/*
 * eql_emancipate
 *
 * modeled from eql_enslave.c by Simon Janes
 *
 * (c) Copyright 2001 Arnaud G. Gibert
 * Misys
 *
 * (c) Copyright 1995 Simon Janes
 * NCM: Network and Communications Management, Inc.
 */

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

#include <sys/types.h>
#include <sys/socket.h>

#include <linux/sockios.h>
#include <linux/if.h>

#include "/usr/src/linux/include/linux/if_eql.h"





void check_running(char *device_name);

int s;

int
main(int argc, char **argv)
{
    struct ifreq ifr;
    slaving_request_t slaving_request;
    char master_name[16];
    int slave_mtu;
    int master_mtu;

    if (argc != 3)
    {
	fprintf (stderr, "usage: %s <master> <slave>\n", argv[0]);
	exit (1);
    }
  
    strcpy (master_name, argv[1]);
    strcpy (slaving_request.slave_name, argv[2]);

    s = socket (AF_INET, SOCK_DGRAM, 0);
    if ( s == -1)
    {
	perror ("socket");
	exit (1);
    }

    check_running (master_name);
    check_running (slaving_request.slave_name);

    strcpy (ifr.ifr_name, master_name);
    ifr.ifr_data = (caddr_t) &slaving_request;
  
    if(ioctl (s,EQL_EMANCIPATE, &ifr)==-1)
    {
	perror("EQL_EMANCIPATE failed");
	exit (1);
    }

    return 0;
}

void
check_running(char *name)
{
    struct ifreq ifr;

    strcpy (ifr.ifr_name, name);
    if ( ioctl (s, SIOCGIFFLAGS, &ifr) == -1)
    {
	perror (name);
	exit (1);
    }
    if (ifr.ifr_flags & (IFF_RUNNING | IFF_UP) != (IFF_RUNNING | IFF_UP))
    {
	fprintf (stderr, "Device '%s' is not up or running.\n", name);
	exit (1);
    }
}


/*
 * Local Variables:
 * compile-command: "gcc -Wall -Wstrict-prototypes -o eql_emancipate eql_emancipate.c"
 * End:
 */