config.c

        if (ctrl == td->listbox) {
            int ind = dlg_listbox_index(td->listbox, dlg);
            char *val;
            if (ind < 0) {
                return; /* no item selected */
            }
            val = conf_get_str_str(conf, CONF_ttymodes,
                                   conf_get_str_nthstrkey(conf, CONF_ttymodes,
                                                          ind));
            assert(val != NULL);
            /* Do this first to defuse side-effects on radio buttons: */
            dlg_editbox_set(td->valbox, dlg, val+1);
            dlg_radiobutton_set(td->valradio, dlg,
                                val[0] == 'A' ? 0 : (val[0] == 'N' ? 1 : 2));
        }
    } else if (event == EVENT_VALCHANGE) {
        if (ctrl == td->valbox) {
            /* If they're editing the text box, we assume they want its
             * value to be used. */
            dlg_radiobutton_set(td->valradio, dlg, 2);
        }
    } else if (event == EVENT_ACTION) {
        if (ctrl == td->setbutton) {
            int ind = dlg_listbox_index(td->listbox, dlg);
            const char *key;
            char *str, *val;
            char type;

            {
                const char types[] = {'A', 'N', 'V'};
                int button = dlg_radiobutton_get(td->valradio, dlg);
                assert(button >= 0 && button < lenof(types));
                type = types[button];
            }

            /* Construct new entry */
            if (ind >= 0) {
                key = conf_get_str_nthstrkey(conf, CONF_ttymodes, ind);
                str = (type == 'V' ? dlg_editbox_get(td->valbox, dlg)
                                   : dupstr(""));
                val = dupprintf("%c%s", type, str);
                sfree(str);
                conf_set_str_str(conf, CONF_ttymodes, key, val);
                sfree(val);
                dlg_refresh(td->listbox, dlg);
                dlg_listbox_select(td->listbox, dlg, ind);
            } else {
                /* Not a multisel listbox, so this means nothing selected */
                dlg_beep(dlg);
            }
        }
    }
}

struct environ_data {
    union control *varbox, *valbox, *addbutton, *rembutton, *listbox;
};

static void environ_handler(union control *ctrl, dlgparam *dlg,
                            void *data, int event)
{
    Conf *conf = (Conf *)data;
    struct environ_data *ed =
        (struct environ_data *)ctrl->generic.context.p;

    if (event == EVENT_REFRESH) {
        if (ctrl == ed->listbox) {
            char *key, *val;
            dlg_update_start(ctrl, dlg);
            dlg_listbox_clear(ctrl, dlg);
            for (val = conf_get_str_strs(conf, CONF_environmt, NULL, &key);
                 val != NULL;
                 val = conf_get_str_strs(conf, CONF_environmt, key, &key)) {
                char *p = dupprintf("%s\t%s", key, val);
                dlg_listbox_add(ctrl, dlg, p);
                sfree(p);
            }
            dlg_update_done(ctrl, dlg);
        }
    } else if (event == EVENT_ACTION) {
        if (ctrl == ed->addbutton) {
            char *key, *val, *str;
            key = dlg_editbox_get(ed->varbox, dlg);
            if (!*key) {
                sfree(key);
                dlg_beep(dlg);
                return;
            }
            val = dlg_editbox_get(ed->valbox, dlg);
            if (!*val) {
                sfree(key);
                sfree(val);
                dlg_beep(dlg);
                return;
            }
            conf_set_str_str(conf, CONF_environmt, key, val);
            str = dupcat(key, "\t", val);
            dlg_editbox_set(ed->varbox, dlg, "");
            dlg_editbox_set(ed->valbox, dlg, "");
            sfree(str);
            sfree(key);
            sfree(val);
            dlg_refresh(ed->listbox, dlg);
        } else if (ctrl == ed->rembutton) {
            int i = dlg_listbox_index(ed->listbox, dlg);
            if (i < 0) {
                dlg_beep(dlg);
            } else {
                char *key, *val;

                key = conf_get_str_nthstrkey(conf, CONF_environmt, i);
                if (key) {
                    /* Populate controls with the entry we're about to delete
                     * for ease of editing */
                    val = conf_get_str_str(conf, CONF_environmt, key);
                    dlg_editbox_set(ed->varbox, dlg, key);
                    dlg_editbox_set(ed->valbox, dlg, val);
                    /* And delete it */
                    conf_del_str_str(conf, CONF_environmt, key);
                }
            }
            dlg_refresh(ed->listbox, dlg);
        }
    }
}

struct portfwd_data {
    union control *addbutton, *rembutton, *listbox;
    union control *sourcebox, *destbox, *direction;
#ifndef NO_IPV6
    union control *addressfamily;
#endif
};

static void portfwd_handler(union control *ctrl, dlgparam *dlg,
                            void *data, int event)
{
    Conf *conf = (Conf *)data;
    struct portfwd_data *pfd =
        (struct portfwd_data *)ctrl->generic.context.p;

