994 lines
28 KiB
C
994 lines
28 KiB
C
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libguac-client-ssh.
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*
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* The Initial Developer of the Original Code is
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* Michael Jumper.
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* Portions created by the Initial Developer are Copyright (C) 2011
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdlib.h>
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#include "common.h"
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#include "sftp.h"
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#include "terminal.h"
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#include "terminal_handlers.h"
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#include "char_mappings.h"
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/**
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* Response string sent when identification is requested.
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*/
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#define GUAC_TERMINAL_VT102_ID "\x1B[?6c"
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/**
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* Arbitrary response to ENQ control character.
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*/
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#define GUAC_TERMINAL_ANSWERBACK "GUACAMOLE"
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/**
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* Response which indicates the terminal is alive.
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*/
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#define GUAC_TERMINAL_OK "\x1B[0n"
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int guac_terminal_echo(guac_terminal* term, char c) {
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static int bytes_remaining = 0;
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static int codepoint = 0;
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const int* char_mapping = term->char_mapping[term->active_char_set];
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/* If using non-Unicode mapping, just map straight bytes */
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if (char_mapping != NULL) {
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codepoint = c;
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bytes_remaining = 0;
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}
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/* 1-byte UTF-8 codepoint */
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else if ((c & 0x80) == 0x00) { /* 0xxxxxxx */
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codepoint = c & 0x7F;
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bytes_remaining = 0;
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}
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/* 2-byte UTF-8 codepoint */
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else if ((c & 0xE0) == 0xC0) { /* 110xxxxx */
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codepoint = c & 0x1F;
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bytes_remaining = 1;
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}
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/* 3-byte UTF-8 codepoint */
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else if ((c & 0xF0) == 0xE0) { /* 1110xxxx */
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codepoint = c & 0x0F;
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bytes_remaining = 2;
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}
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/* 4-byte UTF-8 codepoint */
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else if ((c & 0xF8) == 0xF0) { /* 11110xxx */
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codepoint = c & 0x07;
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bytes_remaining = 3;
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}
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/* Continuation of UTF-8 codepoint */
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else if ((c & 0xC0) == 0x80) { /* 10xxxxxx */
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codepoint = (codepoint << 6) | (c & 0x3F);
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bytes_remaining--;
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}
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/* Unrecognized prefix */
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else {
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codepoint = '?';
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bytes_remaining = 0;
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}
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/* If we need more bytes, wait for more bytes */
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if (bytes_remaining != 0)
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return 0;
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switch (codepoint) {
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/* Enquiry */
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case 0x05:
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guac_terminal_send_string(term, GUAC_TERMINAL_ANSWERBACK);
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break;
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/* Bell */
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case 0x07:
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break;
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/* Backspace */
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case 0x08:
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if (term->cursor_col >= 1)
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term->cursor_col--;
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break;
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/* Tab */
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case 0x09:
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term->cursor_col = guac_terminal_next_tab(term, term->cursor_col);
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break;
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/* Line feed / VT / FF */
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case '\n':
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case 0x0B: /* VT */
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case 0x0C: /* FF */
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term->cursor_row++;
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/* Scroll up if necessary */
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if (term->cursor_row > term->scroll_end) {
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term->cursor_row = term->scroll_end;
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/* Scroll up by one row */
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guac_terminal_scroll_up(term, term->scroll_start,
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term->scroll_end, 1);
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}
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/* If automatic carriage return, fall through to CR handler */
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if (!term->automatic_carriage_return)
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break;
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/* Carriage return */
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case '\r':
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term->cursor_col = 0;
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break;
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/* SO (activates character set G1) */
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case 0x0E:
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term->active_char_set = 1;
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break;
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/* SI (activates character set G0) */
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case 0x0F:
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term->active_char_set = 0;
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break;
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/* ESC */
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case 0x1B:
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term->char_handler = guac_terminal_escape;
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break;
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/* CSI */
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case 0x9B:
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term->char_handler = guac_terminal_csi;
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break;
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/* DEL (ignored) */
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case 0x7F:
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break;
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/* Displayable chars */
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default:
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/* Don't bother handling control chars if unknown */
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if (codepoint < 0x20)
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break;
