/* Open the connection to the server. */
int
mu_nntp_connect (mu_nntp_t nntp)
{
int status;
/* Sanity checks. */
if (nntp == NULL)
return EINVAL;
/* A networking stack. */
if (nntp->carrier == NULL)
return EINVAL;
/* Enter the nntp state machine, and boogy */
switch (nntp->state)
{
default:
/* FALLTHROUGH */
/* If nntp was in an error state going through here should clear it. */
case MU_NNTP_NO_STATE:
status = mu_nntp_disconnect (nntp);
MU_NNTP_CHECK_EAGAIN (nntp, status);
nntp->state = MU_NNTP_CONNECT;
case MU_NNTP_CONNECT:
/* Establish the connection. */
status = mu_stream_open (nntp->carrier);
MU_NNTP_CHECK_EAGAIN (nntp, status);
nntp->acknowledge = 0;
nntp->state = MU_NNTP_GREETINGS;
case MU_NNTP_GREETINGS:
/* Get the greetings. */
{
size_t len = 0;
int code;
status = mu_nntp_response (nntp, NULL, 0, &len);
MU_NNTP_CHECK_EAGAIN (nntp, status);
mu_nntp_debug_ack (nntp);
/* 200 Service available, posting allowed */
/* 201 Servie available, posting prohibited */
code = mu_nntp_response_code(nntp);
if (code != MU_NNTP_RESP_CODE_POSTING_ALLOWED && code != MU_NNTP_RESP_CODE_POSTING_PROHIBITED)
{
mu_stream_close (nntp->carrier);
nntp->state = MU_NNTP_NO_STATE;
return EACCES;
}
nntp->state = MU_NNTP_NO_STATE;
}
} /* End AUTHORISATION state. */
return status;
}
int
mu_nntp_set_carrier (mu_nntp_t nntp, mu_stream_t carrier)
{
/* Sanity checks. */
if (nntp == NULL)
return EINVAL;
if (nntp->carrier)
{
/* Close any old carrier. */
mu_nntp_disconnect (nntp);
mu_stream_destroy (&nntp->carrier);
}
nntp->carrier = carrier;
return 0;
}
