+void set_iconic(void *frontend, int iconic);
+void move_window(void *frontend, int x, int y);
+void set_zorder(void *frontend, int top);
+void refresh_window(void *frontend);
+void set_zoomed(void *frontend, int zoomed);
+int is_iconic(void *frontend);
+void get_window_pos(void *frontend, int *x, int *y);
+void get_window_pixels(void *frontend, int *x, int *y);
+char *get_window_title(void *frontend, int icon);
+/* Hint from backend to frontend about time-consuming operations.
+ * Initial state is assumed to be BUSY_NOT. */
+enum {
+ BUSY_NOT, /* Not busy, all user interaction OK */
+ BUSY_WAITING, /* Waiting for something; local event loops still running
+ so some local interaction (e.g. menus) OK, but network
+ stuff is suspended */
+ BUSY_CPU /* Locally busy (e.g. crypto); user interaction suspended */
+};
+void set_busy_status(void *frontend, int status);
+
+void cleanup_exit(int);
+
+/*
+ * Exports from conf.c, and a big enum (via parametric macro) of
+ * configuration option keys.
+ */
+#define CONFIG_OPTIONS(X) \
+ /* X(value-type, subkey-type, keyword) */ \
+ X(STR, NONE, host) \
+ X(INT, NONE, port) \
+ X(INT, NONE, protocol) \
+ X(INT, NONE, addressfamily) \
+ X(INT, NONE, close_on_exit) \
+ X(INT, NONE, warn_on_close) \
+ X(INT, NONE, ping_interval) /* in seconds */ \
+ X(INT, NONE, tcp_nodelay) \
+ X(INT, NONE, tcp_keepalives) \
+ X(STR, NONE, loghost) /* logical host being contacted, for host key check */ \
+ /* Proxy options */ \
+ X(STR, NONE, proxy_exclude_list) \
+ X(INT, NONE, proxy_dns) \
+ X(INT, NONE, even_proxy_localhost) \
+ X(INT, NONE, proxy_type) \
+ X(STR, NONE, proxy_host) \
+ X(INT, NONE, proxy_port) \
+ X(STR, NONE, proxy_username) \
+ X(STR, NONE, proxy_password) \
+ X(STR, NONE, proxy_telnet_command) \
+ /* SSH options */ \
+ X(STR, NONE, remote_cmd) \
+ X(STR, NONE, remote_cmd2) /* fallback if remote_cmd fails; never loaded or saved */ \
+ X(INT, NONE, nopty) \
+ X(INT, NONE, compression) \
+ X(INT, INT, ssh_kexlist) \
+ X(INT, NONE, ssh_rekey_time) /* in minutes */ \
+ X(STR, NONE, ssh_rekey_data) /* string encoding e.g. "100K", "2M", "1G" */ \
+ X(INT, NONE, tryagent) \
+ X(INT, NONE, agentfwd) \
+ X(INT, NONE, change_username) /* allow username switching in SSH-2 */ \
+ X(INT, INT, ssh_cipherlist) \
+ X(FILENAME, NONE, keyfile) \
+ X(INT, NONE, sshprot) /* use v1 or v2 when both available */ \
+ X(INT, NONE, ssh2_des_cbc) /* "des-cbc" unrecommended SSH-2 cipher */ \
+ X(INT, NONE, ssh_no_userauth) /* bypass "ssh-userauth" (SSH-2 only) */ \
+ X(INT, NONE, ssh_show_banner) /* show USERAUTH_BANNERs (SSH-2 only) */ \
+ X(INT, NONE, try_tis_auth) \
+ X(INT, NONE, try_ki_auth) \
+ X(INT, NONE, try_gssapi_auth) /* attempt gssapi auth */ \
+ X(INT, NONE, gssapifwd) /* forward tgt via gss */ \
+ X(INT, INT, ssh_gsslist) /* preference order for local GSS libs */ \
+ X(FILENAME, NONE, ssh_gss_custom) \