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/* Translate mappable codepoints to whatever codepoint is mapped */
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if (codepoint >= 0x20 && codepoint <= 0xFF && char_mapping != NULL)
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codepoint = char_mapping[codepoint - 0x20];
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/* Wrap if necessary */
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if (term->cursor_col >= term->term_width) {
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term->cursor_col = 0;
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term->cursor_row++;
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}
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/* Scroll up if necessary */
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if (term->cursor_row > term->scroll_end) {
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term->cursor_row = term->scroll_end;
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/* Scroll up by one row */
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guac_terminal_scroll_up(term, term->scroll_start,
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term->scroll_end, 1);
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}
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/* If insert mode, shift other characters right by 1 */
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if (term->insert_mode)
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guac_terminal_copy_columns(term, term->cursor_row,
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term->cursor_col, term->term_width-2, 1);
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/* Write character */
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guac_terminal_set(term,
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term->cursor_row,
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term->cursor_col,
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codepoint);
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/* Advance cursor */
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term->cursor_col++;
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}
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return 0;
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}
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int guac_terminal_escape(guac_terminal* term, char c) {
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switch (c) {
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case '(':
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term->char_handler = guac_terminal_g0_charset;
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break;
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case ')':
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term->char_handler = guac_terminal_g1_charset;
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break;
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case ']':
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term->char_handler = guac_terminal_osc;
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break;
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case '[':
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term->char_handler = guac_terminal_csi;
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break;
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case '#':
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term->char_handler = guac_terminal_ctrl_func;
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break;
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/* Save Cursor (DECSC) */
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case '7':
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term->saved_cursor_row = term->cursor_row;
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term->saved_cursor_col = term->cursor_col;
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term->char_handler = guac_terminal_echo;
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break;
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/* Restore Cursor (DECRC) */
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case '8':
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term->cursor_row = term->saved_cursor_row;
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if (term->cursor_row >= term->term_height)
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term->cursor_row = term->term_height - 1;
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term->cursor_col = term->saved_cursor_col;
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if (term->cursor_col >= term->term_width)
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term->cursor_col = term->term_width - 1;
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term->char_handler = guac_terminal_echo;
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break;
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/* Index (IND) */
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case 'D':
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term->cursor_row++;
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/* Scroll up if necessary */
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if (term->cursor_row > term->scroll_end) {
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term->cursor_row = term->scroll_end;
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/* Scroll up by one row */
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guac_terminal_scroll_up(term, term->scroll_start,
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term->scroll_end, 1);
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}
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term->char_handler = guac_terminal_echo;
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break;
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/* Next Line (NEL) */
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case 'E':
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term->cursor_col = 0;
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term->cursor_row++;
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/* Scroll up if necessary */
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if (term->cursor_row > term->scroll_end) {
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term->cursor_row = term->scroll_end;
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/* Scroll up by one row */
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guac_terminal_scroll_up(term, term->scroll_start,
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term->scroll_end, 1);
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}
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term->char_handler = guac_terminal_echo;
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break;
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/* Set Tab (HTS) */
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case 'H':
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guac_terminal_set_tab(term, term->cursor_col);
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break;
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/* Reverse Linefeed */
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case 'M':
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term->cursor_row--;
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/* Scroll down if necessary */
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if (term->cursor_row < term->scroll_start) {
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term->cursor_row = term->scroll_start;
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/* Scroll down by one row */
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guac_terminal_scroll_down(term, term->scroll_start,
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term->scroll_end, 1);
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}
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term->char_handler = guac_terminal_echo;
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break;
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/* DEC Identify */
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case 'Z':
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guac_terminal_send_string(term, GUAC_TERMINAL_VT102_ID);
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term->char_handler = guac_terminal_echo;
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break;
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/* Reset */
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case 'c':
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guac_terminal_reset(term);
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break;
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default:
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guac_client_log_info(term->client, "Unhandled ESC sequence: %c", c);
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term->char_handler = guac_terminal_echo;
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}
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return 0;
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}
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/**
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* Given a character mapping specifier (such as B, 0, U, or K),
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* returns the corresponding character mapping.
