diff options
Diffstat (limited to 'libbb/kernel_version.c')
| -rw-r--r-- | libbb/kernel_version.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/libbb/kernel_version.c b/libbb/kernel_version.c index 7769a091b..6bb32ce5f 100644 --- a/libbb/kernel_version.c +++ b/libbb/kernel_version.c @@ -19,15 +19,17 @@ int FAST_FUNC get_linux_version_code(void) { struct utsname name; char *t; - int i, r; + int r; uname(&name); /* never fails */ - t = name.release; - r = 0; - for (i = 0; i < 3; i++) { - t = strtok(t, "."); - r = r * 256 + (t ? atoi(t) : 0); - t = NULL; - } - return r; + t = name.release - 1; + r = 1; + do { + r <<= 8; + if (t) { + r += atoi(++t); + t = strchr(t, '.'); + } + } while (r < 0x1000000); + return r - 0x1000000; } |