varnish-cache/bin/varnishtest/teken_subr_compat.h
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/*-
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 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 *
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 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 * $FreeBSD: head/sys/teken/teken_subr_compat.h 332297 2018-04-08 19:23:50Z phk $
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 */
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static void
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teken_subr_cons25_set_border(const teken_t *t, unsigned int c)
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{
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        teken_funcs_param(t, TP_SETBORDER, c);
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}
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static void
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teken_subr_cons25_set_global_cursor_shape(const teken_t *t, unsigned int ncmds,
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    const unsigned int cmds[])
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{
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        unsigned int code, i;
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        /*
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         * Pack the args to work around API deficiencies.  This requires
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         * knowing too much about the low level to be fully compatible.
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         * Returning when ncmds > 3 is necessary and happens to be
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         * compatible.  Discarding high bits is necessary and happens to
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         * be incompatible only for invalid args when ncmds == 3.
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         */
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        if (ncmds > 3)
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                return;
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        code = 0;
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        for (i = ncmds; i > 0; i--)
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                code = (code << 8) | (cmds[i - 1] & 0xff);
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        code = (code << 8) | ncmds;
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        teken_funcs_param(t, TP_SETGLOBALCURSOR, code);
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}
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static void
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teken_subr_cons25_set_local_cursor_type(const teken_t *t, unsigned int type)
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{
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        teken_funcs_param(t, TP_SETLOCALCURSOR, type);
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}
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static const teken_color_t cons25_colors[8] = { TC_BLACK, TC_BLUE,
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    TC_GREEN, TC_CYAN, TC_RED, TC_MAGENTA, TC_BROWN, TC_WHITE };
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static void
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teken_subr_cons25_set_default_background(teken_t *t, unsigned int c)
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{
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        t->t_defattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
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        t->t_curattr.ta_bgcolor = cons25_colors[c % 8] | (c & 8);
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}
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static void
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teken_subr_cons25_set_default_foreground(teken_t *t, unsigned int c)
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{
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        t->t_defattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
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        t->t_curattr.ta_fgcolor = cons25_colors[c % 8] | (c & 8);
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}
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static const teken_color_t cons25_revcolors[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
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void
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teken_get_defattr_cons25(const teken_t *t, int *fg, int *bg)
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{
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        *fg = cons25_revcolors[teken_256to8(t->t_defattr.ta_fgcolor)];
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        if (t->t_defattr.ta_format & TF_BOLD)
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                *fg += 8;
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        *bg = cons25_revcolors[teken_256to8(t->t_defattr.ta_bgcolor)];
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}
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static void
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teken_subr_cons25_switch_virtual_terminal(const teken_t *t, unsigned int vt)
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{
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        teken_funcs_param(t, TP_SWITCHVT, vt);
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}
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static void
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teken_subr_cons25_set_bell_pitch_duration(const teken_t *t, unsigned int pitch,
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    unsigned int duration)
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{
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        teken_funcs_param(t, TP_SETBELLPD, (pitch << 16) |
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            (duration & 0xffff));
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}
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static void
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teken_subr_cons25_set_graphic_rendition(teken_t *t, unsigned int cmd,
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    unsigned int param)
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{
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        (void)param;
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        switch (cmd) {
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        case 0: /* Reset. */
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                t->t_curattr = t->t_defattr;
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                break;
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        default:
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                teken_printf("unsupported attribute %u\n", cmd);
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        }
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}
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static void
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teken_subr_cons25_set_terminal_mode(teken_t *t, unsigned int mode)
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{
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        switch (mode) {
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        case 0: /* Switch terminal to xterm. */
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                t->t_stateflags &= ~TS_CONS25;
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                break;
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        case 1: /* Switch terminal to cons25. */
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                t->t_stateflags |= TS_CONS25;
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                break;
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        default:
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                break;
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        }
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}
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#if 0
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static void
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teken_subr_vt52_decid(teken_t *t)
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{
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        const char response[] = "\x1B/Z";
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        teken_funcs_respond(t, response, sizeof response - 1);
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}
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#endif