    if (event == EVENT_REFRESH) {
        if (ctrl == pfd->listbox) {
            char *key, *val;
            dlg_update_start(ctrl, dlg);
            dlg_listbox_clear(ctrl, dlg);
            for (val = conf_get_str_strs(conf, CONF_portfwd, NULL, &key);
                 val != NULL;
                 val = conf_get_str_strs(conf, CONF_portfwd, key, &key)) {
                char *p;
                if (!strcmp(val, "D")) {
                    char *L;
                    /*
                     * A dynamic forwarding is stored as L12345=D or
                     * 6L12345=D (since it's mutually exclusive with
                     * L12345=anything else), but displayed as D12345
                     * to match the fiction that 'Local', 'Remote' and
                     * 'Dynamic' are three distinct modes and also to
                     * align with OpenSSH's command line option syntax
                     * that people will already be used to. So, for
                     * display purposes, find the L in the key string
                     * and turn it into a D.
                     */
                    p = dupprintf("%s\t", key);
                    L = strchr(p, 'L');
                    if (L) *L = 'D';
                } else
                    p = dupprintf("%s\t%s", key, val);
                dlg_listbox_add(ctrl, dlg, p);
                sfree(p);
            }
            dlg_update_done(ctrl, dlg);
        } else if (ctrl == pfd->direction) {
            /*
             * Default is Local.
             */
            dlg_radiobutton_set(ctrl, dlg, 0);
#ifndef NO_IPV6
        } else if (ctrl == pfd->addressfamily) {
            dlg_radiobutton_set(ctrl, dlg, 0);
#endif
        }
    } else if (event == EVENT_ACTION) {
        if (ctrl == pfd->addbutton) {
            const char *family, *type;
            char *src, *key, *val;
            int whichbutton;

#ifndef NO_IPV6
            whichbutton = dlg_radiobutton_get(pfd->addressfamily, dlg);
            if (whichbutton == 1)
                family = "4";
            else if (whichbutton == 2)
                family = "6";
            else
#endif
                family = "";

            whichbutton = dlg_radiobutton_get(pfd->direction, dlg);
            if (whichbutton == 0)
                type = "L";
            else if (whichbutton == 1)
                type = "R";
            else
                type = "D";

            src = dlg_editbox_get(pfd->sourcebox, dlg);
            if (!*src) {
                dlg_error_msg(dlg, "You need to specify a source port number");
                sfree(src);
                return;
            }
            if (*type != 'D') {
                val = dlg_editbox_get(pfd->destbox, dlg);
                if (!*val || !host_strchr(val, ':')) {
                    dlg_error_msg(dlg,
                                  "You need to specify a destination address\n"
                                  "in the form \"host.name:port\"");
                    sfree(src);
                    sfree(val);
                    return;
                }
            } else {
                type = "L";
                val = dupstr("D");     /* special case */
            }

            key = dupcat(family, type, src);
            sfree(src);

            if (conf_get_str_str_opt(conf, CONF_portfwd, key)) {
                dlg_error_msg(dlg, "Specified forwarding already exists");
            } else {
                conf_set_str_str(conf, CONF_portfwd, key, val);
            }

            sfree(key);
            sfree(val);
            dlg_refresh(pfd->listbox, dlg);
        } else if (ctrl == pfd->rembutton) {
            int i = dlg_listbox_index(pfd->listbox, dlg);
            if (i < 0) {
                dlg_beep(dlg);
            } else {
                char *key, *p;
                const char *val;

                key = conf_get_str_nthstrkey(conf, CONF_portfwd, i);
                if (key) {
                    static const char *const afs = "A46";
                    static const char *const dirs = "LRD";
                    const char *afp;
                    int dir;
#ifndef NO_IPV6
                    int idx;
#endif

                    /* Populate controls with the entry we're about to delete
                     * for ease of editing */
                    p = key;

                    afp = strchr(afs, *p);
#ifndef NO_IPV6
                    idx = afp ? afp-afs : 0;
#endif
                    if (afp)
                        p++;
#ifndef NO_IPV6
                    dlg_radiobutton_set(pfd->addressfamily, dlg, idx);
#endif

                    dir = *p;

                    val = conf_get_str_str(conf, CONF_portfwd, key);
                    if (!strcmp(val, "D")) {
                        dir = 'D';
                        val = "";
                    }

                    dlg_radiobutton_set(pfd->direction, dlg,
                                        strchr(dirs, dir) - dirs);
                    p++;

                    dlg_editbox_set(pfd->sourcebox, dlg, p);
                    dlg_editbox_set(pfd->destbox, dlg, val);
                    /* And delete it */
                    conf_del_str_str(conf, CONF_portfwd, key);
                }
            }
            dlg_refresh(pfd->listbox, dlg);
        }
    }
}

struct manual_hostkey_data {
    union control *addbutton, *rembutton, *listbox, *keybox;
};

static void manual_hostkey_handler(union control *ctrl, dlgparam *dlg,
                                   void *data, int event)
{
    Conf *conf = (Conf *)data;
    struct manual_hostkey_data *mh =
        (struct manual_hostkey_data *)ctrl->generic.context.p;

