static void dcc_chat_passive(CHAT_DCC_REC *dcc)
{
IPADDR own_ip;
int port;
GIOChannel *handle;
char host[MAX_IP_LEN];
g_return_if_fail(IS_DCC_CHAT(dcc));
if (dcc->addrstr[0] == '\0' ||
dcc->starttime != 0 || dcc->handle != NULL) {
/* already sent a chat request / already chatting */
return;
}
handle = dcc_listen(net_sendbuffer_handle(dcc->server->handle),
&own_ip, &port);
if (handle == NULL)
cmd_return_error(CMDERR_ERRNO);
dcc->handle = handle;
dcc->tagconn = g_input_add(dcc->handle, G_INPUT_READ,
(GInputFunction) dcc_chat_listen, dcc);
/* Let's send the reply to the other client! */
dcc_ip2str(&own_ip, host);
irc_send_cmdv(dcc->server, "PRIVMSG %s :\001DCC CHAT CHAT %s %d %d\001",
dcc->nick, host, port, dcc->pasv_id);
}
int dcc_start_send(const char *nick, const char *fname, int timeout)
{
dcc_listen_t *listen;
dcc_send_t *send;
int idx, size, fd;
char *quote, *slash;
fd = open(fname, O_RDONLY);
if (!fd)
return(-2); /* File could not be opened. */
size = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
listen = dcc_listen(timeout);
if (!listen) {
close(fd);
return(-1);
}
/* Create an empty sockbuf that will eventually be used for the
* dcc chat (when they connect to us). */
idx = sockbuf_new();
send = calloc(1, sizeof(*send));
sockbuf_attach_filter(idx, &dcc_send_filter, send);
listen->client = idx;
send->next = dcc_send_head;
dcc_send_head = send;
send->serv = listen->serv;
send->port = listen->port;
send->fd = fd;
send->idx = idx;
send->size = size;
send->bytes_sent = 0;
send->bytes_left = size;
timer_get_now_sec(&send->request_time);
send->fname = strdup(fname);
send->nick = strdup(nick);
slash = strrchr(fname, '/');
if (slash)
fname = slash+1;
if (strchr(fname, ' '))
quote = "\"";
else
quote = "";
printserv(SERVER_NORMAL, "PRIVMSG %s :%cDCC SEND %s%s%s %u %d %d%c", nick, 1, quote, fname, quote,
current_server.mylongip, listen->port, size, 1);
return(idx);
}
/* Starts a chat with the specified nick.
* If timeout is 0, the default timeout is used.
* If timeout is -1, there is no timeout.
* We don't make sure the nick is valid, so if it's not, you won't know until
* the chat times out. */
int dcc_start_chat(const char *nick, int timeout)
{
dcc_listen_t *listen;
int idx;
/* Create a listening idx to accept the chat connection. */
listen = dcc_listen(timeout);
if (!listen) return(-1);
/* Create an empty sockbuf that will eventually be used for the
* dcc chat (when they connect to us). */
idx = sockbuf_new();
sockbuf_attach_filter(idx, &dcc_chat_filter, (void *)listen->serv);
listen->client = idx;
printserv(SERVER_NORMAL, "PRIVMSG %s :%cDCC CHAT chat %u %d%c", nick, 1, current_server.mylongip, listen->port, 1);
return(idx);
}
void dcc_get_passive(GET_DCC_REC *dcc)
{
GIOChannel *handle;
IPADDR own_ip;
int port;
char host[MAX_IP_LEN];
handle = dcc_listen(net_sendbuffer_handle(dcc->server->handle),
&own_ip, &port);
if (handle == NULL)
cmd_return_error(CMDERR_ERRNO);
dcc->handle = handle;
dcc->tagconn = g_input_add(dcc->handle, G_INPUT_READ,
(GInputFunction) dcc_get_listen, dcc);
/* Let's send the reply to the other client! */
dcc_ip2str(&own_ip, host);
irc_send_cmdv(dcc->server,
"PRIVMSG %s :\001DCC SEND %s %s %d %"PRIuUOFF_T" %d\001",
dcc->nick, dcc->arg, host, port, dcc->size, dcc->pasv_id);
}
/* SYNTAX: DCC CHAT [-passive] [<nick>] */
static void cmd_dcc_chat(const char *data, IRC_SERVER_REC *server)
{
void *free_arg;
CHAT_DCC_REC *dcc;
IPADDR own_ip;
GIOChannel *handle;
GHashTable *optlist;
int p_id;
char *nick, host[MAX_IP_LEN];
int port;
g_return_if_fail(data != NULL);
if (!cmd_get_params(data, &free_arg, 1 | PARAM_FLAG_OPTIONS,
"dcc chat", &optlist, &nick))
return;
if (*nick == '\0') {
dcc = DCC_CHAT(dcc_find_request_latest(DCC_CHAT_TYPE));