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*/
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static const int* __guac_terminal_get_char_mapping(char c) {
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/* Translate character specifier to actual mapping */
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switch (c) {
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case 'B': return NULL;
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case '0': return vt100_map;
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case 'U': return null_map;
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case 'K': return user_map;
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}
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/* Default to Unicode */
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return NULL;
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}
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int guac_terminal_g0_charset(guac_terminal* term, char c) {
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term->char_mapping[0] = __guac_terminal_get_char_mapping(c);
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term->char_handler = guac_terminal_echo;
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return 0;
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}
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int guac_terminal_g1_charset(guac_terminal* term, char c) {
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term->char_mapping[1] = __guac_terminal_get_char_mapping(c);
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term->char_handler = guac_terminal_echo;
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return 0;
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}
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/**
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* Looks up the flag specified by the given number and mode. Used by the Set/Reset Mode
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* functions of the terminal.
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*/
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static bool* __guac_terminal_get_flag(guac_terminal* term, int num, char private_mode) {
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if (private_mode == '?') {
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switch (num) {
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case 1: return &(term->application_cursor_keys); /* DECCKM */
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}
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}
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else if (private_mode == 0) {
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switch (num) {
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case 4: return &(term->insert_mode); /* DECIM */
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case 20: return &(term->automatic_carriage_return); /* LF/NL */
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}
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}
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/* Unknown flag */
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return NULL;
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}
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int guac_terminal_csi(guac_terminal* term, char c) {
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/* CSI function arguments */
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static int argc = 0;
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static int argv[16] = {0};
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/* Sequence prefix, if any */
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static char private_mode_character = 0;
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/* Argument building counter and buffer */
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static int argv_length = 0;
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static char argv_buffer[256];
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/* Digits get concatenated into argv */
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if (c >= '0' && c <= '9') {
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/* Concatenate digit if there is space in buffer */
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if (argv_length < sizeof(argv_buffer)-1)
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argv_buffer[argv_length++] = c;
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}
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/* Specific non-digits stop the parameter, and possibly the sequence */
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else if ((c >= 0x40 && c <= 0x7E) || c == ';') {
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int i, row, col, amount;
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bool* flag;
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/* At most 16 parameters */
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if (argc < 16) {
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/* Finish parameter */
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argv_buffer[argv_length] = 0;