    if (event == EVENT_REFRESH) {
        if (ctrl == mh->listbox) {
            char *key, *val;
            dlg_update_start(ctrl, dlg);
            dlg_listbox_clear(ctrl, dlg);
            for (val = conf_get_str_strs(conf, CONF_ssh_manual_hostkeys,
                                         NULL, &key);
                 val != NULL;
                 val = conf_get_str_strs(conf, CONF_ssh_manual_hostkeys,
                                         key, &key)) {
                dlg_listbox_add(ctrl, dlg, key);
            }
            dlg_update_done(ctrl, dlg);
        }
    } else if (event == EVENT_ACTION) {
        if (ctrl == mh->addbutton) {
            char *key;

            key = dlg_editbox_get(mh->keybox, dlg);
            if (!*key) {
                dlg_error_msg(dlg, "You need to specify a host key or "
                              "fingerprint");
                sfree(key);
                return;
            }

            if (!validate_manual_hostkey(key)) {
                dlg_error_msg(dlg, "Host key is not in a valid format");
            } else if (conf_get_str_str_opt(conf, CONF_ssh_manual_hostkeys,
                                            key)) {
                dlg_error_msg(dlg, "Specified host key is already listed");
            } else {
                conf_set_str_str(conf, CONF_ssh_manual_hostkeys, key, "");
            }

            sfree(key);
            dlg_refresh(mh->listbox, dlg);
        } else if (ctrl == mh->rembutton) {
            int i = dlg_listbox_index(mh->listbox, dlg);
            if (i < 0) {
                dlg_beep(dlg);
            } else {
                char *key;

                key = conf_get_str_nthstrkey(conf, CONF_ssh_manual_hostkeys, i);
                if (key) {
                    dlg_editbox_set(mh->keybox, dlg, key);
                    /* And delete it */
                    conf_del_str_str(conf, CONF_ssh_manual_hostkeys, key);
                }
            }
            dlg_refresh(mh->listbox, dlg);
        }
    }
}

static void clipboard_selector_handler(union control *ctrl, dlgparam *dlg,
                                       void *data, int event)
{
    Conf *conf = (Conf *)data;
    int setting = ctrl->generic.context.i;
#ifdef NAMED_CLIPBOARDS
    int strsetting = ctrl->editbox.context2.i;
#endif

    static const struct {
        const char *name;
        int id;
    } options[] = {
        {"No action", CLIPUI_NONE},
        {CLIPNAME_IMPLICIT, CLIPUI_IMPLICIT},
        {CLIPNAME_EXPLICIT, CLIPUI_EXPLICIT},
    };

    if (event == EVENT_REFRESH) {
        int i, val = conf_get_int(conf, setting);

        dlg_update_start(ctrl, dlg);
        dlg_listbox_clear(ctrl, dlg);

#ifdef NAMED_CLIPBOARDS
        for (i = 0; i < lenof(options); i++)
            dlg_listbox_add(ctrl, dlg, options[i].name);
        if (val == CLIPUI_CUSTOM) {
            const char *sval = conf_get_str(conf, strsetting);
            for (i = 0; i < lenof(options); i++)
                if (!strcmp(sval, options[i].name))
                    break;             /* needs escaping */
            if (i < lenof(options) || sval[0] == '=') {
                char *escaped = dupcat("=", sval);
                dlg_editbox_set(ctrl, dlg, escaped);
                sfree(escaped);
            } else {
                dlg_editbox_set(ctrl, dlg, sval);
            }
        } else {
            dlg_editbox_set(ctrl, dlg, options[0].name); /* fallback */
            for (i = 0; i < lenof(options); i++)
                if (val == options[i].id)
                    dlg_editbox_set(ctrl, dlg, options[i].name);
        }
#else
        for (i = 0; i < lenof(options); i++)
            dlg_listbox_addwithid(ctrl, dlg, options[i].name, options[i].id);
        dlg_listbox_select(ctrl, dlg, 0); /* fallback */
        for (i = 0; i < lenof(options); i++)
            if (val == options[i].id)
                dlg_listbox_select(ctrl, dlg, i);
#endif
        dlg_update_done(ctrl, dlg);
    } else if (event == EVENT_SELCHANGE
#ifdef NAMED_CLIPBOARDS
               || event == EVENT_VALCHANGE
#endif
        ) {
#ifdef NAMED_CLIPBOARDS
        char *sval = dlg_editbox_get(ctrl, dlg);
        int i;

        for (i = 0; i < lenof(options); i++)
            if (!strcmp(sval, options[i].name)) {
                conf_set_int(conf, setting, options[i].id);
                conf_set_str(conf, strsetting, "");
                break;
            }
        if (i == lenof(options)) {
            conf_set_int(conf, setting, CLIPUI_CUSTOM);
            if (sval[0] == '=')
                sval++;
            conf_set_str(conf, strsetting, sval);
        }

        sfree(sval);
#else
        int index = dlg_listbox_index(ctrl, dlg);
        if (index >= 0) {
            int val = dlg_listbox_getid(ctrl, dlg, index);
            conf_set_int(conf, setting, val);
        }
#endif
    }
}

