mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-30 23:21:02 +00:00
38 lines
793 B
C
38 lines
793 B
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include <sys/utsname.h> /* for uname(2) */
|
|
|
|
#include "libbb.h"
|
|
|
|
/* Returns current kernel version encoded as major*65536 + minor*256 + patch,
|
|
* so, for example, to check if the kernel is greater than 2.2.11:
|
|
*
|
|
* if (get_linux_version_code() > KERNEL_VERSION(2,2,11)) { <stuff> }
|
|
*/
|
|
int get_linux_version_code(void)
|
|
{
|
|
struct utsname name;
|
|
char *s;
|
|
int i, r;
|
|
|
|
if (uname(&name) == -1) {
|
|
bb_perror_msg("cannot get system information");
|
|
return 0;
|
|
}
|
|
|
|
s = name.release;
|
|
r = 0;
|
|
for (i = 0; i < 3; i++) {
|
|
r = r * 256 + atoi(strtok(s, "."));
|
|
s = NULL;
|
|
}
|
|
return r;
|
|
}
|