freebsd-dev/usr.sbin/sade/system.c

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/*
* The new sysinstall program.
*
* This is probably the last program in the `sysinstall' line - the next
* generation being essentially a complete rewrite.
*
* $Id$
*
* Jordan Hubbard
*
* My contributions are in the public domain.
*
* Parts of this file are also blatently stolen from Poul-Henning Kamp's
* previous version of sysinstall, and as such fall under his "BEERWARE"
* license, so buy him a beer if you like it! Buy him a beer for me, too!
*/
#include "sysinstall.h"
#include <signal.h>
#include <sys/reboot.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
/* Handle interrupt signals (duh!) */
static void
handle_intr(int sig)
{
}
/* Welcome the user to the system */
void
systemWelcome(void)
{
}
/* Initialize system defaults */
void
systemInitialize(int argc, char **argv)
{
signal(SIGINT, SIG_IGN);
globalsInit();
/* Are we running as init? */
if (getpid() == 1) {
setsid();
if (argc > 1 && strchr(argv[1],'C')) {
/* Kernel told us that we are on a CDROM root */
close(0); open("/bootcd/dev/console", O_RDWR);
close(1); dup(0);
close(2); dup(0);
CpioFD = open("/floppies/cpio.flp", O_RDONLY);
OnCDROM = TRUE;
chroot("/bootcd");
} else {
close(0); open("/dev/console", O_RDWR);
close(1); dup(0);
close(2); dup(0);
}
msgInfo("%s running as init", argv[0]);
ioctl(0, TIOCSCTTY, (char *)NULL);
setlogin("root");
setbuf(stdin, 0);
setbuf(stdout, 0);
setbuf(stderr, 0);
}
if (set_termcap() == -1)
msgFatal("Can't find terminal entry");
/* XXX - libdialog has particularly bad return value checking */
init_dialog();
/* If we haven't crashed I guess dialog is running ! */
DialogActive = TRUE;
signal(SIGINT, handle_intr);
}
/* Close down and prepare to exit */
void
systemShutdown(void)
{
if (DialogActive) {
end_dialog();
DialogActive = FALSE;
}
/* REALLY exit! */
if (getpid() == 1)
reboot(RB_HALT);
}
int
systemExecute(char *command)
{
int status;
dialog_clear();
dialog_update();
end_dialog();
DialogActive = FALSE;
status = system(command);
DialogActive = TRUE;
dialog_clear();
dialog_update();
return status;
}