static void clipboard_control(struct controlset *s, const char *label,
                              char shortcut, int percentage, intorptr helpctx,
                              int setting, int strsetting)
{
#ifdef NAMED_CLIPBOARDS
    ctrl_combobox(s, label, shortcut, percentage, helpctx,
                  clipboard_selector_handler, I(setting), I(strsetting));
#else
    /* strsetting isn't needed in this case */
    ctrl_droplist(s, label, shortcut, percentage, helpctx,
                  clipboard_selector_handler, I(setting));
#endif
}

static void serial_parity_handler(union control *ctrl, dlgparam *dlg,
                                  void *data, int event)
{
    static const struct {
        const char *name;
        int val;
    } parities[] = {
        {"None", SER_PAR_NONE},
        {"Odd", SER_PAR_ODD},
        {"Even", SER_PAR_EVEN},
        {"Mark", SER_PAR_MARK},
        {"Space", SER_PAR_SPACE},
    };
    int mask = ctrl->listbox.context.i;
    int i, j;
    Conf *conf = (Conf *)data;

    if (event == EVENT_REFRESH) {
        /* Fetching this once at the start of the function ensures we
         * remember what the right value is supposed to be when
         * operations below cause reentrant calls to this function. */
        int oldparity = conf_get_int(conf, CONF_serparity);

        dlg_update_start(ctrl, dlg);
        dlg_listbox_clear(ctrl, dlg);
        for (i = 0; i < lenof(parities); i++)  {
            if (mask & (1 << parities[i].val))
                dlg_listbox_addwithid(ctrl, dlg, parities[i].name,
                                      parities[i].val);
        }
        for (i = j = 0; i < lenof(parities); i++) {
            if (mask & (1 << parities[i].val)) {
                if (oldparity == parities[i].val) {
                    dlg_listbox_select(ctrl, dlg, j);
                    break;
                }
                j++;
            }
        }
        if (i == lenof(parities)) {    /* an unsupported setting was chosen */
            dlg_listbox_select(ctrl, dlg, 0);
            oldparity = SER_PAR_NONE;
        }
        dlg_update_done(ctrl, dlg);
        conf_set_int(conf, CONF_serparity, oldparity);    /* restore */
    } else if (event == EVENT_SELCHANGE) {
        int i = dlg_listbox_index(ctrl, dlg);
        if (i < 0)
            i = SER_PAR_NONE;
        else
            i = dlg_listbox_getid(ctrl, dlg, i);
        conf_set_int(conf, CONF_serparity, i);
    }
}

static void serial_flow_handler(union control *ctrl, dlgparam *dlg,
                                void *data, int event)
{
    static const struct {
        const char *name;
        int val;
    } flows[] = {
        {"None", SER_FLOW_NONE},
        {"XON/XOFF", SER_FLOW_XONXOFF},
        {"RTS/CTS", SER_FLOW_RTSCTS},
        {"DSR/DTR", SER_FLOW_DSRDTR},
    };
    int mask = ctrl->listbox.context.i;
    int i, j;
    Conf *conf = (Conf *)data;

    if (event == EVENT_REFRESH) {
        /* Fetching this once at the start of the function ensures we
         * remember what the right value is supposed to be when
         * operations below cause reentrant calls to this function. */
        int oldflow = conf_get_int(conf, CONF_serflow);

        dlg_update_start(ctrl, dlg);
        dlg_listbox_clear(ctrl, dlg);
        for (i = 0; i < lenof(flows); i++)  {
            if (mask & (1 << flows[i].val))
                dlg_listbox_addwithid(ctrl, dlg, flows[i].name, flows[i].val);
        }
        for (i = j = 0; i < lenof(flows); i++) {
            if (mask & (1 << flows[i].val)) {
                if (oldflow == flows[i].val) {
                    dlg_listbox_select(ctrl, dlg, j);
                    break;
                }
                j++;
            }
        }
        if (i == lenof(flows)) {       /* an unsupported setting was chosen */
            dlg_listbox_select(ctrl, dlg, 0);
            oldflow = SER_FLOW_NONE;
        }
        dlg_update_done(ctrl, dlg);
        conf_set_int(conf, CONF_serflow, oldflow);/* restore */
    } else if (event == EVENT_SELCHANGE) {
        int i = dlg_listbox_index(ctrl, dlg);
        if (i < 0)
            i = SER_FLOW_NONE;
        else
            i = dlg_listbox_getid(ctrl, dlg, i);
        conf_set_int(conf, CONF_serflow, i);
    }
}

void setup_config_box(struct controlbox *b, bool midsession,
                      int protocol, int protcfginfo)
{
    const struct BackendVtable *backvt;
    struct controlset *s;
    struct sessionsaver_data *ssd;
    struct charclass_data *ccd;
    struct colour_data *cd;
    struct ttymodes_data *td;
    struct environ_data *ed;
    struct portfwd_data *pfd;
    struct manual_hostkey_data *mh;
    union control *c;
    bool resize_forbidden = false;
    char *str;

    ssd = (struct sessionsaver_data *)
        ctrl_alloc_with_free(b, sizeof(struct sessionsaver_data),
                             sessionsaver_data_free);
    memset(ssd, 0, sizeof(*ssd));
    ssd->savedsession = dupstr("");
    ssd->midsession = midsession;

