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/*
* Copyright (c) 2008-2009 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
*/
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <linux/kd.h>
#include "shvar.h"
static char *lang = NULL;
static char *font = NULL;
static char *acm = NULL;
static char *unimap = NULL;
static char *keymap = NULL;
static char *unikeytable = NULL;
static char *backspace = NULL;
static char *grp_toggle = NULL;
static int linux_console(int fd) {
unsigned char twelve = 12;
if (ioctl(fd, TIOCLINUX, &twelve) >= 0)
return 1;
return 0;
}
static int configured_as_utf8() {
shvarFile *i18nfile = NULL;
if ((i18nfile = svNewFile("/etc/sysconfig/i18n")) == NULL)
return 1; /* assume UTF-8 */
lang = svGetValue(i18nfile, "LANG");
font = svGetValue(i18nfile, "SYSFONT");
acm = svGetValue(i18nfile, "SYSFONTACM");
unimap = svGetValue(i18nfile, "UNIMAP");
svCloseFile(i18nfile);
if (!lang)
return 1;
if (g_str_has_suffix(lang,".utf8") || g_str_has_suffix(lang,".UTF-8"))
return 1;
return 0;
}
static int read_keymap(int utf8) {
shvarFile *keyboard = NULL;
char *tmp;
struct stat sb;
if (!stat("/etc/sysconfig/console/default.kmap",&sb)) {
keymap = "/etc/sysconfig/console/default.kmap";
}
if ((keyboard = svNewFile("/etc/sysconfig/keyboard")) == NULL)
return 0;
tmp = svGetValue(keyboard, "BACKSPACE");
if (tmp)
backspace = tmp;
tmp = svGetValue(keyboard, "GRP_TOGGLE");
if (tmp)
grp_toggle = tmp;
if (keymap)
return 0;
tmp = svGetValue(keyboard, "KEYMAP");
if (tmp)
keymap = tmp;
tmp = svGetValue(keyboard, "UNIKEYTABLE");
if (tmp)
unikeytable = tmp;
tmp = svGetValue(keyboard, "KEYTABLE");
if (tmp) {
if (keymap) free(keymap);
keymap = NULL;
if (utf8) {
if (g_str_has_suffix (tmp, "uni") || strstr(tmp,".uni."))
unikeytable = tmp;
else {
char * substring;
if ((substring = strstr(tmp, ".map"))) {
GString *new_string;
new_string = g_string_new_len (tmp, strlen(tmp)+4);
new_string = g_string_insert_len(new_string, substring-tmp,".uni",4);
unikeytable = g_string_free (new_string, FALSE);
}
else {
free (unikeytable);
asprintf (&unikeytable, "%s.uni", tmp);
}
}
}
asprintf(&keymap, "%s.map", tmp);
}
return 0;
}
static void set_font(char *device) {
int pid;
if ( (pid = fork()) == 0) {
char *args[] = { "setfont", "latarcyrheb-sun16", "-C", NULL,
NULL, NULL, NULL, NULL, NULL };
if (font)
args[1] = font;
args[3] = device;
if (acm) {
args[4] = "-m";
args[5] = acm;
if (unimap) {
args[6] = "-u";
args[7] = unimap;
}
} else if (unimap) {
args[4] = "-u";
args[5] = unimap;
}
execv("/bin/setfont", args);
exit(1);
}
}
static void set_keyboard(int fd, int utf8) {
if (ioctl(fd, KDSKBMODE, utf8 ? K_UNICODE : K_XLATE))
perror("could not set keyboard mode");
}
static void set_terminal(int fd, int utf8) {
if (utf8)
write(fd, "\033%G", 3);
else
write(fd, "\033%@", 3);
}
static void set_keymap(int fd, int utf8) {
int pid;
int status;
if ((pid = fork()) == 0) {
char *args[] = { "/bin/loadkeys", "-q", NULL, NULL, NULL };
dup2(fd, 0);
dup2(fd, 1);
if (utf8) {
if (unikeytable) {
args[2] = unikeytable;
if (g_spawn_sync (NULL, args, NULL, G_SPAWN_CHILD_INHERITS_STDIN , NULL, NULL, NULL, NULL, NULL, NULL))
exit(0);
}
args[2] = "-u";
args[3] = keymap;
} else {
args[2] = keymap;
}
execv("/bin/loadkeys", args);
exit(1);
}
waitpid(pid, &status, 0);
}
static void set_backspace(int fd) {
int pid;
int status;
if ((pid = fork()) == 0) {
char *args[] = { "/bin/loadkeys", "-q", NULL, NULL };
dup2(fd, 0);
dup2(fd, 1);
if (backspace && g_ascii_strcasecmp (backspace, "BackSpace")) {
args[2] = "backspace";
} else {
args[2] = "delete";
}
execv("/bin/loadkeys", args);
exit(1);
}
waitpid(pid, &status, 0);
}
static void set_grp_toggle(int fd) {
int pid;
int status;
if ((pid = fork()) == 0) {
char *args[] = { "/bin/loadkeys", "-q", NULL, NULL };
dup2(fd, 0);
dup2(fd, 1);
args[2] = grp_toggle;
execv("/bin/loadkeys", args);
exit(1);
}
waitpid(pid, &status, 0);
}
int main(int argc, char **argv) {
char *device;
int dev;
struct stat sb;
if (argc < 2) {
printf("usage: console_init <device>\n");
exit(1);
}
chdir("/dev");
device = argv[1];
dev = open(device, O_RDWR);
if (linux_console(dev)) {
int utf8 = configured_as_utf8();
set_keyboard(dev, utf8);
set_terminal(dev, utf8);
set_font(device);
read_keymap(utf8);
if (keymap || unikeytable)
set_keymap(dev,utf8);
set_backspace(dev);
if (grp_toggle)
set_grp_toggle(dev);
}
/* check if /usr is mounted */
return stat("/usr/bin",&sb) != 0;
}
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