Colony

/**

 * @file options.c

 *

 * @brief Options for ColonetServer

 *

 * @author Eugene Marinelli

 *

 * @date 2/13/07

 *

 * @bug Usage not written

 */

#include <stdio.h>

#include <getopt.h>

#include <string.h>

#include <stdlib.h>

#include <colonet_defs.h>

#include "includes/options.h"

ColonetServerOptionsT optionsG;

/**

 * @brief Prints the usage of the program

 */

static void printUsage() {

  printf("Colonet Server\n");

  printf("  ./ColonetServer [-h (help)] [-p server_listen_port]\n");

  printf("  [-w wireless_port_file_desc (e.g. /dev/ttyUSB0)]\n");

  printf("  [-l log_filename] [-s (enable listener mode)]\n");

}

/**

 * @brief Parses the command line arguments

 *

 * @param argc The number of arguments passed to the program

 * @param argv The arguments passed to the program

 *

 * @return Void

 */

void parseCmdLine(int argc, char** argv) {

  int c;

  memset(&optionsG, 0, sizeof(ColonetServerOptionsT));

  if (argc < 2) {

    printf("No port was specified for listening for client connections."

           "  Defaulting to %d\n", DEFAULTPORT);

  }

  /* Defaults */

  optionsG.listen_port = DEFAULTPORT;

  strcpy(optionsG.wireless_port, USB_PORT);

  optionsG.logging_enabled = false;

  optionsG.listener_mode = false;

  /* Parse args */

  while (1) {

    c = getopt(argc, argv, "p:l:w:sh");

    if (c == -1) {

      break;

    }

    switch (c) {

    case 'p':

      /* Listen port */

      optionsG.listen_port = atoi(optarg);

      if (optionsG.listen_port < SMALLEST_POSS_LISTEN_PORT) {

        printf("You cannot listen on a port less than %d.\n", 

               SMALLEST_POSS_LISTEN_PORT);

        printf("Setting listener port to %d\n", DEFAULTPORT);

        optionsG.listen_port = DEFAULTPORT;

      }

      break;

    case 'w':

      /* Set wireless port */

      strcpy(optionsG.wireless_port, optarg);

      break;

    case 'l':

      /* Set log filename (and enable logging) */

      strcpy(optionsG.log_filename, optarg);

      optionsG.logging_enabled = true;

      break;

    case 's':

      /* Enable listener mode */

      optionsG.listener_mode = true;

      break;

    case 'h':

      printUsage();

      exit(1);

    }

  }

}