    /*
     * The standard panel that appears at the bottom of all panels:
     * Open, Cancel, Apply etc.
     */
    s = ctrl_getset(b, "", "", "");
    ctrl_columns(s, 5, 20, 20, 20, 20, 20);
    ssd->okbutton = ctrl_pushbutton(s,
                                    (midsession ? "Apply" : "Open"),
                                    (char)(midsession ? 'a' : 'o'),
                                    HELPCTX(no_help),
                                    sessionsaver_handler, P(ssd));
    ssd->okbutton->button.isdefault = true;
    ssd->okbutton->generic.column = 3;
    ssd->cancelbutton = ctrl_pushbutton(s, "Cancel", 'c', HELPCTX(no_help),
                                        sessionsaver_handler, P(ssd));
    ssd->cancelbutton->button.iscancel = true;
    ssd->cancelbutton->generic.column = 4;
    /* We carefully don't close the 5-column part, so that platform-
     * specific add-ons can put extra buttons alongside Open and Cancel. */

    /*
     * The Session panel.
     */
    str = dupprintf("Basic options for your %s session", appname);
    ctrl_settitle(b, "Session", str);
    sfree(str);

    if (!midsession) {
        struct hostport *hp = (struct hostport *)
            ctrl_alloc(b, sizeof(struct hostport));

        s = ctrl_getset(b, "Session", "hostport",
                        "Specify the destination you want to connect to");
        ctrl_columns(s, 2, 75, 25);
        c = ctrl_editbox(s, HOST_BOX_TITLE, 'n', 100,
                         HELPCTX(session_hostname),
                         config_host_handler, I(0), I(0));
        c->generic.column = 0;
        hp->host = c;
        c = ctrl_editbox(s, PORT_BOX_TITLE, 'p', 100,
                         HELPCTX(session_hostname),
                         config_port_handler, I(0), I(0));
        c->generic.column = 1;
        hp->port = c;
        ctrl_columns(s, 1, 100);

        c = ctrl_radiobuttons(s, "Connection type:", NO_SHORTCUT, 4,
                              HELPCTX(session_hostname),
                              config_protocolbuttons_handler, P(hp), NULL);
        c->radio.buttons = sresize(c->radio.buttons, PROTOCOL_LIMIT, char *);
        c->radio.shortcuts = sresize(c->radio.shortcuts, PROTOCOL_LIMIT, char);
        c->radio.buttondata = sresize(c->radio.buttondata, PROTOCOL_LIMIT,
                                      intorptr);
        assert(c->radio.nbuttons == 0);
        for (int pass = 0; pass < 4; pass++) {
            for (size_t i = 0; backends[i]; i++) {
                int pass_needed = (
                    backends[i]->protocol == be_default_protocol ? 0 :
                    backends[i]->protocol == PROT_SERIAL ? 1 :
                    backends[i]->protocol == PROT_RAW ? 2 : 3);
                if (pass != pass_needed)
                    continue;

                c->radio.buttons[c->radio.nbuttons] =
                    dupstr(backends[i]->displayname);
                c->radio.shortcuts[c->radio.nbuttons] =
                    (backends[i]->protocol == PROT_SSH ? 's' :
                     backends[i]->protocol == PROT_SERIAL ? 'r' :
                     backends[i]->protocol == PROT_RAW ? 'w' :
                     NO_SHORTCUT);
                c->radio.buttondata[c->radio.nbuttons] =
                    I(backends[i]->protocol);
                c->radio.nbuttons++;
            }
        }
    }

    /*
     * The Load/Save panel is available even in mid-session.
     */
    s = ctrl_getset(b, "Session", "savedsessions",
                    midsession ? "Save the current session settings" :
                    "Load, save or delete a stored session");
    ctrl_columns(s, 2, 75, 25);
    get_sesslist(&ssd->sesslist, true);
    ssd->editbox = ctrl_editbox(s, "Saved Sessions", 'e', 100,
                                HELPCTX(session_saved),
                                sessionsaver_handler, P(ssd), P(NULL));
    ssd->editbox->generic.column = 0;
    /* Reset columns so that the buttons are alongside the list, rather
     * than alongside that edit box. */
    ctrl_columns(s, 1, 100);
    ctrl_columns(s, 2, 75, 25);
    ssd->listbox = ctrl_listbox(s, NULL, NO_SHORTCUT,
                                HELPCTX(session_saved),
                                sessionsaver_handler, P(ssd));
    ssd->listbox->generic.column = 0;
    ssd->listbox->listbox.height = 7;
    if (!midsession) {
        ssd->loadbutton = ctrl_pushbutton(s, "Load", 'l',
                                          HELPCTX(session_saved),
                                          sessionsaver_handler, P(ssd));
        ssd->loadbutton->generic.column = 1;
    } else {
        /* We can't offer the Load button mid-session, as it would allow the
         * user to load and subsequently save settings they can't see. (And
         * also change otherwise immutable settings underfoot; that probably
         * shouldn't be a problem, but.) */
        ssd->loadbutton = NULL;
    }
    /* "Save" button is permitted mid-session. */
    ssd->savebutton = ctrl_pushbutton(s, "Save", 'v',
                                      HELPCTX(session_saved),
                                      sessionsaver_handler, P(ssd));
    ssd->savebutton->generic.column = 1;
    if (!midsession) {
        ssd->delbutton = ctrl_pushbutton(s, "Delete", 'd',
                                         HELPCTX(session_saved),
                                         sessionsaver_handler, P(ssd));
        ssd->delbutton->generic.column = 1;
    } else {
        /* Disable the Delete button mid-session too, for UI consistency. */
        ssd->delbutton = NULL;
    }
    ctrl_columns(s, 1, 100);

