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

/*	there are two optional command line parameters:

	1	the port number of the server
	2	the name of the interface to serve
*/

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

#include "server.h"


#define default_server_port		0
#define default_interface_name	NULL


int main( int argc, char *argv[] )
	{
	int				server_port;
	char			*interface_name;


	argv++;							/* point at first parameter (if any) */

	/*	get the server's port number from optional first parameter */
	if( argc <= 1 )
		server_port = default_server_port;
	else if( (server_port = atoi(*argv)) < 0 )
		{
		fprintf(stderr, "port number '%s' cannot be negative\n", *argv);
		exit(EXIT_FAILURE);
		}
	else
		argv++;						/* point at second parameter (if any) */

	if( argc <= 2 )
		interface_name = default_interface_name;
	else
		interface_name = *argv++;	/* point at third parameter (if any) */

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

	exit(EXIT_SUCCESS);
	}