linux_version.c

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#include <stdio.h>
#include <sys/utsname.h>
 
#include "linux_version.h"
 
int get_linux_version (void)
{
    static int kver = -1;
    struct utsname uts;
    int major = 0;
    int minor = 0;
    int teeny = 0;
    int n;
 
    if (kver != -1)
        return kver;
    if (uname (&uts))
        return kver = 0;
 
    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);
}