/* virt-hostinfo
 * Copyright (C) 2009 Red Hat Inc.
 *
 * 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 of the License, or
 * (at your option) any later version.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include <apr_general.h>
#include <apr_network_io.h>
#include <apr_getopt.h>

#include "hostinfod.h"

const char *conf_file = DEFAULT_CONF_FILE;
const char *socket_dir = DEFAULT_SOCKET_DIR;
char *guests_file = NULL;
int socket_dir_set_on_cmdline = 0;
int debug = 0;
int debug_set_on_cmdline = 0;
int verbose = 0;
int verbose_set_on_cmdline = 0;
int foreground = 0;
int foreground_set_on_cmdline = 0;
apr_pool_t *pool = NULL;

static void
usage (void)
{
  printf ("hostinfod (virt-hostinfo daemon)\n"
	  "Copyright (C) 2009 Red Hat Inc.\n"
	  "\n"
	  "Usage:\n"
	  "  hostinfod [--options]\n"
	  "\n"
	  "Options:\n"
	  "  --help           Display full usage\n"
	  "  -c file | --config file\n"
	  "                   Configuration file (default: %s)\n"
	  "  -d | --debug     Enable debug messages to stderr (implies -v)\n"
	  "  -f | --foreground\n"
	  "                   Run in the foreground (don't fork)\n"
	  "  -s dir | --socketdir dir\n"
	  "                   Socket directory (default: %s)\n"
	  "  -v               Enable verbose messages (sent to syslog, and to\n"
	  "                     stderr if -d option is given)\n",
	  DEFAULT_CONF_FILE, DEFAULT_SOCKET_DIR);
}

int
main (int argc, char *argv[])
{
  static const apr_getopt_option_t options[] = {
    { "config", 'c', TRUE, "configuration file" },
    { "debug", 'd', FALSE, "enable debug messages to stderr" },
    { "foreground", 'f', FALSE, "run in foreground (don't fork)" },
    { "socketdir", 's', TRUE, "socket directory" },
    { "verbose", 'v', FALSE, "enable verbose messages" },
    { "help", '?', FALSE, "display help" },
    { NULL, 0, 0, NULL },
  };
  apr_status_t r;
  apr_getopt_t *opt;
  int c;
  const char *optarg;

  apr_initialize ();
  apr_pool_create (&pool, NULL);

  apr_getopt_init (&opt, pool, argc, argv);

  while ((r = apr_getopt_long (opt, options, &c, &optarg)) == APR_SUCCESS) {
    switch (c) {
    case 'c':
      conf_file = optarg;
      /* If the user is specifying this on the command line, then
       * it should exist.  They may have typo'd the name.
       */
      if (access (conf_file, R_OK) == -1) {
	perror (conf_file);
	exit (1);
      }
      break;
    case 'd':
      debug = verbose = 1;
      debug_set_on_cmdline = verbose_set_on_cmdline = 1;
      break;
    case 'f':
      foreground = 1;
      foreground_set_on_cmdline = 1;
      break;
    case 's':
      socket_dir = optarg;
      socket_dir_set_on_cmdline = 1;
      break;
    case 'v':
      verbose = 1;
      verbose_set_on_cmdline = 1;
      break;
    case '?':
      usage ();
      exit (0);
    default:
      abort ();
    }
  }
  if (r != APR_EOF) {
    fprintf (stderr, "%s: unknown command line option\n", argv[0]);
    exit (1);
  }

  read_main_conf_file ();








  /* Daemonize. */
  chdir ("/");
  if (!foreground)
    apr_proc_detach (1);



  apr_terminate ();
  return 0;
}