    s = ctrl_getset(b, "Session", "otheropts", NULL);
    ctrl_radiobuttons(s, "Close window on exit:", 'x', 4,
                      HELPCTX(session_coe),
                      conf_radiobutton_handler,
                      I(CONF_close_on_exit),
                      "Always", I(FORCE_ON),
                      "Never", I(FORCE_OFF),
                      "Only on clean exit", I(AUTO), NULL);

    /*
     * The Session/Logging panel.
     */
    ctrl_settitle(b, "Session/Logging", "Options controlling session logging");

    s = ctrl_getset(b, "Session/Logging", "main", NULL);
    /*
     * The logging buttons change depending on whether SSH packet
     * logging can sensibly be available.
     */
    {
        const char *sshlogname, *sshrawlogname;
        if ((midsession && protocol == PROT_SSH) ||
            (!midsession && backend_vt_from_proto(PROT_SSH))) {
            sshlogname = "SSH packets";
            sshrawlogname = "SSH packets and raw data";
        } else {
            sshlogname = NULL;         /* this will disable both buttons */
            sshrawlogname = NULL;      /* this will just placate optimisers */
        }
        ctrl_radiobuttons(s, "Session logging:", NO_SHORTCUT, 2,
                          HELPCTX(logging_main),
                          loggingbuttons_handler,
                          I(CONF_logtype),
                          "None", 't', I(LGTYP_NONE),
                          "Printable output", 'p', I(LGTYP_ASCII),
                          "All session output", 'l', I(LGTYP_DEBUG),
                          sshlogname, 's', I(LGTYP_PACKETS),
                          sshrawlogname, 'r', I(LGTYP_SSHRAW),
                          NULL);
    }
    ctrl_filesel(s, "Log file name:", 'f',
                 NULL, true, "Select session log file name",
                 HELPCTX(logging_filename),
                 conf_filesel_handler, I(CONF_logfilename));
    ctrl_text(s, "(Log file name can contain &Y, &M, &D for date,"
              " &T for time, &H for host name, and &P for port number)",
              HELPCTX(logging_filename));
    ctrl_radiobuttons(s, "What to do if the log file already exists:", 'e', 1,
                      HELPCTX(logging_exists),
                      conf_radiobutton_handler, I(CONF_logxfovr),
                      "Always overwrite it", I(LGXF_OVR),
                      "Always append to the end of it", I(LGXF_APN),
                      "Ask the user every time", I(LGXF_ASK), NULL);
    ctrl_checkbox(s, "Flush log file frequently", 'u',
                 HELPCTX(logging_flush),
                 conf_checkbox_handler, I(CONF_logflush));
    ctrl_checkbox(s, "Include header", 'i',
                 HELPCTX(logging_header),
                 conf_checkbox_handler, I(CONF_logheader));

    if ((midsession && protocol == PROT_SSH) ||
        (!midsession && backend_vt_from_proto(PROT_SSH))) {
        s = ctrl_getset(b, "Session/Logging", "ssh",
                        "Options specific to SSH packet logging");
        ctrl_checkbox(s, "Omit known password fields", 'k',
                      HELPCTX(logging_ssh_omit_password),
                      conf_checkbox_handler, I(CONF_logomitpass));
        ctrl_checkbox(s, "Omit session data", 'd',
                      HELPCTX(logging_ssh_omit_data),
                      conf_checkbox_handler, I(CONF_logomitdata));
    }

