2010-09-16 00:36:41 +02:00
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Kay Sievers
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systemd is free software; you can redistribute it and/or modify it
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2012-04-12 00:20:58 +02:00
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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2010-09-16 00:36:41 +02:00
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2012-04-12 00:20:58 +02:00
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Lesser General Public License for more details.
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2010-09-16 00:36:41 +02:00
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2012-04-12 00:20:58 +02:00
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You should have received a copy of the GNU Lesser General Public License
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2010-09-16 00:36:41 +02:00
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <limits.h>
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#include <linux/tiocl.h>
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#include <linux/kd.h>
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2013-01-15 02:25:56 +01:00
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#include <linux/vt.h>
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2010-09-16 00:36:41 +02:00
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#include "util.h"
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#include "log.h"
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#include "macro.h"
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2011-09-23 17:00:33 +02:00
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#include "virt.h"
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2010-09-16 00:36:41 +02:00
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2010-09-21 03:16:28 +02:00
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static bool is_vconsole(int fd) {
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2010-09-16 00:36:41 +02:00
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unsigned char data[1];
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data[0] = TIOCL_GETFGCONSOLE;
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return ioctl(fd, TIOCLINUX, data) >= 0;
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}
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static int disable_utf8(int fd) {
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int r = 0, k;
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if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
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r = -errno;
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if (loop_write(fd, "\033%@", 3, false) < 0)
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r = -errno;
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2012-05-03 15:10:09 +02:00
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k = write_one_line_file("/sys/module/vt/parameters/default_utf8", "0");
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if (k < 0)
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2010-09-16 00:36:41 +02:00
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r = k;
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if (r < 0)
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2012-05-03 15:10:09 +02:00
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log_warning("Failed to disable UTF-8: %s", strerror(-r));
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2010-09-16 00:36:41 +02:00
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return r;
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}
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2012-06-10 20:37:14 +02:00
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static int enable_utf8(int fd) {
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int r = 0, k;
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2013-02-09 02:40:57 +01:00
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long current = 0;
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if (ioctl(fd, KDGKBMODE, ¤t) < 0 || current == K_XLATE) {
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/*
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* Change the current keyboard to unicode, unless it
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* is currently in raw or off mode anyway. We
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* shouldn't interfere with X11's processing of the
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* key events.
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*
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* http://lists.freedesktop.org/archives/systemd-devel/2013-February/008573.html
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*
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*/
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if (ioctl(fd, KDSKBMODE, K_UNICODE) < 0)
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r = -errno;
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}
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2012-06-10 20:37:14 +02:00
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if (loop_write(fd, "\033%G", 3, false) < 0)
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r = -errno;
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k = write_one_line_file("/sys/module/vt/parameters/default_utf8", "1");
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if (k < 0)
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r = k;
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if (r < 0)
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log_warning("Failed to enable UTF-8: %s", strerror(-r));
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return r;
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}
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2013-01-15 02:25:56 +01:00
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static int keymap_load(const char *vc, const char *map, const char *map_toggle, bool utf8, pid_t *_pid) {
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2010-11-06 17:11:03 +01:00
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const char *args[8];
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2010-09-16 00:36:41 +02:00
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int i = 0;
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pid_t pid;
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2011-04-20 04:30:08 +02:00
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if (isempty(map)) {
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/* An empty map means kernel map */
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*_pid = 0;
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return 0;
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}
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2010-09-21 00:07:09 +02:00
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args[i++] = KBD_LOADKEYS;
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2010-09-16 00:36:41 +02:00
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args[i++] = "-q";
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args[i++] = "-C";
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args[i++] = vc;
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if (utf8)
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args[i++] = "-u";
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args[i++] = map;
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2010-11-06 17:11:03 +01:00
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if (map_toggle)
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args[i++] = map_toggle;
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2010-09-16 00:36:41 +02:00
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args[i++] = NULL;
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2012-05-03 15:10:09 +02:00
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pid = fork();
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if (pid < 0) {
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2010-09-16 00:36:41 +02:00
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log_error("Failed to fork: %m");
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return -errno;
