mirror of
https://github.com/sheumann/hush.git
synced 2024-11-05 06:07:00 +00:00
0ef64bdb40
This change retains "or later" state! No licensing _changes_ here, only form is adjusted (article, space between "GPL" and "v2" and so on). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
39 lines
858 B
C
39 lines
858 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 source tree.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
/* After libbb.h, since it needs sys/types.h on some systems */
|
|
#include <sys/utsname.h> /* for uname(2) */
|
|
|
|
|
|
/* 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 FAST_FUNC get_linux_version_code(void)
|
|
{
|
|
struct utsname name;
|
|
char *s;
|
|
int i, r;
|
|
|
|
if (uname(&name) == -1) {
|
|
bb_perror_msg("can't 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;
|
|
}
|