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/*
*
* Copyright (c) International Business Machines Corp., 2003
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
*
* AUTHOR
* Paul Larson <plars@linuxtestproject.org>
*
* DESCRIPTION
* Compare a given kernel version against the current kernel version.
* If they are the same - return 0
* If the argument is > current kernel version - return positive int
* If the argument is < current kernel version - return negative int
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/utsname.h>
void get_kver(int *k1, int *k2, int *k3)
{
struct utsname uval;
char *kver;
char *r1, *r2, *r3;
#if !defined(linux)
extern char *strsep(); /* shut up some compilers */
#endif
uname(&uval);
kver = uval.release;
r1 = strsep(&kver, ".");
r2 = strsep(&kver, ".");
r3 = strsep(&kver, ".");
*k1 = atoi(r1);
*k2 = atoi(r2);
*k3 = atoi(r3);
}
int tst_kvercmp(int r1, int r2, int r3) {
int a1, a2, a3;
int testver, currver;
get_kver(&a1, &a2, &a3);
testver = (r1 << 16) + (r2 << 8) + r3;
currver = (a1 << 16) + (a2 << 8) + a3;
return currver - testver;
}
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