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    Length: 5219 (0x1463)
    Types: TextFile
    Names: »main.c«

└─⟦9ae75bfbd⟧ Bits:30007242 EUUGD3: Starter Kit
    └─⟦653021b30⟧ »EurOpenD3/utils/downtime.tar.Z« 
        └─⟦946c717da⟧ 
            └─⟦this⟧ »main.c« 

TextFile

/* 
 * Copyright (c) 1988 Michael A. Cooper, University of Southern California.
 * This program may be used, copied, modified, and redistributed freely
 * for noncommercial purposes, so long as this notice remains intact.
 */

#ifndef lint
static char *RCSid = "$Header: main.c,v 4.2 88/07/05 16:00:14 mcooper Exp $";
#endif

/*
 *------------------------------------------------------------------
 *
 * $Source: /usr/skat3/src/common/usc/etc/downtime/RCS/main.c,v $
 * $Revision: 4.2 $
 * $Date: 88/07/05 16:00:14 $
 * $State: Exp $
 *
 *------------------------------------------------------------------
 *
 * Michael A. Cooper
 * Research and Development Group
 * University Computing Services 
 * University of Southern California
 * (mcooper@oberon.USC.EDU)
 *
 *------------------------------------------------------------------
 *
 * $Log:	main.c,v $
 * Revision 4.2  88/07/05  16:00:14  mcooper
 * Added copyright notice.
 * 
 * Revision 4.1  88/06/30  10:08:57  mcooper
 * Fixed -u problem that caused no checktime()
 * to be run.
 * 
 * Revision 4.0  88/04/20  15:42:42  mcooper
 * Version 4.
 * 
 * Revision 3.4  88/04/19  18:25:51  mcooper
 * Replace debug with verbose.
 * 
 * Revision 3.3  88/04/11  19:48:27  mcooper
 * Converted all dt_flags to use flag
 * bits.
 * 
 * Revision 3.2  88/03/01  15:48:00  mcooper
 * Cleaned up header files.
 * 
 * Revision 3.1  88/02/11  19:00:28  mcooper
 * Fixed bug that caused cancel messages
 * to be send when shutdown time arrived.
 * 
 * Revision 3.0  87/07/24  14:19:50  mcooper
 * Version 3.
 * 
 *------------------------------------------------------------------
 */


#include "defs.h"
#include <signal.h>
#include "parse.h"

#define USAGE   "Usage: %s [ -qf ] [ -krh ] command [ arguments ]\n"

int killflg = TRUE;                 /* Kill on shutdown */
int reboot = FALSE;                 /* Reboot on shutdown */
int halt = FALSE;                   /* Halt on shutdown */
int fake = FALSE;                   /* Fake shutdown */
int fastboot = FALSE;               /* Do a fastboot(8) */
int nosync = FALSE;                 /* No disk sync */
int iflag = FALSE;                  /* Force interactive session */
int uflag = FALSE;                  /* Unlock all entries (at boot) */
int force = FALSE;                  /* Force mode */
int quiet = FALSE;                  /* Be quiet about what we're doing */
int shortshutmsg = TRUE;
int verbose = 1;                    /* Verbosity level */

char *prog = "DownTime";            /* The name of this program */
char *nologin = NOLOGIN;            /* File to turn off logins */

/*
 * Ccmd buffers 
 */
int cmdbuf[STRSIZE];
char atmbuf[STRSIZE];
char wrkbuf[STRSIZE];
char command[STRSIZE];

main(argc, argv)
int argc;
char **argv;
{
  register int x;
  int catch(), catchcont();
  extern int okayuser;

  for (x = 1; x < argc; x++) {
    if (argv[x][0] != '-')
      break;
    switch (argv[x][1]) {
      case 'k':
        killflg = FALSE;
	fake = TRUE;
        break;
      case 'd':
        verbose = 10;
        break;
      case 'r':
        reboot = TRUE;
        break;
      case 'h':
        halt = TRUE;
        break;
      case 'i':
        iflag = TRUE;
        break;
      case 'q':
        quiet = TRUE;
        break;
      case 'F':
        force = TRUE;
        break;
      case 'u':
        uflag = TRUE;
        break;
      case 'f':
	fastboot = TRUE;
	break;
      case 'n':
	nosync = TRUE;
	break;
      case '?':
      default:
        usage();
        exit(2);
    }
  }
  argc -= x;
  argv += x;

  if (nosync && fastboot) {
    fprintf(stderr, "%s: -f and -n are not compatible options.\n", prog);
    exit(1);
  }

  /*
   * If we're super-user and config fails, its okay.
   */
  if (config(CFFILE) < 0) {
    fprintf(stderr, "%s: Configuration failed.\n", prog);
    if (getuid() != ROOT) {
      exit(1);
    } else {
      fprintf(stderr, "But you are the super-user.\n");
    }
  }

  if (!okayuser) {
    fprintf(stderr, "%s: You are not authorized to run this program.\n", prog);
    exit(1);
  }

  signal(SIGINT, catch);
  signal(SIGQUIT, catch);

  /*
   * set umask for file creation
   */
  umask(02);

  if (uflag) {
    dtlock(NULL, L_UNLOCK);
    checktime();
    exit(0);
  }

  if (argc == 0) {
    iflag = TRUE;
  }

  command[0] = 0;

  if (!iflag) {
    while(*argv != NULL) {
      strcat(command, *argv++);
      strcat(command, " ");
    }
    command[strlen(command)-1] = '\n';
  }

  signal(SIGCONT, catchcont);
  cmbufs(cmdbuf, STRSIZE, atmbuf, STRSIZE, wrkbuf, STRSIZE);
  cmseti(stdin,stdout,stderr);
  toplevel();
  cmdone();
}

/*
 * usage - Print usage information.
 */
usage()
{
  fprintf(stderr, USAGE, prog);
}

/*
 * catchcont - Catch SIGCONT (after suspend).
 */

catchcont()
{
  printf("\n%s", PROMPT);
  fflush(stdout);
  return;
}

/*
 * catch - Catch interupts and make sure user really wants to exit.
 */
catch()
{
  pval val;
  fdb *used;

  dprintf("catch called.\n");
  if (iflag) {
    prompt("Do you really want to exit? ");
    parse(&ynfdb, &val, &used);

    confirm();

    if (val._pvint == YES) {
      unlink(nologin);
      cmdone();
      exit(1);
    }
    toplevel();
  } else {
    unlink(nologin);
    exit(1);
  }
}