retval < 0)
outerror(OUTERROR_TYPE_WARN_LOUD, "Invalid IP: %s", tr->con.remoteaddr);
}
if (t_check_ip_access(tr))
return;
if (bind_irc_vhost(tr->con.family, tr->con.clientsocket) != 0) {
t_closeconn(tr, "Couldn't Bind Virtual Host, Sorry", errno);
return;
}
if (set_socket_nonblocking(tr->con.clientsocket, 1) < 0 ) {
outerror(OUTERROR_TYPE_WARN, "Couldn't Set Non-Blocking");
}
if (gdata.debug > 0) {
msg = mymalloc(maxtextlength);
my_getnameinfo(msg, maxtextlength -1, &(tr->con.remote.sa));
ioutput(OUT_S|OUT_L|OUT_D, COLOR_MAGENTA,
"DCC SEND passive sent to %s on %s, connecting to %s",
tr->nick, gnetwork->name, msg);
mydelete(msg);
}
alarm(CTIMEOUT);
retval = connect(tr->con.clientsocket, &(tr->con.remote.sa), addrlen);
if ( (retval < 0) && !((errno == EINPROGRESS) || (errno == EAGAIN)) ) {
t_closeconn(tr, "Couldn't Connect", errno);
alarm(0);
return;
}
alarm(0);
tr->tr_status = TRANSFER_STATUS_CONNECTING;
}
int setupdccchat(const char *nick,
const char *hostmask,
const char *line)
{
char *ip, *port;
SIGNEDSOCK int addrlen;
int retval;
dccchat_t *chat;
char *msg;
updatecontext();
ip = getpart(line,7);
port = getpart(line,8);
if ( !ip || !port )
{
mydelete(ip);
mydelete(port);
return 1;
}
/* support passive dcc */
if (strcmp(port, "0") == 0)
{
char *token;
mydelete(ip);
mydelete(port);
if (gdata.passive_dcc_chat)
{
token = getpart(line, 9);
setupdccchatout(nick, hostmask, token);
mydelete(token);
}
else
{
notice(nick, "DCC passive Chat denied, use \"/MSG %s ADMIN password CHATME\" instead.", get_user_nick());
ioutput(OUT_S|OUT_L|OUT_D, COLOR_MAGENTA,
"DCC CHAT attempt denied from %s (%s on %s)",
nick, hostmask, gnetwork->name);
}
return 1;
}
chat = irlist_add(&gdata.dccchats, sizeof(dccchat_t));
chat->name = gnetwork->name;
bzero((char *) &(chat->con.remote), sizeof(chat->con.remote));
chat->con.family = (strchr(ip, ':')) ? AF_INET6 : AF_INET;
chat->con.clientsocket = socket(chat->con.family, SOCK_STREAM, 0);
if (chat->con.clientsocket < 0)
{
outerror(OUTERROR_TYPE_WARN_LOUD,"Socket Error: %s", strerror(errno));
chat->con.clientsocket = FD_UNUSED;
mydelete(ip);
mydelete(port);
return 1;
}
port[strlen(port)-1] = '\0';
if (chat->con.family == AF_INET)
{
addrlen = sizeof(struct sockaddr_in);
chat->con.remote.sin.sin_family = AF_INET;
chat->con.remote.sin.sin_port = htons(atoi(port));
chat->con.remote.sin.sin_addr.s_addr = htonl(atoul(ip));
}
else
{
addrlen = sizeof(struct sockaddr_in6);
chat->con.remote.sin6.sin6_family = AF_INET6;
chat->con.remote.sin6.sin6_port = htons(atoi(port));
retval = inet_pton(AF_INET6, ip, &(chat->con.remote.sin6.sin6_addr));
if (retval != 0)
outerror(OUTERROR_TYPE_WARN_LOUD, "Invalid IP: %s", ip);
}
mydelete(port);
mydelete(ip);
if (is_in_badip(&(chat->con.remote))) {
shutdowndccchat(chat, 0);
return 1;
}
if (bind_irc_vhost(chat->con.family, chat->con.clientsocket) != 0)
{
outerror(OUTERROR_TYPE_WARN_LOUD, "Couldn't Bind To Virtual Host: %s", strerror(errno));
chat->con.clientsocket = FD_UNUSED;
return 1;
}
if (set_socket_nonblocking(chat->con.clientsocket, 1) < 0 )
{
outerror(OUTERROR_TYPE_WARN,"Couldn't Set Non-Blocking");
}
alarm(CTIMEOUT);
retval = connect(chat->con.clientsocket, &(chat->con.remote.sa), addrlen);
if ((retval < 0) && !((errno == EINPROGRESS) || (errno == EAGAIN)))
{
outerror(OUTERROR_TYPE_WARN_LOUD,"Connection to DCC Chat Failed: %s", strerror(errno));
chat->con.clientsocket = FD_UNUSED;
return 1;
}
alarm(0);
addrlen = sizeof(chat->con.local);
if (getsockname(chat->con.clientsocket, &(chat->con.local.sa), &addrlen) < 0)
{
outerror(OUTERROR_TYPE_WARN_LOUD,"Couldn't get sock name: %s", strerror(errno));
chat->con.clientsocket = FD_UNUSED;
return 1;
}
if (gdata.debug > 0)
{
ioutput(OUT_S, COLOR_YELLOW, "dccchat socket = %d", chat->con.clientsocket);
}
gdata.num_dccchats++;
chat->status = DCCCHAT_CONNECTING;
chat->nick = mystrdup(nick);
chat->hostmask = mystrdup(hostmask);
chat->con.localport = 0;
chat->con.connecttime = gdata.curtime;
chat->con.lastcontact = gdata.curtime;
chat->net = gnetwork->net;
msg = mymalloc(maxtextlength);
my_getnameinfo(msg, maxtextlength -1, &(chat->con.local.sa));
chat->con.localaddr = mystrdup(msg);
my_getnameinfo(msg, maxtextlength -1, &(chat->con.remote.sa));
chat->con.remoteaddr = mystrdup(msg);
mydelete(msg);
ioutput(OUT_S|OUT_L|OUT_D, COLOR_MAGENTA,
"DCC CHAT received from %s on %s, attempting connection to %s",
nick, chat->name, chat->con.remoteaddr);
return 0;
}