libvirt/src/util/virnetdevvlan.c
Eric Blake 4ecb723b9e maint: fix up copyright notice inconsistencies
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/
2012-09-20 16:30:55 -06:00

95 lines
2.3 KiB
C

/*
* Copyright (C) 2009-2012 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authors:
* Laine Stump <laine@redhat.com>
*/
#include <config.h>
#include "internal.h"
#include "virterror_internal.h"
#include "virnetdevvlan.h"
#include "memory.h"
#define VIR_FROM_THIS VIR_FROM_NONE
void
virNetDevVlanClear(virNetDevVlanPtr vlan)
{
VIR_FREE(vlan->tag);
vlan->nTags = 0;
}
void
virNetDevVlanFree(virNetDevVlanPtr vlan)
{
if (vlan)
virNetDevVlanClear(vlan);
VIR_FREE(vlan);
}
int
virNetDevVlanEqual(const virNetDevVlanPtr a, const virNetDevVlanPtr b)
{
int ai, bi;
if (!(a || b))
return true;
if (!a || !b)
return false;
if (a->trunk != b->trunk ||
a->nTags != b->nTags) {
return false;
}
for (ai = 0; ai < a->nTags; ai++) {
for (bi = 0; bi < b->nTags; bi++) {
if (a->tag[ai] == b->tag[bi])
break;
}
if (bi >= b->nTags) {
/* no matches for a->tag[ai] anywhere in b->tag */
return false;
}
}
return true;
}
/*
* virNetDevVlanCopy - copy from src into (already existing) dst.
* If src is NULL, dst will have nTags set to 0.
* dst is assumed to be empty on entry.
*/
int
virNetDevVlanCopy(virNetDevVlanPtr dst, const virNetDevVlanPtr src)
{
if (!src || src->nTags == 0)
return 0;
if (VIR_ALLOC_N(dst->tag, src->nTags) < 0) {
virReportOOMError();
return -1;
}
dst->trunk = src->trunk;
dst->nTags = src->nTags;
memcpy(dst->tag, src->tag, src->nTags * sizeof(*src->tag));
return 0;
}