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} else if (pid == 0) {
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execv(args[0], (char **) args);
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_exit(EXIT_FAILURE);
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}
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*_pid = pid;
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return 0;
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}
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2013-01-15 02:25:56 +01:00
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static int font_load(const char *vc, const char *font, const char *map, const char *unimap, pid_t *_pid) {
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2010-09-16 00:36:41 +02:00
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const char *args[9];
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int i = 0;
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pid_t pid;
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2011-04-20 04:30:08 +02:00
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if (isempty(font)) {
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/* An empty font means kernel font */
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*_pid = 0;
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return 0;
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}
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2010-09-21 00:07:09 +02:00
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args[i++] = KBD_SETFONT;
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2010-09-16 00:36:41 +02:00
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args[i++] = "-C";
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args[i++] = vc;
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args[i++] = font;
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2010-09-28 23:41:09 +02:00
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if (map) {
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2010-09-16 00:36:41 +02:00
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args[i++] = "-m";
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args[i++] = map;
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}
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2010-09-28 23:41:09 +02:00
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if (unimap) {
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2010-09-16 00:36:41 +02:00
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args[i++] = "-u";
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args[i++] = unimap;
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}
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args[i++] = NULL;
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2012-05-03 15:10:09 +02:00
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pid = fork();
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if (pid < 0) {
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2010-09-16 00:36:41 +02:00
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log_error("Failed to fork: %m");
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return -errno;
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} else if (pid == 0) {
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execv(args[0], (char **) args);
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_exit(EXIT_FAILURE);
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}
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*_pid = pid;
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return 0;
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}
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2013-01-15 15:57:12 +01:00
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/*
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* A newly allocated VT uses the font from the active VT. Here
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* we update all possibly already allocated VTs with the configured
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* font. It also allows to restart systemd-vconsole-setup.service,
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* to apply a new font to all VTs.
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*/
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static void font_copy_to_all_vcs(int fd) {
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struct vt_stat vcs;
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2013-01-15 02:25:56 +01:00
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int i;
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int r;
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2013-01-15 15:57:12 +01:00
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/* get active, and 16 bit mask of used VT numbers */
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zero(vcs);
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r = ioctl(fd, VT_GETSTATE, &vcs);
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2013-01-15 02:25:56 +01:00
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if (r < 0)
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return;
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2013-01-15 15:57:12 +01:00
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for (i = 1; i <= 15; i++) {
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char vcname[16];
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int vcfd;
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2013-01-15 02:25:56 +01:00
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struct console_font_op cfo;
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2013-01-15 15:57:12 +01:00
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if (i == vcs.v_active)
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2013-01-15 02:25:56 +01:00
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continue;
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2013-01-15 20:32:57 +01:00
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/* skip non-allocated ttys */
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snprintf(vcname, sizeof(vcname), "/dev/vcs%i", i);
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if (access(vcname, F_OK) < 0)
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2013-01-15 02:25:56 +01:00
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continue;
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2013-01-15 20:32:57 +01:00
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snprintf(vcname, sizeof(vcname), "/dev/tty%i", i);
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2013-01-15 15:57:12 +01:00
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vcfd = open_terminal(vcname, O_RDWR|O_CLOEXEC);
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if (vcfd < 0)
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2013-01-15 02:25:56 +01:00
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continue;
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2013-01-15 15:57:12 +01:00
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/* copy font from active VT, where the font was uploaded to */
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2013-01-15 02:25:56 +01:00
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zero(cfo);
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cfo.op = KD_FONT_OP_COPY;
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2013-01-15 15:57:12 +01:00
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cfo.height = vcs.v_active-1; /* tty1 == index 0 */
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ioctl(vcfd, KDFONTOP, &cfo);
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2013-01-15 02:25:56 +01:00
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2013-01-15 15:57:12 +01:00
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close_nointr_nofail(vcfd);
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2013-01-15 02:25:56 +01:00
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}
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}
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2010-09-16 00:36:41 +02:00
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int main(int argc, char **argv) {
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const char *vc;
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char *vc_keymap = NULL;
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2010-11-06 17:11:03 +01:00
