proj1_server.h

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#include <string.h>
#include <iostream>

using std::cerr;
using std::cout;
using std::endl;

/*********************************
 * Name:    help_message
 * Purpose: display to the users how to run this program
 *          also show users the available parameters
 * Recieve: none
 * Return:  none
 *********************************/
void help_message()
{
    cerr << "[ERR] Usage ./lab1_server [options]" << endl;
    cout << "[ERR] The following option is available:" << endl;
    cout << "      -h        Display help message." << endl;
}

/*********************************
 * Name:    parse_argv
 * Purpose: parse the parameters
 * Recieve: argv and argc
 * Return:  none
 * NOTE:    In fact we do not need this. I leave it here, so that
 *          it can capture invalid parameters.
 *********************************/
void parse_argv(int argc, char *argv[])
{
    for(int i = 1; i < argc; i++)
    {
        if((!strncmp(argv[i], "-h", 2)) ||
           (!strncmp(argv[i], "-H", 2)))
        {
            help_message();
            exit(1);
        } else {
            cerr << "[ERR] Invalid parameter:" << argv[i] << endl;
            help_message();
            exit(1);
        }
    }
}