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 server_connection_input(struct server_connection *conn)
{
const unsigned char *data;
size_t size;
const char *line;
int exit_code;
if (!conn->handshaked) {
if ((line = i_stream_read_next_line(conn->input)) == NULL) {
if (conn->input->eof || conn->input->stream_errno != 0) {
server_log_disconnect_error(conn);
server_connection_destroy(&conn);
}
return;
}
conn->handshaked = TRUE;
if (strcmp(line, "+") == 0)
server_connection_authenticated(conn);
else if (strcmp(line, "-") == 0) {
if (server_connection_authenticate(conn) < 0) {
server_connection_destroy(&conn);
return;
}
return;
} else {
i_error("doveadm server sent invalid handshake: %s",
line);
server_connection_destroy(&conn);
return;
}
}
if (i_stream_read(conn->input) < 0) {
/* disconnected */
server_log_disconnect_error(conn);
server_connection_destroy(&conn);
return;
}
if (!conn->authenticated) {
if ((line = i_stream_next_line(conn->input)) == NULL)
return;
if (strcmp(line, "+") == 0)
server_connection_authenticated(conn);
else {
i_error("doveadm authentication failed (%s)", line+1);
server_connection_destroy(&conn);
return;
}
}
data = i_stream_get_data(conn->input, &size);
if (size == 0)
return;
switch (conn->state) {
case SERVER_REPLY_STATE_DONE:
i_error("doveadm server sent unexpected input");
server_connection_destroy(&conn);
return;
case SERVER_REPLY_STATE_PRINT:
server_handle_input(conn, data, size);
if (conn->state != SERVER_REPLY_STATE_RET)
break;
/* fall through */
case SERVER_REPLY_STATE_RET:
line = i_stream_next_line(conn->input);
if (line == NULL)
return;
if (line[0] == '+')
server_connection_callback(conn, 0, "");
else if (line[0] == '-') {
line++;
if (strcmp(line, "NOUSER") == 0)
exit_code = EX_NOUSER;
else if (str_to_int(line, &exit_code) < 0) {
/* old doveadm-server */
exit_code = EX_TEMPFAIL;
}
server_connection_callback(conn, exit_code, line);
} else {
i_error("doveadm server sent broken input "
"(expected cmd reply): %s", line);
server_connection_destroy(&conn);
break;
}
if (conn->callback == NULL) {
/* we're finished, close the connection */
server_connection_destroy(&conn);
}
break;
}
}