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argv[argc++] = atoi(argv_buffer);
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/* Prepare for next parameter */
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argv_length = 0;
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}
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/* Handle CSI functions */
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switch (c) {
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/* @: Insert characters (scroll right) */
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case '@':
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Scroll right by amount */
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if (term->cursor_col + amount < term->term_width)
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guac_terminal_copy_columns(term, term->cursor_row,
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term->cursor_col, term->term_width - amount - 1,
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amount);
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/* Clear left */
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guac_terminal_clear_columns(term, term->cursor_row,
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term->cursor_col, term->cursor_col + amount - 1);
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break;
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/* A: Move up */
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case 'A':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_row -= amount;
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if (term->cursor_row < 0)
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term->cursor_row = 0;
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break;
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/* B: Move down */
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case 'e':
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case 'B':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_row += amount;
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if (term->cursor_row >= term->term_height)
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term->cursor_row = term->term_height - 1;
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break;
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/* C: Move right */
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case 'a':
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case 'C':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_col += amount;
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if (term->cursor_col >= term->term_width)
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term->cursor_col = term->term_width - 1;
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break;
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/* D: Move left */
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case 'D':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_col -= amount;
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if (term->cursor_col < 0)
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term->cursor_col = 0;
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break;
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/* E: Move cursor down given number rows, column 1 */
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case 'E':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_row += amount;
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if (term->cursor_row >= term->term_height)
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term->cursor_row = term->term_height - 1;
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/* Reset to column 1 */
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term->cursor_col = 0;
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break;
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/* F: Move cursor up given number rows, column 1 */
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case 'F':
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/* Get move amount */
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amount = argv[0];
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if (amount == 0) amount = 1;
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/* Move cursor */
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term->cursor_row -= amount;
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if (term->cursor_row < 0)
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term->cursor_row = 0;
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/* Reset to column 1 */
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term->cursor_col = 0;
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break;
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/* G: Move cursor, current row */
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case '`':
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case 'G':
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col = argv[0]; if (col != 0) col--;
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term->cursor_col = col;
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break;
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/* H: Move cursor */
