/*	clientmain.c	- a client main program running under unix
					  that uses the socket interface to tcp or udp */

/*	there are two command line parameters (the second is optional):

	1	the port number of the server
	2	the name of the node on which the server is running
*/

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

#include "client.h"



int main( int argc, char *argv[] )
	{
	int						server_port;		/* port number of server */
	char					*server_node;		/* name of server's node */


	/*	there must be at least one command line argument */
	if( argc <= 1 )
		{
		fprintf(stderr, "usage: client server-port [server-node [args]]\n");
		exit( EXIT_FAILURE);
		}
	argv++;								/* point at first parameter */

	/*	get the server's port number from the required first parameter */
	if( (server_port = atoi(*argv)) <= 0 )
		{
		fprintf(stderr, "server-port '%s' must be a positive integer\n", *argv);
		exit( EXIT_FAILURE);
		}
	argv++;								/* point at second parameter (if any) */
	

	/*	get the server's node name from optional second parameter */
	if( argc <= 2 )
		server_node = NULL;
	else
		server_node = *argv++;			/* point at third parameter (if any) */

	/*	now let the common client do the real work */
	client(server_port, server_node, argc-3, argv);

	exit(EXIT_SUCCESS);
	}