oskit/oskit-20020317/knit/c/first_etherdev.c

63 lines
1.9 KiB
C
Executable File

/*
* Copyright (c) 2000 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
#include <oskit/dev/ethernet.h>
#include <oskit/net/ether.h>
#include <oskit/dev/dev.h>
#include <stdlib.h>
oskit_etherdev_t *etherdev = 0;
unsigned char ethaddr[ETHER_ADDR_SIZE] = {0};
oskit_error_t
init(void)
{
oskit_etherdev_t **etherdevs;
oskit_size_t ndev;
int i;
/*
* Find all the Ethernet device nodes, BUT ONLY USE THE 1ST ONE.
*/
ndev = osenv_device_lookup(&oskit_etherdev_iid, (void***)&etherdevs);
if (ndev != 0) {
for (i = 1; i < ndev; i++) {
oskit_etherdev_release(etherdevs[i]);
}
oskit_etherdev_getaddr(etherdevs[0], ethaddr);
etherdev = etherdevs[0];
free(etherdevs);
return 0;
} else {
/* It's not clear whether we need to free etherdevs or not. */
return OSKIT_ENODEV;
}
}
oskit_error_t
fini(void)
{
if (etherdev) {
oskit_etherdev_release(etherdev);
etherdev = 0;
}
return 0;
}