+ X(INT, NONE, ssh_subsys) /* run a subsystem rather than a command */ \
+ X(INT, NONE, ssh_subsys2) /* fallback to go with remote_cmd_ptr2 */ \
+ X(INT, NONE, ssh_no_shell) /* avoid running a shell */ \
+ X(STR, NONE, ssh_nc_host) /* host to connect to in `nc' mode */ \
+ X(INT, NONE, ssh_nc_port) /* port to connect to in `nc' mode */ \
+ /* Telnet options */ \
+ X(STR, NONE, termtype) \
+ X(STR, NONE, termspeed) \
+ X(STR, STR, ttymodes) /* values are "Vvalue" or "A" */ \
+ X(STR, STR, environmt) \
+ X(STR, NONE, username) \
+ X(INT, NONE, username_from_env) \
+ X(STR, NONE, localusername) \
+ X(INT, NONE, rfc_environ) \
+ X(INT, NONE, passive_telnet) \
+ /* Serial port options */ \
+ X(STR, NONE, serline) \
+ X(INT, NONE, serspeed) \
+ X(INT, NONE, serdatabits) \
+ X(INT, NONE, serstopbits) \
+ X(INT, NONE, serparity) \
+ X(INT, NONE, serflow) \
+ /* Keyboard options */ \
+ X(INT, NONE, bksp_is_delete) \
+ X(INT, NONE, rxvt_homeend) \
+ X(INT, NONE, funky_type) \
+ X(INT, NONE, no_applic_c) /* totally disable app cursor keys */ \
+ X(INT, NONE, no_applic_k) /* totally disable app keypad */ \
+ X(INT, NONE, no_mouse_rep) /* totally disable mouse reporting */ \
+ X(INT, NONE, no_remote_resize) /* disable remote resizing */ \
+ X(INT, NONE, no_alt_screen) /* disable alternate screen */ \
+ X(INT, NONE, no_remote_wintitle) /* disable remote retitling */ \
+ X(INT, NONE, no_dbackspace) /* disable destructive backspace */ \
+ X(INT, NONE, no_remote_charset) /* disable remote charset config */ \
+ X(INT, NONE, remote_qtitle_action) /* remote win title query action */ \
+ X(INT, NONE, app_cursor) \
+ X(INT, NONE, app_keypad) \
+ X(INT, NONE, nethack_keypad) \
+ X(INT, NONE, telnet_keyboard) \
+ X(INT, NONE, telnet_newline) \
+ X(INT, NONE, alt_f4) /* is it special? */ \
+ X(INT, NONE, alt_space) /* is it special? */ \
+ X(INT, NONE, alt_only) /* is it special? */ \
+ X(INT, NONE, localecho) \
+ X(INT, NONE, localedit) \
+ X(INT, NONE, alwaysontop) \
+ X(INT, NONE, fullscreenonaltenter) \
+ X(INT, NONE, scroll_on_key) \
+ X(INT, NONE, scroll_on_disp) \
+ X(INT, NONE, erase_to_scrollback) \
+ X(INT, NONE, compose_key) \
+ X(INT, NONE, ctrlaltkeys) \
+ X(STR, NONE, wintitle) /* initial window title */ \
+ /* Terminal options */ \
+ X(INT, NONE, savelines) \
+ X(INT, NONE, dec_om) \
+ X(INT, NONE, wrap_mode) \
+ X(INT, NONE, lfhascr) \
+ X(INT, NONE, cursor_type) /* 0=block 1=underline 2=vertical */ \
+ X(INT, NONE, blink_cur) \
+ X(INT, NONE, beep) \
+ X(INT, NONE, beep_ind) \
+ X(INT, NONE, bellovl) /* bell overload protection active? */ \
+ X(INT, NONE, bellovl_n) /* number of bells to cause overload */ \
+ X(INT, NONE, bellovl_t) /* time interval for overload (seconds) */ \
+ X(INT, NONE, bellovl_s) /* period of silence to re-enable bell (s) */ \
+ X(FILENAME, NONE, bell_wavefile) \
+ X(INT, NONE, scrollbar) \