if (dcc != NULL) {
if (!dcc_is_passive(dcc))
dcc_chat_connect(dcc);
else
dcc_chat_passive(dcc);
}
cmd_params_free(free_arg);
return;
}
dcc = dcc_chat_find_id(nick);
if (dcc != NULL && dcc_is_waiting_user(dcc)) {
if (!dcc_is_passive(dcc)) {
/* found from dcc chat requests,
we're the connecting side */
dcc_chat_connect(dcc);
} else {
/* We are accepting a passive DCC CHAT. */
dcc_chat_passive(dcc);
}
cmd_params_free(free_arg);
return;
}
if (dcc != NULL && dcc_is_listening(dcc) &&
dcc->server == server) {
/* sending request again even while old request is
still waiting, remove it. */
dcc_destroy(DCC(dcc));
}
if (!IS_IRC_SERVER(server) || !server->connected)
cmd_param_error(CMDERR_NOT_CONNECTED);
dcc = dcc_chat_create(server, NULL, nick, "chat");
if (dcc == NULL) {
cmd_params_free(free_arg);
g_warn_if_reached();
return;
}
if (g_hash_table_lookup(optlist, "passive") == NULL) {
/* Standard DCC CHAT... let's listen for incoming connections */
handle = dcc_listen(net_sendbuffer_handle(server->handle),
&own_ip, &port);
if (handle == NULL)
cmd_param_error(CMDERR_ERRNO);
dcc->handle = handle;
dcc->tagconn =
g_input_add(dcc->handle, G_INPUT_READ,
(GInputFunction) dcc_chat_listen, dcc);
/* send the chat request */
signal_emit("dcc request send", 1, dcc);
dcc_ip2str(&own_ip, host);
irc_send_cmdv(server, "PRIVMSG %s :\001DCC CHAT CHAT %s %d\001",
nick, host, port);
} else {
/* Passive protocol... we want the other side to listen */
/* send the chat request */
dcc->port = 0;
signal_emit("dcc request send", 1, dcc);
/* generate a random id */
p_id = rand() % 64;
dcc->pasv_id = p_id;
/* 16843009 is the long format of 1.1.1.1, we use a fake IP
since the other side shouldn't care of it: they will send
the address for us to connect to in the reply */
irc_send_cmdv(server,
"PRIVMSG %s :\001DCC CHAT CHAT 16843009 0 %d\001",
nick, p_id);
}
cmd_params_free(free_arg);
}
static int dcc_send_one_file(int queue, const char *target, const char *fname,
IRC_SERVER_REC *server, CHAT_DCC_REC *chat)
{
struct stat st;
char *str;
char host[MAX_IP_LEN];
int hfile, port;
SEND_DCC_REC *dcc;
IPADDR own_ip;
GIOChannel *handle;
if (dcc_find_request(DCC_SEND_TYPE, target, fname)) {
signal_emit("dcc error send exists", 2, target, fname);
return FALSE;
}
str = dcc_send_get_file(fname);
hfile = open(str, O_RDONLY);
g_free(str);
if (hfile == -1) {
signal_emit("dcc error file open", 3, target, fname,
GINT_TO_POINTER(errno));
return FALSE;
}
if (fstat(hfile, &st) < 0) {
g_warning("fstat() failed: %s", strerror(errno));
close(hfile);
return FALSE;
}
/* start listening */
handle = dcc_listen(chat != NULL ? chat->handle :
net_sendbuffer_handle(server->handle),
&own_ip, &port);
if (handle == NULL) {
close(hfile);
g_warning("dcc_listen() failed: %s", strerror(errno));
return FALSE;
}
fname = g_basename(fname);
/* Replace all the spaces with underscore so that lesser
intellgent clients can communicate.. */
if (!settings_get_bool("dcc_send_replace_space_with_underscore"))
str = NULL;
else {
str = g_strdup(fname);
g_strdelimit(str, " ", '_');
fname = str;
}
dcc = dcc_send_create(server, chat, target, fname);
g_free(str);
dcc->handle = handle;
dcc->port = port;
dcc->size = st.st_size;
dcc->fhandle = hfile;
dcc->queue = queue;
dcc->file_quoted = strchr(fname, ' ') != NULL;
dcc->tagconn = g_input_add(handle, G_INPUT_READ,
(GInputFunction) dcc_send_connected, dcc);
/* send DCC request */
signal_emit("dcc request send", 1, dcc);
dcc_ip2str(&own_ip, host);
str = g_strdup_printf(dcc->file_quoted ?
"DCC SEND \"%s\" %s %d %"PRIuUOFF_T :
"DCC SEND %s %s %d %"PRIuUOFF_T,
dcc->arg, host, port, dcc->size);
dcc_ctcp_message(server, target, chat, FALSE, str);
g_free(str);
return TRUE;
}