Add console_init udev helper.

This helper:
- sets the keyboard mode
- sets the console mode
- sets the console font
- sets the keyboard map

based on configuration in /etc/sysconfig/keyboard and
/etc/sysconfig/i18n. This allows us to remove various cruft from
rc.sysinit and /etc/profile.d/lang.sh.

1 files changed, 159 insertions, 0 deletions

diff --git a/src/console_init.c b/src/console_init.c
new file mode 100644
index 00000000..ddab86c8
--- /dev/null
+++ b/src/console_init.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) 2008 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 <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 *keymap = 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");
+        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() {
+	shvarFile *keyboard = NULL;
+	char *tmp;
+	struct stat sb;
+	
+	if (!stat("/etc/sysconfig/console/default.kmap",&sb)) {
+		keymap = "/etc/sysconfig/console/default.kmap";
+		return 0;
+	}
+
+	if ((keyboard = svNewFile("/etc/sysconfig/keyboard")) == NULL)
+		return 0;
+
+	tmp = svGetValue(keyboard, "KEYMAP");
+	if (tmp)
+		keymap = tmp;
+	tmp = svGetValue(keyboard, "KEYTABLE");
+	if (tmp) {
+		if (keymap) free(keymap);
+		asprintf(&keymap, "%s.map", tmp);
+	}
+	return 0;
+}
+
+static void set_font(int fd) {
+	int pid, status;
+	
+	if ( (pid = fork()) == 0) {
+		char *args[] = { "setfont", "latarcyrheb-sun16", NULL, NULL, NULL };
+
+		if (font)
+			args[1] = font;
+		if (acm) {
+			args[2] = "-u";
+			args[3] = acm;
+		}
+		execv("/bin/setfont", args);
+		exit(1);
+	}
+	waitpid(pid, &status, 0);
+}
+
+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, status;
+	
+	if ((pid = fork()) == 0) {
+		char *args[] = { "loadkeys", NULL, NULL, NULL };
+		dup2(fd, 0);
+		dup2(fd, 1);
+		
+		if (utf8) {
+			args[1] = "-u";
+			args[2] = keymap;
+		} else {
+			args[1] = keymap;
+		}
+		execv("/bin/loadkeys", args);
+		exit(1);
+	}
+	waitpid(pid, &status, 0);
+}
+
+int main(int argc, char **argv) {
+	char *device;
+	int dev;
+
+	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(dev);
+		read_keymap();
+		if (keymap)
+			set_keymap(dev,utf8);
+	}
+	return 0;
+}