thirdparty/util-linux
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lib: [linux_version.c] simplify version parsing

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Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2011-06-20 13:48:40 +02:00
parent 99fbc877e5
commit 85d5acb8d2
1 changed files with 11 additions and 11 deletions
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22
lib/linux_version.c
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@ -3,23 +3,23 @@
#include "linux_version.h" #include "linux_version.h"
int int get_linux_version (void)
get_linux_version (void)
{ {
static int kver = -1; static int kver = -1;
struct utsname uts; struct utsname uts;
int major; int major = 0;
int minor; int minor = 0;
int teeny; int teeny = 0;
int n;
if (kver != -1) if (kver != -1)
return kver; return kver;
if (uname (&uts)) if (uname (&uts))
kver = 0; return kver = 0;
else if (sscanf (uts.release, "%d.%d.%d", &major, &minor, &teeny) == 3)
kver = KERNEL_VERSION (major, minor, teeny);
else if (sscanf (uts.release, "%d.%d", &major, &minor) == 2)
kver = KERNEL_VERSION (major, minor, 0);
return kver; n = sscanf(uts.release, "%d.%d.%d", &major, &minor, &teeny);
if (n < 1 || n > 3)
return kver = 0;
return kver = KERNEL_VERSION(major, minor, teeny);
} }