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char *vc_keymap_toggle = NULL;
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2010-09-16 00:36:41 +02:00
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char *vc_font = NULL;
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char *vc_font_map = NULL;
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char *vc_font_unimap = NULL;
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int fd = -1;
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bool utf8;
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pid_t font_pid = 0, keymap_pid = 0;
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2013-01-15 15:57:12 +01:00
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bool font_copy = false;
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2013-01-15 02:25:56 +01:00
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int r = EXIT_FAILURE;
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2010-09-16 00:36:41 +02:00
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2011-04-20 04:30:08 +02:00
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log_set_target(LOG_TARGET_AUTO);
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2010-09-16 00:36:41 +02:00
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log_parse_environment();
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log_open();
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2011-08-01 20:52:18 +02:00
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umask(0022);
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2010-09-16 00:36:41 +02:00
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if (argv[1])
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vc = argv[1];
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2013-01-15 02:25:56 +01:00
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else {
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2013-01-15 15:57:12 +01:00
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vc = "/dev/tty0";
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font_copy = true;
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2013-01-15 02:25:56 +01:00
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}
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2010-09-16 00:36:41 +02:00
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2012-05-03 15:10:09 +02:00
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fd = open_terminal(vc, O_RDWR|O_CLOEXEC);
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if (fd < 0) {
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2010-09-16 00:36:41 +02:00
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log_error("Failed to open %s: %m", vc);
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goto finish;
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}
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2010-09-21 03:16:28 +02:00
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if (!is_vconsole(fd)) {
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2010-09-16 00:36:41 +02:00
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log_error("Device %s is not a virtual console.", vc);
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goto finish;
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}
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2010-09-21 03:16:28 +02:00
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utf8 = is_locale_utf8();
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2010-09-16 00:36:41 +02:00
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2011-04-20 04:30:08 +02:00
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r = 0;
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2012-05-03 15:10:09 +02:00
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if (detect_container(NULL) <= 0) {
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r = parse_env_file("/proc/cmdline", WHITESPACE,
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"vconsole.keymap", &vc_keymap,
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"vconsole.keymap.toggle", &vc_keymap_toggle,
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"vconsole.font", &vc_font,
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"vconsole.font.map", &vc_font_map,
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"vconsole.font.unimap", &vc_font_unimap,
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NULL);
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if (r < 0 && r != -ENOENT)
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log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
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}
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2010-09-16 01:58:16 +02:00
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2010-09-21 03:16:28 +02:00
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/* Hmm, nothing set on the kernel cmd line? Then let's
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2010-09-28 11:51:24 +02:00
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* try /etc/vconsole.conf */
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2012-05-03 15:10:09 +02:00
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if (r <= 0) {
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r = parse_env_file("/etc/vconsole.conf", NEWLINE,
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"KEYMAP", &vc_keymap,
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"KEYMAP_TOGGLE", &vc_keymap_toggle,
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"FONT", &vc_font,
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"FONT_MAP", &vc_font_map,
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"FONT_UNIMAP", &vc_font_unimap,
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NULL);
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if (r < 0 && r != -ENOENT)
|
2010-09-28 11:51:24 +02:00
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log_warning("Failed to read /etc/vconsole.conf: %s", strerror(-r));
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2010-09-16 01:58:16 +02:00
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}
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2010-09-18 01:19:46 +02:00
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|
2012-06-10 20:37:14 +02:00
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if (utf8)
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enable_utf8(fd);
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else
|
2010-09-21 03:16:28 +02:00
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disable_utf8(fd);
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|
2013-01-15 02:25:56 +01:00
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r = EXIT_FAILURE;
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if (keymap_load(vc, vc_keymap, vc_keymap_toggle, utf8, &keymap_pid) >= 0 &&
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font_load(vc, vc_font, vc_font_map, vc_font_unimap, &font_pid) >= 0)
|
2010-09-16 00:36:41 +02:00
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r = EXIT_SUCCESS;
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finish:
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if (keymap_pid > 0)
|
2010-09-21 00:07:09 +02:00
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wait_for_terminate_and_warn(KBD_LOADKEYS, keymap_pid);
|
2010-09-16 00:36:41 +02:00
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|
2013-01-15 02:25:56 +01:00
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if (font_pid > 0) {
|
2010-09-21 00:07:09 +02:00
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wait_for_terminate_and_warn(KBD_SETFONT, font_pid);
|
2013-01-15 15:57:12 +01:00
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if (font_copy)
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font_copy_to_all_vcs(fd);
|
2013-01-15 02:25:56 +01:00
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}
|
2010-09-16 00:36:41 +02:00
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free(vc_keymap);
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free(vc_font);
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free(vc_font_map);
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free(vc_font_unimap);
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|
|
|
|
|
|
|
if (fd >= 0)
|
|
|
|
close_nointr_nofail(fd);
|
|
|
|
|
|
|
|
return r;
|
|
|
|
}
|