+ X(INT, NONE, scrollbar_in_fullscreen) \
+ X(INT, NONE, resize_action) \
+ X(INT, NONE, bce) \
+ X(INT, NONE, blinktext) \
+ X(INT, NONE, win_name_always) \
+ X(INT, NONE, width) \
+ X(INT, NONE, height) \
+ X(FONT, NONE, font) \
+ X(INT, NONE, font_quality) \
+ X(FILENAME, NONE, logfilename) \
+ X(INT, NONE, logtype) \
+ X(INT, NONE, logxfovr) \
+ X(INT, NONE, logflush) \
+ X(INT, NONE, logomitpass) \
+ X(INT, NONE, logomitdata) \
+ X(INT, NONE, hide_mouseptr) \
+ X(INT, NONE, sunken_edge) \
+ X(INT, NONE, window_border) \
+ X(STR, NONE, answerback) \
+ X(STR, NONE, printer) \
+ X(INT, NONE, arabicshaping) \
+ X(INT, NONE, bidi) \
+ /* Colour options */ \
+ X(INT, NONE, ansi_colour) \
+ X(INT, NONE, xterm_256_colour) \
+ X(INT, NONE, system_colour) \
+ X(INT, NONE, try_palette) \
+ X(INT, NONE, bold_style) \
+ X(INT, INT, colours) \
+ /* Selection options */ \
+ X(INT, NONE, mouse_is_xterm) \
+ X(INT, NONE, rect_select) \
+ X(INT, NONE, rawcnp) \
+ X(INT, NONE, rtf_paste) \
+ X(INT, NONE, mouse_override) \
+ X(INT, INT, wordness) \
+ /* translations */ \
+ X(INT, NONE, vtmode) \
+ X(STR, NONE, line_codepage) \
+ X(INT, NONE, cjk_ambig_wide) \
+ X(INT, NONE, utf8_override) \
+ X(INT, NONE, xlat_capslockcyr) \
+ /* X11 forwarding */ \
+ X(INT, NONE, x11_forward) \
+ X(STR, NONE, x11_display) \
+ X(INT, NONE, x11_auth) \
+ X(FILENAME, NONE, xauthfile) \
+ /* port forwarding */ \
+ X(INT, NONE, lport_acceptall) /* accept conns from hosts other than localhost */ \
+ X(INT, NONE, rport_acceptall) /* same for remote forwarded ports (SSH-2 only) */ \
+ /* \
+ * Subkeys for 'portfwd' can have the following forms: \
+ * \
+ * [LR]localport \
+ * [LR]localaddr:localport \
+ * \
+ * Dynamic forwardings are indicated by an 'L' key, and the \
+ * special value "D". For all other forwardings, the value \
+ * should be of the form 'host:port'. \
+ */ \
+ X(STR, STR, portfwd) \
+ /* SSH bug compatibility modes */ \
+ X(INT, NONE, sshbug_ignore1) \
+ X(INT, NONE, sshbug_plainpw1) \
+ X(INT, NONE, sshbug_rsa1) \
+ X(INT, NONE, sshbug_hmac2) \
+ X(INT, NONE, sshbug_derivekey2) \
+ X(INT, NONE, sshbug_rsapad2) \
+ X(INT, NONE, sshbug_pksessid2) \
+ X(INT, NONE, sshbug_rekey2) \
+ X(INT, NONE, sshbug_maxpkt2) \
+ X(INT, NONE, sshbug_ignore2) \
+ X(INT, NONE, sshbug_winadj) \
+ /* \
+ * ssh_simple means that we promise never to open any channel \
+ * other than the main one, which means it can safely use a very \
+ * large window in SSH-2. \
+ */ \
+ X(INT, NONE, ssh_simple) \
+ /* Options for pterm. Should split out into platform-dependent part. */ \
+ X(INT, NONE, stamp_utmp) \
+ X(INT, NONE, login_shell) \
+ X(INT, NONE, scrollbar_on_left) \
+ X(INT, NONE, shadowbold) \
+ X(FONT, NONE, boldfont) \
+ X(FONT, NONE, widefont) \
+ X(FONT, NONE, wideboldfont) \
+ X(INT, NONE, shadowboldoffset) \
+ X(INT, NONE, crhaslf) \
+ X(STR, NONE, winclass) \
+
