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// $Id$ --*- c++ -*--
// Copyright (C) 2011 Daniel Hokka Zakrisson <daniel@hozac.com>
//
// 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; version 2 of the License.
//
// 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.
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <sys/utsname.h>
#include <ctype.h>
int
vc_get_kernel()
{
static int linux_ver = -1;
if (linux_ver == -1) {
struct utsname uts;
char *p;
int part, n;
if (uname(&uts) == -1)
return -1;
part = 0;
n = 0;
linux_ver = 0;
for (p = uts.release; *p && part < 3; p++) {
if (*p == '.') {
if (part < 3) {
linux_ver |= n << (8 * (2 - part));
n = 0;
part++;
}
}
else if (isdigit(*p)) {
n *= 10;
n += *p - '0';
}
else
break;
}
if (n > 0 && part < 3)
linux_ver |= n << (8 * (2 - part));
}
return linux_ver;
}
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