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case 'f':
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case 'H':
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row = argv[0]; if (row != 0) row--;
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col = argv[1]; if (col != 0) col--;
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term->cursor_row = row;
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term->cursor_col = col;
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break;
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/* J: Erase display */
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case 'J':
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/* Erase from cursor to end of display */
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if (argv[0] == 0)
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guac_terminal_clear_range(term,
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term->cursor_row, term->cursor_col,
|
|
term->term_height-1, term->term_width-1);
|
|
|
|
/* Erase from start to cursor */
|
|
else if (argv[0] == 1)
|
|
guac_terminal_clear_range(term,
|
|
0, 0,
|
|
term->cursor_row, term->cursor_col);
|
|
|
|
/* Entire screen */
|
|
else if (argv[0] == 2 || argv[0] == 3)
|
|
guac_terminal_clear_range(term,
|
|
0, 0, term->term_height - 1, term->term_width - 1);
|
|
|
|
break;
|
|
|
|
/* K: Erase line */
|
|
case 'K':
|
|
|
|
/* Erase from cursor to end of line */
|
|
if (argv[0] == 0)
|
|
guac_terminal_clear_columns(term, term->cursor_row,
|
|
term->cursor_col, term->term_width - 1);
|
|
|
|
/* Erase from start to cursor */
|
|
else if (argv[0] == 1)
|
|
guac_terminal_clear_columns(term, term->cursor_row,
|
|
0, term->cursor_col);
|
|
|
|
/* Erase line */
|
|
else if (argv[0] == 2)
|
|
guac_terminal_clear_columns(term, term->cursor_row,
|
|
0, term->term_width - 1);
|
|
|
|
break;
|
|
|
|
/* L: Insert blank lines (scroll down) */
|
|
case 'L':
|
|
|
|
amount = argv[0];
|
|
if (amount == 0) amount = 1;
|
|
|
|
guac_terminal_scroll_down(term,
|
|
term->cursor_row, term->scroll_end, amount);
|
|
|
|
break;
|
|
|
|
/* M: Delete lines (scroll up) */
|
|
case 'M':
|
|
|
|
amount = argv[0];
|
|
if (amount == 0) amount = 1;
|
|
|
|
guac_terminal_scroll_up(term,
|
|
term->cursor_row, term->scroll_end, amount);
|
|
|
|
break;
|
|
|
|
/* P: Delete characters (scroll left) */
|
|
case 'P':
|
|
|
|
amount = argv[0];
|
|
if (amount == 0) amount = 1;
|
|
|
|
/* Scroll left by amount */
|
|
if (term->cursor_col + amount < term->term_width)
|
|
guac_terminal_copy_columns(term, term->cursor_row,
|
|
term->cursor_col + amount, term->term_width - 1,
|
|
-amount);
|
|
|
|
/* Clear right */
|
|
guac_terminal_clear_columns(term, term->cursor_row,
|
|
term->term_width - amount, term->term_width - 1);
|
|
|
|
break;
|
|
|
|
/* X: Erase characters (no scroll) */
|
|
case 'X':
|
|
|
|
amount = argv[0];
|
|
if (amount == 0) amount = 1;
|
|
|
|
/* Clear characters */
|
|
guac_terminal_clear_columns(term, term->cursor_row,
|
|
term->cursor_col, term->cursor_col + amount - 1);
|
|
|
|
break;
|
|
|
|
/* ]: Linux Private CSI */
|
|
case ']':
|
|
/* Explicitly ignored */
|
|
break;
|
|
|
|
/* c: Identify */
|
|
case 'c':
|
|
if (argv[0] == 0 && private_mode_character == 0)
|
|
guac_terminal_send_string(term, GUAC_TERMINAL_VT102_ID);
|
|
break;
|
|
|
|
/* d: Move cursor, current col */
|
|
case 'd':
|
|
row = argv[0]; if (row != 0) row--;
|
|
term->cursor_row = row;
|
|
break;
|
|
|
|
/* g: Clear tab */
|
|
case 'g':
|
|
|
|
/* Clear tab at current location */
|
|
if (argv[0] == 0)
|
|
guac_terminal_unset_tab(term, term->cursor_col);
|
|
|
|
/* Clear all tabs */
|
|
else if (argv[0] == 3)
|
|
guac_terminal_clear_tabs(term);
|
|
|
|
break;
|
|
|
|
/* h: Set Mode */
|
|
case 'h':
|
|
|
|
/* Look up flag and set */
|
|
flag = __guac_terminal_get_flag(term, argv[0], private_mode_character);
|
|
if (flag != NULL)
|
|
*flag = true;
|
|
|
|
break;
|
|
|
|
/* l: Reset Mode */
|
|
case 'l':
|
|
|
|
/* Look up flag and clear */
|
|
flag = __guac_terminal_get_flag(term, argv[0], private_mode_character);
|
|
if (flag != NULL)
|
|
*flag = false;
|
|
|
|
break;
|
|
|
|
/* m: Set graphics rendition */
|
|
case 'm':
|
|
|
|
for (i=0; i<argc; i++) {
|
|
|
|
int value = argv[i];
|
|
|
|
/* Reset attributes */
|
|
if (value == 0)
|
|
term->current_attributes = term->default_char.attributes;
|
|
|
|
/* Bold */
|
|
else if (value == 1)
|
|
term->current_attributes.bold = true;
|
|
|
|
/* Underscore on */
|
|
else if (value == 4)
|
|
term->current_attributes.underscore = true;
|
|
|
|
/* Reverse video */
|
|
else if (value == 7)
|
|
term->current_attributes.reverse = true;
|
|
|
|
/* Normal intensity (not bold) */
|
|
else if (value == 21 || value == 22)
|
|
term->current_attributes.bold = false;
|
|
|
|
/* Reset underscore */
|
|
else if (value == 24)
|
|
term->current_attributes.underscore = false;
|
|
|
|
/* Reset reverse video */
|
|
else if (value == 27)
|
|
term->current_attributes.reverse = false;
|
|
|
|
/* Foreground */
|
|
else if (value >= 30 && value <= 37)
|
|
term->current_attributes.foreground = value - 30;
|
|
|
|
/* Underscore on, default foreground */
|
|
else if (value == 38) {
|
|
term->current_attributes.underscore = true;