    /*
     * The Terminal panel.
     */
    ctrl_settitle(b, "Terminal", "Options controlling the terminal emulation");

    s = ctrl_getset(b, "Terminal", "general", "Set various terminal options");
    ctrl_checkbox(s, "Auto wrap mode initially on", 'w',
                  HELPCTX(terminal_autowrap),
                  conf_checkbox_handler, I(CONF_wrap_mode));
    ctrl_checkbox(s, "DEC Origin Mode initially on", 'd',
                  HELPCTX(terminal_decom),
                  conf_checkbox_handler, I(CONF_dec_om));
    ctrl_checkbox(s, "Implicit CR in every LF", 'r',
                  HELPCTX(terminal_lfhascr),
                  conf_checkbox_handler, I(CONF_lfhascr));
    ctrl_checkbox(s, "Implicit LF in every CR", 'f',
                  HELPCTX(terminal_crhaslf),
                  conf_checkbox_handler, I(CONF_crhaslf));
    ctrl_checkbox(s, "Use background colour to erase screen", 'e',
                  HELPCTX(terminal_bce),
                  conf_checkbox_handler, I(CONF_bce));
    ctrl_checkbox(s, "Enable blinking text", 'n',
                  HELPCTX(terminal_blink),
                  conf_checkbox_handler, I(CONF_blinktext));
    ctrl_editbox(s, "Answerback to ^E:", 's', 100,
                 HELPCTX(terminal_answerback),
                 conf_editbox_handler, I(CONF_answerback), I(1));

    s = ctrl_getset(b, "Terminal", "ldisc", "Line discipline options");
    ctrl_radiobuttons(s, "Local echo:", 'l', 3,
                      HELPCTX(terminal_localecho),
                      conf_radiobutton_handler,I(CONF_localecho),
                      "Auto", I(AUTO),
                      "Force on", I(FORCE_ON),
                      "Force off", I(FORCE_OFF), NULL);
    ctrl_radiobuttons(s, "Local line editing:", 't', 3,
                      HELPCTX(terminal_localedit),
                      conf_radiobutton_handler,I(CONF_localedit),
                      "Auto", I(AUTO),
                      "Force on", I(FORCE_ON),
                      "Force off", I(FORCE_OFF), NULL);

    s = ctrl_getset(b, "Terminal", "printing", "Remote-controlled printing");
    ctrl_combobox(s, "Printer to send ANSI printer output to:", 'p', 100,
                  HELPCTX(terminal_printing),
                  printerbox_handler, P(NULL), P(NULL));

    /*
     * The Terminal/Keyboard panel.
     */
    ctrl_settitle(b, "Terminal/Keyboard",
                  "Options controlling the effects of keys");

    s = ctrl_getset(b, "Terminal/Keyboard", "mappings",
                    "Change the sequences sent by:");
    ctrl_radiobuttons(s, "The Backspace key", 'b', 2,
                      HELPCTX(keyboard_backspace),
                      conf_radiobutton_bool_handler,
                      I(CONF_bksp_is_delete),
                      "Control-H", I(0), "Control-? (127)", I(1), NULL);
    ctrl_radiobuttons(s, "The Home and End keys", 'e', 2,
                      HELPCTX(keyboard_homeend),
                      conf_radiobutton_bool_handler,
                      I(CONF_rxvt_homeend),
                      "Standard", I(false), "rxvt", I(true), NULL);
    ctrl_radiobuttons(s, "The Function keys and keypad", 'f', 3,
                      HELPCTX(keyboard_funkeys),
                      conf_radiobutton_handler,
                      I(CONF_funky_type),
                      "ESC[n~", I(0), "Linux", I(1), "Xterm R6", I(2),
                      "VT400", I(3), "VT100+", I(4), "SCO", I(5), NULL);

    s = ctrl_getset(b, "Terminal/Keyboard", "appkeypad",
                    "Application keypad settings:");
    ctrl_radiobuttons(s, "Initial state of cursor keys:", 'r', 3,
                      HELPCTX(keyboard_appcursor),
                      conf_radiobutton_bool_handler,
                      I(CONF_app_cursor),
                      "Normal", I(0), "Application", I(1), NULL);
    ctrl_radiobuttons(s, "Initial state of numeric keypad:", 'n', 3,
                      HELPCTX(keyboard_appkeypad),
                      numeric_keypad_handler, P(NULL),
                      "Normal", I(0), "Application", I(1), "NetHack", I(2),
                      NULL);

    /*
     * The Terminal/Bell panel.
     */
    ctrl_settitle(b, "Terminal/Bell",
                  "Options controlling the terminal bell");

    s = ctrl_getset(b, "Terminal/Bell", "style", "Set the style of bell");
    ctrl_radiobuttons(s, "Action to happen when a bell occurs:", 'b', 1,
                      HELPCTX(bell_style),
                      conf_radiobutton_handler, I(CONF_beep),
                      "None (bell disabled)", I(BELL_DISABLED),
                      "Make default system alert sound", I(BELL_DEFAULT),
                      "Visual bell (flash window)", I(BELL_VISUAL), NULL);

    s = ctrl_getset(b, "Terminal/Bell", "overload",
                    "Control the bell overload behaviour");
    ctrl_checkbox(s, "Bell is temporarily disabled when over-used", 'd',
                  HELPCTX(bell_overload),
                  conf_checkbox_handler, I(CONF_bellovl));
    ctrl_editbox(s, "Over-use means this many bells...", 'm', 20,
                 HELPCTX(bell_overload),
                 conf_editbox_handler, I(CONF_bellovl_n), I(-1));
    ctrl_editbox(s, "... in this many seconds", 't', 20,
                 HELPCTX(bell_overload),
                 conf_editbox_handler, I(CONF_bellovl_t),
                 I(-TICKSPERSEC));
    ctrl_text(s, "The bell is re-enabled after a few seconds of silence.",
              HELPCTX(bell_overload));
    ctrl_editbox(s, "Seconds of silence required", 's', 20,
                 HELPCTX(bell_overload),
                 conf_editbox_handler, I(CONF_bellovl_s),
                 I(-TICKSPERSEC));

