text: /*
   * The new sysinstall program.
   *
   * This is probably the last attempt in the `sysinstall' line, the next
   * generation being slated for what's essentially a complete rewrite.
   *
   * $FreeBSD: src/usr.sbin/sysinstall/main.c,v 1.73 2006/02/28 20:29:43 jhb Exp $
   *
   * Copyright (c) 1995
   *	Jordan Hubbard.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer,
   *    verbatim and that no modifications are made prior to this
   *    point in the file.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   */
  
  #include "sysinstall.h"
  #include <sys/signal.h>
  #include <sys/fcntl.h>
  
  const char *StartName;		/* Initial contents of argv[0] */
  
  static void
  screech(int sig)
  {
      msgDebug("\007Signal %d caught!  That's bad!\n", sig);
      longjmp(BailOut, sig);
  }
  
  int
  main(int argc, char **argv)
  {
      int choice, scroll, curr, max, status;
      
      /* Record name to be able to restart */
      StartName = argv[0];
  
      /* Catch fatal signals and complain about them if running as init */
      if (getpid() == 1) {
  	signal(SIGBUS, screech);
  	signal(SIGSEGV, screech);
      }
      signal(SIGPIPE, SIG_IGN);
  
      /* We don't work too well when running as non-root anymore */
      if (geteuid() != 0) {
  	fprintf(stderr, "Error: This utility should only be run as root.\n");
  	return 1;
      }
  
  #ifdef PC98
      {
  	/* XXX */
  	char *p = getenv("TERM");
  	if (p && strcmp(p, "cons25") == 0)
  	    putenv("TERM=cons25w");
      }
  #endif
  
      /* Set up whatever things need setting up */
      systemInitialize(argc, argv);
  
      /* Set default flag and variable values */
      installVarDefaults(NULL);
      /* only when multi-user is it reasonable to do this here */
      if (!RunningAsInit)
  	installEnvironment();
  
      if (argc > 1 && !strcmp(argv[1], "-fake")) {
  	variable_set2(VAR_DEBUG, "YES", 0);
  	Fake = TRUE;
  	msgConfirm("I'll be just faking it from here on out, OK?");
      }
      if (argc > 1 && !strcmp(argv[1], "-restart"))
  	Restarting = TRUE;
  
      /* Try to preserve our scroll-back buffer */
      if (OnVTY) {
  	for (curr = 0; curr < 25; curr++)
  	    putchar('\n');
      }
      /* Move stderr aside */
      if (DebugFD)
  	dup2(DebugFD, 2);
  
      /* Initialize driver modules, if we haven't already done so (ie,
         the user hit Ctrl-C -> Restart. */
      if (!pvariable_get("modulesInitialize")) {
  	moduleInitialize();
  	pvariable_set("modulesInitialize=1");
      }
  
      /* Initialize PC Card, if we haven't already done so. */
  #ifdef PCCARD_ARCH
      if (!variable_cmp(VAR_SKIP_PCCARD, "YES") &&
        variable_get(VAR_SKIP_PCCARD)!=1 &&
         !pvariable_get("pccardInitialize")) {
  	pccardInitialize();
  	pvariable_set("pccardInitialize=1");
      }
  #endif
  
      /* Probe for all relevant devices on the system */
      deviceGetAll();
  
      /* Prompt for the driver floppy if appropriate. */
      if (!pvariable_get("driverFloppyCheck")) {
  	driverFloppyCheck();
  	pvariable_set("driverFloppyCheck=1");
      }
  
      /* First, see if we have any arguments to process (and argv[0] counts if it's not "sysinstall") */
      if (!RunningAsInit) {
  	int i, start_arg;
  
  	if (!strstr(argv[0], "sysinstall"))
  	    start_arg = 0;
  	else if (Fake || Restarting)
  	    start_arg = 2;
  	else
  	    start_arg = 1;
  	for (i = start_arg; i < argc; i++) {
  	    if (DITEM_STATUS(dispatchCommand(argv[i])) != DITEM_SUCCESS)
  		systemShutdown(1);
  	}
  	if (argc > start_arg)
  	    systemShutdown(0);
      }
      else
  	dispatch_load_file_int(TRUE);
  
      status = setjmp(BailOut);
      if (status) {
  	msgConfirm("A signal %d was caught - I'm saving what I can and shutting\n"
  		   "down.  If you can reproduce the problem, please turn Debug on\n"
  		   "in the Options menu for the extra information it provides\n"
  		   "in debugging problems like this.", status);
  	systemShutdown(status);
      }
  
      /* Get user's country and keymap */
      if (RunningAsInit)
  	configCountry(NULL);
  
      /* Begin user dialog at outer menu */
      dialog_clear();
      while (1) {
  	choice = scroll = curr = max = 0;
  	dmenuOpen(&MenuInitial, &choice, &scroll, &curr, &max, TRUE);
  	if (getpid() != 1
  #if defined(__alpha__) || defined(__sparc64__)
  	    || !msgNoYes("Are you sure you wish to exit?  The system will halt.")
  #else
  	    || !msgNoYes("Are you sure you wish to exit?  The system will reboot\n"
  		         "(be sure to remove any floppies/CDs/DVDs from the drives).")
  #endif
  	    )
  	    break;
      }
  
      /* Say goodnight, Gracie */
      systemShutdown(0);
  
      return 0; /* We should never get here */
  }
  