+/* Now define the actual enum of option keywords using that macro. */
+#define CONF_ENUM_DEF(valtype, keytype, keyword) CONF_ ## keyword,
+enum config_primary_key { CONFIG_OPTIONS(CONF_ENUM_DEF) N_CONFIG_OPTIONS };
+#undef CONF_ENUM_DEF
+
+#define NCFGCOLOURS 22 /* number of colours in CONF_colours above */
+
+/* Functions handling configuration structures. */
+Conf *conf_new(void); /* create an empty configuration */
+void conf_free(Conf *conf);
+Conf *conf_copy(Conf *oldconf);
+void conf_copy_into(Conf *dest, Conf *src);
+/* Mandatory accessor functions: enforce by assertion that keys exist. */
+int conf_get_int(Conf *conf, int key);
+int conf_get_int_int(Conf *conf, int key, int subkey);
+char *conf_get_str(Conf *conf, int key); /* result still owned by conf */
+char *conf_get_str_str(Conf *conf, int key, const char *subkey);
+Filename *conf_get_filename(Conf *conf, int key);
+FontSpec *conf_get_fontspec(Conf *conf, int key); /* still owned by conf */
+/* Optional accessor function: return NULL if key does not exist. */
+char *conf_get_str_str_opt(Conf *conf, int key, const char *subkey);
+/* Accessor function to step through a string-subkeyed list.
+ * Returns the next subkey after the provided one, or the first if NULL.
+ * Returns NULL if there are none left.
+ * Both the return value and *subkeyout are still owned by conf. */
+char *conf_get_str_strs(Conf *conf, int key, char *subkeyin, char **subkeyout);
+/* Return the nth string subkey in a list. Owned by conf. NULL if beyond end */
+char *conf_get_str_nthstrkey(Conf *conf, int key, int n);
+/* Functions to set entries in configuration. Always copy their inputs. */
+void conf_set_int(Conf *conf, int key, int value);
+void conf_set_int_int(Conf *conf, int key, int subkey, int value);
+void conf_set_str(Conf *conf, int key, const char *value);
+void conf_set_str_str(Conf *conf, int key,
+ const char *subkey, const char *val);
+void conf_del_str_str(Conf *conf, int key, const char *subkey);
+void conf_set_filename(Conf *conf, int key, const Filename *val);
+void conf_set_fontspec(Conf *conf, int key, const FontSpec *val);
+/* Serialisation functions for Duplicate Session */
+int conf_serialised_size(Conf *conf);
+void conf_serialise(Conf *conf, void *data);
+int conf_deserialise(Conf *conf, void *data, int maxsize);/*returns size used*/
+
+/*
+ * Functions to copy, free, serialise and deserialise FontSpecs.
+ * Provided per-platform, to go with the platform's idea of a
+ * FontSpec's contents.
+ *
+ * fontspec_serialise returns the number of bytes written, and can
+ * handle data==NULL without crashing. So you can call it once to find
+ * out a size, then again once you've allocated a buffer.
+ */
+FontSpec *fontspec_copy(const FontSpec *f);
+void fontspec_free(FontSpec *f);
+int fontspec_serialise(FontSpec *f, void *data);
+FontSpec *fontspec_deserialise(void *data, int maxsize, int *used);