text: /*
   *
   *   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;
  }
  