/**
* proto_conn_drop(conn_cookie):
* Drop connection and frees memory associated with ${conn_cookie}. Return
* success or failure.
*/
int
proto_conn_drop(void * conn_cookie)
{
struct conn_state * C = conn_cookie;
int rc;
/* Close the incoming connection. */
close(C->s);
/* Close the outgoing connection if it is open. */
if (C->t != -1)
close(C->t);
/* Stop connecting if a connection is in progress. */
if (C->connect_cookie != NULL)
network_connect_cancel(C->connect_cookie);
/* Free the target addresses if we haven't already done so. */
sock_addr_freelist(C->sas);
/* Stop handshaking if a handshake is in progress. */
if (C->handshake_cookie != NULL)
proto_handshake_cancel(C->handshake_cookie);
/* Kill timeouts if they are pending. */
if (C->connect_timeout_cookie != NULL)
events_timer_cancel(C->connect_timeout_cookie);
if (C->handshake_timeout_cookie != NULL)
events_timer_cancel(C->handshake_timeout_cookie);
/* Free protocol keys. */
proto_crypt_free(C->k_f);
proto_crypt_free(C->k_r);
/* Shut down pipes. */
if (C->pipe_f != NULL)
proto_pipe_cancel(C->pipe_f);
if (C->pipe_r != NULL)
proto_pipe_cancel(C->pipe_r);
/* Notify the upstream that we've dropped a connection. */
rc = (C->callback_dead)(C->cookie);
/* Free the connection cookie. */
free(C);
/* Return success/fail status. */
return (rc);
}
/* Drop a connection. */
static int
dropconn(struct conn_state * C)
{
int rc = 0;
/* Close the incoming connection. */
C->A->nconn -= 1;
close(C->s);
/* Close the outgoing connection if it is open. */
if (C->t != -1)
close(C->t);
/* Stop connecting if a connection is in progress. */
if (C->connect_cookie != NULL)
network_connect_cancel(C->connect_cookie);
/* Stop handshaking if a handshake is in progress. */
if (C->handshake_cookie != NULL)
proto_handshake_cancel(C->handshake_cookie);
/* Kill timeouts if they are pending. */
if (C->connect_timeout_cookie != NULL)
events_timer_cancel(C->connect_timeout_cookie);
if (C->handshake_timeout_cookie != NULL)
events_timer_cancel(C->handshake_timeout_cookie);
/* Free protocol keys. */
pcrypt_free(C->k_f);
pcrypt_free(C->k_r);
/* Shut down pipes. */
if (C->pipe_f != NULL)
proto_pipe_cancel(C->pipe_f);
if (C->pipe_r != NULL)
proto_pipe_cancel(C->pipe_r);
/* Accept more connections if we need to. */
if (doaccept(C->A))
rc = -1;
/* Free the connection cookie. */
free(C);
/* Return success/fail status. */
return (rc);
}