    /*
     * The Terminal/Features panel.
     */
    ctrl_settitle(b, "Terminal/Features",
                  "Enabling and disabling advanced terminal features");

    s = ctrl_getset(b, "Terminal/Features", "main", NULL);
    ctrl_checkbox(s, "Disable application cursor keys mode", 'u',
                  HELPCTX(features_application),
                  conf_checkbox_handler, I(CONF_no_applic_c));
    ctrl_checkbox(s, "Disable application keypad mode", 'k',
                  HELPCTX(features_application),
                  conf_checkbox_handler, I(CONF_no_applic_k));
    ctrl_checkbox(s, "Disable xterm-style mouse reporting", 'x',
                  HELPCTX(features_mouse),
                  conf_checkbox_handler, I(CONF_no_mouse_rep));
    ctrl_checkbox(s, "Disable remote-controlled terminal resizing", 's',
                  HELPCTX(features_resize),
                  conf_checkbox_handler,
                  I(CONF_no_remote_resize));
    ctrl_checkbox(s, "Disable switching to alternate terminal screen", 'w',
                  HELPCTX(features_altscreen),
                  conf_checkbox_handler, I(CONF_no_alt_screen));
    ctrl_checkbox(s, "Disable remote-controlled window title changing", 't',
                  HELPCTX(features_retitle),
                  conf_checkbox_handler,
                  I(CONF_no_remote_wintitle));
    ctrl_radiobuttons(s, "Response to remote title query (SECURITY):", 'q', 3,
                      HELPCTX(features_qtitle),
                      conf_radiobutton_handler,
                      I(CONF_remote_qtitle_action),
                      "None", I(TITLE_NONE),
                      "Empty string", I(TITLE_EMPTY),
                      "Window title", I(TITLE_REAL), NULL);
    ctrl_checkbox(s, "Disable remote-controlled clearing of scrollback", 'e',
                  HELPCTX(features_clearscroll),
                  conf_checkbox_handler,
                  I(CONF_no_remote_clearscroll));
    ctrl_checkbox(s, "Disable destructive backspace on server sending ^?",'b',
                  HELPCTX(features_dbackspace),
                  conf_checkbox_handler, I(CONF_no_dbackspace));
    ctrl_checkbox(s, "Disable remote-controlled character set configuration",
                  'r', HELPCTX(features_charset), conf_checkbox_handler,
                  I(CONF_no_remote_charset));
    ctrl_checkbox(s, "Disable Arabic text shaping",
                  'l', HELPCTX(features_arabicshaping), conf_checkbox_handler,
                  I(CONF_no_arabicshaping));
    ctrl_checkbox(s, "Disable bidirectional text display",
                  'd', HELPCTX(features_bidi), conf_checkbox_handler,
                  I(CONF_no_bidi));

    /*
     * The Window panel.
     */
    str = dupprintf("Options controlling %s's window", appname);
    ctrl_settitle(b, "Window", str);
    sfree(str);

    backvt = backend_vt_from_proto(protocol);
    if (backvt)
        resize_forbidden = (backvt->flags & BACKEND_RESIZE_FORBIDDEN);

    if (!resize_forbidden || !midsession) {
        s = ctrl_getset(b, "Window", "size", "Set the size of the window");
        ctrl_columns(s, 2, 50, 50);
        c = ctrl_editbox(s, "Columns", 'm', 100,
                         HELPCTX(window_size),
                         conf_editbox_handler, I(CONF_width), I(-1));
        c->generic.column = 0;
        c = ctrl_editbox(s, "Rows", 'r', 100,
                         HELPCTX(window_size),
                         conf_editbox_handler, I(CONF_height),I(-1));
        c->generic.column = 1;
        ctrl_columns(s, 1, 100);
    }

    s = ctrl_getset(b, "Window", "scrollback",
                    "Control the scrollback in the window");
    ctrl_editbox(s, "Lines of scrollback", 's', 50,
                 HELPCTX(window_scrollback),
                 conf_editbox_handler, I(CONF_savelines), I(-1));
    ctrl_checkbox(s, "Display scrollbar", 'd',
                  HELPCTX(window_scrollback),
                  conf_checkbox_handler, I(CONF_scrollbar));
    ctrl_checkbox(s, "Reset scrollback on keypress", 'k',
                  HELPCTX(window_scrollback),
                  conf_checkbox_handler, I(CONF_scroll_on_key));
    ctrl_checkbox(s, "Reset scrollback on display activity", 'p',
                  HELPCTX(window_scrollback),
                  conf_checkbox_handler, I(CONF_scroll_on_disp));
    ctrl_checkbox(s, "Push erased text into scrollback", 'e',