/* ************************** Main ************************* */

int main(int argc, char *argv[])

{

//// Begin Getopt Sample, EDITME!Sometime

		   int aflag = 0;

	       int bflag = 0;

	       char *cvalue = NULL;

	       int index;

	       int c;

	       opterr = 0;

	       while ((c = getopt (argc, argv, "abc:")) != -1)

	         switch (c)

	           {

	           case 'a':

	             aflag = 1;

	             break;

	           case 'b':

	             bflag = 1;

	             break;

	           case 'c':

	             cvalue = optarg;

	             break;

	           case '?':

	             if (optopt == 'c')

	               fprintf (stderr, "Option -%c requires an argument.\n", optopt);

	             else if (isprint (optopt))

	               fprintf (stderr, "Unknown option `-%c'.\n", optopt);

	             else

	               fprintf (stderr,

	                        "Unknown option character `\\x%x'.\n",

	                        optopt);

	             return 1;

	           default:

	             abort ();

	           }

	       printf ("aflag = %d, bflag = %d, cvalue = %s\n",

	               aflag, bflag, cvalue);

	       for (index = optind; index < argc; index++)

	         printf ("Non-option argument %s\n", argv[index]);

//// End getopt sample

// Begin non-working framework?

	int distrend_do_config(int argc, char *argv[], struct distrend_config *config)

	{

	  cfg_opt_t myopts_listen[] =

	    {

	      CFG_SIMPLE_STR("type", NULL),

	      CFG_SIMPLE_STR("path", NULL),

	      CFG_SIMPLE_INT("port", NULL),

	      CFG_END()

	  };

	  cfg_opt_t myopts[] =

	    {

	      CFG_SEC("listen",  /* this must be imported into struct listens (which must still be declared) */

		      myopts_listen

		      ,

		      CFGF_MULTI),

	      CFG_END()

	    };

	  config = malloc(sizeof(struct distrend_config));

	  options_init(argc, argv, &config->mycfg, myopts, "server", &config->options);

	  return 0;

	}

	int distrend_config_free(struct distrend_config *config)

	{

	  options_free(config->options);

	  free(config);

	  return 0;

	}

// End non-working framework?

  int cont = 1;

  struct distrend_listenset *listenset;

  struct distrend_config *config;

  distrend_do_config(argc, argv, config);

  distrend_listen(&listenset, config);

  /* This is called the ``main loop'' */

  while(cont)

    {

      struct distren_action *action;

      distrend_accept(&action);

      cont = distrend_do(action);

      distrend_action_free(action);

    }

  distrend_unlisten(listenset);

  distrend_config_free(config);

  return 0;

}

/*

 * **********************************************************************************

 * Slave functions / etc resides below. Wouldn't a seperate file make this easier??

 *

 * Slave listens on server for a command in the format of each function...

 * We need if's for returns... ==> watchdog

 * **********************************************************************************

*/

// Registration on server. Needs attention. Prevent account spamming.

// Key transfer?

// Set up something like: distrend -c username email@example.com

void registeruser(char *username, char *email){

  // Logs into sandboxed user on zserver2 and registers a user. Should eventually generate a key on the server and return it to the user.

  // All created user accounts should be sandboxed accordingly, requiring a different skel, and the default shell to be rbash. Also,

  // a custom path defined in the .bash_profile of the skel is needed.

  char buf[10];

  struct execio *testrem;

  char *execargv[] =

    {

  "ssh",

  "distren_setup@protofusion.org",

  "-i",

  "setup.rsa", // default distributed key, account can only create users.

  "-p",

  "23",

  "sudo /usr/sbin/useradd",

  "-M",

  "-c",

  email,

  "-d",

  "/home/distren",

  "--gid",

  "541", // Add in shellscript to generate ssh key and return it to the user somehow

  username,

  (char *)NULL

  };

  size_t readlen;

  fprintf(stderr, "Opening stream:\n", execio_open(&testrem, "ssh", execargv));

  buf[9] = '\0'; // null-terminating the array...

  while(!execio_read(testrem, buf, 9, &readlen)) // What's with the readlen stuff?

    {

      if(readlen > 9) {

	fprintf(stderr, "!!!! Something is terribly wrong!\n");

      }

    buf[readlen] = '\0'; // Null-terminating the end of it again based on how large the data is?

    fprintf(stderr, "read \"%s\"\n", buf);

    }

  execio_close(testrem);

}

void loginuser(char *username){

  // Logs into sandboxed user on zserver2 as a client, currently does nothing

  char buf[10];

  struct execio *testrem;

  char *execargv[] =