int
vsf_privop_get_ftp_port_sock(struct vsf_session* p_sess,
unsigned short remote_port,
int use_port_sockaddr)
{
static struct vsf_sysutil_sockaddr* p_sockaddr;
const struct vsf_sysutil_sockaddr* p_connect_to;
int retval;
int i;
int s = vsf_sysutil_get_ipsock(p_sess->p_local_addr);
int port = 0;
if (vsf_sysutil_is_port_reserved(remote_port))
{
die("Illegal port request");
}
if (tunable_connect_from_port_20)
{
port = tunable_ftp_data_port;
}
vsf_sysutil_activate_reuseaddr(s);
/* A report of failure here on Solaris, presumably buggy address reuse
* support? We'll retry.
*/
for (i = 0; i < 2; ++i)
{
double sleep_for;
vsf_sysutil_sockaddr_clone(&p_sockaddr, p_sess->p_local_addr);
vsf_sysutil_sockaddr_set_port(p_sockaddr, port);
retval = vsf_sysutil_bind(s, p_sockaddr);
if (retval == 0)
{
break;
}
if (vsf_sysutil_get_error() != kVSFSysUtilErrADDRINUSE || i == 1)
{
die("vsf_sysutil_bind");
}
sleep_for = vsf_sysutil_get_random_byte();
sleep_for /= 256.0;
sleep_for += 1.0;
vsf_sysutil_sleep(sleep_for);
}
if (use_port_sockaddr)
{
p_connect_to = p_sess->p_port_sockaddr;
}
else
{
vsf_sysutil_sockaddr_set_port(p_sess->p_remote_addr, remote_port);
p_connect_to = p_sess->p_remote_addr;
}
retval = vsf_sysutil_connect_timeout(s, p_connect_to,
tunable_connect_timeout);
if (vsf_sysutil_retval_is_error(retval))
{
vsf_sysutil_close(s);
s = -1;
}
return s;
}
int
vsf_ftpdataio_get_port_fd(struct vsf_session* p_sess)
{
int retval;
int remote_fd;
if (tunable_connect_from_port_20)
{
if (tunable_one_process_model)
{
remote_fd = vsf_one_process_get_priv_data_sock(p_sess);
}
else
{
remote_fd = vsf_two_process_get_priv_data_sock(p_sess);
}
}
else
{
remote_fd = vsf_sysutil_get_ipsock(p_sess->p_port_sockaddr);
if (vsf_sysutil_sockaddr_same_family(p_sess->p_port_sockaddr,
p_sess->p_local_addr))
{
static struct vsf_sysutil_sockaddr* s_p_addr;
vsf_sysutil_sockaddr_clone(&s_p_addr, p_sess->p_local_addr);
retval = vsf_sysutil_bind(remote_fd, s_p_addr);
if (retval != 0)
{
die("vsf_sysutil_bind");
}
}
}
retval = vsf_sysutil_connect_timeout(remote_fd, p_sess->p_port_sockaddr,
tunable_connect_timeout);
if (vsf_sysutil_retval_is_error(retval))
{
vsf_cmdio_write(p_sess, FTP_BADSENDCONN,
"Failed to establish connection.");
vsf_sysutil_close(remote_fd);
return -1;
}
init_data_sock_params(p_sess, remote_fd);
return remote_fd;
}