static void pop3c_client_disconnect(struct pop3c_client *client)
{
client->state = POP3C_CLIENT_STATE_DISCONNECTED;
client->async_commands = 0;
if (client->running)
io_loop_stop(current_ioloop);
if (client->dns_lookup != NULL)
dns_lookup_abort(&client->dns_lookup);
if (client->to != NULL)
timeout_remove(&client->to);
if (client->io != NULL)
io_remove(&client->io);
if (client->input != NULL)
i_stream_destroy(&client->input);
if (client->output != NULL)
o_stream_destroy(&client->output);
if (client->ssl_iostream != NULL)
ssl_iostream_unref(&client->ssl_iostream);
if (client->fd != -1) {
if (close(client->fd) < 0)
i_error("close(pop3c) failed: %m");
client->fd = -1;
}
client_login_callback(client, POP3C_COMMAND_STATE_DISCONNECTED,
"Disconnected");
}
static void i_stream_ssl_destroy(struct iostream_private *stream)
{
struct ssl_istream *sstream = (struct ssl_istream *)stream;
i_free(sstream->istream.w_buffer);
ssl_iostream_unref(&sstream->ssl_io);
}
static void openssl_iostream_destroy(struct ssl_iostream *ssl_io)
{
(void)SSL_shutdown(ssl_io->ssl);
(void)openssl_iostream_more(ssl_io);
(void)o_stream_flush(ssl_io->plain_output);
ssl_iostream_unref(&ssl_io);
}
static void o_stream_ssl_destroy(struct iostream_private *stream)
{
struct ssl_ostream *sstream = (struct ssl_ostream *)stream;
sstream->ssl_io->ssl_output = NULL;
ssl_iostream_unref(&sstream->ssl_io);
if (sstream->buffer != NULL)
buffer_free(&sstream->buffer);
}
static void openssl_iostream_destroy(struct ssl_iostream *ssl_io)
{
(void)SSL_shutdown(ssl_io->ssl);
(void)openssl_iostream_more(ssl_io);
(void)o_stream_flush(ssl_io->plain_output);
/* close the plain i/o streams, because their fd may be closed soon,
but we may still keep this ssl-iostream referenced until later. */
i_stream_close(ssl_io->plain_input);
o_stream_close(ssl_io->plain_output);
ssl_iostream_unref(&ssl_io);
}
void server_connection_destroy(struct server_connection **_conn)
{
struct server_connection *conn = *_conn;
struct server_connection *const *conns;
const char *error;
unsigned int i, count;
*_conn = NULL;
conns = array_get(&conn->server->connections, &count);
for (i = 0; i < count; i++) {
if (conns[i] == conn) {
array_delete(&conn->server->connections, i, 1);
break;
}
}
if (conn->callback != NULL) {
error = conn->ssl_iostream == NULL ? NULL :
ssl_iostream_get_last_error(conn->ssl_iostream);
if (error == NULL) {
error = conn->input->stream_errno == 0 ? "EOF" :
strerror(conn->input->stream_errno);
}
server_connection_callback(conn, SERVER_EXIT_CODE_DISCONNECTED,
error);
}
if (printing_conn == conn)
print_connection_released();
if (conn->input != NULL)
i_stream_destroy(&conn->input);
if (conn->output != NULL)
o_stream_destroy(&conn->output);
if (conn->cmd_input != NULL)
i_stream_destroy(&conn->cmd_input);
/* close cmd_output after its parent, so the "." isn't sent */
if (conn->cmd_output != NULL)
o_stream_destroy(&conn->cmd_output);
if (conn->ssl_iostream != NULL)
ssl_iostream_unref(&conn->ssl_iostream);
if (conn->io != NULL)
io_remove(&conn->io);
if (conn->fd != -1) {
if (close(conn->fd) < 0)
i_error("close(server) failed: %m");
}
pool_unref(&conn->pool);
}
static void openssl_iostream_destroy(struct ssl_iostream *ssl_io)
{
if (SSL_shutdown(ssl_io->ssl) != 1) {
/* if bidirectional shutdown fails we need to clear
the error queue */
openssl_iostream_clear_errors();
}
(void)openssl_iostream_more(ssl_io);
(void)o_stream_flush(ssl_io->plain_output);
/* close the plain i/o streams, because their fd may be closed soon,
but we may still keep this ssl-iostream referenced until later. */
i_stream_close(ssl_io->plain_input);
o_stream_close(ssl_io->plain_output);
ssl_iostream_unref(&ssl_io);
}