int32_t tcp_http_mt(uint8_t sn, uint8_t* buf, uint16_t port)
{
int32_t ret;
uint32_t size = 0;
char *url,*p;

switch(getSn_SR(sn))
{
case SOCK_ESTABLISHED :

if(getSn_IR(sn) & Sn_IR_CON)
{
setSn_IR(sn,Sn_IR_CON);
}

if((size = getSn_RX_RSR(sn)) > 0)
{
if(size > DATA_BUF_SIZE)
{
size = DATA_BUF_SIZE;
}

ret = recv(sn,buf,size);

HTTP_reset(sn);

if(ret <= 0)
{
return ret;
}

url =(char*) buf + 4;

if((http_state[sn]==HTTP_IDLE)&&(memcmp(buf, "GET ", 4)==0)&&((p = strchr(url, ' ')))) // extract URL from request header
{
*(p++) = 0; //making zeroed url string

sentsize[sn]=0;

if(strcmp(url,"/")==0)
{
strcpy((char*)buf,http_200);
strcat((char*)buf, http_server);
strcat((char*)buf,"Content-Type: text/html; charset=windows-1251\r\n");
strcat((char*)buf,"Cache-Control: no-cache\r\n");
strcat((char*)buf,http_connection_close);
strcat((char*)buf, http_header_end);
strcat((char*)buf,site);
size=strlen((char*)buf);
http_state[sn]=HTTP_SENDING;
}

if(strcmp(url,"/test.png")==0)
{
strcpy((char*)buf,http_200);
strcat((char*)buf, http_server);
strcat((char*)buf,"Content-Type: image/png\r\n");
//
strcat((char*)buf,"Content-Lenght: 205\r\n");
strcat((char*)buf,"Connection: keep-alive\r\n");
strcat((char*)buf,"Keep-Alive: timeout=20\r\n");
strcat((char*)buf,"Accept-Ranges: bytes\r\n");
strcat((char*)buf,"Cache-Control: no-cache\r\n");
strcat((char*)buf, http_header_end);
strcat((char*)buf,Img);
size=strlen((char*)buf);
http_state[sn]=HTTP_SENDING;
}
}

/*
Отправляем данные пока размер отправленных данных sentsize[sn] не сравняется с размером данных size
которые мы подготовили для отправки

... вроде бы...
*/
if(http_state[sn]==HTTP_SENDING)
{
while (sentsize[sn] < size)
{
//DATA_BUF_SIZE

ret = send(sn,buf,size);
if(ret < 0)
{
close(sn);
return ret;
}
sentsize[sn] += ret; // Don't care SOCKERR_BUSY, because it is zero.
}
HTTP_reset(sn);
disconnect(sn);
}
}

break;

case SOCK_CLOSE_WAIT :

HTTP_reset(sn);

if((ret=disconnect(sn)) != SOCK_OK)
return ret;

break;
case SOCK_INIT :

HTTP_reset(sn);

if( (ret = listen(sn)) != SOCK_OK) return ret;
break;
case SOCK_CLOSED:

HTTP_reset(sn);

if((ret=socket(sn,Sn_MR_TCP,port,0x00)) != sn)
return ret;

break;

default:
HTTP_reset(sn);
break;
}
return 1;
}