smartd.cpp

/*
 * Home page of code is: http://smartmontools.sourceforge.net
 *
 * Copyright (C) 2002 Bruce Allen <smartmontools-support@lists.sourceforge.net>
 * Copyright (C) 2000 Michael Cornwell <cornwell@acm.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * You should have received a copy of the GNU General Public License
 * (for example COPYING); if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * This code was originally developed as a Senior Thesis by Michael Cornwell
 * at the Concurrent Systems Laboratory (now part of the Storage Systems
 * Research Center), Jack Baskin School of Engineering, University of
 * California, Santa Cruz. http://ssrc.soe.ucsc.edu/
 *
 */

#include <stdio.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <linux/hdreg.h>
#include <syslog.h>
#include <stdarg.h>

#include "atacmds.h"
#include "scsicmds.h"
#include "smartd.h"
#include "ataprint.h"

extern const char *CVSid1, *CVSid2;
const char *CVSid3="$Id: smartd.cpp,v 1.23 2002/10/24 10:53:50 ballen4705 Exp $" 
CVSID1 CVSID4 CVSID7;

int daemon_init(void){
  pid_t pid;
  
  if ( (pid = fork()) < 0)
    // unable to fork!
    return -1;
  else if (pid != 0)
    // we are the parent process -- exit
    exit (0);

  // from here on, we are the child process
  setsid ();
  chdir("/");
  umask(0);
  return(0);
}


// This function prints either to stdout or to the syslog as needed
void printout(int priority,char *fmt, ...){
  va_list ap;
  // initialize variable argument list 
 va_start(ap,fmt);
  if (debugmode)
    vprintf(fmt,ap);
  else
    vsyslog(priority,fmt,ap);
  va_end(ap);