1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <sys/utsname.h> /* for uname(2) */
29 /* Returns kernel version encoded as major*65536 + minor*256 + patch,
30 * so, for example, to check if the kernel is greater than 2.2.11:
31 * if (get_kernel_revision() <= 2*65536+2*256+11) { <stuff> }
33 extern int get_kernel_revision(void)
39 if (uname(&name) == -1) {
40 bb_perror_msg("cannot get system information");
46 for (i=0 ; i<3 ; i++) {
47 r = r * 256 + atoi(strtok(s, "."));