static void pop3c_client_connect_ip(struct pop3c_client *client)
{
struct stat st;
client->fd = net_connect_ip(&client->ip, client->set.port, NULL);
if (client->fd == -1) {
pop3c_client_disconnect(client);
return;
}
client->input = client->raw_input =
i_stream_create_fd(client->fd, POP3C_MAX_INBUF_SIZE, FALSE);
client->output = client->raw_output =
o_stream_create_fd(client->fd, (size_t)-1, FALSE);
o_stream_set_no_error_handling(client->output, TRUE);
if (*client->set.rawlog_dir != '\0' &&
client->set.ssl_mode != POP3C_CLIENT_SSL_MODE_IMMEDIATE &&
stat(client->set.rawlog_dir, &st) == 0) {
iostream_rawlog_create(client->set.rawlog_dir,
&client->input, &client->output);
}
client->io = io_add(client->fd, IO_WRITE,
pop3c_client_connected, client);
client->to = timeout_add(POP3C_CONNECT_TIMEOUT_MSECS,
pop3c_client_timeout, client);
if (client->set.debug) {
i_debug("pop3c(%s): Connecting to %s:%u", client->set.host,
net_ip2addr(&client->ip), client->set.port);
}
}
static int pop3c_client_ssl_init(struct pop3c_client *client)
{
struct ssl_iostream_settings ssl_set;
struct stat st;
const char *error;
if (client->ssl_ctx == NULL) {
i_error("pop3c(%s): No SSL context", client->set.host);
return -1;
}
memset(&ssl_set, 0, sizeof(ssl_set));
if (client->set.ssl_verify) {
ssl_set.verbose_invalid_cert = TRUE;
ssl_set.verify_remote_cert = TRUE;
ssl_set.require_valid_cert = TRUE;
}
if (client->set.debug)
i_debug("pop3c(%s): Starting SSL handshake", client->set.host);
if (client->raw_input != client->input) {
/* recreate rawlog after STARTTLS */
i_stream_ref(client->raw_input);
o_stream_ref(client->raw_output);
i_stream_destroy(&client->input);
o_stream_destroy(&client->output);
client->input = client->raw_input;
client->output = client->raw_output;
}
if (io_stream_create_ssl_client(client->ssl_ctx, client->set.host,
&ssl_set, &client->input, &client->output,
&client->ssl_iostream, &error) < 0) {
i_error("pop3c(%s): Couldn't initialize SSL client: %s",
client->set.host, error);
return -1;
}
ssl_iostream_set_handshake_callback(client->ssl_iostream,
pop3c_client_ssl_handshaked,
client);
if (ssl_iostream_handshake(client->ssl_iostream) < 0) {
i_error("pop3c(%s): SSL handshake failed: %s", client->set.host,
ssl_iostream_get_last_error(client->ssl_iostream));
return -1;
}
if (*client->set.rawlog_dir != '\0' &&
stat(client->set.rawlog_dir, &st) == 0) {
iostream_rawlog_create(client->set.rawlog_dir,
&client->input, &client->output);
}
return 0;
}
static void client_open_streams(struct client *client)
{
client->input =
i_stream_create_fd(client->fd, LOGIN_MAX_INBUF_SIZE, FALSE);
client->output =
o_stream_create_fd(client->fd, LOGIN_MAX_OUTBUF_SIZE, FALSE);
o_stream_set_no_error_handling(client->output, TRUE);
if (login_rawlog_dir != NULL) {
if (iostream_rawlog_create(login_rawlog_dir, &client->input,
&client->output) < 0)
login_rawlog_dir = NULL;
}
}