string dump_socket_status() {
string ret = @END
Fd State Mode Local Address Remote Address
-- --------- -------- --------------------- ---------------------
END;
foreach (array item in socket_status()) {
ret += sprintf("%2d %|9s %|8s %-21s %-21s\n", item[0], item[1], item[2], item[3], item[4]);
}
void
f_socket_status (void)
{
array_t *info;
int i;
if (st_num_arg) {
info = socket_status(sp->u.number);
if (!info) {
sp->u.number = 0;
} else {
sp->type = T_ARRAY;
sp->u.arr = info;
}
} else {
info = allocate_empty_array(max_lpc_socks);
for (i = 0; i < max_lpc_socks; i++) {
info->item[i].type = T_ARRAY;
info->item[i].u.arr = socket_status(i);
}
push_refed_array(info);
}
}
uint8_t udp_ready(net_socket_t sockid)
{
return socket_status(sockid) == SOCKET_STATUS_UDP;
}
/*
********************************************************************************
* MAKE DNS QUERY AND PARSE THE REPLY
*
* Description : This function makes DNS query message and parses the reply from DNS server.
* Arguments : name - is a pointer to the domain name.
* Returns : if succeeds : 1, fails : -1
* Note :
********************************************************************************
*/
int DNS::query(char *name)
{
int state;
static uint32_t dns_wait_time = 0;
struct dhdr dhp;
uint8_t ip[4];
uint16_t len, port;
uint8_t dns_server_ip[4];
uint8_t BUFPUB[100];
get_local_dns(dns_server_ip);
len = makequery(0, (uint8_t *)name, BUFPUB, MAX_DNS_BUF_SIZE);
DNS_DBG("ÓòÃû:[%s]\r\n", name);
DNS_DBG("ÓòÃû½âÎöÖÐ...\r\n");
while(1)
{
state = socket_status(s);
if(state == SOCK_CLOSED)
{
DNS_DBG("dns's socket closed!,socket: %d\r\n", s);
DNS_DBG("openning dns's socket... !\r\n");
if(_socket(s, Sn_MR_UDP, port, 0) == 1)
DNS_DBG("open dns's socket seccusse!\r\n");
}
if(state == SOCK_UDP)
{
DNS_DBG("sending query cmd...\r\n");
if(_sendto(s, BUFPUB, len, dns_server_ip, IPPORT_DOMAIN) > 0)
DNS_DBG("send dns cmd ok!\r\n");
if ((len = recv_available(s)) > 0)
{
if (len > MAX_DNS_BUF_SIZE)
{
len = MAX_DNS_BUF_SIZE;
}
len = _recvfrom(s, BUFPUB, len, ip, &port);
DNS_DBG("receiv dns's date ok!datelen:%d\r\n", len);
if(parseMSG(&dhp, BUFPUB))
{
_close(s);
DNS_DBG("query is ok!\r\n");
return 1;
}
else
{
DNS_DBG("dns's date is bad!\r\n");
return -1;
}
}
else
{
DNS_DBG("wait dns's date...!\r\n");
delay_ms(1000);
dns_wait_time++;
}
if(dns_wait_time >= 3)
{
_close(s);
return -2;
}
}
};
}
static mixed read_callback(int fd, mixed data){
debug("quitting. fd: "+fd+", "+identify(socket_status(fd)));
debug(socket_close(fd));
return 1;
}