|
|
term->current_attributes.foreground =
|
|
term->default_char.attributes.foreground;
|
|
}
|
|
|
|
/* Underscore off, default foreground */
|
|
else if (value == 39) {
|
|
term->current_attributes.underscore = false;
|
|
term->current_attributes.foreground =
|
|
term->default_char.attributes.foreground;
|
|
}
|
|
|
|
/* Background */
|
|
else if (value >= 40 && value <= 47)
|
|
term->current_attributes.background = value - 40;
|
|
|
|
/* Reset background */
|
|
else if (value == 49)
|
|
term->current_attributes.background =
|
|
term->default_char.attributes.background;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
/* n: Status report */
|
|
case 'n':
|
|
|
|
/* Device status report */
|
|
if (argv[0] == 5 && private_mode_character == 0)
|
|
guac_terminal_send_string(term, GUAC_TERMINAL_OK);
|
|
|
|
/* Cursor position report */
|
|
else if (argv[0] == 6 && private_mode_character == 0)
|
|
guac_terminal_sendf(term, "\x1B[%i;%iR", term->cursor_row+1, term->cursor_col+1);
|
|
|
|
break;
|
|
|
|
/* q: Set keyboard LEDs */
|
|
case 'q':
|
|
/* Explicitly ignored */
|
|
break;
|
|
|
|
/* r: Set scrolling region */
|
|
case 'r':
|
|
|
|
/* If parameters given, set region */
|
|
if (argc == 2) {
|
|
term->scroll_start = argv[0]-1;
|
|
term->scroll_end = argv[1]-1;
|
|
}
|
|
|
|
/* Otherwise, reset scrolling region */
|
|
else {
|
|
term->scroll_start = 0;
|
|
term->scroll_end = term->term_height - 1;
|
|
}
|
|
|
|
break;
|
|
|
|
/* Save Cursor */
|
|
case 's':
|
|
term->saved_cursor_row = term->cursor_row;
|
|
term->saved_cursor_col = term->cursor_col;
|
|
break;
|
|
|
|
/* Restore Cursor */
|
|
case 'u':
|
|
|
|
term->cursor_row = term->saved_cursor_row;
|
|
if (term->cursor_row >= term->term_height)
|
|
term->cursor_row = term->term_height - 1;
|
|
|
|
term->cursor_col = term->saved_cursor_col;
|
|
if (term->cursor_col >= term->term_width)
|
|
term->cursor_col = term->term_width - 1;
|
|
|
|
break;
|
|
|
|
|
|
/* Warn of unhandled codes */
|
|
default:
|
|
if (c != ';') {
|
|
|
|
guac_client_log_info(term->client,
|
|
"Unhandled CSI sequence: %c", c);
|
|
|
|
for (i=0; i<argc; i++)
|
|
guac_client_log_info(term->client,
|
|
" -> argv[%i] = %i", i, argv[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/* If not a semicolon, end of CSI sequence */
|
|
if (c != ';') {
|
|
term->char_handler = guac_terminal_echo;
|
|
|
|
/* Reset parameters */
|
|
for (i=0; i<argc; i++)
|
|
argv[i] = 0;
|
|
|
|
/* Reset private mode character */
|
|
private_mode_character = 0;
|
|
|
|
/* Reset argument counters */
|
|
argc = 0;
|
|
argv_length = 0;
|
|
}
|
|
|
|
}
|
|
|
|
/* Set private mode character if given and unset */
|
|
else if (c >= 0x3A && c <= 0x3F && private_mode_character == 0)
|
|
private_mode_character = c;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
int guac_terminal_guac_set_directory(guac_terminal* term, char c) {
|
|
|
|
static char filename[2048];
|
|
static int length = 0;
|
|
|
|
/* Stop on ECMA-48 ST (String Terminator */
|
|
if (c == 0x9C || c == 0x5C || c == 0x07) {
|
|
filename[length++] = '\0';
|
|
term->char_handler = guac_terminal_echo;
|
|
guac_sftp_set_upload_path(term->client, filename);
|
|
length = 0;
|
|
}
|
|
|
|
/* Otherwise, store character */
|
|
else if (length < sizeof(filename)-1)
|
|
filename[length++] = c;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
int guac_terminal_guac_download(guac_terminal* term, char c) {
|
|
|
|
static char filename[2048];
|
|
static int length = 0;
|
|
|
|
/* Stop on ECMA-48 ST (String Terminator */
|
|
if (c == 0x9C || c == 0x5C || c == 0x07) {
|
|
filename[length++] = '\0';
|
|
term->char_handler = guac_terminal_echo;
|
|
guac_sftp_download_file(term->client, filename);
|
|
length = 0;
|
|
}
|
|
|
|
/* Otherwise, store character */
|
|
else if (length < sizeof(filename)-1)
|
|
filename[length++] = c;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
int guac_terminal_osc(guac_terminal* term, char c) {
|
|
|
|
static int operation = 0;
|
|
|
|
/* If digit, append to operation */
|
|
if (c >= '0' && c <= '9')
|
|
operation = operation * 10 + c - '0';
|
|
|
|
/* If end of parameter, check value */
|
|
else if (c == ';') {
|
|
|
|
/* Download OSC */
|
|
if (operation == 482200)
|
|
term->char_handler = guac_terminal_guac_download;
|
|
|
|
/* Set upload directory OSC */
|
|
else if (operation == 482201)
|
|
term->char_handler = guac_terminal_guac_set_directory;
|
|
|
|
/* Reset parameter for next OSC */
|
|
operation = 0;
|
|
|
|
}
|
|
|
|
/* Stop on ECMA-48 ST (String Terminator */
|
|
else if (c == 0x9C || c == 0x5C || c == 0x07)
|
|
term->char_handler = guac_terminal_echo;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int guac_terminal_ctrl_func(guac_terminal* term, char c) {
|
|
|
|
int row;
|
|
|
|
/* Build character with current attributes */
|
|
guac_terminal_char guac_char;
|
|
guac_char.value = 'E';
|
|
guac_char.attributes = term->current_attributes;
|
|
|
|
switch (c) {
|
|
|
|
/* Alignment test (fill screen with E's) */
|
|
case '8':
|
|
|
|
for (row=0; row<term->term_height; row++)
|
|
guac_terminal_set_columns(term, row, 0, term->term_width-1, &guac_char);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
term->char_handler = guac_terminal_echo;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|